diff options
| author | David S. Miller <davem@davemloft.net> | 2011-11-28 19:21:10 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-28 19:21:10 -0500 |
| commit | 8317e2047ef7d70dd76bf1d571fecaa8d4deb06f (patch) | |
| tree | c400a600a4eb00da224b4e59e76396655e853d07 | |
| parent | 2c55a3d08ade44a778c182c220a7907ec65d5fb8 (diff) | |
| parent | 39338b56382ac640614851a80e0bd71994cc664d (diff) | |
| download | linux-8317e2047ef7d70dd76bf1d571fecaa8d4deb06f.tar.bz2 | |
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
167 files changed, 40219 insertions, 39230 deletions
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index c1c0678b1fb6..98db76196b59 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -42,7 +42,7 @@ obj-$(CONFIG_ADM8211) += adm8211.o obj-$(CONFIG_MWL8K) += mwl8k.o obj-$(CONFIG_IWLWIFI) += iwlwifi/ -obj-$(CONFIG_IWLWIFI_LEGACY) += iwlegacy/ +obj-$(CONFIG_IWLEGACY) += iwlegacy/ obj-$(CONFIG_RT2X00) += rt2x00/ obj-$(CONFIG_P54_COMMON) += p54/ diff --git a/drivers/net/wireless/ath/ath6kl/Makefile b/drivers/net/wireless/ath/ath6kl/Makefile index 8f7a0d1c290c..707069303550 100644 --- a/drivers/net/wireless/ath/ath6kl/Makefile +++ b/drivers/net/wireless/ath/ath6kl/Makefile @@ -23,7 +23,7 @@ obj-$(CONFIG_ATH6KL) := ath6kl.o ath6kl-y += debug.o -ath6kl-y += htc_hif.o +ath6kl-y += hif.o ath6kl-y += htc.o ath6kl-y += bmi.o ath6kl-y += cfg80211.o diff --git a/drivers/net/wireless/ath/ath6kl/bmi.c b/drivers/net/wireless/ath/ath6kl/bmi.c index c5d11cc536e0..a962fe4c6b7e 100644 --- a/drivers/net/wireless/ath/ath6kl/bmi.c +++ b/drivers/net/wireless/ath/ath6kl/bmi.c @@ -196,8 +196,6 @@ int ath6kl_bmi_done(struct ath6kl *ar) return ret; } - ath6kl_bmi_cleanup(ar); - return 0; } @@ -672,6 +670,11 @@ int ath6kl_bmi_fast_download(struct ath6kl *ar, u32 addr, u8 *buf, u32 len) return ret; } +void ath6kl_bmi_reset(struct ath6kl *ar) +{ + ar->bmi.done_sent = false; +} + int ath6kl_bmi_init(struct ath6kl *ar) { ar->bmi.cmd_buf = kzalloc(MAX_BMI_CMDBUF_SZ, GFP_ATOMIC); diff --git a/drivers/net/wireless/ath/ath6kl/bmi.h b/drivers/net/wireless/ath/ath6kl/bmi.h index 96851d5df24b..009e8f650ab1 100644 --- a/drivers/net/wireless/ath/ath6kl/bmi.h +++ b/drivers/net/wireless/ath/ath6kl/bmi.h @@ -230,6 +230,8 @@ struct ath6kl_bmi_target_info { int ath6kl_bmi_init(struct ath6kl *ar); void ath6kl_bmi_cleanup(struct ath6kl *ar); +void ath6kl_bmi_reset(struct ath6kl *ar); + int ath6kl_bmi_done(struct ath6kl *ar); int ath6kl_bmi_get_target_info(struct ath6kl *ar, struct ath6kl_bmi_target_info *targ_info); diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index 5ac2bc2ebee6..02526044acb9 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -23,8 +23,10 @@ #include "testmode.h" static unsigned int ath6kl_p2p; +static unsigned int multi_norm_if_support; module_param(ath6kl_p2p, uint, 0644); +module_param(multi_norm_if_support, uint, 0644); #define RATETAB_ENT(_rate, _rateid, _flags) { \ .bitrate = (_rate), \ @@ -123,17 +125,19 @@ static struct ieee80211_supported_band ath6kl_band_5ghz = { .bitrates = ath6kl_a_rates, }; -static int ath6kl_set_wpa_version(struct ath6kl *ar, +#define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ + +static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, enum nl80211_wpa_versions wpa_version) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); if (!wpa_version) { - ar->auth_mode = NONE_AUTH; + vif->auth_mode = NONE_AUTH; } else if (wpa_version & NL80211_WPA_VERSION_2) { - ar->auth_mode = WPA2_AUTH; + vif->auth_mode = WPA2_AUTH; } else if (wpa_version & NL80211_WPA_VERSION_1) { - ar->auth_mode = WPA_AUTH; + vif->auth_mode = WPA_AUTH; } else { ath6kl_err("%s: %u not supported\n", __func__, wpa_version); return -ENOTSUPP; @@ -142,25 +146,24 @@ static int ath6kl_set_wpa_version(struct ath6kl *ar, return 0; } -static int ath6kl_set_auth_type(struct ath6kl *ar, +static int ath6kl_set_auth_type(struct ath6kl_vif *vif, enum nl80211_auth_type auth_type) { - ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); switch (auth_type) { case NL80211_AUTHTYPE_OPEN_SYSTEM: - ar->dot11_auth_mode = OPEN_AUTH; + vif->dot11_auth_mode = OPEN_AUTH; break; case NL80211_AUTHTYPE_SHARED_KEY: - ar->dot11_auth_mode = SHARED_AUTH; + vif->dot11_auth_mode = SHARED_AUTH; break; case NL80211_AUTHTYPE_NETWORK_EAP: - ar->dot11_auth_mode = LEAP_AUTH; + vif->dot11_auth_mode = LEAP_AUTH; break; case NL80211_AUTHTYPE_AUTOMATIC: - ar->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; + vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; break; default: @@ -171,11 +174,11 @@ static int ath6kl_set_auth_type(struct ath6kl *ar, return 0; } -static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast) +static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) { - u8 *ar_cipher = ucast ? &ar->prwise_crypto : &ar->grp_crypto; - u8 *ar_cipher_len = ucast ? &ar->prwise_crypto_len : - &ar->grp_crypto_len; + u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; + u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : + &vif->grp_crypto_len; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", __func__, cipher, ucast); @@ -210,28 +213,35 @@ static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast) return 0; } -static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt) +static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); if (key_mgmt == WLAN_AKM_SUITE_PSK) { - if (ar->auth_mode == WPA_AUTH) - ar->auth_mode = WPA_PSK_AUTH; - else if (ar->auth_mode == WPA2_AUTH) - ar->auth_mode = WPA2_PSK_AUTH; + if (vif->auth_mode == WPA_AUTH) + vif->auth_mode = WPA_PSK_AUTH; + else if (vif->auth_mode == WPA2_AUTH) + vif->auth_mode = WPA2_PSK_AUTH; + } else if (key_mgmt == 0x00409600) { + if (vif->auth_mode == WPA_AUTH) + vif->auth_mode = WPA_AUTH_CCKM; + else if (vif->auth_mode == WPA2_AUTH) + vif->auth_mode = WPA2_AUTH_CCKM; } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { - ar->auth_mode = NONE_AUTH; + vif->auth_mode = NONE_AUTH; } } -static bool ath6kl_cfg80211_ready(struct ath6kl *ar) +static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) { + struct ath6kl *ar = vif->ar; + if (!test_bit(WMI_READY, &ar->flag)) { ath6kl_err("wmi is not ready\n"); return false; } - if (!test_bit(WLAN_ENABLED, &ar->flag)) { + if (!test_bit(WLAN_ENABLED, &vif->flags)) { ath6kl_err("wlan disabled\n"); return false; } @@ -239,15 +249,143 @@ static bool ath6kl_cfg80211_ready(struct ath6kl *ar) return true; } +static bool ath6kl_is_wpa_ie(const u8 *pos) +{ + return pos[0] == WLAN_EID_WPA && pos[1] >= 4 && + pos[2] == 0x00 && pos[3] == 0x50 && + pos[4] == 0xf2 && pos[5] == 0x01; +} + +static bool ath6kl_is_rsn_ie(const u8 *pos) +{ + return pos[0] == WLAN_EID_RSN; +} + +static bool ath6kl_is_wps_ie(const u8 *pos) +{ + return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && + pos[1] >= 4 && + pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && + pos[5] == 0x04); +} + +static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, + size_t ies_len) +{ + struct ath6kl *ar = vif->ar; + const u8 *pos; + u8 *buf = NULL; + size_t len = 0; + int ret; + + /* + * Clear previously set flag + */ + + ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; + + /* + * Filter out RSN/WPA IE(s) + */ + + if (ies && ies_len) { + buf = kmalloc(ies_len, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + pos = ies; + + while (pos + 1 < ies + ies_len) { + if (pos + 2 + pos[1] > ies + ies_len) + break; + if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { + memcpy(buf + len, pos, 2 + pos[1]); + len += 2 + pos[1]; + } + + if (ath6kl_is_wps_ie(pos)) + ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; + + pos += 2 + pos[1]; + } + } + + ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, + WMI_FRAME_ASSOC_REQ, buf, len); + kfree(buf); + return ret; +} + +static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) +{ + switch (type) { + case NL80211_IFTYPE_STATION: + *nw_type = INFRA_NETWORK; + break; + case NL80211_IFTYPE_ADHOC: + *nw_type = ADHOC_NETWORK; + break; + case NL80211_IFTYPE_AP: + *nw_type = AP_NETWORK; + break; + case NL80211_IFTYPE_P2P_CLIENT: + *nw_type = INFRA_NETWORK; + break; + case NL80211_IFTYPE_P2P_GO: + *nw_type = AP_NETWORK; + break; + default: + ath6kl_err("invalid interface type %u\n", type); + return -ENOTSUPP; + } + + return 0; +} + +static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, + u8 *if_idx, u8 *nw_type) +{ + int i; + + if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) + return false; + + if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && + ar->num_vif)) + return false; + + if (type == NL80211_IFTYPE_STATION || + type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { + for (i = 0; i < MAX_NUM_VIF; i++) { + if ((ar->avail_idx_map >> i) & BIT(0)) { + *if_idx = i; + return true; + } + } + } + + if (type == NL80211_IFTYPE_P2P_CLIENT || + type == NL80211_IFTYPE_P2P_GO) { + for (i = ar->max_norm_iface; i < MAX_NUM_VIF; i++) { + if ((ar->avail_idx_map >> i) & BIT(0)) { + *if_idx = i; + return true; + } + } + } + + return false; +} + static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_connect_params *sme) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); int status; - ar->sme_state = SME_CONNECTING; + vif->sme_state = SME_CONNECTING; - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { @@ -287,12 +425,19 @@ static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, } } - if (test_bit(CONNECTED, &ar->flag) && - ar->ssid_len == sme->ssid_len && - !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { - ar->reconnect_flag = true; - status = ath6kl_wmi_reconnect_cmd(ar->wmi, ar->req_bssid, - ar->ch_hint); + if (sme->ie && (sme->ie_len > 0)) { + status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); + if (status) + return status; + } + + if (test_bit(CONNECTED, &vif->flags) && + vif->ssid_len == sme->ssid_len && + !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { + vif->reconnect_flag = true; + status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, + vif->req_bssid, + vif->ch_hint); up(&ar->sem); if (status) { @@ -300,42 +445,43 @@ static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, return -EIO; } return 0; - } else if (ar->ssid_len == sme->ssid_len && - !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { - ath6kl_disconnect(ar); + } else if (vif->ssid_len == sme->ssid_len && + !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { + ath6kl_disconnect(vif); } - memset(ar->ssid, 0, sizeof(ar->ssid)); - ar->ssid_len = sme->ssid_len; - memcpy(ar->ssid, sme->ssid, sme->ssid_len); + memset(vif->ssid, 0, sizeof(vif->ssid)); + vif->ssid_len = sme->ssid_len; + memcpy(vif->ssid, sme->ssid, sme->ssid_len); if (sme->channel) - ar->ch_hint = sme->channel->center_freq; + vif->ch_hint = sme->channel->center_freq; - memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); + memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) - memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid)); + memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); - ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions); + ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); - status = ath6kl_set_auth_type(ar, sme->auth_type); + status = ath6kl_set_auth_type(vif, sme->auth_type); if (status) { up(&ar->sem); return status; } if (sme->crypto.n_ciphers_pairwise) - ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true); + ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); else - ath6kl_set_cipher(ar, 0, true); + ath6kl_set_cipher(vif, 0, true); - ath6kl_set_cipher(ar, sme->crypto.cipher_group, false); + ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); if (sme->crypto.n_akm_suites) - ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]); + ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); if ((sme->key_len) && - (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) { + (vif->auth_mode == NONE_AUTH) && + (vif->prwise_crypto == WEP_CRYPT)) { struct ath6kl_key *key = NULL; if (sme->key_idx < WMI_MIN_KEY_INDEX || @@ -346,56 +492,57 @@ static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, return -ENOENT; } - key = &ar->keys[sme->key_idx]; + key = &vif->keys[sme->key_idx]; key->key_len = sme->key_len; memcpy(key->key, sme->key, key->key_len); - key->cipher = ar->prwise_crypto; - ar->def_txkey_index = sme->key_idx; + key->cipher = vif->prwise_crypto; + vif->def_txkey_index = sme->key_idx; - ath6kl_wmi_addkey_cmd(ar->wmi, sme->key_idx, - ar->prwise_crypto, + ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, + vif->prwise_crypto, GROUP_USAGE | TX_USAGE, key->key_len, - NULL, + NULL, 0, key->key, KEY_OP_INIT_VAL, NULL, NO_SYNC_WMIFLAG); } if (!ar->usr_bss_filter) { - clear_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag); - if (ath6kl_wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) { + clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); + if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, + ALL_BSS_FILTER, 0) != 0) { ath6kl_err("couldn't set bss filtering\n"); up(&ar->sem); return -EIO; } } - ar->nw_type = ar->next_mode; + vif->nw_type = vif->next_mode; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: connect called with authmode %d dot11 auth %d" " PW crypto %d PW crypto len %d GRP crypto %d" " GRP crypto len %d channel hint %u\n", __func__, - ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, - ar->prwise_crypto_len, ar->grp_crypto, - ar->grp_crypto_len, ar->ch_hint); - - ar->reconnect_flag = 0; - status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, - ar->dot11_auth_mode, ar->auth_mode, - ar->prwise_crypto, - ar->prwise_crypto_len, - ar->grp_crypto, ar->grp_crypto_len, - ar->ssid_len, ar->ssid, - ar->req_bssid, ar->ch_hint, + vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, + vif->prwise_crypto_len, vif->grp_crypto, + vif->grp_crypto_len, vif->ch_hint); + + vif->reconnect_flag = 0; + status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, + vif->dot11_auth_mode, vif->auth_mode, + vif->prwise_crypto, + vif->prwise_crypto_len, + vif->grp_crypto, vif->grp_crypto_len, + vif->ssid_len, vif->ssid, + vif->req_bssid, vif->ch_hint, ar->connect_ctrl_flags); up(&ar->sem); if (status == -EINVAL) { - memset(ar->ssid, 0, sizeof(ar->ssid)); - ar->ssid_len = 0; + memset(vif->ssid, 0, sizeof(vif->ssid)); + vif->ssid_len = 0; ath6kl_err("invalid request\n"); return -ENOENT; } else if (status) { @@ -404,27 +551,28 @@ static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, } if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && - ((ar->auth_mode == WPA_PSK_AUTH) - || (ar->auth_mode == WPA2_PSK_AUTH))) { - mod_timer(&ar->disconnect_timer, + ((vif->auth_mode == WPA_PSK_AUTH) + || (vif->auth_mode == WPA2_PSK_AUTH))) { + mod_timer(&vif->disconnect_timer, jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); } ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; - set_bit(CONNECT_PEND, &ar->flag); + set_bit(CONNECT_PEND, &vif->flags); return 0; } -static int ath6kl_add_bss_if_needed(struct ath6kl *ar, const u8 *bssid, +static int ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, const u8 *bssid, struct ieee80211_channel *chan, const u8 *beacon_ie, size_t beacon_ie_len) { + struct ath6kl *ar = vif->ar; struct cfg80211_bss *bss; u8 *ie; - bss = cfg80211_get_bss(ar->wdev->wiphy, chan, bssid, - ar->ssid, ar->ssid_len, WLAN_CAPABILITY_ESS, + bss = cfg80211_get_bss(ar->wiphy, chan, bssid, + vif->ssid, vif->ssid_len, WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); if (bss == NULL) { /* @@ -435,16 +583,16 @@ static int ath6kl_add_bss_if_needed(struct ath6kl *ar, const u8 *bssid, * Prepend SSID element since it is not included in the Beacon * IEs from the target. */ - ie = kmalloc(2 + ar->ssid_len + beacon_ie_len, GFP_KERNEL); + ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); if (ie == NULL) return -ENOMEM; ie[0] = WLAN_EID_SSID; - ie[1] = ar->ssid_len; - memcpy(ie + 2, ar->ssid, ar->ssid_len); - memcpy(ie + 2 + ar->ssid_len, beacon_ie, beacon_ie_len); - bss = cfg80211_inform_bss(ar->wdev->wiphy, chan, + ie[1] = vif->ssid_len; + memcpy(ie + 2, vif->ssid, vif->ssid_len); + memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); + bss = cfg80211_inform_bss(ar->wiphy, chan, bssid, 0, WLAN_CAPABILITY_ESS, 100, - ie, 2 + ar->ssid_len + beacon_ie_len, + ie, 2 + vif->ssid_len + beacon_ie_len, 0, GFP_KERNEL); if (bss) ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "added dummy bss for " @@ -463,7 +611,7 @@ static int ath6kl_add_bss_if_needed(struct ath6kl *ar, const u8 *bssid, return 0; } -void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, +void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, u16 listen_intvl, u16 beacon_intvl, enum network_type nw_type, @@ -471,6 +619,7 @@ void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, u8 assoc_resp_len, u8 *assoc_info) { struct ieee80211_channel *chan; + struct ath6kl *ar = vif->ar; /* capinfo + listen interval */ u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); @@ -489,11 +638,11 @@ void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, * Store Beacon interval here; DTIM period will be available only once * a Beacon frame from the AP is seen. */ - ar->assoc_bss_beacon_int = beacon_intvl; - clear_bit(DTIM_PERIOD_AVAIL, &ar->flag); + vif->assoc_bss_beacon_int = beacon_intvl; + clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); if (nw_type & ADHOC_NETWORK) { - if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { + if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in ibss mode\n", __func__); return; @@ -501,39 +650,39 @@ void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, } if (nw_type & INFRA_NETWORK) { - if (ar->wdev->iftype != NL80211_IFTYPE_STATION && - ar->wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) { + if (vif->wdev.iftype != NL80211_IFTYPE_STATION && + vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in station mode\n", __func__); return; } } - chan = ieee80211_get_channel(ar->wdev->wiphy, (int) channel); + chan = ieee80211_get_channel(ar->wiphy, (int) channel); if (nw_type & ADHOC_NETWORK) { - cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); + cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); return; } - if (ath6kl_add_bss_if_needed(ar, bssid, chan, assoc_info, + if (ath6kl_add_bss_if_needed(vif, bssid, chan, assoc_info, beacon_ie_len) < 0) { ath6kl_err("could not add cfg80211 bss entry for " "connect/roamed notification\n"); return; } - if (ar->sme_state == SME_CONNECTING) { + if (vif->sme_state == SME_CONNECTING) { /* inform connect result to cfg80211 */ - ar->sme_state = SME_CONNECTED; - cfg80211_connect_result(ar->net_dev, bssid, + vif->sme_state = SME_CONNECTED; + cfg80211_connect_result(vif->ndev, bssid, assoc_req_ie, assoc_req_len, assoc_resp_ie, assoc_resp_len, WLAN_STATUS_SUCCESS, GFP_KERNEL); - } else if (ar->sme_state == SME_CONNECTED) { + } else if (vif->sme_state == SME_CONNECTED) { /* inform roam event to cfg80211 */ - cfg80211_roamed(ar->net_dev, chan, bssid, + cfg80211_roamed(vif->ndev, chan, bssid, assoc_req_ie, assoc_req_len, assoc_resp_ie, assoc_resp_len, GFP_KERNEL); } @@ -543,11 +692,12 @@ static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_code) { struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, reason_code); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { @@ -560,44 +710,46 @@ static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, return -ERESTARTSYS; } - ar->reconnect_flag = 0; - ath6kl_disconnect(ar); - memset(ar->ssid, 0, sizeof(ar->ssid)); - ar->ssid_len = 0; + vif->reconnect_flag = 0; + ath6kl_disconnect(vif); + memset(vif->ssid, 0, sizeof(vif->ssid)); + vif->ssid_len = 0; if (!test_bit(SKIP_SCAN, &ar->flag)) - memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); + memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); up(&ar->sem); - ar->sme_state = SME_DISCONNECTED; + vif->sme_state = SME_DISCONNECTED; return 0; } -void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason, +void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, u8 assoc_resp_len, u8 *assoc_info, u16 proto_reason) { - if (ar->scan_req) { - cfg80211_scan_done(ar->scan_req, true); - ar->scan_req = NULL; + struct ath6kl *ar = vif->ar; + + if (vif->scan_req) { + cfg80211_scan_done(vif->scan_req, true); + vif->scan_req = NULL; } - if (ar->nw_type & ADHOC_NETWORK) { - if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { + if (vif->nw_type & ADHOC_NETWORK) { + if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in ibss mode\n", __func__); return; } memset(bssid, 0, ETH_ALEN); - cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); + cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); return; } - if (ar->nw_type & INFRA_NETWORK) { - if (ar->wdev->iftype != NL80211_IFTYPE_STATION && - ar->wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) { + if (vif->nw_type & INFRA_NETWORK) { + if (vif->wdev.iftype != NL80211_IFTYPE_STATION && + vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in station mode\n", __func__); return; @@ -614,42 +766,44 @@ void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason, */ if (reason != DISCONNECT_CMD) { - ath6kl_wmi_disconnect_cmd(ar->wmi); + ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); return; } - clear_bit(CONNECT_PEND, &ar->flag); + clear_bit(CONNECT_PEND, &vif->flags); - if (ar->sme_state == SME_CONNECTING) { - cfg80211_connect_result(ar->net_dev, + if (vif->sme_state == SME_CONNECTING) { + cfg80211_connect_result(vif->ndev, bssid, NULL, 0, NULL, 0, WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); - } else if (ar->sme_state == SME_CONNECTED) { - cfg80211_disconnected(ar->net_dev, reason, + } else if (vif->sme_state == SME_CONNECTED) { + cfg80211_disconnected(vif->ndev, reason, NULL, 0, GFP_KERNEL); } - ar->sme_state = SME_DISCONNECTED; + vif->sme_state = SME_DISCONNECTED; } static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, struct cfg80211_scan_request *request) { struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_vif *vif = netdev_priv(ndev); s8 n_channels = 0; u16 *channels = NULL; int ret = 0; + u32 force_fg_scan = 0; - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (!ar->usr_bss_filter) { - clear_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag); + clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); ret = ath6kl_wmi_bssfilter_cmd( - ar->wmi, - (test_bit(CONNECTED, &ar->flag) ? + ar->wmi, vif->fw_vif_idx, + (test_bit(CONNECTED, &vif->flags) ? ALL_BUT_BSS_FILTER : ALL_BSS_FILTER), 0); if (ret) { ath6kl_err("couldn't set bss filtering\n"); @@ -664,14 +818,15 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, request->n_ssids = MAX_PROBED_SSID_INDEX - 1; for (i = 0; i < request->n_ssids; i++) - ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, - SPECIFIC_SSID_FLAG, + ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, + i + 1, SPECIFIC_SSID_FLAG, request->ssids[i].ssid_len, request->ssids[i].ssid); } if (request->ie) { - ret = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_PROBE_REQ, + ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, + WMI_FRAME_PROBE_REQ, request->ie, request->ie_len); if (ret) { ath6kl_err("failed to set Probe Request appie for " @@ -702,44 +857,47 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, channels[i] = request->channels[i]->center_freq; } - ret = ath6kl_wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, 0, - false, 0, 0, n_channels, channels); + if (test_bit(CONNECTED, &vif->flags)) + force_fg_scan = 1; + + ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx, WMI_LONG_SCAN, + force_fg_scan, false, 0, 0, n_channels, + channels); if (ret) ath6kl_err("wmi_startscan_cmd failed\n"); else - ar->scan_req = request; + vif->scan_req = request; kfree(channels); return ret; } -void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status) +void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) { + struct ath6kl *ar = vif->ar; int i; - ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status); + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, + aborted ? " aborted" : ""); - if (!ar->scan_req) + if (!vif->scan_req) return; - if ((status == -ECANCELED) || (status == -EBUSY)) { - cfg80211_scan_done(ar->scan_req, true); + if (aborted) goto out; - } - - cfg80211_scan_done(ar->scan_req, false); - if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) { - for (i = 0; i < ar->scan_req->n_ssids; i++) { - ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, - DISABLE_SSID_FLAG, + if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { + for (i = 0; i < vif->scan_req->n_ssids; i++) { + ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, + i + 1, DISABLE_SSID_FLAG, 0, NULL); } } out: - ar->scan_req = NULL; + cfg80211_scan_done(vif->scan_req, aborted); + vif->scan_req = NULL; } static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, @@ -748,14 +906,21 @@ static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, struct key_params *params) { struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_vif *vif = netdev_priv(ndev); struct ath6kl_key *key = NULL; u8 key_usage; u8 key_type; - int status = 0; - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; + if (params->cipher == CCKM_KRK_CIPHER_SUITE) { + if (params->key_len != WMI_KRK_LEN) + return -EINVAL; + return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, + params->key); + } + if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: key index %d out of bounds\n", __func__, @@ -763,7 +928,7 @@ static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, return -ENOENT; } - key = &ar->keys[key_index]; + key = &vif->keys[key_index]; memset(key, 0, sizeof(struct ath6kl_key)); if (pairwise) @@ -801,26 +966,26 @@ static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, return -ENOTSUPP; } - if (((ar->auth_mode == WPA_PSK_AUTH) - || (ar->auth_mode == WPA2_PSK_AUTH)) + if (((vif->auth_mode == WPA_PSK_AUTH) + || (vif->auth_mode == WPA2_PSK_AUTH)) && (key_usage & GROUP_USAGE)) - del_timer(&ar->disconnect_timer); + del_timer(&vif->disconnect_timer); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", __func__, key_index, key->key_len, key_type, key_usage, key->seq_len); - ar->def_txkey_index = key_index; + vif->def_txkey_index = key_index; - if (ar->nw_type == AP_NETWORK && !pairwise && + if (vif->nw_type == AP_NETWORK && !pairwise && (key_type == TKIP_CRYPT || key_type == AES_CRYPT) && params) { ar->ap_mode_bkey.valid = true; ar->ap_mode_bkey.key_index = key_index; ar->ap_mode_bkey.key_type = key_type; ar->ap_mode_bkey.key_len = key->key_len; memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); - if (!test_bit(CONNECTED, &ar->flag)) { + if (!test_bit(CONNECTED, &vif->flags)) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group " "key configuration until AP mode has been " "started\n"); @@ -832,8 +997,8 @@ static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, } } - if (ar->next_mode == AP_NETWORK && key_type == WEP_CRYPT && - !test_bit(CONNECTED, &ar->flag)) { + if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && + !test_bit(CONNECTED, &vif->flags)) { /* * Store the key locally so that it can be re-configured after * the AP mode has properly started @@ -841,20 +1006,18 @@ static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, */ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay WEP key configuration " "until AP mode has been started\n"); - ar->wep_key_list[key_index].key_len = key->key_len; - memcpy(ar->wep_key_list[key_index].key, key->key, key->key_len); + vif->wep_key_list[key_index].key_len = key->key_len; + memcpy(vif->wep_key_list[key_index].key, key->key, + key->key_len); return 0; } - status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, - key_type, key_usage, key->key_len, - key->seq, key->key, KEY_OP_INIT_VAL, - (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); - - if (status) - return -EIO; - - return 0; + return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, + vif->def_txkey_index, + key_type, key_usage, key->key_len, + key->seq, key->seq_len, key->key, + KEY_OP_INIT_VAL, + (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); } static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, @@ -862,10 +1025,11 @@ static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, const u8 *mac_addr) { struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_vif *vif = netdev_priv(ndev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { @@ -875,15 +1039,15 @@ static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, return -ENOENT; } - if (!ar->keys[key_index].key_len) { + if (!vif->keys[key_index].key_len) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d is empty\n", __func__, key_index); return 0; } - ar->keys[key_index].key_len = 0; + vif->keys[key_index].key_len = 0; - return ath6kl_wmi_deletekey_cmd(ar->wmi, key_index); + return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); } static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, @@ -892,13 +1056,13 @@ static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, void (*callback) (void *cookie, struct key_params *)) { - struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_vif *vif = netdev_priv(ndev); struct ath6kl_key *key = NULL; struct key_params params; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { @@ -908,7 +1072,7 @@ static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, return -ENOENT; } - key = &ar->keys[key_index]; + key = &vif->keys[key_index]; memset(¶ms, 0, sizeof(params)); params.cipher = key->cipher; params.key_len = key->key_len; @@ -927,14 +1091,14 @@ static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, bool multicast) { struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); + struct ath6kl_vif *vif = netdev_priv(ndev); struct ath6kl_key *key = NULL; - int status = 0; u8 key_usage; enum crypto_type key_type = NONE_CRYPT; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { @@ -944,43 +1108,41 @@ static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, return -ENOENT; } - if (!ar->keys[key_index].key_len) { + if (!vif->keys[key_index].key_len) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", __func__, key_index); return -EINVAL; } - ar->def_txkey_index = key_index; - key = &ar->keys[ar->def_txkey_index]; + vif->def_txkey_index = key_index; + key = &vif->keys[vif->def_txkey_index]; key_usage = GROUP_USAGE; - if (ar->prwise_crypto == WEP_CRYPT) + if (vif->prwise_crypto == WEP_CRYPT) key_usage |= TX_USAGE; if (unicast) - key_type = ar->prwise_crypto; + key_type = vif->prwise_crypto; if (multicast) - key_type = ar->grp_crypto; + key_type = vif->grp_crypto; - if (ar->next_mode == AP_NETWORK && !test_bit(CONNECTED, &ar->flag)) + if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) return 0; /* Delay until AP mode has been started */ - status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, - key_type, key_usage, - key->key_len, key->seq, key->key, - KEY_OP_INIT_VAL, NULL, - SYNC_BOTH_WMIFLAG); - if (status) - return -EIO; - - return 0; + return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, + vif->def_txkey_index, + key_type, key_usage, + key->key_len, key->seq, key->seq_len, + key->key, + KEY_OP_INIT_VAL, NULL, + SYNC_BOTH_WMIFLAG); } -void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid, +void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); - cfg80211_michael_mic_failure(ar->net_dev, ar->bssid, + cfg80211_michael_mic_failure(vif->ndev, vif->bssid, (ismcast ? NL80211_KEYTYPE_GROUP : NL80211_KEYTYPE_PAIRWISE), keyid, NULL, GFP_KERNEL); @@ -989,12 +1151,17 @@ void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid, static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) { struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); + struct ath6kl_vif *vif; int ret; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, changed); - if (!ath6kl_cfg80211_ready(ar)) + vif = ath6kl_vif_first(ar); + if (!vif) + return -EIO; + + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (changed & WIPHY_PARAM_RTS_THRESHOLD) { @@ -1017,12 +1184,17 @@ static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, int dbm) { struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); + struct ath6kl_vif *vif; u8 ath6kl_dbm; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, type, dbm); - if (!ath6kl_cfg80211_ready(ar)) + vif = ath6kl_vif_first(ar); + if (!vif) + return -EIO; + + if (!ath6kl_cfg80211_ready(vif)) return -EIO; switch (type) { @@ -1037,7 +1209,7 @@ static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, return -EOPNOTSUPP; } - ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm); + ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, ath6kl_dbm); return 0; } @@ -1045,14 +1217,19 @@ static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) { struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); + struct ath6kl_vif *vif; - if (!ath6kl_cfg80211_ready(ar)) + vif = ath6kl_vif_first(ar); + if (!vif) return -EIO; - if (test_bit(CONNECTED, &ar->flag)) { + if (!ath6kl_cfg80211_ready(vif)) + return -EIO; + + if (test_bit(CONNECTED, &vif->flags)) { ar->tx_pwr = 0; - if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi) != 0) { + if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); return -EIO; } @@ -1076,11 +1253,12 @@ static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, { struct ath6kl *ar = ath6kl_priv(dev); struct wmi_power_mode_cmd mode; + struct ath6kl_vif *vif = netdev_priv(dev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", __func__, pmgmt, timeout); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (pmgmt) { @@ -1091,7 +1269,8 @@ static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, mode.pwr_mode = MAX_PERF_POWER; } - if (ath6kl_wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) { + if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, + mode.pwr_mode) != 0) { ath6kl_err("wmi_powermode_cmd failed\n"); return -EIO; } @@ -1099,41 +1278,86 @@ static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, return 0; } +static struct net_device *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, + char *name, + enum nl80211_iftype type, + u32 *flags, + struct vif_params *params) +{ + struct ath6kl *ar = wiphy_priv(wiphy); + struct net_device *ndev; + u8 if_idx, nw_type; + + if (ar->num_vif == MAX_NUM_VIF) { + ath6kl_err("Reached maximum number of supported vif\n"); + return ERR_PTR(-EINVAL); + } + + if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { + ath6kl_err("Not a supported interface type\n"); + return ERR_PTR(-EINVAL); + } + + ndev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); + if (!ndev) + return ERR_PTR(-ENOMEM); + + ar->num_vif++; + + return ndev; +} + +static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, + struct net_device *ndev) +{ + struct ath6kl *ar = wiphy_priv(wiphy); + struct ath6kl_vif *vif = netdev_priv(ndev); + + spin_lock_bh(&ar->list_lock); + list_del(&vif->list); + spin_unlock_bh(&ar->list_lock); + + ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag)); + + ath6kl_deinit_if_data(vif); + + return 0; +} + static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { - struct ath6kl *ar = ath6kl_priv(ndev); - struct wireless_dev *wdev = ar->wdev; + struct ath6kl_vif *vif = netdev_priv(ndev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; switch (type) { case NL80211_IFTYPE_STATION: - ar->next_mode = INFRA_NETWORK; + vif->next_mode = INFRA_NETWORK; break; case NL80211_IFTYPE_ADHOC: - ar->next_mode = ADHOC_NETWORK; + vif->next_mode = ADHOC_NETWORK; break; case NL80211_IFTYPE_AP: - ar->next_mode = AP_NETWORK; + vif->next_mode = AP_NETWORK; break; case NL80211_IFTYPE_P2P_CLIENT: - ar->next_mode = INFRA_NETWORK; + vif->next_mode = INFRA_NETWORK; break; case NL80211_IFTYPE_P2P_GO: - ar->next_mode = AP_NETWORK; + vif->next_mode = AP_NETWORK; break; default: ath6kl_err("invalid interface type %u\n", type); return -EOPNOTSUPP; } - wdev->iftype = type; + vif->wdev.iftype = type; return 0; } @@ -1143,16 +1367,17 @@ static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, struct cfg80211_ibss_params *ibss_param) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); int status; - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; - ar->ssid_len = ibss_param->ssid_len; - memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len); + vif->ssid_len = ibss_param->ssid_len; + memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); if (ibss_param->channel) - ar->ch_hint = ibss_param->channel->center_freq; + vif->ch_hint = ibss_param->channel->center_freq; if (ibss_param->channel_fixed) { /* @@ -1164,44 +1389,45 @@ static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, return -EOPNOTSUPP; } - memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); + memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) - memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid)); + memcpy(vif->req_bssid, ibss_param->bssid, + sizeof(vif->req_bssid)); - ath6kl_set_wpa_version(ar, 0); + ath6kl_set_wpa_version(vif, 0); - status = ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM); + status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); if (status) return status; if (ibss_param->privacy) { - ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true); - ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false); + ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); + ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); } else { - ath6kl_set_cipher(ar, 0, true); - ath6kl_set_cipher(ar, 0, false); + ath6kl_set_cipher(vif, 0, true); + ath6kl_set_cipher(vif, 0, false); } - ar->nw_type = ar->next_mode; + vif->nw_type = vif->next_mode; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: connect called with authmode %d dot11 auth %d" " PW crypto %d PW crypto len %d GRP crypto %d" " GRP crypto len %d channel hint %u\n", __func__, - ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, - ar->prwise_crypto_len, ar->grp_crypto, - ar->grp_crypto_len, ar->ch_hint); - - status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, - ar->dot11_auth_mode, ar->auth_mode, - ar->prwise_crypto, - ar->prwise_crypto_len, - ar->grp_crypto, ar->grp_crypto_len, - ar->ssid_len, ar->ssid, - ar->req_bssid, ar->ch_hint, + vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, + vif->prwise_crypto_len, vif->grp_crypto, + vif->grp_crypto_len, vif->ch_hint); + + status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, + vif->dot11_auth_mode, vif->auth_mode, + vif->prwise_crypto, + vif->prwise_crypto_len, + vif->grp_crypto, vif->grp_crypto_len, + vif->ssid_len, vif->ssid, + vif->req_bssid, vif->ch_hint, ar->connect_ctrl_flags); - set_bit(CONNECT_PEND, &ar->flag); + set_bit(CONNECT_PEND, &vif->flags); return 0; } @@ -1209,14 +1435,14 @@ static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) { - struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; - ath6kl_disconnect(ar); - memset(ar->ssid, 0, sizeof(ar->ssid)); - ar->ssid_len = 0; + ath6kl_disconnect(vif); + memset(vif->ssid, 0, sizeof(vif->ssid)); + vif->ssid_len = 0; return 0; } @@ -1226,6 +1452,7 @@ static const u32 cipher_suites[] = { WLAN_CIPHER_SUITE_WEP104, WLAN_CIPHER_SUITE_TKIP, WLAN_CIPHER_SUITE_CCMP, + CCKM_KRK_CIPHER_SUITE, }; static bool is_rate_legacy(s32 rate) @@ -1293,21 +1520,22 @@ static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, u8 *mac, struct station_info *sinfo) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); long left; bool sgi; s32 rate; int ret; u8 mcs; - if (memcmp(mac, ar->bssid, ETH_ALEN) != 0) + if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) return -ENOENT; if (down_interruptible(&ar->sem)) return -EBUSY; - set_bit(STATS_UPDATE_PEND, &ar->flag); + set_bit(STATS_UPDATE_PEND, &vif->flags); - ret = ath6kl_wmi_get_stats_cmd(ar->wmi); + ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); if (ret != 0) { up(&ar->sem); @@ -1316,7 +1544,7 @@ static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, left = wait_event_interruptible_timeout(ar->event_wq, !test_bit(STATS_UPDATE_PEND, - &ar->flag), + &vif->flags), WMI_TIMEOUT); up(&ar->sem); @@ -1326,24 +1554,24 @@ static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, else if (left < 0) return left; - if (ar->target_stats.rx_byte) { - sinfo->rx_bytes = ar->target_stats.rx_byte; + if (vif->target_stats.rx_byte) { + sinfo->rx_bytes = vif->target_stats.rx_byte; sinfo->filled |= STATION_INFO_RX_BYTES; - sinfo->rx_packets = ar->target_stats.rx_pkt; + sinfo->rx_packets = vif->target_stats.rx_pkt; sinfo->filled |= STATION_INFO_RX_PACKETS; } - if (ar->target_stats.tx_byte) { - sinfo->tx_bytes = ar->target_stats.tx_byte; + if (vif->target_stats.tx_byte) { + sinfo->tx_bytes = vif->target_stats.tx_byte; sinfo->filled |= STATION_INFO_TX_BYTES; - sinfo->tx_packets = ar->target_stats.tx_pkt; + sinfo->tx_packets = vif->target_stats.tx_pkt; sinfo->filled |= STATION_INFO_TX_PACKETS; } - sinfo->signal = ar->target_stats.cs_rssi; + sinfo->signal = vif->target_stats.cs_rssi; sinfo->filled |= STATION_INFO_SIGNAL; - rate = ar->target_stats.tx_ucast_rate; + rate = vif->target_stats.tx_ucast_rate; if (is_rate_legacy(rate)) { sinfo->txrate.legacy = rate / 100; @@ -1375,13 +1603,13 @@ static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, sinfo->filled |= STATION_INFO_TX_BITRATE; - if (test_bit(CONNECTED, &ar->flag) && - test_bit(DTIM_PERIOD_AVAIL, &ar->flag) && - ar->nw_type == INFRA_NETWORK) { + if (test_bit(CONNECTED, &vif->flags) && + test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && + vif->nw_type == INFRA_NETWORK) { sinfo->filled |= STATION_INFO_BSS_PARAM; sinfo->bss_param.flags = 0; - sinfo->bss_param.dtim_period = ar->assoc_bss_dtim_period; - sinfo->bss_param.beacon_interval = ar->assoc_bss_beacon_int; + sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; + sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; } return 0; @@ -1391,7 +1619,9 @@ static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, struct cfg80211_pmksa *pmksa) { struct ath6kl *ar = ath6kl_priv(netdev); - return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, + struct ath6kl_vif *vif = netdev_priv(netdev); + + return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, pmksa->pmkid, true); } @@ -1399,25 +1629,292 @@ static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, struct cfg80211_pmksa *pmksa) { struct ath6kl *ar = ath6kl_priv(netdev); - return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, + struct ath6kl_vif *vif = netdev_priv(netdev); + + return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, pmksa->pmkid, false); } static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) { struct ath6kl *ar = ath6kl_priv(netdev); - if (test_bit(CONNECTED, &ar->flag)) - return ath6kl_wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false); + struct ath6kl_vif *vif = netdev_priv(netdev); + + if (test_bit(CONNECTED, &vif->flags)) + return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, + vif->bssid, NULL, false); + return 0; +} + +static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) +{ + struct ath6kl_vif *vif; + int ret, pos, left; + u32 filter = 0; + u16 i; + u8 mask[WOW_MASK_SIZE]; + + vif = ath6kl_vif_first(ar); + if (!vif) + return -EIO; + + if (!ath6kl_cfg80211_ready(vif)) + return -EIO; + + if (!test_bit(CONNECTED, &vif->flags)) + return -EINVAL; + + /* Clear existing WOW patterns */ + for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) + ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, + WOW_LIST_ID, i); + /* Configure new WOW patterns */ + for (i = 0; i < wow->n_patterns; i++) { + + /* + * Convert given nl80211 specific mask value to equivalent + * driver specific mask value and send it to the chip along + * with patterns. For example, If the mask value defined in + * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), + * then equivalent driver specific mask value is + * "0xFF 0x00 0xFF 0x00". + */ + memset(&mask, 0, sizeof(mask)); + for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { + if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) + mask[pos] = 0xFF; + } + /* + * Note: Pattern's offset is not passed as part of wowlan + * parameter from CFG layer. So it's always passed as ZERO + * to the firmware. It means, given WOW patterns are always + * matched from the first byte of received pkt in the firmware. + */ + ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, + vif->fw_vif_idx, WOW_LIST_ID, + wow->patterns[i].pattern_len, + 0 /* pattern offset */, + wow->patterns[i].pattern, mask); + if (ret) + return ret; + } + + if (wow->disconnect) + filter |= WOW_FILTER_OPTION_NWK_DISASSOC; + + if (wow->magic_pkt) + filter |= WOW_FILTER_OPTION_MAGIC_PACKET; + + if (wow->gtk_rekey_failure) + filter |= WOW_FILTER_OPTION_GTK_ERROR; + + if (wow->eap_identity_req) + filter |= WOW_FILTER_OPTION_EAP_REQ; + + if (wow->four_way_handshake) + filter |= WOW_FILTER_OPTION_8021X_4WAYHS; + + ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, + ATH6KL_WOW_MODE_ENABLE, + filter, + WOW_HOST_REQ_DELAY); + if (ret) + return ret; + + ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, + ATH6KL_HOST_MODE_ASLEEP); + if (ret) + return ret; + + if (ar->tx_pending[ar->ctrl_ep]) { + left = wait_event_interruptible_timeout(ar->event_wq, + ar->tx_pending[ar->ctrl_ep] == 0, WMI_TIMEOUT); + if (left == 0) { + ath6kl_warn("clear wmi ctrl data timeout\n"); + ret = -ETIMEDOUT; + } else if (left < 0) { + ath6kl_warn("clear wmi ctrl data failed: %d\n", left); + ret = left; + } + } + + return ret; +} + +static int ath6kl_wow_resume(struct ath6kl *ar) +{ + struct ath6kl_vif *vif; + int ret; + + vif = ath6kl_vif_first(ar); + if (!vif) + return -EIO; + + ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, + ATH6KL_HOST_MODE_AWAKE); + return ret; +} + +int ath6kl_cfg80211_suspend(struct ath6kl *ar, + enum ath6kl_cfg_suspend_mode mode, + struct cfg80211_wowlan *wow) +{ + int ret; + + switch (mode) { + case ATH6KL_CFG_SUSPEND_WOW: + + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); + + /* Flush all non control pkts in TX path */ + ath6kl_tx_data_cleanup(ar); + + ret = ath6kl_wow_suspend(ar, wow); + if (ret) { + ath6kl_err("wow suspend failed: %d\n", ret); + return ret; + } + ar->state = ATH6KL_STATE_WOW; + break; + + case ATH6KL_CFG_SUSPEND_DEEPSLEEP: + + ath6kl_cfg80211_stop(ar); + + /* save the current power mode before enabling power save */ + ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; + + ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); + if (ret) { + ath6kl_warn("wmi powermode command failed during suspend: %d\n", + ret); + } + + ar->state = ATH6KL_STATE_DEEPSLEEP; + + break; + + case ATH6KL_CFG_SUSPEND_CUTPOWER: + + ath6kl_cfg80211_stop(ar); + + if (ar->state == ATH6KL_STATE_OFF) { + ath6kl_dbg(ATH6KL_DBG_SUSPEND, + "suspend hw off, no action for cutpower\n"); + break; + } + + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); + + ret = ath6kl_init_hw_stop(ar); + if (ret) { + ath6kl_warn("failed to stop hw during suspend: %d\n", + ret); + } + + ar->state = ATH6KL_STATE_CUTPOWER; + + break; + + default: + break; + } + + return 0; +} + +int ath6kl_cfg80211_resume(struct ath6kl *ar) +{ + int ret; + + switch (ar->state) { + case ATH6KL_STATE_WOW: + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); + + ret = ath6kl_wow_resume(ar); + if (ret) { + ath6kl_warn("wow mode resume failed: %d\n", ret); + return ret; + } + + ar->state = ATH6KL_STATE_ON; + break; + + case ATH6KL_STATE_DEEPSLEEP: + if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { + ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, + ar->wmi->saved_pwr_mode); + if (ret) { + ath6kl_warn("wmi powermode command failed during resume: %d\n", + ret); + } + } + + ar->state = ATH6KL_STATE_ON; + + break; + + case ATH6KL_STATE_CUTPOWER: + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); + + ret = ath6kl_init_hw_start(ar); + if (ret) { + ath6kl_warn("Failed to boot hw in resume: %d\n", ret); + return ret; + } + break; + + default: + break; + } + return 0; } #ifdef CONFIG_PM -static int ar6k_cfg80211_suspend(struct wiphy *wiphy, + +/* hif layer decides what suspend mode to use */ +static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wow) { struct ath6kl *ar = wiphy_priv(wiphy); - return ath6kl_hif_suspend(ar); + return ath6kl_hif_suspend(ar, wow); +} + +static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) +{ + struct ath6kl *ar = wiphy_priv(wiphy); + + return ath6kl_hif_resume(ar); +} + +/* + * FIXME: WOW suspend mode is selected if the host sdio controller supports + * both sdio irq wake up and keep power. The target pulls sdio data line to + * wake up the host when WOW pattern matches. This causes sdio irq handler + * is being called in the host side which internally hits ath6kl's RX path. + * + * Since sdio interrupt is not disabled, RX path executes even before + * the host executes the actual resume operation from PM module. + * + * In the current scenario, WOW resume should happen before start processing + * any data from the target. So It's required to perform WOW resume in RX path. + * Ideally we should perform WOW resume only in the actual platform + * resume path. This area needs bit rework to avoid WOW resume in RX path. + * + * ath6kl_check_wow_status() is called from ath6kl_rx(). + */ +void ath6kl_check_wow_status(struct ath6kl *ar) +{ + if (ar->state == ATH6KL_STATE_WOW) + ath6kl_cfg80211_resume(ar); +} + +#else + +void ath6kl_check_wow_status(struct ath6kl *ar) +{ } #endif @@ -1425,14 +1922,14 @@ static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type) { - struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n", __func__, chan->center_freq, chan->hw_value); - ar->next_chan = chan->center_freq; + vif->next_chan = chan->center_freq; return 0; } @@ -1444,9 +1941,10 @@ static bool ath6kl_is_p2p_ie(const u8 *pos) pos[4] == 0x9a && pos[5] == 0x09; } -static int ath6kl_set_ap_probe_resp_ies(struct ath6kl *ar, const u8 *ies, - size_t ies_len) +static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, + const u8 *ies, size_t ies_len) { + struct ath6kl *ar = vif->ar; const u8 *pos; u8 *buf = NULL; size_t len = 0; @@ -1473,8 +1971,8 @@ static int ath6kl_set_ap_probe_resp_ies(struct ath6kl *ar, const u8 *ies, } } - ret = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_PROBE_RESP, - buf, len); + ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, + WMI_FRAME_PROBE_RESP, buf, len); kfree(buf); return ret; } @@ -1483,6 +1981,7 @@ static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, struct beacon_parameters *info, bool add) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); struct ieee80211_mgmt *mgmt; u8 *ies; int ies_len; @@ -1492,27 +1991,29 @@ static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: add=%d\n", __func__, add); - if (!ath6kl_cfg80211_ready(ar)) + if (!ath6kl_cfg80211_ready(vif)) return -EIO; - if (ar->next_mode != AP_NETWORK) + if (vif->next_mode != AP_NETWORK) return -EOPNOTSUPP; if (info->beacon_ies) { - res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_BEACON, + res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, + WMI_FRAME_BEACON, info->beacon_ies, info->beacon_ies_len); if (res) return res; } if (info->proberesp_ies) { - res = ath6kl_set_ap_probe_resp_ies(ar, info->proberesp_ies, + res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, info->proberesp_ies_len); if (res) return res; } if (info->assocresp_ies) { - res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_ASSOC_RESP, + res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, + WMI_FRAME_ASSOC_RESP, info->assocresp_ies, info->assocresp_ies_len); if (res) @@ -1539,12 +2040,12 @@ static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, if (info->ssid == NULL) return -EINVAL; - memcpy(ar->ssid, info->ssid, info->ssid_len); - ar->ssid_len = info->ssid_len; + memcpy(vif->ssid, info->ssid, info->ssid_len); + vif->ssid_len = info->ssid_len; if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) return -EOPNOTSUPP; /* TODO */ - ar->dot11_auth_mode = OPEN_AUTH; + vif->dot11_auth_mode = OPEN_AUTH; memset(&p, 0, sizeof(p)); @@ -1566,7 +2067,7 @@ static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, } if (p.auth_mode == 0) p.auth_mode = NONE_AUTH; - ar->auth_mode = p.auth_mode; + vif->auth_mode = p.auth_mode; for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { switch (info->crypto.ciphers_pairwise[i]) { @@ -1584,9 +2085,9 @@ static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, } if (p.prwise_crypto_type == 0) { p.prwise_crypto_type = NONE_CRYPT; - ath6kl_set_cipher(ar, 0, true); + ath6kl_set_cipher(vif, 0, true); } else if (info->crypto.n_ciphers_pairwise == 1) - ath6kl_set_cipher(ar, info->crypto.ciphers_pairwise[0], true); + ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); switch (info->crypto.cipher_group) { case WLAN_CIPHER_SUITE_WEP40: @@ -1603,17 +2104,17 @@ static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, p.grp_crypto_type = NONE_CRYPT; break; } - ath6kl_set_cipher(ar, info->crypto.cipher_group, false); + ath6kl_set_cipher(vif, info->crypto.cipher_group, false); p.nw_type = AP_NETWORK; - ar->nw_type = ar->next_mode; + vif->nw_type = vif->next_mode; - p.ssid_len = ar->ssid_len; - memcpy(p.ssid, ar->ssid, ar->ssid_len); - p.dot11_auth_mode = ar->dot11_auth_mode; - p.ch = cpu_to_le16(ar->next_chan); + p.ssid_len = vif->ssid_len; + memcpy(p.ssid, vif->ssid, vif->ssid_len); + p.dot11_auth_mode = vif->dot11_auth_mode; + p.ch = cpu_to_le16(vif->next_chan); - res = ath6kl_wmi_ap_profile_commit(ar->wmi, &p); + res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); if (res < 0) return res; @@ -1635,14 +2136,15 @@ static int ath6kl_set_beacon(struct wiphy *wiphy, struct net_device *dev, static int ath6kl_del_beacon(struct wiphy *wiphy, struct net_device *dev) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); - if (ar->nw_type != AP_NETWORK) + if (vif->nw_type != AP_NETWORK) return -EOPNOTSUPP; - if (!test_bit(CONNECTED, &ar->flag)) + if (!test_bit(CONNECTED, &vif->flags)) return -ENOTCONN; - ath6kl_wmi_disconnect_cmd(ar->wmi); - clear_bit(CONNECTED, &ar->flag); + ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); + clear_bit(CONNECTED, &vif->flags); return 0; } @@ -1651,8 +2153,9 @@ static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, u8 *mac, struct station_parameters *params) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); - if (ar->nw_type != AP_NETWORK) + if (vif->nw_type != AP_NETWORK) return -EOPNOTSUPP; /* Use this only for authorizing/unauthorizing a station */ @@ -1660,10 +2163,10 @@ static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, return -EOPNOTSUPP; if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) - return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_AUTHORIZE, - mac, 0); - return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_UNAUTHORIZE, mac, - 0); + return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, + WMI_AP_MLME_AUTHORIZE, mac, 0); + return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, + WMI_AP_MLME_UNAUTHORIZE, mac, 0); } static int ath6kl_remain_on_channel(struct wiphy *wiphy, @@ -1674,13 +2177,20 @@ static int ath6kl_remain_on_channel(struct wiphy *wiphy, u64 *cookie) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); + u32 id; /* TODO: if already pending or ongoing remain-on-channel, * return -EBUSY */ - *cookie = 1; /* only a single pending request is supported */ + id = ++vif->last_roc_id; + if (id == 0) { + /* Do not use 0 as the cookie value */ + id = ++vif->last_roc_id; + } + *cookie = id; - return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, chan->center_freq, - duration); + return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, + chan->center_freq, duration); } static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, @@ -1688,16 +2198,20 @@ static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, u64 cookie) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); - if (cookie != 1) + if (cookie != vif->last_roc_id) return -ENOENT; + vif->last_cancel_roc_id = cookie; - return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi); + return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); } -static int ath6kl_send_go_probe_resp(struct ath6kl *ar, const u8 *buf, - size_t len, unsigned int freq) +static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, + const u8 *buf, size_t len, + unsigned int freq) { + struct ath6kl *ar = vif->ar; const u8 *pos; u8 *p2p; int p2p_len; @@ -1724,8 +2238,8 @@ static int ath6kl_send_go_probe_resp(struct ath6kl *ar, const u8 *buf, pos += 2 + pos[1]; } - ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, freq, mgmt->da, - p2p, p2p_len); + ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, + mgmt->da, p2p, p2p_len); kfree(p2p); return ret; } @@ -1738,33 +2252,35 @@ static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, bool dont_wait_for_ack, u64 *cookie) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); u32 id; const struct ieee80211_mgmt *mgmt; mgmt = (const struct ieee80211_mgmt *) buf; if (buf + len >= mgmt->u.probe_resp.variable && - ar->nw_type == AP_NETWORK && test_bit(CONNECTED, &ar->flag) && + vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && ieee80211_is_probe_resp(mgmt->frame_control)) { /* * Send Probe Response frame in AP mode using a separate WMI * command to allow the target to fill in the generic IEs. */ *cookie = 0; /* TX status not supported */ - return ath6kl_send_go_probe_resp(ar, buf, len, + return ath6kl_send_go_probe_resp(vif, buf, len, chan->center_freq); } - id = ar->send_action_id++; + id = vif->send_action_id++; if (id == 0) { /* * 0 is a reserved value in the WMI command and shall not be * used for the command. */ - id = ar->send_action_id++; + id = vif->send_action_id++; } *cookie = id; - return ath6kl_wmi_send_action_cmd(ar->wmi, id, chan->center_freq, wait, + return ath6kl_wmi_send_action_cmd(ar->wmi, vif->fw_vif_idx, id, + chan->center_freq, wait, buf, len); } @@ -1772,7 +2288,7 @@ static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, struct net_device *dev, u16 frame_type, bool reg) { - struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", __func__, frame_type, reg); @@ -1782,7 +2298,7 @@ static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we * hardcode target to report Probe Request frames all the time. */ - ar->probe_req_report = reg; + vif->probe_req_report = reg; } } @@ -1809,6 +2325,8 @@ ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { }; static struct cfg80211_ops ath6kl_cfg80211_ops = { + .add_virtual_intf = ath6kl_cfg80211_add_iface, + .del_virtual_intf = ath6kl_cfg80211_del_iface, .change_virtual_intf = ath6kl_cfg80211_change_iface, .scan = ath6kl_cfg80211_scan, .connect = ath6kl_cfg80211_connect, @@ -1829,7 +2347,8 @@ static struct cfg80211_ops ath6kl_cfg80211_ops = { .flush_pmksa = ath6kl_flush_pmksa, CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) #ifdef CONFIG_PM - .suspend = ar6k_cfg80211_suspend, + .suspend = __ath6kl_cfg80211_suspend, + .resume = __ath6kl_cfg80211_resume, #endif .set_channel = ath6kl_set_channel, .add_beacon = ath6kl_add_beacon, @@ -1842,76 +2361,269 @@ static struct cfg80211_ops ath6kl_cfg80211_ops = { .mgmt_frame_register = ath6kl_mgmt_frame_register, }; -struct wireless_dev *ath6kl_cfg80211_init(struct device *dev) +void ath6kl_cfg80211_stop(struct ath6kl *ar) { - int ret = 0; - struct wireless_dev *wdev; - struct ath6kl *ar; + struct ath6kl_vif *vif; - wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); - if (!wdev) { - ath6kl_err("couldn't allocate wireless device\n"); - return NULL; + /* FIXME: for multi vif */ + vif = ath6kl_vif_first(ar); + if (!vif) { + /* save the current power mode before enabling power save */ + ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; + + if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) + ath6kl_warn("ath6kl_deep_sleep_enable: " + "wmi_powermode_cmd failed\n"); + return; } + switch (vif->sme_state) { + case SME_CONNECTING: + cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, + NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_KERNEL); + break; + case SME_CONNECTED: + default: + /* + * FIXME: oddly enough smeState is in DISCONNECTED during + * suspend, why? Need to send disconnected event in that + * state. + */ + cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); + break; + } + + if (test_bit(CONNECTED, &vif->flags) || + test_bit(CONNECT_PEND, &vif->flags)) + ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); + + vif->sme_state = SME_DISCONNECTED; + clear_bit(CONNECTED, &vif->flags); + clear_bit(CONNECT_PEND, &vif->flags); + + /* disable scanning */ + if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, 0, 0, + 0, 0, 0, 0, 0, 0, 0) != 0) + printk(KERN_WARNING "ath6kl: failed to disable scan " + "during suspend\n"); + + ath6kl_cfg80211_scan_complete_event(vif, true); +} + +struct ath6kl *ath6kl_core_alloc(struct device *dev) +{ + struct ath6kl *ar; + struct wiphy *wiphy; + u8 ctr; + /* create a new wiphy for use with cfg80211 */ - wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); - if (!wdev->wiphy) { + wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); + + if (!wiphy) { ath6kl_err("couldn't allocate wiphy device\n"); - kfree(wdev); return NULL; } - ar = wiphy_priv(wdev->wiphy); - ar->p2p = !!ath6kl_p2p; + ar = wiphy_priv(wiphy); + if (!multi_norm_if_support) + ar->p2p = !!ath6kl_p2p; + ar->wiphy = wiphy; + ar->dev = dev; + + if (multi_norm_if_support) + ar->max_norm_iface = 2; + else + ar->max_norm_iface = 1; + + /* FIXME: Remove this once the multivif support is enabled */ + ar->max_norm_iface = 1; + + spin_lock_init(&ar->lock); + spin_lock_init(&ar->mcastpsq_lock); + spin_lock_init(&ar->list_lock); - wdev->wiphy->mgmt_stypes = ath6kl_mgmt_stypes; + init_waitqueue_head(&ar->event_wq); + sema_init(&ar->sem, 1); - wdev->wiphy->max_remain_on_channel_duration = 5000; + INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); + INIT_LIST_HEAD(&ar->vif_list); + + clear_bit(WMI_ENABLED, &ar->flag); + clear_bit(SKIP_SCAN, &ar->flag); + clear_bit(DESTROY_IN_PROGRESS, &ar->flag); + + ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL; + ar->listen_intvl_b = 0; + ar->tx_pwr = 0; + + ar->intra_bss = 1; + memset(&ar->sc_params, 0, sizeof(ar->sc_params)); + ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT; + ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS; + ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; + + ar->state = ATH6KL_STATE_OFF; + + memset((u8 *)ar->sta_list, 0, + AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); + + /* Init the PS queues */ + for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { + spin_lock_init(&ar->sta_list[ctr].psq_lock); + skb_queue_head_init(&ar->sta_list[ctr].psq); + } + + skb_queue_head_init(&ar->mcastpsq); + + memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); + + return ar; +} + +int ath6kl_register_ieee80211_hw(struct ath6kl *ar) +{ + struct wiphy *wiphy = ar->wiphy; + int ret; + + wiphy->mgmt_stypes = ath6kl_mgmt_stypes; + + wiphy->max_remain_on_channel_duration = 5000; /* set device pointer for wiphy */ - set_wiphy_dev(wdev->wiphy, dev); + set_wiphy_dev(wiphy, ar->dev); - wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP); + wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_AP); if (ar->p2p) { - wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | - BIT(NL80211_IFTYPE_P2P_CLIENT); + wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | + BIT(NL80211_IFTYPE_P2P_CLIENT); } - /* max num of ssids that can be probed during scanning */ - wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; - wdev->wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ - wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; - wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; - wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; - - wdev->wiphy->cipher_suites = cipher_suites; - wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); - ret = wiphy_register(wdev->wiphy); + /* max num of ssids that can be probed during scanning */ + wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; + wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ + wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; + wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + + wiphy->cipher_suites = cipher_suites; + wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); + + wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | + WIPHY_WOWLAN_DISCONNECT | + WIPHY_WOWLAN_GTK_REKEY_FAILURE | + WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | + WIPHY_WOWLAN_EAP_IDENTITY_REQ | + WIPHY_WOWLAN_4WAY_HANDSHAKE; + wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST; + wiphy->wowlan.pattern_min_len = 1; + wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE; + + ret = wiphy_register(wiphy); if (ret < 0) { ath6kl_err("couldn't register wiphy device\n"); - wiphy_free(wdev->wiphy); - kfree(wdev); - return NULL; + return ret; } - return wdev; + return 0; } -void ath6kl_cfg80211_deinit(struct ath6kl *ar) +static int ath6kl_init_if_data(struct ath6kl_vif *vif) { - struct wireless_dev *wdev = ar->wdev; - - if (ar->scan_req) { - cfg80211_scan_done(ar->scan_req, true); - ar->scan_req = NULL; + vif->aggr_cntxt = aggr_init(vif->ndev); + if (!vif->aggr_cntxt) { + ath6kl_err("failed to initialize aggr\n"); + return -ENOMEM; } - if (!wdev) - return; + setup_timer(&vif->disconnect_timer, disconnect_timer_handler, + (unsigned long) vif->ndev); + set_bit(WMM_ENABLED, &vif->flags); + spin_lock_init(&vif->if_lock); + + return 0; +} + +void ath6kl_deinit_if_data(struct ath6kl_vif *vif) +{ + struct ath6kl *ar = vif->ar; + + aggr_module_destroy(vif->aggr_cntxt); + + ar->avail_idx_map |= BIT(vif->fw_vif_idx); - wiphy_unregister(wdev->wiphy); - wiphy_free(wdev->wiphy); - kfree(wdev); + if (vif->nw_type == ADHOC_NETWORK) + ar->ibss_if_active = false; + + unregister_netdevice(vif->ndev); + + ar->num_vif--; +} + +struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name, + enum nl80211_iftype type, u8 fw_vif_idx, + u8 nw_type) +{ + struct net_device *ndev; + struct ath6kl_vif *vif; + + ndev = alloc_netdev(sizeof(*vif), name, ether_setup); + if (!ndev) + return NULL; + + vif = netdev_priv(ndev); + ndev->ieee80211_ptr = &vif->wdev; + vif->wdev.wiphy = ar->wiphy; + vif->ar = ar; + vif->ndev = ndev; + SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); + vif->wdev.netdev = ndev; + vif->wdev.iftype = type; + vif->fw_vif_idx = fw_vif_idx; + vif->nw_type = vif->next_mode = nw_type; + + memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); + if (fw_vif_idx != 0) + ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | + 0x2; + + init_netdev(ndev); + + ath6kl_init_control_info(vif); + + /* TODO: Pass interface specific pointer instead of ar */ + if (ath6kl_init_if_data(vif)) + goto err; + + if (register_netdevice(ndev)) + goto err; + + ar->avail_idx_map &= ~BIT(fw_vif_idx); + vif->sme_state = SME_DISCONNECTED; + set_bit(WLAN_ENABLED, &vif->flags); + ar->wlan_pwr_state = WLAN_POWER_STATE_ON; + set_bit(NETDEV_REGISTERED, &vif->flags); + + if (type == NL80211_IFTYPE_ADHOC) + ar->ibss_if_active = true; + + spin_lock_bh(&ar->list_lock); + list_add_tail(&vif->list, &ar->vif_list); + spin_unlock_bh(&ar->list_lock); + + return ndev; + +err: + aggr_module_destroy(vif->aggr_cntxt); + free_netdev(ndev); + return NULL; +} + +void ath6kl_deinit_ieee80211_hw(struct ath6kl *ar) +{ + wiphy_unregister(ar->wiphy); + wiphy_free(ar->wiphy); } diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.h b/drivers/net/wireless/ath/ath6kl/cfg80211.h index a84adc249c61..59fa9d859def 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.h +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.h @@ -17,23 +17,41 @@ #ifndef ATH6KL_CFG80211_H #define ATH6KL_CFG80211_H -struct wireless_dev *ath6kl_cfg80211_init(struct device *dev); -void ath6kl_cfg80211_deinit(struct ath6kl *ar); +enum ath6kl_cfg_suspend_mode { + ATH6KL_CFG_SUSPEND_DEEPSLEEP, + ATH6KL_CFG_SUSPEND_CUTPOWER, + ATH6KL_CFG_SUSPEND_WOW +}; -void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status); +struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name, + enum nl80211_iftype type, + u8 fw_vif_idx, u8 nw_type); +int ath6kl_register_ieee80211_hw(struct ath6kl *ar); +struct ath6kl *ath6kl_core_alloc(struct device *dev); +void ath6kl_deinit_ieee80211_hw(struct ath6kl *ar); -void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, +void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted); + +void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, u16 listen_intvl, u16 beacon_intvl, enum network_type nw_type, u8 beacon_ie_len, u8 assoc_req_len, u8 assoc_resp_len, u8 *assoc_info); -void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason, +void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, u8 assoc_resp_len, u8 *assoc_info, u16 proto_reason); -void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid, +void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast); +int ath6kl_cfg80211_suspend(struct ath6kl *ar, + enum ath6kl_cfg_suspend_mode mode, + struct cfg80211_wowlan *wow); + +int ath6kl_cfg80211_resume(struct ath6kl *ar); + +void ath6kl_cfg80211_stop(struct ath6kl *ar); + #endif /* ATH6KL_CFG80211_H */ diff --git a/drivers/net/wireless/ath/ath6kl/common.h b/drivers/net/wireless/ath/ath6kl/common.h index b92f0e5d2336..41e465f29e63 100644 --- a/drivers/net/wireless/ath/ath6kl/common.h +++ b/drivers/net/wireless/ath/ath6kl/common.h @@ -23,8 +23,6 @@ extern int ath6kl_printk(const char *level, const char *fmt, ...); -#define A_CACHE_LINE_PAD 128 - /* * Reflects the version of binary interface exposed by ATH6KL target * firmware. Needs to be incremented by 1 for any change in the firmware @@ -78,20 +76,10 @@ enum crypto_type { struct htc_endpoint_credit_dist; struct ath6kl; enum htc_credit_dist_reason; -struct htc_credit_state_info; +struct ath6kl_htc_credit_info; -int ath6k_setup_credit_dist(void *htc_handle, - struct htc_credit_state_info *cred_info); -void ath6k_credit_distribute(struct htc_credit_state_info *cred_inf, - struct list_head *epdist_list, - enum htc_credit_dist_reason reason); -void ath6k_credit_init(struct htc_credit_state_info *cred_inf, - struct list_head *ep_list, - int tot_credits); -void ath6k_seek_credits(struct htc_credit_state_info *cred_inf, - struct htc_endpoint_credit_dist *ep_dist); struct ath6kl *ath6kl_core_alloc(struct device *sdev); int ath6kl_core_init(struct ath6kl *ar); -int ath6kl_unavail_ev(struct ath6kl *ar); +void ath6kl_core_cleanup(struct ath6kl *ar); struct sk_buff *ath6kl_buf_alloc(int size); #endif /* COMMON_H */ diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h index 6d8a4845baaf..e7e095e536a7 100644 --- a/drivers/net/wireless/ath/ath6kl/core.h +++ b/drivers/net/wireless/ath/ath6kl/core.h @@ -166,6 +166,7 @@ struct ath6kl_fw_ie { #define ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN BIT(1) #define ATH6KL_CONF_ENABLE_11N BIT(2) #define ATH6KL_CONF_ENABLE_TX_BURST BIT(3) +#define ATH6KL_CONF_SUSPEND_CUTPOWER BIT(4) enum wlan_low_pwr_state { WLAN_POWER_STATE_ON, @@ -380,40 +381,33 @@ struct ath6kl_req_key { u8 key_len; }; -/* Flag info */ -#define WMI_ENABLED 0 -#define WMI_READY 1 -#define CONNECTED 2 -#define STATS_UPDATE_PEND 3 -#define CONNECT_PEND 4 -#define WMM_ENABLED 5 -#define NETQ_STOPPED 6 -#define WMI_CTRL_EP_FULL 7 -#define DTIM_EXPIRED 8 -#define DESTROY_IN_PROGRESS 9 -#define NETDEV_REGISTERED 10 -#define SKIP_SCAN 11 -#define WLAN_ENABLED 12 -#define TESTMODE 13 -#define CLEAR_BSSFILTER_ON_BEACON 14 -#define DTIM_PERIOD_AVAIL 15 +#define MAX_NUM_VIF 1 + +/* vif flags info */ +enum ath6kl_vif_state { + CONNECTED, + CONNECT_PEND, + WMM_ENABLED, + NETQ_STOPPED, + DTIM_EXPIRED, + NETDEV_REGISTERED, + CLEAR_BSSFILTER_ON_BEACON, + DTIM_PERIOD_AVAIL, + WLAN_ENABLED, + STATS_UPDATE_PEND, +}; -struct ath6kl { - struct device *dev; - struct net_device *net_dev; - struct ath6kl_bmi bmi; - const struct ath6kl_hif_ops *hif_ops; - struct wmi *wmi; - int tx_pending[ENDPOINT_MAX]; - int total_tx_data_pend; - struct htc_target *htc_target; - void *hif_priv; - spinlock_t lock; - struct semaphore sem; +struct ath6kl_vif { + struct list_head list; + struct wireless_dev wdev; + struct net_device *ndev; + struct ath6kl *ar; + /* Lock to protect vif specific net_stats and flags */ + spinlock_t if_lock; + u8 fw_vif_idx; + unsigned long flags; int ssid_len; u8 ssid[IEEE80211_MAX_SSID_LEN]; - u8 next_mode; - u8 nw_type; u8 dot11_auth_mode; u8 auth_mode; u8 prwise_crypto; @@ -421,21 +415,83 @@ struct ath6kl { u8 grp_crypto; u8 grp_crypto_len; u8 def_txkey_index; - struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1]; + u8 next_mode; + u8 nw_type; u8 bssid[ETH_ALEN]; u8 req_bssid[ETH_ALEN]; u16 ch_hint; u16 bss_ch; + struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1]; + struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1]; + struct aggr_info *aggr_cntxt; + struct timer_list disconnect_timer; + struct cfg80211_scan_request *scan_req; + enum sme_state sme_state; + int reconnect_flag; + u32 last_roc_id; + u32 last_cancel_roc_id; + u32 send_action_id; + bool probe_req_report; + u16 next_chan; + u16 assoc_bss_beacon_int; + u8 assoc_bss_dtim_period; + struct net_device_stats net_stats; + struct target_stats target_stats; +}; + +#define WOW_LIST_ID 0 +#define WOW_HOST_REQ_DELAY 500 /* ms */ + +/* Flag info */ +enum ath6kl_dev_state { + WMI_ENABLED, + WMI_READY, + WMI_CTRL_EP_FULL, + TESTMODE, + DESTROY_IN_PROGRESS, + SKIP_SCAN, + ROAM_TBL_PEND, + FIRST_BOOT, +}; + +enum ath6kl_state { + ATH6KL_STATE_OFF, + ATH6KL_STATE_ON, + ATH6KL_STATE_DEEPSLEEP, + ATH6KL_STATE_CUTPOWER, + ATH6KL_STATE_WOW, +}; + +struct ath6kl { + struct device *dev; + struct wiphy *wiphy; + + enum ath6kl_state state; + + struct ath6kl_bmi bmi; + const struct ath6kl_hif_ops *hif_ops; + struct wmi *wmi; + int tx_pending[ENDPOINT_MAX]; + int total_tx_data_pend; + struct htc_target *htc_target; + void *hif_priv; + struct list_head vif_list; + /* Lock to avoid race in vif_list entries among add/del/traverse */ + spinlock_t list_lock; + u8 num_vif; + u8 max_norm_iface; + u8 avail_idx_map; + spinlock_t lock; + struct semaphore sem; u16 listen_intvl_b; u16 listen_intvl_t; u8 lrssi_roam_threshold; struct ath6kl_version version; u32 target_type; u8 tx_pwr; - struct net_device_stats net_stats; - struct target_stats target_stats; struct ath6kl_node_mapping node_map[MAX_NODE_NUM]; u8 ibss_ps_enable; + bool ibss_if_active; u8 node_num; u8 next_ep_id; struct ath6kl_cookie *cookie_list; @@ -446,7 +502,7 @@ struct ath6kl { u8 hiac_stream_active_pri; u8 ep2ac_map[ENDPOINT_MAX]; enum htc_endpoint_id ctrl_ep; - struct htc_credit_state_info credit_state_info; + struct ath6kl_htc_credit_info credit_state_info; u32 connect_ctrl_flags; u32 user_key_ctrl; u8 usr_bss_filter; @@ -456,18 +512,13 @@ struct ath6kl { struct sk_buff_head mcastpsq; spinlock_t mcastpsq_lock; u8 intra_bss; - struct aggr_info *aggr_cntxt; struct wmi_ap_mode_stat ap_stats; u8 ap_country_code[3]; struct list_head amsdu_rx_buffer_queue; - struct timer_list disconnect_timer; u8 rx_meta_ver; - struct wireless_dev *wdev; - struct cfg80211_scan_request *scan_req; - struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1]; - enum sme_state sme_state; enum wlan_low_pwr_state wlan_pwr_state; struct wmi_scan_params_cmd sc_params; + u8 mac_addr[ETH_ALEN]; #define AR_MCAST_FILTER_MAC_ADDR_SIZE 4 struct { void *rx_report; @@ -487,7 +538,6 @@ struct ath6kl { struct ath6kl_mbox_info mbox_info; struct ath6kl_cookie cookie_mem[MAX_COOKIE_NUM]; - int reconnect_flag; unsigned long flag; u8 *fw_board; @@ -508,13 +558,7 @@ struct ath6kl { struct dentry *debugfs_phy; - u32 send_action_id; - bool probe_req_report; - u16 next_chan; - bool p2p; - u16 assoc_bss_beacon_int; - u8 assoc_bss_dtim_period; #ifdef CONFIG_ATH6KL_DEBUG struct { @@ -529,23 +573,19 @@ struct ath6kl { struct { unsigned int invalid_rate; } war_stats; + + u8 *roam_tbl; + unsigned int roam_tbl_len; + + u8 keepalive; + u8 disc_timeout; } debug; #endif /* CONFIG_ATH6KL_DEBUG */ }; static inline void *ath6kl_priv(struct net_device *dev) { - return wdev_priv(dev->ieee80211_ptr); -} - -static inline void ath6kl_deposit_credit_to_ep(struct htc_credit_state_info - *cred_info, - struct htc_endpoint_credit_dist - *ep_dist, int credits) -{ - ep_dist->credits += credits; - ep_dist->cred_assngd += credits; - cred_info->cur_free_credits -= credits; + return ((struct ath6kl_vif *) netdev_priv(dev))->ar; } static inline u32 ath6kl_get_hi_item_addr(struct ath6kl *ar, @@ -561,7 +601,6 @@ static inline u32 ath6kl_get_hi_item_addr(struct ath6kl *ar, return addr; } -void ath6kl_destroy(struct net_device *dev, unsigned int unregister); int ath6kl_configure_target(struct ath6kl *ar); void ath6kl_detect_error(unsigned long ptr); void disconnect_timer_handler(unsigned long ptr); @@ -579,10 +618,8 @@ int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length); int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value); int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length); int ath6kl_read_fwlogs(struct ath6kl *ar); -void ath6kl_init_profile_info(struct ath6kl *ar); +void ath6kl_init_profile_info(struct ath6kl_vif *vif); void ath6kl_tx_data_cleanup(struct ath6kl *ar); -void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile, - bool get_dbglogs); struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar); void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie); @@ -598,40 +635,49 @@ struct htc_packet *ath6kl_alloc_amsdu_rxbuf(struct htc_target *target, void aggr_module_destroy(struct aggr_info *aggr_info); void aggr_reset_state(struct aggr_info *aggr_info); -struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 * node_addr); +struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 * node_addr); struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid); void ath6kl_ready_event(void *devt, u8 * datap, u32 sw_ver, u32 abi_ver); int ath6kl_control_tx(void *devt, struct sk_buff *skb, enum htc_endpoint_id eid); -void ath6kl_connect_event(struct ath6kl *ar, u16 channel, +void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, u16 listen_int, u16 beacon_int, enum network_type net_type, u8 beacon_ie_len, u8 assoc_req_len, u8 assoc_resp_len, u8 *assoc_info); -void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel); -void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr, +void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel); +void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, u8 keymgmt, u8 ucipher, u8 auth, u8 assoc_req_len, u8 *assoc_info); -void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, +void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, u8 assoc_resp_len, u8 *assoc_info, u16 prot_reason_status); -void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast); +void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast); void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr); -void ath6kl_scan_complete_evt(struct ath6kl *ar, int status); -void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len); +void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status); +void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len); void ath6kl_indicate_tx_activity(void *devt, u8 traffic_class, bool active); enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac); -void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid); +void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid); -void ath6kl_dtimexpiry_event(struct ath6kl *ar); -void ath6kl_disconnect(struct ath6kl *ar); -void ath6kl_deep_sleep_enable(struct ath6kl *ar); -void aggr_recv_delba_req_evt(struct ath6kl *ar, u8 tid); -void aggr_recv_addba_req_evt(struct ath6kl *ar, u8 tid, u16 seq_no, +void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif); +void ath6kl_disconnect(struct ath6kl_vif *vif); +void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid); +void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no, u8 win_sz); void ath6kl_wakeup_event(void *dev); -void ath6kl_target_failure(struct ath6kl *ar); + +void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, + bool wait_fot_compltn, bool cold_reset); +void ath6kl_init_control_info(struct ath6kl_vif *vif); +void ath6kl_deinit_if_data(struct ath6kl_vif *vif); +void ath6kl_core_free(struct ath6kl *ar); +struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar); +void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready); +int ath6kl_init_hw_start(struct ath6kl *ar); +int ath6kl_init_hw_stop(struct ath6kl *ar); +void ath6kl_check_wow_status(struct ath6kl *ar); #endif /* CORE_H */ diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c index 7879b5314285..9eff0d010bb1 100644 --- a/drivers/net/wireless/ath/ath6kl/debug.c +++ b/drivers/net/wireless/ath/ath6kl/debug.c @@ -143,49 +143,48 @@ void ath6kl_dump_registers(struct ath6kl_device *dev, static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) { - ath6kl_dbg(ATH6KL_DBG_ANY, + ath6kl_dbg(ATH6KL_DBG_CREDIT, "--- endpoint: %d svc_id: 0x%X ---\n", ep_dist->endpoint, ep_dist->svc_id); - ath6kl_dbg(ATH6KL_DBG_ANY, " dist_flags : 0x%X\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", ep_dist->dist_flags); - ath6kl_dbg(ATH6KL_DBG_ANY, " cred_norm : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", ep_dist->cred_norm); - ath6kl_dbg(ATH6KL_DBG_ANY, " cred_min : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", ep_dist->cred_min); - ath6kl_dbg(ATH6KL_DBG_ANY, " credits : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", ep_dist->credits); - ath6kl_dbg(ATH6KL_DBG_ANY, " cred_assngd : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", ep_dist->cred_assngd); - ath6kl_dbg(ATH6KL_DBG_ANY, " seek_cred : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", ep_dist->seek_cred); - ath6kl_dbg(ATH6KL_DBG_ANY, " cred_sz : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", ep_dist->cred_sz); - ath6kl_dbg(ATH6KL_DBG_ANY, " cred_per_msg : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", ep_dist->cred_per_msg); - ath6kl_dbg(ATH6KL_DBG_ANY, " cred_to_dist : %d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", ep_dist->cred_to_dist); - ath6kl_dbg(ATH6KL_DBG_ANY, " txq_depth : %d\n", - get_queue_depth(&((struct htc_endpoint *) - ep_dist->htc_rsvd)->txq)); - ath6kl_dbg(ATH6KL_DBG_ANY, + ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", + get_queue_depth(&ep_dist->htc_ep->txq)); + ath6kl_dbg(ATH6KL_DBG_CREDIT, "----------------------------------\n"); } +/* FIXME: move to htc.c */ void dump_cred_dist_stats(struct htc_target *target) { struct htc_endpoint_credit_dist *ep_list; - if (!AR_DBG_LVL_CHECK(ATH6KL_DBG_TRC)) + if (!AR_DBG_LVL_CHECK(ATH6KL_DBG_CREDIT)) return; list_for_each_entry(ep_list, &target->cred_dist_list, list) dump_cred_dist(ep_list); - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:%p dist:%p\n", - target->cred_dist_cntxt, NULL); - ath6kl_dbg(ATH6KL_DBG_TRC, "credit distribution, total : %d, free : %d\n", - target->cred_dist_cntxt->total_avail_credits, - target->cred_dist_cntxt->cur_free_credits); + ath6kl_dbg(ATH6KL_DBG_CREDIT, + "credit distribution total %d free %d\n", + target->credit_info->total_avail_credits, + target->credit_info->cur_free_credits); } static int ath6kl_debugfs_open(struct inode *inode, struct file *file) @@ -397,13 +396,20 @@ static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath6kl *ar = file->private_data; - struct target_stats *tgt_stats = &ar->target_stats; + struct ath6kl_vif *vif; + struct target_stats *tgt_stats; char *buf; unsigned int len = 0, buf_len = 1500; int i; long left; ssize_t ret_cnt; + vif = ath6kl_vif_first(ar); + if (!vif) + return -EIO; + + tgt_stats = &vif->target_stats; + buf = kzalloc(buf_len, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -413,9 +419,9 @@ static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, return -EBUSY; } - set_bit(STATS_UPDATE_PEND, &ar->flag); + set_bit(STATS_UPDATE_PEND, &vif->flags); - if (ath6kl_wmi_get_stats_cmd(ar->wmi)) { + if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { up(&ar->sem); kfree(buf); return -EIO; @@ -423,7 +429,7 @@ static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, left = wait_event_interruptible_timeout(ar->event_wq, !test_bit(STATS_UPDATE_PEND, - &ar->flag), WMI_TIMEOUT); + &vif->flags), WMI_TIMEOUT); up(&ar->sem); @@ -555,10 +561,10 @@ static ssize_t read_file_credit_dist_stats(struct file *file, len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", "Total Avail Credits: ", - target->cred_dist_cntxt->total_avail_credits); + target->credit_info->total_avail_credits); len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", "Free credits :", - target->cred_dist_cntxt->cur_free_credits); + target->credit_info->cur_free_credits); len += scnprintf(buf + len, buf_len - len, " Epid Flags Cred_norm Cred_min Credits Cred_assngd" @@ -577,8 +583,7 @@ static ssize_t read_file_credit_dist_stats(struct file *file, print_credit_info("%9d", cred_per_msg); print_credit_info("%14d", cred_to_dist); len += scnprintf(buf + len, buf_len - len, "%12d\n", - get_queue_depth(&((struct htc_endpoint *) - ep_list->htc_rsvd)->txq)); + get_queue_depth(&ep_list->htc_ep->txq)); } if (len > buf_len) @@ -596,6 +601,107 @@ static const struct file_operations fops_credit_dist_stats = { .llseek = default_llseek, }; +static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, + unsigned int buf_len, unsigned int len, + int offset, const char *name) +{ + int i; + struct htc_endpoint_stats *ep_st; + u32 *counter; + + len += scnprintf(buf + len, buf_len - len, "%s:", name); + for (i = 0; i < ENDPOINT_MAX; i++) { + ep_st = &target->endpoint[i].ep_st; + counter = ((u32 *) ep_st) + (offset / 4); + len += scnprintf(buf + len, buf_len - len, " %u", *counter); + } + len += scnprintf(buf + len, buf_len - len, "\n"); + + return len; +} + +static ssize_t ath6kl_endpoint_stats_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + struct htc_target *target = ar->htc_target; + char *buf; + unsigned int buf_len, len = 0; + ssize_t ret_cnt; + + buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * + (25 + ENDPOINT_MAX * 11); + buf = kmalloc(buf_len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + +#define EPSTAT(name) \ + len = print_endpoint_stat(target, buf, buf_len, len, \ + offsetof(struct htc_endpoint_stats, name), \ + #name) + EPSTAT(cred_low_indicate); + EPSTAT(tx_issued); + EPSTAT(tx_pkt_bundled); + EPSTAT(tx_bundles); + EPSTAT(tx_dropped); + EPSTAT(tx_cred_rpt); + EPSTAT(cred_rpt_from_rx); + EPSTAT(cred_rpt_from_other); + EPSTAT(cred_rpt_ep0); + EPSTAT(cred_from_rx); + EPSTAT(cred_from_other); + EPSTAT(cred_from_ep0); + EPSTAT(cred_cosumd); + EPSTAT(cred_retnd); + EPSTAT(rx_pkts); + EPSTAT(rx_lkahds); + EPSTAT(rx_bundl); + EPSTAT(rx_bundle_lkahd); + EPSTAT(rx_bundle_from_hdr); + EPSTAT(rx_alloc_thresh_hit); + EPSTAT(rxalloc_thresh_byte); +#undef EPSTAT + + if (len > buf_len) + len = buf_len; + + ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + return ret_cnt; +} + +static ssize_t ath6kl_endpoint_stats_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + struct htc_target *target = ar->htc_target; + int ret, i; + u32 val; + struct htc_endpoint_stats *ep_st; + + ret = kstrtou32_from_user(user_buf, count, 0, &val); + if (ret) + return ret; + if (val == 0) { + for (i = 0; i < ENDPOINT_MAX; i++) { + ep_st = &target->endpoint[i].ep_st; + memset(ep_st, 0, sizeof(*ep_st)); + } + } + + return count; +} + +static const struct file_operations fops_endpoint_stats = { + .open = ath6kl_debugfs_open, + .read = ath6kl_endpoint_stats_read, + .write = ath6kl_endpoint_stats_write, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + static unsigned long ath6kl_get_num_reg(void) { int i; @@ -868,6 +974,660 @@ static const struct file_operations fops_diag_reg_write = { .llseek = default_llseek, }; +int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, + size_t len) +{ + const struct wmi_target_roam_tbl *tbl; + u16 num_entries; + + if (len < sizeof(*tbl)) + return -EINVAL; + + tbl = (const struct wmi_target_roam_tbl *) buf; + num_entries = le16_to_cpu(tbl->num_entries); + if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > + len) + return -EINVAL; + + if (ar->debug.roam_tbl == NULL || + ar->debug.roam_tbl_len < (unsigned int) len) { + kfree(ar->debug.roam_tbl); + ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); + if (ar->debug.roam_tbl == NULL) + return -ENOMEM; + } + + memcpy(ar->debug.roam_tbl, buf, len); + ar->debug.roam_tbl_len = len; + + if (test_bit(ROAM_TBL_PEND, &ar->flag)) { + clear_bit(ROAM_TBL_PEND, &ar->flag); + wake_up(&ar->event_wq); + } + + return 0; +} + +static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + int ret; + long left; + struct wmi_target_roam_tbl *tbl; + u16 num_entries, i; + char *buf; + unsigned int len, buf_len; + ssize_t ret_cnt; + + if (down_interruptible(&ar->sem)) + return -EBUSY; + + set_bit(ROAM_TBL_PEND, &ar->flag); + + ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); + if (ret) { + up(&ar->sem); + return ret; + } + + left = wait_event_interruptible_timeout( + ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); + up(&ar->sem); + + if (left <= 0) + return -ETIMEDOUT; + + if (ar->debug.roam_tbl == NULL) + return -ENOMEM; + + tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; + num_entries = le16_to_cpu(tbl->num_entries); + + buf_len = 100 + num_entries * 100; + buf = kzalloc(buf_len, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + len = 0; + len += scnprintf(buf + len, buf_len - len, + "roam_mode=%u\n\n" + "# roam_util bssid rssi rssidt last_rssi util bias\n", + le16_to_cpu(tbl->roam_mode)); + + for (i = 0; i < num_entries; i++) { + struct wmi_bss_roam_info *info = &tbl->info[i]; + len += scnprintf(buf + len, buf_len - len, + "%d %pM %d %d %d %d %d\n", + a_sle32_to_cpu(info->roam_util), info->bssid, + info->rssi, info->rssidt, info->last_rssi, + info->util, info->bias); + } + + if (len > buf_len) + len = buf_len; + + ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); + + kfree(buf); + return ret_cnt; +} + +static const struct file_operations fops_roam_table = { + .read = ath6kl_roam_table_read, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath6kl_force_roam_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + int ret; + char buf[20]; + size_t len; + u8 bssid[ETH_ALEN]; + int i; + int addr[ETH_ALEN]; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + + if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", + &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) + != ETH_ALEN) + return -EINVAL; + for (i = 0; i < ETH_ALEN; i++) + bssid[i] = addr[i]; + + ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); + if (ret) + return ret; + + return count; +} + +static const struct file_operations fops_force_roam = { + .write = ath6kl_force_roam_write, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath6kl_roam_mode_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + int ret; + char buf[20]; + size_t len; + enum wmi_roam_mode mode; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + if (len > 0 && buf[len - 1] == '\n') + buf[len - 1] = '\0'; + + if (strcasecmp(buf, "default") == 0) + mode = WMI_DEFAULT_ROAM_MODE; + else if (strcasecmp(buf, "bssbias") == 0) + mode = WMI_HOST_BIAS_ROAM_MODE; + else if (strcasecmp(buf, "lock") == 0) + mode = WMI_LOCK_BSS_MODE; + else + return -EINVAL; + + ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); + if (ret) + return ret; + + return count; +} + +static const struct file_operations fops_roam_mode = { + .write = ath6kl_roam_mode_write, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) +{ + ar->debug.keepalive = keepalive; +} + +static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + char buf[16]; + int len; + + len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t ath6kl_keepalive_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + int ret; + u8 val; + + ret = kstrtou8_from_user(user_buf, count, 0, &val); + if (ret) + return ret; + + ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); + if (ret) + return ret; + + return count; +} + +static const struct file_operations fops_keepalive = { + .open = ath6kl_debugfs_open, + .read = ath6kl_keepalive_read, + .write = ath6kl_keepalive_write, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) +{ + ar->debug.disc_timeout = timeout; +} + +static ssize_t ath6kl_disconnect_timeout_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + char buf[16]; + int len; + + len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t ath6kl_disconnect_timeout_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + int ret; + u8 val; + + ret = kstrtou8_from_user(user_buf, count, 0, &val); + if (ret) + return ret; + + ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); + if (ret) + return ret; + + return count; +} + +static const struct file_operations fops_disconnect_timeout = { + .open = ath6kl_debugfs_open, + .read = ath6kl_disconnect_timeout_read, + .write = ath6kl_disconnect_timeout_write, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath6kl_create_qos_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct ath6kl *ar = file->private_data; + struct ath6kl_vif *vif; + char buf[200]; + ssize_t len; + char *sptr, *token; + struct wmi_create_pstream_cmd pstream; + u32 val32; + u16 val16; + + vif = ath6kl_vif_first(ar); + if (!vif) + return -EIO; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + sptr = buf; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &pstream.user_pri)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &pstream.traffic_direc)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &pstream.traffic_class)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &pstream.traffic_type)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &pstream.voice_psc_cap)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.min_service_int = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.max_service_int = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.inactivity_int = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.suspension_int = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.service_start_time = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &pstream.tsid)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou16(token, 0, &val16)) + return -EINVAL; + pstream.nominal_msdu = cpu_to_le16(val16); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou16(token, 0, &val16)) + return -EINVAL; + pstream.max_msdu = cpu_to_le16(val16); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.min_data_rate = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.mean_data_rate = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.peak_data_rate = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.max_burst_size = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.delay_bound = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.min_phy_rate = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.sba = cpu_to_le32(val32); + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou32(token, 0, &val32)) + return -EINVAL; + pstream.medium_time = cpu_to_le32(val32); + + ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); + + return count; +} + +static const struct file_operations fops_create_qos = { + .write = ath6kl_create_qos_write, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath6kl_delete_qos_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct ath6kl *ar = file->private_data; + struct ath6kl_vif *vif; + char buf[100]; + ssize_t len; + char *sptr, *token; + u8 traffic_class; + u8 tsid; + + vif = ath6kl_vif_first(ar); + if (!vif) + return -EIO; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + sptr = buf; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &traffic_class)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou8(token, 0, &tsid)) + return -EINVAL; + + ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, + traffic_class, tsid); + + return count; +} + +static const struct file_operations fops_delete_qos = { + .write = ath6kl_delete_qos_write, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath6kl_bgscan_int_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + u16 bgscan_int; + char buf[32]; + ssize_t len; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + + buf[len] = '\0'; + if (kstrtou16(buf, 0, &bgscan_int)) + return -EINVAL; + + if (bgscan_int == 0) + bgscan_int = 0xffff; + + ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, + 0, 0, 0); + + return count; +} + +static const struct file_operations fops_bgscan_int = { + .write = ath6kl_bgscan_int_write, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath6kl_listen_int_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + u16 listen_int_t, listen_int_b; + char buf[32]; + char *sptr, *token; + ssize_t len; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + + buf[len] = '\0'; + sptr = buf; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + + if (kstrtou16(token, 0, &listen_int_t)) + return -EINVAL; + + if (kstrtou16(sptr, 0, &listen_int_b)) + return -EINVAL; + + if ((listen_int_t < 15) || (listen_int_t > 5000)) + return -EINVAL; + + if ((listen_int_b < 1) || (listen_int_b > 50)) + return -EINVAL; + + ar->listen_intvl_t = listen_int_t; + ar->listen_intvl_b = listen_int_b; + + ath6kl_wmi_listeninterval_cmd(ar->wmi, 0, ar->listen_intvl_t, + ar->listen_intvl_b); + + return count; +} + +static ssize_t ath6kl_listen_int_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + char buf[16]; + int len; + + len = snprintf(buf, sizeof(buf), "%u %u\n", ar->listen_intvl_t, + ar->listen_intvl_b); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static const struct file_operations fops_listen_int = { + .read = ath6kl_listen_int_read, + .write = ath6kl_listen_int_write, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t ath6kl_power_params_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath6kl *ar = file->private_data; + u8 buf[100]; + unsigned int len = 0; + char *sptr, *token; + u16 idle_period, ps_poll_num, dtim, + tx_wakeup, num_tx; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + sptr = buf; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou16(token, 0, &idle_period)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou16(token, 0, &ps_poll_num)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou16(token, 0, &dtim)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou16(token, 0, &tx_wakeup)) + return -EINVAL; + + token = strsep(&sptr, " "); + if (!token) + return -EINVAL; + if (kstrtou16(token, 0, &num_tx)) + return -EINVAL; + + ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, + dtim, tx_wakeup, num_tx, 0); + + return count; +} + +static const struct file_operations fops_power_params = { + .write = ath6kl_power_params_write, + .open = ath6kl_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + int ath6kl_debug_init(struct ath6kl *ar) { ar->debug.fwlog_buf.buf = vmalloc(ATH6KL_FWLOG_SIZE); @@ -889,7 +1649,7 @@ int ath6kl_debug_init(struct ath6kl *ar) ar->debug.fwlog_mask = 0; ar->debugfs_phy = debugfs_create_dir("ath6kl", - ar->wdev->wiphy->debugfsdir); + ar->wiphy->debugfsdir); if (!ar->debugfs_phy) { vfree(ar->debug.fwlog_buf.buf); kfree(ar->debug.fwlog_tmp); @@ -902,6 +1662,9 @@ int ath6kl_debug_init(struct ath6kl *ar) debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar, &fops_credit_dist_stats); + debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, + ar->debugfs_phy, ar, &fops_endpoint_stats); + debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, &fops_fwlog); @@ -923,6 +1686,33 @@ int ath6kl_debug_init(struct ath6kl *ar) debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, &fops_war_stats); + debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, + &fops_roam_table); + + debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, + &fops_force_roam); + + debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, + &fops_roam_mode); + + debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, + &fops_keepalive); + + debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, + ar->debugfs_phy, ar, &fops_disconnect_timeout); + + debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, + &fops_create_qos); + + debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, + &fops_delete_qos); + + debugfs_create_file("bgscan_interval", S_IWUSR, + ar->debugfs_phy, ar, &fops_bgscan_int); + + debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, + &fops_power_params); + return 0; } @@ -930,6 +1720,7 @@ void ath6kl_debug_cleanup(struct ath6kl *ar) { vfree(ar->debug.fwlog_buf.buf); kfree(ar->debug.fwlog_tmp); + kfree(ar->debug.roam_tbl); } #endif diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h index 7b7675f70a10..9853c9c125c1 100644 --- a/drivers/net/wireless/ath/ath6kl/debug.h +++ b/drivers/net/wireless/ath/ath6kl/debug.h @@ -17,19 +17,19 @@ #ifndef DEBUG_H #define DEBUG_H -#include "htc_hif.h" +#include "hif.h" enum ATH6K_DEBUG_MASK { - ATH6KL_DBG_WLAN_CONNECT = BIT(0), /* wlan connect */ - ATH6KL_DBG_WLAN_SCAN = BIT(1), /* wlan scan */ + ATH6KL_DBG_CREDIT = BIT(0), + /* hole */ ATH6KL_DBG_WLAN_TX = BIT(2), /* wlan tx */ ATH6KL_DBG_WLAN_RX = BIT(3), /* wlan rx */ ATH6KL_DBG_BMI = BIT(4), /* bmi tracing */ - ATH6KL_DBG_HTC_SEND = BIT(5), /* htc send */ - ATH6KL_DBG_HTC_RECV = BIT(6), /* htc recv */ + ATH6KL_DBG_HTC = BIT(5), + ATH6KL_DBG_HIF = BIT(6), ATH6KL_DBG_IRQ = BIT(7), /* interrupt processing */ - ATH6KL_DBG_PM = BIT(8), /* power management */ - ATH6KL_DBG_WLAN_NODE = BIT(9), /* general wlan node tracing */ + /* hole */ + /* hole */ ATH6KL_DBG_WMI = BIT(10), /* wmi tracing */ ATH6KL_DBG_TRC = BIT(11), /* generic func tracing */ ATH6KL_DBG_SCATTER = BIT(12), /* hif scatter tracing */ @@ -40,6 +40,7 @@ enum ATH6K_DEBUG_MASK { ATH6KL_DBG_SDIO_DUMP = BIT(17), ATH6KL_DBG_BOOT = BIT(18), /* driver init and fw boot */ ATH6KL_DBG_WMI_DUMP = BIT(19), + ATH6KL_DBG_SUSPEND = BIT(20), ATH6KL_DBG_ANY = 0xffffffff /* enable all logs */ }; @@ -90,6 +91,10 @@ void ath6kl_dump_registers(struct ath6kl_device *dev, void dump_cred_dist_stats(struct htc_target *target); void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len); void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war); +int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, + size_t len); +void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive); +void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout); int ath6kl_debug_init(struct ath6kl *ar); void ath6kl_debug_cleanup(struct ath6kl *ar); @@ -125,6 +130,21 @@ static inline void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) { } +static inline int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, + const void *buf, size_t len) +{ + return 0; +} + +static inline void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) +{ +} + +static inline void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, + u8 timeout) +{ +} + static inline int ath6kl_debug_init(struct ath6kl *ar) { return 0; diff --git a/drivers/net/wireless/ath/ath6kl/hif-ops.h b/drivers/net/wireless/ath/ath6kl/hif-ops.h index d6c898f3d0b3..eed22870448b 100644 --- a/drivers/net/wireless/ath/ath6kl/hif-ops.h +++ b/drivers/net/wireless/ath/ath6kl/hif-ops.h @@ -18,10 +18,16 @@ #define HIF_OPS_H #include "hif.h" +#include "debug.h" static inline int hif_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf, u32 len, u32 request) { + ath6kl_dbg(ATH6KL_DBG_HIF, + "hif %s sync addr 0x%x buf 0x%p len %d request 0x%x\n", + (request & HIF_WRITE) ? "write" : "read", + addr, buf, len, request); + return ar->hif_ops->read_write_sync(ar, addr, buf, len, request); } @@ -29,16 +35,24 @@ static inline int hif_write_async(struct ath6kl *ar, u32 address, u8 *buffer, u32 length, u32 request, struct htc_packet *packet) { + ath6kl_dbg(ATH6KL_DBG_HIF, + "hif write async addr 0x%x buf 0x%p len %d request 0x%x\n", + address, buffer, length, request); + return ar->hif_ops->write_async(ar, address, buffer, length, request, packet); } static inline void ath6kl_hif_irq_enable(struct ath6kl *ar) { + ath6kl_dbg(ATH6KL_DBG_HIF, "hif irq enable\n"); + return ar->hif_ops->irq_enable(ar); } static inline void ath6kl_hif_irq_disable(struct ath6kl *ar) { + ath6kl_dbg(ATH6KL_DBG_HIF, "hif irq disable\n"); + return ar->hif_ops->irq_disable(ar); } @@ -69,9 +83,40 @@ static inline void ath6kl_hif_cleanup_scatter(struct ath6kl *ar) return ar->hif_ops->cleanup_scatter(ar); } -static inline int ath6kl_hif_suspend(struct ath6kl *ar) +static inline int ath6kl_hif_suspend(struct ath6kl *ar, + struct cfg80211_wowlan *wow) { - return ar->hif_ops->suspend(ar); + ath6kl_dbg(ATH6KL_DBG_HIF, "hif suspend\n"); + + return ar->hif_ops->suspend(ar, wow); +} + +static inline int ath6kl_hif_resume(struct ath6kl *ar) +{ + ath6kl_dbg(ATH6KL_DBG_HIF, "hif resume\n"); + + return ar->hif_ops->resume(ar); +} + +static inline int ath6kl_hif_power_on(struct ath6kl *ar) +{ + ath6kl_dbg(ATH6KL_DBG_HIF, "hif power on\n"); + + return ar->hif_ops->power_on(ar); +} + +static inline int ath6kl_hif_power_off(struct ath6kl *ar) +{ + ath6kl_dbg(ATH6KL_DBG_HIF, "hif power off\n"); + + return ar->hif_ops->power_off(ar); +} + +static inline void ath6kl_hif_stop(struct ath6kl *ar) +{ + ath6kl_dbg(ATH6KL_DBG_HIF, "hif stop\n"); + + ar->hif_ops->stop(ar); } #endif diff --git a/drivers/net/wireless/ath/ath6kl/htc_hif.c b/drivers/net/wireless/ath/ath6kl/hif.c index 86b1cc7409c2..e57da35e59fa 100644 --- a/drivers/net/wireless/ath/ath6kl/htc_hif.c +++ b/drivers/net/wireless/ath/ath6kl/hif.c @@ -13,18 +13,19 @@ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include "hif.h" #include "core.h" #include "target.h" #include "hif-ops.h" -#include "htc_hif.h" #include "debug.h" #define MAILBOX_FOR_BLOCK_SIZE 1 #define ATH6KL_TIME_QUANTUM 10 /* in ms */ -static int ath6kldev_cp_scat_dma_buf(struct hif_scatter_req *req, bool from_dma) +static int ath6kl_hif_cp_scat_dma_buf(struct hif_scatter_req *req, + bool from_dma) { u8 *buf; int i; @@ -46,12 +47,11 @@ static int ath6kldev_cp_scat_dma_buf(struct hif_scatter_req *req, bool from_dma) return 0; } -int ath6kldev_rw_comp_handler(void *context, int status) +int ath6kl_hif_rw_comp_handler(void *context, int status) { struct htc_packet *packet = context; - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "ath6kldev_rw_comp_handler (pkt:0x%p , status: %d\n", + ath6kl_dbg(ATH6KL_DBG_HIF, "hif rw completion pkt 0x%p status %d\n", packet, status); packet->status = status; @@ -59,30 +59,83 @@ int ath6kldev_rw_comp_handler(void *context, int status) return 0; } +#define REG_DUMP_COUNT_AR6003 60 +#define REGISTER_DUMP_LEN_MAX 60 -static int ath6kldev_proc_dbg_intr(struct ath6kl_device *dev) +static void ath6kl_hif_dump_fw_crash(struct ath6kl *ar) { - u32 dummy; - int status; + __le32 regdump_val[REGISTER_DUMP_LEN_MAX]; + u32 i, address, regdump_addr = 0; + int ret; + + if (ar->target_type != TARGET_TYPE_AR6003) + return; + + /* the reg dump pointer is copied to the host interest area */ + address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state)); + address = TARG_VTOP(ar->target_type, address); + + /* read RAM location through diagnostic window */ + ret = ath6kl_diag_read32(ar, address, ®dump_addr); + + if (ret || !regdump_addr) { + ath6kl_warn("failed to get ptr to register dump area: %d\n", + ret); + return; + } + + ath6kl_dbg(ATH6KL_DBG_IRQ, "register dump data address 0x%x\n", + regdump_addr); + regdump_addr = TARG_VTOP(ar->target_type, regdump_addr); + + /* fetch register dump data */ + ret = ath6kl_diag_read(ar, regdump_addr, (u8 *)®dump_val[0], + REG_DUMP_COUNT_AR6003 * (sizeof(u32))); + if (ret) { + ath6kl_warn("failed to get register dump: %d\n", ret); + return; + } + + ath6kl_info("crash dump:\n"); + ath6kl_info("hw 0x%x fw %s\n", ar->wiphy->hw_version, + ar->wiphy->fw_version); + + BUILD_BUG_ON(REG_DUMP_COUNT_AR6003 % 4); - ath6kl_err("target debug interrupt\n"); + for (i = 0; i < REG_DUMP_COUNT_AR6003 / 4; i++) { + ath6kl_info("%d: 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x\n", + 4 * i, + le32_to_cpu(regdump_val[i]), + le32_to_cpu(regdump_val[i + 1]), + le32_to_cpu(regdump_val[i + 2]), + le32_to_cpu(regdump_val[i + 3])); + } + +} + +static int ath6kl_hif_proc_dbg_intr(struct ath6kl_device *dev) +{ + u32 dummy; + int ret; - ath6kl_target_failure(dev->ar); + ath6kl_warn("firmware crashed\n"); /* * read counter to clear the interrupt, the debug error interrupt is * counter 0. */ - status = hif_read_write_sync(dev->ar, COUNT_DEC_ADDRESS, + ret = hif_read_write_sync(dev->ar, COUNT_DEC_ADDRESS, (u8 *)&dummy, 4, HIF_RD_SYNC_BYTE_INC); - if (status) - WARN_ON(1); + if (ret) + ath6kl_warn("Failed to clear debug interrupt: %d\n", ret); - return status; + ath6kl_hif_dump_fw_crash(dev->ar); + + return ret; } /* mailbox recv message polling */ -int ath6kldev_poll_mboxmsg_rx(struct ath6kl_device *dev, u32 *lk_ahd, +int ath6kl_hif_poll_mboxmsg_rx(struct ath6kl_device *dev, u32 *lk_ahd, int timeout) { struct ath6kl_irq_proc_registers *rg; @@ -118,7 +171,7 @@ int ath6kldev_poll_mboxmsg_rx(struct ath6kl_device *dev, u32 *lk_ahd, /* delay a little */ mdelay(ATH6KL_TIME_QUANTUM); - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, "retry mbox poll : %d\n", i); + ath6kl_dbg(ATH6KL_DBG_HIF, "hif retry mbox poll try %d\n", i); } if (i == 0) { @@ -131,7 +184,7 @@ int ath6kldev_poll_mboxmsg_rx(struct ath6kl_device *dev, u32 *lk_ahd, * Target failure handler will be called in case of * an assert. */ - ath6kldev_proc_dbg_intr(dev); + ath6kl_hif_proc_dbg_intr(dev); } return status; @@ -141,11 +194,14 @@ int ath6kldev_poll_mboxmsg_rx(struct ath6kl_device *dev, u32 *lk_ahd, * Disable packet reception (used in case the host runs out of buffers) * using the interrupt enable registers through the host I/F */ -int ath6kldev_rx_control(struct ath6kl_device *dev, bool enable_rx) +int ath6kl_hif_rx_control(struct ath6kl_device *dev, bool enable_rx) { struct ath6kl_irq_enable_reg regs; int status = 0; + ath6kl_dbg(ATH6KL_DBG_HIF, "hif rx %s\n", + enable_rx ? "enable" : "disable"); + /* take the lock to protect interrupt enable shadows */ spin_lock_bh(&dev->lock); @@ -168,7 +224,7 @@ int ath6kldev_rx_control(struct ath6kl_device *dev, bool enable_rx) return status; } -int ath6kldev_submit_scat_req(struct ath6kl_device *dev, +int ath6kl_hif_submit_scat_req(struct ath6kl_device *dev, struct hif_scatter_req *scat_req, bool read) { int status = 0; @@ -185,14 +241,14 @@ int ath6kldev_submit_scat_req(struct ath6kl_device *dev, dev->ar->mbox_info.htc_addr; } - ath6kl_dbg((ATH6KL_DBG_HTC_RECV | ATH6KL_DBG_HTC_SEND), - "ath6kldev_submit_scat_req, entries: %d, total len: %d mbox:0x%X (mode: %s : %s)\n", + ath6kl_dbg(ATH6KL_DBG_HIF, + "hif submit scatter request entries %d len %d mbox 0x%x %s %s\n", scat_req->scat_entries, scat_req->len, scat_req->addr, !read ? "async" : "sync", (read) ? "rd" : "wr"); if (!read && scat_req->virt_scat) { - status = ath6kldev_cp_scat_dma_buf(scat_req, false); + status = ath6kl_hif_cp_scat_dma_buf(scat_req, false); if (status) { scat_req->status = status; scat_req->complete(dev->ar->htc_target, scat_req); @@ -207,13 +263,13 @@ int ath6kldev_submit_scat_req(struct ath6kl_device *dev, scat_req->status = status; if (!status && scat_req->virt_scat) scat_req->status = - ath6kldev_cp_scat_dma_buf(scat_req, true); + ath6kl_hif_cp_scat_dma_buf(scat_req, true); } return status; } -static int ath6kldev_proc_counter_intr(struct ath6kl_device *dev) +static int ath6kl_hif_proc_counter_intr(struct ath6kl_device *dev) { u8 counter_int_status; @@ -232,12 +288,12 @@ static int ath6kldev_proc_counter_intr(struct ath6kl_device *dev) * the debug assertion counter interrupt. */ if (counter_int_status & ATH6KL_TARGET_DEBUG_INTR_MASK) - return ath6kldev_proc_dbg_intr(dev); + return ath6kl_hif_proc_dbg_intr(dev); return 0; } -static int ath6kldev_proc_err_intr(struct ath6kl_device *dev) +static int ath6kl_hif_proc_err_intr(struct ath6kl_device *dev) { int status; u8 error_int_status; @@ -282,7 +338,7 @@ static int ath6kldev_proc_err_intr(struct ath6kl_device *dev) return status; } -static int ath6kldev_proc_cpu_intr(struct ath6kl_device *dev) +static int ath6kl_hif_proc_cpu_intr(struct ath6kl_device *dev) { int status; u8 cpu_int_status; @@ -417,7 +473,7 @@ static int proc_pending_irqs(struct ath6kl_device *dev, bool *done) * we rapidly pull packets. */ status = ath6kl_htc_rxmsg_pending_handler(dev->htc_cnxt, - &lk_ahd, &fetched); + lk_ahd, &fetched); if (status) goto out; @@ -436,21 +492,21 @@ static int proc_pending_irqs(struct ath6kl_device *dev, bool *done) if (MS(HOST_INT_STATUS_CPU, host_int_status)) { /* CPU Interrupt */ - status = ath6kldev_proc_cpu_intr(dev); + status = ath6kl_hif_proc_cpu_intr(dev); if (status) goto out; } if (MS(HOST_INT_STATUS_ERROR, host_int_status)) { /* Error Interrupt */ - status = ath6kldev_proc_err_intr(dev); + status = ath6kl_hif_proc_err_intr(dev); if (status) goto out; } if (MS(HOST_INT_STATUS_COUNTER, host_int_status)) /* Counter Interrupt */ - status = ath6kldev_proc_counter_intr(dev); + status = ath6kl_hif_proc_counter_intr(dev); out: /* @@ -479,9 +535,10 @@ out: } /* interrupt handler, kicks off all interrupt processing */ -int ath6kldev_intr_bh_handler(struct ath6kl *ar) +int ath6kl_hif_intr_bh_handler(struct ath6kl *ar) { struct ath6kl_device *dev = ar->htc_target->dev; + unsigned long timeout; int status = 0; bool done = false; @@ -495,7 +552,8 @@ int ath6kldev_intr_bh_handler(struct ath6kl *ar) * IRQ processing is synchronous, interrupt status registers can be * re-read. */ - while (!done) { + timeout = jiffies + msecs_to_jiffies(ATH6KL_HIF_COMMUNICATION_TIMEOUT); + while (time_before(jiffies, timeout) && !done) { status = proc_pending_irqs(dev, &done); if (status) break; @@ -504,7 +562,7 @@ int ath6kldev_intr_bh_handler(struct ath6kl *ar) return status; } -static int ath6kldev_enable_intrs(struct ath6kl_device *dev) +static int ath6kl_hif_enable_intrs(struct ath6kl_device *dev) { struct ath6kl_irq_enable_reg regs; int status; @@ -552,7 +610,7 @@ static int ath6kldev_enable_intrs(struct ath6kl_device *dev) return status; } -int ath6kldev_disable_intrs(struct ath6kl_device *dev) +int ath6kl_hif_disable_intrs(struct ath6kl_device *dev) { struct ath6kl_irq_enable_reg regs; @@ -571,7 +629,7 @@ int ath6kldev_disable_intrs(struct ath6kl_device *dev) } /* enable device interrupts */ -int ath6kldev_unmask_intrs(struct ath6kl_device *dev) +int ath6kl_hif_unmask_intrs(struct ath6kl_device *dev) { int status = 0; @@ -583,29 +641,29 @@ int ath6kldev_unmask_intrs(struct ath6kl_device *dev) * target "soft" resets. The ATH6KL interrupt enables reset back to an * "enabled" state when this happens. */ - ath6kldev_disable_intrs(dev); + ath6kl_hif_disable_intrs(dev); /* unmask the host controller interrupts */ ath6kl_hif_irq_enable(dev->ar); - status = ath6kldev_enable_intrs(dev); + status = ath6kl_hif_enable_intrs(dev); return status; } /* disable all device interrupts */ -int ath6kldev_mask_intrs(struct ath6kl_device *dev) +int ath6kl_hif_mask_intrs(struct ath6kl_device *dev) { /* * Mask the interrupt at the HIF layer to avoid any stray interrupt * taken while we zero out our shadow registers in - * ath6kldev_disable_intrs(). + * ath6kl_hif_disable_intrs(). */ ath6kl_hif_irq_disable(dev->ar); - return ath6kldev_disable_intrs(dev); + return ath6kl_hif_disable_intrs(dev); } -int ath6kldev_setup(struct ath6kl_device *dev) +int ath6kl_hif_setup(struct ath6kl_device *dev) { int status = 0; @@ -621,19 +679,17 @@ int ath6kldev_setup(struct ath6kl_device *dev) /* must be a power of 2 */ if ((dev->htc_cnxt->block_sz & (dev->htc_cnxt->block_sz - 1)) != 0) { WARN_ON(1); + status = -EINVAL; goto fail_setup; } /* assemble mask, used for padding to a block */ dev->htc_cnxt->block_mask = dev->htc_cnxt->block_sz - 1; - ath6kl_dbg(ATH6KL_DBG_TRC, "block size: %d, mbox addr:0x%X\n", + ath6kl_dbg(ATH6KL_DBG_HIF, "hif block size %d mbox addr 0x%x\n", dev->htc_cnxt->block_sz, dev->ar->mbox_info.htc_addr); - ath6kl_dbg(ATH6KL_DBG_TRC, - "hif interrupt processing is sync only\n"); - - status = ath6kldev_disable_intrs(dev); + status = ath6kl_hif_disable_intrs(dev); fail_setup: return status; diff --git a/drivers/net/wireless/ath/ath6kl/hif.h b/drivers/net/wireless/ath/ath6kl/hif.h index 797e2d1d9bf9..f2dc3bcdae4a 100644 --- a/drivers/net/wireless/ath/ath6kl/hif.h +++ b/drivers/net/wireless/ath/ath6kl/hif.h @@ -59,6 +59,18 @@ /* mode to enable special 4-bit interrupt assertion without clock */ #define SDIO_IRQ_MODE_ASYNC_4BIT_IRQ (1 << 0) +/* HTC runs over mailbox 0 */ +#define HTC_MAILBOX 0 + +#define ATH6KL_TARGET_DEBUG_INTR_MASK 0x01 + +/* FIXME: are these duplicates with MAX_SCATTER_ values in hif.h? */ +#define ATH6KL_SCATTER_ENTRIES_PER_REQ 16 +#define ATH6KL_MAX_TRANSFER_SIZE_PER_SCATTER (16 * 1024) +#define ATH6KL_SCATTER_REQS 4 + +#define ATH6KL_HIF_COMMUNICATION_TIMEOUT 1000 + struct bus_request { struct list_head list; @@ -186,6 +198,34 @@ struct hif_scatter_req { struct hif_scatter_item scat_list[1]; }; +struct ath6kl_irq_proc_registers { + u8 host_int_status; + u8 cpu_int_status; + u8 error_int_status; + u8 counter_int_status; + u8 mbox_frame; + u8 rx_lkahd_valid; + u8 host_int_status2; + u8 gmbox_rx_avail; + __le32 rx_lkahd[2]; + __le32 rx_gmbox_lkahd_alias[2]; +} __packed; + +struct ath6kl_irq_enable_reg { + u8 int_status_en; + u8 cpu_int_status_en; + u8 err_int_status_en; + u8 cntr_int_status_en; +} __packed; + +struct ath6kl_device { + spinlock_t lock; + struct ath6kl_irq_proc_registers irq_proc_reg; + struct ath6kl_irq_enable_reg irq_en_reg; + struct htc_target *htc_cnxt; + struct ath6kl *ar; +}; + struct ath6kl_hif_ops { int (*read_write_sync)(struct ath6kl *ar, u32 addr, u8 *buf, u32 len, u32 request); @@ -202,7 +242,26 @@ struct ath6kl_hif_ops { int (*scat_req_rw) (struct ath6kl *ar, struct hif_scatter_req *scat_req); void (*cleanup_scatter)(struct ath6kl *ar); - int (*suspend)(struct ath6kl *ar); + int (*suspend)(struct ath6kl *ar, struct cfg80211_wowlan *wow); + int (*resume)(struct ath6kl *ar); + int (*power_on)(struct ath6kl *ar); + int (*power_off)(struct ath6kl *ar); + void (*stop)(struct ath6kl *ar); }; +int ath6kl_hif_setup(struct ath6kl_device *dev); +int ath6kl_hif_unmask_intrs(struct ath6kl_device *dev); +int ath6kl_hif_mask_intrs(struct ath6kl_device *dev); +int ath6kl_hif_poll_mboxmsg_rx(struct ath6kl_device *dev, + u32 *lk_ahd, int timeout); +int ath6kl_hif_rx_control(struct ath6kl_device *dev, bool enable_rx); +int ath6kl_hif_disable_intrs(struct ath6kl_device *dev); + +int ath6kl_hif_rw_comp_handler(void *context, int status); +int ath6kl_hif_intr_bh_handler(struct ath6kl *ar); + +/* Scatter Function and Definitions */ +int ath6kl_hif_submit_scat_req(struct ath6kl_device *dev, + struct hif_scatter_req *scat_req, bool read); + #endif diff --git a/drivers/net/wireless/ath/ath6kl/htc.c b/drivers/net/wireless/ath/ath6kl/htc.c index f88a7c9e4148..f3b63ca25c7e 100644 --- a/drivers/net/wireless/ath/ath6kl/htc.c +++ b/drivers/net/wireless/ath/ath6kl/htc.c @@ -15,13 +15,321 @@ */ #include "core.h" -#include "htc_hif.h" +#include "hif.h" #include "debug.h" #include "hif-ops.h" #include <asm/unaligned.h> #define CALC_TXRX_PADDED_LEN(dev, len) (__ALIGN_MASK((len), (dev)->block_mask)) +/* Functions for Tx credit handling */ +static void ath6kl_credit_deposit(struct ath6kl_htc_credit_info *cred_info, + struct htc_endpoint_credit_dist *ep_dist, + int credits) +{ + ath6kl_dbg(ATH6KL_DBG_CREDIT, "credit deposit ep %d credits %d\n", + ep_dist->endpoint, credits); + + ep_dist->credits += credits; + ep_dist->cred_assngd += credits; + cred_info->cur_free_credits -= credits; +} + +static void ath6kl_credit_init(struct ath6kl_htc_credit_info *cred_info, + struct list_head *ep_list, + int tot_credits) +{ + struct htc_endpoint_credit_dist *cur_ep_dist; + int count; + + ath6kl_dbg(ATH6KL_DBG_CREDIT, "credit init total %d\n", tot_credits); + + cred_info->cur_free_credits = tot_credits; + cred_info->total_avail_credits = tot_credits; + + list_for_each_entry(cur_ep_dist, ep_list, list) { + if (cur_ep_dist->endpoint == ENDPOINT_0) + continue; + + cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg; + + if (tot_credits > 4) { + if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) || + (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) { + ath6kl_credit_deposit(cred_info, + cur_ep_dist, + cur_ep_dist->cred_min); + cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; + } + } + + if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) { + ath6kl_credit_deposit(cred_info, cur_ep_dist, + cur_ep_dist->cred_min); + /* + * Control service is always marked active, it + * never goes inactive EVER. + */ + cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; + } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC) + /* this is the lowest priority data endpoint */ + /* FIXME: this looks fishy, check */ + cred_info->lowestpri_ep_dist = cur_ep_dist->list; + + /* + * Streams have to be created (explicit | implicit) for all + * kinds of traffic. BE endpoints are also inactive in the + * beginning. When BE traffic starts it creates implicit + * streams that redistributes credits. + * + * Note: all other endpoints have minimums set but are + * initially given NO credits. credits will be distributed + * as traffic activity demands + */ + } + + WARN_ON(cred_info->cur_free_credits <= 0); + + list_for_each_entry(cur_ep_dist, ep_list, list) { + if (cur_ep_dist->endpoint == ENDPOINT_0) + continue; + + if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) + cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg; + else { + /* + * For the remaining data endpoints, we assume that + * each cred_per_msg are the same. We use a simple + * calculation here, we take the remaining credits + * and determine how many max messages this can + * cover and then set each endpoint's normal value + * equal to 3/4 this amount. + */ + count = (cred_info->cur_free_credits / + cur_ep_dist->cred_per_msg) + * cur_ep_dist->cred_per_msg; + count = (count * 3) >> 2; + count = max(count, cur_ep_dist->cred_per_msg); + cur_ep_dist->cred_norm = count; + + } + + ath6kl_dbg(ATH6KL_DBG_CREDIT, + "credit ep %d svc_id %d credits %d per_msg %d norm %d min %d\n", + cur_ep_dist->endpoint, + cur_ep_dist->svc_id, + cur_ep_dist->credits, + cur_ep_dist->cred_per_msg, + cur_ep_dist->cred_norm, + cur_ep_dist->cred_min); + } +} + +/* initialize and setup credit distribution */ +int ath6kl_credit_setup(void *htc_handle, + struct ath6kl_htc_credit_info *cred_info) +{ + u16 servicepriority[5]; + + memset(cred_info, 0, sizeof(struct ath6kl_htc_credit_info)); + + servicepriority[0] = WMI_CONTROL_SVC; /* highest */ + servicepriority[1] = WMI_DATA_VO_SVC; + servicepriority[2] = WMI_DATA_VI_SVC; + servicepriority[3] = WMI_DATA_BE_SVC; + servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */ + + /* set priority list */ + ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5); + + return 0; +} + +/* reduce an ep's credits back to a set limit */ +static void ath6kl_credit_reduce(struct ath6kl_htc_credit_info *cred_info, + struct htc_endpoint_credit_dist *ep_dist, + int limit) +{ + int credits; + + ath6kl_dbg(ATH6KL_DBG_CREDIT, "credit reduce ep %d limit %d\n", + ep_dist->endpoint, limit); + + ep_dist->cred_assngd = limit; + + if (ep_dist->credits <= limit) + return; + + credits = ep_dist->credits - limit; + ep_dist->credits -= credits; + cred_info->cur_free_credits += credits; +} + +static void ath6kl_credit_update(struct ath6kl_htc_credit_info *cred_info, + struct list_head *epdist_list) +{ + struct htc_endpoint_credit_dist *cur_dist_list; + + list_for_each_entry(cur_dist_list, epdist_list, list) { + if (cur_dist_list->endpoint == ENDPOINT_0) + continue; + + if (cur_dist_list->cred_to_dist > 0) { + cur_dist_list->credits += + cur_dist_list->cred_to_dist; + cur_dist_list->cred_to_dist = 0; + if (cur_dist_list->credits > + cur_dist_list->cred_assngd) + ath6kl_credit_reduce(cred_info, + cur_dist_list, + cur_dist_list->cred_assngd); + + if (cur_dist_list->credits > + cur_dist_list->cred_norm) + ath6kl_credit_reduce(cred_info, cur_dist_list, + cur_dist_list->cred_norm); + + if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) { + if (cur_dist_list->txq_depth == 0) + ath6kl_credit_reduce(cred_info, + cur_dist_list, 0); + } + } + } +} + +/* + * HTC has an endpoint that needs credits, ep_dist is the endpoint in + * question. + */ +static void ath6kl_credit_seek(struct ath6kl_htc_credit_info *cred_info, + struct htc_endpoint_credit_dist *ep_dist) +{ + struct htc_endpoint_credit_dist *curdist_list; + int credits = 0; + int need; + + if (ep_dist->svc_id == WMI_CONTROL_SVC) + goto out; + + if ((ep_dist->svc_id == WMI_DATA_VI_SVC) || + (ep_dist->svc_id == WMI_DATA_VO_SVC)) + if ((ep_dist->cred_assngd >= ep_dist->cred_norm)) + goto out; + + /* + * For all other services, we follow a simple algorithm of: + * + * 1. checking the free pool for credits + * 2. checking lower priority endpoints for credits to take + */ + + credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); + + if (credits >= ep_dist->seek_cred) + goto out; + + /* + * We don't have enough in the free pool, try taking away from + * lower priority services The rule for taking away credits: + * + * 1. Only take from lower priority endpoints + * 2. Only take what is allocated above the minimum (never + * starve an endpoint completely) + * 3. Only take what you need. + */ + + list_for_each_entry_reverse(curdist_list, + &cred_info->lowestpri_ep_dist, + list) { + if (curdist_list == ep_dist) + break; + + need = ep_dist->seek_cred - cred_info->cur_free_credits; + + if ((curdist_list->cred_assngd - need) >= + curdist_list->cred_min) { + /* + * The current one has been allocated more than + * it's minimum and it has enough credits assigned + * above it's minimum to fulfill our need try to + * take away just enough to fulfill our need. + */ + ath6kl_credit_reduce(cred_info, curdist_list, + curdist_list->cred_assngd - need); + + if (cred_info->cur_free_credits >= + ep_dist->seek_cred) + break; + } + + if (curdist_list->endpoint == ENDPOINT_0) + break; + } + + credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); + +out: + /* did we find some credits? */ + if (credits) + ath6kl_credit_deposit(cred_info, ep_dist, credits); + + ep_dist->seek_cred = 0; +} + +/* redistribute credits based on activity change */ +static void ath6kl_credit_redistribute(struct ath6kl_htc_credit_info *info, + struct list_head *ep_dist_list) +{ + struct htc_endpoint_credit_dist *curdist_list; + + list_for_each_entry(curdist_list, ep_dist_list, list) { + if (curdist_list->endpoint == ENDPOINT_0) + continue; + + if ((curdist_list->svc_id == WMI_DATA_BK_SVC) || + (curdist_list->svc_id == WMI_DATA_BE_SVC)) + curdist_list->dist_flags |= HTC_EP_ACTIVE; + + if ((curdist_list->svc_id != WMI_CONTROL_SVC) && + !(curdist_list->dist_flags & HTC_EP_ACTIVE)) { + if (curdist_list->txq_depth == 0) + ath6kl_credit_reduce(info, curdist_list, 0); + else + ath6kl_credit_reduce(info, + curdist_list, + curdist_list->cred_min); + } + } +} + +/* + * + * This function is invoked whenever endpoints require credit + * distributions. A lock is held while this function is invoked, this + * function shall NOT block. The ep_dist_list is a list of distribution + * structures in prioritized order as defined by the call to the + * htc_set_credit_dist() api. + */ +static void ath6kl_credit_distribute(struct ath6kl_htc_credit_info *cred_info, + struct list_head *ep_dist_list, + enum htc_credit_dist_reason reason) +{ + switch (reason) { + case HTC_CREDIT_DIST_SEND_COMPLETE: + ath6kl_credit_update(cred_info, ep_dist_list); + break; + case HTC_CREDIT_DIST_ACTIVITY_CHANGE: + ath6kl_credit_redistribute(cred_info, ep_dist_list); + break; + default: + break; + } + + WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits); + WARN_ON(cred_info->cur_free_credits < 0); +} + static void ath6kl_htc_tx_buf_align(u8 **buf, unsigned long len) { u8 *align_addr; @@ -102,12 +410,12 @@ static void htc_tx_comp_update(struct htc_target *target, packet->info.tx.cred_used; endpoint->cred_dist.txq_depth = get_queue_depth(&endpoint->txq); - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:0x%p dist:0x%p\n", - target->cred_dist_cntxt, &target->cred_dist_list); + ath6kl_dbg(ATH6KL_DBG_HTC, "htc tx ctxt 0x%p dist 0x%p\n", + target->credit_info, &target->cred_dist_list); - ath6k_credit_distribute(target->cred_dist_cntxt, - &target->cred_dist_list, - HTC_CREDIT_DIST_SEND_COMPLETE); + ath6kl_credit_distribute(target->credit_info, + &target->cred_dist_list, + HTC_CREDIT_DIST_SEND_COMPLETE); spin_unlock_bh(&target->tx_lock); } @@ -118,8 +426,8 @@ static void htc_tx_complete(struct htc_endpoint *endpoint, if (list_empty(txq)) return; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "send complete ep %d, (%d pkts)\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx complete ep %d pkts %d\n", endpoint->eid, get_queue_depth(txq)); ath6kl_tx_complete(endpoint->target->dev->ar, txq); @@ -131,6 +439,9 @@ static void htc_tx_comp_handler(struct htc_target *target, struct htc_endpoint *endpoint = &target->endpoint[packet->endpoint]; struct list_head container; + ath6kl_dbg(ATH6KL_DBG_HTC, "htc tx complete seqno %d\n", + packet->info.tx.seqno); + htc_tx_comp_update(target, endpoint, packet); INIT_LIST_HEAD(&container); list_add_tail(&packet->list, &container); @@ -148,8 +459,8 @@ static void htc_async_tx_scat_complete(struct htc_target *target, INIT_LIST_HEAD(&tx_compq); - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "htc_async_tx_scat_complete total len: %d entries: %d\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx scat complete len %d entries %d\n", scat_req->len, scat_req->scat_entries); if (scat_req->status) @@ -190,16 +501,13 @@ static int ath6kl_htc_tx_issue(struct htc_target *target, send_len = packet->act_len + HTC_HDR_LENGTH; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "%s: transmit len : %d (%s)\n", - __func__, send_len, sync ? "sync" : "async"); - padded_len = CALC_TXRX_PADDED_LEN(target, send_len); - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "DevSendPacket, padded len: %d mbox:0x%X (mode:%s)\n", - padded_len, - target->dev->ar->mbox_info.htc_addr, - sync ? "sync" : "async"); + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx issue len %d seqno %d padded_len %d mbox 0x%X %s\n", + send_len, packet->info.tx.seqno, padded_len, + target->dev->ar->mbox_info.htc_addr, + sync ? "sync" : "async"); if (sync) { status = hif_read_write_sync(target->dev->ar, @@ -227,7 +535,7 @@ static int htc_check_credits(struct htc_target *target, *req_cred = (len > target->tgt_cred_sz) ? DIV_ROUND_UP(len, target->tgt_cred_sz) : 1; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "creds required:%d got:%d\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, "credit check need %d got %d\n", *req_cred, ep->cred_dist.credits); if (ep->cred_dist.credits < *req_cred) { @@ -237,16 +545,13 @@ static int htc_check_credits(struct htc_target *target, /* Seek more credits */ ep->cred_dist.seek_cred = *req_cred - ep->cred_dist.credits; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:0x%p dist:0x%p\n", - target->cred_dist_cntxt, &ep->cred_dist); - - ath6k_seek_credits(target->cred_dist_cntxt, &ep->cred_dist); + ath6kl_credit_seek(target->credit_info, &ep->cred_dist); ep->cred_dist.seek_cred = 0; if (ep->cred_dist.credits < *req_cred) { - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "not enough credits for ep %d - leaving packet in queue\n", + ath6kl_dbg(ATH6KL_DBG_CREDIT, + "credit not found for ep %d\n", eid); return -EINVAL; } @@ -260,17 +565,15 @@ static int htc_check_credits(struct htc_target *target, ep->cred_dist.seek_cred = ep->cred_dist.cred_per_msg - ep->cred_dist.credits; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:0x%p dist:0x%p\n", - target->cred_dist_cntxt, &ep->cred_dist); - - ath6k_seek_credits(target->cred_dist_cntxt, &ep->cred_dist); + ath6kl_credit_seek(target->credit_info, &ep->cred_dist); /* see if we were successful in getting more */ if (ep->cred_dist.credits < ep->cred_dist.cred_per_msg) { /* tell the target we need credits ASAP! */ *flags |= HTC_FLAGS_NEED_CREDIT_UPDATE; ep->ep_st.cred_low_indicate += 1; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "host needs credits\n"); + ath6kl_dbg(ATH6KL_DBG_CREDIT, + "credit we need credits asap\n"); } } @@ -295,8 +598,8 @@ static void ath6kl_htc_tx_pkts_get(struct htc_target *target, packet = list_first_entry(&endpoint->txq, struct htc_packet, list); - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "got head pkt:0x%p , queue depth: %d\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx got packet 0x%p queue depth %d\n", packet, get_queue_depth(&endpoint->txq)); len = CALC_TXRX_PADDED_LEN(target, @@ -404,9 +707,9 @@ static int ath6kl_htc_tx_setup_scat_list(struct htc_target *target, scat_req->len += len; scat_req->scat_entries++; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "%d, adding pkt : 0x%p len:%d (remaining space:%d)\n", - i, packet, len, rem_scat); + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx adding (%d) pkt 0x%p seqno %d len %d remaining %d\n", + i, packet, packet->info.tx.seqno, len, rem_scat); } /* Roll back scatter setup in case of any failure */ @@ -455,12 +758,12 @@ static void ath6kl_htc_tx_bundle(struct htc_endpoint *endpoint, if (!scat_req) { /* no scatter resources */ - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "no more scatter resources\n"); + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx no more scatter resources\n"); break; } - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "pkts to scatter: %d\n", + ath6kl_dbg(ATH6KL_DBG_HTC, "htc tx pkts to scatter: %d\n", n_scat); scat_req->len = 0; @@ -479,10 +782,10 @@ static void ath6kl_htc_tx_bundle(struct htc_endpoint *endpoint, n_sent_bundle++; tot_pkts_bundle += scat_req->scat_entries; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "send scatter total bytes: %d , entries: %d\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx scatter bytes %d entries %d\n", scat_req->len, scat_req->scat_entries); - ath6kldev_submit_scat_req(target->dev, scat_req, false); + ath6kl_hif_submit_scat_req(target->dev, scat_req, false); if (status) break; @@ -490,8 +793,8 @@ static void ath6kl_htc_tx_bundle(struct htc_endpoint *endpoint, *sent_bundle = n_sent_bundle; *n_bundle_pkts = tot_pkts_bundle; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "%s (sent:%d)\n", - __func__, n_sent_bundle); + ath6kl_dbg(ATH6KL_DBG_HTC, "htc tx bundle sent %d pkts\n", + n_sent_bundle); return; } @@ -510,7 +813,7 @@ static void ath6kl_htc_tx_from_queue(struct htc_target *target, if (endpoint->tx_proc_cnt > 1) { endpoint->tx_proc_cnt--; spin_unlock_bh(&target->tx_lock); - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "htc_try_send (busy)\n"); + ath6kl_dbg(ATH6KL_DBG_HTC, "htc tx busy\n"); return; } @@ -588,15 +891,12 @@ static bool ath6kl_htc_tx_try(struct htc_target *target, overflow = true; if (overflow) - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "ep %d, tx queue will overflow :%d , tx depth:%d, max:%d\n", - endpoint->eid, overflow, txq_depth, + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx overflow ep %d depth %d max %d\n", + endpoint->eid, txq_depth, endpoint->max_txq_depth); if (overflow && ep_cb.tx_full) { - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "indicating overflowed tx packet: 0x%p\n", tx_pkt); - if (ep_cb.tx_full(endpoint->target, tx_pkt) == HTC_SEND_FULL_DROP) { endpoint->ep_st.tx_dropped += 1; @@ -625,12 +925,12 @@ static void htc_chk_ep_txq(struct htc_target *target) * are not modifying any state. */ list_for_each_entry(cred_dist, &target->cred_dist_list, list) { - endpoint = (struct htc_endpoint *)cred_dist->htc_rsvd; + endpoint = cred_dist->htc_ep; spin_lock_bh(&target->tx_lock); if (!list_empty(&endpoint->txq)) { - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "ep %d has %d credits and %d packets in tx queue\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc creds ep %d credits %d pkts %d\n", cred_dist->endpoint, endpoint->cred_dist.credits, get_queue_depth(&endpoint->txq)); @@ -704,13 +1004,13 @@ static int htc_setup_tx_complete(struct htc_target *target) } void ath6kl_htc_set_credit_dist(struct htc_target *target, - struct htc_credit_state_info *cred_dist_cntxt, + struct ath6kl_htc_credit_info *credit_info, u16 srvc_pri_order[], int list_len) { struct htc_endpoint *endpoint; int i, ep; - target->cred_dist_cntxt = cred_dist_cntxt; + target->credit_info = credit_info; list_add_tail(&target->endpoint[ENDPOINT_0].cred_dist.list, &target->cred_dist_list); @@ -736,8 +1036,8 @@ int ath6kl_htc_tx(struct htc_target *target, struct htc_packet *packet) struct htc_endpoint *endpoint; struct list_head queue; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "htc_tx: ep id: %d, buf: 0x%p, len: %d\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx ep id %d buf 0x%p len %d\n", packet->endpoint, packet->buf, packet->act_len); if (packet->endpoint >= ENDPOINT_MAX) { @@ -787,8 +1087,8 @@ void ath6kl_htc_flush_txep(struct htc_target *target, list_for_each_entry_safe(packet, tmp_pkt, &discard_q, list) { packet->status = -ECANCELED; list_del(&packet->list); - ath6kl_dbg(ATH6KL_DBG_TRC, - "flushing tx pkt:0x%p, len:%d, ep:%d tag:0x%X\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx flushing pkt 0x%p len %d ep %d tag 0x%x\n", packet, packet->act_len, packet->endpoint, packet->info.tx.tag); @@ -844,12 +1144,13 @@ void ath6kl_htc_indicate_activity_change(struct htc_target *target, endpoint->cred_dist.txq_depth = get_queue_depth(&endpoint->txq); - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:0x%p dist:0x%p\n", - target->cred_dist_cntxt, &target->cred_dist_list); + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc tx activity ctxt 0x%p dist 0x%p\n", + target->credit_info, &target->cred_dist_list); - ath6k_credit_distribute(target->cred_dist_cntxt, - &target->cred_dist_list, - HTC_CREDIT_DIST_ACTIVITY_CHANGE); + ath6kl_credit_distribute(target->credit_info, + &target->cred_dist_list, + HTC_CREDIT_DIST_ACTIVITY_CHANGE); } spin_unlock_bh(&target->tx_lock); @@ -919,15 +1220,15 @@ static int ath6kl_htc_rx_packet(struct htc_target *target, padded_len = CALC_TXRX_PADDED_LEN(target, rx_len); if (padded_len > packet->buf_len) { - ath6kl_err("not enough receive space for packet - padlen:%d recvlen:%d bufferlen:%d\n", + ath6kl_err("not enough receive space for packet - padlen %d recvlen %d bufferlen %d\n", padded_len, rx_len, packet->buf_len); return -ENOMEM; } - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "dev_rx_pkt (0x%p : hdr:0x%X) padded len: %d mbox:0x%X (mode:%s)\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx 0x%p hdr x%x len %d mbox 0x%x\n", packet, packet->info.rx.exp_hdr, - padded_len, dev->ar->mbox_info.htc_addr, "sync"); + padded_len, dev->ar->mbox_info.htc_addr); status = hif_read_write_sync(dev->ar, dev->ar->mbox_info.htc_addr, @@ -1137,8 +1438,8 @@ static int ath6kl_htc_rx_alloc(struct htc_target *target, } endpoint->ep_st.rx_bundle_from_hdr += 1; - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "htc hdr indicates :%d msg can be fetched as a bundle\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx bundle pkts %d\n", n_msg); } else /* HTC header only indicates 1 message to fetch */ @@ -1191,8 +1492,8 @@ static void htc_ctrl_rx(struct htc_target *context, struct htc_packet *packets) ath6kl_err("htc_ctrl_rx, got message with len:%zu\n", packets->act_len + HTC_HDR_LENGTH); - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, - "Unexpected ENDPOINT 0 Message", "", + ath6kl_dbg_dump(ATH6KL_DBG_HTC, + "htc rx unexpected endpoint 0 message", "", packets->buf - HTC_HDR_LENGTH, packets->act_len + HTC_HDR_LENGTH); } @@ -1209,9 +1510,6 @@ static void htc_proc_cred_rpt(struct htc_target *target, int tot_credits = 0, i; bool dist = false; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "htc_proc_cred_rpt, credit report entries:%d\n", n_entries); - spin_lock_bh(&target->tx_lock); for (i = 0; i < n_entries; i++, rpt++) { @@ -1223,8 +1521,9 @@ static void htc_proc_cred_rpt(struct htc_target *target, endpoint = &target->endpoint[rpt->eid]; - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, " ep %d got %d credits\n", - rpt->eid, rpt->credits); + ath6kl_dbg(ATH6KL_DBG_CREDIT, + "credit report ep %d credits %d\n", + rpt->eid, rpt->credits); endpoint->ep_st.tx_cred_rpt += 1; endpoint->ep_st.cred_retnd += rpt->credits; @@ -1264,21 +1563,14 @@ static void htc_proc_cred_rpt(struct htc_target *target, tot_credits += rpt->credits; } - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, - "report indicated %d credits to distribute\n", - tot_credits); - if (dist) { /* * This was a credit return based on a completed send * operations note, this is done with the lock held */ - ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:0x%p dist:0x%p\n", - target->cred_dist_cntxt, &target->cred_dist_list); - - ath6k_credit_distribute(target->cred_dist_cntxt, - &target->cred_dist_list, - HTC_CREDIT_DIST_SEND_COMPLETE); + ath6kl_credit_distribute(target->credit_info, + &target->cred_dist_list, + HTC_CREDIT_DIST_SEND_COMPLETE); } spin_unlock_bh(&target->tx_lock); @@ -1320,14 +1612,15 @@ static int htc_parse_trailer(struct htc_target *target, if ((lk_ahd->pre_valid == ((~lk_ahd->post_valid) & 0xFF)) && next_lk_ahds) { - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "lk_ahd report found (pre valid:0x%X, post valid:0x%X)\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx lk_ahd found pre_valid 0x%x post_valid 0x%x\n", lk_ahd->pre_valid, lk_ahd->post_valid); /* look ahead bytes are valid, copy them over */ memcpy((u8 *)&next_lk_ahds[0], lk_ahd->lk_ahd, 4); - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "Next Look Ahead", + ath6kl_dbg_dump(ATH6KL_DBG_HTC, + "htc rx next look ahead", "", next_lk_ahds, 4); *n_lk_ahds = 1; @@ -1346,7 +1639,7 @@ static int htc_parse_trailer(struct htc_target *target, bundle_lkahd_rpt = (struct htc_bundle_lkahd_rpt *) record_buf; - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "Bundle lk_ahd", + ath6kl_dbg_dump(ATH6KL_DBG_HTC, "htc rx bundle lk_ahd", "", record_buf, record->len); for (i = 0; i < len; i++) { @@ -1378,10 +1671,8 @@ static int htc_proc_trailer(struct htc_target *target, u8 *record_buf; u8 *orig_buf; - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, "+htc_proc_trailer (len:%d)\n", len); - - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "Recv Trailer", "", - buf, len); + ath6kl_dbg(ATH6KL_DBG_HTC, "htc rx trailer len %d\n", len); + ath6kl_dbg_dump(ATH6KL_DBG_HTC, NULL, "", buf, len); orig_buf = buf; orig_len = len; @@ -1418,7 +1709,7 @@ static int htc_proc_trailer(struct htc_target *target, } if (status) - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "BAD Recv Trailer", + ath6kl_dbg_dump(ATH6KL_DBG_HTC, "htc rx bad trailer", "", orig_buf, orig_len); return status; @@ -1436,9 +1727,6 @@ static int ath6kl_htc_rx_process_hdr(struct htc_target *target, if (n_lkahds != NULL) *n_lkahds = 0; - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "HTC Recv PKT", "htc ", - packet->buf, packet->act_len); - /* * NOTE: we cannot assume the alignment of buf, so we use the safe * macros to retrieve 16 bit fields. @@ -1480,9 +1768,9 @@ static int ath6kl_htc_rx_process_hdr(struct htc_target *target, if (lk_ahd != packet->info.rx.exp_hdr) { ath6kl_err("%s(): lk_ahd mismatch! (pPkt:0x%p flags:0x%X)\n", __func__, packet, packet->info.rx.rx_flags); - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "Expected Message lk_ahd", + ath6kl_dbg_dump(ATH6KL_DBG_HTC, "htc rx expected lk_ahd", "", &packet->info.rx.exp_hdr, 4); - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "Current Frame Header", + ath6kl_dbg_dump(ATH6KL_DBG_HTC, "htc rx current header", "", (u8 *)&lk_ahd, sizeof(lk_ahd)); status = -ENOMEM; goto fail_rx; @@ -1518,15 +1806,8 @@ static int ath6kl_htc_rx_process_hdr(struct htc_target *target, fail_rx: if (status) - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, "BAD HTC Recv PKT", - "", packet->buf, - packet->act_len < 256 ? packet->act_len : 256); - else { - if (packet->act_len > 0) - ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, - "HTC - Application Msg", "", - packet->buf, packet->act_len); - } + ath6kl_dbg_dump(ATH6KL_DBG_HTC, "htc rx bad packet", + "", packet->buf, packet->act_len); return status; } @@ -1534,8 +1815,8 @@ fail_rx: static void ath6kl_htc_rx_complete(struct htc_endpoint *endpoint, struct htc_packet *packet) { - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "htc calling ep %d recv callback on packet 0x%p\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx complete ep %d packet 0x%p\n", endpoint->eid, packet); endpoint->ep_cb.rx(endpoint->target, packet); } @@ -1571,9 +1852,9 @@ static int ath6kl_htc_rx_bundle(struct htc_target *target, len = 0; - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "%s(): (numpackets: %d , actual : %d)\n", - __func__, get_queue_depth(rxq), n_scat_pkt); + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx bundle depth %d pkts %d\n", + get_queue_depth(rxq), n_scat_pkt); scat_req = hif_scatter_req_get(target->dev->ar); @@ -1620,7 +1901,7 @@ static int ath6kl_htc_rx_bundle(struct htc_target *target, scat_req->len = len; scat_req->scat_entries = i; - status = ath6kldev_submit_scat_req(target->dev, scat_req, true); + status = ath6kl_hif_submit_scat_req(target->dev, scat_req, true); if (!status) *n_pkt_fetched = i; @@ -1643,7 +1924,6 @@ static int ath6kl_htc_rx_process_packets(struct htc_target *target, int status = 0; list_for_each_entry_safe(packet, tmp_pkt, comp_pktq, list) { - list_del(&packet->list); ep = &target->endpoint[packet->endpoint]; /* process header for each of the recv packet */ @@ -1652,6 +1932,8 @@ static int ath6kl_htc_rx_process_packets(struct htc_target *target, if (status) return status; + list_del(&packet->list); + if (list_empty(comp_pktq)) { /* * Last packet's more packet flag is set @@ -1686,11 +1968,15 @@ static int ath6kl_htc_rx_fetch(struct htc_target *target, int fetched_pkts; bool part_bundle = false; int status = 0; + struct list_head tmp_rxq; + struct htc_packet *packet, *tmp_pkt; /* now go fetch the list of HTC packets */ while (!list_empty(rx_pktq)) { fetched_pkts = 0; + INIT_LIST_HEAD(&tmp_rxq); + if (target->rx_bndl_enable && (get_queue_depth(rx_pktq) > 1)) { /* * There are enough packets to attempt a @@ -1698,28 +1984,27 @@ static int ath6kl_htc_rx_fetch(struct htc_target *target, * allowed. */ status = ath6kl_htc_rx_bundle(target, rx_pktq, - comp_pktq, + &tmp_rxq, &fetched_pkts, part_bundle); if (status) - return status; + goto fail_rx; if (!list_empty(rx_pktq)) part_bundle = true; + + list_splice_tail_init(&tmp_rxq, comp_pktq); } if (!fetched_pkts) { - struct htc_packet *packet; packet = list_first_entry(rx_pktq, struct htc_packet, list); - list_del(&packet->list); - /* fully synchronous */ packet->completion = NULL; - if (!list_empty(rx_pktq)) + if (!list_is_singular(rx_pktq)) /* * look_aheads in all packet * except the last one in the @@ -1731,18 +2016,42 @@ static int ath6kl_htc_rx_fetch(struct htc_target *target, /* go fetch the packet */ status = ath6kl_htc_rx_packet(target, packet, packet->act_len); + + list_move_tail(&packet->list, &tmp_rxq); + if (status) - return status; + goto fail_rx; - list_add_tail(&packet->list, comp_pktq); + list_splice_tail_init(&tmp_rxq, comp_pktq); } } + return 0; + +fail_rx: + + /* + * Cleanup any packets we allocated but didn't use to + * actually fetch any packets. + */ + + list_for_each_entry_safe(packet, tmp_pkt, rx_pktq, list) { + list_del(&packet->list); + htc_reclaim_rxbuf(target, packet, + &target->endpoint[packet->endpoint]); + } + + list_for_each_entry_safe(packet, tmp_pkt, &tmp_rxq, list) { + list_del(&packet->list); + htc_reclaim_rxbuf(target, packet, + &target->endpoint[packet->endpoint]); + } + return status; } int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target, - u32 msg_look_ahead[], int *num_pkts) + u32 msg_look_ahead, int *num_pkts) { struct htc_packet *packets, *tmp_pkt; struct htc_endpoint *endpoint; @@ -1759,7 +2068,7 @@ int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target, * On first entry copy the look_aheads into our temp array for * processing */ - memcpy(look_aheads, msg_look_ahead, sizeof(look_aheads)); + look_aheads[0] = msg_look_ahead; while (true) { @@ -1827,15 +2136,6 @@ int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target, if (status) { ath6kl_err("failed to get pending recv messages: %d\n", status); - /* - * Cleanup any packets we allocated but didn't use to - * actually fetch any packets. - */ - list_for_each_entry_safe(packets, tmp_pkt, &rx_pktq, list) { - list_del(&packets->list); - htc_reclaim_rxbuf(target, packets, - &target->endpoint[packets->endpoint]); - } /* cleanup any packets in sync completion queue */ list_for_each_entry_safe(packets, tmp_pkt, &comp_pktq, list) { @@ -1846,7 +2146,7 @@ int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target, if (target->htc_flags & HTC_OP_STATE_STOPPING) { ath6kl_warn("host is going to stop blocking receiver for htc_stop\n"); - ath6kldev_rx_control(target->dev, false); + ath6kl_hif_rx_control(target->dev, false); } } @@ -1856,7 +2156,7 @@ int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target, */ if (target->rx_st_flags & HTC_RECV_WAIT_BUFFERS) { ath6kl_warn("host has no rx buffers blocking receiver to prevent overrun\n"); - ath6kldev_rx_control(target->dev, false); + ath6kl_hif_rx_control(target->dev, false); } *num_pkts = n_fetched; @@ -1874,12 +2174,12 @@ static struct htc_packet *htc_wait_for_ctrl_msg(struct htc_target *target) struct htc_frame_hdr *htc_hdr; u32 look_ahead; - if (ath6kldev_poll_mboxmsg_rx(target->dev, &look_ahead, + if (ath6kl_hif_poll_mboxmsg_rx(target->dev, &look_ahead, HTC_TARGET_RESPONSE_TIMEOUT)) return NULL; - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "htc_wait_for_ctrl_msg: look_ahead : 0x%X\n", look_ahead); + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx wait ctrl look_ahead 0x%X\n", look_ahead); htc_hdr = (struct htc_frame_hdr *)&look_ahead; @@ -1943,8 +2243,8 @@ int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target, depth = get_queue_depth(pkt_queue); - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "htc_add_rxbuf_multiple: ep id: %d, cnt:%d, len: %d\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx add multiple ep id %d cnt %d len %d\n", first_pkt->endpoint, depth, first_pkt->buf_len); endpoint = &target->endpoint[first_pkt->endpoint]; @@ -1969,8 +2269,8 @@ int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target, /* check if we are blocked waiting for a new buffer */ if (target->rx_st_flags & HTC_RECV_WAIT_BUFFERS) { if (target->ep_waiting == first_pkt->endpoint) { - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "receiver was blocked on ep:%d, unblocking.\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx blocked on ep %d, unblocking\n", target->ep_waiting); target->rx_st_flags &= ~HTC_RECV_WAIT_BUFFERS; target->ep_waiting = ENDPOINT_MAX; @@ -1982,7 +2282,7 @@ int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target, if (rx_unblock && !(target->htc_flags & HTC_OP_STATE_STOPPING)) /* TODO : implement a buffer threshold count? */ - ath6kldev_rx_control(target->dev, true); + ath6kl_hif_rx_control(target->dev, true); return status; } @@ -2004,8 +2304,8 @@ void ath6kl_htc_flush_rx_buf(struct htc_target *target) &endpoint->rx_bufq, list) { list_del(&packet->list); spin_unlock_bh(&target->rx_lock); - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "flushing rx pkt:0x%p, len:%d, ep:%d\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc rx flush pkt 0x%p len %d ep %d\n", packet, packet->buf_len, packet->endpoint); dev_kfree_skb(packet->pkt_cntxt); @@ -2028,8 +2328,8 @@ int ath6kl_htc_conn_service(struct htc_target *target, unsigned int max_msg_sz = 0; int status = 0; - ath6kl_dbg(ATH6KL_DBG_TRC, - "htc_conn_service, target:0x%p service id:0x%X\n", + ath6kl_dbg(ATH6KL_DBG_HTC, + "htc connect service target 0x%p service id 0x%x\n", target, conn_req->svc_id); if (conn_req->svc_id == HTC_CTRL_RSVD_SVC) { @@ -2115,7 +2415,7 @@ int ath6kl_htc_conn_service(struct htc_target *target, endpoint->len_max = max_msg_sz; endpoint->ep_cb = conn_req->ep_cb; endpoint->cred_dist.svc_id = conn_req->svc_id; - endpoint->cred_dist.htc_rsvd = endpoint; + endpoint->cred_dist.htc_ep = endpoint; endpoint->cred_dist.endpoint = assigned_ep; endpoint->cred_dist.cred_sz = target->tgt_cred_sz; @@ -2172,6 +2472,7 @@ static void reset_ep_state(struct htc_target *target) } /* reset distribution list */ + /* FIXME: free existing entries */ INIT_LIST_HEAD(&target->cred_dist_list); } @@ -2201,8 +2502,8 @@ static void htc_setup_msg_bndl(struct htc_target *target) target->msg_per_bndl_max = min(target->max_scat_entries, target->msg_per_bndl_max); - ath6kl_dbg(ATH6KL_DBG_TRC, - "htc bundling allowed. max msg per htc bundle: %d\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, + "htc bundling allowed msg_per_bndl_max %d\n", target->msg_per_bndl_max); /* Max rx bundle size is limited by the max tx bundle size */ @@ -2211,7 +2512,7 @@ static void htc_setup_msg_bndl(struct htc_target *target) target->max_tx_bndl_sz = min(HIF_MBOX0_EXT_WIDTH, target->max_xfer_szper_scatreq); - ath6kl_dbg(ATH6KL_DBG_ANY, "max recv: %d max send: %d\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, "htc max_rx_bndl_sz %d max_tx_bndl_sz %d\n", target->max_rx_bndl_sz, target->max_tx_bndl_sz); if (target->max_tx_bndl_sz) @@ -2265,8 +2566,8 @@ int ath6kl_htc_wait_target(struct htc_target *target) target->tgt_creds = le16_to_cpu(rdy_msg->ver2_0_info.cred_cnt); target->tgt_cred_sz = le16_to_cpu(rdy_msg->ver2_0_info.cred_sz); - ath6kl_dbg(ATH6KL_DBG_HTC_RECV, - "target ready: credits: %d credit size: %d\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, + "htc target ready credits %d size %d\n", target->tgt_creds, target->tgt_cred_sz); /* check if this is an extended ready message */ @@ -2280,7 +2581,7 @@ int ath6kl_htc_wait_target(struct htc_target *target) target->msg_per_bndl_max = 0; } - ath6kl_dbg(ATH6KL_DBG_TRC, "using htc protocol version : %s (%d)\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, "htc using protocol %s (%d)\n", (target->htc_tgt_ver == HTC_VERSION_2P0) ? "2.0" : ">= 2.1", target->htc_tgt_ver); @@ -2300,6 +2601,10 @@ int ath6kl_htc_wait_target(struct htc_target *target) status = ath6kl_htc_conn_service((void *)target, &connect, &resp); if (status) + /* + * FIXME: this call doesn't make sense, the caller should + * call ath6kl_htc_cleanup() when it wants remove htc + */ ath6kl_hif_cleanup_scatter(target->dev->ar); fail_wait_target: @@ -2320,8 +2625,11 @@ int ath6kl_htc_start(struct htc_target *target) struct htc_packet *packet; int status; + memset(&target->dev->irq_proc_reg, 0, + sizeof(target->dev->irq_proc_reg)); + /* Disable interrupts at the chip level */ - ath6kldev_disable_intrs(target->dev); + ath6kl_hif_disable_intrs(target->dev); target->htc_flags = 0; target->rx_st_flags = 0; @@ -2334,8 +2642,8 @@ int ath6kl_htc_start(struct htc_target *target) } /* NOTE: the first entry in the distribution list is ENDPOINT_0 */ - ath6k_credit_init(target->cred_dist_cntxt, &target->cred_dist_list, - target->tgt_creds); + ath6kl_credit_init(target->credit_info, &target->cred_dist_list, + target->tgt_creds); dump_cred_dist_stats(target); @@ -2346,7 +2654,7 @@ int ath6kl_htc_start(struct htc_target *target) return status; /* unmask interrupts */ - status = ath6kldev_unmask_intrs(target->dev); + status = ath6kl_hif_unmask_intrs(target->dev); if (status) ath6kl_htc_stop(target); @@ -2354,6 +2662,44 @@ int ath6kl_htc_start(struct htc_target *target) return status; } +static int ath6kl_htc_reset(struct htc_target *target) +{ + u32 block_size, ctrl_bufsz; + struct htc_packet *packet; + int i; + + reset_ep_state(target); + + block_size = target->dev->ar->mbox_info.block_size; + + ctrl_bufsz = (block_size > HTC_MAX_CTRL_MSG_LEN) ? + (block_size + HTC_HDR_LENGTH) : + (HTC_MAX_CTRL_MSG_LEN + HTC_HDR_LENGTH); + + for (i = 0; i < NUM_CONTROL_BUFFERS; i++) { + packet = kzalloc(sizeof(*packet), GFP_KERNEL); + if (!packet) + return -ENOMEM; + + packet->buf_start = kzalloc(ctrl_bufsz, GFP_KERNEL); + if (!packet->buf_start) { + kfree(packet); + return -ENOMEM; + } + + packet->buf_len = ctrl_bufsz; + if (i < NUM_CONTROL_RX_BUFFERS) { + packet->act_len = 0; + packet->buf = packet->buf_start; + packet->endpoint = ENDPOINT_0; + list_add_tail(&packet->list, &target->free_ctrl_rxbuf); + } else + list_add_tail(&packet->list, &target->free_ctrl_txbuf); + } + + return 0; +} + /* htc_stop: stop interrupt reception, and flush all queued buffers */ void ath6kl_htc_stop(struct htc_target *target) { @@ -2366,21 +2712,19 @@ void ath6kl_htc_stop(struct htc_target *target) * function returns all pending HIF I/O has completed, we can * safely flush the queues. */ - ath6kldev_mask_intrs(target->dev); + ath6kl_hif_mask_intrs(target->dev); ath6kl_htc_flush_txep_all(target); ath6kl_htc_flush_rx_buf(target); - reset_ep_state(target); + ath6kl_htc_reset(target); } void *ath6kl_htc_create(struct ath6kl *ar) { struct htc_target *target = NULL; - struct htc_packet *packet; - int status = 0, i = 0; - u32 block_size, ctrl_bufsz; + int status = 0; target = kzalloc(sizeof(*target), GFP_KERNEL); if (!target) { @@ -2392,7 +2736,7 @@ void *ath6kl_htc_create(struct ath6kl *ar) if (!target->dev) { ath6kl_err("unable to allocate memory\n"); status = -ENOMEM; - goto fail_create_htc; + goto err_htc_cleanup; } spin_lock_init(&target->htc_lock); @@ -2407,49 +2751,20 @@ void *ath6kl_htc_create(struct ath6kl *ar) target->dev->htc_cnxt = target; target->ep_waiting = ENDPOINT_MAX; - reset_ep_state(target); - - status = ath6kldev_setup(target->dev); - + status = ath6kl_hif_setup(target->dev); if (status) - goto fail_create_htc; - - block_size = ar->mbox_info.block_size; - - ctrl_bufsz = (block_size > HTC_MAX_CTRL_MSG_LEN) ? - (block_size + HTC_HDR_LENGTH) : - (HTC_MAX_CTRL_MSG_LEN + HTC_HDR_LENGTH); - - for (i = 0; i < NUM_CONTROL_BUFFERS; i++) { - packet = kzalloc(sizeof(*packet), GFP_KERNEL); - if (!packet) - break; + goto err_htc_cleanup; - packet->buf_start = kzalloc(ctrl_bufsz, GFP_KERNEL); - if (!packet->buf_start) { - kfree(packet); - break; - } + status = ath6kl_htc_reset(target); + if (status) + goto err_htc_cleanup; - packet->buf_len = ctrl_bufsz; - if (i < NUM_CONTROL_RX_BUFFERS) { - packet->act_len = 0; - packet->buf = packet->buf_start; - packet->endpoint = ENDPOINT_0; - list_add_tail(&packet->list, &target->free_ctrl_rxbuf); - } else - list_add_tail(&packet->list, &target->free_ctrl_txbuf); - } + return target; -fail_create_htc: - if (i != NUM_CONTROL_BUFFERS || status) { - if (target) { - ath6kl_htc_cleanup(target); - target = NULL; - } - } +err_htc_cleanup: + ath6kl_htc_cleanup(target); - return target; + return NULL; } /* cleanup the HTC instance */ diff --git a/drivers/net/wireless/ath/ath6kl/htc.h b/drivers/net/wireless/ath/ath6kl/htc.h index 8ce0c2c07ded..57672e1ed1a6 100644 --- a/drivers/net/wireless/ath/ath6kl/htc.h +++ b/drivers/net/wireless/ath/ath6kl/htc.h @@ -393,7 +393,7 @@ struct htc_endpoint_credit_dist { int cred_per_msg; /* reserved for HTC use */ - void *htc_rsvd; + struct htc_endpoint *htc_ep; /* * current depth of TX queue , i.e. messages waiting for credits @@ -414,9 +414,11 @@ enum htc_credit_dist_reason { HTC_CREDIT_DIST_SEEK_CREDITS, }; -struct htc_credit_state_info { +struct ath6kl_htc_credit_info { int total_avail_credits; int cur_free_credits; + + /* list of lowest priority endpoints */ struct list_head lowestpri_ep_dist; }; @@ -508,10 +510,13 @@ struct ath6kl_device; /* our HTC target state */ struct htc_target { struct htc_endpoint endpoint[ENDPOINT_MAX]; + + /* contains struct htc_endpoint_credit_dist */ struct list_head cred_dist_list; + struct list_head free_ctrl_txbuf; struct list_head free_ctrl_rxbuf; - struct htc_credit_state_info *cred_dist_cntxt; + struct ath6kl_htc_credit_info *credit_info; int tgt_creds; unsigned int tgt_cred_sz; spinlock_t htc_lock; @@ -542,7 +547,7 @@ struct htc_target { void *ath6kl_htc_create(struct ath6kl *ar); void ath6kl_htc_set_credit_dist(struct htc_target *target, - struct htc_credit_state_info *cred_info, + struct ath6kl_htc_credit_info *cred_info, u16 svc_pri_order[], int len); int ath6kl_htc_wait_target(struct htc_target *target); int ath6kl_htc_start(struct htc_target *target); @@ -563,7 +568,10 @@ int ath6kl_htc_get_rxbuf_num(struct htc_target *target, int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target, struct list_head *pktq); int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target, - u32 msg_look_ahead[], int *n_pkts); + u32 msg_look_ahead, int *n_pkts); + +int ath6kl_credit_setup(void *htc_handle, + struct ath6kl_htc_credit_info *cred_info); static inline void set_htc_pkt_info(struct htc_packet *packet, void *context, u8 *buf, unsigned int len, diff --git a/drivers/net/wireless/ath/ath6kl/htc_hif.h b/drivers/net/wireless/ath/ath6kl/htc_hif.h deleted file mode 100644 index 171ad63d89b0..000000000000 --- a/drivers/net/wireless/ath/ath6kl/htc_hif.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright (c) 2007-2011 Atheros Communications Inc. - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef HTC_HIF_H -#define HTC_HIF_H - -#include "htc.h" -#include "hif.h" - -#define ATH6KL_MAILBOXES 4 - -/* HTC runs over mailbox 0 */ -#define HTC_MAILBOX 0 - -#define ATH6KL_TARGET_DEBUG_INTR_MASK 0x01 - -#define OTHER_INTS_ENABLED (INT_STATUS_ENABLE_ERROR_MASK | \ - INT_STATUS_ENABLE_CPU_MASK | \ - INT_STATUS_ENABLE_COUNTER_MASK) - -#define ATH6KL_REG_IO_BUFFER_SIZE 32 -#define ATH6KL_MAX_REG_IO_BUFFERS 8 -#define ATH6KL_SCATTER_ENTRIES_PER_REQ 16 -#define ATH6KL_MAX_TRANSFER_SIZE_PER_SCATTER (16 * 1024) -#define ATH6KL_SCATTER_REQS 4 - -#ifndef A_CACHE_LINE_PAD -#define A_CACHE_LINE_PAD 128 -#endif -#define ATH6KL_MIN_SCATTER_ENTRIES_PER_REQ 2 -#define ATH6KL_MIN_TRANSFER_SIZE_PER_SCATTER (4 * 1024) - -struct ath6kl_irq_proc_registers { - u8 host_int_status; - u8 cpu_int_status; - u8 error_int_status; - u8 counter_int_status; - u8 mbox_frame; - u8 rx_lkahd_valid; - u8 host_int_status2; - u8 gmbox_rx_avail; - __le32 rx_lkahd[2]; - __le32 rx_gmbox_lkahd_alias[2]; -} __packed; - -struct ath6kl_irq_enable_reg { - u8 int_status_en; - u8 cpu_int_status_en; - u8 err_int_status_en; - u8 cntr_int_status_en; -} __packed; - -struct ath6kl_device { - spinlock_t lock; - u8 pad1[A_CACHE_LINE_PAD]; - struct ath6kl_irq_proc_registers irq_proc_reg; - u8 pad2[A_CACHE_LINE_PAD]; - struct ath6kl_irq_enable_reg irq_en_reg; - u8 pad3[A_CACHE_LINE_PAD]; - struct htc_target *htc_cnxt; - struct ath6kl *ar; -}; - -int ath6kldev_setup(struct ath6kl_device *dev); -int ath6kldev_unmask_intrs(struct ath6kl_device *dev); -int ath6kldev_mask_intrs(struct ath6kl_device *dev); -int ath6kldev_poll_mboxmsg_rx(struct ath6kl_device *dev, - u32 *lk_ahd, int timeout); -int ath6kldev_rx_control(struct ath6kl_device *dev, bool enable_rx); -int ath6kldev_disable_intrs(struct ath6kl_device *dev); - -int ath6kldev_rw_comp_handler(void *context, int status); -int ath6kldev_intr_bh_handler(struct ath6kl *ar); - -/* Scatter Function and Definitions */ -int ath6kldev_submit_scat_req(struct ath6kl_device *dev, - struct hif_scatter_req *scat_req, bool read); - -#endif /*ATH6KL_H_ */ diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c index 81e0031012ca..30050af9d4c6 100644 --- a/drivers/net/wireless/ath/ath6kl/init.c +++ b/drivers/net/wireless/ath/ath6kl/init.c @@ -16,6 +16,7 @@ */ #include <linux/moduleparam.h> +#include <linux/errno.h> #include <linux/of.h> #include <linux/mmc/sdio_func.h> #include "core.h" @@ -26,9 +27,11 @@ unsigned int debug_mask; static unsigned int testmode; +static bool suspend_cutpower; module_param(debug_mask, uint, 0644); module_param(testmode, uint, 0644); +module_param(suspend_cutpower, bool, 0444); /* * Include definitions here that can be used to tune the WLAN module @@ -73,37 +76,21 @@ struct sk_buff *ath6kl_buf_alloc(int size) return skb; } -void ath6kl_init_profile_info(struct ath6kl *ar) +void ath6kl_init_profile_info(struct ath6kl_vif *vif) { - ar->ssid_len = 0; - memset(ar->ssid, 0, sizeof(ar->ssid)); - - ar->dot11_auth_mode = OPEN_AUTH; - ar->auth_mode = NONE_AUTH; - ar->prwise_crypto = NONE_CRYPT; - ar->prwise_crypto_len = 0; - ar->grp_crypto = NONE_CRYPT; - ar->grp_crypto_len = 0; - memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); - memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); - memset(ar->bssid, 0, sizeof(ar->bssid)); - ar->bss_ch = 0; - ar->nw_type = ar->next_mode = INFRA_NETWORK; -} - -static u8 ath6kl_get_fw_iftype(struct ath6kl *ar) -{ - switch (ar->nw_type) { - case INFRA_NETWORK: - return HI_OPTION_FW_MODE_BSS_STA; - case ADHOC_NETWORK: - return HI_OPTION_FW_MODE_IBSS; - case AP_NETWORK: - return HI_OPTION_FW_MODE_AP; - default: - ath6kl_err("Unsupported interface type :%d\n", ar->nw_type); - return 0xff; - } + vif->ssid_len = 0; + memset(vif->ssid, 0, sizeof(vif->ssid)); + + vif->dot11_auth_mode = OPEN_AUTH; + vif->auth_mode = NONE_AUTH; + vif->prwise_crypto = NONE_CRYPT; + vif->prwise_crypto_len = 0; + vif->grp_crypto = NONE_CRYPT; + vif->grp_crypto_len = 0; + memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); + memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); + memset(vif->bssid, 0, sizeof(vif->bssid)); + vif->bss_ch = 0; } static int ath6kl_set_host_app_area(struct ath6kl *ar) @@ -120,7 +107,7 @@ static int ath6kl_set_host_app_area(struct ath6kl *ar) return -EIO; address = TARG_VTOP(ar->target_type, data); - host_app_area.wmi_protocol_ver = WMI_PROTOCOL_VERSION; + host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION); if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area, sizeof(struct host_app_area))) return -EIO; @@ -258,40 +245,12 @@ static int ath6kl_init_service_ep(struct ath6kl *ar) return 0; } -static void ath6kl_init_control_info(struct ath6kl *ar) +void ath6kl_init_control_info(struct ath6kl_vif *vif) { - u8 ctr; - - clear_bit(WMI_ENABLED, &ar->flag); - ath6kl_init_profile_info(ar); - ar->def_txkey_index = 0; - memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); - ar->ch_hint = 0; - ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL; - ar->listen_intvl_b = 0; - ar->tx_pwr = 0; - clear_bit(SKIP_SCAN, &ar->flag); - set_bit(WMM_ENABLED, &ar->flag); - ar->intra_bss = 1; - memset(&ar->sc_params, 0, sizeof(ar->sc_params)); - ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT; - ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS; - ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; - - memset((u8 *)ar->sta_list, 0, - AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); - - spin_lock_init(&ar->mcastpsq_lock); - - /* Init the PS queues */ - for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { - spin_lock_init(&ar->sta_list[ctr].psq_lock); - skb_queue_head_init(&ar->sta_list[ctr].psq); - } - - skb_queue_head_init(&ar->mcastpsq); - - memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); + ath6kl_init_profile_info(vif); + vif->def_txkey_index = 0; + memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); + vif->ch_hint = 0; } /* @@ -341,62 +300,7 @@ out: return status; } -#define REG_DUMP_COUNT_AR6003 60 -#define REGISTER_DUMP_LEN_MAX 60 - -static void ath6kl_dump_target_assert_info(struct ath6kl *ar) -{ - u32 address; - u32 regdump_loc = 0; - int status; - u32 regdump_val[REGISTER_DUMP_LEN_MAX]; - u32 i; - - if (ar->target_type != TARGET_TYPE_AR6003) - return; - - /* the reg dump pointer is copied to the host interest area */ - address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state)); - address = TARG_VTOP(ar->target_type, address); - - /* read RAM location through diagnostic window */ - status = ath6kl_diag_read32(ar, address, ®dump_loc); - - if (status || !regdump_loc) { - ath6kl_err("failed to get ptr to register dump area\n"); - return; - } - - ath6kl_dbg(ATH6KL_DBG_TRC, "location of register dump data: 0x%X\n", - regdump_loc); - regdump_loc = TARG_VTOP(ar->target_type, regdump_loc); - - /* fetch register dump data */ - status = ath6kl_diag_read(ar, regdump_loc, (u8 *)®dump_val[0], - REG_DUMP_COUNT_AR6003 * (sizeof(u32))); - - if (status) { - ath6kl_err("failed to get register dump\n"); - return; - } - ath6kl_dbg(ATH6KL_DBG_TRC, "Register Dump:\n"); - - for (i = 0; i < REG_DUMP_COUNT_AR6003; i++) - ath6kl_dbg(ATH6KL_DBG_TRC, " %d : 0x%8.8X\n", - i, regdump_val[i]); - -} - -void ath6kl_target_failure(struct ath6kl *ar) -{ - ath6kl_err("target asserted\n"); - - /* try dumping target assertion information (if any) */ - ath6kl_dump_target_assert_info(ar); - -} - -static int ath6kl_target_config_wlan_params(struct ath6kl *ar) +static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx) { int status = 0; int ret; @@ -406,46 +310,50 @@ static int ath6kl_target_config_wlan_params(struct ath6kl *ar) * default values. Required if checksum offload is needed. Set * RxMetaVersion to 2. */ - if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, + if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx, ar->rx_meta_ver, 0, 0)) { ath6kl_err("unable to set the rx frame format\n"); status = -EIO; } if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN) - if ((ath6kl_wmi_pmparams_cmd(ar->wmi, 0, 1, 0, 0, 1, + if ((ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1, IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) { ath6kl_err("unable to set power save fail event policy\n"); status = -EIO; } if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER)) - if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, 0, + if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0, WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) { ath6kl_err("unable to set barker preamble policy\n"); status = -EIO; } - if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, + if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx, WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) { ath6kl_err("unable to set keep alive interval\n"); status = -EIO; } - if (ath6kl_wmi_disctimeout_cmd(ar->wmi, + if (ath6kl_wmi_disctimeout_cmd(ar->wmi, idx, WLAN_CONFIG_DISCONNECT_TIMEOUT)) { ath6kl_err("unable to set disconnect timeout\n"); status = -EIO; } if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST)) - if (ath6kl_wmi_set_wmm_txop(ar->wmi, WMI_TXOP_DISABLED)) { + if (ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED)) { ath6kl_err("unable to set txop bursting\n"); status = -EIO; } + /* + * FIXME: Make sure p2p configurations are not applied to + * non-p2p capable interfaces when multivif support is enabled. + */ if (ar->p2p) { - ret = ath6kl_wmi_info_req_cmd(ar->wmi, + ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx, P2P_FLAG_CAPABILITIES_REQ | P2P_FLAG_MACADDR_REQ | P2P_FLAG_HMODEL_REQ); @@ -457,9 +365,13 @@ static int ath6kl_target_config_wlan_params(struct ath6kl *ar) } } + /* + * FIXME: Make sure p2p configurations are not applied to + * non-p2p capable interfaces when multivif support is enabled. + */ if (ar->p2p) { /* Enable Probe Request reporting for P2P */ - ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, true); + ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true); if (ret) { ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe " "Request reporting (%d)\n", ret); @@ -472,13 +384,44 @@ static int ath6kl_target_config_wlan_params(struct ath6kl *ar) int ath6kl_configure_target(struct ath6kl *ar) { u32 param, ram_reserved_size; - u8 fw_iftype; + u8 fw_iftype, fw_mode = 0, fw_submode = 0; + int i; - fw_iftype = ath6kl_get_fw_iftype(ar); - if (fw_iftype == 0xff) - return -EINVAL; + /* + * Note: Even though the firmware interface type is + * chosen as BSS_STA for all three interfaces, can + * be configured to IBSS/AP as long as the fw submode + * remains normal mode (0 - AP, STA and IBSS). But + * due to an target assert in firmware only one interface is + * configured for now. + */ + fw_iftype = HI_OPTION_FW_MODE_BSS_STA; + + for (i = 0; i < MAX_NUM_VIF; i++) + fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS); + + /* + * By default, submodes : + * vif[0] - AP/STA/IBSS + * vif[1] - "P2P dev"/"P2P GO"/"P2P Client" + * vif[2] - "P2P dev"/"P2P GO"/"P2P Client" + */ + + for (i = 0; i < ar->max_norm_iface; i++) + fw_submode |= HI_OPTION_FW_SUBMODE_NONE << + (i * HI_OPTION_FW_SUBMODE_BITS); + + for (i = ar->max_norm_iface; i < MAX_NUM_VIF; i++) + fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV << + (i * HI_OPTION_FW_SUBMODE_BITS); + + /* + * FIXME: This needs to be removed once the multivif + * support is enabled. + */ + if (ar->p2p) + fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV; - /* Tell target which HTC version it is used*/ param = HTC_PROTOCOL_VERSION; if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar, @@ -499,12 +442,10 @@ int ath6kl_configure_target(struct ath6kl *ar) return -EIO; } - param |= (1 << HI_OPTION_NUM_DEV_SHIFT); - param |= (fw_iftype << HI_OPTION_FW_MODE_SHIFT); - if (ar->p2p && fw_iftype == HI_OPTION_FW_MODE_BSS_STA) { - param |= HI_OPTION_FW_SUBMODE_P2PDEV << - HI_OPTION_FW_SUBMODE_SHIFT; - } + param |= (MAX_NUM_VIF << HI_OPTION_NUM_DEV_SHIFT); + param |= fw_mode << HI_OPTION_FW_MODE_SHIFT; + param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT; + param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT); param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT); @@ -553,68 +494,34 @@ int ath6kl_configure_target(struct ath6kl *ar) return 0; } -struct ath6kl *ath6kl_core_alloc(struct device *sdev) +void ath6kl_core_free(struct ath6kl *ar) { - struct net_device *dev; - struct ath6kl *ar; - struct wireless_dev *wdev; - - wdev = ath6kl_cfg80211_init(sdev); - if (!wdev) { - ath6kl_err("ath6kl_cfg80211_init failed\n"); - return NULL; - } - - ar = wdev_priv(wdev); - ar->dev = sdev; - ar->wdev = wdev; - wdev->iftype = NL80211_IFTYPE_STATION; - - if (ath6kl_debug_init(ar)) { - ath6kl_err("Failed to initialize debugfs\n"); - ath6kl_cfg80211_deinit(ar); - return NULL; - } - - dev = alloc_netdev(0, "wlan%d", ether_setup); - if (!dev) { - ath6kl_err("no memory for network device instance\n"); - ath6kl_cfg80211_deinit(ar); - return NULL; - } - - dev->ieee80211_ptr = wdev; - SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy)); - wdev->netdev = dev; - ar->sme_state = SME_DISCONNECTED; - - init_netdev(dev); + wiphy_free(ar->wiphy); +} - ar->net_dev = dev; - set_bit(WLAN_ENABLED, &ar->flag); +void ath6kl_core_cleanup(struct ath6kl *ar) +{ + ath6kl_hif_power_off(ar); - ar->wlan_pwr_state = WLAN_POWER_STATE_ON; + destroy_workqueue(ar->ath6kl_wq); - spin_lock_init(&ar->lock); + if (ar->htc_target) + ath6kl_htc_cleanup(ar->htc_target); - ath6kl_init_control_info(ar); - init_waitqueue_head(&ar->event_wq); - sema_init(&ar->sem, 1); - clear_bit(DESTROY_IN_PROGRESS, &ar->flag); + ath6kl_cookie_cleanup(ar); - INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); + ath6kl_cleanup_amsdu_rxbufs(ar); - setup_timer(&ar->disconnect_timer, disconnect_timer_handler, - (unsigned long) dev); + ath6kl_bmi_cleanup(ar); - return ar; -} + ath6kl_debug_cleanup(ar); -int ath6kl_unavail_ev(struct ath6kl *ar) -{ - ath6kl_destroy(ar->net_dev, 1); + kfree(ar->fw_board); + kfree(ar->fw_otp); + kfree(ar->fw); + kfree(ar->fw_patch); - return 0; + ath6kl_deinit_ieee80211_hw(ar); } /* firmware upload */ @@ -1182,6 +1089,7 @@ static int ath6kl_upload_board_file(struct ath6kl *ar) static int ath6kl_upload_otp(struct ath6kl *ar) { u32 address, param; + bool from_hw = false; int ret; if (WARN_ON(ar->fw_otp == NULL)) @@ -1210,15 +1118,20 @@ static int ath6kl_upload_otp(struct ath6kl *ar) return ret; } - ar->hw.app_start_override_addr = address; + if (ar->hw.app_start_override_addr == 0) { + ar->hw.app_start_override_addr = address; + from_hw = true; + } - ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr 0x%x\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n", + from_hw ? " (from hw)" : "", ar->hw.app_start_override_addr); /* execute the OTP code */ - ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n", address); + ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n", + ar->hw.app_start_override_addr); param = 0; - ath6kl_bmi_execute(ar, address, ¶m); + ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, ¶m); return ret; } @@ -1420,6 +1333,10 @@ static int ath6kl_init_hw_params(struct ath6kl *ar) ar->hw.app_load_addr = AR6003_REV2_APP_LOAD_ADDRESS; ar->hw.board_ext_data_addr = AR6003_REV2_BOARD_EXT_DATA_ADDRESS; ar->hw.reserved_ram_size = AR6003_REV2_RAM_RESERVE_SIZE; + + /* hw2.0 needs override address hardcoded */ + ar->hw.app_start_override_addr = 0x944C00; + break; case AR6003_REV3_VERSION: ar->hw.dataset_patch_addr = AR6003_REV3_DATASET_PATCH_ADDRESS; @@ -1451,71 +1368,56 @@ static int ath6kl_init_hw_params(struct ath6kl *ar) return 0; } -static int ath6kl_init(struct net_device *dev) +int ath6kl_init_hw_start(struct ath6kl *ar) { - struct ath6kl *ar = ath6kl_priv(dev); - int status = 0; - s32 timeleft; + long timeleft; + int ret, i; - if (!ar) - return -EIO; + ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n"); + + ret = ath6kl_hif_power_on(ar); + if (ret) + return ret; + + ret = ath6kl_configure_target(ar); + if (ret) + goto err_power_off; + + ret = ath6kl_init_upload(ar); + if (ret) + goto err_power_off; /* Do we need to finish the BMI phase */ + /* FIXME: return error from ath6kl_bmi_done() */ if (ath6kl_bmi_done(ar)) { - status = -EIO; - goto ath6kl_init_done; + ret = -EIO; + goto err_power_off; } - /* Indicate that WMI is enabled (although not ready yet) */ - set_bit(WMI_ENABLED, &ar->flag); - ar->wmi = ath6kl_wmi_init(ar); - if (!ar->wmi) { - ath6kl_err("failed to initialize wmi\n"); - status = -EIO; - goto ath6kl_init_done; - } - - ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); - /* * The reason we have to wait for the target here is that the * driver layer has to init BMI in order to set the host block * size. */ if (ath6kl_htc_wait_target(ar->htc_target)) { - status = -EIO; - goto err_node_cleanup; + ret = -EIO; + goto err_power_off; } if (ath6kl_init_service_ep(ar)) { - status = -EIO; + ret = -EIO; goto err_cleanup_scatter; } - /* setup access class priority mappings */ - ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ - ar->ac_stream_pri_map[WMM_AC_BE] = 1; - ar->ac_stream_pri_map[WMM_AC_VI] = 2; - ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ - - /* give our connected endpoints some buffers */ - ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); - ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); - - /* allocate some buffers that handle larger AMSDU frames */ - ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); - /* setup credit distribution */ - ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info); - - ath6kl_cookie_init(ar); + ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info); /* start HTC */ - status = ath6kl_htc_start(ar->htc_target); - - if (status) { + ret = ath6kl_htc_start(ar->htc_target); + if (ret) { + /* FIXME: call this */ ath6kl_cookie_cleanup(ar); - goto err_rxbuf_cleanup; + goto err_cleanup_scatter; } /* Wait for Wmi event to be ready */ @@ -1529,52 +1431,69 @@ static int ath6kl_init(struct net_device *dev) if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", ATH6KL_ABI_VERSION, ar->version.abi_ver); - status = -EIO; + ret = -EIO; goto err_htc_stop; } if (!timeleft || signal_pending(current)) { ath6kl_err("wmi is not ready or wait was interrupted\n"); - status = -EIO; + ret = -EIO; goto err_htc_stop; } ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); /* communicate the wmi protocol verision to the target */ + /* FIXME: return error */ if ((ath6kl_set_host_app_area(ar)) != 0) ath6kl_err("unable to set the host app area\n"); - ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | - ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; + for (i = 0; i < MAX_NUM_VIF; i++) { + ret = ath6kl_target_config_wlan_params(ar, i); + if (ret) + goto err_htc_stop; + } - ar->wdev->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | - WIPHY_FLAG_HAVE_AP_SME; + ar->state = ATH6KL_STATE_ON; - status = ath6kl_target_config_wlan_params(ar); - if (!status) - goto ath6kl_init_done; + return 0; err_htc_stop: ath6kl_htc_stop(ar->htc_target); -err_rxbuf_cleanup: - ath6kl_htc_flush_rx_buf(ar->htc_target); - ath6kl_cleanup_amsdu_rxbufs(ar); err_cleanup_scatter: ath6kl_hif_cleanup_scatter(ar); -err_node_cleanup: - ath6kl_wmi_shutdown(ar->wmi); - clear_bit(WMI_ENABLED, &ar->flag); - ar->wmi = NULL; +err_power_off: + ath6kl_hif_power_off(ar); -ath6kl_init_done: - return status; + return ret; +} + +int ath6kl_init_hw_stop(struct ath6kl *ar) +{ + int ret; + + ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n"); + + ath6kl_htc_stop(ar->htc_target); + + ath6kl_hif_stop(ar); + + ath6kl_bmi_reset(ar); + + ret = ath6kl_hif_power_off(ar); + if (ret) + ath6kl_warn("failed to power off hif: %d\n", ret); + + ar->state = ATH6KL_STATE_OFF; + + return 0; } int ath6kl_core_init(struct ath6kl *ar) { - int ret = 0; struct ath6kl_bmi_target_info targ_info; + struct net_device *ndev; + int ret = 0, i; ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); if (!ar->ath6kl_wq) @@ -1584,145 +1503,226 @@ int ath6kl_core_init(struct ath6kl *ar) if (ret) goto err_wq; - ret = ath6kl_bmi_get_target_info(ar, &targ_info); + /* + * Turn on power to get hardware (target) version and leave power + * on delibrately as we will boot the hardware anyway within few + * seconds. + */ + ret = ath6kl_hif_power_on(ar); if (ret) goto err_bmi_cleanup; + ret = ath6kl_bmi_get_target_info(ar, &targ_info); + if (ret) + goto err_power_off; + ar->version.target_ver = le32_to_cpu(targ_info.version); ar->target_type = le32_to_cpu(targ_info.type); - ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version); + ar->wiphy->hw_version = le32_to_cpu(targ_info.version); ret = ath6kl_init_hw_params(ar); if (ret) - goto err_bmi_cleanup; - - ret = ath6kl_configure_target(ar); - if (ret) - goto err_bmi_cleanup; + goto err_power_off; ar->htc_target = ath6kl_htc_create(ar); if (!ar->htc_target) { ret = -ENOMEM; - goto err_bmi_cleanup; - } - - ar->aggr_cntxt = aggr_init(ar->net_dev); - if (!ar->aggr_cntxt) { - ath6kl_err("failed to initialize aggr\n"); - ret = -ENOMEM; - goto err_htc_cleanup; + goto err_power_off; } ret = ath6kl_fetch_firmwares(ar); if (ret) goto err_htc_cleanup; - ret = ath6kl_init_upload(ar); - if (ret) + /* FIXME: we should free all firmwares in the error cases below */ + + /* Indicate that WMI is enabled (although not ready yet) */ + set_bit(WMI_ENABLED, &ar->flag); + ar->wmi = ath6kl_wmi_init(ar); + if (!ar->wmi) { + ath6kl_err("failed to initialize wmi\n"); + ret = -EIO; goto err_htc_cleanup; + } - ret = ath6kl_init(ar->net_dev); + ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); + + ret = ath6kl_register_ieee80211_hw(ar); if (ret) - goto err_htc_cleanup; + goto err_node_cleanup; - /* This runs the init function if registered */ - ret = register_netdev(ar->net_dev); + ret = ath6kl_debug_init(ar); if (ret) { - ath6kl_err("register_netdev failed\n"); - ath6kl_destroy(ar->net_dev, 0); - return ret; + wiphy_unregister(ar->wiphy); + goto err_node_cleanup; + } + + for (i = 0; i < MAX_NUM_VIF; i++) + ar->avail_idx_map |= BIT(i); + + rtnl_lock(); + + /* Add an initial station interface */ + ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0, + INFRA_NETWORK); + + rtnl_unlock(); + + if (!ndev) { + ath6kl_err("Failed to instantiate a network device\n"); + ret = -ENOMEM; + wiphy_unregister(ar->wiphy); + goto err_debug_init; } - set_bit(NETDEV_REGISTERED, &ar->flag); ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", - __func__, ar->net_dev->name, ar->net_dev, ar); + __func__, ndev->name, ndev, ar); + + /* setup access class priority mappings */ + ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ + ar->ac_stream_pri_map[WMM_AC_BE] = 1; + ar->ac_stream_pri_map[WMM_AC_VI] = 2; + ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ + + /* give our connected endpoints some buffers */ + ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); + ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); + + /* allocate some buffers that handle larger AMSDU frames */ + ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); + + ath6kl_cookie_init(ar); + + ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | + ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; + + if (suspend_cutpower) + ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER; + + ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | + WIPHY_FLAG_HAVE_AP_SME | + WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; + + set_bit(FIRST_BOOT, &ar->flag); + + ret = ath6kl_init_hw_start(ar); + if (ret) { + ath6kl_err("Failed to start hardware: %d\n", ret); + goto err_rxbuf_cleanup; + } + + /* + * Set mac address which is received in ready event + * FIXME: Move to ath6kl_interface_add() + */ + memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); return ret; +err_rxbuf_cleanup: + ath6kl_htc_flush_rx_buf(ar->htc_target); + ath6kl_cleanup_amsdu_rxbufs(ar); + rtnl_lock(); + ath6kl_deinit_if_data(netdev_priv(ndev)); + rtnl_unlock(); + wiphy_unregister(ar->wiphy); +err_debug_init: + ath6kl_debug_cleanup(ar); +err_node_cleanup: + ath6kl_wmi_shutdown(ar->wmi); + clear_bit(WMI_ENABLED, &ar->flag); + ar->wmi = NULL; err_htc_cleanup: ath6kl_htc_cleanup(ar->htc_target); +err_power_off: + ath6kl_hif_power_off(ar); err_bmi_cleanup: ath6kl_bmi_cleanup(ar); err_wq: destroy_workqueue(ar->ath6kl_wq); + return ret; } -void ath6kl_stop_txrx(struct ath6kl *ar) +void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready) { - struct net_device *ndev = ar->net_dev; + static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + bool discon_issued; - if (!ndev) - return; + netif_stop_queue(vif->ndev); - set_bit(DESTROY_IN_PROGRESS, &ar->flag); + clear_bit(WLAN_ENABLED, &vif->flags); - if (down_interruptible(&ar->sem)) { - ath6kl_err("down_interruptible failed\n"); - return; - } + if (wmi_ready) { + discon_issued = test_bit(CONNECTED, &vif->flags) || + test_bit(CONNECT_PEND, &vif->flags); + ath6kl_disconnect(vif); + del_timer(&vif->disconnect_timer); - if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR) - ath6kl_stop_endpoint(ndev, false, true); + if (discon_issued) + ath6kl_disconnect_event(vif, DISCONNECT_CMD, + (vif->nw_type & AP_NETWORK) ? + bcast_mac : vif->bssid, + 0, NULL, 0); + } - clear_bit(WLAN_ENABLED, &ar->flag); + if (vif->scan_req) { + cfg80211_scan_done(vif->scan_req, true); + vif->scan_req = NULL; + } } -/* - * We need to differentiate between the surprise and planned removal of the - * device because of the following consideration: - * - * - In case of surprise removal, the hcd already frees up the pending - * for the device and hence there is no need to unregister the function - * driver inorder to get these requests. For planned removal, the function - * driver has to explicitly unregister itself to have the hcd return all the - * pending requests before the data structures for the devices are freed up. - * Note that as per the current implementation, the function driver will - * end up releasing all the devices since there is no API to selectively - * release a particular device. - * - * - Certain commands issued to the target can be skipped for surprise - * removal since they will anyway not go through. - */ -void ath6kl_destroy(struct net_device *dev, unsigned int unregister) +void ath6kl_stop_txrx(struct ath6kl *ar) { - struct ath6kl *ar; + struct ath6kl_vif *vif, *tmp_vif; - if (!dev || !ath6kl_priv(dev)) { - ath6kl_err("failed to get device structure\n"); + set_bit(DESTROY_IN_PROGRESS, &ar->flag); + + if (down_interruptible(&ar->sem)) { + ath6kl_err("down_interruptible failed\n"); return; } - ar = ath6kl_priv(dev); - - destroy_workqueue(ar->ath6kl_wq); - - if (ar->htc_target) - ath6kl_htc_cleanup(ar->htc_target); - - aggr_module_destroy(ar->aggr_cntxt); - - ath6kl_cookie_cleanup(ar); - - ath6kl_cleanup_amsdu_rxbufs(ar); + spin_lock_bh(&ar->list_lock); + list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) { + list_del(&vif->list); + spin_unlock_bh(&ar->list_lock); + ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag)); + rtnl_lock(); + ath6kl_deinit_if_data(vif); + rtnl_unlock(); + spin_lock_bh(&ar->list_lock); + } + spin_unlock_bh(&ar->list_lock); - ath6kl_bmi_cleanup(ar); + clear_bit(WMI_READY, &ar->flag); - ath6kl_debug_cleanup(ar); + /* + * After wmi_shudown all WMI events will be dropped. We + * need to cleanup the buffers allocated in AP mode and + * give disconnect notification to stack, which usually + * happens in the disconnect_event. Simulate the disconnect + * event by calling the function directly. Sometimes + * disconnect_event will be received when the debug logs + * are collected. + */ + ath6kl_wmi_shutdown(ar->wmi); - if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) { - unregister_netdev(dev); - clear_bit(NETDEV_REGISTERED, &ar->flag); + clear_bit(WMI_ENABLED, &ar->flag); + if (ar->htc_target) { + ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__); + ath6kl_htc_stop(ar->htc_target); } - free_netdev(dev); - - kfree(ar->fw_board); - kfree(ar->fw_otp); - kfree(ar->fw); - kfree(ar->fw_patch); + /* + * Try to reset the device if we can. The driver may have been + * configure NOT to reset the target during a debug session. + */ + ath6kl_dbg(ATH6KL_DBG_TRC, + "attempting to reset target on instance destroy\n"); + ath6kl_reset_device(ar, ar->target_type, true, true); - ath6kl_cfg80211_deinit(ar); + clear_bit(WLAN_ENABLED, &ar->flag); } diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c index 30b5a53db9ed..5e5f4ca8f3f0 100644 --- a/drivers/net/wireless/ath/ath6kl/main.c +++ b/drivers/net/wireless/ath/ath6kl/main.c @@ -20,12 +20,13 @@ #include "target.h" #include "debug.h" -struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 *node_addr) +struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr) { + struct ath6kl *ar = vif->ar; struct ath6kl_sta *conn = NULL; u8 i, max_conn; - max_conn = (ar->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; + max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; for (i = 0; i < max_conn; i++) { if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { @@ -393,8 +394,8 @@ out: #define AR6003_RESET_CONTROL_ADDRESS 0x00004000 #define AR6004_RESET_CONTROL_ADDRESS 0x00004000 -static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, - bool wait_fot_compltn, bool cold_reset) +void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, + bool wait_fot_compltn, bool cold_reset) { int status = 0; u32 address; @@ -425,102 +426,33 @@ static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, ath6kl_err("failed to reset target\n"); } -void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile, - bool get_dbglogs) -{ - struct ath6kl *ar = ath6kl_priv(dev); - static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; - bool discon_issued; - - netif_stop_queue(dev); - - /* disable the target and the interrupts associated with it */ - if (test_bit(WMI_READY, &ar->flag)) { - discon_issued = (test_bit(CONNECTED, &ar->flag) || - test_bit(CONNECT_PEND, &ar->flag)); - ath6kl_disconnect(ar); - if (!keep_profile) - ath6kl_init_profile_info(ar); - - del_timer(&ar->disconnect_timer); - - clear_bit(WMI_READY, &ar->flag); - ath6kl_wmi_shutdown(ar->wmi); - clear_bit(WMI_ENABLED, &ar->flag); - ar->wmi = NULL; - - /* - * After wmi_shudown all WMI events will be dropped. We - * need to cleanup the buffers allocated in AP mode and - * give disconnect notification to stack, which usually - * happens in the disconnect_event. Simulate the disconnect - * event by calling the function directly. Sometimes - * disconnect_event will be received when the debug logs - * are collected. - */ - if (discon_issued) - ath6kl_disconnect_event(ar, DISCONNECT_CMD, - (ar->nw_type & AP_NETWORK) ? - bcast_mac : ar->bssid, - 0, NULL, 0); - - ar->user_key_ctrl = 0; - - } else { - ath6kl_dbg(ATH6KL_DBG_TRC, - "%s: wmi is not ready 0x%p 0x%p\n", - __func__, ar, ar->wmi); - - /* Shut down WMI if we have started it */ - if (test_bit(WMI_ENABLED, &ar->flag)) { - ath6kl_dbg(ATH6KL_DBG_TRC, - "%s: shut down wmi\n", __func__); - ath6kl_wmi_shutdown(ar->wmi); - clear_bit(WMI_ENABLED, &ar->flag); - ar->wmi = NULL; - } - } - - if (ar->htc_target) { - ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__); - ath6kl_htc_stop(ar->htc_target); - } - - /* - * Try to reset the device if we can. The driver may have been - * configure NOT to reset the target during a debug session. - */ - ath6kl_dbg(ATH6KL_DBG_TRC, - "attempting to reset target on instance destroy\n"); - ath6kl_reset_device(ar, ar->target_type, true, true); -} - -static void ath6kl_install_static_wep_keys(struct ath6kl *ar) +static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) { u8 index; u8 keyusage; for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) { - if (ar->wep_key_list[index].key_len) { + if (vif->wep_key_list[index].key_len) { keyusage = GROUP_USAGE; - if (index == ar->def_txkey_index) + if (index == vif->def_txkey_index) keyusage |= TX_USAGE; - ath6kl_wmi_addkey_cmd(ar->wmi, + ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, index, WEP_CRYPT, keyusage, - ar->wep_key_list[index].key_len, - NULL, - ar->wep_key_list[index].key, + vif->wep_key_list[index].key_len, + NULL, 0, + vif->wep_key_list[index].key, KEY_OP_INIT_VAL, NULL, NO_SYNC_WMIFLAG); } } } -void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel) +void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) { + struct ath6kl *ar = vif->ar; struct ath6kl_req_key *ik; int res; u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; @@ -529,10 +461,10 @@ void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel) ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); - switch (ar->auth_mode) { + switch (vif->auth_mode) { case NONE_AUTH: - if (ar->prwise_crypto == WEP_CRYPT) - ath6kl_install_static_wep_keys(ar); + if (vif->prwise_crypto == WEP_CRYPT) + ath6kl_install_static_wep_keys(vif); break; case WPA_PSK_AUTH: case WPA2_PSK_AUTH: @@ -544,8 +476,9 @@ void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel) "the initial group key for AP mode\n"); memset(key_rsc, 0, sizeof(key_rsc)); res = ath6kl_wmi_addkey_cmd( - ar->wmi, ik->key_index, ik->key_type, - GROUP_USAGE, ik->key_len, key_rsc, ik->key, + ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, + GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN, + ik->key, KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); if (res) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed " @@ -554,15 +487,16 @@ void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel) break; } - ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); - set_bit(CONNECTED, &ar->flag); - netif_carrier_on(ar->net_dev); + ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); + set_bit(CONNECTED, &vif->flags); + netif_carrier_on(vif->ndev); } -void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr, +void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, u8 keymgmt, u8 ucipher, u8 auth, u8 assoc_req_len, u8 *assoc_info) { + struct ath6kl *ar = vif->ar; u8 *ies = NULL, *wpa_ie = NULL, *pos; size_t ies_len = 0; struct station_info sinfo; @@ -617,348 +551,32 @@ void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr, sinfo.assoc_req_ies_len = ies_len; sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; - cfg80211_new_sta(ar->net_dev, mac_addr, &sinfo, GFP_KERNEL); + cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL); - netif_wake_queue(ar->net_dev); -} - -/* Functions for Tx credit handling */ -void ath6k_credit_init(struct htc_credit_state_info *cred_info, - struct list_head *ep_list, - int tot_credits) -{ - struct htc_endpoint_credit_dist *cur_ep_dist; - int count; - - cred_info->cur_free_credits = tot_credits; - cred_info->total_avail_credits = tot_credits; - - list_for_each_entry(cur_ep_dist, ep_list, list) { - if (cur_ep_dist->endpoint == ENDPOINT_0) - continue; - - cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg; - - if (tot_credits > 4) - if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) || - (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) { - ath6kl_deposit_credit_to_ep(cred_info, - cur_ep_dist, - cur_ep_dist->cred_min); - cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; - } - - if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) { - ath6kl_deposit_credit_to_ep(cred_info, cur_ep_dist, - cur_ep_dist->cred_min); - /* - * Control service is always marked active, it - * never goes inactive EVER. - */ - cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; - } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC) - /* this is the lowest priority data endpoint */ - cred_info->lowestpri_ep_dist = cur_ep_dist->list; - - /* - * Streams have to be created (explicit | implicit) for all - * kinds of traffic. BE endpoints are also inactive in the - * beginning. When BE traffic starts it creates implicit - * streams that redistributes credits. - * - * Note: all other endpoints have minimums set but are - * initially given NO credits. credits will be distributed - * as traffic activity demands - */ - } - - WARN_ON(cred_info->cur_free_credits <= 0); - - list_for_each_entry(cur_ep_dist, ep_list, list) { - if (cur_ep_dist->endpoint == ENDPOINT_0) - continue; - - if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) - cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg; - else { - /* - * For the remaining data endpoints, we assume that - * each cred_per_msg are the same. We use a simple - * calculation here, we take the remaining credits - * and determine how many max messages this can - * cover and then set each endpoint's normal value - * equal to 3/4 this amount. - */ - count = (cred_info->cur_free_credits / - cur_ep_dist->cred_per_msg) - * cur_ep_dist->cred_per_msg; - count = (count * 3) >> 2; - count = max(count, cur_ep_dist->cred_per_msg); - cur_ep_dist->cred_norm = count; - - } - } -} - -/* initialize and setup credit distribution */ -int ath6k_setup_credit_dist(void *htc_handle, - struct htc_credit_state_info *cred_info) -{ - u16 servicepriority[5]; - - memset(cred_info, 0, sizeof(struct htc_credit_state_info)); - - servicepriority[0] = WMI_CONTROL_SVC; /* highest */ - servicepriority[1] = WMI_DATA_VO_SVC; - servicepriority[2] = WMI_DATA_VI_SVC; - servicepriority[3] = WMI_DATA_BE_SVC; - servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */ - - /* set priority list */ - ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5); - - return 0; -} - -/* reduce an ep's credits back to a set limit */ -static void ath6k_reduce_credits(struct htc_credit_state_info *cred_info, - struct htc_endpoint_credit_dist *ep_dist, - int limit) -{ - int credits; - - ep_dist->cred_assngd = limit; - - if (ep_dist->credits <= limit) - return; - - credits = ep_dist->credits - limit; - ep_dist->credits -= credits; - cred_info->cur_free_credits += credits; -} - -static void ath6k_credit_update(struct htc_credit_state_info *cred_info, - struct list_head *epdist_list) -{ - struct htc_endpoint_credit_dist *cur_dist_list; - - list_for_each_entry(cur_dist_list, epdist_list, list) { - if (cur_dist_list->endpoint == ENDPOINT_0) - continue; - - if (cur_dist_list->cred_to_dist > 0) { - cur_dist_list->credits += - cur_dist_list->cred_to_dist; - cur_dist_list->cred_to_dist = 0; - if (cur_dist_list->credits > - cur_dist_list->cred_assngd) - ath6k_reduce_credits(cred_info, - cur_dist_list, - cur_dist_list->cred_assngd); - - if (cur_dist_list->credits > - cur_dist_list->cred_norm) - ath6k_reduce_credits(cred_info, cur_dist_list, - cur_dist_list->cred_norm); - - if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) { - if (cur_dist_list->txq_depth == 0) - ath6k_reduce_credits(cred_info, - cur_dist_list, 0); - } - } - } -} - -/* - * HTC has an endpoint that needs credits, ep_dist is the endpoint in - * question. - */ -void ath6k_seek_credits(struct htc_credit_state_info *cred_info, - struct htc_endpoint_credit_dist *ep_dist) -{ - struct htc_endpoint_credit_dist *curdist_list; - int credits = 0; - int need; - - if (ep_dist->svc_id == WMI_CONTROL_SVC) - goto out; - - if ((ep_dist->svc_id == WMI_DATA_VI_SVC) || - (ep_dist->svc_id == WMI_DATA_VO_SVC)) - if ((ep_dist->cred_assngd >= ep_dist->cred_norm)) - goto out; - - /* - * For all other services, we follow a simple algorithm of: - * - * 1. checking the free pool for credits - * 2. checking lower priority endpoints for credits to take - */ - - credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); - - if (credits >= ep_dist->seek_cred) - goto out; - - /* - * We don't have enough in the free pool, try taking away from - * lower priority services The rule for taking away credits: - * - * 1. Only take from lower priority endpoints - * 2. Only take what is allocated above the minimum (never - * starve an endpoint completely) - * 3. Only take what you need. - */ - - list_for_each_entry_reverse(curdist_list, - &cred_info->lowestpri_ep_dist, - list) { - if (curdist_list == ep_dist) - break; - - need = ep_dist->seek_cred - cred_info->cur_free_credits; - - if ((curdist_list->cred_assngd - need) >= - curdist_list->cred_min) { - /* - * The current one has been allocated more than - * it's minimum and it has enough credits assigned - * above it's minimum to fulfill our need try to - * take away just enough to fulfill our need. - */ - ath6k_reduce_credits(cred_info, curdist_list, - curdist_list->cred_assngd - need); - - if (cred_info->cur_free_credits >= - ep_dist->seek_cred) - break; - } - - if (curdist_list->endpoint == ENDPOINT_0) - break; - } - - credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); - -out: - /* did we find some credits? */ - if (credits) - ath6kl_deposit_credit_to_ep(cred_info, ep_dist, credits); - - ep_dist->seek_cred = 0; -} - -/* redistribute credits based on activity change */ -static void ath6k_redistribute_credits(struct htc_credit_state_info *info, - struct list_head *ep_dist_list) -{ - struct htc_endpoint_credit_dist *curdist_list; - - list_for_each_entry(curdist_list, ep_dist_list, list) { - if (curdist_list->endpoint == ENDPOINT_0) - continue; - - if ((curdist_list->svc_id == WMI_DATA_BK_SVC) || - (curdist_list->svc_id == WMI_DATA_BE_SVC)) - curdist_list->dist_flags |= HTC_EP_ACTIVE; - - if ((curdist_list->svc_id != WMI_CONTROL_SVC) && - !(curdist_list->dist_flags & HTC_EP_ACTIVE)) { - if (curdist_list->txq_depth == 0) - ath6k_reduce_credits(info, - curdist_list, 0); - else - ath6k_reduce_credits(info, - curdist_list, - curdist_list->cred_min); - } - } -} - -/* - * - * This function is invoked whenever endpoints require credit - * distributions. A lock is held while this function is invoked, this - * function shall NOT block. The ep_dist_list is a list of distribution - * structures in prioritized order as defined by the call to the - * htc_set_credit_dist() api. - */ -void ath6k_credit_distribute(struct htc_credit_state_info *cred_info, - struct list_head *ep_dist_list, - enum htc_credit_dist_reason reason) -{ - switch (reason) { - case HTC_CREDIT_DIST_SEND_COMPLETE: - ath6k_credit_update(cred_info, ep_dist_list); - break; - case HTC_CREDIT_DIST_ACTIVITY_CHANGE: - ath6k_redistribute_credits(cred_info, ep_dist_list); - break; - default: - break; - } - - WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits); - WARN_ON(cred_info->cur_free_credits < 0); + netif_wake_queue(vif->ndev); } void disconnect_timer_handler(unsigned long ptr) { struct net_device *dev = (struct net_device *)ptr; - struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); - ath6kl_init_profile_info(ar); - ath6kl_disconnect(ar); + ath6kl_init_profile_info(vif); + ath6kl_disconnect(vif); } -void ath6kl_disconnect(struct ath6kl *ar) +void ath6kl_disconnect(struct ath6kl_vif *vif) { - if (test_bit(CONNECTED, &ar->flag) || - test_bit(CONNECT_PEND, &ar->flag)) { - ath6kl_wmi_disconnect_cmd(ar->wmi); + if (test_bit(CONNECTED, &vif->flags) || + test_bit(CONNECT_PEND, &vif->flags)) { + ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); /* * Disconnect command is issued, clear the connect pending * flag. The connected flag will be cleared in * disconnect event notification. */ - clear_bit(CONNECT_PEND, &ar->flag); - } -} - -void ath6kl_deep_sleep_enable(struct ath6kl *ar) -{ - switch (ar->sme_state) { - case SME_CONNECTING: - cfg80211_connect_result(ar->net_dev, ar->bssid, NULL, 0, - NULL, 0, - WLAN_STATUS_UNSPECIFIED_FAILURE, - GFP_KERNEL); - break; - case SME_CONNECTED: - default: - /* - * FIXME: oddly enough smeState is in DISCONNECTED during - * suspend, why? Need to send disconnected event in that - * state. - */ - cfg80211_disconnected(ar->net_dev, 0, NULL, 0, GFP_KERNEL); - break; + clear_bit(CONNECT_PEND, &vif->flags); } - - if (test_bit(CONNECTED, &ar->flag) || - test_bit(CONNECT_PEND, &ar->flag)) - ath6kl_wmi_disconnect_cmd(ar->wmi); - - ar->sme_state = SME_DISCONNECTED; - - /* disable scanning */ - if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 0, - 0, 0) != 0) - printk(KERN_WARNING "ath6kl: failed to disable scan " - "during suspend\n"); - - ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED); } /* WMI Event handlers */ @@ -980,17 +598,16 @@ static const char *get_hw_id_string(u32 id) void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) { struct ath6kl *ar = devt; - struct net_device *dev = ar->net_dev; - memcpy(dev->dev_addr, datap, ETH_ALEN); + memcpy(ar->mac_addr, datap, ETH_ALEN); ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n", - __func__, dev->dev_addr); + __func__, ar->mac_addr); ar->version.wlan_ver = sw_ver; ar->version.abi_ver = abi_ver; - snprintf(ar->wdev->wiphy->fw_version, - sizeof(ar->wdev->wiphy->fw_version), + snprintf(ar->wiphy->fw_version, + sizeof(ar->wiphy->fw_version), "%u.%u.%u.%u", (ar->version.wlan_ver & 0xf0000000) >> 28, (ar->version.wlan_ver & 0x0f000000) >> 24, @@ -1001,78 +618,91 @@ void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) set_bit(WMI_READY, &ar->flag); wake_up(&ar->event_wq); - ath6kl_info("hw %s fw %s%s\n", - get_hw_id_string(ar->wdev->wiphy->hw_version), - ar->wdev->wiphy->fw_version, - test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); + if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) { + ath6kl_info("hw %s fw %s%s\n", + get_hw_id_string(ar->wiphy->hw_version), + ar->wiphy->fw_version, + test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); + } } -void ath6kl_scan_complete_evt(struct ath6kl *ar, int status) +void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) { - ath6kl_cfg80211_scan_complete_event(ar, status); + struct ath6kl *ar = vif->ar; + bool aborted = false; + + if (status != WMI_SCAN_STATUS_SUCCESS) + aborted = true; + + ath6kl_cfg80211_scan_complete_event(vif, aborted); if (!ar->usr_bss_filter) { - clear_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag); - ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); + clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); + ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, + NONE_BSS_FILTER, 0); } - ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status); + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status); } -void ath6kl_connect_event(struct ath6kl *ar, u16 channel, u8 *bssid, +void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, u16 listen_int, u16 beacon_int, enum network_type net_type, u8 beacon_ie_len, u8 assoc_req_len, u8 assoc_resp_len, u8 *assoc_info) { - unsigned long flags; + struct ath6kl *ar = vif->ar; - ath6kl_cfg80211_connect_event(ar, channel, bssid, + ath6kl_cfg80211_connect_event(vif, channel, bssid, listen_int, beacon_int, net_type, beacon_ie_len, assoc_req_len, assoc_resp_len, assoc_info); - memcpy(ar->bssid, bssid, sizeof(ar->bssid)); - ar->bss_ch = channel; + memcpy(vif->bssid, bssid, sizeof(vif->bssid)); + vif->bss_ch = channel; - if ((ar->nw_type == INFRA_NETWORK)) - ath6kl_wmi_listeninterval_cmd(ar->wmi, ar->listen_intvl_t, + if ((vif->nw_type == INFRA_NETWORK)) + ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, + ar->listen_intvl_t, ar->listen_intvl_b); - netif_wake_queue(ar->net_dev); + netif_wake_queue(vif->ndev); /* Update connect & link status atomically */ - spin_lock_irqsave(&ar->lock, flags); - set_bit(CONNECTED, &ar->flag); - clear_bit(CONNECT_PEND, &ar->flag); - netif_carrier_on(ar->net_dev); - spin_unlock_irqrestore(&ar->lock, flags); + spin_lock_bh(&vif->if_lock); + set_bit(CONNECTED, &vif->flags); + clear_bit(CONNECT_PEND, &vif->flags); + netif_carrier_on(vif->ndev); + spin_unlock_bh(&vif->if_lock); - aggr_reset_state(ar->aggr_cntxt); - ar->reconnect_flag = 0; + aggr_reset_state(vif->aggr_cntxt); + vif->reconnect_flag = 0; - if ((ar->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { + if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { memset(ar->node_map, 0, sizeof(ar->node_map)); ar->node_num = 0; ar->next_ep_id = ENDPOINT_2; } if (!ar->usr_bss_filter) { - set_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag); - ath6kl_wmi_bssfilter_cmd(ar->wmi, CURRENT_BSS_FILTER, 0); + set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); + ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, + CURRENT_BSS_FILTER, 0); } } -void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast) +void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) { struct ath6kl_sta *sta; + struct ath6kl *ar = vif->ar; u8 tsc[6]; + /* * For AP case, keyid will have aid of STA which sent pkt with * MIC error. Use this aid to get MAC & send it to hostapd. */ - if (ar->nw_type == AP_NETWORK) { + if (vif->nw_type == AP_NETWORK) { sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); if (!sta) return; @@ -1081,19 +711,20 @@ void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast) "ap tkip mic error received from aid=%d\n", keyid); memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ - cfg80211_michael_mic_failure(ar->net_dev, sta->mac, + cfg80211_michael_mic_failure(vif->ndev, sta->mac, NL80211_KEYTYPE_PAIRWISE, keyid, tsc, GFP_KERNEL); } else - ath6kl_cfg80211_tkip_micerr_event(ar, keyid, ismcast); + ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); } -static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len) +static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) { struct wmi_target_stats *tgt_stats = (struct wmi_target_stats *) ptr; - struct target_stats *stats = &ar->target_stats; + struct ath6kl *ar = vif->ar; + struct target_stats *stats = &vif->target_stats; struct tkip_ccmp_stats *ccmp_stats; u8 ac; @@ -1189,8 +820,8 @@ static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len) stats->wow_evt_discarded += le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); - if (test_bit(STATS_UPDATE_PEND, &ar->flag)) { - clear_bit(STATS_UPDATE_PEND, &ar->flag); + if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { + clear_bit(STATS_UPDATE_PEND, &vif->flags); wake_up(&ar->event_wq); } } @@ -1200,14 +831,15 @@ static void ath6kl_add_le32(__le32 *var, __le32 val) *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); } -void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len) +void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) { struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; + struct ath6kl *ar = vif->ar; struct wmi_ap_mode_stat *ap = &ar->ap_stats; struct wmi_per_sta_stat *st_ap, *st_p; u8 ac; - if (ar->nw_type == AP_NETWORK) { + if (vif->nw_type == AP_NETWORK) { if (len < sizeof(*p)) return; @@ -1226,7 +858,7 @@ void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len) } } else { - ath6kl_update_target_stats(ar, ptr, len); + ath6kl_update_target_stats(vif, ptr, len); } } @@ -1245,11 +877,12 @@ void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) wake_up(&ar->event_wq); } -void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid) +void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) { struct ath6kl_sta *conn; struct sk_buff *skb; bool psq_empty = false; + struct ath6kl *ar = vif->ar; conn = ath6kl_find_sta_by_aid(ar, aid); @@ -1272,7 +905,7 @@ void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid) spin_unlock_bh(&conn->psq_lock); conn->sta_flags |= STA_PS_POLLED; - ath6kl_data_tx(skb, ar->net_dev); + ath6kl_data_tx(skb, vif->ndev); conn->sta_flags &= ~STA_PS_POLLED; spin_lock_bh(&conn->psq_lock); @@ -1280,13 +913,14 @@ void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid) spin_unlock_bh(&conn->psq_lock); if (psq_empty) - ath6kl_wmi_set_pvb_cmd(ar->wmi, conn->aid, 0); + ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); } -void ath6kl_dtimexpiry_event(struct ath6kl *ar) +void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) { bool mcastq_empty = false; struct sk_buff *skb; + struct ath6kl *ar = vif->ar; /* * If there are no associated STAs, ignore the DTIM expiry event. @@ -1308,31 +942,31 @@ void ath6kl_dtimexpiry_event(struct ath6kl *ar) return; /* set the STA flag to dtim_expired for the frame to go out */ - set_bit(DTIM_EXPIRED, &ar->flag); + set_bit(DTIM_EXPIRED, &vif->flags); spin_lock_bh(&ar->mcastpsq_lock); while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { spin_unlock_bh(&ar->mcastpsq_lock); - ath6kl_data_tx(skb, ar->net_dev); + ath6kl_data_tx(skb, vif->ndev); spin_lock_bh(&ar->mcastpsq_lock); } spin_unlock_bh(&ar->mcastpsq_lock); - clear_bit(DTIM_EXPIRED, &ar->flag); + clear_bit(DTIM_EXPIRED, &vif->flags); /* clear the LSB of the BitMapCtl field of the TIM IE */ - ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0); + ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); } -void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, +void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, u8 assoc_resp_len, u8 *assoc_info, u16 prot_reason_status) { - unsigned long flags; + struct ath6kl *ar = vif->ar; - if (ar->nw_type == AP_NETWORK) { + if (vif->nw_type == AP_NETWORK) { if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) return; @@ -1344,31 +978,31 @@ void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, /* clear the LSB of the TIM IE's BitMapCtl field */ if (test_bit(WMI_READY, &ar->flag)) - ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0); + ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, + MCAST_AID, 0); } if (!is_broadcast_ether_addr(bssid)) { /* send event to application */ - cfg80211_del_sta(ar->net_dev, bssid, GFP_KERNEL); + cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); } - if (memcmp(ar->net_dev->dev_addr, bssid, ETH_ALEN) == 0) { - memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); - clear_bit(CONNECTED, &ar->flag); + if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { + memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); + clear_bit(CONNECTED, &vif->flags); } return; } - ath6kl_cfg80211_disconnect_event(ar, reason, bssid, + ath6kl_cfg80211_disconnect_event(vif, reason, bssid, assoc_resp_len, assoc_info, prot_reason_status); - aggr_reset_state(ar->aggr_cntxt); + aggr_reset_state(vif->aggr_cntxt); - del_timer(&ar->disconnect_timer); + del_timer(&vif->disconnect_timer); - ath6kl_dbg(ATH6KL_DBG_WLAN_CONNECT, - "disconnect reason is %d\n", reason); + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason); /* * If the event is due to disconnect cmd from the host, only they @@ -1377,83 +1011,98 @@ void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, */ if (reason == DISCONNECT_CMD) { if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) - ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); + ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, + NONE_BSS_FILTER, 0); } else { - set_bit(CONNECT_PEND, &ar->flag); + set_bit(CONNECT_PEND, &vif->flags); if (((reason == ASSOC_FAILED) && (prot_reason_status == 0x11)) || ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) - && (ar->reconnect_flag == 1))) { - set_bit(CONNECTED, &ar->flag); + && (vif->reconnect_flag == 1))) { + set_bit(CONNECTED, &vif->flags); return; } } /* update connect & link status atomically */ - spin_lock_irqsave(&ar->lock, flags); - clear_bit(CONNECTED, &ar->flag); - netif_carrier_off(ar->net_dev); - spin_unlock_irqrestore(&ar->lock, flags); + spin_lock_bh(&vif->if_lock); + clear_bit(CONNECTED, &vif->flags); + netif_carrier_off(vif->ndev); + spin_unlock_bh(&vif->if_lock); - if ((reason != CSERV_DISCONNECT) || (ar->reconnect_flag != 1)) - ar->reconnect_flag = 0; + if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) + vif->reconnect_flag = 0; if (reason != CSERV_DISCONNECT) ar->user_key_ctrl = 0; - netif_stop_queue(ar->net_dev); - memset(ar->bssid, 0, sizeof(ar->bssid)); - ar->bss_ch = 0; + netif_stop_queue(vif->ndev); + memset(vif->bssid, 0, sizeof(vif->bssid)); + vif->bss_ch = 0; ath6kl_tx_data_cleanup(ar); } -static int ath6kl_open(struct net_device *dev) +struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar) { - struct ath6kl *ar = ath6kl_priv(dev); - unsigned long flags; + struct ath6kl_vif *vif; + + spin_lock_bh(&ar->list_lock); + if (list_empty(&ar->vif_list)) { + spin_unlock_bh(&ar->list_lock); + return NULL; + } - spin_lock_irqsave(&ar->lock, flags); + vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list); - set_bit(WLAN_ENABLED, &ar->flag); + spin_unlock_bh(&ar->list_lock); - if (test_bit(CONNECTED, &ar->flag)) { + return vif; +} + +static int ath6kl_open(struct net_device *dev) +{ + struct ath6kl_vif *vif = netdev_priv(dev); + + set_bit(WLAN_ENABLED, &vif->flags); + + if (test_bit(CONNECTED, &vif->flags)) { netif_carrier_on(dev); netif_wake_queue(dev); } else netif_carrier_off(dev); - spin_unlock_irqrestore(&ar->lock, flags); - return 0; } static int ath6kl_close(struct net_device *dev) { struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); netif_stop_queue(dev); - ath6kl_disconnect(ar); + ath6kl_disconnect(vif); if (test_bit(WMI_READY, &ar->flag)) { - if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, - 0, 0, 0)) + if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, + 0, 0, 0, 0, 0, 0, 0, 0, 0)) return -EIO; - clear_bit(WLAN_ENABLED, &ar->flag); } - ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED); + ath6kl_cfg80211_scan_complete_event(vif, true); + + clear_bit(WLAN_ENABLED, &vif->flags); return 0; } static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) { - struct ath6kl *ar = ath6kl_priv(dev); + struct ath6kl_vif *vif = netdev_priv(dev); - return &ar->net_stats; + return &vif->net_stats; } static struct net_device_ops ath6kl_netdev_ops = { @@ -1466,6 +1115,7 @@ static struct net_device_ops ath6kl_netdev_ops = { void init_netdev(struct net_device *dev) { dev->netdev_ops = &ath6kl_netdev_ops; + dev->destructor = free_netdev; dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; dev->needed_headroom = ETH_HLEN; diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c index 066d4f88807f..e69ca5ee5bb1 100644 --- a/drivers/net/wireless/ath/ath6kl/sdio.c +++ b/drivers/net/wireless/ath/ath6kl/sdio.c @@ -22,7 +22,7 @@ #include <linux/mmc/sdio_ids.h> #include <linux/mmc/sdio.h> #include <linux/mmc/sd.h> -#include "htc_hif.h" +#include "hif.h" #include "hif-ops.h" #include "target.h" #include "debug.h" @@ -46,6 +46,8 @@ struct ath6kl_sdio { struct list_head scat_req; spinlock_t scat_lock; + bool scatter_enabled; + bool is_disabled; atomic_t irq_handling; const struct sdio_device_id *id; @@ -135,6 +137,8 @@ static int ath6kl_sdio_io(struct sdio_func *func, u32 request, u32 addr, { int ret = 0; + sdio_claim_host(func); + if (request & HIF_WRITE) { /* FIXME: looks like ugly workaround for something */ if (addr >= HIF_MBOX_BASE_ADDR && @@ -156,6 +160,8 @@ static int ath6kl_sdio_io(struct sdio_func *func, u32 request, u32 addr, ret = sdio_memcpy_fromio(func, buf, addr, len); } + sdio_release_host(func); + ath6kl_dbg(ATH6KL_DBG_SDIO, "%s addr 0x%x%s buf 0x%p len %d\n", request & HIF_WRITE ? "wr" : "rd", addr, request & HIF_FIXED_ADDRESS ? " (fixed)" : "", buf, len); @@ -167,12 +173,11 @@ static int ath6kl_sdio_io(struct sdio_func *func, u32 request, u32 addr, static struct bus_request *ath6kl_sdio_alloc_busreq(struct ath6kl_sdio *ar_sdio) { struct bus_request *bus_req; - unsigned long flag; - spin_lock_irqsave(&ar_sdio->lock, flag); + spin_lock_bh(&ar_sdio->lock); if (list_empty(&ar_sdio->bus_req_freeq)) { - spin_unlock_irqrestore(&ar_sdio->lock, flag); + spin_unlock_bh(&ar_sdio->lock); return NULL; } @@ -180,7 +185,7 @@ static struct bus_request *ath6kl_sdio_alloc_busreq(struct ath6kl_sdio *ar_sdio) struct bus_request, list); list_del(&bus_req->list); - spin_unlock_irqrestore(&ar_sdio->lock, flag); + spin_unlock_bh(&ar_sdio->lock); ath6kl_dbg(ATH6KL_DBG_SCATTER, "%s: bus request 0x%p\n", __func__, bus_req); @@ -190,14 +195,12 @@ static struct bus_request *ath6kl_sdio_alloc_busreq(struct ath6kl_sdio *ar_sdio) static void ath6kl_sdio_free_bus_req(struct ath6kl_sdio *ar_sdio, struct bus_request *bus_req) { - unsigned long flag; - ath6kl_dbg(ATH6KL_DBG_SCATTER, "%s: bus request 0x%p\n", __func__, bus_req); - spin_lock_irqsave(&ar_sdio->lock, flag); + spin_lock_bh(&ar_sdio->lock); list_add_tail(&bus_req->list, &ar_sdio->bus_req_freeq); - spin_unlock_irqrestore(&ar_sdio->lock, flag); + spin_unlock_bh(&ar_sdio->lock); } static void ath6kl_sdio_setup_scat_data(struct hif_scatter_req *scat_req, @@ -291,10 +294,14 @@ static int ath6kl_sdio_scat_rw(struct ath6kl_sdio *ar_sdio, mmc_req.cmd = &cmd; mmc_req.data = &data; + sdio_claim_host(ar_sdio->func); + mmc_set_data_timeout(&data, ar_sdio->func->card); /* synchronous call to process request */ mmc_wait_for_req(ar_sdio->func->card->host, &mmc_req); + sdio_release_host(ar_sdio->func); + status = cmd.error ? cmd.error : data.error; scat_complete: @@ -395,11 +402,9 @@ static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf, } else tbuf = buf; - sdio_claim_host(ar_sdio->func); ret = ath6kl_sdio_io(ar_sdio->func, request, addr, tbuf, len); if ((request & HIF_READ) && bounced) memcpy(buf, tbuf, len); - sdio_release_host(ar_sdio->func); return ret; } @@ -418,29 +423,25 @@ static void __ath6kl_sdio_write_async(struct ath6kl_sdio *ar_sdio, req->request); context = req->packet; ath6kl_sdio_free_bus_req(ar_sdio, req); - ath6kldev_rw_comp_handler(context, status); + ath6kl_hif_rw_comp_handler(context, status); } } static void ath6kl_sdio_write_async_work(struct work_struct *work) { struct ath6kl_sdio *ar_sdio; - unsigned long flags; struct bus_request *req, *tmp_req; ar_sdio = container_of(work, struct ath6kl_sdio, wr_async_work); - sdio_claim_host(ar_sdio->func); - spin_lock_irqsave(&ar_sdio->wr_async_lock, flags); + spin_lock_bh(&ar_sdio->wr_async_lock); list_for_each_entry_safe(req, tmp_req, &ar_sdio->wr_asyncq, list) { list_del(&req->list); - spin_unlock_irqrestore(&ar_sdio->wr_async_lock, flags); + spin_unlock_bh(&ar_sdio->wr_async_lock); __ath6kl_sdio_write_async(ar_sdio, req); - spin_lock_irqsave(&ar_sdio->wr_async_lock, flags); + spin_lock_bh(&ar_sdio->wr_async_lock); } - spin_unlock_irqrestore(&ar_sdio->wr_async_lock, flags); - - sdio_release_host(ar_sdio->func); + spin_unlock_bh(&ar_sdio->wr_async_lock); } static void ath6kl_sdio_irq_handler(struct sdio_func *func) @@ -459,20 +460,23 @@ static void ath6kl_sdio_irq_handler(struct sdio_func *func) */ sdio_release_host(ar_sdio->func); - status = ath6kldev_intr_bh_handler(ar_sdio->ar); + status = ath6kl_hif_intr_bh_handler(ar_sdio->ar); sdio_claim_host(ar_sdio->func); atomic_set(&ar_sdio->irq_handling, 0); WARN_ON(status && status != -ECANCELED); } -static int ath6kl_sdio_power_on(struct ath6kl_sdio *ar_sdio) +static int ath6kl_sdio_power_on(struct ath6kl *ar) { + struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); struct sdio_func *func = ar_sdio->func; int ret = 0; if (!ar_sdio->is_disabled) return 0; + ath6kl_dbg(ATH6KL_DBG_BOOT, "sdio power on\n"); + sdio_claim_host(func); ret = sdio_enable_func(func); @@ -495,13 +499,16 @@ static int ath6kl_sdio_power_on(struct ath6kl_sdio *ar_sdio) return ret; } -static int ath6kl_sdio_power_off(struct ath6kl_sdio *ar_sdio) +static int ath6kl_sdio_power_off(struct ath6kl *ar) { + struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); int ret; if (ar_sdio->is_disabled) return 0; + ath6kl_dbg(ATH6KL_DBG_BOOT, "sdio power off\n"); + /* Disable the card */ sdio_claim_host(ar_sdio->func); ret = sdio_disable_func(ar_sdio->func); @@ -521,7 +528,6 @@ static int ath6kl_sdio_write_async(struct ath6kl *ar, u32 address, u8 *buffer, { struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); struct bus_request *bus_req; - unsigned long flags; bus_req = ath6kl_sdio_alloc_busreq(ar_sdio); @@ -534,9 +540,9 @@ static int ath6kl_sdio_write_async(struct ath6kl *ar, u32 address, u8 *buffer, bus_req->request = request; bus_req->packet = packet; - spin_lock_irqsave(&ar_sdio->wr_async_lock, flags); + spin_lock_bh(&ar_sdio->wr_async_lock); list_add_tail(&bus_req->list, &ar_sdio->wr_asyncq); - spin_unlock_irqrestore(&ar_sdio->wr_async_lock, flags); + spin_unlock_bh(&ar_sdio->wr_async_lock); queue_work(ar->ath6kl_wq, &ar_sdio->wr_async_work); return 0; @@ -582,9 +588,8 @@ static struct hif_scatter_req *ath6kl_sdio_scatter_req_get(struct ath6kl *ar) { struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); struct hif_scatter_req *node = NULL; - unsigned long flag; - spin_lock_irqsave(&ar_sdio->scat_lock, flag); + spin_lock_bh(&ar_sdio->scat_lock); if (!list_empty(&ar_sdio->scat_req)) { node = list_first_entry(&ar_sdio->scat_req, @@ -592,7 +597,7 @@ static struct hif_scatter_req *ath6kl_sdio_scatter_req_get(struct ath6kl *ar) list_del(&node->list); } - spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); + spin_unlock_bh(&ar_sdio->scat_lock); return node; } @@ -601,13 +606,12 @@ static void ath6kl_sdio_scatter_req_add(struct ath6kl *ar, struct hif_scatter_req *s_req) { struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); - unsigned long flag; - spin_lock_irqsave(&ar_sdio->scat_lock, flag); + spin_lock_bh(&ar_sdio->scat_lock); list_add_tail(&s_req->list, &ar_sdio->scat_req); - spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); + spin_unlock_bh(&ar_sdio->scat_lock); } @@ -618,7 +622,6 @@ static int ath6kl_sdio_async_rw_scatter(struct ath6kl *ar, struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); u32 request = scat_req->req; int status = 0; - unsigned long flags; if (!scat_req->len) return -EINVAL; @@ -627,14 +630,12 @@ static int ath6kl_sdio_async_rw_scatter(struct ath6kl *ar, "hif-scatter: total len: %d scatter entries: %d\n", scat_req->len, scat_req->scat_entries); - if (request & HIF_SYNCHRONOUS) { - sdio_claim_host(ar_sdio->func); + if (request & HIF_SYNCHRONOUS) status = ath6kl_sdio_scat_rw(ar_sdio, scat_req->busrequest); - sdio_release_host(ar_sdio->func); - } else { - spin_lock_irqsave(&ar_sdio->wr_async_lock, flags); + else { + spin_lock_bh(&ar_sdio->wr_async_lock); list_add_tail(&scat_req->busrequest->list, &ar_sdio->wr_asyncq); - spin_unlock_irqrestore(&ar_sdio->wr_async_lock, flags); + spin_unlock_bh(&ar_sdio->wr_async_lock); queue_work(ar->ath6kl_wq, &ar_sdio->wr_async_work); } @@ -646,23 +647,27 @@ static void ath6kl_sdio_cleanup_scatter(struct ath6kl *ar) { struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); struct hif_scatter_req *s_req, *tmp_req; - unsigned long flag; /* empty the free list */ - spin_lock_irqsave(&ar_sdio->scat_lock, flag); + spin_lock_bh(&ar_sdio->scat_lock); list_for_each_entry_safe(s_req, tmp_req, &ar_sdio->scat_req, list) { list_del(&s_req->list); - spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); + spin_unlock_bh(&ar_sdio->scat_lock); + /* + * FIXME: should we also call completion handler with + * ath6kl_hif_rw_comp_handler() with status -ECANCELED so + * that the packet is properly freed? + */ if (s_req->busrequest) ath6kl_sdio_free_bus_req(ar_sdio, s_req->busrequest); kfree(s_req->virt_dma_buf); kfree(s_req->sgentries); kfree(s_req); - spin_lock_irqsave(&ar_sdio->scat_lock, flag); + spin_lock_bh(&ar_sdio->scat_lock); } - spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); + spin_unlock_bh(&ar_sdio->scat_lock); } /* setup of HIF scatter resources */ @@ -673,6 +678,11 @@ static int ath6kl_sdio_enable_scatter(struct ath6kl *ar) int ret; bool virt_scat = false; + if (ar_sdio->scatter_enabled) + return 0; + + ar_sdio->scatter_enabled = true; + /* check if host supports scatter and it meets our requirements */ if (ar_sdio->func->card->host->max_segs < MAX_SCATTER_ENTRIES_PER_REQ) { ath6kl_err("host only supports scatter of :%d entries, need: %d\n", @@ -687,8 +697,8 @@ static int ath6kl_sdio_enable_scatter(struct ath6kl *ar) MAX_SCATTER_REQUESTS, virt_scat); if (!ret) { - ath6kl_dbg(ATH6KL_DBG_SCATTER, - "hif-scatter enabled: max scatter req : %d entries: %d\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, + "hif-scatter enabled requests %d entries %d\n", MAX_SCATTER_REQUESTS, MAX_SCATTER_ENTRIES_PER_REQ); @@ -712,8 +722,8 @@ static int ath6kl_sdio_enable_scatter(struct ath6kl *ar) return ret; } - ath6kl_dbg(ATH6KL_DBG_SCATTER, - "Vitual scatter enabled, max_scat_req:%d, entries:%d\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, + "virtual scatter enabled requests %d entries %d\n", ATH6KL_SCATTER_REQS, ATH6KL_SCATTER_ENTRIES_PER_REQ); target->max_scat_entries = ATH6KL_SCATTER_ENTRIES_PER_REQ; @@ -724,7 +734,47 @@ static int ath6kl_sdio_enable_scatter(struct ath6kl *ar) return 0; } -static int ath6kl_sdio_suspend(struct ath6kl *ar) +static int ath6kl_sdio_config(struct ath6kl *ar) +{ + struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); + struct sdio_func *func = ar_sdio->func; + int ret; + + sdio_claim_host(func); + + if ((ar_sdio->id->device & MANUFACTURER_ID_ATH6KL_BASE_MASK) >= + MANUFACTURER_ID_AR6003_BASE) { + /* enable 4-bit ASYNC interrupt on AR6003 or later */ + ret = ath6kl_sdio_func0_cmd52_wr_byte(func->card, + CCCR_SDIO_IRQ_MODE_REG, + SDIO_IRQ_MODE_ASYNC_4BIT_IRQ); + if (ret) { + ath6kl_err("Failed to enable 4-bit async irq mode %d\n", + ret); + goto out; + } + + ath6kl_dbg(ATH6KL_DBG_BOOT, "4-bit async irq mode enabled\n"); + } + + /* give us some time to enable, in ms */ + func->enable_timeout = 100; + + ret = sdio_set_block_size(func, HIF_MBOX_BLOCK_SIZE); + if (ret) { + ath6kl_err("Set sdio block size %d failed: %d)\n", + HIF_MBOX_BLOCK_SIZE, ret); + sdio_release_host(func); + goto out; + } + +out: + sdio_release_host(func); + + return ret; +} + +static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) { struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); struct sdio_func *func = ar_sdio->func; @@ -733,12 +783,14 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar) flags = sdio_get_host_pm_caps(func); - if (!(flags & MMC_PM_KEEP_POWER)) - /* as host doesn't support keep power we need to bail out */ - ath6kl_dbg(ATH6KL_DBG_SDIO, - "func %d doesn't support MMC_PM_KEEP_POWER\n", - func->num); - return -EINVAL; + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio suspend pm_caps 0x%x\n", flags); + + if (!(flags & MMC_PM_KEEP_POWER) || + (ar->conf_flags & ATH6KL_CONF_SUSPEND_CUTPOWER)) { + /* as host doesn't support keep power we need to cut power */ + return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_CUTPOWER, + NULL); + } ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); if (ret) { @@ -747,11 +799,85 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar) return ret; } - ath6kl_deep_sleep_enable(ar); + if ((flags & MMC_PM_WAKE_SDIO_IRQ) && wow) { + /* + * The host sdio controller is capable of keep power and + * sdio irq wake up at this point. It's fine to continue + * wow suspend operation. + */ + ret = ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_WOW, wow); + if (ret) + return ret; + + ret = sdio_set_host_pm_flags(func, MMC_PM_WAKE_SDIO_IRQ); + if (ret) + ath6kl_err("set sdio wake irq flag failed: %d\n", ret); + + return ret; + } + + return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_DEEPSLEEP, NULL); +} + +static int ath6kl_sdio_resume(struct ath6kl *ar) +{ + switch (ar->state) { + case ATH6KL_STATE_OFF: + case ATH6KL_STATE_CUTPOWER: + ath6kl_dbg(ATH6KL_DBG_SUSPEND, + "sdio resume configuring sdio\n"); + + /* need to set sdio settings after power is cut from sdio */ + ath6kl_sdio_config(ar); + break; + + case ATH6KL_STATE_ON: + break; + + case ATH6KL_STATE_DEEPSLEEP: + break; + + case ATH6KL_STATE_WOW: + break; + } + + ath6kl_cfg80211_resume(ar); return 0; } +static void ath6kl_sdio_stop(struct ath6kl *ar) +{ + struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); + struct bus_request *req, *tmp_req; + void *context; + + /* FIXME: make sure that wq is not queued again */ + + cancel_work_sync(&ar_sdio->wr_async_work); + + spin_lock_bh(&ar_sdio->wr_async_lock); + + list_for_each_entry_safe(req, tmp_req, &ar_sdio->wr_asyncq, list) { + list_del(&req->list); + + if (req->scat_req) { + /* this is a scatter gather request */ + req->scat_req->status = -ECANCELED; + req->scat_req->complete(ar_sdio->ar->htc_target, + req->scat_req); + } else { + context = req->packet; + ath6kl_sdio_free_bus_req(ar_sdio, req); + ath6kl_hif_rw_comp_handler(context, -ECANCELED); + } + } + + spin_unlock_bh(&ar_sdio->wr_async_lock); + + WARN_ON(get_queue_depth(&ar_sdio->scat_req) != 4); +} + static const struct ath6kl_hif_ops ath6kl_sdio_ops = { .read_write_sync = ath6kl_sdio_read_write_sync, .write_async = ath6kl_sdio_write_async, @@ -763,8 +889,43 @@ static const struct ath6kl_hif_ops ath6kl_sdio_ops = { .scat_req_rw = ath6kl_sdio_async_rw_scatter, .cleanup_scatter = ath6kl_sdio_cleanup_scatter, .suspend = ath6kl_sdio_suspend, + .resume = ath6kl_sdio_resume, + .power_on = ath6kl_sdio_power_on, + .power_off = ath6kl_sdio_power_off, + .stop = ath6kl_sdio_stop, }; +#ifdef CONFIG_PM_SLEEP + +/* + * Empty handlers so that mmc subsystem doesn't remove us entirely during + * suspend. We instead follow cfg80211 suspend/resume handlers. + */ +static int ath6kl_sdio_pm_suspend(struct device *device) +{ + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio pm suspend\n"); + + return 0; +} + +static int ath6kl_sdio_pm_resume(struct device *device) +{ + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio pm resume\n"); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(ath6kl_sdio_pm_ops, ath6kl_sdio_pm_suspend, + ath6kl_sdio_pm_resume); + +#define ATH6KL_SDIO_PM_OPS (&ath6kl_sdio_pm_ops) + +#else + +#define ATH6KL_SDIO_PM_OPS NULL + +#endif /* CONFIG_PM_SLEEP */ + static int ath6kl_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) { @@ -773,8 +934,8 @@ static int ath6kl_sdio_probe(struct sdio_func *func, struct ath6kl *ar; int count; - ath6kl_dbg(ATH6KL_DBG_SDIO, - "new func %d vendor 0x%x device 0x%x block 0x%x/0x%x\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, + "sdio new func %d vendor 0x%x device 0x%x block 0x%x/0x%x\n", func->num, func->vendor, func->device, func->max_blksize, func->cur_blksize); @@ -820,57 +981,22 @@ static int ath6kl_sdio_probe(struct sdio_func *func, ath6kl_sdio_set_mbox_info(ar); - sdio_claim_host(func); - - if ((ar_sdio->id->device & MANUFACTURER_ID_ATH6KL_BASE_MASK) >= - MANUFACTURER_ID_AR6003_BASE) { - /* enable 4-bit ASYNC interrupt on AR6003 or later */ - ret = ath6kl_sdio_func0_cmd52_wr_byte(func->card, - CCCR_SDIO_IRQ_MODE_REG, - SDIO_IRQ_MODE_ASYNC_4BIT_IRQ); - if (ret) { - ath6kl_err("Failed to enable 4-bit async irq mode %d\n", - ret); - sdio_release_host(func); - goto err_cfg80211; - } - - ath6kl_dbg(ATH6KL_DBG_SDIO, "4-bit async irq mode enabled\n"); - } - - /* give us some time to enable, in ms */ - func->enable_timeout = 100; - - sdio_release_host(func); - - ret = ath6kl_sdio_power_on(ar_sdio); - if (ret) - goto err_cfg80211; - - sdio_claim_host(func); - - ret = sdio_set_block_size(func, HIF_MBOX_BLOCK_SIZE); + ret = ath6kl_sdio_config(ar); if (ret) { - ath6kl_err("Set sdio block size %d failed: %d)\n", - HIF_MBOX_BLOCK_SIZE, ret); - sdio_release_host(func); - goto err_off; + ath6kl_err("Failed to config sdio: %d\n", ret); + goto err_core_alloc; } - sdio_release_host(func); - ret = ath6kl_core_init(ar); if (ret) { ath6kl_err("Failed to init ath6kl core\n"); - goto err_off; + goto err_core_alloc; } return ret; -err_off: - ath6kl_sdio_power_off(ar_sdio); -err_cfg80211: - ath6kl_cfg80211_deinit(ar_sdio->ar); +err_core_alloc: + ath6kl_core_free(ar_sdio->ar); err_dma: kfree(ar_sdio->dma_buffer); err_hif: @@ -883,8 +1009,8 @@ static void ath6kl_sdio_remove(struct sdio_func *func) { struct ath6kl_sdio *ar_sdio; - ath6kl_dbg(ATH6KL_DBG_SDIO, - "removed func %d vendor 0x%x device 0x%x\n", + ath6kl_dbg(ATH6KL_DBG_BOOT, + "sdio removed func %d vendor 0x%x device 0x%x\n", func->num, func->vendor, func->device); ar_sdio = sdio_get_drvdata(func); @@ -892,9 +1018,7 @@ static void ath6kl_sdio_remove(struct sdio_func *func) ath6kl_stop_txrx(ar_sdio->ar); cancel_work_sync(&ar_sdio->wr_async_work); - ath6kl_unavail_ev(ar_sdio->ar); - - ath6kl_sdio_power_off(ar_sdio); + ath6kl_core_cleanup(ar_sdio->ar); kfree(ar_sdio->dma_buffer); kfree(ar_sdio); @@ -909,10 +1033,11 @@ static const struct sdio_device_id ath6kl_sdio_devices[] = { MODULE_DEVICE_TABLE(sdio, ath6kl_sdio_devices); static struct sdio_driver ath6kl_sdio_driver = { - .name = "ath6kl_sdio", + .name = "ath6kl", .id_table = ath6kl_sdio_devices, .probe = ath6kl_sdio_probe, .remove = ath6kl_sdio_remove, + .drv.pm = ATH6KL_SDIO_PM_OPS, }; static int __init ath6kl_sdio_init(void) diff --git a/drivers/net/wireless/ath/ath6kl/target.h b/drivers/net/wireless/ath/ath6kl/target.h index c9a76051f042..687e2b350e8f 100644 --- a/drivers/net/wireless/ath/ath6kl/target.h +++ b/drivers/net/wireless/ath/ath6kl/target.h @@ -320,7 +320,10 @@ struct host_interest { | (2) | (2) | (2) | (2) | (2) | (2) | (2) | (2) |------------------------------------------------------------------------------| */ +#define HI_OPTION_FW_MODE_BITS 0x2 #define HI_OPTION_FW_MODE_SHIFT 0xC + +#define HI_OPTION_FW_SUBMODE_BITS 0x2 #define HI_OPTION_FW_SUBMODE_SHIFT 0x14 /* Convert a Target virtual address into a Target physical address */ diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c index a7117074f81c..d9cff2b950b1 100644 --- a/drivers/net/wireless/ath/ath6kl/txrx.c +++ b/drivers/net/wireless/ath/ath6kl/txrx.c @@ -77,12 +77,13 @@ static u8 ath6kl_ibss_map_epid(struct sk_buff *skb, struct net_device *dev, return ar->node_map[ep_map].ep_id; } -static bool ath6kl_powersave_ap(struct ath6kl *ar, struct sk_buff *skb, +static bool ath6kl_powersave_ap(struct ath6kl_vif *vif, struct sk_buff *skb, bool *more_data) { struct ethhdr *datap = (struct ethhdr *) skb->data; struct ath6kl_sta *conn = NULL; bool ps_queued = false, is_psq_empty = false; + struct ath6kl *ar = vif->ar; if (is_multicast_ether_addr(datap->h_dest)) { u8 ctr = 0; @@ -100,7 +101,7 @@ static bool ath6kl_powersave_ap(struct ath6kl *ar, struct sk_buff *skb, * If this transmit is not because of a Dtim Expiry * q it. */ - if (!test_bit(DTIM_EXPIRED, &ar->flag)) { + if (!test_bit(DTIM_EXPIRED, &vif->flags)) { bool is_mcastq_empty = false; spin_lock_bh(&ar->mcastpsq_lock); @@ -116,6 +117,7 @@ static bool ath6kl_powersave_ap(struct ath6kl *ar, struct sk_buff *skb, */ if (is_mcastq_empty) ath6kl_wmi_set_pvb_cmd(ar->wmi, + vif->fw_vif_idx, MCAST_AID, 1); ps_queued = true; @@ -131,7 +133,7 @@ static bool ath6kl_powersave_ap(struct ath6kl *ar, struct sk_buff *skb, } } } else { - conn = ath6kl_find_sta(ar, datap->h_dest); + conn = ath6kl_find_sta(vif, datap->h_dest); if (!conn) { dev_kfree_skb(skb); @@ -154,6 +156,7 @@ static bool ath6kl_powersave_ap(struct ath6kl *ar, struct sk_buff *skb, */ if (is_psq_empty) ath6kl_wmi_set_pvb_cmd(ar->wmi, + vif->fw_vif_idx, conn->aid, 1); ps_queued = true; @@ -235,6 +238,7 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev) struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_cookie *cookie = NULL; enum htc_endpoint_id eid = ENDPOINT_UNUSED; + struct ath6kl_vif *vif = netdev_priv(dev); u32 map_no = 0; u16 htc_tag = ATH6KL_DATA_PKT_TAG; u8 ac = 99 ; /* initialize to unmapped ac */ @@ -246,7 +250,7 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev) skb, skb->data, skb->len); /* If target is not associated */ - if (!test_bit(CONNECTED, &ar->flag)) { + if (!test_bit(CONNECTED, &vif->flags)) { dev_kfree_skb(skb); return 0; } @@ -255,15 +259,21 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev) goto fail_tx; /* AP mode Power saving processing */ - if (ar->nw_type == AP_NETWORK) { - if (ath6kl_powersave_ap(ar, skb, &more_data)) + if (vif->nw_type == AP_NETWORK) { + if (ath6kl_powersave_ap(vif, skb, &more_data)) return 0; } if (test_bit(WMI_ENABLED, &ar->flag)) { if (skb_headroom(skb) < dev->needed_headroom) { - WARN_ON(1); - goto fail_tx; + struct sk_buff *tmp_skb = skb; + + skb = skb_realloc_headroom(skb, dev->needed_headroom); + kfree_skb(tmp_skb); + if (skb == NULL) { + vif->net_stats.tx_dropped++; + return 0; + } } if (ath6kl_wmi_dix_2_dot3(ar->wmi, skb)) { @@ -272,18 +282,20 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev) } if (ath6kl_wmi_data_hdr_add(ar->wmi, skb, DATA_MSGTYPE, - more_data, 0, 0, NULL)) { + more_data, 0, 0, NULL, + vif->fw_vif_idx)) { ath6kl_err("wmi_data_hdr_add failed\n"); goto fail_tx; } - if ((ar->nw_type == ADHOC_NETWORK) && - ar->ibss_ps_enable && test_bit(CONNECTED, &ar->flag)) + if ((vif->nw_type == ADHOC_NETWORK) && + ar->ibss_ps_enable && test_bit(CONNECTED, &vif->flags)) chk_adhoc_ps_mapping = true; else { /* get the stream mapping */ - ret = ath6kl_wmi_implicit_create_pstream(ar->wmi, skb, - 0, test_bit(WMM_ENABLED, &ar->flag), &ac); + ret = ath6kl_wmi_implicit_create_pstream(ar->wmi, + vif->fw_vif_idx, skb, + 0, test_bit(WMM_ENABLED, &vif->flags), &ac); if (ret) goto fail_tx; } @@ -354,8 +366,8 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev) fail_tx: dev_kfree_skb(skb); - ar->net_stats.tx_dropped++; - ar->net_stats.tx_aborted_errors++; + vif->net_stats.tx_dropped++; + vif->net_stats.tx_aborted_errors++; return 0; } @@ -426,7 +438,9 @@ enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target, struct htc_packet *packet) { struct ath6kl *ar = target->dev->ar; + struct ath6kl_vif *vif; enum htc_endpoint_id endpoint = packet->endpoint; + enum htc_send_full_action action = HTC_SEND_FULL_KEEP; if (endpoint == ar->ctrl_ep) { /* @@ -439,19 +453,11 @@ enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target, set_bit(WMI_CTRL_EP_FULL, &ar->flag); spin_unlock_bh(&ar->lock); ath6kl_err("wmi ctrl ep is full\n"); - return HTC_SEND_FULL_KEEP; + goto stop_adhoc_netq; } if (packet->info.tx.tag == ATH6KL_CONTROL_PKT_TAG) - return HTC_SEND_FULL_KEEP; - - if (ar->nw_type == ADHOC_NETWORK) - /* - * In adhoc mode, we cannot differentiate traffic - * priorities so there is no need to continue, however we - * should stop the network. - */ - goto stop_net_queues; + goto stop_adhoc_netq; /* * The last MAX_HI_COOKIE_NUM "batch" of cookies are reserved for @@ -459,29 +465,43 @@ enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target, */ if (ar->ac_stream_pri_map[ar->ep2ac_map[endpoint]] < ar->hiac_stream_active_pri && - ar->cookie_count <= MAX_HI_COOKIE_NUM) + ar->cookie_count <= MAX_HI_COOKIE_NUM) { /* * Give preference to the highest priority stream by * dropping the packets which overflowed. */ - return HTC_SEND_FULL_DROP; + action = HTC_SEND_FULL_DROP; + goto stop_adhoc_netq; + } -stop_net_queues: - spin_lock_bh(&ar->lock); - set_bit(NETQ_STOPPED, &ar->flag); - spin_unlock_bh(&ar->lock); - netif_stop_queue(ar->net_dev); +stop_adhoc_netq: + /* FIXME: Locking */ + spin_lock_bh(&ar->list_lock); + list_for_each_entry(vif, &ar->vif_list, list) { + if (vif->nw_type == ADHOC_NETWORK) { + spin_unlock_bh(&ar->list_lock); - return HTC_SEND_FULL_KEEP; + spin_lock_bh(&vif->if_lock); + set_bit(NETQ_STOPPED, &vif->flags); + spin_unlock_bh(&vif->if_lock); + netif_stop_queue(vif->ndev); + + return action; + } + } + spin_unlock_bh(&ar->list_lock); + + return action; } /* TODO this needs to be looked at */ -static void ath6kl_tx_clear_node_map(struct ath6kl *ar, +static void ath6kl_tx_clear_node_map(struct ath6kl_vif *vif, enum htc_endpoint_id eid, u32 map_no) { + struct ath6kl *ar = vif->ar; u32 i; - if (ar->nw_type != ADHOC_NETWORK) + if (vif->nw_type != ADHOC_NETWORK) return; if (!ar->ibss_ps_enable) @@ -523,7 +543,9 @@ void ath6kl_tx_complete(void *context, struct list_head *packet_queue) int status; enum htc_endpoint_id eid; bool wake_event = false; - bool flushing = false; + bool flushing[MAX_NUM_VIF] = {false}; + u8 if_idx; + struct ath6kl_vif *vif; skb_queue_head_init(&skb_queue); @@ -569,15 +591,30 @@ void ath6kl_tx_complete(void *context, struct list_head *packet_queue) wake_event = true; } + if (eid == ar->ctrl_ep) { + if_idx = wmi_cmd_hdr_get_if_idx( + (struct wmi_cmd_hdr *) skb->data); + } else { + if_idx = wmi_data_hdr_get_if_idx( + (struct wmi_data_hdr *) skb->data); + } + + vif = ath6kl_get_vif_by_index(ar, if_idx); + if (!vif) { + ath6kl_free_cookie(ar, ath6kl_cookie); + continue; + } + if (status) { if (status == -ECANCELED) /* a packet was flushed */ - flushing = true; + flushing[if_idx] = true; + + vif->net_stats.tx_errors++; - ar->net_stats.tx_errors++; + if (status != -ENOSPC && status != -ECANCELED) + ath6kl_warn("tx complete error: %d\n", status); - if (status != -ENOSPC) - ath6kl_err("tx error, status: 0x%x\n", status); ath6kl_dbg(ATH6KL_DBG_WLAN_TX, "%s: skb=0x%p data=0x%p len=0x%x eid=%d %s\n", __func__, skb, packet->buf, packet->act_len, @@ -588,27 +625,34 @@ void ath6kl_tx_complete(void *context, struct list_head *packet_queue) __func__, skb, packet->buf, packet->act_len, eid, "OK"); - flushing = false; - ar->net_stats.tx_packets++; - ar->net_stats.tx_bytes += skb->len; + flushing[if_idx] = false; + vif->net_stats.tx_packets++; + vif->net_stats.tx_bytes += skb->len; } - ath6kl_tx_clear_node_map(ar, eid, map_no); + ath6kl_tx_clear_node_map(vif, eid, map_no); ath6kl_free_cookie(ar, ath6kl_cookie); - if (test_bit(NETQ_STOPPED, &ar->flag)) - clear_bit(NETQ_STOPPED, &ar->flag); + if (test_bit(NETQ_STOPPED, &vif->flags)) + clear_bit(NETQ_STOPPED, &vif->flags); } spin_unlock_bh(&ar->lock); __skb_queue_purge(&skb_queue); - if (test_bit(CONNECTED, &ar->flag)) { - if (!flushing) - netif_wake_queue(ar->net_dev); + /* FIXME: Locking */ + spin_lock_bh(&ar->list_lock); + list_for_each_entry(vif, &ar->vif_list, list) { + if (test_bit(CONNECTED, &vif->flags) && + !flushing[vif->fw_vif_idx]) { + spin_unlock_bh(&ar->list_lock); + netif_wake_queue(vif->ndev); + spin_lock_bh(&ar->list_lock); + } } + spin_unlock_bh(&ar->list_lock); if (wake_event) wake_up(&ar->event_wq); @@ -1041,8 +1085,9 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) struct ath6kl_sta *conn = NULL; struct sk_buff *skb1 = NULL; struct ethhdr *datap = NULL; + struct ath6kl_vif *vif; u16 seq_no, offset; - u8 tid; + u8 tid, if_idx; ath6kl_dbg(ATH6KL_DBG_WLAN_RX, "%s: ar=0x%p eid=%d, skb=0x%p, data=0x%p, len=0x%x status:%d", @@ -1050,7 +1095,23 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) packet->act_len, status); if (status || !(skb->data + HTC_HDR_LENGTH)) { - ar->net_stats.rx_errors++; + dev_kfree_skb(skb); + return; + } + + skb_put(skb, packet->act_len + HTC_HDR_LENGTH); + skb_pull(skb, HTC_HDR_LENGTH); + + if (ept == ar->ctrl_ep) { + if_idx = + wmi_cmd_hdr_get_if_idx((struct wmi_cmd_hdr *) skb->data); + } else { + if_idx = + wmi_data_hdr_get_if_idx((struct wmi_data_hdr *) skb->data); + } + + vif = ath6kl_get_vif_by_index(ar, if_idx); + if (!vif) { dev_kfree_skb(skb); return; } @@ -1059,28 +1120,28 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) * Take lock to protect buffer counts and adaptive power throughput * state. */ - spin_lock_bh(&ar->lock); + spin_lock_bh(&vif->if_lock); - ar->net_stats.rx_packets++; - ar->net_stats.rx_bytes += packet->act_len; + vif->net_stats.rx_packets++; + vif->net_stats.rx_bytes += packet->act_len; - spin_unlock_bh(&ar->lock); + spin_unlock_bh(&vif->if_lock); - skb_put(skb, packet->act_len + HTC_HDR_LENGTH); - skb_pull(skb, HTC_HDR_LENGTH); ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, __func__, "rx ", skb->data, skb->len); - skb->dev = ar->net_dev; + skb->dev = vif->ndev; if (!test_bit(WMI_ENABLED, &ar->flag)) { if (EPPING_ALIGNMENT_PAD > 0) skb_pull(skb, EPPING_ALIGNMENT_PAD); - ath6kl_deliver_frames_to_nw_stack(ar->net_dev, skb); + ath6kl_deliver_frames_to_nw_stack(vif->ndev, skb); return; } + ath6kl_check_wow_status(ar); + if (ept == ar->ctrl_ep) { ath6kl_wmi_control_rx(ar->wmi, skb); return; @@ -1096,18 +1157,18 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) * that do not have LLC hdr. They are 16 bytes in size. * Allow these frames in the AP mode. */ - if (ar->nw_type != AP_NETWORK && + if (vif->nw_type != AP_NETWORK && ((packet->act_len < min_hdr_len) || (packet->act_len > WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH))) { ath6kl_info("frame len is too short or too long\n"); - ar->net_stats.rx_errors++; - ar->net_stats.rx_length_errors++; + vif->net_stats.rx_errors++; + vif->net_stats.rx_length_errors++; dev_kfree_skb(skb); return; } /* Get the Power save state of the STA */ - if (ar->nw_type == AP_NETWORK) { + if (vif->nw_type == AP_NETWORK) { meta_type = wmi_data_hdr_get_meta(dhdr); ps_state = !!((dhdr->info >> WMI_DATA_HDR_PS_SHIFT) & @@ -1129,7 +1190,7 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) } datap = (struct ethhdr *) (skb->data + offset); - conn = ath6kl_find_sta(ar, datap->h_source); + conn = ath6kl_find_sta(vif, datap->h_source); if (!conn) { dev_kfree_skb(skb); @@ -1160,12 +1221,13 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) while ((skbuff = skb_dequeue(&conn->psq)) != NULL) { spin_unlock_bh(&conn->psq_lock); - ath6kl_data_tx(skbuff, ar->net_dev); + ath6kl_data_tx(skbuff, vif->ndev); spin_lock_bh(&conn->psq_lock); } spin_unlock_bh(&conn->psq_lock); /* Clear the PVB for this STA */ - ath6kl_wmi_set_pvb_cmd(ar->wmi, conn->aid, 0); + ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, + conn->aid, 0); } } @@ -1215,12 +1277,12 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) return; } - if (!(ar->net_dev->flags & IFF_UP)) { + if (!(vif->ndev->flags & IFF_UP)) { dev_kfree_skb(skb); return; } - if (ar->nw_type == AP_NETWORK) { + if (vif->nw_type == AP_NETWORK) { datap = (struct ethhdr *) skb->data; if (is_multicast_ether_addr(datap->h_dest)) /* @@ -1235,8 +1297,7 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) * frame to it on the air else send the * frame up the stack. */ - struct ath6kl_sta *conn = NULL; - conn = ath6kl_find_sta(ar, datap->h_dest); + conn = ath6kl_find_sta(vif, datap->h_dest); if (conn && ar->intra_bss) { skb1 = skb; @@ -1247,18 +1308,23 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet) } } if (skb1) - ath6kl_data_tx(skb1, ar->net_dev); + ath6kl_data_tx(skb1, vif->ndev); + + if (skb == NULL) { + /* nothing to deliver up the stack */ + return; + } } datap = (struct ethhdr *) skb->data; if (is_unicast_ether_addr(datap->h_dest) && - aggr_process_recv_frm(ar->aggr_cntxt, tid, seq_no, + aggr_process_recv_frm(vif->aggr_cntxt, tid, seq_no, is_amsdu, skb)) /* aggregation code will handle the skb */ return; - ath6kl_deliver_frames_to_nw_stack(ar->net_dev, skb); + ath6kl_deliver_frames_to_nw_stack(vif->ndev, skb); } static void aggr_timeout(unsigned long arg) @@ -1336,9 +1402,10 @@ static void aggr_delete_tid_state(struct aggr_info *p_aggr, u8 tid) memset(stats, 0, sizeof(struct rxtid_stats)); } -void aggr_recv_addba_req_evt(struct ath6kl *ar, u8 tid, u16 seq_no, u8 win_sz) +void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no, + u8 win_sz) { - struct aggr_info *p_aggr = ar->aggr_cntxt; + struct aggr_info *p_aggr = vif->aggr_cntxt; struct rxtid *rxtid; struct rxtid_stats *stats; u16 hold_q_size; @@ -1405,9 +1472,9 @@ struct aggr_info *aggr_init(struct net_device *dev) return p_aggr; } -void aggr_recv_delba_req_evt(struct ath6kl *ar, u8 tid) +void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid) { - struct aggr_info *p_aggr = ar->aggr_cntxt; + struct aggr_info *p_aggr = vif->aggr_cntxt; struct rxtid *rxtid; if (!p_aggr) diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index a7de23cbd2c7..922344d3b262 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -21,7 +21,7 @@ #include "../regd.h" #include "../regd_common.h" -static int ath6kl_wmi_sync_point(struct wmi *wmi); +static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx); static const s32 wmi_rate_tbl[][2] = { /* {W/O SGI, with SGI} */ @@ -81,6 +81,26 @@ enum htc_endpoint_id ath6kl_wmi_get_control_ep(struct wmi *wmi) return wmi->ep_id; } +struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx) +{ + struct ath6kl_vif *vif, *found = NULL; + + if (WARN_ON(if_idx > (MAX_NUM_VIF - 1))) + return NULL; + + /* FIXME: Locking */ + spin_lock_bh(&ar->list_lock); + list_for_each_entry(vif, &ar->vif_list, list) { + if (vif->fw_vif_idx == if_idx) { + found = vif; + break; + } + } + spin_unlock_bh(&ar->list_lock); + + return found; +} + /* Performs DIX to 802.3 encapsulation for transmit packets. * Assumes the entire DIX header is contigous and that there is * enough room in the buffer for a 802.3 mac header and LLC+SNAP headers. @@ -162,12 +182,12 @@ static int ath6kl_wmi_meta_add(struct wmi *wmi, struct sk_buff *skb, int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb, u8 msg_type, bool more_data, enum wmi_data_hdr_data_type data_type, - u8 meta_ver, void *tx_meta_info) + u8 meta_ver, void *tx_meta_info, u8 if_idx) { struct wmi_data_hdr *data_hdr; int ret; - if (WARN_ON(skb == NULL)) + if (WARN_ON(skb == NULL || (if_idx > MAX_NUM_VIF - 1))) return -EINVAL; if (tx_meta_info) { @@ -189,7 +209,7 @@ int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb, WMI_DATA_HDR_MORE_MASK << WMI_DATA_HDR_MORE_SHIFT; data_hdr->info2 = cpu_to_le16(meta_ver << WMI_DATA_HDR_META_SHIFT); - data_hdr->info3 = 0; + data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK); return 0; } @@ -216,7 +236,8 @@ static u8 ath6kl_wmi_determine_user_priority(u8 *pkt, u32 layer2_pri) return ip_pri; } -int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, struct sk_buff *skb, +int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx, + struct sk_buff *skb, u32 layer2_priority, bool wmm_enabled, u8 *ac) { @@ -262,7 +283,12 @@ int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, struct sk_buff *skb, usr_pri = layer2_priority & 0x7; } - /* workaround for WMM S5 */ + /* + * workaround for WMM S5 + * + * FIXME: wmi->traffic_class is always 100 so this test doesn't + * make sense + */ if ((wmi->traffic_class == WMM_AC_VI) && ((usr_pri == 5) || (usr_pri == 4))) usr_pri = 1; @@ -284,7 +310,7 @@ int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, struct sk_buff *skb, cpu_to_le32(WMI_IMPLICIT_PSTREAM_INACTIVITY_INT); /* Implicit streams are created with TSID 0xFF */ cmd.tsid = WMI_IMPLICIT_PSTREAM; - ath6kl_wmi_create_pstream_cmd(wmi, &cmd); + ath6kl_wmi_create_pstream_cmd(wmi, if_idx, &cmd); } *ac = traffic_class; @@ -410,13 +436,14 @@ static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len) } static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap, - int len) + int len, struct ath6kl_vif *vif) { struct wmi_remain_on_chnl_event *ev; u32 freq; u32 dur; struct ieee80211_channel *chan; struct ath6kl *ar = wmi->parent_dev; + u32 id; if (len < sizeof(*ev)) return -EINVAL; @@ -426,26 +453,29 @@ static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap, dur = le32_to_cpu(ev->duration); ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: freq=%u dur=%u\n", freq, dur); - chan = ieee80211_get_channel(ar->wdev->wiphy, freq); + chan = ieee80211_get_channel(ar->wiphy, freq); if (!chan) { ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: Unknown channel " "(freq=%u)\n", freq); return -EINVAL; } - cfg80211_ready_on_channel(ar->net_dev, 1, chan, NL80211_CHAN_NO_HT, + id = vif->last_roc_id; + cfg80211_ready_on_channel(vif->ndev, id, chan, NL80211_CHAN_NO_HT, dur, GFP_ATOMIC); return 0; } static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi, - u8 *datap, int len) + u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_cancel_remain_on_chnl_event *ev; u32 freq; u32 dur; struct ieee80211_channel *chan; struct ath6kl *ar = wmi->parent_dev; + u32 id; if (len < sizeof(*ev)) return -EINVAL; @@ -455,23 +485,29 @@ static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi, dur = le32_to_cpu(ev->duration); ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl: freq=%u dur=%u " "status=%u\n", freq, dur, ev->status); - chan = ieee80211_get_channel(ar->wdev->wiphy, freq); + chan = ieee80211_get_channel(ar->wiphy, freq); if (!chan) { ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl: Unknown " "channel (freq=%u)\n", freq); return -EINVAL; } - cfg80211_remain_on_channel_expired(ar->net_dev, 1, chan, + if (vif->last_cancel_roc_id && + vif->last_cancel_roc_id + 1 == vif->last_roc_id) + id = vif->last_cancel_roc_id; /* event for cancel command */ + else + id = vif->last_roc_id; /* timeout on uncanceled r-o-c */ + vif->last_cancel_roc_id = 0; + cfg80211_remain_on_channel_expired(vif->ndev, id, chan, NL80211_CHAN_NO_HT, GFP_ATOMIC); return 0; } -static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_tx_status_event *ev; u32 id; - struct ath6kl *ar = wmi->parent_dev; if (len < sizeof(*ev)) return -EINVAL; @@ -481,7 +517,7 @@ static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len) ath6kl_dbg(ATH6KL_DBG_WMI, "tx_status: id=%x ack_status=%u\n", id, ev->ack_status); if (wmi->last_mgmt_tx_frame) { - cfg80211_mgmt_tx_status(ar->net_dev, id, + cfg80211_mgmt_tx_status(vif->ndev, id, wmi->last_mgmt_tx_frame, wmi->last_mgmt_tx_frame_len, !!ev->ack_status, GFP_ATOMIC); @@ -493,12 +529,12 @@ static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len) return 0; } -static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_p2p_rx_probe_req_event *ev; u32 freq; u16 dlen; - struct ath6kl *ar = wmi->parent_dev; if (len < sizeof(*ev)) return -EINVAL; @@ -513,10 +549,10 @@ static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len) } ath6kl_dbg(ATH6KL_DBG_WMI, "rx_probe_req: len=%u freq=%u " "probe_req_report=%d\n", - dlen, freq, ar->probe_req_report); + dlen, freq, vif->probe_req_report); - if (ar->probe_req_report || ar->nw_type == AP_NETWORK) - cfg80211_rx_mgmt(ar->net_dev, freq, ev->data, dlen, GFP_ATOMIC); + if (vif->probe_req_report || vif->nw_type == AP_NETWORK) + cfg80211_rx_mgmt(vif->ndev, freq, ev->data, dlen, GFP_ATOMIC); return 0; } @@ -536,12 +572,12 @@ static int ath6kl_wmi_p2p_capabilities_event_rx(u8 *datap, int len) return 0; } -static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_rx_action_event *ev; u32 freq; u16 dlen; - struct ath6kl *ar = wmi->parent_dev; if (len < sizeof(*ev)) return -EINVAL; @@ -555,7 +591,7 @@ static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len) return -EINVAL; } ath6kl_dbg(ATH6KL_DBG_WMI, "rx_action: len=%u freq=%u\n", dlen, freq); - cfg80211_rx_mgmt(ar->net_dev, freq, ev->data, dlen, GFP_ATOMIC); + cfg80211_rx_mgmt(vif->ndev, freq, ev->data, dlen, GFP_ATOMIC); return 0; } @@ -620,7 +656,8 @@ static inline struct sk_buff *ath6kl_wmi_get_new_buf(u32 size) } /* Send a "simple" wmi command -- one with no arguments */ -static int ath6kl_wmi_simple_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id) +static int ath6kl_wmi_simple_cmd(struct wmi *wmi, u8 if_idx, + enum wmi_cmd_id cmd_id) { struct sk_buff *skb; int ret; @@ -629,7 +666,7 @@ static int ath6kl_wmi_simple_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id) if (!skb) return -ENOMEM; - ret = ath6kl_wmi_cmd_send(wmi, skb, cmd_id, NO_SYNC_WMIFLAG); + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, cmd_id, NO_SYNC_WMIFLAG); return ret; } @@ -641,7 +678,6 @@ static int ath6kl_wmi_ready_event_rx(struct wmi *wmi, u8 *datap, int len) if (len < sizeof(struct wmi_ready_event_2)) return -EINVAL; - wmi->ready = true; ath6kl_ready_event(wmi->parent_dev, ev->mac_addr, le32_to_cpu(ev->sw_version), le32_to_cpu(ev->abi_version)); @@ -673,32 +709,73 @@ int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi) cmd->info.params.roam_rssi_floor = DEF_LRSSI_ROAM_FLOOR; cmd->roam_ctrl = WMI_SET_LRSSI_SCAN_PARAMS; - ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_ROAM_CTRL_CMDID, NO_SYNC_WMIFLAG); + ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID, + NO_SYNC_WMIFLAG); return 0; } -static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len) +int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid) +{ + struct sk_buff *skb; + struct roam_ctrl_cmd *cmd; + + skb = ath6kl_wmi_get_new_buf(sizeof(*cmd)); + if (!skb) + return -ENOMEM; + + cmd = (struct roam_ctrl_cmd *) skb->data; + memset(cmd, 0, sizeof(*cmd)); + + memcpy(cmd->info.bssid, bssid, ETH_ALEN); + cmd->roam_ctrl = WMI_FORCE_ROAM; + + ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid); + return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID, + NO_SYNC_WMIFLAG); +} + +int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode) +{ + struct sk_buff *skb; + struct roam_ctrl_cmd *cmd; + + skb = ath6kl_wmi_get_new_buf(sizeof(*cmd)); + if (!skb) + return -ENOMEM; + + cmd = (struct roam_ctrl_cmd *) skb->data; + memset(cmd, 0, sizeof(*cmd)); + + cmd->info.roam_mode = mode; + cmd->roam_ctrl = WMI_SET_ROAM_MODE; + + ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode); + return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID, + NO_SYNC_WMIFLAG); +} + +static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_connect_event *ev; u8 *pie, *peie; - struct ath6kl *ar = wmi->parent_dev; if (len < sizeof(struct wmi_connect_event)) return -EINVAL; ev = (struct wmi_connect_event *) datap; - if (ar->nw_type == AP_NETWORK) { + if (vif->nw_type == AP_NETWORK) { /* AP mode start/STA connected event */ - struct net_device *dev = ar->net_dev; + struct net_device *dev = vif->ndev; if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) { ath6kl_dbg(ATH6KL_DBG_WMI, "%s: freq %d bssid %pM " "(AP started)\n", __func__, le16_to_cpu(ev->u.ap_bss.ch), ev->u.ap_bss.bssid); ath6kl_connect_ap_mode_bss( - ar, le16_to_cpu(ev->u.ap_bss.ch)); + vif, le16_to_cpu(ev->u.ap_bss.ch)); } else { ath6kl_dbg(ATH6KL_DBG_WMI, "%s: aid %u mac_addr %pM " "auth=%u keymgmt=%u cipher=%u apsd_info=%u " @@ -710,7 +787,7 @@ static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len) le16_to_cpu(ev->u.ap_sta.cipher), ev->u.ap_sta.apsd_info); ath6kl_connect_ap_mode_sta( - ar, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr, + vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr, ev->u.ap_sta.keymgmt, le16_to_cpu(ev->u.ap_sta.cipher), ev->u.ap_sta.auth, ev->assoc_req_len, @@ -755,7 +832,7 @@ static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len) pie += pie[1] + 2; } - ath6kl_connect_event(wmi->parent_dev, le16_to_cpu(ev->u.sta.ch), + ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid, le16_to_cpu(ev->u.sta.listen_intvl), le16_to_cpu(ev->u.sta.beacon_intvl), @@ -834,14 +911,15 @@ static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len) alpha2[0] = country->isoName[0]; alpha2[1] = country->isoName[1]; - regulatory_hint(wmi->parent_dev->wdev->wiphy, alpha2); + regulatory_hint(wmi->parent_dev->wiphy, alpha2); ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n", alpha2[0], alpha2[1]); } } -static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_disconnect_event *ev; wmi->traffic_class = 100; @@ -857,10 +935,8 @@ static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len) ev->disconn_reason, ev->assoc_resp_len); wmi->is_wmm_enabled = false; - wmi->pair_crypto_type = NONE_CRYPT; - wmi->grp_crypto_type = NONE_CRYPT; - ath6kl_disconnect_event(wmi->parent_dev, ev->disconn_reason, + ath6kl_disconnect_event(vif, ev->disconn_reason, ev->bssid, ev->assoc_resp_len, ev->assoc_info, le16_to_cpu(ev->proto_reason_status)); @@ -886,7 +962,8 @@ static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len) return 0; } -static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_tkip_micerr_event *ev; @@ -895,12 +972,13 @@ static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len) ev = (struct wmi_tkip_micerr_event *) datap; - ath6kl_tkip_micerr_event(wmi->parent_dev, ev->key_id, ev->is_mcast); + ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast); return 0; } -static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_bss_info_hdr2 *bih; u8 *buf; @@ -927,26 +1005,27 @@ static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len) return 0; /* Only update BSS table for now */ if (bih->frame_type == BEACON_FTYPE && - test_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag)) { - clear_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag); - ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); + test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) { + clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); + ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, + NONE_BSS_FILTER, 0); } - channel = ieee80211_get_channel(ar->wdev->wiphy, le16_to_cpu(bih->ch)); + channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch)); if (channel == NULL) return -EINVAL; if (len < 8 + 2 + 2) return -EINVAL; - if (bih->frame_type == BEACON_FTYPE && test_bit(CONNECTED, &ar->flag) && - memcmp(bih->bssid, ar->bssid, ETH_ALEN) == 0) { + if (bih->frame_type == BEACON_FTYPE && test_bit(CONNECTED, &vif->flags) + && memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) { const u8 *tim; tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2, len - 8 - 2 - 2); if (tim && tim[1] >= 2) { - ar->assoc_bss_dtim_period = tim[3]; - set_bit(DTIM_PERIOD_AVAIL, &ar->flag); + vif->assoc_bss_dtim_period = tim[3]; + set_bit(DTIM_PERIOD_AVAIL, &vif->flags); } } @@ -966,7 +1045,7 @@ static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len) IEEE80211_STYPE_BEACON); memset(mgmt->da, 0xff, ETH_ALEN); } else { - struct net_device *dev = ar->net_dev; + struct net_device *dev = vif->ndev; mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); @@ -979,7 +1058,7 @@ static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len) memcpy(&mgmt->u.beacon, buf, len); - bss = cfg80211_inform_bss_frame(ar->wdev->wiphy, channel, mgmt, + bss = cfg80211_inform_bss_frame(ar->wiphy, channel, mgmt, 24 + len, (bih->snr - 95) * 100, GFP_ATOMIC); kfree(mgmt); @@ -1094,20 +1173,21 @@ static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len) return 0; } -static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_scan_complete_event *ev; ev = (struct wmi_scan_complete_event *) datap; - ath6kl_scan_complete_evt(wmi->parent_dev, a_sle32_to_cpu(ev->status)); + ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status)); wmi->is_probe_ssid = false; return 0; } static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap, - int len) + int len, struct ath6kl_vif *vif) { struct wmi_neighbor_report_event *ev; u8 i; @@ -1125,7 +1205,7 @@ static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap, ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n", i + 1, ev->num_neighbors, ev->neighbor[i].bssid, ev->neighbor[i].bss_flags); - cfg80211_pmksa_candidate_notify(wmi->parent_dev->net_dev, i, + cfg80211_pmksa_candidate_notify(vif->ndev, i, ev->neighbor[i].bssid, !!(ev->neighbor[i].bss_flags & WMI_PREAUTH_CAPABLE_BSS), @@ -1166,9 +1246,10 @@ static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len) return 0; } -static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { - ath6kl_tgt_stats_event(wmi->parent_dev, datap, len); + ath6kl_tgt_stats_event(vif, datap, len); return 0; } @@ -1222,7 +1303,7 @@ static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi, cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data; memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd)); - return ath6kl_wmi_cmd_send(wmi, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID, + return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID, NO_SYNC_WMIFLAG); } @@ -1322,7 +1403,8 @@ static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap, return 0; } -static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_cac_event *reply; struct ieee80211_tspec_ie *ts; @@ -1343,7 +1425,8 @@ static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len) tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) & IEEE80211_WMM_IE_TSPEC_TID_MASK; - ath6kl_wmi_delete_pstream_cmd(wmi, reply->ac, tsid); + ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx, + reply->ac, tsid); } else if (reply->cac_indication == CAC_INDICATION_NO_RESP) { /* * Following assumes that there is only one outstanding @@ -1358,7 +1441,8 @@ static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len) break; } if (index < (sizeof(active_tsids) * 8)) - ath6kl_wmi_delete_pstream_cmd(wmi, reply->ac, index); + ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx, + reply->ac, index); } /* @@ -1403,7 +1487,7 @@ static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi, cmd = (struct wmi_snr_threshold_params_cmd *) skb->data; memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd)); - return ath6kl_wmi_cmd_send(wmi, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID, + return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID, NO_SYNC_WMIFLAG); } @@ -1528,14 +1612,15 @@ static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len) return 0; } -int ath6kl_wmi_cmd_send(struct wmi *wmi, struct sk_buff *skb, +int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb, enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag) { struct wmi_cmd_hdr *cmd_hdr; enum htc_endpoint_id ep_id = wmi->ep_id; int ret; + u16 info1; - if (WARN_ON(skb == NULL)) + if (WARN_ON(skb == NULL || (if_idx > (MAX_NUM_VIF - 1)))) return -EINVAL; ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n", @@ -1554,19 +1639,20 @@ int ath6kl_wmi_cmd_send(struct wmi *wmi, struct sk_buff *skb, * Make sure all data currently queued is transmitted before * the cmd execution. Establish a new sync point. */ - ath6kl_wmi_sync_point(wmi); + ath6kl_wmi_sync_point(wmi, if_idx); } skb_push(skb, sizeof(struct wmi_cmd_hdr)); cmd_hdr = (struct wmi_cmd_hdr *) skb->data; cmd_hdr->cmd_id = cpu_to_le16(cmd_id); - cmd_hdr->info1 = 0; /* added for virtual interface */ + info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK; + cmd_hdr->info1 = cpu_to_le16(info1); /* Only for OPT_TX_CMD, use BE endpoint. */ if (cmd_id == WMI_OPT_TX_FRAME_CMDID) { ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE, - false, false, 0, NULL); + false, false, 0, NULL, if_idx); if (ret) { dev_kfree_skb(skb); return ret; @@ -1582,13 +1668,14 @@ int ath6kl_wmi_cmd_send(struct wmi *wmi, struct sk_buff *skb, * Make sure all new data queued waits for the command to * execute. Establish a new sync point. */ - ath6kl_wmi_sync_point(wmi); + ath6kl_wmi_sync_point(wmi, if_idx); } return 0; } -int ath6kl_wmi_connect_cmd(struct wmi *wmi, enum network_type nw_type, +int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx, + enum network_type nw_type, enum dot11_auth_mode dot11_auth_mode, enum auth_mode auth_mode, enum crypto_type pairwise_crypto, @@ -1639,15 +1726,14 @@ int ath6kl_wmi_connect_cmd(struct wmi *wmi, enum network_type nw_type, if (bssid != NULL) memcpy(cc->bssid, bssid, ETH_ALEN); - wmi->pair_crypto_type = pairwise_crypto; - wmi->grp_crypto_type = group_crypto; - - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_CONNECT_CMDID, NO_SYNC_WMIFLAG); + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID, + NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 *bssid, u16 channel) +int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid, + u16 channel) { struct sk_buff *skb; struct wmi_reconnect_cmd *cc; @@ -1668,13 +1754,13 @@ int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 *bssid, u16 channel) if (bssid != NULL) memcpy(cc->bssid, bssid, ETH_ALEN); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_RECONNECT_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_disconnect_cmd(struct wmi *wmi) +int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx) { int ret; @@ -1683,12 +1769,13 @@ int ath6kl_wmi_disconnect_cmd(struct wmi *wmi) wmi->traffic_class = 100; /* Disconnect command does not need to do a SYNC before. */ - ret = ath6kl_wmi_simple_cmd(wmi, WMI_DISCONNECT_CMDID); + ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID); return ret; } -int ath6kl_wmi_startscan_cmd(struct wmi *wmi, enum wmi_scan_type scan_type, +int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx, + enum wmi_scan_type scan_type, u32 force_fgscan, u32 is_legacy, u32 home_dwell_time, u32 force_scan_interval, s8 num_chan, u16 *ch_list) @@ -1724,13 +1811,14 @@ int ath6kl_wmi_startscan_cmd(struct wmi *wmi, enum wmi_scan_type scan_type, for (i = 0; i < num_chan; i++) sc->ch_list[i] = cpu_to_le16(ch_list[i]); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_START_SCAN_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u16 fg_start_sec, +int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx, + u16 fg_start_sec, u16 fg_end_sec, u16 bg_sec, u16 minact_chdw_msec, u16 maxact_chdw_msec, u16 pas_chdw_msec, u8 short_scan_ratio, @@ -1757,12 +1845,12 @@ int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u16 fg_start_sec, sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time); sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_SCAN_PARAMS_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 filter, u32 ie_mask) +int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask) { struct sk_buff *skb; struct wmi_bss_filter_cmd *cmd; @@ -1779,12 +1867,12 @@ int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 filter, u32 ie_mask) cmd->bss_filter = filter; cmd->ie_mask = cpu_to_le32(ie_mask); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_BSS_FILTER_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 index, u8 flag, +int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag, u8 ssid_len, u8 *ssid) { struct sk_buff *skb; @@ -1816,12 +1904,13 @@ int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 index, u8 flag, cmd->ssid_len = ssid_len; memcpy(cmd->ssid, ssid, ssid_len); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_PROBED_SSID_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u16 listen_interval, +int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx, + u16 listen_interval, u16 listen_beacons) { struct sk_buff *skb; @@ -1836,12 +1925,12 @@ int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u16 listen_interval, cmd->listen_intvl = cpu_to_le16(listen_interval); cmd->num_beacons = cpu_to_le16(listen_beacons); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_LISTEN_INT_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 pwr_mode) +int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode) { struct sk_buff *skb; struct wmi_power_mode_cmd *cmd; @@ -1855,12 +1944,12 @@ int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 pwr_mode) cmd->pwr_mode = pwr_mode; wmi->pwr_mode = pwr_mode; - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_POWER_MODE_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u16 idle_period, +int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period, u16 ps_poll_num, u16 dtim_policy, u16 tx_wakeup_policy, u16 num_tx_to_wakeup, u16 ps_fail_event_policy) @@ -1881,12 +1970,12 @@ int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u16 idle_period, pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup); pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_POWER_PARAMS_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 timeout) +int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout) { struct sk_buff *skb; struct wmi_disc_timeout_cmd *cmd; @@ -1899,15 +1988,20 @@ int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 timeout) cmd = (struct wmi_disc_timeout_cmd *) skb->data; cmd->discon_timeout = timeout; - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_DISC_TIMEOUT_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID, NO_SYNC_WMIFLAG); + + if (ret == 0) + ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout); + return ret; } -int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 key_index, +int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index, enum crypto_type key_type, u8 key_usage, u8 key_len, - u8 *key_rsc, u8 *key_material, + u8 *key_rsc, unsigned int key_rsc_len, + u8 *key_material, u8 key_op_ctrl, u8 *mac_addr, enum wmi_sync_flag sync_flag) { @@ -1920,7 +2014,7 @@ int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 key_index, key_index, key_type, key_usage, key_len, key_op_ctrl); if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) || - (key_material == NULL)) + (key_material == NULL) || key_rsc_len > 8) return -EINVAL; if ((WEP_CRYPT != key_type) && (NULL == key_rsc)) @@ -1938,20 +2032,20 @@ int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 key_index, memcpy(cmd->key, key_material, key_len); if (key_rsc != NULL) - memcpy(cmd->key_rsc, key_rsc, sizeof(cmd->key_rsc)); + memcpy(cmd->key_rsc, key_rsc, key_rsc_len); cmd->key_op_ctrl = key_op_ctrl; if (mac_addr) memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_ADD_CIPHER_KEY_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID, sync_flag); return ret; } -int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 *krk) +int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, u8 *krk) { struct sk_buff *skb; struct wmi_add_krk_cmd *cmd; @@ -1964,12 +2058,13 @@ int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 *krk) cmd = (struct wmi_add_krk_cmd *) skb->data; memcpy(cmd->krk, krk, WMI_KRK_LEN); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_ADD_KRK_CMDID, NO_SYNC_WMIFLAG); + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID, + NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 key_index) +int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index) { struct sk_buff *skb; struct wmi_delete_cipher_key_cmd *cmd; @@ -1985,13 +2080,13 @@ int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 key_index) cmd = (struct wmi_delete_cipher_key_cmd *) skb->data; cmd->key_index = key_index; - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_DELETE_CIPHER_KEY_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, const u8 *bssid, +int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid, const u8 *pmkid, bool set) { struct sk_buff *skb; @@ -2018,14 +2113,14 @@ int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, const u8 *bssid, cmd->enable = PMKID_DISABLE; } - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_PMKID_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID, NO_SYNC_WMIFLAG); return ret; } static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb, - enum htc_endpoint_id ep_id) + enum htc_endpoint_id ep_id, u8 if_idx) { struct wmi_data_hdr *data_hdr; int ret; @@ -2037,14 +2132,14 @@ static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb, data_hdr = (struct wmi_data_hdr *) skb->data; data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT; - data_hdr->info3 = 0; + data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK); ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id); return ret; } -static int ath6kl_wmi_sync_point(struct wmi *wmi) +static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx) { struct sk_buff *skb; struct wmi_sync_cmd *cmd; @@ -2100,7 +2195,7 @@ static int ath6kl_wmi_sync_point(struct wmi *wmi) * Send sync cmd followed by sync data messages on all * endpoints being used */ - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SYNCHRONIZE_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID, NO_SYNC_WMIFLAG); if (ret) @@ -2119,7 +2214,7 @@ static int ath6kl_wmi_sync_point(struct wmi *wmi) traffic_class); ret = ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb, - ep_id); + ep_id, if_idx); if (ret) break; @@ -2142,7 +2237,7 @@ free_skb: return ret; } -int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, +int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx, struct wmi_create_pstream_cmd *params) { struct sk_buff *skb; @@ -2231,12 +2326,13 @@ int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, ath6kl_indicate_tx_activity(wmi->parent_dev, params->traffic_class, true); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_CREATE_PSTREAM_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 traffic_class, u8 tsid) +int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class, + u8 tsid) { struct sk_buff *skb; struct wmi_delete_pstream_cmd *cmd; @@ -2272,7 +2368,7 @@ int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 traffic_class, u8 tsid) "sending delete_pstream_cmd: traffic class: %d tsid=%d\n", traffic_class, tsid); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_DELETE_PSTREAM_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID, SYNC_BEFORE_WMIFLAG); spin_lock_bh(&wmi->lock); @@ -2311,17 +2407,173 @@ int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, struct wmi_set_ip_cmd *ip_cmd) cmd = (struct wmi_set_ip_cmd *) skb->data; memcpy(cmd, ip_cmd, sizeof(struct wmi_set_ip_cmd)); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_IP_CMDID, NO_SYNC_WMIFLAG); + ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_IP_CMDID, + NO_SYNC_WMIFLAG); + return ret; +} + +static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi) +{ + u16 active_tsids; + u8 stream_exist; + int i; + + /* + * Relinquish credits from all implicitly created pstreams + * since when we go to sleep. If user created explicit + * thinstreams exists with in a fatpipe leave them intact + * for the user to delete. + */ + spin_lock_bh(&wmi->lock); + stream_exist = wmi->fat_pipe_exist; + spin_unlock_bh(&wmi->lock); + + for (i = 0; i < WMM_NUM_AC; i++) { + if (stream_exist & (1 << i)) { + + /* + * FIXME: Is this lock & unlock inside + * for loop correct? may need rework. + */ + spin_lock_bh(&wmi->lock); + active_tsids = wmi->stream_exist_for_ac[i]; + spin_unlock_bh(&wmi->lock); + + /* + * If there are no user created thin streams + * delete the fatpipe + */ + if (!active_tsids) { + stream_exist &= ~(1 << i); + /* + * Indicate inactivity to driver layer for + * this fatpipe (pstream) + */ + ath6kl_indicate_tx_activity(wmi->parent_dev, + i, false); + } + } + } + + /* FIXME: Can we do this assignment without locking ? */ + spin_lock_bh(&wmi->lock); + wmi->fat_pipe_exist = stream_exist; + spin_unlock_bh(&wmi->lock); +} + +int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx, + enum ath6kl_host_mode host_mode) +{ + struct sk_buff *skb; + struct wmi_set_host_sleep_mode_cmd *cmd; + int ret; + + if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) && + (host_mode != ATH6KL_HOST_MODE_AWAKE)) { + ath6kl_err("invalid host sleep mode: %d\n", host_mode); + return -EINVAL; + } + + skb = ath6kl_wmi_get_new_buf(sizeof(*cmd)); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data; + + if (host_mode == ATH6KL_HOST_MODE_ASLEEP) { + ath6kl_wmi_relinquish_implicit_pstream_credits(wmi); + cmd->asleep = cpu_to_le32(1); + } else + cmd->awake = cpu_to_le32(1); + + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, + WMI_SET_HOST_SLEEP_MODE_CMDID, + NO_SYNC_WMIFLAG); return ret; } -static int ath6kl_wmi_get_wow_list_event_rx(struct wmi *wmi, u8 * datap, - int len) +int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx, + enum ath6kl_wow_mode wow_mode, + u32 filter, u16 host_req_delay) { - if (len < sizeof(struct wmi_get_wow_list_reply)) + struct sk_buff *skb; + struct wmi_set_wow_mode_cmd *cmd; + int ret; + + if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) && + wow_mode != ATH6KL_WOW_MODE_DISABLE) { + ath6kl_err("invalid wow mode: %d\n", wow_mode); return -EINVAL; + } - return 0; + skb = ath6kl_wmi_get_new_buf(sizeof(*cmd)); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_set_wow_mode_cmd *) skb->data; + cmd->enable_wow = cpu_to_le32(wow_mode); + cmd->filter = cpu_to_le32(filter); + cmd->host_req_delay = cpu_to_le16(host_req_delay); + + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID, + NO_SYNC_WMIFLAG); + return ret; +} + +int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx, + u8 list_id, u8 filter_size, + u8 filter_offset, u8 *filter, u8 *mask) +{ + struct sk_buff *skb; + struct wmi_add_wow_pattern_cmd *cmd; + u16 size; + u8 *filter_mask; + int ret; + + /* + * Allocate additional memory in the buffer to hold + * filter and mask value, which is twice of filter_size. + */ + size = sizeof(*cmd) + (2 * filter_size); + + skb = ath6kl_wmi_get_new_buf(size); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_add_wow_pattern_cmd *) skb->data; + cmd->filter_list_id = list_id; + cmd->filter_size = filter_size; + cmd->filter_offset = filter_offset; + + memcpy(cmd->filter, filter, filter_size); + + filter_mask = (u8 *) (cmd->filter + filter_size); + memcpy(filter_mask, mask, filter_size); + + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID, + NO_SYNC_WMIFLAG); + + return ret; +} + +int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx, + u16 list_id, u16 filter_id) +{ + struct sk_buff *skb; + struct wmi_del_wow_pattern_cmd *cmd; + int ret; + + skb = ath6kl_wmi_get_new_buf(sizeof(*cmd)); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_del_wow_pattern_cmd *) skb->data; + cmd->filter_list_id = cpu_to_le16(list_id); + cmd->filter_id = cpu_to_le16(filter_id); + + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID, + NO_SYNC_WMIFLAG); + return ret; } static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb, @@ -2336,7 +2588,7 @@ static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb, cmd_hdr = (struct wmix_cmd_hdr *) skb->data; cmd_hdr->cmd_id = cpu_to_le32(cmd_id); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_EXTENSION_CMDID, sync_flag); + ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag); return ret; } @@ -2379,12 +2631,12 @@ int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config) return ret; } -int ath6kl_wmi_get_stats_cmd(struct wmi *wmi) +int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx) { - return ath6kl_wmi_simple_cmd(wmi, WMI_GET_STATISTICS_CMDID); + return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID); } -int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 dbM) +int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM) { struct sk_buff *skb; struct wmi_set_tx_pwr_cmd *cmd; @@ -2397,18 +2649,24 @@ int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 dbM) cmd = (struct wmi_set_tx_pwr_cmd *) skb->data; cmd->dbM = dbM; - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_TX_PWR_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi) +int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx) { - return ath6kl_wmi_simple_cmd(wmi, WMI_GET_TX_PWR_CMDID); + return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID); } -int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 status, u8 preamble_policy) +int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi) +{ + return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID); +} + +int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status, + u8 preamble_policy) { struct sk_buff *skb; struct wmi_set_lpreamble_cmd *cmd; @@ -2422,7 +2680,7 @@ int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 status, u8 preamble_policy) cmd->status = status; cmd->preamble_policy = preamble_policy; - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_LPREAMBLE_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID, NO_SYNC_WMIFLAG); return ret; } @@ -2440,11 +2698,12 @@ int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold) cmd = (struct wmi_set_rts_cmd *) skb->data; cmd->threshold = cpu_to_le16(threshold); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_RTS_CMDID, NO_SYNC_WMIFLAG); + ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID, + NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, enum wmi_txop_cfg cfg) +int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg) { struct sk_buff *skb; struct wmi_set_wmm_txop_cmd *cmd; @@ -2460,12 +2719,13 @@ int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, enum wmi_txop_cfg cfg) cmd = (struct wmi_set_wmm_txop_cmd *) skb->data; cmd->txop_enable = cfg; - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_WMM_TXOP_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 keep_alive_intvl) +int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx, + u8 keep_alive_intvl) { struct sk_buff *skb; struct wmi_set_keepalive_cmd *cmd; @@ -2477,10 +2737,13 @@ int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 keep_alive_intvl) cmd = (struct wmi_set_keepalive_cmd *) skb->data; cmd->keep_alive_intvl = keep_alive_intvl; - wmi->keep_alive_intvl = keep_alive_intvl; - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_KEEPALIVE_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID, NO_SYNC_WMIFLAG); + + if (ret == 0) + ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl); + return ret; } @@ -2495,7 +2758,7 @@ int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len) memcpy(skb->data, buf, len); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG); + ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG); return ret; } @@ -2528,28 +2791,31 @@ static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap, return 0; } -static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap; - aggr_recv_addba_req_evt(wmi->parent_dev, cmd->tid, + aggr_recv_addba_req_evt(vif, cmd->tid, le16_to_cpu(cmd->st_seq_no), cmd->win_sz); return 0; } -static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap; - aggr_recv_delba_req_evt(wmi->parent_dev, cmd->tid); + aggr_recv_delba_req_evt(vif, cmd->tid); return 0; } /* AP mode functions */ -int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, struct wmi_connect_cmd *p) +int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx, + struct wmi_connect_cmd *p) { struct sk_buff *skb; struct wmi_connect_cmd *cm; @@ -2562,7 +2828,7 @@ int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, struct wmi_connect_cmd *p) cm = (struct wmi_connect_cmd *) skb->data; memcpy(cm, p, sizeof(*cm)); - res = ath6kl_wmi_cmd_send(wmip, skb, WMI_AP_CONFIG_COMMIT_CMDID, + res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID, NO_SYNC_WMIFLAG); ath6kl_dbg(ATH6KL_DBG_WMI, "%s: nw_type=%u auth_mode=%u ch=%u " "ctrl_flags=0x%x-> res=%d\n", @@ -2571,7 +2837,8 @@ int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, struct wmi_connect_cmd *p) return res; } -int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 cmd, const u8 *mac, u16 reason) +int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac, + u16 reason) { struct sk_buff *skb; struct wmi_ap_set_mlme_cmd *cm; @@ -2585,11 +2852,12 @@ int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 cmd, const u8 *mac, u16 reason) cm->reason = cpu_to_le16(reason); cm->cmd = cmd; - return ath6kl_wmi_cmd_send(wmip, skb, WMI_AP_SET_MLME_CMDID, + return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID, NO_SYNC_WMIFLAG); } -static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { struct wmi_pspoll_event *ev; @@ -2598,19 +2866,21 @@ static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len) ev = (struct wmi_pspoll_event *) datap; - ath6kl_pspoll_event(wmi->parent_dev, le16_to_cpu(ev->aid)); + ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid)); return 0; } -static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len) +static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len, + struct ath6kl_vif *vif) { - ath6kl_dtimexpiry_event(wmi->parent_dev); + ath6kl_dtimexpiry_event(vif); return 0; } -int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u16 aid, bool flag) +int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid, + bool flag) { struct sk_buff *skb; struct wmi_ap_set_pvb_cmd *cmd; @@ -2625,13 +2895,14 @@ int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u16 aid, bool flag) cmd->rsvd = cpu_to_le16(0); cmd->flag = cpu_to_le32(flag); - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_AP_SET_PVB_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID, NO_SYNC_WMIFLAG); return 0; } -int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 rx_meta_ver, +int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx, + u8 rx_meta_ver, bool rx_dot11_hdr, bool defrag_on_host) { struct sk_buff *skb; @@ -2648,14 +2919,14 @@ int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 rx_meta_ver, cmd->meta_ver = rx_meta_ver; /* Delete the local aggr state, on host */ - ret = ath6kl_wmi_cmd_send(wmi, skb, WMI_RX_FRAME_FORMAT_CMDID, + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID, NO_SYNC_WMIFLAG); return ret; } -int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 mgmt_frm_type, const u8 *ie, - u8 ie_len) +int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type, + const u8 *ie, u8 ie_len) { struct sk_buff *skb; struct wmi_set_appie_cmd *p; @@ -2670,7 +2941,7 @@ int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 mgmt_frm_type, const u8 *ie, p->mgmt_frm_type = mgmt_frm_type; p->ie_len = ie_len; memcpy(p->ie_info, ie, ie_len); - return ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_APPIE_CMDID, + return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID, NO_SYNC_WMIFLAG); } @@ -2688,11 +2959,11 @@ int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable) cmd = (struct wmi_disable_11b_rates_cmd *) skb->data; cmd->disable = disable ? 1 : 0; - return ath6kl_wmi_cmd_send(wmi, skb, WMI_DISABLE_11B_RATES_CMDID, + return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID, NO_SYNC_WMIFLAG); } -int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u32 freq, u32 dur) +int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur) { struct sk_buff *skb; struct wmi_remain_on_chnl_cmd *p; @@ -2706,12 +2977,12 @@ int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u32 freq, u32 dur) p = (struct wmi_remain_on_chnl_cmd *) skb->data; p->freq = cpu_to_le32(freq); p->duration = cpu_to_le32(dur); - return ath6kl_wmi_cmd_send(wmi, skb, WMI_REMAIN_ON_CHNL_CMDID, + return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID, NO_SYNC_WMIFLAG); } -int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u32 id, u32 freq, u32 wait, - const u8 *data, u16 data_len) +int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq, + u32 wait, const u8 *data, u16 data_len) { struct sk_buff *skb; struct wmi_send_action_cmd *p; @@ -2731,6 +3002,7 @@ int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u32 id, u32 freq, u32 wait, } kfree(wmi->last_mgmt_tx_frame); + memcpy(buf, data, data_len); wmi->last_mgmt_tx_frame = buf; wmi->last_mgmt_tx_frame_len = data_len; @@ -2742,13 +3014,13 @@ int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u32 id, u32 freq, u32 wait, p->wait = cpu_to_le32(wait); p->len = cpu_to_le16(data_len); memcpy(p->data, data, data_len); - return ath6kl_wmi_cmd_send(wmi, skb, WMI_SEND_ACTION_CMDID, + return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID, NO_SYNC_WMIFLAG); } -int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u32 freq, - const u8 *dst, - const u8 *data, u16 data_len) +int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq, + const u8 *dst, const u8 *data, + u16 data_len) { struct sk_buff *skb; struct wmi_p2p_probe_response_cmd *p; @@ -2764,11 +3036,12 @@ int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u32 freq, memcpy(p->destination_addr, dst, ETH_ALEN); p->len = cpu_to_le16(data_len); memcpy(p->data, data, data_len); - return ath6kl_wmi_cmd_send(wmi, skb, WMI_SEND_PROBE_RESPONSE_CMDID, + return ath6kl_wmi_cmd_send(wmi, if_idx, skb, + WMI_SEND_PROBE_RESPONSE_CMDID, NO_SYNC_WMIFLAG); } -int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, bool enable) +int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable) { struct sk_buff *skb; struct wmi_probe_req_report_cmd *p; @@ -2781,11 +3054,11 @@ int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, bool enable) enable); p = (struct wmi_probe_req_report_cmd *) skb->data; p->enable = enable ? 1 : 0; - return ath6kl_wmi_cmd_send(wmi, skb, WMI_PROBE_REQ_REPORT_CMDID, + return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID, NO_SYNC_WMIFLAG); } -int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u32 info_req_flags) +int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags) { struct sk_buff *skb; struct wmi_get_p2p_info *p; @@ -2798,14 +3071,15 @@ int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u32 info_req_flags) info_req_flags); p = (struct wmi_get_p2p_info *) skb->data; p->info_req_flags = cpu_to_le32(info_req_flags); - return ath6kl_wmi_cmd_send(wmi, skb, WMI_GET_P2P_INFO_CMDID, + return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID, NO_SYNC_WMIFLAG); } -int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi) +int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx) { ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n"); - return ath6kl_wmi_simple_cmd(wmi, WMI_CANCEL_REMAIN_ON_CHNL_CMDID); + return ath6kl_wmi_simple_cmd(wmi, if_idx, + WMI_CANCEL_REMAIN_ON_CHNL_CMDID); } static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb) @@ -2818,7 +3092,6 @@ static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb) if (skb->len < sizeof(struct wmix_cmd_hdr)) { ath6kl_err("bad packet 1\n"); - wmi->stat.cmd_len_err++; return -EINVAL; } @@ -2840,7 +3113,6 @@ static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb) break; default: ath6kl_warn("unknown cmd id 0x%x\n", id); - wmi->stat.cmd_id_err++; ret = -EINVAL; break; } @@ -2848,12 +3120,19 @@ static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb) return ret; } +static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len) +{ + return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len); +} + /* Control Path */ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) { struct wmi_cmd_hdr *cmd; + struct ath6kl_vif *vif; u32 len; u16 id; + u8 if_idx; u8 *datap; int ret = 0; @@ -2863,12 +3142,12 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) if (skb->len < sizeof(struct wmi_cmd_hdr)) { ath6kl_err("bad packet 1\n"); dev_kfree_skb(skb); - wmi->stat.cmd_len_err++; return -EINVAL; } cmd = (struct wmi_cmd_hdr *) skb->data; id = le16_to_cpu(cmd->cmd_id); + if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK; skb_pull(skb, sizeof(struct wmi_cmd_hdr)); @@ -2879,6 +3158,15 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ", datap, len); + vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx); + if (!vif) { + ath6kl_dbg(ATH6KL_DBG_WMI, + "Wmi event for unavailable vif, vif_index:%d\n", + if_idx); + dev_kfree_skb(skb); + return -EINVAL; + } + switch (id) { case WMI_GET_BITRATE_CMDID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n"); @@ -2898,11 +3186,11 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_CONNECT_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n"); - ret = ath6kl_wmi_connect_event_rx(wmi, datap, len); + ret = ath6kl_wmi_connect_event_rx(wmi, datap, len, vif); break; case WMI_DISCONNECT_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n"); - ret = ath6kl_wmi_disconnect_event_rx(wmi, datap, len); + ret = ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif); break; case WMI_PEER_NODE_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n"); @@ -2910,11 +3198,11 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_TKIP_MICERR_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n"); - ret = ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len); + ret = ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif); break; case WMI_BSSINFO_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n"); - ret = ath6kl_wmi_bssinfo_event_rx(wmi, datap, len); + ret = ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif); break; case WMI_REGDOMAIN_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n"); @@ -2926,11 +3214,12 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_NEIGHBOR_REPORT_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n"); - ret = ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len); + ret = ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len, + vif); break; case WMI_SCAN_COMPLETE_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n"); - ret = ath6kl_wmi_scan_complete_rx(wmi, datap, len); + ret = ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif); break; case WMI_CMDERROR_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n"); @@ -2938,7 +3227,7 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_REPORT_STATISTICS_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n"); - ret = ath6kl_wmi_stats_event_rx(wmi, datap, len); + ret = ath6kl_wmi_stats_event_rx(wmi, datap, len, vif); break; case WMI_RSSI_THRESHOLD_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n"); @@ -2953,6 +3242,7 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_REPORT_ROAM_TBL_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n"); + ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len); break; case WMI_EXTENSION_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n"); @@ -2960,7 +3250,7 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_CAC_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n"); - ret = ath6kl_wmi_cac_event_rx(wmi, datap, len); + ret = ath6kl_wmi_cac_event_rx(wmi, datap, len, vif); break; case WMI_CHANNEL_CHANGE_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n"); @@ -2996,7 +3286,6 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_GET_WOW_LIST_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n"); - ret = ath6kl_wmi_get_wow_list_event_rx(wmi, datap, len); break; case WMI_GET_PMKID_LIST_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n"); @@ -3004,25 +3293,25 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_PSPOLL_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n"); - ret = ath6kl_wmi_pspoll_event_rx(wmi, datap, len); + ret = ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif); break; case WMI_DTIMEXPIRY_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n"); - ret = ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len); + ret = ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif); break; case WMI_SET_PARAMS_REPLY_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n"); break; case WMI_ADDBA_REQ_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n"); - ret = ath6kl_wmi_addba_req_event_rx(wmi, datap, len); + ret = ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif); break; case WMI_ADDBA_RESP_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n"); break; case WMI_DELBA_REQ_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n"); - ret = ath6kl_wmi_delba_req_event_rx(wmi, datap, len); + ret = ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif); break; case WMI_REPORT_BTCOEX_CONFIG_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, @@ -3038,21 +3327,21 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_REMAIN_ON_CHNL_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n"); - ret = ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len); + ret = ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif); break; case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n"); ret = ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap, - len); + len, vif); break; case WMI_TX_STATUS_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n"); - ret = ath6kl_wmi_tx_status_event_rx(wmi, datap, len); + ret = ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif); break; case WMI_RX_PROBE_REQ_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n"); - ret = ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len); + ret = ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif); break; case WMI_P2P_CAPABILITIES_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n"); @@ -3060,7 +3349,7 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; case WMI_RX_ACTION_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n"); - ret = ath6kl_wmi_rx_action_event_rx(wmi, datap, len); + ret = ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif); break; case WMI_P2P_INFO_EVENTID: ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n"); @@ -3068,7 +3357,6 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) break; default: ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", id); - wmi->stat.cmd_id_err++; ret = -EINVAL; break; } @@ -3078,11 +3366,8 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb) return ret; } -static void ath6kl_wmi_qos_state_init(struct wmi *wmi) +void ath6kl_wmi_reset(struct wmi *wmi) { - if (!wmi) - return; - spin_lock_bh(&wmi->lock); wmi->fat_pipe_exist = 0; @@ -3103,16 +3388,9 @@ void *ath6kl_wmi_init(struct ath6kl *dev) wmi->parent_dev = dev; - ath6kl_wmi_qos_state_init(wmi); - wmi->pwr_mode = REC_POWER; - wmi->phy_mode = WMI_11G_MODE; - - wmi->pair_crypto_type = NONE_CRYPT; - wmi->grp_crypto_type = NONE_CRYPT; - wmi->ht_allowed[A_BAND_24GHZ] = 1; - wmi->ht_allowed[A_BAND_5GHZ] = 1; + ath6kl_wmi_reset(wmi); return wmi; } diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h index f8e644d54aa7..76342d5a1906 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -93,11 +93,6 @@ struct sq_threshold_params { u8 last_rssi_poll_event; }; -struct wmi_stats { - u32 cmd_len_err; - u32 cmd_id_err; -}; - struct wmi_data_sync_bufs { u8 traffic_class; struct sk_buff *skb; @@ -111,32 +106,26 @@ struct wmi_data_sync_bufs { #define WMM_AC_VO 3 /* voice */ struct wmi { - bool ready; u16 stream_exist_for_ac[WMM_NUM_AC]; u8 fat_pipe_exist; struct ath6kl *parent_dev; - struct wmi_stats stat; u8 pwr_mode; - u8 phy_mode; - u8 keep_alive_intvl; spinlock_t lock; enum htc_endpoint_id ep_id; struct sq_threshold_params sq_threshld[SIGNAL_QUALITY_METRICS_NUM_MAX]; - enum crypto_type pair_crypto_type; - enum crypto_type grp_crypto_type; bool is_wmm_enabled; - u8 ht_allowed[A_NUM_BANDS]; u8 traffic_class; bool is_probe_ssid; u8 *last_mgmt_tx_frame; size_t last_mgmt_tx_frame_len; + u8 saved_pwr_mode; }; struct host_app_area { - u32 wmi_protocol_ver; -}; + __le32 wmi_protocol_ver; +} __packed; enum wmi_msg_type { DATA_MSGTYPE = 0x0, @@ -184,6 +173,8 @@ enum wmi_data_hdr_data_type { #define WMI_DATA_HDR_META_MASK 0x7 #define WMI_DATA_HDR_META_SHIFT 13 +#define WMI_DATA_HDR_IF_IDX_MASK 0xF + struct wmi_data_hdr { s8 rssi; @@ -208,6 +199,12 @@ struct wmi_data_hdr { * b15:b13 - META_DATA_VERSION 0 - 7 */ __le16 info2; + + /* + * usage of info3, 16-bit: + * b3:b0 - Interface index + * b15:b4 - Reserved + */ __le16 info3; } __packed; @@ -250,6 +247,11 @@ static inline u8 wmi_data_hdr_get_meta(struct wmi_data_hdr *dhdr) WMI_DATA_HDR_META_MASK; } +static inline u8 wmi_data_hdr_get_if_idx(struct wmi_data_hdr *dhdr) +{ + return le16_to_cpu(dhdr->info3) & WMI_DATA_HDR_IF_IDX_MASK; +} + /* Tx meta version definitions */ #define WMI_MAX_TX_META_SZ 12 #define WMI_META_VERSION_1 0x01 @@ -299,6 +301,8 @@ struct wmi_rx_meta_v2 { u8 csum_flags; } __packed; +#define WMI_CMD_HDR_IF_ID_MASK 0xF + /* Control Path */ struct wmi_cmd_hdr { __le16 cmd_id; @@ -312,6 +316,11 @@ struct wmi_cmd_hdr { __le16 reserved; } __packed; +static inline u8 wmi_cmd_hdr_get_if_idx(struct wmi_cmd_hdr *chdr) +{ + return le16_to_cpu(chdr->info1) & WMI_CMD_HDR_IF_ID_MASK; +} + /* List of WMI commands */ enum wmi_cmd_id { WMI_CONNECT_CMDID = 0x0001, @@ -576,9 +585,6 @@ enum auth_mode { WPA2_AUTH_CCKM = 0x40, }; -#define WMI_MIN_CRYPTO_TYPE NONE_CRYPT -#define WMI_MAX_CRYPTO_TYPE (AES_CRYPT + 1) - #define WMI_MIN_KEY_INDEX 0 #define WMI_MAX_KEY_INDEX 3 @@ -617,6 +623,7 @@ enum wmi_connect_ctrl_flags_bits { CONNECT_CSA_FOLLOW_BSS = 0x0020, CONNECT_DO_WPA_OFFLOAD = 0x0040, CONNECT_DO_NOT_DEAUTH = 0x0080, + CONNECT_WPS_FLAG = 0x0100, }; struct wmi_connect_cmd { @@ -1365,14 +1372,20 @@ enum wmi_roam_ctrl { WMI_SET_LRSSI_SCAN_PARAMS, }; +enum wmi_roam_mode { + WMI_DEFAULT_ROAM_MODE = 1, /* RSSI based roam */ + WMI_HOST_BIAS_ROAM_MODE = 2, /* Host bias based roam */ + WMI_LOCK_BSS_MODE = 3, /* Lock to the current BSS */ +}; + struct bss_bias { u8 bssid[ETH_ALEN]; - u8 bias; + s8 bias; } __packed; struct bss_bias_info { u8 num_bss; - struct bss_bias bss_bias[1]; + struct bss_bias bss_bias[0]; } __packed; struct low_rssi_scan_params { @@ -1385,10 +1398,11 @@ struct low_rssi_scan_params { struct roam_ctrl_cmd { union { - u8 bssid[ETH_ALEN]; - u8 roam_mode; - struct bss_bias_info bss; - struct low_rssi_scan_params params; + u8 bssid[ETH_ALEN]; /* WMI_FORCE_ROAM */ + u8 roam_mode; /* WMI_SET_ROAM_MODE */ + struct bss_bias_info bss; /* WMI_SET_HOST_BIAS */ + struct low_rssi_scan_params params; /* WMI_SET_LRSSI_SCAN_PARAMS + */ } __packed info; u8 roam_ctrl; } __packed; @@ -1455,6 +1469,10 @@ struct wmi_tkip_micerr_event { u8 is_mcast; } __packed; +enum wmi_scan_status { + WMI_SCAN_STATUS_SUCCESS = 0, +}; + /* WMI_SCAN_COMPLETE_EVENTID */ struct wmi_scan_complete_event { a_sle32 status; @@ -1635,6 +1653,12 @@ struct wmi_bss_roam_info { u8 reserved; } __packed; +struct wmi_target_roam_tbl { + __le16 roam_mode; + __le16 num_entries; + struct wmi_bss_roam_info info[]; +} __packed; + /* WMI_CAC_EVENTID */ enum cac_indication { CAC_INDICATION_ADMISSION = 0x00, @@ -1771,7 +1795,6 @@ struct wmi_set_appie_cmd { #define WSC_REG_ACTIVE 1 #define WSC_REG_INACTIVE 0 -#define WOW_MAX_FILTER_LISTS 1 #define WOW_MAX_FILTERS_PER_LIST 4 #define WOW_PATTERN_SIZE 64 #define WOW_MASK_SIZE 64 @@ -1794,17 +1817,52 @@ struct wmi_set_ip_cmd { __le32 ips[MAX_IP_ADDRS]; } __packed; -/* WMI_GET_WOW_LIST_CMD reply */ -struct wmi_get_wow_list_reply { - /* number of patterns in reply */ - u8 num_filters; +enum ath6kl_wow_filters { + WOW_FILTER_SSID = BIT(0), + WOW_FILTER_OPTION_MAGIC_PACKET = BIT(2), + WOW_FILTER_OPTION_EAP_REQ = BIT(3), + WOW_FILTER_OPTION_PATTERNS = BIT(4), + WOW_FILTER_OPTION_OFFLOAD_ARP = BIT(5), + WOW_FILTER_OPTION_OFFLOAD_NS = BIT(6), + WOW_FILTER_OPTION_OFFLOAD_GTK = BIT(7), + WOW_FILTER_OPTION_8021X_4WAYHS = BIT(8), + WOW_FILTER_OPTION_NLO_DISCVRY = BIT(9), + WOW_FILTER_OPTION_NWK_DISASSOC = BIT(10), + WOW_FILTER_OPTION_GTK_ERROR = BIT(11), + WOW_FILTER_OPTION_TEST_MODE = BIT(15), +}; - /* this is filter # x of total num_filters */ - u8 this_filter_num; +enum ath6kl_host_mode { + ATH6KL_HOST_MODE_AWAKE, + ATH6KL_HOST_MODE_ASLEEP, +}; + +struct wmi_set_host_sleep_mode_cmd { + __le32 awake; + __le32 asleep; +} __packed; + +enum ath6kl_wow_mode { + ATH6KL_WOW_MODE_DISABLE, + ATH6KL_WOW_MODE_ENABLE, +}; + +struct wmi_set_wow_mode_cmd { + __le32 enable_wow; + __le32 filter; + __le16 host_req_delay; +} __packed; + +struct wmi_add_wow_pattern_cmd { + u8 filter_list_id; + u8 filter_size; + u8 filter_offset; + u8 filter[0]; +} __packed; - u8 wow_mode; - u8 host_mode; - struct wow_filter wow_filters[1]; +struct wmi_del_wow_pattern_cmd { + __le16 filter_list_id; + __le16 filter_id; } __packed; /* WMI_SET_AKMP_PARAMS_CMD */ @@ -2163,20 +2221,21 @@ int ath6kl_wmi_dix_2_dot3(struct wmi *wmi, struct sk_buff *skb); int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb, u8 msg_type, bool more_data, enum wmi_data_hdr_data_type data_type, - u8 meta_ver, void *tx_meta_info); + u8 meta_ver, void *tx_meta_info, u8 if_idx); int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb); int ath6kl_wmi_dot3_2_dix(struct sk_buff *skb); -int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, struct sk_buff *skb, - u32 layer2_priority, bool wmm_enabled, - u8 *ac); +int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx, + struct sk_buff *skb, u32 layer2_priority, + bool wmm_enabled, u8 *ac); int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb); -int ath6kl_wmi_cmd_send(struct wmi *wmi, struct sk_buff *skb, +int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb, enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag); -int ath6kl_wmi_connect_cmd(struct wmi *wmi, enum network_type nw_type, +int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx, + enum network_type nw_type, enum dot11_auth_mode dot11_auth_mode, enum auth_mode auth_mode, enum crypto_type pairwise_crypto, @@ -2185,98 +2244,124 @@ int ath6kl_wmi_connect_cmd(struct wmi *wmi, enum network_type nw_type, u8 group_crypto_len, int ssid_len, u8 *ssid, u8 *bssid, u16 channel, u32 ctrl_flags); -int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 *bssid, u16 channel); -int ath6kl_wmi_disconnect_cmd(struct wmi *wmi); -int ath6kl_wmi_startscan_cmd(struct wmi *wmi, enum wmi_scan_type scan_type, +int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid, + u16 channel); +int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx); +int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx, + enum wmi_scan_type scan_type, u32 force_fgscan, u32 is_legacy, u32 home_dwell_time, u32 force_scan_interval, s8 num_chan, u16 *ch_list); -int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u16 fg_start_sec, +int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx, u16 fg_start_sec, u16 fg_end_sec, u16 bg_sec, u16 minact_chdw_msec, u16 maxact_chdw_msec, u16 pas_chdw_msec, u8 short_scan_ratio, u8 scan_ctrl_flag, u32 max_dfsch_act_time, u16 maxact_scan_per_ssid); -int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 filter, u32 ie_mask); -int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 index, u8 flag, +int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, + u32 ie_mask); +int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag, u8 ssid_len, u8 *ssid); -int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u16 listen_interval, +int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx, + u16 listen_interval, u16 listen_beacons); -int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 pwr_mode); -int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u16 idle_period, +int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode); +int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period, u16 ps_poll_num, u16 dtim_policy, u16 tx_wakup_policy, u16 num_tx_to_wakeup, u16 ps_fail_event_policy); -int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 timeout); -int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, +int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx, struct wmi_create_pstream_cmd *pstream); -int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 traffic_class, u8 tsid); +int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class, + u8 tsid); +int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout); int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold); -int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 status, +int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status, u8 preamble_policy); int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source); int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config); -int ath6kl_wmi_get_stats_cmd(struct wmi *wmi); -int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 key_index, +int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx); +int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index, enum crypto_type key_type, u8 key_usage, u8 key_len, - u8 *key_rsc, u8 *key_material, + u8 *key_rsc, unsigned int key_rsc_len, + u8 *key_material, u8 key_op_ctrl, u8 *mac_addr, enum wmi_sync_flag sync_flag); -int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 *krk); -int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 key_index); -int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, const u8 *bssid, +int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, u8 *krk); +int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index); +int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid, const u8 *pmkid, bool set); -int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 dbM); -int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi); +int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM); +int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx); +int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi); -int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, enum wmi_txop_cfg cfg); -int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 keep_alive_intvl); +int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg); +int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx, + u8 keep_alive_intvl); int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len); s32 ath6kl_wmi_get_rate(s8 rate_index); int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, struct wmi_set_ip_cmd *ip_cmd); +int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx, + enum ath6kl_host_mode host_mode); +int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx, + enum ath6kl_wow_mode wow_mode, + u32 filter, u16 host_req_delay); +int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx, + u8 list_id, u8 filter_size, + u8 filter_offset, u8 *filter, u8 *mask); +int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx, + u16 list_id, u16 filter_id); int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi); +int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid); +int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode); /* AP mode */ -int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, struct wmi_connect_cmd *p); +int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx, + struct wmi_connect_cmd *p); -int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 cmd, const u8 *mac, u16 reason); +int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, + const u8 *mac, u16 reason); -int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u16 aid, bool flag); +int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid, bool flag); -int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 rx_meta_version, +int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx, + u8 rx_meta_version, bool rx_dot11_hdr, bool defrag_on_host); -int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 mgmt_frm_type, const u8 *ie, - u8 ie_len); +int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type, + const u8 *ie, u8 ie_len); /* P2P */ int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable); -int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u32 freq, u32 dur); +int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, + u32 dur); -int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u32 id, u32 freq, u32 wait, - const u8 *data, u16 data_len); +int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq, + u32 wait, const u8 *data, u16 data_len); -int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u32 freq, - const u8 *dst, - const u8 *data, u16 data_len); +int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq, + const u8 *dst, const u8 *data, + u16 data_len); -int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, bool enable); +int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable); -int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u32 info_req_flags); +int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags); -int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi); +int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx); -int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 mgmt_frm_type, const u8 *ie, - u8 ie_len); +int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type, + const u8 *ie, u8 ie_len); +struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx); void *ath6kl_wmi_init(struct ath6kl *devt); void ath6kl_wmi_shutdown(struct wmi *wmi); +void ath6kl_wmi_reset(struct wmi *wmi); #endif /* WMI_H */ diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c index 012263968d64..9ac28d9de597 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.c +++ b/drivers/net/wireless/ath/ath9k/btcoex.c @@ -36,6 +36,20 @@ struct ath_btcoex_config { bool bt_hold_rx_clear; }; +static const u32 ar9003_wlan_weights[ATH_BTCOEX_STOMP_MAX] + [AR9300_NUM_WLAN_WEIGHTS] = { + { 0xfffffff0, 0xfffffff0, 0xfffffff0, 0xfffffff0 }, /* STOMP_ALL */ + { 0x88888880, 0x88888880, 0x88888880, 0x88888880 }, /* STOMP_LOW */ + { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* STOMP_NONE */ +}; + +static const u32 ar9462_wlan_weights[ATH_BTCOEX_STOMP_MAX] + [AR9300_NUM_WLAN_WEIGHTS] = { + { 0x01017d01, 0x41414101, 0x41414101, 0x41414141 }, /* STOMP_ALL */ + { 0x01017d01, 0x3b3b3b01, 0x3b3b3b01, 0x3b3b3b3b }, /* STOMP_LOW */ + { 0x01017d01, 0x01010101, 0x01010101, 0x01010101 }, /* STOMP_NONE */ + { 0x01017d01, 0x013b0101, 0x3b3b0101, 0x3b3b013b }, /* STOMP_LOW_FTP */ +}; void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum) { @@ -152,27 +166,26 @@ EXPORT_SYMBOL(ath9k_hw_btcoex_set_weight); static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah) { - struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; + struct ath_btcoex_hw *btcoex = &ah->btcoex_hw; u32 val; + int i; /* * Program coex mode and weight registers to * enable coex 3-wire */ - REG_WRITE(ah, AR_BT_COEX_MODE, btcoex_hw->bt_coex_mode); - REG_WRITE(ah, AR_BT_COEX_MODE2, btcoex_hw->bt_coex_mode2); + REG_WRITE(ah, AR_BT_COEX_MODE, btcoex->bt_coex_mode); + REG_WRITE(ah, AR_BT_COEX_MODE2, btcoex->bt_coex_mode2); if (AR_SREV_9300_20_OR_LATER(ah)) { - REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, ah->bt_coex_wlan_weight[0]); - REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, ah->bt_coex_wlan_weight[1]); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS0, ah->bt_coex_bt_weight[0]); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS1, ah->bt_coex_bt_weight[1]); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS2, ah->bt_coex_bt_weight[2]); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS3, ah->bt_coex_bt_weight[3]); - + REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, btcoex->wlan_weight[0]); + REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, btcoex->wlan_weight[1]); + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS(i), + btcoex->bt_weight[i]); } else - REG_WRITE(ah, AR_BT_COEX_WEIGHT, btcoex_hw->bt_coex_weights); + REG_WRITE(ah, AR_BT_COEX_WEIGHT, btcoex->bt_coex_weights); @@ -185,10 +198,23 @@ static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah) REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1); REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0); - ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio, + ath9k_hw_cfg_output(ah, btcoex->wlanactive_gpio, AR_GPIO_OUTPUT_MUX_AS_RX_CLEAR_EXTERNAL); } +static void ath9k_hw_btcoex_enable_mci(struct ath_hw *ah) +{ + struct ath_btcoex_hw *btcoex = &ah->btcoex_hw; + int i; + + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i), + btcoex->wlan_weight[i]); + + REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1); + btcoex->enabled = true; +} + void ath9k_hw_btcoex_enable(struct ath_hw *ah) { struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; @@ -202,6 +228,9 @@ void ath9k_hw_btcoex_enable(struct ath_hw *ah) case ATH_BTCOEX_CFG_3WIRE: ath9k_hw_btcoex_enable_3wire(ah); break; + case ATH_BTCOEX_CFG_MCI: + ath9k_hw_btcoex_enable_mci(ah); + return; } REG_RMW(ah, AR_GPIO_PDPU, @@ -215,7 +244,15 @@ EXPORT_SYMBOL(ath9k_hw_btcoex_enable); void ath9k_hw_btcoex_disable(struct ath_hw *ah) { struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; - + int i; + + btcoex_hw->enabled = false; + if (btcoex_hw->scheme == ATH_BTCOEX_CFG_MCI) { + ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i), + btcoex_hw->wlan_weight[i]); + } ath9k_hw_set_gpio(ah, btcoex_hw->wlanactive_gpio, 0); ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio, @@ -228,49 +265,27 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah) if (AR_SREV_9300_20_OR_LATER(ah)) { REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, 0); REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, 0); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS0, 0); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS1, 0); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS2, 0); - REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS3, 0); + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS(i), 0); } else REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0); } - - ah->btcoex_hw.enabled = false; } EXPORT_SYMBOL(ath9k_hw_btcoex_disable); static void ar9003_btcoex_bt_stomp(struct ath_hw *ah, enum ath_stomp_type stomp_type) { - ah->bt_coex_bt_weight[0] = AR9300_BT_WGHT; - ah->bt_coex_bt_weight[1] = AR9300_BT_WGHT; - ah->bt_coex_bt_weight[2] = AR9300_BT_WGHT; - ah->bt_coex_bt_weight[3] = AR9300_BT_WGHT; - - - switch (stomp_type) { - case ATH_BTCOEX_STOMP_ALL: - ah->bt_coex_wlan_weight[0] = AR9300_STOMP_ALL_WLAN_WGHT0; - ah->bt_coex_wlan_weight[1] = AR9300_STOMP_ALL_WLAN_WGHT1; - break; - case ATH_BTCOEX_STOMP_LOW: - ah->bt_coex_wlan_weight[0] = AR9300_STOMP_LOW_WLAN_WGHT0; - ah->bt_coex_wlan_weight[1] = AR9300_STOMP_LOW_WLAN_WGHT1; - break; - case ATH_BTCOEX_STOMP_NONE: - ah->bt_coex_wlan_weight[0] = AR9300_STOMP_NONE_WLAN_WGHT0; - ah->bt_coex_wlan_weight[1] = AR9300_STOMP_NONE_WLAN_WGHT1; - break; - - default: - ath_dbg(ath9k_hw_common(ah), ATH_DBG_BTCOEX, - "Invalid Stomptype\n"); - break; + struct ath_btcoex_hw *btcoex = &ah->btcoex_hw; + const u32 *weight = AR_SREV_9462(ah) ? ar9003_wlan_weights[stomp_type] : + ar9462_wlan_weights[stomp_type]; + int i; + + for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) { + btcoex->bt_weight[i] = AR9300_BT_WGHT; + btcoex->wlan_weight[i] = weight[i]; } - - ath9k_hw_btcoex_enable(ah); } /* @@ -302,7 +317,5 @@ void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah, "Invalid Stomptype\n"); break; } - - ath9k_hw_btcoex_enable(ah); } EXPORT_SYMBOL(ath9k_hw_btcoex_bt_stomp); diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h index 234f77689b14..d5e5db1faad9 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.h +++ b/drivers/net/wireless/ath/ath9k/btcoex.h @@ -36,18 +36,22 @@ #define ATH_BT_CNT_THRESHOLD 3 #define ATH_BT_CNT_SCAN_THRESHOLD 15 +#define AR9300_NUM_BT_WEIGHTS 4 +#define AR9300_NUM_WLAN_WEIGHTS 4 /* Defines the BT AR_BT_COEX_WGHT used */ enum ath_stomp_type { - ATH_BTCOEX_NO_STOMP, ATH_BTCOEX_STOMP_ALL, ATH_BTCOEX_STOMP_LOW, - ATH_BTCOEX_STOMP_NONE + ATH_BTCOEX_STOMP_NONE, + ATH_BTCOEX_STOMP_LOW_FTP, + ATH_BTCOEX_STOMP_MAX }; enum ath_btcoex_scheme { ATH_BTCOEX_CFG_NONE, ATH_BTCOEX_CFG_2WIRE, ATH_BTCOEX_CFG_3WIRE, + ATH_BTCOEX_CFG_MCI, }; struct ath_btcoex_hw { @@ -59,6 +63,8 @@ struct ath_btcoex_hw { u32 bt_coex_mode; /* Register setting for AR_BT_COEX_MODE */ u32 bt_coex_weights; /* Register setting for AR_BT_COEX_WEIGHT */ u32 bt_coex_mode2; /* Register setting for AR_BT_COEX_MODE2 */ + u32 bt_weight[AR9300_NUM_BT_WEIGHTS]; + u32 wlan_weight[AR9300_NUM_WLAN_WEIGHTS]; }; void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah); diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index 2c279dcaf4ba..e4ae08e07719 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -198,6 +198,7 @@ static void ath_btcoex_period_timer(unsigned long data) ath9k_hw_btcoex_bt_stomp(ah, is_btscan ? ATH_BTCOEX_STOMP_ALL : btcoex->bt_stomp_type); + ath9k_hw_btcoex_enable(ah); spin_unlock_bh(&btcoex->btcoex_lock); if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { @@ -240,6 +241,7 @@ static void ath_btcoex_no_stomp_timer(void *arg) else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); + ath9k_hw_btcoex_enable(ah); spin_unlock_bh(&btcoex->btcoex_lock); ath9k_ps_restore(sc); } diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c index e3a02eb8e0cc..ce606b618e0b 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c @@ -80,6 +80,7 @@ static void ath_btcoex_period_work(struct work_struct *work) ath9k_hw_btcoex_bt_stomp(priv->ah, is_btscan ? ATH_BTCOEX_STOMP_ALL : btcoex->bt_stomp_type); + ath9k_hw_btcoex_enable(priv->ah); timer_period = is_btscan ? btcoex->btscan_no_stomp : btcoex->btcoex_no_stomp; ieee80211_queue_delayed_work(priv->hw, &priv->duty_cycle_work, @@ -108,6 +109,7 @@ static void ath_btcoex_duty_cycle_work(struct work_struct *work) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); + ath9k_hw_btcoex_enable(priv->ah); } void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv) diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 33e8f2f9d425..3cb878c28ccf 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -59,9 +59,6 @@ #define AT9285_COEX3WIRE_SA_SUBSYSID 0x30aa #define AT9285_COEX3WIRE_DA_SUBSYSID 0x30ab -#define AR9300_NUM_BT_WEIGHTS 4 -#define AR9300_NUM_WLAN_WEIGHTS 4 - #define ATH_AMPDU_LIMIT_MAX (64 * 1024 - 1) #define ATH_DEFAULT_NOISE_FLOOR -95 @@ -802,8 +799,6 @@ struct ath_hw { /* Bluetooth coexistance */ struct ath_btcoex_hw btcoex_hw; - u32 bt_coex_bt_weight[AR9300_NUM_BT_WEIGHTS]; - u32 bt_coex_wlan_weight[AR9300_NUM_WLAN_WEIGHTS]; u32 intr_txqs; u8 txchainmask; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 67b862cdae6d..4c8e296f663b 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -1838,11 +1838,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) if (sc->sc_flags & SC_OP_RXFLUSH) goto requeue_drop_frag; - retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs, - rxs, &decrypt_error); - if (retval) - goto requeue_drop_frag; - rxs->mactime = (tsf & ~0xffffffffULL) | rs.rs_tstamp; if (rs.rs_tstamp > tsf_lower && unlikely(rs.rs_tstamp - tsf_lower > 0x10000000)) @@ -1852,6 +1847,11 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) unlikely(tsf_lower - rs.rs_tstamp > 0x10000000)) rxs->mactime += 0x100000000ULL; + retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs, + rxs, &decrypt_error); + if (retval) + goto requeue_drop_frag; + /* Ensure we always have an skb to requeue once we are done * processing the current buffer's skb */ requeue_skb = ath_rxbuf_alloc(common, common->rx_bufsize, GFP_ATOMIC); diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 8fcb7e9e8399..45910975d853 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -1752,19 +1752,10 @@ enum { #define AR_BT_COEX_WL_WEIGHTS0 0x8174 #define AR_BT_COEX_WL_WEIGHTS1 0x81c4 +#define AR_MCI_COEX_WL_WEIGHTS(_i) (0x18b0 + (_i << 2)) +#define AR_BT_COEX_BT_WEIGHTS(_i) (0x83ac + (_i << 2)) -#define AR_BT_COEX_BT_WEIGHTS0 0x83ac -#define AR_BT_COEX_BT_WEIGHTS1 0x83b0 -#define AR_BT_COEX_BT_WEIGHTS2 0x83b4 -#define AR_BT_COEX_BT_WEIGHTS3 0x83b8 - -#define AR9300_BT_WGHT 0xcccc4444 -#define AR9300_STOMP_ALL_WLAN_WGHT0 0xfffffff0 -#define AR9300_STOMP_ALL_WLAN_WGHT1 0xfffffff0 -#define AR9300_STOMP_LOW_WLAN_WGHT0 0x88888880 -#define AR9300_STOMP_LOW_WLAN_WGHT1 0x88888880 -#define AR9300_STOMP_NONE_WLAN_WGHT0 0x00000000 -#define AR9300_STOMP_NONE_WLAN_WGHT1 0x00000000 +#define AR9300_BT_WGHT 0xcccc4444 #define AR_BT_COEX_MODE2 0x817c #define AR_BT_BCN_MISS_THRESH 0x000000ff diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c index 59472e1605cd..d19a9ee9d057 100644 --- a/drivers/net/wireless/ath/carl9170/tx.c +++ b/drivers/net/wireless/ath/carl9170/tx.c @@ -314,7 +314,7 @@ static void carl9170_tx_release(struct kref *ref) * feedback either [CTL_REQ_TX_STATUS not set] */ - dev_kfree_skb_any(skb); + ieee80211_free_txskb(ar->hw, skb); return; } else { /* @@ -1432,7 +1432,7 @@ void carl9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) err_free: ar->tx_dropped++; - dev_kfree_skb_any(skb); + ieee80211_free_txskb(ar->hw, skb); } void carl9170_tx_scheduler(struct ar9170 *ar) diff --git a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c index 025fa0eb6f47..39e305443d7e 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c @@ -16,6 +16,8 @@ * File contents: support functions for PCI/PCIe */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/delay.h> #include <linux/pci.h> @@ -349,9 +351,9 @@ #define PCI_FORCEHT(si) (PCIE(si) && (si->pub.chip == BCM4716_CHIP_ID)) #ifdef BCMDBG -#define SI_MSG(args) printk args +#define SI_MSG(fmt, ...) pr_debug(fmt, ##__VA_ARGS__) #else -#define SI_MSG(args) +#define SI_MSG(fmt, ...) no_printk(fmt, ##__VA_ARGS__) #endif /* BCMDBG */ #define GOODCOREADDR(x, b) \ @@ -1073,7 +1075,7 @@ static struct si_info *ai_doattach(struct si_info *sii, /* scan for cores */ if (socitype == SOCI_AI) { - SI_MSG(("Found chip type AI (0x%08x)\n", w)); + SI_MSG("Found chip type AI (0x%08x)\n", w); /* pass chipc address instead of original core base */ ai_scan(&sii->pub, cc); } else { @@ -1129,7 +1131,7 @@ static struct si_info *ai_doattach(struct si_info *sii, * set chipControl register bit 15 */ if (sih->chiprev == 0) { - SI_MSG(("Applying 43224A0 WARs\n")); + SI_MSG("Applying 43224A0 WARs\n"); ai_corereg(sih, SI_CC_IDX, offsetof(struct chipcregs, chipcontrol), CCTRL43224_GPIO_TOGGLE, @@ -1138,7 +1140,7 @@ static struct si_info *ai_doattach(struct si_info *sii, CCTRL_43224A0_12MA_LED_DRIVE); } if (sih->chiprev >= 1) { - SI_MSG(("Applying 43224B0+ WARs\n")); + SI_MSG("Applying 43224B0+ WARs\n"); si_pmu_chipcontrol(sih, 0, CCTRL_43224B0_12MA_LED_DRIVE, CCTRL_43224B0_12MA_LED_DRIVE); } @@ -1149,7 +1151,7 @@ static struct si_info *ai_doattach(struct si_info *sii, * enable 12 mA drive strenth for 4313 and * set chipControl register bit 1 */ - SI_MSG(("Applying 4313 WARs\n")); + SI_MSG("Applying 4313 WARs\n"); si_pmu_chipcontrol(sih, 0, CCTRL_4313_12MA_LED_DRIVE, CCTRL_4313_12MA_LED_DRIVE); } diff --git a/drivers/net/wireless/brcm80211/brcmsmac/dma.c b/drivers/net/wireless/brcm80211/brcmsmac/dma.c index e286fb4d4813..0bb8c37e979e 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/dma.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/dma.c @@ -13,6 +13,9 @@ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/slab.h> #include <linux/delay.h> #include <linux/pci.h> @@ -168,26 +171,25 @@ /* debug/trace */ #ifdef BCMDBG -#define DMA_ERROR(args) \ - do { \ - if (!(*di->msg_level & 1)) \ - ; \ - else \ - printk args; \ - } while (0) -#define DMA_TRACE(args) \ - do { \ - if (!(*di->msg_level & 2)) \ - ; \ - else \ - printk args; \ - } while (0) +#define DMA_ERROR(fmt, ...) \ +do { \ + if (*di->msg_level & 1) \ + pr_debug("%s: " fmt, __func__, ##__VA_ARGS__); \ +} while (0) +#define DMA_TRACE(fmt, ...) \ +do { \ + if (*di->msg_level & 2) \ + pr_debug("%s: " fmt, __func__, ##__VA_ARGS__); \ +} while (0) #else -#define DMA_ERROR(args) -#define DMA_TRACE(args) +#define DMA_ERROR(fmt, ...) \ + no_printk(fmt, ##__VA_ARGS__) +#define DMA_TRACE(fmt, ...) \ + no_printk(fmt, ##__VA_ARGS__) #endif /* BCMDBG */ -#define DMA_NONE(args) +#define DMA_NONE(fmt, ...) \ + no_printk(fmt, ##__VA_ARGS__) #define MAXNAMEL 8 /* 8 char names */ @@ -361,7 +363,7 @@ static uint _dma_ctrlflags(struct dma_info *di, uint mask, uint flags) uint dmactrlflags; if (di == NULL) { - DMA_ERROR(("_dma_ctrlflags: NULL dma handle\n")); + DMA_ERROR("NULL dma handle\n"); return 0; } @@ -412,13 +414,13 @@ static bool _dma_isaddrext(struct dma_info *di) /* not all tx or rx channel are available */ if (di->d64txregs != NULL) { if (!_dma64_addrext(di->d64txregs)) - DMA_ERROR(("%s: _dma_isaddrext: DMA64 tx doesn't have " - "AE set\n", di->name)); + DMA_ERROR("%s: DMA64 tx doesn't have AE set\n", + di->name); return true; } else if (di->d64rxregs != NULL) { if (!_dma64_addrext(di->d64rxregs)) - DMA_ERROR(("%s: _dma_isaddrext: DMA64 rx doesn't have " - "AE set\n", di->name)); + DMA_ERROR("%s: DMA64 rx doesn't have AE set\n", + di->name); return true; } @@ -519,8 +521,8 @@ static bool dma64_alloc(struct dma_info *di, uint direction) va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits, &alloced, &di->txdpaorig); if (va == NULL) { - DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(ntxd)" - " failed\n", di->name)); + DMA_ERROR("%s: DMA_ALLOC_CONSISTENT(ntxd) failed\n", + di->name); return false; } align = (1 << align_bits); @@ -533,8 +535,8 @@ static bool dma64_alloc(struct dma_info *di, uint direction) va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits, &alloced, &di->rxdpaorig); if (va == NULL) { - DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(nrxd)" - " failed\n", di->name)); + DMA_ERROR("%s: DMA_ALLOC_CONSISTENT(nrxd) failed\n", + di->name); return false; } align = (1 << align_bits); @@ -583,11 +585,10 @@ struct dma_pub *dma_attach(char *name, struct si_pub *sih, */ _dma_ctrlflags(di, DMA_CTRL_ROC | DMA_CTRL_PEN, 0); - DMA_TRACE(("%s: dma_attach: %s flags 0x%x ntxd %d nrxd %d " - "rxbufsize %d rxextheadroom %d nrxpost %d rxoffset %d " - "dmaregstx %p dmaregsrx %p\n", name, "DMA64", - di->dma.dmactrlflags, ntxd, nrxd, rxbufsize, - rxextheadroom, nrxpost, rxoffset, dmaregstx, dmaregsrx)); + DMA_TRACE("%s: %s flags 0x%x ntxd %d nrxd %d rxbufsize %d rxextheadroom %d nrxpost %d rxoffset %d dmaregstx %p dmaregsrx %p\n", + name, "DMA64", + di->dma.dmactrlflags, ntxd, nrxd, rxbufsize, + rxextheadroom, nrxpost, rxoffset, dmaregstx, dmaregsrx); /* make a private copy of our callers name */ strncpy(di->name, name, MAXNAMEL); @@ -645,8 +646,8 @@ struct dma_pub *dma_attach(char *name, struct si_pub *sih, di->dmadesc_align = 4; /* 16 byte alignment */ } - DMA_NONE(("DMA descriptor align_needed %d, align %d\n", - di->aligndesc_4k, di->dmadesc_align)); + DMA_NONE("DMA descriptor align_needed %d, align %d\n", + di->aligndesc_4k, di->dmadesc_align); /* allocate tx packet pointer vector */ if (ntxd) { @@ -684,21 +685,21 @@ struct dma_pub *dma_attach(char *name, struct si_pub *sih, if ((di->ddoffsetlow != 0) && !di->addrext) { if (di->txdpa > SI_PCI_DMA_SZ) { - DMA_ERROR(("%s: dma_attach: txdpa 0x%x: addrext not " - "supported\n", di->name, (u32)di->txdpa)); + DMA_ERROR("%s: txdpa 0x%x: addrext not supported\n", + di->name, (u32)di->txdpa); goto fail; } if (di->rxdpa > SI_PCI_DMA_SZ) { - DMA_ERROR(("%s: dma_attach: rxdpa 0x%x: addrext not " - "supported\n", di->name, (u32)di->rxdpa)); + DMA_ERROR("%s: rxdpa 0x%x: addrext not supported\n", + di->name, (u32)di->rxdpa); goto fail; } } - DMA_TRACE(("ddoffsetlow 0x%x ddoffsethigh 0x%x dataoffsetlow 0x%x " - "dataoffsethigh " "0x%x addrext %d\n", di->ddoffsetlow, - di->ddoffsethigh, di->dataoffsetlow, di->dataoffsethigh, - di->addrext)); + DMA_TRACE("ddoffsetlow 0x%x ddoffsethigh 0x%x dataoffsetlow 0x%x dataoffsethigh 0x%x addrext %d\n", + di->ddoffsetlow, di->ddoffsethigh, + di->dataoffsetlow, di->dataoffsethigh, + di->addrext); return (struct dma_pub *) di; @@ -744,7 +745,7 @@ void dma_detach(struct dma_pub *pub) { struct dma_info *di = (struct dma_info *)pub; - DMA_TRACE(("%s: dma_detach\n", di->name)); + DMA_TRACE("%s:\n", di->name); /* free dma descriptor rings */ if (di->txd64) @@ -812,7 +813,7 @@ static void _dma_rxenable(struct dma_info *di) uint dmactrlflags = di->dma.dmactrlflags; u32 control; - DMA_TRACE(("%s: dma_rxenable\n", di->name)); + DMA_TRACE("%s:\n", di->name); control = (R_REG(&di->d64rxregs->control) & D64_RC_AE) | @@ -832,7 +833,7 @@ void dma_rxinit(struct dma_pub *pub) { struct dma_info *di = (struct dma_info *)pub; - DMA_TRACE(("%s: dma_rxinit\n", di->name)); + DMA_TRACE("%s:\n", di->name); if (di->nrxd == 0) return; @@ -926,7 +927,7 @@ int dma_rx(struct dma_pub *pub, struct sk_buff_head *skb_list) return 0; len = le16_to_cpu(*(__le16 *) (p->data)); - DMA_TRACE(("%s: dma_rx len %d\n", di->name, len)); + DMA_TRACE("%s: dma_rx len %d\n", di->name, len); dma_spin_for_len(len, p); /* set actual length */ @@ -953,14 +954,14 @@ int dma_rx(struct dma_pub *pub, struct sk_buff_head *skb_list) D64_RS0_CD_MASK) - di->rcvptrbase) & D64_RS0_CD_MASK, struct dma64desc); - DMA_ERROR(("dma_rx, rxin %d rxout %d, hw_curr %d\n", - di->rxin, di->rxout, cur)); + DMA_ERROR("rxin %d rxout %d, hw_curr %d\n", + di->rxin, di->rxout, cur); } #endif /* BCMDBG */ if ((di->dma.dmactrlflags & DMA_CTRL_RXMULTI) == 0) { - DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n", - di->name, len)); + DMA_ERROR("%s: bad frame length (%d)\n", + di->name, len); skb_queue_walk_safe(&dma_frames, p, next) { skb_unlink(p, &dma_frames); brcmu_pkt_buf_free_skb(p); @@ -977,7 +978,7 @@ int dma_rx(struct dma_pub *pub, struct sk_buff_head *skb_list) static bool dma64_rxidle(struct dma_info *di) { - DMA_TRACE(("%s: dma_rxidle\n", di->name)); + DMA_TRACE("%s:\n", di->name); if (di->nrxd == 0) return true; @@ -1017,7 +1018,7 @@ bool dma_rxfill(struct dma_pub *pub) n = di->nrxpost - nrxdactive(di, rxin, rxout); - DMA_TRACE(("%s: dma_rxfill: post %d\n", di->name, n)); + DMA_TRACE("%s: post %d\n", di->name, n); if (di->rxbufsize > BCMEXTRAHDROOM) extra_offset = di->rxextrahdrroom; @@ -1030,11 +1031,9 @@ bool dma_rxfill(struct dma_pub *pub) p = brcmu_pkt_buf_get_skb(di->rxbufsize + extra_offset); if (p == NULL) { - DMA_ERROR(("%s: dma_rxfill: out of rxbufs\n", - di->name)); + DMA_ERROR("%s: out of rxbufs\n", di->name); if (i == 0 && dma64_rxidle(di)) { - DMA_ERROR(("%s: rxfill64: ring is empty !\n", - di->name)); + DMA_ERROR("%s: ring is empty !\n", di->name); ring_empty = true; } di->dma.rxnobuf++; @@ -1079,7 +1078,7 @@ void dma_rxreclaim(struct dma_pub *pub) struct dma_info *di = (struct dma_info *)pub; struct sk_buff *p; - DMA_TRACE(("%s: dma_rxreclaim\n", di->name)); + DMA_TRACE("%s:\n", di->name); while ((p = _dma_getnextrxp(di, true))) brcmu_pkt_buf_free_skb(p); @@ -1110,7 +1109,7 @@ void dma_txinit(struct dma_pub *pub) struct dma_info *di = (struct dma_info *)pub; u32 control = D64_XC_XE; - DMA_TRACE(("%s: dma_txinit\n", di->name)); + DMA_TRACE("%s:\n", di->name); if (di->ntxd == 0) return; @@ -1142,7 +1141,7 @@ void dma_txsuspend(struct dma_pub *pub) { struct dma_info *di = (struct dma_info *)pub; - DMA_TRACE(("%s: dma_txsuspend\n", di->name)); + DMA_TRACE("%s:\n", di->name); if (di->ntxd == 0) return; @@ -1154,7 +1153,7 @@ void dma_txresume(struct dma_pub *pub) { struct dma_info *di = (struct dma_info *)pub; - DMA_TRACE(("%s: dma_txresume\n", di->name)); + DMA_TRACE("%s:\n", di->name); if (di->ntxd == 0) return; @@ -1176,11 +1175,11 @@ void dma_txreclaim(struct dma_pub *pub, enum txd_range range) struct dma_info *di = (struct dma_info *)pub; struct sk_buff *p; - DMA_TRACE(("%s: dma_txreclaim %s\n", di->name, - (range == DMA_RANGE_ALL) ? "all" : - ((range == - DMA_RANGE_TRANSMITTED) ? "transmitted" : - "transferred"))); + DMA_TRACE("%s: %s\n", + di->name, + range == DMA_RANGE_ALL ? "all" : + range == DMA_RANGE_TRANSMITTED ? "transmitted" : + "transferred"); if (di->txin == di->txout) return; @@ -1250,7 +1249,7 @@ int dma_txfast(struct dma_pub *pub, struct sk_buff *p0, bool commit) u32 flags = 0; dma_addr_t pa; - DMA_TRACE(("%s: dma_txfast\n", di->name)); + DMA_TRACE("%s:\n", di->name); txout = di->txout; @@ -1314,7 +1313,7 @@ int dma_txfast(struct dma_pub *pub, struct sk_buff *p0, bool commit) return 0; outoftxd: - DMA_ERROR(("%s: dma_txfast: out of txds !!!\n", di->name)); + DMA_ERROR("%s: out of txds !!!\n", di->name); brcmu_pkt_buf_free_skb(p0); di->dma.txavail = 0; di->dma.txnobuf++; @@ -1338,11 +1337,11 @@ struct sk_buff *dma_getnexttxp(struct dma_pub *pub, enum txd_range range) u16 active_desc; struct sk_buff *txp; - DMA_TRACE(("%s: dma_getnexttxp %s\n", di->name, - (range == DMA_RANGE_ALL) ? "all" : - ((range == - DMA_RANGE_TRANSMITTED) ? "transmitted" : - "transferred"))); + DMA_TRACE("%s: %s\n", + di->name, + range == DMA_RANGE_ALL ? "all" : + range == DMA_RANGE_TRANSMITTED ? "transmitted" : + "transferred"); if (di->ntxd == 0) return NULL; @@ -1402,8 +1401,8 @@ struct sk_buff *dma_getnexttxp(struct dma_pub *pub, enum txd_range range) return txp; bogus: - DMA_NONE(("dma_getnexttxp: bogus curr: start %d end %d txout %d " - "force %d\n", start, end, di->txout, forceall)); + DMA_NONE("bogus curr: start %d end %d txout %d\n", + start, end, di->txout); return NULL; } diff --git a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c index 8457e969eb4f..ba3e4b5cba71 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c @@ -1550,11 +1550,10 @@ int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx) if (le32_to_cpu(hdr->idx) == idx) { pdata = wl->fw.fw_bin[i]->data + le32_to_cpu(hdr->offset); - *pbuf = kmalloc(len, GFP_ATOMIC); + *pbuf = kmemdup(pdata, len, GFP_ATOMIC); if (*pbuf == NULL) goto fail; - memcpy(*pbuf, pdata, len); return 0; } } diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c index 045a93645a3d..18054d9c6688 100644 --- a/drivers/net/wireless/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/hostap/hostap_ioctl.c @@ -3872,8 +3872,8 @@ static void prism2_get_drvinfo(struct net_device *dev, iface = netdev_priv(dev); local = iface->local; - strncpy(info->driver, "hostap", sizeof(info->driver) - 1); - snprintf(info->fw_version, sizeof(info->fw_version) - 1, + strlcpy(info->driver, "hostap", sizeof(info->driver)); + snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d", (local->sta_fw_ver >> 16) & 0xff, (local->sta_fw_ver >> 8) & 0xff, local->sta_fw_ver & 0xff); diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c index 127e9c63beaf..a0e5c21d3657 100644 --- a/drivers/net/wireless/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/ipw2x00/ipw2100.c @@ -5981,8 +5981,8 @@ static void ipw_ethtool_get_drvinfo(struct net_device *dev, struct ipw2100_priv *priv = libipw_priv(dev); char fw_ver[64], ucode_ver[64]; - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); + strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); + strlcpy(info->version, DRV_VERSION, sizeof(info->version)); ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver)); ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver)); @@ -5990,7 +5990,8 @@ static void ipw_ethtool_get_drvinfo(struct net_device *dev, snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s", fw_ver, priv->eeprom_version, ucode_ver); - strcpy(info->bus_info, pci_name(priv->pci_dev)); + strlcpy(info->bus_info, pci_name(priv->pci_dev), + sizeof(info->bus_info)); } static u32 ipw2100_ethtool_get_link(struct net_device *dev) diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 99575884ff52..018a8deb88a8 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -10548,8 +10548,8 @@ static void ipw_ethtool_get_drvinfo(struct net_device *dev, char date[32]; u32 len; - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); + strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); + strlcpy(info->version, DRV_VERSION, sizeof(info->version)); len = sizeof(vers); ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len); @@ -10558,7 +10558,8 @@ static void ipw_ethtool_get_drvinfo(struct net_device *dev, snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)", vers, date); - strcpy(info->bus_info, pci_name(p->pci_dev)); + strlcpy(info->bus_info, pci_name(p->pci_dev), + sizeof(info->bus_info)); info->eedump_len = IPW_EEPROM_IMAGE_SIZE; } diff --git a/drivers/net/wireless/iwlegacy/3945-debug.c b/drivers/net/wireless/iwlegacy/3945-debug.c new file mode 100644 index 000000000000..5e1a19fd354d --- /dev/null +++ b/drivers/net/wireless/iwlegacy/3945-debug.c @@ -0,0 +1,505 @@ +/****************************************************************************** + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + *****************************************************************************/ + +#include "common.h" +#include "3945.h" + +static int +il3945_stats_flag(struct il_priv *il, char *buf, int bufsz) +{ + int p = 0; + + p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", + le32_to_cpu(il->_3945.stats.flag)); + if (le32_to_cpu(il->_3945.stats.flag) & UCODE_STATS_CLEAR_MSK) + p += scnprintf(buf + p, bufsz - p, + "\tStatistics have been cleared\n"); + p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n", + (le32_to_cpu(il->_3945.stats.flag) & + UCODE_STATS_FREQUENCY_MSK) ? "2.4 GHz" : "5.2 GHz"); + p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n", + (le32_to_cpu(il->_3945.stats.flag) & + UCODE_STATS_NARROW_BAND_MSK) ? "enabled" : "disabled"); + return p; +} + +ssize_t +il3945_ucode_rx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + int pos = 0; + char *buf; + int bufsz = + sizeof(struct iwl39_stats_rx_phy) * 40 + + sizeof(struct iwl39_stats_rx_non_phy) * 40 + 400; + ssize_t ret; + struct iwl39_stats_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm; + struct iwl39_stats_rx_phy *cck, *accum_cck, *delta_cck, *max_cck; + struct iwl39_stats_rx_non_phy *general, *accum_general; + struct iwl39_stats_rx_non_phy *delta_general, *max_general; + + if (!il_is_alive(il)) + return -EAGAIN; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + /* + * The statistic information display here is based on + * the last stats notification from uCode + * might not reflect the current uCode activity + */ + ofdm = &il->_3945.stats.rx.ofdm; + cck = &il->_3945.stats.rx.cck; + general = &il->_3945.stats.rx.general; + accum_ofdm = &il->_3945.accum_stats.rx.ofdm; + accum_cck = &il->_3945.accum_stats.rx.cck; + accum_general = &il->_3945.accum_stats.rx.general; + delta_ofdm = &il->_3945.delta_stats.rx.ofdm; + delta_cck = &il->_3945.delta_stats.rx.cck; + delta_general = &il->_3945.delta_stats.rx.general; + max_ofdm = &il->_3945.max_delta.rx.ofdm; + max_cck = &il->_3945.max_delta.rx.cck; + max_general = &il->_3945.max_delta.rx.general; + + pos += il3945_stats_flag(il, buf, bufsz); + pos += + scnprintf(buf + pos, bufsz - pos, + "%-32s current" + "acumulative delta max\n", + "Statistics_Rx - OFDM:"); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "ina_cnt:", + le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt, + delta_ofdm->ina_cnt, max_ofdm->ina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "fina_cnt:", + le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt, + delta_ofdm->fina_cnt, max_ofdm->fina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "plcp_err:", + le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err, + delta_ofdm->plcp_err, max_ofdm->plcp_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "crc32_err:", + le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err, + delta_ofdm->crc32_err, max_ofdm->crc32_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "overrun_err:", + le32_to_cpu(ofdm->overrun_err), accum_ofdm->overrun_err, + delta_ofdm->overrun_err, max_ofdm->overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "early_overrun_err:", + le32_to_cpu(ofdm->early_overrun_err), + accum_ofdm->early_overrun_err, + delta_ofdm->early_overrun_err, + max_ofdm->early_overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "crc32_good:", + le32_to_cpu(ofdm->crc32_good), accum_ofdm->crc32_good, + delta_ofdm->crc32_good, max_ofdm->crc32_good); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "false_alarm_cnt:", + le32_to_cpu(ofdm->false_alarm_cnt), + accum_ofdm->false_alarm_cnt, delta_ofdm->false_alarm_cnt, + max_ofdm->false_alarm_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "fina_sync_err_cnt:", + le32_to_cpu(ofdm->fina_sync_err_cnt), + accum_ofdm->fina_sync_err_cnt, + delta_ofdm->fina_sync_err_cnt, + max_ofdm->fina_sync_err_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "sfd_timeout:", + le32_to_cpu(ofdm->sfd_timeout), accum_ofdm->sfd_timeout, + delta_ofdm->sfd_timeout, max_ofdm->sfd_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "fina_timeout:", + le32_to_cpu(ofdm->fina_timeout), accum_ofdm->fina_timeout, + delta_ofdm->fina_timeout, max_ofdm->fina_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "unresponded_rts:", + le32_to_cpu(ofdm->unresponded_rts), + accum_ofdm->unresponded_rts, delta_ofdm->unresponded_rts, + max_ofdm->unresponded_rts); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", + "rxe_frame_lmt_ovrun:", + le32_to_cpu(ofdm->rxe_frame_limit_overrun), + accum_ofdm->rxe_frame_limit_overrun, + delta_ofdm->rxe_frame_limit_overrun, + max_ofdm->rxe_frame_limit_overrun); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "sent_ack_cnt:", + le32_to_cpu(ofdm->sent_ack_cnt), accum_ofdm->sent_ack_cnt, + delta_ofdm->sent_ack_cnt, max_ofdm->sent_ack_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "sent_cts_cnt:", + le32_to_cpu(ofdm->sent_cts_cnt), accum_ofdm->sent_cts_cnt, + delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt); + + pos += + scnprintf(buf + pos, bufsz - pos, + "%-32s current" + "acumulative delta max\n", + "Statistics_Rx - CCK:"); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "ina_cnt:", + le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt, + delta_cck->ina_cnt, max_cck->ina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "fina_cnt:", + le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt, + delta_cck->fina_cnt, max_cck->fina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "plcp_err:", + le32_to_cpu(cck->plcp_err), accum_cck->plcp_err, + delta_cck->plcp_err, max_cck->plcp_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "crc32_err:", + le32_to_cpu(cck->crc32_err), accum_cck->crc32_err, + delta_cck->crc32_err, max_cck->crc32_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "overrun_err:", + le32_to_cpu(cck->overrun_err), accum_cck->overrun_err, + delta_cck->overrun_err, max_cck->overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "early_overrun_err:", + le32_to_cpu(cck->early_overrun_err), + accum_cck->early_overrun_err, + delta_cck->early_overrun_err, max_cck->early_overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "crc32_good:", + le32_to_cpu(cck->crc32_good), accum_cck->crc32_good, + delta_cck->crc32_good, max_cck->crc32_good); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "false_alarm_cnt:", + le32_to_cpu(cck->false_alarm_cnt), + accum_cck->false_alarm_cnt, delta_cck->false_alarm_cnt, + max_cck->false_alarm_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "fina_sync_err_cnt:", + le32_to_cpu(cck->fina_sync_err_cnt), + accum_cck->fina_sync_err_cnt, + delta_cck->fina_sync_err_cnt, max_cck->fina_sync_err_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "sfd_timeout:", + le32_to_cpu(cck->sfd_timeout), accum_cck->sfd_timeout, + delta_cck->sfd_timeout, max_cck->sfd_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "fina_timeout:", + le32_to_cpu(cck->fina_timeout), accum_cck->fina_timeout, + delta_cck->fina_timeout, max_cck->fina_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "unresponded_rts:", + le32_to_cpu(cck->unresponded_rts), + accum_cck->unresponded_rts, delta_cck->unresponded_rts, + max_cck->unresponded_rts); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", + "rxe_frame_lmt_ovrun:", + le32_to_cpu(cck->rxe_frame_limit_overrun), + accum_cck->rxe_frame_limit_overrun, + delta_cck->rxe_frame_limit_overrun, + max_cck->rxe_frame_limit_overrun); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "sent_ack_cnt:", + le32_to_cpu(cck->sent_ack_cnt), accum_cck->sent_ack_cnt, + delta_cck->sent_ack_cnt, max_cck->sent_ack_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "sent_cts_cnt:", + le32_to_cpu(cck->sent_cts_cnt), accum_cck->sent_cts_cnt, + delta_cck->sent_cts_cnt, max_cck->sent_cts_cnt); + + pos += + scnprintf(buf + pos, bufsz - pos, + "%-32s current" + "acumulative delta max\n", + "Statistics_Rx - GENERAL:"); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "bogus_cts:", + le32_to_cpu(general->bogus_cts), accum_general->bogus_cts, + delta_general->bogus_cts, max_general->bogus_cts); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "bogus_ack:", + le32_to_cpu(general->bogus_ack), accum_general->bogus_ack, + delta_general->bogus_ack, max_general->bogus_ack); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "non_bssid_frames:", + le32_to_cpu(general->non_bssid_frames), + accum_general->non_bssid_frames, + delta_general->non_bssid_frames, + max_general->non_bssid_frames); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "filtered_frames:", + le32_to_cpu(general->filtered_frames), + accum_general->filtered_frames, + delta_general->filtered_frames, + max_general->filtered_frames); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", + "non_channel_beacons:", + le32_to_cpu(general->non_channel_beacons), + accum_general->non_channel_beacons, + delta_general->non_channel_beacons, + max_general->non_channel_beacons); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +ssize_t +il3945_ucode_tx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + int pos = 0; + char *buf; + int bufsz = (sizeof(struct iwl39_stats_tx) * 48) + 250; + ssize_t ret; + struct iwl39_stats_tx *tx, *accum_tx, *delta_tx, *max_tx; + + if (!il_is_alive(il)) + return -EAGAIN; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + /* + * The statistic information display here is based on + * the last stats notification from uCode + * might not reflect the current uCode activity + */ + tx = &il->_3945.stats.tx; + accum_tx = &il->_3945.accum_stats.tx; + delta_tx = &il->_3945.delta_stats.tx; + max_tx = &il->_3945.max_delta.tx; + pos += il3945_stats_flag(il, buf, bufsz); + pos += + scnprintf(buf + pos, bufsz - pos, + "%-32s current" + "acumulative delta max\n", + "Statistics_Tx:"); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "preamble:", + le32_to_cpu(tx->preamble_cnt), accum_tx->preamble_cnt, + delta_tx->preamble_cnt, max_tx->preamble_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "rx_detected_cnt:", + le32_to_cpu(tx->rx_detected_cnt), + accum_tx->rx_detected_cnt, delta_tx->rx_detected_cnt, + max_tx->rx_detected_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "bt_prio_defer_cnt:", + le32_to_cpu(tx->bt_prio_defer_cnt), + accum_tx->bt_prio_defer_cnt, delta_tx->bt_prio_defer_cnt, + max_tx->bt_prio_defer_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "bt_prio_kill_cnt:", + le32_to_cpu(tx->bt_prio_kill_cnt), + accum_tx->bt_prio_kill_cnt, delta_tx->bt_prio_kill_cnt, + max_tx->bt_prio_kill_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "few_bytes_cnt:", + le32_to_cpu(tx->few_bytes_cnt), accum_tx->few_bytes_cnt, + delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "cts_timeout:", + le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout, + delta_tx->cts_timeout, max_tx->cts_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "ack_timeout:", + le32_to_cpu(tx->ack_timeout), accum_tx->ack_timeout, + delta_tx->ack_timeout, max_tx->ack_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "expected_ack_cnt:", + le32_to_cpu(tx->expected_ack_cnt), + accum_tx->expected_ack_cnt, delta_tx->expected_ack_cnt, + max_tx->expected_ack_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "actual_ack_cnt:", + le32_to_cpu(tx->actual_ack_cnt), accum_tx->actual_ack_cnt, + delta_tx->actual_ack_cnt, max_tx->actual_ack_cnt); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +ssize_t +il3945_ucode_general_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + int pos = 0; + char *buf; + int bufsz = sizeof(struct iwl39_stats_general) * 10 + 300; + ssize_t ret; + struct iwl39_stats_general *general, *accum_general; + struct iwl39_stats_general *delta_general, *max_general; + struct stats_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg; + struct iwl39_stats_div *div, *accum_div, *delta_div, *max_div; + + if (!il_is_alive(il)) + return -EAGAIN; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + /* + * The statistic information display here is based on + * the last stats notification from uCode + * might not reflect the current uCode activity + */ + general = &il->_3945.stats.general; + dbg = &il->_3945.stats.general.dbg; + div = &il->_3945.stats.general.div; + accum_general = &il->_3945.accum_stats.general; + delta_general = &il->_3945.delta_stats.general; + max_general = &il->_3945.max_delta.general; + accum_dbg = &il->_3945.accum_stats.general.dbg; + delta_dbg = &il->_3945.delta_stats.general.dbg; + max_dbg = &il->_3945.max_delta.general.dbg; + accum_div = &il->_3945.accum_stats.general.div; + delta_div = &il->_3945.delta_stats.general.div; + max_div = &il->_3945.max_delta.general.div; + pos += il3945_stats_flag(il, buf, bufsz); + pos += + scnprintf(buf + pos, bufsz - pos, + "%-32s current" + "acumulative delta max\n", + "Statistics_General:"); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "burst_check:", + le32_to_cpu(dbg->burst_check), accum_dbg->burst_check, + delta_dbg->burst_check, max_dbg->burst_check); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "burst_count:", + le32_to_cpu(dbg->burst_count), accum_dbg->burst_count, + delta_dbg->burst_count, max_dbg->burst_count); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "sleep_time:", + le32_to_cpu(general->sleep_time), + accum_general->sleep_time, delta_general->sleep_time, + max_general->sleep_time); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "slots_out:", + le32_to_cpu(general->slots_out), accum_general->slots_out, + delta_general->slots_out, max_general->slots_out); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "slots_idle:", + le32_to_cpu(general->slots_idle), + accum_general->slots_idle, delta_general->slots_idle, + max_general->slots_idle); + pos += + scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n", + le32_to_cpu(general->ttl_timestamp)); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "tx_on_a:", + le32_to_cpu(div->tx_on_a), accum_div->tx_on_a, + delta_div->tx_on_a, max_div->tx_on_a); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "tx_on_b:", + le32_to_cpu(div->tx_on_b), accum_div->tx_on_b, + delta_div->tx_on_b, max_div->tx_on_b); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "exec_time:", + le32_to_cpu(div->exec_time), accum_div->exec_time, + delta_div->exec_time, max_div->exec_time); + pos += + scnprintf(buf + pos, bufsz - pos, + " %-30s %10u %10u %10u %10u\n", "probe_time:", + le32_to_cpu(div->probe_time), accum_div->probe_time, + delta_div->probe_time, max_div->probe_time); + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c new file mode 100644 index 000000000000..daef6b58f6cc --- /dev/null +++ b/drivers/net/wireless/iwlegacy/3945-mac.c @@ -0,0 +1,3977 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * Portions of this file are derived from the ipw3945 project, as well + * as portions of the ieee80211 subsystem header files. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci-aspm.h> +#include <linux/slab.h> +#include <linux/dma-mapping.h> +#include <linux/delay.h> +#include <linux/sched.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/firmware.h> +#include <linux/etherdevice.h> +#include <linux/if_arp.h> + +#include <net/ieee80211_radiotap.h> +#include <net/mac80211.h> + +#include <asm/div64.h> + +#define DRV_NAME "iwl3945" + +#include "commands.h" +#include "common.h" +#include "3945.h" +#include "iwl-spectrum.h" + +/* + * module name, copyright, version, etc. + */ + +#define DRV_DESCRIPTION \ +"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" + +#ifdef CONFIG_IWLEGACY_DEBUG +#define VD "d" +#else +#define VD +#endif + +/* + * add "s" to indicate spectrum measurement included. + * we add it here to be consistent with previous releases in which + * this was configurable. + */ +#define DRV_VERSION IWLWIFI_VERSION VD "s" +#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation" +#define DRV_AUTHOR "<ilw@linux.intel.com>" + +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_VERSION(DRV_VERSION); +MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); +MODULE_LICENSE("GPL"); + + /* module parameters */ +struct il_mod_params il3945_mod_params = { + .sw_crypto = 1, + .restart_fw = 1, + .disable_hw_scan = 1, + /* the rest are 0 by default */ +}; + +/** + * il3945_get_antenna_flags - Get antenna flags for RXON command + * @il: eeprom and antenna fields are used to determine antenna flags + * + * il->eeprom39 is used to determine if antenna AUX/MAIN are reversed + * il3945_mod_params.antenna specifies the antenna diversity mode: + * + * IL_ANTENNA_DIVERSITY - NIC selects best antenna by itself + * IL_ANTENNA_MAIN - Force MAIN antenna + * IL_ANTENNA_AUX - Force AUX antenna + */ +__le32 +il3945_get_antenna_flags(const struct il_priv *il) +{ + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + + switch (il3945_mod_params.antenna) { + case IL_ANTENNA_DIVERSITY: + return 0; + + case IL_ANTENNA_MAIN: + if (eeprom->antenna_switch_type) + return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; + return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; + + case IL_ANTENNA_AUX: + if (eeprom->antenna_switch_type) + return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; + return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; + } + + /* bad antenna selector value */ + IL_ERR("Bad antenna selector value (0x%x)\n", + il3945_mod_params.antenna); + + return 0; /* "diversity" is default if error */ +} + +static int +il3945_set_ccmp_dynamic_key_info(struct il_priv *il, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + unsigned long flags; + __le16 key_flags = 0; + int ret; + + key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); + key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); + + if (sta_id == il->ctx.bcast_sta_id) + key_flags |= STA_KEY_MULTICAST_MSK; + + keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + keyconf->hw_key_idx = keyconf->keyidx; + key_flags &= ~STA_KEY_FLG_INVALID; + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].keyinfo.cipher = keyconf->cipher; + il->stations[sta_id].keyinfo.keylen = keyconf->keylen; + memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen); + + memcpy(il->stations[sta_id].sta.key.key, keyconf->key, keyconf->keylen); + + if ((il->stations[sta_id].sta.key. + key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC) + il->stations[sta_id].sta.key.key_offset = + il_get_free_ucode_key_idx(il); + /* else, we are overriding an existing key => no need to allocated room + * in uCode. */ + + WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, + "no space for a new key"); + + il->stations[sta_id].sta.key.key_flags = key_flags; + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + + D_INFO("hwcrypto: modify ucode station key info\n"); + + ret = il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC); + + spin_unlock_irqrestore(&il->sta_lock, flags); + + return ret; +} + +static int +il3945_set_tkip_dynamic_key_info(struct il_priv *il, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + return -EOPNOTSUPP; +} + +static int +il3945_set_wep_dynamic_key_info(struct il_priv *il, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + return -EOPNOTSUPP; +} + +static int +il3945_clear_sta_key_info(struct il_priv *il, u8 sta_id) +{ + unsigned long flags; + struct il_addsta_cmd sta_cmd; + + spin_lock_irqsave(&il->sta_lock, flags); + memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key)); + memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo)); + il->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags); + + D_INFO("hwcrypto: clear ucode station key info\n"); + return il_send_add_sta(il, &sta_cmd, CMD_SYNC); +} + +static int +il3945_set_dynamic_key(struct il_priv *il, struct ieee80211_key_conf *keyconf, + u8 sta_id) +{ + int ret = 0; + + keyconf->hw_key_idx = HW_KEY_DYNAMIC; + + switch (keyconf->cipher) { + case WLAN_CIPHER_SUITE_CCMP: + ret = il3945_set_ccmp_dynamic_key_info(il, keyconf, sta_id); + break; + case WLAN_CIPHER_SUITE_TKIP: + ret = il3945_set_tkip_dynamic_key_info(il, keyconf, sta_id); + break; + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + ret = il3945_set_wep_dynamic_key_info(il, keyconf, sta_id); + break; + default: + IL_ERR("Unknown alg: %s alg=%x\n", __func__, keyconf->cipher); + ret = -EINVAL; + } + + D_WEP("Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n", + keyconf->cipher, keyconf->keylen, keyconf->keyidx, sta_id, ret); + + return ret; +} + +static int +il3945_remove_static_key(struct il_priv *il) +{ + int ret = -EOPNOTSUPP; + + return ret; +} + +static int +il3945_set_static_key(struct il_priv *il, struct ieee80211_key_conf *key) +{ + if (key->cipher == WLAN_CIPHER_SUITE_WEP40 || + key->cipher == WLAN_CIPHER_SUITE_WEP104) + return -EOPNOTSUPP; + + IL_ERR("Static key invalid: cipher %x\n", key->cipher); + return -EINVAL; +} + +static void +il3945_clear_free_frames(struct il_priv *il) +{ + struct list_head *element; + + D_INFO("%d frames on pre-allocated heap on clear.\n", il->frames_count); + + while (!list_empty(&il->free_frames)) { + element = il->free_frames.next; + list_del(element); + kfree(list_entry(element, struct il3945_frame, list)); + il->frames_count--; + } + + if (il->frames_count) { + IL_WARN("%d frames still in use. Did we lose one?\n", + il->frames_count); + il->frames_count = 0; + } +} + +static struct il3945_frame * +il3945_get_free_frame(struct il_priv *il) +{ + struct il3945_frame *frame; + struct list_head *element; + if (list_empty(&il->free_frames)) { + frame = kzalloc(sizeof(*frame), GFP_KERNEL); + if (!frame) { + IL_ERR("Could not allocate frame!\n"); + return NULL; + } + + il->frames_count++; + return frame; + } + + element = il->free_frames.next; + list_del(element); + return list_entry(element, struct il3945_frame, list); +} + +static void +il3945_free_frame(struct il_priv *il, struct il3945_frame *frame) +{ + memset(frame, 0, sizeof(*frame)); + list_add(&frame->list, &il->free_frames); +} + +unsigned int +il3945_fill_beacon_frame(struct il_priv *il, struct ieee80211_hdr *hdr, + int left) +{ + + if (!il_is_associated(il) || !il->beacon_skb) + return 0; + + if (il->beacon_skb->len > left) + return 0; + + memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len); + + return il->beacon_skb->len; +} + +static int +il3945_send_beacon_cmd(struct il_priv *il) +{ + struct il3945_frame *frame; + unsigned int frame_size; + int rc; + u8 rate; + + frame = il3945_get_free_frame(il); + + if (!frame) { + IL_ERR("Could not obtain free frame buffer for beacon " + "command.\n"); + return -ENOMEM; + } + + rate = il_get_lowest_plcp(il, &il->ctx); + + frame_size = il3945_hw_get_beacon_cmd(il, frame, rate); + + rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, &frame->u.cmd[0]); + + il3945_free_frame(il, frame); + + return rc; +} + +static void +il3945_unset_hw_params(struct il_priv *il) +{ + if (il->_3945.shared_virt) + dma_free_coherent(&il->pci_dev->dev, + sizeof(struct il3945_shared), + il->_3945.shared_virt, il->_3945.shared_phys); +} + +static void +il3945_build_tx_cmd_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info, + struct il_device_cmd *cmd, + struct sk_buff *skb_frag, int sta_id) +{ + struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; + struct il_hw_key *keyinfo = &il->stations[sta_id].keyinfo; + + tx_cmd->sec_ctl = 0; + + switch (keyinfo->cipher) { + case WLAN_CIPHER_SUITE_CCMP: + tx_cmd->sec_ctl = TX_CMD_SEC_CCM; + memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen); + D_TX("tx_cmd with AES hwcrypto\n"); + break; + + case WLAN_CIPHER_SUITE_TKIP: + break; + + case WLAN_CIPHER_SUITE_WEP104: + tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; + /* fall through */ + case WLAN_CIPHER_SUITE_WEP40: + tx_cmd->sec_ctl |= + TX_CMD_SEC_WEP | (info->control.hw_key-> + hw_key_idx & TX_CMD_SEC_MSK) << + TX_CMD_SEC_SHIFT; + + memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen); + + D_TX("Configuring packet for WEP encryption " "with key %d\n", + info->control.hw_key->hw_key_idx); + break; + + default: + IL_ERR("Unknown encode cipher %x\n", keyinfo->cipher); + break; + } +} + +/* + * handle build C_TX command notification. + */ +static void +il3945_build_tx_cmd_basic(struct il_priv *il, struct il_device_cmd *cmd, + struct ieee80211_tx_info *info, + struct ieee80211_hdr *hdr, u8 std_id) +{ + struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; + __le32 tx_flags = tx_cmd->tx_flags; + __le16 fc = hdr->frame_control; + + tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { + tx_flags |= TX_CMD_FLG_ACK_MSK; + if (ieee80211_is_mgmt(fc)) + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + if (ieee80211_is_probe_resp(fc) && + !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) + tx_flags |= TX_CMD_FLG_TSF_MSK; + } else { + tx_flags &= (~TX_CMD_FLG_ACK_MSK); + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + } + + tx_cmd->sta_id = std_id; + if (ieee80211_has_morefrags(fc)) + tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; + + if (ieee80211_is_data_qos(fc)) { + u8 *qc = ieee80211_get_qos_ctl(hdr); + tx_cmd->tid_tspec = qc[0] & 0xf; + tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; + } else { + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + } + + il_tx_cmd_protection(il, info, fc, &tx_flags); + + tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); + if (ieee80211_is_mgmt(fc)) { + if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) + tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); + else + tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); + } else { + tx_cmd->timeout.pm_frame_timeout = 0; + } + + tx_cmd->driver_txop = 0; + tx_cmd->tx_flags = tx_flags; + tx_cmd->next_frame_len = 0; +} + +/* + * start C_TX command process + */ +static int +il3945_tx_skb(struct il_priv *il, struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct il3945_tx_cmd *tx_cmd; + struct il_tx_queue *txq = NULL; + struct il_queue *q = NULL; + struct il_device_cmd *out_cmd; + struct il_cmd_meta *out_meta; + dma_addr_t phys_addr; + dma_addr_t txcmd_phys; + int txq_id = skb_get_queue_mapping(skb); + u16 len, idx, hdr_len; + u8 id; + u8 unicast; + u8 sta_id; + u8 tid = 0; + __le16 fc; + u8 wait_write_ptr = 0; + unsigned long flags; + + spin_lock_irqsave(&il->lock, flags); + if (il_is_rfkill(il)) { + D_DROP("Dropping - RF KILL\n"); + goto drop_unlock; + } + + if ((ieee80211_get_tx_rate(il->hw, info)->hw_value & 0xFF) == + IL_INVALID_RATE) { + IL_ERR("ERROR: No TX rate available.\n"); + goto drop_unlock; + } + + unicast = !is_multicast_ether_addr(hdr->addr1); + id = 0; + + fc = hdr->frame_control; + +#ifdef CONFIG_IWLEGACY_DEBUG + if (ieee80211_is_auth(fc)) + D_TX("Sending AUTH frame\n"); + else if (ieee80211_is_assoc_req(fc)) + D_TX("Sending ASSOC frame\n"); + else if (ieee80211_is_reassoc_req(fc)) + D_TX("Sending REASSOC frame\n"); +#endif + + spin_unlock_irqrestore(&il->lock, flags); + + hdr_len = ieee80211_hdrlen(fc); + + /* Find idx into station table for destination station */ + sta_id = il_sta_id_or_broadcast(il, &il->ctx, info->control.sta); + if (sta_id == IL_INVALID_STATION) { + D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1); + goto drop; + } + + D_RATE("station Id %d\n", sta_id); + + if (ieee80211_is_data_qos(fc)) { + u8 *qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; + if (unlikely(tid >= MAX_TID_COUNT)) + goto drop; + } + + /* Descriptor for chosen Tx queue */ + txq = &il->txq[txq_id]; + q = &txq->q; + + if ((il_queue_space(q) < q->high_mark)) + goto drop; + + spin_lock_irqsave(&il->lock, flags); + + idx = il_get_cmd_idx(q, q->write_ptr, 0); + + /* Set up driver data for this TFD */ + memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct il_tx_info)); + txq->txb[q->write_ptr].skb = skb; + txq->txb[q->write_ptr].ctx = &il->ctx; + + /* Init first empty entry in queue's array of Tx/cmd buffers */ + out_cmd = txq->cmd[idx]; + out_meta = &txq->meta[idx]; + tx_cmd = (struct il3945_tx_cmd *)out_cmd->cmd.payload; + memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); + memset(tx_cmd, 0, sizeof(*tx_cmd)); + + /* + * Set up the Tx-command (not MAC!) header. + * Store the chosen Tx queue and TFD idx within the sequence field; + * after Tx, uCode's Tx response will return this value so driver can + * locate the frame within the tx queue and do post-tx processing. + */ + out_cmd->hdr.cmd = C_TX; + out_cmd->hdr.sequence = + cpu_to_le16((u16) + (QUEUE_TO_SEQ(txq_id) | IDX_TO_SEQ(q->write_ptr))); + + /* Copy MAC header from skb into command buffer */ + memcpy(tx_cmd->hdr, hdr, hdr_len); + + if (info->control.hw_key) + il3945_build_tx_cmd_hwcrypto(il, info, out_cmd, skb, sta_id); + + /* TODO need this for burst mode later on */ + il3945_build_tx_cmd_basic(il, out_cmd, info, hdr, sta_id); + + /* set is_hcca to 0; it probably will never be implemented */ + il3945_hw_build_tx_cmd_rate(il, out_cmd, info, hdr, sta_id, 0); + + /* Total # bytes to be transmitted */ + len = (u16) skb->len; + tx_cmd->len = cpu_to_le16(len); + + il_dbg_log_tx_data_frame(il, len, hdr); + il_update_stats(il, true, fc, len); + tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; + tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; + + if (!ieee80211_has_morefrags(hdr->frame_control)) { + txq->need_update = 1; + } else { + wait_write_ptr = 1; + txq->need_update = 0; + } + + D_TX("sequence nr = 0X%x\n", le16_to_cpu(out_cmd->hdr.sequence)); + D_TX("tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); + il_print_hex_dump(il, IL_DL_TX, tx_cmd, sizeof(*tx_cmd)); + il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd->hdr, + ieee80211_hdrlen(fc)); + + /* + * Use the first empty entry in this queue's command buffer array + * to contain the Tx command and MAC header concatenated together + * (payload data will be in another buffer). + * Size of this varies, due to varying MAC header length. + * If end is not dword aligned, we'll have 2 extra bytes at the end + * of the MAC header (device reads on dword boundaries). + * We'll tell device about this padding later. + */ + len = + sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) + + hdr_len; + len = (len + 3) & ~3; + + /* Physical address of this Tx command's header (not MAC header!), + * within command buffer array. */ + txcmd_phys = + pci_map_single(il->pci_dev, &out_cmd->hdr, len, PCI_DMA_TODEVICE); + /* we do not map meta data ... so we can safely access address to + * provide to unmap command*/ + dma_unmap_addr_set(out_meta, mapping, txcmd_phys); + dma_unmap_len_set(out_meta, len, len); + + /* Add buffer containing Tx command and MAC(!) header to TFD's + * first entry */ + il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, txcmd_phys, len, 1, + 0); + + /* Set up TFD's 2nd entry to point directly to remainder of skb, + * if any (802.11 null frames have no payload). */ + len = skb->len - hdr_len; + if (len) { + phys_addr = + pci_map_single(il->pci_dev, skb->data + hdr_len, len, + PCI_DMA_TODEVICE); + il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr, + len, 0, U32_PAD(len)); + } + + /* Tell device the write idx *just past* this latest filled TFD */ + q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd); + il_txq_update_write_ptr(il, txq); + spin_unlock_irqrestore(&il->lock, flags); + + if (il_queue_space(q) < q->high_mark && il->mac80211_registered) { + if (wait_write_ptr) { + spin_lock_irqsave(&il->lock, flags); + txq->need_update = 1; + il_txq_update_write_ptr(il, txq); + spin_unlock_irqrestore(&il->lock, flags); + } + + il_stop_queue(il, txq); + } + + return 0; + +drop_unlock: + spin_unlock_irqrestore(&il->lock, flags); +drop: + return -1; +} + +static int +il3945_get_measurement(struct il_priv *il, + struct ieee80211_measurement_params *params, u8 type) +{ + struct il_spectrum_cmd spectrum; + struct il_rx_pkt *pkt; + struct il_host_cmd cmd = { + .id = C_SPECTRUM_MEASUREMENT, + .data = (void *)&spectrum, + .flags = CMD_WANT_SKB, + }; + u32 add_time = le64_to_cpu(params->start_time); + int rc; + int spectrum_resp_status; + int duration = le16_to_cpu(params->duration); + struct il_rxon_context *ctx = &il->ctx; + + if (il_is_associated(il)) + add_time = + il_usecs_to_beacons(il, + le64_to_cpu(params->start_time) - + il->_3945.last_tsf, + le16_to_cpu(ctx->timing. + beacon_interval)); + + memset(&spectrum, 0, sizeof(spectrum)); + + spectrum.channel_count = cpu_to_le16(1); + spectrum.flags = + RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; + spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; + cmd.len = sizeof(spectrum); + spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); + + if (il_is_associated(il)) + spectrum.start_time = + il_add_beacon_time(il, il->_3945.last_beacon_time, add_time, + le16_to_cpu(ctx->timing. + beacon_interval)); + else + spectrum.start_time = 0; + + spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); + spectrum.channels[0].channel = params->channel; + spectrum.channels[0].type = type; + if (ctx->active.flags & RXON_FLG_BAND_24G_MSK) + spectrum.flags |= + RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | + RXON_FLG_TGG_PROTECT_MSK; + + rc = il_send_cmd_sync(il, &cmd); + if (rc) + return rc; + + pkt = (struct il_rx_pkt *)cmd.reply_page; + if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { + IL_ERR("Bad return from N_RX_ON_ASSOC command\n"); + rc = -EIO; + } + + spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status); + switch (spectrum_resp_status) { + case 0: /* Command will be handled */ + if (pkt->u.spectrum.id != 0xff) { + D_INFO("Replaced existing measurement: %d\n", + pkt->u.spectrum.id); + il->measurement_status &= ~MEASUREMENT_READY; + } + il->measurement_status |= MEASUREMENT_ACTIVE; + rc = 0; + break; + + case 1: /* Command will not be handled */ + rc = -EAGAIN; + break; + } + + il_free_pages(il, cmd.reply_page); + + return rc; +} + +static void +il3945_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_alive_resp *palive; + struct delayed_work *pwork; + + palive = &pkt->u.alive_frame; + + D_INFO("Alive ucode status 0x%08X revision " "0x%01X 0x%01X\n", + palive->is_valid, palive->ver_type, palive->ver_subtype); + + if (palive->ver_subtype == INITIALIZE_SUBTYPE) { + D_INFO("Initialization Alive received.\n"); + memcpy(&il->card_alive_init, &pkt->u.alive_frame, + sizeof(struct il_alive_resp)); + pwork = &il->init_alive_start; + } else { + D_INFO("Runtime Alive received.\n"); + memcpy(&il->card_alive, &pkt->u.alive_frame, + sizeof(struct il_alive_resp)); + pwork = &il->alive_start; + il3945_disable_events(il); + } + + /* We delay the ALIVE response by 5ms to + * give the HW RF Kill time to activate... */ + if (palive->is_valid == UCODE_VALID_OK) + queue_delayed_work(il->workqueue, pwork, msecs_to_jiffies(5)); + else + IL_WARN("uCode did not respond OK.\n"); +} + +static void +il3945_hdl_add_sta(struct il_priv *il, struct il_rx_buf *rxb) +{ +#ifdef CONFIG_IWLEGACY_DEBUG + struct il_rx_pkt *pkt = rxb_addr(rxb); +#endif + + D_RX("Received C_ADD_STA: 0x%02X\n", pkt->u.status); +} + +static void +il3945_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il3945_beacon_notif *beacon = &(pkt->u.beacon_status); +#ifdef CONFIG_IWLEGACY_DEBUG + u8 rate = beacon->beacon_notify_hdr.rate; + + D_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n", + le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, + beacon->beacon_notify_hdr.failure_frame, + le32_to_cpu(beacon->ibss_mgr_status), + le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate); +#endif + + il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); + +} + +/* Handle notification from uCode that card's power state is changing + * due to software, hardware, or critical temperature RFKILL */ +static void +il3945_hdl_card_state(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); + unsigned long status = il->status; + + IL_WARN("Card state received: HW:%s SW:%s\n", + (flags & HW_CARD_DISABLED) ? "Kill" : "On", + (flags & SW_CARD_DISABLED) ? "Kill" : "On"); + + _il_wr(il, CSR_UCODE_DRV_GP1_SET, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); + + if (flags & HW_CARD_DISABLED) + set_bit(S_RF_KILL_HW, &il->status); + else + clear_bit(S_RF_KILL_HW, &il->status); + + il_scan_cancel(il); + + if ((test_bit(S_RF_KILL_HW, &status) != + test_bit(S_RF_KILL_HW, &il->status))) + wiphy_rfkill_set_hw_state(il->hw->wiphy, + test_bit(S_RF_KILL_HW, &il->status)); + else + wake_up(&il->wait_command_queue); +} + +/** + * il3945_setup_handlers - Initialize Rx handler callbacks + * + * Setup the RX handlers for each of the reply types sent from the uCode + * to the host. + * + * This function chains into the hardware specific files for them to setup + * any hardware specific handlers as well. + */ +static void +il3945_setup_handlers(struct il_priv *il) +{ + il->handlers[N_ALIVE] = il3945_hdl_alive; + il->handlers[C_ADD_STA] = il3945_hdl_add_sta; + il->handlers[N_ERROR] = il_hdl_error; + il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa; + il->handlers[N_SPECTRUM_MEASUREMENT] = il_hdl_spectrum_measurement; + il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep; + il->handlers[N_PM_DEBUG_STATS] = il_hdl_pm_debug_stats; + il->handlers[N_BEACON] = il3945_hdl_beacon; + + /* + * The same handler is used for both the REPLY to a discrete + * stats request from the host as well as for the periodic + * stats notifications (after received beacons) from the uCode. + */ + il->handlers[C_STATS] = il3945_hdl_c_stats; + il->handlers[N_STATS] = il3945_hdl_stats; + + il_setup_rx_scan_handlers(il); + il->handlers[N_CARD_STATE] = il3945_hdl_card_state; + + /* Set up hardware specific Rx handlers */ + il3945_hw_handler_setup(il); +} + +/************************** RX-FUNCTIONS ****************************/ +/* + * Rx theory of operation + * + * The host allocates 32 DMA target addresses and passes the host address + * to the firmware at register IL_RFDS_TBL_LOWER + N * RFD_SIZE where N is + * 0 to 31 + * + * Rx Queue Indexes + * The host/firmware share two idx registers for managing the Rx buffers. + * + * The READ idx maps to the first position that the firmware may be writing + * to -- the driver can read up to (but not including) this position and get + * good data. + * The READ idx is managed by the firmware once the card is enabled. + * + * The WRITE idx maps to the last position the driver has read from -- the + * position preceding WRITE is the last slot the firmware can place a packet. + * + * The queue is empty (no good data) if WRITE = READ - 1, and is full if + * WRITE = READ. + * + * During initialization, the host sets up the READ queue position to the first + * IDX position, and WRITE to the last (READ - 1 wrapped) + * + * When the firmware places a packet in a buffer, it will advance the READ idx + * and fire the RX interrupt. The driver can then query the READ idx and + * process as many packets as possible, moving the WRITE idx forward as it + * resets the Rx queue buffers with new memory. + * + * The management in the driver is as follows: + * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When + * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled + * to replenish the iwl->rxq->rx_free. + * + In il3945_rx_replenish (scheduled) if 'processed' != 'read' then the + * iwl->rxq is replenished and the READ IDX is updated (updating the + * 'processed' and 'read' driver idxes as well) + * + A received packet is processed and handed to the kernel network stack, + * detached from the iwl->rxq. The driver 'processed' idx is updated. + * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free + * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ + * IDX is not incremented and iwl->status(RX_STALLED) is set. If there + * were enough free buffers and RX_STALLED is set it is cleared. + * + * + * Driver sequence: + * + * il3945_rx_replenish() Replenishes rx_free list from rx_used, and calls + * il3945_rx_queue_restock + * il3945_rx_queue_restock() Moves available buffers from rx_free into Rx + * queue, updates firmware pointers, and updates + * the WRITE idx. If insufficient rx_free buffers + * are available, schedules il3945_rx_replenish + * + * -- enable interrupts -- + * ISR - il3945_rx() Detach il_rx_bufs from pool up to the + * READ IDX, detaching the SKB from the pool. + * Moves the packet buffer from queue to rx_used. + * Calls il3945_rx_queue_restock to refill any empty + * slots. + * ... + * + */ + +/** + * il3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr + */ +static inline __le32 +il3945_dma_addr2rbd_ptr(struct il_priv *il, dma_addr_t dma_addr) +{ + return cpu_to_le32((u32) dma_addr); +} + +/** + * il3945_rx_queue_restock - refill RX queue from pre-allocated pool + * + * If there are slots in the RX queue that need to be restocked, + * and we have free pre-allocated buffers, fill the ranks as much + * as we can, pulling from rx_free. + * + * This moves the 'write' idx forward to catch up with 'processed', and + * also updates the memory address in the firmware to reference the new + * target buffer. + */ +static void +il3945_rx_queue_restock(struct il_priv *il) +{ + struct il_rx_queue *rxq = &il->rxq; + struct list_head *element; + struct il_rx_buf *rxb; + unsigned long flags; + int write; + + spin_lock_irqsave(&rxq->lock, flags); + write = rxq->write & ~0x7; + while (il_rx_queue_space(rxq) > 0 && rxq->free_count) { + /* Get next free Rx buffer, remove from free list */ + element = rxq->rx_free.next; + rxb = list_entry(element, struct il_rx_buf, list); + list_del(element); + + /* Point to Rx buffer via next RBD in circular buffer */ + rxq->bd[rxq->write] = + il3945_dma_addr2rbd_ptr(il, rxb->page_dma); + rxq->queue[rxq->write] = rxb; + rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; + rxq->free_count--; + } + spin_unlock_irqrestore(&rxq->lock, flags); + /* If the pre-allocated buffer pool is dropping low, schedule to + * refill it */ + if (rxq->free_count <= RX_LOW_WATERMARK) + queue_work(il->workqueue, &il->rx_replenish); + + /* If we've added more space for the firmware to place data, tell it. + * Increment device's write pointer in multiples of 8. */ + if (rxq->write_actual != (rxq->write & ~0x7) || + abs(rxq->write - rxq->read) > 7) { + spin_lock_irqsave(&rxq->lock, flags); + rxq->need_update = 1; + spin_unlock_irqrestore(&rxq->lock, flags); + il_rx_queue_update_write_ptr(il, rxq); + } +} + +/** + * il3945_rx_replenish - Move all used packet from rx_used to rx_free + * + * When moving to rx_free an SKB is allocated for the slot. + * + * Also restock the Rx queue via il3945_rx_queue_restock. + * This is called as a scheduled work item (except for during initialization) + */ +static void +il3945_rx_allocate(struct il_priv *il, gfp_t priority) +{ + struct il_rx_queue *rxq = &il->rxq; + struct list_head *element; + struct il_rx_buf *rxb; + struct page *page; + unsigned long flags; + gfp_t gfp_mask = priority; + + while (1) { + spin_lock_irqsave(&rxq->lock, flags); + + if (list_empty(&rxq->rx_used)) { + spin_unlock_irqrestore(&rxq->lock, flags); + return; + } + spin_unlock_irqrestore(&rxq->lock, flags); + + if (rxq->free_count > RX_LOW_WATERMARK) + gfp_mask |= __GFP_NOWARN; + + if (il->hw_params.rx_page_order > 0) + gfp_mask |= __GFP_COMP; + + /* Alloc a new receive buffer */ + page = alloc_pages(gfp_mask, il->hw_params.rx_page_order); + if (!page) { + if (net_ratelimit()) + D_INFO("Failed to allocate SKB buffer.\n"); + if (rxq->free_count <= RX_LOW_WATERMARK && + net_ratelimit()) + IL_ERR("Failed to allocate SKB buffer with %0x." + "Only %u free buffers remaining.\n", + priority, rxq->free_count); + /* We don't reschedule replenish work here -- we will + * call the restock method and if it still needs + * more buffers it will schedule replenish */ + break; + } + + spin_lock_irqsave(&rxq->lock, flags); + if (list_empty(&rxq->rx_used)) { + spin_unlock_irqrestore(&rxq->lock, flags); + __free_pages(page, il->hw_params.rx_page_order); + return; + } + element = rxq->rx_used.next; + rxb = list_entry(element, struct il_rx_buf, list); + list_del(element); + spin_unlock_irqrestore(&rxq->lock, flags); + + rxb->page = page; + /* Get physical address of RB/SKB */ + rxb->page_dma = + pci_map_page(il->pci_dev, page, 0, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + + spin_lock_irqsave(&rxq->lock, flags); + + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + il->alloc_rxb_page++; + + spin_unlock_irqrestore(&rxq->lock, flags); + } +} + +void +il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq) +{ + unsigned long flags; + int i; + spin_lock_irqsave(&rxq->lock, flags); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { + /* In the reset function, these buffers may have been allocated + * to an SKB, so we need to unmap and free potential storage */ + if (rxq->pool[i].page != NULL) { + pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + __il_free_pages(il, rxq->pool[i].page); + rxq->pool[i].page = NULL; + } + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + } + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->write_actual = 0; + rxq->free_count = 0; + spin_unlock_irqrestore(&rxq->lock, flags); +} + +void +il3945_rx_replenish(void *data) +{ + struct il_priv *il = data; + unsigned long flags; + + il3945_rx_allocate(il, GFP_KERNEL); + + spin_lock_irqsave(&il->lock, flags); + il3945_rx_queue_restock(il); + spin_unlock_irqrestore(&il->lock, flags); +} + +static void +il3945_rx_replenish_now(struct il_priv *il) +{ + il3945_rx_allocate(il, GFP_ATOMIC); + + il3945_rx_queue_restock(il); +} + +/* Assumes that the skb field of the buffers in 'pool' is kept accurate. + * If an SKB has been detached, the POOL needs to have its SKB set to NULL + * This free routine walks the list of POOL entries and if SKB is set to + * non NULL it is unmapped and freed + */ +static void +il3945_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq) +{ + int i; + for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { + if (rxq->pool[i].page != NULL) { + pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + __il_free_pages(il, rxq->pool[i].page); + rxq->pool[i].page = NULL; + } + } + + dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, + rxq->bd_dma); + dma_free_coherent(&il->pci_dev->dev, sizeof(struct il_rb_status), + rxq->rb_stts, rxq->rb_stts_dma); + rxq->bd = NULL; + rxq->rb_stts = NULL; +} + +/* Convert linear signal-to-noise ratio into dB */ +static u8 ratio2dB[100] = { +/* 0 1 2 3 4 5 6 7 8 9 */ + 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ + 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ + 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ + 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ + 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ + 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ + 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ + 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ + 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ + 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ +}; + +/* Calculates a relative dB value from a ratio of linear + * (i.e. not dB) signal levels. + * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ +int +il3945_calc_db_from_ratio(int sig_ratio) +{ + /* 1000:1 or higher just report as 60 dB */ + if (sig_ratio >= 1000) + return 60; + + /* 100:1 or higher, divide by 10 and use table, + * add 20 dB to make up for divide by 10 */ + if (sig_ratio >= 100) + return 20 + (int)ratio2dB[sig_ratio / 10]; + + /* We shouldn't see this */ + if (sig_ratio < 1) + return 0; + + /* Use table for ratios 1:1 - 99:1 */ + return (int)ratio2dB[sig_ratio]; +} + +/** + * il3945_rx_handle - Main entry function for receiving responses from uCode + * + * Uses the il->handlers callback function array to invoke + * the appropriate handlers, including command responses, + * frame-received notifications, and other notifications. + */ +static void +il3945_rx_handle(struct il_priv *il) +{ + struct il_rx_buf *rxb; + struct il_rx_pkt *pkt; + struct il_rx_queue *rxq = &il->rxq; + u32 r, i; + int reclaim; + unsigned long flags; + u8 fill_rx = 0; + u32 count = 8; + int total_empty = 0; + + /* uCode's read idx (stored in shared DRAM) indicates the last Rx + * buffer that the driver may process (last buffer filled by ucode). */ + r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; + i = rxq->read; + + /* calculate total frames need to be restock after handling RX */ + total_empty = r - rxq->write_actual; + if (total_empty < 0) + total_empty += RX_QUEUE_SIZE; + + if (total_empty > (RX_QUEUE_SIZE / 2)) + fill_rx = 1; + /* Rx interrupt, but nothing sent from uCode */ + if (i == r) + D_RX("r = %d, i = %d\n", r, i); + + while (i != r) { + int len; + + rxb = rxq->queue[i]; + + /* If an RXB doesn't have a Rx queue slot associated with it, + * then a bug has been introduced in the queue refilling + * routines -- catch it here */ + BUG_ON(rxb == NULL); + + rxq->queue[i] = NULL; + + pci_unmap_page(il->pci_dev, rxb->page_dma, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + pkt = rxb_addr(rxb); + + len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK; + len += sizeof(u32); /* account for status word */ + + /* Reclaim a command buffer only if this packet is a response + * to a (driver-originated) command. + * If the packet (e.g. Rx frame) originated from uCode, + * there is no command buffer to reclaim. + * Ucode should set SEQ_RX_FRAME bit if ucode-originated, + * but apparently a few don't get set; catch them here. */ + reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && + pkt->hdr.cmd != N_STATS && pkt->hdr.cmd != C_TX; + + /* Based on type of command response or notification, + * handle those that need handling via function in + * handlers table. See il3945_setup_handlers() */ + if (il->handlers[pkt->hdr.cmd]) { + D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i, + il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); + il->isr_stats.handlers[pkt->hdr.cmd]++; + il->handlers[pkt->hdr.cmd] (il, rxb); + } else { + /* No handling needed */ + D_RX("r %d i %d No handler needed for %s, 0x%02x\n", r, + i, il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); + } + + /* + * XXX: After here, we should always check rxb->page + * against NULL before touching it or its virtual + * memory (pkt). Because some handler might have + * already taken or freed the pages. + */ + + if (reclaim) { + /* Invoke any callbacks, transfer the buffer to caller, + * and fire off the (possibly) blocking il_send_cmd() + * as we reclaim the driver command queue */ + if (rxb->page) + il_tx_cmd_complete(il, rxb); + else + IL_WARN("Claim null rxb?\n"); + } + + /* Reuse the page if possible. For notification packets and + * SKBs that fail to Rx correctly, add them back into the + * rx_free list for reuse later. */ + spin_lock_irqsave(&rxq->lock, flags); + if (rxb->page != NULL) { + rxb->page_dma = + pci_map_page(il->pci_dev, rxb->page, 0, + PAGE_SIZE << il->hw_params. + rx_page_order, PCI_DMA_FROMDEVICE); + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + } else + list_add_tail(&rxb->list, &rxq->rx_used); + + spin_unlock_irqrestore(&rxq->lock, flags); + + i = (i + 1) & RX_QUEUE_MASK; + /* If there are a lot of unused frames, + * restock the Rx queue so ucode won't assert. */ + if (fill_rx) { + count++; + if (count >= 8) { + rxq->read = i; + il3945_rx_replenish_now(il); + count = 0; + } + } + } + + /* Backtrack one entry */ + rxq->read = i; + if (fill_rx) + il3945_rx_replenish_now(il); + else + il3945_rx_queue_restock(il); +} + +/* call this function to flush any scheduled tasklet */ +static inline void +il3945_synchronize_irq(struct il_priv *il) +{ + /* wait to make sure we flush pending tasklet */ + synchronize_irq(il->pci_dev->irq); + tasklet_kill(&il->irq_tasklet); +} + +static const char * +il3945_desc_lookup(int i) +{ + switch (i) { + case 1: + return "FAIL"; + case 2: + return "BAD_PARAM"; + case 3: + return "BAD_CHECKSUM"; + case 4: + return "NMI_INTERRUPT"; + case 5: + return "SYSASSERT"; + case 6: + return "FATAL_ERROR"; + } + + return "UNKNOWN"; +} + +#define ERROR_START_OFFSET (1 * sizeof(u32)) +#define ERROR_ELEM_SIZE (7 * sizeof(u32)) + +void +il3945_dump_nic_error_log(struct il_priv *il) +{ + u32 i; + u32 desc, time, count, base, data1; + u32 blink1, blink2, ilink1, ilink2; + + base = le32_to_cpu(il->card_alive.error_event_table_ptr); + + if (!il3945_hw_valid_rtc_data_addr(base)) { + IL_ERR("Not valid error log pointer 0x%08X\n", base); + return; + } + + count = il_read_targ_mem(il, base); + + if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { + IL_ERR("Start IWL Error Log Dump:\n"); + IL_ERR("Status: 0x%08lX, count: %d\n", il->status, count); + } + + IL_ERR("Desc Time asrtPC blink2 " + "ilink1 nmiPC Line\n"); + for (i = ERROR_START_OFFSET; + i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; + i += ERROR_ELEM_SIZE) { + desc = il_read_targ_mem(il, base + i); + time = il_read_targ_mem(il, base + i + 1 * sizeof(u32)); + blink1 = il_read_targ_mem(il, base + i + 2 * sizeof(u32)); + blink2 = il_read_targ_mem(il, base + i + 3 * sizeof(u32)); + ilink1 = il_read_targ_mem(il, base + i + 4 * sizeof(u32)); + ilink2 = il_read_targ_mem(il, base + i + 5 * sizeof(u32)); + data1 = il_read_targ_mem(il, base + i + 6 * sizeof(u32)); + + IL_ERR("%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", + il3945_desc_lookup(desc), desc, time, blink1, blink2, + ilink1, ilink2, data1); + } +} + +static void +il3945_irq_tasklet(struct il_priv *il) +{ + u32 inta, handled = 0; + u32 inta_fh; + unsigned long flags; +#ifdef CONFIG_IWLEGACY_DEBUG + u32 inta_mask; +#endif + + spin_lock_irqsave(&il->lock, flags); + + /* Ack/clear/reset pending uCode interrupts. + * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, + * and will clear only when CSR_FH_INT_STATUS gets cleared. */ + inta = _il_rd(il, CSR_INT); + _il_wr(il, CSR_INT, inta); + + /* Ack/clear/reset pending flow-handler (DMA) interrupts. + * Any new interrupts that happen after this, either while we're + * in this tasklet, or later, will show up in next ISR/tasklet. */ + inta_fh = _il_rd(il, CSR_FH_INT_STATUS); + _il_wr(il, CSR_FH_INT_STATUS, inta_fh); + +#ifdef CONFIG_IWLEGACY_DEBUG + if (il_get_debug_level(il) & IL_DL_ISR) { + /* just for debug */ + inta_mask = _il_rd(il, CSR_INT_MASK); + D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta, + inta_mask, inta_fh); + } +#endif + + spin_unlock_irqrestore(&il->lock, flags); + + /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not + * atomic, make sure that inta covers all the interrupts that + * we've discovered, even if FH interrupt came in just after + * reading CSR_INT. */ + if (inta_fh & CSR39_FH_INT_RX_MASK) + inta |= CSR_INT_BIT_FH_RX; + if (inta_fh & CSR39_FH_INT_TX_MASK) + inta |= CSR_INT_BIT_FH_TX; + + /* Now service all interrupt bits discovered above. */ + if (inta & CSR_INT_BIT_HW_ERR) { + IL_ERR("Hardware error detected. Restarting.\n"); + + /* Tell the device to stop sending interrupts */ + il_disable_interrupts(il); + + il->isr_stats.hw++; + il_irq_handle_error(il); + + handled |= CSR_INT_BIT_HW_ERR; + + return; + } +#ifdef CONFIG_IWLEGACY_DEBUG + if (il_get_debug_level(il) & (IL_DL_ISR)) { + /* NIC fires this, but we don't use it, redundant with WAKEUP */ + if (inta & CSR_INT_BIT_SCD) { + D_ISR("Scheduler finished to transmit " + "the frame/frames.\n"); + il->isr_stats.sch++; + } + + /* Alive notification via Rx interrupt will do the real work */ + if (inta & CSR_INT_BIT_ALIVE) { + D_ISR("Alive interrupt\n"); + il->isr_stats.alive++; + } + } +#endif + /* Safely ignore these bits for debug checks below */ + inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); + + /* Error detected by uCode */ + if (inta & CSR_INT_BIT_SW_ERR) { + IL_ERR("Microcode SW error detected. " "Restarting 0x%X.\n", + inta); + il->isr_stats.sw++; + il_irq_handle_error(il); + handled |= CSR_INT_BIT_SW_ERR; + } + + /* uCode wakes up after power-down sleep */ + if (inta & CSR_INT_BIT_WAKEUP) { + D_ISR("Wakeup interrupt\n"); + il_rx_queue_update_write_ptr(il, &il->rxq); + il_txq_update_write_ptr(il, &il->txq[0]); + il_txq_update_write_ptr(il, &il->txq[1]); + il_txq_update_write_ptr(il, &il->txq[2]); + il_txq_update_write_ptr(il, &il->txq[3]); + il_txq_update_write_ptr(il, &il->txq[4]); + il_txq_update_write_ptr(il, &il->txq[5]); + + il->isr_stats.wakeup++; + handled |= CSR_INT_BIT_WAKEUP; + } + + /* All uCode command responses, including Tx command responses, + * Rx "responses" (frame-received notification), and other + * notifications from uCode come through here*/ + if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { + il3945_rx_handle(il); + il->isr_stats.rx++; + handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); + } + + if (inta & CSR_INT_BIT_FH_TX) { + D_ISR("Tx interrupt\n"); + il->isr_stats.tx++; + + _il_wr(il, CSR_FH_INT_STATUS, (1 << 6)); + il_wr(il, FH39_TCSR_CREDIT(FH39_SRVC_CHNL), 0x0); + handled |= CSR_INT_BIT_FH_TX; + } + + if (inta & ~handled) { + IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled); + il->isr_stats.unhandled++; + } + + if (inta & ~il->inta_mask) { + IL_WARN("Disabled INTA bits 0x%08x were pending\n", + inta & ~il->inta_mask); + IL_WARN(" with inta_fh = 0x%08x\n", inta_fh); + } + + /* Re-enable all interrupts */ + /* only Re-enable if disabled by irq */ + if (test_bit(S_INT_ENABLED, &il->status)) + il_enable_interrupts(il); + +#ifdef CONFIG_IWLEGACY_DEBUG + if (il_get_debug_level(il) & (IL_DL_ISR)) { + inta = _il_rd(il, CSR_INT); + inta_mask = _il_rd(il, CSR_INT_MASK); + inta_fh = _il_rd(il, CSR_FH_INT_STATUS); + D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " + "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); + } +#endif +} + +static int +il3945_get_channels_for_scan(struct il_priv *il, enum ieee80211_band band, + u8 is_active, u8 n_probes, + struct il3945_scan_channel *scan_ch, + struct ieee80211_vif *vif) +{ + struct ieee80211_channel *chan; + const struct ieee80211_supported_band *sband; + const struct il_channel_info *ch_info; + u16 passive_dwell = 0; + u16 active_dwell = 0; + int added, i; + + sband = il_get_hw_mode(il, band); + if (!sband) + return 0; + + active_dwell = il_get_active_dwell_time(il, band, n_probes); + passive_dwell = il_get_passive_dwell_time(il, band, vif); + + if (passive_dwell <= active_dwell) + passive_dwell = active_dwell + 1; + + for (i = 0, added = 0; i < il->scan_request->n_channels; i++) { + chan = il->scan_request->channels[i]; + + if (chan->band != band) + continue; + + scan_ch->channel = chan->hw_value; + + ch_info = il_get_channel_info(il, band, scan_ch->channel); + if (!il_is_channel_valid(ch_info)) { + D_SCAN("Channel %d is INVALID for this band.\n", + scan_ch->channel); + continue; + } + + scan_ch->active_dwell = cpu_to_le16(active_dwell); + scan_ch->passive_dwell = cpu_to_le16(passive_dwell); + /* If passive , set up for auto-switch + * and use long active_dwell time. + */ + if (!is_active || il_is_channel_passive(ch_info) || + (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) { + scan_ch->type = 0; /* passive */ + if (IL_UCODE_API(il->ucode_ver) == 1) + scan_ch->active_dwell = + cpu_to_le16(passive_dwell - 1); + } else { + scan_ch->type = 1; /* active */ + } + + /* Set direct probe bits. These may be used both for active + * scan channels (probes gets sent right away), + * or for passive channels (probes get se sent only after + * hearing clear Rx packet).*/ + if (IL_UCODE_API(il->ucode_ver) >= 2) { + if (n_probes) + scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); + } else { + /* uCode v1 does not allow setting direct probe bits on + * passive channel. */ + if ((scan_ch->type & 1) && n_probes) + scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); + } + + /* Set txpower levels to defaults */ + scan_ch->tpc.dsp_atten = 110; + /* scan_pwr_info->tpc.dsp_atten; */ + + /*scan_pwr_info->tpc.tx_gain; */ + if (band == IEEE80211_BAND_5GHZ) + scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; + else { + scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); + /* NOTE: if we were doing 6Mb OFDM for scans we'd use + * power level: + * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; + */ + } + + D_SCAN("Scanning %d [%s %d]\n", scan_ch->channel, + (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", + (scan_ch->type & 1) ? active_dwell : passive_dwell); + + scan_ch++; + added++; + } + + D_SCAN("total channels to scan %d\n", added); + return added; +} + +static void +il3945_init_hw_rates(struct il_priv *il, struct ieee80211_rate *rates) +{ + int i; + + for (i = 0; i < RATE_COUNT_LEGACY; i++) { + rates[i].bitrate = il3945_rates[i].ieee * 5; + rates[i].hw_value = i; /* Rate scaling will work on idxes */ + rates[i].hw_value_short = i; + rates[i].flags = 0; + if (i > IL39_LAST_OFDM_RATE || i < IL_FIRST_OFDM_RATE) { + /* + * If CCK != 1M then set short preamble rate flag. + */ + rates[i].flags |= + (il3945_rates[i].plcp == + 10) ? 0 : IEEE80211_RATE_SHORT_PREAMBLE; + } + } +} + +/****************************************************************************** + * + * uCode download functions + * + ******************************************************************************/ + +static void +il3945_dealloc_ucode_pci(struct il_priv *il) +{ + il_free_fw_desc(il->pci_dev, &il->ucode_code); + il_free_fw_desc(il->pci_dev, &il->ucode_data); + il_free_fw_desc(il->pci_dev, &il->ucode_data_backup); + il_free_fw_desc(il->pci_dev, &il->ucode_init); + il_free_fw_desc(il->pci_dev, &il->ucode_init_data); + il_free_fw_desc(il->pci_dev, &il->ucode_boot); +} + +/** + * il3945_verify_inst_full - verify runtime uCode image in card vs. host, + * looking at all data. + */ +static int +il3945_verify_inst_full(struct il_priv *il, __le32 * image, u32 len) +{ + u32 val; + u32 save_len = len; + int rc = 0; + u32 errcnt; + + D_INFO("ucode inst image size is %u\n", len); + + il_wr(il, HBUS_TARG_MEM_RADDR, IL39_RTC_INST_LOWER_BOUND); + + errcnt = 0; + for (; len > 0; len -= sizeof(u32), image++) { + /* read data comes through single port, auto-incr addr */ + /* NOTE: Use the debugless read so we don't flood kernel log + * if IL_DL_IO is set */ + val = _il_rd(il, HBUS_TARG_MEM_RDAT); + if (val != le32_to_cpu(*image)) { + IL_ERR("uCode INST section is invalid at " + "offset 0x%x, is 0x%x, s/b 0x%x\n", + save_len - len, val, le32_to_cpu(*image)); + rc = -EIO; + errcnt++; + if (errcnt >= 20) + break; + } + } + + if (!errcnt) + D_INFO("ucode image in INSTRUCTION memory is good\n"); + + return rc; +} + +/** + * il3945_verify_inst_sparse - verify runtime uCode image in card vs. host, + * using sample data 100 bytes apart. If these sample points are good, + * it's a pretty good bet that everything between them is good, too. + */ +static int +il3945_verify_inst_sparse(struct il_priv *il, __le32 * image, u32 len) +{ + u32 val; + int rc = 0; + u32 errcnt = 0; + u32 i; + + D_INFO("ucode inst image size is %u\n", len); + + for (i = 0; i < len; i += 100, image += 100 / sizeof(u32)) { + /* read data comes through single port, auto-incr addr */ + /* NOTE: Use the debugless read so we don't flood kernel log + * if IL_DL_IO is set */ + il_wr(il, HBUS_TARG_MEM_RADDR, i + IL39_RTC_INST_LOWER_BOUND); + val = _il_rd(il, HBUS_TARG_MEM_RDAT); + if (val != le32_to_cpu(*image)) { +#if 0 /* Enable this if you want to see details */ + IL_ERR("uCode INST section is invalid at " + "offset 0x%x, is 0x%x, s/b 0x%x\n", i, val, + *image); +#endif + rc = -EIO; + errcnt++; + if (errcnt >= 3) + break; + } + } + + return rc; +} + +/** + * il3945_verify_ucode - determine which instruction image is in SRAM, + * and verify its contents + */ +static int +il3945_verify_ucode(struct il_priv *il) +{ + __le32 *image; + u32 len; + int rc = 0; + + /* Try bootstrap */ + image = (__le32 *) il->ucode_boot.v_addr; + len = il->ucode_boot.len; + rc = il3945_verify_inst_sparse(il, image, len); + if (rc == 0) { + D_INFO("Bootstrap uCode is good in inst SRAM\n"); + return 0; + } + + /* Try initialize */ + image = (__le32 *) il->ucode_init.v_addr; + len = il->ucode_init.len; + rc = il3945_verify_inst_sparse(il, image, len); + if (rc == 0) { + D_INFO("Initialize uCode is good in inst SRAM\n"); + return 0; + } + + /* Try runtime/protocol */ + image = (__le32 *) il->ucode_code.v_addr; + len = il->ucode_code.len; + rc = il3945_verify_inst_sparse(il, image, len); + if (rc == 0) { + D_INFO("Runtime uCode is good in inst SRAM\n"); + return 0; + } + + IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); + + /* Since nothing seems to match, show first several data entries in + * instruction SRAM, so maybe visual inspection will give a clue. + * Selection of bootstrap image (vs. other images) is arbitrary. */ + image = (__le32 *) il->ucode_boot.v_addr; + len = il->ucode_boot.len; + rc = il3945_verify_inst_full(il, image, len); + + return rc; +} + +static void +il3945_nic_start(struct il_priv *il) +{ + /* Remove all resets to allow NIC to operate */ + _il_wr(il, CSR_RESET, 0); +} + +#define IL3945_UCODE_GET(item) \ +static u32 il3945_ucode_get_##item(const struct il_ucode_header *ucode)\ +{ \ + return le32_to_cpu(ucode->v1.item); \ +} + +static u32 +il3945_ucode_get_header_size(u32 api_ver) +{ + return 24; +} + +static u8 * +il3945_ucode_get_data(const struct il_ucode_header *ucode) +{ + return (u8 *) ucode->v1.data; +} + +IL3945_UCODE_GET(inst_size); +IL3945_UCODE_GET(data_size); +IL3945_UCODE_GET(init_size); +IL3945_UCODE_GET(init_data_size); +IL3945_UCODE_GET(boot_size); + +/** + * il3945_read_ucode - Read uCode images from disk file. + * + * Copy into buffers for card to fetch via bus-mastering + */ +static int +il3945_read_ucode(struct il_priv *il) +{ + const struct il_ucode_header *ucode; + int ret = -EINVAL, idx; + const struct firmware *ucode_raw; + /* firmware file name contains uCode/driver compatibility version */ + const char *name_pre = il->cfg->fw_name_pre; + const unsigned int api_max = il->cfg->ucode_api_max; + const unsigned int api_min = il->cfg->ucode_api_min; + char buf[25]; + u8 *src; + size_t len; + u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; + + /* Ask kernel firmware_class module to get the boot firmware off disk. + * request_firmware() is synchronous, file is in memory on return. */ + for (idx = api_max; idx >= api_min; idx--) { + sprintf(buf, "%s%u%s", name_pre, idx, ".ucode"); + ret = request_firmware(&ucode_raw, buf, &il->pci_dev->dev); + if (ret < 0) { + IL_ERR("%s firmware file req failed: %d\n", buf, ret); + if (ret == -ENOENT) + continue; + else + goto error; + } else { + if (idx < api_max) + IL_ERR("Loaded firmware %s, " + "which is deprecated. " + " Please use API v%u instead.\n", buf, + api_max); + D_INFO("Got firmware '%s' file " + "(%zd bytes) from disk\n", buf, ucode_raw->size); + break; + } + } + + if (ret < 0) + goto error; + + /* Make sure that we got at least our header! */ + if (ucode_raw->size < il3945_ucode_get_header_size(1)) { + IL_ERR("File size way too small!\n"); + ret = -EINVAL; + goto err_release; + } + + /* Data from ucode file: header followed by uCode images */ + ucode = (struct il_ucode_header *)ucode_raw->data; + + il->ucode_ver = le32_to_cpu(ucode->ver); + api_ver = IL_UCODE_API(il->ucode_ver); + inst_size = il3945_ucode_get_inst_size(ucode); + data_size = il3945_ucode_get_data_size(ucode); + init_size = il3945_ucode_get_init_size(ucode); + init_data_size = il3945_ucode_get_init_data_size(ucode); + boot_size = il3945_ucode_get_boot_size(ucode); + src = il3945_ucode_get_data(ucode); + + /* api_ver should match the api version forming part of the + * firmware filename ... but we don't check for that and only rely + * on the API version read from firmware header from here on forward */ + + if (api_ver < api_min || api_ver > api_max) { + IL_ERR("Driver unable to support your firmware API. " + "Driver supports v%u, firmware is v%u.\n", api_max, + api_ver); + il->ucode_ver = 0; + ret = -EINVAL; + goto err_release; + } + if (api_ver != api_max) + IL_ERR("Firmware has old API version. Expected %u, " + "got %u. New firmware can be obtained " + "from http://www.intellinuxwireless.org.\n", api_max, + api_ver); + + IL_INFO("loaded firmware version %u.%u.%u.%u\n", + IL_UCODE_MAJOR(il->ucode_ver), IL_UCODE_MINOR(il->ucode_ver), + IL_UCODE_API(il->ucode_ver), IL_UCODE_SERIAL(il->ucode_ver)); + + snprintf(il->hw->wiphy->fw_version, sizeof(il->hw->wiphy->fw_version), + "%u.%u.%u.%u", IL_UCODE_MAJOR(il->ucode_ver), + IL_UCODE_MINOR(il->ucode_ver), IL_UCODE_API(il->ucode_ver), + IL_UCODE_SERIAL(il->ucode_ver)); + + D_INFO("f/w package hdr ucode version raw = 0x%x\n", il->ucode_ver); + D_INFO("f/w package hdr runtime inst size = %u\n", inst_size); + D_INFO("f/w package hdr runtime data size = %u\n", data_size); + D_INFO("f/w package hdr init inst size = %u\n", init_size); + D_INFO("f/w package hdr init data size = %u\n", init_data_size); + D_INFO("f/w package hdr boot inst size = %u\n", boot_size); + + /* Verify size of file vs. image size info in file's header */ + if (ucode_raw->size != + il3945_ucode_get_header_size(api_ver) + inst_size + data_size + + init_size + init_data_size + boot_size) { + + D_INFO("uCode file size %zd does not match expected size\n", + ucode_raw->size); + ret = -EINVAL; + goto err_release; + } + + /* Verify that uCode images will fit in card's SRAM */ + if (inst_size > IL39_MAX_INST_SIZE) { + D_INFO("uCode instr len %d too large to fit in\n", inst_size); + ret = -EINVAL; + goto err_release; + } + + if (data_size > IL39_MAX_DATA_SIZE) { + D_INFO("uCode data len %d too large to fit in\n", data_size); + ret = -EINVAL; + goto err_release; + } + if (init_size > IL39_MAX_INST_SIZE) { + D_INFO("uCode init instr len %d too large to fit in\n", + init_size); + ret = -EINVAL; + goto err_release; + } + if (init_data_size > IL39_MAX_DATA_SIZE) { + D_INFO("uCode init data len %d too large to fit in\n", + init_data_size); + ret = -EINVAL; + goto err_release; + } + if (boot_size > IL39_MAX_BSM_SIZE) { + D_INFO("uCode boot instr len %d too large to fit in\n", + boot_size); + ret = -EINVAL; + goto err_release; + } + + /* Allocate ucode buffers for card's bus-master loading ... */ + + /* Runtime instructions and 2 copies of data: + * 1) unmodified from disk + * 2) backup cache for save/restore during power-downs */ + il->ucode_code.len = inst_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_code); + + il->ucode_data.len = data_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_data); + + il->ucode_data_backup.len = data_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup); + + if (!il->ucode_code.v_addr || !il->ucode_data.v_addr || + !il->ucode_data_backup.v_addr) + goto err_pci_alloc; + + /* Initialization instructions and data */ + if (init_size && init_data_size) { + il->ucode_init.len = init_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_init); + + il->ucode_init_data.len = init_data_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data); + + if (!il->ucode_init.v_addr || !il->ucode_init_data.v_addr) + goto err_pci_alloc; + } + + /* Bootstrap (instructions only, no data) */ + if (boot_size) { + il->ucode_boot.len = boot_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_boot); + + if (!il->ucode_boot.v_addr) + goto err_pci_alloc; + } + + /* Copy images into buffers for card's bus-master reads ... */ + + /* Runtime instructions (first block of data in file) */ + len = inst_size; + D_INFO("Copying (but not loading) uCode instr len %zd\n", len); + memcpy(il->ucode_code.v_addr, src, len); + src += len; + + D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", + il->ucode_code.v_addr, (u32) il->ucode_code.p_addr); + + /* Runtime data (2nd block) + * NOTE: Copy into backup buffer will be done in il3945_up() */ + len = data_size; + D_INFO("Copying (but not loading) uCode data len %zd\n", len); + memcpy(il->ucode_data.v_addr, src, len); + memcpy(il->ucode_data_backup.v_addr, src, len); + src += len; + + /* Initialization instructions (3rd block) */ + if (init_size) { + len = init_size; + D_INFO("Copying (but not loading) init instr len %zd\n", len); + memcpy(il->ucode_init.v_addr, src, len); + src += len; + } + + /* Initialization data (4th block) */ + if (init_data_size) { + len = init_data_size; + D_INFO("Copying (but not loading) init data len %zd\n", len); + memcpy(il->ucode_init_data.v_addr, src, len); + src += len; + } + + /* Bootstrap instructions (5th block) */ + len = boot_size; + D_INFO("Copying (but not loading) boot instr len %zd\n", len); + memcpy(il->ucode_boot.v_addr, src, len); + + /* We have our copies now, allow OS release its copies */ + release_firmware(ucode_raw); + return 0; + +err_pci_alloc: + IL_ERR("failed to allocate pci memory\n"); + ret = -ENOMEM; + il3945_dealloc_ucode_pci(il); + +err_release: + release_firmware(ucode_raw); + +error: + return ret; +} + +/** + * il3945_set_ucode_ptrs - Set uCode address location + * + * Tell initialization uCode where to find runtime uCode. + * + * BSM registers initially contain pointers to initialization uCode. + * We need to replace them to load runtime uCode inst and data, + * and to save runtime data when powering down. + */ +static int +il3945_set_ucode_ptrs(struct il_priv *il) +{ + dma_addr_t pinst; + dma_addr_t pdata; + + /* bits 31:0 for 3945 */ + pinst = il->ucode_code.p_addr; + pdata = il->ucode_data_backup.p_addr; + + /* Tell bootstrap uCode where to find image to load */ + il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); + il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); + il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, il->ucode_data.len); + + /* Inst byte count must be last to set up, bit 31 signals uCode + * that all new ptr/size info is in place */ + il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, + il->ucode_code.len | BSM_DRAM_INST_LOAD); + + D_INFO("Runtime uCode pointers are set.\n"); + + return 0; +} + +/** + * il3945_init_alive_start - Called after N_ALIVE notification received + * + * Called after N_ALIVE notification received from "initialize" uCode. + * + * Tell "initialize" uCode to go ahead and load the runtime uCode. + */ +static void +il3945_init_alive_start(struct il_priv *il) +{ + /* Check alive response for "valid" sign from uCode */ + if (il->card_alive_init.is_valid != UCODE_VALID_OK) { + /* We had an error bringing up the hardware, so take it + * all the way back down so we can try again */ + D_INFO("Initialize Alive failed.\n"); + goto restart; + } + + /* Bootstrap uCode has loaded initialize uCode ... verify inst image. + * This is a paranoid check, because we would not have gotten the + * "initialize" alive if code weren't properly loaded. */ + if (il3945_verify_ucode(il)) { + /* Runtime instruction load was bad; + * take it all the way back down so we can try again */ + D_INFO("Bad \"initialize\" uCode load.\n"); + goto restart; + } + + /* Send pointers to protocol/runtime uCode image ... init code will + * load and launch runtime uCode, which will send us another "Alive" + * notification. */ + D_INFO("Initialization Alive received.\n"); + if (il3945_set_ucode_ptrs(il)) { + /* Runtime instruction load won't happen; + * take it all the way back down so we can try again */ + D_INFO("Couldn't set up uCode pointers.\n"); + goto restart; + } + return; + +restart: + queue_work(il->workqueue, &il->restart); +} + +/** + * il3945_alive_start - called after N_ALIVE notification received + * from protocol/runtime uCode (initialization uCode's + * Alive gets handled by il3945_init_alive_start()). + */ +static void +il3945_alive_start(struct il_priv *il) +{ + int thermal_spin = 0; + u32 rfkill; + struct il_rxon_context *ctx = &il->ctx; + + D_INFO("Runtime Alive received.\n"); + + if (il->card_alive.is_valid != UCODE_VALID_OK) { + /* We had an error bringing up the hardware, so take it + * all the way back down so we can try again */ + D_INFO("Alive failed.\n"); + goto restart; + } + + /* Initialize uCode has loaded Runtime uCode ... verify inst image. + * This is a paranoid check, because we would not have gotten the + * "runtime" alive if code weren't properly loaded. */ + if (il3945_verify_ucode(il)) { + /* Runtime instruction load was bad; + * take it all the way back down so we can try again */ + D_INFO("Bad runtime uCode load.\n"); + goto restart; + } + + rfkill = il_rd_prph(il, APMG_RFKILL_REG); + D_INFO("RFKILL status: 0x%x\n", rfkill); + + if (rfkill & 0x1) { + clear_bit(S_RF_KILL_HW, &il->status); + /* if RFKILL is not on, then wait for thermal + * sensor in adapter to kick in */ + while (il3945_hw_get_temperature(il) == 0) { + thermal_spin++; + udelay(10); + } + + if (thermal_spin) + D_INFO("Thermal calibration took %dus\n", + thermal_spin * 10); + } else + set_bit(S_RF_KILL_HW, &il->status); + + /* After the ALIVE response, we can send commands to 3945 uCode */ + set_bit(S_ALIVE, &il->status); + + /* Enable watchdog to monitor the driver tx queues */ + il_setup_watchdog(il); + + if (il_is_rfkill(il)) + return; + + ieee80211_wake_queues(il->hw); + + il->active_rate = RATES_MASK_3945; + + il_power_update_mode(il, true); + + if (il_is_associated(il)) { + struct il3945_rxon_cmd *active_rxon = + (struct il3945_rxon_cmd *)(&ctx->active); + + ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; + active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; + } else { + /* Initialize our rx_config data */ + il_connection_init_rx_config(il, ctx); + } + + /* Configure Bluetooth device coexistence support */ + il_send_bt_config(il); + + set_bit(S_READY, &il->status); + + /* Configure the adapter for unassociated operation */ + il3945_commit_rxon(il, ctx); + + il3945_reg_txpower_periodic(il); + + D_INFO("ALIVE processing complete.\n"); + wake_up(&il->wait_command_queue); + + return; + +restart: + queue_work(il->workqueue, &il->restart); +} + +static void il3945_cancel_deferred_work(struct il_priv *il); + +static void +__il3945_down(struct il_priv *il) +{ + unsigned long flags; + int exit_pending; + + D_INFO(DRV_NAME " is going down\n"); + + il_scan_cancel_timeout(il, 200); + + exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status); + + /* Stop TX queues watchdog. We need to have S_EXIT_PENDING bit set + * to prevent rearm timer */ + del_timer_sync(&il->watchdog); + + /* Station information will now be cleared in device */ + il_clear_ucode_stations(il, NULL); + il_dealloc_bcast_stations(il); + il_clear_driver_stations(il); + + /* Unblock any waiting calls */ + wake_up_all(&il->wait_command_queue); + + /* Wipe out the EXIT_PENDING status bit if we are not actually + * exiting the module */ + if (!exit_pending) + clear_bit(S_EXIT_PENDING, &il->status); + + /* stop and reset the on-board processor */ + _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); + + /* tell the device to stop sending interrupts */ + spin_lock_irqsave(&il->lock, flags); + il_disable_interrupts(il); + spin_unlock_irqrestore(&il->lock, flags); + il3945_synchronize_irq(il); + + if (il->mac80211_registered) + ieee80211_stop_queues(il->hw); + + /* If we have not previously called il3945_init() then + * clear all bits but the RF Kill bits and return */ + if (!il_is_init(il)) { + il->status = + test_bit(S_RF_KILL_HW, + &il-> + status) << S_RF_KILL_HW | + test_bit(S_GEO_CONFIGURED, + &il-> + status) << S_GEO_CONFIGURED | + test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; + goto exit; + } + + /* ...otherwise clear out all the status bits but the RF Kill + * bit and continue taking the NIC down. */ + il->status &= + test_bit(S_RF_KILL_HW, + &il->status) << S_RF_KILL_HW | test_bit(S_GEO_CONFIGURED, + &il-> + status) << + S_GEO_CONFIGURED | test_bit(S_FW_ERROR, + &il-> + status) << S_FW_ERROR | + test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; + + il3945_hw_txq_ctx_stop(il); + il3945_hw_rxq_stop(il); + + /* Power-down device's busmaster DMA clocks */ + il_wr_prph(il, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); + udelay(5); + + /* Stop the device, and put it in low power state */ + il_apm_stop(il); + +exit: + memset(&il->card_alive, 0, sizeof(struct il_alive_resp)); + + if (il->beacon_skb) + dev_kfree_skb(il->beacon_skb); + il->beacon_skb = NULL; + + /* clear out any free frames */ + il3945_clear_free_frames(il); +} + +static void +il3945_down(struct il_priv *il) +{ + mutex_lock(&il->mutex); + __il3945_down(il); + mutex_unlock(&il->mutex); + + il3945_cancel_deferred_work(il); +} + +#define MAX_HW_RESTARTS 5 + +static int +il3945_alloc_bcast_station(struct il_priv *il) +{ + struct il_rxon_context *ctx = &il->ctx; + unsigned long flags; + u8 sta_id; + + spin_lock_irqsave(&il->sta_lock, flags); + sta_id = il_prep_station(il, ctx, il_bcast_addr, false, NULL); + if (sta_id == IL_INVALID_STATION) { + IL_ERR("Unable to prepare broadcast station\n"); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return -EINVAL; + } + + il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE; + il->stations[sta_id].used |= IL_STA_BCAST; + spin_unlock_irqrestore(&il->sta_lock, flags); + + return 0; +} + +static int +__il3945_up(struct il_priv *il) +{ + int rc, i; + + rc = il3945_alloc_bcast_station(il); + if (rc) + return rc; + + if (test_bit(S_EXIT_PENDING, &il->status)) { + IL_WARN("Exit pending; will not bring the NIC up\n"); + return -EIO; + } + + if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) { + IL_ERR("ucode not available for device bring up\n"); + return -EIO; + } + + /* If platform's RF_KILL switch is NOT set to KILL */ + if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) + clear_bit(S_RF_KILL_HW, &il->status); + else { + set_bit(S_RF_KILL_HW, &il->status); + IL_WARN("Radio disabled by HW RF Kill switch\n"); + return -ENODEV; + } + + _il_wr(il, CSR_INT, 0xFFFFFFFF); + + rc = il3945_hw_nic_init(il); + if (rc) { + IL_ERR("Unable to int nic\n"); + return rc; + } + + /* make sure rfkill handshake bits are cleared */ + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); + + /* clear (again), then enable host interrupts */ + _il_wr(il, CSR_INT, 0xFFFFFFFF); + il_enable_interrupts(il); + + /* really make sure rfkill handshake bits are cleared */ + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + + /* Copy original ucode data image from disk into backup cache. + * This will be used to initialize the on-board processor's + * data SRAM for a clean start when the runtime program first loads. */ + memcpy(il->ucode_data_backup.v_addr, il->ucode_data.v_addr, + il->ucode_data.len); + + /* We return success when we resume from suspend and rf_kill is on. */ + if (test_bit(S_RF_KILL_HW, &il->status)) + return 0; + + for (i = 0; i < MAX_HW_RESTARTS; i++) { + + /* load bootstrap state machine, + * load bootstrap program into processor's memory, + * prepare to load the "initialize" uCode */ + rc = il->cfg->ops->lib->load_ucode(il); + + if (rc) { + IL_ERR("Unable to set up bootstrap uCode: %d\n", rc); + continue; + } + + /* start card; "initialize" will load runtime ucode */ + il3945_nic_start(il); + + D_INFO(DRV_NAME " is coming up\n"); + + return 0; + } + + set_bit(S_EXIT_PENDING, &il->status); + __il3945_down(il); + clear_bit(S_EXIT_PENDING, &il->status); + + /* tried to restart and config the device for as long as our + * patience could withstand */ + IL_ERR("Unable to initialize device after %d attempts.\n", i); + return -EIO; +} + +/***************************************************************************** + * + * Workqueue callbacks + * + *****************************************************************************/ + +static void +il3945_bg_init_alive_start(struct work_struct *data) +{ + struct il_priv *il = + container_of(data, struct il_priv, init_alive_start.work); + + mutex_lock(&il->mutex); + if (test_bit(S_EXIT_PENDING, &il->status)) + goto out; + + il3945_init_alive_start(il); +out: + mutex_unlock(&il->mutex); +} + +static void +il3945_bg_alive_start(struct work_struct *data) +{ + struct il_priv *il = + container_of(data, struct il_priv, alive_start.work); + + mutex_lock(&il->mutex); + if (test_bit(S_EXIT_PENDING, &il->status)) + goto out; + + il3945_alive_start(il); +out: + mutex_unlock(&il->mutex); +} + +/* + * 3945 cannot interrupt driver when hardware rf kill switch toggles; + * driver must poll CSR_GP_CNTRL_REG register for change. This register + * *is* readable even when device has been SW_RESET into low power mode + * (e.g. during RF KILL). + */ +static void +il3945_rfkill_poll(struct work_struct *data) +{ + struct il_priv *il = + container_of(data, struct il_priv, _3945.rfkill_poll.work); + bool old_rfkill = test_bit(S_RF_KILL_HW, &il->status); + bool new_rfkill = + !(_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); + + if (new_rfkill != old_rfkill) { + if (new_rfkill) + set_bit(S_RF_KILL_HW, &il->status); + else + clear_bit(S_RF_KILL_HW, &il->status); + + wiphy_rfkill_set_hw_state(il->hw->wiphy, new_rfkill); + + D_RF_KILL("RF_KILL bit toggled to %s.\n", + new_rfkill ? "disable radio" : "enable radio"); + } + + /* Keep this running, even if radio now enabled. This will be + * cancelled in mac_start() if system decides to start again */ + queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, + round_jiffies_relative(2 * HZ)); + +} + +int +il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif) +{ + struct il_host_cmd cmd = { + .id = C_SCAN, + .len = sizeof(struct il3945_scan_cmd), + .flags = CMD_SIZE_HUGE, + }; + struct il3945_scan_cmd *scan; + u8 n_probes = 0; + enum ieee80211_band band; + bool is_active = false; + int ret; + u16 len; + + lockdep_assert_held(&il->mutex); + + if (!il->scan_cmd) { + il->scan_cmd = + kmalloc(sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE, + GFP_KERNEL); + if (!il->scan_cmd) { + D_SCAN("Fail to allocate scan memory\n"); + return -ENOMEM; + } + } + scan = il->scan_cmd; + memset(scan, 0, sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE); + + scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH; + scan->quiet_time = IL_ACTIVE_QUIET_TIME; + + if (il_is_associated(il)) { + u16 interval; + u32 extra; + u32 suspend_time = 100; + u32 scan_suspend_time = 100; + + D_INFO("Scanning while associated...\n"); + + interval = vif->bss_conf.beacon_int; + + scan->suspend_time = 0; + scan->max_out_time = cpu_to_le32(200 * 1024); + if (!interval) + interval = suspend_time; + /* + * suspend time format: + * 0-19: beacon interval in usec (time before exec.) + * 20-23: 0 + * 24-31: number of beacons (suspend between channels) + */ + + extra = (suspend_time / interval) << 24; + scan_suspend_time = + 0xFF0FFFFF & (extra | ((suspend_time % interval) * 1024)); + + scan->suspend_time = cpu_to_le32(scan_suspend_time); + D_SCAN("suspend_time 0x%X beacon interval %d\n", + scan_suspend_time, interval); + } + + if (il->scan_request->n_ssids) { + int i, p = 0; + D_SCAN("Kicking off active scan\n"); + for (i = 0; i < il->scan_request->n_ssids; i++) { + /* always does wildcard anyway */ + if (!il->scan_request->ssids[i].ssid_len) + continue; + scan->direct_scan[p].id = WLAN_EID_SSID; + scan->direct_scan[p].len = + il->scan_request->ssids[i].ssid_len; + memcpy(scan->direct_scan[p].ssid, + il->scan_request->ssids[i].ssid, + il->scan_request->ssids[i].ssid_len); + n_probes++; + p++; + } + is_active = true; + } else + D_SCAN("Kicking off passive scan.\n"); + + /* We don't build a direct scan probe request; the uCode will do + * that based on the direct_mask added to each channel entry */ + scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; + scan->tx_cmd.sta_id = il->ctx.bcast_sta_id; + scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + + /* flags + rate selection */ + + switch (il->scan_band) { + case IEEE80211_BAND_2GHZ: + scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; + scan->tx_cmd.rate = RATE_1M_PLCP; + band = IEEE80211_BAND_2GHZ; + break; + case IEEE80211_BAND_5GHZ: + scan->tx_cmd.rate = RATE_6M_PLCP; + band = IEEE80211_BAND_5GHZ; + break; + default: + IL_WARN("Invalid scan band\n"); + return -EIO; + } + + /* + * If active scaning is requested but a certain channel + * is marked passive, we can do active scanning if we + * detect transmissions. + */ + scan->good_CRC_th = + is_active ? IL_GOOD_CRC_TH_DEFAULT : IL_GOOD_CRC_TH_DISABLED; + + len = + il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data, + vif->addr, il->scan_request->ie, + il->scan_request->ie_len, + IL_MAX_SCAN_SIZE - sizeof(*scan)); + scan->tx_cmd.len = cpu_to_le16(len); + + /* select Rx antennas */ + scan->flags |= il3945_get_antenna_flags(il); + + scan->channel_count = + il3945_get_channels_for_scan(il, band, is_active, n_probes, + (void *)&scan->data[len], vif); + if (scan->channel_count == 0) { + D_SCAN("channel count %d\n", scan->channel_count); + return -EIO; + } + + cmd.len += + le16_to_cpu(scan->tx_cmd.len) + + scan->channel_count * sizeof(struct il3945_scan_channel); + cmd.data = scan; + scan->len = cpu_to_le16(cmd.len); + + set_bit(S_SCAN_HW, &il->status); + ret = il_send_cmd_sync(il, &cmd); + if (ret) + clear_bit(S_SCAN_HW, &il->status); + return ret; +} + +void +il3945_post_scan(struct il_priv *il) +{ + struct il_rxon_context *ctx = &il->ctx; + + /* + * Since setting the RXON may have been deferred while + * performing the scan, fire one off if needed + */ + if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) + il3945_commit_rxon(il, ctx); +} + +static void +il3945_bg_restart(struct work_struct *data) +{ + struct il_priv *il = container_of(data, struct il_priv, restart); + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + if (test_and_clear_bit(S_FW_ERROR, &il->status)) { + mutex_lock(&il->mutex); + il->ctx.vif = NULL; + il->is_open = 0; + mutex_unlock(&il->mutex); + il3945_down(il); + ieee80211_restart_hw(il->hw); + } else { + il3945_down(il); + + mutex_lock(&il->mutex); + if (test_bit(S_EXIT_PENDING, &il->status)) { + mutex_unlock(&il->mutex); + return; + } + + __il3945_up(il); + mutex_unlock(&il->mutex); + } +} + +static void +il3945_bg_rx_replenish(struct work_struct *data) +{ + struct il_priv *il = container_of(data, struct il_priv, rx_replenish); + + mutex_lock(&il->mutex); + if (test_bit(S_EXIT_PENDING, &il->status)) + goto out; + + il3945_rx_replenish(il); +out: + mutex_unlock(&il->mutex); +} + +void +il3945_post_associate(struct il_priv *il) +{ + int rc = 0; + struct ieee80211_conf *conf = NULL; + struct il_rxon_context *ctx = &il->ctx; + + if (!ctx->vif || !il->is_open) + return; + + D_ASSOC("Associated as %d to: %pM\n", ctx->vif->bss_conf.aid, + ctx->active.bssid_addr); + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + il_scan_cancel_timeout(il, 200); + + conf = &il->hw->conf; + + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + il3945_commit_rxon(il, ctx); + + rc = il_send_rxon_timing(il, ctx); + if (rc) + IL_WARN("C_RXON_TIMING failed - " "Attempting to continue.\n"); + + ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; + + ctx->staging.assoc_id = cpu_to_le16(ctx->vif->bss_conf.aid); + + D_ASSOC("assoc id %d beacon interval %d\n", ctx->vif->bss_conf.aid, + ctx->vif->bss_conf.beacon_int); + + if (ctx->vif->bss_conf.use_short_preamble) + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + + if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { + if (ctx->vif->bss_conf.use_short_slot) + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; + } + + il3945_commit_rxon(il, ctx); + + switch (ctx->vif->type) { + case NL80211_IFTYPE_STATION: + il3945_rate_scale_init(il->hw, IL_AP_ID); + break; + case NL80211_IFTYPE_ADHOC: + il3945_send_beacon_cmd(il); + break; + default: + IL_ERR("%s Should not be called in %d mode\n", __func__, + ctx->vif->type); + break; + } +} + +/***************************************************************************** + * + * mac80211 entry point functions + * + *****************************************************************************/ + +#define UCODE_READY_TIMEOUT (2 * HZ) + +static int +il3945_mac_start(struct ieee80211_hw *hw) +{ + struct il_priv *il = hw->priv; + int ret; + + D_MAC80211("enter\n"); + + /* we should be verifying the device is ready to be opened */ + mutex_lock(&il->mutex); + + /* fetch ucode file from disk, alloc and copy to bus-master buffers ... + * ucode filename and max sizes are card-specific. */ + + if (!il->ucode_code.len) { + ret = il3945_read_ucode(il); + if (ret) { + IL_ERR("Could not read microcode: %d\n", ret); + mutex_unlock(&il->mutex); + goto out_release_irq; + } + } + + ret = __il3945_up(il); + + mutex_unlock(&il->mutex); + + if (ret) + goto out_release_irq; + + D_INFO("Start UP work.\n"); + + /* Wait for START_ALIVE from ucode. Otherwise callbacks from + * mac80211 will not be run successfully. */ + ret = wait_event_timeout(il->wait_command_queue, + test_bit(S_READY, &il->status), + UCODE_READY_TIMEOUT); + if (!ret) { + if (!test_bit(S_READY, &il->status)) { + IL_ERR("Wait for START_ALIVE timeout after %dms.\n", + jiffies_to_msecs(UCODE_READY_TIMEOUT)); + ret = -ETIMEDOUT; + goto out_release_irq; + } + } + + /* ucode is running and will send rfkill notifications, + * no need to poll the killswitch state anymore */ + cancel_delayed_work(&il->_3945.rfkill_poll); + + il->is_open = 1; + D_MAC80211("leave\n"); + return 0; + +out_release_irq: + il->is_open = 0; + D_MAC80211("leave - failed\n"); + return ret; +} + +static void +il3945_mac_stop(struct ieee80211_hw *hw) +{ + struct il_priv *il = hw->priv; + + D_MAC80211("enter\n"); + + if (!il->is_open) { + D_MAC80211("leave - skip\n"); + return; + } + + il->is_open = 0; + + il3945_down(il); + + flush_workqueue(il->workqueue); + + /* start polling the killswitch state again */ + queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, + round_jiffies_relative(2 * HZ)); + + D_MAC80211("leave\n"); +} + +static void +il3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct il_priv *il = hw->priv; + + D_MAC80211("enter\n"); + + D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, + ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); + + if (il3945_tx_skb(il, skb)) + dev_kfree_skb_any(skb); + + D_MAC80211("leave\n"); +} + +void +il3945_config_ap(struct il_priv *il) +{ + struct il_rxon_context *ctx = &il->ctx; + struct ieee80211_vif *vif = ctx->vif; + int rc = 0; + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + /* The following should be done only at AP bring up */ + if (!(il_is_associated(il))) { + + /* RXON - unassoc (to set timing command) */ + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + il3945_commit_rxon(il, ctx); + + /* RXON Timing */ + rc = il_send_rxon_timing(il, ctx); + if (rc) + IL_WARN("C_RXON_TIMING failed - " + "Attempting to continue.\n"); + + ctx->staging.assoc_id = 0; + + if (vif->bss_conf.use_short_preamble) + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + + if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { + if (vif->bss_conf.use_short_slot) + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; + } + /* restore RXON assoc */ + ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; + il3945_commit_rxon(il, ctx); + } + il3945_send_beacon_cmd(il); +} + +static int +il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct il_priv *il = hw->priv; + int ret = 0; + u8 sta_id = IL_INVALID_STATION; + u8 static_key; + + D_MAC80211("enter\n"); + + if (il3945_mod_params.sw_crypto) { + D_MAC80211("leave - hwcrypto disabled\n"); + return -EOPNOTSUPP; + } + + /* + * To support IBSS RSN, don't program group keys in IBSS, the + * hardware will then not attempt to decrypt the frames. + */ + if (vif->type == NL80211_IFTYPE_ADHOC && + !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) + return -EOPNOTSUPP; + + static_key = !il_is_associated(il); + + if (!static_key) { + sta_id = il_sta_id_or_broadcast(il, &il->ctx, sta); + if (sta_id == IL_INVALID_STATION) + return -EINVAL; + } + + mutex_lock(&il->mutex); + il_scan_cancel_timeout(il, 100); + + switch (cmd) { + case SET_KEY: + if (static_key) + ret = il3945_set_static_key(il, key); + else + ret = il3945_set_dynamic_key(il, key, sta_id); + D_MAC80211("enable hwcrypto key\n"); + break; + case DISABLE_KEY: + if (static_key) + ret = il3945_remove_static_key(il); + else + ret = il3945_clear_sta_key_info(il, sta_id); + D_MAC80211("disable hwcrypto key\n"); + break; + default: + ret = -EINVAL; + } + + mutex_unlock(&il->mutex); + D_MAC80211("leave\n"); + + return ret; +} + +static int +il3945_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct il_priv *il = hw->priv; + struct il3945_sta_priv *sta_priv = (void *)sta->drv_priv; + int ret; + bool is_ap = vif->type == NL80211_IFTYPE_STATION; + u8 sta_id; + + D_INFO("received request to add station %pM\n", sta->addr); + mutex_lock(&il->mutex); + D_INFO("proceeding to add station %pM\n", sta->addr); + sta_priv->common.sta_id = IL_INVALID_STATION; + + ret = + il_add_station_common(il, &il->ctx, sta->addr, is_ap, sta, &sta_id); + if (ret) { + IL_ERR("Unable to add station %pM (%d)\n", sta->addr, ret); + /* Should we return success if return code is EEXIST ? */ + mutex_unlock(&il->mutex); + return ret; + } + + sta_priv->common.sta_id = sta_id; + + /* Initialize rate scaling */ + D_INFO("Initializing rate scaling for station %pM\n", sta->addr); + il3945_rs_rate_init(il, sta, sta_id); + mutex_unlock(&il->mutex); + + return 0; +} + +static void +il3945_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, + unsigned int *total_flags, u64 multicast) +{ + struct il_priv *il = hw->priv; + __le32 filter_or = 0, filter_nand = 0; + struct il_rxon_context *ctx = &il->ctx; + +#define CHK(test, flag) do { \ + if (*total_flags & (test)) \ + filter_or |= (flag); \ + else \ + filter_nand |= (flag); \ + } while (0) + + D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags, + *total_flags); + + CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); + CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK); + CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); + +#undef CHK + + mutex_lock(&il->mutex); + + ctx->staging.filter_flags &= ~filter_nand; + ctx->staging.filter_flags |= filter_or; + + /* + * Not committing directly because hardware can perform a scan, + * but even if hw is ready, committing here breaks for some reason, + * we'll eventually commit the filter flags change anyway. + */ + + mutex_unlock(&il->mutex); + + /* + * Receiving all multicast frames is always enabled by the + * default flags setup in il_connection_init_rx_config() + * since we currently do not support programming multicast + * filters into the device. + */ + *total_flags &= + FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | + FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; +} + +/***************************************************************************** + * + * sysfs attributes + * + *****************************************************************************/ + +#ifdef CONFIG_IWLEGACY_DEBUG + +/* + * The following adds a new attribute to the sysfs representation + * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) + * used for controlling the debug level. + * + * See the level definitions in iwl for details. + * + * The debug_level being managed using sysfs below is a per device debug + * level that is used instead of the global debug level if it (the per + * device debug level) is set. + */ +static ssize_t +il3945_show_debug_level(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + return sprintf(buf, "0x%08X\n", il_get_debug_level(il)); +} + +static ssize_t +il3945_store_debug_level(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 0, &val); + if (ret) + IL_INFO("%s is not in hex or decimal form.\n", buf); + else { + il->debug_level = val; + if (il_alloc_traffic_mem(il)) + IL_ERR("Not enough memory to generate traffic log\n"); + } + return strnlen(buf, count); +} + +static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, il3945_show_debug_level, + il3945_store_debug_level); + +#endif /* CONFIG_IWLEGACY_DEBUG */ + +static ssize_t +il3945_show_temperature(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + + if (!il_is_alive(il)) + return -EAGAIN; + + return sprintf(buf, "%d\n", il3945_hw_get_temperature(il)); +} + +static DEVICE_ATTR(temperature, S_IRUGO, il3945_show_temperature, NULL); + +static ssize_t +il3945_show_tx_power(struct device *d, struct device_attribute *attr, char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + return sprintf(buf, "%d\n", il->tx_power_user_lmt); +} + +static ssize_t +il3945_store_tx_power(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + char *p = (char *)buf; + u32 val; + + val = simple_strtoul(p, &p, 10); + if (p == buf) + IL_INFO(": %s is not in decimal form.\n", buf); + else + il3945_hw_reg_set_txpower(il, val); + + return count; +} + +static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il3945_show_tx_power, + il3945_store_tx_power); + +static ssize_t +il3945_show_flags(struct device *d, struct device_attribute *attr, char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + struct il_rxon_context *ctx = &il->ctx; + + return sprintf(buf, "0x%04X\n", ctx->active.flags); +} + +static ssize_t +il3945_store_flags(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + u32 flags = simple_strtoul(buf, NULL, 0); + struct il_rxon_context *ctx = &il->ctx; + + mutex_lock(&il->mutex); + if (le32_to_cpu(ctx->staging.flags) != flags) { + /* Cancel any currently running scans... */ + if (il_scan_cancel_timeout(il, 100)) + IL_WARN("Could not cancel scan.\n"); + else { + D_INFO("Committing rxon.flags = 0x%04X\n", flags); + ctx->staging.flags = cpu_to_le32(flags); + il3945_commit_rxon(il, ctx); + } + } + mutex_unlock(&il->mutex); + + return count; +} + +static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, il3945_show_flags, + il3945_store_flags); + +static ssize_t +il3945_show_filter_flags(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + struct il_rxon_context *ctx = &il->ctx; + + return sprintf(buf, "0x%04X\n", le32_to_cpu(ctx->active.filter_flags)); +} + +static ssize_t +il3945_store_filter_flags(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + struct il_rxon_context *ctx = &il->ctx; + u32 filter_flags = simple_strtoul(buf, NULL, 0); + + mutex_lock(&il->mutex); + if (le32_to_cpu(ctx->staging.filter_flags) != filter_flags) { + /* Cancel any currently running scans... */ + if (il_scan_cancel_timeout(il, 100)) + IL_WARN("Could not cancel scan.\n"); + else { + D_INFO("Committing rxon.filter_flags = " "0x%04X\n", + filter_flags); + ctx->staging.filter_flags = cpu_to_le32(filter_flags); + il3945_commit_rxon(il, ctx); + } + } + mutex_unlock(&il->mutex); + + return count; +} + +static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, il3945_show_filter_flags, + il3945_store_filter_flags); + +static ssize_t +il3945_show_measurement(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + struct il_spectrum_notification measure_report; + u32 size = sizeof(measure_report), len = 0, ofs = 0; + u8 *data = (u8 *) &measure_report; + unsigned long flags; + + spin_lock_irqsave(&il->lock, flags); + if (!(il->measurement_status & MEASUREMENT_READY)) { + spin_unlock_irqrestore(&il->lock, flags); + return 0; + } + memcpy(&measure_report, &il->measure_report, size); + il->measurement_status = 0; + spin_unlock_irqrestore(&il->lock, flags); + + while (size && PAGE_SIZE - len) { + hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, + PAGE_SIZE - len, 1); + len = strlen(buf); + if (PAGE_SIZE - len) + buf[len++] = '\n'; + + ofs += 16; + size -= min(size, 16U); + } + + return len; +} + +static ssize_t +il3945_store_measurement(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + struct il_rxon_context *ctx = &il->ctx; + struct ieee80211_measurement_params params = { + .channel = le16_to_cpu(ctx->active.channel), + .start_time = cpu_to_le64(il->_3945.last_tsf), + .duration = cpu_to_le16(1), + }; + u8 type = IL_MEASURE_BASIC; + u8 buffer[32]; + u8 channel; + + if (count) { + char *p = buffer; + strncpy(buffer, buf, min(sizeof(buffer), count)); + channel = simple_strtoul(p, NULL, 0); + if (channel) + params.channel = channel; + + p = buffer; + while (*p && *p != ' ') + p++; + if (*p) + type = simple_strtoul(p + 1, NULL, 0); + } + + D_INFO("Invoking measurement of type %d on " "channel %d (for '%s')\n", + type, params.channel, buf); + il3945_get_measurement(il, ¶ms, type); + + return count; +} + +static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, il3945_show_measurement, + il3945_store_measurement); + +static ssize_t +il3945_store_retry_rate(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + + il->retry_rate = simple_strtoul(buf, NULL, 0); + if (il->retry_rate <= 0) + il->retry_rate = 1; + + return count; +} + +static ssize_t +il3945_show_retry_rate(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + return sprintf(buf, "%d", il->retry_rate); +} + +static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, il3945_show_retry_rate, + il3945_store_retry_rate); + +static ssize_t +il3945_show_channels(struct device *d, struct device_attribute *attr, char *buf) +{ + /* all this shit doesn't belong into sysfs anyway */ + return 0; +} + +static DEVICE_ATTR(channels, S_IRUSR, il3945_show_channels, NULL); + +static ssize_t +il3945_show_antenna(struct device *d, struct device_attribute *attr, char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + + if (!il_is_alive(il)) + return -EAGAIN; + + return sprintf(buf, "%d\n", il3945_mod_params.antenna); +} + +static ssize_t +il3945_store_antenna(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il __maybe_unused = dev_get_drvdata(d); + int ant; + + if (count == 0) + return 0; + + if (sscanf(buf, "%1i", &ant) != 1) { + D_INFO("not in hex or decimal form.\n"); + return count; + } + + if (ant >= 0 && ant <= 2) { + D_INFO("Setting antenna select to %d.\n", ant); + il3945_mod_params.antenna = (enum il3945_antenna)ant; + } else + D_INFO("Bad antenna select value %d.\n", ant); + + return count; +} + +static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, il3945_show_antenna, + il3945_store_antenna); + +static ssize_t +il3945_show_status(struct device *d, struct device_attribute *attr, char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + if (!il_is_alive(il)) + return -EAGAIN; + return sprintf(buf, "0x%08x\n", (int)il->status); +} + +static DEVICE_ATTR(status, S_IRUGO, il3945_show_status, NULL); + +static ssize_t +il3945_dump_error_log(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + char *p = (char *)buf; + + if (p[0] == '1') + il3945_dump_nic_error_log(il); + + return strnlen(buf, count); +} + +static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, il3945_dump_error_log); + +/***************************************************************************** + * + * driver setup and tear down + * + *****************************************************************************/ + +static void +il3945_setup_deferred_work(struct il_priv *il) +{ + il->workqueue = create_singlethread_workqueue(DRV_NAME); + + init_waitqueue_head(&il->wait_command_queue); + + INIT_WORK(&il->restart, il3945_bg_restart); + INIT_WORK(&il->rx_replenish, il3945_bg_rx_replenish); + INIT_DELAYED_WORK(&il->init_alive_start, il3945_bg_init_alive_start); + INIT_DELAYED_WORK(&il->alive_start, il3945_bg_alive_start); + INIT_DELAYED_WORK(&il->_3945.rfkill_poll, il3945_rfkill_poll); + + il_setup_scan_deferred_work(il); + + il3945_hw_setup_deferred_work(il); + + init_timer(&il->watchdog); + il->watchdog.data = (unsigned long)il; + il->watchdog.function = il_bg_watchdog; + + tasklet_init(&il->irq_tasklet, + (void (*)(unsigned long))il3945_irq_tasklet, + (unsigned long)il); +} + +static void +il3945_cancel_deferred_work(struct il_priv *il) +{ + il3945_hw_cancel_deferred_work(il); + + cancel_delayed_work_sync(&il->init_alive_start); + cancel_delayed_work(&il->alive_start); + + il_cancel_scan_deferred_work(il); +} + +static struct attribute *il3945_sysfs_entries[] = { + &dev_attr_antenna.attr, + &dev_attr_channels.attr, + &dev_attr_dump_errors.attr, + &dev_attr_flags.attr, + &dev_attr_filter_flags.attr, + &dev_attr_measurement.attr, + &dev_attr_retry_rate.attr, + &dev_attr_status.attr, + &dev_attr_temperature.attr, + &dev_attr_tx_power.attr, +#ifdef CONFIG_IWLEGACY_DEBUG + &dev_attr_debug_level.attr, +#endif + NULL +}; + +static struct attribute_group il3945_attribute_group = { + .name = NULL, /* put in device directory */ + .attrs = il3945_sysfs_entries, +}; + +struct ieee80211_ops il3945_hw_ops = { + .tx = il3945_mac_tx, + .start = il3945_mac_start, + .stop = il3945_mac_stop, + .add_interface = il_mac_add_interface, + .remove_interface = il_mac_remove_interface, + .change_interface = il_mac_change_interface, + .config = il_mac_config, + .configure_filter = il3945_configure_filter, + .set_key = il3945_mac_set_key, + .conf_tx = il_mac_conf_tx, + .reset_tsf = il_mac_reset_tsf, + .bss_info_changed = il_mac_bss_info_changed, + .hw_scan = il_mac_hw_scan, + .sta_add = il3945_mac_sta_add, + .sta_remove = il_mac_sta_remove, + .tx_last_beacon = il_mac_tx_last_beacon, +}; + +static int +il3945_init_drv(struct il_priv *il) +{ + int ret; + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + + il->retry_rate = 1; + il->beacon_skb = NULL; + + spin_lock_init(&il->sta_lock); + spin_lock_init(&il->hcmd_lock); + + INIT_LIST_HEAD(&il->free_frames); + + mutex_init(&il->mutex); + + il->ieee_channels = NULL; + il->ieee_rates = NULL; + il->band = IEEE80211_BAND_2GHZ; + + il->iw_mode = NL80211_IFTYPE_STATION; + il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF; + + /* initialize force reset */ + il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD; + + if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { + IL_WARN("Unsupported EEPROM version: 0x%04X\n", + eeprom->version); + ret = -EINVAL; + goto err; + } + ret = il_init_channel_map(il); + if (ret) { + IL_ERR("initializing regulatory failed: %d\n", ret); + goto err; + } + + /* Set up txpower settings in driver for all channels */ + if (il3945_txpower_set_from_eeprom(il)) { + ret = -EIO; + goto err_free_channel_map; + } + + ret = il_init_geos(il); + if (ret) { + IL_ERR("initializing geos failed: %d\n", ret); + goto err_free_channel_map; + } + il3945_init_hw_rates(il, il->ieee_rates); + + return 0; + +err_free_channel_map: + il_free_channel_map(il); +err: + return ret; +} + +#define IL3945_MAX_PROBE_REQUEST 200 + +static int +il3945_setup_mac(struct il_priv *il) +{ + int ret; + struct ieee80211_hw *hw = il->hw; + + hw->rate_control_algorithm = "iwl-3945-rs"; + hw->sta_data_size = sizeof(struct il3945_sta_priv); + hw->vif_data_size = sizeof(struct il_vif_priv); + + /* Tell mac80211 our characteristics */ + hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_SPECTRUM_MGMT; + + hw->wiphy->interface_modes = il->ctx.interface_modes; + + hw->wiphy->flags |= + WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS | + WIPHY_FLAG_IBSS_RSN; + + hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; + /* we create the 802.11 header and a zero-length SSID element */ + hw->wiphy->max_scan_ie_len = IL3945_MAX_PROBE_REQUEST - 24 - 2; + + /* Default value; 4 EDCA QOS priorities */ + hw->queues = 4; + + if (il->bands[IEEE80211_BAND_2GHZ].n_channels) + il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = + &il->bands[IEEE80211_BAND_2GHZ]; + + if (il->bands[IEEE80211_BAND_5GHZ].n_channels) + il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = + &il->bands[IEEE80211_BAND_5GHZ]; + + il_leds_init(il); + + ret = ieee80211_register_hw(il->hw); + if (ret) { + IL_ERR("Failed to register hw (error %d)\n", ret); + return ret; + } + il->mac80211_registered = 1; + + return 0; +} + +static int +il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + int err = 0; + struct il_priv *il; + struct ieee80211_hw *hw; + struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data); + struct il3945_eeprom *eeprom; + unsigned long flags; + + /*********************** + * 1. Allocating HW data + * ********************/ + + /* mac80211 allocates memory for this device instance, including + * space for this driver's ilate structure */ + hw = il_alloc_all(cfg); + if (hw == NULL) { + pr_err("Can not allocate network device\n"); + err = -ENOMEM; + goto out; + } + il = hw->priv; + SET_IEEE80211_DEV(hw, &pdev->dev); + + il->cmd_queue = IL39_CMD_QUEUE_NUM; + + il->ctx.ctxid = 0; + + il->ctx.rxon_cmd = C_RXON; + il->ctx.rxon_timing_cmd = C_RXON_TIMING; + il->ctx.rxon_assoc_cmd = C_RXON_ASSOC; + il->ctx.qos_cmd = C_QOS_PARAM; + il->ctx.ap_sta_id = IL_AP_ID; + il->ctx.wep_key_cmd = C_WEPKEY; + il->ctx.interface_modes = + BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); + il->ctx.ibss_devtype = RXON_DEV_TYPE_IBSS; + il->ctx.station_devtype = RXON_DEV_TYPE_ESS; + il->ctx.unused_devtype = RXON_DEV_TYPE_ESS; + + /* + * Disabling hardware scan means that mac80211 will perform scans + * "the hard way", rather than using device's scan. + */ + if (il3945_mod_params.disable_hw_scan) { + D_INFO("Disabling hw_scan\n"); + il3945_hw_ops.hw_scan = NULL; + } + + D_INFO("*** LOAD DRIVER ***\n"); + il->cfg = cfg; + il->pci_dev = pdev; + il->inta_mask = CSR_INI_SET_MASK; + + if (il_alloc_traffic_mem(il)) + IL_ERR("Not enough memory to generate traffic log\n"); + + /*************************** + * 2. Initializing PCI bus + * *************************/ + pci_disable_link_state(pdev, + PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | + PCIE_LINK_STATE_CLKPM); + + if (pci_enable_device(pdev)) { + err = -ENODEV; + goto out_ieee80211_free_hw; + } + + pci_set_master(pdev); + + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (!err) + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + IL_WARN("No suitable DMA available.\n"); + goto out_pci_disable_device; + } + + pci_set_drvdata(pdev, il); + err = pci_request_regions(pdev, DRV_NAME); + if (err) + goto out_pci_disable_device; + + /*********************** + * 3. Read REV Register + * ********************/ + il->hw_base = pci_iomap(pdev, 0, 0); + if (!il->hw_base) { + err = -ENODEV; + goto out_pci_release_regions; + } + + D_INFO("pci_resource_len = 0x%08llx\n", + (unsigned long long)pci_resource_len(pdev, 0)); + D_INFO("pci_resource_base = %p\n", il->hw_base); + + /* We disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state */ + pci_write_config_byte(pdev, 0x41, 0x00); + + /* these spin locks will be used in apm_ops.init and EEPROM access + * we should init now + */ + spin_lock_init(&il->reg_lock); + spin_lock_init(&il->lock); + + /* + * stop and reset the on-board processor just in case it is in a + * strange state ... like being left stranded by a primary kernel + * and this is now the kdump kernel trying to start up + */ + _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); + + /*********************** + * 4. Read EEPROM + * ********************/ + + /* Read the EEPROM */ + err = il_eeprom_init(il); + if (err) { + IL_ERR("Unable to init EEPROM\n"); + goto out_iounmap; + } + /* MAC Address location in EEPROM same for 3945/4965 */ + eeprom = (struct il3945_eeprom *)il->eeprom; + D_INFO("MAC address: %pM\n", eeprom->mac_address); + SET_IEEE80211_PERM_ADDR(il->hw, eeprom->mac_address); + + /*********************** + * 5. Setup HW Constants + * ********************/ + /* Device-specific setup */ + if (il3945_hw_set_hw_params(il)) { + IL_ERR("failed to set hw settings\n"); + goto out_eeprom_free; + } + + /*********************** + * 6. Setup il + * ********************/ + + err = il3945_init_drv(il); + if (err) { + IL_ERR("initializing driver failed\n"); + goto out_unset_hw_params; + } + + IL_INFO("Detected Intel Wireless WiFi Link %s\n", il->cfg->name); + + /*********************** + * 7. Setup Services + * ********************/ + + spin_lock_irqsave(&il->lock, flags); + il_disable_interrupts(il); + spin_unlock_irqrestore(&il->lock, flags); + + pci_enable_msi(il->pci_dev); + + err = request_irq(il->pci_dev->irq, il_isr, IRQF_SHARED, DRV_NAME, il); + if (err) { + IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq); + goto out_disable_msi; + } + + err = sysfs_create_group(&pdev->dev.kobj, &il3945_attribute_group); + if (err) { + IL_ERR("failed to create sysfs device attributes\n"); + goto out_release_irq; + } + + il_set_rxon_channel(il, &il->bands[IEEE80211_BAND_2GHZ].channels[5], + &il->ctx); + il3945_setup_deferred_work(il); + il3945_setup_handlers(il); + il_power_initialize(il); + + /********************************* + * 8. Setup and Register mac80211 + * *******************************/ + + il_enable_interrupts(il); + + err = il3945_setup_mac(il); + if (err) + goto out_remove_sysfs; + + err = il_dbgfs_register(il, DRV_NAME); + if (err) + IL_ERR("failed to create debugfs files. Ignoring error: %d\n", + err); + + /* Start monitoring the killswitch */ + queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, 2 * HZ); + + return 0; + +out_remove_sysfs: + destroy_workqueue(il->workqueue); + il->workqueue = NULL; + sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); +out_release_irq: + free_irq(il->pci_dev->irq, il); +out_disable_msi: + pci_disable_msi(il->pci_dev); + il_free_geos(il); + il_free_channel_map(il); +out_unset_hw_params: + il3945_unset_hw_params(il); +out_eeprom_free: + il_eeprom_free(il); +out_iounmap: + pci_iounmap(pdev, il->hw_base); +out_pci_release_regions: + pci_release_regions(pdev); +out_pci_disable_device: + pci_set_drvdata(pdev, NULL); + pci_disable_device(pdev); +out_ieee80211_free_hw: + il_free_traffic_mem(il); + ieee80211_free_hw(il->hw); +out: + return err; +} + +static void __devexit +il3945_pci_remove(struct pci_dev *pdev) +{ + struct il_priv *il = pci_get_drvdata(pdev); + unsigned long flags; + + if (!il) + return; + + D_INFO("*** UNLOAD DRIVER ***\n"); + + il_dbgfs_unregister(il); + + set_bit(S_EXIT_PENDING, &il->status); + + il_leds_exit(il); + + if (il->mac80211_registered) { + ieee80211_unregister_hw(il->hw); + il->mac80211_registered = 0; + } else { + il3945_down(il); + } + + /* + * Make sure device is reset to low power before unloading driver. + * This may be redundant with il_down(), but there are paths to + * run il_down() without calling apm_ops.stop(), and there are + * paths to avoid running il_down() at all before leaving driver. + * This (inexpensive) call *makes sure* device is reset. + */ + il_apm_stop(il); + + /* make sure we flush any pending irq or + * tasklet for the driver + */ + spin_lock_irqsave(&il->lock, flags); + il_disable_interrupts(il); + spin_unlock_irqrestore(&il->lock, flags); + + il3945_synchronize_irq(il); + + sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); + + cancel_delayed_work_sync(&il->_3945.rfkill_poll); + + il3945_dealloc_ucode_pci(il); + + if (il->rxq.bd) + il3945_rx_queue_free(il, &il->rxq); + il3945_hw_txq_ctx_free(il); + + il3945_unset_hw_params(il); + + /*netif_stop_queue(dev); */ + flush_workqueue(il->workqueue); + + /* ieee80211_unregister_hw calls il3945_mac_stop, which flushes + * il->workqueue... so we can't take down the workqueue + * until now... */ + destroy_workqueue(il->workqueue); + il->workqueue = NULL; + il_free_traffic_mem(il); + + free_irq(pdev->irq, il); + pci_disable_msi(pdev); + + pci_iounmap(pdev, il->hw_base); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + + il_free_channel_map(il); + il_free_geos(il); + kfree(il->scan_cmd); + if (il->beacon_skb) + dev_kfree_skb(il->beacon_skb); + + ieee80211_free_hw(il->hw); +} + +/***************************************************************************** + * + * driver and module entry point + * + *****************************************************************************/ + +static struct pci_driver il3945_driver = { + .name = DRV_NAME, + .id_table = il3945_hw_card_ids, + .probe = il3945_pci_probe, + .remove = __devexit_p(il3945_pci_remove), + .driver.pm = IL_LEGACY_PM_OPS, +}; + +static int __init +il3945_init(void) +{ + + int ret; + pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); + pr_info(DRV_COPYRIGHT "\n"); + + ret = il3945_rate_control_register(); + if (ret) { + pr_err("Unable to register rate control algorithm: %d\n", ret); + return ret; + } + + ret = pci_register_driver(&il3945_driver); + if (ret) { + pr_err("Unable to initialize PCI module\n"); + goto error_register; + } + + return ret; + +error_register: + il3945_rate_control_unregister(); + return ret; +} + +static void __exit +il3945_exit(void) +{ + pci_unregister_driver(&il3945_driver); + il3945_rate_control_unregister(); +} + +MODULE_FIRMWARE(IL3945_MODULE_FIRMWARE(IL3945_UCODE_API_MAX)); + +module_param_named(antenna, il3945_mod_params.antenna, int, S_IRUGO); +MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); +module_param_named(swcrypto, il3945_mod_params.sw_crypto, int, S_IRUGO); +MODULE_PARM_DESC(swcrypto, "using software crypto (default 1 [software])"); +module_param_named(disable_hw_scan, il3945_mod_params.disable_hw_scan, int, + S_IRUGO); +MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)"); +#ifdef CONFIG_IWLEGACY_DEBUG +module_param_named(debug, il_debug_level, uint, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "debug output mask"); +#endif +module_param_named(fw_restart, il3945_mod_params.restart_fw, int, S_IRUGO); +MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); + +module_exit(il3945_exit); +module_init(il3945_init); diff --git a/drivers/net/wireless/iwlegacy/3945-rs.c b/drivers/net/wireless/iwlegacy/3945-rs.c new file mode 100644 index 000000000000..30ad404f8df7 --- /dev/null +++ b/drivers/net/wireless/iwlegacy/3945-rs.c @@ -0,0 +1,995 @@ +/****************************************************************************** + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/skbuff.h> +#include <linux/slab.h> +#include <net/mac80211.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/delay.h> + +#include <linux/workqueue.h> + +#include "commands.h" +#include "3945.h" + +#define RS_NAME "iwl-3945-rs" + +static s32 il3945_expected_tpt_g[RATE_COUNT_3945] = { + 7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202 +}; + +static s32 il3945_expected_tpt_g_prot[RATE_COUNT_3945] = { + 7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125 +}; + +static s32 il3945_expected_tpt_a[RATE_COUNT_3945] = { + 0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186 +}; + +static s32 il3945_expected_tpt_b[RATE_COUNT_3945] = { + 7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +struct il3945_tpt_entry { + s8 min_rssi; + u8 idx; +}; + +static struct il3945_tpt_entry il3945_tpt_table_a[] = { + {-60, RATE_54M_IDX}, + {-64, RATE_48M_IDX}, + {-72, RATE_36M_IDX}, + {-80, RATE_24M_IDX}, + {-84, RATE_18M_IDX}, + {-85, RATE_12M_IDX}, + {-87, RATE_9M_IDX}, + {-89, RATE_6M_IDX} +}; + +static struct il3945_tpt_entry il3945_tpt_table_g[] = { + {-60, RATE_54M_IDX}, + {-64, RATE_48M_IDX}, + {-68, RATE_36M_IDX}, + {-80, RATE_24M_IDX}, + {-84, RATE_18M_IDX}, + {-85, RATE_12M_IDX}, + {-86, RATE_11M_IDX}, + {-88, RATE_5M_IDX}, + {-90, RATE_2M_IDX}, + {-92, RATE_1M_IDX} +}; + +#define RATE_MAX_WINDOW 62 +#define RATE_FLUSH (3*HZ) +#define RATE_WIN_FLUSH (HZ/2) +#define IL39_RATE_HIGH_TH 11520 +#define IL_SUCCESS_UP_TH 8960 +#define IL_SUCCESS_DOWN_TH 10880 +#define RATE_MIN_FAILURE_TH 6 +#define RATE_MIN_SUCCESS_TH 8 +#define RATE_DECREASE_TH 1920 +#define RATE_RETRY_TH 15 + +static u8 +il3945_get_rate_idx_by_rssi(s32 rssi, enum ieee80211_band band) +{ + u32 idx = 0; + u32 table_size = 0; + struct il3945_tpt_entry *tpt_table = NULL; + + if (rssi < IL_MIN_RSSI_VAL || rssi > IL_MAX_RSSI_VAL) + rssi = IL_MIN_RSSI_VAL; + + switch (band) { + case IEEE80211_BAND_2GHZ: + tpt_table = il3945_tpt_table_g; + table_size = ARRAY_SIZE(il3945_tpt_table_g); + break; + + case IEEE80211_BAND_5GHZ: + tpt_table = il3945_tpt_table_a; + table_size = ARRAY_SIZE(il3945_tpt_table_a); + break; + + default: + BUG(); + break; + } + + while (idx < table_size && rssi < tpt_table[idx].min_rssi) + idx++; + + idx = min(idx, (table_size - 1)); + + return tpt_table[idx].idx; +} + +static void +il3945_clear_win(struct il3945_rate_scale_data *win) +{ + win->data = 0; + win->success_counter = 0; + win->success_ratio = -1; + win->counter = 0; + win->average_tpt = IL_INVALID_VALUE; + win->stamp = 0; +} + +/** + * il3945_rate_scale_flush_wins - flush out the rate scale wins + * + * Returns the number of wins that have gathered data but were + * not flushed. If there were any that were not flushed, then + * reschedule the rate flushing routine. + */ +static int +il3945_rate_scale_flush_wins(struct il3945_rs_sta *rs_sta) +{ + int unflushed = 0; + int i; + unsigned long flags; + struct il_priv *il __maybe_unused = rs_sta->il; + + /* + * For each rate, if we have collected data on that rate + * and it has been more than RATE_WIN_FLUSH + * since we flushed, clear out the gathered stats + */ + for (i = 0; i < RATE_COUNT_3945; i++) { + if (!rs_sta->win[i].counter) + continue; + + spin_lock_irqsave(&rs_sta->lock, flags); + if (time_after(jiffies, rs_sta->win[i].stamp + RATE_WIN_FLUSH)) { + D_RATE("flushing %d samples of rate " "idx %d\n", + rs_sta->win[i].counter, i); + il3945_clear_win(&rs_sta->win[i]); + } else + unflushed++; + spin_unlock_irqrestore(&rs_sta->lock, flags); + } + + return unflushed; +} + +#define RATE_FLUSH_MAX 5000 /* msec */ +#define RATE_FLUSH_MIN 50 /* msec */ +#define IL_AVERAGE_PACKETS 1500 + +static void +il3945_bg_rate_scale_flush(unsigned long data) +{ + struct il3945_rs_sta *rs_sta = (void *)data; + struct il_priv *il __maybe_unused = rs_sta->il; + int unflushed = 0; + unsigned long flags; + u32 packet_count, duration, pps; + + D_RATE("enter\n"); + + unflushed = il3945_rate_scale_flush_wins(rs_sta); + + spin_lock_irqsave(&rs_sta->lock, flags); + + /* Number of packets Rx'd since last time this timer ran */ + packet_count = (rs_sta->tx_packets - rs_sta->last_tx_packets) + 1; + + rs_sta->last_tx_packets = rs_sta->tx_packets + 1; + + if (unflushed) { + duration = + jiffies_to_msecs(jiffies - rs_sta->last_partial_flush); + + D_RATE("Tx'd %d packets in %dms\n", packet_count, duration); + + /* Determine packets per second */ + if (duration) + pps = (packet_count * 1000) / duration; + else + pps = 0; + + if (pps) { + duration = (IL_AVERAGE_PACKETS * 1000) / pps; + if (duration < RATE_FLUSH_MIN) + duration = RATE_FLUSH_MIN; + else if (duration > RATE_FLUSH_MAX) + duration = RATE_FLUSH_MAX; + } else + duration = RATE_FLUSH_MAX; + + rs_sta->flush_time = msecs_to_jiffies(duration); + + D_RATE("new flush period: %d msec ave %d\n", duration, + packet_count); + + mod_timer(&rs_sta->rate_scale_flush, + jiffies + rs_sta->flush_time); + + rs_sta->last_partial_flush = jiffies; + } else { + rs_sta->flush_time = RATE_FLUSH; + rs_sta->flush_pending = 0; + } + /* If there weren't any unflushed entries, we don't schedule the timer + * to run again */ + + rs_sta->last_flush = jiffies; + + spin_unlock_irqrestore(&rs_sta->lock, flags); + + D_RATE("leave\n"); +} + +/** + * il3945_collect_tx_data - Update the success/failure sliding win + * + * We keep a sliding win of the last 64 packets transmitted + * at this rate. win->data contains the bitmask of successful + * packets. + */ +static void +il3945_collect_tx_data(struct il3945_rs_sta *rs_sta, + struct il3945_rate_scale_data *win, int success, + int retries, int idx) +{ + unsigned long flags; + s32 fail_count; + struct il_priv *il __maybe_unused = rs_sta->il; + + if (!retries) { + D_RATE("leave: retries == 0 -- should be at least 1\n"); + return; + } + + spin_lock_irqsave(&rs_sta->lock, flags); + + /* + * Keep track of only the latest 62 tx frame attempts in this rate's + * history win; anything older isn't really relevant any more. + * If we have filled up the sliding win, drop the oldest attempt; + * if the oldest attempt (highest bit in bitmap) shows "success", + * subtract "1" from the success counter (this is the main reason + * we keep these bitmaps!). + * */ + while (retries > 0) { + if (win->counter >= RATE_MAX_WINDOW) { + + /* remove earliest */ + win->counter = RATE_MAX_WINDOW - 1; + + if (win->data & (1ULL << (RATE_MAX_WINDOW - 1))) { + win->data &= ~(1ULL << (RATE_MAX_WINDOW - 1)); + win->success_counter--; + } + } + + /* Increment frames-attempted counter */ + win->counter++; + + /* Shift bitmap by one frame (throw away oldest history), + * OR in "1", and increment "success" if this + * frame was successful. */ + win->data <<= 1; + if (success > 0) { + win->success_counter++; + win->data |= 0x1; + success--; + } + + retries--; + } + + /* Calculate current success ratio, avoid divide-by-0! */ + if (win->counter > 0) + win->success_ratio = + 128 * (100 * win->success_counter) / win->counter; + else + win->success_ratio = IL_INVALID_VALUE; + + fail_count = win->counter - win->success_counter; + + /* Calculate average throughput, if we have enough history. */ + if (fail_count >= RATE_MIN_FAILURE_TH || + win->success_counter >= RATE_MIN_SUCCESS_TH) + win->average_tpt = + ((win->success_ratio * rs_sta->expected_tpt[idx] + + 64) / 128); + else + win->average_tpt = IL_INVALID_VALUE; + + /* Tag this win as having been updated */ + win->stamp = jiffies; + + spin_unlock_irqrestore(&rs_sta->lock, flags); + +} + +/* + * Called after adding a new station to initialize rate scaling + */ +void +il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta, u8 sta_id) +{ + struct ieee80211_hw *hw = il->hw; + struct ieee80211_conf *conf = &il->hw->conf; + struct il3945_sta_priv *psta; + struct il3945_rs_sta *rs_sta; + struct ieee80211_supported_band *sband; + int i; + + D_INFO("enter\n"); + if (sta_id == il->ctx.bcast_sta_id) + goto out; + + psta = (struct il3945_sta_priv *)sta->drv_priv; + rs_sta = &psta->rs_sta; + sband = hw->wiphy->bands[conf->channel->band]; + + rs_sta->il = il; + + rs_sta->start_rate = RATE_INVALID; + + /* default to just 802.11b */ + rs_sta->expected_tpt = il3945_expected_tpt_b; + + rs_sta->last_partial_flush = jiffies; + rs_sta->last_flush = jiffies; + rs_sta->flush_time = RATE_FLUSH; + rs_sta->last_tx_packets = 0; + + rs_sta->rate_scale_flush.data = (unsigned long)rs_sta; + rs_sta->rate_scale_flush.function = il3945_bg_rate_scale_flush; + + for (i = 0; i < RATE_COUNT_3945; i++) + il3945_clear_win(&rs_sta->win[i]); + + /* TODO: what is a good starting rate for STA? About middle? Maybe not + * the lowest or the highest rate.. Could consider using RSSI from + * previous packets? Need to have IEEE 802.1X auth succeed immediately + * after assoc.. */ + + for (i = sband->n_bitrates - 1; i >= 0; i--) { + if (sta->supp_rates[sband->band] & (1 << i)) { + rs_sta->last_txrate_idx = i; + break; + } + } + + il->_3945.sta_supp_rates = sta->supp_rates[sband->band]; + /* For 5 GHz band it start at IL_FIRST_OFDM_RATE */ + if (sband->band == IEEE80211_BAND_5GHZ) { + rs_sta->last_txrate_idx += IL_FIRST_OFDM_RATE; + il->_3945.sta_supp_rates = + il->_3945.sta_supp_rates << IL_FIRST_OFDM_RATE; + } + +out: + il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS; + + D_INFO("leave\n"); +} + +static void * +il3945_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) +{ + return hw->priv; +} + +/* rate scale requires free function to be implemented */ +static void +il3945_rs_free(void *il) +{ + return; +} + +static void * +il3945_rs_alloc_sta(void *il_priv, struct ieee80211_sta *sta, gfp_t gfp) +{ + struct il3945_rs_sta *rs_sta; + struct il3945_sta_priv *psta = (void *)sta->drv_priv; + struct il_priv *il __maybe_unused = il_priv; + + D_RATE("enter\n"); + + rs_sta = &psta->rs_sta; + + spin_lock_init(&rs_sta->lock); + init_timer(&rs_sta->rate_scale_flush); + + D_RATE("leave\n"); + + return rs_sta; +} + +static void +il3945_rs_free_sta(void *il_priv, struct ieee80211_sta *sta, void *il_sta) +{ + struct il3945_rs_sta *rs_sta = il_sta; + + /* + * Be careful not to use any members of il3945_rs_sta (like trying + * to use il_priv to print out debugging) since it may not be fully + * initialized at this point. + */ + del_timer_sync(&rs_sta->rate_scale_flush); +} + +/** + * il3945_rs_tx_status - Update rate control values based on Tx results + * + * NOTE: Uses il_priv->retry_rate for the # of retries attempted by + * the hardware for each rate. + */ +static void +il3945_rs_tx_status(void *il_rate, struct ieee80211_supported_band *sband, + struct ieee80211_sta *sta, void *il_sta, + struct sk_buff *skb) +{ + s8 retries = 0, current_count; + int scale_rate_idx, first_idx, last_idx; + unsigned long flags; + struct il_priv *il = (struct il_priv *)il_rate; + struct il3945_rs_sta *rs_sta = il_sta; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + + D_RATE("enter\n"); + + retries = info->status.rates[0].count; + /* Sanity Check for retries */ + if (retries > RATE_RETRY_TH) + retries = RATE_RETRY_TH; + + first_idx = sband->bitrates[info->status.rates[0].idx].hw_value; + if (first_idx < 0 || first_idx >= RATE_COUNT_3945) { + D_RATE("leave: Rate out of bounds: %d\n", first_idx); + return; + } + + if (!il_sta) { + D_RATE("leave: No STA il data to update!\n"); + return; + } + + /* Treat uninitialized rate scaling data same as non-existing. */ + if (!rs_sta->il) { + D_RATE("leave: STA il data uninitialized!\n"); + return; + } + + rs_sta->tx_packets++; + + scale_rate_idx = first_idx; + last_idx = first_idx; + + /* + * Update the win for each rate. We determine which rates + * were Tx'd based on the total number of retries vs. the number + * of retries configured for each rate -- currently set to the + * il value 'retry_rate' vs. rate specific + * + * On exit from this while loop last_idx indicates the rate + * at which the frame was finally transmitted (or failed if no + * ACK) + */ + while (retries > 1) { + if ((retries - 1) < il->retry_rate) { + current_count = (retries - 1); + last_idx = scale_rate_idx; + } else { + current_count = il->retry_rate; + last_idx = il3945_rs_next_rate(il, scale_rate_idx); + } + + /* Update this rate accounting for as many retries + * as was used for it (per current_count) */ + il3945_collect_tx_data(rs_sta, &rs_sta->win[scale_rate_idx], 0, + current_count, scale_rate_idx); + D_RATE("Update rate %d for %d retries.\n", scale_rate_idx, + current_count); + + retries -= current_count; + + scale_rate_idx = last_idx; + } + + /* Update the last idx win with success/failure based on ACK */ + D_RATE("Update rate %d with %s.\n", last_idx, + (info->flags & IEEE80211_TX_STAT_ACK) ? "success" : "failure"); + il3945_collect_tx_data(rs_sta, &rs_sta->win[last_idx], + info->flags & IEEE80211_TX_STAT_ACK, 1, + last_idx); + + /* We updated the rate scale win -- if its been more than + * flush_time since the last run, schedule the flush + * again */ + spin_lock_irqsave(&rs_sta->lock, flags); + + if (!rs_sta->flush_pending && + time_after(jiffies, rs_sta->last_flush + rs_sta->flush_time)) { + + rs_sta->last_partial_flush = jiffies; + rs_sta->flush_pending = 1; + mod_timer(&rs_sta->rate_scale_flush, + jiffies + rs_sta->flush_time); + } + + spin_unlock_irqrestore(&rs_sta->lock, flags); + + D_RATE("leave\n"); +} + +static u16 +il3945_get_adjacent_rate(struct il3945_rs_sta *rs_sta, u8 idx, u16 rate_mask, + enum ieee80211_band band) +{ + u8 high = RATE_INVALID; + u8 low = RATE_INVALID; + struct il_priv *il __maybe_unused = rs_sta->il; + + /* 802.11A walks to the next literal adjacent rate in + * the rate table */ + if (unlikely(band == IEEE80211_BAND_5GHZ)) { + int i; + u32 mask; + + /* Find the previous rate that is in the rate mask */ + i = idx - 1; + for (mask = (1 << i); i >= 0; i--, mask >>= 1) { + if (rate_mask & mask) { + low = i; + break; + } + } + + /* Find the next rate that is in the rate mask */ + i = idx + 1; + for (mask = (1 << i); i < RATE_COUNT_3945; i++, mask <<= 1) { + if (rate_mask & mask) { + high = i; + break; + } + } + + return (high << 8) | low; + } + + low = idx; + while (low != RATE_INVALID) { + if (rs_sta->tgg) + low = il3945_rates[low].prev_rs_tgg; + else + low = il3945_rates[low].prev_rs; + if (low == RATE_INVALID) + break; + if (rate_mask & (1 << low)) + break; + D_RATE("Skipping masked lower rate: %d\n", low); + } + + high = idx; + while (high != RATE_INVALID) { + if (rs_sta->tgg) + high = il3945_rates[high].next_rs_tgg; + else + high = il3945_rates[high].next_rs; + if (high == RATE_INVALID) + break; + if (rate_mask & (1 << high)) + break; + D_RATE("Skipping masked higher rate: %d\n", high); + } + + return (high << 8) | low; +} + +/** + * il3945_rs_get_rate - find the rate for the requested packet + * + * Returns the ieee80211_rate structure allocated by the driver. + * + * The rate control algorithm has no internal mapping between hw_mode's + * rate ordering and the rate ordering used by the rate control algorithm. + * + * The rate control algorithm uses a single table of rates that goes across + * the entire A/B/G spectrum vs. being limited to just one particular + * hw_mode. + * + * As such, we can't convert the idx obtained below into the hw_mode's + * rate table and must reference the driver allocated rate table + * + */ +static void +il3945_rs_get_rate(void *il_r, struct ieee80211_sta *sta, void *il_sta, + struct ieee80211_tx_rate_control *txrc) +{ + struct ieee80211_supported_band *sband = txrc->sband; + struct sk_buff *skb = txrc->skb; + u8 low = RATE_INVALID; + u8 high = RATE_INVALID; + u16 high_low; + int idx; + struct il3945_rs_sta *rs_sta = il_sta; + struct il3945_rate_scale_data *win = NULL; + int current_tpt = IL_INVALID_VALUE; + int low_tpt = IL_INVALID_VALUE; + int high_tpt = IL_INVALID_VALUE; + u32 fail_count; + s8 scale_action = 0; + unsigned long flags; + u16 rate_mask; + s8 max_rate_idx = -1; + struct il_priv *il __maybe_unused = (struct il_priv *)il_r; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + + D_RATE("enter\n"); + + /* Treat uninitialized rate scaling data same as non-existing. */ + if (rs_sta && !rs_sta->il) { + D_RATE("Rate scaling information not initialized yet.\n"); + il_sta = NULL; + } + + if (rate_control_send_low(sta, il_sta, txrc)) + return; + + rate_mask = sta->supp_rates[sband->band]; + + /* get user max rate if set */ + max_rate_idx = txrc->max_rate_idx; + if (sband->band == IEEE80211_BAND_5GHZ && max_rate_idx != -1) + max_rate_idx += IL_FIRST_OFDM_RATE; + if (max_rate_idx < 0 || max_rate_idx >= RATE_COUNT) + max_rate_idx = -1; + + idx = min(rs_sta->last_txrate_idx & 0xffff, RATE_COUNT_3945 - 1); + + if (sband->band == IEEE80211_BAND_5GHZ) + rate_mask = rate_mask << IL_FIRST_OFDM_RATE; + + spin_lock_irqsave(&rs_sta->lock, flags); + + /* for recent assoc, choose best rate regarding + * to rssi value + */ + if (rs_sta->start_rate != RATE_INVALID) { + if (rs_sta->start_rate < idx && + (rate_mask & (1 << rs_sta->start_rate))) + idx = rs_sta->start_rate; + rs_sta->start_rate = RATE_INVALID; + } + + /* force user max rate if set by user */ + if (max_rate_idx != -1 && max_rate_idx < idx) { + if (rate_mask & (1 << max_rate_idx)) + idx = max_rate_idx; + } + + win = &(rs_sta->win[idx]); + + fail_count = win->counter - win->success_counter; + + if (fail_count < RATE_MIN_FAILURE_TH && + win->success_counter < RATE_MIN_SUCCESS_TH) { + spin_unlock_irqrestore(&rs_sta->lock, flags); + + D_RATE("Invalid average_tpt on rate %d: " + "counter: %d, success_counter: %d, " + "expected_tpt is %sNULL\n", idx, win->counter, + win->success_counter, + rs_sta->expected_tpt ? "not " : ""); + + /* Can't calculate this yet; not enough history */ + win->average_tpt = IL_INVALID_VALUE; + goto out; + + } + + current_tpt = win->average_tpt; + + high_low = + il3945_get_adjacent_rate(rs_sta, idx, rate_mask, sband->band); + low = high_low & 0xff; + high = (high_low >> 8) & 0xff; + + /* If user set max rate, dont allow higher than user constrain */ + if (max_rate_idx != -1 && max_rate_idx < high) + high = RATE_INVALID; + + /* Collect Measured throughputs of adjacent rates */ + if (low != RATE_INVALID) + low_tpt = rs_sta->win[low].average_tpt; + + if (high != RATE_INVALID) + high_tpt = rs_sta->win[high].average_tpt; + + spin_unlock_irqrestore(&rs_sta->lock, flags); + + scale_action = 0; + + /* Low success ratio , need to drop the rate */ + if (win->success_ratio < RATE_DECREASE_TH || !current_tpt) { + D_RATE("decrease rate because of low success_ratio\n"); + scale_action = -1; + /* No throughput measured yet for adjacent rates, + * try increase */ + } else if (low_tpt == IL_INVALID_VALUE && high_tpt == IL_INVALID_VALUE) { + + if (high != RATE_INVALID && + win->success_ratio >= RATE_INCREASE_TH) + scale_action = 1; + else if (low != RATE_INVALID) + scale_action = 0; + + /* Both adjacent throughputs are measured, but neither one has + * better throughput; we're using the best rate, don't change + * it! */ + } else if (low_tpt != IL_INVALID_VALUE && high_tpt != IL_INVALID_VALUE + && low_tpt < current_tpt && high_tpt < current_tpt) { + + D_RATE("No action -- low [%d] & high [%d] < " + "current_tpt [%d]\n", low_tpt, high_tpt, current_tpt); + scale_action = 0; + + /* At least one of the rates has better throughput */ + } else { + if (high_tpt != IL_INVALID_VALUE) { + + /* High rate has better throughput, Increase + * rate */ + if (high_tpt > current_tpt && + win->success_ratio >= RATE_INCREASE_TH) + scale_action = 1; + else { + D_RATE("decrease rate because of high tpt\n"); + scale_action = 0; + } + } else if (low_tpt != IL_INVALID_VALUE) { + if (low_tpt > current_tpt) { + D_RATE("decrease rate because of low tpt\n"); + scale_action = -1; + } else if (win->success_ratio >= RATE_INCREASE_TH) { + /* Lower rate has better + * throughput,decrease rate */ + scale_action = 1; + } + } + } + + /* Sanity check; asked for decrease, but success rate or throughput + * has been good at old rate. Don't change it. */ + if (scale_action == -1 && low != RATE_INVALID && + (win->success_ratio > RATE_HIGH_TH || + current_tpt > 100 * rs_sta->expected_tpt[low])) + scale_action = 0; + + switch (scale_action) { + case -1: + + /* Decrese rate */ + if (low != RATE_INVALID) + idx = low; + break; + + case 1: + /* Increase rate */ + if (high != RATE_INVALID) + idx = high; + + break; + + case 0: + default: + /* No change */ + break; + } + + D_RATE("Selected %d (action %d) - low %d high %d\n", idx, scale_action, + low, high); + +out: + + if (sband->band == IEEE80211_BAND_5GHZ) { + if (WARN_ON_ONCE(idx < IL_FIRST_OFDM_RATE)) + idx = IL_FIRST_OFDM_RATE; + rs_sta->last_txrate_idx = idx; + info->control.rates[0].idx = idx - IL_FIRST_OFDM_RATE; + } else { + rs_sta->last_txrate_idx = idx; + info->control.rates[0].idx = rs_sta->last_txrate_idx; + } + + D_RATE("leave: %d\n", idx); +} + +#ifdef CONFIG_MAC80211_DEBUGFS +static int +il3945_open_file_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static ssize_t +il3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + char *buff; + int desc = 0; + int j; + ssize_t ret; + struct il3945_rs_sta *lq_sta = file->private_data; + + buff = kmalloc(1024, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + desc += + sprintf(buff + desc, + "tx packets=%d last rate idx=%d\n" + "rate=0x%X flush time %d\n", lq_sta->tx_packets, + lq_sta->last_txrate_idx, lq_sta->start_rate, + jiffies_to_msecs(lq_sta->flush_time)); + for (j = 0; j < RATE_COUNT_3945; j++) { + desc += + sprintf(buff + desc, "counter=%d success=%d %%=%d\n", + lq_sta->win[j].counter, + lq_sta->win[j].success_counter, + lq_sta->win[j].success_ratio); + } + ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); + kfree(buff); + return ret; +} + +static const struct file_operations rs_sta_dbgfs_stats_table_ops = { + .read = il3945_sta_dbgfs_stats_table_read, + .open = il3945_open_file_generic, + .llseek = default_llseek, +}; + +static void +il3945_add_debugfs(void *il, void *il_sta, struct dentry *dir) +{ + struct il3945_rs_sta *lq_sta = il_sta; + + lq_sta->rs_sta_dbgfs_stats_table_file = + debugfs_create_file("rate_stats_table", 0600, dir, lq_sta, + &rs_sta_dbgfs_stats_table_ops); + +} + +static void +il3945_remove_debugfs(void *il, void *il_sta) +{ + struct il3945_rs_sta *lq_sta = il_sta; + debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); +} +#endif + +/* + * Initialization of rate scaling information is done by driver after + * the station is added. Since mac80211 calls this function before a + * station is added we ignore it. + */ +static void +il3945_rs_rate_init_stub(void *il_r, struct ieee80211_supported_band *sband, + struct ieee80211_sta *sta, void *il_sta) +{ +} + +static struct rate_control_ops rs_ops = { + .module = NULL, + .name = RS_NAME, + .tx_status = il3945_rs_tx_status, + .get_rate = il3945_rs_get_rate, + .rate_init = il3945_rs_rate_init_stub, + .alloc = il3945_rs_alloc, + .free = il3945_rs_free, + .alloc_sta = il3945_rs_alloc_sta, + .free_sta = il3945_rs_free_sta, +#ifdef CONFIG_MAC80211_DEBUGFS + .add_sta_debugfs = il3945_add_debugfs, + .remove_sta_debugfs = il3945_remove_debugfs, +#endif + +}; + +void +il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) +{ + struct il_priv *il = hw->priv; + s32 rssi = 0; + unsigned long flags; + struct il3945_rs_sta *rs_sta; + struct ieee80211_sta *sta; + struct il3945_sta_priv *psta; + + D_RATE("enter\n"); + + rcu_read_lock(); + + sta = + ieee80211_find_sta(il->ctx.vif, il->stations[sta_id].sta.sta.addr); + if (!sta) { + D_RATE("Unable to find station to initialize rate scaling.\n"); + rcu_read_unlock(); + return; + } + + psta = (void *)sta->drv_priv; + rs_sta = &psta->rs_sta; + + spin_lock_irqsave(&rs_sta->lock, flags); + + rs_sta->tgg = 0; + switch (il->band) { + case IEEE80211_BAND_2GHZ: + /* TODO: this always does G, not a regression */ + if (il->ctx.active.flags & RXON_FLG_TGG_PROTECT_MSK) { + rs_sta->tgg = 1; + rs_sta->expected_tpt = il3945_expected_tpt_g_prot; + } else + rs_sta->expected_tpt = il3945_expected_tpt_g; + break; + + case IEEE80211_BAND_5GHZ: + rs_sta->expected_tpt = il3945_expected_tpt_a; + break; + case IEEE80211_NUM_BANDS: + BUG(); + break; + } + + spin_unlock_irqrestore(&rs_sta->lock, flags); + + rssi = il->_3945.last_rx_rssi; + if (rssi == 0) + rssi = IL_MIN_RSSI_VAL; + + D_RATE("Network RSSI: %d\n", rssi); + + rs_sta->start_rate = il3945_get_rate_idx_by_rssi(rssi, il->band); + + D_RATE("leave: rssi %d assign rate idx: " "%d (plcp 0x%x)\n", rssi, + rs_sta->start_rate, il3945_rates[rs_sta->start_rate].plcp); + rcu_read_unlock(); +} + +int +il3945_rate_control_register(void) +{ + return ieee80211_rate_control_register(&rs_ops); +} + +void +il3945_rate_control_unregister(void) +{ + ieee80211_rate_control_unregister(&rs_ops); +} diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c new file mode 100644 index 000000000000..863664f9ba8b --- /dev/null +++ b/drivers/net/wireless/iwlegacy/3945.c @@ -0,0 +1,2751 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/delay.h> +#include <linux/sched.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/firmware.h> +#include <linux/etherdevice.h> +#include <asm/unaligned.h> +#include <net/mac80211.h> + +#include "common.h" +#include "3945.h" + +/* Send led command */ +static int +il3945_send_led_cmd(struct il_priv *il, struct il_led_cmd *led_cmd) +{ + struct il_host_cmd cmd = { + .id = C_LEDS, + .len = sizeof(struct il_led_cmd), + .data = led_cmd, + .flags = CMD_ASYNC, + .callback = NULL, + }; + + return il_send_cmd(il, &cmd); +} + +const struct il_led_ops il3945_led_ops = { + .cmd = il3945_send_led_cmd, +}; + +#define IL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \ + [RATE_##r##M_IDX] = { RATE_##r##M_PLCP, \ + RATE_##r##M_IEEE, \ + RATE_##ip##M_IDX, \ + RATE_##in##M_IDX, \ + RATE_##rp##M_IDX, \ + RATE_##rn##M_IDX, \ + RATE_##pp##M_IDX, \ + RATE_##np##M_IDX, \ + RATE_##r##M_IDX_TBL, \ + RATE_##ip##M_IDX_TBL } + +/* + * Parameter order: + * rate, prev rate, next rate, prev tgg rate, next tgg rate + * + * If there isn't a valid next or previous rate then INV is used which + * maps to RATE_INVALID + * + */ +const struct il3945_rate_info il3945_rates[RATE_COUNT_3945] = { + IL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */ + IL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */ + IL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */ + IL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */ + IL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */ + IL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */ + IL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */ + IL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */ + IL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */ + IL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */ + IL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */ + IL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV), /* 54mbps */ +}; + +static inline u8 +il3945_get_prev_ieee_rate(u8 rate_idx) +{ + u8 rate = il3945_rates[rate_idx].prev_ieee; + + if (rate == RATE_INVALID) + rate = rate_idx; + return rate; +} + +/* 1 = enable the il3945_disable_events() function */ +#define IL_EVT_DISABLE (0) +#define IL_EVT_DISABLE_SIZE (1532/32) + +/** + * il3945_disable_events - Disable selected events in uCode event log + * + * Disable an event by writing "1"s into "disable" + * bitmap in SRAM. Bit position corresponds to Event # (id/type). + * Default values of 0 enable uCode events to be logged. + * Use for only special debugging. This function is just a placeholder as-is, + * you'll need to provide the special bits! ... + * ... and set IL_EVT_DISABLE to 1. */ +void +il3945_disable_events(struct il_priv *il) +{ + int i; + u32 base; /* SRAM address of event log header */ + u32 disable_ptr; /* SRAM address of event-disable bitmap array */ + u32 array_size; /* # of u32 entries in array */ + static const u32 evt_disable[IL_EVT_DISABLE_SIZE] = { + 0x00000000, /* 31 - 0 Event id numbers */ + 0x00000000, /* 63 - 32 */ + 0x00000000, /* 95 - 64 */ + 0x00000000, /* 127 - 96 */ + 0x00000000, /* 159 - 128 */ + 0x00000000, /* 191 - 160 */ + 0x00000000, /* 223 - 192 */ + 0x00000000, /* 255 - 224 */ + 0x00000000, /* 287 - 256 */ + 0x00000000, /* 319 - 288 */ + 0x00000000, /* 351 - 320 */ + 0x00000000, /* 383 - 352 */ + 0x00000000, /* 415 - 384 */ + 0x00000000, /* 447 - 416 */ + 0x00000000, /* 479 - 448 */ + 0x00000000, /* 511 - 480 */ + 0x00000000, /* 543 - 512 */ + 0x00000000, /* 575 - 544 */ + 0x00000000, /* 607 - 576 */ + 0x00000000, /* 639 - 608 */ + 0x00000000, /* 671 - 640 */ + 0x00000000, /* 703 - 672 */ + 0x00000000, /* 735 - 704 */ + 0x00000000, /* 767 - 736 */ + 0x00000000, /* 799 - 768 */ + 0x00000000, /* 831 - 800 */ + 0x00000000, /* 863 - 832 */ + 0x00000000, /* 895 - 864 */ + 0x00000000, /* 927 - 896 */ + 0x00000000, /* 959 - 928 */ + 0x00000000, /* 991 - 960 */ + 0x00000000, /* 1023 - 992 */ + 0x00000000, /* 1055 - 1024 */ + 0x00000000, /* 1087 - 1056 */ + 0x00000000, /* 1119 - 1088 */ + 0x00000000, /* 1151 - 1120 */ + 0x00000000, /* 1183 - 1152 */ + 0x00000000, /* 1215 - 1184 */ + 0x00000000, /* 1247 - 1216 */ + 0x00000000, /* 1279 - 1248 */ + 0x00000000, /* 1311 - 1280 */ + 0x00000000, /* 1343 - 1312 */ + 0x00000000, /* 1375 - 1344 */ + 0x00000000, /* 1407 - 1376 */ + 0x00000000, /* 1439 - 1408 */ + 0x00000000, /* 1471 - 1440 */ + 0x00000000, /* 1503 - 1472 */ + }; + + base = le32_to_cpu(il->card_alive.log_event_table_ptr); + if (!il3945_hw_valid_rtc_data_addr(base)) { + IL_ERR("Invalid event log pointer 0x%08X\n", base); + return; + } + + disable_ptr = il_read_targ_mem(il, base + (4 * sizeof(u32))); + array_size = il_read_targ_mem(il, base + (5 * sizeof(u32))); + + if (IL_EVT_DISABLE && array_size == IL_EVT_DISABLE_SIZE) { + D_INFO("Disabling selected uCode log events at 0x%x\n", + disable_ptr); + for (i = 0; i < IL_EVT_DISABLE_SIZE; i++) + il_write_targ_mem(il, disable_ptr + (i * sizeof(u32)), + evt_disable[i]); + + } else { + D_INFO("Selected uCode log events may be disabled\n"); + D_INFO(" by writing \"1\"s into disable bitmap\n"); + D_INFO(" in SRAM at 0x%x, size %d u32s\n", disable_ptr, + array_size); + } + +} + +static int +il3945_hwrate_to_plcp_idx(u8 plcp) +{ + int idx; + + for (idx = 0; idx < RATE_COUNT_3945; idx++) + if (il3945_rates[idx].plcp == plcp) + return idx; + return -1; +} + +#ifdef CONFIG_IWLEGACY_DEBUG +#define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x + +static const char * +il3945_get_tx_fail_reason(u32 status) +{ + switch (status & TX_STATUS_MSK) { + case TX_3945_STATUS_SUCCESS: + return "SUCCESS"; + TX_STATUS_ENTRY(SHORT_LIMIT); + TX_STATUS_ENTRY(LONG_LIMIT); + TX_STATUS_ENTRY(FIFO_UNDERRUN); + TX_STATUS_ENTRY(MGMNT_ABORT); + TX_STATUS_ENTRY(NEXT_FRAG); + TX_STATUS_ENTRY(LIFE_EXPIRE); + TX_STATUS_ENTRY(DEST_PS); + TX_STATUS_ENTRY(ABORTED); + TX_STATUS_ENTRY(BT_RETRY); + TX_STATUS_ENTRY(STA_INVALID); + TX_STATUS_ENTRY(FRAG_DROPPED); + TX_STATUS_ENTRY(TID_DISABLE); + TX_STATUS_ENTRY(FRAME_FLUSHED); + TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); + TX_STATUS_ENTRY(TX_LOCKED); + TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); + } + + return "UNKNOWN"; +} +#else +static inline const char * +il3945_get_tx_fail_reason(u32 status) +{ + return ""; +} +#endif + +/* + * get ieee prev rate from rate scale table. + * for A and B mode we need to overright prev + * value + */ +int +il3945_rs_next_rate(struct il_priv *il, int rate) +{ + int next_rate = il3945_get_prev_ieee_rate(rate); + + switch (il->band) { + case IEEE80211_BAND_5GHZ: + if (rate == RATE_12M_IDX) + next_rate = RATE_9M_IDX; + else if (rate == RATE_6M_IDX) + next_rate = RATE_6M_IDX; + break; + case IEEE80211_BAND_2GHZ: + if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) && + il_is_associated(il)) { + if (rate == RATE_11M_IDX) + next_rate = RATE_5M_IDX; + } + break; + + default: + break; + } + + return next_rate; +} + +/** + * il3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd + * + * When FW advances 'R' idx, all entries between old and new 'R' idx + * need to be reclaimed. As result, some free space forms. If there is + * enough free space (> low mark), wake the stack that feeds us. + */ +static void +il3945_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx) +{ + struct il_tx_queue *txq = &il->txq[txq_id]; + struct il_queue *q = &txq->q; + struct il_tx_info *tx_info; + + BUG_ON(txq_id == IL39_CMD_QUEUE_NUM); + + for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx; + q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) { + + tx_info = &txq->txb[txq->q.read_ptr]; + ieee80211_tx_status_irqsafe(il->hw, tx_info->skb); + tx_info->skb = NULL; + il->cfg->ops->lib->txq_free_tfd(il, txq); + } + + if (il_queue_space(q) > q->low_mark && txq_id >= 0 && + txq_id != IL39_CMD_QUEUE_NUM && il->mac80211_registered) + il_wake_queue(il, txq); +} + +/** + * il3945_hdl_tx - Handle Tx response + */ +static void +il3945_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + u16 sequence = le16_to_cpu(pkt->hdr.sequence); + int txq_id = SEQ_TO_QUEUE(sequence); + int idx = SEQ_TO_IDX(sequence); + struct il_tx_queue *txq = &il->txq[txq_id]; + struct ieee80211_tx_info *info; + struct il3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; + u32 status = le32_to_cpu(tx_resp->status); + int rate_idx; + int fail; + + if (idx >= txq->q.n_bd || il_queue_used(&txq->q, idx) == 0) { + IL_ERR("Read idx for DMA queue txq_id (%d) idx %d " + "is out of range [0-%d] %d %d\n", txq_id, idx, + txq->q.n_bd, txq->q.write_ptr, txq->q.read_ptr); + return; + } + + txq->time_stamp = jiffies; + info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb); + ieee80211_tx_info_clear_status(info); + + /* Fill the MRR chain with some info about on-chip retransmissions */ + rate_idx = il3945_hwrate_to_plcp_idx(tx_resp->rate); + if (info->band == IEEE80211_BAND_5GHZ) + rate_idx -= IL_FIRST_OFDM_RATE; + + fail = tx_resp->failure_frame; + + info->status.rates[0].idx = rate_idx; + info->status.rates[0].count = fail + 1; /* add final attempt */ + + /* tx_status->rts_retry_count = tx_resp->failure_rts; */ + info->flags |= + ((status & TX_STATUS_MSK) == + TX_STATUS_SUCCESS) ? IEEE80211_TX_STAT_ACK : 0; + + D_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", txq_id, + il3945_get_tx_fail_reason(status), status, tx_resp->rate, + tx_resp->failure_frame); + + D_TX_REPLY("Tx queue reclaim %d\n", idx); + il3945_tx_queue_reclaim(il, txq_id, idx); + + if (status & TX_ABORT_REQUIRED_MSK) + IL_ERR("TODO: Implement Tx ABORT REQUIRED!!!\n"); +} + +/***************************************************************************** + * + * Intel PRO/Wireless 3945ABG/BG Network Connection + * + * RX handler implementations + * + *****************************************************************************/ +#ifdef CONFIG_IWLEGACY_DEBUGFS +static void +il3945_accumulative_stats(struct il_priv *il, __le32 * stats) +{ + int i; + __le32 *prev_stats; + u32 *accum_stats; + u32 *delta, *max_delta; + + prev_stats = (__le32 *) &il->_3945.stats; + accum_stats = (u32 *) &il->_3945.accum_stats; + delta = (u32 *) &il->_3945.delta_stats; + max_delta = (u32 *) &il->_3945.max_delta; + + for (i = sizeof(__le32); i < sizeof(struct il3945_notif_stats); + i += + sizeof(__le32), stats++, prev_stats++, delta++, max_delta++, + accum_stats++) { + if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) { + *delta = + (le32_to_cpu(*stats) - le32_to_cpu(*prev_stats)); + *accum_stats += *delta; + if (*delta > *max_delta) + *max_delta = *delta; + } + } + + /* reset accumulative stats for "no-counter" type stats */ + il->_3945.accum_stats.general.temperature = + il->_3945.stats.general.temperature; + il->_3945.accum_stats.general.ttl_timestamp = + il->_3945.stats.general.ttl_timestamp; +} +#endif + +void +il3945_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + + D_RX("Statistics notification received (%d vs %d).\n", + (int)sizeof(struct il3945_notif_stats), + le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK); +#ifdef CONFIG_IWLEGACY_DEBUGFS + il3945_accumulative_stats(il, (__le32 *) &pkt->u.raw); +#endif + + memcpy(&il->_3945.stats, pkt->u.raw, sizeof(il->_3945.stats)); +} + +void +il3945_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + __le32 *flag = (__le32 *) &pkt->u.raw; + + if (le32_to_cpu(*flag) & UCODE_STATS_CLEAR_MSK) { +#ifdef CONFIG_IWLEGACY_DEBUGFS + memset(&il->_3945.accum_stats, 0, + sizeof(struct il3945_notif_stats)); + memset(&il->_3945.delta_stats, 0, + sizeof(struct il3945_notif_stats)); + memset(&il->_3945.max_delta, 0, + sizeof(struct il3945_notif_stats)); +#endif + D_RX("Statistics have been cleared\n"); + } + il3945_hdl_stats(il, rxb); +} + +/****************************************************************************** + * + * Misc. internal state and helper functions + * + ******************************************************************************/ + +/* This is necessary only for a number of stats, see the caller. */ +static int +il3945_is_network_packet(struct il_priv *il, struct ieee80211_hdr *header) +{ + /* Filter incoming packets to determine if they are targeted toward + * this network, discarding packets coming from ourselves */ + switch (il->iw_mode) { + case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */ + /* packets to our IBSS update information */ + return !compare_ether_addr(header->addr3, il->bssid); + case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */ + /* packets to our IBSS update information */ + return !compare_ether_addr(header->addr2, il->bssid); + default: + return 1; + } +} + +static void +il3945_pass_packet_to_mac80211(struct il_priv *il, struct il_rx_buf *rxb, + struct ieee80211_rx_status *stats) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IL_RX_DATA(pkt); + struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt); + struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt); + u16 len = le16_to_cpu(rx_hdr->len); + struct sk_buff *skb; + __le16 fc = hdr->frame_control; + + /* We received data from the HW, so stop the watchdog */ + if (unlikely + (len + IL39_RX_FRAME_SIZE > + PAGE_SIZE << il->hw_params.rx_page_order)) { + D_DROP("Corruption detected!\n"); + return; + } + + /* We only process data packets if the interface is open */ + if (unlikely(!il->is_open)) { + D_DROP("Dropping packet while interface is not open.\n"); + return; + } + + skb = dev_alloc_skb(128); + if (!skb) { + IL_ERR("dev_alloc_skb failed\n"); + return; + } + + if (!il3945_mod_params.sw_crypto) + il_set_decrypted_flag(il, (struct ieee80211_hdr *)rxb_addr(rxb), + le32_to_cpu(rx_end->status), stats); + + skb_add_rx_frag(skb, 0, rxb->page, + (void *)rx_hdr->payload - (void *)pkt, len); + + il_update_stats(il, false, fc, len); + memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); + + ieee80211_rx(il->hw, skb); + il->alloc_rxb_page--; + rxb->page = NULL; +} + +#define IL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) + +static void +il3945_hdl_rx(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct ieee80211_hdr *header; + struct ieee80211_rx_status rx_status; + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il3945_rx_frame_stats *rx_stats = IL_RX_STATS(pkt); + struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt); + struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt); + u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg); + u16 rx_stats_noise_diff __maybe_unused = + le16_to_cpu(rx_stats->noise_diff); + u8 network_packet; + + rx_status.flag = 0; + rx_status.mactime = le64_to_cpu(rx_end->timestamp); + rx_status.band = + (rx_hdr-> + phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? IEEE80211_BAND_2GHZ : + IEEE80211_BAND_5GHZ; + rx_status.freq = + ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel), + rx_status.band); + + rx_status.rate_idx = il3945_hwrate_to_plcp_idx(rx_hdr->rate); + if (rx_status.band == IEEE80211_BAND_5GHZ) + rx_status.rate_idx -= IL_FIRST_OFDM_RATE; + + rx_status.antenna = + (le16_to_cpu(rx_hdr->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> + 4; + + /* set the preamble flag if appropriate */ + if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) + rx_status.flag |= RX_FLAG_SHORTPRE; + + if ((unlikely(rx_stats->phy_count > 20))) { + D_DROP("dsp size out of range [0,20]: %d/n", + rx_stats->phy_count); + return; + } + + if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR) || + !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) { + D_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status); + return; + } + + /* Convert 3945's rssi indicator to dBm */ + rx_status.signal = rx_stats->rssi - IL39_RSSI_OFFSET; + + D_STATS("Rssi %d sig_avg %d noise_diff %d\n", rx_status.signal, + rx_stats_sig_avg, rx_stats_noise_diff); + + header = (struct ieee80211_hdr *)IL_RX_DATA(pkt); + + network_packet = il3945_is_network_packet(il, header); + + D_STATS("[%c] %d RSSI:%d Signal:%u, Rate:%u\n", + network_packet ? '*' : ' ', le16_to_cpu(rx_hdr->channel), + rx_status.signal, rx_status.signal, rx_status.rate_idx); + + il_dbg_log_rx_data_frame(il, le16_to_cpu(rx_hdr->len), header); + + if (network_packet) { + il->_3945.last_beacon_time = + le32_to_cpu(rx_end->beacon_timestamp); + il->_3945.last_tsf = le64_to_cpu(rx_end->timestamp); + il->_3945.last_rx_rssi = rx_status.signal; + } + + il3945_pass_packet_to_mac80211(il, rxb, &rx_status); +} + +int +il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq, + dma_addr_t addr, u16 len, u8 reset, u8 pad) +{ + int count; + struct il_queue *q; + struct il3945_tfd *tfd, *tfd_tmp; + + q = &txq->q; + tfd_tmp = (struct il3945_tfd *)txq->tfds; + tfd = &tfd_tmp[q->write_ptr]; + + if (reset) + memset(tfd, 0, sizeof(*tfd)); + + count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); + + if (count >= NUM_TFD_CHUNKS || count < 0) { + IL_ERR("Error can not send more than %d chunks\n", + NUM_TFD_CHUNKS); + return -EINVAL; + } + + tfd->tbs[count].addr = cpu_to_le32(addr); + tfd->tbs[count].len = cpu_to_le32(len); + + count++; + + tfd->control_flags = + cpu_to_le32(TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad)); + + return 0; +} + +/** + * il3945_hw_txq_free_tfd - Free one TFD, those at idx [txq->q.read_ptr] + * + * Does NOT advance any idxes + */ +void +il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq) +{ + struct il3945_tfd *tfd_tmp = (struct il3945_tfd *)txq->tfds; + int idx = txq->q.read_ptr; + struct il3945_tfd *tfd = &tfd_tmp[idx]; + struct pci_dev *dev = il->pci_dev; + int i; + int counter; + + /* sanity check */ + counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); + if (counter > NUM_TFD_CHUNKS) { + IL_ERR("Too many chunks: %i\n", counter); + /* @todo issue fatal error, it is quite serious situation */ + return; + } + + /* Unmap tx_cmd */ + if (counter) + pci_unmap_single(dev, dma_unmap_addr(&txq->meta[idx], mapping), + dma_unmap_len(&txq->meta[idx], len), + PCI_DMA_TODEVICE); + + /* unmap chunks if any */ + + for (i = 1; i < counter; i++) + pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr), + le32_to_cpu(tfd->tbs[i].len), + PCI_DMA_TODEVICE); + + /* free SKB */ + if (txq->txb) { + struct sk_buff *skb; + + skb = txq->txb[txq->q.read_ptr].skb; + + /* can be called from irqs-disabled context */ + if (skb) { + dev_kfree_skb_any(skb); + txq->txb[txq->q.read_ptr].skb = NULL; + } + } +} + +/** + * il3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD: + * +*/ +void +il3945_hw_build_tx_cmd_rate(struct il_priv *il, struct il_device_cmd *cmd, + struct ieee80211_tx_info *info, + struct ieee80211_hdr *hdr, int sta_id, int tx_id) +{ + u16 hw_value = ieee80211_get_tx_rate(il->hw, info)->hw_value; + u16 rate_idx = min(hw_value & 0xffff, RATE_COUNT_3945); + u16 rate_mask; + int rate; + u8 rts_retry_limit; + u8 data_retry_limit; + __le32 tx_flags; + __le16 fc = hdr->frame_control; + struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; + + rate = il3945_rates[rate_idx].plcp; + tx_flags = tx_cmd->tx_flags; + + /* We need to figure out how to get the sta->supp_rates while + * in this running context */ + rate_mask = RATES_MASK_3945; + + /* Set retry limit on DATA packets and Probe Responses */ + if (ieee80211_is_probe_resp(fc)) + data_retry_limit = 3; + else + data_retry_limit = IL_DEFAULT_TX_RETRY; + tx_cmd->data_retry_limit = data_retry_limit; + + if (tx_id >= IL39_CMD_QUEUE_NUM) + rts_retry_limit = 3; + else + rts_retry_limit = 7; + + if (data_retry_limit < rts_retry_limit) + rts_retry_limit = data_retry_limit; + tx_cmd->rts_retry_limit = rts_retry_limit; + + tx_cmd->rate = rate; + tx_cmd->tx_flags = tx_flags; + + /* OFDM */ + tx_cmd->supp_rates[0] = + ((rate_mask & IL_OFDM_RATES_MASK) >> IL_FIRST_OFDM_RATE) & 0xFF; + + /* CCK */ + tx_cmd->supp_rates[1] = (rate_mask & 0xF); + + D_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X " + "cck/ofdm mask: 0x%x/0x%x\n", sta_id, tx_cmd->rate, + le32_to_cpu(tx_cmd->tx_flags), tx_cmd->supp_rates[1], + tx_cmd->supp_rates[0]); +} + +static u8 +il3945_sync_sta(struct il_priv *il, int sta_id, u16 tx_rate) +{ + unsigned long flags_spin; + struct il_station_entry *station; + + if (sta_id == IL_INVALID_STATION) + return IL_INVALID_STATION; + + spin_lock_irqsave(&il->sta_lock, flags_spin); + station = &il->stations[sta_id]; + + station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK; + station->sta.rate_n_flags = cpu_to_le16(tx_rate); + station->sta.mode = STA_CONTROL_MODIFY_MSK; + il_send_add_sta(il, &station->sta, CMD_ASYNC); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + + D_RATE("SCALE sync station %d to rate %d\n", sta_id, tx_rate); + return sta_id; +} + +static void +il3945_set_pwr_vmain(struct il_priv *il) +{ +/* + * (for documentation purposes) + * to set power to V_AUX, do + + if (pci_pme_capable(il->pci_dev, PCI_D3cold)) { + il_set_bits_mask_prph(il, APMG_PS_CTRL_REG, + APMG_PS_CTRL_VAL_PWR_SRC_VAUX, + ~APMG_PS_CTRL_MSK_PWR_SRC); + + _il_poll_bit(il, CSR_GPIO_IN, + CSR_GPIO_IN_VAL_VAUX_PWR_SRC, + CSR_GPIO_IN_BIT_AUX_POWER, 5000); + } + */ + + il_set_bits_mask_prph(il, APMG_PS_CTRL_REG, + APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, + ~APMG_PS_CTRL_MSK_PWR_SRC); + + _il_poll_bit(il, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC, + CSR_GPIO_IN_BIT_AUX_POWER, 5000); +} + +static int +il3945_rx_init(struct il_priv *il, struct il_rx_queue *rxq) +{ + il_wr(il, FH39_RCSR_RBD_BASE(0), rxq->bd_dma); + il_wr(il, FH39_RCSR_RPTR_ADDR(0), rxq->rb_stts_dma); + il_wr(il, FH39_RCSR_WPTR(0), 0); + il_wr(il, FH39_RCSR_CONFIG(0), + FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE | + FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE | + FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN | + FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 | (RX_QUEUE_SIZE_LOG + << + FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) + | FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST | (1 << + FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) + | FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH); + + /* fake read to flush all prev I/O */ + il_rd(il, FH39_RSSR_CTRL); + + return 0; +} + +static int +il3945_tx_reset(struct il_priv *il) +{ + + /* bypass mode */ + il_wr_prph(il, ALM_SCD_MODE_REG, 0x2); + + /* RA 0 is active */ + il_wr_prph(il, ALM_SCD_ARASTAT_REG, 0x01); + + /* all 6 fifo are active */ + il_wr_prph(il, ALM_SCD_TXFACT_REG, 0x3f); + + il_wr_prph(il, ALM_SCD_SBYP_MODE_1_REG, 0x010000); + il_wr_prph(il, ALM_SCD_SBYP_MODE_2_REG, 0x030002); + il_wr_prph(il, ALM_SCD_TXF4MF_REG, 0x000004); + il_wr_prph(il, ALM_SCD_TXF5MF_REG, 0x000005); + + il_wr(il, FH39_TSSR_CBB_BASE, il->_3945.shared_phys); + + il_wr(il, FH39_TSSR_MSG_CONFIG, + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH); + + return 0; +} + +/** + * il3945_txq_ctx_reset - Reset TX queue context + * + * Destroys all DMA structures and initialize them again + */ +static int +il3945_txq_ctx_reset(struct il_priv *il) +{ + int rc; + int txq_id, slots_num; + + il3945_hw_txq_ctx_free(il); + + /* allocate tx queue structure */ + rc = il_alloc_txq_mem(il); + if (rc) + return rc; + + /* Tx CMD queue */ + rc = il3945_tx_reset(il); + if (rc) + goto error; + + /* Tx queue(s) */ + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { + slots_num = + (txq_id == + IL39_CMD_QUEUE_NUM) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + rc = il_tx_queue_init(il, &il->txq[txq_id], slots_num, txq_id); + if (rc) { + IL_ERR("Tx %d queue init failed\n", txq_id); + goto error; + } + } + + return rc; + +error: + il3945_hw_txq_ctx_free(il); + return rc; +} + +/* + * Start up 3945's basic functionality after it has been reset + * (e.g. after platform boot, or shutdown via il_apm_stop()) + * NOTE: This does not load uCode nor start the embedded processor + */ +static int +il3945_apm_init(struct il_priv *il) +{ + int ret = il_apm_init(il); + + /* Clear APMG (NIC's internal power management) interrupts */ + il_wr_prph(il, APMG_RTC_INT_MSK_REG, 0x0); + il_wr_prph(il, APMG_RTC_INT_STT_REG, 0xFFFFFFFF); + + /* Reset radio chip */ + il_set_bits_prph(il, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ); + udelay(5); + il_clear_bits_prph(il, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ); + + return ret; +} + +static void +il3945_nic_config(struct il_priv *il) +{ + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + unsigned long flags; + u8 rev_id = il->pci_dev->revision; + + spin_lock_irqsave(&il->lock, flags); + + /* Determine HW type */ + D_INFO("HW Revision ID = 0x%X\n", rev_id); + + if (rev_id & PCI_CFG_REV_ID_BIT_RTP) + D_INFO("RTP type\n"); + else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) { + D_INFO("3945 RADIO-MB type\n"); + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR39_HW_IF_CONFIG_REG_BIT_3945_MB); + } else { + D_INFO("3945 RADIO-MM type\n"); + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR39_HW_IF_CONFIG_REG_BIT_3945_MM); + } + + if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) { + D_INFO("SKU OP mode is mrc\n"); + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC); + } else + D_INFO("SKU OP mode is basic\n"); + + if ((eeprom->board_revision & 0xF0) == 0xD0) { + D_INFO("3945ABG revision is 0x%X\n", eeprom->board_revision); + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); + } else { + D_INFO("3945ABG revision is 0x%X\n", eeprom->board_revision); + il_clear_bit(il, CSR_HW_IF_CONFIG_REG, + CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); + } + + if (eeprom->almgor_m_version <= 1) { + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A); + D_INFO("Card M type A version is 0x%X\n", + eeprom->almgor_m_version); + } else { + D_INFO("Card M type B version is 0x%X\n", + eeprom->almgor_m_version); + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B); + } + spin_unlock_irqrestore(&il->lock, flags); + + if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE) + D_RF_KILL("SW RF KILL supported in EEPROM.\n"); + + if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) + D_RF_KILL("HW RF KILL supported in EEPROM.\n"); +} + +int +il3945_hw_nic_init(struct il_priv *il) +{ + int rc; + unsigned long flags; + struct il_rx_queue *rxq = &il->rxq; + + spin_lock_irqsave(&il->lock, flags); + il->cfg->ops->lib->apm_ops.init(il); + spin_unlock_irqrestore(&il->lock, flags); + + il3945_set_pwr_vmain(il); + + il->cfg->ops->lib->apm_ops.config(il); + + /* Allocate the RX queue, or reset if it is already allocated */ + if (!rxq->bd) { + rc = il_rx_queue_alloc(il); + if (rc) { + IL_ERR("Unable to initialize Rx queue\n"); + return -ENOMEM; + } + } else + il3945_rx_queue_reset(il, rxq); + + il3945_rx_replenish(il); + + il3945_rx_init(il, rxq); + + /* Look at using this instead: + rxq->need_update = 1; + il_rx_queue_update_write_ptr(il, rxq); + */ + + il_wr(il, FH39_RCSR_WPTR(0), rxq->write & ~7); + + rc = il3945_txq_ctx_reset(il); + if (rc) + return rc; + + set_bit(S_INIT, &il->status); + + return 0; +} + +/** + * il3945_hw_txq_ctx_free - Free TXQ Context + * + * Destroy all TX DMA queues and structures + */ +void +il3945_hw_txq_ctx_free(struct il_priv *il) +{ + int txq_id; + + /* Tx queues */ + if (il->txq) + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) + if (txq_id == IL39_CMD_QUEUE_NUM) + il_cmd_queue_free(il); + else + il_tx_queue_free(il, txq_id); + + /* free tx queue structure */ + il_txq_mem(il); +} + +void +il3945_hw_txq_ctx_stop(struct il_priv *il) +{ + int txq_id; + + /* stop SCD */ + il_wr_prph(il, ALM_SCD_MODE_REG, 0); + il_wr_prph(il, ALM_SCD_TXFACT_REG, 0); + + /* reset TFD queues */ + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { + il_wr(il, FH39_TCSR_CONFIG(txq_id), 0x0); + il_poll_bit(il, FH39_TSSR_TX_STATUS, + FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id), + 1000); + } + + il3945_hw_txq_ctx_free(il); +} + +/** + * il3945_hw_reg_adjust_power_by_temp + * return idx delta into power gain settings table +*/ +static int +il3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading) +{ + return (new_reading - old_reading) * (-11) / 100; +} + +/** + * il3945_hw_reg_temp_out_of_range - Keep temperature in sane range + */ +static inline int +il3945_hw_reg_temp_out_of_range(int temperature) +{ + return (temperature < -260 || temperature > 25) ? 1 : 0; +} + +int +il3945_hw_get_temperature(struct il_priv *il) +{ + return _il_rd(il, CSR_UCODE_DRV_GP2); +} + +/** + * il3945_hw_reg_txpower_get_temperature + * get the current temperature by reading from NIC +*/ +static int +il3945_hw_reg_txpower_get_temperature(struct il_priv *il) +{ + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + int temperature; + + temperature = il3945_hw_get_temperature(il); + + /* driver's okay range is -260 to +25. + * human readable okay range is 0 to +285 */ + D_INFO("Temperature: %d\n", temperature + IL_TEMP_CONVERT); + + /* handle insane temp reading */ + if (il3945_hw_reg_temp_out_of_range(temperature)) { + IL_ERR("Error bad temperature value %d\n", temperature); + + /* if really really hot(?), + * substitute the 3rd band/group's temp measured at factory */ + if (il->last_temperature > 100) + temperature = eeprom->groups[2].temperature; + else /* else use most recent "sane" value from driver */ + temperature = il->last_temperature; + } + + return temperature; /* raw, not "human readable" */ +} + +/* Adjust Txpower only if temperature variance is greater than threshold. + * + * Both are lower than older versions' 9 degrees */ +#define IL_TEMPERATURE_LIMIT_TIMER 6 + +/** + * il3945_is_temp_calib_needed - determines if new calibration is needed + * + * records new temperature in tx_mgr->temperature. + * replaces tx_mgr->last_temperature *only* if calib needed + * (assumes caller will actually do the calibration!). */ +static int +il3945_is_temp_calib_needed(struct il_priv *il) +{ + int temp_diff; + + il->temperature = il3945_hw_reg_txpower_get_temperature(il); + temp_diff = il->temperature - il->last_temperature; + + /* get absolute value */ + if (temp_diff < 0) { + D_POWER("Getting cooler, delta %d,\n", temp_diff); + temp_diff = -temp_diff; + } else if (temp_diff == 0) + D_POWER("Same temp,\n"); + else + D_POWER("Getting warmer, delta %d,\n", temp_diff); + + /* if we don't need calibration, *don't* update last_temperature */ + if (temp_diff < IL_TEMPERATURE_LIMIT_TIMER) { + D_POWER("Timed thermal calib not needed\n"); + return 0; + } + + D_POWER("Timed thermal calib needed\n"); + + /* assume that caller will actually do calib ... + * update the "last temperature" value */ + il->last_temperature = il->temperature; + return 1; +} + +#define IL_MAX_GAIN_ENTRIES 78 +#define IL_CCK_FROM_OFDM_POWER_DIFF -5 +#define IL_CCK_FROM_OFDM_IDX_DIFF (10) + +/* radio and DSP power table, each step is 1/2 dB. + * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */ +static struct il3945_tx_power power_gain_table[2][IL_MAX_GAIN_ENTRIES] = { + { + {251, 127}, /* 2.4 GHz, highest power */ + {251, 127}, + {251, 127}, + {251, 127}, + {251, 125}, + {251, 110}, + {251, 105}, + {251, 98}, + {187, 125}, + {187, 115}, + {187, 108}, + {187, 99}, + {243, 119}, + {243, 111}, + {243, 105}, + {243, 97}, + {243, 92}, + {211, 106}, + {211, 100}, + {179, 120}, + {179, 113}, + {179, 107}, + {147, 125}, + {147, 119}, + {147, 112}, + {147, 106}, + {147, 101}, + {147, 97}, + {147, 91}, + {115, 107}, + {235, 121}, + {235, 115}, + {235, 109}, + {203, 127}, + {203, 121}, + {203, 115}, + {203, 108}, + {203, 102}, + {203, 96}, + {203, 92}, + {171, 110}, + {171, 104}, + {171, 98}, + {139, 116}, + {227, 125}, + {227, 119}, + {227, 113}, + {227, 107}, + {227, 101}, + {227, 96}, + {195, 113}, + {195, 106}, + {195, 102}, + {195, 95}, + {163, 113}, + {163, 106}, + {163, 102}, + {163, 95}, + {131, 113}, + {131, 106}, + {131, 102}, + {131, 95}, + {99, 113}, + {99, 106}, + {99, 102}, + {99, 95}, + {67, 113}, + {67, 106}, + {67, 102}, + {67, 95}, + {35, 113}, + {35, 106}, + {35, 102}, + {35, 95}, + {3, 113}, + {3, 106}, + {3, 102}, + {3, 95} /* 2.4 GHz, lowest power */ + }, + { + {251, 127}, /* 5.x GHz, highest power */ + {251, 120}, + {251, 114}, + {219, 119}, + {219, 101}, + {187, 113}, + {187, 102}, + {155, 114}, + {155, 103}, + {123, 117}, + {123, 107}, + {123, 99}, + {123, 92}, + {91, 108}, + {59, 125}, + {59, 118}, + {59, 109}, + {59, 102}, + {59, 96}, + {59, 90}, + {27, 104}, + {27, 98}, + {27, 92}, + {115, 118}, + {115, 111}, + {115, 104}, + {83, 126}, + {83, 121}, + {83, 113}, + {83, 105}, + {83, 99}, + {51, 118}, + {51, 111}, + {51, 104}, + {51, 98}, + {19, 116}, + {19, 109}, + {19, 102}, + {19, 98}, + {19, 93}, + {171, 113}, + {171, 107}, + {171, 99}, + {139, 120}, + {139, 113}, + {139, 107}, + {139, 99}, + {107, 120}, + {107, 113}, + {107, 107}, + {107, 99}, + {75, 120}, + {75, 113}, + {75, 107}, + {75, 99}, + {43, 120}, + {43, 113}, + {43, 107}, + {43, 99}, + {11, 120}, + {11, 113}, + {11, 107}, + {11, 99}, + {131, 107}, + {131, 99}, + {99, 120}, + {99, 113}, + {99, 107}, + {99, 99}, + {67, 120}, + {67, 113}, + {67, 107}, + {67, 99}, + {35, 120}, + {35, 113}, + {35, 107}, + {35, 99}, + {3, 120} /* 5.x GHz, lowest power */ + } +}; + +static inline u8 +il3945_hw_reg_fix_power_idx(int idx) +{ + if (idx < 0) + return 0; + if (idx >= IL_MAX_GAIN_ENTRIES) + return IL_MAX_GAIN_ENTRIES - 1; + return (u8) idx; +} + +/* Kick off thermal recalibration check every 60 seconds */ +#define REG_RECALIB_PERIOD (60) + +/** + * il3945_hw_reg_set_scan_power - Set Tx power for scan probe requests + * + * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK) + * or 6 Mbit (OFDM) rates. + */ +static void +il3945_hw_reg_set_scan_power(struct il_priv *il, u32 scan_tbl_idx, s32 rate_idx, + const s8 *clip_pwrs, + struct il_channel_info *ch_info, int band_idx) +{ + struct il3945_scan_power_info *scan_power_info; + s8 power; + u8 power_idx; + + scan_power_info = &ch_info->scan_pwr_info[scan_tbl_idx]; + + /* use this channel group's 6Mbit clipping/saturation pwr, + * but cap at regulatory scan power restriction (set during init + * based on eeprom channel data) for this channel. */ + power = min(ch_info->scan_power, clip_pwrs[RATE_6M_IDX_TBL]); + + power = min(power, il->tx_power_user_lmt); + scan_power_info->requested_power = power; + + /* find difference between new scan *power* and current "normal" + * Tx *power* for 6Mb. Use this difference (x2) to adjust the + * current "normal" temperature-compensated Tx power *idx* for + * this rate (1Mb or 6Mb) to yield new temp-compensated scan power + * *idx*. */ + power_idx = + ch_info->power_info[rate_idx].power_table_idx - (power - + ch_info-> + power_info + [RATE_6M_IDX_TBL]. + requested_power) * + 2; + + /* store reference idx that we use when adjusting *all* scan + * powers. So we can accommodate user (all channel) or spectrum + * management (single channel) power changes "between" temperature + * feedback compensation procedures. + * don't force fit this reference idx into gain table; it may be a + * negative number. This will help avoid errors when we're at + * the lower bounds (highest gains, for warmest temperatures) + * of the table. */ + + /* don't exceed table bounds for "real" setting */ + power_idx = il3945_hw_reg_fix_power_idx(power_idx); + + scan_power_info->power_table_idx = power_idx; + scan_power_info->tpc.tx_gain = + power_gain_table[band_idx][power_idx].tx_gain; + scan_power_info->tpc.dsp_atten = + power_gain_table[band_idx][power_idx].dsp_atten; +} + +/** + * il3945_send_tx_power - fill in Tx Power command with gain settings + * + * Configures power settings for all rates for the current channel, + * using values from channel info struct, and send to NIC + */ +static int +il3945_send_tx_power(struct il_priv *il) +{ + int rate_idx, i; + const struct il_channel_info *ch_info = NULL; + struct il3945_txpowertable_cmd txpower = { + .channel = il->ctx.active.channel, + }; + u16 chan; + + if (WARN_ONCE + (test_bit(S_SCAN_HW, &il->status), + "TX Power requested while scanning!\n")) + return -EAGAIN; + + chan = le16_to_cpu(il->ctx.active.channel); + + txpower.band = (il->band == IEEE80211_BAND_5GHZ) ? 0 : 1; + ch_info = il_get_channel_info(il, il->band, chan); + if (!ch_info) { + IL_ERR("Failed to get channel info for channel %d [%d]\n", chan, + il->band); + return -EINVAL; + } + + if (!il_is_channel_valid(ch_info)) { + D_POWER("Not calling TX_PWR_TBL_CMD on " "non-Tx channel.\n"); + return 0; + } + + /* fill cmd with power settings for all rates for current channel */ + /* Fill OFDM rate */ + for (rate_idx = IL_FIRST_OFDM_RATE, i = 0; + rate_idx <= IL39_LAST_OFDM_RATE; rate_idx++, i++) { + + txpower.power[i].tpc = ch_info->power_info[i].tpc; + txpower.power[i].rate = il3945_rates[rate_idx].plcp; + + D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n", + le16_to_cpu(txpower.channel), txpower.band, + txpower.power[i].tpc.tx_gain, + txpower.power[i].tpc.dsp_atten, txpower.power[i].rate); + } + /* Fill CCK rates */ + for (rate_idx = IL_FIRST_CCK_RATE; rate_idx <= IL_LAST_CCK_RATE; + rate_idx++, i++) { + txpower.power[i].tpc = ch_info->power_info[i].tpc; + txpower.power[i].rate = il3945_rates[rate_idx].plcp; + + D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n", + le16_to_cpu(txpower.channel), txpower.band, + txpower.power[i].tpc.tx_gain, + txpower.power[i].tpc.dsp_atten, txpower.power[i].rate); + } + + return il_send_cmd_pdu(il, C_TX_PWR_TBL, + sizeof(struct il3945_txpowertable_cmd), + &txpower); + +} + +/** + * il3945_hw_reg_set_new_power - Configures power tables at new levels + * @ch_info: Channel to update. Uses power_info.requested_power. + * + * Replace requested_power and base_power_idx ch_info fields for + * one channel. + * + * Called if user or spectrum management changes power preferences. + * Takes into account h/w and modulation limitations (clip power). + * + * This does *not* send anything to NIC, just sets up ch_info for one channel. + * + * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to + * properly fill out the scan powers, and actual h/w gain settings, + * and send changes to NIC + */ +static int +il3945_hw_reg_set_new_power(struct il_priv *il, struct il_channel_info *ch_info) +{ + struct il3945_channel_power_info *power_info; + int power_changed = 0; + int i; + const s8 *clip_pwrs; + int power; + + /* Get this chnlgrp's rate-to-max/clip-powers table */ + clip_pwrs = il->_3945.clip_groups[ch_info->group_idx].clip_powers; + + /* Get this channel's rate-to-current-power settings table */ + power_info = ch_info->power_info; + + /* update OFDM Txpower settings */ + for (i = RATE_6M_IDX_TBL; i <= RATE_54M_IDX_TBL; i++, ++power_info) { + int delta_idx; + + /* limit new power to be no more than h/w capability */ + power = min(ch_info->curr_txpow, clip_pwrs[i]); + if (power == power_info->requested_power) + continue; + + /* find difference between old and new requested powers, + * update base (non-temp-compensated) power idx */ + delta_idx = (power - power_info->requested_power) * 2; + power_info->base_power_idx -= delta_idx; + + /* save new requested power value */ + power_info->requested_power = power; + + power_changed = 1; + } + + /* update CCK Txpower settings, based on OFDM 12M setting ... + * ... all CCK power settings for a given channel are the *same*. */ + if (power_changed) { + power = + ch_info->power_info[RATE_12M_IDX_TBL].requested_power + + IL_CCK_FROM_OFDM_POWER_DIFF; + + /* do all CCK rates' il3945_channel_power_info structures */ + for (i = RATE_1M_IDX_TBL; i <= RATE_11M_IDX_TBL; i++) { + power_info->requested_power = power; + power_info->base_power_idx = + ch_info->power_info[RATE_12M_IDX_TBL]. + base_power_idx + IL_CCK_FROM_OFDM_IDX_DIFF; + ++power_info; + } + } + + return 0; +} + +/** + * il3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel + * + * NOTE: Returned power limit may be less (but not more) than requested, + * based strictly on regulatory (eeprom and spectrum mgt) limitations + * (no consideration for h/w clipping limitations). + */ +static int +il3945_hw_reg_get_ch_txpower_limit(struct il_channel_info *ch_info) +{ + s8 max_power; + +#if 0 + /* if we're using TGd limits, use lower of TGd or EEPROM */ + if (ch_info->tgd_data.max_power != 0) + max_power = + min(ch_info->tgd_data.max_power, + ch_info->eeprom.max_power_avg); + + /* else just use EEPROM limits */ + else +#endif + max_power = ch_info->eeprom.max_power_avg; + + return min(max_power, ch_info->max_power_avg); +} + +/** + * il3945_hw_reg_comp_txpower_temp - Compensate for temperature + * + * Compensate txpower settings of *all* channels for temperature. + * This only accounts for the difference between current temperature + * and the factory calibration temperatures, and bases the new settings + * on the channel's base_power_idx. + * + * If RxOn is "associated", this sends the new Txpower to NIC! + */ +static int +il3945_hw_reg_comp_txpower_temp(struct il_priv *il) +{ + struct il_channel_info *ch_info = NULL; + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + int delta_idx; + const s8 *clip_pwrs; /* array of h/w max power levels for each rate */ + u8 a_band; + u8 rate_idx; + u8 scan_tbl_idx; + u8 i; + int ref_temp; + int temperature = il->temperature; + + if (il->disable_tx_power_cal || test_bit(S_SCANNING, &il->status)) { + /* do not perform tx power calibration */ + return 0; + } + /* set up new Tx power info for each and every channel, 2.4 and 5.x */ + for (i = 0; i < il->channel_count; i++) { + ch_info = &il->channel_info[i]; + a_band = il_is_channel_a_band(ch_info); + + /* Get this chnlgrp's factory calibration temperature */ + ref_temp = (s16) eeprom->groups[ch_info->group_idx].temperature; + + /* get power idx adjustment based on current and factory + * temps */ + delta_idx = + il3945_hw_reg_adjust_power_by_temp(temperature, ref_temp); + + /* set tx power value for all rates, OFDM and CCK */ + for (rate_idx = 0; rate_idx < RATE_COUNT_3945; rate_idx++) { + int power_idx = + ch_info->power_info[rate_idx].base_power_idx; + + /* temperature compensate */ + power_idx += delta_idx; + + /* stay within table range */ + power_idx = il3945_hw_reg_fix_power_idx(power_idx); + ch_info->power_info[rate_idx].power_table_idx = + (u8) power_idx; + ch_info->power_info[rate_idx].tpc = + power_gain_table[a_band][power_idx]; + } + + /* Get this chnlgrp's rate-to-max/clip-powers table */ + clip_pwrs = + il->_3945.clip_groups[ch_info->group_idx].clip_powers; + + /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ + for (scan_tbl_idx = 0; scan_tbl_idx < IL_NUM_SCAN_RATES; + scan_tbl_idx++) { + s32 actual_idx = + (scan_tbl_idx == + 0) ? RATE_1M_IDX_TBL : RATE_6M_IDX_TBL; + il3945_hw_reg_set_scan_power(il, scan_tbl_idx, + actual_idx, clip_pwrs, + ch_info, a_band); + } + } + + /* send Txpower command for current channel to ucode */ + return il->cfg->ops->lib->send_tx_power(il); +} + +int +il3945_hw_reg_set_txpower(struct il_priv *il, s8 power) +{ + struct il_channel_info *ch_info; + s8 max_power; + u8 a_band; + u8 i; + + if (il->tx_power_user_lmt == power) { + D_POWER("Requested Tx power same as current " "limit: %ddBm.\n", + power); + return 0; + } + + D_POWER("Setting upper limit clamp to %ddBm.\n", power); + il->tx_power_user_lmt = power; + + /* set up new Tx powers for each and every channel, 2.4 and 5.x */ + + for (i = 0; i < il->channel_count; i++) { + ch_info = &il->channel_info[i]; + a_band = il_is_channel_a_band(ch_info); + + /* find minimum power of all user and regulatory constraints + * (does not consider h/w clipping limitations) */ + max_power = il3945_hw_reg_get_ch_txpower_limit(ch_info); + max_power = min(power, max_power); + if (max_power != ch_info->curr_txpow) { + ch_info->curr_txpow = max_power; + + /* this considers the h/w clipping limitations */ + il3945_hw_reg_set_new_power(il, ch_info); + } + } + + /* update txpower settings for all channels, + * send to NIC if associated. */ + il3945_is_temp_calib_needed(il); + il3945_hw_reg_comp_txpower_temp(il); + + return 0; +} + +static int +il3945_send_rxon_assoc(struct il_priv *il, struct il_rxon_context *ctx) +{ + int rc = 0; + struct il_rx_pkt *pkt; + struct il3945_rxon_assoc_cmd rxon_assoc; + struct il_host_cmd cmd = { + .id = C_RXON_ASSOC, + .len = sizeof(rxon_assoc), + .flags = CMD_WANT_SKB, + .data = &rxon_assoc, + }; + const struct il_rxon_cmd *rxon1 = &ctx->staging; + const struct il_rxon_cmd *rxon2 = &ctx->active; + + if (rxon1->flags == rxon2->flags && + rxon1->filter_flags == rxon2->filter_flags && + rxon1->cck_basic_rates == rxon2->cck_basic_rates && + rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates) { + D_INFO("Using current RXON_ASSOC. Not resending.\n"); + return 0; + } + + rxon_assoc.flags = ctx->staging.flags; + rxon_assoc.filter_flags = ctx->staging.filter_flags; + rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates; + rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates; + rxon_assoc.reserved = 0; + + rc = il_send_cmd_sync(il, &cmd); + if (rc) + return rc; + + pkt = (struct il_rx_pkt *)cmd.reply_page; + if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { + IL_ERR("Bad return from C_RXON_ASSOC command\n"); + rc = -EIO; + } + + il_free_pages(il, cmd.reply_page); + + return rc; +} + +/** + * il3945_commit_rxon - commit staging_rxon to hardware + * + * The RXON command in staging_rxon is committed to the hardware and + * the active_rxon structure is updated with the new data. This + * function correctly transitions out of the RXON_ASSOC_MSK state if + * a HW tune is required based on the RXON structure changes. + */ +int +il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx) +{ + /* cast away the const for active_rxon in this function */ + struct il3945_rxon_cmd *active_rxon = (void *)&ctx->active; + struct il3945_rxon_cmd *staging_rxon = (void *)&ctx->staging; + int rc = 0; + bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK); + + if (test_bit(S_EXIT_PENDING, &il->status)) + return -EINVAL; + + if (!il_is_alive(il)) + return -1; + + /* always get timestamp with Rx frame */ + staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK; + + /* select antenna */ + staging_rxon->flags &= ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); + staging_rxon->flags |= il3945_get_antenna_flags(il); + + rc = il_check_rxon_cmd(il, ctx); + if (rc) { + IL_ERR("Invalid RXON configuration. Not committing.\n"); + return -EINVAL; + } + + /* If we don't need to send a full RXON, we can use + * il3945_rxon_assoc_cmd which is used to reconfigure filter + * and other flags for the current radio configuration. */ + if (!il_full_rxon_required(il, &il->ctx)) { + rc = il_send_rxon_assoc(il, &il->ctx); + if (rc) { + IL_ERR("Error setting RXON_ASSOC " + "configuration (%d).\n", rc); + return rc; + } + + memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); + /* + * We do not commit tx power settings while channel changing, + * do it now if tx power changed. + */ + il_set_tx_power(il, il->tx_power_next, false); + return 0; + } + + /* If we are currently associated and the new config requires + * an RXON_ASSOC and the new config wants the associated mask enabled, + * we must clear the associated from the active configuration + * before we apply the new config */ + if (il_is_associated(il) && new_assoc) { + D_INFO("Toggling associated bit on current RXON\n"); + active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; + + /* + * reserved4 and 5 could have been filled by the iwlcore code. + * Let's clear them before pushing to the 3945. + */ + active_rxon->reserved4 = 0; + active_rxon->reserved5 = 0; + rc = il_send_cmd_pdu(il, C_RXON, sizeof(struct il3945_rxon_cmd), + &il->ctx.active); + + /* If the mask clearing failed then we set + * active_rxon back to what it was previously */ + if (rc) { + active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; + IL_ERR("Error clearing ASSOC_MSK on current " + "configuration (%d).\n", rc); + return rc; + } + il_clear_ucode_stations(il, &il->ctx); + il_restore_stations(il, &il->ctx); + } + + D_INFO("Sending RXON\n" "* with%s RXON_FILTER_ASSOC_MSK\n" + "* channel = %d\n" "* bssid = %pM\n", (new_assoc ? "" : "out"), + le16_to_cpu(staging_rxon->channel), staging_rxon->bssid_addr); + + /* + * reserved4 and 5 could have been filled by the iwlcore code. + * Let's clear them before pushing to the 3945. + */ + staging_rxon->reserved4 = 0; + staging_rxon->reserved5 = 0; + + il_set_rxon_hwcrypto(il, ctx, !il3945_mod_params.sw_crypto); + + /* Apply the new configuration */ + rc = il_send_cmd_pdu(il, C_RXON, sizeof(struct il3945_rxon_cmd), + staging_rxon); + if (rc) { + IL_ERR("Error setting new configuration (%d).\n", rc); + return rc; + } + + memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); + + if (!new_assoc) { + il_clear_ucode_stations(il, &il->ctx); + il_restore_stations(il, &il->ctx); + } + + /* If we issue a new RXON command which required a tune then we must + * send a new TXPOWER command or we won't be able to Tx any frames */ + rc = il_set_tx_power(il, il->tx_power_next, true); + if (rc) { + IL_ERR("Error setting Tx power (%d).\n", rc); + return rc; + } + + /* Init the hardware's rate fallback order based on the band */ + rc = il3945_init_hw_rate_table(il); + if (rc) { + IL_ERR("Error setting HW rate table: %02X\n", rc); + return -EIO; + } + + return 0; +} + +/** + * il3945_reg_txpower_periodic - called when time to check our temperature. + * + * -- reset periodic timer + * -- see if temp has changed enough to warrant re-calibration ... if so: + * -- correct coeffs for temp (can reset temp timer) + * -- save this temp as "last", + * -- send new set of gain settings to NIC + * NOTE: This should continue working, even when we're not associated, + * so we can keep our internal table of scan powers current. */ +void +il3945_reg_txpower_periodic(struct il_priv *il) +{ + /* This will kick in the "brute force" + * il3945_hw_reg_comp_txpower_temp() below */ + if (!il3945_is_temp_calib_needed(il)) + goto reschedule; + + /* Set up a new set of temp-adjusted TxPowers, send to NIC. + * This is based *only* on current temperature, + * ignoring any previous power measurements */ + il3945_hw_reg_comp_txpower_temp(il); + +reschedule: + queue_delayed_work(il->workqueue, &il->_3945.thermal_periodic, + REG_RECALIB_PERIOD * HZ); +} + +static void +il3945_bg_reg_txpower_periodic(struct work_struct *work) +{ + struct il_priv *il = container_of(work, struct il_priv, + _3945.thermal_periodic.work); + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + mutex_lock(&il->mutex); + il3945_reg_txpower_periodic(il); + mutex_unlock(&il->mutex); +} + +/** + * il3945_hw_reg_get_ch_grp_idx - find the channel-group idx (0-4) for channel. + * + * This function is used when initializing channel-info structs. + * + * NOTE: These channel groups do *NOT* match the bands above! + * These channel groups are based on factory-tested channels; + * on A-band, EEPROM's "group frequency" entries represent the top + * channel in each group 1-4. Group 5 All B/G channels are in group 0. + */ +static u16 +il3945_hw_reg_get_ch_grp_idx(struct il_priv *il, + const struct il_channel_info *ch_info) +{ + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + struct il3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0]; + u8 group; + u16 group_idx = 0; /* based on factory calib frequencies */ + u8 grp_channel; + + /* Find the group idx for the channel ... don't use idx 1(?) */ + if (il_is_channel_a_band(ch_info)) { + for (group = 1; group < 5; group++) { + grp_channel = ch_grp[group].group_channel; + if (ch_info->channel <= grp_channel) { + group_idx = group; + break; + } + } + /* group 4 has a few channels *above* its factory cal freq */ + if (group == 5) + group_idx = 4; + } else + group_idx = 0; /* 2.4 GHz, group 0 */ + + D_POWER("Chnl %d mapped to grp %d\n", ch_info->channel, group_idx); + return group_idx; +} + +/** + * il3945_hw_reg_get_matched_power_idx - Interpolate to get nominal idx + * + * Interpolate to get nominal (i.e. at factory calibration temperature) idx + * into radio/DSP gain settings table for requested power. + */ +static int +il3945_hw_reg_get_matched_power_idx(struct il_priv *il, s8 requested_power, + s32 setting_idx, s32 *new_idx) +{ + const struct il3945_eeprom_txpower_group *chnl_grp = NULL; + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + s32 idx0, idx1; + s32 power = 2 * requested_power; + s32 i; + const struct il3945_eeprom_txpower_sample *samples; + s32 gains0, gains1; + s32 res; + s32 denominator; + + chnl_grp = &eeprom->groups[setting_idx]; + samples = chnl_grp->samples; + for (i = 0; i < 5; i++) { + if (power == samples[i].power) { + *new_idx = samples[i].gain_idx; + return 0; + } + } + + if (power > samples[1].power) { + idx0 = 0; + idx1 = 1; + } else if (power > samples[2].power) { + idx0 = 1; + idx1 = 2; + } else if (power > samples[3].power) { + idx0 = 2; + idx1 = 3; + } else { + idx0 = 3; + idx1 = 4; + } + + denominator = (s32) samples[idx1].power - (s32) samples[idx0].power; + if (denominator == 0) + return -EINVAL; + gains0 = (s32) samples[idx0].gain_idx * (1 << 19); + gains1 = (s32) samples[idx1].gain_idx * (1 << 19); + res = + gains0 + (gains1 - gains0) * ((s32) power - + (s32) samples[idx0].power) / + denominator + (1 << 18); + *new_idx = res >> 19; + return 0; +} + +static void +il3945_hw_reg_init_channel_groups(struct il_priv *il) +{ + u32 i; + s32 rate_idx; + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + const struct il3945_eeprom_txpower_group *group; + + D_POWER("Initializing factory calib info from EEPROM\n"); + + for (i = 0; i < IL_NUM_TX_CALIB_GROUPS; i++) { + s8 *clip_pwrs; /* table of power levels for each rate */ + s8 satur_pwr; /* saturation power for each chnl group */ + group = &eeprom->groups[i]; + + /* sanity check on factory saturation power value */ + if (group->saturation_power < 40) { + IL_WARN("Error: saturation power is %d, " + "less than minimum expected 40\n", + group->saturation_power); + return; + } + + /* + * Derive requested power levels for each rate, based on + * hardware capabilities (saturation power for band). + * Basic value is 3dB down from saturation, with further + * power reductions for highest 3 data rates. These + * backoffs provide headroom for high rate modulation + * power peaks, without too much distortion (clipping). + */ + /* we'll fill in this array with h/w max power levels */ + clip_pwrs = (s8 *) il->_3945.clip_groups[i].clip_powers; + + /* divide factory saturation power by 2 to find -3dB level */ + satur_pwr = (s8) (group->saturation_power >> 1); + + /* fill in channel group's nominal powers for each rate */ + for (rate_idx = 0; rate_idx < RATE_COUNT_3945; + rate_idx++, clip_pwrs++) { + switch (rate_idx) { + case RATE_36M_IDX_TBL: + if (i == 0) /* B/G */ + *clip_pwrs = satur_pwr; + else /* A */ + *clip_pwrs = satur_pwr - 5; + break; + case RATE_48M_IDX_TBL: + if (i == 0) + *clip_pwrs = satur_pwr - 7; + else + *clip_pwrs = satur_pwr - 10; + break; + case RATE_54M_IDX_TBL: + if (i == 0) + *clip_pwrs = satur_pwr - 9; + else + *clip_pwrs = satur_pwr - 12; + break; + default: + *clip_pwrs = satur_pwr; + break; + } + } + } +} + +/** + * il3945_txpower_set_from_eeprom - Set channel power info based on EEPROM + * + * Second pass (during init) to set up il->channel_info + * + * Set up Tx-power settings in our channel info database for each VALID + * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values + * and current temperature. + * + * Since this is based on current temperature (at init time), these values may + * not be valid for very long, but it gives us a starting/default point, + * and allows us to active (i.e. using Tx) scan. + * + * This does *not* write values to NIC, just sets up our internal table. + */ +int +il3945_txpower_set_from_eeprom(struct il_priv *il) +{ + struct il_channel_info *ch_info = NULL; + struct il3945_channel_power_info *pwr_info; + struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; + int delta_idx; + u8 rate_idx; + u8 scan_tbl_idx; + const s8 *clip_pwrs; /* array of power levels for each rate */ + u8 gain, dsp_atten; + s8 power; + u8 pwr_idx, base_pwr_idx, a_band; + u8 i; + int temperature; + + /* save temperature reference, + * so we can determine next time to calibrate */ + temperature = il3945_hw_reg_txpower_get_temperature(il); + il->last_temperature = temperature; + + il3945_hw_reg_init_channel_groups(il); + + /* initialize Tx power info for each and every channel, 2.4 and 5.x */ + for (i = 0, ch_info = il->channel_info; i < il->channel_count; + i++, ch_info++) { + a_band = il_is_channel_a_band(ch_info); + if (!il_is_channel_valid(ch_info)) + continue; + + /* find this channel's channel group (*not* "band") idx */ + ch_info->group_idx = il3945_hw_reg_get_ch_grp_idx(il, ch_info); + + /* Get this chnlgrp's rate->max/clip-powers table */ + clip_pwrs = + il->_3945.clip_groups[ch_info->group_idx].clip_powers; + + /* calculate power idx *adjustment* value according to + * diff between current temperature and factory temperature */ + delta_idx = + il3945_hw_reg_adjust_power_by_temp(temperature, + eeprom->groups[ch_info-> + group_idx]. + temperature); + + D_POWER("Delta idx for channel %d: %d [%d]\n", ch_info->channel, + delta_idx, temperature + IL_TEMP_CONVERT); + + /* set tx power value for all OFDM rates */ + for (rate_idx = 0; rate_idx < IL_OFDM_RATES; rate_idx++) { + s32 uninitialized_var(power_idx); + int rc; + + /* use channel group's clip-power table, + * but don't exceed channel's max power */ + s8 pwr = min(ch_info->max_power_avg, + clip_pwrs[rate_idx]); + + pwr_info = &ch_info->power_info[rate_idx]; + + /* get base (i.e. at factory-measured temperature) + * power table idx for this rate's power */ + rc = il3945_hw_reg_get_matched_power_idx(il, pwr, + ch_info-> + group_idx, + &power_idx); + if (rc) { + IL_ERR("Invalid power idx\n"); + return rc; + } + pwr_info->base_power_idx = (u8) power_idx; + + /* temperature compensate */ + power_idx += delta_idx; + + /* stay within range of gain table */ + power_idx = il3945_hw_reg_fix_power_idx(power_idx); + + /* fill 1 OFDM rate's il3945_channel_power_info struct */ + pwr_info->requested_power = pwr; + pwr_info->power_table_idx = (u8) power_idx; + pwr_info->tpc.tx_gain = + power_gain_table[a_band][power_idx].tx_gain; + pwr_info->tpc.dsp_atten = + power_gain_table[a_band][power_idx].dsp_atten; + } + + /* set tx power for CCK rates, based on OFDM 12 Mbit settings */ + pwr_info = &ch_info->power_info[RATE_12M_IDX_TBL]; + power = pwr_info->requested_power + IL_CCK_FROM_OFDM_POWER_DIFF; + pwr_idx = pwr_info->power_table_idx + IL_CCK_FROM_OFDM_IDX_DIFF; + base_pwr_idx = + pwr_info->base_power_idx + IL_CCK_FROM_OFDM_IDX_DIFF; + + /* stay within table range */ + pwr_idx = il3945_hw_reg_fix_power_idx(pwr_idx); + gain = power_gain_table[a_band][pwr_idx].tx_gain; + dsp_atten = power_gain_table[a_band][pwr_idx].dsp_atten; + + /* fill each CCK rate's il3945_channel_power_info structure + * NOTE: All CCK-rate Txpwrs are the same for a given chnl! + * NOTE: CCK rates start at end of OFDM rates! */ + for (rate_idx = 0; rate_idx < IL_CCK_RATES; rate_idx++) { + pwr_info = + &ch_info->power_info[rate_idx + IL_OFDM_RATES]; + pwr_info->requested_power = power; + pwr_info->power_table_idx = pwr_idx; + pwr_info->base_power_idx = base_pwr_idx; + pwr_info->tpc.tx_gain = gain; + pwr_info->tpc.dsp_atten = dsp_atten; + } + + /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ + for (scan_tbl_idx = 0; scan_tbl_idx < IL_NUM_SCAN_RATES; + scan_tbl_idx++) { + s32 actual_idx = + (scan_tbl_idx == + 0) ? RATE_1M_IDX_TBL : RATE_6M_IDX_TBL; + il3945_hw_reg_set_scan_power(il, scan_tbl_idx, + actual_idx, clip_pwrs, + ch_info, a_band); + } + } + + return 0; +} + +int +il3945_hw_rxq_stop(struct il_priv *il) +{ + int rc; + + il_wr(il, FH39_RCSR_CONFIG(0), 0); + rc = il_poll_bit(il, FH39_RSSR_STATUS, + FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); + if (rc < 0) + IL_ERR("Can't stop Rx DMA.\n"); + + return 0; +} + +int +il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq) +{ + int txq_id = txq->q.id; + + struct il3945_shared *shared_data = il->_3945.shared_virt; + + shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32) txq->q.dma_addr); + + il_wr(il, FH39_CBCC_CTRL(txq_id), 0); + il_wr(il, FH39_CBCC_BASE(txq_id), 0); + + il_wr(il, FH39_TCSR_CONFIG(txq_id), + FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT | + FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF | + FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD | + FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL | + FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE); + + /* fake read to flush all prev. writes */ + _il_rd(il, FH39_TSSR_CBB_BASE); + + return 0; +} + +/* + * HCMD utils + */ +static u16 +il3945_get_hcmd_size(u8 cmd_id, u16 len) +{ + switch (cmd_id) { + case C_RXON: + return sizeof(struct il3945_rxon_cmd); + case C_POWER_TBL: + return sizeof(struct il3945_powertable_cmd); + default: + return len; + } +} + +static u16 +il3945_build_addsta_hcmd(const struct il_addsta_cmd *cmd, u8 * data) +{ + struct il3945_addsta_cmd *addsta = (struct il3945_addsta_cmd *)data; + addsta->mode = cmd->mode; + memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify)); + memcpy(&addsta->key, &cmd->key, sizeof(struct il4965_keyinfo)); + addsta->station_flags = cmd->station_flags; + addsta->station_flags_msk = cmd->station_flags_msk; + addsta->tid_disable_tx = cpu_to_le16(0); + addsta->rate_n_flags = cmd->rate_n_flags; + addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid; + addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid; + addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn; + + return (u16) sizeof(struct il3945_addsta_cmd); +} + +static int +il3945_add_bssid_station(struct il_priv *il, const u8 * addr, u8 * sta_id_r) +{ + struct il_rxon_context *ctx = &il->ctx; + int ret; + u8 sta_id; + unsigned long flags; + + if (sta_id_r) + *sta_id_r = IL_INVALID_STATION; + + ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id); + if (ret) { + IL_ERR("Unable to add station %pM\n", addr); + return ret; + } + + if (sta_id_r) + *sta_id_r = sta_id; + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].used |= IL_STA_LOCAL; + spin_unlock_irqrestore(&il->sta_lock, flags); + + return 0; +} + +static int +il3945_manage_ibss_station(struct il_priv *il, struct ieee80211_vif *vif, + bool add) +{ + struct il_vif_priv *vif_priv = (void *)vif->drv_priv; + int ret; + + if (add) { + ret = + il3945_add_bssid_station(il, vif->bss_conf.bssid, + &vif_priv->ibss_bssid_sta_id); + if (ret) + return ret; + + il3945_sync_sta(il, vif_priv->ibss_bssid_sta_id, + (il->band == + IEEE80211_BAND_5GHZ) ? RATE_6M_PLCP : + RATE_1M_PLCP); + il3945_rate_scale_init(il->hw, vif_priv->ibss_bssid_sta_id); + + return 0; + } + + return il_remove_station(il, vif_priv->ibss_bssid_sta_id, + vif->bss_conf.bssid); +} + +/** + * il3945_init_hw_rate_table - Initialize the hardware rate fallback table + */ +int +il3945_init_hw_rate_table(struct il_priv *il) +{ + int rc, i, idx, prev_idx; + struct il3945_rate_scaling_cmd rate_cmd = { + .reserved = {0, 0, 0}, + }; + struct il3945_rate_scaling_info *table = rate_cmd.table; + + for (i = 0; i < ARRAY_SIZE(il3945_rates); i++) { + idx = il3945_rates[i].table_rs_idx; + + table[idx].rate_n_flags = + il3945_hw_set_rate_n_flags(il3945_rates[i].plcp, 0); + table[idx].try_cnt = il->retry_rate; + prev_idx = il3945_get_prev_ieee_rate(i); + table[idx].next_rate_idx = il3945_rates[prev_idx].table_rs_idx; + } + + switch (il->band) { + case IEEE80211_BAND_5GHZ: + D_RATE("Select A mode rate scale\n"); + /* If one of the following CCK rates is used, + * have it fall back to the 6M OFDM rate */ + for (i = RATE_1M_IDX_TBL; i <= RATE_11M_IDX_TBL; i++) + table[i].next_rate_idx = + il3945_rates[IL_FIRST_OFDM_RATE].table_rs_idx; + + /* Don't fall back to CCK rates */ + table[RATE_12M_IDX_TBL].next_rate_idx = RATE_9M_IDX_TBL; + + /* Don't drop out of OFDM rates */ + table[RATE_6M_IDX_TBL].next_rate_idx = + il3945_rates[IL_FIRST_OFDM_RATE].table_rs_idx; + break; + + case IEEE80211_BAND_2GHZ: + D_RATE("Select B/G mode rate scale\n"); + /* If an OFDM rate is used, have it fall back to the + * 1M CCK rates */ + + if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) && + il_is_associated(il)) { + + idx = IL_FIRST_CCK_RATE; + for (i = RATE_6M_IDX_TBL; i <= RATE_54M_IDX_TBL; i++) + table[i].next_rate_idx = + il3945_rates[idx].table_rs_idx; + + idx = RATE_11M_IDX_TBL; + /* CCK shouldn't fall back to OFDM... */ + table[idx].next_rate_idx = RATE_5M_IDX_TBL; + } + break; + + default: + WARN_ON(1); + break; + } + + /* Update the rate scaling for control frame Tx */ + rate_cmd.table_id = 0; + rc = il_send_cmd_pdu(il, C_RATE_SCALE, sizeof(rate_cmd), &rate_cmd); + if (rc) + return rc; + + /* Update the rate scaling for data frame Tx */ + rate_cmd.table_id = 1; + return il_send_cmd_pdu(il, C_RATE_SCALE, sizeof(rate_cmd), &rate_cmd); +} + +/* Called when initializing driver */ +int +il3945_hw_set_hw_params(struct il_priv *il) +{ + memset((void *)&il->hw_params, 0, sizeof(struct il_hw_params)); + + il->_3945.shared_virt = + dma_alloc_coherent(&il->pci_dev->dev, sizeof(struct il3945_shared), + &il->_3945.shared_phys, GFP_KERNEL); + if (!il->_3945.shared_virt) { + IL_ERR("failed to allocate pci memory\n"); + return -ENOMEM; + } + + /* Assign number of Usable TX queues */ + il->hw_params.max_txq_num = il->cfg->base_params->num_of_queues; + + il->hw_params.tfd_size = sizeof(struct il3945_tfd); + il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_3K); + il->hw_params.max_rxq_size = RX_QUEUE_SIZE; + il->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; + il->hw_params.max_stations = IL3945_STATION_COUNT; + il->ctx.bcast_sta_id = IL3945_BROADCAST_ID; + + il->sta_key_max_num = STA_KEY_MAX_NUM; + + il->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR; + il->hw_params.max_beacon_itrvl = IL39_MAX_UCODE_BEACON_INTERVAL; + il->hw_params.beacon_time_tsf_bits = IL3945_EXT_BEACON_TIME_POS; + + return 0; +} + +unsigned int +il3945_hw_get_beacon_cmd(struct il_priv *il, struct il3945_frame *frame, + u8 rate) +{ + struct il3945_tx_beacon_cmd *tx_beacon_cmd; + unsigned int frame_size; + + tx_beacon_cmd = (struct il3945_tx_beacon_cmd *)&frame->u; + memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); + + tx_beacon_cmd->tx.sta_id = il->ctx.bcast_sta_id; + tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + + frame_size = + il3945_fill_beacon_frame(il, tx_beacon_cmd->frame, + sizeof(frame->u) - sizeof(*tx_beacon_cmd)); + + BUG_ON(frame_size > MAX_MPDU_SIZE); + tx_beacon_cmd->tx.len = cpu_to_le16((u16) frame_size); + + tx_beacon_cmd->tx.rate = rate; + tx_beacon_cmd->tx.tx_flags = + (TX_CMD_FLG_SEQ_CTL_MSK | TX_CMD_FLG_TSF_MSK); + + /* supp_rates[0] == OFDM start at IL_FIRST_OFDM_RATE */ + tx_beacon_cmd->tx.supp_rates[0] = + (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF; + + tx_beacon_cmd->tx.supp_rates[1] = (IL_CCK_BASIC_RATES_MASK & 0xF); + + return sizeof(struct il3945_tx_beacon_cmd) + frame_size; +} + +void +il3945_hw_handler_setup(struct il_priv *il) +{ + il->handlers[C_TX] = il3945_hdl_tx; + il->handlers[N_3945_RX] = il3945_hdl_rx; +} + +void +il3945_hw_setup_deferred_work(struct il_priv *il) +{ + INIT_DELAYED_WORK(&il->_3945.thermal_periodic, + il3945_bg_reg_txpower_periodic); +} + +void +il3945_hw_cancel_deferred_work(struct il_priv *il) +{ + cancel_delayed_work(&il->_3945.thermal_periodic); +} + +/* check contents of special bootstrap uCode SRAM */ +static int +il3945_verify_bsm(struct il_priv *il) +{ + __le32 *image = il->ucode_boot.v_addr; + u32 len = il->ucode_boot.len; + u32 reg; + u32 val; + + D_INFO("Begin verify bsm\n"); + + /* verify BSM SRAM contents */ + val = il_rd_prph(il, BSM_WR_DWCOUNT_REG); + for (reg = BSM_SRAM_LOWER_BOUND; reg < BSM_SRAM_LOWER_BOUND + len; + reg += sizeof(u32), image++) { + val = il_rd_prph(il, reg); + if (val != le32_to_cpu(*image)) { + IL_ERR("BSM uCode verification failed at " + "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", + BSM_SRAM_LOWER_BOUND, reg - BSM_SRAM_LOWER_BOUND, + len, val, le32_to_cpu(*image)); + return -EIO; + } + } + + D_INFO("BSM bootstrap uCode image OK\n"); + + return 0; +} + +/****************************************************************************** + * + * EEPROM related functions + * + ******************************************************************************/ + +/* + * Clear the OWNER_MSK, to establish driver (instead of uCode running on + * embedded controller) as EEPROM reader; each read is a series of pulses + * to/from the EEPROM chip, not a single event, so even reads could conflict + * if they weren't arbitrated by some ownership mechanism. Here, the driver + * simply claims ownership, which should be safe when this function is called + * (i.e. before loading uCode!). + */ +static int +il3945_eeprom_acquire_semaphore(struct il_priv *il) +{ + _il_clear_bit(il, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); + return 0; +} + +static void +il3945_eeprom_release_semaphore(struct il_priv *il) +{ + return; +} + + /** + * il3945_load_bsm - Load bootstrap instructions + * + * BSM operation: + * + * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program + * in special SRAM that does not power down during RFKILL. When powering back + * up after power-saving sleeps (or during initial uCode load), the BSM loads + * the bootstrap program into the on-board processor, and starts it. + * + * The bootstrap program loads (via DMA) instructions and data for a new + * program from host DRAM locations indicated by the host driver in the + * BSM_DRAM_* registers. Once the new program is loaded, it starts + * automatically. + * + * When initializing the NIC, the host driver points the BSM to the + * "initialize" uCode image. This uCode sets up some internal data, then + * notifies host via "initialize alive" that it is complete. + * + * The host then replaces the BSM_DRAM_* pointer values to point to the + * normal runtime uCode instructions and a backup uCode data cache buffer + * (filled initially with starting data values for the on-board processor), + * then triggers the "initialize" uCode to load and launch the runtime uCode, + * which begins normal operation. + * + * When doing a power-save shutdown, runtime uCode saves data SRAM into + * the backup data cache in DRAM before SRAM is powered down. + * + * When powering back up, the BSM loads the bootstrap program. This reloads + * the runtime uCode instructions and the backup data cache into SRAM, + * and re-launches the runtime uCode from where it left off. + */ +static int +il3945_load_bsm(struct il_priv *il) +{ + __le32 *image = il->ucode_boot.v_addr; + u32 len = il->ucode_boot.len; + dma_addr_t pinst; + dma_addr_t pdata; + u32 inst_len; + u32 data_len; + int rc; + int i; + u32 done; + u32 reg_offset; + + D_INFO("Begin load bsm\n"); + + /* make sure bootstrap program is no larger than BSM's SRAM size */ + if (len > IL39_MAX_BSM_SIZE) + return -EINVAL; + + /* Tell bootstrap uCode where to find the "Initialize" uCode + * in host DRAM ... host DRAM physical address bits 31:0 for 3945. + * NOTE: il3945_initialize_alive_start() will replace these values, + * after the "initialize" uCode has run, to point to + * runtime/protocol instructions and backup data cache. */ + pinst = il->ucode_init.p_addr; + pdata = il->ucode_init_data.p_addr; + inst_len = il->ucode_init.len; + data_len = il->ucode_init_data.len; + + il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); + il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); + il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); + il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); + + /* Fill BSM memory with bootstrap instructions */ + for (reg_offset = BSM_SRAM_LOWER_BOUND; + reg_offset < BSM_SRAM_LOWER_BOUND + len; + reg_offset += sizeof(u32), image++) + _il_wr_prph(il, reg_offset, le32_to_cpu(*image)); + + rc = il3945_verify_bsm(il); + if (rc) + return rc; + + /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ + il_wr_prph(il, BSM_WR_MEM_SRC_REG, 0x0); + il_wr_prph(il, BSM_WR_MEM_DST_REG, IL39_RTC_INST_LOWER_BOUND); + il_wr_prph(il, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); + + /* Load bootstrap code into instruction SRAM now, + * to prepare to load "initialize" uCode */ + il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START); + + /* Wait for load of bootstrap uCode to finish */ + for (i = 0; i < 100; i++) { + done = il_rd_prph(il, BSM_WR_CTRL_REG); + if (!(done & BSM_WR_CTRL_REG_BIT_START)) + break; + udelay(10); + } + if (i < 100) + D_INFO("BSM write complete, poll %d iterations\n", i); + else { + IL_ERR("BSM write did not complete!\n"); + return -EIO; + } + + /* Enable future boot loads whenever power management unit triggers it + * (e.g. when powering back up after power-save shutdown) */ + il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN); + + return 0; +} + +static struct il_hcmd_ops il3945_hcmd = { + .rxon_assoc = il3945_send_rxon_assoc, + .commit_rxon = il3945_commit_rxon, +}; + +static struct il_lib_ops il3945_lib = { + .txq_attach_buf_to_tfd = il3945_hw_txq_attach_buf_to_tfd, + .txq_free_tfd = il3945_hw_txq_free_tfd, + .txq_init = il3945_hw_tx_queue_init, + .load_ucode = il3945_load_bsm, + .dump_nic_error_log = il3945_dump_nic_error_log, + .apm_ops = { + .init = il3945_apm_init, + .config = il3945_nic_config, + }, + .eeprom_ops = { + .regulatory_bands = { + EEPROM_REGULATORY_BAND_1_CHANNELS, + EEPROM_REGULATORY_BAND_2_CHANNELS, + EEPROM_REGULATORY_BAND_3_CHANNELS, + EEPROM_REGULATORY_BAND_4_CHANNELS, + EEPROM_REGULATORY_BAND_5_CHANNELS, + EEPROM_REGULATORY_BAND_NO_HT40, + EEPROM_REGULATORY_BAND_NO_HT40, + }, + .acquire_semaphore = il3945_eeprom_acquire_semaphore, + .release_semaphore = il3945_eeprom_release_semaphore, + }, + .send_tx_power = il3945_send_tx_power, + .is_valid_rtc_data_addr = il3945_hw_valid_rtc_data_addr, + +#ifdef CONFIG_IWLEGACY_DEBUGFS + .debugfs_ops = { + .rx_stats_read = il3945_ucode_rx_stats_read, + .tx_stats_read = il3945_ucode_tx_stats_read, + .general_stats_read = il3945_ucode_general_stats_read, + }, +#endif +}; + +static const struct il_legacy_ops il3945_legacy_ops = { + .post_associate = il3945_post_associate, + .config_ap = il3945_config_ap, + .manage_ibss_station = il3945_manage_ibss_station, +}; + +static struct il_hcmd_utils_ops il3945_hcmd_utils = { + .get_hcmd_size = il3945_get_hcmd_size, + .build_addsta_hcmd = il3945_build_addsta_hcmd, + .request_scan = il3945_request_scan, + .post_scan = il3945_post_scan, +}; + +static const struct il_ops il3945_ops = { + .lib = &il3945_lib, + .hcmd = &il3945_hcmd, + .utils = &il3945_hcmd_utils, + .led = &il3945_led_ops, + .legacy = &il3945_legacy_ops, + .ieee80211_ops = &il3945_hw_ops, +}; + +static struct il_base_params il3945_base_params = { + .eeprom_size = IL3945_EEPROM_IMG_SIZE, + .num_of_queues = IL39_NUM_QUEUES, + .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL, + .set_l0s = false, + .use_bsm = true, + .led_compensation = 64, + .wd_timeout = IL_DEF_WD_TIMEOUT, +}; + +static struct il_cfg il3945_bg_cfg = { + .name = "3945BG", + .fw_name_pre = IL3945_FW_PRE, + .ucode_api_max = IL3945_UCODE_API_MAX, + .ucode_api_min = IL3945_UCODE_API_MIN, + .sku = IL_SKU_G, + .eeprom_ver = EEPROM_3945_EEPROM_VERSION, + .ops = &il3945_ops, + .mod_params = &il3945_mod_params, + .base_params = &il3945_base_params, + .led_mode = IL_LED_BLINK, +}; + +static struct il_cfg il3945_abg_cfg = { + .name = "3945ABG", + .fw_name_pre = IL3945_FW_PRE, + .ucode_api_max = IL3945_UCODE_API_MAX, + .ucode_api_min = IL3945_UCODE_API_MIN, + .sku = IL_SKU_A | IL_SKU_G, + .eeprom_ver = EEPROM_3945_EEPROM_VERSION, + .ops = &il3945_ops, + .mod_params = &il3945_mod_params, + .base_params = &il3945_base_params, + .led_mode = IL_LED_BLINK, +}; + +DEFINE_PCI_DEVICE_TABLE(il3945_hw_card_ids) = { + {IL_PCI_DEVICE(0x4222, 0x1005, il3945_bg_cfg)}, + {IL_PCI_DEVICE(0x4222, 0x1034, il3945_bg_cfg)}, + {IL_PCI_DEVICE(0x4222, 0x1044, il3945_bg_cfg)}, + {IL_PCI_DEVICE(0x4227, 0x1014, il3945_bg_cfg)}, + {IL_PCI_DEVICE(0x4222, PCI_ANY_ID, il3945_abg_cfg)}, + {IL_PCI_DEVICE(0x4227, PCI_ANY_ID, il3945_abg_cfg)}, + {0} +}; + +MODULE_DEVICE_TABLE(pci, il3945_hw_card_ids); diff --git a/drivers/net/wireless/iwlegacy/3945.h b/drivers/net/wireless/iwlegacy/3945.h new file mode 100644 index 000000000000..2b2895c544d7 --- /dev/null +++ b/drivers/net/wireless/iwlegacy/3945.h @@ -0,0 +1,626 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#ifndef __il_3945_h__ +#define __il_3945_h__ + +#include <linux/pci.h> /* for struct pci_device_id */ +#include <linux/kernel.h> +#include <net/ieee80211_radiotap.h> + +/* Hardware specific file defines the PCI IDs table for that hardware module */ +extern const struct pci_device_id il3945_hw_card_ids[]; + +#include "common.h" + +/* Highest firmware API version supported */ +#define IL3945_UCODE_API_MAX 2 + +/* Lowest firmware API version supported */ +#define IL3945_UCODE_API_MIN 1 + +#define IL3945_FW_PRE "iwlwifi-3945-" +#define _IL3945_MODULE_FIRMWARE(api) IL3945_FW_PRE #api ".ucode" +#define IL3945_MODULE_FIRMWARE(api) _IL3945_MODULE_FIRMWARE(api) + +/* Default noise level to report when noise measurement is not available. + * This may be because we're: + * 1) Not associated (4965, no beacon stats being sent to driver) + * 2) Scanning (noise measurement does not apply to associated channel) + * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) + * Use default noise value of -127 ... this is below the range of measurable + * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. + * Also, -127 works better than 0 when averaging frames with/without + * noise info (e.g. averaging might be done in app); measured dBm values are + * always negative ... using a negative value as the default keeps all + * averages within an s8's (used in some apps) range of negative values. */ +#define IL_NOISE_MEAS_NOT_AVAILABLE (-127) + +/* Module parameters accessible from iwl-*.c */ +extern struct il_mod_params il3945_mod_params; + +struct il3945_rate_scale_data { + u64 data; + s32 success_counter; + s32 success_ratio; + s32 counter; + s32 average_tpt; + unsigned long stamp; +}; + +struct il3945_rs_sta { + spinlock_t lock; + struct il_priv *il; + s32 *expected_tpt; + unsigned long last_partial_flush; + unsigned long last_flush; + u32 flush_time; + u32 last_tx_packets; + u32 tx_packets; + u8 tgg; + u8 flush_pending; + u8 start_rate; + struct timer_list rate_scale_flush; + struct il3945_rate_scale_data win[RATE_COUNT_3945]; +#ifdef CONFIG_MAC80211_DEBUGFS + struct dentry *rs_sta_dbgfs_stats_table_file; +#endif + + /* used to be in sta_info */ + int last_txrate_idx; +}; + +/* + * The common struct MUST be first because it is shared between + * 3945 and 4965! + */ +struct il3945_sta_priv { + struct il_station_priv_common common; + struct il3945_rs_sta rs_sta; +}; + +enum il3945_antenna { + IL_ANTENNA_DIVERSITY, + IL_ANTENNA_MAIN, + IL_ANTENNA_AUX +}; + +/* + * RTS threshold here is total size [2347] minus 4 FCS bytes + * Per spec: + * a value of 0 means RTS on all data/management packets + * a value > max MSDU size means no RTS + * else RTS for data/management frames where MPDU is larger + * than RTS value. + */ +#define DEFAULT_RTS_THRESHOLD 2347U +#define MIN_RTS_THRESHOLD 0U +#define MAX_RTS_THRESHOLD 2347U +#define MAX_MSDU_SIZE 2304U +#define MAX_MPDU_SIZE 2346U +#define DEFAULT_BEACON_INTERVAL 100U +#define DEFAULT_SHORT_RETRY_LIMIT 7U +#define DEFAULT_LONG_RETRY_LIMIT 4U + +#define IL_TX_FIFO_AC0 0 +#define IL_TX_FIFO_AC1 1 +#define IL_TX_FIFO_AC2 2 +#define IL_TX_FIFO_AC3 3 +#define IL_TX_FIFO_HCCA_1 5 +#define IL_TX_FIFO_HCCA_2 6 +#define IL_TX_FIFO_NONE 7 + +#define IEEE80211_DATA_LEN 2304 +#define IEEE80211_4ADDR_LEN 30 +#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) +#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) + +struct il3945_frame { + union { + struct ieee80211_hdr frame; + struct il3945_tx_beacon_cmd beacon; + u8 raw[IEEE80211_FRAME_LEN]; + u8 cmd[360]; + } u; + struct list_head list; +}; + +#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) +#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) +#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) + +#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 +#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 +#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 + +#define IL_SUPPORTED_RATES_IE_LEN 8 + +#define SCAN_INTERVAL 100 + +#define MAX_TID_COUNT 9 + +#define IL_INVALID_RATE 0xFF +#define IL_INVALID_VALUE -1 + +#define STA_PS_STATUS_WAKE 0 +#define STA_PS_STATUS_SLEEP 1 + +struct il3945_ibss_seq { + u8 mac[ETH_ALEN]; + u16 seq_num; + u16 frag_num; + unsigned long packet_time; + struct list_head list; +}; + +#define IL_RX_HDR(x) ((struct il3945_rx_frame_hdr *)(\ + x->u.rx_frame.stats.payload + \ + x->u.rx_frame.stats.phy_count)) +#define IL_RX_END(x) ((struct il3945_rx_frame_end *)(\ + IL_RX_HDR(x)->payload + \ + le16_to_cpu(IL_RX_HDR(x)->len))) +#define IL_RX_STATS(x) (&x->u.rx_frame.stats) +#define IL_RX_DATA(x) (IL_RX_HDR(x)->payload) + +/****************************************************************************** + * + * Functions implemented in iwl3945-base.c which are forward declared here + * for use by iwl-*.c + * + *****************************************************************************/ +extern int il3945_calc_db_from_ratio(int sig_ratio); +extern void il3945_rx_replenish(void *data); +extern void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq); +extern unsigned int il3945_fill_beacon_frame(struct il_priv *il, + struct ieee80211_hdr *hdr, + int left); +extern int il3945_dump_nic_event_log(struct il_priv *il, bool full_log, + char **buf, bool display); +extern void il3945_dump_nic_error_log(struct il_priv *il); + +/****************************************************************************** + * + * Functions implemented in iwl-[34]*.c which are forward declared here + * for use by iwl3945-base.c + * + * NOTE: The implementation of these functions are hardware specific + * which is why they are in the hardware specific files (vs. iwl-base.c) + * + * Naming convention -- + * il3945_ <-- Its part of iwlwifi (should be changed to il3945_) + * il3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW) + * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) + * il3945_bg_ <-- Called from work queue context + * il3945_mac_ <-- mac80211 callback + * + ****************************************************************************/ +extern void il3945_hw_handler_setup(struct il_priv *il); +extern void il3945_hw_setup_deferred_work(struct il_priv *il); +extern void il3945_hw_cancel_deferred_work(struct il_priv *il); +extern int il3945_hw_rxq_stop(struct il_priv *il); +extern int il3945_hw_set_hw_params(struct il_priv *il); +extern int il3945_hw_nic_init(struct il_priv *il); +extern int il3945_hw_nic_stop_master(struct il_priv *il); +extern void il3945_hw_txq_ctx_free(struct il_priv *il); +extern void il3945_hw_txq_ctx_stop(struct il_priv *il); +extern int il3945_hw_nic_reset(struct il_priv *il); +extern int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il, + struct il_tx_queue *txq, + dma_addr_t addr, u16 len, u8 reset, + u8 pad); +extern void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq); +extern int il3945_hw_get_temperature(struct il_priv *il); +extern int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq); +extern unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il, + struct il3945_frame *frame, + u8 rate); +void il3945_hw_build_tx_cmd_rate(struct il_priv *il, struct il_device_cmd *cmd, + struct ieee80211_tx_info *info, + struct ieee80211_hdr *hdr, int sta_id, + int tx_id); +extern int il3945_hw_reg_send_txpower(struct il_priv *il); +extern int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power); +extern void il3945_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb); +void il3945_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb); +extern void il3945_disable_events(struct il_priv *il); +extern int il4965_get_temperature(const struct il_priv *il); +extern void il3945_post_associate(struct il_priv *il); +extern void il3945_config_ap(struct il_priv *il); + +extern int il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx); + +/** + * il3945_hw_find_station - Find station id for a given BSSID + * @bssid: MAC address of station ID to find + * + * NOTE: This should not be hardware specific but the code has + * not yet been merged into a single common layer for managing the + * station tables. + */ +extern u8 il3945_hw_find_station(struct il_priv *il, const u8 * bssid); + +extern struct ieee80211_ops il3945_hw_ops; + +extern __le32 il3945_get_antenna_flags(const struct il_priv *il); +extern int il3945_init_hw_rate_table(struct il_priv *il); +extern void il3945_reg_txpower_periodic(struct il_priv *il); +extern int il3945_txpower_set_from_eeprom(struct il_priv *il); + +extern int il3945_rs_next_rate(struct il_priv *il, int rate); + +/* scanning */ +int il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif); +void il3945_post_scan(struct il_priv *il); + +/* rates */ +extern const struct il3945_rate_info il3945_rates[RATE_COUNT_3945]; + +/* RSSI to dBm */ +#define IL39_RSSI_OFFSET 95 + +/* + * EEPROM related constants, enums, and structures. + */ +#define EEPROM_SKU_CAP_OP_MODE_MRC (1 << 7) + +/* + * Mapping of a Tx power level, at factory calibration temperature, + * to a radio/DSP gain table idx. + * One for each of 5 "sample" power levels in each band. + * v_det is measured at the factory, using the 3945's built-in power amplifier + * (PA) output voltage detector. This same detector is used during Tx of + * long packets in normal operation to provide feedback as to proper output + * level. + * Data copied from EEPROM. + * DO NOT ALTER THIS STRUCTURE!!! + */ +struct il3945_eeprom_txpower_sample { + u8 gain_idx; /* idx into power (gain) setup table ... */ + s8 power; /* ... for this pwr level for this chnl group */ + u16 v_det; /* PA output voltage */ +} __packed; + +/* + * Mappings of Tx power levels -> nominal radio/DSP gain table idxes. + * One for each channel group (a.k.a. "band") (1 for BG, 4 for A). + * Tx power setup code interpolates between the 5 "sample" power levels + * to determine the nominal setup for a requested power level. + * Data copied from EEPROM. + * DO NOT ALTER THIS STRUCTURE!!! + */ +struct il3945_eeprom_txpower_group { + struct il3945_eeprom_txpower_sample samples[5]; /* 5 power levels */ + s32 a, b, c, d, e; /* coefficients for voltage->power + * formula (signed) */ + s32 Fa, Fb, Fc, Fd, Fe; /* these modify coeffs based on + * frequency (signed) */ + s8 saturation_power; /* highest power possible by h/w in this + * band */ + u8 group_channel; /* "representative" channel # in this band */ + s16 temperature; /* h/w temperature at factory calib this band + * (signed) */ +} __packed; + +/* + * Temperature-based Tx-power compensation data, not band-specific. + * These coefficients are use to modify a/b/c/d/e coeffs based on + * difference between current temperature and factory calib temperature. + * Data copied from EEPROM. + */ +struct il3945_eeprom_temperature_corr { + u32 Ta; + u32 Tb; + u32 Tc; + u32 Td; + u32 Te; +} __packed; + +/* + * EEPROM map + */ +struct il3945_eeprom { + u8 reserved0[16]; + u16 device_id; /* abs.ofs: 16 */ + u8 reserved1[2]; + u16 pmc; /* abs.ofs: 20 */ + u8 reserved2[20]; + u8 mac_address[6]; /* abs.ofs: 42 */ + u8 reserved3[58]; + u16 board_revision; /* abs.ofs: 106 */ + u8 reserved4[11]; + u8 board_pba_number[9]; /* abs.ofs: 119 */ + u8 reserved5[8]; + u16 version; /* abs.ofs: 136 */ + u8 sku_cap; /* abs.ofs: 138 */ + u8 leds_mode; /* abs.ofs: 139 */ + u16 oem_mode; + u16 wowlan_mode; /* abs.ofs: 142 */ + u16 leds_time_interval; /* abs.ofs: 144 */ + u8 leds_off_time; /* abs.ofs: 146 */ + u8 leds_on_time; /* abs.ofs: 147 */ + u8 almgor_m_version; /* abs.ofs: 148 */ + u8 antenna_switch_type; /* abs.ofs: 149 */ + u8 reserved6[42]; + u8 sku_id[4]; /* abs.ofs: 192 */ + +/* + * Per-channel regulatory data. + * + * Each channel that *might* be supported by 3945 has a fixed location + * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory + * txpower (MSB). + * + * Entries immediately below are for 20 MHz channel width. + * + * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 + */ + u16 band_1_count; /* abs.ofs: 196 */ + struct il_eeprom_channel band_1_channels[14]; /* abs.ofs: 198 */ + +/* + * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196, + * 5.0 GHz channels 7, 8, 11, 12, 16 + * (4915-5080MHz) (none of these is ever supported) + */ + u16 band_2_count; /* abs.ofs: 226 */ + struct il_eeprom_channel band_2_channels[13]; /* abs.ofs: 228 */ + +/* + * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 + * (5170-5320MHz) + */ + u16 band_3_count; /* abs.ofs: 254 */ + struct il_eeprom_channel band_3_channels[12]; /* abs.ofs: 256 */ + +/* + * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 + * (5500-5700MHz) + */ + u16 band_4_count; /* abs.ofs: 280 */ + struct il_eeprom_channel band_4_channels[11]; /* abs.ofs: 282 */ + +/* + * 5.7 GHz channels 145, 149, 153, 157, 161, 165 + * (5725-5825MHz) + */ + u16 band_5_count; /* abs.ofs: 304 */ + struct il_eeprom_channel band_5_channels[6]; /* abs.ofs: 306 */ + + u8 reserved9[194]; + +/* + * 3945 Txpower calibration data. + */ +#define IL_NUM_TX_CALIB_GROUPS 5 + struct il3945_eeprom_txpower_group groups[IL_NUM_TX_CALIB_GROUPS]; +/* abs.ofs: 512 */ + struct il3945_eeprom_temperature_corr corrections; /* abs.ofs: 832 */ + u8 reserved16[172]; /* fill out to full 1024 byte block */ +} __packed; + +#define IL3945_EEPROM_IMG_SIZE 1024 + +/* End of EEPROM */ + +#define PCI_CFG_REV_ID_BIT_BASIC_SKU (0x40) /* bit 6 */ +#define PCI_CFG_REV_ID_BIT_RTP (0x80) /* bit 7 */ + +/* 4 DATA + 1 CMD. There are 2 HCCA queues that are not used. */ +#define IL39_NUM_QUEUES 5 +#define IL39_CMD_QUEUE_NUM 4 + +#define IL_DEFAULT_TX_RETRY 15 + +/*********************************************/ + +#define RFD_SIZE 4 +#define NUM_TFD_CHUNKS 4 + +#define TFD_CTL_COUNT_SET(n) (n << 24) +#define TFD_CTL_COUNT_GET(ctl) ((ctl >> 24) & 7) +#define TFD_CTL_PAD_SET(n) (n << 28) +#define TFD_CTL_PAD_GET(ctl) (ctl >> 28) + +/* Sizes and addresses for instruction and data memory (SRAM) in + * 3945's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */ +#define IL39_RTC_INST_LOWER_BOUND (0x000000) +#define IL39_RTC_INST_UPPER_BOUND (0x014000) + +#define IL39_RTC_DATA_LOWER_BOUND (0x800000) +#define IL39_RTC_DATA_UPPER_BOUND (0x808000) + +#define IL39_RTC_INST_SIZE (IL39_RTC_INST_UPPER_BOUND - \ + IL39_RTC_INST_LOWER_BOUND) +#define IL39_RTC_DATA_SIZE (IL39_RTC_DATA_UPPER_BOUND - \ + IL39_RTC_DATA_LOWER_BOUND) + +#define IL39_MAX_INST_SIZE IL39_RTC_INST_SIZE +#define IL39_MAX_DATA_SIZE IL39_RTC_DATA_SIZE + +/* Size of uCode instruction memory in bootstrap state machine */ +#define IL39_MAX_BSM_SIZE IL39_RTC_INST_SIZE + +static inline int +il3945_hw_valid_rtc_data_addr(u32 addr) +{ + return (addr >= IL39_RTC_DATA_LOWER_BOUND && + addr < IL39_RTC_DATA_UPPER_BOUND); +} + +/* Base physical address of il3945_shared is provided to FH39_TSSR_CBB_BASE + * and &il3945_shared.rx_read_ptr[0] is provided to FH39_RCSR_RPTR_ADDR(0) */ +struct il3945_shared { + __le32 tx_base_ptr[8]; +} __packed; + +static inline u8 +il3945_hw_get_rate(__le16 rate_n_flags) +{ + return le16_to_cpu(rate_n_flags) & 0xFF; +} + +static inline u16 +il3945_hw_get_rate_n_flags(__le16 rate_n_flags) +{ + return le16_to_cpu(rate_n_flags); +} + +static inline __le16 +il3945_hw_set_rate_n_flags(u8 rate, u16 flags) +{ + return cpu_to_le16((u16) rate | flags); +} + +/************************************/ +/* iwl3945 Flow Handler Definitions */ +/************************************/ + +/** + * This I/O area is directly read/writable by driver (e.g. Linux uses writel()) + * Addresses are offsets from device's PCI hardware base address. + */ +#define FH39_MEM_LOWER_BOUND (0x0800) +#define FH39_MEM_UPPER_BOUND (0x1000) + +#define FH39_CBCC_TBL (FH39_MEM_LOWER_BOUND + 0x140) +#define FH39_TFDB_TBL (FH39_MEM_LOWER_BOUND + 0x180) +#define FH39_RCSR_TBL (FH39_MEM_LOWER_BOUND + 0x400) +#define FH39_RSSR_TBL (FH39_MEM_LOWER_BOUND + 0x4c0) +#define FH39_TCSR_TBL (FH39_MEM_LOWER_BOUND + 0x500) +#define FH39_TSSR_TBL (FH39_MEM_LOWER_BOUND + 0x680) + +/* TFDB (Transmit Frame Buffer Descriptor) */ +#define FH39_TFDB(_ch, buf) (FH39_TFDB_TBL + \ + ((_ch) * 2 + (buf)) * 0x28) +#define FH39_TFDB_CHNL_BUF_CTRL_REG(_ch) (FH39_TFDB_TBL + 0x50 * (_ch)) + +/* CBCC channel is [0,2] */ +#define FH39_CBCC(_ch) (FH39_CBCC_TBL + (_ch) * 0x8) +#define FH39_CBCC_CTRL(_ch) (FH39_CBCC(_ch) + 0x00) +#define FH39_CBCC_BASE(_ch) (FH39_CBCC(_ch) + 0x04) + +/* RCSR channel is [0,2] */ +#define FH39_RCSR(_ch) (FH39_RCSR_TBL + (_ch) * 0x40) +#define FH39_RCSR_CONFIG(_ch) (FH39_RCSR(_ch) + 0x00) +#define FH39_RCSR_RBD_BASE(_ch) (FH39_RCSR(_ch) + 0x04) +#define FH39_RCSR_WPTR(_ch) (FH39_RCSR(_ch) + 0x20) +#define FH39_RCSR_RPTR_ADDR(_ch) (FH39_RCSR(_ch) + 0x24) + +#define FH39_RSCSR_CHNL0_WPTR (FH39_RCSR_WPTR(0)) + +/* RSSR */ +#define FH39_RSSR_CTRL (FH39_RSSR_TBL + 0x000) +#define FH39_RSSR_STATUS (FH39_RSSR_TBL + 0x004) + +/* TCSR */ +#define FH39_TCSR(_ch) (FH39_TCSR_TBL + (_ch) * 0x20) +#define FH39_TCSR_CONFIG(_ch) (FH39_TCSR(_ch) + 0x00) +#define FH39_TCSR_CREDIT(_ch) (FH39_TCSR(_ch) + 0x04) +#define FH39_TCSR_BUFF_STTS(_ch) (FH39_TCSR(_ch) + 0x08) + +/* TSSR */ +#define FH39_TSSR_CBB_BASE (FH39_TSSR_TBL + 0x000) +#define FH39_TSSR_MSG_CONFIG (FH39_TSSR_TBL + 0x008) +#define FH39_TSSR_TX_STATUS (FH39_TSSR_TBL + 0x010) + +/* DBM */ + +#define FH39_SRVC_CHNL (6) + +#define FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE (20) +#define FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH (4) + +#define FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN (0x08000000) + +#define FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE (0x80000000) + +#define FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE (0x20000000) + +#define FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 (0x01000000) + +#define FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST (0x00001000) + +#define FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH (0x00000000) + +#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000) +#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER (0x00000001) + +#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL (0x00000000) +#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL (0x00000008) + +#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000) + +#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000) + +#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000) +#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000) + +#define FH39_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00004000) + +#define FH39_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR (0x00000001) + +#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON (0xFF000000) +#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON (0x00FF0000) + +#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B (0x00000400) + +#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON (0x00000100) +#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON (0x00000080) + +#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH (0x00000020) +#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH (0x00000005) + +#define FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) (BIT(_ch) << 24) +#define FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch) (BIT(_ch) << 16) + +#define FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_ch) \ + (FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) | \ + FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch)) + +#define FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000) + +struct il3945_tfd_tb { + __le32 addr; + __le32 len; +} __packed; + +struct il3945_tfd { + __le32 control_flags; + struct il3945_tfd_tb tbs[4]; + u8 __pad[28]; +} __packed; + +#ifdef CONFIG_IWLEGACY_DEBUGFS +ssize_t il3945_ucode_rx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); +ssize_t il3945_ucode_tx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); +ssize_t il3945_ucode_general_stats_read(struct file *file, + char __user *user_buf, size_t count, + loff_t *ppos); +#endif + +#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-calib.c b/drivers/net/wireless/iwlegacy/4965-calib.c index 162d877e6869..d3248e3ef23b 100644 --- a/drivers/net/wireless/iwlegacy/iwl-4965-calib.c +++ b/drivers/net/wireless/iwlegacy/4965-calib.c @@ -63,15 +63,14 @@ #include <linux/slab.h> #include <net/mac80211.h> -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-4965-calib.h" +#include "common.h" +#include "4965.h" /***************************************************************************** * INIT calibrations framework *****************************************************************************/ -struct statistics_general_data { +struct stats_general_data { u32 beacon_silence_rssi_a; u32 beacon_silence_rssi_b; u32 beacon_silence_rssi_c; @@ -80,14 +79,15 @@ struct statistics_general_data { u32 beacon_energy_c; }; -void iwl4965_calib_free_results(struct iwl_priv *priv) +void +il4965_calib_free_results(struct il_priv *il) { int i; - for (i = 0; i < IWL_CALIB_MAX; i++) { - kfree(priv->calib_results[i].buf); - priv->calib_results[i].buf = NULL; - priv->calib_results[i].buf_len = 0; + for (i = 0; i < IL_CALIB_MAX; i++) { + kfree(il->calib_results[i].buf); + il->calib_results[i].buf = NULL; + il->calib_results[i].buf_len = 0; } } @@ -103,10 +103,9 @@ void iwl4965_calib_free_results(struct iwl_priv *priv) * enough to receive all of our own network traffic, but not so * high that our DSP gets too busy trying to lock onto non-network * activity/noise. */ -static int iwl4965_sens_energy_cck(struct iwl_priv *priv, - u32 norm_fa, - u32 rx_enable_time, - struct statistics_general_data *rx_info) +static int +il4965_sens_energy_cck(struct il_priv *il, u32 norm_fa, u32 rx_enable_time, + struct stats_general_data *rx_info) { u32 max_nrg_cck = 0; int i = 0; @@ -129,22 +128,22 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, u32 false_alarms = norm_fa * 200 * 1024; u32 max_false_alarms = MAX_FA_CCK * rx_enable_time; u32 min_false_alarms = MIN_FA_CCK * rx_enable_time; - struct iwl_sensitivity_data *data = NULL; - const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens; + struct il_sensitivity_data *data = NULL; + const struct il_sensitivity_ranges *ranges = il->hw_params.sens; - data = &(priv->sensitivity_data); + data = &(il->sensitivity_data); data->nrg_auto_corr_silence_diff = 0; /* Find max silence rssi among all 3 receivers. * This is background noise, which may include transmissions from other * networks, measured during silence before our network's beacon */ - silence_rssi_a = (u8)((rx_info->beacon_silence_rssi_a & - ALL_BAND_FILTER) >> 8); - silence_rssi_b = (u8)((rx_info->beacon_silence_rssi_b & - ALL_BAND_FILTER) >> 8); - silence_rssi_c = (u8)((rx_info->beacon_silence_rssi_c & - ALL_BAND_FILTER) >> 8); + silence_rssi_a = + (u8) ((rx_info->beacon_silence_rssi_a & ALL_BAND_FILTER) >> 8); + silence_rssi_b = + (u8) ((rx_info->beacon_silence_rssi_b & ALL_BAND_FILTER) >> 8); + silence_rssi_c = + (u8) ((rx_info->beacon_silence_rssi_c & ALL_BAND_FILTER) >> 8); val = max(silence_rssi_b, silence_rssi_c); max_silence_rssi = max(silence_rssi_a, (u8) val); @@ -160,9 +159,8 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, val = data->nrg_silence_rssi[i]; silence_ref = max(silence_ref, val); } - IWL_DEBUG_CALIB(priv, "silence a %u, b %u, c %u, 20-bcn max %u\n", - silence_rssi_a, silence_rssi_b, silence_rssi_c, - silence_ref); + D_CALIB("silence a %u, b %u, c %u, 20-bcn max %u\n", silence_rssi_a, + silence_rssi_b, silence_rssi_c, silence_ref); /* Find max rx energy (min value!) among all 3 receivers, * measured during beacon frame. @@ -184,9 +182,9 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, max_nrg_cck = (u32) max(max_nrg_cck, (data->nrg_value[i])); max_nrg_cck += 6; - IWL_DEBUG_CALIB(priv, "rx energy a %u, b %u, c %u, 10-bcn max/min %u\n", - rx_info->beacon_energy_a, rx_info->beacon_energy_b, - rx_info->beacon_energy_c, max_nrg_cck - 6); + D_CALIB("rx energy a %u, b %u, c %u, 10-bcn max/min %u\n", + rx_info->beacon_energy_a, rx_info->beacon_energy_b, + rx_info->beacon_energy_c, max_nrg_cck - 6); /* Count number of consecutive beacons with fewer-than-desired * false alarms. */ @@ -194,35 +192,34 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, data->num_in_cck_no_fa++; else data->num_in_cck_no_fa = 0; - IWL_DEBUG_CALIB(priv, "consecutive bcns with few false alarms = %u\n", - data->num_in_cck_no_fa); + D_CALIB("consecutive bcns with few false alarms = %u\n", + data->num_in_cck_no_fa); /* If we got too many false alarms this time, reduce sensitivity */ - if ((false_alarms > max_false_alarms) && - (data->auto_corr_cck > AUTO_CORR_MAX_TH_CCK)) { - IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u\n", - false_alarms, max_false_alarms); - IWL_DEBUG_CALIB(priv, "... reducing sensitivity\n"); - data->nrg_curr_state = IWL_FA_TOO_MANY; + if (false_alarms > max_false_alarms && + data->auto_corr_cck > AUTO_CORR_MAX_TH_CCK) { + D_CALIB("norm FA %u > max FA %u\n", false_alarms, + max_false_alarms); + D_CALIB("... reducing sensitivity\n"); + data->nrg_curr_state = IL_FA_TOO_MANY; /* Store for "fewer than desired" on later beacon */ data->nrg_silence_ref = silence_ref; /* increase energy threshold (reduce nrg value) * to decrease sensitivity */ data->nrg_th_cck = data->nrg_th_cck - NRG_STEP_CCK; - /* Else if we got fewer than desired, increase sensitivity */ + /* Else if we got fewer than desired, increase sensitivity */ } else if (false_alarms < min_false_alarms) { - data->nrg_curr_state = IWL_FA_TOO_FEW; + data->nrg_curr_state = IL_FA_TOO_FEW; /* Compare silence level with silence level for most recent * healthy number or too many false alarms */ - data->nrg_auto_corr_silence_diff = (s32)data->nrg_silence_ref - - (s32)silence_ref; + data->nrg_auto_corr_silence_diff = + (s32) data->nrg_silence_ref - (s32) silence_ref; - IWL_DEBUG_CALIB(priv, - "norm FA %u < min FA %u, silence diff %d\n", - false_alarms, min_false_alarms, - data->nrg_auto_corr_silence_diff); + D_CALIB("norm FA %u < min FA %u, silence diff %d\n", + false_alarms, min_false_alarms, + data->nrg_auto_corr_silence_diff); /* Increase value to increase sensitivity, but only if: * 1a) previous beacon did *not* have *too many* false alarms @@ -230,23 +227,22 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, * from a previous beacon with too many, or healthy # FAs * OR 2) We've seen a lot of beacons (100) with too few * false alarms */ - if ((data->nrg_prev_state != IWL_FA_TOO_MANY) && - ((data->nrg_auto_corr_silence_diff > NRG_DIFF) || - (data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA))) { + if (data->nrg_prev_state != IL_FA_TOO_MANY && + (data->nrg_auto_corr_silence_diff > NRG_DIFF || + data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA)) { - IWL_DEBUG_CALIB(priv, "... increasing sensitivity\n"); + D_CALIB("... increasing sensitivity\n"); /* Increase nrg value to increase sensitivity */ val = data->nrg_th_cck + NRG_STEP_CCK; - data->nrg_th_cck = min((u32)ranges->min_nrg_cck, val); + data->nrg_th_cck = min((u32) ranges->min_nrg_cck, val); } else { - IWL_DEBUG_CALIB(priv, - "... but not changing sensitivity\n"); + D_CALIB("... but not changing sensitivity\n"); } - /* Else we got a healthy number of false alarms, keep status quo */ + /* Else we got a healthy number of false alarms, keep status quo */ } else { - IWL_DEBUG_CALIB(priv, " FA in safe zone\n"); - data->nrg_curr_state = IWL_FA_GOOD_RANGE; + D_CALIB(" FA in safe zone\n"); + data->nrg_curr_state = IL_FA_GOOD_RANGE; /* Store for use in "fewer than desired" with later beacon */ data->nrg_silence_ref = silence_ref; @@ -254,8 +250,8 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, /* If previous beacon had too many false alarms, * give it some extra margin by reducing sensitivity again * (but don't go below measured energy of desired Rx) */ - if (IWL_FA_TOO_MANY == data->nrg_prev_state) { - IWL_DEBUG_CALIB(priv, "... increasing margin\n"); + if (IL_FA_TOO_MANY == data->nrg_prev_state) { + D_CALIB("... increasing margin\n"); if (data->nrg_th_cck > (max_nrg_cck + NRG_MARGIN)) data->nrg_th_cck -= NRG_MARGIN; else @@ -269,7 +265,7 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, * Lower value is higher energy, so we use max()! */ data->nrg_th_cck = max(max_nrg_cck, data->nrg_th_cck); - IWL_DEBUG_CALIB(priv, "new nrg_th_cck %u\n", data->nrg_th_cck); + D_CALIB("new nrg_th_cck %u\n", data->nrg_th_cck); data->nrg_prev_state = data->nrg_curr_state; @@ -284,190 +280,187 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv, else { val = data->auto_corr_cck + AUTO_CORR_STEP_CCK; data->auto_corr_cck = - min((u32)ranges->auto_corr_max_cck, val); + min((u32) ranges->auto_corr_max_cck, val); } val = data->auto_corr_cck_mrc + AUTO_CORR_STEP_CCK; data->auto_corr_cck_mrc = - min((u32)ranges->auto_corr_max_cck_mrc, val); - } else if ((false_alarms < min_false_alarms) && - ((data->nrg_auto_corr_silence_diff > NRG_DIFF) || - (data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA))) { + min((u32) ranges->auto_corr_max_cck_mrc, val); + } else if (false_alarms < min_false_alarms && + (data->nrg_auto_corr_silence_diff > NRG_DIFF || + data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA)) { /* Decrease auto_corr values to increase sensitivity */ val = data->auto_corr_cck - AUTO_CORR_STEP_CCK; - data->auto_corr_cck = - max((u32)ranges->auto_corr_min_cck, val); + data->auto_corr_cck = max((u32) ranges->auto_corr_min_cck, val); val = data->auto_corr_cck_mrc - AUTO_CORR_STEP_CCK; data->auto_corr_cck_mrc = - max((u32)ranges->auto_corr_min_cck_mrc, val); + max((u32) ranges->auto_corr_min_cck_mrc, val); } return 0; } - -static int iwl4965_sens_auto_corr_ofdm(struct iwl_priv *priv, - u32 norm_fa, - u32 rx_enable_time) +static int +il4965_sens_auto_corr_ofdm(struct il_priv *il, u32 norm_fa, u32 rx_enable_time) { u32 val; u32 false_alarms = norm_fa * 200 * 1024; u32 max_false_alarms = MAX_FA_OFDM * rx_enable_time; u32 min_false_alarms = MIN_FA_OFDM * rx_enable_time; - struct iwl_sensitivity_data *data = NULL; - const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens; + struct il_sensitivity_data *data = NULL; + const struct il_sensitivity_ranges *ranges = il->hw_params.sens; - data = &(priv->sensitivity_data); + data = &(il->sensitivity_data); /* If we got too many false alarms this time, reduce sensitivity */ if (false_alarms > max_false_alarms) { - IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u)\n", - false_alarms, max_false_alarms); + D_CALIB("norm FA %u > max FA %u)\n", false_alarms, + max_false_alarms); val = data->auto_corr_ofdm + AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm = - min((u32)ranges->auto_corr_max_ofdm, val); + min((u32) ranges->auto_corr_max_ofdm, val); val = data->auto_corr_ofdm_mrc + AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm_mrc = - min((u32)ranges->auto_corr_max_ofdm_mrc, val); + min((u32) ranges->auto_corr_max_ofdm_mrc, val); val = data->auto_corr_ofdm_x1 + AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm_x1 = - min((u32)ranges->auto_corr_max_ofdm_x1, val); + min((u32) ranges->auto_corr_max_ofdm_x1, val); val = data->auto_corr_ofdm_mrc_x1 + AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm_mrc_x1 = - min((u32)ranges->auto_corr_max_ofdm_mrc_x1, val); + min((u32) ranges->auto_corr_max_ofdm_mrc_x1, val); } /* Else if we got fewer than desired, increase sensitivity */ else if (false_alarms < min_false_alarms) { - IWL_DEBUG_CALIB(priv, "norm FA %u < min FA %u\n", - false_alarms, min_false_alarms); + D_CALIB("norm FA %u < min FA %u\n", false_alarms, + min_false_alarms); val = data->auto_corr_ofdm - AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm = - max((u32)ranges->auto_corr_min_ofdm, val); + max((u32) ranges->auto_corr_min_ofdm, val); val = data->auto_corr_ofdm_mrc - AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm_mrc = - max((u32)ranges->auto_corr_min_ofdm_mrc, val); + max((u32) ranges->auto_corr_min_ofdm_mrc, val); val = data->auto_corr_ofdm_x1 - AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm_x1 = - max((u32)ranges->auto_corr_min_ofdm_x1, val); + max((u32) ranges->auto_corr_min_ofdm_x1, val); val = data->auto_corr_ofdm_mrc_x1 - AUTO_CORR_STEP_OFDM; data->auto_corr_ofdm_mrc_x1 = - max((u32)ranges->auto_corr_min_ofdm_mrc_x1, val); + max((u32) ranges->auto_corr_min_ofdm_mrc_x1, val); } else { - IWL_DEBUG_CALIB(priv, "min FA %u < norm FA %u < max FA %u OK\n", - min_false_alarms, false_alarms, max_false_alarms); + D_CALIB("min FA %u < norm FA %u < max FA %u OK\n", + min_false_alarms, false_alarms, max_false_alarms); } return 0; } -static void iwl4965_prepare_legacy_sensitivity_tbl(struct iwl_priv *priv, - struct iwl_sensitivity_data *data, - __le16 *tbl) +static void +il4965_prepare_legacy_sensitivity_tbl(struct il_priv *il, + struct il_sensitivity_data *data, + __le16 *tbl) { - tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX] = - cpu_to_le16((u16)data->auto_corr_ofdm); - tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX] = - cpu_to_le16((u16)data->auto_corr_ofdm_mrc); - tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX] = - cpu_to_le16((u16)data->auto_corr_ofdm_x1); - tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX] = - cpu_to_le16((u16)data->auto_corr_ofdm_mrc_x1); - - tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX] = - cpu_to_le16((u16)data->auto_corr_cck); - tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX] = - cpu_to_le16((u16)data->auto_corr_cck_mrc); - - tbl[HD_MIN_ENERGY_CCK_DET_INDEX] = - cpu_to_le16((u16)data->nrg_th_cck); - tbl[HD_MIN_ENERGY_OFDM_DET_INDEX] = - cpu_to_le16((u16)data->nrg_th_ofdm); - - tbl[HD_BARKER_CORR_TH_ADD_MIN_INDEX] = - cpu_to_le16(data->barker_corr_th_min); - tbl[HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX] = - cpu_to_le16(data->barker_corr_th_min_mrc); - tbl[HD_OFDM_ENERGY_TH_IN_INDEX] = - cpu_to_le16(data->nrg_th_cca); - - IWL_DEBUG_CALIB(priv, "ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n", - data->auto_corr_ofdm, data->auto_corr_ofdm_mrc, - data->auto_corr_ofdm_x1, data->auto_corr_ofdm_mrc_x1, - data->nrg_th_ofdm); - - IWL_DEBUG_CALIB(priv, "cck: ac %u mrc %u thresh %u\n", - data->auto_corr_cck, data->auto_corr_cck_mrc, - data->nrg_th_cck); + tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX] = + cpu_to_le16((u16) data->auto_corr_ofdm); + tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX] = + cpu_to_le16((u16) data->auto_corr_ofdm_mrc); + tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX] = + cpu_to_le16((u16) data->auto_corr_ofdm_x1); + tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX] = + cpu_to_le16((u16) data->auto_corr_ofdm_mrc_x1); + + tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX] = + cpu_to_le16((u16) data->auto_corr_cck); + tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX] = + cpu_to_le16((u16) data->auto_corr_cck_mrc); + + tbl[HD_MIN_ENERGY_CCK_DET_IDX] = cpu_to_le16((u16) data->nrg_th_cck); + tbl[HD_MIN_ENERGY_OFDM_DET_IDX] = cpu_to_le16((u16) data->nrg_th_ofdm); + + tbl[HD_BARKER_CORR_TH_ADD_MIN_IDX] = + cpu_to_le16(data->barker_corr_th_min); + tbl[HD_BARKER_CORR_TH_ADD_MIN_MRC_IDX] = + cpu_to_le16(data->barker_corr_th_min_mrc); + tbl[HD_OFDM_ENERGY_TH_IN_IDX] = cpu_to_le16(data->nrg_th_cca); + + D_CALIB("ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n", + data->auto_corr_ofdm, data->auto_corr_ofdm_mrc, + data->auto_corr_ofdm_x1, data->auto_corr_ofdm_mrc_x1, + data->nrg_th_ofdm); + + D_CALIB("cck: ac %u mrc %u thresh %u\n", data->auto_corr_cck, + data->auto_corr_cck_mrc, data->nrg_th_cck); } -/* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */ -static int iwl4965_sensitivity_write(struct iwl_priv *priv) +/* Prepare a C_SENSITIVITY, send to uCode if values have changed */ +static int +il4965_sensitivity_write(struct il_priv *il) { - struct iwl_sensitivity_cmd cmd; - struct iwl_sensitivity_data *data = NULL; - struct iwl_host_cmd cmd_out = { - .id = SENSITIVITY_CMD, - .len = sizeof(struct iwl_sensitivity_cmd), + struct il_sensitivity_cmd cmd; + struct il_sensitivity_data *data = NULL; + struct il_host_cmd cmd_out = { + .id = C_SENSITIVITY, + .len = sizeof(struct il_sensitivity_cmd), .flags = CMD_ASYNC, .data = &cmd, }; - data = &(priv->sensitivity_data); + data = &(il->sensitivity_data); memset(&cmd, 0, sizeof(cmd)); - iwl4965_prepare_legacy_sensitivity_tbl(priv, data, &cmd.table[0]); + il4965_prepare_legacy_sensitivity_tbl(il, data, &cmd.table[0]); /* Update uCode's "work" table, and copy it to DSP */ - cmd.control = SENSITIVITY_CMD_CONTROL_WORK_TABLE; + cmd.control = C_SENSITIVITY_CONTROL_WORK_TBL; /* Don't send command to uCode if nothing has changed */ - if (!memcmp(&cmd.table[0], &(priv->sensitivity_tbl[0]), - sizeof(u16)*HD_TABLE_SIZE)) { - IWL_DEBUG_CALIB(priv, "No change in SENSITIVITY_CMD\n"); + if (!memcmp + (&cmd.table[0], &(il->sensitivity_tbl[0]), + sizeof(u16) * HD_TBL_SIZE)) { + D_CALIB("No change in C_SENSITIVITY\n"); return 0; } /* Copy table for comparison next time */ - memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]), - sizeof(u16)*HD_TABLE_SIZE); + memcpy(&(il->sensitivity_tbl[0]), &(cmd.table[0]), + sizeof(u16) * HD_TBL_SIZE); - return iwl_legacy_send_cmd(priv, &cmd_out); + return il_send_cmd(il, &cmd_out); } -void iwl4965_init_sensitivity(struct iwl_priv *priv) +void +il4965_init_sensitivity(struct il_priv *il) { int ret = 0; int i; - struct iwl_sensitivity_data *data = NULL; - const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens; + struct il_sensitivity_data *data = NULL; + const struct il_sensitivity_ranges *ranges = il->hw_params.sens; - if (priv->disable_sens_cal) + if (il->disable_sens_cal) return; - IWL_DEBUG_CALIB(priv, "Start iwl4965_init_sensitivity\n"); + D_CALIB("Start il4965_init_sensitivity\n"); /* Clear driver's sensitivity algo data */ - data = &(priv->sensitivity_data); + data = &(il->sensitivity_data); if (ranges == NULL) return; - memset(data, 0, sizeof(struct iwl_sensitivity_data)); + memset(data, 0, sizeof(struct il_sensitivity_data)); data->num_in_cck_no_fa = 0; - data->nrg_curr_state = IWL_FA_TOO_MANY; - data->nrg_prev_state = IWL_FA_TOO_MANY; + data->nrg_curr_state = IL_FA_TOO_MANY; + data->nrg_prev_state = IL_FA_TOO_MANY; data->nrg_silence_ref = 0; data->nrg_silence_idx = 0; data->nrg_energy_idx = 0; @@ -478,9 +471,9 @@ void iwl4965_init_sensitivity(struct iwl_priv *priv) for (i = 0; i < NRG_NUM_PREV_STAT_L; i++) data->nrg_silence_rssi[i] = 0; - data->auto_corr_ofdm = ranges->auto_corr_min_ofdm; + data->auto_corr_ofdm = ranges->auto_corr_min_ofdm; data->auto_corr_ofdm_mrc = ranges->auto_corr_min_ofdm_mrc; - data->auto_corr_ofdm_x1 = ranges->auto_corr_min_ofdm_x1; + data->auto_corr_ofdm_x1 = ranges->auto_corr_min_ofdm_x1; data->auto_corr_ofdm_mrc_x1 = ranges->auto_corr_min_ofdm_mrc_x1; data->auto_corr_cck = AUTO_CORR_CCK_MIN_VAL_DEF; data->auto_corr_cck_mrc = ranges->auto_corr_min_cck_mrc; @@ -495,11 +488,12 @@ void iwl4965_init_sensitivity(struct iwl_priv *priv) data->last_bad_plcp_cnt_cck = 0; data->last_fa_cnt_cck = 0; - ret |= iwl4965_sensitivity_write(priv); - IWL_DEBUG_CALIB(priv, "<<return 0x%X\n", ret); + ret |= il4965_sensitivity_write(il); + D_CALIB("<<return 0x%X\n", ret); } -void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp) +void +il4965_sensitivity_calibration(struct il_priv *il, void *resp) { u32 rx_enable_time; u32 fa_cck; @@ -508,31 +502,31 @@ void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp) u32 bad_plcp_ofdm; u32 norm_fa_ofdm; u32 norm_fa_cck; - struct iwl_sensitivity_data *data = NULL; - struct statistics_rx_non_phy *rx_info; - struct statistics_rx_phy *ofdm, *cck; + struct il_sensitivity_data *data = NULL; + struct stats_rx_non_phy *rx_info; + struct stats_rx_phy *ofdm, *cck; unsigned long flags; - struct statistics_general_data statis; + struct stats_general_data statis; - if (priv->disable_sens_cal) + if (il->disable_sens_cal) return; - data = &(priv->sensitivity_data); + data = &(il->sensitivity_data); - if (!iwl_legacy_is_any_associated(priv)) { - IWL_DEBUG_CALIB(priv, "<< - not associated\n"); + if (!il_is_any_associated(il)) { + D_CALIB("<< - not associated\n"); return; } - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irqsave(&il->lock, flags); - rx_info = &(((struct iwl_notif_statistics *)resp)->rx.general); - ofdm = &(((struct iwl_notif_statistics *)resp)->rx.ofdm); - cck = &(((struct iwl_notif_statistics *)resp)->rx.cck); + rx_info = &(((struct il_notif_stats *)resp)->rx.general); + ofdm = &(((struct il_notif_stats *)resp)->rx.ofdm); + cck = &(((struct il_notif_stats *)resp)->rx.cck); if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) { - IWL_DEBUG_CALIB(priv, "<< invalid data.\n"); - spin_unlock_irqrestore(&priv->lock, flags); + D_CALIB("<< invalid data.\n"); + spin_unlock_irqrestore(&il->lock, flags); return; } @@ -544,30 +538,27 @@ void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp) bad_plcp_ofdm = le32_to_cpu(ofdm->plcp_err); statis.beacon_silence_rssi_a = - le32_to_cpu(rx_info->beacon_silence_rssi_a); + le32_to_cpu(rx_info->beacon_silence_rssi_a); statis.beacon_silence_rssi_b = - le32_to_cpu(rx_info->beacon_silence_rssi_b); + le32_to_cpu(rx_info->beacon_silence_rssi_b); statis.beacon_silence_rssi_c = - le32_to_cpu(rx_info->beacon_silence_rssi_c); - statis.beacon_energy_a = - le32_to_cpu(rx_info->beacon_energy_a); - statis.beacon_energy_b = - le32_to_cpu(rx_info->beacon_energy_b); - statis.beacon_energy_c = - le32_to_cpu(rx_info->beacon_energy_c); + le32_to_cpu(rx_info->beacon_silence_rssi_c); + statis.beacon_energy_a = le32_to_cpu(rx_info->beacon_energy_a); + statis.beacon_energy_b = le32_to_cpu(rx_info->beacon_energy_b); + statis.beacon_energy_c = le32_to_cpu(rx_info->beacon_energy_c); - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&il->lock, flags); - IWL_DEBUG_CALIB(priv, "rx_enable_time = %u usecs\n", rx_enable_time); + D_CALIB("rx_enable_time = %u usecs\n", rx_enable_time); if (!rx_enable_time) { - IWL_DEBUG_CALIB(priv, "<< RX Enable Time == 0!\n"); + D_CALIB("<< RX Enable Time == 0!\n"); return; } - /* These statistics increase monotonically, and do not reset + /* These stats increase monotonically, and do not reset * at each beacon. Calculate difference from last value, or just - * use the new statistics value if it has reset or wrapped around. */ + * use the new stats value if it has reset or wrapped around. */ if (data->last_bad_plcp_cnt_cck > bad_plcp_cck) data->last_bad_plcp_cnt_cck = bad_plcp_cck; else { @@ -600,17 +591,17 @@ void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp) norm_fa_ofdm = fa_ofdm + bad_plcp_ofdm; norm_fa_cck = fa_cck + bad_plcp_cck; - IWL_DEBUG_CALIB(priv, - "cck: fa %u badp %u ofdm: fa %u badp %u\n", fa_cck, - bad_plcp_cck, fa_ofdm, bad_plcp_ofdm); + D_CALIB("cck: fa %u badp %u ofdm: fa %u badp %u\n", fa_cck, + bad_plcp_cck, fa_ofdm, bad_plcp_ofdm); - iwl4965_sens_auto_corr_ofdm(priv, norm_fa_ofdm, rx_enable_time); - iwl4965_sens_energy_cck(priv, norm_fa_cck, rx_enable_time, &statis); + il4965_sens_auto_corr_ofdm(il, norm_fa_ofdm, rx_enable_time); + il4965_sens_energy_cck(il, norm_fa_cck, rx_enable_time, &statis); - iwl4965_sensitivity_write(priv); + il4965_sensitivity_write(il); } -static inline u8 iwl4965_find_first_chain(u8 mask) +static inline u8 +il4965_find_first_chain(u8 mask) { if (mask & ANT_A) return CHAIN_A; @@ -624,8 +615,8 @@ static inline u8 iwl4965_find_first_chain(u8 mask) * disconnected. */ static void -iwl4965_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig, - struct iwl_chain_noise_data *data) +il4965_find_disconn_antenna(struct il_priv *il, u32 * average_sig, + struct il_chain_noise_data *data) { u32 active_chains = 0; u32 max_average_sig; @@ -634,12 +625,15 @@ iwl4965_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig, u8 first_chain; u16 i = 0; - average_sig[0] = data->chain_signal_a / - priv->cfg->base_params->chain_noise_num_beacons; - average_sig[1] = data->chain_signal_b / - priv->cfg->base_params->chain_noise_num_beacons; - average_sig[2] = data->chain_signal_c / - priv->cfg->base_params->chain_noise_num_beacons; + average_sig[0] = + data->chain_signal_a / + il->cfg->base_params->chain_noise_num_beacons; + average_sig[1] = + data->chain_signal_b / + il->cfg->base_params->chain_noise_num_beacons; + average_sig[2] = + data->chain_signal_c / + il->cfg->base_params->chain_noise_num_beacons; if (average_sig[0] >= average_sig[1]) { max_average_sig = average_sig[0]; @@ -657,10 +651,10 @@ iwl4965_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig, active_chains = (1 << max_average_sig_antenna_i); } - IWL_DEBUG_CALIB(priv, "average_sig: a %d b %d c %d\n", - average_sig[0], average_sig[1], average_sig[2]); - IWL_DEBUG_CALIB(priv, "max_average_sig = %d, antenna %d\n", - max_average_sig, max_average_sig_antenna_i); + D_CALIB("average_sig: a %d b %d c %d\n", average_sig[0], average_sig[1], + average_sig[2]); + D_CALIB("max_average_sig = %d, antenna %d\n", max_average_sig, + max_average_sig_antenna_i); /* Compare signal strengths for all 3 receivers. */ for (i = 0; i < NUM_RX_CHAINS; i++) { @@ -673,9 +667,9 @@ iwl4965_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig, data->disconn_array[i] = 1; else active_chains |= (1 << i); - IWL_DEBUG_CALIB(priv, "i = %d rssiDelta = %d " - "disconn_array[i] = %d\n", - i, rssi_delta, data->disconn_array[i]); + D_CALIB("i = %d rssiDelta = %d " + "disconn_array[i] = %d\n", i, rssi_delta, + data->disconn_array[i]); } } @@ -689,119 +683,110 @@ iwl4965_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig, * To be safe, simply mask out any chains that we know * are not on the device. */ - active_chains &= priv->hw_params.valid_rx_ant; + active_chains &= il->hw_params.valid_rx_ant; num_tx_chains = 0; for (i = 0; i < NUM_RX_CHAINS; i++) { /* loops on all the bits of - * priv->hw_setting.valid_tx_ant */ + * il->hw_setting.valid_tx_ant */ u8 ant_msk = (1 << i); - if (!(priv->hw_params.valid_tx_ant & ant_msk)) + if (!(il->hw_params.valid_tx_ant & ant_msk)) continue; num_tx_chains++; if (data->disconn_array[i] == 0) /* there is a Tx antenna connected */ break; - if (num_tx_chains == priv->hw_params.tx_chains_num && + if (num_tx_chains == il->hw_params.tx_chains_num && data->disconn_array[i]) { /* * If all chains are disconnected * connect the first valid tx chain */ first_chain = - iwl4965_find_first_chain(priv->cfg->valid_tx_ant); + il4965_find_first_chain(il->cfg->valid_tx_ant); data->disconn_array[first_chain] = 0; active_chains |= BIT(first_chain); - IWL_DEBUG_CALIB(priv, - "All Tx chains are disconnected W/A - declare %d as connected\n", - first_chain); + D_CALIB("All Tx chains are disconnected" + "- declare %d as connected\n", first_chain); break; } } - if (active_chains != priv->hw_params.valid_rx_ant && - active_chains != priv->chain_noise_data.active_chains) - IWL_DEBUG_CALIB(priv, - "Detected that not all antennas are connected! " - "Connected: %#x, valid: %#x.\n", - active_chains, priv->hw_params.valid_rx_ant); + if (active_chains != il->hw_params.valid_rx_ant && + active_chains != il->chain_noise_data.active_chains) + D_CALIB("Detected that not all antennas are connected! " + "Connected: %#x, valid: %#x.\n", active_chains, + il->hw_params.valid_rx_ant); /* Save for use within RXON, TX, SCAN commands, etc. */ data->active_chains = active_chains; - IWL_DEBUG_CALIB(priv, "active_chains (bitwise) = 0x%x\n", - active_chains); + D_CALIB("active_chains (bitwise) = 0x%x\n", active_chains); } -static void iwl4965_gain_computation(struct iwl_priv *priv, - u32 *average_noise, - u16 min_average_noise_antenna_i, - u32 min_average_noise, - u8 default_chain) +static void +il4965_gain_computation(struct il_priv *il, u32 * average_noise, + u16 min_average_noise_antenna_i, u32 min_average_noise, + u8 default_chain) { int i, ret; - struct iwl_chain_noise_data *data = &priv->chain_noise_data; + struct il_chain_noise_data *data = &il->chain_noise_data; data->delta_gain_code[min_average_noise_antenna_i] = 0; for (i = default_chain; i < NUM_RX_CHAINS; i++) { s32 delta_g = 0; - if (!(data->disconn_array[i]) && - (data->delta_gain_code[i] == - CHAIN_NOISE_DELTA_GAIN_INIT_VAL)) { + if (!data->disconn_array[i] && + data->delta_gain_code[i] == + CHAIN_NOISE_DELTA_GAIN_INIT_VAL) { delta_g = average_noise[i] - min_average_noise; - data->delta_gain_code[i] = (u8)((delta_g * 10) / 15); + data->delta_gain_code[i] = (u8) ((delta_g * 10) / 15); data->delta_gain_code[i] = - min(data->delta_gain_code[i], + min(data->delta_gain_code[i], (u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); data->delta_gain_code[i] = - (data->delta_gain_code[i] | (1 << 2)); + (data->delta_gain_code[i] | (1 << 2)); } else { data->delta_gain_code[i] = 0; } } - IWL_DEBUG_CALIB(priv, "delta_gain_codes: a %d b %d c %d\n", - data->delta_gain_code[0], - data->delta_gain_code[1], - data->delta_gain_code[2]); + D_CALIB("delta_gain_codes: a %d b %d c %d\n", data->delta_gain_code[0], + data->delta_gain_code[1], data->delta_gain_code[2]); /* Differential gain gets sent to uCode only once */ if (!data->radio_write) { - struct iwl_calib_diff_gain_cmd cmd; + struct il_calib_diff_gain_cmd cmd; data->radio_write = 1; memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD; + cmd.hdr.op_code = IL_PHY_CALIBRATE_DIFF_GAIN_CMD; cmd.diff_gain_a = data->delta_gain_code[0]; cmd.diff_gain_b = data->delta_gain_code[1]; cmd.diff_gain_c = data->delta_gain_code[2]; - ret = iwl_legacy_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, - sizeof(cmd), &cmd); + ret = il_send_cmd_pdu(il, C_PHY_CALIBRATION, sizeof(cmd), &cmd); if (ret) - IWL_DEBUG_CALIB(priv, "fail sending cmd " - "REPLY_PHY_CALIBRATION_CMD\n"); + D_CALIB("fail sending cmd " "C_PHY_CALIBRATION\n"); /* TODO we might want recalculate * rx_chain in rxon cmd */ /* Mark so we run this algo only once! */ - data->state = IWL_CHAIN_NOISE_CALIBRATED; + data->state = IL_CHAIN_NOISE_CALIBRATED; } } - - /* - * Accumulate 16 beacons of signal and noise statistics for each of + * Accumulate 16 beacons of signal and noise stats for each of * 3 receivers/antennas/rx-chains, then figure out: * 1) Which antennas are connected. * 2) Differential rx gain settings to balance the 3 receivers. */ -void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp) +void +il4965_chain_noise_calibration(struct il_priv *il, void *stat_resp) { - struct iwl_chain_noise_data *data = NULL; + struct il_chain_noise_data *data = NULL; u32 chain_noise_a; u32 chain_noise_b; @@ -809,8 +794,8 @@ void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp) u32 chain_sig_a; u32 chain_sig_b; u32 chain_sig_c; - u32 average_sig[NUM_RX_CHAINS] = {INITIALIZATION_VALUE}; - u32 average_noise[NUM_RX_CHAINS] = {INITIALIZATION_VALUE}; + u32 average_sig[NUM_RX_CHAINS] = { INITIALIZATION_VALUE }; + u32 average_noise[NUM_RX_CHAINS] = { INITIALIZATION_VALUE }; u32 min_average_noise = MIN_AVERAGE_NOISE_MAX_VALUE; u16 min_average_noise_antenna_i = INITIALIZATION_VALUE; u16 i = 0; @@ -819,70 +804,69 @@ void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp) u8 rxon_band24; u8 stat_band24; unsigned long flags; - struct statistics_rx_non_phy *rx_info; + struct stats_rx_non_phy *rx_info; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; + struct il_rxon_context *ctx = &il->ctx; - if (priv->disable_chain_noise_cal) + if (il->disable_chain_noise_cal) return; - data = &(priv->chain_noise_data); + data = &(il->chain_noise_data); /* * Accumulate just the first "chain_noise_num_beacons" after * the first association, then we're done forever. */ - if (data->state != IWL_CHAIN_NOISE_ACCUMULATE) { - if (data->state == IWL_CHAIN_NOISE_ALIVE) - IWL_DEBUG_CALIB(priv, "Wait for noise calib reset\n"); + if (data->state != IL_CHAIN_NOISE_ACCUMULATE) { + if (data->state == IL_CHAIN_NOISE_ALIVE) + D_CALIB("Wait for noise calib reset\n"); return; } - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irqsave(&il->lock, flags); - rx_info = &(((struct iwl_notif_statistics *)stat_resp)-> - rx.general); + rx_info = &(((struct il_notif_stats *)stat_resp)->rx.general); if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) { - IWL_DEBUG_CALIB(priv, " << Interference data unavailable\n"); - spin_unlock_irqrestore(&priv->lock, flags); + D_CALIB(" << Interference data unavailable\n"); + spin_unlock_irqrestore(&il->lock, flags); return; } rxon_band24 = !!(ctx->staging.flags & RXON_FLG_BAND_24G_MSK); rxon_chnum = le16_to_cpu(ctx->staging.channel); - stat_band24 = !!(((struct iwl_notif_statistics *) - stat_resp)->flag & - STATISTICS_REPLY_FLG_BAND_24G_MSK); - stat_chnum = le32_to_cpu(((struct iwl_notif_statistics *) - stat_resp)->flag) >> 16; + stat_band24 = + !!(((struct il_notif_stats *)stat_resp)-> + flag & STATS_REPLY_FLG_BAND_24G_MSK); + stat_chnum = + le32_to_cpu(((struct il_notif_stats *)stat_resp)->flag) >> 16; /* Make sure we accumulate data for just the associated channel * (even if scanning). */ - if ((rxon_chnum != stat_chnum) || (rxon_band24 != stat_band24)) { - IWL_DEBUG_CALIB(priv, "Stats not from chan=%d, band24=%d\n", - rxon_chnum, rxon_band24); - spin_unlock_irqrestore(&priv->lock, flags); + if (rxon_chnum != stat_chnum || rxon_band24 != stat_band24) { + D_CALIB("Stats not from chan=%d, band24=%d\n", rxon_chnum, + rxon_band24); + spin_unlock_irqrestore(&il->lock, flags); return; } /* - * Accumulate beacon statistics values across + * Accumulate beacon stats values across * "chain_noise_num_beacons" */ - chain_noise_a = le32_to_cpu(rx_info->beacon_silence_rssi_a) & - IN_BAND_FILTER; - chain_noise_b = le32_to_cpu(rx_info->beacon_silence_rssi_b) & - IN_BAND_FILTER; - chain_noise_c = le32_to_cpu(rx_info->beacon_silence_rssi_c) & - IN_BAND_FILTER; + chain_noise_a = + le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER; + chain_noise_b = + le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER; + chain_noise_c = + le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER; chain_sig_a = le32_to_cpu(rx_info->beacon_rssi_a) & IN_BAND_FILTER; chain_sig_b = le32_to_cpu(rx_info->beacon_rssi_b) & IN_BAND_FILTER; chain_sig_c = le32_to_cpu(rx_info->beacon_rssi_c) & IN_BAND_FILTER; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&il->lock, flags); data->beacon_count++; @@ -894,34 +878,33 @@ void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp) data->chain_signal_b = (chain_sig_b + data->chain_signal_b); data->chain_signal_c = (chain_sig_c + data->chain_signal_c); - IWL_DEBUG_CALIB(priv, "chan=%d, band24=%d, beacon=%d\n", - rxon_chnum, rxon_band24, data->beacon_count); - IWL_DEBUG_CALIB(priv, "chain_sig: a %d b %d c %d\n", - chain_sig_a, chain_sig_b, chain_sig_c); - IWL_DEBUG_CALIB(priv, "chain_noise: a %d b %d c %d\n", - chain_noise_a, chain_noise_b, chain_noise_c); + D_CALIB("chan=%d, band24=%d, beacon=%d\n", rxon_chnum, rxon_band24, + data->beacon_count); + D_CALIB("chain_sig: a %d b %d c %d\n", chain_sig_a, chain_sig_b, + chain_sig_c); + D_CALIB("chain_noise: a %d b %d c %d\n", chain_noise_a, chain_noise_b, + chain_noise_c); /* If this is the "chain_noise_num_beacons", determine: * 1) Disconnected antennas (using signal strengths) * 2) Differential gain (using silence noise) to balance receivers */ - if (data->beacon_count != - priv->cfg->base_params->chain_noise_num_beacons) + if (data->beacon_count != il->cfg->base_params->chain_noise_num_beacons) return; /* Analyze signal for disconnected antenna */ - iwl4965_find_disconn_antenna(priv, average_sig, data); + il4965_find_disconn_antenna(il, average_sig, data); /* Analyze noise for rx balance */ - average_noise[0] = data->chain_noise_a / - priv->cfg->base_params->chain_noise_num_beacons; - average_noise[1] = data->chain_noise_b / - priv->cfg->base_params->chain_noise_num_beacons; - average_noise[2] = data->chain_noise_c / - priv->cfg->base_params->chain_noise_num_beacons; + average_noise[0] = + data->chain_noise_a / il->cfg->base_params->chain_noise_num_beacons; + average_noise[1] = + data->chain_noise_b / il->cfg->base_params->chain_noise_num_beacons; + average_noise[2] = + data->chain_noise_c / il->cfg->base_params->chain_noise_num_beacons; for (i = 0; i < NUM_RX_CHAINS; i++) { - if (!(data->disconn_array[i]) && - (average_noise[i] <= min_average_noise)) { + if (!data->disconn_array[i] && + average_noise[i] <= min_average_noise) { /* This means that chain i is active and has * lower noise values so far: */ min_average_noise = average_noise[i]; @@ -929,39 +912,37 @@ void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp) } } - IWL_DEBUG_CALIB(priv, "average_noise: a %d b %d c %d\n", - average_noise[0], average_noise[1], - average_noise[2]); + D_CALIB("average_noise: a %d b %d c %d\n", average_noise[0], + average_noise[1], average_noise[2]); - IWL_DEBUG_CALIB(priv, "min_average_noise = %d, antenna %d\n", - min_average_noise, min_average_noise_antenna_i); + D_CALIB("min_average_noise = %d, antenna %d\n", min_average_noise, + min_average_noise_antenna_i); - iwl4965_gain_computation(priv, average_noise, - min_average_noise_antenna_i, min_average_noise, - iwl4965_find_first_chain(priv->cfg->valid_rx_ant)); + il4965_gain_computation(il, average_noise, min_average_noise_antenna_i, + min_average_noise, + il4965_find_first_chain(il->cfg->valid_rx_ant)); /* Some power changes may have been made during the calibration. * Update and commit the RXON */ - if (priv->cfg->ops->lib->update_chain_flags) - priv->cfg->ops->lib->update_chain_flags(priv); + if (il->cfg->ops->lib->update_chain_flags) + il->cfg->ops->lib->update_chain_flags(il); - data->state = IWL_CHAIN_NOISE_DONE; - iwl_legacy_power_update_mode(priv, false); + data->state = IL_CHAIN_NOISE_DONE; + il_power_update_mode(il, false); } -void iwl4965_reset_run_time_calib(struct iwl_priv *priv) +void +il4965_reset_run_time_calib(struct il_priv *il) { int i; - memset(&(priv->sensitivity_data), 0, - sizeof(struct iwl_sensitivity_data)); - memset(&(priv->chain_noise_data), 0, - sizeof(struct iwl_chain_noise_data)); + memset(&(il->sensitivity_data), 0, sizeof(struct il_sensitivity_data)); + memset(&(il->chain_noise_data), 0, sizeof(struct il_chain_noise_data)); for (i = 0; i < NUM_RX_CHAINS; i++) - priv->chain_noise_data.delta_gain_code[i] = - CHAIN_NOISE_DELTA_GAIN_INIT_VAL; + il->chain_noise_data.delta_gain_code[i] = + CHAIN_NOISE_DELTA_GAIN_INIT_VAL; - /* Ask for statistics now, the uCode will send notification + /* Ask for stats now, the uCode will send notification * periodically after association */ - iwl_legacy_send_statistics_request(priv, CMD_ASYNC, true); + il_send_stats_request(il, CMD_ASYNC, true); } diff --git a/drivers/net/wireless/iwlegacy/4965-debug.c b/drivers/net/wireless/iwlegacy/4965-debug.c new file mode 100644 index 000000000000..98ec39f56ba3 --- /dev/null +++ b/drivers/net/wireless/iwlegacy/4965-debug.c @@ -0,0 +1,746 @@ +/****************************************************************************** +* +* GPL LICENSE SUMMARY +* +* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of version 2 of the GNU General Public License as +* published by the Free Software Foundation. +* +* This program is distributed in the hope that it will be useful, but +* WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, +* USA +* +* The full GNU General Public License is included in this distribution +* in the file called LICENSE.GPL. +* +* Contact Information: +* Intel Linux Wireless <ilw@linux.intel.com> +* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 +*****************************************************************************/ +#include "common.h" +#include "4965.h" + +static const char *fmt_value = " %-30s %10u\n"; +static const char *fmt_table = " %-30s %10u %10u %10u %10u\n"; +static const char *fmt_header = + "%-32s current cumulative delta max\n"; + +static int +il4965_stats_flag(struct il_priv *il, char *buf, int bufsz) +{ + int p = 0; + u32 flag; + + flag = le32_to_cpu(il->_4965.stats.flag); + + p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag); + if (flag & UCODE_STATS_CLEAR_MSK) + p += scnprintf(buf + p, bufsz - p, + "\tStatistics have been cleared\n"); + p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n", + (flag & UCODE_STATS_FREQUENCY_MSK) ? "2.4 GHz" : + "5.2 GHz"); + p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n", + (flag & UCODE_STATS_NARROW_BAND_MSK) ? "enabled" : + "disabled"); + + return p; +} + +ssize_t +il4965_ucode_rx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + int pos = 0; + char *buf; + int bufsz = + sizeof(struct stats_rx_phy) * 40 + + sizeof(struct stats_rx_non_phy) * 40 + + sizeof(struct stats_rx_ht_phy) * 40 + 400; + ssize_t ret; + struct stats_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm; + struct stats_rx_phy *cck, *accum_cck, *delta_cck, *max_cck; + struct stats_rx_non_phy *general, *accum_general; + struct stats_rx_non_phy *delta_general, *max_general; + struct stats_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht; + + if (!il_is_alive(il)) + return -EAGAIN; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + /* + * the statistic information display here is based on + * the last stats notification from uCode + * might not reflect the current uCode activity + */ + ofdm = &il->_4965.stats.rx.ofdm; + cck = &il->_4965.stats.rx.cck; + general = &il->_4965.stats.rx.general; + ht = &il->_4965.stats.rx.ofdm_ht; + accum_ofdm = &il->_4965.accum_stats.rx.ofdm; + accum_cck = &il->_4965.accum_stats.rx.cck; + accum_general = &il->_4965.accum_stats.rx.general; + accum_ht = &il->_4965.accum_stats.rx.ofdm_ht; + delta_ofdm = &il->_4965.delta_stats.rx.ofdm; + delta_cck = &il->_4965.delta_stats.rx.cck; + delta_general = &il->_4965.delta_stats.rx.general; + delta_ht = &il->_4965.delta_stats.rx.ofdm_ht; + max_ofdm = &il->_4965.max_delta.rx.ofdm; + max_cck = &il->_4965.max_delta.rx.cck; + max_general = &il->_4965.max_delta.rx.general; + max_ht = &il->_4965.max_delta.rx.ofdm_ht; + + pos += il4965_stats_flag(il, buf, bufsz); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - OFDM:"); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "ina_cnt:", + le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt, + delta_ofdm->ina_cnt, max_ofdm->ina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_cnt:", + le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt, + delta_ofdm->fina_cnt, max_ofdm->fina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:", + le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err, + delta_ofdm->plcp_err, max_ofdm->plcp_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:", + le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err, + delta_ofdm->crc32_err, max_ofdm->crc32_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:", + le32_to_cpu(ofdm->overrun_err), accum_ofdm->overrun_err, + delta_ofdm->overrun_err, max_ofdm->overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:", + le32_to_cpu(ofdm->early_overrun_err), + accum_ofdm->early_overrun_err, + delta_ofdm->early_overrun_err, + max_ofdm->early_overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:", + le32_to_cpu(ofdm->crc32_good), accum_ofdm->crc32_good, + delta_ofdm->crc32_good, max_ofdm->crc32_good); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "false_alarm_cnt:", + le32_to_cpu(ofdm->false_alarm_cnt), + accum_ofdm->false_alarm_cnt, delta_ofdm->false_alarm_cnt, + max_ofdm->false_alarm_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_sync_err_cnt:", + le32_to_cpu(ofdm->fina_sync_err_cnt), + accum_ofdm->fina_sync_err_cnt, + delta_ofdm->fina_sync_err_cnt, + max_ofdm->fina_sync_err_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sfd_timeout:", + le32_to_cpu(ofdm->sfd_timeout), accum_ofdm->sfd_timeout, + delta_ofdm->sfd_timeout, max_ofdm->sfd_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_timeout:", + le32_to_cpu(ofdm->fina_timeout), accum_ofdm->fina_timeout, + delta_ofdm->fina_timeout, max_ofdm->fina_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "unresponded_rts:", + le32_to_cpu(ofdm->unresponded_rts), + accum_ofdm->unresponded_rts, delta_ofdm->unresponded_rts, + max_ofdm->unresponded_rts); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "rxe_frame_lmt_ovrun:", + le32_to_cpu(ofdm->rxe_frame_limit_overrun), + accum_ofdm->rxe_frame_limit_overrun, + delta_ofdm->rxe_frame_limit_overrun, + max_ofdm->rxe_frame_limit_overrun); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ack_cnt:", + le32_to_cpu(ofdm->sent_ack_cnt), accum_ofdm->sent_ack_cnt, + delta_ofdm->sent_ack_cnt, max_ofdm->sent_ack_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_cts_cnt:", + le32_to_cpu(ofdm->sent_cts_cnt), accum_ofdm->sent_cts_cnt, + delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ba_rsp_cnt:", + le32_to_cpu(ofdm->sent_ba_rsp_cnt), + accum_ofdm->sent_ba_rsp_cnt, delta_ofdm->sent_ba_rsp_cnt, + max_ofdm->sent_ba_rsp_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_self_kill:", + le32_to_cpu(ofdm->dsp_self_kill), + accum_ofdm->dsp_self_kill, delta_ofdm->dsp_self_kill, + max_ofdm->dsp_self_kill); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:", + le32_to_cpu(ofdm->mh_format_err), + accum_ofdm->mh_format_err, delta_ofdm->mh_format_err, + max_ofdm->mh_format_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "re_acq_main_rssi_sum:", + le32_to_cpu(ofdm->re_acq_main_rssi_sum), + accum_ofdm->re_acq_main_rssi_sum, + delta_ofdm->re_acq_main_rssi_sum, + max_ofdm->re_acq_main_rssi_sum); + + pos += + scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - CCK:"); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "ina_cnt:", + le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt, + delta_cck->ina_cnt, max_cck->ina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_cnt:", + le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt, + delta_cck->fina_cnt, max_cck->fina_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:", + le32_to_cpu(cck->plcp_err), accum_cck->plcp_err, + delta_cck->plcp_err, max_cck->plcp_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:", + le32_to_cpu(cck->crc32_err), accum_cck->crc32_err, + delta_cck->crc32_err, max_cck->crc32_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:", + le32_to_cpu(cck->overrun_err), accum_cck->overrun_err, + delta_cck->overrun_err, max_cck->overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:", + le32_to_cpu(cck->early_overrun_err), + accum_cck->early_overrun_err, + delta_cck->early_overrun_err, max_cck->early_overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:", + le32_to_cpu(cck->crc32_good), accum_cck->crc32_good, + delta_cck->crc32_good, max_cck->crc32_good); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "false_alarm_cnt:", + le32_to_cpu(cck->false_alarm_cnt), + accum_cck->false_alarm_cnt, delta_cck->false_alarm_cnt, + max_cck->false_alarm_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_sync_err_cnt:", + le32_to_cpu(cck->fina_sync_err_cnt), + accum_cck->fina_sync_err_cnt, + delta_cck->fina_sync_err_cnt, max_cck->fina_sync_err_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sfd_timeout:", + le32_to_cpu(cck->sfd_timeout), accum_cck->sfd_timeout, + delta_cck->sfd_timeout, max_cck->sfd_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_timeout:", + le32_to_cpu(cck->fina_timeout), accum_cck->fina_timeout, + delta_cck->fina_timeout, max_cck->fina_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "unresponded_rts:", + le32_to_cpu(cck->unresponded_rts), + accum_cck->unresponded_rts, delta_cck->unresponded_rts, + max_cck->unresponded_rts); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "rxe_frame_lmt_ovrun:", + le32_to_cpu(cck->rxe_frame_limit_overrun), + accum_cck->rxe_frame_limit_overrun, + delta_cck->rxe_frame_limit_overrun, + max_cck->rxe_frame_limit_overrun); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ack_cnt:", + le32_to_cpu(cck->sent_ack_cnt), accum_cck->sent_ack_cnt, + delta_cck->sent_ack_cnt, max_cck->sent_ack_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_cts_cnt:", + le32_to_cpu(cck->sent_cts_cnt), accum_cck->sent_cts_cnt, + delta_cck->sent_cts_cnt, max_cck->sent_cts_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ba_rsp_cnt:", + le32_to_cpu(cck->sent_ba_rsp_cnt), + accum_cck->sent_ba_rsp_cnt, delta_cck->sent_ba_rsp_cnt, + max_cck->sent_ba_rsp_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_self_kill:", + le32_to_cpu(cck->dsp_self_kill), accum_cck->dsp_self_kill, + delta_cck->dsp_self_kill, max_cck->dsp_self_kill); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:", + le32_to_cpu(cck->mh_format_err), accum_cck->mh_format_err, + delta_cck->mh_format_err, max_cck->mh_format_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "re_acq_main_rssi_sum:", + le32_to_cpu(cck->re_acq_main_rssi_sum), + accum_cck->re_acq_main_rssi_sum, + delta_cck->re_acq_main_rssi_sum, + max_cck->re_acq_main_rssi_sum); + + pos += + scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - GENERAL:"); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "bogus_cts:", + le32_to_cpu(general->bogus_cts), accum_general->bogus_cts, + delta_general->bogus_cts, max_general->bogus_cts); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "bogus_ack:", + le32_to_cpu(general->bogus_ack), accum_general->bogus_ack, + delta_general->bogus_ack, max_general->bogus_ack); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "non_bssid_frames:", + le32_to_cpu(general->non_bssid_frames), + accum_general->non_bssid_frames, + delta_general->non_bssid_frames, + max_general->non_bssid_frames); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "filtered_frames:", + le32_to_cpu(general->filtered_frames), + accum_general->filtered_frames, + delta_general->filtered_frames, + max_general->filtered_frames); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "non_channel_beacons:", + le32_to_cpu(general->non_channel_beacons), + accum_general->non_channel_beacons, + delta_general->non_channel_beacons, + max_general->non_channel_beacons); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "channel_beacons:", + le32_to_cpu(general->channel_beacons), + accum_general->channel_beacons, + delta_general->channel_beacons, + max_general->channel_beacons); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "num_missed_bcon:", + le32_to_cpu(general->num_missed_bcon), + accum_general->num_missed_bcon, + delta_general->num_missed_bcon, + max_general->num_missed_bcon); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "adc_rx_saturation_time:", + le32_to_cpu(general->adc_rx_saturation_time), + accum_general->adc_rx_saturation_time, + delta_general->adc_rx_saturation_time, + max_general->adc_rx_saturation_time); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "ina_detect_search_tm:", + le32_to_cpu(general->ina_detection_search_time), + accum_general->ina_detection_search_time, + delta_general->ina_detection_search_time, + max_general->ina_detection_search_time); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "beacon_silence_rssi_a:", + le32_to_cpu(general->beacon_silence_rssi_a), + accum_general->beacon_silence_rssi_a, + delta_general->beacon_silence_rssi_a, + max_general->beacon_silence_rssi_a); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "beacon_silence_rssi_b:", + le32_to_cpu(general->beacon_silence_rssi_b), + accum_general->beacon_silence_rssi_b, + delta_general->beacon_silence_rssi_b, + max_general->beacon_silence_rssi_b); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "beacon_silence_rssi_c:", + le32_to_cpu(general->beacon_silence_rssi_c), + accum_general->beacon_silence_rssi_c, + delta_general->beacon_silence_rssi_c, + max_general->beacon_silence_rssi_c); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "interference_data_flag:", + le32_to_cpu(general->interference_data_flag), + accum_general->interference_data_flag, + delta_general->interference_data_flag, + max_general->interference_data_flag); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "channel_load:", + le32_to_cpu(general->channel_load), + accum_general->channel_load, delta_general->channel_load, + max_general->channel_load); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_false_alarms:", + le32_to_cpu(general->dsp_false_alarms), + accum_general->dsp_false_alarms, + delta_general->dsp_false_alarms, + max_general->dsp_false_alarms); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_a:", + le32_to_cpu(general->beacon_rssi_a), + accum_general->beacon_rssi_a, + delta_general->beacon_rssi_a, max_general->beacon_rssi_a); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_b:", + le32_to_cpu(general->beacon_rssi_b), + accum_general->beacon_rssi_b, + delta_general->beacon_rssi_b, max_general->beacon_rssi_b); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_c:", + le32_to_cpu(general->beacon_rssi_c), + accum_general->beacon_rssi_c, + delta_general->beacon_rssi_c, max_general->beacon_rssi_c); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_a:", + le32_to_cpu(general->beacon_energy_a), + accum_general->beacon_energy_a, + delta_general->beacon_energy_a, + max_general->beacon_energy_a); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_b:", + le32_to_cpu(general->beacon_energy_b), + accum_general->beacon_energy_b, + delta_general->beacon_energy_b, + max_general->beacon_energy_b); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_c:", + le32_to_cpu(general->beacon_energy_c), + accum_general->beacon_energy_c, + delta_general->beacon_energy_c, + max_general->beacon_energy_c); + + pos += + scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - OFDM_HT:"); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:", + le32_to_cpu(ht->plcp_err), accum_ht->plcp_err, + delta_ht->plcp_err, max_ht->plcp_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:", + le32_to_cpu(ht->overrun_err), accum_ht->overrun_err, + delta_ht->overrun_err, max_ht->overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:", + le32_to_cpu(ht->early_overrun_err), + accum_ht->early_overrun_err, delta_ht->early_overrun_err, + max_ht->early_overrun_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:", + le32_to_cpu(ht->crc32_good), accum_ht->crc32_good, + delta_ht->crc32_good, max_ht->crc32_good); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:", + le32_to_cpu(ht->crc32_err), accum_ht->crc32_err, + delta_ht->crc32_err, max_ht->crc32_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:", + le32_to_cpu(ht->mh_format_err), accum_ht->mh_format_err, + delta_ht->mh_format_err, max_ht->mh_format_err); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_crc32_good:", + le32_to_cpu(ht->agg_crc32_good), accum_ht->agg_crc32_good, + delta_ht->agg_crc32_good, max_ht->agg_crc32_good); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_mpdu_cnt:", + le32_to_cpu(ht->agg_mpdu_cnt), accum_ht->agg_mpdu_cnt, + delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_cnt:", + le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt, + delta_ht->agg_cnt, max_ht->agg_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "unsupport_mcs:", + le32_to_cpu(ht->unsupport_mcs), accum_ht->unsupport_mcs, + delta_ht->unsupport_mcs, max_ht->unsupport_mcs); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +ssize_t +il4965_ucode_tx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + int pos = 0; + char *buf; + int bufsz = (sizeof(struct stats_tx) * 48) + 250; + ssize_t ret; + struct stats_tx *tx, *accum_tx, *delta_tx, *max_tx; + + if (!il_is_alive(il)) + return -EAGAIN; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + /* the statistic information display here is based on + * the last stats notification from uCode + * might not reflect the current uCode activity + */ + tx = &il->_4965.stats.tx; + accum_tx = &il->_4965.accum_stats.tx; + delta_tx = &il->_4965.delta_stats.tx; + max_tx = &il->_4965.max_delta.tx; + + pos += il4965_stats_flag(il, buf, bufsz); + pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Tx:"); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "preamble:", + le32_to_cpu(tx->preamble_cnt), accum_tx->preamble_cnt, + delta_tx->preamble_cnt, max_tx->preamble_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "rx_detected_cnt:", + le32_to_cpu(tx->rx_detected_cnt), + accum_tx->rx_detected_cnt, delta_tx->rx_detected_cnt, + max_tx->rx_detected_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "bt_prio_defer_cnt:", + le32_to_cpu(tx->bt_prio_defer_cnt), + accum_tx->bt_prio_defer_cnt, delta_tx->bt_prio_defer_cnt, + max_tx->bt_prio_defer_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "bt_prio_kill_cnt:", + le32_to_cpu(tx->bt_prio_kill_cnt), + accum_tx->bt_prio_kill_cnt, delta_tx->bt_prio_kill_cnt, + max_tx->bt_prio_kill_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "few_bytes_cnt:", + le32_to_cpu(tx->few_bytes_cnt), accum_tx->few_bytes_cnt, + delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "cts_timeout:", + le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout, + delta_tx->cts_timeout, max_tx->cts_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "ack_timeout:", + le32_to_cpu(tx->ack_timeout), accum_tx->ack_timeout, + delta_tx->ack_timeout, max_tx->ack_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "expected_ack_cnt:", + le32_to_cpu(tx->expected_ack_cnt), + accum_tx->expected_ack_cnt, delta_tx->expected_ack_cnt, + max_tx->expected_ack_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "actual_ack_cnt:", + le32_to_cpu(tx->actual_ack_cnt), accum_tx->actual_ack_cnt, + delta_tx->actual_ack_cnt, max_tx->actual_ack_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "dump_msdu_cnt:", + le32_to_cpu(tx->dump_msdu_cnt), accum_tx->dump_msdu_cnt, + delta_tx->dump_msdu_cnt, max_tx->dump_msdu_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "abort_nxt_frame_mismatch:", + le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt), + accum_tx->burst_abort_next_frame_mismatch_cnt, + delta_tx->burst_abort_next_frame_mismatch_cnt, + max_tx->burst_abort_next_frame_mismatch_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "abort_missing_nxt_frame:", + le32_to_cpu(tx->burst_abort_missing_next_frame_cnt), + accum_tx->burst_abort_missing_next_frame_cnt, + delta_tx->burst_abort_missing_next_frame_cnt, + max_tx->burst_abort_missing_next_frame_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "cts_timeout_collision:", + le32_to_cpu(tx->cts_timeout_collision), + accum_tx->cts_timeout_collision, + delta_tx->cts_timeout_collision, + max_tx->cts_timeout_collision); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "ack_ba_timeout_collision:", + le32_to_cpu(tx->ack_or_ba_timeout_collision), + accum_tx->ack_or_ba_timeout_collision, + delta_tx->ack_or_ba_timeout_collision, + max_tx->ack_or_ba_timeout_collision); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg ba_timeout:", + le32_to_cpu(tx->agg.ba_timeout), accum_tx->agg.ba_timeout, + delta_tx->agg.ba_timeout, max_tx->agg.ba_timeout); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "agg ba_resched_frames:", + le32_to_cpu(tx->agg.ba_reschedule_frames), + accum_tx->agg.ba_reschedule_frames, + delta_tx->agg.ba_reschedule_frames, + max_tx->agg.ba_reschedule_frames); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "agg scd_query_agg_frame:", + le32_to_cpu(tx->agg.scd_query_agg_frame_cnt), + accum_tx->agg.scd_query_agg_frame_cnt, + delta_tx->agg.scd_query_agg_frame_cnt, + max_tx->agg.scd_query_agg_frame_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "agg scd_query_no_agg:", + le32_to_cpu(tx->agg.scd_query_no_agg), + accum_tx->agg.scd_query_no_agg, + delta_tx->agg.scd_query_no_agg, + max_tx->agg.scd_query_no_agg); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg scd_query_agg:", + le32_to_cpu(tx->agg.scd_query_agg), + accum_tx->agg.scd_query_agg, delta_tx->agg.scd_query_agg, + max_tx->agg.scd_query_agg); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "agg scd_query_mismatch:", + le32_to_cpu(tx->agg.scd_query_mismatch), + accum_tx->agg.scd_query_mismatch, + delta_tx->agg.scd_query_mismatch, + max_tx->agg.scd_query_mismatch); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg frame_not_ready:", + le32_to_cpu(tx->agg.frame_not_ready), + accum_tx->agg.frame_not_ready, + delta_tx->agg.frame_not_ready, + max_tx->agg.frame_not_ready); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg underrun:", + le32_to_cpu(tx->agg.underrun), accum_tx->agg.underrun, + delta_tx->agg.underrun, max_tx->agg.underrun); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg bt_prio_kill:", + le32_to_cpu(tx->agg.bt_prio_kill), + accum_tx->agg.bt_prio_kill, delta_tx->agg.bt_prio_kill, + max_tx->agg.bt_prio_kill); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "agg rx_ba_rsp_cnt:", + le32_to_cpu(tx->agg.rx_ba_rsp_cnt), + accum_tx->agg.rx_ba_rsp_cnt, delta_tx->agg.rx_ba_rsp_cnt, + max_tx->agg.rx_ba_rsp_cnt); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +ssize_t +il4965_ucode_general_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + int pos = 0; + char *buf; + int bufsz = sizeof(struct stats_general) * 10 + 300; + ssize_t ret; + struct stats_general_common *general, *accum_general; + struct stats_general_common *delta_general, *max_general; + struct stats_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg; + struct stats_div *div, *accum_div, *delta_div, *max_div; + + if (!il_is_alive(il)) + return -EAGAIN; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + /* the statistic information display here is based on + * the last stats notification from uCode + * might not reflect the current uCode activity + */ + general = &il->_4965.stats.general.common; + dbg = &il->_4965.stats.general.common.dbg; + div = &il->_4965.stats.general.common.div; + accum_general = &il->_4965.accum_stats.general.common; + accum_dbg = &il->_4965.accum_stats.general.common.dbg; + accum_div = &il->_4965.accum_stats.general.common.div; + delta_general = &il->_4965.delta_stats.general.common; + max_general = &il->_4965.max_delta.general.common; + delta_dbg = &il->_4965.delta_stats.general.common.dbg; + max_dbg = &il->_4965.max_delta.general.common.dbg; + delta_div = &il->_4965.delta_stats.general.common.div; + max_div = &il->_4965.max_delta.general.common.div; + + pos += il4965_stats_flag(il, buf, bufsz); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_General:"); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_value, "temperature:", + le32_to_cpu(general->temperature)); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_value, "ttl_timestamp:", + le32_to_cpu(general->ttl_timestamp)); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "burst_check:", + le32_to_cpu(dbg->burst_check), accum_dbg->burst_check, + delta_dbg->burst_check, max_dbg->burst_check); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "burst_count:", + le32_to_cpu(dbg->burst_count), accum_dbg->burst_count, + delta_dbg->burst_count, max_dbg->burst_count); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, + "wait_for_silence_timeout_count:", + le32_to_cpu(dbg->wait_for_silence_timeout_cnt), + accum_dbg->wait_for_silence_timeout_cnt, + delta_dbg->wait_for_silence_timeout_cnt, + max_dbg->wait_for_silence_timeout_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "sleep_time:", + le32_to_cpu(general->sleep_time), + accum_general->sleep_time, delta_general->sleep_time, + max_general->sleep_time); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "slots_out:", + le32_to_cpu(general->slots_out), accum_general->slots_out, + delta_general->slots_out, max_general->slots_out); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "slots_idle:", + le32_to_cpu(general->slots_idle), + accum_general->slots_idle, delta_general->slots_idle, + max_general->slots_idle); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "tx_on_a:", + le32_to_cpu(div->tx_on_a), accum_div->tx_on_a, + delta_div->tx_on_a, max_div->tx_on_a); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "tx_on_b:", + le32_to_cpu(div->tx_on_b), accum_div->tx_on_b, + delta_div->tx_on_b, max_div->tx_on_b); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "exec_time:", + le32_to_cpu(div->exec_time), accum_div->exec_time, + delta_div->exec_time, max_div->exec_time); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "probe_time:", + le32_to_cpu(div->probe_time), accum_div->probe_time, + delta_div->probe_time, max_div->probe_time); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "rx_enable_counter:", + le32_to_cpu(general->rx_enable_counter), + accum_general->rx_enable_counter, + delta_general->rx_enable_counter, + max_general->rx_enable_counter); + pos += + scnprintf(buf + pos, bufsz - pos, fmt_table, "num_of_sos_states:", + le32_to_cpu(general->num_of_sos_states), + accum_general->num_of_sos_states, + delta_general->num_of_sos_states, + max_general->num_of_sos_states); + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c new file mode 100644 index 000000000000..4aaef4135564 --- /dev/null +++ b/drivers/net/wireless/iwlegacy/4965-mac.c @@ -0,0 +1,6536 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * Portions of this file are derived from the ipw3945 project, as well + * as portions of the ieee80211 subsystem header files. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci-aspm.h> +#include <linux/slab.h> +#include <linux/dma-mapping.h> +#include <linux/delay.h> +#include <linux/sched.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/firmware.h> +#include <linux/etherdevice.h> +#include <linux/if_arp.h> + +#include <net/mac80211.h> + +#include <asm/div64.h> + +#define DRV_NAME "iwl4965" + +#include "common.h" +#include "4965.h" + +/****************************************************************************** + * + * module boiler plate + * + ******************************************************************************/ + +/* + * module name, copyright, version, etc. + */ +#define DRV_DESCRIPTION "Intel(R) Wireless WiFi 4965 driver for Linux" + +#ifdef CONFIG_IWLEGACY_DEBUG +#define VD "d" +#else +#define VD +#endif + +#define DRV_VERSION IWLWIFI_VERSION VD + +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_VERSION(DRV_VERSION); +MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("iwl4965"); + +void +il4965_check_abort_status(struct il_priv *il, u8 frame_count, u32 status) +{ + if (frame_count == 1 && status == TX_STATUS_FAIL_RFKILL_FLUSH) { + IL_ERR("Tx flush command to flush out all frames\n"); + if (!test_bit(S_EXIT_PENDING, &il->status)) + queue_work(il->workqueue, &il->tx_flush); + } +} + +/* + * EEPROM + */ +struct il_mod_params il4965_mod_params = { + .amsdu_size_8K = 1, + .restart_fw = 1, + /* the rest are 0 by default */ +}; + +void +il4965_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq) +{ + unsigned long flags; + int i; + spin_lock_irqsave(&rxq->lock, flags); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { + /* In the reset function, these buffers may have been allocated + * to an SKB, so we need to unmap and free potential storage */ + if (rxq->pool[i].page != NULL) { + pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + __il_free_pages(il, rxq->pool[i].page); + rxq->pool[i].page = NULL; + } + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + } + + for (i = 0; i < RX_QUEUE_SIZE; i++) + rxq->queue[i] = NULL; + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->write_actual = 0; + rxq->free_count = 0; + spin_unlock_irqrestore(&rxq->lock, flags); +} + +int +il4965_rx_init(struct il_priv *il, struct il_rx_queue *rxq) +{ + u32 rb_size; + const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */ + u32 rb_timeout = 0; + + if (il->cfg->mod_params->amsdu_size_8K) + rb_size = FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K; + else + rb_size = FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K; + + /* Stop Rx DMA */ + il_wr(il, FH49_MEM_RCSR_CHNL0_CONFIG_REG, 0); + + /* Reset driver's Rx queue write idx */ + il_wr(il, FH49_RSCSR_CHNL0_RBDCB_WPTR_REG, 0); + + /* Tell device where to find RBD circular buffer in DRAM */ + il_wr(il, FH49_RSCSR_CHNL0_RBDCB_BASE_REG, (u32) (rxq->bd_dma >> 8)); + + /* Tell device where in DRAM to update its Rx status */ + il_wr(il, FH49_RSCSR_CHNL0_STTS_WPTR_REG, rxq->rb_stts_dma >> 4); + + /* Enable Rx DMA + * Direct rx interrupts to hosts + * Rx buffer size 4 or 8k + * RB timeout 0x10 + * 256 RBDs + */ + il_wr(il, FH49_MEM_RCSR_CHNL0_CONFIG_REG, + FH49_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | + FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | + FH49_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK | + rb_size | + (rb_timeout << FH49_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS) | + (rfdnlog << FH49_RCSR_RX_CONFIG_RBDCB_SIZE_POS)); + + /* Set interrupt coalescing timer to default (2048 usecs) */ + il_write8(il, CSR_INT_COALESCING, IL_HOST_INT_TIMEOUT_DEF); + + return 0; +} + +static void +il4965_set_pwr_vmain(struct il_priv *il) +{ +/* + * (for documentation purposes) + * to set power to V_AUX, do: + + if (pci_pme_capable(il->pci_dev, PCI_D3cold)) + il_set_bits_mask_prph(il, APMG_PS_CTRL_REG, + APMG_PS_CTRL_VAL_PWR_SRC_VAUX, + ~APMG_PS_CTRL_MSK_PWR_SRC); + */ + + il_set_bits_mask_prph(il, APMG_PS_CTRL_REG, + APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, + ~APMG_PS_CTRL_MSK_PWR_SRC); +} + +int +il4965_hw_nic_init(struct il_priv *il) +{ + unsigned long flags; + struct il_rx_queue *rxq = &il->rxq; + int ret; + + /* nic_init */ + spin_lock_irqsave(&il->lock, flags); + il->cfg->ops->lib->apm_ops.init(il); + + /* Set interrupt coalescing calibration timer to default (512 usecs) */ + il_write8(il, CSR_INT_COALESCING, IL_HOST_INT_CALIB_TIMEOUT_DEF); + + spin_unlock_irqrestore(&il->lock, flags); + + il4965_set_pwr_vmain(il); + + il->cfg->ops->lib->apm_ops.config(il); + + /* Allocate the RX queue, or reset if it is already allocated */ + if (!rxq->bd) { + ret = il_rx_queue_alloc(il); + if (ret) { + IL_ERR("Unable to initialize Rx queue\n"); + return -ENOMEM; + } + } else + il4965_rx_queue_reset(il, rxq); + + il4965_rx_replenish(il); + + il4965_rx_init(il, rxq); + + spin_lock_irqsave(&il->lock, flags); + + rxq->need_update = 1; + il_rx_queue_update_write_ptr(il, rxq); + + spin_unlock_irqrestore(&il->lock, flags); + + /* Allocate or reset and init all Tx and Command queues */ + if (!il->txq) { + ret = il4965_txq_ctx_alloc(il); + if (ret) + return ret; + } else + il4965_txq_ctx_reset(il); + + set_bit(S_INIT, &il->status); + + return 0; +} + +/** + * il4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr + */ +static inline __le32 +il4965_dma_addr2rbd_ptr(struct il_priv *il, dma_addr_t dma_addr) +{ + return cpu_to_le32((u32) (dma_addr >> 8)); +} + +/** + * il4965_rx_queue_restock - refill RX queue from pre-allocated pool + * + * If there are slots in the RX queue that need to be restocked, + * and we have free pre-allocated buffers, fill the ranks as much + * as we can, pulling from rx_free. + * + * This moves the 'write' idx forward to catch up with 'processed', and + * also updates the memory address in the firmware to reference the new + * target buffer. + */ +void +il4965_rx_queue_restock(struct il_priv *il) +{ + struct il_rx_queue *rxq = &il->rxq; + struct list_head *element; + struct il_rx_buf *rxb; + unsigned long flags; + + spin_lock_irqsave(&rxq->lock, flags); + while (il_rx_queue_space(rxq) > 0 && rxq->free_count) { + /* The overwritten rxb must be a used one */ + rxb = rxq->queue[rxq->write]; + BUG_ON(rxb && rxb->page); + + /* Get next free Rx buffer, remove from free list */ + element = rxq->rx_free.next; + rxb = list_entry(element, struct il_rx_buf, list); + list_del(element); + + /* Point to Rx buffer via next RBD in circular buffer */ + rxq->bd[rxq->write] = + il4965_dma_addr2rbd_ptr(il, rxb->page_dma); + rxq->queue[rxq->write] = rxb; + rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; + rxq->free_count--; + } + spin_unlock_irqrestore(&rxq->lock, flags); + /* If the pre-allocated buffer pool is dropping low, schedule to + * refill it */ + if (rxq->free_count <= RX_LOW_WATERMARK) + queue_work(il->workqueue, &il->rx_replenish); + + /* If we've added more space for the firmware to place data, tell it. + * Increment device's write pointer in multiples of 8. */ + if (rxq->write_actual != (rxq->write & ~0x7)) { + spin_lock_irqsave(&rxq->lock, flags); + rxq->need_update = 1; + spin_unlock_irqrestore(&rxq->lock, flags); + il_rx_queue_update_write_ptr(il, rxq); + } +} + +/** + * il4965_rx_replenish - Move all used packet from rx_used to rx_free + * + * When moving to rx_free an SKB is allocated for the slot. + * + * Also restock the Rx queue via il_rx_queue_restock. + * This is called as a scheduled work item (except for during initialization) + */ +static void +il4965_rx_allocate(struct il_priv *il, gfp_t priority) +{ + struct il_rx_queue *rxq = &il->rxq; + struct list_head *element; + struct il_rx_buf *rxb; + struct page *page; + unsigned long flags; + gfp_t gfp_mask = priority; + + while (1) { + spin_lock_irqsave(&rxq->lock, flags); + if (list_empty(&rxq->rx_used)) { + spin_unlock_irqrestore(&rxq->lock, flags); + return; + } + spin_unlock_irqrestore(&rxq->lock, flags); + + if (rxq->free_count > RX_LOW_WATERMARK) + gfp_mask |= __GFP_NOWARN; + + if (il->hw_params.rx_page_order > 0) + gfp_mask |= __GFP_COMP; + + /* Alloc a new receive buffer */ + page = alloc_pages(gfp_mask, il->hw_params.rx_page_order); + if (!page) { + if (net_ratelimit()) + D_INFO("alloc_pages failed, " "order: %d\n", + il->hw_params.rx_page_order); + + if (rxq->free_count <= RX_LOW_WATERMARK && + net_ratelimit()) + IL_ERR("Failed to alloc_pages with %s. " + "Only %u free buffers remaining.\n", + priority == + GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL", + rxq->free_count); + /* We don't reschedule replenish work here -- we will + * call the restock method and if it still needs + * more buffers it will schedule replenish */ + return; + } + + spin_lock_irqsave(&rxq->lock, flags); + + if (list_empty(&rxq->rx_used)) { + spin_unlock_irqrestore(&rxq->lock, flags); + __free_pages(page, il->hw_params.rx_page_order); + return; + } + element = rxq->rx_used.next; + rxb = list_entry(element, struct il_rx_buf, list); + list_del(element); + + spin_unlock_irqrestore(&rxq->lock, flags); + + BUG_ON(rxb->page); + rxb->page = page; + /* Get physical address of the RB */ + rxb->page_dma = + pci_map_page(il->pci_dev, page, 0, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + /* dma address must be no more than 36 bits */ + BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36)); + /* and also 256 byte aligned! */ + BUG_ON(rxb->page_dma & DMA_BIT_MASK(8)); + + spin_lock_irqsave(&rxq->lock, flags); + + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + il->alloc_rxb_page++; + + spin_unlock_irqrestore(&rxq->lock, flags); + } +} + +void +il4965_rx_replenish(struct il_priv *il) +{ + unsigned long flags; + + il4965_rx_allocate(il, GFP_KERNEL); + + spin_lock_irqsave(&il->lock, flags); + il4965_rx_queue_restock(il); + spin_unlock_irqrestore(&il->lock, flags); +} + +void +il4965_rx_replenish_now(struct il_priv *il) +{ + il4965_rx_allocate(il, GFP_ATOMIC); + + il4965_rx_queue_restock(il); +} + +/* Assumes that the skb field of the buffers in 'pool' is kept accurate. + * If an SKB has been detached, the POOL needs to have its SKB set to NULL + * This free routine walks the list of POOL entries and if SKB is set to + * non NULL it is unmapped and freed + */ +void +il4965_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq) +{ + int i; + for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { + if (rxq->pool[i].page != NULL) { + pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + __il_free_pages(il, rxq->pool[i].page); + rxq->pool[i].page = NULL; + } + } + + dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, + rxq->bd_dma); + dma_free_coherent(&il->pci_dev->dev, sizeof(struct il_rb_status), + rxq->rb_stts, rxq->rb_stts_dma); + rxq->bd = NULL; + rxq->rb_stts = NULL; +} + +int +il4965_rxq_stop(struct il_priv *il) +{ + + /* stop Rx DMA */ + il_wr(il, FH49_MEM_RCSR_CHNL0_CONFIG_REG, 0); + il_poll_bit(il, FH49_MEM_RSSR_RX_STATUS_REG, + FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); + + return 0; +} + +int +il4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band) +{ + int idx = 0; + int band_offset = 0; + + /* HT rate format: mac80211 wants an MCS number, which is just LSB */ + if (rate_n_flags & RATE_MCS_HT_MSK) { + idx = (rate_n_flags & 0xff); + return idx; + /* Legacy rate format, search for match in table */ + } else { + if (band == IEEE80211_BAND_5GHZ) + band_offset = IL_FIRST_OFDM_RATE; + for (idx = band_offset; idx < RATE_COUNT_LEGACY; idx++) + if (il_rates[idx].plcp == (rate_n_flags & 0xFF)) + return idx - band_offset; + } + + return -1; +} + +static int +il4965_calc_rssi(struct il_priv *il, struct il_rx_phy_res *rx_resp) +{ + /* data from PHY/DSP regarding signal strength, etc., + * contents are always there, not configurable by host. */ + struct il4965_rx_non_cfg_phy *ncphy = + (struct il4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy_buf; + u32 agc = + (le16_to_cpu(ncphy->agc_info) & IL49_AGC_DB_MASK) >> + IL49_AGC_DB_POS; + + u32 valid_antennae = + (le16_to_cpu(rx_resp->phy_flags) & IL49_RX_PHY_FLAGS_ANTENNAE_MASK) + >> IL49_RX_PHY_FLAGS_ANTENNAE_OFFSET; + u8 max_rssi = 0; + u32 i; + + /* Find max rssi among 3 possible receivers. + * These values are measured by the digital signal processor (DSP). + * They should stay fairly constant even as the signal strength varies, + * if the radio's automatic gain control (AGC) is working right. + * AGC value (see below) will provide the "interesting" info. */ + for (i = 0; i < 3; i++) + if (valid_antennae & (1 << i)) + max_rssi = max(ncphy->rssi_info[i << 1], max_rssi); + + D_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n", + ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4], + max_rssi, agc); + + /* dBm = max_rssi dB - agc dB - constant. + * Higher AGC (higher radio gain) means lower signal. */ + return max_rssi - agc - IL4965_RSSI_OFFSET; +} + +static u32 +il4965_translate_rx_status(struct il_priv *il, u32 decrypt_in) +{ + u32 decrypt_out = 0; + + if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) == + RX_RES_STATUS_STATION_FOUND) + decrypt_out |= + (RX_RES_STATUS_STATION_FOUND | + RX_RES_STATUS_NO_STATION_INFO_MISMATCH); + + decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK); + + /* packet was not encrypted */ + if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == + RX_RES_STATUS_SEC_TYPE_NONE) + return decrypt_out; + + /* packet was encrypted with unknown alg */ + if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == + RX_RES_STATUS_SEC_TYPE_ERR) + return decrypt_out; + + /* decryption was not done in HW */ + if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) != + RX_MPDU_RES_STATUS_DEC_DONE_MSK) + return decrypt_out; + + switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) { + + case RX_RES_STATUS_SEC_TYPE_CCMP: + /* alg is CCM: check MIC only */ + if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK)) + /* Bad MIC */ + decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; + else + decrypt_out |= RX_RES_STATUS_DECRYPT_OK; + + break; + + case RX_RES_STATUS_SEC_TYPE_TKIP: + if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) { + /* Bad TTAK */ + decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK; + break; + } + /* fall through if TTAK OK */ + default: + if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK)) + decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; + else + decrypt_out |= RX_RES_STATUS_DECRYPT_OK; + break; + } + + D_RX("decrypt_in:0x%x decrypt_out = 0x%x\n", decrypt_in, decrypt_out); + + return decrypt_out; +} + +static void +il4965_pass_packet_to_mac80211(struct il_priv *il, struct ieee80211_hdr *hdr, + u16 len, u32 ampdu_status, struct il_rx_buf *rxb, + struct ieee80211_rx_status *stats) +{ + struct sk_buff *skb; + __le16 fc = hdr->frame_control; + + /* We only process data packets if the interface is open */ + if (unlikely(!il->is_open)) { + D_DROP("Dropping packet while interface is not open.\n"); + return; + } + + /* In case of HW accelerated crypto and bad decryption, drop */ + if (!il->cfg->mod_params->sw_crypto && + il_set_decrypted_flag(il, hdr, ampdu_status, stats)) + return; + + skb = dev_alloc_skb(128); + if (!skb) { + IL_ERR("dev_alloc_skb failed\n"); + return; + } + + skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len); + + il_update_stats(il, false, fc, len); + memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); + + ieee80211_rx(il->hw, skb); + il->alloc_rxb_page--; + rxb->page = NULL; +} + +/* Called for N_RX (legacy ABG frames), or + * N_RX_MPDU (HT high-throughput N frames). */ +void +il4965_hdl_rx(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct ieee80211_hdr *header; + struct ieee80211_rx_status rx_status; + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_rx_phy_res *phy_res; + __le32 rx_pkt_status; + struct il_rx_mpdu_res_start *amsdu; + u32 len; + u32 ampdu_status; + u32 rate_n_flags; + + /** + * N_RX and N_RX_MPDU are handled differently. + * N_RX: physical layer info is in this buffer + * N_RX_MPDU: physical layer info was sent in separate + * command and cached in il->last_phy_res + * + * Here we set up local variables depending on which command is + * received. + */ + if (pkt->hdr.cmd == N_RX) { + phy_res = (struct il_rx_phy_res *)pkt->u.raw; + header = + (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*phy_res) + + phy_res->cfg_phy_cnt); + + len = le16_to_cpu(phy_res->byte_count); + rx_pkt_status = + *(__le32 *) (pkt->u.raw + sizeof(*phy_res) + + phy_res->cfg_phy_cnt + len); + ampdu_status = le32_to_cpu(rx_pkt_status); + } else { + if (!il->_4965.last_phy_res_valid) { + IL_ERR("MPDU frame without cached PHY data\n"); + return; + } + phy_res = &il->_4965.last_phy_res; + amsdu = (struct il_rx_mpdu_res_start *)pkt->u.raw; + header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu)); + len = le16_to_cpu(amsdu->byte_count); + rx_pkt_status = *(__le32 *) (pkt->u.raw + sizeof(*amsdu) + len); + ampdu_status = + il4965_translate_rx_status(il, le32_to_cpu(rx_pkt_status)); + } + + if ((unlikely(phy_res->cfg_phy_cnt > 20))) { + D_DROP("dsp size out of range [0,20]: %d/n", + phy_res->cfg_phy_cnt); + return; + } + + if (!(rx_pkt_status & RX_RES_STATUS_NO_CRC32_ERROR) || + !(rx_pkt_status & RX_RES_STATUS_NO_RXE_OVERFLOW)) { + D_RX("Bad CRC or FIFO: 0x%08X.\n", le32_to_cpu(rx_pkt_status)); + return; + } + + /* This will be used in several places later */ + rate_n_flags = le32_to_cpu(phy_res->rate_n_flags); + + /* rx_status carries information about the packet to mac80211 */ + rx_status.mactime = le64_to_cpu(phy_res->timestamp); + rx_status.band = + (phy_res-> + phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? IEEE80211_BAND_2GHZ : + IEEE80211_BAND_5GHZ; + rx_status.freq = + ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel), + rx_status.band); + rx_status.rate_idx = + il4965_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band); + rx_status.flag = 0; + + /* TSF isn't reliable. In order to allow smooth user experience, + * this W/A doesn't propagate it to the mac80211 */ + /*rx_status.flag |= RX_FLAG_MACTIME_MPDU; */ + + il->ucode_beacon_time = le32_to_cpu(phy_res->beacon_time_stamp); + + /* Find max signal strength (dBm) among 3 antenna/receiver chains */ + rx_status.signal = il4965_calc_rssi(il, phy_res); + + il_dbg_log_rx_data_frame(il, len, header); + D_STATS("Rssi %d, TSF %llu\n", rx_status.signal, + (unsigned long long)rx_status.mactime); + + /* + * "antenna number" + * + * It seems that the antenna field in the phy flags value + * is actually a bit field. This is undefined by radiotap, + * it wants an actual antenna number but I always get "7" + * for most legacy frames I receive indicating that the + * same frame was received on all three RX chains. + * + * I think this field should be removed in favor of a + * new 802.11n radiotap field "RX chains" that is defined + * as a bitmask. + */ + rx_status.antenna = + (le16_to_cpu(phy_res->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> + RX_RES_PHY_FLAGS_ANTENNA_POS; + + /* set the preamble flag if appropriate */ + if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) + rx_status.flag |= RX_FLAG_SHORTPRE; + + /* Set up the HT phy flags */ + if (rate_n_flags & RATE_MCS_HT_MSK) + rx_status.flag |= RX_FLAG_HT; + if (rate_n_flags & RATE_MCS_HT40_MSK) + rx_status.flag |= RX_FLAG_40MHZ; + if (rate_n_flags & RATE_MCS_SGI_MSK) + rx_status.flag |= RX_FLAG_SHORT_GI; + + il4965_pass_packet_to_mac80211(il, header, len, ampdu_status, rxb, + &rx_status); +} + +/* Cache phy data (Rx signal strength, etc) for HT frame (N_RX_PHY). + * This will be used later in il_hdl_rx() for N_RX_MPDU. */ +void +il4965_hdl_rx_phy(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + il->_4965.last_phy_res_valid = true; + memcpy(&il->_4965.last_phy_res, pkt->u.raw, + sizeof(struct il_rx_phy_res)); +} + +static int +il4965_get_channels_for_scan(struct il_priv *il, struct ieee80211_vif *vif, + enum ieee80211_band band, u8 is_active, + u8 n_probes, struct il_scan_channel *scan_ch) +{ + struct ieee80211_channel *chan; + const struct ieee80211_supported_band *sband; + const struct il_channel_info *ch_info; + u16 passive_dwell = 0; + u16 active_dwell = 0; + int added, i; + u16 channel; + + sband = il_get_hw_mode(il, band); + if (!sband) + return 0; + + active_dwell = il_get_active_dwell_time(il, band, n_probes); + passive_dwell = il_get_passive_dwell_time(il, band, vif); + + if (passive_dwell <= active_dwell) + passive_dwell = active_dwell + 1; + + for (i = 0, added = 0; i < il->scan_request->n_channels; i++) { + chan = il->scan_request->channels[i]; + + if (chan->band != band) + continue; + + channel = chan->hw_value; + scan_ch->channel = cpu_to_le16(channel); + + ch_info = il_get_channel_info(il, band, channel); + if (!il_is_channel_valid(ch_info)) { + D_SCAN("Channel %d is INVALID for this band.\n", + channel); + continue; + } + + if (!is_active || il_is_channel_passive(ch_info) || + (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) + scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; + else + scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE; + + if (n_probes) + scan_ch->type |= IL_SCAN_PROBE_MASK(n_probes); + + scan_ch->active_dwell = cpu_to_le16(active_dwell); + scan_ch->passive_dwell = cpu_to_le16(passive_dwell); + + /* Set txpower levels to defaults */ + scan_ch->dsp_atten = 110; + + /* NOTE: if we were doing 6Mb OFDM for scans we'd use + * power level: + * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3; + */ + if (band == IEEE80211_BAND_5GHZ) + scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3; + else + scan_ch->tx_gain = ((1 << 5) | (5 << 3)); + + D_SCAN("Scanning ch=%d prob=0x%X [%s %d]\n", channel, + le32_to_cpu(scan_ch->type), + (scan_ch-> + type & SCAN_CHANNEL_TYPE_ACTIVE) ? "ACTIVE" : "PASSIVE", + (scan_ch-> + type & SCAN_CHANNEL_TYPE_ACTIVE) ? active_dwell : + passive_dwell); + + scan_ch++; + added++; + } + + D_SCAN("total channels to scan %d\n", added); + return added; +} + +static inline u32 +il4965_ant_idx_to_flags(u8 ant_idx) +{ + return BIT(ant_idx) << RATE_MCS_ANT_POS; +} + +int +il4965_request_scan(struct il_priv *il, struct ieee80211_vif *vif) +{ + struct il_host_cmd cmd = { + .id = C_SCAN, + .len = sizeof(struct il_scan_cmd), + .flags = CMD_SIZE_HUGE, + }; + struct il_scan_cmd *scan; + struct il_rxon_context *ctx = &il->ctx; + u32 rate_flags = 0; + u16 cmd_len; + u16 rx_chain = 0; + enum ieee80211_band band; + u8 n_probes = 0; + u8 rx_ant = il->hw_params.valid_rx_ant; + u8 rate; + bool is_active = false; + int chan_mod; + u8 active_chains; + u8 scan_tx_antennas = il->hw_params.valid_tx_ant; + int ret; + + lockdep_assert_held(&il->mutex); + + ctx = il_rxon_ctx_from_vif(vif); + + if (!il->scan_cmd) { + il->scan_cmd = + kmalloc(sizeof(struct il_scan_cmd) + IL_MAX_SCAN_SIZE, + GFP_KERNEL); + if (!il->scan_cmd) { + D_SCAN("fail to allocate memory for scan\n"); + return -ENOMEM; + } + } + scan = il->scan_cmd; + memset(scan, 0, sizeof(struct il_scan_cmd) + IL_MAX_SCAN_SIZE); + + scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH; + scan->quiet_time = IL_ACTIVE_QUIET_TIME; + + if (il_is_any_associated(il)) { + u16 interval; + u32 extra; + u32 suspend_time = 100; + u32 scan_suspend_time = 100; + + D_INFO("Scanning while associated...\n"); + interval = vif->bss_conf.beacon_int; + + scan->suspend_time = 0; + scan->max_out_time = cpu_to_le32(200 * 1024); + if (!interval) + interval = suspend_time; + + extra = (suspend_time / interval) << 22; + scan_suspend_time = + (extra | ((suspend_time % interval) * 1024)); + scan->suspend_time = cpu_to_le32(scan_suspend_time); + D_SCAN("suspend_time 0x%X beacon interval %d\n", + scan_suspend_time, interval); + } + + if (il->scan_request->n_ssids) { + int i, p = 0; + D_SCAN("Kicking off active scan\n"); + for (i = 0; i < il->scan_request->n_ssids; i++) { + /* always does wildcard anyway */ + if (!il->scan_request->ssids[i].ssid_len) + continue; + scan->direct_scan[p].id = WLAN_EID_SSID; + scan->direct_scan[p].len = + il->scan_request->ssids[i].ssid_len; + memcpy(scan->direct_scan[p].ssid, + il->scan_request->ssids[i].ssid, + il->scan_request->ssids[i].ssid_len); + n_probes++; + p++; + } + is_active = true; + } else + D_SCAN("Start passive scan.\n"); + + scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; + scan->tx_cmd.sta_id = ctx->bcast_sta_id; + scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + + switch (il->scan_band) { + case IEEE80211_BAND_2GHZ: + scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; + chan_mod = + le32_to_cpu(il->ctx.active. + flags & RXON_FLG_CHANNEL_MODE_MSK) >> + RXON_FLG_CHANNEL_MODE_POS; + if (chan_mod == CHANNEL_MODE_PURE_40) { + rate = RATE_6M_PLCP; + } else { + rate = RATE_1M_PLCP; + rate_flags = RATE_MCS_CCK_MSK; + } + break; + case IEEE80211_BAND_5GHZ: + rate = RATE_6M_PLCP; + break; + default: + IL_WARN("Invalid scan band\n"); + return -EIO; + } + + /* + * If active scanning is requested but a certain channel is + * marked passive, we can do active scanning if we detect + * transmissions. + * + * There is an issue with some firmware versions that triggers + * a sysassert on a "good CRC threshold" of zero (== disabled), + * on a radar channel even though this means that we should NOT + * send probes. + * + * The "good CRC threshold" is the number of frames that we + * need to receive during our dwell time on a channel before + * sending out probes -- setting this to a huge value will + * mean we never reach it, but at the same time work around + * the aforementioned issue. Thus use IL_GOOD_CRC_TH_NEVER + * here instead of IL_GOOD_CRC_TH_DISABLED. + */ + scan->good_CRC_th = + is_active ? IL_GOOD_CRC_TH_DEFAULT : IL_GOOD_CRC_TH_NEVER; + + band = il->scan_band; + + if (il->cfg->scan_rx_antennas[band]) + rx_ant = il->cfg->scan_rx_antennas[band]; + + il->scan_tx_ant[band] = + il4965_toggle_tx_ant(il, il->scan_tx_ant[band], scan_tx_antennas); + rate_flags |= il4965_ant_idx_to_flags(il->scan_tx_ant[band]); + scan->tx_cmd.rate_n_flags = + il4965_hw_set_rate_n_flags(rate, rate_flags); + + /* In power save mode use one chain, otherwise use all chains */ + if (test_bit(S_POWER_PMI, &il->status)) { + /* rx_ant has been set to all valid chains previously */ + active_chains = + rx_ant & ((u8) (il->chain_noise_data.active_chains)); + if (!active_chains) + active_chains = rx_ant; + + D_SCAN("chain_noise_data.active_chains: %u\n", + il->chain_noise_data.active_chains); + + rx_ant = il4965_first_antenna(active_chains); + } + + /* MIMO is not used here, but value is required */ + rx_chain |= il->hw_params.valid_rx_ant << RXON_RX_CHAIN_VALID_POS; + rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; + rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_SEL_POS; + rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS; + scan->rx_chain = cpu_to_le16(rx_chain); + + cmd_len = + il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data, + vif->addr, il->scan_request->ie, + il->scan_request->ie_len, + IL_MAX_SCAN_SIZE - sizeof(*scan)); + scan->tx_cmd.len = cpu_to_le16(cmd_len); + + scan->filter_flags |= + (RXON_FILTER_ACCEPT_GRP_MSK | RXON_FILTER_BCON_AWARE_MSK); + + scan->channel_count = + il4965_get_channels_for_scan(il, vif, band, is_active, n_probes, + (void *)&scan->data[cmd_len]); + if (scan->channel_count == 0) { + D_SCAN("channel count %d\n", scan->channel_count); + return -EIO; + } + + cmd.len += + le16_to_cpu(scan->tx_cmd.len) + + scan->channel_count * sizeof(struct il_scan_channel); + cmd.data = scan; + scan->len = cpu_to_le16(cmd.len); + + set_bit(S_SCAN_HW, &il->status); + + ret = il_send_cmd_sync(il, &cmd); + if (ret) + clear_bit(S_SCAN_HW, &il->status); + + return ret; +} + +int +il4965_manage_ibss_station(struct il_priv *il, struct ieee80211_vif *vif, + bool add) +{ + struct il_vif_priv *vif_priv = (void *)vif->drv_priv; + + if (add) + return il4965_add_bssid_station(il, vif_priv->ctx, + vif->bss_conf.bssid, + &vif_priv->ibss_bssid_sta_id); + return il_remove_station(il, vif_priv->ibss_bssid_sta_id, + vif->bss_conf.bssid); +} + +void +il4965_free_tfds_in_queue(struct il_priv *il, int sta_id, int tid, int freed) +{ + lockdep_assert_held(&il->sta_lock); + + if (il->stations[sta_id].tid[tid].tfds_in_queue >= freed) + il->stations[sta_id].tid[tid].tfds_in_queue -= freed; + else { + D_TX("free more than tfds_in_queue (%u:%d)\n", + il->stations[sta_id].tid[tid].tfds_in_queue, freed); + il->stations[sta_id].tid[tid].tfds_in_queue = 0; + } +} + +#define IL_TX_QUEUE_MSK 0xfffff + +static bool +il4965_is_single_rx_stream(struct il_priv *il) +{ + return il->current_ht_config.smps == IEEE80211_SMPS_STATIC || + il->current_ht_config.single_chain_sufficient; +} + +#define IL_NUM_RX_CHAINS_MULTIPLE 3 +#define IL_NUM_RX_CHAINS_SINGLE 2 +#define IL_NUM_IDLE_CHAINS_DUAL 2 +#define IL_NUM_IDLE_CHAINS_SINGLE 1 + +/* + * Determine how many receiver/antenna chains to use. + * + * More provides better reception via diversity. Fewer saves power + * at the expense of throughput, but only when not in powersave to + * start with. + * + * MIMO (dual stream) requires at least 2, but works better with 3. + * This does not determine *which* chains to use, just how many. + */ +static int +il4965_get_active_rx_chain_count(struct il_priv *il) +{ + /* # of Rx chains to use when expecting MIMO. */ + if (il4965_is_single_rx_stream(il)) + return IL_NUM_RX_CHAINS_SINGLE; + else + return IL_NUM_RX_CHAINS_MULTIPLE; +} + +/* + * When we are in power saving mode, unless device support spatial + * multiplexing power save, use the active count for rx chain count. + */ +static int +il4965_get_idle_rx_chain_count(struct il_priv *il, int active_cnt) +{ + /* # Rx chains when idling, depending on SMPS mode */ + switch (il->current_ht_config.smps) { + case IEEE80211_SMPS_STATIC: + case IEEE80211_SMPS_DYNAMIC: + return IL_NUM_IDLE_CHAINS_SINGLE; + case IEEE80211_SMPS_OFF: + return active_cnt; + default: + WARN(1, "invalid SMPS mode %d", il->current_ht_config.smps); + return active_cnt; + } +} + +/* up to 4 chains */ +static u8 +il4965_count_chain_bitmap(u32 chain_bitmap) +{ + u8 res; + res = (chain_bitmap & BIT(0)) >> 0; + res += (chain_bitmap & BIT(1)) >> 1; + res += (chain_bitmap & BIT(2)) >> 2; + res += (chain_bitmap & BIT(3)) >> 3; + return res; +} + +/** + * il4965_set_rxon_chain - Set up Rx chain usage in "staging" RXON image + * + * Selects how many and which Rx receivers/antennas/chains to use. + * This should not be used for scan command ... it puts data in wrong place. + */ +void +il4965_set_rxon_chain(struct il_priv *il, struct il_rxon_context *ctx) +{ + bool is_single = il4965_is_single_rx_stream(il); + bool is_cam = !test_bit(S_POWER_PMI, &il->status); + u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; + u32 active_chains; + u16 rx_chain; + + /* Tell uCode which antennas are actually connected. + * Before first association, we assume all antennas are connected. + * Just after first association, il4965_chain_noise_calibration() + * checks which antennas actually *are* connected. */ + if (il->chain_noise_data.active_chains) + active_chains = il->chain_noise_data.active_chains; + else + active_chains = il->hw_params.valid_rx_ant; + + rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; + + /* How many receivers should we use? */ + active_rx_cnt = il4965_get_active_rx_chain_count(il); + idle_rx_cnt = il4965_get_idle_rx_chain_count(il, active_rx_cnt); + + /* correct rx chain count according hw settings + * and chain noise calibration + */ + valid_rx_cnt = il4965_count_chain_bitmap(active_chains); + if (valid_rx_cnt < active_rx_cnt) + active_rx_cnt = valid_rx_cnt; + + if (valid_rx_cnt < idle_rx_cnt) + idle_rx_cnt = valid_rx_cnt; + + rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; + rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; + + ctx->staging.rx_chain = cpu_to_le16(rx_chain); + + if (!is_single && active_rx_cnt >= IL_NUM_RX_CHAINS_SINGLE && is_cam) + ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; + else + ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; + + D_ASSOC("rx_chain=0x%X active=%d idle=%d\n", ctx->staging.rx_chain, + active_rx_cnt, idle_rx_cnt); + + WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || + active_rx_cnt < idle_rx_cnt); +} + +u8 +il4965_toggle_tx_ant(struct il_priv *il, u8 ant, u8 valid) +{ + int i; + u8 ind = ant; + + for (i = 0; i < RATE_ANT_NUM - 1; i++) { + ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; + if (valid & BIT(ind)) + return ind; + } + return ant; +} + +static const char * +il4965_get_fh_string(int cmd) +{ + switch (cmd) { + IL_CMD(FH49_RSCSR_CHNL0_STTS_WPTR_REG); + IL_CMD(FH49_RSCSR_CHNL0_RBDCB_BASE_REG); + IL_CMD(FH49_RSCSR_CHNL0_WPTR); + IL_CMD(FH49_MEM_RCSR_CHNL0_CONFIG_REG); + IL_CMD(FH49_MEM_RSSR_SHARED_CTRL_REG); + IL_CMD(FH49_MEM_RSSR_RX_STATUS_REG); + IL_CMD(FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); + IL_CMD(FH49_TSSR_TX_STATUS_REG); + IL_CMD(FH49_TSSR_TX_ERROR_REG); + default: + return "UNKNOWN"; + } +} + +int +il4965_dump_fh(struct il_priv *il, char **buf, bool display) +{ + int i; +#ifdef CONFIG_IWLEGACY_DEBUG + int pos = 0; + size_t bufsz = 0; +#endif + static const u32 fh_tbl[] = { + FH49_RSCSR_CHNL0_STTS_WPTR_REG, + FH49_RSCSR_CHNL0_RBDCB_BASE_REG, + FH49_RSCSR_CHNL0_WPTR, + FH49_MEM_RCSR_CHNL0_CONFIG_REG, + FH49_MEM_RSSR_SHARED_CTRL_REG, + FH49_MEM_RSSR_RX_STATUS_REG, + FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, + FH49_TSSR_TX_STATUS_REG, + FH49_TSSR_TX_ERROR_REG + }; +#ifdef CONFIG_IWLEGACY_DEBUG + if (display) { + bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; + *buf = kmalloc(bufsz, GFP_KERNEL); + if (!*buf) + return -ENOMEM; + pos += + scnprintf(*buf + pos, bufsz - pos, "FH register values:\n"); + for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { + pos += + scnprintf(*buf + pos, bufsz - pos, + " %34s: 0X%08x\n", + il4965_get_fh_string(fh_tbl[i]), + il_rd(il, fh_tbl[i])); + } + return pos; + } +#endif + IL_ERR("FH register values:\n"); + for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { + IL_ERR(" %34s: 0X%08x\n", il4965_get_fh_string(fh_tbl[i]), + il_rd(il, fh_tbl[i])); + } + return 0; +} + +void +il4965_hdl_missed_beacon(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_missed_beacon_notif *missed_beacon; + + missed_beacon = &pkt->u.missed_beacon; + if (le32_to_cpu(missed_beacon->consecutive_missed_beacons) > + il->missed_beacon_threshold) { + D_CALIB("missed bcn cnsq %d totl %d rcd %d expctd %d\n", + le32_to_cpu(missed_beacon->consecutive_missed_beacons), + le32_to_cpu(missed_beacon->total_missed_becons), + le32_to_cpu(missed_beacon->num_recvd_beacons), + le32_to_cpu(missed_beacon->num_expected_beacons)); + if (!test_bit(S_SCANNING, &il->status)) + il4965_init_sensitivity(il); + } +} + +/* Calculate noise level, based on measurements during network silence just + * before arriving beacon. This measurement can be done only if we know + * exactly when to expect beacons, therefore only when we're associated. */ +static void +il4965_rx_calc_noise(struct il_priv *il) +{ + struct stats_rx_non_phy *rx_info; + int num_active_rx = 0; + int total_silence = 0; + int bcn_silence_a, bcn_silence_b, bcn_silence_c; + int last_rx_noise; + + rx_info = &(il->_4965.stats.rx.general); + bcn_silence_a = + le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER; + bcn_silence_b = + le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER; + bcn_silence_c = + le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER; + + if (bcn_silence_a) { + total_silence += bcn_silence_a; + num_active_rx++; + } + if (bcn_silence_b) { + total_silence += bcn_silence_b; + num_active_rx++; + } + if (bcn_silence_c) { + total_silence += bcn_silence_c; + num_active_rx++; + } + + /* Average among active antennas */ + if (num_active_rx) + last_rx_noise = (total_silence / num_active_rx) - 107; + else + last_rx_noise = IL_NOISE_MEAS_NOT_AVAILABLE; + + D_CALIB("inband silence a %u, b %u, c %u, dBm %d\n", bcn_silence_a, + bcn_silence_b, bcn_silence_c, last_rx_noise); +} + +#ifdef CONFIG_IWLEGACY_DEBUGFS +/* + * based on the assumption of all stats counter are in DWORD + * FIXME: This function is for debugging, do not deal with + * the case of counters roll-over. + */ +static void +il4965_accumulative_stats(struct il_priv *il, __le32 * stats) +{ + int i, size; + __le32 *prev_stats; + u32 *accum_stats; + u32 *delta, *max_delta; + struct stats_general_common *general, *accum_general; + struct stats_tx *tx, *accum_tx; + + prev_stats = (__le32 *) &il->_4965.stats; + accum_stats = (u32 *) &il->_4965.accum_stats; + size = sizeof(struct il_notif_stats); + general = &il->_4965.stats.general.common; + accum_general = &il->_4965.accum_stats.general.common; + tx = &il->_4965.stats.tx; + accum_tx = &il->_4965.accum_stats.tx; + delta = (u32 *) &il->_4965.delta_stats; + max_delta = (u32 *) &il->_4965.max_delta; + + for (i = sizeof(__le32); i < size; + i += + sizeof(__le32), stats++, prev_stats++, delta++, max_delta++, + accum_stats++) { + if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) { + *delta = + (le32_to_cpu(*stats) - le32_to_cpu(*prev_stats)); + *accum_stats += *delta; + if (*delta > *max_delta) + *max_delta = *delta; + } + } + + /* reset accumulative stats for "no-counter" type stats */ + accum_general->temperature = general->temperature; + accum_general->ttl_timestamp = general->ttl_timestamp; +} +#endif + +#define REG_RECALIB_PERIOD (60) + +void +il4965_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb) +{ + int change; + struct il_rx_pkt *pkt = rxb_addr(rxb); + + D_RX("Statistics notification received (%d vs %d).\n", + (int)sizeof(struct il_notif_stats), + le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK); + + change = + ((il->_4965.stats.general.common.temperature != + pkt->u.stats.general.common.temperature) || + ((il->_4965.stats.flag & STATS_REPLY_FLG_HT40_MODE_MSK) != + (pkt->u.stats.flag & STATS_REPLY_FLG_HT40_MODE_MSK))); +#ifdef CONFIG_IWLEGACY_DEBUGFS + il4965_accumulative_stats(il, (__le32 *) &pkt->u.stats); +#endif + + /* TODO: reading some of stats is unneeded */ + memcpy(&il->_4965.stats, &pkt->u.stats, sizeof(il->_4965.stats)); + + set_bit(S_STATS, &il->status); + + /* Reschedule the stats timer to occur in + * REG_RECALIB_PERIOD seconds to ensure we get a + * thermal update even if the uCode doesn't give + * us one */ + mod_timer(&il->stats_periodic, + jiffies + msecs_to_jiffies(REG_RECALIB_PERIOD * 1000)); + + if (unlikely(!test_bit(S_SCANNING, &il->status)) && + (pkt->hdr.cmd == N_STATS)) { + il4965_rx_calc_noise(il); + queue_work(il->workqueue, &il->run_time_calib_work); + } + if (il->cfg->ops->lib->temp_ops.temperature && change) + il->cfg->ops->lib->temp_ops.temperature(il); +} + +void +il4965_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + + if (le32_to_cpu(pkt->u.stats.flag) & UCODE_STATS_CLEAR_MSK) { +#ifdef CONFIG_IWLEGACY_DEBUGFS + memset(&il->_4965.accum_stats, 0, + sizeof(struct il_notif_stats)); + memset(&il->_4965.delta_stats, 0, + sizeof(struct il_notif_stats)); + memset(&il->_4965.max_delta, 0, sizeof(struct il_notif_stats)); +#endif + D_RX("Statistics have been cleared\n"); + } + il4965_hdl_stats(il, rxb); +} + + +/* + * mac80211 queues, ACs, hardware queues, FIFOs. + * + * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues + * + * Mac80211 uses the following numbers, which we get as from it + * by way of skb_get_queue_mapping(skb): + * + * VO 0 + * VI 1 + * BE 2 + * BK 3 + * + * + * Regular (not A-MPDU) frames are put into hardware queues corresponding + * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their + * own queue per aggregation session (RA/TID combination), such queues are + * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In + * order to map frames to the right queue, we also need an AC->hw queue + * mapping. This is implemented here. + * + * Due to the way hw queues are set up (by the hw specific modules like + * 4965.c), the AC->hw queue mapping is the identity + * mapping. + */ + +static const u8 tid_to_ac[] = { + IEEE80211_AC_BE, + IEEE80211_AC_BK, + IEEE80211_AC_BK, + IEEE80211_AC_BE, + IEEE80211_AC_VI, + IEEE80211_AC_VI, + IEEE80211_AC_VO, + IEEE80211_AC_VO +}; + +static inline int +il4965_get_ac_from_tid(u16 tid) +{ + if (likely(tid < ARRAY_SIZE(tid_to_ac))) + return tid_to_ac[tid]; + + /* no support for TIDs 8-15 yet */ + return -EINVAL; +} + +static inline int +il4965_get_fifo_from_tid(struct il_rxon_context *ctx, u16 tid) +{ + if (likely(tid < ARRAY_SIZE(tid_to_ac))) + return ctx->ac_to_fifo[tid_to_ac[tid]]; + + /* no support for TIDs 8-15 yet */ + return -EINVAL; +} + +/* + * handle build C_TX command notification. + */ +static void +il4965_tx_cmd_build_basic(struct il_priv *il, struct sk_buff *skb, + struct il_tx_cmd *tx_cmd, + struct ieee80211_tx_info *info, + struct ieee80211_hdr *hdr, u8 std_id) +{ + __le16 fc = hdr->frame_control; + __le32 tx_flags = tx_cmd->tx_flags; + + tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { + tx_flags |= TX_CMD_FLG_ACK_MSK; + if (ieee80211_is_mgmt(fc)) + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + if (ieee80211_is_probe_resp(fc) && + !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) + tx_flags |= TX_CMD_FLG_TSF_MSK; + } else { + tx_flags &= (~TX_CMD_FLG_ACK_MSK); + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + } + + if (ieee80211_is_back_req(fc)) + tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK; + + tx_cmd->sta_id = std_id; + if (ieee80211_has_morefrags(fc)) + tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; + + if (ieee80211_is_data_qos(fc)) { + u8 *qc = ieee80211_get_qos_ctl(hdr); + tx_cmd->tid_tspec = qc[0] & 0xf; + tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; + } else { + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + } + + il_tx_cmd_protection(il, info, fc, &tx_flags); + + tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); + if (ieee80211_is_mgmt(fc)) { + if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) + tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); + else + tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); + } else { + tx_cmd->timeout.pm_frame_timeout = 0; + } + + tx_cmd->driver_txop = 0; + tx_cmd->tx_flags = tx_flags; + tx_cmd->next_frame_len = 0; +} + +#define RTS_DFAULT_RETRY_LIMIT 60 + +static void +il4965_tx_cmd_build_rate(struct il_priv *il, struct il_tx_cmd *tx_cmd, + struct ieee80211_tx_info *info, __le16 fc) +{ + u32 rate_flags; + int rate_idx; + u8 rts_retry_limit; + u8 data_retry_limit; + u8 rate_plcp; + + /* Set retry limit on DATA packets and Probe Responses */ + if (ieee80211_is_probe_resp(fc)) + data_retry_limit = 3; + else + data_retry_limit = IL4965_DEFAULT_TX_RETRY; + tx_cmd->data_retry_limit = data_retry_limit; + + /* Set retry limit on RTS packets */ + rts_retry_limit = RTS_DFAULT_RETRY_LIMIT; + if (data_retry_limit < rts_retry_limit) + rts_retry_limit = data_retry_limit; + tx_cmd->rts_retry_limit = rts_retry_limit; + + /* DATA packets will use the uCode station table for rate/antenna + * selection */ + if (ieee80211_is_data(fc)) { + tx_cmd->initial_rate_idx = 0; + tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK; + return; + } + + /** + * If the current TX rate stored in mac80211 has the MCS bit set, it's + * not really a TX rate. Thus, we use the lowest supported rate for + * this band. Also use the lowest supported rate if the stored rate + * idx is invalid. + */ + rate_idx = info->control.rates[0].idx; + if ((info->control.rates[0].flags & IEEE80211_TX_RC_MCS) || rate_idx < 0 + || rate_idx > RATE_COUNT_LEGACY) + rate_idx = + rate_lowest_index(&il->bands[info->band], + info->control.sta); + /* For 5 GHZ band, remap mac80211 rate indices into driver indices */ + if (info->band == IEEE80211_BAND_5GHZ) + rate_idx += IL_FIRST_OFDM_RATE; + /* Get PLCP rate for tx_cmd->rate_n_flags */ + rate_plcp = il_rates[rate_idx].plcp; + /* Zero out flags for this packet */ + rate_flags = 0; + + /* Set CCK flag as needed */ + if (rate_idx >= IL_FIRST_CCK_RATE && rate_idx <= IL_LAST_CCK_RATE) + rate_flags |= RATE_MCS_CCK_MSK; + + /* Set up antennas */ + il->mgmt_tx_ant = + il4965_toggle_tx_ant(il, il->mgmt_tx_ant, + il->hw_params.valid_tx_ant); + + rate_flags |= il4965_ant_idx_to_flags(il->mgmt_tx_ant); + + /* Set the rate in the TX cmd */ + tx_cmd->rate_n_flags = + il4965_hw_set_rate_n_flags(rate_plcp, rate_flags); +} + +static void +il4965_tx_cmd_build_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info, + struct il_tx_cmd *tx_cmd, struct sk_buff *skb_frag, + int sta_id) +{ + struct ieee80211_key_conf *keyconf = info->control.hw_key; + + switch (keyconf->cipher) { + case WLAN_CIPHER_SUITE_CCMP: + tx_cmd->sec_ctl = TX_CMD_SEC_CCM; + memcpy(tx_cmd->key, keyconf->key, keyconf->keylen); + if (info->flags & IEEE80211_TX_CTL_AMPDU) + tx_cmd->tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK; + D_TX("tx_cmd with AES hwcrypto\n"); + break; + + case WLAN_CIPHER_SUITE_TKIP: + tx_cmd->sec_ctl = TX_CMD_SEC_TKIP; + ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key); + D_TX("tx_cmd with tkip hwcrypto\n"); + break; + + case WLAN_CIPHER_SUITE_WEP104: + tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; + /* fall through */ + case WLAN_CIPHER_SUITE_WEP40: + tx_cmd->sec_ctl |= + (TX_CMD_SEC_WEP | (keyconf->keyidx & TX_CMD_SEC_MSK) << + TX_CMD_SEC_SHIFT); + + memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen); + + D_TX("Configuring packet for WEP encryption " "with key %d\n", + keyconf->keyidx); + break; + + default: + IL_ERR("Unknown encode cipher %x\n", keyconf->cipher); + break; + } +} + +/* + * start C_TX command process + */ +int +il4965_tx_skb(struct il_priv *il, struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_sta *sta = info->control.sta; + struct il_station_priv *sta_priv = NULL; + struct il_tx_queue *txq; + struct il_queue *q; + struct il_device_cmd *out_cmd; + struct il_cmd_meta *out_meta; + struct il_tx_cmd *tx_cmd; + struct il_rxon_context *ctx = &il->ctx; + int txq_id; + dma_addr_t phys_addr; + dma_addr_t txcmd_phys; + dma_addr_t scratch_phys; + u16 len, firstlen, secondlen; + u16 seq_number = 0; + __le16 fc; + u8 hdr_len; + u8 sta_id; + u8 wait_write_ptr = 0; + u8 tid = 0; + u8 *qc = NULL; + unsigned long flags; + bool is_agg = false; + + if (info->control.vif) + ctx = il_rxon_ctx_from_vif(info->control.vif); + + spin_lock_irqsave(&il->lock, flags); + if (il_is_rfkill(il)) { + D_DROP("Dropping - RF KILL\n"); + goto drop_unlock; + } + + fc = hdr->frame_control; + +#ifdef CONFIG_IWLEGACY_DEBUG + if (ieee80211_is_auth(fc)) + D_TX("Sending AUTH frame\n"); + else if (ieee80211_is_assoc_req(fc)) + D_TX("Sending ASSOC frame\n"); + else if (ieee80211_is_reassoc_req(fc)) + D_TX("Sending REASSOC frame\n"); +#endif + + hdr_len = ieee80211_hdrlen(fc); + + /* For management frames use broadcast id to do not break aggregation */ + if (!ieee80211_is_data(fc)) + sta_id = ctx->bcast_sta_id; + else { + /* Find idx into station table for destination station */ + sta_id = il_sta_id_or_broadcast(il, ctx, info->control.sta); + + if (sta_id == IL_INVALID_STATION) { + D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1); + goto drop_unlock; + } + } + + D_TX("station Id %d\n", sta_id); + + if (sta) + sta_priv = (void *)sta->drv_priv; + + if (sta_priv && sta_priv->asleep && + (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) { + /* + * This sends an asynchronous command to the device, + * but we can rely on it being processed before the + * next frame is processed -- and the next frame to + * this station is the one that will consume this + * counter. + * For now set the counter to just 1 since we do not + * support uAPSD yet. + */ + il4965_sta_modify_sleep_tx_count(il, sta_id, 1); + } + + /* + * Send this frame after DTIM -- there's a special queue + * reserved for this for contexts that support AP mode. + */ + if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) { + txq_id = ctx->mcast_queue; + /* + * The microcode will clear the more data + * bit in the last frame it transmits. + */ + hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA); + } else + txq_id = ctx->ac_to_queue[skb_get_queue_mapping(skb)]; + + /* irqs already disabled/saved above when locking il->lock */ + spin_lock(&il->sta_lock); + + if (ieee80211_is_data_qos(fc)) { + qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; + if (WARN_ON_ONCE(tid >= MAX_TID_COUNT)) { + spin_unlock(&il->sta_lock); + goto drop_unlock; + } + seq_number = il->stations[sta_id].tid[tid].seq_number; + seq_number &= IEEE80211_SCTL_SEQ; + hdr->seq_ctrl = + hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG); + hdr->seq_ctrl |= cpu_to_le16(seq_number); + seq_number += 0x10; + /* aggregation is on for this <sta,tid> */ + if (info->flags & IEEE80211_TX_CTL_AMPDU && + il->stations[sta_id].tid[tid].agg.state == IL_AGG_ON) { + txq_id = il->stations[sta_id].tid[tid].agg.txq_id; + is_agg = true; + } + } + + txq = &il->txq[txq_id]; + q = &txq->q; + + if (unlikely(il_queue_space(q) < q->high_mark)) { + spin_unlock(&il->sta_lock); + goto drop_unlock; + } + + if (ieee80211_is_data_qos(fc)) { + il->stations[sta_id].tid[tid].tfds_in_queue++; + if (!ieee80211_has_morefrags(fc)) + il->stations[sta_id].tid[tid].seq_number = seq_number; + } + + spin_unlock(&il->sta_lock); + + /* Set up driver data for this TFD */ + memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct il_tx_info)); + txq->txb[q->write_ptr].skb = skb; + txq->txb[q->write_ptr].ctx = ctx; + + /* Set up first empty entry in queue's array of Tx/cmd buffers */ + out_cmd = txq->cmd[q->write_ptr]; + out_meta = &txq->meta[q->write_ptr]; + tx_cmd = &out_cmd->cmd.tx; + memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); + memset(tx_cmd, 0, sizeof(struct il_tx_cmd)); + + /* + * Set up the Tx-command (not MAC!) header. + * Store the chosen Tx queue and TFD idx within the sequence field; + * after Tx, uCode's Tx response will return this value so driver can + * locate the frame within the tx queue and do post-tx processing. + */ + out_cmd->hdr.cmd = C_TX; + out_cmd->hdr.sequence = + cpu_to_le16((u16) + (QUEUE_TO_SEQ(txq_id) | IDX_TO_SEQ(q->write_ptr))); + + /* Copy MAC header from skb into command buffer */ + memcpy(tx_cmd->hdr, hdr, hdr_len); + + /* Total # bytes to be transmitted */ + len = (u16) skb->len; + tx_cmd->len = cpu_to_le16(len); + + if (info->control.hw_key) + il4965_tx_cmd_build_hwcrypto(il, info, tx_cmd, skb, sta_id); + + /* TODO need this for burst mode later on */ + il4965_tx_cmd_build_basic(il, skb, tx_cmd, info, hdr, sta_id); + il_dbg_log_tx_data_frame(il, len, hdr); + + il4965_tx_cmd_build_rate(il, tx_cmd, info, fc); + + il_update_stats(il, true, fc, len); + /* + * Use the first empty entry in this queue's command buffer array + * to contain the Tx command and MAC header concatenated together + * (payload data will be in another buffer). + * Size of this varies, due to varying MAC header length. + * If end is not dword aligned, we'll have 2 extra bytes at the end + * of the MAC header (device reads on dword boundaries). + * We'll tell device about this padding later. + */ + len = sizeof(struct il_tx_cmd) + sizeof(struct il_cmd_header) + hdr_len; + firstlen = (len + 3) & ~3; + + /* Tell NIC about any 2-byte padding after MAC header */ + if (firstlen != len) + tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK; + + /* Physical address of this Tx command's header (not MAC header!), + * within command buffer array. */ + txcmd_phys = + pci_map_single(il->pci_dev, &out_cmd->hdr, firstlen, + PCI_DMA_BIDIRECTIONAL); + dma_unmap_addr_set(out_meta, mapping, txcmd_phys); + dma_unmap_len_set(out_meta, len, firstlen); + /* Add buffer containing Tx command and MAC(!) header to TFD's + * first entry */ + il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, txcmd_phys, firstlen, + 1, 0); + + if (!ieee80211_has_morefrags(hdr->frame_control)) { + txq->need_update = 1; + } else { + wait_write_ptr = 1; + txq->need_update = 0; + } + + /* Set up TFD's 2nd entry to point directly to remainder of skb, + * if any (802.11 null frames have no payload). */ + secondlen = skb->len - hdr_len; + if (secondlen > 0) { + phys_addr = + pci_map_single(il->pci_dev, skb->data + hdr_len, secondlen, + PCI_DMA_TODEVICE); + il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr, + secondlen, 0, 0); + } + + scratch_phys = + txcmd_phys + sizeof(struct il_cmd_header) + + offsetof(struct il_tx_cmd, scratch); + + /* take back ownership of DMA buffer to enable update */ + pci_dma_sync_single_for_cpu(il->pci_dev, txcmd_phys, firstlen, + PCI_DMA_BIDIRECTIONAL); + tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys); + tx_cmd->dram_msb_ptr = il_get_dma_hi_addr(scratch_phys); + + D_TX("sequence nr = 0X%x\n", le16_to_cpu(out_cmd->hdr.sequence)); + D_TX("tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); + il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd, sizeof(*tx_cmd)); + il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd->hdr, hdr_len); + + /* Set up entry for this TFD in Tx byte-count array */ + if (info->flags & IEEE80211_TX_CTL_AMPDU) + il->cfg->ops->lib->txq_update_byte_cnt_tbl(il, txq, + le16_to_cpu(tx_cmd-> + len)); + + pci_dma_sync_single_for_device(il->pci_dev, txcmd_phys, firstlen, + PCI_DMA_BIDIRECTIONAL); + + /* Tell device the write idx *just past* this latest filled TFD */ + q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd); + il_txq_update_write_ptr(il, txq); + spin_unlock_irqrestore(&il->lock, flags); + + /* + * At this point the frame is "transmitted" successfully + * and we will get a TX status notification eventually, + * regardless of the value of ret. "ret" only indicates + * whether or not we should update the write pointer. + */ + + /* + * Avoid atomic ops if it isn't an associated client. + * Also, if this is a packet for aggregation, don't + * increase the counter because the ucode will stop + * aggregation queues when their respective station + * goes to sleep. + */ + if (sta_priv && sta_priv->client && !is_agg) + atomic_inc(&sta_priv->pending_frames); + + if (il_queue_space(q) < q->high_mark && il->mac80211_registered) { + if (wait_write_ptr) { + spin_lock_irqsave(&il->lock, flags); + txq->need_update = 1; + il_txq_update_write_ptr(il, txq); + spin_unlock_irqrestore(&il->lock, flags); + } else { + il_stop_queue(il, txq); + } + } + + return 0; + +drop_unlock: + spin_unlock_irqrestore(&il->lock, flags); + return -1; +} + +static inline int +il4965_alloc_dma_ptr(struct il_priv *il, struct il_dma_ptr *ptr, size_t size) +{ + ptr->addr = + dma_alloc_coherent(&il->pci_dev->dev, size, &ptr->dma, GFP_KERNEL); + if (!ptr->addr) + return -ENOMEM; + ptr->size = size; + return 0; +} + +static inline void +il4965_free_dma_ptr(struct il_priv *il, struct il_dma_ptr *ptr) +{ + if (unlikely(!ptr->addr)) + return; + + dma_free_coherent(&il->pci_dev->dev, ptr->size, ptr->addr, ptr->dma); + memset(ptr, 0, sizeof(*ptr)); +} + +/** + * il4965_hw_txq_ctx_free - Free TXQ Context + * + * Destroy all TX DMA queues and structures + */ +void +il4965_hw_txq_ctx_free(struct il_priv *il) +{ + int txq_id; + + /* Tx queues */ + if (il->txq) { + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) + if (txq_id == il->cmd_queue) + il_cmd_queue_free(il); + else + il_tx_queue_free(il, txq_id); + } + il4965_free_dma_ptr(il, &il->kw); + + il4965_free_dma_ptr(il, &il->scd_bc_tbls); + + /* free tx queue structure */ + il_txq_mem(il); +} + +/** + * il4965_txq_ctx_alloc - allocate TX queue context + * Allocate all Tx DMA structures and initialize them + * + * @param il + * @return error code + */ +int +il4965_txq_ctx_alloc(struct il_priv *il) +{ + int ret; + int txq_id, slots_num; + unsigned long flags; + + /* Free all tx/cmd queues and keep-warm buffer */ + il4965_hw_txq_ctx_free(il); + + ret = + il4965_alloc_dma_ptr(il, &il->scd_bc_tbls, + il->hw_params.scd_bc_tbls_size); + if (ret) { + IL_ERR("Scheduler BC Table allocation failed\n"); + goto error_bc_tbls; + } + /* Alloc keep-warm buffer */ + ret = il4965_alloc_dma_ptr(il, &il->kw, IL_KW_SIZE); + if (ret) { + IL_ERR("Keep Warm allocation failed\n"); + goto error_kw; + } + + /* allocate tx queue structure */ + ret = il_alloc_txq_mem(il); + if (ret) + goto error; + + spin_lock_irqsave(&il->lock, flags); + + /* Turn off all Tx DMA fifos */ + il4965_txq_set_sched(il, 0); + + /* Tell NIC where to find the "keep warm" buffer */ + il_wr(il, FH49_KW_MEM_ADDR_REG, il->kw.dma >> 4); + + spin_unlock_irqrestore(&il->lock, flags); + + /* Alloc and init all Tx queues, including the command queue (#4/#9) */ + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { + slots_num = + (txq_id == + il->cmd_queue) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + ret = il_tx_queue_init(il, &il->txq[txq_id], slots_num, txq_id); + if (ret) { + IL_ERR("Tx %d queue init failed\n", txq_id); + goto error; + } + } + + return ret; + +error: + il4965_hw_txq_ctx_free(il); + il4965_free_dma_ptr(il, &il->kw); +error_kw: + il4965_free_dma_ptr(il, &il->scd_bc_tbls); +error_bc_tbls: + return ret; +} + +void +il4965_txq_ctx_reset(struct il_priv *il) +{ + int txq_id, slots_num; + unsigned long flags; + + spin_lock_irqsave(&il->lock, flags); + + /* Turn off all Tx DMA fifos */ + il4965_txq_set_sched(il, 0); + + /* Tell NIC where to find the "keep warm" buffer */ + il_wr(il, FH49_KW_MEM_ADDR_REG, il->kw.dma >> 4); + + spin_unlock_irqrestore(&il->lock, flags); + + /* Alloc and init all Tx queues, including the command queue (#4) */ + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { + slots_num = + txq_id == il->cmd_queue ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + il_tx_queue_reset(il, &il->txq[txq_id], slots_num, txq_id); + } +} + +/** + * il4965_txq_ctx_stop - Stop all Tx DMA channels + */ +void +il4965_txq_ctx_stop(struct il_priv *il) +{ + int ch, txq_id; + unsigned long flags; + + /* Turn off all Tx DMA fifos */ + spin_lock_irqsave(&il->lock, flags); + + il4965_txq_set_sched(il, 0); + + /* Stop each Tx DMA channel, and wait for it to be idle */ + for (ch = 0; ch < il->hw_params.dma_chnl_num; ch++) { + il_wr(il, FH49_TCSR_CHNL_TX_CONFIG_REG(ch), 0x0); + if (il_poll_bit + (il, FH49_TSSR_TX_STATUS_REG, + FH49_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ch), 1000)) + IL_ERR("Failing on timeout while stopping" + " DMA channel %d [0x%08x]", ch, + il_rd(il, FH49_TSSR_TX_STATUS_REG)); + } + spin_unlock_irqrestore(&il->lock, flags); + + if (!il->txq) + return; + + /* Unmap DMA from host system and free skb's */ + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) + if (txq_id == il->cmd_queue) + il_cmd_queue_unmap(il); + else + il_tx_queue_unmap(il, txq_id); +} + +/* + * Find first available (lowest unused) Tx Queue, mark it "active". + * Called only when finding queue for aggregation. + * Should never return anything < 7, because they should already + * be in use as EDCA AC (0-3), Command (4), reserved (5, 6) + */ +static int +il4965_txq_ctx_activate_free(struct il_priv *il) +{ + int txq_id; + + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) + if (!test_and_set_bit(txq_id, &il->txq_ctx_active_msk)) + return txq_id; + return -1; +} + +/** + * il4965_tx_queue_stop_scheduler - Stop queue, but keep configuration + */ +static void +il4965_tx_queue_stop_scheduler(struct il_priv *il, u16 txq_id) +{ + /* Simply stop the queue, but don't change any configuration; + * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ + il_wr_prph(il, IL49_SCD_QUEUE_STATUS_BITS(txq_id), + (0 << IL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) | + (1 << IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); +} + +/** + * il4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue + */ +static int +il4965_tx_queue_set_q2ratid(struct il_priv *il, u16 ra_tid, u16 txq_id) +{ + u32 tbl_dw_addr; + u32 tbl_dw; + u16 scd_q2ratid; + + scd_q2ratid = ra_tid & IL_SCD_QUEUE_RA_TID_MAP_RATID_MSK; + + tbl_dw_addr = + il->scd_base_addr + IL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id); + + tbl_dw = il_read_targ_mem(il, tbl_dw_addr); + + if (txq_id & 0x1) + tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); + else + tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); + + il_write_targ_mem(il, tbl_dw_addr, tbl_dw); + + return 0; +} + +/** + * il4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue + * + * NOTE: txq_id must be greater than IL49_FIRST_AMPDU_QUEUE, + * i.e. it must be one of the higher queues used for aggregation + */ +static int +il4965_txq_agg_enable(struct il_priv *il, int txq_id, int tx_fifo, int sta_id, + int tid, u16 ssn_idx) +{ + unsigned long flags; + u16 ra_tid; + int ret; + + if ((IL49_FIRST_AMPDU_QUEUE > txq_id) || + (IL49_FIRST_AMPDU_QUEUE + + il->cfg->base_params->num_of_ampdu_queues <= txq_id)) { + IL_WARN("queue number out of range: %d, must be %d to %d\n", + txq_id, IL49_FIRST_AMPDU_QUEUE, + IL49_FIRST_AMPDU_QUEUE + + il->cfg->base_params->num_of_ampdu_queues - 1); + return -EINVAL; + } + + ra_tid = BUILD_RAxTID(sta_id, tid); + + /* Modify device's station table to Tx this TID */ + ret = il4965_sta_tx_modify_enable_tid(il, sta_id, tid); + if (ret) + return ret; + + spin_lock_irqsave(&il->lock, flags); + + /* Stop this Tx queue before configuring it */ + il4965_tx_queue_stop_scheduler(il, txq_id); + + /* Map receiver-address / traffic-ID to this queue */ + il4965_tx_queue_set_q2ratid(il, ra_tid, txq_id); + + /* Set this queue as a chain-building queue */ + il_set_bits_prph(il, IL49_SCD_QUEUECHAIN_SEL, (1 << txq_id)); + + /* Place first TFD at idx corresponding to start sequence number. + * Assumes that ssn_idx is valid (!= 0xFFF) */ + il->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); + il->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); + il4965_set_wr_ptrs(il, txq_id, ssn_idx); + + /* Set up Tx win size and frame limit for this queue */ + il_write_targ_mem(il, + il->scd_base_addr + + IL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id), + (SCD_WIN_SIZE << IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) + & IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK); + + il_write_targ_mem(il, + il->scd_base_addr + + IL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32), + (SCD_FRAME_LIMIT << + IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & + IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK); + + il_set_bits_prph(il, IL49_SCD_INTERRUPT_MASK, (1 << txq_id)); + + /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ + il4965_tx_queue_set_status(il, &il->txq[txq_id], tx_fifo, 1); + + spin_unlock_irqrestore(&il->lock, flags); + + return 0; +} + +int +il4965_tx_agg_start(struct il_priv *il, struct ieee80211_vif *vif, + struct ieee80211_sta *sta, u16 tid, u16 * ssn) +{ + int sta_id; + int tx_fifo; + int txq_id; + int ret; + unsigned long flags; + struct il_tid_data *tid_data; + + tx_fifo = il4965_get_fifo_from_tid(il_rxon_ctx_from_vif(vif), tid); + if (unlikely(tx_fifo < 0)) + return tx_fifo; + + D_HT("%s on ra = %pM tid = %d\n", __func__, sta->addr, tid); + + sta_id = il_sta_id(sta); + if (sta_id == IL_INVALID_STATION) { + IL_ERR("Start AGG on invalid station\n"); + return -ENXIO; + } + if (unlikely(tid >= MAX_TID_COUNT)) + return -EINVAL; + + if (il->stations[sta_id].tid[tid].agg.state != IL_AGG_OFF) { + IL_ERR("Start AGG when state is not IL_AGG_OFF !\n"); + return -ENXIO; + } + + txq_id = il4965_txq_ctx_activate_free(il); + if (txq_id == -1) { + IL_ERR("No free aggregation queue available\n"); + return -ENXIO; + } + + spin_lock_irqsave(&il->sta_lock, flags); + tid_data = &il->stations[sta_id].tid[tid]; + *ssn = SEQ_TO_SN(tid_data->seq_number); + tid_data->agg.txq_id = txq_id; + il_set_swq_id(&il->txq[txq_id], il4965_get_ac_from_tid(tid), txq_id); + spin_unlock_irqrestore(&il->sta_lock, flags); + + ret = il4965_txq_agg_enable(il, txq_id, tx_fifo, sta_id, tid, *ssn); + if (ret) + return ret; + + spin_lock_irqsave(&il->sta_lock, flags); + tid_data = &il->stations[sta_id].tid[tid]; + if (tid_data->tfds_in_queue == 0) { + D_HT("HW queue is empty\n"); + tid_data->agg.state = IL_AGG_ON; + ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); + } else { + D_HT("HW queue is NOT empty: %d packets in HW queue\n", + tid_data->tfds_in_queue); + tid_data->agg.state = IL_EMPTYING_HW_QUEUE_ADDBA; + } + spin_unlock_irqrestore(&il->sta_lock, flags); + return ret; +} + +/** + * txq_id must be greater than IL49_FIRST_AMPDU_QUEUE + * il->lock must be held by the caller + */ +static int +il4965_txq_agg_disable(struct il_priv *il, u16 txq_id, u16 ssn_idx, u8 tx_fifo) +{ + if ((IL49_FIRST_AMPDU_QUEUE > txq_id) || + (IL49_FIRST_AMPDU_QUEUE + + il->cfg->base_params->num_of_ampdu_queues <= txq_id)) { + IL_WARN("queue number out of range: %d, must be %d to %d\n", + txq_id, IL49_FIRST_AMPDU_QUEUE, + IL49_FIRST_AMPDU_QUEUE + + il->cfg->base_params->num_of_ampdu_queues - 1); + return -EINVAL; + } + + il4965_tx_queue_stop_scheduler(il, txq_id); + + il_clear_bits_prph(il, IL49_SCD_QUEUECHAIN_SEL, (1 << txq_id)); + + il->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); + il->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); + /* supposes that ssn_idx is valid (!= 0xFFF) */ + il4965_set_wr_ptrs(il, txq_id, ssn_idx); + + il_clear_bits_prph(il, IL49_SCD_INTERRUPT_MASK, (1 << txq_id)); + il_txq_ctx_deactivate(il, txq_id); + il4965_tx_queue_set_status(il, &il->txq[txq_id], tx_fifo, 0); + + return 0; +} + +int +il4965_tx_agg_stop(struct il_priv *il, struct ieee80211_vif *vif, + struct ieee80211_sta *sta, u16 tid) +{ + int tx_fifo_id, txq_id, sta_id, ssn; + struct il_tid_data *tid_data; + int write_ptr, read_ptr; + unsigned long flags; + + tx_fifo_id = il4965_get_fifo_from_tid(il_rxon_ctx_from_vif(vif), tid); + if (unlikely(tx_fifo_id < 0)) + return tx_fifo_id; + + sta_id = il_sta_id(sta); + + if (sta_id == IL_INVALID_STATION) { + IL_ERR("Invalid station for AGG tid %d\n", tid); + return -ENXIO; + } + + spin_lock_irqsave(&il->sta_lock, flags); + + tid_data = &il->stations[sta_id].tid[tid]; + ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4; + txq_id = tid_data->agg.txq_id; + + switch (il->stations[sta_id].tid[tid].agg.state) { + case IL_EMPTYING_HW_QUEUE_ADDBA: + /* + * This can happen if the peer stops aggregation + * again before we've had a chance to drain the + * queue we selected previously, i.e. before the + * session was really started completely. + */ + D_HT("AGG stop before setup done\n"); + goto turn_off; + case IL_AGG_ON: + break; + default: + IL_WARN("Stopping AGG while state not ON or starting\n"); + } + + write_ptr = il->txq[txq_id].q.write_ptr; + read_ptr = il->txq[txq_id].q.read_ptr; + + /* The queue is not empty */ + if (write_ptr != read_ptr) { + D_HT("Stopping a non empty AGG HW QUEUE\n"); + il->stations[sta_id].tid[tid].agg.state = + IL_EMPTYING_HW_QUEUE_DELBA; + spin_unlock_irqrestore(&il->sta_lock, flags); + return 0; + } + + D_HT("HW queue is empty\n"); +turn_off: + il->stations[sta_id].tid[tid].agg.state = IL_AGG_OFF; + + /* do not restore/save irqs */ + spin_unlock(&il->sta_lock); + spin_lock(&il->lock); + + /* + * the only reason this call can fail is queue number out of range, + * which can happen if uCode is reloaded and all the station + * information are lost. if it is outside the range, there is no need + * to deactivate the uCode queue, just return "success" to allow + * mac80211 to clean up it own data. + */ + il4965_txq_agg_disable(il, txq_id, ssn, tx_fifo_id); + spin_unlock_irqrestore(&il->lock, flags); + + ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); + + return 0; +} + +int +il4965_txq_check_empty(struct il_priv *il, int sta_id, u8 tid, int txq_id) +{ + struct il_queue *q = &il->txq[txq_id].q; + u8 *addr = il->stations[sta_id].sta.sta.addr; + struct il_tid_data *tid_data = &il->stations[sta_id].tid[tid]; + struct il_rxon_context *ctx; + + ctx = &il->ctx; + + lockdep_assert_held(&il->sta_lock); + + switch (il->stations[sta_id].tid[tid].agg.state) { + case IL_EMPTYING_HW_QUEUE_DELBA: + /* We are reclaiming the last packet of the */ + /* aggregated HW queue */ + if (txq_id == tid_data->agg.txq_id && + q->read_ptr == q->write_ptr) { + u16 ssn = SEQ_TO_SN(tid_data->seq_number); + int tx_fifo = il4965_get_fifo_from_tid(ctx, tid); + D_HT("HW queue empty: continue DELBA flow\n"); + il4965_txq_agg_disable(il, txq_id, ssn, tx_fifo); + tid_data->agg.state = IL_AGG_OFF; + ieee80211_stop_tx_ba_cb_irqsafe(ctx->vif, addr, tid); + } + break; + case IL_EMPTYING_HW_QUEUE_ADDBA: + /* We are reclaiming the last packet of the queue */ + if (tid_data->tfds_in_queue == 0) { + D_HT("HW queue empty: continue ADDBA flow\n"); + tid_data->agg.state = IL_AGG_ON; + ieee80211_start_tx_ba_cb_irqsafe(ctx->vif, addr, tid); + } + break; + } + + return 0; +} + +static void +il4965_non_agg_tx_status(struct il_priv *il, struct il_rxon_context *ctx, + const u8 *addr1) +{ + struct ieee80211_sta *sta; + struct il_station_priv *sta_priv; + + rcu_read_lock(); + sta = ieee80211_find_sta(ctx->vif, addr1); + if (sta) { + sta_priv = (void *)sta->drv_priv; + /* avoid atomic ops if this isn't a client */ + if (sta_priv->client && + atomic_dec_return(&sta_priv->pending_frames) == 0) + ieee80211_sta_block_awake(il->hw, sta, false); + } + rcu_read_unlock(); +} + +static void +il4965_tx_status(struct il_priv *il, struct il_tx_info *tx_info, bool is_agg) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data; + + if (!is_agg) + il4965_non_agg_tx_status(il, tx_info->ctx, hdr->addr1); + + ieee80211_tx_status_irqsafe(il->hw, tx_info->skb); +} + +int +il4965_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx) +{ + struct il_tx_queue *txq = &il->txq[txq_id]; + struct il_queue *q = &txq->q; + struct il_tx_info *tx_info; + int nfreed = 0; + struct ieee80211_hdr *hdr; + + if (idx >= q->n_bd || il_queue_used(q, idx) == 0) { + IL_ERR("Read idx for DMA queue txq id (%d), idx %d, " + "is out of range [0-%d] %d %d.\n", txq_id, idx, q->n_bd, + q->write_ptr, q->read_ptr); + return 0; + } + + for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx; + q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) { + + tx_info = &txq->txb[txq->q.read_ptr]; + + if (WARN_ON_ONCE(tx_info->skb == NULL)) + continue; + + hdr = (struct ieee80211_hdr *)tx_info->skb->data; + if (ieee80211_is_data_qos(hdr->frame_control)) + nfreed++; + + il4965_tx_status(il, tx_info, + txq_id >= IL4965_FIRST_AMPDU_QUEUE); + tx_info->skb = NULL; + + il->cfg->ops->lib->txq_free_tfd(il, txq); + } + return nfreed; +} + +/** + * il4965_tx_status_reply_compressed_ba - Update tx status from block-ack + * + * Go through block-ack's bitmap of ACK'd frames, update driver's record of + * ACK vs. not. This gets sent to mac80211, then to rate scaling algo. + */ +static int +il4965_tx_status_reply_compressed_ba(struct il_priv *il, struct il_ht_agg *agg, + struct il_compressed_ba_resp *ba_resp) +{ + int i, sh, ack; + u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl); + u16 scd_flow = le16_to_cpu(ba_resp->scd_flow); + int successes = 0; + struct ieee80211_tx_info *info; + u64 bitmap, sent_bitmap; + + if (unlikely(!agg->wait_for_ba)) { + if (unlikely(ba_resp->bitmap)) + IL_ERR("Received BA when not expected\n"); + return -EINVAL; + } + + /* Mark that the expected block-ack response arrived */ + agg->wait_for_ba = 0; + D_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl); + + /* Calculate shift to align block-ack bits with our Tx win bits */ + sh = agg->start_idx - SEQ_TO_IDX(seq_ctl >> 4); + if (sh < 0) /* tbw something is wrong with indices */ + sh += 0x100; + + if (agg->frame_count > (64 - sh)) { + D_TX_REPLY("more frames than bitmap size"); + return -1; + } + + /* don't use 64-bit values for now */ + bitmap = le64_to_cpu(ba_resp->bitmap) >> sh; + + /* check for success or failure according to the + * transmitted bitmap and block-ack bitmap */ + sent_bitmap = bitmap & agg->bitmap; + + /* For each frame attempted in aggregation, + * update driver's record of tx frame's status. */ + i = 0; + while (sent_bitmap) { + ack = sent_bitmap & 1ULL; + successes += ack; + D_TX_REPLY("%s ON i=%d idx=%d raw=%d\n", ack ? "ACK" : "NACK", + i, (agg->start_idx + i) & 0xff, agg->start_idx + i); + sent_bitmap >>= 1; + ++i; + } + + D_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap); + + info = IEEE80211_SKB_CB(il->txq[scd_flow].txb[agg->start_idx].skb); + memset(&info->status, 0, sizeof(info->status)); + info->flags |= IEEE80211_TX_STAT_ACK; + info->flags |= IEEE80211_TX_STAT_AMPDU; + info->status.ampdu_ack_len = successes; + info->status.ampdu_len = agg->frame_count; + il4965_hwrate_to_tx_control(il, agg->rate_n_flags, info); + + return 0; +} + +/** + * translate ucode response to mac80211 tx status control values + */ +void +il4965_hwrate_to_tx_control(struct il_priv *il, u32 rate_n_flags, + struct ieee80211_tx_info *info) +{ + struct ieee80211_tx_rate *r = &info->control.rates[0]; + + info->antenna_sel_tx = + ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); + if (rate_n_flags & RATE_MCS_HT_MSK) + r->flags |= IEEE80211_TX_RC_MCS; + if (rate_n_flags & RATE_MCS_GF_MSK) + r->flags |= IEEE80211_TX_RC_GREEN_FIELD; + if (rate_n_flags & RATE_MCS_HT40_MSK) + r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; + if (rate_n_flags & RATE_MCS_DUP_MSK) + r->flags |= IEEE80211_TX_RC_DUP_DATA; + if (rate_n_flags & RATE_MCS_SGI_MSK) + r->flags |= IEEE80211_TX_RC_SHORT_GI; + r->idx = il4965_hwrate_to_mac80211_idx(rate_n_flags, info->band); +} + +/** + * il4965_hdl_compressed_ba - Handler for N_COMPRESSED_BA + * + * Handles block-acknowledge notification from device, which reports success + * of frames sent via aggregation. + */ +void +il4965_hdl_compressed_ba(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba; + struct il_tx_queue *txq = NULL; + struct il_ht_agg *agg; + int idx; + int sta_id; + int tid; + unsigned long flags; + + /* "flow" corresponds to Tx queue */ + u16 scd_flow = le16_to_cpu(ba_resp->scd_flow); + + /* "ssn" is start of block-ack Tx win, corresponds to idx + * (in Tx queue's circular buffer) of first TFD/frame in win */ + u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn); + + if (scd_flow >= il->hw_params.max_txq_num) { + IL_ERR("BUG_ON scd_flow is bigger than number of queues\n"); + return; + } + + txq = &il->txq[scd_flow]; + sta_id = ba_resp->sta_id; + tid = ba_resp->tid; + agg = &il->stations[sta_id].tid[tid].agg; + if (unlikely(agg->txq_id != scd_flow)) { + /* + * FIXME: this is a uCode bug which need to be addressed, + * log the information and return for now! + * since it is possible happen very often and in order + * not to fill the syslog, don't enable the logging by default + */ + D_TX_REPLY("BA scd_flow %d does not match txq_id %d\n", + scd_flow, agg->txq_id); + return; + } + + /* Find idx just before block-ack win */ + idx = il_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd); + + spin_lock_irqsave(&il->sta_lock, flags); + + D_TX_REPLY("N_COMPRESSED_BA [%d] Received from %pM, " "sta_id = %d\n", + agg->wait_for_ba, (u8 *) &ba_resp->sta_addr_lo32, + ba_resp->sta_id); + D_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx," "scd_flow = " + "%d, scd_ssn = %d\n", ba_resp->tid, ba_resp->seq_ctl, + (unsigned long long)le64_to_cpu(ba_resp->bitmap), + ba_resp->scd_flow, ba_resp->scd_ssn); + D_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx\n", agg->start_idx, + (unsigned long long)agg->bitmap); + + /* Update driver's record of ACK vs. not for each frame in win */ + il4965_tx_status_reply_compressed_ba(il, agg, ba_resp); + + /* Release all TFDs before the SSN, i.e. all TFDs in front of + * block-ack win (we assume that they've been successfully + * transmitted ... if not, it's too late anyway). */ + if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) { + /* calculate mac80211 ampdu sw queue to wake */ + int freed = il4965_tx_queue_reclaim(il, scd_flow, idx); + il4965_free_tfds_in_queue(il, sta_id, tid, freed); + + if (il_queue_space(&txq->q) > txq->q.low_mark && + il->mac80211_registered && + agg->state != IL_EMPTYING_HW_QUEUE_DELBA) + il_wake_queue(il, txq); + + il4965_txq_check_empty(il, sta_id, tid, scd_flow); + } + + spin_unlock_irqrestore(&il->sta_lock, flags); +} + +#ifdef CONFIG_IWLEGACY_DEBUG +const char * +il4965_get_tx_fail_reason(u32 status) +{ +#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x +#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x + + switch (status & TX_STATUS_MSK) { + case TX_STATUS_SUCCESS: + return "SUCCESS"; + TX_STATUS_POSTPONE(DELAY); + TX_STATUS_POSTPONE(FEW_BYTES); + TX_STATUS_POSTPONE(QUIET_PERIOD); + TX_STATUS_POSTPONE(CALC_TTAK); + TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY); + TX_STATUS_FAIL(SHORT_LIMIT); + TX_STATUS_FAIL(LONG_LIMIT); + TX_STATUS_FAIL(FIFO_UNDERRUN); + TX_STATUS_FAIL(DRAIN_FLOW); + TX_STATUS_FAIL(RFKILL_FLUSH); + TX_STATUS_FAIL(LIFE_EXPIRE); + TX_STATUS_FAIL(DEST_PS); + TX_STATUS_FAIL(HOST_ABORTED); + TX_STATUS_FAIL(BT_RETRY); + TX_STATUS_FAIL(STA_INVALID); + TX_STATUS_FAIL(FRAG_DROPPED); + TX_STATUS_FAIL(TID_DISABLE); + TX_STATUS_FAIL(FIFO_FLUSHED); + TX_STATUS_FAIL(INSUFFICIENT_CF_POLL); + TX_STATUS_FAIL(PASSIVE_NO_RX); + TX_STATUS_FAIL(NO_BEACON_ON_RADAR); + } + + return "UNKNOWN"; + +#undef TX_STATUS_FAIL +#undef TX_STATUS_POSTPONE +} +#endif /* CONFIG_IWLEGACY_DEBUG */ + +static struct il_link_quality_cmd * +il4965_sta_alloc_lq(struct il_priv *il, u8 sta_id) +{ + int i, r; + struct il_link_quality_cmd *link_cmd; + u32 rate_flags = 0; + __le32 rate_n_flags; + + link_cmd = kzalloc(sizeof(struct il_link_quality_cmd), GFP_KERNEL); + if (!link_cmd) { + IL_ERR("Unable to allocate memory for LQ cmd.\n"); + return NULL; + } + /* Set up the rate scaling to start at selected rate, fall back + * all the way down to 1M in IEEE order, and then spin on 1M */ + if (il->band == IEEE80211_BAND_5GHZ) + r = RATE_6M_IDX; + else + r = RATE_1M_IDX; + + if (r >= IL_FIRST_CCK_RATE && r <= IL_LAST_CCK_RATE) + rate_flags |= RATE_MCS_CCK_MSK; + + rate_flags |= + il4965_first_antenna(il->hw_params. + valid_tx_ant) << RATE_MCS_ANT_POS; + rate_n_flags = il4965_hw_set_rate_n_flags(il_rates[r].plcp, rate_flags); + for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) + link_cmd->rs_table[i].rate_n_flags = rate_n_flags; + + link_cmd->general_params.single_stream_ant_msk = + il4965_first_antenna(il->hw_params.valid_tx_ant); + + link_cmd->general_params.dual_stream_ant_msk = + il->hw_params.valid_tx_ant & ~il4965_first_antenna(il->hw_params. + valid_tx_ant); + if (!link_cmd->general_params.dual_stream_ant_msk) { + link_cmd->general_params.dual_stream_ant_msk = ANT_AB; + } else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) { + link_cmd->general_params.dual_stream_ant_msk = + il->hw_params.valid_tx_ant; + } + + link_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; + link_cmd->agg_params.agg_time_limit = + cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); + + link_cmd->sta_id = sta_id; + + return link_cmd; +} + +/* + * il4965_add_bssid_station - Add the special IBSS BSSID station + * + * Function sleeps. + */ +int +il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx, + const u8 *addr, u8 *sta_id_r) +{ + int ret; + u8 sta_id; + struct il_link_quality_cmd *link_cmd; + unsigned long flags; + + if (sta_id_r) + *sta_id_r = IL_INVALID_STATION; + + ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id); + if (ret) { + IL_ERR("Unable to add station %pM\n", addr); + return ret; + } + + if (sta_id_r) + *sta_id_r = sta_id; + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].used |= IL_STA_LOCAL; + spin_unlock_irqrestore(&il->sta_lock, flags); + + /* Set up default rate scaling table in device's station table */ + link_cmd = il4965_sta_alloc_lq(il, sta_id); + if (!link_cmd) { + IL_ERR("Unable to initialize rate scaling for station %pM.\n", + addr); + return -ENOMEM; + } + + ret = il_send_lq_cmd(il, ctx, link_cmd, CMD_SYNC, true); + if (ret) + IL_ERR("Link quality command failed (%d)\n", ret); + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].lq = link_cmd; + spin_unlock_irqrestore(&il->sta_lock, flags); + + return 0; +} + +static int +il4965_static_wepkey_cmd(struct il_priv *il, struct il_rxon_context *ctx, + bool send_if_empty) +{ + int i, not_empty = 0; + u8 buff[sizeof(struct il_wep_cmd) + + sizeof(struct il_wep_key) * WEP_KEYS_MAX]; + struct il_wep_cmd *wep_cmd = (struct il_wep_cmd *)buff; + size_t cmd_size = sizeof(struct il_wep_cmd); + struct il_host_cmd cmd = { + .id = ctx->wep_key_cmd, + .data = wep_cmd, + .flags = CMD_SYNC, + }; + + might_sleep(); + + memset(wep_cmd, 0, + cmd_size + (sizeof(struct il_wep_key) * WEP_KEYS_MAX)); + + for (i = 0; i < WEP_KEYS_MAX; i++) { + wep_cmd->key[i].key_idx = i; + if (ctx->wep_keys[i].key_size) { + wep_cmd->key[i].key_offset = i; + not_empty = 1; + } else { + wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET; + } + + wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size; + memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key, + ctx->wep_keys[i].key_size); + } + + wep_cmd->global_key_type = WEP_KEY_WEP_TYPE; + wep_cmd->num_keys = WEP_KEYS_MAX; + + cmd_size += sizeof(struct il_wep_key) * WEP_KEYS_MAX; + + cmd.len = cmd_size; + + if (not_empty || send_if_empty) + return il_send_cmd(il, &cmd); + else + return 0; +} + +int +il4965_restore_default_wep_keys(struct il_priv *il, struct il_rxon_context *ctx) +{ + lockdep_assert_held(&il->mutex); + + return il4965_static_wepkey_cmd(il, ctx, false); +} + +int +il4965_remove_default_wep_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf) +{ + int ret; + + lockdep_assert_held(&il->mutex); + + D_WEP("Removing default WEP key: idx=%d\n", keyconf->keyidx); + + memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0])); + if (il_is_rfkill(il)) { + D_WEP("Not sending C_WEPKEY command due to RFKILL.\n"); + /* but keys in device are clear anyway so return success */ + return 0; + } + ret = il4965_static_wepkey_cmd(il, ctx, 1); + D_WEP("Remove default WEP key: idx=%d ret=%d\n", keyconf->keyidx, ret); + + return ret; +} + +int +il4965_set_default_wep_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf) +{ + int ret; + + lockdep_assert_held(&il->mutex); + + if (keyconf->keylen != WEP_KEY_LEN_128 && + keyconf->keylen != WEP_KEY_LEN_64) { + D_WEP("Bad WEP key length %d\n", keyconf->keylen); + return -EINVAL; + } + + keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; + keyconf->hw_key_idx = HW_KEY_DEFAULT; + il->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher; + + ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; + memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key, + keyconf->keylen); + + ret = il4965_static_wepkey_cmd(il, ctx, false); + D_WEP("Set default WEP key: len=%d idx=%d ret=%d\n", keyconf->keylen, + keyconf->keyidx, ret); + + return ret; +} + +static int +il4965_set_wep_dynamic_key_info(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + unsigned long flags; + __le16 key_flags = 0; + struct il_addsta_cmd sta_cmd; + + lockdep_assert_held(&il->mutex); + + keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; + + key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK); + key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); + key_flags &= ~STA_KEY_FLG_INVALID; + + if (keyconf->keylen == WEP_KEY_LEN_128) + key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; + + if (sta_id == ctx->bcast_sta_id) + key_flags |= STA_KEY_MULTICAST_MSK; + + spin_lock_irqsave(&il->sta_lock, flags); + + il->stations[sta_id].keyinfo.cipher = keyconf->cipher; + il->stations[sta_id].keyinfo.keylen = keyconf->keylen; + il->stations[sta_id].keyinfo.keyidx = keyconf->keyidx; + + memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen); + + memcpy(&il->stations[sta_id].sta.key.key[3], keyconf->key, + keyconf->keylen); + + if ((il->stations[sta_id].sta.key. + key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC) + il->stations[sta_id].sta.key.key_offset = + il_get_free_ucode_key_idx(il); + /* else, we are overriding an existing key => no need to allocated room + * in uCode. */ + + WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, + "no space for a new key"); + + il->stations[sta_id].sta.key.key_flags = key_flags; + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return il_send_add_sta(il, &sta_cmd, CMD_SYNC); +} + +static int +il4965_set_ccmp_dynamic_key_info(struct il_priv *il, + struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + unsigned long flags; + __le16 key_flags = 0; + struct il_addsta_cmd sta_cmd; + + lockdep_assert_held(&il->mutex); + + key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); + key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); + key_flags &= ~STA_KEY_FLG_INVALID; + + if (sta_id == ctx->bcast_sta_id) + key_flags |= STA_KEY_MULTICAST_MSK; + + keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].keyinfo.cipher = keyconf->cipher; + il->stations[sta_id].keyinfo.keylen = keyconf->keylen; + + memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen); + + memcpy(il->stations[sta_id].sta.key.key, keyconf->key, keyconf->keylen); + + if ((il->stations[sta_id].sta.key. + key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC) + il->stations[sta_id].sta.key.key_offset = + il_get_free_ucode_key_idx(il); + /* else, we are overriding an existing key => no need to allocated room + * in uCode. */ + + WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, + "no space for a new key"); + + il->stations[sta_id].sta.key.key_flags = key_flags; + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return il_send_add_sta(il, &sta_cmd, CMD_SYNC); +} + +static int +il4965_set_tkip_dynamic_key_info(struct il_priv *il, + struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + unsigned long flags; + int ret = 0; + __le16 key_flags = 0; + + key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); + key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); + key_flags &= ~STA_KEY_FLG_INVALID; + + if (sta_id == ctx->bcast_sta_id) + key_flags |= STA_KEY_MULTICAST_MSK; + + keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; + + spin_lock_irqsave(&il->sta_lock, flags); + + il->stations[sta_id].keyinfo.cipher = keyconf->cipher; + il->stations[sta_id].keyinfo.keylen = 16; + + if ((il->stations[sta_id].sta.key. + key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC) + il->stations[sta_id].sta.key.key_offset = + il_get_free_ucode_key_idx(il); + /* else, we are overriding an existing key => no need to allocated room + * in uCode. */ + + WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, + "no space for a new key"); + + il->stations[sta_id].sta.key.key_flags = key_flags; + + /* This copy is acutally not needed: we get the key with each TX */ + memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, 16); + + memcpy(il->stations[sta_id].sta.key.key, keyconf->key, 16); + + spin_unlock_irqrestore(&il->sta_lock, flags); + + return ret; +} + +void +il4965_update_tkip_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, + struct ieee80211_sta *sta, u32 iv32, u16 * phase1key) +{ + u8 sta_id; + unsigned long flags; + int i; + + if (il_scan_cancel(il)) { + /* cancel scan failed, just live w/ bad key and rely + briefly on SW decryption */ + return; + } + + sta_id = il_sta_id_or_broadcast(il, ctx, sta); + if (sta_id == IL_INVALID_STATION) + return; + + spin_lock_irqsave(&il->sta_lock, flags); + + il->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; + + for (i = 0; i < 5; i++) + il->stations[sta_id].sta.key.tkip_rx_ttak[i] = + cpu_to_le16(phase1key[i]); + + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + + il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC); + + spin_unlock_irqrestore(&il->sta_lock, flags); + +} + +int +il4965_remove_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + unsigned long flags; + u16 key_flags; + u8 keyidx; + struct il_addsta_cmd sta_cmd; + + lockdep_assert_held(&il->mutex); + + ctx->key_mapping_keys--; + + spin_lock_irqsave(&il->sta_lock, flags); + key_flags = le16_to_cpu(il->stations[sta_id].sta.key.key_flags); + keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3; + + D_WEP("Remove dynamic key: idx=%d sta=%d\n", keyconf->keyidx, sta_id); + + if (keyconf->keyidx != keyidx) { + /* We need to remove a key with idx different that the one + * in the uCode. This means that the key we need to remove has + * been replaced by another one with different idx. + * Don't do anything and return ok + */ + spin_unlock_irqrestore(&il->sta_lock, flags); + return 0; + } + + if (il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) { + IL_WARN("Removing wrong key %d 0x%x\n", keyconf->keyidx, + key_flags); + spin_unlock_irqrestore(&il->sta_lock, flags); + return 0; + } + + if (!test_and_clear_bit + (il->stations[sta_id].sta.key.key_offset, &il->ucode_key_table)) + IL_ERR("idx %d not used in uCode key table.\n", + il->stations[sta_id].sta.key.key_offset); + memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key)); + memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo)); + il->stations[sta_id].sta.key.key_flags = + STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; + il->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET; + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + + if (il_is_rfkill(il)) { + D_WEP + ("Not sending C_ADD_STA command because RFKILL enabled.\n"); + spin_unlock_irqrestore(&il->sta_lock, flags); + return 0; + } + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return il_send_add_sta(il, &sta_cmd, CMD_SYNC); +} + +int +il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, u8 sta_id) +{ + int ret; + + lockdep_assert_held(&il->mutex); + + ctx->key_mapping_keys++; + keyconf->hw_key_idx = HW_KEY_DYNAMIC; + + switch (keyconf->cipher) { + case WLAN_CIPHER_SUITE_CCMP: + ret = + il4965_set_ccmp_dynamic_key_info(il, ctx, keyconf, sta_id); + break; + case WLAN_CIPHER_SUITE_TKIP: + ret = + il4965_set_tkip_dynamic_key_info(il, ctx, keyconf, sta_id); + break; + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + ret = il4965_set_wep_dynamic_key_info(il, ctx, keyconf, sta_id); + break; + default: + IL_ERR("Unknown alg: %s cipher = %x\n", __func__, + keyconf->cipher); + ret = -EINVAL; + } + + D_WEP("Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n", + keyconf->cipher, keyconf->keylen, keyconf->keyidx, sta_id, ret); + + return ret; +} + +/** + * il4965_alloc_bcast_station - add broadcast station into driver's station table. + * + * This adds the broadcast station into the driver's station table + * and marks it driver active, so that it will be restored to the + * device at the next best time. + */ +int +il4965_alloc_bcast_station(struct il_priv *il, struct il_rxon_context *ctx) +{ + struct il_link_quality_cmd *link_cmd; + unsigned long flags; + u8 sta_id; + + spin_lock_irqsave(&il->sta_lock, flags); + sta_id = il_prep_station(il, ctx, il_bcast_addr, false, NULL); + if (sta_id == IL_INVALID_STATION) { + IL_ERR("Unable to prepare broadcast station\n"); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return -EINVAL; + } + + il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE; + il->stations[sta_id].used |= IL_STA_BCAST; + spin_unlock_irqrestore(&il->sta_lock, flags); + + link_cmd = il4965_sta_alloc_lq(il, sta_id); + if (!link_cmd) { + IL_ERR + ("Unable to initialize rate scaling for bcast station.\n"); + return -ENOMEM; + } + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].lq = link_cmd; + spin_unlock_irqrestore(&il->sta_lock, flags); + + return 0; +} + +/** + * il4965_update_bcast_station - update broadcast station's LQ command + * + * Only used by iwl4965. Placed here to have all bcast station management + * code together. + */ +static int +il4965_update_bcast_station(struct il_priv *il, struct il_rxon_context *ctx) +{ + unsigned long flags; + struct il_link_quality_cmd *link_cmd; + u8 sta_id = ctx->bcast_sta_id; + + link_cmd = il4965_sta_alloc_lq(il, sta_id); + if (!link_cmd) { + IL_ERR("Unable to initialize rate scaling for bcast sta.\n"); + return -ENOMEM; + } + + spin_lock_irqsave(&il->sta_lock, flags); + if (il->stations[sta_id].lq) + kfree(il->stations[sta_id].lq); + else + D_INFO("Bcast sta rate scaling has not been initialized.\n"); + il->stations[sta_id].lq = link_cmd; + spin_unlock_irqrestore(&il->sta_lock, flags); + + return 0; +} + +int +il4965_update_bcast_stations(struct il_priv *il) +{ + return il4965_update_bcast_station(il, &il->ctx); +} + +/** + * il4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table + */ +int +il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid) +{ + unsigned long flags; + struct il_addsta_cmd sta_cmd; + + lockdep_assert_held(&il->mutex); + + /* Remove "disable" flag, to enable Tx for this TID */ + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; + il->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return il_send_add_sta(il, &sta_cmd, CMD_SYNC); +} + +int +il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta, int tid, + u16 ssn) +{ + unsigned long flags; + int sta_id; + struct il_addsta_cmd sta_cmd; + + lockdep_assert_held(&il->mutex); + + sta_id = il_sta_id(sta); + if (sta_id == IL_INVALID_STATION) + return -ENXIO; + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].sta.station_flags_msk = 0; + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK; + il->stations[sta_id].sta.add_immediate_ba_tid = (u8) tid; + il->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn); + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return il_send_add_sta(il, &sta_cmd, CMD_SYNC); +} + +int +il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta, int tid) +{ + unsigned long flags; + int sta_id; + struct il_addsta_cmd sta_cmd; + + lockdep_assert_held(&il->mutex); + + sta_id = il_sta_id(sta); + if (sta_id == IL_INVALID_STATION) { + IL_ERR("Invalid station for AGG tid %d\n", tid); + return -ENXIO; + } + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].sta.station_flags_msk = 0; + il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK; + il->stations[sta_id].sta.remove_immediate_ba_tid = (u8) tid; + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return il_send_add_sta(il, &sta_cmd, CMD_SYNC); +} + +void +il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt) +{ + unsigned long flags; + + spin_lock_irqsave(&il->sta_lock, flags); + il->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK; + il->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; + il->stations[sta_id].sta.sta.modify_mask = + STA_MODIFY_SLEEP_TX_COUNT_MSK; + il->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt); + il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; + il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC); + spin_unlock_irqrestore(&il->sta_lock, flags); + +} + +void +il4965_update_chain_flags(struct il_priv *il) +{ + if (il->cfg->ops->hcmd->set_rxon_chain) { + il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx); + if (il->ctx.active.rx_chain != il->ctx.staging.rx_chain) + il_commit_rxon(il, &il->ctx); + } +} + +static void +il4965_clear_free_frames(struct il_priv *il) +{ + struct list_head *element; + + D_INFO("%d frames on pre-allocated heap on clear.\n", il->frames_count); + + while (!list_empty(&il->free_frames)) { + element = il->free_frames.next; + list_del(element); + kfree(list_entry(element, struct il_frame, list)); + il->frames_count--; + } + + if (il->frames_count) { + IL_WARN("%d frames still in use. Did we lose one?\n", + il->frames_count); + il->frames_count = 0; + } +} + +static struct il_frame * +il4965_get_free_frame(struct il_priv *il) +{ + struct il_frame *frame; + struct list_head *element; + if (list_empty(&il->free_frames)) { + frame = kzalloc(sizeof(*frame), GFP_KERNEL); + if (!frame) { + IL_ERR("Could not allocate frame!\n"); + return NULL; + } + + il->frames_count++; + return frame; + } + + element = il->free_frames.next; + list_del(element); + return list_entry(element, struct il_frame, list); +} + +static void +il4965_free_frame(struct il_priv *il, struct il_frame *frame) +{ + memset(frame, 0, sizeof(*frame)); + list_add(&frame->list, &il->free_frames); +} + +static u32 +il4965_fill_beacon_frame(struct il_priv *il, struct ieee80211_hdr *hdr, + int left) +{ + lockdep_assert_held(&il->mutex); + + if (!il->beacon_skb) + return 0; + + if (il->beacon_skb->len > left) + return 0; + + memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len); + + return il->beacon_skb->len; +} + +/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ +static void +il4965_set_beacon_tim(struct il_priv *il, + struct il_tx_beacon_cmd *tx_beacon_cmd, u8 * beacon, + u32 frame_size) +{ + u16 tim_idx; + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; + + /* + * The idx is relative to frame start but we start looking at the + * variable-length part of the beacon. + */ + tim_idx = mgmt->u.beacon.variable - beacon; + + /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ + while ((tim_idx < (frame_size - 2)) && + (beacon[tim_idx] != WLAN_EID_TIM)) + tim_idx += beacon[tim_idx + 1] + 2; + + /* If TIM field was found, set variables */ + if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { + tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); + tx_beacon_cmd->tim_size = beacon[tim_idx + 1]; + } else + IL_WARN("Unable to find TIM Element in beacon\n"); +} + +static unsigned int +il4965_hw_get_beacon_cmd(struct il_priv *il, struct il_frame *frame) +{ + struct il_tx_beacon_cmd *tx_beacon_cmd; + u32 frame_size; + u32 rate_flags; + u32 rate; + /* + * We have to set up the TX command, the TX Beacon command, and the + * beacon contents. + */ + + lockdep_assert_held(&il->mutex); + + if (!il->beacon_ctx) { + IL_ERR("trying to build beacon w/o beacon context!\n"); + return 0; + } + + /* Initialize memory */ + tx_beacon_cmd = &frame->u.beacon; + memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); + + /* Set up TX beacon contents */ + frame_size = + il4965_fill_beacon_frame(il, tx_beacon_cmd->frame, + sizeof(frame->u) - sizeof(*tx_beacon_cmd)); + if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE)) + return 0; + if (!frame_size) + return 0; + + /* Set up TX command fields */ + tx_beacon_cmd->tx.len = cpu_to_le16((u16) frame_size); + tx_beacon_cmd->tx.sta_id = il->beacon_ctx->bcast_sta_id; + tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + tx_beacon_cmd->tx.tx_flags = + TX_CMD_FLG_SEQ_CTL_MSK | TX_CMD_FLG_TSF_MSK | + TX_CMD_FLG_STA_RATE_MSK; + + /* Set up TX beacon command fields */ + il4965_set_beacon_tim(il, tx_beacon_cmd, (u8 *) tx_beacon_cmd->frame, + frame_size); + + /* Set up packet rate and flags */ + rate = il_get_lowest_plcp(il, il->beacon_ctx); + il->mgmt_tx_ant = + il4965_toggle_tx_ant(il, il->mgmt_tx_ant, + il->hw_params.valid_tx_ant); + rate_flags = il4965_ant_idx_to_flags(il->mgmt_tx_ant); + if ((rate >= IL_FIRST_CCK_RATE) && (rate <= IL_LAST_CCK_RATE)) + rate_flags |= RATE_MCS_CCK_MSK; + tx_beacon_cmd->tx.rate_n_flags = + il4965_hw_set_rate_n_flags(rate, rate_flags); + + return sizeof(*tx_beacon_cmd) + frame_size; +} + +int +il4965_send_beacon_cmd(struct il_priv *il) +{ + struct il_frame *frame; + unsigned int frame_size; + int rc; + + frame = il4965_get_free_frame(il); + if (!frame) { + IL_ERR("Could not obtain free frame buffer for beacon " + "command.\n"); + return -ENOMEM; + } + + frame_size = il4965_hw_get_beacon_cmd(il, frame); + if (!frame_size) { + IL_ERR("Error configuring the beacon command\n"); + il4965_free_frame(il, frame); + return -EINVAL; + } + + rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, &frame->u.cmd[0]); + + il4965_free_frame(il, frame); + + return rc; +} + +static inline dma_addr_t +il4965_tfd_tb_get_addr(struct il_tfd *tfd, u8 idx) +{ + struct il_tfd_tb *tb = &tfd->tbs[idx]; + + dma_addr_t addr = get_unaligned_le32(&tb->lo); + if (sizeof(dma_addr_t) > sizeof(u32)) + addr |= + ((dma_addr_t) (le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << + 16; + + return addr; +} + +static inline u16 +il4965_tfd_tb_get_len(struct il_tfd *tfd, u8 idx) +{ + struct il_tfd_tb *tb = &tfd->tbs[idx]; + + return le16_to_cpu(tb->hi_n_len) >> 4; +} + +static inline void +il4965_tfd_set_tb(struct il_tfd *tfd, u8 idx, dma_addr_t addr, u16 len) +{ + struct il_tfd_tb *tb = &tfd->tbs[idx]; + u16 hi_n_len = len << 4; + + put_unaligned_le32(addr, &tb->lo); + if (sizeof(dma_addr_t) > sizeof(u32)) + hi_n_len |= ((addr >> 16) >> 16) & 0xF; + + tb->hi_n_len = cpu_to_le16(hi_n_len); + + tfd->num_tbs = idx + 1; +} + +static inline u8 +il4965_tfd_get_num_tbs(struct il_tfd *tfd) +{ + return tfd->num_tbs & 0x1f; +} + +/** + * il4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr] + * @il - driver ilate data + * @txq - tx queue + * + * Does NOT advance any TFD circular buffer read/write idxes + * Does NOT free the TFD itself (which is within circular buffer) + */ +void +il4965_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq) +{ + struct il_tfd *tfd_tmp = (struct il_tfd *)txq->tfds; + struct il_tfd *tfd; + struct pci_dev *dev = il->pci_dev; + int idx = txq->q.read_ptr; + int i; + int num_tbs; + + tfd = &tfd_tmp[idx]; + + /* Sanity check on number of chunks */ + num_tbs = il4965_tfd_get_num_tbs(tfd); + + if (num_tbs >= IL_NUM_OF_TBS) { + IL_ERR("Too many chunks: %i\n", num_tbs); + /* @todo issue fatal error, it is quite serious situation */ + return; + } + + /* Unmap tx_cmd */ + if (num_tbs) + pci_unmap_single(dev, dma_unmap_addr(&txq->meta[idx], mapping), + dma_unmap_len(&txq->meta[idx], len), + PCI_DMA_BIDIRECTIONAL); + + /* Unmap chunks, if any. */ + for (i = 1; i < num_tbs; i++) + pci_unmap_single(dev, il4965_tfd_tb_get_addr(tfd, i), + il4965_tfd_tb_get_len(tfd, i), + PCI_DMA_TODEVICE); + + /* free SKB */ + if (txq->txb) { + struct sk_buff *skb; + + skb = txq->txb[txq->q.read_ptr].skb; + + /* can be called from irqs-disabled context */ + if (skb) { + dev_kfree_skb_any(skb); + txq->txb[txq->q.read_ptr].skb = NULL; + } + } +} + +int +il4965_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq, + dma_addr_t addr, u16 len, u8 reset, u8 pad) +{ + struct il_queue *q; + struct il_tfd *tfd, *tfd_tmp; + u32 num_tbs; + + q = &txq->q; + tfd_tmp = (struct il_tfd *)txq->tfds; + tfd = &tfd_tmp[q->write_ptr]; + + if (reset) + memset(tfd, 0, sizeof(*tfd)); + + num_tbs = il4965_tfd_get_num_tbs(tfd); + + /* Each TFD can point to a maximum 20 Tx buffers */ + if (num_tbs >= IL_NUM_OF_TBS) { + IL_ERR("Error can not send more than %d chunks\n", + IL_NUM_OF_TBS); + return -EINVAL; + } + + BUG_ON(addr & ~DMA_BIT_MASK(36)); + if (unlikely(addr & ~IL_TX_DMA_MASK)) + IL_ERR("Unaligned address = %llx\n", (unsigned long long)addr); + + il4965_tfd_set_tb(tfd, num_tbs, addr, len); + + return 0; +} + +/* + * Tell nic where to find circular buffer of Tx Frame Descriptors for + * given Tx queue, and enable the DMA channel used for that queue. + * + * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA + * channels supported in hardware. + */ +int +il4965_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq) +{ + int txq_id = txq->q.id; + + /* Circular buffer (TFD queue in DRAM) physical base address */ + il_wr(il, FH49_MEM_CBBC_QUEUE(txq_id), txq->q.dma_addr >> 8); + + return 0; +} + +/****************************************************************************** + * + * Generic RX handler implementations + * + ******************************************************************************/ +static void +il4965_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_alive_resp *palive; + struct delayed_work *pwork; + + palive = &pkt->u.alive_frame; + + D_INFO("Alive ucode status 0x%08X revision " "0x%01X 0x%01X\n", + palive->is_valid, palive->ver_type, palive->ver_subtype); + + if (palive->ver_subtype == INITIALIZE_SUBTYPE) { + D_INFO("Initialization Alive received.\n"); + memcpy(&il->card_alive_init, &pkt->u.alive_frame, + sizeof(struct il_init_alive_resp)); + pwork = &il->init_alive_start; + } else { + D_INFO("Runtime Alive received.\n"); + memcpy(&il->card_alive, &pkt->u.alive_frame, + sizeof(struct il_alive_resp)); + pwork = &il->alive_start; + } + + /* We delay the ALIVE response by 5ms to + * give the HW RF Kill time to activate... */ + if (palive->is_valid == UCODE_VALID_OK) + queue_delayed_work(il->workqueue, pwork, msecs_to_jiffies(5)); + else + IL_WARN("uCode did not respond OK.\n"); +} + +/** + * il4965_bg_stats_periodic - Timer callback to queue stats + * + * This callback is provided in order to send a stats request. + * + * This timer function is continually reset to execute within + * REG_RECALIB_PERIOD seconds since the last N_STATS + * was received. We need to ensure we receive the stats in order + * to update the temperature used for calibrating the TXPOWER. + */ +static void +il4965_bg_stats_periodic(unsigned long data) +{ + struct il_priv *il = (struct il_priv *)data; + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + /* dont send host command if rf-kill is on */ + if (!il_is_ready_rf(il)) + return; + + il_send_stats_request(il, CMD_ASYNC, false); +} + +static void +il4965_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il4965_beacon_notif *beacon = + (struct il4965_beacon_notif *)pkt->u.raw; +#ifdef CONFIG_IWLEGACY_DEBUG + u8 rate = il4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); + + D_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n", + le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, + beacon->beacon_notify_hdr.failure_frame, + le32_to_cpu(beacon->ibss_mgr_status), + le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate); +#endif + + il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); +} + +static void +il4965_perform_ct_kill_task(struct il_priv *il) +{ + unsigned long flags; + + D_POWER("Stop all queues\n"); + + if (il->mac80211_registered) + ieee80211_stop_queues(il->hw); + + _il_wr(il, CSR_UCODE_DRV_GP1_SET, + CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); + _il_rd(il, CSR_UCODE_DRV_GP1); + + spin_lock_irqsave(&il->reg_lock, flags); + if (!_il_grab_nic_access(il)) + _il_release_nic_access(il); + spin_unlock_irqrestore(&il->reg_lock, flags); +} + +/* Handle notification from uCode that card's power state is changing + * due to software, hardware, or critical temperature RFKILL */ +static void +il4965_hdl_card_state(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); + unsigned long status = il->status; + + D_RF_KILL("Card state received: HW:%s SW:%s CT:%s\n", + (flags & HW_CARD_DISABLED) ? "Kill" : "On", + (flags & SW_CARD_DISABLED) ? "Kill" : "On", + (flags & CT_CARD_DISABLED) ? "Reached" : "Not reached"); + + if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | CT_CARD_DISABLED)) { + + _il_wr(il, CSR_UCODE_DRV_GP1_SET, + CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); + + il_wr(il, HBUS_TARG_MBX_C, HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); + + if (!(flags & RXON_CARD_DISABLED)) { + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, + CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); + il_wr(il, HBUS_TARG_MBX_C, + HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); + } + } + + if (flags & CT_CARD_DISABLED) + il4965_perform_ct_kill_task(il); + + if (flags & HW_CARD_DISABLED) + set_bit(S_RF_KILL_HW, &il->status); + else + clear_bit(S_RF_KILL_HW, &il->status); + + if (!(flags & RXON_CARD_DISABLED)) + il_scan_cancel(il); + + if ((test_bit(S_RF_KILL_HW, &status) != + test_bit(S_RF_KILL_HW, &il->status))) + wiphy_rfkill_set_hw_state(il->hw->wiphy, + test_bit(S_RF_KILL_HW, &il->status)); + else + wake_up(&il->wait_command_queue); +} + +/** + * il4965_setup_handlers - Initialize Rx handler callbacks + * + * Setup the RX handlers for each of the reply types sent from the uCode + * to the host. + * + * This function chains into the hardware specific files for them to setup + * any hardware specific handlers as well. + */ +static void +il4965_setup_handlers(struct il_priv *il) +{ + il->handlers[N_ALIVE] = il4965_hdl_alive; + il->handlers[N_ERROR] = il_hdl_error; + il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa; + il->handlers[N_SPECTRUM_MEASUREMENT] = il_hdl_spectrum_measurement; + il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep; + il->handlers[N_PM_DEBUG_STATS] = il_hdl_pm_debug_stats; + il->handlers[N_BEACON] = il4965_hdl_beacon; + + /* + * The same handler is used for both the REPLY to a discrete + * stats request from the host as well as for the periodic + * stats notifications (after received beacons) from the uCode. + */ + il->handlers[C_STATS] = il4965_hdl_c_stats; + il->handlers[N_STATS] = il4965_hdl_stats; + + il_setup_rx_scan_handlers(il); + + /* status change handler */ + il->handlers[N_CARD_STATE] = il4965_hdl_card_state; + + il->handlers[N_MISSED_BEACONS] = il4965_hdl_missed_beacon; + /* Rx handlers */ + il->handlers[N_RX_PHY] = il4965_hdl_rx_phy; + il->handlers[N_RX_MPDU] = il4965_hdl_rx; + /* block ack */ + il->handlers[N_COMPRESSED_BA] = il4965_hdl_compressed_ba; + /* Set up hardware specific Rx handlers */ + il->cfg->ops->lib->handler_setup(il); +} + +/** + * il4965_rx_handle - Main entry function for receiving responses from uCode + * + * Uses the il->handlers callback function array to invoke + * the appropriate handlers, including command responses, + * frame-received notifications, and other notifications. + */ +void +il4965_rx_handle(struct il_priv *il) +{ + struct il_rx_buf *rxb; + struct il_rx_pkt *pkt; + struct il_rx_queue *rxq = &il->rxq; + u32 r, i; + int reclaim; + unsigned long flags; + u8 fill_rx = 0; + u32 count = 8; + int total_empty; + + /* uCode's read idx (stored in shared DRAM) indicates the last Rx + * buffer that the driver may process (last buffer filled by ucode). */ + r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; + i = rxq->read; + + /* Rx interrupt, but nothing sent from uCode */ + if (i == r) + D_RX("r = %d, i = %d\n", r, i); + + /* calculate total frames need to be restock after handling RX */ + total_empty = r - rxq->write_actual; + if (total_empty < 0) + total_empty += RX_QUEUE_SIZE; + + if (total_empty > (RX_QUEUE_SIZE / 2)) + fill_rx = 1; + + while (i != r) { + int len; + + rxb = rxq->queue[i]; + + /* If an RXB doesn't have a Rx queue slot associated with it, + * then a bug has been introduced in the queue refilling + * routines -- catch it here */ + BUG_ON(rxb == NULL); + + rxq->queue[i] = NULL; + + pci_unmap_page(il->pci_dev, rxb->page_dma, + PAGE_SIZE << il->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + pkt = rxb_addr(rxb); + + len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK; + len += sizeof(u32); /* account for status word */ + + /* Reclaim a command buffer only if this packet is a response + * to a (driver-originated) command. + * If the packet (e.g. Rx frame) originated from uCode, + * there is no command buffer to reclaim. + * Ucode should set SEQ_RX_FRAME bit if ucode-originated, + * but apparently a few don't get set; catch them here. */ + reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && + (pkt->hdr.cmd != N_RX_PHY) && (pkt->hdr.cmd != N_RX) && + (pkt->hdr.cmd != N_RX_MPDU) && + (pkt->hdr.cmd != N_COMPRESSED_BA) && + (pkt->hdr.cmd != N_STATS) && (pkt->hdr.cmd != C_TX); + + /* Based on type of command response or notification, + * handle those that need handling via function in + * handlers table. See il4965_setup_handlers() */ + if (il->handlers[pkt->hdr.cmd]) { + D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i, + il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); + il->isr_stats.handlers[pkt->hdr.cmd]++; + il->handlers[pkt->hdr.cmd] (il, rxb); + } else { + /* No handling needed */ + D_RX("r %d i %d No handler needed for %s, 0x%02x\n", r, + i, il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); + } + + /* + * XXX: After here, we should always check rxb->page + * against NULL before touching it or its virtual + * memory (pkt). Because some handler might have + * already taken or freed the pages. + */ + + if (reclaim) { + /* Invoke any callbacks, transfer the buffer to caller, + * and fire off the (possibly) blocking il_send_cmd() + * as we reclaim the driver command queue */ + if (rxb->page) + il_tx_cmd_complete(il, rxb); + else + IL_WARN("Claim null rxb?\n"); + } + + /* Reuse the page if possible. For notification packets and + * SKBs that fail to Rx correctly, add them back into the + * rx_free list for reuse later. */ + spin_lock_irqsave(&rxq->lock, flags); + if (rxb->page != NULL) { + rxb->page_dma = + pci_map_page(il->pci_dev, rxb->page, 0, + PAGE_SIZE << il->hw_params. + rx_page_order, PCI_DMA_FROMDEVICE); + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + } else + list_add_tail(&rxb->list, &rxq->rx_used); + + spin_unlock_irqrestore(&rxq->lock, flags); + + i = (i + 1) & RX_QUEUE_MASK; + /* If there are a lot of unused frames, + * restock the Rx queue so ucode wont assert. */ + if (fill_rx) { + count++; + if (count >= 8) { + rxq->read = i; + il4965_rx_replenish_now(il); + count = 0; + } + } + } + + /* Backtrack one entry */ + rxq->read = i; + if (fill_rx) + il4965_rx_replenish_now(il); + else + il4965_rx_queue_restock(il); +} + +/* call this function to flush any scheduled tasklet */ +static inline void +il4965_synchronize_irq(struct il_priv *il) +{ + /* wait to make sure we flush pending tasklet */ + synchronize_irq(il->pci_dev->irq); + tasklet_kill(&il->irq_tasklet); +} + +static void +il4965_irq_tasklet(struct il_priv *il) +{ + u32 inta, handled = 0; + u32 inta_fh; + unsigned long flags; + u32 i; +#ifdef CONFIG_IWLEGACY_DEBUG + u32 inta_mask; +#endif + + spin_lock_irqsave(&il->lock, flags); + + /* Ack/clear/reset pending uCode interrupts. + * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, + * and will clear only when CSR_FH_INT_STATUS gets cleared. */ + inta = _il_rd(il, CSR_INT); + _il_wr(il, CSR_INT, inta); + + /* Ack/clear/reset pending flow-handler (DMA) interrupts. + * Any new interrupts that happen after this, either while we're + * in this tasklet, or later, will show up in next ISR/tasklet. */ + inta_fh = _il_rd(il, CSR_FH_INT_STATUS); + _il_wr(il, CSR_FH_INT_STATUS, inta_fh); + +#ifdef CONFIG_IWLEGACY_DEBUG + if (il_get_debug_level(il) & IL_DL_ISR) { + /* just for debug */ + inta_mask = _il_rd(il, CSR_INT_MASK); + D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta, + inta_mask, inta_fh); + } +#endif + + spin_unlock_irqrestore(&il->lock, flags); + + /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not + * atomic, make sure that inta covers all the interrupts that + * we've discovered, even if FH interrupt came in just after + * reading CSR_INT. */ + if (inta_fh & CSR49_FH_INT_RX_MASK) + inta |= CSR_INT_BIT_FH_RX; + if (inta_fh & CSR49_FH_INT_TX_MASK) + inta |= CSR_INT_BIT_FH_TX; + + /* Now service all interrupt bits discovered above. */ + if (inta & CSR_INT_BIT_HW_ERR) { + IL_ERR("Hardware error detected. Restarting.\n"); + + /* Tell the device to stop sending interrupts */ + il_disable_interrupts(il); + + il->isr_stats.hw++; + il_irq_handle_error(il); + + handled |= CSR_INT_BIT_HW_ERR; + + return; + } +#ifdef CONFIG_IWLEGACY_DEBUG + if (il_get_debug_level(il) & (IL_DL_ISR)) { + /* NIC fires this, but we don't use it, redundant with WAKEUP */ + if (inta & CSR_INT_BIT_SCD) { + D_ISR("Scheduler finished to transmit " + "the frame/frames.\n"); + il->isr_stats.sch++; + } + + /* Alive notification via Rx interrupt will do the real work */ + if (inta & CSR_INT_BIT_ALIVE) { + D_ISR("Alive interrupt\n"); + il->isr_stats.alive++; + } + } +#endif + /* Safely ignore these bits for debug checks below */ + inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); + + /* HW RF KILL switch toggled */ + if (inta & CSR_INT_BIT_RF_KILL) { + int hw_rf_kill = 0; + if (! + (_il_rd(il, CSR_GP_CNTRL) & + CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) + hw_rf_kill = 1; + + IL_WARN("RF_KILL bit toggled to %s.\n", + hw_rf_kill ? "disable radio" : "enable radio"); + + il->isr_stats.rfkill++; + + /* driver only loads ucode once setting the interface up. + * the driver allows loading the ucode even if the radio + * is killed. Hence update the killswitch state here. The + * rfkill handler will care about restarting if needed. + */ + if (!test_bit(S_ALIVE, &il->status)) { + if (hw_rf_kill) + set_bit(S_RF_KILL_HW, &il->status); + else + clear_bit(S_RF_KILL_HW, &il->status); + wiphy_rfkill_set_hw_state(il->hw->wiphy, hw_rf_kill); + } + + handled |= CSR_INT_BIT_RF_KILL; + } + + /* Chip got too hot and stopped itself */ + if (inta & CSR_INT_BIT_CT_KILL) { + IL_ERR("Microcode CT kill error detected.\n"); + il->isr_stats.ctkill++; + handled |= CSR_INT_BIT_CT_KILL; + } + + /* Error detected by uCode */ + if (inta & CSR_INT_BIT_SW_ERR) { + IL_ERR("Microcode SW error detected. " " Restarting 0x%X.\n", + inta); + il->isr_stats.sw++; + il_irq_handle_error(il); + handled |= CSR_INT_BIT_SW_ERR; + } + + /* + * uCode wakes up after power-down sleep. + * Tell device about any new tx or host commands enqueued, + * and about any Rx buffers made available while asleep. + */ + if (inta & CSR_INT_BIT_WAKEUP) { + D_ISR("Wakeup interrupt\n"); + il_rx_queue_update_write_ptr(il, &il->rxq); + for (i = 0; i < il->hw_params.max_txq_num; i++) + il_txq_update_write_ptr(il, &il->txq[i]); + il->isr_stats.wakeup++; + handled |= CSR_INT_BIT_WAKEUP; + } + + /* All uCode command responses, including Tx command responses, + * Rx "responses" (frame-received notification), and other + * notifications from uCode come through here*/ + if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { + il4965_rx_handle(il); + il->isr_stats.rx++; + handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); + } + + /* This "Tx" DMA channel is used only for loading uCode */ + if (inta & CSR_INT_BIT_FH_TX) { + D_ISR("uCode load interrupt\n"); + il->isr_stats.tx++; + handled |= CSR_INT_BIT_FH_TX; + /* Wake up uCode load routine, now that load is complete */ + il->ucode_write_complete = 1; + wake_up(&il->wait_command_queue); + } + + if (inta & ~handled) { + IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled); + il->isr_stats.unhandled++; + } + + if (inta & ~(il->inta_mask)) { + IL_WARN("Disabled INTA bits 0x%08x were pending\n", + inta & ~il->inta_mask); + IL_WARN(" with FH49_INT = 0x%08x\n", inta_fh); + } + + /* Re-enable all interrupts */ + /* only Re-enable if disabled by irq */ + if (test_bit(S_INT_ENABLED, &il->status)) + il_enable_interrupts(il); + /* Re-enable RF_KILL if it occurred */ + else if (handled & CSR_INT_BIT_RF_KILL) + il_enable_rfkill_int(il); + +#ifdef CONFIG_IWLEGACY_DEBUG + if (il_get_debug_level(il) & (IL_DL_ISR)) { + inta = _il_rd(il, CSR_INT); + inta_mask = _il_rd(il, CSR_INT_MASK); + inta_fh = _il_rd(il, CSR_FH_INT_STATUS); + D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " + "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); + } +#endif +} + +/***************************************************************************** + * + * sysfs attributes + * + *****************************************************************************/ + +#ifdef CONFIG_IWLEGACY_DEBUG + +/* + * The following adds a new attribute to the sysfs representation + * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) + * used for controlling the debug level. + * + * See the level definitions in iwl for details. + * + * The debug_level being managed using sysfs below is a per device debug + * level that is used instead of the global debug level if it (the per + * device debug level) is set. + */ +static ssize_t +il4965_show_debug_level(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + return sprintf(buf, "0x%08X\n", il_get_debug_level(il)); +} + +static ssize_t +il4965_store_debug_level(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 0, &val); + if (ret) + IL_ERR("%s is not in hex or decimal form.\n", buf); + else { + il->debug_level = val; + if (il_alloc_traffic_mem(il)) + IL_ERR("Not enough memory to generate traffic log\n"); + } + return strnlen(buf, count); +} + +static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, il4965_show_debug_level, + il4965_store_debug_level); + +#endif /* CONFIG_IWLEGACY_DEBUG */ + +static ssize_t +il4965_show_temperature(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + + if (!il_is_alive(il)) + return -EAGAIN; + + return sprintf(buf, "%d\n", il->temperature); +} + +static DEVICE_ATTR(temperature, S_IRUGO, il4965_show_temperature, NULL); + +static ssize_t +il4965_show_tx_power(struct device *d, struct device_attribute *attr, char *buf) +{ + struct il_priv *il = dev_get_drvdata(d); + + if (!il_is_ready_rf(il)) + return sprintf(buf, "off\n"); + else + return sprintf(buf, "%d\n", il->tx_power_user_lmt); +} + +static ssize_t +il4965_store_tx_power(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct il_priv *il = dev_get_drvdata(d); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 10, &val); + if (ret) + IL_INFO("%s is not in decimal form.\n", buf); + else { + ret = il_set_tx_power(il, val, false); + if (ret) + IL_ERR("failed setting tx power (0x%d).\n", ret); + else + ret = count; + } + return ret; +} + +static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il4965_show_tx_power, + il4965_store_tx_power); + +static struct attribute *il_sysfs_entries[] = { + &dev_attr_temperature.attr, + &dev_attr_tx_power.attr, +#ifdef CONFIG_IWLEGACY_DEBUG + &dev_attr_debug_level.attr, +#endif + NULL +}; + +static struct attribute_group il_attribute_group = { + .name = NULL, /* put in device directory */ + .attrs = il_sysfs_entries, +}; + +/****************************************************************************** + * + * uCode download functions + * + ******************************************************************************/ + +static void +il4965_dealloc_ucode_pci(struct il_priv *il) +{ + il_free_fw_desc(il->pci_dev, &il->ucode_code); + il_free_fw_desc(il->pci_dev, &il->ucode_data); + il_free_fw_desc(il->pci_dev, &il->ucode_data_backup); + il_free_fw_desc(il->pci_dev, &il->ucode_init); + il_free_fw_desc(il->pci_dev, &il->ucode_init_data); + il_free_fw_desc(il->pci_dev, &il->ucode_boot); +} + +static void +il4965_nic_start(struct il_priv *il) +{ + /* Remove all resets to allow NIC to operate */ + _il_wr(il, CSR_RESET, 0); +} + +static void il4965_ucode_callback(const struct firmware *ucode_raw, + void *context); +static int il4965_mac_setup_register(struct il_priv *il, u32 max_probe_length); + +static int __must_check +il4965_request_firmware(struct il_priv *il, bool first) +{ + const char *name_pre = il->cfg->fw_name_pre; + char tag[8]; + + if (first) { + il->fw_idx = il->cfg->ucode_api_max; + sprintf(tag, "%d", il->fw_idx); + } else { + il->fw_idx--; + sprintf(tag, "%d", il->fw_idx); + } + + if (il->fw_idx < il->cfg->ucode_api_min) { + IL_ERR("no suitable firmware found!\n"); + return -ENOENT; + } + + sprintf(il->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); + + D_INFO("attempting to load firmware '%s'\n", il->firmware_name); + + return request_firmware_nowait(THIS_MODULE, 1, il->firmware_name, + &il->pci_dev->dev, GFP_KERNEL, il, + il4965_ucode_callback); +} + +struct il4965_firmware_pieces { + const void *inst, *data, *init, *init_data, *boot; + size_t inst_size, data_size, init_size, init_data_size, boot_size; +}; + +static int +il4965_load_firmware(struct il_priv *il, const struct firmware *ucode_raw, + struct il4965_firmware_pieces *pieces) +{ + struct il_ucode_header *ucode = (void *)ucode_raw->data; + u32 api_ver, hdr_size; + const u8 *src; + + il->ucode_ver = le32_to_cpu(ucode->ver); + api_ver = IL_UCODE_API(il->ucode_ver); + + switch (api_ver) { + default: + case 0: + case 1: + case 2: + hdr_size = 24; + if (ucode_raw->size < hdr_size) { + IL_ERR("File size too small!\n"); + return -EINVAL; + } + pieces->inst_size = le32_to_cpu(ucode->v1.inst_size); + pieces->data_size = le32_to_cpu(ucode->v1.data_size); + pieces->init_size = le32_to_cpu(ucode->v1.init_size); + pieces->init_data_size = le32_to_cpu(ucode->v1.init_data_size); + pieces->boot_size = le32_to_cpu(ucode->v1.boot_size); + src = ucode->v1.data; + break; + } + + /* Verify size of file vs. image size info in file's header */ + if (ucode_raw->size != + hdr_size + pieces->inst_size + pieces->data_size + + pieces->init_size + pieces->init_data_size + pieces->boot_size) { + + IL_ERR("uCode file size %d does not match expected size\n", + (int)ucode_raw->size); + return -EINVAL; + } + + pieces->inst = src; + src += pieces->inst_size; + pieces->data = src; + src += pieces->data_size; + pieces->init = src; + src += pieces->init_size; + pieces->init_data = src; + src += pieces->init_data_size; + pieces->boot = src; + src += pieces->boot_size; + + return 0; +} + +/** + * il4965_ucode_callback - callback when firmware was loaded + * + * If loaded successfully, copies the firmware into buffers + * for the card to fetch (via DMA). + */ +static void +il4965_ucode_callback(const struct firmware *ucode_raw, void *context) +{ + struct il_priv *il = context; + struct il_ucode_header *ucode; + int err; + struct il4965_firmware_pieces pieces; + const unsigned int api_max = il->cfg->ucode_api_max; + const unsigned int api_min = il->cfg->ucode_api_min; + u32 api_ver; + + u32 max_probe_length = 200; + u32 standard_phy_calibration_size = + IL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; + + memset(&pieces, 0, sizeof(pieces)); + + if (!ucode_raw) { + if (il->fw_idx <= il->cfg->ucode_api_max) + IL_ERR("request for firmware file '%s' failed.\n", + il->firmware_name); + goto try_again; + } + + D_INFO("Loaded firmware file '%s' (%zd bytes).\n", il->firmware_name, + ucode_raw->size); + + /* Make sure that we got at least the API version number */ + if (ucode_raw->size < 4) { + IL_ERR("File size way too small!\n"); + goto try_again; + } + + /* Data from ucode file: header followed by uCode images */ + ucode = (struct il_ucode_header *)ucode_raw->data; + + err = il4965_load_firmware(il, ucode_raw, &pieces); + + if (err) + goto try_again; + + api_ver = IL_UCODE_API(il->ucode_ver); + + /* + * api_ver should match the api version forming part of the + * firmware filename ... but we don't check for that and only rely + * on the API version read from firmware header from here on forward + */ + if (api_ver < api_min || api_ver > api_max) { + IL_ERR("Driver unable to support your firmware API. " + "Driver supports v%u, firmware is v%u.\n", api_max, + api_ver); + goto try_again; + } + + if (api_ver != api_max) + IL_ERR("Firmware has old API version. Expected v%u, " + "got v%u. New firmware can be obtained " + "from http://www.intellinuxwireless.org.\n", api_max, + api_ver); + + IL_INFO("loaded firmware version %u.%u.%u.%u\n", + IL_UCODE_MAJOR(il->ucode_ver), IL_UCODE_MINOR(il->ucode_ver), + IL_UCODE_API(il->ucode_ver), IL_UCODE_SERIAL(il->ucode_ver)); + + snprintf(il->hw->wiphy->fw_version, sizeof(il->hw->wiphy->fw_version), + "%u.%u.%u.%u", IL_UCODE_MAJOR(il->ucode_ver), + IL_UCODE_MINOR(il->ucode_ver), IL_UCODE_API(il->ucode_ver), + IL_UCODE_SERIAL(il->ucode_ver)); + + /* + * For any of the failures below (before allocating pci memory) + * we will try to load a version with a smaller API -- maybe the + * user just got a corrupted version of the latest API. + */ + + D_INFO("f/w package hdr ucode version raw = 0x%x\n", il->ucode_ver); + D_INFO("f/w package hdr runtime inst size = %Zd\n", pieces.inst_size); + D_INFO("f/w package hdr runtime data size = %Zd\n", pieces.data_size); + D_INFO("f/w package hdr init inst size = %Zd\n", pieces.init_size); + D_INFO("f/w package hdr init data size = %Zd\n", pieces.init_data_size); + D_INFO("f/w package hdr boot inst size = %Zd\n", pieces.boot_size); + + /* Verify that uCode images will fit in card's SRAM */ + if (pieces.inst_size > il->hw_params.max_inst_size) { + IL_ERR("uCode instr len %Zd too large to fit in\n", + pieces.inst_size); + goto try_again; + } + + if (pieces.data_size > il->hw_params.max_data_size) { + IL_ERR("uCode data len %Zd too large to fit in\n", + pieces.data_size); + goto try_again; + } + + if (pieces.init_size > il->hw_params.max_inst_size) { + IL_ERR("uCode init instr len %Zd too large to fit in\n", + pieces.init_size); + goto try_again; + } + + if (pieces.init_data_size > il->hw_params.max_data_size) { + IL_ERR("uCode init data len %Zd too large to fit in\n", + pieces.init_data_size); + goto try_again; + } + + if (pieces.boot_size > il->hw_params.max_bsm_size) { + IL_ERR("uCode boot instr len %Zd too large to fit in\n", + pieces.boot_size); + goto try_again; + } + + /* Allocate ucode buffers for card's bus-master loading ... */ + + /* Runtime instructions and 2 copies of data: + * 1) unmodified from disk + * 2) backup cache for save/restore during power-downs */ + il->ucode_code.len = pieces.inst_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_code); + + il->ucode_data.len = pieces.data_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_data); + + il->ucode_data_backup.len = pieces.data_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup); + + if (!il->ucode_code.v_addr || !il->ucode_data.v_addr || + !il->ucode_data_backup.v_addr) + goto err_pci_alloc; + + /* Initialization instructions and data */ + if (pieces.init_size && pieces.init_data_size) { + il->ucode_init.len = pieces.init_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_init); + + il->ucode_init_data.len = pieces.init_data_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data); + + if (!il->ucode_init.v_addr || !il->ucode_init_data.v_addr) + goto err_pci_alloc; + } + + /* Bootstrap (instructions only, no data) */ + if (pieces.boot_size) { + il->ucode_boot.len = pieces.boot_size; + il_alloc_fw_desc(il->pci_dev, &il->ucode_boot); + + if (!il->ucode_boot.v_addr) + goto err_pci_alloc; + } + + /* Now that we can no longer fail, copy information */ + + il->sta_key_max_num = STA_KEY_MAX_NUM; + + /* Copy images into buffers for card's bus-master reads ... */ + + /* Runtime instructions (first block of data in file) */ + D_INFO("Copying (but not loading) uCode instr len %Zd\n", + pieces.inst_size); + memcpy(il->ucode_code.v_addr, pieces.inst, pieces.inst_size); + + D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", + il->ucode_code.v_addr, (u32) il->ucode_code.p_addr); + + /* + * Runtime data + * NOTE: Copy into backup buffer will be done in il_up() + */ + D_INFO("Copying (but not loading) uCode data len %Zd\n", + pieces.data_size); + memcpy(il->ucode_data.v_addr, pieces.data, pieces.data_size); + memcpy(il->ucode_data_backup.v_addr, pieces.data, pieces.data_size); + + /* Initialization instructions */ + if (pieces.init_size) { + D_INFO("Copying (but not loading) init instr len %Zd\n", + pieces.init_size); + memcpy(il->ucode_init.v_addr, pieces.init, pieces.init_size); + } + + /* Initialization data */ + if (pieces.init_data_size) { + D_INFO("Copying (but not loading) init data len %Zd\n", + pieces.init_data_size); + memcpy(il->ucode_init_data.v_addr, pieces.init_data, + pieces.init_data_size); + } + + /* Bootstrap instructions */ + D_INFO("Copying (but not loading) boot instr len %Zd\n", + pieces.boot_size); + memcpy(il->ucode_boot.v_addr, pieces.boot, pieces.boot_size); + + /* + * figure out the offset of chain noise reset and gain commands + * base on the size of standard phy calibration commands table size + */ + il->_4965.phy_calib_chain_noise_reset_cmd = + standard_phy_calibration_size; + il->_4965.phy_calib_chain_noise_gain_cmd = + standard_phy_calibration_size + 1; + + /************************************************** + * This is still part of probe() in a sense... + * + * 9. Setup and register with mac80211 and debugfs + **************************************************/ + err = il4965_mac_setup_register(il, max_probe_length); + if (err) + goto out_unbind; + + err = il_dbgfs_register(il, DRV_NAME); + if (err) + IL_ERR("failed to create debugfs files. Ignoring error: %d\n", + err); + + err = sysfs_create_group(&il->pci_dev->dev.kobj, &il_attribute_group); + if (err) { + IL_ERR("failed to create sysfs device attributes\n"); + goto out_unbind; + } + + /* We have our copies now, allow OS release its copies */ + release_firmware(ucode_raw); + complete(&il->_4965.firmware_loading_complete); + return; + +try_again: + /* try next, if any */ + if (il4965_request_firmware(il, false)) + goto out_unbind; + release_firmware(ucode_raw); + return; + +err_pci_alloc: + IL_ERR("failed to allocate pci memory\n"); + il4965_dealloc_ucode_pci(il); +out_unbind: + complete(&il->_4965.firmware_loading_complete); + device_release_driver(&il->pci_dev->dev); + release_firmware(ucode_raw); +} + +static const char *const desc_lookup_text[] = { + "OK", + "FAIL", + "BAD_PARAM", + "BAD_CHECKSUM", + "NMI_INTERRUPT_WDG", + "SYSASSERT", + "FATAL_ERROR", + "BAD_COMMAND", + "HW_ERROR_TUNE_LOCK", + "HW_ERROR_TEMPERATURE", + "ILLEGAL_CHAN_FREQ", + "VCC_NOT_STBL", + "FH49_ERROR", + "NMI_INTERRUPT_HOST", + "NMI_INTERRUPT_ACTION_PT", + "NMI_INTERRUPT_UNKNOWN", + "UCODE_VERSION_MISMATCH", + "HW_ERROR_ABS_LOCK", + "HW_ERROR_CAL_LOCK_FAIL", + "NMI_INTERRUPT_INST_ACTION_PT", + "NMI_INTERRUPT_DATA_ACTION_PT", + "NMI_TRM_HW_ER", + "NMI_INTERRUPT_TRM", + "NMI_INTERRUPT_BREAK_POINT", + "DEBUG_0", + "DEBUG_1", + "DEBUG_2", + "DEBUG_3", +}; + +static struct { + char *name; + u8 num; +} advanced_lookup[] = { + { + "NMI_INTERRUPT_WDG", 0x34}, { + "SYSASSERT", 0x35}, { + "UCODE_VERSION_MISMATCH", 0x37}, { + "BAD_COMMAND", 0x38}, { + "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C}, { + "FATAL_ERROR", 0x3D}, { + "NMI_TRM_HW_ERR", 0x46}, { + "NMI_INTERRUPT_TRM", 0x4C}, { + "NMI_INTERRUPT_BREAK_POINT", 0x54}, { + "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C}, { + "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64}, { + "NMI_INTERRUPT_HOST", 0x66}, { + "NMI_INTERRUPT_ACTION_PT", 0x7C}, { + "NMI_INTERRUPT_UNKNOWN", 0x84}, { + "NMI_INTERRUPT_INST_ACTION_PT", 0x86}, { +"ADVANCED_SYSASSERT", 0},}; + +static const char * +il4965_desc_lookup(u32 num) +{ + int i; + int max = ARRAY_SIZE(desc_lookup_text); + + if (num < max) + return desc_lookup_text[num]; + + max = ARRAY_SIZE(advanced_lookup) - 1; + for (i = 0; i < max; i++) { + if (advanced_lookup[i].num == num) + break; + } + return advanced_lookup[i].name; +} + +#define ERROR_START_OFFSET (1 * sizeof(u32)) +#define ERROR_ELEM_SIZE (7 * sizeof(u32)) + +void +il4965_dump_nic_error_log(struct il_priv *il) +{ + u32 data2, line; + u32 desc, time, count, base, data1; + u32 blink1, blink2, ilink1, ilink2; + u32 pc, hcmd; + + if (il->ucode_type == UCODE_INIT) + base = le32_to_cpu(il->card_alive_init.error_event_table_ptr); + else + base = le32_to_cpu(il->card_alive.error_event_table_ptr); + + if (!il->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + IL_ERR("Not valid error log pointer 0x%08X for %s uCode\n", + base, (il->ucode_type == UCODE_INIT) ? "Init" : "RT"); + return; + } + + count = il_read_targ_mem(il, base); + + if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { + IL_ERR("Start IWL Error Log Dump:\n"); + IL_ERR("Status: 0x%08lX, count: %d\n", il->status, count); + } + + desc = il_read_targ_mem(il, base + 1 * sizeof(u32)); + il->isr_stats.err_code = desc; + pc = il_read_targ_mem(il, base + 2 * sizeof(u32)); + blink1 = il_read_targ_mem(il, base + 3 * sizeof(u32)); + blink2 = il_read_targ_mem(il, base + 4 * sizeof(u32)); + ilink1 = il_read_targ_mem(il, base + 5 * sizeof(u32)); + ilink2 = il_read_targ_mem(il, base + 6 * sizeof(u32)); + data1 = il_read_targ_mem(il, base + 7 * sizeof(u32)); + data2 = il_read_targ_mem(il, base + 8 * sizeof(u32)); + line = il_read_targ_mem(il, base + 9 * sizeof(u32)); + time = il_read_targ_mem(il, base + 11 * sizeof(u32)); + hcmd = il_read_targ_mem(il, base + 22 * sizeof(u32)); + + IL_ERR("Desc Time " + "data1 data2 line\n"); + IL_ERR("%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n", + il4965_desc_lookup(desc), desc, time, data1, data2, line); + IL_ERR("pc blink1 blink2 ilink1 ilink2 hcmd\n"); + IL_ERR("0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n", pc, blink1, + blink2, ilink1, ilink2, hcmd); +} + +static void +il4965_rf_kill_ct_config(struct il_priv *il) +{ + struct il_ct_kill_config cmd; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&il->lock, flags); + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, + CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); + spin_unlock_irqrestore(&il->lock, flags); + + cmd.critical_temperature_R = + cpu_to_le32(il->hw_params.ct_kill_threshold); + + ret = il_send_cmd_pdu(il, C_CT_KILL_CONFIG, sizeof(cmd), &cmd); + if (ret) + IL_ERR("C_CT_KILL_CONFIG failed\n"); + else + D_INFO("C_CT_KILL_CONFIG " "succeeded, " + "critical temperature is %d\n", + il->hw_params.ct_kill_threshold); +} + +static const s8 default_queue_to_tx_fifo[] = { + IL_TX_FIFO_VO, + IL_TX_FIFO_VI, + IL_TX_FIFO_BE, + IL_TX_FIFO_BK, + IL49_CMD_FIFO_NUM, + IL_TX_FIFO_UNUSED, + IL_TX_FIFO_UNUSED, +}; + +#define IL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo)))) + +static int +il4965_alive_notify(struct il_priv *il) +{ + u32 a; + unsigned long flags; + int i, chan; + u32 reg_val; + + spin_lock_irqsave(&il->lock, flags); + + /* Clear 4965's internal Tx Scheduler data base */ + il->scd_base_addr = il_rd_prph(il, IL49_SCD_SRAM_BASE_ADDR); + a = il->scd_base_addr + IL49_SCD_CONTEXT_DATA_OFFSET; + for (; a < il->scd_base_addr + IL49_SCD_TX_STTS_BITMAP_OFFSET; a += 4) + il_write_targ_mem(il, a, 0); + for (; a < il->scd_base_addr + IL49_SCD_TRANSLATE_TBL_OFFSET; a += 4) + il_write_targ_mem(il, a, 0); + for (; + a < + il->scd_base_addr + + IL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(il->hw_params.max_txq_num); + a += 4) + il_write_targ_mem(il, a, 0); + + /* Tel 4965 where to find Tx byte count tables */ + il_wr_prph(il, IL49_SCD_DRAM_BASE_ADDR, il->scd_bc_tbls.dma >> 10); + + /* Enable DMA channel */ + for (chan = 0; chan < FH49_TCSR_CHNL_NUM; chan++) + il_wr(il, FH49_TCSR_CHNL_TX_CONFIG_REG(chan), + FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | + FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE); + + /* Update FH chicken bits */ + reg_val = il_rd(il, FH49_TX_CHICKEN_BITS_REG); + il_wr(il, FH49_TX_CHICKEN_BITS_REG, + reg_val | FH49_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); + + /* Disable chain mode for all queues */ + il_wr_prph(il, IL49_SCD_QUEUECHAIN_SEL, 0); + + /* Initialize each Tx queue (including the command queue) */ + for (i = 0; i < il->hw_params.max_txq_num; i++) { + + /* TFD circular buffer read/write idxes */ + il_wr_prph(il, IL49_SCD_QUEUE_RDPTR(i), 0); + il_wr(il, HBUS_TARG_WRPTR, 0 | (i << 8)); + + /* Max Tx Window size for Scheduler-ACK mode */ + il_write_targ_mem(il, + il->scd_base_addr + + IL49_SCD_CONTEXT_QUEUE_OFFSET(i), + (SCD_WIN_SIZE << + IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) & + IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK); + + /* Frame limit */ + il_write_targ_mem(il, + il->scd_base_addr + + IL49_SCD_CONTEXT_QUEUE_OFFSET(i) + + sizeof(u32), + (SCD_FRAME_LIMIT << + IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & + IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK); + + } + il_wr_prph(il, IL49_SCD_INTERRUPT_MASK, + (1 << il->hw_params.max_txq_num) - 1); + + /* Activate all Tx DMA/FIFO channels */ + il4965_txq_set_sched(il, IL_MASK(0, 6)); + + il4965_set_wr_ptrs(il, IL_DEFAULT_CMD_QUEUE_NUM, 0); + + /* make sure all queue are not stopped */ + memset(&il->queue_stopped[0], 0, sizeof(il->queue_stopped)); + for (i = 0; i < 4; i++) + atomic_set(&il->queue_stop_count[i], 0); + + /* reset to 0 to enable all the queue first */ + il->txq_ctx_active_msk = 0; + /* Map each Tx/cmd queue to its corresponding fifo */ + BUILD_BUG_ON(ARRAY_SIZE(default_queue_to_tx_fifo) != 7); + + for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) { + int ac = default_queue_to_tx_fifo[i]; + + il_txq_ctx_activate(il, i); + + if (ac == IL_TX_FIFO_UNUSED) + continue; + + il4965_tx_queue_set_status(il, &il->txq[i], ac, 0); + } + + spin_unlock_irqrestore(&il->lock, flags); + + return 0; +} + +/** + * il4965_alive_start - called after N_ALIVE notification received + * from protocol/runtime uCode (initialization uCode's + * Alive gets handled by il_init_alive_start()). + */ +static void +il4965_alive_start(struct il_priv *il) +{ + int ret = 0; + struct il_rxon_context *ctx = &il->ctx; + + D_INFO("Runtime Alive received.\n"); + + if (il->card_alive.is_valid != UCODE_VALID_OK) { + /* We had an error bringing up the hardware, so take it + * all the way back down so we can try again */ + D_INFO("Alive failed.\n"); + goto restart; + } + + /* Initialize uCode has loaded Runtime uCode ... verify inst image. + * This is a paranoid check, because we would not have gotten the + * "runtime" alive if code weren't properly loaded. */ + if (il4965_verify_ucode(il)) { + /* Runtime instruction load was bad; + * take it all the way back down so we can try again */ + D_INFO("Bad runtime uCode load.\n"); + goto restart; + } + + ret = il4965_alive_notify(il); + if (ret) { + IL_WARN("Could not complete ALIVE transition [ntf]: %d\n", ret); + goto restart; + } + + /* After the ALIVE response, we can send host commands to the uCode */ + set_bit(S_ALIVE, &il->status); + + /* Enable watchdog to monitor the driver tx queues */ + il_setup_watchdog(il); + + if (il_is_rfkill(il)) + return; + + ieee80211_wake_queues(il->hw); + + il->active_rate = RATES_MASK; + + if (il_is_associated_ctx(ctx)) { + struct il_rxon_cmd *active_rxon = + (struct il_rxon_cmd *)&ctx->active; + /* apply any changes in staging */ + ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; + active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; + } else { + /* Initialize our rx_config data */ + il_connection_init_rx_config(il, &il->ctx); + + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, ctx); + } + + /* Configure bluetooth coexistence if enabled */ + il_send_bt_config(il); + + il4965_reset_run_time_calib(il); + + set_bit(S_READY, &il->status); + + /* Configure the adapter for unassociated operation */ + il_commit_rxon(il, ctx); + + /* At this point, the NIC is initialized and operational */ + il4965_rf_kill_ct_config(il); + + D_INFO("ALIVE processing complete.\n"); + wake_up(&il->wait_command_queue); + + il_power_update_mode(il, true); + D_INFO("Updated power mode\n"); + + return; + +restart: + queue_work(il->workqueue, &il->restart); +} + +static void il4965_cancel_deferred_work(struct il_priv *il); + +static void +__il4965_down(struct il_priv *il) +{ + unsigned long flags; + int exit_pending; + + D_INFO(DRV_NAME " is going down\n"); + + il_scan_cancel_timeout(il, 200); + + exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status); + + /* Stop TX queues watchdog. We need to have S_EXIT_PENDING bit set + * to prevent rearm timer */ + del_timer_sync(&il->watchdog); + + il_clear_ucode_stations(il, NULL); + il_dealloc_bcast_stations(il); + il_clear_driver_stations(il); + + /* Unblock any waiting calls */ + wake_up_all(&il->wait_command_queue); + + /* Wipe out the EXIT_PENDING status bit if we are not actually + * exiting the module */ + if (!exit_pending) + clear_bit(S_EXIT_PENDING, &il->status); + + /* stop and reset the on-board processor */ + _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); + + /* tell the device to stop sending interrupts */ + spin_lock_irqsave(&il->lock, flags); + il_disable_interrupts(il); + spin_unlock_irqrestore(&il->lock, flags); + il4965_synchronize_irq(il); + + if (il->mac80211_registered) + ieee80211_stop_queues(il->hw); + + /* If we have not previously called il_init() then + * clear all bits but the RF Kill bit and return */ + if (!il_is_init(il)) { + il->status = + test_bit(S_RF_KILL_HW, + &il-> + status) << S_RF_KILL_HW | + test_bit(S_GEO_CONFIGURED, + &il-> + status) << S_GEO_CONFIGURED | + test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; + goto exit; + } + + /* ...otherwise clear out all the status bits but the RF Kill + * bit and continue taking the NIC down. */ + il->status &= + test_bit(S_RF_KILL_HW, + &il->status) << S_RF_KILL_HW | test_bit(S_GEO_CONFIGURED, + &il-> + status) << + S_GEO_CONFIGURED | test_bit(S_FW_ERROR, + &il-> + status) << S_FW_ERROR | + test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; + + il4965_txq_ctx_stop(il); + il4965_rxq_stop(il); + + /* Power-down device's busmaster DMA clocks */ + il_wr_prph(il, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); + udelay(5); + + /* Make sure (redundant) we've released our request to stay awake */ + il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + + /* Stop the device, and put it in low power state */ + il_apm_stop(il); + +exit: + memset(&il->card_alive, 0, sizeof(struct il_alive_resp)); + + dev_kfree_skb(il->beacon_skb); + il->beacon_skb = NULL; + + /* clear out any free frames */ + il4965_clear_free_frames(il); +} + +static void +il4965_down(struct il_priv *il) +{ + mutex_lock(&il->mutex); + __il4965_down(il); + mutex_unlock(&il->mutex); + + il4965_cancel_deferred_work(il); +} + +#define HW_READY_TIMEOUT (50) + +static int +il4965_set_hw_ready(struct il_priv *il) +{ + int ret = 0; + + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); + + /* See if we got it */ + ret = + _il_poll_bit(il, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, + CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, HW_READY_TIMEOUT); + if (ret != -ETIMEDOUT) + il->hw_ready = true; + else + il->hw_ready = false; + + D_INFO("hardware %s\n", (il->hw_ready == 1) ? "ready" : "not ready"); + return ret; +} + +static int +il4965_prepare_card_hw(struct il_priv *il) +{ + int ret = 0; + + D_INFO("il4965_prepare_card_hw enter\n"); + + ret = il4965_set_hw_ready(il); + if (il->hw_ready) + return ret; + + /* If HW is not ready, prepare the conditions to check again */ + il_set_bit(il, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_PREPARE); + + ret = + _il_poll_bit(il, CSR_HW_IF_CONFIG_REG, + ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, + CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); + + /* HW should be ready by now, check again. */ + if (ret != -ETIMEDOUT) + il4965_set_hw_ready(il); + + return ret; +} + +#define MAX_HW_RESTARTS 5 + +static int +__il4965_up(struct il_priv *il) +{ + int i; + int ret; + + if (test_bit(S_EXIT_PENDING, &il->status)) { + IL_WARN("Exit pending; will not bring the NIC up\n"); + return -EIO; + } + + if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) { + IL_ERR("ucode not available for device bringup\n"); + return -EIO; + } + + ret = il4965_alloc_bcast_station(il, &il->ctx); + if (ret) { + il_dealloc_bcast_stations(il); + return ret; + } + + il4965_prepare_card_hw(il); + + if (!il->hw_ready) { + IL_WARN("Exit HW not ready\n"); + return -EIO; + } + + /* If platform's RF_KILL switch is NOT set to KILL */ + if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) + clear_bit(S_RF_KILL_HW, &il->status); + else + set_bit(S_RF_KILL_HW, &il->status); + + if (il_is_rfkill(il)) { + wiphy_rfkill_set_hw_state(il->hw->wiphy, true); + + il_enable_interrupts(il); + IL_WARN("Radio disabled by HW RF Kill switch\n"); + return 0; + } + + _il_wr(il, CSR_INT, 0xFFFFFFFF); + + /* must be initialised before il_hw_nic_init */ + il->cmd_queue = IL_DEFAULT_CMD_QUEUE_NUM; + + ret = il4965_hw_nic_init(il); + if (ret) { + IL_ERR("Unable to init nic\n"); + return ret; + } + + /* make sure rfkill handshake bits are cleared */ + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); + + /* clear (again), then enable host interrupts */ + _il_wr(il, CSR_INT, 0xFFFFFFFF); + il_enable_interrupts(il); + + /* really make sure rfkill handshake bits are cleared */ + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + + /* Copy original ucode data image from disk into backup cache. + * This will be used to initialize the on-board processor's + * data SRAM for a clean start when the runtime program first loads. */ + memcpy(il->ucode_data_backup.v_addr, il->ucode_data.v_addr, + il->ucode_data.len); + + for (i = 0; i < MAX_HW_RESTARTS; i++) { + + /* load bootstrap state machine, + * load bootstrap program into processor's memory, + * prepare to load the "initialize" uCode */ + ret = il->cfg->ops->lib->load_ucode(il); + + if (ret) { + IL_ERR("Unable to set up bootstrap uCode: %d\n", ret); + continue; + } + + /* start card; "initialize" will load runtime ucode */ + il4965_nic_start(il); + + D_INFO(DRV_NAME " is coming up\n"); + + return 0; + } + + set_bit(S_EXIT_PENDING, &il->status); + __il4965_down(il); + clear_bit(S_EXIT_PENDING, &il->status); + + /* tried to restart and config the device for as long as our + * patience could withstand */ + IL_ERR("Unable to initialize device after %d attempts.\n", i); + return -EIO; +} + +/***************************************************************************** + * + * Workqueue callbacks + * + *****************************************************************************/ + +static void +il4965_bg_init_alive_start(struct work_struct *data) +{ + struct il_priv *il = + container_of(data, struct il_priv, init_alive_start.work); + + mutex_lock(&il->mutex); + if (test_bit(S_EXIT_PENDING, &il->status)) + goto out; + + il->cfg->ops->lib->init_alive_start(il); +out: + mutex_unlock(&il->mutex); +} + +static void +il4965_bg_alive_start(struct work_struct *data) +{ + struct il_priv *il = + container_of(data, struct il_priv, alive_start.work); + + mutex_lock(&il->mutex); + if (test_bit(S_EXIT_PENDING, &il->status)) + goto out; + + il4965_alive_start(il); +out: + mutex_unlock(&il->mutex); +} + +static void +il4965_bg_run_time_calib_work(struct work_struct *work) +{ + struct il_priv *il = container_of(work, struct il_priv, + run_time_calib_work); + + mutex_lock(&il->mutex); + + if (test_bit(S_EXIT_PENDING, &il->status) || + test_bit(S_SCANNING, &il->status)) { + mutex_unlock(&il->mutex); + return; + } + + if (il->start_calib) { + il4965_chain_noise_calibration(il, (void *)&il->_4965.stats); + il4965_sensitivity_calibration(il, (void *)&il->_4965.stats); + } + + mutex_unlock(&il->mutex); +} + +static void +il4965_bg_restart(struct work_struct *data) +{ + struct il_priv *il = container_of(data, struct il_priv, restart); + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + if (test_and_clear_bit(S_FW_ERROR, &il->status)) { + mutex_lock(&il->mutex); + il->ctx.vif = NULL; + il->is_open = 0; + + __il4965_down(il); + + mutex_unlock(&il->mutex); + il4965_cancel_deferred_work(il); + ieee80211_restart_hw(il->hw); + } else { + il4965_down(il); + + mutex_lock(&il->mutex); + if (test_bit(S_EXIT_PENDING, &il->status)) { + mutex_unlock(&il->mutex); + return; + } + + __il4965_up(il); + mutex_unlock(&il->mutex); + } +} + +static void +il4965_bg_rx_replenish(struct work_struct *data) +{ + struct il_priv *il = container_of(data, struct il_priv, rx_replenish); + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + mutex_lock(&il->mutex); + il4965_rx_replenish(il); + mutex_unlock(&il->mutex); +} + +/***************************************************************************** + * + * mac80211 entry point functions + * + *****************************************************************************/ + +#define UCODE_READY_TIMEOUT (4 * HZ) + +/* + * Not a mac80211 entry point function, but it fits in with all the + * other mac80211 functions grouped here. + */ +static int +il4965_mac_setup_register(struct il_priv *il, u32 max_probe_length) +{ + int ret; + struct ieee80211_hw *hw = il->hw; + + hw->rate_control_algorithm = "iwl-4965-rs"; + + /* Tell mac80211 our characteristics */ + hw->flags = + IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_AMPDU_AGGREGATION | + IEEE80211_HW_NEED_DTIM_PERIOD | IEEE80211_HW_SPECTRUM_MGMT | + IEEE80211_HW_REPORTS_TX_ACK_STATUS; + + if (il->cfg->sku & IL_SKU_N) + hw->flags |= + IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | + IEEE80211_HW_SUPPORTS_STATIC_SMPS; + + hw->sta_data_size = sizeof(struct il_station_priv); + hw->vif_data_size = sizeof(struct il_vif_priv); + + hw->wiphy->interface_modes |= il->ctx.interface_modes; + hw->wiphy->interface_modes |= il->ctx.exclusive_interface_modes; + + hw->wiphy->flags |= + WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS; + + /* + * For now, disable PS by default because it affects + * RX performance significantly. + */ + hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + + hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; + /* we create the 802.11 header and a zero-length SSID element */ + hw->wiphy->max_scan_ie_len = max_probe_length - 24 - 2; + + /* Default value; 4 EDCA QOS priorities */ + hw->queues = 4; + + hw->max_listen_interval = IL_CONN_MAX_LISTEN_INTERVAL; + + if (il->bands[IEEE80211_BAND_2GHZ].n_channels) + il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = + &il->bands[IEEE80211_BAND_2GHZ]; + if (il->bands[IEEE80211_BAND_5GHZ].n_channels) + il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = + &il->bands[IEEE80211_BAND_5GHZ]; + + il_leds_init(il); + + ret = ieee80211_register_hw(il->hw); + if (ret) { + IL_ERR("Failed to register hw (error %d)\n", ret); + return ret; + } + il->mac80211_registered = 1; + + return 0; +} + +int +il4965_mac_start(struct ieee80211_hw *hw) +{ + struct il_priv *il = hw->priv; + int ret; + + D_MAC80211("enter\n"); + + /* we should be verifying the device is ready to be opened */ + mutex_lock(&il->mutex); + ret = __il4965_up(il); + mutex_unlock(&il->mutex); + + if (ret) + return ret; + + if (il_is_rfkill(il)) + goto out; + + D_INFO("Start UP work done.\n"); + + /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from + * mac80211 will not be run successfully. */ + ret = wait_event_timeout(il->wait_command_queue, + test_bit(S_READY, &il->status), + UCODE_READY_TIMEOUT); + if (!ret) { + if (!test_bit(S_READY, &il->status)) { + IL_ERR("START_ALIVE timeout after %dms.\n", + jiffies_to_msecs(UCODE_READY_TIMEOUT)); + return -ETIMEDOUT; + } + } + + il4965_led_enable(il); + +out: + il->is_open = 1; + D_MAC80211("leave\n"); + return 0; +} + +void +il4965_mac_stop(struct ieee80211_hw *hw) +{ + struct il_priv *il = hw->priv; + + D_MAC80211("enter\n"); + + if (!il->is_open) + return; + + il->is_open = 0; + + il4965_down(il); + + flush_workqueue(il->workqueue); + + /* User space software may expect getting rfkill changes + * even if interface is down */ + _il_wr(il, CSR_INT, 0xFFFFFFFF); + il_enable_rfkill_int(il); + + D_MAC80211("leave\n"); +} + +void +il4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct il_priv *il = hw->priv; + + D_MACDUMP("enter\n"); + + D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, + ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); + + if (il4965_tx_skb(il, skb)) + dev_kfree_skb_any(skb); + + D_MACDUMP("leave\n"); +} + +void +il4965_mac_update_tkip_key(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_key_conf *keyconf, + struct ieee80211_sta *sta, u32 iv32, u16 * phase1key) +{ + struct il_priv *il = hw->priv; + struct il_vif_priv *vif_priv = (void *)vif->drv_priv; + + D_MAC80211("enter\n"); + + il4965_update_tkip_key(il, vif_priv->ctx, keyconf, sta, iv32, + phase1key); + + D_MAC80211("leave\n"); +} + +int +il4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct il_priv *il = hw->priv; + struct il_vif_priv *vif_priv = (void *)vif->drv_priv; + struct il_rxon_context *ctx = vif_priv->ctx; + int ret; + u8 sta_id; + bool is_default_wep_key = false; + + D_MAC80211("enter\n"); + + if (il->cfg->mod_params->sw_crypto) { + D_MAC80211("leave - hwcrypto disabled\n"); + return -EOPNOTSUPP; + } + + sta_id = il_sta_id_or_broadcast(il, vif_priv->ctx, sta); + if (sta_id == IL_INVALID_STATION) + return -EINVAL; + + mutex_lock(&il->mutex); + il_scan_cancel_timeout(il, 100); + + /* + * If we are getting WEP group key and we didn't receive any key mapping + * so far, we are in legacy wep mode (group key only), otherwise we are + * in 1X mode. + * In legacy wep mode, we use another host command to the uCode. + */ + if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || + key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { + if (cmd == SET_KEY) + is_default_wep_key = !ctx->key_mapping_keys; + else + is_default_wep_key = + (key->hw_key_idx == HW_KEY_DEFAULT); + } + + switch (cmd) { + case SET_KEY: + if (is_default_wep_key) + ret = + il4965_set_default_wep_key(il, vif_priv->ctx, key); + else + ret = + il4965_set_dynamic_key(il, vif_priv->ctx, key, + sta_id); + + D_MAC80211("enable hwcrypto key\n"); + break; + case DISABLE_KEY: + if (is_default_wep_key) + ret = il4965_remove_default_wep_key(il, ctx, key); + else + ret = il4965_remove_dynamic_key(il, ctx, key, sta_id); + + D_MAC80211("disable hwcrypto key\n"); + break; + default: + ret = -EINVAL; + } + + mutex_unlock(&il->mutex); + D_MAC80211("leave\n"); + + return ret; +} + +int +il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + enum ieee80211_ampdu_mlme_action action, + struct ieee80211_sta *sta, u16 tid, u16 * ssn, + u8 buf_size) +{ + struct il_priv *il = hw->priv; + int ret = -EINVAL; + + D_HT("A-MPDU action on addr %pM tid %d\n", sta->addr, tid); + + if (!(il->cfg->sku & IL_SKU_N)) + return -EACCES; + + mutex_lock(&il->mutex); + + switch (action) { + case IEEE80211_AMPDU_RX_START: + D_HT("start Rx\n"); + ret = il4965_sta_rx_agg_start(il, sta, tid, *ssn); + break; + case IEEE80211_AMPDU_RX_STOP: + D_HT("stop Rx\n"); + ret = il4965_sta_rx_agg_stop(il, sta, tid); + if (test_bit(S_EXIT_PENDING, &il->status)) + ret = 0; + break; + case IEEE80211_AMPDU_TX_START: + D_HT("start Tx\n"); + ret = il4965_tx_agg_start(il, vif, sta, tid, ssn); + break; + case IEEE80211_AMPDU_TX_STOP: + D_HT("stop Tx\n"); + ret = il4965_tx_agg_stop(il, vif, sta, tid); + if (test_bit(S_EXIT_PENDING, &il->status)) + ret = 0; + break; + case IEEE80211_AMPDU_TX_OPERATIONAL: + ret = 0; + break; + } + mutex_unlock(&il->mutex); + + return ret; +} + +int +il4965_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct il_priv *il = hw->priv; + struct il_station_priv *sta_priv = (void *)sta->drv_priv; + struct il_vif_priv *vif_priv = (void *)vif->drv_priv; + bool is_ap = vif->type == NL80211_IFTYPE_STATION; + int ret; + u8 sta_id; + + D_INFO("received request to add station %pM\n", sta->addr); + mutex_lock(&il->mutex); + D_INFO("proceeding to add station %pM\n", sta->addr); + sta_priv->common.sta_id = IL_INVALID_STATION; + + atomic_set(&sta_priv->pending_frames, 0); + + ret = + il_add_station_common(il, vif_priv->ctx, sta->addr, is_ap, sta, + &sta_id); + if (ret) { + IL_ERR("Unable to add station %pM (%d)\n", sta->addr, ret); + /* Should we return success if return code is EEXIST ? */ + mutex_unlock(&il->mutex); + return ret; + } + + sta_priv->common.sta_id = sta_id; + + /* Initialize rate scaling */ + D_INFO("Initializing rate scaling for station %pM\n", sta->addr); + il4965_rs_rate_init(il, sta, sta_id); + mutex_unlock(&il->mutex); + + return 0; +} + +void +il4965_mac_channel_switch(struct ieee80211_hw *hw, + struct ieee80211_channel_switch *ch_switch) +{ + struct il_priv *il = hw->priv; + const struct il_channel_info *ch_info; + struct ieee80211_conf *conf = &hw->conf; + struct ieee80211_channel *channel = ch_switch->channel; + struct il_ht_config *ht_conf = &il->current_ht_config; + + struct il_rxon_context *ctx = &il->ctx; + u16 ch; + + D_MAC80211("enter\n"); + + mutex_lock(&il->mutex); + + if (il_is_rfkill(il)) + goto out; + + if (test_bit(S_EXIT_PENDING, &il->status) || + test_bit(S_SCANNING, &il->status) || + test_bit(S_CHANNEL_SWITCH_PENDING, &il->status)) + goto out; + + if (!il_is_associated_ctx(ctx)) + goto out; + + if (!il->cfg->ops->lib->set_channel_switch) + goto out; + + ch = channel->hw_value; + if (le16_to_cpu(ctx->active.channel) == ch) + goto out; + + ch_info = il_get_channel_info(il, channel->band, ch); + if (!il_is_channel_valid(ch_info)) { + D_MAC80211("invalid channel\n"); + goto out; + } + + spin_lock_irq(&il->lock); + + il->current_ht_config.smps = conf->smps_mode; + + /* Configure HT40 channels */ + ctx->ht.enabled = conf_is_ht(conf); + if (ctx->ht.enabled) { + if (conf_is_ht40_minus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_BELOW; + ctx->ht.is_40mhz = true; + } else if (conf_is_ht40_plus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + ctx->ht.is_40mhz = true; + } else { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_NONE; + ctx->ht.is_40mhz = false; + } + } else + ctx->ht.is_40mhz = false; + + if ((le16_to_cpu(ctx->staging.channel) != ch)) + ctx->staging.flags = 0; + + il_set_rxon_channel(il, channel, ctx); + il_set_rxon_ht(il, ht_conf); + il_set_flags_for_band(il, ctx, channel->band, ctx->vif); + + spin_unlock_irq(&il->lock); + + il_set_rate(il); + /* + * at this point, staging_rxon has the + * configuration for channel switch + */ + set_bit(S_CHANNEL_SWITCH_PENDING, &il->status); + il->switch_channel = cpu_to_le16(ch); + if (il->cfg->ops->lib->set_channel_switch(il, ch_switch)) { + clear_bit(S_CHANNEL_SWITCH_PENDING, &il->status); + il->switch_channel = 0; + ieee80211_chswitch_done(ctx->vif, false); + } + +out: + mutex_unlock(&il->mutex); + D_MAC80211("leave\n"); +} + +void +il4965_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, + unsigned int *total_flags, u64 multicast) +{ + struct il_priv *il = hw->priv; + __le32 filter_or = 0, filter_nand = 0; + +#define CHK(test, flag) do { \ + if (*total_flags & (test)) \ + filter_or |= (flag); \ + else \ + filter_nand |= (flag); \ + } while (0) + + D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags, + *total_flags); + + CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); + /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ + CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); + CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); + +#undef CHK + + mutex_lock(&il->mutex); + + il->ctx.staging.filter_flags &= ~filter_nand; + il->ctx.staging.filter_flags |= filter_or; + + /* + * Not committing directly because hardware can perform a scan, + * but we'll eventually commit the filter flags change anyway. + */ + + mutex_unlock(&il->mutex); + + /* + * Receiving all multicast frames is always enabled by the + * default flags setup in il_connection_init_rx_config() + * since we currently do not support programming multicast + * filters into the device. + */ + *total_flags &= + FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | + FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; +} + +/***************************************************************************** + * + * driver setup and teardown + * + *****************************************************************************/ + +static void +il4965_bg_txpower_work(struct work_struct *work) +{ + struct il_priv *il = container_of(work, struct il_priv, + txpower_work); + + mutex_lock(&il->mutex); + + /* If a scan happened to start before we got here + * then just return; the stats notification will + * kick off another scheduled work to compensate for + * any temperature delta we missed here. */ + if (test_bit(S_EXIT_PENDING, &il->status) || + test_bit(S_SCANNING, &il->status)) + goto out; + + /* Regardless of if we are associated, we must reconfigure the + * TX power since frames can be sent on non-radar channels while + * not associated */ + il->cfg->ops->lib->send_tx_power(il); + + /* Update last_temperature to keep is_calib_needed from running + * when it isn't needed... */ + il->last_temperature = il->temperature; +out: + mutex_unlock(&il->mutex); +} + +static void +il4965_setup_deferred_work(struct il_priv *il) +{ + il->workqueue = create_singlethread_workqueue(DRV_NAME); + + init_waitqueue_head(&il->wait_command_queue); + + INIT_WORK(&il->restart, il4965_bg_restart); + INIT_WORK(&il->rx_replenish, il4965_bg_rx_replenish); + INIT_WORK(&il->run_time_calib_work, il4965_bg_run_time_calib_work); + INIT_DELAYED_WORK(&il->init_alive_start, il4965_bg_init_alive_start); + INIT_DELAYED_WORK(&il->alive_start, il4965_bg_alive_start); + + il_setup_scan_deferred_work(il); + + INIT_WORK(&il->txpower_work, il4965_bg_txpower_work); + + init_timer(&il->stats_periodic); + il->stats_periodic.data = (unsigned long)il; + il->stats_periodic.function = il4965_bg_stats_periodic; + + init_timer(&il->watchdog); + il->watchdog.data = (unsigned long)il; + il->watchdog.function = il_bg_watchdog; + + tasklet_init(&il->irq_tasklet, + (void (*)(unsigned long))il4965_irq_tasklet, + (unsigned long)il); +} + +static void +il4965_cancel_deferred_work(struct il_priv *il) +{ + cancel_work_sync(&il->txpower_work); + cancel_delayed_work_sync(&il->init_alive_start); + cancel_delayed_work(&il->alive_start); + cancel_work_sync(&il->run_time_calib_work); + + il_cancel_scan_deferred_work(il); + + del_timer_sync(&il->stats_periodic); +} + +static void +il4965_init_hw_rates(struct il_priv *il, struct ieee80211_rate *rates) +{ + int i; + + for (i = 0; i < RATE_COUNT_LEGACY; i++) { + rates[i].bitrate = il_rates[i].ieee * 5; + rates[i].hw_value = i; /* Rate scaling will work on idxes */ + rates[i].hw_value_short = i; + rates[i].flags = 0; + if ((i >= IL_FIRST_CCK_RATE) && (i <= IL_LAST_CCK_RATE)) { + /* + * If CCK != 1M then set short preamble rate flag. + */ + rates[i].flags |= + (il_rates[i].plcp == + RATE_1M_PLCP) ? 0 : IEEE80211_RATE_SHORT_PREAMBLE; + } + } +} + +/* + * Acquire il->lock before calling this function ! + */ +void +il4965_set_wr_ptrs(struct il_priv *il, int txq_id, u32 idx) +{ + il_wr(il, HBUS_TARG_WRPTR, (idx & 0xff) | (txq_id << 8)); + il_wr_prph(il, IL49_SCD_QUEUE_RDPTR(txq_id), idx); +} + +void +il4965_tx_queue_set_status(struct il_priv *il, struct il_tx_queue *txq, + int tx_fifo_id, int scd_retry) +{ + int txq_id = txq->q.id; + + /* Find out whether to activate Tx queue */ + int active = test_bit(txq_id, &il->txq_ctx_active_msk) ? 1 : 0; + + /* Set up and activate */ + il_wr_prph(il, IL49_SCD_QUEUE_STATUS_BITS(txq_id), + (active << IL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) | + (tx_fifo_id << IL49_SCD_QUEUE_STTS_REG_POS_TXF) | + (scd_retry << IL49_SCD_QUEUE_STTS_REG_POS_WSL) | + (scd_retry << IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) | + IL49_SCD_QUEUE_STTS_REG_MSK); + + txq->sched_retry = scd_retry; + + D_INFO("%s %s Queue %d on AC %d\n", active ? "Activate" : "Deactivate", + scd_retry ? "BA" : "AC", txq_id, tx_fifo_id); +} + +static int +il4965_init_drv(struct il_priv *il) +{ + int ret; + + spin_lock_init(&il->sta_lock); + spin_lock_init(&il->hcmd_lock); + + INIT_LIST_HEAD(&il->free_frames); + + mutex_init(&il->mutex); + + il->ieee_channels = NULL; + il->ieee_rates = NULL; + il->band = IEEE80211_BAND_2GHZ; + + il->iw_mode = NL80211_IFTYPE_STATION; + il->current_ht_config.smps = IEEE80211_SMPS_STATIC; + il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF; + + /* initialize force reset */ + il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD; + + /* Choose which receivers/antennas to use */ + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx); + + il_init_scan_params(il); + + ret = il_init_channel_map(il); + if (ret) { + IL_ERR("initializing regulatory failed: %d\n", ret); + goto err; + } + + ret = il_init_geos(il); + if (ret) { + IL_ERR("initializing geos failed: %d\n", ret); + goto err_free_channel_map; + } + il4965_init_hw_rates(il, il->ieee_rates); + + return 0; + +err_free_channel_map: + il_free_channel_map(il); +err: + return ret; +} + +static void +il4965_uninit_drv(struct il_priv *il) +{ + il4965_calib_free_results(il); + il_free_geos(il); + il_free_channel_map(il); + kfree(il->scan_cmd); +} + +static void +il4965_hw_detect(struct il_priv *il) +{ + il->hw_rev = _il_rd(il, CSR_HW_REV); + il->hw_wa_rev = _il_rd(il, CSR_HW_REV_WA_REG); + il->rev_id = il->pci_dev->revision; + D_INFO("HW Revision ID = 0x%X\n", il->rev_id); +} + +static int +il4965_set_hw_params(struct il_priv *il) +{ + il->hw_params.max_rxq_size = RX_QUEUE_SIZE; + il->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; + if (il->cfg->mod_params->amsdu_size_8K) + il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_8K); + else + il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_4K); + + il->hw_params.max_beacon_itrvl = IL_MAX_UCODE_BEACON_INTERVAL; + + if (il->cfg->mod_params->disable_11n) + il->cfg->sku &= ~IL_SKU_N; + + /* Device-specific setup */ + return il->cfg->ops->lib->set_hw_params(il); +} + +static const u8 il4965_bss_ac_to_fifo[] = { + IL_TX_FIFO_VO, + IL_TX_FIFO_VI, + IL_TX_FIFO_BE, + IL_TX_FIFO_BK, +}; + +static const u8 il4965_bss_ac_to_queue[] = { + 0, 1, 2, 3, +}; + +static int +il4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + int err = 0; + struct il_priv *il; + struct ieee80211_hw *hw; + struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data); + unsigned long flags; + u16 pci_cmd; + + /************************ + * 1. Allocating HW data + ************************/ + + hw = il_alloc_all(cfg); + if (!hw) { + err = -ENOMEM; + goto out; + } + il = hw->priv; + /* At this point both hw and il are allocated. */ + + il->ctx.ctxid = 0; + + il->ctx.always_active = true; + il->ctx.is_active = true; + il->ctx.rxon_cmd = C_RXON; + il->ctx.rxon_timing_cmd = C_RXON_TIMING; + il->ctx.rxon_assoc_cmd = C_RXON_ASSOC; + il->ctx.qos_cmd = C_QOS_PARAM; + il->ctx.ap_sta_id = IL_AP_ID; + il->ctx.wep_key_cmd = C_WEPKEY; + il->ctx.ac_to_fifo = il4965_bss_ac_to_fifo; + il->ctx.ac_to_queue = il4965_bss_ac_to_queue; + il->ctx.exclusive_interface_modes = BIT(NL80211_IFTYPE_ADHOC); + il->ctx.interface_modes = BIT(NL80211_IFTYPE_STATION); + il->ctx.ap_devtype = RXON_DEV_TYPE_AP; + il->ctx.ibss_devtype = RXON_DEV_TYPE_IBSS; + il->ctx.station_devtype = RXON_DEV_TYPE_ESS; + il->ctx.unused_devtype = RXON_DEV_TYPE_ESS; + + SET_IEEE80211_DEV(hw, &pdev->dev); + + D_INFO("*** LOAD DRIVER ***\n"); + il->cfg = cfg; + il->pci_dev = pdev; + il->inta_mask = CSR_INI_SET_MASK; + + if (il_alloc_traffic_mem(il)) + IL_ERR("Not enough memory to generate traffic log\n"); + + /************************** + * 2. Initializing PCI bus + **************************/ + pci_disable_link_state(pdev, + PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | + PCIE_LINK_STATE_CLKPM); + + if (pci_enable_device(pdev)) { + err = -ENODEV; + goto out_ieee80211_free_hw; + } + + pci_set_master(pdev); + + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); + if (!err) + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36)); + if (err) { + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (!err) + err = + pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + /* both attempts failed: */ + if (err) { + IL_WARN("No suitable DMA available.\n"); + goto out_pci_disable_device; + } + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) + goto out_pci_disable_device; + + pci_set_drvdata(pdev, il); + + /*********************** + * 3. Read REV register + ***********************/ + il->hw_base = pci_iomap(pdev, 0, 0); + if (!il->hw_base) { + err = -ENODEV; + goto out_pci_release_regions; + } + + D_INFO("pci_resource_len = 0x%08llx\n", + (unsigned long long)pci_resource_len(pdev, 0)); + D_INFO("pci_resource_base = %p\n", il->hw_base); + + /* these spin locks will be used in apm_ops.init and EEPROM access + * we should init now + */ + spin_lock_init(&il->reg_lock); + spin_lock_init(&il->lock); + + /* + * stop and reset the on-board processor just in case it is in a + * strange state ... like being left stranded by a primary kernel + * and this is now the kdump kernel trying to start up + */ + _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); + + il4965_hw_detect(il); + IL_INFO("Detected %s, REV=0x%X\n", il->cfg->name, il->hw_rev); + + /* We disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state */ + pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); + + il4965_prepare_card_hw(il); + if (!il->hw_ready) { + IL_WARN("Failed, HW not ready\n"); + goto out_iounmap; + } + + /***************** + * 4. Read EEPROM + *****************/ + /* Read the EEPROM */ + err = il_eeprom_init(il); + if (err) { + IL_ERR("Unable to init EEPROM\n"); + goto out_iounmap; + } + err = il4965_eeprom_check_version(il); + if (err) + goto out_free_eeprom; + + if (err) + goto out_free_eeprom; + + /* extract MAC Address */ + il4965_eeprom_get_mac(il, il->addresses[0].addr); + D_INFO("MAC address: %pM\n", il->addresses[0].addr); + il->hw->wiphy->addresses = il->addresses; + il->hw->wiphy->n_addresses = 1; + + /************************ + * 5. Setup HW constants + ************************/ + if (il4965_set_hw_params(il)) { + IL_ERR("failed to set hw parameters\n"); + goto out_free_eeprom; + } + + /******************* + * 6. Setup il + *******************/ + + err = il4965_init_drv(il); + if (err) + goto out_free_eeprom; + /* At this point both hw and il are initialized. */ + + /******************** + * 7. Setup services + ********************/ + spin_lock_irqsave(&il->lock, flags); + il_disable_interrupts(il); + spin_unlock_irqrestore(&il->lock, flags); + + pci_enable_msi(il->pci_dev); + + err = request_irq(il->pci_dev->irq, il_isr, IRQF_SHARED, DRV_NAME, il); + if (err) { + IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq); + goto out_disable_msi; + } + + il4965_setup_deferred_work(il); + il4965_setup_handlers(il); + + /********************************************* + * 8. Enable interrupts and read RFKILL state + *********************************************/ + + /* enable rfkill interrupt: hw bug w/a */ + pci_read_config_word(il->pci_dev, PCI_COMMAND, &pci_cmd); + if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { + pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; + pci_write_config_word(il->pci_dev, PCI_COMMAND, pci_cmd); + } + + il_enable_rfkill_int(il); + + /* If platform's RF_KILL switch is NOT set to KILL */ + if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) + clear_bit(S_RF_KILL_HW, &il->status); + else + set_bit(S_RF_KILL_HW, &il->status); + + wiphy_rfkill_set_hw_state(il->hw->wiphy, + test_bit(S_RF_KILL_HW, &il->status)); + + il_power_initialize(il); + + init_completion(&il->_4965.firmware_loading_complete); + + err = il4965_request_firmware(il, true); + if (err) + goto out_destroy_workqueue; + + return 0; + +out_destroy_workqueue: + destroy_workqueue(il->workqueue); + il->workqueue = NULL; + free_irq(il->pci_dev->irq, il); +out_disable_msi: + pci_disable_msi(il->pci_dev); + il4965_uninit_drv(il); +out_free_eeprom: + il_eeprom_free(il); +out_iounmap: + pci_iounmap(pdev, il->hw_base); +out_pci_release_regions: + pci_set_drvdata(pdev, NULL); + pci_release_regions(pdev); +out_pci_disable_device: + pci_disable_device(pdev); +out_ieee80211_free_hw: + il_free_traffic_mem(il); + ieee80211_free_hw(il->hw); +out: + return err; +} + +static void __devexit +il4965_pci_remove(struct pci_dev *pdev) +{ + struct il_priv *il = pci_get_drvdata(pdev); + unsigned long flags; + + if (!il) + return; + + wait_for_completion(&il->_4965.firmware_loading_complete); + + D_INFO("*** UNLOAD DRIVER ***\n"); + + il_dbgfs_unregister(il); + sysfs_remove_group(&pdev->dev.kobj, &il_attribute_group); + + /* ieee80211_unregister_hw call wil cause il_mac_stop to + * to be called and il4965_down since we are removing the device + * we need to set S_EXIT_PENDING bit. + */ + set_bit(S_EXIT_PENDING, &il->status); + + il_leds_exit(il); + + if (il->mac80211_registered) { + ieee80211_unregister_hw(il->hw); + il->mac80211_registered = 0; + } else { + il4965_down(il); + } + + /* + * Make sure device is reset to low power before unloading driver. + * This may be redundant with il4965_down(), but there are paths to + * run il4965_down() without calling apm_ops.stop(), and there are + * paths to avoid running il4965_down() at all before leaving driver. + * This (inexpensive) call *makes sure* device is reset. + */ + il_apm_stop(il); + + /* make sure we flush any pending irq or + * tasklet for the driver + */ + spin_lock_irqsave(&il->lock, flags); + il_disable_interrupts(il); + spin_unlock_irqrestore(&il->lock, flags); + + il4965_synchronize_irq(il); + + il4965_dealloc_ucode_pci(il); + + if (il->rxq.bd) + il4965_rx_queue_free(il, &il->rxq); + il4965_hw_txq_ctx_free(il); + + il_eeprom_free(il); + + /*netif_stop_queue(dev); */ + flush_workqueue(il->workqueue); + + /* ieee80211_unregister_hw calls il_mac_stop, which flushes + * il->workqueue... so we can't take down the workqueue + * until now... */ + destroy_workqueue(il->workqueue); + il->workqueue = NULL; + il_free_traffic_mem(il); + + free_irq(il->pci_dev->irq, il); + pci_disable_msi(il->pci_dev); + pci_iounmap(pdev, il->hw_base); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + + il4965_uninit_drv(il); + + dev_kfree_skb(il->beacon_skb); + + ieee80211_free_hw(il->hw); +} + +/* + * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask + * must be called under il->lock and mac access + */ +void +il4965_txq_set_sched(struct il_priv *il, u32 mask) +{ + il_wr_prph(il, IL49_SCD_TXFACT, mask); +} + +/***************************************************************************** + * + * driver and module entry point + * + *****************************************************************************/ + +/* Hardware specific file defines the PCI IDs table for that hardware module */ +static DEFINE_PCI_DEVICE_TABLE(il4965_hw_card_ids) = { + {IL_PCI_DEVICE(0x4229, PCI_ANY_ID, il4965_cfg)}, + {IL_PCI_DEVICE(0x4230, PCI_ANY_ID, il4965_cfg)}, + {0} +}; +MODULE_DEVICE_TABLE(pci, il4965_hw_card_ids); + +static struct pci_driver il4965_driver = { + .name = DRV_NAME, + .id_table = il4965_hw_card_ids, + .probe = il4965_pci_probe, + .remove = __devexit_p(il4965_pci_remove), + .driver.pm = IL_LEGACY_PM_OPS, +}; + +static int __init +il4965_init(void) +{ + + int ret; + pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); + pr_info(DRV_COPYRIGHT "\n"); + + ret = il4965_rate_control_register(); + if (ret) { + pr_err("Unable to register rate control algorithm: %d\n", ret); + return ret; + } + + ret = pci_register_driver(&il4965_driver); + if (ret) { + pr_err("Unable to initialize PCI module\n"); + goto error_register; + } + + return ret; + +error_register: + il4965_rate_control_unregister(); + return ret; +} + +static void __exit +il4965_exit(void) +{ + pci_unregister_driver(&il4965_driver); + il4965_rate_control_unregister(); +} + +module_exit(il4965_exit); +module_init(il4965_init); + +#ifdef CONFIG_IWLEGACY_DEBUG +module_param_named(debug, il_debug_level, uint, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "debug output mask"); +#endif + +module_param_named(swcrypto, il4965_mod_params.sw_crypto, int, S_IRUGO); +MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); +module_param_named(queues_num, il4965_mod_params.num_of_queues, int, S_IRUGO); +MODULE_PARM_DESC(queues_num, "number of hw queues."); +module_param_named(11n_disable, il4965_mod_params.disable_11n, int, S_IRUGO); +MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); +module_param_named(amsdu_size_8K, il4965_mod_params.amsdu_size_8K, int, + S_IRUGO); +MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); +module_param_named(fw_restart, il4965_mod_params.restart_fw, int, S_IRUGO); +MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); diff --git a/drivers/net/wireless/iwlegacy/4965-rs.c b/drivers/net/wireless/iwlegacy/4965-rs.c new file mode 100644 index 000000000000..467d0cb14ecd --- /dev/null +++ b/drivers/net/wireless/iwlegacy/4965-rs.c @@ -0,0 +1,2860 @@ +/****************************************************************************** + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/skbuff.h> +#include <linux/slab.h> +#include <net/mac80211.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/delay.h> + +#include <linux/workqueue.h> + +#include "common.h" +#include "4965.h" + +#define IL4965_RS_NAME "iwl-4965-rs" + +#define NUM_TRY_BEFORE_ANT_TOGGLE 1 +#define IL_NUMBER_TRY 1 +#define IL_HT_NUMBER_TRY 3 + +#define RATE_MAX_WINDOW 62 /* # tx in history win */ +#define RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */ +#define RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */ + +/* max allowed rate miss before sync LQ cmd */ +#define IL_MISSED_RATE_MAX 15 +/* max time to accum history 2 seconds */ +#define RATE_SCALE_FLUSH_INTVL (3*HZ) + +static u8 rs_ht_to_legacy[] = { + RATE_6M_IDX, RATE_6M_IDX, + RATE_6M_IDX, RATE_6M_IDX, + RATE_6M_IDX, + RATE_6M_IDX, RATE_9M_IDX, + RATE_12M_IDX, RATE_18M_IDX, + RATE_24M_IDX, RATE_36M_IDX, + RATE_48M_IDX, RATE_54M_IDX +}; + +static const u8 ant_toggle_lookup[] = { + /*ANT_NONE -> */ ANT_NONE, + /*ANT_A -> */ ANT_B, + /*ANT_B -> */ ANT_C, + /*ANT_AB -> */ ANT_BC, + /*ANT_C -> */ ANT_A, + /*ANT_AC -> */ ANT_AB, + /*ANT_BC -> */ ANT_AC, + /*ANT_ABC -> */ ANT_ABC, +}; + +#define IL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ + [RATE_##r##M_IDX] = { RATE_##r##M_PLCP, \ + RATE_SISO_##s##M_PLCP, \ + RATE_MIMO2_##s##M_PLCP,\ + RATE_##r##M_IEEE, \ + RATE_##ip##M_IDX, \ + RATE_##in##M_IDX, \ + RATE_##rp##M_IDX, \ + RATE_##rn##M_IDX, \ + RATE_##pp##M_IDX, \ + RATE_##np##M_IDX } + +/* + * Parameter order: + * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate + * + * If there isn't a valid next or previous rate then INV is used which + * maps to RATE_INVALID + * + */ +const struct il_rate_info il_rates[RATE_COUNT] = { + IL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ + IL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ + IL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ + IL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ + IL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ + IL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ + IL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ + IL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ + IL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ + IL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ + IL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ + IL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ + IL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ +}; + +static int +il4965_hwrate_to_plcp_idx(u32 rate_n_flags) +{ + int idx = 0; + + /* HT rate format */ + if (rate_n_flags & RATE_MCS_HT_MSK) { + idx = (rate_n_flags & 0xff); + + if (idx >= RATE_MIMO2_6M_PLCP) + idx = idx - RATE_MIMO2_6M_PLCP; + + idx += IL_FIRST_OFDM_RATE; + /* skip 9M not supported in ht */ + if (idx >= RATE_9M_IDX) + idx += 1; + if (idx >= IL_FIRST_OFDM_RATE && idx <= IL_LAST_OFDM_RATE) + return idx; + + /* legacy rate format, search for match in table */ + } else { + for (idx = 0; idx < ARRAY_SIZE(il_rates); idx++) + if (il_rates[idx].plcp == (rate_n_flags & 0xFF)) + return idx; + } + + return -1; +} + +static void il4965_rs_rate_scale_perform(struct il_priv *il, + struct sk_buff *skb, + struct ieee80211_sta *sta, + struct il_lq_sta *lq_sta); +static void il4965_rs_fill_link_cmd(struct il_priv *il, + struct il_lq_sta *lq_sta, u32 rate_n_flags); +static void il4965_rs_stay_in_table(struct il_lq_sta *lq_sta, + bool force_search); + +#ifdef CONFIG_MAC80211_DEBUGFS +static void il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta, + u32 *rate_n_flags, int idx); +#else +static void +il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta, u32 * rate_n_flags, int idx) +{ +} +#endif + +/** + * The following tables contain the expected throughput metrics for all rates + * + * 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits + * + * where invalid entries are zeros. + * + * CCK rates are only valid in legacy table and will only be used in G + * (2.4 GHz) band. + */ + +static s32 expected_tpt_legacy[RATE_COUNT] = { + 7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0 +}; + +static s32 expected_tpt_siso20MHz[4][RATE_COUNT] = { + {0, 0, 0, 0, 42, 0, 76, 102, 124, 158, 183, 193, 202}, /* Norm */ + {0, 0, 0, 0, 46, 0, 82, 110, 132, 167, 192, 202, 210}, /* SGI */ + {0, 0, 0, 0, 48, 0, 93, 135, 176, 251, 319, 351, 381}, /* AGG */ + {0, 0, 0, 0, 53, 0, 102, 149, 193, 275, 348, 381, 413}, /* AGG+SGI */ +}; + +static s32 expected_tpt_siso40MHz[4][RATE_COUNT] = { + {0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257}, /* Norm */ + {0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264}, /* SGI */ + {0, 0, 0, 0, 96, 0, 182, 259, 328, 451, 553, 598, 640}, /* AGG */ + {0, 0, 0, 0, 106, 0, 199, 282, 357, 487, 593, 640, 683}, /* AGG+SGI */ +}; + +static s32 expected_tpt_mimo2_20MHz[4][RATE_COUNT] = { + {0, 0, 0, 0, 74, 0, 123, 155, 179, 213, 235, 243, 250}, /* Norm */ + {0, 0, 0, 0, 81, 0, 131, 164, 187, 221, 242, 250, 256}, /* SGI */ + {0, 0, 0, 0, 92, 0, 175, 250, 317, 436, 534, 578, 619}, /* AGG */ + {0, 0, 0, 0, 102, 0, 192, 273, 344, 470, 573, 619, 660}, /* AGG+SGI */ +}; + +static s32 expected_tpt_mimo2_40MHz[4][RATE_COUNT] = { + {0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289}, /* Norm */ + {0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293}, /* SGI */ + {0, 0, 0, 0, 180, 0, 327, 446, 545, 708, 828, 878, 922}, /* AGG */ + {0, 0, 0, 0, 197, 0, 355, 481, 584, 752, 872, 922, 966}, /* AGG+SGI */ +}; + +/* mbps, mcs */ +static const struct il_rate_mcs_info il_rate_mcs[RATE_COUNT] = { + {"1", "BPSK DSSS"}, + {"2", "QPSK DSSS"}, + {"5.5", "BPSK CCK"}, + {"11", "QPSK CCK"}, + {"6", "BPSK 1/2"}, + {"9", "BPSK 1/2"}, + {"12", "QPSK 1/2"}, + {"18", "QPSK 3/4"}, + {"24", "16QAM 1/2"}, + {"36", "16QAM 3/4"}, + {"48", "64QAM 2/3"}, + {"54", "64QAM 3/4"}, + {"60", "64QAM 5/6"}, +}; + +#define MCS_IDX_PER_STREAM (8) + +static inline u8 +il4965_rs_extract_rate(u32 rate_n_flags) +{ + return (u8) (rate_n_flags & 0xFF); +} + +static void +il4965_rs_rate_scale_clear_win(struct il_rate_scale_data *win) +{ + win->data = 0; + win->success_counter = 0; + win->success_ratio = IL_INVALID_VALUE; + win->counter = 0; + win->average_tpt = IL_INVALID_VALUE; + win->stamp = 0; +} + +static inline u8 +il4965_rs_is_valid_ant(u8 valid_antenna, u8 ant_type) +{ + return (ant_type & valid_antenna) == ant_type; +} + +/* + * removes the old data from the stats. All data that is older than + * TID_MAX_TIME_DIFF, will be deleted. + */ +static void +il4965_rs_tl_rm_old_stats(struct il_traffic_load *tl, u32 curr_time) +{ + /* The oldest age we want to keep */ + u32 oldest_time = curr_time - TID_MAX_TIME_DIFF; + + while (tl->queue_count && tl->time_stamp < oldest_time) { + tl->total -= tl->packet_count[tl->head]; + tl->packet_count[tl->head] = 0; + tl->time_stamp += TID_QUEUE_CELL_SPACING; + tl->queue_count--; + tl->head++; + if (tl->head >= TID_QUEUE_MAX_SIZE) + tl->head = 0; + } +} + +/* + * increment traffic load value for tid and also remove + * any old values if passed the certain time period + */ +static u8 +il4965_rs_tl_add_packet(struct il_lq_sta *lq_data, struct ieee80211_hdr *hdr) +{ + u32 curr_time = jiffies_to_msecs(jiffies); + u32 time_diff; + s32 idx; + struct il_traffic_load *tl = NULL; + u8 tid; + + if (ieee80211_is_data_qos(hdr->frame_control)) { + u8 *qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & 0xf; + } else + return MAX_TID_COUNT; + + if (unlikely(tid >= TID_MAX_LOAD_COUNT)) + return MAX_TID_COUNT; + + tl = &lq_data->load[tid]; + + curr_time -= curr_time % TID_ROUND_VALUE; + + /* Happens only for the first packet. Initialize the data */ + if (!(tl->queue_count)) { + tl->total = 1; + tl->time_stamp = curr_time; + tl->queue_count = 1; + tl->head = 0; + tl->packet_count[0] = 1; + return MAX_TID_COUNT; + } + + time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time); + idx = time_diff / TID_QUEUE_CELL_SPACING; + + /* The history is too long: remove data that is older than */ + /* TID_MAX_TIME_DIFF */ + if (idx >= TID_QUEUE_MAX_SIZE) + il4965_rs_tl_rm_old_stats(tl, curr_time); + + idx = (tl->head + idx) % TID_QUEUE_MAX_SIZE; + tl->packet_count[idx] = tl->packet_count[idx] + 1; + tl->total = tl->total + 1; + + if ((idx + 1) > tl->queue_count) + tl->queue_count = idx + 1; + + return tid; +} + +/* + get the traffic load value for tid +*/ +static u32 +il4965_rs_tl_get_load(struct il_lq_sta *lq_data, u8 tid) +{ + u32 curr_time = jiffies_to_msecs(jiffies); + u32 time_diff; + s32 idx; + struct il_traffic_load *tl = NULL; + + if (tid >= TID_MAX_LOAD_COUNT) + return 0; + + tl = &(lq_data->load[tid]); + + curr_time -= curr_time % TID_ROUND_VALUE; + + if (!(tl->queue_count)) + return 0; + + time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time); + idx = time_diff / TID_QUEUE_CELL_SPACING; + + /* The history is too long: remove data that is older than */ + /* TID_MAX_TIME_DIFF */ + if (idx >= TID_QUEUE_MAX_SIZE) + il4965_rs_tl_rm_old_stats(tl, curr_time); + + return tl->total; +} + +static int +il4965_rs_tl_turn_on_agg_for_tid(struct il_priv *il, struct il_lq_sta *lq_data, + u8 tid, struct ieee80211_sta *sta) +{ + int ret = -EAGAIN; + u32 load; + + load = il4965_rs_tl_get_load(lq_data, tid); + + if (load > IL_AGG_LOAD_THRESHOLD) { + D_HT("Starting Tx agg: STA: %pM tid: %d\n", sta->addr, tid); + ret = ieee80211_start_tx_ba_session(sta, tid, 5000); + if (ret == -EAGAIN) { + /* + * driver and mac80211 is out of sync + * this might be cause by reloading firmware + * stop the tx ba session here + */ + IL_ERR("Fail start Tx agg on tid: %d\n", tid); + ieee80211_stop_tx_ba_session(sta, tid); + } + } else + D_HT("Aggregation not enabled for tid %d because load = %u\n", + tid, load); + + return ret; +} + +static void +il4965_rs_tl_turn_on_agg(struct il_priv *il, u8 tid, struct il_lq_sta *lq_data, + struct ieee80211_sta *sta) +{ + if (tid < TID_MAX_LOAD_COUNT) + il4965_rs_tl_turn_on_agg_for_tid(il, lq_data, tid, sta); + else + IL_ERR("tid exceeds max load count: %d/%d\n", tid, + TID_MAX_LOAD_COUNT); +} + +static inline int +il4965_get_il4965_num_of_ant_from_rate(u32 rate_n_flags) +{ + return !!(rate_n_flags & RATE_MCS_ANT_A_MSK) + + !!(rate_n_flags & RATE_MCS_ANT_B_MSK) + + !!(rate_n_flags & RATE_MCS_ANT_C_MSK); +} + +/* + * Static function to get the expected throughput from an il_scale_tbl_info + * that wraps a NULL pointer check + */ +static s32 +il4965_get_expected_tpt(struct il_scale_tbl_info *tbl, int rs_idx) +{ + if (tbl->expected_tpt) + return tbl->expected_tpt[rs_idx]; + return 0; +} + +/** + * il4965_rs_collect_tx_data - Update the success/failure sliding win + * + * We keep a sliding win of the last 62 packets transmitted + * at this rate. win->data contains the bitmask of successful + * packets. + */ +static int +il4965_rs_collect_tx_data(struct il_scale_tbl_info *tbl, int scale_idx, + int attempts, int successes) +{ + struct il_rate_scale_data *win = NULL; + static const u64 mask = (((u64) 1) << (RATE_MAX_WINDOW - 1)); + s32 fail_count, tpt; + + if (scale_idx < 0 || scale_idx >= RATE_COUNT) + return -EINVAL; + + /* Select win for current tx bit rate */ + win = &(tbl->win[scale_idx]); + + /* Get expected throughput */ + tpt = il4965_get_expected_tpt(tbl, scale_idx); + + /* + * Keep track of only the latest 62 tx frame attempts in this rate's + * history win; anything older isn't really relevant any more. + * If we have filled up the sliding win, drop the oldest attempt; + * if the oldest attempt (highest bit in bitmap) shows "success", + * subtract "1" from the success counter (this is the main reason + * we keep these bitmaps!). + */ + while (attempts > 0) { + if (win->counter >= RATE_MAX_WINDOW) { + + /* remove earliest */ + win->counter = RATE_MAX_WINDOW - 1; + + if (win->data & mask) { + win->data &= ~mask; + win->success_counter--; + } + } + + /* Increment frames-attempted counter */ + win->counter++; + + /* Shift bitmap by one frame to throw away oldest history */ + win->data <<= 1; + + /* Mark the most recent #successes attempts as successful */ + if (successes > 0) { + win->success_counter++; + win->data |= 0x1; + successes--; + } + + attempts--; + } + + /* Calculate current success ratio, avoid divide-by-0! */ + if (win->counter > 0) + win->success_ratio = + 128 * (100 * win->success_counter) / win->counter; + else + win->success_ratio = IL_INVALID_VALUE; + + fail_count = win->counter - win->success_counter; + + /* Calculate average throughput, if we have enough history. */ + if (fail_count >= RATE_MIN_FAILURE_TH || + win->success_counter >= RATE_MIN_SUCCESS_TH) + win->average_tpt = (win->success_ratio * tpt + 64) / 128; + else + win->average_tpt = IL_INVALID_VALUE; + + /* Tag this win as having been updated */ + win->stamp = jiffies; + + return 0; +} + +/* + * Fill uCode API rate_n_flags field, based on "search" or "active" table. + */ +static u32 +il4965_rate_n_flags_from_tbl(struct il_priv *il, struct il_scale_tbl_info *tbl, + int idx, u8 use_green) +{ + u32 rate_n_flags = 0; + + if (is_legacy(tbl->lq_type)) { + rate_n_flags = il_rates[idx].plcp; + if (idx >= IL_FIRST_CCK_RATE && idx <= IL_LAST_CCK_RATE) + rate_n_flags |= RATE_MCS_CCK_MSK; + + } else if (is_Ht(tbl->lq_type)) { + if (idx > IL_LAST_OFDM_RATE) { + IL_ERR("Invalid HT rate idx %d\n", idx); + idx = IL_LAST_OFDM_RATE; + } + rate_n_flags = RATE_MCS_HT_MSK; + + if (is_siso(tbl->lq_type)) + rate_n_flags |= il_rates[idx].plcp_siso; + else + rate_n_flags |= il_rates[idx].plcp_mimo2; + } else { + IL_ERR("Invalid tbl->lq_type %d\n", tbl->lq_type); + } + + rate_n_flags |= + ((tbl->ant_type << RATE_MCS_ANT_POS) & RATE_MCS_ANT_ABC_MSK); + + if (is_Ht(tbl->lq_type)) { + if (tbl->is_ht40) { + if (tbl->is_dup) + rate_n_flags |= RATE_MCS_DUP_MSK; + else + rate_n_flags |= RATE_MCS_HT40_MSK; + } + if (tbl->is_SGI) + rate_n_flags |= RATE_MCS_SGI_MSK; + + if (use_green) { + rate_n_flags |= RATE_MCS_GF_MSK; + if (is_siso(tbl->lq_type) && tbl->is_SGI) { + rate_n_flags &= ~RATE_MCS_SGI_MSK; + IL_ERR("GF was set with SGI:SISO\n"); + } + } + } + return rate_n_flags; +} + +/* + * Interpret uCode API's rate_n_flags format, + * fill "search" or "active" tx mode table. + */ +static int +il4965_rs_get_tbl_info_from_mcs(const u32 rate_n_flags, + enum ieee80211_band band, + struct il_scale_tbl_info *tbl, int *rate_idx) +{ + u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK); + u8 il4965_num_of_ant = + il4965_get_il4965_num_of_ant_from_rate(rate_n_flags); + u8 mcs; + + memset(tbl, 0, sizeof(struct il_scale_tbl_info)); + *rate_idx = il4965_hwrate_to_plcp_idx(rate_n_flags); + + if (*rate_idx == RATE_INVALID) { + *rate_idx = -1; + return -EINVAL; + } + tbl->is_SGI = 0; /* default legacy setup */ + tbl->is_ht40 = 0; + tbl->is_dup = 0; + tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS); + tbl->lq_type = LQ_NONE; + tbl->max_search = IL_MAX_SEARCH; + + /* legacy rate format */ + if (!(rate_n_flags & RATE_MCS_HT_MSK)) { + if (il4965_num_of_ant == 1) { + if (band == IEEE80211_BAND_5GHZ) + tbl->lq_type = LQ_A; + else + tbl->lq_type = LQ_G; + } + /* HT rate format */ + } else { + if (rate_n_flags & RATE_MCS_SGI_MSK) + tbl->is_SGI = 1; + + if ((rate_n_flags & RATE_MCS_HT40_MSK) || + (rate_n_flags & RATE_MCS_DUP_MSK)) + tbl->is_ht40 = 1; + + if (rate_n_flags & RATE_MCS_DUP_MSK) + tbl->is_dup = 1; + + mcs = il4965_rs_extract_rate(rate_n_flags); + + /* SISO */ + if (mcs <= RATE_SISO_60M_PLCP) { + if (il4965_num_of_ant == 1) + tbl->lq_type = LQ_SISO; /*else NONE */ + /* MIMO2 */ + } else { + if (il4965_num_of_ant == 2) + tbl->lq_type = LQ_MIMO2; + } + } + return 0; +} + +/* switch to another antenna/antennas and return 1 */ +/* if no other valid antenna found, return 0 */ +static int +il4965_rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags, + struct il_scale_tbl_info *tbl) +{ + u8 new_ant_type; + + if (!tbl->ant_type || tbl->ant_type > ANT_ABC) + return 0; + + if (!il4965_rs_is_valid_ant(valid_ant, tbl->ant_type)) + return 0; + + new_ant_type = ant_toggle_lookup[tbl->ant_type]; + + while (new_ant_type != tbl->ant_type && + !il4965_rs_is_valid_ant(valid_ant, new_ant_type)) + new_ant_type = ant_toggle_lookup[new_ant_type]; + + if (new_ant_type == tbl->ant_type) + return 0; + + tbl->ant_type = new_ant_type; + *rate_n_flags &= ~RATE_MCS_ANT_ABC_MSK; + *rate_n_flags |= new_ant_type << RATE_MCS_ANT_POS; + return 1; +} + +/** + * Green-field mode is valid if the station supports it and + * there are no non-GF stations present in the BSS. + */ +static bool +il4965_rs_use_green(struct ieee80211_sta *sta) +{ + struct il_station_priv *sta_priv = (void *)sta->drv_priv; + struct il_rxon_context *ctx = sta_priv->common.ctx; + + return (sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) && + !(ctx->ht.non_gf_sta_present); +} + +/** + * il4965_rs_get_supported_rates - get the available rates + * + * if management frame or broadcast frame only return + * basic available rates. + * + */ +static u16 +il4965_rs_get_supported_rates(struct il_lq_sta *lq_sta, + struct ieee80211_hdr *hdr, + enum il_table_type rate_type) +{ + if (is_legacy(rate_type)) { + return lq_sta->active_legacy_rate; + } else { + if (is_siso(rate_type)) + return lq_sta->active_siso_rate; + else + return lq_sta->active_mimo2_rate; + } +} + +static u16 +il4965_rs_get_adjacent_rate(struct il_priv *il, u8 idx, u16 rate_mask, + int rate_type) +{ + u8 high = RATE_INVALID; + u8 low = RATE_INVALID; + + /* 802.11A or ht walks to the next literal adjacent rate in + * the rate table */ + if (is_a_band(rate_type) || !is_legacy(rate_type)) { + int i; + u32 mask; + + /* Find the previous rate that is in the rate mask */ + i = idx - 1; + for (mask = (1 << i); i >= 0; i--, mask >>= 1) { + if (rate_mask & mask) { + low = i; + break; + } + } + + /* Find the next rate that is in the rate mask */ + i = idx + 1; + for (mask = (1 << i); i < RATE_COUNT; i++, mask <<= 1) { + if (rate_mask & mask) { + high = i; + break; + } + } + + return (high << 8) | low; + } + + low = idx; + while (low != RATE_INVALID) { + low = il_rates[low].prev_rs; + if (low == RATE_INVALID) + break; + if (rate_mask & (1 << low)) + break; + D_RATE("Skipping masked lower rate: %d\n", low); + } + + high = idx; + while (high != RATE_INVALID) { + high = il_rates[high].next_rs; + if (high == RATE_INVALID) + break; + if (rate_mask & (1 << high)) + break; + D_RATE("Skipping masked higher rate: %d\n", high); + } + + return (high << 8) | low; +} + +static u32 +il4965_rs_get_lower_rate(struct il_lq_sta *lq_sta, + struct il_scale_tbl_info *tbl, u8 scale_idx, + u8 ht_possible) +{ + s32 low; + u16 rate_mask; + u16 high_low; + u8 switch_to_legacy = 0; + u8 is_green = lq_sta->is_green; + struct il_priv *il = lq_sta->drv; + + /* check if we need to switch from HT to legacy rates. + * assumption is that mandatory rates (1Mbps or 6Mbps) + * are always supported (spec demand) */ + if (!is_legacy(tbl->lq_type) && (!ht_possible || !scale_idx)) { + switch_to_legacy = 1; + scale_idx = rs_ht_to_legacy[scale_idx]; + if (lq_sta->band == IEEE80211_BAND_5GHZ) + tbl->lq_type = LQ_A; + else + tbl->lq_type = LQ_G; + + if (il4965_num_of_ant(tbl->ant_type) > 1) + tbl->ant_type = + il4965_first_antenna(il->hw_params.valid_tx_ant); + + tbl->is_ht40 = 0; + tbl->is_SGI = 0; + tbl->max_search = IL_MAX_SEARCH; + } + + rate_mask = il4965_rs_get_supported_rates(lq_sta, NULL, tbl->lq_type); + + /* Mask with station rate restriction */ + if (is_legacy(tbl->lq_type)) { + /* supp_rates has no CCK bits in A mode */ + if (lq_sta->band == IEEE80211_BAND_5GHZ) + rate_mask = + (u16) (rate_mask & + (lq_sta->supp_rates << IL_FIRST_OFDM_RATE)); + else + rate_mask = (u16) (rate_mask & lq_sta->supp_rates); + } + + /* If we switched from HT to legacy, check current rate */ + if (switch_to_legacy && (rate_mask & (1 << scale_idx))) { + low = scale_idx; + goto out; + } + + high_low = + il4965_rs_get_adjacent_rate(lq_sta->drv, scale_idx, rate_mask, + tbl->lq_type); + low = high_low & 0xff; + + if (low == RATE_INVALID) + low = scale_idx; + +out: + return il4965_rate_n_flags_from_tbl(lq_sta->drv, tbl, low, is_green); +} + +/* + * Simple function to compare two rate scale table types + */ +static bool +il4965_table_type_matches(struct il_scale_tbl_info *a, + struct il_scale_tbl_info *b) +{ + return (a->lq_type == b->lq_type && a->ant_type == b->ant_type && + a->is_SGI == b->is_SGI); +} + +/* + * mac80211 sends us Tx status + */ +static void +il4965_rs_tx_status(void *il_r, struct ieee80211_supported_band *sband, + struct ieee80211_sta *sta, void *il_sta, + struct sk_buff *skb) +{ + int legacy_success; + int retries; + int rs_idx, mac_idx, i; + struct il_lq_sta *lq_sta = il_sta; + struct il_link_quality_cmd *table; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct il_priv *il = (struct il_priv *)il_r; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + enum mac80211_rate_control_flags mac_flags; + u32 tx_rate; + struct il_scale_tbl_info tbl_type; + struct il_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl; + struct il_station_priv *sta_priv = (void *)sta->drv_priv; + struct il_rxon_context *ctx = sta_priv->common.ctx; + + D_RATE("get frame ack response, update rate scale win\n"); + + /* Treat uninitialized rate scaling data same as non-existing. */ + if (!lq_sta) { + D_RATE("Station rate scaling not created yet.\n"); + return; + } else if (!lq_sta->drv) { + D_RATE("Rate scaling not initialized yet.\n"); + return; + } + + if (!ieee80211_is_data(hdr->frame_control) || + (info->flags & IEEE80211_TX_CTL_NO_ACK)) + return; + + /* This packet was aggregated but doesn't carry status info */ + if ((info->flags & IEEE80211_TX_CTL_AMPDU) && + !(info->flags & IEEE80211_TX_STAT_AMPDU)) + return; + + /* + * Ignore this Tx frame response if its initial rate doesn't match + * that of latest Link Quality command. There may be stragglers + * from a previous Link Quality command, but we're no longer interested + * in those; they're either from the "active" mode while we're trying + * to check "search" mode, or a prior "search" mode after we've moved + * to a new "search" mode (which might become the new "active" mode). + */ + table = &lq_sta->lq; + tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags); + il4965_rs_get_tbl_info_from_mcs(tx_rate, il->band, &tbl_type, &rs_idx); + if (il->band == IEEE80211_BAND_5GHZ) + rs_idx -= IL_FIRST_OFDM_RATE; + mac_flags = info->status.rates[0].flags; + mac_idx = info->status.rates[0].idx; + /* For HT packets, map MCS to PLCP */ + if (mac_flags & IEEE80211_TX_RC_MCS) { + mac_idx &= RATE_MCS_CODE_MSK; /* Remove # of streams */ + if (mac_idx >= (RATE_9M_IDX - IL_FIRST_OFDM_RATE)) + mac_idx++; + /* + * mac80211 HT idx is always zero-idxed; we need to move + * HT OFDM rates after CCK rates in 2.4 GHz band + */ + if (il->band == IEEE80211_BAND_2GHZ) + mac_idx += IL_FIRST_OFDM_RATE; + } + /* Here we actually compare this rate to the latest LQ command */ + if (mac_idx < 0 || + tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI) || + tbl_type.is_ht40 != !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH) || + tbl_type.is_dup != !!(mac_flags & IEEE80211_TX_RC_DUP_DATA) || + tbl_type.ant_type != info->antenna_sel_tx || + !!(tx_rate & RATE_MCS_HT_MSK) != !!(mac_flags & IEEE80211_TX_RC_MCS) + || !!(tx_rate & RATE_MCS_GF_MSK) != + !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD) || rs_idx != mac_idx) { + D_RATE("initial rate %d does not match %d (0x%x)\n", mac_idx, + rs_idx, tx_rate); + /* + * Since rates mis-match, the last LQ command may have failed. + * After IL_MISSED_RATE_MAX mis-matches, resync the uCode with + * ... driver. + */ + lq_sta->missed_rate_counter++; + if (lq_sta->missed_rate_counter > IL_MISSED_RATE_MAX) { + lq_sta->missed_rate_counter = 0; + il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_ASYNC, false); + } + /* Regardless, ignore this status info for outdated rate */ + return; + } else + /* Rate did match, so reset the missed_rate_counter */ + lq_sta->missed_rate_counter = 0; + + /* Figure out if rate scale algorithm is in active or search table */ + if (il4965_table_type_matches + (&tbl_type, &(lq_sta->lq_info[lq_sta->active_tbl]))) { + curr_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + other_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); + } else + if (il4965_table_type_matches + (&tbl_type, &lq_sta->lq_info[1 - lq_sta->active_tbl])) { + curr_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); + other_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + } else { + D_RATE("Neither active nor search matches tx rate\n"); + tmp_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + D_RATE("active- lq:%x, ant:%x, SGI:%d\n", tmp_tbl->lq_type, + tmp_tbl->ant_type, tmp_tbl->is_SGI); + tmp_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); + D_RATE("search- lq:%x, ant:%x, SGI:%d\n", tmp_tbl->lq_type, + tmp_tbl->ant_type, tmp_tbl->is_SGI); + D_RATE("actual- lq:%x, ant:%x, SGI:%d\n", tbl_type.lq_type, + tbl_type.ant_type, tbl_type.is_SGI); + /* + * no matching table found, let's by-pass the data collection + * and continue to perform rate scale to find the rate table + */ + il4965_rs_stay_in_table(lq_sta, true); + goto done; + } + + /* + * Updating the frame history depends on whether packets were + * aggregated. + * + * For aggregation, all packets were transmitted at the same rate, the + * first idx into rate scale table. + */ + if (info->flags & IEEE80211_TX_STAT_AMPDU) { + tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags); + il4965_rs_get_tbl_info_from_mcs(tx_rate, il->band, &tbl_type, + &rs_idx); + il4965_rs_collect_tx_data(curr_tbl, rs_idx, + info->status.ampdu_len, + info->status.ampdu_ack_len); + + /* Update success/fail counts if not searching for new mode */ + if (lq_sta->stay_in_tbl) { + lq_sta->total_success += info->status.ampdu_ack_len; + lq_sta->total_failed += + (info->status.ampdu_len - + info->status.ampdu_ack_len); + } + } else { + /* + * For legacy, update frame history with for each Tx retry. + */ + retries = info->status.rates[0].count - 1; + /* HW doesn't send more than 15 retries */ + retries = min(retries, 15); + + /* The last transmission may have been successful */ + legacy_success = !!(info->flags & IEEE80211_TX_STAT_ACK); + /* Collect data for each rate used during failed TX attempts */ + for (i = 0; i <= retries; ++i) { + tx_rate = le32_to_cpu(table->rs_table[i].rate_n_flags); + il4965_rs_get_tbl_info_from_mcs(tx_rate, il->band, + &tbl_type, &rs_idx); + /* + * Only collect stats if retried rate is in the same RS + * table as active/search. + */ + if (il4965_table_type_matches(&tbl_type, curr_tbl)) + tmp_tbl = curr_tbl; + else if (il4965_table_type_matches + (&tbl_type, other_tbl)) + tmp_tbl = other_tbl; + else + continue; + il4965_rs_collect_tx_data(tmp_tbl, rs_idx, 1, + i < + retries ? 0 : legacy_success); + } + + /* Update success/fail counts if not searching for new mode */ + if (lq_sta->stay_in_tbl) { + lq_sta->total_success += legacy_success; + lq_sta->total_failed += retries + (1 - legacy_success); + } + } + /* The last TX rate is cached in lq_sta; it's set in if/else above */ + lq_sta->last_rate_n_flags = tx_rate; +done: + /* See if there's a better rate or modulation mode to try. */ + if (sta->supp_rates[sband->band]) + il4965_rs_rate_scale_perform(il, skb, sta, lq_sta); +} + +/* + * Begin a period of staying with a selected modulation mode. + * Set "stay_in_tbl" flag to prevent any mode switches. + * Set frame tx success limits according to legacy vs. high-throughput, + * and reset overall (spanning all rates) tx success history stats. + * These control how long we stay using same modulation mode before + * searching for a new mode. + */ +static void +il4965_rs_set_stay_in_table(struct il_priv *il, u8 is_legacy, + struct il_lq_sta *lq_sta) +{ + D_RATE("we are staying in the same table\n"); + lq_sta->stay_in_tbl = 1; /* only place this gets set */ + if (is_legacy) { + lq_sta->table_count_limit = IL_LEGACY_TBL_COUNT; + lq_sta->max_failure_limit = IL_LEGACY_FAILURE_LIMIT; + lq_sta->max_success_limit = IL_LEGACY_SUCCESS_LIMIT; + } else { + lq_sta->table_count_limit = IL_NONE_LEGACY_TBL_COUNT; + lq_sta->max_failure_limit = IL_NONE_LEGACY_FAILURE_LIMIT; + lq_sta->max_success_limit = IL_NONE_LEGACY_SUCCESS_LIMIT; + } + lq_sta->table_count = 0; + lq_sta->total_failed = 0; + lq_sta->total_success = 0; + lq_sta->flush_timer = jiffies; + lq_sta->action_counter = 0; +} + +/* + * Find correct throughput table for given mode of modulation + */ +static void +il4965_rs_set_expected_tpt_table(struct il_lq_sta *lq_sta, + struct il_scale_tbl_info *tbl) +{ + /* Used to choose among HT tables */ + s32(*ht_tbl_pointer)[RATE_COUNT]; + + /* Check for invalid LQ type */ + if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) { + tbl->expected_tpt = expected_tpt_legacy; + return; + } + + /* Legacy rates have only one table */ + if (is_legacy(tbl->lq_type)) { + tbl->expected_tpt = expected_tpt_legacy; + return; + } + + /* Choose among many HT tables depending on number of streams + * (SISO/MIMO2), channel width (20/40), SGI, and aggregation + * status */ + if (is_siso(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup)) + ht_tbl_pointer = expected_tpt_siso20MHz; + else if (is_siso(tbl->lq_type)) + ht_tbl_pointer = expected_tpt_siso40MHz; + else if (is_mimo2(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup)) + ht_tbl_pointer = expected_tpt_mimo2_20MHz; + else /* if (is_mimo2(tbl->lq_type)) <-- must be true */ + ht_tbl_pointer = expected_tpt_mimo2_40MHz; + + if (!tbl->is_SGI && !lq_sta->is_agg) /* Normal */ + tbl->expected_tpt = ht_tbl_pointer[0]; + else if (tbl->is_SGI && !lq_sta->is_agg) /* SGI */ + tbl->expected_tpt = ht_tbl_pointer[1]; + else if (!tbl->is_SGI && lq_sta->is_agg) /* AGG */ + tbl->expected_tpt = ht_tbl_pointer[2]; + else /* AGG+SGI */ + tbl->expected_tpt = ht_tbl_pointer[3]; +} + +/* + * Find starting rate for new "search" high-throughput mode of modulation. + * Goal is to find lowest expected rate (under perfect conditions) that is + * above the current measured throughput of "active" mode, to give new mode + * a fair chance to prove itself without too many challenges. + * + * This gets called when transitioning to more aggressive modulation + * (i.e. legacy to SISO or MIMO, or SISO to MIMO), as well as less aggressive + * (i.e. MIMO to SISO). When moving to MIMO, bit rate will typically need + * to decrease to match "active" throughput. When moving from MIMO to SISO, + * bit rate will typically need to increase, but not if performance was bad. + */ +static s32 +il4965_rs_get_best_rate(struct il_priv *il, struct il_lq_sta *lq_sta, + struct il_scale_tbl_info *tbl, /* "search" */ + u16 rate_mask, s8 idx) +{ + /* "active" values */ + struct il_scale_tbl_info *active_tbl = + &(lq_sta->lq_info[lq_sta->active_tbl]); + s32 active_sr = active_tbl->win[idx].success_ratio; + s32 active_tpt = active_tbl->expected_tpt[idx]; + + /* expected "search" throughput */ + s32 *tpt_tbl = tbl->expected_tpt; + + s32 new_rate, high, low, start_hi; + u16 high_low; + s8 rate = idx; + + new_rate = high = low = start_hi = RATE_INVALID; + + for (;;) { + high_low = + il4965_rs_get_adjacent_rate(il, rate, rate_mask, + tbl->lq_type); + + low = high_low & 0xff; + high = (high_low >> 8) & 0xff; + + /* + * Lower the "search" bit rate, to give new "search" mode + * approximately the same throughput as "active" if: + * + * 1) "Active" mode has been working modestly well (but not + * great), and expected "search" throughput (under perfect + * conditions) at candidate rate is above the actual + * measured "active" throughput (but less than expected + * "active" throughput under perfect conditions). + * OR + * 2) "Active" mode has been working perfectly or very well + * and expected "search" throughput (under perfect + * conditions) at candidate rate is above expected + * "active" throughput (under perfect conditions). + */ + if ((100 * tpt_tbl[rate] > lq_sta->last_tpt && + (active_sr > RATE_DECREASE_TH && active_sr <= RATE_HIGH_TH + && tpt_tbl[rate] <= active_tpt)) || + (active_sr >= RATE_SCALE_SWITCH && + tpt_tbl[rate] > active_tpt)) { + + /* (2nd or later pass) + * If we've already tried to raise the rate, and are + * now trying to lower it, use the higher rate. */ + if (start_hi != RATE_INVALID) { + new_rate = start_hi; + break; + } + + new_rate = rate; + + /* Loop again with lower rate */ + if (low != RATE_INVALID) + rate = low; + + /* Lower rate not available, use the original */ + else + break; + + /* Else try to raise the "search" rate to match "active" */ + } else { + /* (2nd or later pass) + * If we've already tried to lower the rate, and are + * now trying to raise it, use the lower rate. */ + if (new_rate != RATE_INVALID) + break; + + /* Loop again with higher rate */ + else if (high != RATE_INVALID) { + start_hi = high; + rate = high; + + /* Higher rate not available, use the original */ + } else { + new_rate = rate; + break; + } + } + } + + return new_rate; +} + +/* + * Set up search table for MIMO2 + */ +static int +il4965_rs_switch_to_mimo2(struct il_priv *il, struct il_lq_sta *lq_sta, + struct ieee80211_conf *conf, + struct ieee80211_sta *sta, + struct il_scale_tbl_info *tbl, int idx) +{ + u16 rate_mask; + s32 rate; + s8 is_green = lq_sta->is_green; + struct il_station_priv *sta_priv = (void *)sta->drv_priv; + struct il_rxon_context *ctx = sta_priv->common.ctx; + + if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported) + return -1; + + if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2) == + WLAN_HT_CAP_SM_PS_STATIC) + return -1; + + /* Need both Tx chains/antennas to support MIMO */ + if (il->hw_params.tx_chains_num < 2) + return -1; + + D_RATE("LQ: try to switch to MIMO2\n"); + + tbl->lq_type = LQ_MIMO2; + tbl->is_dup = lq_sta->is_dup; + tbl->action = 0; + tbl->max_search = IL_MAX_SEARCH; + rate_mask = lq_sta->active_mimo2_rate; + + if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap)) + tbl->is_ht40 = 1; + else + tbl->is_ht40 = 0; + + il4965_rs_set_expected_tpt_table(lq_sta, tbl); + + rate = il4965_rs_get_best_rate(il, lq_sta, tbl, rate_mask, idx); + + D_RATE("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask); + if (rate == RATE_INVALID || !((1 << rate) & rate_mask)) { + D_RATE("Can't switch with idx %d rate mask %x\n", rate, + rate_mask); + return -1; + } + tbl->current_rate = + il4965_rate_n_flags_from_tbl(il, tbl, rate, is_green); + + D_RATE("LQ: Switch to new mcs %X idx is green %X\n", tbl->current_rate, + is_green); + return 0; +} + +/* + * Set up search table for SISO + */ +static int +il4965_rs_switch_to_siso(struct il_priv *il, struct il_lq_sta *lq_sta, + struct ieee80211_conf *conf, struct ieee80211_sta *sta, + struct il_scale_tbl_info *tbl, int idx) +{ + u16 rate_mask; + u8 is_green = lq_sta->is_green; + s32 rate; + struct il_station_priv *sta_priv = (void *)sta->drv_priv; + struct il_rxon_context *ctx = sta_priv->common.ctx; + + if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported) + return -1; + + D_RATE("LQ: try to switch to SISO\n"); + + tbl->is_dup = lq_sta->is_dup; + tbl->lq_type = LQ_SISO; + tbl->action = 0; + tbl->max_search = IL_MAX_SEARCH; + rate_mask = lq_sta->active_siso_rate; + + if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap)) + tbl->is_ht40 = 1; + else + tbl->is_ht40 = 0; + + if (is_green) + tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield */ + + il4965_rs_set_expected_tpt_table(lq_sta, tbl); + rate = il4965_rs_get_best_rate(il, lq_sta, tbl, rate_mask, idx); + + D_RATE("LQ: get best rate %d mask %X\n", rate, rate_mask); + if (rate == RATE_INVALID || !((1 << rate) & rate_mask)) { + D_RATE("can not switch with idx %d rate mask %x\n", rate, + rate_mask); + return -1; + } + tbl->current_rate = + il4965_rate_n_flags_from_tbl(il, tbl, rate, is_green); + D_RATE("LQ: Switch to new mcs %X idx is green %X\n", tbl->current_rate, + is_green); + return 0; +} + +/* + * Try to switch to new modulation mode from legacy + */ +static int +il4965_rs_move_legacy_other(struct il_priv *il, struct il_lq_sta *lq_sta, + struct ieee80211_conf *conf, + struct ieee80211_sta *sta, int idx) +{ + struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + struct il_scale_tbl_info *search_tbl = + &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); + struct il_rate_scale_data *win = &(tbl->win[idx]); + u32 sz = + (sizeof(struct il_scale_tbl_info) - + (sizeof(struct il_rate_scale_data) * RATE_COUNT)); + u8 start_action; + u8 valid_tx_ant = il->hw_params.valid_tx_ant; + u8 tx_chains_num = il->hw_params.tx_chains_num; + int ret = 0; + u8 update_search_tbl_counter = 0; + + tbl->action = IL_LEGACY_SWITCH_SISO; + + start_action = tbl->action; + for (;;) { + lq_sta->action_counter++; + switch (tbl->action) { + case IL_LEGACY_SWITCH_ANTENNA1: + case IL_LEGACY_SWITCH_ANTENNA2: + D_RATE("LQ: Legacy toggle Antenna\n"); + + if ((tbl->action == IL_LEGACY_SWITCH_ANTENNA1 && + tx_chains_num <= 1) || + (tbl->action == IL_LEGACY_SWITCH_ANTENNA2 && + tx_chains_num <= 2)) + break; + + /* Don't change antenna if success has been great */ + if (win->success_ratio >= IL_RS_GOOD_RATIO) + break; + + /* Set up search table to try other antenna */ + memcpy(search_tbl, tbl, sz); + + if (il4965_rs_toggle_antenna + (valid_tx_ant, &search_tbl->current_rate, + search_tbl)) { + update_search_tbl_counter = 1; + il4965_rs_set_expected_tpt_table(lq_sta, + search_tbl); + goto out; + } + break; + case IL_LEGACY_SWITCH_SISO: + D_RATE("LQ: Legacy switch to SISO\n"); + + /* Set up search table to try SISO */ + memcpy(search_tbl, tbl, sz); + search_tbl->is_SGI = 0; + ret = + il4965_rs_switch_to_siso(il, lq_sta, conf, sta, + search_tbl, idx); + if (!ret) { + lq_sta->action_counter = 0; + goto out; + } + + break; + case IL_LEGACY_SWITCH_MIMO2_AB: + case IL_LEGACY_SWITCH_MIMO2_AC: + case IL_LEGACY_SWITCH_MIMO2_BC: + D_RATE("LQ: Legacy switch to MIMO2\n"); + + /* Set up search table to try MIMO */ + memcpy(search_tbl, tbl, sz); + search_tbl->is_SGI = 0; + + if (tbl->action == IL_LEGACY_SWITCH_MIMO2_AB) + search_tbl->ant_type = ANT_AB; + else if (tbl->action == IL_LEGACY_SWITCH_MIMO2_AC) + search_tbl->ant_type = ANT_AC; + else + search_tbl->ant_type = ANT_BC; + + if (!il4965_rs_is_valid_ant + (valid_tx_ant, search_tbl->ant_type)) + break; + + ret = + il4965_rs_switch_to_mimo2(il, lq_sta, conf, sta, + search_tbl, idx); + if (!ret) { + lq_sta->action_counter = 0; + goto out; + } + break; + } + tbl->action++; + if (tbl->action > IL_LEGACY_SWITCH_MIMO2_BC) + tbl->action = IL_LEGACY_SWITCH_ANTENNA1; + + if (tbl->action == start_action) + break; + + } + search_tbl->lq_type = LQ_NONE; + return 0; + +out: + lq_sta->search_better_tbl = 1; + tbl->action++; + if (tbl->action > IL_LEGACY_SWITCH_MIMO2_BC) + tbl->action = IL_LEGACY_SWITCH_ANTENNA1; + if (update_search_tbl_counter) + search_tbl->action = tbl->action; + return 0; + +} + +/* + * Try to switch to new modulation mode from SISO + */ +static int +il4965_rs_move_siso_to_other(struct il_priv *il, struct il_lq_sta *lq_sta, + struct ieee80211_conf *conf, + struct ieee80211_sta *sta, int idx) +{ + u8 is_green = lq_sta->is_green; + struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + struct il_scale_tbl_info *search_tbl = + &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); + struct il_rate_scale_data *win = &(tbl->win[idx]); + struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + u32 sz = + (sizeof(struct il_scale_tbl_info) - + (sizeof(struct il_rate_scale_data) * RATE_COUNT)); + u8 start_action; + u8 valid_tx_ant = il->hw_params.valid_tx_ant; + u8 tx_chains_num = il->hw_params.tx_chains_num; + u8 update_search_tbl_counter = 0; + int ret; + + start_action = tbl->action; + + for (;;) { + lq_sta->action_counter++; + switch (tbl->action) { + case IL_SISO_SWITCH_ANTENNA1: + case IL_SISO_SWITCH_ANTENNA2: + D_RATE("LQ: SISO toggle Antenna\n"); + if ((tbl->action == IL_SISO_SWITCH_ANTENNA1 && + tx_chains_num <= 1) || + (tbl->action == IL_SISO_SWITCH_ANTENNA2 && + tx_chains_num <= 2)) + break; + + if (win->success_ratio >= IL_RS_GOOD_RATIO) + break; + + memcpy(search_tbl, tbl, sz); + if (il4965_rs_toggle_antenna + (valid_tx_ant, &search_tbl->current_rate, + search_tbl)) { + update_search_tbl_counter = 1; + goto out; + } + break; + case IL_SISO_SWITCH_MIMO2_AB: + case IL_SISO_SWITCH_MIMO2_AC: + case IL_SISO_SWITCH_MIMO2_BC: + D_RATE("LQ: SISO switch to MIMO2\n"); + memcpy(search_tbl, tbl, sz); + search_tbl->is_SGI = 0; + + if (tbl->action == IL_SISO_SWITCH_MIMO2_AB) + search_tbl->ant_type = ANT_AB; + else if (tbl->action == IL_SISO_SWITCH_MIMO2_AC) + search_tbl->ant_type = ANT_AC; + else + search_tbl->ant_type = ANT_BC; + + if (!il4965_rs_is_valid_ant + (valid_tx_ant, search_tbl->ant_type)) + break; + + ret = + il4965_rs_switch_to_mimo2(il, lq_sta, conf, sta, + search_tbl, idx); + if (!ret) + goto out; + break; + case IL_SISO_SWITCH_GI: + if (!tbl->is_ht40 && + !(ht_cap->cap & IEEE80211_HT_CAP_SGI_20)) + break; + if (tbl->is_ht40 && + !(ht_cap->cap & IEEE80211_HT_CAP_SGI_40)) + break; + + D_RATE("LQ: SISO toggle SGI/NGI\n"); + + memcpy(search_tbl, tbl, sz); + if (is_green) { + if (!tbl->is_SGI) + break; + else + IL_ERR("SGI was set in GF+SISO\n"); + } + search_tbl->is_SGI = !tbl->is_SGI; + il4965_rs_set_expected_tpt_table(lq_sta, search_tbl); + if (tbl->is_SGI) { + s32 tpt = lq_sta->last_tpt / 100; + if (tpt >= search_tbl->expected_tpt[idx]) + break; + } + search_tbl->current_rate = + il4965_rate_n_flags_from_tbl(il, search_tbl, idx, + is_green); + update_search_tbl_counter = 1; + goto out; + } + tbl->action++; + if (tbl->action > IL_SISO_SWITCH_GI) + tbl->action = IL_SISO_SWITCH_ANTENNA1; + + if (tbl->action == start_action) + break; + } + search_tbl->lq_type = LQ_NONE; + return 0; + +out: + lq_sta->search_better_tbl = 1; + tbl->action++; + if (tbl->action > IL_SISO_SWITCH_GI) + tbl->action = IL_SISO_SWITCH_ANTENNA1; + if (update_search_tbl_counter) + search_tbl->action = tbl->action; + + return 0; +} + +/* + * Try to switch to new modulation mode from MIMO2 + */ +static int +il4965_rs_move_mimo2_to_other(struct il_priv *il, struct il_lq_sta *lq_sta, + struct ieee80211_conf *conf, + struct ieee80211_sta *sta, int idx) +{ + s8 is_green = lq_sta->is_green; + struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + struct il_scale_tbl_info *search_tbl = + &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); + struct il_rate_scale_data *win = &(tbl->win[idx]); + struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + u32 sz = + (sizeof(struct il_scale_tbl_info) - + (sizeof(struct il_rate_scale_data) * RATE_COUNT)); + u8 start_action; + u8 valid_tx_ant = il->hw_params.valid_tx_ant; + u8 tx_chains_num = il->hw_params.tx_chains_num; + u8 update_search_tbl_counter = 0; + int ret; + + start_action = tbl->action; + for (;;) { + lq_sta->action_counter++; + switch (tbl->action) { + case IL_MIMO2_SWITCH_ANTENNA1: + case IL_MIMO2_SWITCH_ANTENNA2: + D_RATE("LQ: MIMO2 toggle Antennas\n"); + + if (tx_chains_num <= 2) + break; + + if (win->success_ratio >= IL_RS_GOOD_RATIO) + break; + + memcpy(search_tbl, tbl, sz); + if (il4965_rs_toggle_antenna + (valid_tx_ant, &search_tbl->current_rate, + search_tbl)) { + update_search_tbl_counter = 1; + goto out; + } + break; + case IL_MIMO2_SWITCH_SISO_A: + case IL_MIMO2_SWITCH_SISO_B: + case IL_MIMO2_SWITCH_SISO_C: + D_RATE("LQ: MIMO2 switch to SISO\n"); + + /* Set up new search table for SISO */ + memcpy(search_tbl, tbl, sz); + + if (tbl->action == IL_MIMO2_SWITCH_SISO_A) + search_tbl->ant_type = ANT_A; + else if (tbl->action == IL_MIMO2_SWITCH_SISO_B) + search_tbl->ant_type = ANT_B; + else + search_tbl->ant_type = ANT_C; + + if (!il4965_rs_is_valid_ant + (valid_tx_ant, search_tbl->ant_type)) + break; + + ret = + il4965_rs_switch_to_siso(il, lq_sta, conf, sta, + search_tbl, idx); + if (!ret) + goto out; + + break; + + case IL_MIMO2_SWITCH_GI: + if (!tbl->is_ht40 && + !(ht_cap->cap & IEEE80211_HT_CAP_SGI_20)) + break; + if (tbl->is_ht40 && + !(ht_cap->cap & IEEE80211_HT_CAP_SGI_40)) + break; + + D_RATE("LQ: MIMO2 toggle SGI/NGI\n"); + + /* Set up new search table for MIMO2 */ + memcpy(search_tbl, tbl, sz); + search_tbl->is_SGI = !tbl->is_SGI; + il4965_rs_set_expected_tpt_table(lq_sta, search_tbl); + /* + * If active table already uses the fastest possible + * modulation (dual stream with short guard interval), + * and it's working well, there's no need to look + * for a better type of modulation! + */ + if (tbl->is_SGI) { + s32 tpt = lq_sta->last_tpt / 100; + if (tpt >= search_tbl->expected_tpt[idx]) + break; + } + search_tbl->current_rate = + il4965_rate_n_flags_from_tbl(il, search_tbl, idx, + is_green); + update_search_tbl_counter = 1; + goto out; + + } + tbl->action++; + if (tbl->action > IL_MIMO2_SWITCH_GI) + tbl->action = IL_MIMO2_SWITCH_ANTENNA1; + + if (tbl->action == start_action) + break; + } + search_tbl->lq_type = LQ_NONE; + return 0; +out: + lq_sta->search_better_tbl = 1; + tbl->action++; + if (tbl->action > IL_MIMO2_SWITCH_GI) + tbl->action = IL_MIMO2_SWITCH_ANTENNA1; + if (update_search_tbl_counter) + search_tbl->action = tbl->action; + + return 0; + +} + +/* + * Check whether we should continue using same modulation mode, or + * begin search for a new mode, based on: + * 1) # tx successes or failures while using this mode + * 2) # times calling this function + * 3) elapsed time in this mode (not used, for now) + */ +static void +il4965_rs_stay_in_table(struct il_lq_sta *lq_sta, bool force_search) +{ + struct il_scale_tbl_info *tbl; + int i; + int active_tbl; + int flush_interval_passed = 0; + struct il_priv *il; + + il = lq_sta->drv; + active_tbl = lq_sta->active_tbl; + + tbl = &(lq_sta->lq_info[active_tbl]); + + /* If we've been disallowing search, see if we should now allow it */ + if (lq_sta->stay_in_tbl) { + + /* Elapsed time using current modulation mode */ + if (lq_sta->flush_timer) + flush_interval_passed = + time_after(jiffies, + (unsigned long)(lq_sta->flush_timer + + RATE_SCALE_FLUSH_INTVL)); + + /* + * Check if we should allow search for new modulation mode. + * If many frames have failed or succeeded, or we've used + * this same modulation for a long time, allow search, and + * reset history stats that keep track of whether we should + * allow a new search. Also (below) reset all bitmaps and + * stats in active history. + */ + if (force_search || + lq_sta->total_failed > lq_sta->max_failure_limit || + lq_sta->total_success > lq_sta->max_success_limit || + (!lq_sta->search_better_tbl && lq_sta->flush_timer && + flush_interval_passed)) { + D_RATE("LQ: stay is expired %d %d %d\n:", + lq_sta->total_failed, lq_sta->total_success, + flush_interval_passed); + + /* Allow search for new mode */ + lq_sta->stay_in_tbl = 0; /* only place reset */ + lq_sta->total_failed = 0; + lq_sta->total_success = 0; + lq_sta->flush_timer = 0; + + /* + * Else if we've used this modulation mode enough repetitions + * (regardless of elapsed time or success/failure), reset + * history bitmaps and rate-specific stats for all rates in + * active table. + */ + } else { + lq_sta->table_count++; + if (lq_sta->table_count >= lq_sta->table_count_limit) { + lq_sta->table_count = 0; + + D_RATE("LQ: stay in table clear win\n"); + for (i = 0; i < RATE_COUNT; i++) + il4965_rs_rate_scale_clear_win(& + (tbl-> + win + [i])); + } + } + + /* If transitioning to allow "search", reset all history + * bitmaps and stats in active table (this will become the new + * "search" table). */ + if (!lq_sta->stay_in_tbl) { + for (i = 0; i < RATE_COUNT; i++) + il4965_rs_rate_scale_clear_win(&(tbl->win[i])); + } + } +} + +/* + * setup rate table in uCode + */ +static void +il4965_rs_update_rate_tbl(struct il_priv *il, struct il_rxon_context *ctx, + struct il_lq_sta *lq_sta, + struct il_scale_tbl_info *tbl, int idx, u8 is_green) +{ + u32 rate; + + /* Update uCode's rate table. */ + rate = il4965_rate_n_flags_from_tbl(il, tbl, idx, is_green); + il4965_rs_fill_link_cmd(il, lq_sta, rate); + il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_ASYNC, false); +} + +/* + * Do rate scaling and search for new modulation mode. + */ +static void +il4965_rs_rate_scale_perform(struct il_priv *il, struct sk_buff *skb, + struct ieee80211_sta *sta, + struct il_lq_sta *lq_sta) +{ + struct ieee80211_hw *hw = il->hw; + struct ieee80211_conf *conf = &hw->conf; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + int low = RATE_INVALID; + int high = RATE_INVALID; + int idx; + int i; + struct il_rate_scale_data *win = NULL; + int current_tpt = IL_INVALID_VALUE; + int low_tpt = IL_INVALID_VALUE; + int high_tpt = IL_INVALID_VALUE; + u32 fail_count; + s8 scale_action = 0; + u16 rate_mask; + u8 update_lq = 0; + struct il_scale_tbl_info *tbl, *tbl1; + u16 rate_scale_idx_msk = 0; + u8 is_green = 0; + u8 active_tbl = 0; + u8 done_search = 0; + u16 high_low; + s32 sr; + u8 tid = MAX_TID_COUNT; + struct il_tid_data *tid_data; + struct il_station_priv *sta_priv = (void *)sta->drv_priv; + struct il_rxon_context *ctx = sta_priv->common.ctx; + + D_RATE("rate scale calculate new rate for skb\n"); + + /* Send management frames and NO_ACK data using lowest rate. */ + /* TODO: this could probably be improved.. */ + if (!ieee80211_is_data(hdr->frame_control) || + (info->flags & IEEE80211_TX_CTL_NO_ACK)) + return; + + lq_sta->supp_rates = sta->supp_rates[lq_sta->band]; + + tid = il4965_rs_tl_add_packet(lq_sta, hdr); + if (tid != MAX_TID_COUNT && (lq_sta->tx_agg_tid_en & (1 << tid))) { + tid_data = &il->stations[lq_sta->lq.sta_id].tid[tid]; + if (tid_data->agg.state == IL_AGG_OFF) + lq_sta->is_agg = 0; + else + lq_sta->is_agg = 1; + } else + lq_sta->is_agg = 0; + + /* + * Select rate-scale / modulation-mode table to work with in + * the rest of this function: "search" if searching for better + * modulation mode, or "active" if doing rate scaling within a mode. + */ + if (!lq_sta->search_better_tbl) + active_tbl = lq_sta->active_tbl; + else + active_tbl = 1 - lq_sta->active_tbl; + + tbl = &(lq_sta->lq_info[active_tbl]); + if (is_legacy(tbl->lq_type)) + lq_sta->is_green = 0; + else + lq_sta->is_green = il4965_rs_use_green(sta); + is_green = lq_sta->is_green; + + /* current tx rate */ + idx = lq_sta->last_txrate_idx; + + D_RATE("Rate scale idx %d for type %d\n", idx, tbl->lq_type); + + /* rates available for this association, and for modulation mode */ + rate_mask = il4965_rs_get_supported_rates(lq_sta, hdr, tbl->lq_type); + + D_RATE("mask 0x%04X\n", rate_mask); + + /* mask with station rate restriction */ + if (is_legacy(tbl->lq_type)) { + if (lq_sta->band == IEEE80211_BAND_5GHZ) + /* supp_rates has no CCK bits in A mode */ + rate_scale_idx_msk = + (u16) (rate_mask & + (lq_sta->supp_rates << IL_FIRST_OFDM_RATE)); + else + rate_scale_idx_msk = + (u16) (rate_mask & lq_sta->supp_rates); + + } else + rate_scale_idx_msk = rate_mask; + + if (!rate_scale_idx_msk) + rate_scale_idx_msk = rate_mask; + + if (!((1 << idx) & rate_scale_idx_msk)) { + IL_ERR("Current Rate is not valid\n"); + if (lq_sta->search_better_tbl) { + /* revert to active table if search table is not valid */ + tbl->lq_type = LQ_NONE; + lq_sta->search_better_tbl = 0; + tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + /* get "active" rate info */ + idx = il4965_hwrate_to_plcp_idx(tbl->current_rate); + il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx, + is_green); + } + return; + } + + /* Get expected throughput table and history win for current rate */ + if (!tbl->expected_tpt) { + IL_ERR("tbl->expected_tpt is NULL\n"); + return; + } + + /* force user max rate if set by user */ + if (lq_sta->max_rate_idx != -1 && lq_sta->max_rate_idx < idx) { + idx = lq_sta->max_rate_idx; + update_lq = 1; + win = &(tbl->win[idx]); + goto lq_update; + } + + win = &(tbl->win[idx]); + + /* + * If there is not enough history to calculate actual average + * throughput, keep analyzing results of more tx frames, without + * changing rate or mode (bypass most of the rest of this function). + * Set up new rate table in uCode only if old rate is not supported + * in current association (use new rate found above). + */ + fail_count = win->counter - win->success_counter; + if (fail_count < RATE_MIN_FAILURE_TH && + win->success_counter < RATE_MIN_SUCCESS_TH) { + D_RATE("LQ: still below TH. succ=%d total=%d " "for idx %d\n", + win->success_counter, win->counter, idx); + + /* Can't calculate this yet; not enough history */ + win->average_tpt = IL_INVALID_VALUE; + + /* Should we stay with this modulation mode, + * or search for a new one? */ + il4965_rs_stay_in_table(lq_sta, false); + + goto out; + } + /* Else we have enough samples; calculate estimate of + * actual average throughput */ + if (win->average_tpt != + ((win->success_ratio * tbl->expected_tpt[idx] + 64) / 128)) { + IL_ERR("expected_tpt should have been calculated by now\n"); + win->average_tpt = + ((win->success_ratio * tbl->expected_tpt[idx] + 64) / 128); + } + + /* If we are searching for better modulation mode, check success. */ + if (lq_sta->search_better_tbl) { + /* If good success, continue using the "search" mode; + * no need to send new link quality command, since we're + * continuing to use the setup that we've been trying. */ + if (win->average_tpt > lq_sta->last_tpt) { + + D_RATE("LQ: SWITCHING TO NEW TBL " + "suc=%d cur-tpt=%d old-tpt=%d\n", + win->success_ratio, win->average_tpt, + lq_sta->last_tpt); + + if (!is_legacy(tbl->lq_type)) + lq_sta->enable_counter = 1; + + /* Swap tables; "search" becomes "active" */ + lq_sta->active_tbl = active_tbl; + current_tpt = win->average_tpt; + + /* Else poor success; go back to mode in "active" table */ + } else { + + D_RATE("LQ: GOING BACK TO THE OLD TBL " + "suc=%d cur-tpt=%d old-tpt=%d\n", + win->success_ratio, win->average_tpt, + lq_sta->last_tpt); + + /* Nullify "search" table */ + tbl->lq_type = LQ_NONE; + + /* Revert to "active" table */ + active_tbl = lq_sta->active_tbl; + tbl = &(lq_sta->lq_info[active_tbl]); + + /* Revert to "active" rate and throughput info */ + idx = il4965_hwrate_to_plcp_idx(tbl->current_rate); + current_tpt = lq_sta->last_tpt; + + /* Need to set up a new rate table in uCode */ + update_lq = 1; + } + + /* Either way, we've made a decision; modulation mode + * search is done, allow rate adjustment next time. */ + lq_sta->search_better_tbl = 0; + done_search = 1; /* Don't switch modes below! */ + goto lq_update; + } + + /* (Else) not in search of better modulation mode, try for better + * starting rate, while staying in this mode. */ + high_low = + il4965_rs_get_adjacent_rate(il, idx, rate_scale_idx_msk, + tbl->lq_type); + low = high_low & 0xff; + high = (high_low >> 8) & 0xff; + + /* If user set max rate, dont allow higher than user constrain */ + if (lq_sta->max_rate_idx != -1 && lq_sta->max_rate_idx < high) + high = RATE_INVALID; + + sr = win->success_ratio; + + /* Collect measured throughputs for current and adjacent rates */ + current_tpt = win->average_tpt; + if (low != RATE_INVALID) + low_tpt = tbl->win[low].average_tpt; + if (high != RATE_INVALID) + high_tpt = tbl->win[high].average_tpt; + + scale_action = 0; + + /* Too many failures, decrease rate */ + if (sr <= RATE_DECREASE_TH || current_tpt == 0) { + D_RATE("decrease rate because of low success_ratio\n"); + scale_action = -1; + + /* No throughput measured yet for adjacent rates; try increase. */ + } else if (low_tpt == IL_INVALID_VALUE && high_tpt == IL_INVALID_VALUE) { + + if (high != RATE_INVALID && sr >= RATE_INCREASE_TH) + scale_action = 1; + else if (low != RATE_INVALID) + scale_action = 0; + } + + /* Both adjacent throughputs are measured, but neither one has better + * throughput; we're using the best rate, don't change it! */ + else if (low_tpt != IL_INVALID_VALUE && high_tpt != IL_INVALID_VALUE && + low_tpt < current_tpt && high_tpt < current_tpt) + scale_action = 0; + + /* At least one adjacent rate's throughput is measured, + * and may have better performance. */ + else { + /* Higher adjacent rate's throughput is measured */ + if (high_tpt != IL_INVALID_VALUE) { + /* Higher rate has better throughput */ + if (high_tpt > current_tpt && sr >= RATE_INCREASE_TH) + scale_action = 1; + else + scale_action = 0; + + /* Lower adjacent rate's throughput is measured */ + } else if (low_tpt != IL_INVALID_VALUE) { + /* Lower rate has better throughput */ + if (low_tpt > current_tpt) { + D_RATE("decrease rate because of low tpt\n"); + scale_action = -1; + } else if (sr >= RATE_INCREASE_TH) { + scale_action = 1; + } + } + } + + /* Sanity check; asked for decrease, but success rate or throughput + * has been good at old rate. Don't change it. */ + if (scale_action == -1 && low != RATE_INVALID && + (sr > RATE_HIGH_TH || current_tpt > 100 * tbl->expected_tpt[low])) + scale_action = 0; + + switch (scale_action) { + case -1: + /* Decrease starting rate, update uCode's rate table */ + if (low != RATE_INVALID) { + update_lq = 1; + idx = low; + } + + break; + case 1: + /* Increase starting rate, update uCode's rate table */ + if (high != RATE_INVALID) { + update_lq = 1; + idx = high; + } + + break; + case 0: + /* No change */ + default: + break; + } + + D_RATE("choose rate scale idx %d action %d low %d " "high %d type %d\n", + idx, scale_action, low, high, tbl->lq_type); + +lq_update: + /* Replace uCode's rate table for the destination station. */ + if (update_lq) + il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx, + is_green); + + /* Should we stay with this modulation mode, + * or search for a new one? */ + il4965_rs_stay_in_table(lq_sta, false); + + /* + * Search for new modulation mode if we're: + * 1) Not changing rates right now + * 2) Not just finishing up a search + * 3) Allowing a new search + */ + if (!update_lq && !done_search && !lq_sta->stay_in_tbl && win->counter) { + /* Save current throughput to compare with "search" throughput */ + lq_sta->last_tpt = current_tpt; + + /* Select a new "search" modulation mode to try. + * If one is found, set up the new "search" table. */ + if (is_legacy(tbl->lq_type)) + il4965_rs_move_legacy_other(il, lq_sta, conf, sta, idx); + else if (is_siso(tbl->lq_type)) + il4965_rs_move_siso_to_other(il, lq_sta, conf, sta, + idx); + else /* (is_mimo2(tbl->lq_type)) */ + il4965_rs_move_mimo2_to_other(il, lq_sta, conf, sta, + idx); + + /* If new "search" mode was selected, set up in uCode table */ + if (lq_sta->search_better_tbl) { + /* Access the "search" table, clear its history. */ + tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); + for (i = 0; i < RATE_COUNT; i++) + il4965_rs_rate_scale_clear_win(&(tbl->win[i])); + + /* Use new "search" start rate */ + idx = il4965_hwrate_to_plcp_idx(tbl->current_rate); + + D_RATE("Switch current mcs: %X idx: %d\n", + tbl->current_rate, idx); + il4965_rs_fill_link_cmd(il, lq_sta, tbl->current_rate); + il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_ASYNC, false); + } else + done_search = 1; + } + + if (done_search && !lq_sta->stay_in_tbl) { + /* If the "active" (non-search) mode was legacy, + * and we've tried switching antennas, + * but we haven't been able to try HT modes (not available), + * stay with best antenna legacy modulation for a while + * before next round of mode comparisons. */ + tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]); + if (is_legacy(tbl1->lq_type) && !conf_is_ht(conf) && + lq_sta->action_counter > tbl1->max_search) { + D_RATE("LQ: STAY in legacy table\n"); + il4965_rs_set_stay_in_table(il, 1, lq_sta); + } + + /* If we're in an HT mode, and all 3 mode switch actions + * have been tried and compared, stay in this best modulation + * mode for a while before next round of mode comparisons. */ + if (lq_sta->enable_counter && + lq_sta->action_counter >= tbl1->max_search) { + if (lq_sta->last_tpt > IL_AGG_TPT_THREHOLD && + (lq_sta->tx_agg_tid_en & (1 << tid)) && + tid != MAX_TID_COUNT) { + tid_data = + &il->stations[lq_sta->lq.sta_id].tid[tid]; + if (tid_data->agg.state == IL_AGG_OFF) { + D_RATE("try to aggregate tid %d\n", + tid); + il4965_rs_tl_turn_on_agg(il, tid, + lq_sta, sta); + } + } + il4965_rs_set_stay_in_table(il, 0, lq_sta); + } + } + +out: + tbl->current_rate = + il4965_rate_n_flags_from_tbl(il, tbl, idx, is_green); + i = idx; + lq_sta->last_txrate_idx = i; +} + +/** + * il4965_rs_initialize_lq - Initialize a station's hardware rate table + * + * The uCode's station table contains a table of fallback rates + * for automatic fallback during transmission. + * + * NOTE: This sets up a default set of values. These will be replaced later + * if the driver's iwl-4965-rs rate scaling algorithm is used, instead of + * rc80211_simple. + * + * NOTE: Run C_ADD_STA command to set up station table entry, before + * calling this function (which runs C_TX_LINK_QUALITY_CMD, + * which requires station table entry to exist). + */ +static void +il4965_rs_initialize_lq(struct il_priv *il, struct ieee80211_conf *conf, + struct ieee80211_sta *sta, struct il_lq_sta *lq_sta) +{ + struct il_scale_tbl_info *tbl; + int rate_idx; + int i; + u32 rate; + u8 use_green = il4965_rs_use_green(sta); + u8 active_tbl = 0; + u8 valid_tx_ant; + struct il_station_priv *sta_priv; + struct il_rxon_context *ctx; + + if (!sta || !lq_sta) + return; + + sta_priv = (void *)sta->drv_priv; + ctx = sta_priv->common.ctx; + + i = lq_sta->last_txrate_idx; + + valid_tx_ant = il->hw_params.valid_tx_ant; + + if (!lq_sta->search_better_tbl) + active_tbl = lq_sta->active_tbl; + else + active_tbl = 1 - lq_sta->active_tbl; + + tbl = &(lq_sta->lq_info[active_tbl]); + + if (i < 0 || i >= RATE_COUNT) + i = 0; + + rate = il_rates[i].plcp; + tbl->ant_type = il4965_first_antenna(valid_tx_ant); + rate |= tbl->ant_type << RATE_MCS_ANT_POS; + + if (i >= IL_FIRST_CCK_RATE && i <= IL_LAST_CCK_RATE) + rate |= RATE_MCS_CCK_MSK; + + il4965_rs_get_tbl_info_from_mcs(rate, il->band, tbl, &rate_idx); + if (!il4965_rs_is_valid_ant(valid_tx_ant, tbl->ant_type)) + il4965_rs_toggle_antenna(valid_tx_ant, &rate, tbl); + + rate = il4965_rate_n_flags_from_tbl(il, tbl, rate_idx, use_green); + tbl->current_rate = rate; + il4965_rs_set_expected_tpt_table(lq_sta, tbl); + il4965_rs_fill_link_cmd(NULL, lq_sta, rate); + il->stations[lq_sta->lq.sta_id].lq = &lq_sta->lq; + il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_SYNC, true); +} + +static void +il4965_rs_get_rate(void *il_r, struct ieee80211_sta *sta, void *il_sta, + struct ieee80211_tx_rate_control *txrc) +{ + + struct sk_buff *skb = txrc->skb; + struct ieee80211_supported_band *sband = txrc->sband; + struct il_priv *il __maybe_unused = (struct il_priv *)il_r; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct il_lq_sta *lq_sta = il_sta; + int rate_idx; + + D_RATE("rate scale calculate new rate for skb\n"); + + /* Get max rate if user set max rate */ + if (lq_sta) { + lq_sta->max_rate_idx = txrc->max_rate_idx; + if (sband->band == IEEE80211_BAND_5GHZ && + lq_sta->max_rate_idx != -1) + lq_sta->max_rate_idx += IL_FIRST_OFDM_RATE; + if (lq_sta->max_rate_idx < 0 || + lq_sta->max_rate_idx >= RATE_COUNT) + lq_sta->max_rate_idx = -1; + } + + /* Treat uninitialized rate scaling data same as non-existing. */ + if (lq_sta && !lq_sta->drv) { + D_RATE("Rate scaling not initialized yet.\n"); + il_sta = NULL; + } + + /* Send management frames and NO_ACK data using lowest rate. */ + if (rate_control_send_low(sta, il_sta, txrc)) + return; + + if (!lq_sta) + return; + + rate_idx = lq_sta->last_txrate_idx; + + if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) { + rate_idx -= IL_FIRST_OFDM_RATE; + /* 6M and 9M shared same MCS idx */ + rate_idx = (rate_idx > 0) ? (rate_idx - 1) : 0; + if (il4965_rs_extract_rate(lq_sta->last_rate_n_flags) >= + RATE_MIMO2_6M_PLCP) + rate_idx = rate_idx + MCS_IDX_PER_STREAM; + info->control.rates[0].flags = IEEE80211_TX_RC_MCS; + if (lq_sta->last_rate_n_flags & RATE_MCS_SGI_MSK) + info->control.rates[0].flags |= + IEEE80211_TX_RC_SHORT_GI; + if (lq_sta->last_rate_n_flags & RATE_MCS_DUP_MSK) + info->control.rates[0].flags |= + IEEE80211_TX_RC_DUP_DATA; + if (lq_sta->last_rate_n_flags & RATE_MCS_HT40_MSK) + info->control.rates[0].flags |= + IEEE80211_TX_RC_40_MHZ_WIDTH; + if (lq_sta->last_rate_n_flags & RATE_MCS_GF_MSK) + info->control.rates[0].flags |= + IEEE80211_TX_RC_GREEN_FIELD; + } else { + /* Check for invalid rates */ + if (rate_idx < 0 || rate_idx >= RATE_COUNT_LEGACY || + (sband->band == IEEE80211_BAND_5GHZ && + rate_idx < IL_FIRST_OFDM_RATE)) + rate_idx = rate_lowest_index(sband, sta); + /* On valid 5 GHz rate, adjust idx */ + else if (sband->band == IEEE80211_BAND_5GHZ) + rate_idx -= IL_FIRST_OFDM_RATE; + info->control.rates[0].flags = 0; + } + info->control.rates[0].idx = rate_idx; + +} + +static void * +il4965_rs_alloc_sta(void *il_rate, struct ieee80211_sta *sta, gfp_t gfp) +{ + struct il_station_priv *sta_priv = + (struct il_station_priv *)sta->drv_priv; + struct il_priv *il; + + il = (struct il_priv *)il_rate; + D_RATE("create station rate scale win\n"); + + return &sta_priv->lq_sta; +} + +/* + * Called after adding a new station to initialize rate scaling + */ +void +il4965_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta, u8 sta_id) +{ + int i, j; + struct ieee80211_hw *hw = il->hw; + struct ieee80211_conf *conf = &il->hw->conf; + struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + struct il_station_priv *sta_priv; + struct il_lq_sta *lq_sta; + struct ieee80211_supported_band *sband; + + sta_priv = (struct il_station_priv *)sta->drv_priv; + lq_sta = &sta_priv->lq_sta; + sband = hw->wiphy->bands[conf->channel->band]; + + lq_sta->lq.sta_id = sta_id; + + for (j = 0; j < LQ_SIZE; j++) + for (i = 0; i < RATE_COUNT; i++) + il4965_rs_rate_scale_clear_win(&lq_sta->lq_info[j]. + win[i]); + + lq_sta->flush_timer = 0; + lq_sta->supp_rates = sta->supp_rates[sband->band]; + for (j = 0; j < LQ_SIZE; j++) + for (i = 0; i < RATE_COUNT; i++) + il4965_rs_rate_scale_clear_win(&lq_sta->lq_info[j]. + win[i]); + + D_RATE("LQ:" "*** rate scale station global init for station %d ***\n", + sta_id); + /* TODO: what is a good starting rate for STA? About middle? Maybe not + * the lowest or the highest rate.. Could consider using RSSI from + * previous packets? Need to have IEEE 802.1X auth succeed immediately + * after assoc.. */ + + lq_sta->is_dup = 0; + lq_sta->max_rate_idx = -1; + lq_sta->missed_rate_counter = IL_MISSED_RATE_MAX; + lq_sta->is_green = il4965_rs_use_green(sta); + lq_sta->active_legacy_rate = il->active_rate & ~(0x1000); + lq_sta->band = il->band; + /* + * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3), + * supp_rates[] does not; shift to convert format, force 9 MBits off. + */ + lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1; + lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1; + lq_sta->active_siso_rate &= ~((u16) 0x2); + lq_sta->active_siso_rate <<= IL_FIRST_OFDM_RATE; + + /* Same here */ + lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1; + lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1; + lq_sta->active_mimo2_rate &= ~((u16) 0x2); + lq_sta->active_mimo2_rate <<= IL_FIRST_OFDM_RATE; + + /* These values will be overridden later */ + lq_sta->lq.general_params.single_stream_ant_msk = + il4965_first_antenna(il->hw_params.valid_tx_ant); + lq_sta->lq.general_params.dual_stream_ant_msk = + il->hw_params.valid_tx_ant & ~il4965_first_antenna(il->hw_params. + valid_tx_ant); + if (!lq_sta->lq.general_params.dual_stream_ant_msk) { + lq_sta->lq.general_params.dual_stream_ant_msk = ANT_AB; + } else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) { + lq_sta->lq.general_params.dual_stream_ant_msk = + il->hw_params.valid_tx_ant; + } + + /* as default allow aggregation for all tids */ + lq_sta->tx_agg_tid_en = IL_AGG_ALL_TID; + lq_sta->drv = il; + + /* Set last_txrate_idx to lowest rate */ + lq_sta->last_txrate_idx = rate_lowest_index(sband, sta); + if (sband->band == IEEE80211_BAND_5GHZ) + lq_sta->last_txrate_idx += IL_FIRST_OFDM_RATE; + lq_sta->is_agg = 0; + +#ifdef CONFIG_MAC80211_DEBUGFS + lq_sta->dbg_fixed_rate = 0; +#endif + + il4965_rs_initialize_lq(il, conf, sta, lq_sta); +} + +static void +il4965_rs_fill_link_cmd(struct il_priv *il, struct il_lq_sta *lq_sta, + u32 new_rate) +{ + struct il_scale_tbl_info tbl_type; + int idx = 0; + int rate_idx; + int repeat_rate = 0; + u8 ant_toggle_cnt = 0; + u8 use_ht_possible = 1; + u8 valid_tx_ant = 0; + struct il_link_quality_cmd *lq_cmd = &lq_sta->lq; + + /* Override starting rate (idx 0) if needed for debug purposes */ + il4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, idx); + + /* Interpret new_rate (rate_n_flags) */ + il4965_rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, &tbl_type, + &rate_idx); + + /* How many times should we repeat the initial rate? */ + if (is_legacy(tbl_type.lq_type)) { + ant_toggle_cnt = 1; + repeat_rate = IL_NUMBER_TRY; + } else { + repeat_rate = IL_HT_NUMBER_TRY; + } + + lq_cmd->general_params.mimo_delimiter = + is_mimo(tbl_type.lq_type) ? 1 : 0; + + /* Fill 1st table entry (idx 0) */ + lq_cmd->rs_table[idx].rate_n_flags = cpu_to_le32(new_rate); + + if (il4965_num_of_ant(tbl_type.ant_type) == 1) { + lq_cmd->general_params.single_stream_ant_msk = + tbl_type.ant_type; + } else if (il4965_num_of_ant(tbl_type.ant_type) == 2) { + lq_cmd->general_params.dual_stream_ant_msk = tbl_type.ant_type; + } + /* otherwise we don't modify the existing value */ + idx++; + repeat_rate--; + if (il) + valid_tx_ant = il->hw_params.valid_tx_ant; + + /* Fill rest of rate table */ + while (idx < LINK_QUAL_MAX_RETRY_NUM) { + /* Repeat initial/next rate. + * For legacy IL_NUMBER_TRY == 1, this loop will not execute. + * For HT IL_HT_NUMBER_TRY == 3, this executes twice. */ + while (repeat_rate > 0 && idx < LINK_QUAL_MAX_RETRY_NUM) { + if (is_legacy(tbl_type.lq_type)) { + if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE) + ant_toggle_cnt++; + else if (il && + il4965_rs_toggle_antenna(valid_tx_ant, + &new_rate, + &tbl_type)) + ant_toggle_cnt = 1; + } + + /* Override next rate if needed for debug purposes */ + il4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, idx); + + /* Fill next table entry */ + lq_cmd->rs_table[idx].rate_n_flags = + cpu_to_le32(new_rate); + repeat_rate--; + idx++; + } + + il4965_rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, + &tbl_type, &rate_idx); + + /* Indicate to uCode which entries might be MIMO. + * If initial rate was MIMO, this will finally end up + * as (IL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */ + if (is_mimo(tbl_type.lq_type)) + lq_cmd->general_params.mimo_delimiter = idx; + + /* Get next rate */ + new_rate = + il4965_rs_get_lower_rate(lq_sta, &tbl_type, rate_idx, + use_ht_possible); + + /* How many times should we repeat the next rate? */ + if (is_legacy(tbl_type.lq_type)) { + if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE) + ant_toggle_cnt++; + else if (il && + il4965_rs_toggle_antenna(valid_tx_ant, + &new_rate, &tbl_type)) + ant_toggle_cnt = 1; + + repeat_rate = IL_NUMBER_TRY; + } else { + repeat_rate = IL_HT_NUMBER_TRY; + } + + /* Don't allow HT rates after next pass. + * il4965_rs_get_lower_rate() will change type to LQ_A or LQ_G. */ + use_ht_possible = 0; + + /* Override next rate if needed for debug purposes */ + il4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, idx); + + /* Fill next table entry */ + lq_cmd->rs_table[idx].rate_n_flags = cpu_to_le32(new_rate); + + idx++; + repeat_rate--; + } + + lq_cmd->agg_params.agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF; + lq_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; + + lq_cmd->agg_params.agg_time_limit = + cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); +} + +static void * +il4965_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) +{ + return hw->priv; +} + +/* rate scale requires free function to be implemented */ +static void +il4965_rs_free(void *il_rate) +{ + return; +} + +static void +il4965_rs_free_sta(void *il_r, struct ieee80211_sta *sta, void *il_sta) +{ + struct il_priv *il __maybe_unused = il_r; + + D_RATE("enter\n"); + D_RATE("leave\n"); +} + +#ifdef CONFIG_MAC80211_DEBUGFS +static int +il4965_open_file_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static void +il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta, u32 * rate_n_flags, int idx) +{ + struct il_priv *il; + u8 valid_tx_ant; + u8 ant_sel_tx; + + il = lq_sta->drv; + valid_tx_ant = il->hw_params.valid_tx_ant; + if (lq_sta->dbg_fixed_rate) { + ant_sel_tx = + ((lq_sta-> + dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK) >> + RATE_MCS_ANT_POS); + if ((valid_tx_ant & ant_sel_tx) == ant_sel_tx) { + *rate_n_flags = lq_sta->dbg_fixed_rate; + D_RATE("Fixed rate ON\n"); + } else { + lq_sta->dbg_fixed_rate = 0; + IL_ERR + ("Invalid antenna selection 0x%X, Valid is 0x%X\n", + ant_sel_tx, valid_tx_ant); + D_RATE("Fixed rate OFF\n"); + } + } else { + D_RATE("Fixed rate OFF\n"); + } +} + +static ssize_t +il4965_rs_sta_dbgfs_scale_table_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_lq_sta *lq_sta = file->private_data; + struct il_priv *il; + char buf[64]; + size_t buf_size; + u32 parsed_rate; + struct il_station_priv *sta_priv = + container_of(lq_sta, struct il_station_priv, lq_sta); + struct il_rxon_context *ctx = sta_priv->common.ctx; + + il = lq_sta->drv; + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + + if (sscanf(buf, "%x", &parsed_rate) == 1) + lq_sta->dbg_fixed_rate = parsed_rate; + else + lq_sta->dbg_fixed_rate = 0; + + lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */ + lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ + lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ + + D_RATE("sta_id %d rate 0x%X\n", lq_sta->lq.sta_id, + lq_sta->dbg_fixed_rate); + + if (lq_sta->dbg_fixed_rate) { + il4965_rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate); + il_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC, false); + } + + return count; +} + +static ssize_t +il4965_rs_sta_dbgfs_scale_table_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + char *buff; + int desc = 0; + int i = 0; + int idx = 0; + ssize_t ret; + + struct il_lq_sta *lq_sta = file->private_data; + struct il_priv *il; + struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); + + il = lq_sta->drv; + buff = kmalloc(1024, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + desc += sprintf(buff + desc, "sta_id %d\n", lq_sta->lq.sta_id); + desc += + sprintf(buff + desc, "failed=%d success=%d rate=0%X\n", + lq_sta->total_failed, lq_sta->total_success, + lq_sta->active_legacy_rate); + desc += + sprintf(buff + desc, "fixed rate 0x%X\n", lq_sta->dbg_fixed_rate); + desc += + sprintf(buff + desc, "valid_tx_ant %s%s%s\n", + (il->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "", + (il->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "", + (il->hw_params.valid_tx_ant & ANT_C) ? "ANT_C" : ""); + desc += + sprintf(buff + desc, "lq type %s\n", + (is_legacy(tbl->lq_type)) ? "legacy" : "HT"); + if (is_Ht(tbl->lq_type)) { + desc += + sprintf(buff + desc, " %s", + (is_siso(tbl->lq_type)) ? "SISO" : "MIMO2"); + desc += + sprintf(buff + desc, " %s", + (tbl->is_ht40) ? "40MHz" : "20MHz"); + desc += + sprintf(buff + desc, " %s %s %s\n", + (tbl->is_SGI) ? "SGI" : "", + (lq_sta->is_green) ? "GF enabled" : "", + (lq_sta->is_agg) ? "AGG on" : ""); + } + desc += + sprintf(buff + desc, "last tx rate=0x%X\n", + lq_sta->last_rate_n_flags); + desc += + sprintf(buff + desc, + "general:" "flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n", + lq_sta->lq.general_params.flags, + lq_sta->lq.general_params.mimo_delimiter, + lq_sta->lq.general_params.single_stream_ant_msk, + lq_sta->lq.general_params.dual_stream_ant_msk); + + desc += + sprintf(buff + desc, + "agg:" + "time_limit=%d dist_start_th=%d frame_cnt_limit=%d\n", + le16_to_cpu(lq_sta->lq.agg_params.agg_time_limit), + lq_sta->lq.agg_params.agg_dis_start_th, + lq_sta->lq.agg_params.agg_frame_cnt_limit); + + desc += + sprintf(buff + desc, + "Start idx [0]=0x%x [1]=0x%x [2]=0x%x [3]=0x%x\n", + lq_sta->lq.general_params.start_rate_idx[0], + lq_sta->lq.general_params.start_rate_idx[1], + lq_sta->lq.general_params.start_rate_idx[2], + lq_sta->lq.general_params.start_rate_idx[3]); + + for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { + idx = + il4965_hwrate_to_plcp_idx(le32_to_cpu + (lq_sta->lq.rs_table[i]. + rate_n_flags)); + if (is_legacy(tbl->lq_type)) { + desc += + sprintf(buff + desc, " rate[%d] 0x%X %smbps\n", i, + le32_to_cpu(lq_sta->lq.rs_table[i]. + rate_n_flags), + il_rate_mcs[idx].mbps); + } else { + desc += + sprintf(buff + desc, " rate[%d] 0x%X %smbps (%s)\n", + i, + le32_to_cpu(lq_sta->lq.rs_table[i]. + rate_n_flags), + il_rate_mcs[idx].mbps, + il_rate_mcs[idx].mcs); + } + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); + kfree(buff); + return ret; +} + +static const struct file_operations rs_sta_dbgfs_scale_table_ops = { + .write = il4965_rs_sta_dbgfs_scale_table_write, + .read = il4965_rs_sta_dbgfs_scale_table_read, + .open = il4965_open_file_generic, + .llseek = default_llseek, +}; + +static ssize_t +il4965_rs_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + char *buff; + int desc = 0; + int i, j; + ssize_t ret; + + struct il_lq_sta *lq_sta = file->private_data; + + buff = kmalloc(1024, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + for (i = 0; i < LQ_SIZE; i++) { + desc += + sprintf(buff + desc, + "%s type=%d SGI=%d HT40=%d DUP=%d GF=%d\n" + "rate=0x%X\n", lq_sta->active_tbl == i ? "*" : "x", + lq_sta->lq_info[i].lq_type, + lq_sta->lq_info[i].is_SGI, + lq_sta->lq_info[i].is_ht40, + lq_sta->lq_info[i].is_dup, lq_sta->is_green, + lq_sta->lq_info[i].current_rate); + for (j = 0; j < RATE_COUNT; j++) { + desc += + sprintf(buff + desc, + "counter=%d success=%d %%=%d\n", + lq_sta->lq_info[i].win[j].counter, + lq_sta->lq_info[i].win[j].success_counter, + lq_sta->lq_info[i].win[j].success_ratio); + } + } + ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); + kfree(buff); + return ret; +} + +static const struct file_operations rs_sta_dbgfs_stats_table_ops = { + .read = il4965_rs_sta_dbgfs_stats_table_read, + .open = il4965_open_file_generic, + .llseek = default_llseek, +}; + +static ssize_t +il4965_rs_sta_dbgfs_rate_scale_data_read(struct file *file, + char __user *user_buf, size_t count, + loff_t *ppos) +{ + char buff[120]; + int desc = 0; + struct il_lq_sta *lq_sta = file->private_data; + struct il_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl]; + + if (is_Ht(tbl->lq_type)) + desc += + sprintf(buff + desc, "Bit Rate= %d Mb/s\n", + tbl->expected_tpt[lq_sta->last_txrate_idx]); + else + desc += + sprintf(buff + desc, "Bit Rate= %d Mb/s\n", + il_rates[lq_sta->last_txrate_idx].ieee >> 1); + + return simple_read_from_buffer(user_buf, count, ppos, buff, desc); +} + +static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = { + .read = il4965_rs_sta_dbgfs_rate_scale_data_read, + .open = il4965_open_file_generic, + .llseek = default_llseek, +}; + +static void +il4965_rs_add_debugfs(void *il, void *il_sta, struct dentry *dir) +{ + struct il_lq_sta *lq_sta = il_sta; + lq_sta->rs_sta_dbgfs_scale_table_file = + debugfs_create_file("rate_scale_table", S_IRUSR | S_IWUSR, dir, + lq_sta, &rs_sta_dbgfs_scale_table_ops); + lq_sta->rs_sta_dbgfs_stats_table_file = + debugfs_create_file("rate_stats_table", S_IRUSR, dir, lq_sta, + &rs_sta_dbgfs_stats_table_ops); + lq_sta->rs_sta_dbgfs_rate_scale_data_file = + debugfs_create_file("rate_scale_data", S_IRUSR, dir, lq_sta, + &rs_sta_dbgfs_rate_scale_data_ops); + lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file = + debugfs_create_u8("tx_agg_tid_enable", S_IRUSR | S_IWUSR, dir, + &lq_sta->tx_agg_tid_en); + +} + +static void +il4965_rs_remove_debugfs(void *il, void *il_sta) +{ + struct il_lq_sta *lq_sta = il_sta; + debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file); + debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); + debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file); + debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file); +} +#endif + +/* + * Initialization of rate scaling information is done by driver after + * the station is added. Since mac80211 calls this function before a + * station is added we ignore it. + */ +static void +il4965_rs_rate_init_stub(void *il_r, struct ieee80211_supported_band *sband, + struct ieee80211_sta *sta, void *il_sta) +{ +} + +static struct rate_control_ops rs_4965_ops = { + .module = NULL, + .name = IL4965_RS_NAME, + .tx_status = il4965_rs_tx_status, + .get_rate = il4965_rs_get_rate, + .rate_init = il4965_rs_rate_init_stub, + .alloc = il4965_rs_alloc, + .free = il4965_rs_free, + .alloc_sta = il4965_rs_alloc_sta, + .free_sta = il4965_rs_free_sta, +#ifdef CONFIG_MAC80211_DEBUGFS + .add_sta_debugfs = il4965_rs_add_debugfs, + .remove_sta_debugfs = il4965_rs_remove_debugfs, +#endif +}; + +int +il4965_rate_control_register(void) +{ + return ieee80211_rate_control_register(&rs_4965_ops); +} + +void +il4965_rate_control_unregister(void) +{ + ieee80211_rate_control_unregister(&rs_4965_ops); +} diff --git a/drivers/net/wireless/iwlegacy/4965.c b/drivers/net/wireless/iwlegacy/4965.c new file mode 100644 index 000000000000..84c54dccf195 --- /dev/null +++ b/drivers/net/wireless/iwlegacy/4965.c @@ -0,0 +1,2421 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/delay.h> +#include <linux/sched.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <net/mac80211.h> +#include <linux/etherdevice.h> +#include <asm/unaligned.h> + +#include "common.h" +#include "4965.h" + +/** + * il_verify_inst_sparse - verify runtime uCode image in card vs. host, + * using sample data 100 bytes apart. If these sample points are good, + * it's a pretty good bet that everything between them is good, too. + */ +static int +il4965_verify_inst_sparse(struct il_priv *il, __le32 * image, u32 len) +{ + u32 val; + int ret = 0; + u32 errcnt = 0; + u32 i; + + D_INFO("ucode inst image size is %u\n", len); + + for (i = 0; i < len; i += 100, image += 100 / sizeof(u32)) { + /* read data comes through single port, auto-incr addr */ + /* NOTE: Use the debugless read so we don't flood kernel log + * if IL_DL_IO is set */ + il_wr(il, HBUS_TARG_MEM_RADDR, i + IL4965_RTC_INST_LOWER_BOUND); + val = _il_rd(il, HBUS_TARG_MEM_RDAT); + if (val != le32_to_cpu(*image)) { + ret = -EIO; + errcnt++; + if (errcnt >= 3) + break; + } + } + + return ret; +} + +/** + * il4965_verify_inst_full - verify runtime uCode image in card vs. host, + * looking at all data. + */ +static int +il4965_verify_inst_full(struct il_priv *il, __le32 * image, u32 len) +{ + u32 val; + u32 save_len = len; + int ret = 0; + u32 errcnt; + + D_INFO("ucode inst image size is %u\n", len); + + il_wr(il, HBUS_TARG_MEM_RADDR, IL4965_RTC_INST_LOWER_BOUND); + + errcnt = 0; + for (; len > 0; len -= sizeof(u32), image++) { + /* read data comes through single port, auto-incr addr */ + /* NOTE: Use the debugless read so we don't flood kernel log + * if IL_DL_IO is set */ + val = _il_rd(il, HBUS_TARG_MEM_RDAT); + if (val != le32_to_cpu(*image)) { + IL_ERR("uCode INST section is invalid at " + "offset 0x%x, is 0x%x, s/b 0x%x\n", + save_len - len, val, le32_to_cpu(*image)); + ret = -EIO; + errcnt++; + if (errcnt >= 20) + break; + } + } + + if (!errcnt) + D_INFO("ucode image in INSTRUCTION memory is good\n"); + + return ret; +} + +/** + * il4965_verify_ucode - determine which instruction image is in SRAM, + * and verify its contents + */ +int +il4965_verify_ucode(struct il_priv *il) +{ + __le32 *image; + u32 len; + int ret; + + /* Try bootstrap */ + image = (__le32 *) il->ucode_boot.v_addr; + len = il->ucode_boot.len; + ret = il4965_verify_inst_sparse(il, image, len); + if (!ret) { + D_INFO("Bootstrap uCode is good in inst SRAM\n"); + return 0; + } + + /* Try initialize */ + image = (__le32 *) il->ucode_init.v_addr; + len = il->ucode_init.len; + ret = il4965_verify_inst_sparse(il, image, len); + if (!ret) { + D_INFO("Initialize uCode is good in inst SRAM\n"); + return 0; + } + + /* Try runtime/protocol */ + image = (__le32 *) il->ucode_code.v_addr; + len = il->ucode_code.len; + ret = il4965_verify_inst_sparse(il, image, len); + if (!ret) { + D_INFO("Runtime uCode is good in inst SRAM\n"); + return 0; + } + + IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); + + /* Since nothing seems to match, show first several data entries in + * instruction SRAM, so maybe visual inspection will give a clue. + * Selection of bootstrap image (vs. other images) is arbitrary. */ + image = (__le32 *) il->ucode_boot.v_addr; + len = il->ucode_boot.len; + ret = il4965_verify_inst_full(il, image, len); + + return ret; +} + +/****************************************************************************** + * + * EEPROM related functions + * +******************************************************************************/ + +/* + * The device's EEPROM semaphore prevents conflicts between driver and uCode + * when accessing the EEPROM; each access is a series of pulses to/from the + * EEPROM chip, not a single event, so even reads could conflict if they + * weren't arbitrated by the semaphore. + */ +int +il4965_eeprom_acquire_semaphore(struct il_priv *il) +{ + u16 count; + int ret; + + for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) { + /* Request semaphore */ + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); + + /* See if we got it */ + ret = + _il_poll_bit(il, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, + EEPROM_SEM_TIMEOUT); + if (ret >= 0) + return ret; + } + + return ret; +} + +void +il4965_eeprom_release_semaphore(struct il_priv *il) +{ + il_clear_bit(il, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); + +} + +int +il4965_eeprom_check_version(struct il_priv *il) +{ + u16 eeprom_ver; + u16 calib_ver; + + eeprom_ver = il_eeprom_query16(il, EEPROM_VERSION); + calib_ver = il_eeprom_query16(il, EEPROM_4965_CALIB_VERSION_OFFSET); + + if (eeprom_ver < il->cfg->eeprom_ver || + calib_ver < il->cfg->eeprom_calib_ver) + goto err; + + IL_INFO("device EEPROM VER=0x%x, CALIB=0x%x\n", eeprom_ver, calib_ver); + + return 0; +err: + IL_ERR("Unsupported (too old) EEPROM VER=0x%x < 0x%x " + "CALIB=0x%x < 0x%x\n", eeprom_ver, il->cfg->eeprom_ver, + calib_ver, il->cfg->eeprom_calib_ver); + return -EINVAL; + +} + +void +il4965_eeprom_get_mac(const struct il_priv *il, u8 * mac) +{ + const u8 *addr = il_eeprom_query_addr(il, + EEPROM_MAC_ADDRESS); + memcpy(mac, addr, ETH_ALEN); +} + +/* Send led command */ +static int +il4965_send_led_cmd(struct il_priv *il, struct il_led_cmd *led_cmd) +{ + struct il_host_cmd cmd = { + .id = C_LEDS, + .len = sizeof(struct il_led_cmd), + .data = led_cmd, + .flags = CMD_ASYNC, + .callback = NULL, + }; + u32 reg; + + reg = _il_rd(il, CSR_LED_REG); + if (reg != (reg & CSR_LED_BSM_CTRL_MSK)) + _il_wr(il, CSR_LED_REG, reg & CSR_LED_BSM_CTRL_MSK); + + return il_send_cmd(il, &cmd); +} + +/* Set led register off */ +void +il4965_led_enable(struct il_priv *il) +{ + _il_wr(il, CSR_LED_REG, CSR_LED_REG_TRUN_ON); +} + +const struct il_led_ops il4965_led_ops = { + .cmd = il4965_send_led_cmd, +}; + +static int il4965_send_tx_power(struct il_priv *il); +static int il4965_hw_get_temperature(struct il_priv *il); + +/* Highest firmware API version supported */ +#define IL4965_UCODE_API_MAX 2 + +/* Lowest firmware API version supported */ +#define IL4965_UCODE_API_MIN 2 + +#define IL4965_FW_PRE "iwlwifi-4965-" +#define _IL4965_MODULE_FIRMWARE(api) IL4965_FW_PRE #api ".ucode" +#define IL4965_MODULE_FIRMWARE(api) _IL4965_MODULE_FIRMWARE(api) + +/* check contents of special bootstrap uCode SRAM */ +static int +il4965_verify_bsm(struct il_priv *il) +{ + __le32 *image = il->ucode_boot.v_addr; + u32 len = il->ucode_boot.len; + u32 reg; + u32 val; + + D_INFO("Begin verify bsm\n"); + + /* verify BSM SRAM contents */ + val = il_rd_prph(il, BSM_WR_DWCOUNT_REG); + for (reg = BSM_SRAM_LOWER_BOUND; reg < BSM_SRAM_LOWER_BOUND + len; + reg += sizeof(u32), image++) { + val = il_rd_prph(il, reg); + if (val != le32_to_cpu(*image)) { + IL_ERR("BSM uCode verification failed at " + "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", + BSM_SRAM_LOWER_BOUND, reg - BSM_SRAM_LOWER_BOUND, + len, val, le32_to_cpu(*image)); + return -EIO; + } + } + + D_INFO("BSM bootstrap uCode image OK\n"); + + return 0; +} + +/** + * il4965_load_bsm - Load bootstrap instructions + * + * BSM operation: + * + * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program + * in special SRAM that does not power down during RFKILL. When powering back + * up after power-saving sleeps (or during initial uCode load), the BSM loads + * the bootstrap program into the on-board processor, and starts it. + * + * The bootstrap program loads (via DMA) instructions and data for a new + * program from host DRAM locations indicated by the host driver in the + * BSM_DRAM_* registers. Once the new program is loaded, it starts + * automatically. + * + * When initializing the NIC, the host driver points the BSM to the + * "initialize" uCode image. This uCode sets up some internal data, then + * notifies host via "initialize alive" that it is complete. + * + * The host then replaces the BSM_DRAM_* pointer values to point to the + * normal runtime uCode instructions and a backup uCode data cache buffer + * (filled initially with starting data values for the on-board processor), + * then triggers the "initialize" uCode to load and launch the runtime uCode, + * which begins normal operation. + * + * When doing a power-save shutdown, runtime uCode saves data SRAM into + * the backup data cache in DRAM before SRAM is powered down. + * + * When powering back up, the BSM loads the bootstrap program. This reloads + * the runtime uCode instructions and the backup data cache into SRAM, + * and re-launches the runtime uCode from where it left off. + */ +static int +il4965_load_bsm(struct il_priv *il) +{ + __le32 *image = il->ucode_boot.v_addr; + u32 len = il->ucode_boot.len; + dma_addr_t pinst; + dma_addr_t pdata; + u32 inst_len; + u32 data_len; + int i; + u32 done; + u32 reg_offset; + int ret; + + D_INFO("Begin load bsm\n"); + + il->ucode_type = UCODE_RT; + + /* make sure bootstrap program is no larger than BSM's SRAM size */ + if (len > IL49_MAX_BSM_SIZE) + return -EINVAL; + + /* Tell bootstrap uCode where to find the "Initialize" uCode + * in host DRAM ... host DRAM physical address bits 35:4 for 4965. + * NOTE: il_init_alive_start() will replace these values, + * after the "initialize" uCode has run, to point to + * runtime/protocol instructions and backup data cache. + */ + pinst = il->ucode_init.p_addr >> 4; + pdata = il->ucode_init_data.p_addr >> 4; + inst_len = il->ucode_init.len; + data_len = il->ucode_init_data.len; + + il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); + il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); + il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); + il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); + + /* Fill BSM memory with bootstrap instructions */ + for (reg_offset = BSM_SRAM_LOWER_BOUND; + reg_offset < BSM_SRAM_LOWER_BOUND + len; + reg_offset += sizeof(u32), image++) + _il_wr_prph(il, reg_offset, le32_to_cpu(*image)); + + ret = il4965_verify_bsm(il); + if (ret) + return ret; + + /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ + il_wr_prph(il, BSM_WR_MEM_SRC_REG, 0x0); + il_wr_prph(il, BSM_WR_MEM_DST_REG, IL49_RTC_INST_LOWER_BOUND); + il_wr_prph(il, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); + + /* Load bootstrap code into instruction SRAM now, + * to prepare to load "initialize" uCode */ + il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START); + + /* Wait for load of bootstrap uCode to finish */ + for (i = 0; i < 100; i++) { + done = il_rd_prph(il, BSM_WR_CTRL_REG); + if (!(done & BSM_WR_CTRL_REG_BIT_START)) + break; + udelay(10); + } + if (i < 100) + D_INFO("BSM write complete, poll %d iterations\n", i); + else { + IL_ERR("BSM write did not complete!\n"); + return -EIO; + } + + /* Enable future boot loads whenever power management unit triggers it + * (e.g. when powering back up after power-save shutdown) */ + il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN); + + return 0; +} + +/** + * il4965_set_ucode_ptrs - Set uCode address location + * + * Tell initialization uCode where to find runtime uCode. + * + * BSM registers initially contain pointers to initialization uCode. + * We need to replace them to load runtime uCode inst and data, + * and to save runtime data when powering down. + */ +static int +il4965_set_ucode_ptrs(struct il_priv *il) +{ + dma_addr_t pinst; + dma_addr_t pdata; + int ret = 0; + + /* bits 35:4 for 4965 */ + pinst = il->ucode_code.p_addr >> 4; + pdata = il->ucode_data_backup.p_addr >> 4; + + /* Tell bootstrap uCode where to find image to load */ + il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); + il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); + il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, il->ucode_data.len); + + /* Inst byte count must be last to set up, bit 31 signals uCode + * that all new ptr/size info is in place */ + il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, + il->ucode_code.len | BSM_DRAM_INST_LOAD); + D_INFO("Runtime uCode pointers are set.\n"); + + return ret; +} + +/** + * il4965_init_alive_start - Called after N_ALIVE notification received + * + * Called after N_ALIVE notification received from "initialize" uCode. + * + * The 4965 "initialize" ALIVE reply contains calibration data for: + * Voltage, temperature, and MIMO tx gain correction, now stored in il + * (3945 does not contain this data). + * + * Tell "initialize" uCode to go ahead and load the runtime uCode. +*/ +static void +il4965_init_alive_start(struct il_priv *il) +{ + /* Bootstrap uCode has loaded initialize uCode ... verify inst image. + * This is a paranoid check, because we would not have gotten the + * "initialize" alive if code weren't properly loaded. */ + if (il4965_verify_ucode(il)) { + /* Runtime instruction load was bad; + * take it all the way back down so we can try again */ + D_INFO("Bad \"initialize\" uCode load.\n"); + goto restart; + } + + /* Calculate temperature */ + il->temperature = il4965_hw_get_temperature(il); + + /* Send pointers to protocol/runtime uCode image ... init code will + * load and launch runtime uCode, which will send us another "Alive" + * notification. */ + D_INFO("Initialization Alive received.\n"); + if (il4965_set_ucode_ptrs(il)) { + /* Runtime instruction load won't happen; + * take it all the way back down so we can try again */ + D_INFO("Couldn't set up uCode pointers.\n"); + goto restart; + } + return; + +restart: + queue_work(il->workqueue, &il->restart); +} + +static bool +iw4965_is_ht40_channel(__le32 rxon_flags) +{ + int chan_mod = + le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK) >> + RXON_FLG_CHANNEL_MODE_POS; + return (chan_mod == CHANNEL_MODE_PURE_40 || + chan_mod == CHANNEL_MODE_MIXED); +} + +static void +il4965_nic_config(struct il_priv *il) +{ + unsigned long flags; + u16 radio_cfg; + + spin_lock_irqsave(&il->lock, flags); + + radio_cfg = il_eeprom_query16(il, EEPROM_RADIO_CONFIG); + + /* write radio config values to register */ + if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX) + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + EEPROM_RF_CFG_TYPE_MSK(radio_cfg) | + EEPROM_RF_CFG_STEP_MSK(radio_cfg) | + EEPROM_RF_CFG_DASH_MSK(radio_cfg)); + + /* set CSR_HW_CONFIG_REG for uCode use */ + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | + CSR_HW_IF_CONFIG_REG_BIT_MAC_SI); + + il->calib_info = + (struct il_eeprom_calib_info *) + il_eeprom_query_addr(il, EEPROM_4965_CALIB_TXPOWER_OFFSET); + + spin_unlock_irqrestore(&il->lock, flags); +} + +/* Reset differential Rx gains in NIC to prepare for chain noise calibration. + * Called after every association, but this runs only once! + * ... once chain noise is calibrated the first time, it's good forever. */ +static void +il4965_chain_noise_reset(struct il_priv *il) +{ + struct il_chain_noise_data *data = &(il->chain_noise_data); + + if (data->state == IL_CHAIN_NOISE_ALIVE && il_is_any_associated(il)) { + struct il_calib_diff_gain_cmd cmd; + + /* clear data for chain noise calibration algorithm */ + data->chain_noise_a = 0; + data->chain_noise_b = 0; + data->chain_noise_c = 0; + data->chain_signal_a = 0; + data->chain_signal_b = 0; + data->chain_signal_c = 0; + data->beacon_count = 0; + + memset(&cmd, 0, sizeof(cmd)); + cmd.hdr.op_code = IL_PHY_CALIBRATE_DIFF_GAIN_CMD; + cmd.diff_gain_a = 0; + cmd.diff_gain_b = 0; + cmd.diff_gain_c = 0; + if (il_send_cmd_pdu(il, C_PHY_CALIBRATION, sizeof(cmd), &cmd)) + IL_ERR("Could not send C_PHY_CALIBRATION\n"); + data->state = IL_CHAIN_NOISE_ACCUMULATE; + D_CALIB("Run chain_noise_calibrate\n"); + } +} + +static struct il_sensitivity_ranges il4965_sensitivity = { + .min_nrg_cck = 97, + .max_nrg_cck = 0, /* not used, set to 0 */ + + .auto_corr_min_ofdm = 85, + .auto_corr_min_ofdm_mrc = 170, + .auto_corr_min_ofdm_x1 = 105, + .auto_corr_min_ofdm_mrc_x1 = 220, + + .auto_corr_max_ofdm = 120, + .auto_corr_max_ofdm_mrc = 210, + .auto_corr_max_ofdm_x1 = 140, + .auto_corr_max_ofdm_mrc_x1 = 270, + + .auto_corr_min_cck = 125, + .auto_corr_max_cck = 200, + .auto_corr_min_cck_mrc = 200, + .auto_corr_max_cck_mrc = 400, + + .nrg_th_cck = 100, + .nrg_th_ofdm = 100, + + .barker_corr_th_min = 190, + .barker_corr_th_min_mrc = 390, + .nrg_th_cca = 62, +}; + +static void +il4965_set_ct_threshold(struct il_priv *il) +{ + /* want Kelvin */ + il->hw_params.ct_kill_threshold = + CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY); +} + +/** + * il4965_hw_set_hw_params + * + * Called when initializing driver + */ +static int +il4965_hw_set_hw_params(struct il_priv *il) +{ + if (il->cfg->mod_params->num_of_queues >= IL_MIN_NUM_QUEUES && + il->cfg->mod_params->num_of_queues <= IL49_NUM_QUEUES) + il->cfg->base_params->num_of_queues = + il->cfg->mod_params->num_of_queues; + + il->hw_params.max_txq_num = il->cfg->base_params->num_of_queues; + il->hw_params.dma_chnl_num = FH49_TCSR_CHNL_NUM; + il->hw_params.scd_bc_tbls_size = + il->cfg->base_params->num_of_queues * + sizeof(struct il4965_scd_bc_tbl); + il->hw_params.tfd_size = sizeof(struct il_tfd); + il->hw_params.max_stations = IL4965_STATION_COUNT; + il->ctx.bcast_sta_id = IL4965_BROADCAST_ID; + il->hw_params.max_data_size = IL49_RTC_DATA_SIZE; + il->hw_params.max_inst_size = IL49_RTC_INST_SIZE; + il->hw_params.max_bsm_size = BSM_SRAM_SIZE; + il->hw_params.ht40_channel = BIT(IEEE80211_BAND_5GHZ); + + il->hw_params.rx_wrt_ptr_reg = FH49_RSCSR_CHNL0_WPTR; + + il->hw_params.tx_chains_num = il4965_num_of_ant(il->cfg->valid_tx_ant); + il->hw_params.rx_chains_num = il4965_num_of_ant(il->cfg->valid_rx_ant); + il->hw_params.valid_tx_ant = il->cfg->valid_tx_ant; + il->hw_params.valid_rx_ant = il->cfg->valid_rx_ant; + + il4965_set_ct_threshold(il); + + il->hw_params.sens = &il4965_sensitivity; + il->hw_params.beacon_time_tsf_bits = IL4965_EXT_BEACON_TIME_POS; + + return 0; +} + +static s32 +il4965_math_div_round(s32 num, s32 denom, s32 * res) +{ + s32 sign = 1; + + if (num < 0) { + sign = -sign; + num = -num; + } + if (denom < 0) { + sign = -sign; + denom = -denom; + } + *res = 1; + *res = ((num * 2 + denom) / (denom * 2)) * sign; + + return 1; +} + +/** + * il4965_get_voltage_compensation - Power supply voltage comp for txpower + * + * Determines power supply voltage compensation for txpower calculations. + * Returns number of 1/2-dB steps to subtract from gain table idx, + * to compensate for difference between power supply voltage during + * factory measurements, vs. current power supply voltage. + * + * Voltage indication is higher for lower voltage. + * Lower voltage requires more gain (lower gain table idx). + */ +static s32 +il4965_get_voltage_compensation(s32 eeprom_voltage, s32 current_voltage) +{ + s32 comp = 0; + + if (TX_POWER_IL_ILLEGAL_VOLTAGE == eeprom_voltage || + TX_POWER_IL_ILLEGAL_VOLTAGE == current_voltage) + return 0; + + il4965_math_div_round(current_voltage - eeprom_voltage, + TX_POWER_IL_VOLTAGE_CODES_PER_03V, &comp); + + if (current_voltage > eeprom_voltage) + comp *= 2; + if ((comp < -2) || (comp > 2)) + comp = 0; + + return comp; +} + +static s32 +il4965_get_tx_atten_grp(u16 channel) +{ + if (channel >= CALIB_IL_TX_ATTEN_GR5_FCH && + channel <= CALIB_IL_TX_ATTEN_GR5_LCH) + return CALIB_CH_GROUP_5; + + if (channel >= CALIB_IL_TX_ATTEN_GR1_FCH && + channel <= CALIB_IL_TX_ATTEN_GR1_LCH) + return CALIB_CH_GROUP_1; + + if (channel >= CALIB_IL_TX_ATTEN_GR2_FCH && + channel <= CALIB_IL_TX_ATTEN_GR2_LCH) + return CALIB_CH_GROUP_2; + + if (channel >= CALIB_IL_TX_ATTEN_GR3_FCH && + channel <= CALIB_IL_TX_ATTEN_GR3_LCH) + return CALIB_CH_GROUP_3; + + if (channel >= CALIB_IL_TX_ATTEN_GR4_FCH && + channel <= CALIB_IL_TX_ATTEN_GR4_LCH) + return CALIB_CH_GROUP_4; + + return -EINVAL; +} + +static u32 +il4965_get_sub_band(const struct il_priv *il, u32 channel) +{ + s32 b = -1; + + for (b = 0; b < EEPROM_TX_POWER_BANDS; b++) { + if (il->calib_info->band_info[b].ch_from == 0) + continue; + + if (channel >= il->calib_info->band_info[b].ch_from && + channel <= il->calib_info->band_info[b].ch_to) + break; + } + + return b; +} + +static s32 +il4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2) +{ + s32 val; + + if (x2 == x1) + return y1; + else { + il4965_math_div_round((x2 - x) * (y1 - y2), (x2 - x1), &val); + return val + y2; + } +} + +/** + * il4965_interpolate_chan - Interpolate factory measurements for one channel + * + * Interpolates factory measurements from the two sample channels within a + * sub-band, to apply to channel of interest. Interpolation is proportional to + * differences in channel frequencies, which is proportional to differences + * in channel number. + */ +static int +il4965_interpolate_chan(struct il_priv *il, u32 channel, + struct il_eeprom_calib_ch_info *chan_info) +{ + s32 s = -1; + u32 c; + u32 m; + const struct il_eeprom_calib_measure *m1; + const struct il_eeprom_calib_measure *m2; + struct il_eeprom_calib_measure *omeas; + u32 ch_i1; + u32 ch_i2; + + s = il4965_get_sub_band(il, channel); + if (s >= EEPROM_TX_POWER_BANDS) { + IL_ERR("Tx Power can not find channel %d\n", channel); + return -1; + } + + ch_i1 = il->calib_info->band_info[s].ch1.ch_num; + ch_i2 = il->calib_info->band_info[s].ch2.ch_num; + chan_info->ch_num = (u8) channel; + + D_TXPOWER("channel %d subband %d factory cal ch %d & %d\n", channel, s, + ch_i1, ch_i2); + + for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) { + for (m = 0; m < EEPROM_TX_POWER_MEASUREMENTS; m++) { + m1 = &(il->calib_info->band_info[s].ch1. + measurements[c][m]); + m2 = &(il->calib_info->band_info[s].ch2. + measurements[c][m]); + omeas = &(chan_info->measurements[c][m]); + + omeas->actual_pow = + (u8) il4965_interpolate_value(channel, ch_i1, + m1->actual_pow, ch_i2, + m2->actual_pow); + omeas->gain_idx = + (u8) il4965_interpolate_value(channel, ch_i1, + m1->gain_idx, ch_i2, + m2->gain_idx); + omeas->temperature = + (u8) il4965_interpolate_value(channel, ch_i1, + m1->temperature, + ch_i2, + m2->temperature); + omeas->pa_det = + (s8) il4965_interpolate_value(channel, ch_i1, + m1->pa_det, ch_i2, + m2->pa_det); + + D_TXPOWER("chain %d meas %d AP1=%d AP2=%d AP=%d\n", c, + m, m1->actual_pow, m2->actual_pow, + omeas->actual_pow); + D_TXPOWER("chain %d meas %d NI1=%d NI2=%d NI=%d\n", c, + m, m1->gain_idx, m2->gain_idx, + omeas->gain_idx); + D_TXPOWER("chain %d meas %d PA1=%d PA2=%d PA=%d\n", c, + m, m1->pa_det, m2->pa_det, omeas->pa_det); + D_TXPOWER("chain %d meas %d T1=%d T2=%d T=%d\n", c, + m, m1->temperature, m2->temperature, + omeas->temperature); + } + } + + return 0; +} + +/* bit-rate-dependent table to prevent Tx distortion, in half-dB units, + * for OFDM 6, 12, 18, 24, 36, 48, 54, 60 MBit, and CCK all rates. */ +static s32 back_off_table[] = { + 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 20 MHz */ + 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 20 MHz */ + 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 40 MHz */ + 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 40 MHz */ + 10 /* CCK */ +}; + +/* Thermal compensation values for txpower for various frequency ranges ... + * ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */ +static struct il4965_txpower_comp_entry { + s32 degrees_per_05db_a; + s32 degrees_per_05db_a_denom; +} tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = { + { + 9, 2}, /* group 0 5.2, ch 34-43 */ + { + 4, 1}, /* group 1 5.2, ch 44-70 */ + { + 4, 1}, /* group 2 5.2, ch 71-124 */ + { + 4, 1}, /* group 3 5.2, ch 125-200 */ + { + 3, 1} /* group 4 2.4, ch all */ +}; + +static s32 +get_min_power_idx(s32 rate_power_idx, u32 band) +{ + if (!band) { + if ((rate_power_idx & 7) <= 4) + return MIN_TX_GAIN_IDX_52GHZ_EXT; + } + return MIN_TX_GAIN_IDX; +} + +struct gain_entry { + u8 dsp; + u8 radio; +}; + +static const struct gain_entry gain_table[2][108] = { + /* 5.2GHz power gain idx table */ + { + {123, 0x3F}, /* highest txpower */ + {117, 0x3F}, + {110, 0x3F}, + {104, 0x3F}, + {98, 0x3F}, + {110, 0x3E}, + {104, 0x3E}, + {98, 0x3E}, + {110, 0x3D}, + {104, 0x3D}, + {98, 0x3D}, + {110, 0x3C}, + {104, 0x3C}, + {98, 0x3C}, + {110, 0x3B}, + {104, 0x3B}, + {98, 0x3B}, + {110, 0x3A}, + {104, 0x3A}, + {98, 0x3A}, + {110, 0x39}, + {104, 0x39}, + {98, 0x39}, + {110, 0x38}, + {104, 0x38}, + {98, 0x38}, + {110, 0x37}, + {104, 0x37}, + {98, 0x37}, + {110, 0x36}, + {104, 0x36}, + {98, 0x36}, + {110, 0x35}, + {104, 0x35}, + {98, 0x35}, + {110, 0x34}, + {104, 0x34}, + {98, 0x34}, + {110, 0x33}, + {104, 0x33}, + {98, 0x33}, + {110, 0x32}, + {104, 0x32}, + {98, 0x32}, + {110, 0x31}, + {104, 0x31}, + {98, 0x31}, + {110, 0x30}, + {104, 0x30}, + {98, 0x30}, + {110, 0x25}, + {104, 0x25}, + {98, 0x25}, + {110, 0x24}, + {104, 0x24}, + {98, 0x24}, + {110, 0x23}, + {104, 0x23}, + {98, 0x23}, + {110, 0x22}, + {104, 0x18}, + {98, 0x18}, + {110, 0x17}, + {104, 0x17}, + {98, 0x17}, + {110, 0x16}, + {104, 0x16}, + {98, 0x16}, + {110, 0x15}, + {104, 0x15}, + {98, 0x15}, + {110, 0x14}, + {104, 0x14}, + {98, 0x14}, + {110, 0x13}, + {104, 0x13}, + {98, 0x13}, + {110, 0x12}, + {104, 0x08}, + {98, 0x08}, + {110, 0x07}, + {104, 0x07}, + {98, 0x07}, + {110, 0x06}, + {104, 0x06}, + {98, 0x06}, + {110, 0x05}, + {104, 0x05}, + {98, 0x05}, + {110, 0x04}, + {104, 0x04}, + {98, 0x04}, + {110, 0x03}, + {104, 0x03}, + {98, 0x03}, + {110, 0x02}, + {104, 0x02}, + {98, 0x02}, + {110, 0x01}, + {104, 0x01}, + {98, 0x01}, + {110, 0x00}, + {104, 0x00}, + {98, 0x00}, + {93, 0x00}, + {88, 0x00}, + {83, 0x00}, + {78, 0x00}, + }, + /* 2.4GHz power gain idx table */ + { + {110, 0x3f}, /* highest txpower */ + {104, 0x3f}, + {98, 0x3f}, + {110, 0x3e}, + {104, 0x3e}, + {98, 0x3e}, + {110, 0x3d}, + {104, 0x3d}, + {98, 0x3d}, + {110, 0x3c}, + {104, 0x3c}, + {98, 0x3c}, + {110, 0x3b}, + {104, 0x3b}, + {98, 0x3b}, + {110, 0x3a}, + {104, 0x3a}, + {98, 0x3a}, + {110, 0x39}, + {104, 0x39}, + {98, 0x39}, + {110, 0x38}, + {104, 0x38}, + {98, 0x38}, + {110, 0x37}, + {104, 0x37}, + {98, 0x37}, + {110, 0x36}, + {104, 0x36}, + {98, 0x36}, + {110, 0x35}, + {104, 0x35}, + {98, 0x35}, + {110, 0x34}, + {104, 0x34}, + {98, 0x34}, + {110, 0x33}, + {104, 0x33}, + {98, 0x33}, + {110, 0x32}, + {104, 0x32}, + {98, 0x32}, + {110, 0x31}, + {104, 0x31}, + {98, 0x31}, + {110, 0x30}, + {104, 0x30}, + {98, 0x30}, + {110, 0x6}, + {104, 0x6}, + {98, 0x6}, + {110, 0x5}, + {104, 0x5}, + {98, 0x5}, + {110, 0x4}, + {104, 0x4}, + {98, 0x4}, + {110, 0x3}, + {104, 0x3}, + {98, 0x3}, + {110, 0x2}, + {104, 0x2}, + {98, 0x2}, + {110, 0x1}, + {104, 0x1}, + {98, 0x1}, + {110, 0x0}, + {104, 0x0}, + {98, 0x0}, + {97, 0}, + {96, 0}, + {95, 0}, + {94, 0}, + {93, 0}, + {92, 0}, + {91, 0}, + {90, 0}, + {89, 0}, + {88, 0}, + {87, 0}, + {86, 0}, + {85, 0}, + {84, 0}, + {83, 0}, + {82, 0}, + {81, 0}, + {80, 0}, + {79, 0}, + {78, 0}, + {77, 0}, + {76, 0}, + {75, 0}, + {74, 0}, + {73, 0}, + {72, 0}, + {71, 0}, + {70, 0}, + {69, 0}, + {68, 0}, + {67, 0}, + {66, 0}, + {65, 0}, + {64, 0}, + {63, 0}, + {62, 0}, + {61, 0}, + {60, 0}, + {59, 0}, + } +}; + +static int +il4965_fill_txpower_tbl(struct il_priv *il, u8 band, u16 channel, u8 is_ht40, + u8 ctrl_chan_high, + struct il4965_tx_power_db *tx_power_tbl) +{ + u8 saturation_power; + s32 target_power; + s32 user_target_power; + s32 power_limit; + s32 current_temp; + s32 reg_limit; + s32 current_regulatory; + s32 txatten_grp = CALIB_CH_GROUP_MAX; + int i; + int c; + const struct il_channel_info *ch_info = NULL; + struct il_eeprom_calib_ch_info ch_eeprom_info; + const struct il_eeprom_calib_measure *measurement; + s16 voltage; + s32 init_voltage; + s32 voltage_compensation; + s32 degrees_per_05db_num; + s32 degrees_per_05db_denom; + s32 factory_temp; + s32 temperature_comp[2]; + s32 factory_gain_idx[2]; + s32 factory_actual_pwr[2]; + s32 power_idx; + + /* tx_power_user_lmt is in dBm, convert to half-dBm (half-dB units + * are used for idxing into txpower table) */ + user_target_power = 2 * il->tx_power_user_lmt; + + /* Get current (RXON) channel, band, width */ + D_TXPOWER("chan %d band %d is_ht40 %d\n", channel, band, is_ht40); + + ch_info = il_get_channel_info(il, il->band, channel); + + if (!il_is_channel_valid(ch_info)) + return -EINVAL; + + /* get txatten group, used to select 1) thermal txpower adjustment + * and 2) mimo txpower balance between Tx chains. */ + txatten_grp = il4965_get_tx_atten_grp(channel); + if (txatten_grp < 0) { + IL_ERR("Can't find txatten group for channel %d.\n", channel); + return txatten_grp; + } + + D_TXPOWER("channel %d belongs to txatten group %d\n", channel, + txatten_grp); + + if (is_ht40) { + if (ctrl_chan_high) + channel -= 2; + else + channel += 2; + } + + /* hardware txpower limits ... + * saturation (clipping distortion) txpowers are in half-dBm */ + if (band) + saturation_power = il->calib_info->saturation_power24; + else + saturation_power = il->calib_info->saturation_power52; + + if (saturation_power < IL_TX_POWER_SATURATION_MIN || + saturation_power > IL_TX_POWER_SATURATION_MAX) { + if (band) + saturation_power = IL_TX_POWER_DEFAULT_SATURATION_24; + else + saturation_power = IL_TX_POWER_DEFAULT_SATURATION_52; + } + + /* regulatory txpower limits ... reg_limit values are in half-dBm, + * max_power_avg values are in dBm, convert * 2 */ + if (is_ht40) + reg_limit = ch_info->ht40_max_power_avg * 2; + else + reg_limit = ch_info->max_power_avg * 2; + + if ((reg_limit < IL_TX_POWER_REGULATORY_MIN) || + (reg_limit > IL_TX_POWER_REGULATORY_MAX)) { + if (band) + reg_limit = IL_TX_POWER_DEFAULT_REGULATORY_24; + else + reg_limit = IL_TX_POWER_DEFAULT_REGULATORY_52; + } + + /* Interpolate txpower calibration values for this channel, + * based on factory calibration tests on spaced channels. */ + il4965_interpolate_chan(il, channel, &ch_eeprom_info); + + /* calculate tx gain adjustment based on power supply voltage */ + voltage = le16_to_cpu(il->calib_info->voltage); + init_voltage = (s32) le32_to_cpu(il->card_alive_init.voltage); + voltage_compensation = + il4965_get_voltage_compensation(voltage, init_voltage); + + D_TXPOWER("curr volt %d eeprom volt %d volt comp %d\n", init_voltage, + voltage, voltage_compensation); + + /* get current temperature (Celsius) */ + current_temp = max(il->temperature, IL_TX_POWER_TEMPERATURE_MIN); + current_temp = min(il->temperature, IL_TX_POWER_TEMPERATURE_MAX); + current_temp = KELVIN_TO_CELSIUS(current_temp); + + /* select thermal txpower adjustment params, based on channel group + * (same frequency group used for mimo txatten adjustment) */ + degrees_per_05db_num = + tx_power_cmp_tble[txatten_grp].degrees_per_05db_a; + degrees_per_05db_denom = + tx_power_cmp_tble[txatten_grp].degrees_per_05db_a_denom; + + /* get per-chain txpower values from factory measurements */ + for (c = 0; c < 2; c++) { + measurement = &ch_eeprom_info.measurements[c][1]; + + /* txgain adjustment (in half-dB steps) based on difference + * between factory and current temperature */ + factory_temp = measurement->temperature; + il4965_math_div_round((current_temp - + factory_temp) * degrees_per_05db_denom, + degrees_per_05db_num, + &temperature_comp[c]); + + factory_gain_idx[c] = measurement->gain_idx; + factory_actual_pwr[c] = measurement->actual_pow; + + D_TXPOWER("chain = %d\n", c); + D_TXPOWER("fctry tmp %d, " "curr tmp %d, comp %d steps\n", + factory_temp, current_temp, temperature_comp[c]); + + D_TXPOWER("fctry idx %d, fctry pwr %d\n", factory_gain_idx[c], + factory_actual_pwr[c]); + } + + /* for each of 33 bit-rates (including 1 for CCK) */ + for (i = 0; i < POWER_TBL_NUM_ENTRIES; i++) { + u8 is_mimo_rate; + union il4965_tx_power_dual_stream tx_power; + + /* for mimo, reduce each chain's txpower by half + * (3dB, 6 steps), so total output power is regulatory + * compliant. */ + if (i & 0x8) { + current_regulatory = + reg_limit - + IL_TX_POWER_MIMO_REGULATORY_COMPENSATION; + is_mimo_rate = 1; + } else { + current_regulatory = reg_limit; + is_mimo_rate = 0; + } + + /* find txpower limit, either hardware or regulatory */ + power_limit = saturation_power - back_off_table[i]; + if (power_limit > current_regulatory) + power_limit = current_regulatory; + + /* reduce user's txpower request if necessary + * for this rate on this channel */ + target_power = user_target_power; + if (target_power > power_limit) + target_power = power_limit; + + D_TXPOWER("rate %d sat %d reg %d usr %d tgt %d\n", i, + saturation_power - back_off_table[i], + current_regulatory, user_target_power, target_power); + + /* for each of 2 Tx chains (radio transmitters) */ + for (c = 0; c < 2; c++) { + s32 atten_value; + + if (is_mimo_rate) + atten_value = + (s32) le32_to_cpu(il->card_alive_init. + tx_atten[txatten_grp][c]); + else + atten_value = 0; + + /* calculate idx; higher idx means lower txpower */ + power_idx = + (u8) (factory_gain_idx[c] - + (target_power - factory_actual_pwr[c]) - + temperature_comp[c] - voltage_compensation + + atten_value); + +/* D_TXPOWER("calculated txpower idx %d\n", + power_idx); */ + + if (power_idx < get_min_power_idx(i, band)) + power_idx = get_min_power_idx(i, band); + + /* adjust 5 GHz idx to support negative idxes */ + if (!band) + power_idx += 9; + + /* CCK, rate 32, reduce txpower for CCK */ + if (i == POWER_TBL_CCK_ENTRY) + power_idx += + IL_TX_POWER_CCK_COMPENSATION_C_STEP; + + /* stay within the table! */ + if (power_idx > 107) { + IL_WARN("txpower idx %d > 107\n", power_idx); + power_idx = 107; + } + if (power_idx < 0) { + IL_WARN("txpower idx %d < 0\n", power_idx); + power_idx = 0; + } + + /* fill txpower command for this rate/chain */ + tx_power.s.radio_tx_gain[c] = + gain_table[band][power_idx].radio; + tx_power.s.dsp_predis_atten[c] = + gain_table[band][power_idx].dsp; + + D_TXPOWER("chain %d mimo %d idx %d " + "gain 0x%02x dsp %d\n", c, atten_value, + power_idx, tx_power.s.radio_tx_gain[c], + tx_power.s.dsp_predis_atten[c]); + } /* for each chain */ + + tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw); + + } /* for each rate */ + + return 0; +} + +/** + * il4965_send_tx_power - Configure the TXPOWER level user limit + * + * Uses the active RXON for channel, band, and characteristics (ht40, high) + * The power limit is taken from il->tx_power_user_lmt. + */ +static int +il4965_send_tx_power(struct il_priv *il) +{ + struct il4965_txpowertable_cmd cmd = { 0 }; + int ret; + u8 band = 0; + bool is_ht40 = false; + u8 ctrl_chan_high = 0; + struct il_rxon_context *ctx = &il->ctx; + + if (WARN_ONCE + (test_bit(S_SCAN_HW, &il->status), + "TX Power requested while scanning!\n")) + return -EAGAIN; + + band = il->band == IEEE80211_BAND_2GHZ; + + is_ht40 = iw4965_is_ht40_channel(ctx->active.flags); + + if (is_ht40 && (ctx->active.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK)) + ctrl_chan_high = 1; + + cmd.band = band; + cmd.channel = ctx->active.channel; + + ret = + il4965_fill_txpower_tbl(il, band, le16_to_cpu(ctx->active.channel), + is_ht40, ctrl_chan_high, &cmd.tx_power); + if (ret) + goto out; + + ret = il_send_cmd_pdu(il, C_TX_PWR_TBL, sizeof(cmd), &cmd); + +out: + return ret; +} + +static int +il4965_send_rxon_assoc(struct il_priv *il, struct il_rxon_context *ctx) +{ + int ret = 0; + struct il4965_rxon_assoc_cmd rxon_assoc; + const struct il_rxon_cmd *rxon1 = &ctx->staging; + const struct il_rxon_cmd *rxon2 = &ctx->active; + + if (rxon1->flags == rxon2->flags && + rxon1->filter_flags == rxon2->filter_flags && + rxon1->cck_basic_rates == rxon2->cck_basic_rates && + rxon1->ofdm_ht_single_stream_basic_rates == + rxon2->ofdm_ht_single_stream_basic_rates && + rxon1->ofdm_ht_dual_stream_basic_rates == + rxon2->ofdm_ht_dual_stream_basic_rates && + rxon1->rx_chain == rxon2->rx_chain && + rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates) { + D_INFO("Using current RXON_ASSOC. Not resending.\n"); + return 0; + } + + rxon_assoc.flags = ctx->staging.flags; + rxon_assoc.filter_flags = ctx->staging.filter_flags; + rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates; + rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates; + rxon_assoc.reserved = 0; + rxon_assoc.ofdm_ht_single_stream_basic_rates = + ctx->staging.ofdm_ht_single_stream_basic_rates; + rxon_assoc.ofdm_ht_dual_stream_basic_rates = + ctx->staging.ofdm_ht_dual_stream_basic_rates; + rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain; + + ret = + il_send_cmd_pdu_async(il, C_RXON_ASSOC, sizeof(rxon_assoc), + &rxon_assoc, NULL); + + return ret; +} + +static int +il4965_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx) +{ + /* cast away the const for active_rxon in this function */ + struct il_rxon_cmd *active_rxon = (void *)&ctx->active; + int ret; + bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK); + + if (!il_is_alive(il)) + return -EBUSY; + + if (!ctx->is_active) + return 0; + + /* always get timestamp with Rx frame */ + ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK; + + ret = il_check_rxon_cmd(il, ctx); + if (ret) { + IL_ERR("Invalid RXON configuration. Not committing.\n"); + return -EINVAL; + } + + /* + * receive commit_rxon request + * abort any previous channel switch if still in process + */ + if (test_bit(S_CHANNEL_SWITCH_PENDING, &il->status) && + il->switch_channel != ctx->staging.channel) { + D_11H("abort channel switch on %d\n", + le16_to_cpu(il->switch_channel)); + il_chswitch_done(il, false); + } + + /* If we don't need to send a full RXON, we can use + * il_rxon_assoc_cmd which is used to reconfigure filter + * and other flags for the current radio configuration. */ + if (!il_full_rxon_required(il, ctx)) { + ret = il_send_rxon_assoc(il, ctx); + if (ret) { + IL_ERR("Error setting RXON_ASSOC (%d)\n", ret); + return ret; + } + + memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon)); + il_print_rx_config_cmd(il, ctx); + /* + * We do not commit tx power settings while channel changing, + * do it now if tx power changed. + */ + il_set_tx_power(il, il->tx_power_next, false); + return 0; + } + + /* If we are currently associated and the new config requires + * an RXON_ASSOC and the new config wants the associated mask enabled, + * we must clear the associated from the active configuration + * before we apply the new config */ + if (il_is_associated_ctx(ctx) && new_assoc) { + D_INFO("Toggling associated bit on current RXON\n"); + active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; + + ret = + il_send_cmd_pdu(il, ctx->rxon_cmd, + sizeof(struct il_rxon_cmd), active_rxon); + + /* If the mask clearing failed then we set + * active_rxon back to what it was previously */ + if (ret) { + active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; + IL_ERR("Error clearing ASSOC_MSK (%d)\n", ret); + return ret; + } + il_clear_ucode_stations(il, ctx); + il_restore_stations(il, ctx); + ret = il4965_restore_default_wep_keys(il, ctx); + if (ret) { + IL_ERR("Failed to restore WEP keys (%d)\n", ret); + return ret; + } + } + + D_INFO("Sending RXON\n" "* with%s RXON_FILTER_ASSOC_MSK\n" + "* channel = %d\n" "* bssid = %pM\n", (new_assoc ? "" : "out"), + le16_to_cpu(ctx->staging.channel), ctx->staging.bssid_addr); + + il_set_rxon_hwcrypto(il, ctx, !il->cfg->mod_params->sw_crypto); + + /* Apply the new configuration + * RXON unassoc clears the station table in uCode so restoration of + * stations is needed after it (the RXON command) completes + */ + if (!new_assoc) { + ret = + il_send_cmd_pdu(il, ctx->rxon_cmd, + sizeof(struct il_rxon_cmd), &ctx->staging); + if (ret) { + IL_ERR("Error setting new RXON (%d)\n", ret); + return ret; + } + D_INFO("Return from !new_assoc RXON.\n"); + memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon)); + il_clear_ucode_stations(il, ctx); + il_restore_stations(il, ctx); + ret = il4965_restore_default_wep_keys(il, ctx); + if (ret) { + IL_ERR("Failed to restore WEP keys (%d)\n", ret); + return ret; + } + } + if (new_assoc) { + il->start_calib = 0; + /* Apply the new configuration + * RXON assoc doesn't clear the station table in uCode, + */ + ret = + il_send_cmd_pdu(il, ctx->rxon_cmd, + sizeof(struct il_rxon_cmd), &ctx->staging); + if (ret) { + IL_ERR("Error setting new RXON (%d)\n", ret); + return ret; + } + memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon)); + } + il_print_rx_config_cmd(il, ctx); + + il4965_init_sensitivity(il); + + /* If we issue a new RXON command which required a tune then we must + * send a new TXPOWER command or we won't be able to Tx any frames */ + ret = il_set_tx_power(il, il->tx_power_next, true); + if (ret) { + IL_ERR("Error sending TX power (%d)\n", ret); + return ret; + } + + return 0; +} + +static int +il4965_hw_channel_switch(struct il_priv *il, + struct ieee80211_channel_switch *ch_switch) +{ + struct il_rxon_context *ctx = &il->ctx; + int rc; + u8 band = 0; + bool is_ht40 = false; + u8 ctrl_chan_high = 0; + struct il4965_channel_switch_cmd cmd; + const struct il_channel_info *ch_info; + u32 switch_time_in_usec, ucode_switch_time; + u16 ch; + u32 tsf_low; + u8 switch_count; + u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval); + struct ieee80211_vif *vif = ctx->vif; + band = il->band == IEEE80211_BAND_2GHZ; + + is_ht40 = iw4965_is_ht40_channel(ctx->staging.flags); + + if (is_ht40 && (ctx->staging.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK)) + ctrl_chan_high = 1; + + cmd.band = band; + cmd.expect_beacon = 0; + ch = ch_switch->channel->hw_value; + cmd.channel = cpu_to_le16(ch); + cmd.rxon_flags = ctx->staging.flags; + cmd.rxon_filter_flags = ctx->staging.filter_flags; + switch_count = ch_switch->count; + tsf_low = ch_switch->timestamp & 0x0ffffffff; + /* + * calculate the ucode channel switch time + * adding TSF as one of the factor for when to switch + */ + if (il->ucode_beacon_time > tsf_low && beacon_interval) { + if (switch_count > + ((il->ucode_beacon_time - tsf_low) / beacon_interval)) { + switch_count -= + (il->ucode_beacon_time - tsf_low) / beacon_interval; + } else + switch_count = 0; + } + if (switch_count <= 1) + cmd.switch_time = cpu_to_le32(il->ucode_beacon_time); + else { + switch_time_in_usec = + vif->bss_conf.beacon_int * switch_count * TIME_UNIT; + ucode_switch_time = + il_usecs_to_beacons(il, switch_time_in_usec, + beacon_interval); + cmd.switch_time = + il_add_beacon_time(il, il->ucode_beacon_time, + ucode_switch_time, beacon_interval); + } + D_11H("uCode time for the switch is 0x%x\n", cmd.switch_time); + ch_info = il_get_channel_info(il, il->band, ch); + if (ch_info) + cmd.expect_beacon = il_is_channel_radar(ch_info); + else { + IL_ERR("invalid channel switch from %u to %u\n", + ctx->active.channel, ch); + return -EFAULT; + } + + rc = il4965_fill_txpower_tbl(il, band, ch, is_ht40, ctrl_chan_high, + &cmd.tx_power); + if (rc) { + D_11H("error:%d fill txpower_tbl\n", rc); + return rc; + } + + return il_send_cmd_pdu(il, C_CHANNEL_SWITCH, sizeof(cmd), &cmd); +} + +/** + * il4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array + */ +static void +il4965_txq_update_byte_cnt_tbl(struct il_priv *il, struct il_tx_queue *txq, + u16 byte_cnt) +{ + struct il4965_scd_bc_tbl *scd_bc_tbl = il->scd_bc_tbls.addr; + int txq_id = txq->q.id; + int write_ptr = txq->q.write_ptr; + int len = byte_cnt + IL_TX_CRC_SIZE + IL_TX_DELIMITER_SIZE; + __le16 bc_ent; + + WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); + + bc_ent = cpu_to_le16(len & 0xFFF); + /* Set up byte count within first 256 entries */ + scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent; + + /* If within first 64 entries, duplicate at end */ + if (write_ptr < TFD_QUEUE_SIZE_BC_DUP) + scd_bc_tbl[txq_id].tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = + bc_ent; +} + +/** + * il4965_hw_get_temperature - return the calibrated temperature (in Kelvin) + * @stats: Provides the temperature reading from the uCode + * + * A return of <0 indicates bogus data in the stats + */ +static int +il4965_hw_get_temperature(struct il_priv *il) +{ + s32 temperature; + s32 vt; + s32 R1, R2, R3; + u32 R4; + + if (test_bit(S_TEMPERATURE, &il->status) && + (il->_4965.stats.flag & STATS_REPLY_FLG_HT40_MODE_MSK)) { + D_TEMP("Running HT40 temperature calibration\n"); + R1 = (s32) le32_to_cpu(il->card_alive_init.therm_r1[1]); + R2 = (s32) le32_to_cpu(il->card_alive_init.therm_r2[1]); + R3 = (s32) le32_to_cpu(il->card_alive_init.therm_r3[1]); + R4 = le32_to_cpu(il->card_alive_init.therm_r4[1]); + } else { + D_TEMP("Running temperature calibration\n"); + R1 = (s32) le32_to_cpu(il->card_alive_init.therm_r1[0]); + R2 = (s32) le32_to_cpu(il->card_alive_init.therm_r2[0]); + R3 = (s32) le32_to_cpu(il->card_alive_init.therm_r3[0]); + R4 = le32_to_cpu(il->card_alive_init.therm_r4[0]); + } + + /* + * Temperature is only 23 bits, so sign extend out to 32. + * + * NOTE If we haven't received a stats notification yet + * with an updated temperature, use R4 provided to us in the + * "initialize" ALIVE response. + */ + if (!test_bit(S_TEMPERATURE, &il->status)) + vt = sign_extend32(R4, 23); + else + vt = sign_extend32(le32_to_cpu + (il->_4965.stats.general.common.temperature), + 23); + + D_TEMP("Calib values R[1-3]: %d %d %d R4: %d\n", R1, R2, R3, vt); + + if (R3 == R1) { + IL_ERR("Calibration conflict R1 == R3\n"); + return -1; + } + + /* Calculate temperature in degrees Kelvin, adjust by 97%. + * Add offset to center the adjustment around 0 degrees Centigrade. */ + temperature = TEMPERATURE_CALIB_A_VAL * (vt - R2); + temperature /= (R3 - R1); + temperature = + (temperature * 97) / 100 + TEMPERATURE_CALIB_KELVIN_OFFSET; + + D_TEMP("Calibrated temperature: %dK, %dC\n", temperature, + KELVIN_TO_CELSIUS(temperature)); + + return temperature; +} + +/* Adjust Txpower only if temperature variance is greater than threshold. */ +#define IL_TEMPERATURE_THRESHOLD 3 + +/** + * il4965_is_temp_calib_needed - determines if new calibration is needed + * + * If the temperature changed has changed sufficiently, then a recalibration + * is needed. + * + * Assumes caller will replace il->last_temperature once calibration + * executed. + */ +static int +il4965_is_temp_calib_needed(struct il_priv *il) +{ + int temp_diff; + + if (!test_bit(S_STATS, &il->status)) { + D_TEMP("Temperature not updated -- no stats.\n"); + return 0; + } + + temp_diff = il->temperature - il->last_temperature; + + /* get absolute value */ + if (temp_diff < 0) { + D_POWER("Getting cooler, delta %d\n", temp_diff); + temp_diff = -temp_diff; + } else if (temp_diff == 0) + D_POWER("Temperature unchanged\n"); + else + D_POWER("Getting warmer, delta %d\n", temp_diff); + + if (temp_diff < IL_TEMPERATURE_THRESHOLD) { + D_POWER(" => thermal txpower calib not needed\n"); + return 0; + } + + D_POWER(" => thermal txpower calib needed\n"); + + return 1; +} + +static void +il4965_temperature_calib(struct il_priv *il) +{ + s32 temp; + + temp = il4965_hw_get_temperature(il); + if (IL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(temp)) + return; + + if (il->temperature != temp) { + if (il->temperature) + D_TEMP("Temperature changed " "from %dC to %dC\n", + KELVIN_TO_CELSIUS(il->temperature), + KELVIN_TO_CELSIUS(temp)); + else + D_TEMP("Temperature " "initialized to %dC\n", + KELVIN_TO_CELSIUS(temp)); + } + + il->temperature = temp; + set_bit(S_TEMPERATURE, &il->status); + + if (!il->disable_tx_power_cal && + unlikely(!test_bit(S_SCANNING, &il->status)) && + il4965_is_temp_calib_needed(il)) + queue_work(il->workqueue, &il->txpower_work); +} + +static u16 +il4965_get_hcmd_size(u8 cmd_id, u16 len) +{ + switch (cmd_id) { + case C_RXON: + return (u16) sizeof(struct il4965_rxon_cmd); + default: + return len; + } +} + +static u16 +il4965_build_addsta_hcmd(const struct il_addsta_cmd *cmd, u8 * data) +{ + struct il4965_addsta_cmd *addsta = (struct il4965_addsta_cmd *)data; + addsta->mode = cmd->mode; + memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify)); + memcpy(&addsta->key, &cmd->key, sizeof(struct il4965_keyinfo)); + addsta->station_flags = cmd->station_flags; + addsta->station_flags_msk = cmd->station_flags_msk; + addsta->tid_disable_tx = cmd->tid_disable_tx; + addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid; + addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid; + addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn; + addsta->sleep_tx_count = cmd->sleep_tx_count; + addsta->reserved1 = cpu_to_le16(0); + addsta->reserved2 = cpu_to_le16(0); + + return (u16) sizeof(struct il4965_addsta_cmd); +} + +static inline u32 +il4965_get_scd_ssn(struct il4965_tx_resp *tx_resp) +{ + return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN; +} + +static inline u32 +il4965_tx_status_to_mac80211(u32 status) +{ + status &= TX_STATUS_MSK; + + switch (status) { + case TX_STATUS_SUCCESS: + case TX_STATUS_DIRECT_DONE: + return IEEE80211_TX_STAT_ACK; + case TX_STATUS_FAIL_DEST_PS: + return IEEE80211_TX_STAT_TX_FILTERED; + default: + return 0; + } +} + +static inline bool +il4965_is_tx_success(u32 status) +{ + status &= TX_STATUS_MSK; + return (status == TX_STATUS_SUCCESS || status == TX_STATUS_DIRECT_DONE); +} + +/** + * il4965_tx_status_reply_tx - Handle Tx response for frames in aggregation queue + */ +static int +il4965_tx_status_reply_tx(struct il_priv *il, struct il_ht_agg *agg, + struct il4965_tx_resp *tx_resp, int txq_id, + u16 start_idx) +{ + u16 status; + struct agg_tx_status *frame_status = tx_resp->u.agg_status; + struct ieee80211_tx_info *info = NULL; + struct ieee80211_hdr *hdr = NULL; + u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); + int i, sh, idx; + u16 seq; + if (agg->wait_for_ba) + D_TX_REPLY("got tx response w/o block-ack\n"); + + agg->frame_count = tx_resp->frame_count; + agg->start_idx = start_idx; + agg->rate_n_flags = rate_n_flags; + agg->bitmap = 0; + + /* num frames attempted by Tx command */ + if (agg->frame_count == 1) { + /* Only one frame was attempted; no block-ack will arrive */ + status = le16_to_cpu(frame_status[0].status); + idx = start_idx; + + D_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n", + agg->frame_count, agg->start_idx, idx); + + info = IEEE80211_SKB_CB(il->txq[txq_id].txb[idx].skb); + info->status.rates[0].count = tx_resp->failure_frame + 1; + info->flags &= ~IEEE80211_TX_CTL_AMPDU; + info->flags |= il4965_tx_status_to_mac80211(status); + il4965_hwrate_to_tx_control(il, rate_n_flags, info); + + D_TX_REPLY("1 Frame 0x%x failure :%d\n", status & 0xff, + tx_resp->failure_frame); + D_TX_REPLY("Rate Info rate_n_flags=%x\n", rate_n_flags); + + agg->wait_for_ba = 0; + } else { + /* Two or more frames were attempted; expect block-ack */ + u64 bitmap = 0; + int start = agg->start_idx; + + /* Construct bit-map of pending frames within Tx win */ + for (i = 0; i < agg->frame_count; i++) { + u16 sc; + status = le16_to_cpu(frame_status[i].status); + seq = le16_to_cpu(frame_status[i].sequence); + idx = SEQ_TO_IDX(seq); + txq_id = SEQ_TO_QUEUE(seq); + + if (status & + (AGG_TX_STATE_FEW_BYTES_MSK | + AGG_TX_STATE_ABORT_MSK)) + continue; + + D_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n", + agg->frame_count, txq_id, idx); + + hdr = il_tx_queue_get_hdr(il, txq_id, idx); + if (!hdr) { + IL_ERR("BUG_ON idx doesn't point to valid skb" + " idx=%d, txq_id=%d\n", idx, txq_id); + return -1; + } + + sc = le16_to_cpu(hdr->seq_ctrl); + if (idx != (SEQ_TO_SN(sc) & 0xff)) { + IL_ERR("BUG_ON idx doesn't match seq control" + " idx=%d, seq_idx=%d, seq=%d\n", idx, + SEQ_TO_SN(sc), hdr->seq_ctrl); + return -1; + } + + D_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n", i, idx, + SEQ_TO_SN(sc)); + + sh = idx - start; + if (sh > 64) { + sh = (start - idx) + 0xff; + bitmap = bitmap << sh; + sh = 0; + start = idx; + } else if (sh < -64) + sh = 0xff - (start - idx); + else if (sh < 0) { + sh = start - idx; + start = idx; + bitmap = bitmap << sh; + sh = 0; + } + bitmap |= 1ULL << sh; + D_TX_REPLY("start=%d bitmap=0x%llx\n", start, + (unsigned long long)bitmap); + } + + agg->bitmap = bitmap; + agg->start_idx = start; + D_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n", + agg->frame_count, agg->start_idx, + (unsigned long long)agg->bitmap); + + if (bitmap) + agg->wait_for_ba = 1; + } + return 0; +} + +static u8 +il4965_find_station(struct il_priv *il, const u8 * addr) +{ + int i; + int start = 0; + int ret = IL_INVALID_STATION; + unsigned long flags; + + if ((il->iw_mode == NL80211_IFTYPE_ADHOC)) + start = IL_STA_ID; + + if (is_broadcast_ether_addr(addr)) + return il->ctx.bcast_sta_id; + + spin_lock_irqsave(&il->sta_lock, flags); + for (i = start; i < il->hw_params.max_stations; i++) + if (il->stations[i].used && + (!compare_ether_addr(il->stations[i].sta.sta.addr, addr))) { + ret = i; + goto out; + } + + D_ASSOC("can not find STA %pM total %d\n", addr, il->num_stations); + +out: + /* + * It may be possible that more commands interacting with stations + * arrive before we completed processing the adding of + * station + */ + if (ret != IL_INVALID_STATION && + (!(il->stations[ret].used & IL_STA_UCODE_ACTIVE) || + ((il->stations[ret].used & IL_STA_UCODE_ACTIVE) && + (il->stations[ret].used & IL_STA_UCODE_INPROGRESS)))) { + IL_ERR("Requested station info for sta %d before ready.\n", + ret); + ret = IL_INVALID_STATION; + } + spin_unlock_irqrestore(&il->sta_lock, flags); + return ret; +} + +static int +il4965_get_ra_sta_id(struct il_priv *il, struct ieee80211_hdr *hdr) +{ + if (il->iw_mode == NL80211_IFTYPE_STATION) { + return IL_AP_ID; + } else { + u8 *da = ieee80211_get_DA(hdr); + return il4965_find_station(il, da); + } +} + +/** + * il4965_hdl_tx - Handle standard (non-aggregation) Tx response + */ +static void +il4965_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + u16 sequence = le16_to_cpu(pkt->hdr.sequence); + int txq_id = SEQ_TO_QUEUE(sequence); + int idx = SEQ_TO_IDX(sequence); + struct il_tx_queue *txq = &il->txq[txq_id]; + struct ieee80211_hdr *hdr; + struct ieee80211_tx_info *info; + struct il4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; + u32 status = le32_to_cpu(tx_resp->u.status); + int uninitialized_var(tid); + int sta_id; + int freed; + u8 *qc = NULL; + unsigned long flags; + + if (idx >= txq->q.n_bd || il_queue_used(&txq->q, idx) == 0) { + IL_ERR("Read idx for DMA queue txq_id (%d) idx %d " + "is out of range [0-%d] %d %d\n", txq_id, idx, + txq->q.n_bd, txq->q.write_ptr, txq->q.read_ptr); + return; + } + + txq->time_stamp = jiffies; + info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb); + memset(&info->status, 0, sizeof(info->status)); + + hdr = il_tx_queue_get_hdr(il, txq_id, idx); + if (ieee80211_is_data_qos(hdr->frame_control)) { + qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & 0xf; + } + + sta_id = il4965_get_ra_sta_id(il, hdr); + if (txq->sched_retry && unlikely(sta_id == IL_INVALID_STATION)) { + IL_ERR("Station not known\n"); + return; + } + + spin_lock_irqsave(&il->sta_lock, flags); + if (txq->sched_retry) { + const u32 scd_ssn = il4965_get_scd_ssn(tx_resp); + struct il_ht_agg *agg = NULL; + WARN_ON(!qc); + + agg = &il->stations[sta_id].tid[tid].agg; + + il4965_tx_status_reply_tx(il, agg, tx_resp, txq_id, idx); + + /* check if BAR is needed */ + if ((tx_resp->frame_count == 1) && + !il4965_is_tx_success(status)) + info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; + + if (txq->q.read_ptr != (scd_ssn & 0xff)) { + idx = il_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); + D_TX_REPLY("Retry scheduler reclaim scd_ssn " + "%d idx %d\n", scd_ssn, idx); + freed = il4965_tx_queue_reclaim(il, txq_id, idx); + if (qc) + il4965_free_tfds_in_queue(il, sta_id, tid, + freed); + + if (il->mac80211_registered && + il_queue_space(&txq->q) > txq->q.low_mark && + agg->state != IL_EMPTYING_HW_QUEUE_DELBA) + il_wake_queue(il, txq); + } + } else { + info->status.rates[0].count = tx_resp->failure_frame + 1; + info->flags |= il4965_tx_status_to_mac80211(status); + il4965_hwrate_to_tx_control(il, + le32_to_cpu(tx_resp->rate_n_flags), + info); + + D_TX_REPLY("TXQ %d status %s (0x%08x) " + "rate_n_flags 0x%x retries %d\n", txq_id, + il4965_get_tx_fail_reason(status), status, + le32_to_cpu(tx_resp->rate_n_flags), + tx_resp->failure_frame); + + freed = il4965_tx_queue_reclaim(il, txq_id, idx); + if (qc && likely(sta_id != IL_INVALID_STATION)) + il4965_free_tfds_in_queue(il, sta_id, tid, freed); + else if (sta_id == IL_INVALID_STATION) + D_TX_REPLY("Station not known\n"); + + if (il->mac80211_registered && + il_queue_space(&txq->q) > txq->q.low_mark) + il_wake_queue(il, txq); + } + if (qc && likely(sta_id != IL_INVALID_STATION)) + il4965_txq_check_empty(il, sta_id, tid, txq_id); + + il4965_check_abort_status(il, tx_resp->frame_count, status); + + spin_unlock_irqrestore(&il->sta_lock, flags); +} + +static void +il4965_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il4965_beacon_notif *beacon = (void *)pkt->u.raw; + u8 rate __maybe_unused = + il4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); + + D_RX("beacon status %#x, retries:%d ibssmgr:%d " + "tsf:0x%.8x%.8x rate:%d\n", + le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, + beacon->beacon_notify_hdr.failure_frame, + le32_to_cpu(beacon->ibss_mgr_status), + le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate); + + il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); +} + +/* Set up 4965-specific Rx frame reply handlers */ +static void +il4965_handler_setup(struct il_priv *il) +{ + /* Legacy Rx frames */ + il->handlers[N_RX] = il4965_hdl_rx; + /* Tx response */ + il->handlers[C_TX] = il4965_hdl_tx; + il->handlers[N_BEACON] = il4965_hdl_beacon; +} + +static struct il_hcmd_ops il4965_hcmd = { + .rxon_assoc = il4965_send_rxon_assoc, + .commit_rxon = il4965_commit_rxon, + .set_rxon_chain = il4965_set_rxon_chain, +}; + +static void +il4965_post_scan(struct il_priv *il) +{ + struct il_rxon_context *ctx = &il->ctx; + + /* + * Since setting the RXON may have been deferred while + * performing the scan, fire one off if needed + */ + if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) + il_commit_rxon(il, ctx); +} + +static void +il4965_post_associate(struct il_priv *il) +{ + struct il_rxon_context *ctx = &il->ctx; + struct ieee80211_vif *vif = ctx->vif; + struct ieee80211_conf *conf = NULL; + int ret = 0; + + if (!vif || !il->is_open) + return; + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + il_scan_cancel_timeout(il, 200); + + conf = &il->hw->conf; + + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + il_commit_rxon(il, ctx); + + ret = il_send_rxon_timing(il, ctx); + if (ret) + IL_WARN("RXON timing - " "Attempting to continue.\n"); + + ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; + + il_set_rxon_ht(il, &il->current_ht_config); + + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, ctx); + + ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid); + + D_ASSOC("assoc id %d beacon interval %d\n", vif->bss_conf.aid, + vif->bss_conf.beacon_int); + + if (vif->bss_conf.use_short_preamble) + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + + if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { + if (vif->bss_conf.use_short_slot) + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; + } + + il_commit_rxon(il, ctx); + + D_ASSOC("Associated as %d to: %pM\n", vif->bss_conf.aid, + ctx->active.bssid_addr); + + switch (vif->type) { + case NL80211_IFTYPE_STATION: + break; + case NL80211_IFTYPE_ADHOC: + il4965_send_beacon_cmd(il); + break; + default: + IL_ERR("%s Should not be called in %d mode\n", __func__, + vif->type); + break; + } + + /* the chain noise calibration will enabled PM upon completion + * If chain noise has already been run, then we need to enable + * power management here */ + if (il->chain_noise_data.state == IL_CHAIN_NOISE_DONE) + il_power_update_mode(il, false); + + /* Enable Rx differential gain and sensitivity calibrations */ + il4965_chain_noise_reset(il); + il->start_calib = 1; +} + +static void +il4965_config_ap(struct il_priv *il) +{ + struct il_rxon_context *ctx = &il->ctx; + struct ieee80211_vif *vif = ctx->vif; + int ret = 0; + + lockdep_assert_held(&il->mutex); + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + /* The following should be done only at AP bring up */ + if (!il_is_associated_ctx(ctx)) { + + /* RXON - unassoc (to set timing command) */ + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + il_commit_rxon(il, ctx); + + /* RXON Timing */ + ret = il_send_rxon_timing(il, ctx); + if (ret) + IL_WARN("RXON timing failed - " + "Attempting to continue.\n"); + + /* AP has all antennas */ + il->chain_noise_data.active_chains = il->hw_params.valid_rx_ant; + il_set_rxon_ht(il, &il->current_ht_config); + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, ctx); + + ctx->staging.assoc_id = 0; + + if (vif->bss_conf.use_short_preamble) + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + + if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { + if (vif->bss_conf.use_short_slot) + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; + } + /* need to send beacon cmd before committing assoc RXON! */ + il4965_send_beacon_cmd(il); + /* restore RXON assoc */ + ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; + il_commit_rxon(il, ctx); + } + il4965_send_beacon_cmd(il); +} + +static struct il_hcmd_utils_ops il4965_hcmd_utils = { + .get_hcmd_size = il4965_get_hcmd_size, + .build_addsta_hcmd = il4965_build_addsta_hcmd, + .request_scan = il4965_request_scan, + .post_scan = il4965_post_scan, +}; + +static struct il_lib_ops il4965_lib = { + .set_hw_params = il4965_hw_set_hw_params, + .txq_update_byte_cnt_tbl = il4965_txq_update_byte_cnt_tbl, + .txq_attach_buf_to_tfd = il4965_hw_txq_attach_buf_to_tfd, + .txq_free_tfd = il4965_hw_txq_free_tfd, + .txq_init = il4965_hw_tx_queue_init, + .handler_setup = il4965_handler_setup, + .is_valid_rtc_data_addr = il4965_hw_valid_rtc_data_addr, + .init_alive_start = il4965_init_alive_start, + .load_ucode = il4965_load_bsm, + .dump_nic_error_log = il4965_dump_nic_error_log, + .dump_fh = il4965_dump_fh, + .set_channel_switch = il4965_hw_channel_switch, + .apm_ops = { + .init = il_apm_init, + .config = il4965_nic_config, + }, + .eeprom_ops = { + .regulatory_bands = { + EEPROM_REGULATORY_BAND_1_CHANNELS, + EEPROM_REGULATORY_BAND_2_CHANNELS, + EEPROM_REGULATORY_BAND_3_CHANNELS, + EEPROM_REGULATORY_BAND_4_CHANNELS, + EEPROM_REGULATORY_BAND_5_CHANNELS, + EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS, + EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS}, + .acquire_semaphore = il4965_eeprom_acquire_semaphore, + .release_semaphore = il4965_eeprom_release_semaphore, + }, + .send_tx_power = il4965_send_tx_power, + .update_chain_flags = il4965_update_chain_flags, + .temp_ops = { + .temperature = il4965_temperature_calib, + }, +#ifdef CONFIG_IWLEGACY_DEBUGFS + .debugfs_ops = { + .rx_stats_read = il4965_ucode_rx_stats_read, + .tx_stats_read = il4965_ucode_tx_stats_read, + .general_stats_read = il4965_ucode_general_stats_read, + }, +#endif +}; + +static const struct il_legacy_ops il4965_legacy_ops = { + .post_associate = il4965_post_associate, + .config_ap = il4965_config_ap, + .manage_ibss_station = il4965_manage_ibss_station, + .update_bcast_stations = il4965_update_bcast_stations, +}; + +struct ieee80211_ops il4965_hw_ops = { + .tx = il4965_mac_tx, + .start = il4965_mac_start, + .stop = il4965_mac_stop, + .add_interface = il_mac_add_interface, + .remove_interface = il_mac_remove_interface, + .change_interface = il_mac_change_interface, + .config = il_mac_config, + .configure_filter = il4965_configure_filter, + .set_key = il4965_mac_set_key, + .update_tkip_key = il4965_mac_update_tkip_key, + .conf_tx = il_mac_conf_tx, + .reset_tsf = il_mac_reset_tsf, + .bss_info_changed = il_mac_bss_info_changed, + .ampdu_action = il4965_mac_ampdu_action, + .hw_scan = il_mac_hw_scan, + .sta_add = il4965_mac_sta_add, + .sta_remove = il_mac_sta_remove, + .channel_switch = il4965_mac_channel_switch, + .tx_last_beacon = il_mac_tx_last_beacon, +}; + +static const struct il_ops il4965_ops = { + .lib = &il4965_lib, + .hcmd = &il4965_hcmd, + .utils = &il4965_hcmd_utils, + .led = &il4965_led_ops, + .legacy = &il4965_legacy_ops, + .ieee80211_ops = &il4965_hw_ops, +}; + +static struct il_base_params il4965_base_params = { + .eeprom_size = IL4965_EEPROM_IMG_SIZE, + .num_of_queues = IL49_NUM_QUEUES, + .num_of_ampdu_queues = IL49_NUM_AMPDU_QUEUES, + .pll_cfg_val = 0, + .set_l0s = true, + .use_bsm = true, + .led_compensation = 61, + .chain_noise_num_beacons = IL4965_CAL_NUM_BEACONS, + .wd_timeout = IL_DEF_WD_TIMEOUT, + .temperature_kelvin = true, + .ucode_tracing = true, + .sensitivity_calib_by_driver = true, + .chain_noise_calib_by_driver = true, +}; + +struct il_cfg il4965_cfg = { + .name = "Intel(R) Wireless WiFi Link 4965AGN", + .fw_name_pre = IL4965_FW_PRE, + .ucode_api_max = IL4965_UCODE_API_MAX, + .ucode_api_min = IL4965_UCODE_API_MIN, + .sku = IL_SKU_A | IL_SKU_G | IL_SKU_N, + .valid_tx_ant = ANT_AB, + .valid_rx_ant = ANT_ABC, + .eeprom_ver = EEPROM_4965_EEPROM_VERSION, + .eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION, + .ops = &il4965_ops, + .mod_params = &il4965_mod_params, + .base_params = &il4965_base_params, + .led_mode = IL_LED_BLINK, + /* + * Force use of chains B and C for scan RX on 5 GHz band + * because the device has off-channel reception on chain A. + */ + .scan_rx_antennas[IEEE80211_BAND_5GHZ] = ANT_BC, +}; + +/* Module firmware */ +MODULE_FIRMWARE(IL4965_MODULE_FIRMWARE(IL4965_UCODE_API_MAX)); diff --git a/drivers/net/wireless/iwlegacy/4965.h b/drivers/net/wireless/iwlegacy/4965.h new file mode 100644 index 000000000000..74472314bc37 --- /dev/null +++ b/drivers/net/wireless/iwlegacy/4965.h @@ -0,0 +1,1309 @@ +/****************************************************************************** + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#ifndef __il_4965_h__ +#define __il_4965_h__ + +struct il_rx_queue; +struct il_rx_buf; +struct il_rx_pkt; +struct il_tx_queue; +struct il_rxon_context; + +/* configuration for the _4965 devices */ +extern struct il_cfg il4965_cfg; + +extern struct il_mod_params il4965_mod_params; + +extern struct ieee80211_ops il4965_hw_ops; + +/* tx queue */ +void il4965_free_tfds_in_queue(struct il_priv *il, int sta_id, int tid, + int freed); + +/* RXON */ +void il4965_set_rxon_chain(struct il_priv *il, struct il_rxon_context *ctx); + +/* uCode */ +int il4965_verify_ucode(struct il_priv *il); + +/* lib */ +void il4965_check_abort_status(struct il_priv *il, u8 frame_count, u32 status); + +void il4965_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq); +int il4965_rx_init(struct il_priv *il, struct il_rx_queue *rxq); +int il4965_hw_nic_init(struct il_priv *il); +int il4965_dump_fh(struct il_priv *il, char **buf, bool display); + +/* rx */ +void il4965_rx_queue_restock(struct il_priv *il); +void il4965_rx_replenish(struct il_priv *il); +void il4965_rx_replenish_now(struct il_priv *il); +void il4965_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq); +int il4965_rxq_stop(struct il_priv *il); +int il4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); +void il4965_hdl_rx(struct il_priv *il, struct il_rx_buf *rxb); +void il4965_hdl_rx_phy(struct il_priv *il, struct il_rx_buf *rxb); +void il4965_rx_handle(struct il_priv *il); + +/* tx */ +void il4965_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq); +int il4965_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq, + dma_addr_t addr, u16 len, u8 reset, u8 pad); +int il4965_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq); +void il4965_hwrate_to_tx_control(struct il_priv *il, u32 rate_n_flags, + struct ieee80211_tx_info *info); +int il4965_tx_skb(struct il_priv *il, struct sk_buff *skb); +int il4965_tx_agg_start(struct il_priv *il, struct ieee80211_vif *vif, + struct ieee80211_sta *sta, u16 tid, u16 * ssn); +int il4965_tx_agg_stop(struct il_priv *il, struct ieee80211_vif *vif, + struct ieee80211_sta *sta, u16 tid); +int il4965_txq_check_empty(struct il_priv *il, int sta_id, u8 tid, int txq_id); +void il4965_hdl_compressed_ba(struct il_priv *il, struct il_rx_buf *rxb); +int il4965_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx); +void il4965_hw_txq_ctx_free(struct il_priv *il); +int il4965_txq_ctx_alloc(struct il_priv *il); +void il4965_txq_ctx_reset(struct il_priv *il); +void il4965_txq_ctx_stop(struct il_priv *il); +void il4965_txq_set_sched(struct il_priv *il, u32 mask); + +/* + * Acquire il->lock before calling this function ! + */ +void il4965_set_wr_ptrs(struct il_priv *il, int txq_id, u32 idx); +/** + * il4965_tx_queue_set_status - (optionally) start Tx/Cmd queue + * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed + * @scd_retry: (1) Indicates queue will be used in aggregation mode + * + * NOTE: Acquire il->lock before calling this function ! + */ +void il4965_tx_queue_set_status(struct il_priv *il, struct il_tx_queue *txq, + int tx_fifo_id, int scd_retry); + +u8 il4965_toggle_tx_ant(struct il_priv *il, u8 ant_idx, u8 valid); + +/* rx */ +void il4965_hdl_missed_beacon(struct il_priv *il, struct il_rx_buf *rxb); +bool il4965_good_plcp_health(struct il_priv *il, struct il_rx_pkt *pkt); +void il4965_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb); +void il4965_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb); + +/* scan */ +int il4965_request_scan(struct il_priv *il, struct ieee80211_vif *vif); + +/* station mgmt */ +int il4965_manage_ibss_station(struct il_priv *il, struct ieee80211_vif *vif, + bool add); + +/* hcmd */ +int il4965_send_beacon_cmd(struct il_priv *il); + +#ifdef CONFIG_IWLEGACY_DEBUG +const char *il4965_get_tx_fail_reason(u32 status); +#else +static inline const char * +il4965_get_tx_fail_reason(u32 status) +{ + return ""; +} +#endif + +/* station management */ +int il4965_alloc_bcast_station(struct il_priv *il, struct il_rxon_context *ctx); +int il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx, + const u8 *addr, u8 *sta_id_r); +int il4965_remove_default_wep_key(struct il_priv *il, + struct il_rxon_context *ctx, + struct ieee80211_key_conf *key); +int il4965_set_default_wep_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *key); +int il4965_restore_default_wep_keys(struct il_priv *il, + struct il_rxon_context *ctx); +int il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *key, u8 sta_id); +int il4965_remove_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *key, u8 sta_id); +void il4965_update_tkip_key(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_key_conf *keyconf, + struct ieee80211_sta *sta, u32 iv32, + u16 *phase1key); +int il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid); +int il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta, + int tid, u16 ssn); +int il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta, + int tid); +void il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt); +int il4965_update_bcast_stations(struct il_priv *il); + +/* rate */ +static inline u8 +il4965_hw_get_rate(__le32 rate_n_flags) +{ + return le32_to_cpu(rate_n_flags) & 0xFF; +} + +static inline __le32 +il4965_hw_set_rate_n_flags(u8 rate, u32 flags) +{ + return cpu_to_le32(flags | (u32) rate); +} + +/* eeprom */ +void il4965_eeprom_get_mac(const struct il_priv *il, u8 * mac); +int il4965_eeprom_acquire_semaphore(struct il_priv *il); +void il4965_eeprom_release_semaphore(struct il_priv *il); +int il4965_eeprom_check_version(struct il_priv *il); + +/* mac80211 handlers (for 4965) */ +void il4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb); +int il4965_mac_start(struct ieee80211_hw *hw); +void il4965_mac_stop(struct ieee80211_hw *hw); +void il4965_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *total_flags, u64 multicast); +int il4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, struct ieee80211_sta *sta, + struct ieee80211_key_conf *key); +void il4965_mac_update_tkip_key(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_key_conf *keyconf, + struct ieee80211_sta *sta, u32 iv32, + u16 *phase1key); +int il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + enum ieee80211_ampdu_mlme_action action, + struct ieee80211_sta *sta, u16 tid, u16 * ssn, + u8 buf_size); +int il4965_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta); +void il4965_mac_channel_switch(struct ieee80211_hw *hw, + struct ieee80211_channel_switch *ch_switch); + +void il4965_led_enable(struct il_priv *il); + +/* EEPROM */ +#define IL4965_EEPROM_IMG_SIZE 1024 + +/* + * uCode queue management definitions ... + * The first queue used for block-ack aggregation is #7 (4965 only). + * All block-ack aggregation queues should map to Tx DMA/FIFO channel 7. + */ +#define IL49_FIRST_AMPDU_QUEUE 7 + +/* Sizes and addresses for instruction and data memory (SRAM) in + * 4965's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */ +#define IL49_RTC_INST_LOWER_BOUND (0x000000) +#define IL49_RTC_INST_UPPER_BOUND (0x018000) + +#define IL49_RTC_DATA_LOWER_BOUND (0x800000) +#define IL49_RTC_DATA_UPPER_BOUND (0x80A000) + +#define IL49_RTC_INST_SIZE (IL49_RTC_INST_UPPER_BOUND - \ + IL49_RTC_INST_LOWER_BOUND) +#define IL49_RTC_DATA_SIZE (IL49_RTC_DATA_UPPER_BOUND - \ + IL49_RTC_DATA_LOWER_BOUND) + +#define IL49_MAX_INST_SIZE IL49_RTC_INST_SIZE +#define IL49_MAX_DATA_SIZE IL49_RTC_DATA_SIZE + +/* Size of uCode instruction memory in bootstrap state machine */ +#define IL49_MAX_BSM_SIZE BSM_SRAM_SIZE + +static inline int +il4965_hw_valid_rtc_data_addr(u32 addr) +{ + return (addr >= IL49_RTC_DATA_LOWER_BOUND && + addr < IL49_RTC_DATA_UPPER_BOUND); +} + +/********************* START TEMPERATURE *************************************/ + +/** + * 4965 temperature calculation. + * + * The driver must calculate the device temperature before calculating + * a txpower setting (amplifier gain is temperature dependent). The + * calculation uses 4 measurements, 3 of which (R1, R2, R3) are calibration + * values used for the life of the driver, and one of which (R4) is the + * real-time temperature indicator. + * + * uCode provides all 4 values to the driver via the "initialize alive" + * notification (see struct il4965_init_alive_resp). After the runtime uCode + * image loads, uCode updates the R4 value via stats notifications + * (see N_STATS), which occur after each received beacon + * when associated, or can be requested via C_STATS. + * + * NOTE: uCode provides the R4 value as a 23-bit signed value. Driver + * must sign-extend to 32 bits before applying formula below. + * + * Formula: + * + * degrees Kelvin = ((97 * 259 * (R4 - R2) / (R3 - R1)) / 100) + 8 + * + * NOTE: The basic formula is 259 * (R4-R2) / (R3-R1). The 97/100 is + * an additional correction, which should be centered around 0 degrees + * Celsius (273 degrees Kelvin). The 8 (3 percent of 273) compensates for + * centering the 97/100 correction around 0 degrees K. + * + * Add 273 to Kelvin value to find degrees Celsius, for comparing current + * temperature with factory-measured temperatures when calculating txpower + * settings. + */ +#define TEMPERATURE_CALIB_KELVIN_OFFSET 8 +#define TEMPERATURE_CALIB_A_VAL 259 + +/* Limit range of calculated temperature to be between these Kelvin values */ +#define IL_TX_POWER_TEMPERATURE_MIN (263) +#define IL_TX_POWER_TEMPERATURE_MAX (410) + +#define IL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(t) \ + ((t) < IL_TX_POWER_TEMPERATURE_MIN || \ + (t) > IL_TX_POWER_TEMPERATURE_MAX) + +/********************* END TEMPERATURE ***************************************/ + +/********************* START TXPOWER *****************************************/ + +/** + * 4965 txpower calculations rely on information from three sources: + * + * 1) EEPROM + * 2) "initialize" alive notification + * 3) stats notifications + * + * EEPROM data consists of: + * + * 1) Regulatory information (max txpower and channel usage flags) is provided + * separately for each channel that can possibly supported by 4965. + * 40 MHz wide (.11n HT40) channels are listed separately from 20 MHz + * (legacy) channels. + * + * See struct il4965_eeprom_channel for format, and struct il4965_eeprom + * for locations in EEPROM. + * + * 2) Factory txpower calibration information is provided separately for + * sub-bands of contiguous channels. 2.4GHz has just one sub-band, + * but 5 GHz has several sub-bands. + * + * In addition, per-band (2.4 and 5 Ghz) saturation txpowers are provided. + * + * See struct il4965_eeprom_calib_info (and the tree of structures + * contained within it) for format, and struct il4965_eeprom for + * locations in EEPROM. + * + * "Initialization alive" notification (see struct il4965_init_alive_resp) + * consists of: + * + * 1) Temperature calculation parameters. + * + * 2) Power supply voltage measurement. + * + * 3) Tx gain compensation to balance 2 transmitters for MIMO use. + * + * Statistics notifications deliver: + * + * 1) Current values for temperature param R4. + */ + +/** + * To calculate a txpower setting for a given desired target txpower, channel, + * modulation bit rate, and transmitter chain (4965 has 2 transmitters to + * support MIMO and transmit diversity), driver must do the following: + * + * 1) Compare desired txpower vs. (EEPROM) regulatory limit for this channel. + * Do not exceed regulatory limit; reduce target txpower if necessary. + * + * If setting up txpowers for MIMO rates (rate idxes 8-15, 24-31), + * 2 transmitters will be used simultaneously; driver must reduce the + * regulatory limit by 3 dB (half-power) for each transmitter, so the + * combined total output of the 2 transmitters is within regulatory limits. + * + * + * 2) Compare target txpower vs. (EEPROM) saturation txpower *reduced by + * backoff for this bit rate*. Do not exceed (saturation - backoff[rate]); + * reduce target txpower if necessary. + * + * Backoff values below are in 1/2 dB units (equivalent to steps in + * txpower gain tables): + * + * OFDM 6 - 36 MBit: 10 steps (5 dB) + * OFDM 48 MBit: 15 steps (7.5 dB) + * OFDM 54 MBit: 17 steps (8.5 dB) + * OFDM 60 MBit: 20 steps (10 dB) + * CCK all rates: 10 steps (5 dB) + * + * Backoff values apply to saturation txpower on a per-transmitter basis; + * when using MIMO (2 transmitters), each transmitter uses the same + * saturation level provided in EEPROM, and the same backoff values; + * no reduction (such as with regulatory txpower limits) is required. + * + * Saturation and Backoff values apply equally to 20 Mhz (legacy) channel + * widths and 40 Mhz (.11n HT40) channel widths; there is no separate + * factory measurement for ht40 channels. + * + * The result of this step is the final target txpower. The rest of + * the steps figure out the proper settings for the device to achieve + * that target txpower. + * + * + * 3) Determine (EEPROM) calibration sub band for the target channel, by + * comparing against first and last channels in each sub band + * (see struct il4965_eeprom_calib_subband_info). + * + * + * 4) Linearly interpolate (EEPROM) factory calibration measurement sets, + * referencing the 2 factory-measured (sample) channels within the sub band. + * + * Interpolation is based on difference between target channel's frequency + * and the sample channels' frequencies. Since channel numbers are based + * on frequency (5 MHz between each channel number), this is equivalent + * to interpolating based on channel number differences. + * + * Note that the sample channels may or may not be the channels at the + * edges of the sub band. The target channel may be "outside" of the + * span of the sampled channels. + * + * Driver may choose the pair (for 2 Tx chains) of measurements (see + * struct il4965_eeprom_calib_ch_info) for which the actual measured + * txpower comes closest to the desired txpower. Usually, though, + * the middle set of measurements is closest to the regulatory limits, + * and is therefore a good choice for all txpower calculations (this + * assumes that high accuracy is needed for maximizing legal txpower, + * while lower txpower configurations do not need as much accuracy). + * + * Driver should interpolate both members of the chosen measurement pair, + * i.e. for both Tx chains (radio transmitters), unless the driver knows + * that only one of the chains will be used (e.g. only one tx antenna + * connected, but this should be unusual). The rate scaling algorithm + * switches antennas to find best performance, so both Tx chains will + * be used (although only one at a time) even for non-MIMO transmissions. + * + * Driver should interpolate factory values for temperature, gain table + * idx, and actual power. The power amplifier detector values are + * not used by the driver. + * + * Sanity check: If the target channel happens to be one of the sample + * channels, the results should agree with the sample channel's + * measurements! + * + * + * 5) Find difference between desired txpower and (interpolated) + * factory-measured txpower. Using (interpolated) factory gain table idx + * (shown elsewhere) as a starting point, adjust this idx lower to + * increase txpower, or higher to decrease txpower, until the target + * txpower is reached. Each step in the gain table is 1/2 dB. + * + * For example, if factory measured txpower is 16 dBm, and target txpower + * is 13 dBm, add 6 steps to the factory gain idx to reduce txpower + * by 3 dB. + * + * + * 6) Find difference between current device temperature and (interpolated) + * factory-measured temperature for sub-band. Factory values are in + * degrees Celsius. To calculate current temperature, see comments for + * "4965 temperature calculation". + * + * If current temperature is higher than factory temperature, driver must + * increase gain (lower gain table idx), and vice verse. + * + * Temperature affects gain differently for different channels: + * + * 2.4 GHz all channels: 3.5 degrees per half-dB step + * 5 GHz channels 34-43: 4.5 degrees per half-dB step + * 5 GHz channels >= 44: 4.0 degrees per half-dB step + * + * NOTE: Temperature can increase rapidly when transmitting, especially + * with heavy traffic at high txpowers. Driver should update + * temperature calculations often under these conditions to + * maintain strong txpower in the face of rising temperature. + * + * + * 7) Find difference between current power supply voltage indicator + * (from "initialize alive") and factory-measured power supply voltage + * indicator (EEPROM). + * + * If the current voltage is higher (indicator is lower) than factory + * voltage, gain should be reduced (gain table idx increased) by: + * + * (eeprom - current) / 7 + * + * If the current voltage is lower (indicator is higher) than factory + * voltage, gain should be increased (gain table idx decreased) by: + * + * 2 * (current - eeprom) / 7 + * + * If number of idx steps in either direction turns out to be > 2, + * something is wrong ... just use 0. + * + * NOTE: Voltage compensation is independent of band/channel. + * + * NOTE: "Initialize" uCode measures current voltage, which is assumed + * to be constant after this initial measurement. Voltage + * compensation for txpower (number of steps in gain table) + * may be calculated once and used until the next uCode bootload. + * + * + * 8) If setting up txpowers for MIMO rates (rate idxes 8-15, 24-31), + * adjust txpower for each transmitter chain, so txpower is balanced + * between the two chains. There are 5 pairs of tx_atten[group][chain] + * values in "initialize alive", one pair for each of 5 channel ranges: + * + * Group 0: 5 GHz channel 34-43 + * Group 1: 5 GHz channel 44-70 + * Group 2: 5 GHz channel 71-124 + * Group 3: 5 GHz channel 125-200 + * Group 4: 2.4 GHz all channels + * + * Add the tx_atten[group][chain] value to the idx for the target chain. + * The values are signed, but are in pairs of 0 and a non-negative number, + * so as to reduce gain (if necessary) of the "hotter" channel. This + * avoids any need to double-check for regulatory compliance after + * this step. + * + * + * 9) If setting up for a CCK rate, lower the gain by adding a CCK compensation + * value to the idx: + * + * Hardware rev B: 9 steps (4.5 dB) + * Hardware rev C: 5 steps (2.5 dB) + * + * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG, + * bits [3:2], 1 = B, 2 = C. + * + * NOTE: This compensation is in addition to any saturation backoff that + * might have been applied in an earlier step. + * + * + * 10) Select the gain table, based on band (2.4 vs 5 GHz). + * + * Limit the adjusted idx to stay within the table! + * + * + * 11) Read gain table entries for DSP and radio gain, place into appropriate + * location(s) in command (struct il4965_txpowertable_cmd). + */ + +/** + * When MIMO is used (2 transmitters operating simultaneously), driver should + * limit each transmitter to deliver a max of 3 dB below the regulatory limit + * for the device. That is, use half power for each transmitter, so total + * txpower is within regulatory limits. + * + * The value "6" represents number of steps in gain table to reduce power 3 dB. + * Each step is 1/2 dB. + */ +#define IL_TX_POWER_MIMO_REGULATORY_COMPENSATION (6) + +/** + * CCK gain compensation. + * + * When calculating txpowers for CCK, after making sure that the target power + * is within regulatory and saturation limits, driver must additionally + * back off gain by adding these values to the gain table idx. + * + * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG, + * bits [3:2], 1 = B, 2 = C. + */ +#define IL_TX_POWER_CCK_COMPENSATION_B_STEP (9) +#define IL_TX_POWER_CCK_COMPENSATION_C_STEP (5) + +/* + * 4965 power supply voltage compensation for txpower + */ +#define TX_POWER_IL_VOLTAGE_CODES_PER_03V (7) + +/** + * Gain tables. + * + * The following tables contain pair of values for setting txpower, i.e. + * gain settings for the output of the device's digital signal processor (DSP), + * and for the analog gain structure of the transmitter. + * + * Each entry in the gain tables represents a step of 1/2 dB. Note that these + * are *relative* steps, not indications of absolute output power. Output + * power varies with temperature, voltage, and channel frequency, and also + * requires consideration of average power (to satisfy regulatory constraints), + * and peak power (to avoid distortion of the output signal). + * + * Each entry contains two values: + * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained + * linear value that multiplies the output of the digital signal processor, + * before being sent to the analog radio. + * 2) Radio gain. This sets the analog gain of the radio Tx path. + * It is a coarser setting, and behaves in a logarithmic (dB) fashion. + * + * EEPROM contains factory calibration data for txpower. This maps actual + * measured txpower levels to gain settings in the "well known" tables + * below ("well-known" means here that both factory calibration *and* the + * driver work with the same table). + * + * There are separate tables for 2.4 GHz and 5 GHz bands. The 5 GHz table + * has an extension (into negative idxes), in case the driver needs to + * boost power setting for high device temperatures (higher than would be + * present during factory calibration). A 5 Ghz EEPROM idx of "40" + * corresponds to the 49th entry in the table used by the driver. + */ +#define MIN_TX_GAIN_IDX (0) /* highest gain, lowest idx, 2.4 */ +#define MIN_TX_GAIN_IDX_52GHZ_EXT (-9) /* highest gain, lowest idx, 5 */ + +/** + * 2.4 GHz gain table + * + * Index Dsp gain Radio gain + * 0 110 0x3f (highest gain) + * 1 104 0x3f + * 2 98 0x3f + * 3 110 0x3e + * 4 104 0x3e + * 5 98 0x3e + * 6 110 0x3d + * 7 104 0x3d + * 8 98 0x3d + * 9 110 0x3c + * 10 104 0x3c + * 11 98 0x3c + * 12 110 0x3b + * 13 104 0x3b + * 14 98 0x3b + * 15 110 0x3a + * 16 104 0x3a + * 17 98 0x3a + * 18 110 0x39 + * 19 104 0x39 + * 20 98 0x39 + * 21 110 0x38 + * 22 104 0x38 + * 23 98 0x38 + * 24 110 0x37 + * 25 104 0x37 + * 26 98 0x37 + * 27 110 0x36 + * 28 104 0x36 + * 29 98 0x36 + * 30 110 0x35 + * 31 104 0x35 + * 32 98 0x35 + * 33 110 0x34 + * 34 104 0x34 + * 35 98 0x34 + * 36 110 0x33 + * 37 104 0x33 + * 38 98 0x33 + * 39 110 0x32 + * 40 104 0x32 + * 41 98 0x32 + * 42 110 0x31 + * 43 104 0x31 + * 44 98 0x31 + * 45 110 0x30 + * 46 104 0x30 + * 47 98 0x30 + * 48 110 0x6 + * 49 104 0x6 + * 50 98 0x6 + * 51 110 0x5 + * 52 104 0x5 + * 53 98 0x5 + * 54 110 0x4 + * 55 104 0x4 + * 56 98 0x4 + * 57 110 0x3 + * 58 104 0x3 + * 59 98 0x3 + * 60 110 0x2 + * 61 104 0x2 + * 62 98 0x2 + * 63 110 0x1 + * 64 104 0x1 + * 65 98 0x1 + * 66 110 0x0 + * 67 104 0x0 + * 68 98 0x0 + * 69 97 0 + * 70 96 0 + * 71 95 0 + * 72 94 0 + * 73 93 0 + * 74 92 0 + * 75 91 0 + * 76 90 0 + * 77 89 0 + * 78 88 0 + * 79 87 0 + * 80 86 0 + * 81 85 0 + * 82 84 0 + * 83 83 0 + * 84 82 0 + * 85 81 0 + * 86 80 0 + * 87 79 0 + * 88 78 0 + * 89 77 0 + * 90 76 0 + * 91 75 0 + * 92 74 0 + * 93 73 0 + * 94 72 0 + * 95 71 0 + * 96 70 0 + * 97 69 0 + * 98 68 0 + */ + +/** + * 5 GHz gain table + * + * Index Dsp gain Radio gain + * -9 123 0x3F (highest gain) + * -8 117 0x3F + * -7 110 0x3F + * -6 104 0x3F + * -5 98 0x3F + * -4 110 0x3E + * -3 104 0x3E + * -2 98 0x3E + * -1 110 0x3D + * 0 104 0x3D + * 1 98 0x3D + * 2 110 0x3C + * 3 104 0x3C + * 4 98 0x3C + * 5 110 0x3B + * 6 104 0x3B + * 7 98 0x3B + * 8 110 0x3A + * 9 104 0x3A + * 10 98 0x3A + * 11 110 0x39 + * 12 104 0x39 + * 13 98 0x39 + * 14 110 0x38 + * 15 104 0x38 + * 16 98 0x38 + * 17 110 0x37 + * 18 104 0x37 + * 19 98 0x37 + * 20 110 0x36 + * 21 104 0x36 + * 22 98 0x36 + * 23 110 0x35 + * 24 104 0x35 + * 25 98 0x35 + * 26 110 0x34 + * 27 104 0x34 + * 28 98 0x34 + * 29 110 0x33 + * 30 104 0x33 + * 31 98 0x33 + * 32 110 0x32 + * 33 104 0x32 + * 34 98 0x32 + * 35 110 0x31 + * 36 104 0x31 + * 37 98 0x31 + * 38 110 0x30 + * 39 104 0x30 + * 40 98 0x30 + * 41 110 0x25 + * 42 104 0x25 + * 43 98 0x25 + * 44 110 0x24 + * 45 104 0x24 + * 46 98 0x24 + * 47 110 0x23 + * 48 104 0x23 + * 49 98 0x23 + * 50 110 0x22 + * 51 104 0x18 + * 52 98 0x18 + * 53 110 0x17 + * 54 104 0x17 + * 55 98 0x17 + * 56 110 0x16 + * 57 104 0x16 + * 58 98 0x16 + * 59 110 0x15 + * 60 104 0x15 + * 61 98 0x15 + * 62 110 0x14 + * 63 104 0x14 + * 64 98 0x14 + * 65 110 0x13 + * 66 104 0x13 + * 67 98 0x13 + * 68 110 0x12 + * 69 104 0x08 + * 70 98 0x08 + * 71 110 0x07 + * 72 104 0x07 + * 73 98 0x07 + * 74 110 0x06 + * 75 104 0x06 + * 76 98 0x06 + * 77 110 0x05 + * 78 104 0x05 + * 79 98 0x05 + * 80 110 0x04 + * 81 104 0x04 + * 82 98 0x04 + * 83 110 0x03 + * 84 104 0x03 + * 85 98 0x03 + * 86 110 0x02 + * 87 104 0x02 + * 88 98 0x02 + * 89 110 0x01 + * 90 104 0x01 + * 91 98 0x01 + * 92 110 0x00 + * 93 104 0x00 + * 94 98 0x00 + * 95 93 0x00 + * 96 88 0x00 + * 97 83 0x00 + * 98 78 0x00 + */ + +/** + * Sanity checks and default values for EEPROM regulatory levels. + * If EEPROM values fall outside MIN/MAX range, use default values. + * + * Regulatory limits refer to the maximum average txpower allowed by + * regulatory agencies in the geographies in which the device is meant + * to be operated. These limits are SKU-specific (i.e. geography-specific), + * and channel-specific; each channel has an individual regulatory limit + * listed in the EEPROM. + * + * Units are in half-dBm (i.e. "34" means 17 dBm). + */ +#define IL_TX_POWER_DEFAULT_REGULATORY_24 (34) +#define IL_TX_POWER_DEFAULT_REGULATORY_52 (34) +#define IL_TX_POWER_REGULATORY_MIN (0) +#define IL_TX_POWER_REGULATORY_MAX (34) + +/** + * Sanity checks and default values for EEPROM saturation levels. + * If EEPROM values fall outside MIN/MAX range, use default values. + * + * Saturation is the highest level that the output power amplifier can produce + * without significant clipping distortion. This is a "peak" power level. + * Different types of modulation (i.e. various "rates", and OFDM vs. CCK) + * require differing amounts of backoff, relative to their average power output, + * in order to avoid clipping distortion. + * + * Driver must make sure that it is violating neither the saturation limit, + * nor the regulatory limit, when calculating Tx power settings for various + * rates. + * + * Units are in half-dBm (i.e. "38" means 19 dBm). + */ +#define IL_TX_POWER_DEFAULT_SATURATION_24 (38) +#define IL_TX_POWER_DEFAULT_SATURATION_52 (38) +#define IL_TX_POWER_SATURATION_MIN (20) +#define IL_TX_POWER_SATURATION_MAX (50) + +/** + * Channel groups used for Tx Attenuation calibration (MIMO tx channel balance) + * and thermal Txpower calibration. + * + * When calculating txpower, driver must compensate for current device + * temperature; higher temperature requires higher gain. Driver must calculate + * current temperature (see "4965 temperature calculation"), then compare vs. + * factory calibration temperature in EEPROM; if current temperature is higher + * than factory temperature, driver must *increase* gain by proportions shown + * in table below. If current temperature is lower than factory, driver must + * *decrease* gain. + * + * Different frequency ranges require different compensation, as shown below. + */ +/* Group 0, 5.2 GHz ch 34-43: 4.5 degrees per 1/2 dB. */ +#define CALIB_IL_TX_ATTEN_GR1_FCH 34 +#define CALIB_IL_TX_ATTEN_GR1_LCH 43 + +/* Group 1, 5.3 GHz ch 44-70: 4.0 degrees per 1/2 dB. */ +#define CALIB_IL_TX_ATTEN_GR2_FCH 44 +#define CALIB_IL_TX_ATTEN_GR2_LCH 70 + +/* Group 2, 5.5 GHz ch 71-124: 4.0 degrees per 1/2 dB. */ +#define CALIB_IL_TX_ATTEN_GR3_FCH 71 +#define CALIB_IL_TX_ATTEN_GR3_LCH 124 + +/* Group 3, 5.7 GHz ch 125-200: 4.0 degrees per 1/2 dB. */ +#define CALIB_IL_TX_ATTEN_GR4_FCH 125 +#define CALIB_IL_TX_ATTEN_GR4_LCH 200 + +/* Group 4, 2.4 GHz all channels: 3.5 degrees per 1/2 dB. */ +#define CALIB_IL_TX_ATTEN_GR5_FCH 1 +#define CALIB_IL_TX_ATTEN_GR5_LCH 20 + +enum { + CALIB_CH_GROUP_1 = 0, + CALIB_CH_GROUP_2 = 1, + CALIB_CH_GROUP_3 = 2, + CALIB_CH_GROUP_4 = 3, + CALIB_CH_GROUP_5 = 4, + CALIB_CH_GROUP_MAX +}; + +/********************* END TXPOWER *****************************************/ + +/** + * Tx/Rx Queues + * + * Most communication between driver and 4965 is via queues of data buffers. + * For example, all commands that the driver issues to device's embedded + * controller (uCode) are via the command queue (one of the Tx queues). All + * uCode command responses/replies/notifications, including Rx frames, are + * conveyed from uCode to driver via the Rx queue. + * + * Most support for these queues, including handshake support, resides in + * structures in host DRAM, shared between the driver and the device. When + * allocating this memory, the driver must make sure that data written by + * the host CPU updates DRAM immediately (and does not get "stuck" in CPU's + * cache memory), so DRAM and cache are consistent, and the device can + * immediately see changes made by the driver. + * + * 4965 supports up to 16 DRAM-based Tx queues, and services these queues via + * up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array + * in DRAM containing 256 Transmit Frame Descriptors (TFDs). + */ +#define IL49_NUM_FIFOS 7 +#define IL49_CMD_FIFO_NUM 4 +#define IL49_NUM_QUEUES 16 +#define IL49_NUM_AMPDU_QUEUES 8 + +/** + * struct il4965_schedq_bc_tbl + * + * Byte Count table + * + * Each Tx queue uses a byte-count table containing 320 entries: + * one 16-bit entry for each of 256 TFDs, plus an additional 64 entries that + * duplicate the first 64 entries (to avoid wrap-around within a Tx win; + * max Tx win is 64 TFDs). + * + * When driver sets up a new TFD, it must also enter the total byte count + * of the frame to be transmitted into the corresponding entry in the byte + * count table for the chosen Tx queue. If the TFD idx is 0-63, the driver + * must duplicate the byte count entry in corresponding idx 256-319. + * + * padding puts each byte count table on a 1024-byte boundary; + * 4965 assumes tables are separated by 1024 bytes. + */ +struct il4965_scd_bc_tbl { + __le16 tfd_offset[TFD_QUEUE_BC_SIZE]; + u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)]; +} __packed; + +#define IL4965_RTC_INST_LOWER_BOUND (0x000000) + +/* RSSI to dBm */ +#define IL4965_RSSI_OFFSET 44 + +/* PCI registers */ +#define PCI_CFG_RETRY_TIMEOUT 0x041 + +/* PCI register values */ +#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01 +#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02 + +#define IL4965_DEFAULT_TX_RETRY 15 + +/* EEPROM */ +#define IL4965_FIRST_AMPDU_QUEUE 10 + +/* Calibration */ +void il4965_chain_noise_calibration(struct il_priv *il, void *stat_resp); +void il4965_sensitivity_calibration(struct il_priv *il, void *resp); +void il4965_init_sensitivity(struct il_priv *il); +void il4965_reset_run_time_calib(struct il_priv *il); +void il4965_calib_free_results(struct il_priv *il); + +/* Debug */ +#ifdef CONFIG_IWLEGACY_DEBUGFS +ssize_t il4965_ucode_rx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); +ssize_t il4965_ucode_tx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); +ssize_t il4965_ucode_general_stats_read(struct file *file, + char __user *user_buf, size_t count, + loff_t *ppos); +#endif + +/****************************/ +/* Flow Handler Definitions */ +/****************************/ + +/** + * This I/O area is directly read/writable by driver (e.g. Linux uses writel()) + * Addresses are offsets from device's PCI hardware base address. + */ +#define FH49_MEM_LOWER_BOUND (0x1000) +#define FH49_MEM_UPPER_BOUND (0x2000) + +/** + * Keep-Warm (KW) buffer base address. + * + * Driver must allocate a 4KByte buffer that is used by 4965 for keeping the + * host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency + * DRAM access when 4965 is Txing or Rxing. The dummy accesses prevent host + * from going into a power-savings mode that would cause higher DRAM latency, + * and possible data over/under-runs, before all Tx/Rx is complete. + * + * Driver loads FH49_KW_MEM_ADDR_REG with the physical address (bits 35:4) + * of the buffer, which must be 4K aligned. Once this is set up, the 4965 + * automatically invokes keep-warm accesses when normal accesses might not + * be sufficient to maintain fast DRAM response. + * + * Bit fields: + * 31-0: Keep-warm buffer physical base address [35:4], must be 4K aligned + */ +#define FH49_KW_MEM_ADDR_REG (FH49_MEM_LOWER_BOUND + 0x97C) + +/** + * TFD Circular Buffers Base (CBBC) addresses + * + * 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident + * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs) + * (see struct il_tfd_frame). These 16 pointer registers are offset by 0x04 + * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte + * aligned (address bits 0-7 must be 0). + * + * Bit fields in each pointer register: + * 27-0: TFD CB physical base address [35:8], must be 256-byte aligned + */ +#define FH49_MEM_CBBC_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x9D0) +#define FH49_MEM_CBBC_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xA10) + +/* Find TFD CB base pointer for given queue (range 0-15). */ +#define FH49_MEM_CBBC_QUEUE(x) (FH49_MEM_CBBC_LOWER_BOUND + (x) * 0x4) + +/** + * Rx SRAM Control and Status Registers (RSCSR) + * + * These registers provide handshake between driver and 4965 for the Rx queue + * (this queue handles *all* command responses, notifications, Rx data, etc. + * sent from 4965 uCode to host driver). Unlike Tx, there is only one Rx + * queue, and only one Rx DMA/FIFO channel. Also unlike Tx, which can + * concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer + * Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1 + * mapping between RBDs and RBs. + * + * Driver must allocate host DRAM memory for the following, and set the + * physical address of each into 4965 registers: + * + * 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256 + * entries (although any power of 2, up to 4096, is selectable by driver). + * Each entry (1 dword) points to a receive buffer (RB) of consistent size + * (typically 4K, although 8K or 16K are also selectable by driver). + * Driver sets up RB size and number of RBDs in the CB via Rx config + * register FH49_MEM_RCSR_CHNL0_CONFIG_REG. + * + * Bit fields within one RBD: + * 27-0: Receive Buffer physical address bits [35:8], 256-byte aligned + * + * Driver sets physical address [35:8] of base of RBD circular buffer + * into FH49_RSCSR_CHNL0_RBDCB_BASE_REG [27:0]. + * + * 2) Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers + * (RBs) have been filled, via a "write pointer", actually the idx of + * the RB's corresponding RBD within the circular buffer. Driver sets + * physical address [35:4] into FH49_RSCSR_CHNL0_STTS_WPTR_REG [31:0]. + * + * Bit fields in lower dword of Rx status buffer (upper dword not used + * by driver; see struct il4965_shared, val0): + * 31-12: Not used by driver + * 11- 0: Index of last filled Rx buffer descriptor + * (4965 writes, driver reads this value) + * + * As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must + * enter pointers to these RBs into contiguous RBD circular buffer entries, + * and update the 4965's "write" idx register, + * FH49_RSCSR_CHNL0_RBDCB_WPTR_REG. + * + * This "write" idx corresponds to the *next* RBD that the driver will make + * available, i.e. one RBD past the tail of the ready-to-fill RBDs within + * the circular buffer. This value should initially be 0 (before preparing any + * RBs), should be 8 after preparing the first 8 RBs (for example), and must + * wrap back to 0 at the end of the circular buffer (but don't wrap before + * "read" idx has advanced past 1! See below). + * NOTE: 4965 EXPECTS THE WRITE IDX TO BE INCREMENTED IN MULTIPLES OF 8. + * + * As the 4965 fills RBs (referenced from contiguous RBDs within the circular + * buffer), it updates the Rx status buffer in host DRAM, 2) described above, + * to tell the driver the idx of the latest filled RBD. The driver must + * read this "read" idx from DRAM after receiving an Rx interrupt from 4965. + * + * The driver must also internally keep track of a third idx, which is the + * next RBD to process. When receiving an Rx interrupt, driver should process + * all filled but unprocessed RBs up to, but not including, the RB + * corresponding to the "read" idx. For example, if "read" idx becomes "1", + * driver may process the RB pointed to by RBD 0. Depending on volume of + * traffic, there may be many RBs to process. + * + * If read idx == write idx, 4965 thinks there is no room to put new data. + * Due to this, the maximum number of filled RBs is 255, instead of 256. To + * be safe, make sure that there is a gap of at least 2 RBDs between "write" + * and "read" idxes; that is, make sure that there are no more than 254 + * buffers waiting to be filled. + */ +#define FH49_MEM_RSCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xBC0) +#define FH49_MEM_RSCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xC00) +#define FH49_MEM_RSCSR_CHNL0 (FH49_MEM_RSCSR_LOWER_BOUND) + +/** + * Physical base address of 8-byte Rx Status buffer. + * Bit fields: + * 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned. + */ +#define FH49_RSCSR_CHNL0_STTS_WPTR_REG (FH49_MEM_RSCSR_CHNL0) + +/** + * Physical base address of Rx Buffer Descriptor Circular Buffer. + * Bit fields: + * 27-0: RBD CD physical base address [35:8], must be 256-byte aligned. + */ +#define FH49_RSCSR_CHNL0_RBDCB_BASE_REG (FH49_MEM_RSCSR_CHNL0 + 0x004) + +/** + * Rx write pointer (idx, really!). + * Bit fields: + * 11-0: Index of driver's most recent prepared-to-be-filled RBD, + 1. + * NOTE: For 256-entry circular buffer, use only bits [7:0]. + */ +#define FH49_RSCSR_CHNL0_RBDCB_WPTR_REG (FH49_MEM_RSCSR_CHNL0 + 0x008) +#define FH49_RSCSR_CHNL0_WPTR (FH49_RSCSR_CHNL0_RBDCB_WPTR_REG) + +/** + * Rx Config/Status Registers (RCSR) + * Rx Config Reg for channel 0 (only channel used) + * + * Driver must initialize FH49_MEM_RCSR_CHNL0_CONFIG_REG as follows for + * normal operation (see bit fields). + * + * Clearing FH49_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA. + * Driver should poll FH49_MEM_RSSR_RX_STATUS_REG for + * FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing. + * + * Bit fields: + * 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame, + * '10' operate normally + * 29-24: reserved + * 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal), + * min "5" for 32 RBDs, max "12" for 4096 RBDs. + * 19-18: reserved + * 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K, + * '10' 12K, '11' 16K. + * 15-14: reserved + * 13-12: IRQ destination; '00' none, '01' host driver (normal operation) + * 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec) + * typical value 0x10 (about 1/2 msec) + * 3- 0: reserved + */ +#define FH49_MEM_RCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xC00) +#define FH49_MEM_RCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xCC0) +#define FH49_MEM_RCSR_CHNL0 (FH49_MEM_RCSR_LOWER_BOUND) + +#define FH49_MEM_RCSR_CHNL0_CONFIG_REG (FH49_MEM_RCSR_CHNL0) + +#define FH49_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MSK (0x00000FF0) /* bits 4-11 */ +#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MSK (0x00001000) /* bits 12 */ +#define FH49_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK (0x00008000) /* bit 15 */ +#define FH49_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MSK (0x00030000) /* bits 16-17 */ +#define FH49_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */ +#define FH49_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31 */ + +#define FH49_RCSR_RX_CONFIG_RBDCB_SIZE_POS (20) +#define FH49_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS (4) +#define RX_RB_TIMEOUT (0x10) + +#define FH49_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000) +#define FH49_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000) +#define FH49_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000) + +#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000) +#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000) +#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000) +#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000) + +#define FH49_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY (0x00000004) +#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000) +#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000) + +/** + * Rx Shared Status Registers (RSSR) + * + * After stopping Rx DMA channel (writing 0 to + * FH49_MEM_RCSR_CHNL0_CONFIG_REG), driver must poll + * FH49_MEM_RSSR_RX_STATUS_REG until Rx channel is idle. + * + * Bit fields: + * 24: 1 = Channel 0 is idle + * + * FH49_MEM_RSSR_SHARED_CTRL_REG and FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV + * contain default values that should not be altered by the driver. + */ +#define FH49_MEM_RSSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xC40) +#define FH49_MEM_RSSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xD00) + +#define FH49_MEM_RSSR_SHARED_CTRL_REG (FH49_MEM_RSSR_LOWER_BOUND) +#define FH49_MEM_RSSR_RX_STATUS_REG (FH49_MEM_RSSR_LOWER_BOUND + 0x004) +#define FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV\ + (FH49_MEM_RSSR_LOWER_BOUND + 0x008) + +#define FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000) + +#define FH49_MEM_TFDIB_REG1_ADDR_BITSHIFT 28 + +/* TFDB Area - TFDs buffer table */ +#define FH49_MEM_TFDIB_DRAM_ADDR_LSB_MSK (0xFFFFFFFF) +#define FH49_TFDIB_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x900) +#define FH49_TFDIB_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0x958) +#define FH49_TFDIB_CTRL0_REG(_chnl) (FH49_TFDIB_LOWER_BOUND + 0x8 * (_chnl)) +#define FH49_TFDIB_CTRL1_REG(_chnl) (FH49_TFDIB_LOWER_BOUND + 0x8 * (_chnl) + 0x4) + +/** + * Transmit DMA Channel Control/Status Registers (TCSR) + * + * 4965 has one configuration register for each of 8 Tx DMA/FIFO channels + * supported in hardware (don't confuse these with the 16 Tx queues in DRAM, + * which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes. + * + * To use a Tx DMA channel, driver must initialize its + * FH49_TCSR_CHNL_TX_CONFIG_REG(chnl) with: + * + * FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | + * FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL + * + * All other bits should be 0. + * + * Bit fields: + * 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame, + * '10' operate normally + * 29- 4: Reserved, set to "0" + * 3: Enable internal DMA requests (1, normal operation), disable (0) + * 2- 0: Reserved, set to "0" + */ +#define FH49_TCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xD00) +#define FH49_TCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xE60) + +/* Find Control/Status reg for given Tx DMA/FIFO channel */ +#define FH49_TCSR_CHNL_NUM (7) +#define FH50_TCSR_CHNL_NUM (8) + +/* TCSR: tx_config register values */ +#define FH49_TCSR_CHNL_TX_CONFIG_REG(_chnl) \ + (FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl)) +#define FH49_TCSR_CHNL_TX_CREDIT_REG(_chnl) \ + (FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x4) +#define FH49_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \ + (FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x8) + +#define FH49_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRV (0x00000001) + +#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE (0x00000000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE (0x00000008) + +#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT (0x00000000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD (0x00100000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000) + +#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD (0x00400000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD (0x00800000) + +#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000) +#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000) + +#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY (0x00000000) +#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT (0x00002000) +#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00000003) + +#define FH49_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM (20) +#define FH49_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX (12) + +/** + * Tx Shared Status Registers (TSSR) + * + * After stopping Tx DMA channel (writing 0 to + * FH49_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll + * FH49_TSSR_TX_STATUS_REG until selected Tx channel is idle + * (channel's buffers empty | no pending requests). + * + * Bit fields: + * 31-24: 1 = Channel buffers empty (channel 7:0) + * 23-16: 1 = No pending requests (channel 7:0) + */ +#define FH49_TSSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xEA0) +#define FH49_TSSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xEC0) + +#define FH49_TSSR_TX_STATUS_REG (FH49_TSSR_LOWER_BOUND + 0x010) + +/** + * Bit fields for TSSR(Tx Shared Status & Control) error status register: + * 31: Indicates an address error when accessed to internal memory + * uCode/driver must write "1" in order to clear this flag + * 30: Indicates that Host did not send the expected number of dwords to FH + * uCode/driver must write "1" in order to clear this flag + * 16-9:Each status bit is for one channel. Indicates that an (Error) ActDMA + * command was received from the scheduler while the TRB was already full + * with previous command + * uCode/driver must write "1" in order to clear this flag + * 7-0: Each status bit indicates a channel's TxCredit error. When an error + * bit is set, it indicates that the FH has received a full indication + * from the RTC TxFIFO and the current value of the TxCredit counter was + * not equal to zero. This mean that the credit mechanism was not + * synchronized to the TxFIFO status + * uCode/driver must write "1" in order to clear this flag + */ +#define FH49_TSSR_TX_ERROR_REG (FH49_TSSR_LOWER_BOUND + 0x018) + +#define FH49_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) ((1 << (_chnl)) << 16) + +/* Tx service channels */ +#define FH49_SRVC_CHNL (9) +#define FH49_SRVC_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x9C8) +#define FH49_SRVC_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0x9D0) +#define FH49_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \ + (FH49_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4) + +#define FH49_TX_CHICKEN_BITS_REG (FH49_MEM_LOWER_BOUND + 0xE98) +/* Instruct FH to increment the retry count of a packet when + * it is brought from the memory to TX-FIFO + */ +#define FH49_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN (0x00000002) + +/* Keep Warm Size */ +#define IL_KW_SIZE 0x1000 /* 4k */ + +#endif /* __il_4965_h__ */ diff --git a/drivers/net/wireless/iwlegacy/Kconfig b/drivers/net/wireless/iwlegacy/Kconfig index aef65cd47661..05bd375cb845 100644 --- a/drivers/net/wireless/iwlegacy/Kconfig +++ b/drivers/net/wireless/iwlegacy/Kconfig @@ -1,4 +1,4 @@ -config IWLWIFI_LEGACY +config IWLEGACY tristate select FW_LOADER select NEW_LEDS @@ -7,13 +7,13 @@ config IWLWIFI_LEGACY select MAC80211_LEDS menu "Debugging Options" - depends on IWLWIFI_LEGACY + depends on IWLEGACY -config IWLWIFI_LEGACY_DEBUG - bool "Enable full debugging output in 4965 and 3945 drivers" - depends on IWLWIFI_LEGACY +config IWLEGACY_DEBUG + bool "Enable full debugging output in iwlegacy (iwl 3945/4965) drivers" + depends on IWLEGACY ---help--- - This option will enable debug tracing output for the iwlwifilegacy + This option will enable debug tracing output for the iwlegacy drivers. This will result in the kernel module being ~100k larger. You can @@ -29,43 +29,26 @@ config IWLWIFI_LEGACY_DEBUG % echo 0x43fff > /sys/class/net/wlan0/device/debug_level You can find the list of debug mask values in: - drivers/net/wireless/iwlwifilegacy/iwl-debug.h + drivers/net/wireless/iwlegacy/common.h If this is your first time using this driver, you should say Y here as the debug information can assist others in helping you resolve any problems you may encounter. -config IWLWIFI_LEGACY_DEBUGFS - bool "4965 and 3945 debugfs support" - depends on IWLWIFI_LEGACY && MAC80211_DEBUGFS +config IWLEGACY_DEBUGFS + bool "iwlegacy (iwl 3945/4965) debugfs support" + depends on IWLEGACY && MAC80211_DEBUGFS ---help--- - Enable creation of debugfs files for the iwlwifilegacy drivers. This + Enable creation of debugfs files for the iwlegacy drivers. This is a low-impact option that allows getting insight into the driver's state at runtime. -config IWLWIFI_LEGACY_DEVICE_TRACING - bool "iwlwifilegacy legacy device access tracing" - depends on IWLWIFI_LEGACY - depends on EVENT_TRACING - help - Say Y here to trace all commands, including TX frames and IO - accesses, sent to the device. If you say yes, iwlwifilegacy will - register with the ftrace framework for event tracing and dump - all this information to the ringbuffer, you may need to - increase the ringbuffer size. See the ftrace documentation - for more information. - - When tracing is not enabled, this option still has some - (though rather small) overhead. - - If unsure, say Y so we can help you better when problems - occur. endmenu config IWL4965 tristate "Intel Wireless WiFi 4965AGN (iwl4965)" depends on PCI && MAC80211 - select IWLWIFI_LEGACY + select IWLEGACY ---help--- This option enables support for @@ -93,7 +76,7 @@ config IWL4965 config IWL3945 tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)" depends on PCI && MAC80211 - select IWLWIFI_LEGACY + select IWLEGACY ---help--- Select to build the driver supporting the: diff --git a/drivers/net/wireless/iwlegacy/Makefile b/drivers/net/wireless/iwlegacy/Makefile index d56aeb38c211..c985a01a0731 100644 --- a/drivers/net/wireless/iwlegacy/Makefile +++ b/drivers/net/wireless/iwlegacy/Makefile @@ -1,25 +1,17 @@ -obj-$(CONFIG_IWLWIFI_LEGACY) += iwl-legacy.o -iwl-legacy-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o -iwl-legacy-objs += iwl-rx.o iwl-tx.o iwl-sta.o -iwl-legacy-objs += iwl-scan.o iwl-led.o -iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-debugfs.o -iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING) += iwl-devtrace.o +obj-$(CONFIG_IWLEGACY) += iwlegacy.o +iwlegacy-objs := common.o +iwlegacy-$(CONFIG_IWLEGACY_DEBUGFS) += debug.o -iwl-legacy-objs += $(iwl-legacy-m) - -CFLAGS_iwl-devtrace.o := -I$(src) +iwlegacy-objs += $(iwlegacy-m) # 4965 obj-$(CONFIG_IWL4965) += iwl4965.o -iwl4965-objs := iwl-4965.o iwl4965-base.o iwl-4965-rs.o iwl-4965-led.o -iwl4965-objs += iwl-4965-ucode.o iwl-4965-tx.o -iwl4965-objs += iwl-4965-lib.o iwl-4965-rx.o iwl-4965-calib.o -iwl4965-objs += iwl-4965-sta.o iwl-4965-eeprom.o -iwl4965-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-4965-debugfs.o +iwl4965-objs := 4965.o 4965-mac.o 4965-rs.o 4965-calib.o +iwl4965-$(CONFIG_IWLEGACY_DEBUGFS) += 4965-debug.o # 3945 obj-$(CONFIG_IWL3945) += iwl3945.o -iwl3945-objs := iwl3945-base.o iwl-3945.o iwl-3945-rs.o iwl-3945-led.o -iwl3945-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-3945-debugfs.o +iwl3945-objs := 3945-mac.o 3945.o 3945-rs.o +iwl3945-$(CONFIG_IWLEGACY_DEBUGFS) += 3945-debug.o ccflags-y += -D__CHECK_ENDIAN__ diff --git a/drivers/net/wireless/iwlegacy/iwl-commands.h b/drivers/net/wireless/iwlegacy/commands.h index 89904054473f..25dd7d28d022 100644 --- a/drivers/net/wireless/iwlegacy/iwl-commands.h +++ b/drivers/net/wireless/iwlegacy/commands.h @@ -60,100 +60,96 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ -/* - * Please use this file (iwl-commands.h) only for uCode API definitions. - * Please use iwl-xxxx-hw.h for hardware-related definitions. - * Please use iwl-dev.h for driver implementation definitions. - */ -#ifndef __iwl_legacy_commands_h__ -#define __iwl_legacy_commands_h__ +#ifndef __il_commands_h__ +#define __il_commands_h__ -struct iwl_priv; +#include <linux/ieee80211.h> -/* uCode version contains 4 values: Major/Minor/API/Serial */ -#define IWL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24) -#define IWL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16) -#define IWL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8) -#define IWL_UCODE_SERIAL(ver) ((ver) & 0x000000FF) +struct il_priv; +/* uCode version contains 4 values: Major/Minor/API/Serial */ +#define IL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24) +#define IL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16) +#define IL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8) +#define IL_UCODE_SERIAL(ver) ((ver) & 0x000000FF) /* Tx rates */ -#define IWL_CCK_RATES 4 -#define IWL_OFDM_RATES 8 -#define IWL_MAX_RATES (IWL_CCK_RATES + IWL_OFDM_RATES) +#define IL_CCK_RATES 4 +#define IL_OFDM_RATES 8 +#define IL_MAX_RATES (IL_CCK_RATES + IL_OFDM_RATES) enum { - REPLY_ALIVE = 0x1, - REPLY_ERROR = 0x2, + N_ALIVE = 0x1, + N_ERROR = 0x2, /* RXON and QOS commands */ - REPLY_RXON = 0x10, - REPLY_RXON_ASSOC = 0x11, - REPLY_QOS_PARAM = 0x13, - REPLY_RXON_TIMING = 0x14, + C_RXON = 0x10, + C_RXON_ASSOC = 0x11, + C_QOS_PARAM = 0x13, + C_RXON_TIMING = 0x14, /* Multi-Station support */ - REPLY_ADD_STA = 0x18, - REPLY_REMOVE_STA = 0x19, + C_ADD_STA = 0x18, + C_REM_STA = 0x19, /* Security */ - REPLY_WEPKEY = 0x20, + C_WEPKEY = 0x20, /* RX, TX, LEDs */ - REPLY_3945_RX = 0x1b, /* 3945 only */ - REPLY_TX = 0x1c, - REPLY_RATE_SCALE = 0x47, /* 3945 only */ - REPLY_LEDS_CMD = 0x48, - REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 and up */ + N_3945_RX = 0x1b, /* 3945 only */ + C_TX = 0x1c, + C_RATE_SCALE = 0x47, /* 3945 only */ + C_LEDS = 0x48, + C_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 */ /* 802.11h related */ - REPLY_CHANNEL_SWITCH = 0x72, - CHANNEL_SWITCH_NOTIFICATION = 0x73, - REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74, - SPECTRUM_MEASURE_NOTIFICATION = 0x75, + C_CHANNEL_SWITCH = 0x72, + N_CHANNEL_SWITCH = 0x73, + C_SPECTRUM_MEASUREMENT = 0x74, + N_SPECTRUM_MEASUREMENT = 0x75, /* Power Management */ - POWER_TABLE_CMD = 0x77, - PM_SLEEP_NOTIFICATION = 0x7A, - PM_DEBUG_STATISTIC_NOTIFIC = 0x7B, + C_POWER_TBL = 0x77, + N_PM_SLEEP = 0x7A, + N_PM_DEBUG_STATS = 0x7B, /* Scan commands and notifications */ - REPLY_SCAN_CMD = 0x80, - REPLY_SCAN_ABORT_CMD = 0x81, - SCAN_START_NOTIFICATION = 0x82, - SCAN_RESULTS_NOTIFICATION = 0x83, - SCAN_COMPLETE_NOTIFICATION = 0x84, + C_SCAN = 0x80, + C_SCAN_ABORT = 0x81, + N_SCAN_START = 0x82, + N_SCAN_RESULTS = 0x83, + N_SCAN_COMPLETE = 0x84, /* IBSS/AP commands */ - BEACON_NOTIFICATION = 0x90, - REPLY_TX_BEACON = 0x91, + N_BEACON = 0x90, + C_TX_BEACON = 0x91, /* Miscellaneous commands */ - REPLY_TX_PWR_TABLE_CMD = 0x97, + C_TX_PWR_TBL = 0x97, /* Bluetooth device coexistence config command */ - REPLY_BT_CONFIG = 0x9b, + C_BT_CONFIG = 0x9b, /* Statistics */ - REPLY_STATISTICS_CMD = 0x9c, - STATISTICS_NOTIFICATION = 0x9d, + C_STATS = 0x9c, + N_STATS = 0x9d, /* RF-KILL commands and notifications */ - CARD_STATE_NOTIFICATION = 0xa1, + N_CARD_STATE = 0xa1, /* Missed beacons notification */ - MISSED_BEACONS_NOTIFICATION = 0xa2, + N_MISSED_BEACONS = 0xa2, - REPLY_CT_KILL_CONFIG_CMD = 0xa4, - SENSITIVITY_CMD = 0xa8, - REPLY_PHY_CALIBRATION_CMD = 0xb0, - REPLY_RX_PHY_CMD = 0xc0, - REPLY_RX_MPDU_CMD = 0xc1, - REPLY_RX = 0xc3, - REPLY_COMPRESSED_BA = 0xc5, + C_CT_KILL_CONFIG = 0xa4, + C_SENSITIVITY = 0xa8, + C_PHY_CALIBRATION = 0xb0, + N_RX_PHY = 0xc0, + N_RX_MPDU = 0xc1, + N_RX = 0xc3, + N_COMPRESSED_BA = 0xc5, - REPLY_MAX = 0xff + IL_CN_MAX = 0xff }; /****************************************************************************** @@ -163,25 +159,25 @@ enum { * *****************************************************************************/ -/* iwl_cmd_header flags value */ -#define IWL_CMD_FAILED_MSK 0x40 +/* il_cmd_header flags value */ +#define IL_CMD_FAILED_MSK 0x40 #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) -#define SEQ_TO_INDEX(s) ((s) & 0xff) -#define INDEX_TO_SEQ(i) ((i) & 0xff) +#define SEQ_TO_IDX(s) ((s) & 0xff) +#define IDX_TO_SEQ(i) ((i) & 0xff) #define SEQ_HUGE_FRAME cpu_to_le16(0x4000) #define SEQ_RX_FRAME cpu_to_le16(0x8000) /** - * struct iwl_cmd_header + * struct il_cmd_header * * This header format appears in the beginning of each command sent from the * driver, and each response/notification received from uCode. */ -struct iwl_cmd_header { - u8 cmd; /* Command ID: REPLY_RXON, etc. */ - u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ +struct il_cmd_header { + u8 cmd; /* Command ID: C_RXON, etc. */ + u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ /* * The driver sets up the sequence number to values of its choosing. * uCode does not use this value, but passes it back to the driver @@ -192,29 +188,28 @@ struct iwl_cmd_header { * There is one exception: uCode sets bit 15 when it originates * the response/notification, i.e. when the response/notification * is not a direct response to a command sent by the driver. For - * example, uCode issues REPLY_3945_RX when it sends a received frame + * example, uCode issues N_3945_RX when it sends a received frame * to the driver; it is not a direct response to any driver command. * * The Linux driver uses the following format: * - * 0:7 tfd index - position within TX queue - * 8:12 TX queue id - * 13 reserved - * 14 huge - driver sets this to indicate command is in the - * 'huge' storage at the end of the command buffers - * 15 unsolicited RX or uCode-originated notification - */ + * 0:7 tfd idx - position within TX queue + * 8:12 TX queue id + * 13 reserved + * 14 huge - driver sets this to indicate command is in the + * 'huge' storage at the end of the command buffers + * 15 unsolicited RX or uCode-originated notification + */ __le16 sequence; /* command or response/notification data follows immediately */ u8 data[0]; } __packed; - /** - * struct iwl3945_tx_power + * struct il3945_tx_power * - * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_SCAN_CMD, REPLY_CHANNEL_SWITCH + * Used in C_TX_PWR_TBL, C_SCAN, C_CHANNEL_SWITCH * * Each entry contains two values: * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained @@ -223,21 +218,21 @@ struct iwl_cmd_header { * 2) Radio gain. This sets the analog gain of the radio Tx path. * It is a coarser setting, and behaves in a logarithmic (dB) fashion. * - * Driver obtains values from struct iwl3945_tx_power power_gain_table[][]. + * Driver obtains values from struct il3945_tx_power power_gain_table[][]. */ -struct iwl3945_tx_power { +struct il3945_tx_power { u8 tx_gain; /* gain for analog radio */ u8 dsp_atten; /* gain for DSP */ } __packed; /** - * struct iwl3945_power_per_rate + * struct il3945_power_per_rate * - * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH + * Used in C_TX_PWR_TBL, C_CHANNEL_SWITCH */ -struct iwl3945_power_per_rate { +struct il3945_power_per_rate { u8 rate; /* plcp */ - struct iwl3945_tx_power tpc; + struct il3945_tx_power tpc; u8 reserved; } __packed; @@ -245,10 +240,10 @@ struct iwl3945_power_per_rate { * iwl4965 rate_n_flags bit fields * * rate_n_flags format is used in following iwl4965 commands: - * REPLY_RX (response only) - * REPLY_RX_MPDU (response only) - * REPLY_TX (both command and response) - * REPLY_TX_LINK_QUALITY_CMD + * N_RX (response only) + * N_RX_MPDU (response only) + * C_TX (both command and response) + * C_TX_LINK_QUALITY_CMD * * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"): * 2-0: 0) 6 Mbps @@ -326,17 +321,17 @@ struct iwl3945_power_per_rate { #define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK) #define RATE_ANT_NUM 3 -#define POWER_TABLE_NUM_ENTRIES 33 -#define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32 -#define POWER_TABLE_CCK_ENTRY 32 +#define POWER_TBL_NUM_ENTRIES 33 +#define POWER_TBL_NUM_HT_OFDM_ENTRIES 32 +#define POWER_TBL_CCK_ENTRY 32 -#define IWL_PWR_NUM_HT_OFDM_ENTRIES 24 -#define IWL_PWR_CCK_ENTRIES 2 +#define IL_PWR_NUM_HT_OFDM_ENTRIES 24 +#define IL_PWR_CCK_ENTRIES 2 /** - * union iwl4965_tx_power_dual_stream + * union il4965_tx_power_dual_stream * - * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH + * Host format used for C_TX_PWR_TBL, C_CHANNEL_SWITCH * Use __le32 version (struct tx_power_dual_stream) when building command. * * Driver provides radio gain and DSP attenuation settings to device in pairs, @@ -347,9 +342,9 @@ struct iwl3945_power_per_rate { * For MIMO rates, one value may be different from the other, * in order to balance the Tx output between the two transmitters. * - * See more details in doc for TXPOWER in iwl-4965-hw.h. + * See more details in doc for TXPOWER in 4965.h. */ -union iwl4965_tx_power_dual_stream { +union il4965_tx_power_dual_stream { struct { u8 radio_tx_gain[2]; u8 dsp_predis_atten[2]; @@ -360,21 +355,21 @@ union iwl4965_tx_power_dual_stream { /** * struct tx_power_dual_stream * - * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH + * Table entries in C_TX_PWR_TBL, C_CHANNEL_SWITCH * - * Same format as iwl_tx_power_dual_stream, but __le32 + * Same format as il_tx_power_dual_stream, but __le32 */ struct tx_power_dual_stream { __le32 dw; } __packed; /** - * struct iwl4965_tx_power_db + * struct il4965_tx_power_db * - * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH + * Entire table within C_TX_PWR_TBL, C_CHANNEL_SWITCH */ -struct iwl4965_tx_power_db { - struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES]; +struct il4965_tx_power_db { + struct tx_power_dual_stream power_tbl[POWER_TBL_NUM_ENTRIES]; } __packed; /****************************************************************************** @@ -387,7 +382,7 @@ struct iwl4965_tx_power_db { #define INITIALIZE_SUBTYPE (9) /* - * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command) + * ("Initialize") N_ALIVE = 0x1 (response only, not a command) * * uCode issues this "initialize alive" notification once the initialization * uCode image has completed its work, and is ready to load the runtime image. @@ -410,7 +405,7 @@ struct iwl4965_tx_power_db { * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation, * for each of 5 frequency ranges. */ -struct iwl_init_alive_resp { +struct il_init_alive_resp { u8 ucode_minor; u8 ucode_major; __le16 reserved1; @@ -433,9 +428,8 @@ struct iwl_init_alive_resp { * 2 Tx chains */ } __packed; - /** - * REPLY_ALIVE = 0x1 (response only, not a command) + * N_ALIVE = 0x1 (response only, not a command) * * uCode issues this "alive" notification once the runtime image is ready * to receive commands from the driver. This is the *second* "alive" @@ -454,7 +448,7 @@ struct iwl_init_alive_resp { * __le32 log_size; log capacity (in number of entries) * __le32 type; (1) timestamp with each entry, (0) no timestamp * __le32 wraps; # times uCode has wrapped to top of circular buffer - * __le32 write_index; next circular buffer entry that uCode would fill + * __le32 write_idx; next circular buffer entry that uCode would fill * * The header is followed by the circular buffer of log entries. Entries * with timestamps have the following format: @@ -511,13 +505,13 @@ struct iwl_init_alive_resp { * The Linux driver can print both logs to the system log when a uCode error * occurs. */ -struct iwl_alive_resp { +struct il_alive_resp { u8 ucode_minor; u8 ucode_major; __le16 reserved1; u8 sw_rev[8]; u8 ver_type; - u8 ver_subtype; /* not "9" for runtime alive */ + u8 ver_subtype; /* not "9" for runtime alive */ __le16 reserved2; __le32 log_event_table_ptr; /* SRAM address for event log */ __le32 error_event_table_ptr; /* SRAM address for error log */ @@ -526,9 +520,9 @@ struct iwl_alive_resp { } __packed; /* - * REPLY_ERROR = 0x2 (response only, not a command) + * N_ERROR = 0x2 (response only, not a command) */ -struct iwl_error_resp { +struct il_error_resp { __le32 error_type; u8 cmd_id; u8 reserved1; @@ -554,7 +548,6 @@ enum { RXON_DEV_TYPE_SNIFFER = 6, }; - #define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0) #define RXON_RX_CHAIN_DRIVER_FORCE_POS (0) #define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1) @@ -593,7 +586,6 @@ enum { * (according to ON_AIR deassertion) */ #define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15) - /* HT flags */ #define RXON_FLG_CTRL_CHANNEL_LOC_POS (22) #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22) @@ -640,7 +632,7 @@ enum { #define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6) /** - * REPLY_RXON = 0x10 (command, has simple generic response) + * C_RXON = 0x10 (command, has simple generic response) * * RXON tunes the radio tuner to a service channel, and sets up a number * of parameters that are used primarily for Rx, but also for Tx operations. @@ -653,11 +645,11 @@ enum { * channel. * * NOTE: All RXONs wipe clean the internal txpower table. Driver must - * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10), + * issue a new C_TX_PWR_TBL after each C_RXON (0x10), * regardless of whether RXON_FILTER_ASSOC_MSK is set. */ -struct iwl3945_rxon_cmd { +struct il3945_rxon_cmd { u8 node_addr[6]; __le16 reserved1; u8 bssid_addr[6]; @@ -676,7 +668,7 @@ struct iwl3945_rxon_cmd { __le16 reserved5; } __packed; -struct iwl4965_rxon_cmd { +struct il4965_rxon_cmd { u8 node_addr[6]; __le16 reserved1; u8 bssid_addr[6]; @@ -699,7 +691,7 @@ struct iwl4965_rxon_cmd { /* Create a common rxon cmd which will be typecast into the 3945 or 4965 * specific rxon cmd, depending on where it is called from. */ -struct iwl_legacy_rxon_cmd { +struct il_rxon_cmd { u8 node_addr[6]; __le16 reserved1; u8 bssid_addr[6]; @@ -721,11 +713,10 @@ struct iwl_legacy_rxon_cmd { u8 reserved5; } __packed; - /* - * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response) + * C_RXON_ASSOC = 0x11 (command, has simple generic response) */ -struct iwl3945_rxon_assoc_cmd { +struct il3945_rxon_assoc_cmd { __le32 flags; __le32 filter_flags; u8 ofdm_basic_rates; @@ -733,7 +724,7 @@ struct iwl3945_rxon_assoc_cmd { __le16 reserved; } __packed; -struct iwl4965_rxon_assoc_cmd { +struct il4965_rxon_assoc_cmd { __le32 flags; __le32 filter_flags; u8 ofdm_basic_rates; @@ -744,17 +735,17 @@ struct iwl4965_rxon_assoc_cmd { __le16 reserved; } __packed; -#define IWL_CONN_MAX_LISTEN_INTERVAL 10 -#define IWL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */ -#define IWL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */ +#define IL_CONN_MAX_LISTEN_INTERVAL 10 +#define IL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */ +#define IL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */ /* - * REPLY_RXON_TIMING = 0x14 (command, has simple generic response) + * C_RXON_TIMING = 0x14 (command, has simple generic response) */ -struct iwl_rxon_time_cmd { +struct il_rxon_time_cmd { __le64 timestamp; __le16 beacon_interval; - __le16 atim_window; + __le16 atim_win; __le32 beacon_init_val; __le16 listen_interval; u8 dtim_period; @@ -762,32 +753,32 @@ struct iwl_rxon_time_cmd { } __packed; /* - * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response) + * C_CHANNEL_SWITCH = 0x72 (command, has simple generic response) */ -struct iwl3945_channel_switch_cmd { +struct il3945_channel_switch_cmd { u8 band; u8 expect_beacon; __le16 channel; __le32 rxon_flags; __le32 rxon_filter_flags; __le32 switch_time; - struct iwl3945_power_per_rate power[IWL_MAX_RATES]; + struct il3945_power_per_rate power[IL_MAX_RATES]; } __packed; -struct iwl4965_channel_switch_cmd { +struct il4965_channel_switch_cmd { u8 band; u8 expect_beacon; __le16 channel; __le32 rxon_flags; __le32 rxon_filter_flags; __le32 switch_time; - struct iwl4965_tx_power_db tx_power; + struct il4965_tx_power_db tx_power; } __packed; /* - * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command) + * N_CHANNEL_SWITCH = 0x73 (notification only, not a command) */ -struct iwl_csa_notification { +struct il_csa_notification { __le16 band; __le16 channel; __le32 status; /* 0 - OK, 1 - fail */ @@ -800,22 +791,22 @@ struct iwl_csa_notification { *****************************************************************************/ /** - * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM - * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd + * struct il_ac_qos -- QOS timing params for C_QOS_PARAM + * One for each of 4 EDCA access categories in struct il_qosparam_cmd * - * @cw_min: Contention window, start value in numbers of slots. + * @cw_min: Contention win, start value in numbers of slots. * Should be a power-of-2, minus 1. Device's default is 0x0f. - * @cw_max: Contention window, max value in numbers of slots. + * @cw_max: Contention win, max value in numbers of slots. * Should be a power-of-2, minus 1. Device's default is 0x3f. * @aifsn: Number of slots in Arbitration Interframe Space (before * performing random backoff timing prior to Tx). Device default 1. * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0. * - * Device will automatically increase contention window by (2*CW) + 1 for each + * Device will automatically increase contention win by (2*CW) + 1 for each * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW * value, to cap the CW value. */ -struct iwl_ac_qos { +struct il_ac_qos { __le16 cw_min; __le16 cw_max; u8 aifsn; @@ -832,14 +823,14 @@ struct iwl_ac_qos { #define AC_NUM 4 /* - * REPLY_QOS_PARAM = 0x13 (command, has simple generic response) + * C_QOS_PARAM = 0x13 (command, has simple generic response) * * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs * 0: Background, 1: Best Effort, 2: Video, 3: Voice. */ -struct iwl_qosparam_cmd { +struct il_qosparam_cmd { __le32 qos_flags; - struct iwl_ac_qos ac[AC_NUM]; + struct il_ac_qos ac[AC_NUM]; } __packed; /****************************************************************************** @@ -852,15 +843,15 @@ struct iwl_qosparam_cmd { */ /* Special, dedicated locations within device's station table */ -#define IWL_AP_ID 0 -#define IWL_STA_ID 2 -#define IWL3945_BROADCAST_ID 24 -#define IWL3945_STATION_COUNT 25 -#define IWL4965_BROADCAST_ID 31 -#define IWL4965_STATION_COUNT 32 +#define IL_AP_ID 0 +#define IL_STA_ID 2 +#define IL3945_BROADCAST_ID 24 +#define IL3945_STATION_COUNT 25 +#define IL4965_BROADCAST_ID 31 +#define IL4965_STATION_COUNT 32 -#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/ -#define IWL_INVALID_STATION 255 +#define IL_STATION_COUNT 32 /* MAX(3945,4965) */ +#define IL_INVALID_STATION 255 #define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2) #define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8) @@ -901,11 +892,11 @@ struct iwl_qosparam_cmd { #define STA_MODIFY_DELBA_TID_MSK 0x10 #define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20 -/* Receiver address (actually, Rx station's index into station table), +/* Receiver address (actually, Rx station's idx into station table), * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */ #define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid)) -struct iwl4965_keyinfo { +struct il4965_keyinfo { __le16 key_flags; u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */ u8 reserved1; @@ -918,12 +909,12 @@ struct iwl4965_keyinfo { /** * struct sta_id_modify * @addr[ETH_ALEN]: station's MAC address - * @sta_id: index of station in uCode's station table + * @sta_id: idx of station in uCode's station table * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change * - * Driver selects unused table index when adding new station, - * or the index to a pre-existing station entry when modifying that station. - * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP). + * Driver selects unused table idx when adding new station, + * or the idx to a pre-existing station entry when modifying that station. + * Some idxes have special purposes (IL_AP_ID, idx 0, is for AP). * * modify_mask flags select which parameters to modify vs. leave alone. */ @@ -936,15 +927,15 @@ struct sta_id_modify { } __packed; /* - * REPLY_ADD_STA = 0x18 (command) + * C_ADD_STA = 0x18 (command) * * The device contains an internal table of per-station information, * with info on security keys, aggregation parameters, and Tx rates for * initial Tx attempt and any retries (4965 devices uses - * REPLY_TX_LINK_QUALITY_CMD, - * 3945 uses REPLY_RATE_SCALE to set up rate tables). + * C_TX_LINK_QUALITY_CMD, + * 3945 uses C_RATE_SCALE to set up rate tables). * - * REPLY_ADD_STA sets up the table entry for one station, either creating + * C_ADD_STA sets up the table entry for one station, either creating * a new entry, or modifying a pre-existing one. * * NOTE: RXON command (without "associated" bit set) wipes the station table @@ -954,20 +945,20 @@ struct sta_id_modify { * their own txpower/rate setup data). * * When getting started on a new channel, driver must set up the - * IWL_BROADCAST_ID entry (last entry in the table). For a client + * IL_BROADCAST_ID entry (last entry in the table). For a client * station in a BSS, once an AP is selected, driver sets up the AP STA - * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP + * in the IL_AP_ID entry (1st entry in the table). BROADCAST and AP * are all that are needed for a BSS client station. If the device is * used as AP, or in an IBSS network, driver must set up station table - * entries for all STAs in network, starting with index IWL_STA_ID. + * entries for all STAs in network, starting with idx IL_STA_ID. */ -struct iwl3945_addsta_cmd { +struct il3945_addsta_cmd { u8 mode; /* 1: modify existing, 0: add new station */ u8 reserved[3]; struct sta_id_modify sta; - struct iwl4965_keyinfo key; - __le32 station_flags; /* STA_FLG_* */ + struct il4965_keyinfo key; + __le32 station_flags; /* STA_FLG_* */ __le32 station_flags_msk; /* STA_FLG_* */ /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) @@ -990,12 +981,12 @@ struct iwl3945_addsta_cmd { __le16 add_immediate_ba_ssn; } __packed; -struct iwl4965_addsta_cmd { +struct il4965_addsta_cmd { u8 mode; /* 1: modify existing, 0: add new station */ u8 reserved[3]; struct sta_id_modify sta; - struct iwl4965_keyinfo key; - __le32 station_flags; /* STA_FLG_* */ + struct il4965_keyinfo key; + __le32 station_flags; /* STA_FLG_* */ __le32 station_flags_msk; /* STA_FLG_* */ /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) @@ -1003,7 +994,7 @@ struct iwl4965_addsta_cmd { * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ __le16 tid_disable_tx; - __le16 reserved1; + __le16 reserved1; /* TID for which to add block-ack support. * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ @@ -1028,12 +1019,12 @@ struct iwl4965_addsta_cmd { } __packed; /* Wrapper struct for 3945 and 4965 addsta_cmd structures */ -struct iwl_legacy_addsta_cmd { +struct il_addsta_cmd { u8 mode; /* 1: modify existing, 0: add new station */ u8 reserved[3]; struct sta_id_modify sta; - struct iwl4965_keyinfo key; - __le32 station_flags; /* STA_FLG_* */ + struct il4965_keyinfo key; + __le32 station_flags; /* STA_FLG_* */ __le32 station_flags_msk; /* STA_FLG_* */ /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) @@ -1041,7 +1032,7 @@ struct iwl_legacy_addsta_cmd { * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ __le16 tid_disable_tx; - __le16 rate_n_flags; /* 3945 only */ + __le16 rate_n_flags; /* 3945 only */ /* TID for which to add block-ack support. * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ @@ -1065,51 +1056,50 @@ struct iwl_legacy_addsta_cmd { __le16 reserved2; } __packed; - #define ADD_STA_SUCCESS_MSK 0x1 -#define ADD_STA_NO_ROOM_IN_TABLE 0x2 +#define ADD_STA_NO_ROOM_IN_TBL 0x2 #define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4 #define ADD_STA_MODIFY_NON_EXIST_STA 0x8 /* - * REPLY_ADD_STA = 0x18 (response) + * C_ADD_STA = 0x18 (response) */ -struct iwl_add_sta_resp { - u8 status; /* ADD_STA_* */ +struct il_add_sta_resp { + u8 status; /* ADD_STA_* */ } __packed; #define REM_STA_SUCCESS_MSK 0x1 /* - * REPLY_REM_STA = 0x19 (response) + * C_REM_STA = 0x19 (response) */ -struct iwl_rem_sta_resp { +struct il_rem_sta_resp { u8 status; } __packed; /* - * REPLY_REM_STA = 0x19 (command) + * C_REM_STA = 0x19 (command) */ -struct iwl_rem_sta_cmd { - u8 num_sta; /* number of removed stations */ +struct il_rem_sta_cmd { + u8 num_sta; /* number of removed stations */ u8 reserved[3]; - u8 addr[ETH_ALEN]; /* MAC addr of the first station */ + u8 addr[ETH_ALEN]; /* MAC addr of the first station */ u8 reserved2[2]; } __packed; -#define IWL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0)) -#define IWL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1)) -#define IWL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2)) -#define IWL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3)) -#define IWL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00) +#define IL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0)) +#define IL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1)) +#define IL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2)) +#define IL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3)) +#define IL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00) -#define IWL_DROP_SINGLE 0 -#define IWL_DROP_SELECTED 1 -#define IWL_DROP_ALL 2 +#define IL_DROP_SINGLE 0 +#define IL_DROP_SELECTED 1 +#define IL_DROP_ALL 2 /* * REPLY_WEP_KEY = 0x20 */ -struct iwl_wep_key { - u8 key_index; +struct il_wep_key { + u8 key_idx; u8 key_offset; u8 reserved1[2]; u8 key_size; @@ -1117,12 +1107,12 @@ struct iwl_wep_key { u8 key[16]; } __packed; -struct iwl_wep_cmd { +struct il_wep_cmd { u8 num_keys; u8 global_key_type; u8 flags; u8 reserved; - struct iwl_wep_key key[0]; + struct il_wep_key key[0]; } __packed; #define WEP_KEY_WEP_TYPE 1 @@ -1168,8 +1158,7 @@ struct iwl_wep_cmd { #define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7) #define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800) - -struct iwl3945_rx_frame_stats { +struct il3945_rx_frame_stats { u8 phy_count; u8 id; u8 rssi; @@ -1179,7 +1168,7 @@ struct iwl3945_rx_frame_stats { u8 payload[0]; } __packed; -struct iwl3945_rx_frame_hdr { +struct il3945_rx_frame_hdr { __le16 channel; __le16 phy_flags; u8 reserved1; @@ -1188,73 +1177,71 @@ struct iwl3945_rx_frame_hdr { u8 payload[0]; } __packed; -struct iwl3945_rx_frame_end { +struct il3945_rx_frame_end { __le32 status; __le64 timestamp; __le32 beacon_timestamp; } __packed; /* - * REPLY_3945_RX = 0x1b (response only, not a command) + * N_3945_RX = 0x1b (response only, not a command) * * NOTE: DO NOT dereference from casts to this structure * It is provided only for calculating minimum data set size. * The actual offsets of the hdr and end are dynamic based on * stats.phy_count */ -struct iwl3945_rx_frame { - struct iwl3945_rx_frame_stats stats; - struct iwl3945_rx_frame_hdr hdr; - struct iwl3945_rx_frame_end end; +struct il3945_rx_frame { + struct il3945_rx_frame_stats stats; + struct il3945_rx_frame_hdr hdr; + struct il3945_rx_frame_end end; } __packed; -#define IWL39_RX_FRAME_SIZE (4 + sizeof(struct iwl3945_rx_frame)) +#define IL39_RX_FRAME_SIZE (4 + sizeof(struct il3945_rx_frame)) /* Fixed (non-configurable) rx data from phy */ -#define IWL49_RX_RES_PHY_CNT 14 -#define IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4) -#define IWL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70) -#define IWL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */ -#define IWL49_AGC_DB_POS (7) -struct iwl4965_rx_non_cfg_phy { +#define IL49_RX_RES_PHY_CNT 14 +#define IL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4) +#define IL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70) +#define IL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */ +#define IL49_AGC_DB_POS (7) +struct il4965_rx_non_cfg_phy { __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */ __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */ u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */ u8 pad[0]; } __packed; - /* - * REPLY_RX = 0xc3 (response only, not a command) + * N_RX = 0xc3 (response only, not a command) * Used only for legacy (non 11n) frames. */ -struct iwl_rx_phy_res { - u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */ +struct il_rx_phy_res { + u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */ u8 cfg_phy_cnt; /* configurable DSP phy data byte count */ u8 stat_id; /* configurable DSP phy data set ID */ u8 reserved1; __le64 timestamp; /* TSF at on air rise */ - __le32 beacon_time_stamp; /* beacon at on-air rise */ + __le32 beacon_time_stamp; /* beacon at on-air rise */ __le16 phy_flags; /* general phy flags: band, modulation, ... */ __le16 channel; /* channel number */ - u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */ + u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */ __le32 rate_n_flags; /* RATE_MCS_* */ __le16 byte_count; /* frame's byte-count */ __le16 frame_time; /* frame's time on the air */ } __packed; -struct iwl_rx_mpdu_res_start { +struct il_rx_mpdu_res_start { __le16 byte_count; __le16 reserved; } __packed; - /****************************************************************************** * (5) * Tx Commands & Responses: * - * Driver must place each REPLY_TX command into one of the prioritized Tx + * Driver must place each C_TX command into one of the prioritized Tx * queues in host DRAM, shared between driver and device (see comments for * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode * are preparing to transmit, the device pulls the Tx command over the PCI @@ -1264,18 +1251,18 @@ struct iwl_rx_mpdu_res_start { * uCode handles all timing and protocol related to control frames * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler * handle reception of block-acks; uCode updates the host driver via - * REPLY_COMPRESSED_BA. + * N_COMPRESSED_BA. * * uCode handles retrying Tx when an ACK is expected but not received. * This includes trying lower data rates than the one requested in the Tx - * command, as set up by the REPLY_RATE_SCALE (for 3945) or - * REPLY_TX_LINK_QUALITY_CMD (4965). + * command, as set up by the C_RATE_SCALE (for 3945) or + * C_TX_LINK_QUALITY_CMD (4965). * - * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD. + * Driver sets up transmit power for various rates via C_TX_PWR_TBL. * This command must be executed after every RXON command, before Tx can occur. *****************************************************************************/ -/* REPLY_TX Tx flags field */ +/* C_TX Tx flags field */ /* * 1: Use Request-To-Send protocol before this frame. @@ -1296,8 +1283,8 @@ struct iwl_rx_mpdu_res_start { #define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3) /* For 4965 devices: - * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD). - * Tx command's initial_rate_index indicates first rate to try; + * 1: Use rate scale table (see C_TX_LINK_QUALITY_CMD). + * Tx command's initial_rate_idx indicates first rate to try; * uCode walks through table for additional Tx attempts. * 0: Use Tx rate/MCS from Tx command's rate_n_flags field. * This rate will be used for all Tx attempts; it will not be scaled. */ @@ -1322,7 +1309,7 @@ struct iwl_rx_mpdu_res_start { /* 1: uCode overrides sequence control field in MAC header. * 0: Driver provides sequence control field in MAC header. * Set this for management frames, non-QOS data frames, non-unicast frames, - * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */ + * and also in Tx command embedded in C_SCAN for active scans. */ #define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13) /* 1: This frame is non-last MPDU; more fragments are coming. @@ -1349,7 +1336,6 @@ struct iwl_rx_mpdu_res_start { /* HCCA-AP - disable duration overwriting. */ #define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25) - /* * TX command security control */ @@ -1369,10 +1355,10 @@ struct iwl_rx_mpdu_res_start { #define TKIP_ICV_LEN 4 /* - * REPLY_TX = 0x1c (command) + * C_TX = 0x1c (command) */ -struct iwl3945_tx_cmd { +struct il3945_tx_cmd { /* * MPDU byte count: * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, @@ -1434,9 +1420,9 @@ struct iwl3945_tx_cmd { } __packed; /* - * REPLY_TX = 0x1c (response) + * C_TX = 0x1c (response) */ -struct iwl3945_tx_resp { +struct il3945_tx_resp { u8 failure_rts; u8 failure_frame; u8 bt_kill_count; @@ -1445,19 +1431,18 @@ struct iwl3945_tx_resp { __le32 status; /* TX status */ } __packed; - /* * 4965 uCode updates these Tx attempt count values in host DRAM. * Used for managing Tx retries when expecting block-acks. * Driver should set these fields to 0. */ -struct iwl_dram_scratch { +struct il_dram_scratch { u8 try_cnt; /* Tx attempts */ u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */ __le16 reserved; } __packed; -struct iwl_tx_cmd { +struct il_tx_cmd { /* * MPDU byte count: * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, @@ -1481,7 +1466,7 @@ struct iwl_tx_cmd { /* uCode may modify this field of the Tx command (in host DRAM!). * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */ - struct iwl_dram_scratch scratch; + struct il_dram_scratch scratch; /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */ __le32 rate_n_flags; /* RATE_MCS_* */ @@ -1493,13 +1478,13 @@ struct iwl_tx_cmd { u8 sec_ctl; /* TX_CMD_SEC_* */ /* - * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial + * Index into rate table (see C_TX_LINK_QUALITY_CMD) for initial * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for * data frames, this field may be used to selectively reduce initial * rate (via non-0 value) for special frames (e.g. management), while * still supporting rate scaling for all frames. */ - u8 initial_rate_index; + u8 initial_rate_idx; u8 reserved; u8 key[16]; __le16 next_frame_flags; @@ -1628,12 +1613,12 @@ enum { }; enum { - TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */ + TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */ TX_STATUS_DELAY_MSK = 0x00000040, TX_STATUS_ABORT_MSK = 0x00000080, TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */ TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */ - TX_RESERVED = 0x00780000, /* bits 19:22 */ + TX_RESERVED = 0x00780000, /* bits 19:22 */ TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */ TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */ }; @@ -1671,7 +1656,7 @@ enum { #define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000 /* - * REPLY_TX = 0x1c (response) + * C_TX = 0x1c (response) * * This response may be in one of two slightly different formats, indicated * by the frame_count field: @@ -1697,7 +1682,7 @@ struct agg_tx_status { __le16 sequence; } __packed; -struct iwl4965_tx_resp { +struct il4965_tx_resp { u8 frame_count; /* 1 no aggregation, >1 aggregation */ u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */ u8 failure_rts; /* # failures due to unsuccessful RTS */ @@ -1730,16 +1715,16 @@ struct iwl4965_tx_resp { */ union { __le32 status; - struct agg_tx_status agg_status[0]; /* for each agg frame */ + struct agg_tx_status agg_status[0]; /* for each agg frame */ } u; } __packed; /* - * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command) + * N_COMPRESSED_BA = 0xc5 (response only, not a command) * * Reports Block-Acknowledge from recipient station */ -struct iwl_compressed_ba_resp { +struct il_compressed_ba_resp { __le32 sta_addr_lo32; __le16 sta_addr_hi16; __le16 reserved; @@ -1754,30 +1739,29 @@ struct iwl_compressed_ba_resp { } __packed; /* - * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response) + * C_TX_PWR_TBL = 0x97 (command, has simple generic response) * - * See details under "TXPOWER" in iwl-4965-hw.h. + * See details under "TXPOWER" in 4965.h. */ -struct iwl3945_txpowertable_cmd { +struct il3945_txpowertable_cmd { u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ u8 reserved; __le16 channel; - struct iwl3945_power_per_rate power[IWL_MAX_RATES]; + struct il3945_power_per_rate power[IL_MAX_RATES]; } __packed; -struct iwl4965_txpowertable_cmd { +struct il4965_txpowertable_cmd { u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ u8 reserved; __le16 channel; - struct iwl4965_tx_power_db tx_power; + struct il4965_tx_power_db tx_power; } __packed; - /** - * struct iwl3945_rate_scaling_cmd - Rate Scaling Command & Response + * struct il3945_rate_scaling_cmd - Rate Scaling Command & Response * - * REPLY_RATE_SCALE = 0x47 (command, has simple generic response) + * C_RATE_SCALE = 0x47 (command, has simple generic response) * * NOTE: The table of rates passed to the uCode via the * RATE_SCALE command sets up the corresponding order of @@ -1786,22 +1770,21 @@ struct iwl4965_txpowertable_cmd { * * For example, if you set 9MB (PLCP 0x0f) as the first * rate in the rate table, the bit mask for that rate - * when passed through ofdm_basic_rates on the REPLY_RXON + * when passed through ofdm_basic_rates on the C_RXON * command would be bit 0 (1 << 0) */ -struct iwl3945_rate_scaling_info { +struct il3945_rate_scaling_info { __le16 rate_n_flags; u8 try_cnt; - u8 next_rate_index; + u8 next_rate_idx; } __packed; -struct iwl3945_rate_scaling_cmd { +struct il3945_rate_scaling_cmd { u8 table_id; u8 reserved[3]; - struct iwl3945_rate_scaling_info table[IWL_MAX_RATES]; + struct il3945_rate_scaling_info table[IL_MAX_RATES]; } __packed; - /*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */ #define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0) @@ -1816,28 +1799,27 @@ struct iwl3945_rate_scaling_cmd { #define LINK_QUAL_ANT_B_MSK (1 << 1) #define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK) - /** - * struct iwl_link_qual_general_params + * struct il_link_qual_general_params * - * Used in REPLY_TX_LINK_QUALITY_CMD + * Used in C_TX_LINK_QUALITY_CMD */ -struct iwl_link_qual_general_params { +struct il_link_qual_general_params { u8 flags; - /* No entries at or above this (driver chosen) index contain MIMO */ + /* No entries at or above this (driver chosen) idx contain MIMO */ u8 mimo_delimiter; /* Best single antenna to use for single stream (legacy, SISO). */ u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */ /* Best antennas to use for MIMO (unused for 4965, assumes both). */ - u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */ + u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */ /* * If driver needs to use different initial rates for different * EDCA QOS access categories (as implemented by tx fifos 0-3), - * this table will set that up, by indicating the indexes in the + * this table will set that up, by indicating the idxes in the * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start. * Otherwise, driver should set all entries to 0. * @@ -1845,10 +1827,10 @@ struct iwl_link_qual_general_params { * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3. */ - u8 start_rate_index[LINK_QUAL_AC_NUM]; + u8 start_rate_idx[LINK_QUAL_AC_NUM]; } __packed; -#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */ +#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */ #define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000) #define LINK_QUAL_AGG_TIME_LIMIT_MIN (100) @@ -1861,11 +1843,11 @@ struct iwl_link_qual_general_params { #define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0) /** - * struct iwl_link_qual_agg_params + * struct il_link_qual_agg_params * - * Used in REPLY_TX_LINK_QUALITY_CMD + * Used in C_TX_LINK_QUALITY_CMD */ -struct iwl_link_qual_agg_params { +struct il_link_qual_agg_params { /* *Maximum number of uSec in aggregation. @@ -1892,9 +1874,9 @@ struct iwl_link_qual_agg_params { } __packed; /* - * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response) + * C_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response) * - * For 4965 devices only; 3945 uses REPLY_RATE_SCALE. + * For 4965 devices only; 3945 uses C_RATE_SCALE. * * Each station in the 4965 device's internal station table has its own table * of 16 @@ -1903,13 +1885,13 @@ struct iwl_link_qual_agg_params { * one station. * * NOTE: Station must already be in 4965 device's station table. - * Use REPLY_ADD_STA. + * Use C_ADD_STA. * * The rate scaling procedures described below work well. Of course, other * procedures are possible, and may work better for particular environments. * * - * FILLING THE RATE TABLE + * FILLING THE RATE TBL * * Given a particular initial rate and mode, as determined by the rate * scaling algorithm described below, the Linux driver uses the following @@ -1948,13 +1930,13 @@ struct iwl_link_qual_agg_params { * speculative mode as the new current active mode. * * Each history set contains, separately for each possible rate, data for a - * sliding window of the 62 most recent tx attempts at that rate. The data + * sliding win of the 62 most recent tx attempts at that rate. The data * includes a shifting bitmap of success(1)/failure(0), and sums of successful * and attempted frames, from which the driver can additionally calculate a * success ratio (success / attempted) and number of failures - * (attempted - success), and control the size of the window (attempted). + * (attempted - success), and control the size of the win (attempted). * The driver uses the bit map to remove successes from the success sum, as - * the oldest tx attempts fall out of the window. + * the oldest tx attempts fall out of the win. * * When the 4965 device makes multiple tx attempts for a given frame, each * attempt might be at a different rate, and have different modulation @@ -1966,7 +1948,7 @@ struct iwl_link_qual_agg_params { * * When using block-ack (aggregation), all frames are transmitted at the same * rate, since there is no per-attempt acknowledgment from the destination - * station. The Tx response struct iwl_tx_resp indicates the Tx rate in + * station. The Tx response struct il_tx_resp indicates the Tx rate in * rate_n_flags field. After receiving a block-ack, the driver can update * history for the entire block all at once. * @@ -2016,8 +1998,8 @@ struct iwl_link_qual_agg_params { * good performance; higher rate is sure to have poorer success. * * 6) Re-evaluate the rate after each tx frame. If working with block- - * acknowledge, history and statistics may be calculated for the entire - * block (including prior history that fits within the history windows), + * acknowledge, history and stats may be calculated for the entire + * block (including prior history that fits within the history wins), * before re-evaluation. * * FINDING BEST STARTING MODULATION MODE: @@ -2079,22 +2061,22 @@ struct iwl_link_qual_agg_params { * legacy), and then repeat the search process. * */ -struct iwl_link_quality_cmd { +struct il_link_quality_cmd { /* Index of destination/recipient station in uCode's station table */ u8 sta_id; u8 reserved1; __le16 control; /* not used */ - struct iwl_link_qual_general_params general_params; - struct iwl_link_qual_agg_params agg_params; + struct il_link_qual_general_params general_params; + struct il_link_qual_agg_params agg_params; /* - * Rate info; when using rate-scaling, Tx command's initial_rate_index - * specifies 1st Tx rate attempted, via index into this table. + * Rate info; when using rate-scaling, Tx command's initial_rate_idx + * specifies 1st Tx rate attempted, via idx into this table. * 4965 devices works its way through table when retrying Tx. */ struct { - __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */ + __le32 rate_n_flags; /* RATE_MCS_*, RATE_* */ } rs_table[LINK_QUAL_MAX_RETRY_NUM]; __le32 reserved2; } __packed; @@ -2117,13 +2099,13 @@ struct iwl_link_quality_cmd { #define BT_MAX_KILL_DEF (0x5) /* - * REPLY_BT_CONFIG = 0x9b (command, has simple generic response) + * C_BT_CONFIG = 0x9b (command, has simple generic response) * * 3945 and 4965 devices support hardware handshake with Bluetooth device on * same platform. Bluetooth device alerts wireless device when it will Tx; * wireless device can delay or kill its own Tx to accommodate. */ -struct iwl_bt_cmd { +struct il_bt_cmd { u8 flags; u8 lead_time; u8 max_kill; @@ -2132,7 +2114,6 @@ struct iwl_bt_cmd { __le32 kill_cts_mask; } __packed; - /****************************************************************************** * (6) * Spectrum Management (802.11h) Commands, Responses, Notifications: @@ -2150,18 +2131,18 @@ struct iwl_bt_cmd { RXON_FILTER_ASSOC_MSK | \ RXON_FILTER_BCON_AWARE_MSK) -struct iwl_measure_channel { +struct il_measure_channel { __le32 duration; /* measurement duration in extended beacon * format */ u8 channel; /* channel to measure */ - u8 type; /* see enum iwl_measure_type */ + u8 type; /* see enum il_measure_type */ __le16 reserved; } __packed; /* - * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command) + * C_SPECTRUM_MEASUREMENT = 0x74 (command) */ -struct iwl_spectrum_cmd { +struct il_spectrum_cmd { __le16 len; /* number of bytes starting from token */ u8 token; /* token id */ u8 id; /* measurement id -- 0 or 1 */ @@ -2174,13 +2155,13 @@ struct iwl_spectrum_cmd { __le32 filter_flags; /* rxon filter flags */ __le16 channel_count; /* minimum 1, maximum 10 */ __le16 reserved3; - struct iwl_measure_channel channels[10]; + struct il_measure_channel channels[10]; } __packed; /* - * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response) + * C_SPECTRUM_MEASUREMENT = 0x74 (response) */ -struct iwl_spectrum_resp { +struct il_spectrum_resp { u8 token; u8 id; /* id of the prior command replaced, or 0xff */ __le16 status; /* 0 - command will be handled @@ -2188,57 +2169,57 @@ struct iwl_spectrum_resp { * measurement) */ } __packed; -enum iwl_measurement_state { - IWL_MEASUREMENT_START = 0, - IWL_MEASUREMENT_STOP = 1, +enum il_measurement_state { + IL_MEASUREMENT_START = 0, + IL_MEASUREMENT_STOP = 1, }; -enum iwl_measurement_status { - IWL_MEASUREMENT_OK = 0, - IWL_MEASUREMENT_CONCURRENT = 1, - IWL_MEASUREMENT_CSA_CONFLICT = 2, - IWL_MEASUREMENT_TGH_CONFLICT = 3, +enum il_measurement_status { + IL_MEASUREMENT_OK = 0, + IL_MEASUREMENT_CONCURRENT = 1, + IL_MEASUREMENT_CSA_CONFLICT = 2, + IL_MEASUREMENT_TGH_CONFLICT = 3, /* 4-5 reserved */ - IWL_MEASUREMENT_STOPPED = 6, - IWL_MEASUREMENT_TIMEOUT = 7, - IWL_MEASUREMENT_PERIODIC_FAILED = 8, + IL_MEASUREMENT_STOPPED = 6, + IL_MEASUREMENT_TIMEOUT = 7, + IL_MEASUREMENT_PERIODIC_FAILED = 8, }; #define NUM_ELEMENTS_IN_HISTOGRAM 8 -struct iwl_measurement_histogram { +struct il_measurement_histogram { __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */ __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */ } __packed; /* clear channel availability counters */ -struct iwl_measurement_cca_counters { +struct il_measurement_cca_counters { __le32 ofdm; __le32 cck; } __packed; -enum iwl_measure_type { - IWL_MEASURE_BASIC = (1 << 0), - IWL_MEASURE_CHANNEL_LOAD = (1 << 1), - IWL_MEASURE_HISTOGRAM_RPI = (1 << 2), - IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3), - IWL_MEASURE_FRAME = (1 << 4), +enum il_measure_type { + IL_MEASURE_BASIC = (1 << 0), + IL_MEASURE_CHANNEL_LOAD = (1 << 1), + IL_MEASURE_HISTOGRAM_RPI = (1 << 2), + IL_MEASURE_HISTOGRAM_NOISE = (1 << 3), + IL_MEASURE_FRAME = (1 << 4), /* bits 5:6 are reserved */ - IWL_MEASURE_IDLE = (1 << 7), + IL_MEASURE_IDLE = (1 << 7), }; /* - * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command) + * N_SPECTRUM_MEASUREMENT = 0x75 (notification only, not a command) */ -struct iwl_spectrum_notification { +struct il_spectrum_notification { u8 id; /* measurement id -- 0 or 1 */ u8 token; - u8 channel_index; /* index in measurement channel list */ + u8 channel_idx; /* idx in measurement channel list */ u8 state; /* 0 - start, 1 - stop */ __le32 start_time; /* lower 32-bits of TSF */ u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */ u8 channel; - u8 type; /* see enum iwl_measurement_type */ + u8 type; /* see enum il_measurement_type */ u8 reserved1; /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only * valid if applicable for measurement type requested. */ @@ -2248,9 +2229,9 @@ struct iwl_spectrum_notification { u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 - * unidentified */ u8 reserved2[3]; - struct iwl_measurement_histogram histogram; + struct il_measurement_histogram histogram; __le32 stop_time; /* lower 32-bits of TSF */ - __le32 status; /* see iwl_measurement_status */ + __le32 status; /* see il_measurement_status */ } __packed; /****************************************************************************** @@ -2260,10 +2241,10 @@ struct iwl_spectrum_notification { *****************************************************************************/ /** - * struct iwl_powertable_cmd - Power Table Command + * struct il_powertable_cmd - Power Table Command * @flags: See below: * - * POWER_TABLE_CMD = 0x77 (command, has simple generic response) + * C_POWER_TBL = 0x77 (command, has simple generic response) * * PM allow: * bit 0 - '0' Driver not allow power management @@ -2290,38 +2271,38 @@ struct iwl_spectrum_notification { * '10' force xtal sleep * '11' Illegal set * - * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then + * NOTE: if sleep_interval[SLEEP_INTRVL_TBL_SIZE-1] > DTIM period then * ucode assume sleep over DTIM is allowed and we don't need to wake up * for every DTIM. */ -#define IWL_POWER_VEC_SIZE 5 +#define IL_POWER_VEC_SIZE 5 -#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0)) -#define IWL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3)) +#define IL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0)) +#define IL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3)) -struct iwl3945_powertable_cmd { +struct il3945_powertable_cmd { __le16 flags; u8 reserved[2]; __le32 rx_data_timeout; __le32 tx_data_timeout; - __le32 sleep_interval[IWL_POWER_VEC_SIZE]; + __le32 sleep_interval[IL_POWER_VEC_SIZE]; } __packed; -struct iwl_powertable_cmd { +struct il_powertable_cmd { __le16 flags; - u8 keep_alive_seconds; /* 3945 reserved */ - u8 debug_flags; /* 3945 reserved */ + u8 keep_alive_seconds; /* 3945 reserved */ + u8 debug_flags; /* 3945 reserved */ __le32 rx_data_timeout; __le32 tx_data_timeout; - __le32 sleep_interval[IWL_POWER_VEC_SIZE]; + __le32 sleep_interval[IL_POWER_VEC_SIZE]; __le32 keep_alive_beacons; } __packed; /* - * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command) + * N_PM_SLEEP = 0x7A (notification only, not a command) * all devices identical. */ -struct iwl_sleep_notification { +struct il_sleep_notification { u8 pm_sleep_mode; u8 pm_wakeup_src; __le16 reserved; @@ -2332,23 +2313,23 @@ struct iwl_sleep_notification { /* Sleep states. all devices identical. */ enum { - IWL_PM_NO_SLEEP = 0, - IWL_PM_SLP_MAC = 1, - IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2, - IWL_PM_SLP_FULL_MAC_CARD_STATE = 3, - IWL_PM_SLP_PHY = 4, - IWL_PM_SLP_REPENT = 5, - IWL_PM_WAKEUP_BY_TIMER = 6, - IWL_PM_WAKEUP_BY_DRIVER = 7, - IWL_PM_WAKEUP_BY_RFKILL = 8, + IL_PM_NO_SLEEP = 0, + IL_PM_SLP_MAC = 1, + IL_PM_SLP_FULL_MAC_UNASSOCIATE = 2, + IL_PM_SLP_FULL_MAC_CARD_STATE = 3, + IL_PM_SLP_PHY = 4, + IL_PM_SLP_REPENT = 5, + IL_PM_WAKEUP_BY_TIMER = 6, + IL_PM_WAKEUP_BY_DRIVER = 7, + IL_PM_WAKEUP_BY_RFKILL = 8, /* 3 reserved */ - IWL_PM_NUM_OF_MODES = 12, + IL_PM_NUM_OF_MODES = 12, }; /* - * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command) + * N_CARD_STATE = 0xa1 (notification only, not a command) */ -struct iwl_card_state_notif { +struct il_card_state_notif { __le32 flags; } __packed; @@ -2357,11 +2338,11 @@ struct iwl_card_state_notif { #define CT_CARD_DISABLED 0x04 #define RXON_CARD_DISABLED 0x10 -struct iwl_ct_kill_config { - __le32 reserved; - __le32 critical_temperature_M; - __le32 critical_temperature_R; -} __packed; +struct il_ct_kill_config { + __le32 reserved; + __le32 critical_temperature_M; + __le32 critical_temperature_R; +} __packed; /****************************************************************************** * (8) @@ -2373,7 +2354,7 @@ struct iwl_ct_kill_config { #define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1) /** - * struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table + * struct il_scan_channel - entry in C_SCAN channel table * * One for each channel in the scan list. * Each channel can independently select: @@ -2383,7 +2364,7 @@ struct iwl_ct_kill_config { * quiet_plcp_th, good_CRC_th) * * To avoid uCode errors, make sure the following are true (see comments - * under struct iwl_scan_cmd about max_out_time and quiet_time): + * under struct il_scan_cmd about max_out_time and quiet_time): * 1) If using passive_dwell (i.e. passive_dwell != 0): * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0) * 2) quiet_time <= active_dwell @@ -2391,7 +2372,7 @@ struct iwl_ct_kill_config { * passive_dwell < max_out_time * active_dwell < max_out_time */ -struct iwl3945_scan_channel { +struct il3945_scan_channel { /* * type is defined as: * 0:0 1 = active, 0 = passive @@ -2400,16 +2381,16 @@ struct iwl3945_scan_channel { * 5:7 reserved */ u8 type; - u8 channel; /* band is selected by iwl3945_scan_cmd "flags" field */ - struct iwl3945_tx_power tpc; + u8 channel; /* band is selected by il3945_scan_cmd "flags" field */ + struct il3945_tx_power tpc; __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */ } __packed; /* set number of direct probes u8 type */ -#define IWL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1)))) +#define IL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1)))) -struct iwl_scan_channel { +struct il_scan_channel { /* * type is defined as: * 0:0 1 = active, 0 = passive @@ -2418,7 +2399,7 @@ struct iwl_scan_channel { * 21:31 reserved */ __le32 type; - __le16 channel; /* band is selected by iwl_scan_cmd "flags" field */ + __le16 channel; /* band is selected by il_scan_cmd "flags" field */ u8 tx_gain; /* gain for analog radio */ u8 dsp_atten; /* gain for DSP */ __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ @@ -2426,17 +2407,17 @@ struct iwl_scan_channel { } __packed; /* set number of direct probes __le32 type */ -#define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1)))) +#define IL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1)))) /** - * struct iwl_ssid_ie - directed scan network information element + * struct il_ssid_ie - directed scan network information element * - * Up to 20 of these may appear in REPLY_SCAN_CMD (Note: Only 4 are in - * 3945 SCAN api), selected by "type" bit field in struct iwl_scan_channel; + * Up to 20 of these may appear in C_SCAN (Note: Only 4 are in + * 3945 SCAN api), selected by "type" bit field in struct il_scan_channel; * each channel may select different ssids from among the 20 (4) entries. * SSID IEs get transmitted in reverse order of entry. */ -struct iwl_ssid_ie { +struct il_ssid_ie { u8 id; u8 len; u8 ssid[32]; @@ -2445,14 +2426,14 @@ struct iwl_ssid_ie { #define PROBE_OPTION_MAX_3945 4 #define PROBE_OPTION_MAX 20 #define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF) -#define IWL_GOOD_CRC_TH_DISABLED 0 -#define IWL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1) -#define IWL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff) -#define IWL_MAX_SCAN_SIZE 1024 -#define IWL_MAX_CMD_SIZE 4096 +#define IL_GOOD_CRC_TH_DISABLED 0 +#define IL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1) +#define IL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff) +#define IL_MAX_SCAN_SIZE 1024 +#define IL_MAX_CMD_SIZE 4096 /* - * REPLY_SCAN_CMD = 0x80 (command) + * C_SCAN = 0x80 (command) * * The hardware scan command is very powerful; the driver can set it up to * maintain (relatively) normal network traffic while doing a scan in the @@ -2501,10 +2482,10 @@ struct iwl_ssid_ie { * Driver must use separate scan commands for 2.4 vs. 5 GHz bands. * * To avoid uCode errors, see timing restrictions described under - * struct iwl_scan_channel. + * struct il_scan_channel. */ -struct iwl3945_scan_cmd { +struct il3945_scan_cmd { __le16 len; u8 reserved0; u8 channel_count; /* # channels in channel list */ @@ -2525,10 +2506,10 @@ struct iwl3945_scan_cmd { /* For active scans (set to all-0s for passive scans). * Does not include payload. Must specify Tx rate; no rate scaling. */ - struct iwl3945_tx_cmd tx_cmd; + struct il3945_tx_cmd tx_cmd; /* For directed active scans (set to all-0s otherwise) */ - struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX_3945]; + struct il_ssid_ie direct_scan[PROBE_OPTION_MAX_3945]; /* * Probe request frame, followed by channel list. @@ -2538,17 +2519,17 @@ struct iwl3945_scan_cmd { * Number of channels in list is specified by channel_count. * Each channel in list is of type: * - * struct iwl3945_scan_channel channels[0]; + * struct il3945_scan_channel channels[0]; * * NOTE: Only one band of channels can be scanned per pass. You * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait - * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION) + * for one scan to complete (i.e. receive N_SCAN_COMPLETE) * before requesting another scan. */ u8 data[0]; } __packed; -struct iwl_scan_cmd { +struct il_scan_cmd { __le16 len; u8 reserved0; u8 channel_count; /* # channels in channel list */ @@ -2569,10 +2550,10 @@ struct iwl_scan_cmd { /* For active scans (set to all-0s for passive scans). * Does not include payload. Must specify Tx rate; no rate scaling. */ - struct iwl_tx_cmd tx_cmd; + struct il_tx_cmd tx_cmd; /* For directed active scans (set to all-0s otherwise) */ - struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX]; + struct il_ssid_ie direct_scan[PROBE_OPTION_MAX]; /* * Probe request frame, followed by channel list. @@ -2582,11 +2563,11 @@ struct iwl_scan_cmd { * Number of channels in list is specified by channel_count. * Each channel in list is of type: * - * struct iwl_scan_channel channels[0]; + * struct il_scan_channel channels[0]; * * NOTE: Only one band of channels can be scanned per pass. You * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait - * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION) + * for one scan to complete (i.e. receive N_SCAN_COMPLETE) * before requesting another scan. */ u8 data[0]; @@ -2598,16 +2579,16 @@ struct iwl_scan_cmd { #define ABORT_STATUS 0x2 /* - * REPLY_SCAN_CMD = 0x80 (response) + * C_SCAN = 0x80 (response) */ -struct iwl_scanreq_notification { +struct il_scanreq_notification { __le32 status; /* 1: okay, 2: cannot fulfill request */ } __packed; /* - * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command) + * N_SCAN_START = 0x82 (notification only, not a command) */ -struct iwl_scanstart_notification { +struct il_scanstart_notification { __le32 tsf_low; __le32 tsf_high; __le32 beacon_timer; @@ -2620,30 +2601,30 @@ struct iwl_scanstart_notification { #define SCAN_OWNER_STATUS 0x1 #define MEASURE_OWNER_STATUS 0x2 -#define IWL_PROBE_STATUS_OK 0 -#define IWL_PROBE_STATUS_TX_FAILED BIT(0) +#define IL_PROBE_STATUS_OK 0 +#define IL_PROBE_STATUS_TX_FAILED BIT(0) /* error statuses combined with TX_FAILED */ -#define IWL_PROBE_STATUS_FAIL_TTL BIT(1) -#define IWL_PROBE_STATUS_FAIL_BT BIT(2) +#define IL_PROBE_STATUS_FAIL_TTL BIT(1) +#define IL_PROBE_STATUS_FAIL_BT BIT(2) -#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */ +#define NUMBER_OF_STATS 1 /* first __le32 is good CRC */ /* - * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command) + * N_SCAN_RESULTS = 0x83 (notification only, not a command) */ -struct iwl_scanresults_notification { +struct il_scanresults_notification { u8 channel; u8 band; u8 probe_status; - u8 num_probe_not_sent; /* not enough time to send */ + u8 num_probe_not_sent; /* not enough time to send */ __le32 tsf_low; __le32 tsf_high; - __le32 statistics[NUMBER_OF_STATISTICS]; + __le32 stats[NUMBER_OF_STATS]; } __packed; /* - * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command) + * N_SCAN_COMPLETE = 0x84 (notification only, not a command) */ -struct iwl_scancomplete_notification { +struct il_scancomplete_notification { u8 scanned_channels; u8 status; u8 last_channel; @@ -2651,50 +2632,49 @@ struct iwl_scancomplete_notification { __le32 tsf_high; } __packed; - /****************************************************************************** * (9) * IBSS/AP Commands and Notifications: * *****************************************************************************/ -enum iwl_ibss_manager { - IWL_NOT_IBSS_MANAGER = 0, - IWL_IBSS_MANAGER = 1, +enum il_ibss_manager { + IL_NOT_IBSS_MANAGER = 0, + IL_IBSS_MANAGER = 1, }; /* - * BEACON_NOTIFICATION = 0x90 (notification only, not a command) + * N_BEACON = 0x90 (notification only, not a command) */ -struct iwl3945_beacon_notif { - struct iwl3945_tx_resp beacon_notify_hdr; +struct il3945_beacon_notif { + struct il3945_tx_resp beacon_notify_hdr; __le32 low_tsf; __le32 high_tsf; __le32 ibss_mgr_status; } __packed; -struct iwl4965_beacon_notif { - struct iwl4965_tx_resp beacon_notify_hdr; +struct il4965_beacon_notif { + struct il4965_tx_resp beacon_notify_hdr; __le32 low_tsf; __le32 high_tsf; __le32 ibss_mgr_status; } __packed; /* - * REPLY_TX_BEACON = 0x91 (command, has simple generic response) + * C_TX_BEACON= 0x91 (command, has simple generic response) */ -struct iwl3945_tx_beacon_cmd { - struct iwl3945_tx_cmd tx; +struct il3945_tx_beacon_cmd { + struct il3945_tx_cmd tx; __le16 tim_idx; u8 tim_size; u8 reserved1; struct ieee80211_hdr frame[0]; /* beacon frame */ } __packed; -struct iwl_tx_beacon_cmd { - struct iwl_tx_cmd tx; +struct il_tx_beacon_cmd { + struct il_tx_cmd tx; __le16 tim_idx; u8 tim_size; u8 reserved1; @@ -2707,7 +2687,7 @@ struct iwl_tx_beacon_cmd { * *****************************************************************************/ -#define IWL_TEMP_CONVERT 260 +#define IL_TEMP_CONVERT 260 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 @@ -2727,9 +2707,9 @@ struct rate_histogram { } failed; } __packed; -/* statistics command response */ +/* stats command response */ -struct iwl39_statistics_rx_phy { +struct iwl39_stats_rx_phy { __le32 ina_cnt; __le32 fina_cnt; __le32 plcp_err; @@ -2747,7 +2727,7 @@ struct iwl39_statistics_rx_phy { __le32 sent_cts_cnt; } __packed; -struct iwl39_statistics_rx_non_phy { +struct iwl39_stats_rx_non_phy { __le32 bogus_cts; /* CTS received when not expecting CTS */ __le32 bogus_ack; /* ACK received when not expecting ACK */ __le32 non_bssid_frames; /* number of frames with BSSID that @@ -2758,13 +2738,13 @@ struct iwl39_statistics_rx_non_phy { * our serving channel */ } __packed; -struct iwl39_statistics_rx { - struct iwl39_statistics_rx_phy ofdm; - struct iwl39_statistics_rx_phy cck; - struct iwl39_statistics_rx_non_phy general; +struct iwl39_stats_rx { + struct iwl39_stats_rx_phy ofdm; + struct iwl39_stats_rx_phy cck; + struct iwl39_stats_rx_non_phy general; } __packed; -struct iwl39_statistics_tx { +struct iwl39_stats_tx { __le32 preamble_cnt; __le32 rx_detected_cnt; __le32 bt_prio_defer_cnt; @@ -2776,31 +2756,31 @@ struct iwl39_statistics_tx { __le32 actual_ack_cnt; } __packed; -struct statistics_dbg { +struct stats_dbg { __le32 burst_check; __le32 burst_count; __le32 wait_for_silence_timeout_cnt; __le32 reserved[3]; } __packed; -struct iwl39_statistics_div { +struct iwl39_stats_div { __le32 tx_on_a; __le32 tx_on_b; __le32 exec_time; __le32 probe_time; } __packed; -struct iwl39_statistics_general { +struct iwl39_stats_general { __le32 temperature; - struct statistics_dbg dbg; + struct stats_dbg dbg; __le32 sleep_time; __le32 slots_out; __le32 slots_idle; __le32 ttl_timestamp; - struct iwl39_statistics_div div; + struct iwl39_stats_div div; } __packed; -struct statistics_rx_phy { +struct stats_rx_phy { __le32 ina_cnt; __le32 fina_cnt; __le32 plcp_err; @@ -2823,7 +2803,7 @@ struct statistics_rx_phy { __le32 reserved3; } __packed; -struct statistics_rx_ht_phy { +struct stats_rx_ht_phy { __le32 plcp_err; __le32 overrun_err; __le32 early_overrun_err; @@ -2838,7 +2818,7 @@ struct statistics_rx_ht_phy { #define INTERFERENCE_DATA_AVAILABLE cpu_to_le32(1) -struct statistics_rx_non_phy { +struct stats_rx_non_phy { __le32 bogus_cts; /* CTS received when not expecting CTS */ __le32 bogus_ack; /* ACK received when not expecting ACK */ __le32 non_bssid_frames; /* number of frames with BSSID that @@ -2852,15 +2832,15 @@ struct statistics_rx_non_phy { __le32 num_missed_bcon; /* number of missed beacons */ __le32 adc_rx_saturation_time; /* count in 0.8us units the time the * ADC was in saturation */ - __le32 ina_detection_search_time;/* total time (in 0.8us) searched - * for INA */ + __le32 ina_detection_search_time; /* total time (in 0.8us) searched + * for INA */ __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */ __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */ __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */ __le32 interference_data_flag; /* flag for interference data * availability. 1 when data is * available. */ - __le32 channel_load; /* counts RX Enable time in uSec */ + __le32 channel_load; /* counts RX Enable time in uSec */ __le32 dsp_false_alarms; /* DSP false alarm (both OFDM * and CCK) counter */ __le32 beacon_rssi_a; @@ -2871,28 +2851,28 @@ struct statistics_rx_non_phy { __le32 beacon_energy_c; } __packed; -struct statistics_rx { - struct statistics_rx_phy ofdm; - struct statistics_rx_phy cck; - struct statistics_rx_non_phy general; - struct statistics_rx_ht_phy ofdm_ht; +struct stats_rx { + struct stats_rx_phy ofdm; + struct stats_rx_phy cck; + struct stats_rx_non_phy general; + struct stats_rx_ht_phy ofdm_ht; } __packed; /** - * struct statistics_tx_power - current tx power + * struct stats_tx_power - current tx power * * @ant_a: current tx power on chain a in 1/2 dB step * @ant_b: current tx power on chain b in 1/2 dB step * @ant_c: current tx power on chain c in 1/2 dB step */ -struct statistics_tx_power { +struct stats_tx_power { u8 ant_a; u8 ant_b; u8 ant_c; u8 reserved; } __packed; -struct statistics_tx_non_phy_agg { +struct stats_tx_non_phy_agg { __le32 ba_timeout; __le32 ba_reschedule_frames; __le32 scd_query_agg_frame_cnt; @@ -2905,7 +2885,7 @@ struct statistics_tx_non_phy_agg { __le32 rx_ba_rsp_cnt; } __packed; -struct statistics_tx { +struct stats_tx { __le32 preamble_cnt; __le32 rx_detected_cnt; __le32 bt_prio_defer_cnt; @@ -2920,13 +2900,12 @@ struct statistics_tx { __le32 burst_abort_missing_next_frame_cnt; __le32 cts_timeout_collision; __le32 ack_or_ba_timeout_collision; - struct statistics_tx_non_phy_agg agg; + struct stats_tx_non_phy_agg agg; __le32 reserved1; } __packed; - -struct statistics_div { +struct stats_div { __le32 tx_on_a; __le32 tx_on_b; __le32 exec_time; @@ -2935,14 +2914,14 @@ struct statistics_div { __le32 reserved2; } __packed; -struct statistics_general_common { - __le32 temperature; /* radio temperature */ - struct statistics_dbg dbg; +struct stats_general_common { + __le32 temperature; /* radio temperature */ + struct stats_dbg dbg; __le32 sleep_time; __le32 slots_out; __le32 slots_idle; __le32 ttl_timestamp; - struct statistics_div div; + struct stats_div div; __le32 rx_enable_counter; /* * num_of_sos_states: @@ -2952,73 +2931,73 @@ struct statistics_general_common { __le32 num_of_sos_states; } __packed; -struct statistics_general { - struct statistics_general_common common; +struct stats_general { + struct stats_general_common common; __le32 reserved2; __le32 reserved3; } __packed; -#define UCODE_STATISTICS_CLEAR_MSK (0x1 << 0) -#define UCODE_STATISTICS_FREQUENCY_MSK (0x1 << 1) -#define UCODE_STATISTICS_NARROW_BAND_MSK (0x1 << 2) +#define UCODE_STATS_CLEAR_MSK (0x1 << 0) +#define UCODE_STATS_FREQUENCY_MSK (0x1 << 1) +#define UCODE_STATS_NARROW_BAND_MSK (0x1 << 2) /* - * REPLY_STATISTICS_CMD = 0x9c, + * C_STATS = 0x9c, * all devices identical. * - * This command triggers an immediate response containing uCode statistics. - * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below. + * This command triggers an immediate response containing uCode stats. + * The response is in the same format as N_STATS 0x9d, below. * * If the CLEAR_STATS configuration flag is set, uCode will clear its - * internal copy of the statistics (counters) after issuing the response. - * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below). + * internal copy of the stats (counters) after issuing the response. + * This flag does not affect N_STATSs after beacons (see below). * * If the DISABLE_NOTIF configuration flag is set, uCode will not issue - * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag - * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself. + * N_STATSs after received beacons (see below). This flag + * does not affect the response to the C_STATS 0x9c itself. */ -#define IWL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */ -#define IWL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */ -struct iwl_statistics_cmd { - __le32 configuration_flags; /* IWL_STATS_CONF_* */ +#define IL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */ +#define IL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2) /* see above */ +struct il_stats_cmd { + __le32 configuration_flags; /* IL_STATS_CONF_* */ } __packed; /* - * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command) + * N_STATS = 0x9d (notification only, not a command) * * By default, uCode issues this notification after receiving a beacon * while associated. To disable this behavior, set DISABLE_NOTIF flag in the - * REPLY_STATISTICS_CMD 0x9c, above. + * C_STATS 0x9c, above. * * Statistics counters continue to increment beacon after beacon, but are - * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD + * cleared when changing channels or when driver issues C_STATS * 0x9c with CLEAR_STATS bit set (see above). * - * uCode also issues this notification during scans. uCode clears statistics - * appropriately so that each notification contains statistics for only the + * uCode also issues this notification during scans. uCode clears stats + * appropriately so that each notification contains stats for only the * one channel that has just been scanned. */ -#define STATISTICS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2) -#define STATISTICS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8) +#define STATS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2) +#define STATS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8) -struct iwl3945_notif_statistics { +struct il3945_notif_stats { __le32 flag; - struct iwl39_statistics_rx rx; - struct iwl39_statistics_tx tx; - struct iwl39_statistics_general general; + struct iwl39_stats_rx rx; + struct iwl39_stats_tx tx; + struct iwl39_stats_general general; } __packed; -struct iwl_notif_statistics { +struct il_notif_stats { __le32 flag; - struct statistics_rx rx; - struct statistics_tx tx; - struct statistics_general general; + struct stats_rx rx; + struct stats_tx tx; + struct stats_general general; } __packed; /* - * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command) + * N_MISSED_BEACONS = 0xa2 (notification only, not a command) * - * uCode send MISSED_BEACONS_NOTIFICATION to driver when detect beacon missed + * uCode send N_MISSED_BEACONS to driver when detect beacon missed * in regardless of how many missed beacons, which mean when driver receive the * notification, inside the command, it can find all the beacons information * which include number of total missed beacons, number of consecutive missed @@ -3035,18 +3014,17 @@ struct iwl_notif_statistics { * */ -#define IWL_MISSED_BEACON_THRESHOLD_MIN (1) -#define IWL_MISSED_BEACON_THRESHOLD_DEF (5) -#define IWL_MISSED_BEACON_THRESHOLD_MAX IWL_MISSED_BEACON_THRESHOLD_DEF +#define IL_MISSED_BEACON_THRESHOLD_MIN (1) +#define IL_MISSED_BEACON_THRESHOLD_DEF (5) +#define IL_MISSED_BEACON_THRESHOLD_MAX IL_MISSED_BEACON_THRESHOLD_DEF -struct iwl_missed_beacon_notif { +struct il_missed_beacon_notif { __le32 consecutive_missed_beacons; __le32 total_missed_becons; __le32 num_expected_beacons; __le32 num_recvd_beacons; } __packed; - /****************************************************************************** * (11) * Rx Calibration Commands: @@ -3062,7 +3040,7 @@ struct iwl_missed_beacon_notif { *****************************************************************************/ /** - * SENSITIVITY_CMD = 0xa8 (command, has simple generic response) + * C_SENSITIVITY = 0xa8 (command, has simple generic response) * * This command sets up the Rx signal detector for a sensitivity level that * is high enough to lock onto all signals within the associated network, @@ -3076,12 +3054,12 @@ struct iwl_missed_beacon_notif { * time listening, not transmitting). Driver must adjust sensitivity so that * the ratio of actual false alarms to actual Rx time falls within this range. * - * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each + * While associated, uCode delivers N_STATSs after each * received beacon. These provide information to the driver to analyze the - * sensitivity. Don't analyze statistics that come in from scanning, or any - * other non-associated-network source. Pertinent statistics include: + * sensitivity. Don't analyze stats that come in from scanning, or any + * other non-associated-network source. Pertinent stats include: * - * From "general" statistics (struct statistics_rx_non_phy): + * From "general" stats (struct stats_rx_non_phy): * * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level) * Measure of energy of desired signal. Used for establishing a level @@ -3094,7 +3072,7 @@ struct iwl_missed_beacon_notif { * uSecs of actual Rx time during beacon period (varies according to * how much time was spent transmitting). * - * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately: + * From "cck" and "ofdm" stats (struct stats_rx_phy), separately: * * false_alarm_cnt * Signal locks abandoned early (before phy-level header). @@ -3111,15 +3089,15 @@ struct iwl_missed_beacon_notif { * * Total number of false alarms = false_alarms + plcp_errs * - * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd + * For OFDM, adjust the following table entries in struct il_sensitivity_cmd * (notice that the start points for OFDM are at or close to settings for * maximum sensitivity): * * START / MIN / MAX - * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120 - * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210 - * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140 - * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270 + * HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX 90 / 85 / 120 + * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX 170 / 170 / 210 + * HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX 105 / 105 / 140 + * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX 220 / 220 / 270 * * If actual rate of OFDM false alarms (+ plcp_errors) is too high * (greater than 50 for each 204.8 msecs listening), reduce sensitivity @@ -3152,30 +3130,30 @@ struct iwl_missed_beacon_notif { * Reset this to 0 at the first beacon period that falls within the * "good" range (5 to 50 false alarms per 204.8 milliseconds rx). * - * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd + * Then, adjust the following CCK table entries in struct il_sensitivity_cmd * (notice that the start points for CCK are at maximum sensitivity): * * START / MIN / MAX - * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200 - * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400 - * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100 + * HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX 125 / 125 / 200 + * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX 200 / 200 / 400 + * HD_MIN_ENERGY_CCK_DET_IDX 100 / 0 / 100 * * If actual rate of CCK false alarms (+ plcp_errors) is too high * (greater than 50 for each 204.8 msecs listening), method for reducing * sensitivity is: * - * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, + * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX, * up to max 400. * - * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160, + * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is < 160, * sensitivity has been reduced a significant amount; bring it up to * a moderate 161. Otherwise, *add* 3, up to max 200. * - * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160, + * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is > 160, * sensitivity has been reduced only a moderate or small amount; - * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX, + * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_IDX, * down to min 0. Otherwise (if gain has been significantly reduced), - * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value. + * don't change the HD_MIN_ENERGY_CCK_DET_IDX value. * * b) Save a snapshot of the "silence reference". * @@ -3191,13 +3169,13 @@ struct iwl_missed_beacon_notif { * * Method for increasing sensitivity: * - * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX, + * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX, * down to min 125. * - * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, + * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX, * down to min 200. * - * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100. + * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_IDX, up to max 100. * * If actual rate of CCK false alarms (+ plcp_errors) is within good range * (between 5 and 50 for each 204.8 msecs listening): @@ -3206,57 +3184,56 @@ struct iwl_missed_beacon_notif { * * 2) If previous beacon had too many CCK false alarms (+ plcp_errors), * give some extra margin to energy threshold by *subtracting* 8 - * from value in HD_MIN_ENERGY_CCK_DET_INDEX. + * from value in HD_MIN_ENERGY_CCK_DET_IDX. * * For all cases (too few, too many, good range), make sure that the CCK * detection threshold (energy) is below the energy level for robust * detection over the past 10 beacon periods, the "Max cck energy". * Lower values mean higher energy; this means making sure that the value - * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy". + * in HD_MIN_ENERGY_CCK_DET_IDX is at or *above* "Max cck energy". * */ /* - * Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd) - */ -#define HD_TABLE_SIZE (11) /* number of entries */ -#define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */ -#define HD_MIN_ENERGY_OFDM_DET_INDEX (1) -#define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2) -#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3) -#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4) -#define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5) -#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6) -#define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7) -#define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8) -#define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9) -#define HD_OFDM_ENERGY_TH_IN_INDEX (10) - -/* Control field in struct iwl_sensitivity_cmd */ -#define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE cpu_to_le16(0) -#define SENSITIVITY_CMD_CONTROL_WORK_TABLE cpu_to_le16(1) + * Table entries in C_SENSITIVITY (struct il_sensitivity_cmd) + */ +#define HD_TBL_SIZE (11) /* number of entries */ +#define HD_MIN_ENERGY_CCK_DET_IDX (0) /* table idxes */ +#define HD_MIN_ENERGY_OFDM_DET_IDX (1) +#define HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX (2) +#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX (3) +#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX (4) +#define HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX (5) +#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX (6) +#define HD_BARKER_CORR_TH_ADD_MIN_IDX (7) +#define HD_BARKER_CORR_TH_ADD_MIN_MRC_IDX (8) +#define HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX (9) +#define HD_OFDM_ENERGY_TH_IN_IDX (10) + +/* Control field in struct il_sensitivity_cmd */ +#define C_SENSITIVITY_CONTROL_DEFAULT_TBL cpu_to_le16(0) +#define C_SENSITIVITY_CONTROL_WORK_TBL cpu_to_le16(1) /** - * struct iwl_sensitivity_cmd + * struct il_sensitivity_cmd * @control: (1) updates working table, (0) updates default table - * @table: energy threshold values, use HD_* as index into table + * @table: energy threshold values, use HD_* as idx into table * * Always use "1" in "control" to update uCode's working table and DSP. */ -struct iwl_sensitivity_cmd { - __le16 control; /* always use "1" */ - __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */ +struct il_sensitivity_cmd { + __le16 control; /* always use "1" */ + __le16 table[HD_TBL_SIZE]; /* use HD_* as idx */ } __packed; - /** - * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response) + * C_PHY_CALIBRATION = 0xb0 (command, has simple generic response) * * This command sets the relative gains of 4965 device's 3 radio receiver chains. * * After the first association, driver should accumulate signal and noise - * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20 - * beacons from the associated network (don't collect statistics that come + * stats from the N_STATSs that follow the first 20 + * beacons from the associated network (don't collect stats that come * in from scanning, or any other non-network source). * * DISCONNECTED ANTENNA: @@ -3264,7 +3241,7 @@ struct iwl_sensitivity_cmd { * Driver should determine which antennas are actually connected, by comparing * average beacon signal levels for the 3 Rx chains. Accumulate (add) the * following values over 20 beacons, one accumulator for each of the chains - * a/b/c, from struct statistics_rx_non_phy: + * a/b/c, from struct stats_rx_non_phy: * * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB) * @@ -3283,7 +3260,7 @@ struct iwl_sensitivity_cmd { * to antennas, see above) for gain, by comparing the average signal levels * detected during the silence after each beacon (background noise). * Accumulate (add) the following values over 20 beacons, one accumulator for - * each of the chains a/b/c, from struct statistics_rx_non_phy: + * each of the chains a/b/c, from struct stats_rx_non_phy: * * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB) * @@ -3294,7 +3271,7 @@ struct iwl_sensitivity_cmd { * (accum_noise[i] - accum_noise[reference]) / 30 * * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB. - * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the + * For use in diff_gain_[abc] fields of struct il_calibration_cmd, the * driver should limit the difference results to a range of 0-3 (0-4.5 dB), * and set bit 2 to indicate "reduce gain". The value for the reference * (weakest) chain should be "0". @@ -3306,24 +3283,24 @@ struct iwl_sensitivity_cmd { /* Phy calibration command for series */ /* The default calibrate table size if not specified by firmware */ -#define IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18 +#define IL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18 enum { - IWL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7, - IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19, + IL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7, + IL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19, }; -#define IWL_MAX_PHY_CALIBRATE_TBL_SIZE (253) +#define IL_MAX_PHY_CALIBRATE_TBL_SIZE (253) -struct iwl_calib_hdr { +struct il_calib_hdr { u8 op_code; u8 first_group; u8 groups_num; u8 data_valid; } __packed; -/* IWL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */ -struct iwl_calib_diff_gain_cmd { - struct iwl_calib_hdr hdr; +/* IL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */ +struct il_calib_diff_gain_cmd { + struct il_calib_hdr hdr; s8 diff_gain_a; /* see above */ s8 diff_gain_b; s8 diff_gain_c; @@ -3338,12 +3315,12 @@ struct iwl_calib_diff_gain_cmd { /* * LEDs Command & Response - * REPLY_LEDS_CMD = 0x48 (command, has simple generic response) + * C_LEDS = 0x48 (command, has simple generic response) * * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field), * this command turns it on or off, or sets up a periodic blinking cycle. */ -struct iwl_led_cmd { +struct il_led_cmd { __le32 interval; /* "interval" in uSec */ u8 id; /* 1: Activity, 2: Link, 3: Tech */ u8 off; /* # intervals off while blinking; @@ -3353,14 +3330,15 @@ struct iwl_led_cmd { u8 reserved; } __packed; - /****************************************************************************** * (13) * Union of all expected notifications/responses: * *****************************************************************************/ -struct iwl_rx_packet { +#define IL_RX_FRAME_SIZE_MSK 0x00003fff + +struct il_rx_pkt { /* * The first 4 bytes of the RX frame header contain both the RX frame * size and some flags. @@ -3372,27 +3350,27 @@ struct iwl_rx_packet { * 13-00: RX frame size */ __le32 len_n_flags; - struct iwl_cmd_header hdr; + struct il_cmd_header hdr; union { - struct iwl3945_rx_frame rx_frame; - struct iwl3945_tx_resp tx_resp; - struct iwl3945_beacon_notif beacon_status; - - struct iwl_alive_resp alive_frame; - struct iwl_spectrum_notification spectrum_notif; - struct iwl_csa_notification csa_notif; - struct iwl_error_resp err_resp; - struct iwl_card_state_notif card_state_notif; - struct iwl_add_sta_resp add_sta; - struct iwl_rem_sta_resp rem_sta; - struct iwl_sleep_notification sleep_notif; - struct iwl_spectrum_resp spectrum; - struct iwl_notif_statistics stats; - struct iwl_compressed_ba_resp compressed_ba; - struct iwl_missed_beacon_notif missed_beacon; + struct il3945_rx_frame rx_frame; + struct il3945_tx_resp tx_resp; + struct il3945_beacon_notif beacon_status; + + struct il_alive_resp alive_frame; + struct il_spectrum_notification spectrum_notif; + struct il_csa_notification csa_notif; + struct il_error_resp err_resp; + struct il_card_state_notif card_state_notif; + struct il_add_sta_resp add_sta; + struct il_rem_sta_resp rem_sta; + struct il_sleep_notification sleep_notif; + struct il_spectrum_resp spectrum; + struct il_notif_stats stats; + struct il_compressed_ba_resp compressed_ba; + struct il_missed_beacon_notif missed_beacon; __le32 status; u8 raw[0]; } u; } __packed; -#endif /* __iwl_legacy_commands_h__ */ +#endif /* __il_commands_h__ */ diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c new file mode 100644 index 000000000000..7e2924f332a7 --- /dev/null +++ b/drivers/net/wireless/iwlegacy/common.c @@ -0,0 +1,5707 @@ +/****************************************************************************** + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + *****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/etherdevice.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/lockdep.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/delay.h> +#include <linux/skbuff.h> +#include <net/mac80211.h> + +#include "common.h" + +const char * +il_get_cmd_string(u8 cmd) +{ + switch (cmd) { + IL_CMD(N_ALIVE); + IL_CMD(N_ERROR); + IL_CMD(C_RXON); + IL_CMD(C_RXON_ASSOC); + IL_CMD(C_QOS_PARAM); + IL_CMD(C_RXON_TIMING); + IL_CMD(C_ADD_STA); + IL_CMD(C_REM_STA); + IL_CMD(C_WEPKEY); + IL_CMD(N_3945_RX); + IL_CMD(C_TX); + IL_CMD(C_RATE_SCALE); + IL_CMD(C_LEDS); + IL_CMD(C_TX_LINK_QUALITY_CMD); + IL_CMD(C_CHANNEL_SWITCH); + IL_CMD(N_CHANNEL_SWITCH); + IL_CMD(C_SPECTRUM_MEASUREMENT); + IL_CMD(N_SPECTRUM_MEASUREMENT); + IL_CMD(C_POWER_TBL); + IL_CMD(N_PM_SLEEP); + IL_CMD(N_PM_DEBUG_STATS); + IL_CMD(C_SCAN); + IL_CMD(C_SCAN_ABORT); + IL_CMD(N_SCAN_START); + IL_CMD(N_SCAN_RESULTS); + IL_CMD(N_SCAN_COMPLETE); + IL_CMD(N_BEACON); + IL_CMD(C_TX_BEACON); + IL_CMD(C_TX_PWR_TBL); + IL_CMD(C_BT_CONFIG); + IL_CMD(C_STATS); + IL_CMD(N_STATS); + IL_CMD(N_CARD_STATE); + IL_CMD(N_MISSED_BEACONS); + IL_CMD(C_CT_KILL_CONFIG); + IL_CMD(C_SENSITIVITY); + IL_CMD(C_PHY_CALIBRATION); + IL_CMD(N_RX_PHY); + IL_CMD(N_RX_MPDU); + IL_CMD(N_RX); + IL_CMD(N_COMPRESSED_BA); + default: + return "UNKNOWN"; + + } +} +EXPORT_SYMBOL(il_get_cmd_string); + +#define HOST_COMPLETE_TIMEOUT (HZ / 2) + +static void +il_generic_cmd_callback(struct il_priv *il, struct il_device_cmd *cmd, + struct il_rx_pkt *pkt) +{ + if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { + IL_ERR("Bad return from %s (0x%08X)\n", + il_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); + return; + } +#ifdef CONFIG_IWLEGACY_DEBUG + switch (cmd->hdr.cmd) { + case C_TX_LINK_QUALITY_CMD: + case C_SENSITIVITY: + D_HC_DUMP("back from %s (0x%08X)\n", + il_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); + break; + default: + D_HC("back from %s (0x%08X)\n", il_get_cmd_string(cmd->hdr.cmd), + pkt->hdr.flags); + } +#endif +} + +static int +il_send_cmd_async(struct il_priv *il, struct il_host_cmd *cmd) +{ + int ret; + + BUG_ON(!(cmd->flags & CMD_ASYNC)); + + /* An asynchronous command can not expect an SKB to be set. */ + BUG_ON(cmd->flags & CMD_WANT_SKB); + + /* Assign a generic callback if one is not provided */ + if (!cmd->callback) + cmd->callback = il_generic_cmd_callback; + + if (test_bit(S_EXIT_PENDING, &il->status)) + return -EBUSY; + + ret = il_enqueue_hcmd(il, cmd); + if (ret < 0) { + IL_ERR("Error sending %s: enqueue_hcmd failed: %d\n", + il_get_cmd_string(cmd->id), ret); + return ret; + } + return 0; +} + +int +il_send_cmd_sync(struct il_priv *il, struct il_host_cmd *cmd) +{ + int cmd_idx; + int ret; + + lockdep_assert_held(&il->mutex); + + BUG_ON(cmd->flags & CMD_ASYNC); + + /* A synchronous command can not have a callback set. */ + BUG_ON(cmd->callback); + + D_INFO("Attempting to send sync command %s\n", + il_get_cmd_string(cmd->id)); + + set_bit(S_HCMD_ACTIVE, &il->status); + D_INFO("Setting HCMD_ACTIVE for command %s\n", + il_get_cmd_string(cmd->id)); + + cmd_idx = il_enqueue_hcmd(il, cmd); + if (cmd_idx < 0) { + ret = cmd_idx; + IL_ERR("Error sending %s: enqueue_hcmd failed: %d\n", + il_get_cmd_string(cmd->id), ret); + goto out; + } + + ret = wait_event_timeout(il->wait_command_queue, + !test_bit(S_HCMD_ACTIVE, &il->status), + HOST_COMPLETE_TIMEOUT); + if (!ret) { + if (test_bit(S_HCMD_ACTIVE, &il->status)) { + IL_ERR("Error sending %s: time out after %dms.\n", + il_get_cmd_string(cmd->id), + jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); + + clear_bit(S_HCMD_ACTIVE, &il->status); + D_INFO("Clearing HCMD_ACTIVE for command %s\n", + il_get_cmd_string(cmd->id)); + ret = -ETIMEDOUT; + goto cancel; + } + } + + if (test_bit(S_RF_KILL_HW, &il->status)) { + IL_ERR("Command %s aborted: RF KILL Switch\n", + il_get_cmd_string(cmd->id)); + ret = -ECANCELED; + goto fail; + } + if (test_bit(S_FW_ERROR, &il->status)) { + IL_ERR("Command %s failed: FW Error\n", + il_get_cmd_string(cmd->id)); + ret = -EIO; + goto fail; + } + if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) { + IL_ERR("Error: Response NULL in '%s'\n", + il_get_cmd_string(cmd->id)); + ret = -EIO; + goto cancel; + } + + ret = 0; + goto out; + +cancel: + if (cmd->flags & CMD_WANT_SKB) { + /* + * Cancel the CMD_WANT_SKB flag for the cmd in the + * TX cmd queue. Otherwise in case the cmd comes + * in later, it will possibly set an invalid + * address (cmd->meta.source). + */ + il->txq[il->cmd_queue].meta[cmd_idx].flags &= ~CMD_WANT_SKB; + } +fail: + if (cmd->reply_page) { + il_free_pages(il, cmd->reply_page); + cmd->reply_page = 0; + } +out: + return ret; +} +EXPORT_SYMBOL(il_send_cmd_sync); + +int +il_send_cmd(struct il_priv *il, struct il_host_cmd *cmd) +{ + if (cmd->flags & CMD_ASYNC) + return il_send_cmd_async(il, cmd); + + return il_send_cmd_sync(il, cmd); +} +EXPORT_SYMBOL(il_send_cmd); + +int +il_send_cmd_pdu(struct il_priv *il, u8 id, u16 len, const void *data) +{ + struct il_host_cmd cmd = { + .id = id, + .len = len, + .data = data, + }; + + return il_send_cmd_sync(il, &cmd); +} +EXPORT_SYMBOL(il_send_cmd_pdu); + +int +il_send_cmd_pdu_async(struct il_priv *il, u8 id, u16 len, const void *data, + void (*callback) (struct il_priv *il, + struct il_device_cmd *cmd, + struct il_rx_pkt *pkt)) +{ + struct il_host_cmd cmd = { + .id = id, + .len = len, + .data = data, + }; + + cmd.flags |= CMD_ASYNC; + cmd.callback = callback; + + return il_send_cmd_async(il, &cmd); +} +EXPORT_SYMBOL(il_send_cmd_pdu_async); + +/* default: IL_LED_BLINK(0) using blinking idx table */ +static int led_mode; +module_param(led_mode, int, S_IRUGO); +MODULE_PARM_DESC(led_mode, + "0=system default, " "1=On(RF On)/Off(RF Off), 2=blinking"); + +/* Throughput OFF time(ms) ON time (ms) + * >300 25 25 + * >200 to 300 40 40 + * >100 to 200 55 55 + * >70 to 100 65 65 + * >50 to 70 75 75 + * >20 to 50 85 85 + * >10 to 20 95 95 + * >5 to 10 110 110 + * >1 to 5 130 130 + * >0 to 1 167 167 + * <=0 SOLID ON + */ +static const struct ieee80211_tpt_blink il_blink[] = { + {.throughput = 0, .blink_time = 334}, + {.throughput = 1 * 1024 - 1, .blink_time = 260}, + {.throughput = 5 * 1024 - 1, .blink_time = 220}, + {.throughput = 10 * 1024 - 1, .blink_time = 190}, + {.throughput = 20 * 1024 - 1, .blink_time = 170}, + {.throughput = 50 * 1024 - 1, .blink_time = 150}, + {.throughput = 70 * 1024 - 1, .blink_time = 130}, + {.throughput = 100 * 1024 - 1, .blink_time = 110}, + {.throughput = 200 * 1024 - 1, .blink_time = 80}, + {.throughput = 300 * 1024 - 1, .blink_time = 50}, +}; + +/* + * Adjust led blink rate to compensate on a MAC Clock difference on every HW + * Led blink rate analysis showed an average deviation of 0% on 3945, + * 5% on 4965 HW. + * Need to compensate on the led on/off time per HW according to the deviation + * to achieve the desired led frequency + * The calculation is: (100-averageDeviation)/100 * blinkTime + * For code efficiency the calculation will be: + * compensation = (100 - averageDeviation) * 64 / 100 + * NewBlinkTime = (compensation * BlinkTime) / 64 + */ +static inline u8 +il_blink_compensation(struct il_priv *il, u8 time, u16 compensation) +{ + if (!compensation) { + IL_ERR("undefined blink compensation: " + "use pre-defined blinking time\n"); + return time; + } + + return (u8) ((time * compensation) >> 6); +} + +/* Set led pattern command */ +static int +il_led_cmd(struct il_priv *il, unsigned long on, unsigned long off) +{ + struct il_led_cmd led_cmd = { + .id = IL_LED_LINK, + .interval = IL_DEF_LED_INTRVL + }; + int ret; + + if (!test_bit(S_READY, &il->status)) + return -EBUSY; + + if (il->blink_on == on && il->blink_off == off) + return 0; + + if (off == 0) { + /* led is SOLID_ON */ + on = IL_LED_SOLID; + } + + D_LED("Led blink time compensation=%u\n", + il->cfg->base_params->led_compensation); + led_cmd.on = + il_blink_compensation(il, on, + il->cfg->base_params->led_compensation); + led_cmd.off = + il_blink_compensation(il, off, + il->cfg->base_params->led_compensation); + + ret = il->cfg->ops->led->cmd(il, &led_cmd); + if (!ret) { + il->blink_on = on; + il->blink_off = off; + } + return ret; +} + +static void +il_led_brightness_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct il_priv *il = container_of(led_cdev, struct il_priv, led); + unsigned long on = 0; + + if (brightness > 0) + on = IL_LED_SOLID; + + il_led_cmd(il, on, 0); +} + +static int +il_led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on, + unsigned long *delay_off) +{ + struct il_priv *il = container_of(led_cdev, struct il_priv, led); + + return il_led_cmd(il, *delay_on, *delay_off); +} + +void +il_leds_init(struct il_priv *il) +{ + int mode = led_mode; + int ret; + + if (mode == IL_LED_DEFAULT) + mode = il->cfg->led_mode; + + il->led.name = + kasprintf(GFP_KERNEL, "%s-led", wiphy_name(il->hw->wiphy)); + il->led.brightness_set = il_led_brightness_set; + il->led.blink_set = il_led_blink_set; + il->led.max_brightness = 1; + + switch (mode) { + case IL_LED_DEFAULT: + WARN_ON(1); + break; + case IL_LED_BLINK: + il->led.default_trigger = + ieee80211_create_tpt_led_trigger(il->hw, + IEEE80211_TPT_LEDTRIG_FL_CONNECTED, + il_blink, + ARRAY_SIZE(il_blink)); + break; + case IL_LED_RF_STATE: + il->led.default_trigger = ieee80211_get_radio_led_name(il->hw); + break; + } + + ret = led_classdev_register(&il->pci_dev->dev, &il->led); + if (ret) { + kfree(il->led.name); + return; + } + + il->led_registered = true; +} +EXPORT_SYMBOL(il_leds_init); + +void +il_leds_exit(struct il_priv *il) +{ + if (!il->led_registered) + return; + + led_classdev_unregister(&il->led); + kfree(il->led.name); +} +EXPORT_SYMBOL(il_leds_exit); + +/************************** EEPROM BANDS **************************** + * + * The il_eeprom_band definitions below provide the mapping from the + * EEPROM contents to the specific channel number supported for each + * band. + * + * For example, il_priv->eeprom.band_3_channels[4] from the band_3 + * definition below maps to physical channel 42 in the 5.2GHz spectrum. + * The specific geography and calibration information for that channel + * is contained in the eeprom map itself. + * + * During init, we copy the eeprom information and channel map + * information into il->channel_info_24/52 and il->channel_map_24/52 + * + * channel_map_24/52 provides the idx in the channel_info array for a + * given channel. We have to have two separate maps as there is channel + * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and + * band_2 + * + * A value of 0xff stored in the channel_map indicates that the channel + * is not supported by the hardware at all. + * + * A value of 0xfe in the channel_map indicates that the channel is not + * valid for Tx with the current hardware. This means that + * while the system can tune and receive on a given channel, it may not + * be able to associate or transmit any frames on that + * channel. There is no corresponding channel information for that + * entry. + * + *********************************************************************/ + +/* 2.4 GHz */ +const u8 il_eeprom_band_1[14] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 +}; + +/* 5.2 GHz bands */ +static const u8 il_eeprom_band_2[] = { /* 4915-5080MHz */ + 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 +}; + +static const u8 il_eeprom_band_3[] = { /* 5170-5320MHz */ + 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 +}; + +static const u8 il_eeprom_band_4[] = { /* 5500-5700MHz */ + 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 +}; + +static const u8 il_eeprom_band_5[] = { /* 5725-5825MHz */ + 145, 149, 153, 157, 161, 165 +}; + +static const u8 il_eeprom_band_6[] = { /* 2.4 ht40 channel */ + 1, 2, 3, 4, 5, 6, 7 +}; + +static const u8 il_eeprom_band_7[] = { /* 5.2 ht40 channel */ + 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157 +}; + +/****************************************************************************** + * + * EEPROM related functions + * +******************************************************************************/ + +static int +il_eeprom_verify_signature(struct il_priv *il) +{ + u32 gp = _il_rd(il, CSR_EEPROM_GP) & CSR_EEPROM_GP_VALID_MSK; + int ret = 0; + + D_EEPROM("EEPROM signature=0x%08x\n", gp); + switch (gp) { + case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K: + case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K: + break; + default: + IL_ERR("bad EEPROM signature," "EEPROM_GP=0x%08x\n", gp); + ret = -ENOENT; + break; + } + return ret; +} + +const u8 * +il_eeprom_query_addr(const struct il_priv *il, size_t offset) +{ + BUG_ON(offset >= il->cfg->base_params->eeprom_size); + return &il->eeprom[offset]; +} +EXPORT_SYMBOL(il_eeprom_query_addr); + +u16 +il_eeprom_query16(const struct il_priv *il, size_t offset) +{ + if (!il->eeprom) + return 0; + return (u16) il->eeprom[offset] | ((u16) il->eeprom[offset + 1] << 8); +} +EXPORT_SYMBOL(il_eeprom_query16); + +/** + * il_eeprom_init - read EEPROM contents + * + * Load the EEPROM contents from adapter into il->eeprom + * + * NOTE: This routine uses the non-debug IO access functions. + */ +int +il_eeprom_init(struct il_priv *il) +{ + __le16 *e; + u32 gp = _il_rd(il, CSR_EEPROM_GP); + int sz; + int ret; + u16 addr; + + /* allocate eeprom */ + sz = il->cfg->base_params->eeprom_size; + D_EEPROM("NVM size = %d\n", sz); + il->eeprom = kzalloc(sz, GFP_KERNEL); + if (!il->eeprom) { + ret = -ENOMEM; + goto alloc_err; + } + e = (__le16 *) il->eeprom; + + il->cfg->ops->lib->apm_ops.init(il); + + ret = il_eeprom_verify_signature(il); + if (ret < 0) { + IL_ERR("EEPROM not found, EEPROM_GP=0x%08x\n", gp); + ret = -ENOENT; + goto err; + } + + /* Make sure driver (instead of uCode) is allowed to read EEPROM */ + ret = il->cfg->ops->lib->eeprom_ops.acquire_semaphore(il); + if (ret < 0) { + IL_ERR("Failed to acquire EEPROM semaphore.\n"); + ret = -ENOENT; + goto err; + } + + /* eeprom is an array of 16bit values */ + for (addr = 0; addr < sz; addr += sizeof(u16)) { + u32 r; + + _il_wr(il, CSR_EEPROM_REG, + CSR_EEPROM_REG_MSK_ADDR & (addr << 1)); + + ret = + _il_poll_bit(il, CSR_EEPROM_REG, + CSR_EEPROM_REG_READ_VALID_MSK, + CSR_EEPROM_REG_READ_VALID_MSK, + IL_EEPROM_ACCESS_TIMEOUT); + if (ret < 0) { + IL_ERR("Time out reading EEPROM[%d]\n", addr); + goto done; + } + r = _il_rd(il, CSR_EEPROM_REG); + e[addr / 2] = cpu_to_le16(r >> 16); + } + + D_EEPROM("NVM Type: %s, version: 0x%x\n", "EEPROM", + il_eeprom_query16(il, EEPROM_VERSION)); + + ret = 0; +done: + il->cfg->ops->lib->eeprom_ops.release_semaphore(il); + +err: + if (ret) + il_eeprom_free(il); + /* Reset chip to save power until we load uCode during "up". */ + il_apm_stop(il); +alloc_err: + return ret; +} +EXPORT_SYMBOL(il_eeprom_init); + +void +il_eeprom_free(struct il_priv *il) +{ + kfree(il->eeprom); + il->eeprom = NULL; +} +EXPORT_SYMBOL(il_eeprom_free); + +static void +il_init_band_reference(const struct il_priv *il, int eep_band, + int *eeprom_ch_count, + const struct il_eeprom_channel **eeprom_ch_info, + const u8 **eeprom_ch_idx) +{ + u32 offset = + il->cfg->ops->lib->eeprom_ops.regulatory_bands[eep_band - 1]; + switch (eep_band) { + case 1: /* 2.4GHz band */ + *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_1); + *eeprom_ch_info = + (struct il_eeprom_channel *)il_eeprom_query_addr(il, + offset); + *eeprom_ch_idx = il_eeprom_band_1; + break; + case 2: /* 4.9GHz band */ + *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_2); + *eeprom_ch_info = + (struct il_eeprom_channel *)il_eeprom_query_addr(il, + offset); + *eeprom_ch_idx = il_eeprom_band_2; + break; + case 3: /* 5.2GHz band */ + *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_3); + *eeprom_ch_info = + (struct il_eeprom_channel *)il_eeprom_query_addr(il, + offset); + *eeprom_ch_idx = il_eeprom_band_3; + break; + case 4: /* 5.5GHz band */ + *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_4); + *eeprom_ch_info = + (struct il_eeprom_channel *)il_eeprom_query_addr(il, + offset); + *eeprom_ch_idx = il_eeprom_band_4; + break; + case 5: /* 5.7GHz band */ + *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_5); + *eeprom_ch_info = + (struct il_eeprom_channel *)il_eeprom_query_addr(il, + offset); + *eeprom_ch_idx = il_eeprom_band_5; + break; + case 6: /* 2.4GHz ht40 channels */ + *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_6); + *eeprom_ch_info = + (struct il_eeprom_channel *)il_eeprom_query_addr(il, + offset); + *eeprom_ch_idx = il_eeprom_band_6; + break; + case 7: /* 5 GHz ht40 channels */ + *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_7); + *eeprom_ch_info = + (struct il_eeprom_channel *)il_eeprom_query_addr(il, + offset); + *eeprom_ch_idx = il_eeprom_band_7; + break; + default: + BUG(); + } +} + +#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \ + ? # x " " : "") +/** + * il_mod_ht40_chan_info - Copy ht40 channel info into driver's il. + * + * Does not set up a command, or touch hardware. + */ +static int +il_mod_ht40_chan_info(struct il_priv *il, enum ieee80211_band band, u16 channel, + const struct il_eeprom_channel *eeprom_ch, + u8 clear_ht40_extension_channel) +{ + struct il_channel_info *ch_info; + + ch_info = + (struct il_channel_info *)il_get_channel_info(il, band, channel); + + if (!il_is_channel_valid(ch_info)) + return -1; + + D_EEPROM("HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):" + " Ad-Hoc %ssupported\n", ch_info->channel, + il_is_channel_a_band(ch_info) ? "5.2" : "2.4", + CHECK_AND_PRINT(IBSS), CHECK_AND_PRINT(ACTIVE), + CHECK_AND_PRINT(RADAR), CHECK_AND_PRINT(WIDE), + CHECK_AND_PRINT(DFS), eeprom_ch->flags, + eeprom_ch->max_power_avg, + ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS) && + !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ? "" : "not "); + + ch_info->ht40_eeprom = *eeprom_ch; + ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg; + ch_info->ht40_flags = eeprom_ch->flags; + if (eeprom_ch->flags & EEPROM_CHANNEL_VALID) + ch_info->ht40_extension_channel &= + ~clear_ht40_extension_channel; + + return 0; +} + +#define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ + ? # x " " : "") + +/** + * il_init_channel_map - Set up driver's info for all possible channels + */ +int +il_init_channel_map(struct il_priv *il) +{ + int eeprom_ch_count = 0; + const u8 *eeprom_ch_idx = NULL; + const struct il_eeprom_channel *eeprom_ch_info = NULL; + int band, ch; + struct il_channel_info *ch_info; + + if (il->channel_count) { + D_EEPROM("Channel map already initialized.\n"); + return 0; + } + + D_EEPROM("Initializing regulatory info from EEPROM\n"); + + il->channel_count = + ARRAY_SIZE(il_eeprom_band_1) + ARRAY_SIZE(il_eeprom_band_2) + + ARRAY_SIZE(il_eeprom_band_3) + ARRAY_SIZE(il_eeprom_band_4) + + ARRAY_SIZE(il_eeprom_band_5); + + D_EEPROM("Parsing data for %d channels.\n", il->channel_count); + + il->channel_info = + kzalloc(sizeof(struct il_channel_info) * il->channel_count, + GFP_KERNEL); + if (!il->channel_info) { + IL_ERR("Could not allocate channel_info\n"); + il->channel_count = 0; + return -ENOMEM; + } + + ch_info = il->channel_info; + + /* Loop through the 5 EEPROM bands adding them in order to the + * channel map we maintain (that contains additional information than + * what just in the EEPROM) */ + for (band = 1; band <= 5; band++) { + + il_init_band_reference(il, band, &eeprom_ch_count, + &eeprom_ch_info, &eeprom_ch_idx); + + /* Loop through each band adding each of the channels */ + for (ch = 0; ch < eeprom_ch_count; ch++) { + ch_info->channel = eeprom_ch_idx[ch]; + ch_info->band = + (band == + 1) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; + + /* permanently store EEPROM's channel regulatory flags + * and max power in channel info database. */ + ch_info->eeprom = eeprom_ch_info[ch]; + + /* Copy the run-time flags so they are there even on + * invalid channels */ + ch_info->flags = eeprom_ch_info[ch].flags; + /* First write that ht40 is not enabled, and then enable + * one by one */ + ch_info->ht40_extension_channel = + IEEE80211_CHAN_NO_HT40; + + if (!(il_is_channel_valid(ch_info))) { + D_EEPROM("Ch. %d Flags %x [%sGHz] - " + "No traffic\n", ch_info->channel, + ch_info->flags, + il_is_channel_a_band(ch_info) ? "5.2" : + "2.4"); + ch_info++; + continue; + } + + /* Initialize regulatory-based run-time data */ + ch_info->max_power_avg = ch_info->curr_txpow = + eeprom_ch_info[ch].max_power_avg; + ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; + ch_info->min_power = 0; + + D_EEPROM("Ch. %d [%sGHz] " "%s%s%s%s%s%s(0x%02x %ddBm):" + " Ad-Hoc %ssupported\n", ch_info->channel, + il_is_channel_a_band(ch_info) ? "5.2" : "2.4", + CHECK_AND_PRINT_I(VALID), + CHECK_AND_PRINT_I(IBSS), + CHECK_AND_PRINT_I(ACTIVE), + CHECK_AND_PRINT_I(RADAR), + CHECK_AND_PRINT_I(WIDE), + CHECK_AND_PRINT_I(DFS), + eeprom_ch_info[ch].flags, + eeprom_ch_info[ch].max_power_avg, + ((eeprom_ch_info[ch]. + flags & EEPROM_CHANNEL_IBSS) && + !(eeprom_ch_info[ch]. + flags & EEPROM_CHANNEL_RADAR)) ? "" : + "not "); + + ch_info++; + } + } + + /* Check if we do have HT40 channels */ + if (il->cfg->ops->lib->eeprom_ops.regulatory_bands[5] == + EEPROM_REGULATORY_BAND_NO_HT40 && + il->cfg->ops->lib->eeprom_ops.regulatory_bands[6] == + EEPROM_REGULATORY_BAND_NO_HT40) + return 0; + + /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */ + for (band = 6; band <= 7; band++) { + enum ieee80211_band ieeeband; + + il_init_band_reference(il, band, &eeprom_ch_count, + &eeprom_ch_info, &eeprom_ch_idx); + + /* EEPROM band 6 is 2.4, band 7 is 5 GHz */ + ieeeband = + (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; + + /* Loop through each band adding each of the channels */ + for (ch = 0; ch < eeprom_ch_count; ch++) { + /* Set up driver's info for lower half */ + il_mod_ht40_chan_info(il, ieeeband, eeprom_ch_idx[ch], + &eeprom_ch_info[ch], + IEEE80211_CHAN_NO_HT40PLUS); + + /* Set up driver's info for upper half */ + il_mod_ht40_chan_info(il, ieeeband, + eeprom_ch_idx[ch] + 4, + &eeprom_ch_info[ch], + IEEE80211_CHAN_NO_HT40MINUS); + } + } + + return 0; +} +EXPORT_SYMBOL(il_init_channel_map); + +/* + * il_free_channel_map - undo allocations in il_init_channel_map + */ +void +il_free_channel_map(struct il_priv *il) +{ + kfree(il->channel_info); + il->channel_count = 0; +} +EXPORT_SYMBOL(il_free_channel_map); + +/** + * il_get_channel_info - Find driver's ilate channel info + * + * Based on band and channel number. + */ +const struct il_channel_info * +il_get_channel_info(const struct il_priv *il, enum ieee80211_band band, + u16 channel) +{ + int i; + + switch (band) { + case IEEE80211_BAND_5GHZ: + for (i = 14; i < il->channel_count; i++) { + if (il->channel_info[i].channel == channel) + return &il->channel_info[i]; + } + break; + case IEEE80211_BAND_2GHZ: + if (channel >= 1 && channel <= 14) + return &il->channel_info[channel - 1]; + break; + default: + BUG(); + } + + return NULL; +} +EXPORT_SYMBOL(il_get_channel_info); + +/* + * Setting power level allows the card to go to sleep when not busy. + * + * We calculate a sleep command based on the required latency, which + * we get from mac80211. In order to handle thermal throttling, we can + * also use pre-defined power levels. + */ + +/* + * This defines the old power levels. They are still used by default + * (level 1) and for thermal throttle (levels 3 through 5) + */ + +struct il_power_vec_entry { + struct il_powertable_cmd cmd; + u8 no_dtim; /* number of skip dtim */ +}; + +static void +il_power_sleep_cam_cmd(struct il_priv *il, struct il_powertable_cmd *cmd) +{ + memset(cmd, 0, sizeof(*cmd)); + + if (il->power_data.pci_pm) + cmd->flags |= IL_POWER_PCI_PM_MSK; + + D_POWER("Sleep command for CAM\n"); +} + +static int +il_set_power(struct il_priv *il, struct il_powertable_cmd *cmd) +{ + D_POWER("Sending power/sleep command\n"); + D_POWER("Flags value = 0x%08X\n", cmd->flags); + D_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout)); + D_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout)); + D_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n", + le32_to_cpu(cmd->sleep_interval[0]), + le32_to_cpu(cmd->sleep_interval[1]), + le32_to_cpu(cmd->sleep_interval[2]), + le32_to_cpu(cmd->sleep_interval[3]), + le32_to_cpu(cmd->sleep_interval[4])); + + return il_send_cmd_pdu(il, C_POWER_TBL, + sizeof(struct il_powertable_cmd), cmd); +} + +int +il_power_set_mode(struct il_priv *il, struct il_powertable_cmd *cmd, bool force) +{ + int ret; + bool update_chains; + + lockdep_assert_held(&il->mutex); + + /* Don't update the RX chain when chain noise calibration is running */ + update_chains = il->chain_noise_data.state == IL_CHAIN_NOISE_DONE || + il->chain_noise_data.state == IL_CHAIN_NOISE_ALIVE; + + if (!memcmp(&il->power_data.sleep_cmd, cmd, sizeof(*cmd)) && !force) + return 0; + + if (!il_is_ready_rf(il)) + return -EIO; + + /* scan complete use sleep_power_next, need to be updated */ + memcpy(&il->power_data.sleep_cmd_next, cmd, sizeof(*cmd)); + if (test_bit(S_SCANNING, &il->status) && !force) { + D_INFO("Defer power set mode while scanning\n"); + return 0; + } + + if (cmd->flags & IL_POWER_DRIVER_ALLOW_SLEEP_MSK) + set_bit(S_POWER_PMI, &il->status); + + ret = il_set_power(il, cmd); + if (!ret) { + if (!(cmd->flags & IL_POWER_DRIVER_ALLOW_SLEEP_MSK)) + clear_bit(S_POWER_PMI, &il->status); + + if (il->cfg->ops->lib->update_chain_flags && update_chains) + il->cfg->ops->lib->update_chain_flags(il); + else if (il->cfg->ops->lib->update_chain_flags) + D_POWER("Cannot update the power, chain noise " + "calibration running: %d\n", + il->chain_noise_data.state); + + memcpy(&il->power_data.sleep_cmd, cmd, sizeof(*cmd)); + } else + IL_ERR("set power fail, ret = %d", ret); + + return ret; +} + +int +il_power_update_mode(struct il_priv *il, bool force) +{ + struct il_powertable_cmd cmd; + + il_power_sleep_cam_cmd(il, &cmd); + return il_power_set_mode(il, &cmd, force); +} +EXPORT_SYMBOL(il_power_update_mode); + +/* initialize to default */ +void +il_power_initialize(struct il_priv *il) +{ + u16 lctl = il_pcie_link_ctl(il); + + il->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN); + + il->power_data.debug_sleep_level_override = -1; + + memset(&il->power_data.sleep_cmd, 0, sizeof(il->power_data.sleep_cmd)); +} +EXPORT_SYMBOL(il_power_initialize); + +/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after + * sending probe req. This should be set long enough to hear probe responses + * from more than one AP. */ +#define IL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */ +#define IL_ACTIVE_DWELL_TIME_52 (20) + +#define IL_ACTIVE_DWELL_FACTOR_24GHZ (3) +#define IL_ACTIVE_DWELL_FACTOR_52GHZ (2) + +/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. + * Must be set longer than active dwell time. + * For the most reliable scan, set > AP beacon interval (typically 100msec). */ +#define IL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ +#define IL_PASSIVE_DWELL_TIME_52 (10) +#define IL_PASSIVE_DWELL_BASE (100) +#define IL_CHANNEL_TUNE_TIME 5 + +static int +il_send_scan_abort(struct il_priv *il) +{ + int ret; + struct il_rx_pkt *pkt; + struct il_host_cmd cmd = { + .id = C_SCAN_ABORT, + .flags = CMD_WANT_SKB, + }; + + /* Exit instantly with error when device is not ready + * to receive scan abort command or it does not perform + * hardware scan currently */ + if (!test_bit(S_READY, &il->status) || + !test_bit(S_GEO_CONFIGURED, &il->status) || + !test_bit(S_SCAN_HW, &il->status) || + test_bit(S_FW_ERROR, &il->status) || + test_bit(S_EXIT_PENDING, &il->status)) + return -EIO; + + ret = il_send_cmd_sync(il, &cmd); + if (ret) + return ret; + + pkt = (struct il_rx_pkt *)cmd.reply_page; + if (pkt->u.status != CAN_ABORT_STATUS) { + /* The scan abort will return 1 for success or + * 2 for "failure". A failure condition can be + * due to simply not being in an active scan which + * can occur if we send the scan abort before we + * the microcode has notified us that a scan is + * completed. */ + D_SCAN("SCAN_ABORT ret %d.\n", pkt->u.status); + ret = -EIO; + } + + il_free_pages(il, cmd.reply_page); + return ret; +} + +static void +il_complete_scan(struct il_priv *il, bool aborted) +{ + /* check if scan was requested from mac80211 */ + if (il->scan_request) { + D_SCAN("Complete scan in mac80211\n"); + ieee80211_scan_completed(il->hw, aborted); + } + + il->scan_vif = NULL; + il->scan_request = NULL; +} + +void +il_force_scan_end(struct il_priv *il) +{ + lockdep_assert_held(&il->mutex); + + if (!test_bit(S_SCANNING, &il->status)) { + D_SCAN("Forcing scan end while not scanning\n"); + return; + } + + D_SCAN("Forcing scan end\n"); + clear_bit(S_SCANNING, &il->status); + clear_bit(S_SCAN_HW, &il->status); + clear_bit(S_SCAN_ABORTING, &il->status); + il_complete_scan(il, true); +} + +static void +il_do_scan_abort(struct il_priv *il) +{ + int ret; + + lockdep_assert_held(&il->mutex); + + if (!test_bit(S_SCANNING, &il->status)) { + D_SCAN("Not performing scan to abort\n"); + return; + } + + if (test_and_set_bit(S_SCAN_ABORTING, &il->status)) { + D_SCAN("Scan abort in progress\n"); + return; + } + + ret = il_send_scan_abort(il); + if (ret) { + D_SCAN("Send scan abort failed %d\n", ret); + il_force_scan_end(il); + } else + D_SCAN("Successfully send scan abort\n"); +} + +/** + * il_scan_cancel - Cancel any currently executing HW scan + */ +int +il_scan_cancel(struct il_priv *il) +{ + D_SCAN("Queuing abort scan\n"); + queue_work(il->workqueue, &il->abort_scan); + return 0; +} +EXPORT_SYMBOL(il_scan_cancel); + +/** + * il_scan_cancel_timeout - Cancel any currently executing HW scan + * @ms: amount of time to wait (in milliseconds) for scan to abort + * + */ +int +il_scan_cancel_timeout(struct il_priv *il, unsigned long ms) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(ms); + + lockdep_assert_held(&il->mutex); + + D_SCAN("Scan cancel timeout\n"); + + il_do_scan_abort(il); + + while (time_before_eq(jiffies, timeout)) { + if (!test_bit(S_SCAN_HW, &il->status)) + break; + msleep(20); + } + + return test_bit(S_SCAN_HW, &il->status); +} +EXPORT_SYMBOL(il_scan_cancel_timeout); + +/* Service response to C_SCAN (0x80) */ +static void +il_hdl_scan(struct il_priv *il, struct il_rx_buf *rxb) +{ +#ifdef CONFIG_IWLEGACY_DEBUG + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_scanreq_notification *notif = + (struct il_scanreq_notification *)pkt->u.raw; + + D_SCAN("Scan request status = 0x%x\n", notif->status); +#endif +} + +/* Service N_SCAN_START (0x82) */ +static void +il_hdl_scan_start(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_scanstart_notification *notif = + (struct il_scanstart_notification *)pkt->u.raw; + il->scan_start_tsf = le32_to_cpu(notif->tsf_low); + D_SCAN("Scan start: " "%d [802.11%s] " + "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", notif->channel, + notif->band ? "bg" : "a", le32_to_cpu(notif->tsf_high), + le32_to_cpu(notif->tsf_low), notif->status, notif->beacon_timer); +} + +/* Service N_SCAN_RESULTS (0x83) */ +static void +il_hdl_scan_results(struct il_priv *il, struct il_rx_buf *rxb) +{ +#ifdef CONFIG_IWLEGACY_DEBUG + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_scanresults_notification *notif = + (struct il_scanresults_notification *)pkt->u.raw; + + D_SCAN("Scan ch.res: " "%d [802.11%s] " "(TSF: 0x%08X:%08X) - %d " + "elapsed=%lu usec\n", notif->channel, notif->band ? "bg" : "a", + le32_to_cpu(notif->tsf_high), le32_to_cpu(notif->tsf_low), + le32_to_cpu(notif->stats[0]), + le32_to_cpu(notif->tsf_low) - il->scan_start_tsf); +#endif +} + +/* Service N_SCAN_COMPLETE (0x84) */ +static void +il_hdl_scan_complete(struct il_priv *il, struct il_rx_buf *rxb) +{ + +#ifdef CONFIG_IWLEGACY_DEBUG + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_scancomplete_notification *scan_notif = (void *)pkt->u.raw; +#endif + + D_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", + scan_notif->scanned_channels, scan_notif->tsf_low, + scan_notif->tsf_high, scan_notif->status); + + /* The HW is no longer scanning */ + clear_bit(S_SCAN_HW, &il->status); + + D_SCAN("Scan on %sGHz took %dms\n", + (il->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2", + jiffies_to_msecs(jiffies - il->scan_start)); + + queue_work(il->workqueue, &il->scan_completed); +} + +void +il_setup_rx_scan_handlers(struct il_priv *il) +{ + /* scan handlers */ + il->handlers[C_SCAN] = il_hdl_scan; + il->handlers[N_SCAN_START] = il_hdl_scan_start; + il->handlers[N_SCAN_RESULTS] = il_hdl_scan_results; + il->handlers[N_SCAN_COMPLETE] = il_hdl_scan_complete; +} +EXPORT_SYMBOL(il_setup_rx_scan_handlers); + +inline u16 +il_get_active_dwell_time(struct il_priv *il, enum ieee80211_band band, + u8 n_probes) +{ + if (band == IEEE80211_BAND_5GHZ) + return IL_ACTIVE_DWELL_TIME_52 + + IL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1); + else + return IL_ACTIVE_DWELL_TIME_24 + + IL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1); +} +EXPORT_SYMBOL(il_get_active_dwell_time); + +u16 +il_get_passive_dwell_time(struct il_priv *il, enum ieee80211_band band, + struct ieee80211_vif *vif) +{ + struct il_rxon_context *ctx = &il->ctx; + u16 value; + + u16 passive = + (band == + IEEE80211_BAND_2GHZ) ? IL_PASSIVE_DWELL_BASE + + IL_PASSIVE_DWELL_TIME_24 : IL_PASSIVE_DWELL_BASE + + IL_PASSIVE_DWELL_TIME_52; + + if (il_is_any_associated(il)) { + /* + * If we're associated, we clamp the maximum passive + * dwell time to be 98% of the smallest beacon interval + * (minus 2 * channel tune time) + */ + value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0; + if (value > IL_PASSIVE_DWELL_BASE || !value) + value = IL_PASSIVE_DWELL_BASE; + value = (value * 98) / 100 - IL_CHANNEL_TUNE_TIME * 2; + passive = min(value, passive); + } + + return passive; +} +EXPORT_SYMBOL(il_get_passive_dwell_time); + +void +il_init_scan_params(struct il_priv *il) +{ + u8 ant_idx = fls(il->hw_params.valid_tx_ant) - 1; + if (!il->scan_tx_ant[IEEE80211_BAND_5GHZ]) + il->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx; + if (!il->scan_tx_ant[IEEE80211_BAND_2GHZ]) + il->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx; +} +EXPORT_SYMBOL(il_init_scan_params); + +static int +il_scan_initiate(struct il_priv *il, struct ieee80211_vif *vif) +{ + int ret; + + lockdep_assert_held(&il->mutex); + + if (WARN_ON(!il->cfg->ops->utils->request_scan)) + return -EOPNOTSUPP; + + cancel_delayed_work(&il->scan_check); + + if (!il_is_ready_rf(il)) { + IL_WARN("Request scan called when driver not ready.\n"); + return -EIO; + } + + if (test_bit(S_SCAN_HW, &il->status)) { + D_SCAN("Multiple concurrent scan requests in parallel.\n"); + return -EBUSY; + } + + if (test_bit(S_SCAN_ABORTING, &il->status)) { + D_SCAN("Scan request while abort pending.\n"); + return -EBUSY; + } + + D_SCAN("Starting scan...\n"); + + set_bit(S_SCANNING, &il->status); + il->scan_start = jiffies; + + ret = il->cfg->ops->utils->request_scan(il, vif); + if (ret) { + clear_bit(S_SCANNING, &il->status); + return ret; + } + + queue_delayed_work(il->workqueue, &il->scan_check, + IL_SCAN_CHECK_WATCHDOG); + + return 0; +} + +int +il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct cfg80211_scan_request *req) +{ + struct il_priv *il = hw->priv; + int ret; + + D_MAC80211("enter\n"); + + if (req->n_channels == 0) + return -EINVAL; + + mutex_lock(&il->mutex); + + if (test_bit(S_SCANNING, &il->status)) { + D_SCAN("Scan already in progress.\n"); + ret = -EAGAIN; + goto out_unlock; + } + + /* mac80211 will only ask for one band at a time */ + il->scan_request = req; + il->scan_vif = vif; + il->scan_band = req->channels[0]->band; + + ret = il_scan_initiate(il, vif); + + D_MAC80211("leave\n"); + +out_unlock: + mutex_unlock(&il->mutex); + + return ret; +} +EXPORT_SYMBOL(il_mac_hw_scan); + +static void +il_bg_scan_check(struct work_struct *data) +{ + struct il_priv *il = + container_of(data, struct il_priv, scan_check.work); + + D_SCAN("Scan check work\n"); + + /* Since we are here firmware does not finish scan and + * most likely is in bad shape, so we don't bother to + * send abort command, just force scan complete to mac80211 */ + mutex_lock(&il->mutex); + il_force_scan_end(il); + mutex_unlock(&il->mutex); +} + +/** + * il_fill_probe_req - fill in all required fields and IE for probe request + */ + +u16 +il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame, + const u8 *ta, const u8 *ies, int ie_len, int left) +{ + int len = 0; + u8 *pos = NULL; + + /* Make sure there is enough space for the probe request, + * two mandatory IEs and the data */ + left -= 24; + if (left < 0) + return 0; + + frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); + memcpy(frame->da, il_bcast_addr, ETH_ALEN); + memcpy(frame->sa, ta, ETH_ALEN); + memcpy(frame->bssid, il_bcast_addr, ETH_ALEN); + frame->seq_ctrl = 0; + + len += 24; + + /* ...next IE... */ + pos = &frame->u.probe_req.variable[0]; + + /* fill in our indirect SSID IE */ + left -= 2; + if (left < 0) + return 0; + *pos++ = WLAN_EID_SSID; + *pos++ = 0; + + len += 2; + + if (WARN_ON(left < ie_len)) + return len; + + if (ies && ie_len) { + memcpy(pos, ies, ie_len); + len += ie_len; + } + + return (u16) len; +} +EXPORT_SYMBOL(il_fill_probe_req); + +static void +il_bg_abort_scan(struct work_struct *work) +{ + struct il_priv *il = container_of(work, struct il_priv, abort_scan); + + D_SCAN("Abort scan work\n"); + + /* We keep scan_check work queued in case when firmware will not + * report back scan completed notification */ + mutex_lock(&il->mutex); + il_scan_cancel_timeout(il, 200); + mutex_unlock(&il->mutex); +} + +static void +il_bg_scan_completed(struct work_struct *work) +{ + struct il_priv *il = container_of(work, struct il_priv, scan_completed); + bool aborted; + + D_SCAN("Completed scan.\n"); + + cancel_delayed_work(&il->scan_check); + + mutex_lock(&il->mutex); + + aborted = test_and_clear_bit(S_SCAN_ABORTING, &il->status); + if (aborted) + D_SCAN("Aborted scan completed.\n"); + + if (!test_and_clear_bit(S_SCANNING, &il->status)) { + D_SCAN("Scan already completed.\n"); + goto out_settings; + } + + il_complete_scan(il, aborted); + +out_settings: + /* Can we still talk to firmware ? */ + if (!il_is_ready_rf(il)) + goto out; + + /* + * We do not commit power settings while scan is pending, + * do it now if the settings changed. + */ + il_power_set_mode(il, &il->power_data.sleep_cmd_next, false); + il_set_tx_power(il, il->tx_power_next, false); + + il->cfg->ops->utils->post_scan(il); + +out: + mutex_unlock(&il->mutex); +} + +void +il_setup_scan_deferred_work(struct il_priv *il) +{ + INIT_WORK(&il->scan_completed, il_bg_scan_completed); + INIT_WORK(&il->abort_scan, il_bg_abort_scan); + INIT_DELAYED_WORK(&il->scan_check, il_bg_scan_check); +} +EXPORT_SYMBOL(il_setup_scan_deferred_work); + +void +il_cancel_scan_deferred_work(struct il_priv *il) +{ + cancel_work_sync(&il->abort_scan); + cancel_work_sync(&il->scan_completed); + + if (cancel_delayed_work_sync(&il->scan_check)) { + mutex_lock(&il->mutex); + il_force_scan_end(il); + mutex_unlock(&il->mutex); + } +} +EXPORT_SYMBOL(il_cancel_scan_deferred_work); + +/* il->sta_lock must be held */ +static void +il_sta_ucode_activate(struct il_priv *il, u8 sta_id) +{ + + if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) + IL_ERR("ACTIVATE a non DRIVER active station id %u addr %pM\n", + sta_id, il->stations[sta_id].sta.sta.addr); + + if (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) { + D_ASSOC("STA id %u addr %pM already present" + " in uCode (according to driver)\n", sta_id, + il->stations[sta_id].sta.sta.addr); + } else { + il->stations[sta_id].used |= IL_STA_UCODE_ACTIVE; + D_ASSOC("Added STA id %u addr %pM to uCode\n", sta_id, + il->stations[sta_id].sta.sta.addr); + } +} + +static int +il_process_add_sta_resp(struct il_priv *il, struct il_addsta_cmd *addsta, + struct il_rx_pkt *pkt, bool sync) +{ + u8 sta_id = addsta->sta.sta_id; + unsigned long flags; + int ret = -EIO; + + if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { + IL_ERR("Bad return from C_ADD_STA (0x%08X)\n", pkt->hdr.flags); + return ret; + } + + D_INFO("Processing response for adding station %u\n", sta_id); + + spin_lock_irqsave(&il->sta_lock, flags); + + switch (pkt->u.add_sta.status) { + case ADD_STA_SUCCESS_MSK: + D_INFO("C_ADD_STA PASSED\n"); + il_sta_ucode_activate(il, sta_id); + ret = 0; + break; + case ADD_STA_NO_ROOM_IN_TBL: + IL_ERR("Adding station %d failed, no room in table.\n", sta_id); + break; + case ADD_STA_NO_BLOCK_ACK_RESOURCE: + IL_ERR("Adding station %d failed, no block ack resource.\n", + sta_id); + break; + case ADD_STA_MODIFY_NON_EXIST_STA: + IL_ERR("Attempting to modify non-existing station %d\n", + sta_id); + break; + default: + D_ASSOC("Received C_ADD_STA:(0x%08X)\n", pkt->u.add_sta.status); + break; + } + + D_INFO("%s station id %u addr %pM\n", + il->stations[sta_id].sta.mode == + STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", sta_id, + il->stations[sta_id].sta.sta.addr); + + /* + * XXX: The MAC address in the command buffer is often changed from + * the original sent to the device. That is, the MAC address + * written to the command buffer often is not the same MAC address + * read from the command buffer when the command returns. This + * issue has not yet been resolved and this debugging is left to + * observe the problem. + */ + D_INFO("%s station according to cmd buffer %pM\n", + il->stations[sta_id].sta.mode == + STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", addsta->sta.addr); + spin_unlock_irqrestore(&il->sta_lock, flags); + + return ret; +} + +static void +il_add_sta_callback(struct il_priv *il, struct il_device_cmd *cmd, + struct il_rx_pkt *pkt) +{ + struct il_addsta_cmd *addsta = (struct il_addsta_cmd *)cmd->cmd.payload; + + il_process_add_sta_resp(il, addsta, pkt, false); + +} + +int +il_send_add_sta(struct il_priv *il, struct il_addsta_cmd *sta, u8 flags) +{ + struct il_rx_pkt *pkt = NULL; + int ret = 0; + u8 data[sizeof(*sta)]; + struct il_host_cmd cmd = { + .id = C_ADD_STA, + .flags = flags, + .data = data, + }; + u8 sta_id __maybe_unused = sta->sta.sta_id; + + D_INFO("Adding sta %u (%pM) %ssynchronously\n", sta_id, sta->sta.addr, + flags & CMD_ASYNC ? "a" : ""); + + if (flags & CMD_ASYNC) + cmd.callback = il_add_sta_callback; + else { + cmd.flags |= CMD_WANT_SKB; + might_sleep(); + } + + cmd.len = il->cfg->ops->utils->build_addsta_hcmd(sta, data); + ret = il_send_cmd(il, &cmd); + + if (ret || (flags & CMD_ASYNC)) + return ret; + + if (ret == 0) { + pkt = (struct il_rx_pkt *)cmd.reply_page; + ret = il_process_add_sta_resp(il, sta, pkt, true); + } + il_free_pages(il, cmd.reply_page); + + return ret; +} +EXPORT_SYMBOL(il_send_add_sta); + +static void +il_set_ht_add_station(struct il_priv *il, u8 idx, struct ieee80211_sta *sta, + struct il_rxon_context *ctx) +{ + struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap; + __le32 sta_flags; + u8 mimo_ps_mode; + + if (!sta || !sta_ht_inf->ht_supported) + goto done; + + mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; + D_ASSOC("spatial multiplexing power save mode: %s\n", + (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ? "static" : + (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ? "dynamic" : + "disabled"); + + sta_flags = il->stations[idx].sta.station_flags; + + sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); + + switch (mimo_ps_mode) { + case WLAN_HT_CAP_SM_PS_STATIC: + sta_flags |= STA_FLG_MIMO_DIS_MSK; + break; + case WLAN_HT_CAP_SM_PS_DYNAMIC: + sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; + break; + case WLAN_HT_CAP_SM_PS_DISABLED: + break; + default: + IL_WARN("Invalid MIMO PS mode %d\n", mimo_ps_mode); + break; + } + + sta_flags |= + cpu_to_le32((u32) sta_ht_inf-> + ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); + + sta_flags |= + cpu_to_le32((u32) sta_ht_inf-> + ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); + + if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap)) + sta_flags |= STA_FLG_HT40_EN_MSK; + else + sta_flags &= ~STA_FLG_HT40_EN_MSK; + + il->stations[idx].sta.station_flags = sta_flags; +done: + return; +} + +/** + * il_prep_station - Prepare station information for addition + * + * should be called with sta_lock held + */ +u8 +il_prep_station(struct il_priv *il, struct il_rxon_context *ctx, + const u8 *addr, bool is_ap, struct ieee80211_sta *sta) +{ + struct il_station_entry *station; + int i; + u8 sta_id = IL_INVALID_STATION; + u16 rate; + + if (is_ap) + sta_id = ctx->ap_sta_id; + else if (is_broadcast_ether_addr(addr)) + sta_id = ctx->bcast_sta_id; + else + for (i = IL_STA_ID; i < il->hw_params.max_stations; i++) { + if (!compare_ether_addr + (il->stations[i].sta.sta.addr, addr)) { + sta_id = i; + break; + } + + if (!il->stations[i].used && + sta_id == IL_INVALID_STATION) + sta_id = i; + } + + /* + * These two conditions have the same outcome, but keep them + * separate + */ + if (unlikely(sta_id == IL_INVALID_STATION)) + return sta_id; + + /* + * uCode is not able to deal with multiple requests to add a + * station. Keep track if one is in progress so that we do not send + * another. + */ + if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) { + D_INFO("STA %d already in process of being added.\n", sta_id); + return sta_id; + } + + if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) && + (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) && + !compare_ether_addr(il->stations[sta_id].sta.sta.addr, addr)) { + D_ASSOC("STA %d (%pM) already added, not adding again.\n", + sta_id, addr); + return sta_id; + } + + station = &il->stations[sta_id]; + station->used = IL_STA_DRIVER_ACTIVE; + D_ASSOC("Add STA to driver ID %d: %pM\n", sta_id, addr); + il->num_stations++; + + /* Set up the C_ADD_STA command to send to device */ + memset(&station->sta, 0, sizeof(struct il_addsta_cmd)); + memcpy(station->sta.sta.addr, addr, ETH_ALEN); + station->sta.mode = 0; + station->sta.sta.sta_id = sta_id; + station->sta.station_flags = ctx->station_flags; + station->ctxid = ctx->ctxid; + + if (sta) { + struct il_station_priv_common *sta_priv; + + sta_priv = (void *)sta->drv_priv; + sta_priv->ctx = ctx; + } + + /* + * OK to call unconditionally, since local stations (IBSS BSSID + * STA and broadcast STA) pass in a NULL sta, and mac80211 + * doesn't allow HT IBSS. + */ + il_set_ht_add_station(il, sta_id, sta, ctx); + + /* 3945 only */ + rate = (il->band == IEEE80211_BAND_5GHZ) ? RATE_6M_PLCP : RATE_1M_PLCP; + /* Turn on both antennas for the station... */ + station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK); + + return sta_id; + +} +EXPORT_SYMBOL_GPL(il_prep_station); + +#define STA_WAIT_TIMEOUT (HZ/2) + +/** + * il_add_station_common - + */ +int +il_add_station_common(struct il_priv *il, struct il_rxon_context *ctx, + const u8 *addr, bool is_ap, struct ieee80211_sta *sta, + u8 *sta_id_r) +{ + unsigned long flags_spin; + int ret = 0; + u8 sta_id; + struct il_addsta_cmd sta_cmd; + + *sta_id_r = 0; + spin_lock_irqsave(&il->sta_lock, flags_spin); + sta_id = il_prep_station(il, ctx, addr, is_ap, sta); + if (sta_id == IL_INVALID_STATION) { + IL_ERR("Unable to prepare station %pM for addition\n", addr); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + return -EINVAL; + } + + /* + * uCode is not able to deal with multiple requests to add a + * station. Keep track if one is in progress so that we do not send + * another. + */ + if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) { + D_INFO("STA %d already in process of being added.\n", sta_id); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + return -EEXIST; + } + + if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) && + (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) { + D_ASSOC("STA %d (%pM) already added, not adding again.\n", + sta_id, addr); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + return -EEXIST; + } + + il->stations[sta_id].used |= IL_STA_UCODE_INPROGRESS; + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + + /* Add station to device's station table */ + ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC); + if (ret) { + spin_lock_irqsave(&il->sta_lock, flags_spin); + IL_ERR("Adding station %pM failed.\n", + il->stations[sta_id].sta.sta.addr); + il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE; + il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS; + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + } + *sta_id_r = sta_id; + return ret; +} +EXPORT_SYMBOL(il_add_station_common); + +/** + * il_sta_ucode_deactivate - deactivate ucode status for a station + * + * il->sta_lock must be held + */ +static void +il_sta_ucode_deactivate(struct il_priv *il, u8 sta_id) +{ + /* Ucode must be active and driver must be non active */ + if ((il->stations[sta_id]. + used & (IL_STA_UCODE_ACTIVE | IL_STA_DRIVER_ACTIVE)) != + IL_STA_UCODE_ACTIVE) + IL_ERR("removed non active STA %u\n", sta_id); + + il->stations[sta_id].used &= ~IL_STA_UCODE_ACTIVE; + + memset(&il->stations[sta_id], 0, sizeof(struct il_station_entry)); + D_ASSOC("Removed STA %u\n", sta_id); +} + +static int +il_send_remove_station(struct il_priv *il, const u8 * addr, int sta_id, + bool temporary) +{ + struct il_rx_pkt *pkt; + int ret; + + unsigned long flags_spin; + struct il_rem_sta_cmd rm_sta_cmd; + + struct il_host_cmd cmd = { + .id = C_REM_STA, + .len = sizeof(struct il_rem_sta_cmd), + .flags = CMD_SYNC, + .data = &rm_sta_cmd, + }; + + memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); + rm_sta_cmd.num_sta = 1; + memcpy(&rm_sta_cmd.addr, addr, ETH_ALEN); + + cmd.flags |= CMD_WANT_SKB; + + ret = il_send_cmd(il, &cmd); + + if (ret) + return ret; + + pkt = (struct il_rx_pkt *)cmd.reply_page; + if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { + IL_ERR("Bad return from C_REM_STA (0x%08X)\n", pkt->hdr.flags); + ret = -EIO; + } + + if (!ret) { + switch (pkt->u.rem_sta.status) { + case REM_STA_SUCCESS_MSK: + if (!temporary) { + spin_lock_irqsave(&il->sta_lock, flags_spin); + il_sta_ucode_deactivate(il, sta_id); + spin_unlock_irqrestore(&il->sta_lock, + flags_spin); + } + D_ASSOC("C_REM_STA PASSED\n"); + break; + default: + ret = -EIO; + IL_ERR("C_REM_STA failed\n"); + break; + } + } + il_free_pages(il, cmd.reply_page); + + return ret; +} + +/** + * il_remove_station - Remove driver's knowledge of station. + */ +int +il_remove_station(struct il_priv *il, const u8 sta_id, const u8 * addr) +{ + unsigned long flags; + + if (!il_is_ready(il)) { + D_INFO("Unable to remove station %pM, device not ready.\n", + addr); + /* + * It is typical for stations to be removed when we are + * going down. Return success since device will be down + * soon anyway + */ + return 0; + } + + D_ASSOC("Removing STA from driver:%d %pM\n", sta_id, addr); + + if (WARN_ON(sta_id == IL_INVALID_STATION)) + return -EINVAL; + + spin_lock_irqsave(&il->sta_lock, flags); + + if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) { + D_INFO("Removing %pM but non DRIVER active\n", addr); + goto out_err; + } + + if (!(il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) { + D_INFO("Removing %pM but non UCODE active\n", addr); + goto out_err; + } + + if (il->stations[sta_id].used & IL_STA_LOCAL) { + kfree(il->stations[sta_id].lq); + il->stations[sta_id].lq = NULL; + } + + il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE; + + il->num_stations--; + + BUG_ON(il->num_stations < 0); + + spin_unlock_irqrestore(&il->sta_lock, flags); + + return il_send_remove_station(il, addr, sta_id, false); +out_err: + spin_unlock_irqrestore(&il->sta_lock, flags); + return -EINVAL; +} +EXPORT_SYMBOL_GPL(il_remove_station); + +/** + * il_clear_ucode_stations - clear ucode station table bits + * + * This function clears all the bits in the driver indicating + * which stations are active in the ucode. Call when something + * other than explicit station management would cause this in + * the ucode, e.g. unassociated RXON. + */ +void +il_clear_ucode_stations(struct il_priv *il, struct il_rxon_context *ctx) +{ + int i; + unsigned long flags_spin; + bool cleared = false; + + D_INFO("Clearing ucode stations in driver\n"); + + spin_lock_irqsave(&il->sta_lock, flags_spin); + for (i = 0; i < il->hw_params.max_stations; i++) { + if (ctx && ctx->ctxid != il->stations[i].ctxid) + continue; + + if (il->stations[i].used & IL_STA_UCODE_ACTIVE) { + D_INFO("Clearing ucode active for station %d\n", i); + il->stations[i].used &= ~IL_STA_UCODE_ACTIVE; + cleared = true; + } + } + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + + if (!cleared) + D_INFO("No active stations found to be cleared\n"); +} +EXPORT_SYMBOL(il_clear_ucode_stations); + +/** + * il_restore_stations() - Restore driver known stations to device + * + * All stations considered active by driver, but not present in ucode, is + * restored. + * + * Function sleeps. + */ +void +il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx) +{ + struct il_addsta_cmd sta_cmd; + struct il_link_quality_cmd lq; + unsigned long flags_spin; + int i; + bool found = false; + int ret; + bool send_lq; + + if (!il_is_ready(il)) { + D_INFO("Not ready yet, not restoring any stations.\n"); + return; + } + + D_ASSOC("Restoring all known stations ... start.\n"); + spin_lock_irqsave(&il->sta_lock, flags_spin); + for (i = 0; i < il->hw_params.max_stations; i++) { + if (ctx->ctxid != il->stations[i].ctxid) + continue; + if ((il->stations[i].used & IL_STA_DRIVER_ACTIVE) && + !(il->stations[i].used & IL_STA_UCODE_ACTIVE)) { + D_ASSOC("Restoring sta %pM\n", + il->stations[i].sta.sta.addr); + il->stations[i].sta.mode = 0; + il->stations[i].used |= IL_STA_UCODE_INPROGRESS; + found = true; + } + } + + for (i = 0; i < il->hw_params.max_stations; i++) { + if ((il->stations[i].used & IL_STA_UCODE_INPROGRESS)) { + memcpy(&sta_cmd, &il->stations[i].sta, + sizeof(struct il_addsta_cmd)); + send_lq = false; + if (il->stations[i].lq) { + memcpy(&lq, il->stations[i].lq, + sizeof(struct il_link_quality_cmd)); + send_lq = true; + } + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC); + if (ret) { + spin_lock_irqsave(&il->sta_lock, flags_spin); + IL_ERR("Adding station %pM failed.\n", + il->stations[i].sta.sta.addr); + il->stations[i].used &= ~IL_STA_DRIVER_ACTIVE; + il->stations[i].used &= + ~IL_STA_UCODE_INPROGRESS; + spin_unlock_irqrestore(&il->sta_lock, + flags_spin); + } + /* + * Rate scaling has already been initialized, send + * current LQ command + */ + if (send_lq) + il_send_lq_cmd(il, ctx, &lq, CMD_SYNC, true); + spin_lock_irqsave(&il->sta_lock, flags_spin); + il->stations[i].used &= ~IL_STA_UCODE_INPROGRESS; + } + } + + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + if (!found) + D_INFO("Restoring all known stations" + " .... no stations to be restored.\n"); + else + D_INFO("Restoring all known stations" " .... complete.\n"); +} +EXPORT_SYMBOL(il_restore_stations); + +int +il_get_free_ucode_key_idx(struct il_priv *il) +{ + int i; + + for (i = 0; i < il->sta_key_max_num; i++) + if (!test_and_set_bit(i, &il->ucode_key_table)) + return i; + + return WEP_INVALID_OFFSET; +} +EXPORT_SYMBOL(il_get_free_ucode_key_idx); + +void +il_dealloc_bcast_stations(struct il_priv *il) +{ + unsigned long flags; + int i; + + spin_lock_irqsave(&il->sta_lock, flags); + for (i = 0; i < il->hw_params.max_stations; i++) { + if (!(il->stations[i].used & IL_STA_BCAST)) + continue; + + il->stations[i].used &= ~IL_STA_UCODE_ACTIVE; + il->num_stations--; + BUG_ON(il->num_stations < 0); + kfree(il->stations[i].lq); + il->stations[i].lq = NULL; + } + spin_unlock_irqrestore(&il->sta_lock, flags); +} +EXPORT_SYMBOL_GPL(il_dealloc_bcast_stations); + +#ifdef CONFIG_IWLEGACY_DEBUG +static void +il_dump_lq_cmd(struct il_priv *il, struct il_link_quality_cmd *lq) +{ + int i; + D_RATE("lq station id 0x%x\n", lq->sta_id); + D_RATE("lq ant 0x%X 0x%X\n", lq->general_params.single_stream_ant_msk, + lq->general_params.dual_stream_ant_msk); + + for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) + D_RATE("lq idx %d 0x%X\n", i, lq->rs_table[i].rate_n_flags); +} +#else +static inline void +il_dump_lq_cmd(struct il_priv *il, struct il_link_quality_cmd *lq) +{ +} +#endif + +/** + * il_is_lq_table_valid() - Test one aspect of LQ cmd for validity + * + * It sometimes happens when a HT rate has been in use and we + * loose connectivity with AP then mac80211 will first tell us that the + * current channel is not HT anymore before removing the station. In such a + * scenario the RXON flags will be updated to indicate we are not + * communicating HT anymore, but the LQ command may still contain HT rates. + * Test for this to prevent driver from sending LQ command between the time + * RXON flags are updated and when LQ command is updated. + */ +static bool +il_is_lq_table_valid(struct il_priv *il, struct il_rxon_context *ctx, + struct il_link_quality_cmd *lq) +{ + int i; + + if (ctx->ht.enabled) + return true; + + D_INFO("Channel %u is not an HT channel\n", ctx->active.channel); + for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { + if (le32_to_cpu(lq->rs_table[i].rate_n_flags) & RATE_MCS_HT_MSK) { + D_INFO("idx %d of LQ expects HT channel\n", i); + return false; + } + } + return true; +} + +/** + * il_send_lq_cmd() - Send link quality command + * @init: This command is sent as part of station initialization right + * after station has been added. + * + * The link quality command is sent as the last step of station creation. + * This is the special case in which init is set and we call a callback in + * this case to clear the state indicating that station creation is in + * progress. + */ +int +il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx, + struct il_link_quality_cmd *lq, u8 flags, bool init) +{ + int ret = 0; + unsigned long flags_spin; + + struct il_host_cmd cmd = { + .id = C_TX_LINK_QUALITY_CMD, + .len = sizeof(struct il_link_quality_cmd), + .flags = flags, + .data = lq, + }; + + if (WARN_ON(lq->sta_id == IL_INVALID_STATION)) + return -EINVAL; + + spin_lock_irqsave(&il->sta_lock, flags_spin); + if (!(il->stations[lq->sta_id].used & IL_STA_DRIVER_ACTIVE)) { + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + return -EINVAL; + } + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + + il_dump_lq_cmd(il, lq); + BUG_ON(init && (cmd.flags & CMD_ASYNC)); + + if (il_is_lq_table_valid(il, ctx, lq)) + ret = il_send_cmd(il, &cmd); + else + ret = -EINVAL; + + if (cmd.flags & CMD_ASYNC) + return ret; + + if (init) { + D_INFO("init LQ command complete," + " clearing sta addition status for sta %d\n", + lq->sta_id); + spin_lock_irqsave(&il->sta_lock, flags_spin); + il->stations[lq->sta_id].used &= ~IL_STA_UCODE_INPROGRESS; + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + } + return ret; +} +EXPORT_SYMBOL(il_send_lq_cmd); + +int +il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct il_priv *il = hw->priv; + struct il_station_priv_common *sta_common = (void *)sta->drv_priv; + int ret; + + D_INFO("received request to remove station %pM\n", sta->addr); + mutex_lock(&il->mutex); + D_INFO("proceeding to remove station %pM\n", sta->addr); + ret = il_remove_station(il, sta_common->sta_id, sta->addr); + if (ret) + IL_ERR("Error removing station %pM\n", sta->addr); + mutex_unlock(&il->mutex); + return ret; +} +EXPORT_SYMBOL(il_mac_sta_remove); + +/************************** RX-FUNCTIONS ****************************/ +/* + * Rx theory of operation + * + * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs), + * each of which point to Receive Buffers to be filled by the NIC. These get + * used not only for Rx frames, but for any command response or notification + * from the NIC. The driver and NIC manage the Rx buffers by means + * of idxes into the circular buffer. + * + * Rx Queue Indexes + * The host/firmware share two idx registers for managing the Rx buffers. + * + * The READ idx maps to the first position that the firmware may be writing + * to -- the driver can read up to (but not including) this position and get + * good data. + * The READ idx is managed by the firmware once the card is enabled. + * + * The WRITE idx maps to the last position the driver has read from -- the + * position preceding WRITE is the last slot the firmware can place a packet. + * + * The queue is empty (no good data) if WRITE = READ - 1, and is full if + * WRITE = READ. + * + * During initialization, the host sets up the READ queue position to the first + * IDX position, and WRITE to the last (READ - 1 wrapped) + * + * When the firmware places a packet in a buffer, it will advance the READ idx + * and fire the RX interrupt. The driver can then query the READ idx and + * process as many packets as possible, moving the WRITE idx forward as it + * resets the Rx queue buffers with new memory. + * + * The management in the driver is as follows: + * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When + * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled + * to replenish the iwl->rxq->rx_free. + * + In il_rx_replenish (scheduled) if 'processed' != 'read' then the + * iwl->rxq is replenished and the READ IDX is updated (updating the + * 'processed' and 'read' driver idxes as well) + * + A received packet is processed and handed to the kernel network stack, + * detached from the iwl->rxq. The driver 'processed' idx is updated. + * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free + * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ + * IDX is not incremented and iwl->status(RX_STALLED) is set. If there + * were enough free buffers and RX_STALLED is set it is cleared. + * + * + * Driver sequence: + * + * il_rx_queue_alloc() Allocates rx_free + * il_rx_replenish() Replenishes rx_free list from rx_used, and calls + * il_rx_queue_restock + * il_rx_queue_restock() Moves available buffers from rx_free into Rx + * queue, updates firmware pointers, and updates + * the WRITE idx. If insufficient rx_free buffers + * are available, schedules il_rx_replenish + * + * -- enable interrupts -- + * ISR - il_rx() Detach il_rx_bufs from pool up to the + * READ IDX, detaching the SKB from the pool. + * Moves the packet buffer from queue to rx_used. + * Calls il_rx_queue_restock to refill any empty + * slots. + * ... + * + */ + +/** + * il_rx_queue_space - Return number of free slots available in queue. + */ +int +il_rx_queue_space(const struct il_rx_queue *q) +{ + int s = q->read - q->write; + if (s <= 0) + s += RX_QUEUE_SIZE; + /* keep some buffer to not confuse full and empty queue */ + s -= 2; + if (s < 0) + s = 0; + return s; +} +EXPORT_SYMBOL(il_rx_queue_space); + +/** + * il_rx_queue_update_write_ptr - Update the write pointer for the RX queue + */ +void +il_rx_queue_update_write_ptr(struct il_priv *il, struct il_rx_queue *q) +{ + unsigned long flags; + u32 rx_wrt_ptr_reg = il->hw_params.rx_wrt_ptr_reg; + u32 reg; + + spin_lock_irqsave(&q->lock, flags); + + if (q->need_update == 0) + goto exit_unlock; + + /* If power-saving is in use, make sure device is awake */ + if (test_bit(S_POWER_PMI, &il->status)) { + reg = _il_rd(il, CSR_UCODE_DRV_GP1); + + if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { + D_INFO("Rx queue requesting wakeup," " GP1 = 0x%x\n", + reg); + il_set_bit(il, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + goto exit_unlock; + } + + q->write_actual = (q->write & ~0x7); + il_wr(il, rx_wrt_ptr_reg, q->write_actual); + + /* Else device is assumed to be awake */ + } else { + /* Device expects a multiple of 8 */ + q->write_actual = (q->write & ~0x7); + il_wr(il, rx_wrt_ptr_reg, q->write_actual); + } + + q->need_update = 0; + +exit_unlock: + spin_unlock_irqrestore(&q->lock, flags); +} +EXPORT_SYMBOL(il_rx_queue_update_write_ptr); + +int +il_rx_queue_alloc(struct il_priv *il) +{ + struct il_rx_queue *rxq = &il->rxq; + struct device *dev = &il->pci_dev->dev; + int i; + + spin_lock_init(&rxq->lock); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ + rxq->bd = + dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma, + GFP_KERNEL); + if (!rxq->bd) + goto err_bd; + + rxq->rb_stts = + dma_alloc_coherent(dev, sizeof(struct il_rb_status), + &rxq->rb_stts_dma, GFP_KERNEL); + if (!rxq->rb_stts) + goto err_rb; + + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->write_actual = 0; + rxq->free_count = 0; + rxq->need_update = 0; + return 0; + +err_rb: + dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, + rxq->bd_dma); +err_bd: + return -ENOMEM; +} +EXPORT_SYMBOL(il_rx_queue_alloc); + +void +il_hdl_spectrum_measurement(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_spectrum_notification *report = &(pkt->u.spectrum_notif); + + if (!report->state) { + D_11H("Spectrum Measure Notification: Start\n"); + return; + } + + memcpy(&il->measure_report, report, sizeof(*report)); + il->measurement_status |= MEASUREMENT_READY; +} +EXPORT_SYMBOL(il_hdl_spectrum_measurement); + +/* + * returns non-zero if packet should be dropped + */ +int +il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr, + u32 decrypt_res, struct ieee80211_rx_status *stats) +{ + u16 fc = le16_to_cpu(hdr->frame_control); + + /* + * All contexts have the same setting here due to it being + * a module parameter, so OK to check any context. + */ + if (il->ctx.active.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) + return 0; + + if (!(fc & IEEE80211_FCTL_PROTECTED)) + return 0; + + D_RX("decrypt_res:0x%x\n", decrypt_res); + switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { + case RX_RES_STATUS_SEC_TYPE_TKIP: + /* The uCode has got a bad phase 1 Key, pushes the packet. + * Decryption will be done in SW. */ + if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == + RX_RES_STATUS_BAD_KEY_TTAK) + break; + + case RX_RES_STATUS_SEC_TYPE_WEP: + if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == + RX_RES_STATUS_BAD_ICV_MIC) { + /* bad ICV, the packet is destroyed since the + * decryption is inplace, drop it */ + D_RX("Packet destroyed\n"); + return -1; + } + case RX_RES_STATUS_SEC_TYPE_CCMP: + if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == + RX_RES_STATUS_DECRYPT_OK) { + D_RX("hw decrypt successfully!!!\n"); + stats->flag |= RX_FLAG_DECRYPTED; + } + break; + + default: + break; + } + return 0; +} +EXPORT_SYMBOL(il_set_decrypted_flag); + +/** + * il_txq_update_write_ptr - Send new write idx to hardware + */ +void +il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq) +{ + u32 reg = 0; + int txq_id = txq->q.id; + + if (txq->need_update == 0) + return; + + /* if we're trying to save power */ + if (test_bit(S_POWER_PMI, &il->status)) { + /* wake up nic if it's powered down ... + * uCode will wake up, and interrupt us again, so next + * time we'll skip this part. */ + reg = _il_rd(il, CSR_UCODE_DRV_GP1); + + if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { + D_INFO("Tx queue %d requesting wakeup," " GP1 = 0x%x\n", + txq_id, reg); + il_set_bit(il, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + return; + } + + il_wr(il, HBUS_TARG_WRPTR, txq->q.write_ptr | (txq_id << 8)); + + /* + * else not in power-save mode, + * uCode will never sleep when we're + * trying to tx (during RFKILL, we're not trying to tx). + */ + } else + _il_wr(il, HBUS_TARG_WRPTR, txq->q.write_ptr | (txq_id << 8)); + txq->need_update = 0; +} +EXPORT_SYMBOL(il_txq_update_write_ptr); + +/** + * il_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's + */ +void +il_tx_queue_unmap(struct il_priv *il, int txq_id) +{ + struct il_tx_queue *txq = &il->txq[txq_id]; + struct il_queue *q = &txq->q; + + if (q->n_bd == 0) + return; + + while (q->write_ptr != q->read_ptr) { + il->cfg->ops->lib->txq_free_tfd(il, txq); + q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd); + } +} +EXPORT_SYMBOL(il_tx_queue_unmap); + +/** + * il_tx_queue_free - Deallocate DMA queue. + * @txq: Transmit queue to deallocate. + * + * Empty queue by removing and destroying all BD's. + * Free all buffers. + * 0-fill, but do not free "txq" descriptor structure. + */ +void +il_tx_queue_free(struct il_priv *il, int txq_id) +{ + struct il_tx_queue *txq = &il->txq[txq_id]; + struct device *dev = &il->pci_dev->dev; + int i; + + il_tx_queue_unmap(il, txq_id); + + /* De-alloc array of command/tx buffers */ + for (i = 0; i < TFD_TX_CMD_SLOTS; i++) + kfree(txq->cmd[i]); + + /* De-alloc circular buffer of TFDs */ + if (txq->q.n_bd) + dma_free_coherent(dev, il->hw_params.tfd_size * txq->q.n_bd, + txq->tfds, txq->q.dma_addr); + + /* De-alloc array of per-TFD driver data */ + kfree(txq->txb); + txq->txb = NULL; + + /* deallocate arrays */ + kfree(txq->cmd); + kfree(txq->meta); + txq->cmd = NULL; + txq->meta = NULL; + + /* 0-fill queue descriptor structure */ + memset(txq, 0, sizeof(*txq)); +} +EXPORT_SYMBOL(il_tx_queue_free); + +/** + * il_cmd_queue_unmap - Unmap any remaining DMA mappings from command queue + */ +void +il_cmd_queue_unmap(struct il_priv *il) +{ + struct il_tx_queue *txq = &il->txq[il->cmd_queue]; + struct il_queue *q = &txq->q; + int i; + + if (q->n_bd == 0) + return; + + while (q->read_ptr != q->write_ptr) { + i = il_get_cmd_idx(q, q->read_ptr, 0); + + if (txq->meta[i].flags & CMD_MAPPED) { + pci_unmap_single(il->pci_dev, + dma_unmap_addr(&txq->meta[i], mapping), + dma_unmap_len(&txq->meta[i], len), + PCI_DMA_BIDIRECTIONAL); + txq->meta[i].flags = 0; + } + + q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd); + } + + i = q->n_win; + if (txq->meta[i].flags & CMD_MAPPED) { + pci_unmap_single(il->pci_dev, + dma_unmap_addr(&txq->meta[i], mapping), + dma_unmap_len(&txq->meta[i], len), + PCI_DMA_BIDIRECTIONAL); + txq->meta[i].flags = 0; + } +} +EXPORT_SYMBOL(il_cmd_queue_unmap); + +/** + * il_cmd_queue_free - Deallocate DMA queue. + * @txq: Transmit queue to deallocate. + * + * Empty queue by removing and destroying all BD's. + * Free all buffers. + * 0-fill, but do not free "txq" descriptor structure. + */ +void +il_cmd_queue_free(struct il_priv *il) +{ + struct il_tx_queue *txq = &il->txq[il->cmd_queue]; + struct device *dev = &il->pci_dev->dev; + int i; + + il_cmd_queue_unmap(il); + + /* De-alloc array of command/tx buffers */ + for (i = 0; i <= TFD_CMD_SLOTS; i++) + kfree(txq->cmd[i]); + + /* De-alloc circular buffer of TFDs */ + if (txq->q.n_bd) + dma_free_coherent(dev, il->hw_params.tfd_size * txq->q.n_bd, + txq->tfds, txq->q.dma_addr); + + /* deallocate arrays */ + kfree(txq->cmd); + kfree(txq->meta); + txq->cmd = NULL; + txq->meta = NULL; + + /* 0-fill queue descriptor structure */ + memset(txq, 0, sizeof(*txq)); +} +EXPORT_SYMBOL(il_cmd_queue_free); + +/*************** DMA-QUEUE-GENERAL-FUNCTIONS ***** + * DMA services + * + * Theory of operation + * + * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer + * of buffer descriptors, each of which points to one or more data buffers for + * the device to read from or fill. Driver and device exchange status of each + * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty + * entries in each circular buffer, to protect against confusing empty and full + * queue states. + * + * The device reads or writes the data in the queues via the device's several + * DMA/FIFO channels. Each queue is mapped to a single DMA channel. + * + * For Tx queue, there are low mark and high mark limits. If, after queuing + * the packet for Tx, free space become < low mark, Tx queue stopped. When + * reclaiming packets (on 'tx done IRQ), if free space become > high mark, + * Tx queue resumed. + * + * See more detailed info in 4965.h. + ***************************************************/ + +int +il_queue_space(const struct il_queue *q) +{ + int s = q->read_ptr - q->write_ptr; + + if (q->read_ptr > q->write_ptr) + s -= q->n_bd; + + if (s <= 0) + s += q->n_win; + /* keep some reserve to not confuse empty and full situations */ + s -= 2; + if (s < 0) + s = 0; + return s; +} +EXPORT_SYMBOL(il_queue_space); + + +/** + * il_queue_init - Initialize queue's high/low-water and read/write idxes + */ +static int +il_queue_init(struct il_priv *il, struct il_queue *q, int count, int slots_num, + u32 id) +{ + q->n_bd = count; + q->n_win = slots_num; + q->id = id; + + /* count must be power-of-two size, otherwise il_queue_inc_wrap + * and il_queue_dec_wrap are broken. */ + BUG_ON(!is_power_of_2(count)); + + /* slots_num must be power-of-two size, otherwise + * il_get_cmd_idx is broken. */ + BUG_ON(!is_power_of_2(slots_num)); + + q->low_mark = q->n_win / 4; + if (q->low_mark < 4) + q->low_mark = 4; + + q->high_mark = q->n_win / 8; + if (q->high_mark < 2) + q->high_mark = 2; + + q->write_ptr = q->read_ptr = 0; + + return 0; +} + +/** + * il_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue + */ +static int +il_tx_queue_alloc(struct il_priv *il, struct il_tx_queue *txq, u32 id) +{ + struct device *dev = &il->pci_dev->dev; + size_t tfd_sz = il->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; + + /* Driver ilate data, only for Tx (not command) queues, + * not shared with device. */ + if (id != il->cmd_queue) { + txq->txb = + kzalloc(sizeof(txq->txb[0]) * TFD_QUEUE_SIZE_MAX, + GFP_KERNEL); + if (!txq->txb) { + IL_ERR("kmalloc for auxiliary BD " + "structures failed\n"); + goto error; + } + } else { + txq->txb = NULL; + } + + /* Circular buffer of transmit frame descriptors (TFDs), + * shared with device */ + txq->tfds = + dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr, GFP_KERNEL); + if (!txq->tfds) { + IL_ERR("pci_alloc_consistent(%zd) failed\n", tfd_sz); + goto error; + } + txq->q.id = id; + + return 0; + +error: + kfree(txq->txb); + txq->txb = NULL; + + return -ENOMEM; +} + +/** + * il_tx_queue_init - Allocate and initialize one tx/cmd queue + */ +int +il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num, + u32 txq_id) +{ + int i, len; + int ret; + int actual_slots = slots_num; + + /* + * Alloc buffer array for commands (Tx or other types of commands). + * For the command queue (#4/#9), allocate command space + one big + * command for scan, since scan command is very huge; the system will + * not have two scans at the same time, so only one is needed. + * For normal Tx queues (all other queues), no super-size command + * space is needed. + */ + if (txq_id == il->cmd_queue) + actual_slots++; + + txq->meta = + kzalloc(sizeof(struct il_cmd_meta) * actual_slots, GFP_KERNEL); + txq->cmd = + kzalloc(sizeof(struct il_device_cmd *) * actual_slots, GFP_KERNEL); + + if (!txq->meta || !txq->cmd) + goto out_free_arrays; + + len = sizeof(struct il_device_cmd); + for (i = 0; i < actual_slots; i++) { + /* only happens for cmd queue */ + if (i == slots_num) + len = IL_MAX_CMD_SIZE; + + txq->cmd[i] = kmalloc(len, GFP_KERNEL); + if (!txq->cmd[i]) + goto err; + } + + /* Alloc driver data array and TFD circular buffer */ + ret = il_tx_queue_alloc(il, txq, txq_id); + if (ret) + goto err; + + txq->need_update = 0; + + /* + * For the default queues 0-3, set up the swq_id + * already -- all others need to get one later + * (if they need one at all). + */ + if (txq_id < 4) + il_set_swq_id(txq, txq_id, txq_id); + + /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise + * il_queue_inc_wrap and il_queue_dec_wrap are broken. */ + BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); + + /* Initialize queue's high/low-water marks, and head/tail idxes */ + il_queue_init(il, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); + + /* Tell device where to find queue */ + il->cfg->ops->lib->txq_init(il, txq); + + return 0; +err: + for (i = 0; i < actual_slots; i++) + kfree(txq->cmd[i]); +out_free_arrays: + kfree(txq->meta); + kfree(txq->cmd); + + return -ENOMEM; +} +EXPORT_SYMBOL(il_tx_queue_init); + +void +il_tx_queue_reset(struct il_priv *il, struct il_tx_queue *txq, int slots_num, + u32 txq_id) +{ + int actual_slots = slots_num; + + if (txq_id == il->cmd_queue) + actual_slots++; + + memset(txq->meta, 0, sizeof(struct il_cmd_meta) * actual_slots); + + txq->need_update = 0; + + /* Initialize queue's high/low-water marks, and head/tail idxes */ + il_queue_init(il, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); + + /* Tell device where to find queue */ + il->cfg->ops->lib->txq_init(il, txq); +} +EXPORT_SYMBOL(il_tx_queue_reset); + +/*************** HOST COMMAND QUEUE FUNCTIONS *****/ + +/** + * il_enqueue_hcmd - enqueue a uCode command + * @il: device ilate data point + * @cmd: a point to the ucode command structure + * + * The function returns < 0 values to indicate the operation is + * failed. On success, it turns the idx (> 0) of command in the + * command queue. + */ +int +il_enqueue_hcmd(struct il_priv *il, struct il_host_cmd *cmd) +{ + struct il_tx_queue *txq = &il->txq[il->cmd_queue]; + struct il_queue *q = &txq->q; + struct il_device_cmd *out_cmd; + struct il_cmd_meta *out_meta; + dma_addr_t phys_addr; + unsigned long flags; + int len; + u32 idx; + u16 fix_size; + + cmd->len = il->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len); + fix_size = (u16) (cmd->len + sizeof(out_cmd->hdr)); + + /* If any of the command structures end up being larger than + * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then + * we will need to increase the size of the TFD entries + * Also, check to see if command buffer should not exceed the size + * of device_cmd and max_cmd_size. */ + BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) && + !(cmd->flags & CMD_SIZE_HUGE)); + BUG_ON(fix_size > IL_MAX_CMD_SIZE); + + if (il_is_rfkill(il) || il_is_ctkill(il)) { + IL_WARN("Not sending command - %s KILL\n", + il_is_rfkill(il) ? "RF" : "CT"); + return -EIO; + } + + spin_lock_irqsave(&il->hcmd_lock, flags); + + if (il_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) { + spin_unlock_irqrestore(&il->hcmd_lock, flags); + + IL_ERR("Restarting adapter due to command queue full\n"); + queue_work(il->workqueue, &il->restart); + return -ENOSPC; + } + + idx = il_get_cmd_idx(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE); + out_cmd = txq->cmd[idx]; + out_meta = &txq->meta[idx]; + + if (WARN_ON(out_meta->flags & CMD_MAPPED)) { + spin_unlock_irqrestore(&il->hcmd_lock, flags); + return -ENOSPC; + } + + memset(out_meta, 0, sizeof(*out_meta)); /* re-initialize to NULL */ + out_meta->flags = cmd->flags | CMD_MAPPED; + if (cmd->flags & CMD_WANT_SKB) + out_meta->source = cmd; + if (cmd->flags & CMD_ASYNC) + out_meta->callback = cmd->callback; + + out_cmd->hdr.cmd = cmd->id; + memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len); + + /* At this point, the out_cmd now has all of the incoming cmd + * information */ + + out_cmd->hdr.flags = 0; + out_cmd->hdr.sequence = + cpu_to_le16(QUEUE_TO_SEQ(il->cmd_queue) | IDX_TO_SEQ(q->write_ptr)); + if (cmd->flags & CMD_SIZE_HUGE) + out_cmd->hdr.sequence |= SEQ_HUGE_FRAME; + len = sizeof(struct il_device_cmd); + if (idx == TFD_CMD_SLOTS) + len = IL_MAX_CMD_SIZE; + +#ifdef CONFIG_IWLEGACY_DEBUG + switch (out_cmd->hdr.cmd) { + case C_TX_LINK_QUALITY_CMD: + case C_SENSITIVITY: + D_HC_DUMP("Sending command %s (#%x), seq: 0x%04X, " + "%d bytes at %d[%d]:%d\n", + il_get_cmd_string(out_cmd->hdr.cmd), out_cmd->hdr.cmd, + le16_to_cpu(out_cmd->hdr.sequence), fix_size, + q->write_ptr, idx, il->cmd_queue); + break; + default: + D_HC("Sending command %s (#%x), seq: 0x%04X, " + "%d bytes at %d[%d]:%d\n", + il_get_cmd_string(out_cmd->hdr.cmd), out_cmd->hdr.cmd, + le16_to_cpu(out_cmd->hdr.sequence), fix_size, q->write_ptr, + idx, il->cmd_queue); + } +#endif + txq->need_update = 1; + + if (il->cfg->ops->lib->txq_update_byte_cnt_tbl) + /* Set up entry in queue's byte count circular buffer */ + il->cfg->ops->lib->txq_update_byte_cnt_tbl(il, txq, 0); + + phys_addr = + pci_map_single(il->pci_dev, &out_cmd->hdr, fix_size, + PCI_DMA_BIDIRECTIONAL); + dma_unmap_addr_set(out_meta, mapping, phys_addr); + dma_unmap_len_set(out_meta, len, fix_size); + + il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr, fix_size, + 1, U32_PAD(cmd->len)); + + /* Increment and update queue's write idx */ + q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd); + il_txq_update_write_ptr(il, txq); + + spin_unlock_irqrestore(&il->hcmd_lock, flags); + return idx; +} + +/** + * il_hcmd_queue_reclaim - Reclaim TX command queue entries already Tx'd + * + * When FW advances 'R' idx, all entries between old and new 'R' idx + * need to be reclaimed. As result, some free space forms. If there is + * enough free space (> low mark), wake the stack that feeds us. + */ +static void +il_hcmd_queue_reclaim(struct il_priv *il, int txq_id, int idx, int cmd_idx) +{ + struct il_tx_queue *txq = &il->txq[txq_id]; + struct il_queue *q = &txq->q; + int nfreed = 0; + + if (idx >= q->n_bd || il_queue_used(q, idx) == 0) { + IL_ERR("Read idx for DMA queue txq id (%d), idx %d, " + "is out of range [0-%d] %d %d.\n", txq_id, idx, q->n_bd, + q->write_ptr, q->read_ptr); + return; + } + + for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx; + q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) { + + if (nfreed++ > 0) { + IL_ERR("HCMD skipped: idx (%d) %d %d\n", idx, + q->write_ptr, q->read_ptr); + queue_work(il->workqueue, &il->restart); + } + + } +} + +/** + * il_tx_cmd_complete - Pull unused buffers off the queue and reclaim them + * @rxb: Rx buffer to reclaim + * + * If an Rx buffer has an async callback associated with it the callback + * will be executed. The attached skb (if present) will only be freed + * if the callback returns 1 + */ +void +il_tx_cmd_complete(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + u16 sequence = le16_to_cpu(pkt->hdr.sequence); + int txq_id = SEQ_TO_QUEUE(sequence); + int idx = SEQ_TO_IDX(sequence); + int cmd_idx; + bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME); + struct il_device_cmd *cmd; + struct il_cmd_meta *meta; + struct il_tx_queue *txq = &il->txq[il->cmd_queue]; + unsigned long flags; + + /* If a Tx command is being handled and it isn't in the actual + * command queue then there a command routing bug has been introduced + * in the queue management code. */ + if (WARN + (txq_id != il->cmd_queue, + "wrong command queue %d (should be %d), sequence 0x%X readp=%d writep=%d\n", + txq_id, il->cmd_queue, sequence, il->txq[il->cmd_queue].q.read_ptr, + il->txq[il->cmd_queue].q.write_ptr)) { + il_print_hex_error(il, pkt, 32); + return; + } + + cmd_idx = il_get_cmd_idx(&txq->q, idx, huge); + cmd = txq->cmd[cmd_idx]; + meta = &txq->meta[cmd_idx]; + + txq->time_stamp = jiffies; + + pci_unmap_single(il->pci_dev, dma_unmap_addr(meta, mapping), + dma_unmap_len(meta, len), PCI_DMA_BIDIRECTIONAL); + + /* Input error checking is done when commands are added to queue. */ + if (meta->flags & CMD_WANT_SKB) { + meta->source->reply_page = (unsigned long)rxb_addr(rxb); + rxb->page = NULL; + } else if (meta->callback) + meta->callback(il, cmd, pkt); + + spin_lock_irqsave(&il->hcmd_lock, flags); + + il_hcmd_queue_reclaim(il, txq_id, idx, cmd_idx); + + if (!(meta->flags & CMD_ASYNC)) { + clear_bit(S_HCMD_ACTIVE, &il->status); + D_INFO("Clearing HCMD_ACTIVE for command %s\n", + il_get_cmd_string(cmd->hdr.cmd)); + wake_up(&il->wait_command_queue); + } + + /* Mark as unmapped */ + meta->flags = 0; + + spin_unlock_irqrestore(&il->hcmd_lock, flags); +} +EXPORT_SYMBOL(il_tx_cmd_complete); + +MODULE_DESCRIPTION("iwl-legacy: common functions for 3945 and 4965"); +MODULE_VERSION(IWLWIFI_VERSION); +MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); +MODULE_LICENSE("GPL"); + +/* + * set bt_coex_active to true, uCode will do kill/defer + * every time the priority line is asserted (BT is sending signals on the + * priority line in the PCIx). + * set bt_coex_active to false, uCode will ignore the BT activity and + * perform the normal operation + * + * User might experience transmit issue on some platform due to WiFi/BT + * co-exist problem. The possible behaviors are: + * Able to scan and finding all the available AP + * Not able to associate with any AP + * On those platforms, WiFi communication can be restored by set + * "bt_coex_active" module parameter to "false" + * + * default: bt_coex_active = true (BT_COEX_ENABLE) + */ +static bool bt_coex_active = true; +module_param(bt_coex_active, bool, S_IRUGO); +MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist"); + +u32 il_debug_level; +EXPORT_SYMBOL(il_debug_level); + +const u8 il_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; +EXPORT_SYMBOL(il_bcast_addr); + +/* This function both allocates and initializes hw and il. */ +struct ieee80211_hw * +il_alloc_all(struct il_cfg *cfg) +{ + struct il_priv *il; + /* mac80211 allocates memory for this device instance, including + * space for this driver's ilate structure */ + struct ieee80211_hw *hw; + + hw = ieee80211_alloc_hw(sizeof(struct il_priv), + cfg->ops->ieee80211_ops); + if (hw == NULL) { + pr_err("%s: Can not allocate network device\n", cfg->name); + goto out; + } + + il = hw->priv; + il->hw = hw; + +out: + return hw; +} +EXPORT_SYMBOL(il_alloc_all); + +#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ +#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ +static void +il_init_ht_hw_capab(const struct il_priv *il, + struct ieee80211_sta_ht_cap *ht_info, + enum ieee80211_band band) +{ + u16 max_bit_rate = 0; + u8 rx_chains_num = il->hw_params.rx_chains_num; + u8 tx_chains_num = il->hw_params.tx_chains_num; + + ht_info->cap = 0; + memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); + + ht_info->ht_supported = true; + + ht_info->cap |= IEEE80211_HT_CAP_SGI_20; + max_bit_rate = MAX_BIT_RATE_20_MHZ; + if (il->hw_params.ht40_channel & BIT(band)) { + ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; + ht_info->cap |= IEEE80211_HT_CAP_SGI_40; + ht_info->mcs.rx_mask[4] = 0x01; + max_bit_rate = MAX_BIT_RATE_40_MHZ; + } + + if (il->cfg->mod_params->amsdu_size_8K) + ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; + + ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; + ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; + + ht_info->mcs.rx_mask[0] = 0xFF; + if (rx_chains_num >= 2) + ht_info->mcs.rx_mask[1] = 0xFF; + if (rx_chains_num >= 3) + ht_info->mcs.rx_mask[2] = 0xFF; + + /* Highest supported Rx data rate */ + max_bit_rate *= rx_chains_num; + WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); + ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); + + /* Tx MCS capabilities */ + ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; + if (tx_chains_num != rx_chains_num) { + ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; + ht_info->mcs.tx_params |= + ((tx_chains_num - + 1) << IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); + } +} + +/** + * il_init_geos - Initialize mac80211's geo/channel info based from eeprom + */ +int +il_init_geos(struct il_priv *il) +{ + struct il_channel_info *ch; + struct ieee80211_supported_band *sband; + struct ieee80211_channel *channels; + struct ieee80211_channel *geo_ch; + struct ieee80211_rate *rates; + int i = 0; + s8 max_tx_power = 0; + + if (il->bands[IEEE80211_BAND_2GHZ].n_bitrates || + il->bands[IEEE80211_BAND_5GHZ].n_bitrates) { + D_INFO("Geography modes already initialized.\n"); + set_bit(S_GEO_CONFIGURED, &il->status); + return 0; + } + + channels = + kzalloc(sizeof(struct ieee80211_channel) * il->channel_count, + GFP_KERNEL); + if (!channels) + return -ENOMEM; + + rates = + kzalloc((sizeof(struct ieee80211_rate) * RATE_COUNT_LEGACY), + GFP_KERNEL); + if (!rates) { + kfree(channels); + return -ENOMEM; + } + + /* 5.2GHz channels start after the 2.4GHz channels */ + sband = &il->bands[IEEE80211_BAND_5GHZ]; + sband->channels = &channels[ARRAY_SIZE(il_eeprom_band_1)]; + /* just OFDM */ + sband->bitrates = &rates[IL_FIRST_OFDM_RATE]; + sband->n_bitrates = RATE_COUNT_LEGACY - IL_FIRST_OFDM_RATE; + + if (il->cfg->sku & IL_SKU_N) + il_init_ht_hw_capab(il, &sband->ht_cap, IEEE80211_BAND_5GHZ); + + sband = &il->bands[IEEE80211_BAND_2GHZ]; + sband->channels = channels; + /* OFDM & CCK */ + sband->bitrates = rates; + sband->n_bitrates = RATE_COUNT_LEGACY; + + if (il->cfg->sku & IL_SKU_N) + il_init_ht_hw_capab(il, &sband->ht_cap, IEEE80211_BAND_2GHZ); + + il->ieee_channels = channels; + il->ieee_rates = rates; + + for (i = 0; i < il->channel_count; i++) { + ch = &il->channel_info[i]; + + if (!il_is_channel_valid(ch)) + continue; + + sband = &il->bands[ch->band]; + + geo_ch = &sband->channels[sband->n_channels++]; + + geo_ch->center_freq = + ieee80211_channel_to_frequency(ch->channel, ch->band); + geo_ch->max_power = ch->max_power_avg; + geo_ch->max_antenna_gain = 0xff; + geo_ch->hw_value = ch->channel; + + if (il_is_channel_valid(ch)) { + if (!(ch->flags & EEPROM_CHANNEL_IBSS)) + geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; + + if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) + geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; + + if (ch->flags & EEPROM_CHANNEL_RADAR) + geo_ch->flags |= IEEE80211_CHAN_RADAR; + + geo_ch->flags |= ch->ht40_extension_channel; + + if (ch->max_power_avg > max_tx_power) + max_tx_power = ch->max_power_avg; + } else { + geo_ch->flags |= IEEE80211_CHAN_DISABLED; + } + + D_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", ch->channel, + geo_ch->center_freq, + il_is_channel_a_band(ch) ? "5.2" : "2.4", + geo_ch-> + flags & IEEE80211_CHAN_DISABLED ? "restricted" : "valid", + geo_ch->flags); + } + + il->tx_power_device_lmt = max_tx_power; + il->tx_power_user_lmt = max_tx_power; + il->tx_power_next = max_tx_power; + + if (il->bands[IEEE80211_BAND_5GHZ].n_channels == 0 && + (il->cfg->sku & IL_SKU_A)) { + IL_INFO("Incorrectly detected BG card as ABG. " + "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n", + il->pci_dev->device, il->pci_dev->subsystem_device); + il->cfg->sku &= ~IL_SKU_A; + } + + IL_INFO("Tunable channels: %d 802.11bg, %d 802.11a channels\n", + il->bands[IEEE80211_BAND_2GHZ].n_channels, + il->bands[IEEE80211_BAND_5GHZ].n_channels); + + set_bit(S_GEO_CONFIGURED, &il->status); + + return 0; +} +EXPORT_SYMBOL(il_init_geos); + +/* + * il_free_geos - undo allocations in il_init_geos + */ +void +il_free_geos(struct il_priv *il) +{ + kfree(il->ieee_channels); + kfree(il->ieee_rates); + clear_bit(S_GEO_CONFIGURED, &il->status); +} +EXPORT_SYMBOL(il_free_geos); + +static bool +il_is_channel_extension(struct il_priv *il, enum ieee80211_band band, + u16 channel, u8 extension_chan_offset) +{ + const struct il_channel_info *ch_info; + + ch_info = il_get_channel_info(il, band, channel); + if (!il_is_channel_valid(ch_info)) + return false; + + if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) + return !(ch_info-> + ht40_extension_channel & IEEE80211_CHAN_NO_HT40PLUS); + else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) + return !(ch_info-> + ht40_extension_channel & IEEE80211_CHAN_NO_HT40MINUS); + + return false; +} + +bool +il_is_ht40_tx_allowed(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_sta_ht_cap *ht_cap) +{ + if (!ctx->ht.enabled || !ctx->ht.is_40mhz) + return false; + + /* + * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 + * the bit will not set if it is pure 40MHz case + */ + if (ht_cap && !ht_cap->ht_supported) + return false; + +#ifdef CONFIG_IWLEGACY_DEBUGFS + if (il->disable_ht40) + return false; +#endif + + return il_is_channel_extension(il, il->band, + le16_to_cpu(ctx->staging.channel), + ctx->ht.extension_chan_offset); +} +EXPORT_SYMBOL(il_is_ht40_tx_allowed); + +static u16 +il_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) +{ + u16 new_val; + u16 beacon_factor; + + /* + * If mac80211 hasn't given us a beacon interval, program + * the default into the device. + */ + if (!beacon_val) + return DEFAULT_BEACON_INTERVAL; + + /* + * If the beacon interval we obtained from the peer + * is too large, we'll have to wake up more often + * (and in IBSS case, we'll beacon too much) + * + * For example, if max_beacon_val is 4096, and the + * requested beacon interval is 7000, we'll have to + * use 3500 to be able to wake up on the beacons. + * + * This could badly influence beacon detection stats. + */ + + beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; + new_val = beacon_val / beacon_factor; + + if (!new_val) + new_val = max_beacon_val; + + return new_val; +} + +int +il_send_rxon_timing(struct il_priv *il, struct il_rxon_context *ctx) +{ + u64 tsf; + s32 interval_tm, rem; + struct ieee80211_conf *conf = NULL; + u16 beacon_int; + struct ieee80211_vif *vif = ctx->vif; + + conf = &il->hw->conf; + + lockdep_assert_held(&il->mutex); + + memset(&ctx->timing, 0, sizeof(struct il_rxon_time_cmd)); + + ctx->timing.timestamp = cpu_to_le64(il->timestamp); + ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); + + beacon_int = vif ? vif->bss_conf.beacon_int : 0; + + /* + * TODO: For IBSS we need to get atim_win from mac80211, + * for now just always use 0 + */ + ctx->timing.atim_win = 0; + + beacon_int = + il_adjust_beacon_interval(beacon_int, + il->hw_params.max_beacon_itrvl * + TIME_UNIT); + ctx->timing.beacon_interval = cpu_to_le16(beacon_int); + + tsf = il->timestamp; /* tsf is modifed by do_div: copy it */ + interval_tm = beacon_int * TIME_UNIT; + rem = do_div(tsf, interval_tm); + ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); + + ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ? : 1) : 1; + + D_ASSOC("beacon interval %d beacon timer %d beacon tim %d\n", + le16_to_cpu(ctx->timing.beacon_interval), + le32_to_cpu(ctx->timing.beacon_init_val), + le16_to_cpu(ctx->timing.atim_win)); + + return il_send_cmd_pdu(il, ctx->rxon_timing_cmd, sizeof(ctx->timing), + &ctx->timing); +} +EXPORT_SYMBOL(il_send_rxon_timing); + +void +il_set_rxon_hwcrypto(struct il_priv *il, struct il_rxon_context *ctx, + int hw_decrypt) +{ + struct il_rxon_cmd *rxon = &ctx->staging; + + if (hw_decrypt) + rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; + else + rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; + +} +EXPORT_SYMBOL(il_set_rxon_hwcrypto); + +/* validate RXON structure is valid */ +int +il_check_rxon_cmd(struct il_priv *il, struct il_rxon_context *ctx) +{ + struct il_rxon_cmd *rxon = &ctx->staging; + bool error = false; + + if (rxon->flags & RXON_FLG_BAND_24G_MSK) { + if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) { + IL_WARN("check 2.4G: wrong narrow\n"); + error = true; + } + if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) { + IL_WARN("check 2.4G: wrong radar\n"); + error = true; + } + } else { + if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) { + IL_WARN("check 5.2G: not short slot!\n"); + error = true; + } + if (rxon->flags & RXON_FLG_CCK_MSK) { + IL_WARN("check 5.2G: CCK!\n"); + error = true; + } + } + if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) { + IL_WARN("mac/bssid mcast!\n"); + error = true; + } + + /* make sure basic rates 6Mbps and 1Mbps are supported */ + if ((rxon->ofdm_basic_rates & RATE_6M_MASK) == 0 && + (rxon->cck_basic_rates & RATE_1M_MASK) == 0) { + IL_WARN("neither 1 nor 6 are basic\n"); + error = true; + } + + if (le16_to_cpu(rxon->assoc_id) > 2007) { + IL_WARN("aid > 2007\n"); + error = true; + } + + if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) == + (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) { + IL_WARN("CCK and short slot\n"); + error = true; + } + + if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) == + (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { + IL_WARN("CCK and auto detect"); + error = true; + } + + if ((rxon-> + flags & (RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK)) == + RXON_FLG_TGG_PROTECT_MSK) { + IL_WARN("TGg but no auto-detect\n"); + error = true; + } + + if (error) + IL_WARN("Tuning to channel %d\n", le16_to_cpu(rxon->channel)); + + if (error) { + IL_ERR("Invalid RXON\n"); + return -EINVAL; + } + return 0; +} +EXPORT_SYMBOL(il_check_rxon_cmd); + +/** + * il_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed + * @il: staging_rxon is compared to active_rxon + * + * If the RXON structure is changing enough to require a new tune, + * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that + * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. + */ +int +il_full_rxon_required(struct il_priv *il, struct il_rxon_context *ctx) +{ + const struct il_rxon_cmd *staging = &ctx->staging; + const struct il_rxon_cmd *active = &ctx->active; + +#define CHK(cond) \ + if ((cond)) { \ + D_INFO("need full RXON - " #cond "\n"); \ + return 1; \ + } + +#define CHK_NEQ(c1, c2) \ + if ((c1) != (c2)) { \ + D_INFO("need full RXON - " \ + #c1 " != " #c2 " - %d != %d\n", \ + (c1), (c2)); \ + return 1; \ + } + + /* These items are only settable from the full RXON command */ + CHK(!il_is_associated_ctx(ctx)); + CHK(compare_ether_addr(staging->bssid_addr, active->bssid_addr)); + CHK(compare_ether_addr(staging->node_addr, active->node_addr)); + CHK(compare_ether_addr + (staging->wlap_bssid_addr, active->wlap_bssid_addr)); + CHK_NEQ(staging->dev_type, active->dev_type); + CHK_NEQ(staging->channel, active->channel); + CHK_NEQ(staging->air_propagation, active->air_propagation); + CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates, + active->ofdm_ht_single_stream_basic_rates); + CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates, + active->ofdm_ht_dual_stream_basic_rates); + CHK_NEQ(staging->assoc_id, active->assoc_id); + + /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can + * be updated with the RXON_ASSOC command -- however only some + * flag transitions are allowed using RXON_ASSOC */ + + /* Check if we are not switching bands */ + CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK, + active->flags & RXON_FLG_BAND_24G_MSK); + + /* Check if we are switching association toggle */ + CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK, + active->filter_flags & RXON_FILTER_ASSOC_MSK); + +#undef CHK +#undef CHK_NEQ + + return 0; +} +EXPORT_SYMBOL(il_full_rxon_required); + +u8 +il_get_lowest_plcp(struct il_priv *il, struct il_rxon_context *ctx) +{ + /* + * Assign the lowest rate -- should really get this from + * the beacon skb from mac80211. + */ + if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) + return RATE_1M_PLCP; + else + return RATE_6M_PLCP; +} +EXPORT_SYMBOL(il_get_lowest_plcp); + +static void +_il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf, + struct il_rxon_context *ctx) +{ + struct il_rxon_cmd *rxon = &ctx->staging; + + if (!ctx->ht.enabled) { + rxon->flags &= + ~(RXON_FLG_CHANNEL_MODE_MSK | + RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | RXON_FLG_HT40_PROT_MSK + | RXON_FLG_HT_PROT_MSK); + return; + } + + rxon->flags |= + cpu_to_le32(ctx->ht.protection << RXON_FLG_HT_OPERATING_MODE_POS); + + /* Set up channel bandwidth: + * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ + /* clear the HT channel mode before set the mode */ + rxon->flags &= + ~(RXON_FLG_CHANNEL_MODE_MSK | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); + if (il_is_ht40_tx_allowed(il, ctx, NULL)) { + /* pure ht40 */ + if (ctx->ht.protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { + rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; + /* Note: control channel is opposite of extension channel */ + switch (ctx->ht.extension_chan_offset) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + rxon->flags &= + ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; + break; + } + } else { + /* Note: control channel is opposite of extension channel */ + switch (ctx->ht.extension_chan_offset) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + rxon->flags &= + ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); + rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; + rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; + break; + case IEEE80211_HT_PARAM_CHA_SEC_NONE: + default: + /* channel location only valid if in Mixed mode */ + IL_ERR("invalid extension channel offset\n"); + break; + } + } + } else { + rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; + } + + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, ctx); + + D_ASSOC("rxon flags 0x%X operation mode :0x%X " + "extension channel offset 0x%x\n", le32_to_cpu(rxon->flags), + ctx->ht.protection, ctx->ht.extension_chan_offset); +} + +void +il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf) +{ + _il_set_rxon_ht(il, ht_conf, &il->ctx); +} +EXPORT_SYMBOL(il_set_rxon_ht); + +/* Return valid, unused, channel for a passive scan to reset the RF */ +u8 +il_get_single_channel_number(struct il_priv *il, enum ieee80211_band band) +{ + const struct il_channel_info *ch_info; + int i; + u8 channel = 0; + u8 min, max; + + if (band == IEEE80211_BAND_5GHZ) { + min = 14; + max = il->channel_count; + } else { + min = 0; + max = 14; + } + + for (i = min; i < max; i++) { + channel = il->channel_info[i].channel; + if (channel == le16_to_cpu(il->ctx.staging.channel)) + continue; + + ch_info = il_get_channel_info(il, band, channel); + if (il_is_channel_valid(ch_info)) + break; + } + + return channel; +} +EXPORT_SYMBOL(il_get_single_channel_number); + +/** + * il_set_rxon_channel - Set the band and channel values in staging RXON + * @ch: requested channel as a pointer to struct ieee80211_channel + + * NOTE: Does not commit to the hardware; it sets appropriate bit fields + * in the staging RXON flag structure based on the ch->band + */ +int +il_set_rxon_channel(struct il_priv *il, struct ieee80211_channel *ch, + struct il_rxon_context *ctx) +{ + enum ieee80211_band band = ch->band; + u16 channel = ch->hw_value; + + if (le16_to_cpu(ctx->staging.channel) == channel && il->band == band) + return 0; + + ctx->staging.channel = cpu_to_le16(channel); + if (band == IEEE80211_BAND_5GHZ) + ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK; + else + ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; + + il->band = band; + + D_INFO("Staging channel set to %d [%d]\n", channel, band); + + return 0; +} +EXPORT_SYMBOL(il_set_rxon_channel); + +void +il_set_flags_for_band(struct il_priv *il, struct il_rxon_context *ctx, + enum ieee80211_band band, struct ieee80211_vif *vif) +{ + if (band == IEEE80211_BAND_5GHZ) { + ctx->staging.flags &= + ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | + RXON_FLG_CCK_MSK); + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; + } else { + /* Copied from il_post_associate() */ + if (vif && vif->bss_conf.use_short_slot) + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; + + ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; + ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK; + ctx->staging.flags &= ~RXON_FLG_CCK_MSK; + } +} +EXPORT_SYMBOL(il_set_flags_for_band); + +/* + * initialize rxon structure with default values from eeprom + */ +void +il_connection_init_rx_config(struct il_priv *il, struct il_rxon_context *ctx) +{ + const struct il_channel_info *ch_info; + + memset(&ctx->staging, 0, sizeof(ctx->staging)); + + if (!ctx->vif) { + ctx->staging.dev_type = ctx->unused_devtype; + } else + switch (ctx->vif->type) { + + case NL80211_IFTYPE_STATION: + ctx->staging.dev_type = ctx->station_devtype; + ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; + break; + + case NL80211_IFTYPE_ADHOC: + ctx->staging.dev_type = ctx->ibss_devtype; + ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK; + ctx->staging.filter_flags = + RXON_FILTER_BCON_AWARE_MSK | + RXON_FILTER_ACCEPT_GRP_MSK; + break; + + default: + IL_ERR("Unsupported interface type %d\n", + ctx->vif->type); + break; + } + +#if 0 + /* TODO: Figure out when short_preamble would be set and cache from + * that */ + if (!hw_to_local(il->hw)->short_preamble) + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + else + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; +#endif + + ch_info = + il_get_channel_info(il, il->band, le16_to_cpu(ctx->active.channel)); + + if (!ch_info) + ch_info = &il->channel_info[0]; + + ctx->staging.channel = cpu_to_le16(ch_info->channel); + il->band = ch_info->band; + + il_set_flags_for_band(il, ctx, il->band, ctx->vif); + + ctx->staging.ofdm_basic_rates = + (IL_OFDM_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF; + ctx->staging.cck_basic_rates = + (IL_CCK_RATES_MASK >> IL_FIRST_CCK_RATE) & 0xF; + + /* clear both MIX and PURE40 mode flag */ + ctx->staging.flags &= + ~(RXON_FLG_CHANNEL_MODE_MIXED | RXON_FLG_CHANNEL_MODE_PURE_40); + if (ctx->vif) + memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN); + + ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff; + ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff; +} +EXPORT_SYMBOL(il_connection_init_rx_config); + +void +il_set_rate(struct il_priv *il) +{ + const struct ieee80211_supported_band *hw = NULL; + struct ieee80211_rate *rate; + int i; + + hw = il_get_hw_mode(il, il->band); + if (!hw) { + IL_ERR("Failed to set rate: unable to get hw mode\n"); + return; + } + + il->active_rate = 0; + + for (i = 0; i < hw->n_bitrates; i++) { + rate = &(hw->bitrates[i]); + if (rate->hw_value < RATE_COUNT_LEGACY) + il->active_rate |= (1 << rate->hw_value); + } + + D_RATE("Set active_rate = %0x\n", il->active_rate); + + il->ctx.staging.cck_basic_rates = + (IL_CCK_BASIC_RATES_MASK >> IL_FIRST_CCK_RATE) & 0xF; + + il->ctx.staging.ofdm_basic_rates = + (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF; +} +EXPORT_SYMBOL(il_set_rate); + +void +il_chswitch_done(struct il_priv *il, bool is_success) +{ + struct il_rxon_context *ctx = &il->ctx; + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + if (test_and_clear_bit(S_CHANNEL_SWITCH_PENDING, &il->status)) + ieee80211_chswitch_done(ctx->vif, is_success); +} +EXPORT_SYMBOL(il_chswitch_done); + +void +il_hdl_csa(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_csa_notification *csa = &(pkt->u.csa_notif); + + struct il_rxon_context *ctx = &il->ctx; + struct il_rxon_cmd *rxon = (void *)&ctx->active; + + if (!test_bit(S_CHANNEL_SWITCH_PENDING, &il->status)) + return; + + if (!le32_to_cpu(csa->status) && csa->channel == il->switch_channel) { + rxon->channel = csa->channel; + ctx->staging.channel = csa->channel; + D_11H("CSA notif: channel %d\n", le16_to_cpu(csa->channel)); + il_chswitch_done(il, true); + } else { + IL_ERR("CSA notif (fail) : channel %d\n", + le16_to_cpu(csa->channel)); + il_chswitch_done(il, false); + } +} +EXPORT_SYMBOL(il_hdl_csa); + +#ifdef CONFIG_IWLEGACY_DEBUG +void +il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx) +{ + struct il_rxon_cmd *rxon = &ctx->staging; + + D_RADIO("RX CONFIG:\n"); + il_print_hex_dump(il, IL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); + D_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); + D_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); + D_RADIO("u32 filter_flags: 0x%08x\n", le32_to_cpu(rxon->filter_flags)); + D_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type); + D_RADIO("u8 ofdm_basic_rates: 0x%02x\n", rxon->ofdm_basic_rates); + D_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); + D_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr); + D_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr); + D_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); +} +EXPORT_SYMBOL(il_print_rx_config_cmd); +#endif +/** + * il_irq_handle_error - called for HW or SW error interrupt from card + */ +void +il_irq_handle_error(struct il_priv *il) +{ + /* Set the FW error flag -- cleared on il_down */ + set_bit(S_FW_ERROR, &il->status); + + /* Cancel currently queued command. */ + clear_bit(S_HCMD_ACTIVE, &il->status); + + IL_ERR("Loaded firmware version: %s\n", il->hw->wiphy->fw_version); + + il->cfg->ops->lib->dump_nic_error_log(il); + if (il->cfg->ops->lib->dump_fh) + il->cfg->ops->lib->dump_fh(il, NULL, false); +#ifdef CONFIG_IWLEGACY_DEBUG + if (il_get_debug_level(il) & IL_DL_FW_ERRORS) + il_print_rx_config_cmd(il, &il->ctx); +#endif + + wake_up(&il->wait_command_queue); + + /* Keep the restart process from trying to send host + * commands by clearing the INIT status bit */ + clear_bit(S_READY, &il->status); + + if (!test_bit(S_EXIT_PENDING, &il->status)) { + IL_DBG(IL_DL_FW_ERRORS, + "Restarting adapter due to uCode error.\n"); + + if (il->cfg->mod_params->restart_fw) + queue_work(il->workqueue, &il->restart); + } +} +EXPORT_SYMBOL(il_irq_handle_error); + +static int +il_apm_stop_master(struct il_priv *il) +{ + int ret = 0; + + /* stop device's busmaster DMA activity */ + il_set_bit(il, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); + + ret = + _il_poll_bit(il, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED, + CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); + if (ret) + IL_WARN("Master Disable Timed Out, 100 usec\n"); + + D_INFO("stop master\n"); + + return ret; +} + +void +il_apm_stop(struct il_priv *il) +{ + D_INFO("Stop card, put in low power state\n"); + + /* Stop device's DMA activity */ + il_apm_stop_master(il); + + /* Reset the entire device */ + il_set_bit(il, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + udelay(10); + + /* + * Clear "initialization complete" bit to move adapter from + * D0A* (powered-up Active) --> D0U* (Uninitialized) state. + */ + il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); +} +EXPORT_SYMBOL(il_apm_stop); + +/* + * Start up NIC's basic functionality after it has been reset + * (e.g. after platform boot, or shutdown via il_apm_stop()) + * NOTE: This does not load uCode nor start the embedded processor + */ +int +il_apm_init(struct il_priv *il) +{ + int ret = 0; + u16 lctl; + + D_INFO("Init card's basic functions\n"); + + /* + * Use "set_bit" below rather than "write", to preserve any hardware + * bits already set by default after reset. + */ + + /* Disable L0S exit timer (platform NMI Work/Around) */ + il_set_bit(il, CSR_GIO_CHICKEN_BITS, + CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); + + /* + * Disable L0s without affecting L1; + * don't wait for ICH L0s (ICH bug W/A) + */ + il_set_bit(il, CSR_GIO_CHICKEN_BITS, + CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); + + /* Set FH wait threshold to maximum (HW error during stress W/A) */ + il_set_bit(il, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL); + + /* + * Enable HAP INTA (interrupt from management bus) to + * wake device's PCI Express link L1a -> L0s + * NOTE: This is no-op for 3945 (non-existent bit) + */ + il_set_bit(il, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A); + + /* + * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition. + * Check if BIOS (or OS) enabled L1-ASPM on this device. + * If so (likely), disable L0S, so device moves directly L0->L1; + * costs negligible amount of power savings. + * If not (unlikely), enable L0S, so there is at least some + * power savings, even without L1. + */ + if (il->cfg->base_params->set_l0s) { + lctl = il_pcie_link_ctl(il); + if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == + PCI_CFG_LINK_CTRL_VAL_L1_EN) { + /* L1-ASPM enabled; disable(!) L0S */ + il_set_bit(il, CSR_GIO_REG, + CSR_GIO_REG_VAL_L0S_ENABLED); + D_POWER("L1 Enabled; Disabling L0S\n"); + } else { + /* L1-ASPM disabled; enable(!) L0S */ + il_clear_bit(il, CSR_GIO_REG, + CSR_GIO_REG_VAL_L0S_ENABLED); + D_POWER("L1 Disabled; Enabling L0S\n"); + } + } + + /* Configure analog phase-lock-loop before activating to D0A */ + if (il->cfg->base_params->pll_cfg_val) + il_set_bit(il, CSR_ANA_PLL_CFG, + il->cfg->base_params->pll_cfg_val); + + /* + * Set "initialization complete" bit to move adapter from + * D0U* --> D0A* (powered-up active) state. + */ + il_set_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + + /* + * Wait for clock stabilization; once stabilized, access to + * device-internal resources is supported, e.g. il_wr_prph() + * and accesses to uCode SRAM. + */ + ret = + _il_poll_bit(il, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); + if (ret < 0) { + D_INFO("Failed to init the card\n"); + goto out; + } + + /* + * Enable DMA and BSM (if used) clocks, wait for them to stabilize. + * BSM (Boostrap State Machine) is only in 3945 and 4965. + * + * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits + * do not disable clocks. This preserves any hardware bits already + * set by default in "CLK_CTRL_REG" after reset. + */ + if (il->cfg->base_params->use_bsm) + il_wr_prph(il, APMG_CLK_EN_REG, + APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT); + else + il_wr_prph(il, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); + udelay(20); + + /* Disable L1-Active */ + il_set_bits_prph(il, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + +out: + return ret; +} +EXPORT_SYMBOL(il_apm_init); + +int +il_set_tx_power(struct il_priv *il, s8 tx_power, bool force) +{ + int ret; + s8 prev_tx_power; + bool defer; + struct il_rxon_context *ctx = &il->ctx; + + lockdep_assert_held(&il->mutex); + + if (il->tx_power_user_lmt == tx_power && !force) + return 0; + + if (!il->cfg->ops->lib->send_tx_power) + return -EOPNOTSUPP; + + /* 0 dBm mean 1 milliwatt */ + if (tx_power < 0) { + IL_WARN("Requested user TXPOWER %d below 1 mW.\n", tx_power); + return -EINVAL; + } + + if (tx_power > il->tx_power_device_lmt) { + IL_WARN("Requested user TXPOWER %d above upper limit %d.\n", + tx_power, il->tx_power_device_lmt); + return -EINVAL; + } + + if (!il_is_ready_rf(il)) + return -EIO; + + /* scan complete and commit_rxon use tx_power_next value, + * it always need to be updated for newest request */ + il->tx_power_next = tx_power; + + /* do not set tx power when scanning or channel changing */ + defer = test_bit(S_SCANNING, &il->status) || + memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)); + if (defer && !force) { + D_INFO("Deferring tx power set\n"); + return 0; + } + + prev_tx_power = il->tx_power_user_lmt; + il->tx_power_user_lmt = tx_power; + + ret = il->cfg->ops->lib->send_tx_power(il); + + /* if fail to set tx_power, restore the orig. tx power */ + if (ret) { + il->tx_power_user_lmt = prev_tx_power; + il->tx_power_next = prev_tx_power; + } + return ret; +} +EXPORT_SYMBOL(il_set_tx_power); + +void +il_send_bt_config(struct il_priv *il) +{ + struct il_bt_cmd bt_cmd = { + .lead_time = BT_LEAD_TIME_DEF, + .max_kill = BT_MAX_KILL_DEF, + .kill_ack_mask = 0, + .kill_cts_mask = 0, + }; + + if (!bt_coex_active) + bt_cmd.flags = BT_COEX_DISABLE; + else + bt_cmd.flags = BT_COEX_ENABLE; + + D_INFO("BT coex %s\n", + (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); + + if (il_send_cmd_pdu(il, C_BT_CONFIG, sizeof(struct il_bt_cmd), &bt_cmd)) + IL_ERR("failed to send BT Coex Config\n"); +} +EXPORT_SYMBOL(il_send_bt_config); + +int +il_send_stats_request(struct il_priv *il, u8 flags, bool clear) +{ + struct il_stats_cmd stats_cmd = { + .configuration_flags = clear ? IL_STATS_CONF_CLEAR_STATS : 0, + }; + + if (flags & CMD_ASYNC) + return il_send_cmd_pdu_async(il, C_STATS, sizeof(struct il_stats_cmd), + &stats_cmd, NULL); + else + return il_send_cmd_pdu(il, C_STATS, sizeof(struct il_stats_cmd), + &stats_cmd); +} +EXPORT_SYMBOL(il_send_stats_request); + +void +il_hdl_pm_sleep(struct il_priv *il, struct il_rx_buf *rxb) +{ +#ifdef CONFIG_IWLEGACY_DEBUG + struct il_rx_pkt *pkt = rxb_addr(rxb); + struct il_sleep_notification *sleep = &(pkt->u.sleep_notif); + D_RX("sleep mode: %d, src: %d\n", + sleep->pm_sleep_mode, sleep->pm_wakeup_src); +#endif +} +EXPORT_SYMBOL(il_hdl_pm_sleep); + +void +il_hdl_pm_debug_stats(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + u32 len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK; + D_RADIO("Dumping %d bytes of unhandled notification for %s:\n", len, + il_get_cmd_string(pkt->hdr.cmd)); + il_print_hex_dump(il, IL_DL_RADIO, pkt->u.raw, len); +} +EXPORT_SYMBOL(il_hdl_pm_debug_stats); + +void +il_hdl_error(struct il_priv *il, struct il_rx_buf *rxb) +{ + struct il_rx_pkt *pkt = rxb_addr(rxb); + + IL_ERR("Error Reply type 0x%08X cmd %s (0x%02X) " + "seq 0x%04X ser 0x%08X\n", + le32_to_cpu(pkt->u.err_resp.error_type), + il_get_cmd_string(pkt->u.err_resp.cmd_id), + pkt->u.err_resp.cmd_id, + le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), + le32_to_cpu(pkt->u.err_resp.error_info)); +} +EXPORT_SYMBOL(il_hdl_error); + +void +il_clear_isr_stats(struct il_priv *il) +{ + memset(&il->isr_stats, 0, sizeof(il->isr_stats)); +} + +int +il_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, + const struct ieee80211_tx_queue_params *params) +{ + struct il_priv *il = hw->priv; + unsigned long flags; + int q; + + D_MAC80211("enter\n"); + + if (!il_is_ready_rf(il)) { + D_MAC80211("leave - RF not ready\n"); + return -EIO; + } + + if (queue >= AC_NUM) { + D_MAC80211("leave - queue >= AC_NUM %d\n", queue); + return 0; + } + + q = AC_NUM - 1 - queue; + + spin_lock_irqsave(&il->lock, flags); + + il->ctx.qos_data.def_qos_parm.ac[q].cw_min = + cpu_to_le16(params->cw_min); + il->ctx.qos_data.def_qos_parm.ac[q].cw_max = + cpu_to_le16(params->cw_max); + il->ctx.qos_data.def_qos_parm.ac[q].aifsn = params->aifs; + il->ctx.qos_data.def_qos_parm.ac[q].edca_txop = + cpu_to_le16((params->txop * 32)); + + il->ctx.qos_data.def_qos_parm.ac[q].reserved1 = 0; + + spin_unlock_irqrestore(&il->lock, flags); + + D_MAC80211("leave\n"); + return 0; +} +EXPORT_SYMBOL(il_mac_conf_tx); + +int +il_mac_tx_last_beacon(struct ieee80211_hw *hw) +{ + struct il_priv *il = hw->priv; + + return il->ibss_manager == IL_IBSS_MANAGER; +} +EXPORT_SYMBOL_GPL(il_mac_tx_last_beacon); + +static int +il_set_mode(struct il_priv *il, struct il_rxon_context *ctx) +{ + il_connection_init_rx_config(il, ctx); + + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, ctx); + + return il_commit_rxon(il, ctx); +} + +static int +il_setup_interface(struct il_priv *il, struct il_rxon_context *ctx) +{ + struct ieee80211_vif *vif = ctx->vif; + int err; + + lockdep_assert_held(&il->mutex); + + /* + * This variable will be correct only when there's just + * a single context, but all code using it is for hardware + * that supports only one context. + */ + il->iw_mode = vif->type; + + ctx->is_active = true; + + err = il_set_mode(il, ctx); + if (err) { + if (!ctx->always_active) + ctx->is_active = false; + return err; + } + + return 0; +} + +int +il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct il_priv *il = hw->priv; + struct il_vif_priv *vif_priv = (void *)vif->drv_priv; + int err; + u32 modes; + + D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr); + + mutex_lock(&il->mutex); + + if (!il_is_ready_rf(il)) { + IL_WARN("Try to add interface when device not ready\n"); + err = -EINVAL; + goto out; + } + + /* check if busy context is exclusive */ + if (il->ctx.vif && + (il->ctx.exclusive_interface_modes & BIT(il->ctx.vif->type))) { + err = -EINVAL; + goto out; + } + + modes = il->ctx.interface_modes | il->ctx.exclusive_interface_modes; + if (!(modes & BIT(vif->type))) { + err = -EOPNOTSUPP; + goto out; + } + + vif_priv->ctx = &il->ctx; + il->ctx.vif = vif; + + err = il_setup_interface(il, &il->ctx); + if (err) { + il->ctx.vif = NULL; + il->iw_mode = NL80211_IFTYPE_STATION; + } + +out: + mutex_unlock(&il->mutex); + + D_MAC80211("leave\n"); + return err; +} +EXPORT_SYMBOL(il_mac_add_interface); + +static void +il_teardown_interface(struct il_priv *il, struct ieee80211_vif *vif, + bool mode_change) +{ + struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif); + + lockdep_assert_held(&il->mutex); + + if (il->scan_vif == vif) { + il_scan_cancel_timeout(il, 200); + il_force_scan_end(il); + } + + if (!mode_change) { + il_set_mode(il, ctx); + if (!ctx->always_active) + ctx->is_active = false; + } +} + +void +il_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct il_priv *il = hw->priv; + struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif); + + D_MAC80211("enter\n"); + + mutex_lock(&il->mutex); + + WARN_ON(ctx->vif != vif); + ctx->vif = NULL; + + il_teardown_interface(il, vif, false); + + memset(il->bssid, 0, ETH_ALEN); + mutex_unlock(&il->mutex); + + D_MAC80211("leave\n"); + +} +EXPORT_SYMBOL(il_mac_remove_interface); + +int +il_alloc_txq_mem(struct il_priv *il) +{ + if (!il->txq) + il->txq = + kzalloc(sizeof(struct il_tx_queue) * + il->cfg->base_params->num_of_queues, GFP_KERNEL); + if (!il->txq) { + IL_ERR("Not enough memory for txq\n"); + return -ENOMEM; + } + return 0; +} +EXPORT_SYMBOL(il_alloc_txq_mem); + +void +il_txq_mem(struct il_priv *il) +{ + kfree(il->txq); + il->txq = NULL; +} +EXPORT_SYMBOL(il_txq_mem); + +#ifdef CONFIG_IWLEGACY_DEBUGFS + +#define IL_TRAFFIC_DUMP_SIZE (IL_TRAFFIC_ENTRY_SIZE * IL_TRAFFIC_ENTRIES) + +void +il_reset_traffic_log(struct il_priv *il) +{ + il->tx_traffic_idx = 0; + il->rx_traffic_idx = 0; + if (il->tx_traffic) + memset(il->tx_traffic, 0, IL_TRAFFIC_DUMP_SIZE); + if (il->rx_traffic) + memset(il->rx_traffic, 0, IL_TRAFFIC_DUMP_SIZE); +} + +int +il_alloc_traffic_mem(struct il_priv *il) +{ + u32 traffic_size = IL_TRAFFIC_DUMP_SIZE; + + if (il_debug_level & IL_DL_TX) { + if (!il->tx_traffic) { + il->tx_traffic = kzalloc(traffic_size, GFP_KERNEL); + if (!il->tx_traffic) + return -ENOMEM; + } + } + if (il_debug_level & IL_DL_RX) { + if (!il->rx_traffic) { + il->rx_traffic = kzalloc(traffic_size, GFP_KERNEL); + if (!il->rx_traffic) + return -ENOMEM; + } + } + il_reset_traffic_log(il); + return 0; +} +EXPORT_SYMBOL(il_alloc_traffic_mem); + +void +il_free_traffic_mem(struct il_priv *il) +{ + kfree(il->tx_traffic); + il->tx_traffic = NULL; + + kfree(il->rx_traffic); + il->rx_traffic = NULL; +} +EXPORT_SYMBOL(il_free_traffic_mem); + +void +il_dbg_log_tx_data_frame(struct il_priv *il, u16 length, + struct ieee80211_hdr *header) +{ + __le16 fc; + u16 len; + + if (likely(!(il_debug_level & IL_DL_TX))) + return; + + if (!il->tx_traffic) + return; + + fc = header->frame_control; + if (ieee80211_is_data(fc)) { + len = + (length > + IL_TRAFFIC_ENTRY_SIZE) ? IL_TRAFFIC_ENTRY_SIZE : length; + memcpy((il->tx_traffic + + (il->tx_traffic_idx * IL_TRAFFIC_ENTRY_SIZE)), header, + len); + il->tx_traffic_idx = + (il->tx_traffic_idx + 1) % IL_TRAFFIC_ENTRIES; + } +} +EXPORT_SYMBOL(il_dbg_log_tx_data_frame); + +void +il_dbg_log_rx_data_frame(struct il_priv *il, u16 length, + struct ieee80211_hdr *header) +{ + __le16 fc; + u16 len; + + if (likely(!(il_debug_level & IL_DL_RX))) + return; + + if (!il->rx_traffic) + return; + + fc = header->frame_control; + if (ieee80211_is_data(fc)) { + len = + (length > + IL_TRAFFIC_ENTRY_SIZE) ? IL_TRAFFIC_ENTRY_SIZE : length; + memcpy((il->rx_traffic + + (il->rx_traffic_idx * IL_TRAFFIC_ENTRY_SIZE)), header, + len); + il->rx_traffic_idx = + (il->rx_traffic_idx + 1) % IL_TRAFFIC_ENTRIES; + } +} +EXPORT_SYMBOL(il_dbg_log_rx_data_frame); + +const char * +il_get_mgmt_string(int cmd) +{ + switch (cmd) { + IL_CMD(MANAGEMENT_ASSOC_REQ); + IL_CMD(MANAGEMENT_ASSOC_RESP); + IL_CMD(MANAGEMENT_REASSOC_REQ); + IL_CMD(MANAGEMENT_REASSOC_RESP); + IL_CMD(MANAGEMENT_PROBE_REQ); + IL_CMD(MANAGEMENT_PROBE_RESP); + IL_CMD(MANAGEMENT_BEACON); + IL_CMD(MANAGEMENT_ATIM); + IL_CMD(MANAGEMENT_DISASSOC); + IL_CMD(MANAGEMENT_AUTH); + IL_CMD(MANAGEMENT_DEAUTH); + IL_CMD(MANAGEMENT_ACTION); + default: + return "UNKNOWN"; + + } +} + +const char * +il_get_ctrl_string(int cmd) +{ + switch (cmd) { + IL_CMD(CONTROL_BACK_REQ); + IL_CMD(CONTROL_BACK); + IL_CMD(CONTROL_PSPOLL); + IL_CMD(CONTROL_RTS); + IL_CMD(CONTROL_CTS); + IL_CMD(CONTROL_ACK); + IL_CMD(CONTROL_CFEND); + IL_CMD(CONTROL_CFENDACK); + default: + return "UNKNOWN"; + + } +} + +void +il_clear_traffic_stats(struct il_priv *il) +{ + memset(&il->tx_stats, 0, sizeof(struct traffic_stats)); + memset(&il->rx_stats, 0, sizeof(struct traffic_stats)); +} + +/* + * if CONFIG_IWLEGACY_DEBUGFS defined, + * il_update_stats function will + * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass + * Use debugFs to display the rx/rx_stats + * if CONFIG_IWLEGACY_DEBUGFS not being defined, then no MGMT and CTRL + * information will be recorded, but DATA pkt still will be recorded + * for the reason of il_led.c need to control the led blinking based on + * number of tx and rx data. + * + */ +void +il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len) +{ + struct traffic_stats *stats; + + if (is_tx) + stats = &il->tx_stats; + else + stats = &il->rx_stats; + + if (ieee80211_is_mgmt(fc)) { + switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { + case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): + stats->mgmt[MANAGEMENT_ASSOC_REQ]++; + break; + case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP): + stats->mgmt[MANAGEMENT_ASSOC_RESP]++; + break; + case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): + stats->mgmt[MANAGEMENT_REASSOC_REQ]++; + break; + case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP): + stats->mgmt[MANAGEMENT_REASSOC_RESP]++; + break; + case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ): + stats->mgmt[MANAGEMENT_PROBE_REQ]++; + break; + case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP): + stats->mgmt[MANAGEMENT_PROBE_RESP]++; + break; + case cpu_to_le16(IEEE80211_STYPE_BEACON): + stats->mgmt[MANAGEMENT_BEACON]++; + break; + case cpu_to_le16(IEEE80211_STYPE_ATIM): + stats->mgmt[MANAGEMENT_ATIM]++; + break; + case cpu_to_le16(IEEE80211_STYPE_DISASSOC): + stats->mgmt[MANAGEMENT_DISASSOC]++; + break; + case cpu_to_le16(IEEE80211_STYPE_AUTH): + stats->mgmt[MANAGEMENT_AUTH]++; + break; + case cpu_to_le16(IEEE80211_STYPE_DEAUTH): + stats->mgmt[MANAGEMENT_DEAUTH]++; + break; + case cpu_to_le16(IEEE80211_STYPE_ACTION): + stats->mgmt[MANAGEMENT_ACTION]++; + break; + } + } else if (ieee80211_is_ctl(fc)) { + switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { + case cpu_to_le16(IEEE80211_STYPE_BACK_REQ): + stats->ctrl[CONTROL_BACK_REQ]++; + break; + case cpu_to_le16(IEEE80211_STYPE_BACK): + stats->ctrl[CONTROL_BACK]++; + break; + case cpu_to_le16(IEEE80211_STYPE_PSPOLL): + stats->ctrl[CONTROL_PSPOLL]++; + break; + case cpu_to_le16(IEEE80211_STYPE_RTS): + stats->ctrl[CONTROL_RTS]++; + break; + case cpu_to_le16(IEEE80211_STYPE_CTS): + stats->ctrl[CONTROL_CTS]++; + break; + case cpu_to_le16(IEEE80211_STYPE_ACK): + stats->ctrl[CONTROL_ACK]++; + break; + case cpu_to_le16(IEEE80211_STYPE_CFEND): + stats->ctrl[CONTROL_CFEND]++; + break; + case cpu_to_le16(IEEE80211_STYPE_CFENDACK): + stats->ctrl[CONTROL_CFENDACK]++; + break; + } + } else { + /* data */ + stats->data_cnt++; + stats->data_bytes += len; + } +} +EXPORT_SYMBOL(il_update_stats); +#endif + +int +il_force_reset(struct il_priv *il, bool external) +{ + struct il_force_reset *force_reset; + + if (test_bit(S_EXIT_PENDING, &il->status)) + return -EINVAL; + + force_reset = &il->force_reset; + force_reset->reset_request_count++; + if (!external) { + if (force_reset->last_force_reset_jiffies && + time_after(force_reset->last_force_reset_jiffies + + force_reset->reset_duration, jiffies)) { + D_INFO("force reset rejected\n"); + force_reset->reset_reject_count++; + return -EAGAIN; + } + } + force_reset->reset_success_count++; + force_reset->last_force_reset_jiffies = jiffies; + + /* + * if the request is from external(ex: debugfs), + * then always perform the request in regardless the module + * parameter setting + * if the request is from internal (uCode error or driver + * detect failure), then fw_restart module parameter + * need to be check before performing firmware reload + */ + + if (!external && !il->cfg->mod_params->restart_fw) { + D_INFO("Cancel firmware reload based on " + "module parameter setting\n"); + return 0; + } + + IL_ERR("On demand firmware reload\n"); + + /* Set the FW error flag -- cleared on il_down */ + set_bit(S_FW_ERROR, &il->status); + wake_up(&il->wait_command_queue); + /* + * Keep the restart process from trying to send host + * commands by clearing the INIT status bit + */ + clear_bit(S_READY, &il->status); + queue_work(il->workqueue, &il->restart); + + return 0; +} + +int +il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + enum nl80211_iftype newtype, bool newp2p) +{ + struct il_priv *il = hw->priv; + struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif); + u32 modes; + int err; + + newtype = ieee80211_iftype_p2p(newtype, newp2p); + + mutex_lock(&il->mutex); + + if (!ctx->vif || !il_is_ready_rf(il)) { + /* + * Huh? But wait ... this can maybe happen when + * we're in the middle of a firmware restart! + */ + err = -EBUSY; + goto out; + } + + modes = ctx->interface_modes | ctx->exclusive_interface_modes; + if (!(modes & BIT(newtype))) { + err = -EOPNOTSUPP; + goto out; + } + + if ((il->ctx.exclusive_interface_modes & BIT(il->ctx.vif->type)) || + (il->ctx.exclusive_interface_modes & BIT(newtype))) { + err = -EINVAL; + goto out; + } + + /* success */ + il_teardown_interface(il, vif, true); + vif->type = newtype; + vif->p2p = newp2p; + err = il_setup_interface(il, ctx); + WARN_ON(err); + /* + * We've switched internally, but submitting to the + * device may have failed for some reason. Mask this + * error, because otherwise mac80211 will not switch + * (and set the interface type back) and we'll be + * out of sync with it. + */ + err = 0; + +out: + mutex_unlock(&il->mutex); + return err; +} +EXPORT_SYMBOL(il_mac_change_interface); + +/* + * On every watchdog tick we check (latest) time stamp. If it does not + * change during timeout period and queue is not empty we reset firmware. + */ +static int +il_check_stuck_queue(struct il_priv *il, int cnt) +{ + struct il_tx_queue *txq = &il->txq[cnt]; + struct il_queue *q = &txq->q; + unsigned long timeout; + int ret; + + if (q->read_ptr == q->write_ptr) { + txq->time_stamp = jiffies; + return 0; + } + + timeout = + txq->time_stamp + + msecs_to_jiffies(il->cfg->base_params->wd_timeout); + + if (time_after(jiffies, timeout)) { + IL_ERR("Queue %d stuck for %u ms.\n", q->id, + il->cfg->base_params->wd_timeout); + ret = il_force_reset(il, false); + return (ret == -EAGAIN) ? 0 : 1; + } + + return 0; +} + +/* + * Making watchdog tick be a quarter of timeout assure we will + * discover the queue hung between timeout and 1.25*timeout + */ +#define IL_WD_TICK(timeout) ((timeout) / 4) + +/* + * Watchdog timer callback, we check each tx queue for stuck, if if hung + * we reset the firmware. If everything is fine just rearm the timer. + */ +void +il_bg_watchdog(unsigned long data) +{ + struct il_priv *il = (struct il_priv *)data; + int cnt; + unsigned long timeout; + + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + timeout = il->cfg->base_params->wd_timeout; + if (timeout == 0) + return; + + /* monitor and check for stuck cmd queue */ + if (il_check_stuck_queue(il, il->cmd_queue)) + return; + + /* monitor and check for other stuck queues */ + if (il_is_any_associated(il)) { + for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) { + /* skip as we already checked the command queue */ + if (cnt == il->cmd_queue) + continue; + if (il_check_stuck_queue(il, cnt)) + return; + } + } + + mod_timer(&il->watchdog, + jiffies + msecs_to_jiffies(IL_WD_TICK(timeout))); +} +EXPORT_SYMBOL(il_bg_watchdog); + +void +il_setup_watchdog(struct il_priv *il) +{ + unsigned int timeout = il->cfg->base_params->wd_timeout; + + if (timeout) + mod_timer(&il->watchdog, + jiffies + msecs_to_jiffies(IL_WD_TICK(timeout))); + else + del_timer(&il->watchdog); +} +EXPORT_SYMBOL(il_setup_watchdog); + +/* + * extended beacon time format + * time in usec will be changed into a 32-bit value in extended:internal format + * the extended part is the beacon counts + * the internal part is the time in usec within one beacon interval + */ +u32 +il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval) +{ + u32 quot; + u32 rem; + u32 interval = beacon_interval * TIME_UNIT; + + if (!interval || !usec) + return 0; + + quot = + (usec / + interval) & (il_beacon_time_mask_high(il, + il->hw_params. + beacon_time_tsf_bits) >> il-> + hw_params.beacon_time_tsf_bits); + rem = + (usec % interval) & il_beacon_time_mask_low(il, + il->hw_params. + beacon_time_tsf_bits); + + return (quot << il->hw_params.beacon_time_tsf_bits) + rem; +} +EXPORT_SYMBOL(il_usecs_to_beacons); + +/* base is usually what we get from ucode with each received frame, + * the same as HW timer counter counting down + */ +__le32 +il_add_beacon_time(struct il_priv *il, u32 base, u32 addon, + u32 beacon_interval) +{ + u32 base_low = base & il_beacon_time_mask_low(il, + il->hw_params. + beacon_time_tsf_bits); + u32 addon_low = addon & il_beacon_time_mask_low(il, + il->hw_params. + beacon_time_tsf_bits); + u32 interval = beacon_interval * TIME_UNIT; + u32 res = (base & il_beacon_time_mask_high(il, + il->hw_params. + beacon_time_tsf_bits)) + + (addon & il_beacon_time_mask_high(il, + il->hw_params. + beacon_time_tsf_bits)); + + if (base_low > addon_low) + res += base_low - addon_low; + else if (base_low < addon_low) { + res += interval + base_low - addon_low; + res += (1 << il->hw_params.beacon_time_tsf_bits); + } else + res += (1 << il->hw_params.beacon_time_tsf_bits); + + return cpu_to_le32(res); +} +EXPORT_SYMBOL(il_add_beacon_time); + +#ifdef CONFIG_PM + +int +il_pci_suspend(struct device *device) +{ + struct pci_dev *pdev = to_pci_dev(device); + struct il_priv *il = pci_get_drvdata(pdev); + + /* + * This function is called when system goes into suspend state + * mac80211 will call il_mac_stop() from the mac80211 suspend function + * first but since il_mac_stop() has no knowledge of who the caller is, + * it will not call apm_ops.stop() to stop the DMA operation. + * Calling apm_ops.stop here to make sure we stop the DMA. + */ + il_apm_stop(il); + + return 0; +} +EXPORT_SYMBOL(il_pci_suspend); + +int +il_pci_resume(struct device *device) +{ + struct pci_dev *pdev = to_pci_dev(device); + struct il_priv *il = pci_get_drvdata(pdev); + bool hw_rfkill = false; + + /* + * We disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state. + */ + pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); + + il_enable_interrupts(il); + + if (!(_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) + hw_rfkill = true; + + if (hw_rfkill) + set_bit(S_RF_KILL_HW, &il->status); + else + clear_bit(S_RF_KILL_HW, &il->status); + + wiphy_rfkill_set_hw_state(il->hw->wiphy, hw_rfkill); + + return 0; +} +EXPORT_SYMBOL(il_pci_resume); + +const struct dev_pm_ops il_pm_ops = { + .suspend = il_pci_suspend, + .resume = il_pci_resume, + .freeze = il_pci_suspend, + .thaw = il_pci_resume, + .poweroff = il_pci_suspend, + .restore = il_pci_resume, +}; +EXPORT_SYMBOL(il_pm_ops); + +#endif /* CONFIG_PM */ + +static void +il_update_qos(struct il_priv *il, struct il_rxon_context *ctx) +{ + if (test_bit(S_EXIT_PENDING, &il->status)) + return; + + if (!ctx->is_active) + return; + + ctx->qos_data.def_qos_parm.qos_flags = 0; + + if (ctx->qos_data.qos_active) + ctx->qos_data.def_qos_parm.qos_flags |= + QOS_PARAM_FLG_UPDATE_EDCA_MSK; + + if (ctx->ht.enabled) + ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; + + D_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n", + ctx->qos_data.qos_active, ctx->qos_data.def_qos_parm.qos_flags); + + il_send_cmd_pdu_async(il, ctx->qos_cmd, sizeof(struct il_qosparam_cmd), + &ctx->qos_data.def_qos_parm, NULL); +} + +/** + * il_mac_config - mac80211 config callback + */ +int +il_mac_config(struct ieee80211_hw *hw, u32 changed) +{ + struct il_priv *il = hw->priv; + const struct il_channel_info *ch_info; + struct ieee80211_conf *conf = &hw->conf; + struct ieee80211_channel *channel = conf->channel; + struct il_ht_config *ht_conf = &il->current_ht_config; + struct il_rxon_context *ctx = &il->ctx; + unsigned long flags = 0; + int ret = 0; + u16 ch; + int scan_active = 0; + bool ht_changed = false; + + if (WARN_ON(!il->cfg->ops->legacy)) + return -EOPNOTSUPP; + + mutex_lock(&il->mutex); + + D_MAC80211("enter to channel %d changed 0x%X\n", channel->hw_value, + changed); + + if (unlikely(test_bit(S_SCANNING, &il->status))) { + scan_active = 1; + D_MAC80211("scan active\n"); + } + + if (changed & + (IEEE80211_CONF_CHANGE_SMPS | IEEE80211_CONF_CHANGE_CHANNEL)) { + /* mac80211 uses static for non-HT which is what we want */ + il->current_ht_config.smps = conf->smps_mode; + + /* + * Recalculate chain counts. + * + * If monitor mode is enabled then mac80211 will + * set up the SM PS mode to OFF if an HT channel is + * configured. + */ + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx); + } + + /* during scanning mac80211 will delay channel setting until + * scan finish with changed = 0 + */ + if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) { + + if (scan_active) + goto set_ch_out; + + ch = channel->hw_value; + ch_info = il_get_channel_info(il, channel->band, ch); + if (!il_is_channel_valid(ch_info)) { + D_MAC80211("leave - invalid channel\n"); + ret = -EINVAL; + goto set_ch_out; + } + + if (il->iw_mode == NL80211_IFTYPE_ADHOC && + !il_is_channel_ibss(ch_info)) { + D_MAC80211("leave - not IBSS channel\n"); + ret = -EINVAL; + goto set_ch_out; + } + + spin_lock_irqsave(&il->lock, flags); + + /* Configure HT40 channels */ + if (ctx->ht.enabled != conf_is_ht(conf)) { + ctx->ht.enabled = conf_is_ht(conf); + ht_changed = true; + } + if (ctx->ht.enabled) { + if (conf_is_ht40_minus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_BELOW; + ctx->ht.is_40mhz = true; + } else if (conf_is_ht40_plus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + ctx->ht.is_40mhz = true; + } else { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_NONE; + ctx->ht.is_40mhz = false; + } + } else + ctx->ht.is_40mhz = false; + + /* + * Default to no protection. Protection mode will + * later be set from BSS config in il_ht_conf + */ + ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; + + /* if we are switching from ht to 2.4 clear flags + * from any ht related info since 2.4 does not + * support ht */ + if ((le16_to_cpu(ctx->staging.channel) != ch)) + ctx->staging.flags = 0; + + il_set_rxon_channel(il, channel, ctx); + il_set_rxon_ht(il, ht_conf); + + il_set_flags_for_band(il, ctx, channel->band, ctx->vif); + + spin_unlock_irqrestore(&il->lock, flags); + + if (il->cfg->ops->legacy->update_bcast_stations) + ret = il->cfg->ops->legacy->update_bcast_stations(il); + +set_ch_out: + /* The list of supported rates and rate mask can be different + * for each band; since the band may have changed, reset + * the rate mask to what mac80211 lists */ + il_set_rate(il); + } + + if (changed & (IEEE80211_CONF_CHANGE_PS | IEEE80211_CONF_CHANGE_IDLE)) { + ret = il_power_update_mode(il, false); + if (ret) + D_MAC80211("Error setting sleep level\n"); + } + + if (changed & IEEE80211_CONF_CHANGE_POWER) { + D_MAC80211("TX Power old=%d new=%d\n", il->tx_power_user_lmt, + conf->power_level); + + il_set_tx_power(il, conf->power_level, false); + } + + if (!il_is_ready(il)) { + D_MAC80211("leave - not ready\n"); + goto out; + } + + if (scan_active) + goto out; + + if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging))) + il_commit_rxon(il, ctx); + else + D_INFO("Not re-sending same RXON configuration.\n"); + if (ht_changed) + il_update_qos(il, ctx); + +out: + D_MAC80211("leave\n"); + mutex_unlock(&il->mutex); + return ret; +} +EXPORT_SYMBOL(il_mac_config); + +void +il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct il_priv *il = hw->priv; + unsigned long flags; + struct il_rxon_context *ctx = &il->ctx; + + if (WARN_ON(!il->cfg->ops->legacy)) + return; + + mutex_lock(&il->mutex); + D_MAC80211("enter\n"); + + spin_lock_irqsave(&il->lock, flags); + memset(&il->current_ht_config, 0, sizeof(struct il_ht_config)); + spin_unlock_irqrestore(&il->lock, flags); + + spin_lock_irqsave(&il->lock, flags); + + /* new association get rid of ibss beacon skb */ + if (il->beacon_skb) + dev_kfree_skb(il->beacon_skb); + + il->beacon_skb = NULL; + + il->timestamp = 0; + + spin_unlock_irqrestore(&il->lock, flags); + + il_scan_cancel_timeout(il, 100); + if (!il_is_ready_rf(il)) { + D_MAC80211("leave - not ready\n"); + mutex_unlock(&il->mutex); + return; + } + + /* we are restarting association process + * clear RXON_FILTER_ASSOC_MSK bit + */ + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + il_commit_rxon(il, ctx); + + il_set_rate(il); + + mutex_unlock(&il->mutex); + + D_MAC80211("leave\n"); +} +EXPORT_SYMBOL(il_mac_reset_tsf); + +static void +il_ht_conf(struct il_priv *il, struct ieee80211_vif *vif) +{ + struct il_ht_config *ht_conf = &il->current_ht_config; + struct ieee80211_sta *sta; + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif); + + D_ASSOC("enter:\n"); + + if (!ctx->ht.enabled) + return; + + ctx->ht.protection = + bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; + ctx->ht.non_gf_sta_present = + !!(bss_conf-> + ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); + + ht_conf->single_chain_sufficient = false; + + switch (vif->type) { + case NL80211_IFTYPE_STATION: + rcu_read_lock(); + sta = ieee80211_find_sta(vif, bss_conf->bssid); + if (sta) { + struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + int maxstreams; + + maxstreams = + (ht_cap->mcs. + tx_params & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) + >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; + maxstreams += 1; + + if (ht_cap->mcs.rx_mask[1] == 0 && + ht_cap->mcs.rx_mask[2] == 0) + ht_conf->single_chain_sufficient = true; + if (maxstreams <= 1) + ht_conf->single_chain_sufficient = true; + } else { + /* + * If at all, this can only happen through a race + * when the AP disconnects us while we're still + * setting up the connection, in that case mac80211 + * will soon tell us about that. + */ + ht_conf->single_chain_sufficient = true; + } + rcu_read_unlock(); + break; + case NL80211_IFTYPE_ADHOC: + ht_conf->single_chain_sufficient = true; + break; + default: + break; + } + + D_ASSOC("leave\n"); +} + +static inline void +il_set_no_assoc(struct il_priv *il, struct ieee80211_vif *vif) +{ + struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif); + + /* + * inform the ucode that there is no longer an + * association and that no more packets should be + * sent + */ + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + ctx->staging.assoc_id = 0; + il_commit_rxon(il, ctx); +} + +static void +il_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct il_priv *il = hw->priv; + unsigned long flags; + __le64 timestamp; + struct sk_buff *skb = ieee80211_beacon_get(hw, vif); + + if (!skb) + return; + + D_MAC80211("enter\n"); + + lockdep_assert_held(&il->mutex); + + if (!il->beacon_ctx) { + IL_ERR("update beacon but no beacon context!\n"); + dev_kfree_skb(skb); + return; + } + + spin_lock_irqsave(&il->lock, flags); + + if (il->beacon_skb) + dev_kfree_skb(il->beacon_skb); + + il->beacon_skb = skb; + + timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; + il->timestamp = le64_to_cpu(timestamp); + + D_MAC80211("leave\n"); + spin_unlock_irqrestore(&il->lock, flags); + + if (!il_is_ready_rf(il)) { + D_MAC80211("leave - RF not ready\n"); + return; + } + + il->cfg->ops->legacy->post_associate(il); +} + +void +il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, u32 changes) +{ + struct il_priv *il = hw->priv; + struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif); + int ret; + + if (WARN_ON(!il->cfg->ops->legacy)) + return; + + D_MAC80211("changes = 0x%X\n", changes); + + mutex_lock(&il->mutex); + + if (!il_is_alive(il)) { + mutex_unlock(&il->mutex); + return; + } + + if (changes & BSS_CHANGED_QOS) { + unsigned long flags; + + spin_lock_irqsave(&il->lock, flags); + ctx->qos_data.qos_active = bss_conf->qos; + il_update_qos(il, ctx); + spin_unlock_irqrestore(&il->lock, flags); + } + + if (changes & BSS_CHANGED_BEACON_ENABLED) { + /* + * the add_interface code must make sure we only ever + * have a single interface that could be beaconing at + * any time. + */ + if (vif->bss_conf.enable_beacon) + il->beacon_ctx = ctx; + else + il->beacon_ctx = NULL; + } + + if (changes & BSS_CHANGED_BSSID) { + D_MAC80211("BSSID %pM\n", bss_conf->bssid); + + /* + * If there is currently a HW scan going on in the + * background then we need to cancel it else the RXON + * below/in post_associate will fail. + */ + if (il_scan_cancel_timeout(il, 100)) { + IL_WARN("Aborted scan still in progress after 100ms\n"); + D_MAC80211("leaving - scan abort failed.\n"); + mutex_unlock(&il->mutex); + return; + } + + /* mac80211 only sets assoc when in STATION mode */ + if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) { + memcpy(ctx->staging.bssid_addr, bss_conf->bssid, + ETH_ALEN); + + /* currently needed in a few places */ + memcpy(il->bssid, bss_conf->bssid, ETH_ALEN); + } else { + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + } + + } + + /* + * This needs to be after setting the BSSID in case + * mac80211 decides to do both changes at once because + * it will invoke post_associate. + */ + if (vif->type == NL80211_IFTYPE_ADHOC && (changes & BSS_CHANGED_BEACON)) + il_beacon_update(hw, vif); + + if (changes & BSS_CHANGED_ERP_PREAMBLE) { + D_MAC80211("ERP_PREAMBLE %d\n", bss_conf->use_short_preamble); + if (bss_conf->use_short_preamble) + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + else + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + } + + if (changes & BSS_CHANGED_ERP_CTS_PROT) { + D_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot); + if (bss_conf->use_cts_prot && il->band != IEEE80211_BAND_5GHZ) + ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; + else + ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK; + if (bss_conf->use_cts_prot) + ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; + else + ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN; + } + + if (changes & BSS_CHANGED_BASIC_RATES) { + /* XXX use this information + * + * To do that, remove code from il_set_rate() and put something + * like this here: + * + if (A-band) + ctx->staging.ofdm_basic_rates = + bss_conf->basic_rates; + else + ctx->staging.ofdm_basic_rates = + bss_conf->basic_rates >> 4; + ctx->staging.cck_basic_rates = + bss_conf->basic_rates & 0xF; + */ + } + + if (changes & BSS_CHANGED_HT) { + il_ht_conf(il, vif); + + if (il->cfg->ops->hcmd->set_rxon_chain) + il->cfg->ops->hcmd->set_rxon_chain(il, ctx); + } + + if (changes & BSS_CHANGED_ASSOC) { + D_MAC80211("ASSOC %d\n", bss_conf->assoc); + if (bss_conf->assoc) { + il->timestamp = bss_conf->timestamp; + + if (!il_is_rfkill(il)) + il->cfg->ops->legacy->post_associate(il); + } else + il_set_no_assoc(il, vif); + } + + if (changes && il_is_associated_ctx(ctx) && bss_conf->aid) { + D_MAC80211("Changes (%#x) while associated\n", changes); + ret = il_send_rxon_assoc(il, ctx); + if (!ret) { + /* Sync active_rxon with latest change. */ + memcpy((void *)&ctx->active, &ctx->staging, + sizeof(struct il_rxon_cmd)); + } + } + + if (changes & BSS_CHANGED_BEACON_ENABLED) { + if (vif->bss_conf.enable_beacon) { + memcpy(ctx->staging.bssid_addr, bss_conf->bssid, + ETH_ALEN); + memcpy(il->bssid, bss_conf->bssid, ETH_ALEN); + il->cfg->ops->legacy->config_ap(il); + } else + il_set_no_assoc(il, vif); + } + + if (changes & BSS_CHANGED_IBSS) { + ret = + il->cfg->ops->legacy->manage_ibss_station(il, vif, + bss_conf-> + ibss_joined); + if (ret) + IL_ERR("failed to %s IBSS station %pM\n", + bss_conf->ibss_joined ? "add" : "remove", + bss_conf->bssid); + } + + mutex_unlock(&il->mutex); + + D_MAC80211("leave\n"); +} +EXPORT_SYMBOL(il_mac_bss_info_changed); + +irqreturn_t +il_isr(int irq, void *data) +{ + struct il_priv *il = data; + u32 inta, inta_mask; + u32 inta_fh; + unsigned long flags; + if (!il) + return IRQ_NONE; + + spin_lock_irqsave(&il->lock, flags); + + /* Disable (but don't clear!) interrupts here to avoid + * back-to-back ISRs and sporadic interrupts from our NIC. + * If we have something to service, the tasklet will re-enable ints. + * If we *don't* have something, we'll re-enable before leaving here. */ + inta_mask = _il_rd(il, CSR_INT_MASK); /* just for debug */ + _il_wr(il, CSR_INT_MASK, 0x00000000); + + /* Discover which interrupts are active/pending */ + inta = _il_rd(il, CSR_INT); + inta_fh = _il_rd(il, CSR_FH_INT_STATUS); + + /* Ignore interrupt if there's nothing in NIC to service. + * This may be due to IRQ shared with another device, + * or due to sporadic interrupts thrown from our NIC. */ + if (!inta && !inta_fh) { + D_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n"); + goto none; + } + + if (inta == 0xFFFFFFFF || (inta & 0xFFFFFFF0) == 0xa5a5a5a0) { + /* Hardware disappeared. It might have already raised + * an interrupt */ + IL_WARN("HARDWARE GONE?? INTA == 0x%08x\n", inta); + goto unplugged; + } + + D_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta, inta_mask, + inta_fh); + + inta &= ~CSR_INT_BIT_SCD; + + /* il_irq_tasklet() will service interrupts and re-enable them */ + if (likely(inta || inta_fh)) + tasklet_schedule(&il->irq_tasklet); + +unplugged: + spin_unlock_irqrestore(&il->lock, flags); + return IRQ_HANDLED; + +none: + /* re-enable interrupts here since we don't have anything to service. */ + /* only Re-enable if disabled by irq */ + if (test_bit(S_INT_ENABLED, &il->status)) + il_enable_interrupts(il); + spin_unlock_irqrestore(&il->lock, flags); + return IRQ_NONE; +} +EXPORT_SYMBOL(il_isr); + +/* + * il_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this + * function. + */ +void +il_tx_cmd_protection(struct il_priv *il, struct ieee80211_tx_info *info, + __le16 fc, __le32 *tx_flags) +{ + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { + *tx_flags |= TX_CMD_FLG_RTS_MSK; + *tx_flags &= ~TX_CMD_FLG_CTS_MSK; + *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; + + if (!ieee80211_is_mgmt(fc)) + return; + + switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { + case cpu_to_le16(IEEE80211_STYPE_AUTH): + case cpu_to_le16(IEEE80211_STYPE_DEAUTH): + case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): + case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): + *tx_flags &= ~TX_CMD_FLG_RTS_MSK; + *tx_flags |= TX_CMD_FLG_CTS_MSK; + break; + } + } else if (info->control.rates[0]. + flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + *tx_flags &= ~TX_CMD_FLG_RTS_MSK; + *tx_flags |= TX_CMD_FLG_CTS_MSK; + *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; + } +} +EXPORT_SYMBOL(il_tx_cmd_protection); diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h new file mode 100644 index 000000000000..1bc0b02f559c --- /dev/null +++ b/drivers/net/wireless/iwlegacy/common.h @@ -0,0 +1,3424 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ +#ifndef __il_core_h__ +#define __il_core_h__ + +#include <linux/interrupt.h> +#include <linux/pci.h> /* for struct pci_device_id */ +#include <linux/kernel.h> +#include <linux/leds.h> +#include <linux/wait.h> +#include <net/mac80211.h> +#include <net/ieee80211_radiotap.h> + +#include "commands.h" +#include "csr.h" +#include "prph.h" + +struct il_host_cmd; +struct il_cmd; +struct il_tx_queue; + +#define IL_ERR(f, a...) dev_err(&il->pci_dev->dev, f, ## a) +#define IL_WARN(f, a...) dev_warn(&il->pci_dev->dev, f, ## a) +#define IL_INFO(f, a...) dev_info(&il->pci_dev->dev, f, ## a) + +#define RX_QUEUE_SIZE 256 +#define RX_QUEUE_MASK 255 +#define RX_QUEUE_SIZE_LOG 8 + +/* + * RX related structures and functions + */ +#define RX_FREE_BUFFERS 64 +#define RX_LOW_WATERMARK 8 + +#define U32_PAD(n) ((4-(n))&0x3) + +/* CT-KILL constants */ +#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */ + +/* Default noise level to report when noise measurement is not available. + * This may be because we're: + * 1) Not associated (4965, no beacon stats being sent to driver) + * 2) Scanning (noise measurement does not apply to associated channel) + * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) + * Use default noise value of -127 ... this is below the range of measurable + * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. + * Also, -127 works better than 0 when averaging frames with/without + * noise info (e.g. averaging might be done in app); measured dBm values are + * always negative ... using a negative value as the default keeps all + * averages within an s8's (used in some apps) range of negative values. */ +#define IL_NOISE_MEAS_NOT_AVAILABLE (-127) + +/* + * RTS threshold here is total size [2347] minus 4 FCS bytes + * Per spec: + * a value of 0 means RTS on all data/management packets + * a value > max MSDU size means no RTS + * else RTS for data/management frames where MPDU is larger + * than RTS value. + */ +#define DEFAULT_RTS_THRESHOLD 2347U +#define MIN_RTS_THRESHOLD 0U +#define MAX_RTS_THRESHOLD 2347U +#define MAX_MSDU_SIZE 2304U +#define MAX_MPDU_SIZE 2346U +#define DEFAULT_BEACON_INTERVAL 100U +#define DEFAULT_SHORT_RETRY_LIMIT 7U +#define DEFAULT_LONG_RETRY_LIMIT 4U + +struct il_rx_buf { + dma_addr_t page_dma; + struct page *page; + struct list_head list; +}; + +#define rxb_addr(r) page_address(r->page) + +/* defined below */ +struct il_device_cmd; + +struct il_cmd_meta { + /* only for SYNC commands, iff the reply skb is wanted */ + struct il_host_cmd *source; + /* + * only for ASYNC commands + * (which is somewhat stupid -- look at common.c for instance + * which duplicates a bunch of code because the callback isn't + * invoked for SYNC commands, if it were and its result passed + * through it would be simpler...) + */ + void (*callback) (struct il_priv *il, struct il_device_cmd *cmd, + struct il_rx_pkt *pkt); + + /* The CMD_SIZE_HUGE flag bit indicates that the command + * structure is stored at the end of the shared queue memory. */ + u32 flags; + + DEFINE_DMA_UNMAP_ADDR(mapping); + DEFINE_DMA_UNMAP_LEN(len); +}; + +/* + * Generic queue structure + * + * Contains common data for Rx and Tx queues + */ +struct il_queue { + int n_bd; /* number of BDs in this queue */ + int write_ptr; /* 1-st empty entry (idx) host_w */ + int read_ptr; /* last used entry (idx) host_r */ + /* use for monitoring and recovering the stuck queue */ + dma_addr_t dma_addr; /* physical addr for BD's */ + int n_win; /* safe queue win */ + u32 id; + int low_mark; /* low watermark, resume queue if free + * space more than this */ + int high_mark; /* high watermark, stop queue if free + * space less than this */ +}; + +/* One for each TFD */ +struct il_tx_info { + struct sk_buff *skb; + struct il_rxon_context *ctx; +}; + +/** + * struct il_tx_queue - Tx Queue for DMA + * @q: generic Rx/Tx queue descriptor + * @bd: base of circular buffer of TFDs + * @cmd: array of command/TX buffer pointers + * @meta: array of meta data for each command/tx buffer + * @dma_addr_cmd: physical address of cmd/tx buffer array + * @txb: array of per-TFD driver data + * @time_stamp: time (in jiffies) of last read_ptr change + * @need_update: indicates need to update read/write idx + * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled + * + * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame + * descriptors) and required locking structures. + */ +#define TFD_TX_CMD_SLOTS 256 +#define TFD_CMD_SLOTS 32 + +struct il_tx_queue { + struct il_queue q; + void *tfds; + struct il_device_cmd **cmd; + struct il_cmd_meta *meta; + struct il_tx_info *txb; + unsigned long time_stamp; + u8 need_update; + u8 sched_retry; + u8 active; + u8 swq_id; +}; + +/* + * EEPROM access time values: + * + * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG. + * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1). + * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec. + * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG. + */ +#define IL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */ + +#define IL_EEPROM_SEM_TIMEOUT 10 /* microseconds */ +#define IL_EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ + +/* + * Regulatory channel usage flags in EEPROM struct il4965_eeprom_channel.flags. + * + * IBSS and/or AP operation is allowed *only* on those channels with + * (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because + * RADAR detection is not supported by the 4965 driver, but is a + * requirement for establishing a new network for legal operation on channels + * requiring RADAR detection or restricting ACTIVE scanning. + * + * NOTE: "WIDE" flag does not indicate anything about "HT40" 40 MHz channels. + * It only indicates that 20 MHz channel use is supported; HT40 channel + * usage is indicated by a separate set of regulatory flags for each + * HT40 channel pair. + * + * NOTE: Using a channel inappropriately will result in a uCode error! + */ +#define IL_NUM_TX_CALIB_GROUPS 5 +enum { + EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */ + EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */ + /* Bit 2 Reserved */ + EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */ + EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */ + EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */ + /* Bit 6 Reserved (was Narrow Channel) */ + EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */ +}; + +/* SKU Capabilities */ +/* 3945 only */ +#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0) +#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1) + +/* *regulatory* channel data format in eeprom, one for each channel. + * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */ +struct il_eeprom_channel { + u8 flags; /* EEPROM_CHANNEL_* flags copied from EEPROM */ + s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */ +} __packed; + +/* 3945 Specific */ +#define EEPROM_3945_EEPROM_VERSION (0x2f) + +/* 4965 has two radio transmitters (and 3 radio receivers) */ +#define EEPROM_TX_POWER_TX_CHAINS (2) + +/* 4965 has room for up to 8 sets of txpower calibration data */ +#define EEPROM_TX_POWER_BANDS (8) + +/* 4965 factory calibration measures txpower gain settings for + * each of 3 target output levels */ +#define EEPROM_TX_POWER_MEASUREMENTS (3) + +/* 4965 Specific */ +/* 4965 driver does not work with txpower calibration version < 5 */ +#define EEPROM_4965_TX_POWER_VERSION (5) +#define EEPROM_4965_EEPROM_VERSION (0x2f) +#define EEPROM_4965_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */ +#define EEPROM_4965_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */ +#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */ +#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */ + +/* 2.4 GHz */ +extern const u8 il_eeprom_band_1[14]; + +/* + * factory calibration data for one txpower level, on one channel, + * measured on one of the 2 tx chains (radio transmitter and associated + * antenna). EEPROM contains: + * + * 1) Temperature (degrees Celsius) of device when measurement was made. + * + * 2) Gain table idx used to achieve the target measurement power. + * This refers to the "well-known" gain tables (see 4965.h). + * + * 3) Actual measured output power, in half-dBm ("34" = 17 dBm). + * + * 4) RF power amplifier detector level measurement (not used). + */ +struct il_eeprom_calib_measure { + u8 temperature; /* Device temperature (Celsius) */ + u8 gain_idx; /* Index into gain table */ + u8 actual_pow; /* Measured RF output power, half-dBm */ + s8 pa_det; /* Power amp detector level (not used) */ +} __packed; + +/* + * measurement set for one channel. EEPROM contains: + * + * 1) Channel number measured + * + * 2) Measurements for each of 3 power levels for each of 2 radio transmitters + * (a.k.a. "tx chains") (6 measurements altogether) + */ +struct il_eeprom_calib_ch_info { + u8 ch_num; + struct il_eeprom_calib_measure + measurements[EEPROM_TX_POWER_TX_CHAINS] + [EEPROM_TX_POWER_MEASUREMENTS]; +} __packed; + +/* + * txpower subband info. + * + * For each frequency subband, EEPROM contains the following: + * + * 1) First and last channels within range of the subband. "0" values + * indicate that this sample set is not being used. + * + * 2) Sample measurement sets for 2 channels close to the range endpoints. + */ +struct il_eeprom_calib_subband_info { + u8 ch_from; /* channel number of lowest channel in subband */ + u8 ch_to; /* channel number of highest channel in subband */ + struct il_eeprom_calib_ch_info ch1; + struct il_eeprom_calib_ch_info ch2; +} __packed; + +/* + * txpower calibration info. EEPROM contains: + * + * 1) Factory-measured saturation power levels (maximum levels at which + * tx power amplifier can output a signal without too much distortion). + * There is one level for 2.4 GHz band and one for 5 GHz band. These + * values apply to all channels within each of the bands. + * + * 2) Factory-measured power supply voltage level. This is assumed to be + * constant (i.e. same value applies to all channels/bands) while the + * factory measurements are being made. + * + * 3) Up to 8 sets of factory-measured txpower calibration values. + * These are for different frequency ranges, since txpower gain + * characteristics of the analog radio circuitry vary with frequency. + * + * Not all sets need to be filled with data; + * struct il_eeprom_calib_subband_info contains range of channels + * (0 if unused) for each set of data. + */ +struct il_eeprom_calib_info { + u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */ + u8 saturation_power52; /* half-dBm */ + __le16 voltage; /* signed */ + struct il_eeprom_calib_subband_info band_info[EEPROM_TX_POWER_BANDS]; +} __packed; + +/* General */ +#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */ +#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */ +#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */ +#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */ +#define EEPROM_VERSION (2*0x44) /* 2 bytes */ +#define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */ +#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */ +#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */ +#define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */ +#define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */ + +/* The following masks are to be applied on EEPROM_RADIO_CONFIG */ +#define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */ +#define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */ +#define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */ +#define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */ +#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */ +#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */ + +#define EEPROM_3945_RF_CFG_TYPE_MAX 0x0 +#define EEPROM_4965_RF_CFG_TYPE_MAX 0x1 + +/* + * Per-channel regulatory data. + * + * Each channel that *might* be supported by iwl has a fixed location + * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory + * txpower (MSB). + * + * Entries immediately below are for 20 MHz channel width. HT40 (40 MHz) + * channels (only for 4965, not supported by 3945) appear later in the EEPROM. + * + * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 + */ +#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */ +#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */ +#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */ + +/* + * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196, + * 5.0 GHz channels 7, 8, 11, 12, 16 + * (4915-5080MHz) (none of these is ever supported) + */ +#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */ +#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */ + +/* + * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 + * (5170-5320MHz) + */ +#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */ +#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */ + +/* + * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 + * (5500-5700MHz) + */ +#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */ +#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */ + +/* + * 5.7 GHz channels 145, 149, 153, 157, 161, 165 + * (5725-5825MHz) + */ +#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */ +#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */ + +/* + * 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11) + * + * The channel listed is the center of the lower 20 MHz half of the channel. + * The overall center frequency is actually 2 channels (10 MHz) above that, + * and the upper half of each HT40 channel is centered 4 channels (20 MHz) away + * from the lower half; e.g. the upper half of HT40 channel 1 is channel 5, + * and the overall HT40 channel width centers on channel 3. + * + * NOTE: The RXON command uses 20 MHz channel numbers to specify the + * control channel to which to tune. RXON also specifies whether the + * control channel is the upper or lower half of a HT40 channel. + * + * NOTE: 4965 does not support HT40 channels on 2.4 GHz. + */ +#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0) /* 14 bytes */ + +/* + * 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64), + * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161) + */ +#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8) /* 22 bytes */ + +#define EEPROM_REGULATORY_BAND_NO_HT40 (0) + +struct il_eeprom_ops { + const u32 regulatory_bands[7]; + int (*acquire_semaphore) (struct il_priv *il); + void (*release_semaphore) (struct il_priv *il); +}; + +int il_eeprom_init(struct il_priv *il); +void il_eeprom_free(struct il_priv *il); +const u8 *il_eeprom_query_addr(const struct il_priv *il, size_t offset); +u16 il_eeprom_query16(const struct il_priv *il, size_t offset); +int il_init_channel_map(struct il_priv *il); +void il_free_channel_map(struct il_priv *il); +const struct il_channel_info *il_get_channel_info(const struct il_priv *il, + enum ieee80211_band band, + u16 channel); + +#define IL_NUM_SCAN_RATES (2) + +struct il4965_channel_tgd_info { + u8 type; + s8 max_power; +}; + +struct il4965_channel_tgh_info { + s64 last_radar_time; +}; + +#define IL4965_MAX_RATE (33) + +struct il3945_clip_group { + /* maximum power level to prevent clipping for each rate, derived by + * us from this band's saturation power in EEPROM */ + const s8 clip_powers[IL_MAX_RATES]; +}; + +/* current Tx power values to use, one for each rate for each channel. + * requested power is limited by: + * -- regulatory EEPROM limits for this channel + * -- hardware capabilities (clip-powers) + * -- spectrum management + * -- user preference (e.g. iwconfig) + * when requested power is set, base power idx must also be set. */ +struct il3945_channel_power_info { + struct il3945_tx_power tpc; /* actual radio and DSP gain settings */ + s8 power_table_idx; /* actual (compenst'd) idx into gain table */ + s8 base_power_idx; /* gain idx for power at factory temp. */ + s8 requested_power; /* power (dBm) requested for this chnl/rate */ +}; + +/* current scan Tx power values to use, one for each scan rate for each + * channel. */ +struct il3945_scan_power_info { + struct il3945_tx_power tpc; /* actual radio and DSP gain settings */ + s8 power_table_idx; /* actual (compenst'd) idx into gain table */ + s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */ +}; + +/* + * One for each channel, holds all channel setup data + * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant + * with one another! + */ +struct il_channel_info { + struct il4965_channel_tgd_info tgd; + struct il4965_channel_tgh_info tgh; + struct il_eeprom_channel eeprom; /* EEPROM regulatory limit */ + struct il_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for + * HT40 channel */ + + u8 channel; /* channel number */ + u8 flags; /* flags copied from EEPROM */ + s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ + s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ + s8 min_power; /* always 0 */ + s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ + + u8 group_idx; /* 0-4, maps channel to group1/2/3/4/5 */ + u8 band_idx; /* 0-4, maps channel to band1/2/3/4/5 */ + enum ieee80211_band band; + + /* HT40 channel info */ + s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ + u8 ht40_flags; /* flags copied from EEPROM */ + u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */ + + /* Radio/DSP gain settings for each "normal" data Tx rate. + * These include, in addition to RF and DSP gain, a few fields for + * remembering/modifying gain settings (idxes). */ + struct il3945_channel_power_info power_info[IL4965_MAX_RATE]; + + /* Radio/DSP gain settings for each scan rate, for directed scans. */ + struct il3945_scan_power_info scan_pwr_info[IL_NUM_SCAN_RATES]; +}; + +#define IL_TX_FIFO_BK 0 /* shared */ +#define IL_TX_FIFO_BE 1 +#define IL_TX_FIFO_VI 2 /* shared */ +#define IL_TX_FIFO_VO 3 +#define IL_TX_FIFO_UNUSED -1 + +/* Minimum number of queues. MAX_NUM is defined in hw specific files. + * Set the minimum to accommodate the 4 standard TX queues, 1 command + * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */ +#define IL_MIN_NUM_QUEUES 10 + +#define IL_DEFAULT_CMD_QUEUE_NUM 4 + +#define IEEE80211_DATA_LEN 2304 +#define IEEE80211_4ADDR_LEN 30 +#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) +#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) + +struct il_frame { + union { + struct ieee80211_hdr frame; + struct il_tx_beacon_cmd beacon; + u8 raw[IEEE80211_FRAME_LEN]; + u8 cmd[360]; + } u; + struct list_head list; +}; + +#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) +#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) +#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) + +enum { + CMD_SYNC = 0, + CMD_SIZE_NORMAL = 0, + CMD_NO_SKB = 0, + CMD_SIZE_HUGE = (1 << 0), + CMD_ASYNC = (1 << 1), + CMD_WANT_SKB = (1 << 2), + CMD_MAPPED = (1 << 3), +}; + +#define DEF_CMD_PAYLOAD_SIZE 320 + +/** + * struct il_device_cmd + * + * For allocation of the command and tx queues, this establishes the overall + * size of the largest command we send to uCode, except for a scan command + * (which is relatively huge; space is allocated separately). + */ +struct il_device_cmd { + struct il_cmd_header hdr; /* uCode API */ + union { + u32 flags; + u8 val8; + u16 val16; + u32 val32; + struct il_tx_cmd tx; + u8 payload[DEF_CMD_PAYLOAD_SIZE]; + } __packed cmd; +} __packed; + +#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct il_device_cmd)) + +struct il_host_cmd { + const void *data; + unsigned long reply_page; + void (*callback) (struct il_priv *il, struct il_device_cmd *cmd, + struct il_rx_pkt *pkt); + u32 flags; + u16 len; + u8 id; +}; + +#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 +#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 +#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 + +/** + * struct il_rx_queue - Rx queue + * @bd: driver's pointer to buffer of receive buffer descriptors (rbd) + * @bd_dma: bus address of buffer of receive buffer descriptors (rbd) + * @read: Shared idx to newest available Rx buffer + * @write: Shared idx to oldest written Rx packet + * @free_count: Number of pre-allocated buffers in rx_free + * @rx_free: list of free SKBs for use + * @rx_used: List of Rx buffers with no SKB + * @need_update: flag to indicate we need to update read/write idx + * @rb_stts: driver's pointer to receive buffer status + * @rb_stts_dma: bus address of receive buffer status + * + * NOTE: rx_free and rx_used are used as a FIFO for il_rx_bufs + */ +struct il_rx_queue { + __le32 *bd; + dma_addr_t bd_dma; + struct il_rx_buf pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; + struct il_rx_buf *queue[RX_QUEUE_SIZE]; + u32 read; + u32 write; + u32 free_count; + u32 write_actual; + struct list_head rx_free; + struct list_head rx_used; + int need_update; + struct il_rb_status *rb_stts; + dma_addr_t rb_stts_dma; + spinlock_t lock; +}; + +#define IL_SUPPORTED_RATES_IE_LEN 8 + +#define MAX_TID_COUNT 9 + +#define IL_INVALID_RATE 0xFF +#define IL_INVALID_VALUE -1 + +/** + * struct il_ht_agg -- aggregation status while waiting for block-ack + * @txq_id: Tx queue used for Tx attempt + * @frame_count: # frames attempted by Tx command + * @wait_for_ba: Expect block-ack before next Tx reply + * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx win + * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx win + * @bitmap1: High order, one bit for each frame pending ACK in Tx win + * @rate_n_flags: Rate at which Tx was attempted + * + * If C_TX indicates that aggregation was attempted, driver must wait + * for block ack (N_COMPRESSED_BA). This struct stores tx reply info + * until block ack arrives. + */ +struct il_ht_agg { + u16 txq_id; + u16 frame_count; + u16 wait_for_ba; + u16 start_idx; + u64 bitmap; + u32 rate_n_flags; +#define IL_AGG_OFF 0 +#define IL_AGG_ON 1 +#define IL_EMPTYING_HW_QUEUE_ADDBA 2 +#define IL_EMPTYING_HW_QUEUE_DELBA 3 + u8 state; +}; + +struct il_tid_data { + u16 seq_number; /* 4965 only */ + u16 tfds_in_queue; + struct il_ht_agg agg; +}; + +struct il_hw_key { + u32 cipher; + int keylen; + u8 keyidx; + u8 key[32]; +}; + +union il_ht_rate_supp { + u16 rates; + struct { + u8 siso_rate; + u8 mimo_rate; + }; +}; + +#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0) +#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1) +#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2) +#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3) +#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K +#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K +#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K + +/* + * Maximal MPDU density for TX aggregation + * 4 - 2us density + * 5 - 4us density + * 6 - 8us density + * 7 - 16us density + */ +#define CFG_HT_MPDU_DENSITY_2USEC (0x4) +#define CFG_HT_MPDU_DENSITY_4USEC (0x5) +#define CFG_HT_MPDU_DENSITY_8USEC (0x6) +#define CFG_HT_MPDU_DENSITY_16USEC (0x7) +#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC +#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC +#define CFG_HT_MPDU_DENSITY_MIN (0x1) + +struct il_ht_config { + bool single_chain_sufficient; + enum ieee80211_smps_mode smps; /* current smps mode */ +}; + +/* QoS structures */ +struct il_qos_info { + int qos_active; + struct il_qosparam_cmd def_qos_parm; +}; + +/* + * Structure should be accessed with sta_lock held. When station addition + * is in progress (IL_STA_UCODE_INPROGRESS) it is possible to access only + * the commands (il_addsta_cmd and il_link_quality_cmd) without + * sta_lock held. + */ +struct il_station_entry { + struct il_addsta_cmd sta; + struct il_tid_data tid[MAX_TID_COUNT]; + u8 used, ctxid; + struct il_hw_key keyinfo; + struct il_link_quality_cmd *lq; +}; + +struct il_station_priv_common { + struct il_rxon_context *ctx; + u8 sta_id; +}; + +/** + * struct il_vif_priv - driver's ilate per-interface information + * + * When mac80211 allocates a virtual interface, it can allocate + * space for us to put data into. + */ +struct il_vif_priv { + struct il_rxon_context *ctx; + u8 ibss_bssid_sta_id; +}; + +/* one for each uCode image (inst/data, boot/init/runtime) */ +struct fw_desc { + void *v_addr; /* access by driver */ + dma_addr_t p_addr; /* access by card's busmaster DMA */ + u32 len; /* bytes */ +}; + +/* uCode file layout */ +struct il_ucode_header { + __le32 ver; /* major/minor/API/serial */ + struct { + __le32 inst_size; /* bytes of runtime code */ + __le32 data_size; /* bytes of runtime data */ + __le32 init_size; /* bytes of init code */ + __le32 init_data_size; /* bytes of init data */ + __le32 boot_size; /* bytes of bootstrap code */ + u8 data[0]; /* in same order as sizes */ + } v1; +}; + +struct il4965_ibss_seq { + u8 mac[ETH_ALEN]; + u16 seq_num; + u16 frag_num; + unsigned long packet_time; + struct list_head list; +}; + +struct il_sensitivity_ranges { + u16 min_nrg_cck; + u16 max_nrg_cck; + + u16 nrg_th_cck; + u16 nrg_th_ofdm; + + u16 auto_corr_min_ofdm; + u16 auto_corr_min_ofdm_mrc; + u16 auto_corr_min_ofdm_x1; + u16 auto_corr_min_ofdm_mrc_x1; + + u16 auto_corr_max_ofdm; + u16 auto_corr_max_ofdm_mrc; + u16 auto_corr_max_ofdm_x1; + u16 auto_corr_max_ofdm_mrc_x1; + + u16 auto_corr_max_cck; + u16 auto_corr_max_cck_mrc; + u16 auto_corr_min_cck; + u16 auto_corr_min_cck_mrc; + + u16 barker_corr_th_min; + u16 barker_corr_th_min_mrc; + u16 nrg_th_cca; +}; + +#define KELVIN_TO_CELSIUS(x) ((x)-273) +#define CELSIUS_TO_KELVIN(x) ((x)+273) + +/** + * struct il_hw_params + * @max_txq_num: Max # Tx queues supported + * @dma_chnl_num: Number of Tx DMA/FIFO channels + * @scd_bc_tbls_size: size of scheduler byte count tables + * @tfd_size: TFD size + * @tx/rx_chains_num: Number of TX/RX chains + * @valid_tx/rx_ant: usable antennas + * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) + * @max_rxq_log: Log-base-2 of max_rxq_size + * @rx_page_order: Rx buffer page order + * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR + * @max_stations: + * @ht40_channel: is 40MHz width possible in band 2.4 + * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) + * @sw_crypto: 0 for hw, 1 for sw + * @max_xxx_size: for ucode uses + * @ct_kill_threshold: temperature threshold + * @beacon_time_tsf_bits: number of valid tsf bits for beacon time + * @struct il_sensitivity_ranges: range of sensitivity values + */ +struct il_hw_params { + u8 max_txq_num; + u8 dma_chnl_num; + u16 scd_bc_tbls_size; + u32 tfd_size; + u8 tx_chains_num; + u8 rx_chains_num; + u8 valid_tx_ant; + u8 valid_rx_ant; + u16 max_rxq_size; + u16 max_rxq_log; + u32 rx_page_order; + u32 rx_wrt_ptr_reg; + u8 max_stations; + u8 ht40_channel; + u8 max_beacon_itrvl; /* in 1024 ms */ + u32 max_inst_size; + u32 max_data_size; + u32 max_bsm_size; + u32 ct_kill_threshold; /* value in hw-dependent units */ + u16 beacon_time_tsf_bits; + const struct il_sensitivity_ranges *sens; +}; + +/****************************************************************************** + * + * Functions implemented in core module which are forward declared here + * for use by iwl-[4-5].c + * + * NOTE: The implementation of these functions are not hardware specific + * which is why they are in the core module files. + * + * Naming convention -- + * il_ <-- Is part of iwlwifi + * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) + * il4965_bg_ <-- Called from work queue context + * il4965_mac_ <-- mac80211 callback + * + ****************************************************************************/ +extern void il4965_update_chain_flags(struct il_priv *il); +extern const u8 il_bcast_addr[ETH_ALEN]; +extern int il_queue_space(const struct il_queue *q); +static inline int +il_queue_used(const struct il_queue *q, int i) +{ + return q->write_ptr >= q->read_ptr ? (i >= q->read_ptr && + i < q->write_ptr) : !(i < + q->read_ptr + && i >= + q-> + write_ptr); +} + +static inline u8 +il_get_cmd_idx(struct il_queue *q, u32 idx, int is_huge) +{ + /* + * This is for init calibration result and scan command which + * required buffer > TFD_MAX_PAYLOAD_SIZE, + * the big buffer at end of command array + */ + if (is_huge) + return q->n_win; /* must be power of 2 */ + + /* Otherwise, use normal size buffers */ + return idx & (q->n_win - 1); +} + +struct il_dma_ptr { + dma_addr_t dma; + void *addr; + size_t size; +}; + +#define IL_OPERATION_MODE_AUTO 0 +#define IL_OPERATION_MODE_HT_ONLY 1 +#define IL_OPERATION_MODE_MIXED 2 +#define IL_OPERATION_MODE_20MHZ 3 + +#define IL_TX_CRC_SIZE 4 +#define IL_TX_DELIMITER_SIZE 4 + +#define TX_POWER_IL_ILLEGAL_VOLTAGE -10000 + +/* Sensitivity and chain noise calibration */ +#define INITIALIZATION_VALUE 0xFFFF +#define IL4965_CAL_NUM_BEACONS 20 +#define IL_CAL_NUM_BEACONS 16 +#define MAXIMUM_ALLOWED_PATHLOSS 15 + +#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 + +#define MAX_FA_OFDM 50 +#define MIN_FA_OFDM 5 +#define MAX_FA_CCK 50 +#define MIN_FA_CCK 5 + +#define AUTO_CORR_STEP_OFDM 1 + +#define AUTO_CORR_STEP_CCK 3 +#define AUTO_CORR_MAX_TH_CCK 160 + +#define NRG_DIFF 2 +#define NRG_STEP_CCK 2 +#define NRG_MARGIN 8 +#define MAX_NUMBER_CCK_NO_FA 100 + +#define AUTO_CORR_CCK_MIN_VAL_DEF (125) + +#define CHAIN_A 0 +#define CHAIN_B 1 +#define CHAIN_C 2 +#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 +#define ALL_BAND_FILTER 0xFF00 +#define IN_BAND_FILTER 0xFF +#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF + +#define NRG_NUM_PREV_STAT_L 20 +#define NUM_RX_CHAINS 3 + +enum il4965_false_alarm_state { + IL_FA_TOO_MANY = 0, + IL_FA_TOO_FEW = 1, + IL_FA_GOOD_RANGE = 2, +}; + +enum il4965_chain_noise_state { + IL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ + IL_CHAIN_NOISE_ACCUMULATE, + IL_CHAIN_NOISE_CALIBRATED, + IL_CHAIN_NOISE_DONE, +}; + +enum il4965_calib_enabled_state { + IL_CALIB_DISABLED = 0, /* must be 0 */ + IL_CALIB_ENABLED = 1, +}; + +/* + * enum il_calib + * defines the order in which results of initial calibrations + * should be sent to the runtime uCode + */ +enum il_calib { + IL_CALIB_MAX, +}; + +/* Opaque calibration results */ +struct il_calib_result { + void *buf; + size_t buf_len; +}; + +enum ucode_type { + UCODE_NONE = 0, + UCODE_INIT, + UCODE_RT +}; + +/* Sensitivity calib data */ +struct il_sensitivity_data { + u32 auto_corr_ofdm; + u32 auto_corr_ofdm_mrc; + u32 auto_corr_ofdm_x1; + u32 auto_corr_ofdm_mrc_x1; + u32 auto_corr_cck; + u32 auto_corr_cck_mrc; + + u32 last_bad_plcp_cnt_ofdm; + u32 last_fa_cnt_ofdm; + u32 last_bad_plcp_cnt_cck; + u32 last_fa_cnt_cck; + + u32 nrg_curr_state; + u32 nrg_prev_state; + u32 nrg_value[10]; + u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; + u32 nrg_silence_ref; + u32 nrg_energy_idx; + u32 nrg_silence_idx; + u32 nrg_th_cck; + s32 nrg_auto_corr_silence_diff; + u32 num_in_cck_no_fa; + u32 nrg_th_ofdm; + + u16 barker_corr_th_min; + u16 barker_corr_th_min_mrc; + u16 nrg_th_cca; +}; + +/* Chain noise (differential Rx gain) calib data */ +struct il_chain_noise_data { + u32 active_chains; + u32 chain_noise_a; + u32 chain_noise_b; + u32 chain_noise_c; + u32 chain_signal_a; + u32 chain_signal_b; + u32 chain_signal_c; + u16 beacon_count; + u8 disconn_array[NUM_RX_CHAINS]; + u8 delta_gain_code[NUM_RX_CHAINS]; + u8 radio_write; + u8 state; +}; + +#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ +#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ + +#define IL_TRAFFIC_ENTRIES (256) +#define IL_TRAFFIC_ENTRY_SIZE (64) + +enum { + MEASUREMENT_READY = (1 << 0), + MEASUREMENT_ACTIVE = (1 << 1), +}; + +/* interrupt stats */ +struct isr_stats { + u32 hw; + u32 sw; + u32 err_code; + u32 sch; + u32 alive; + u32 rfkill; + u32 ctkill; + u32 wakeup; + u32 rx; + u32 handlers[IL_CN_MAX]; + u32 tx; + u32 unhandled; +}; + +/* management stats */ +enum il_mgmt_stats { + MANAGEMENT_ASSOC_REQ = 0, + MANAGEMENT_ASSOC_RESP, + MANAGEMENT_REASSOC_REQ, + MANAGEMENT_REASSOC_RESP, + MANAGEMENT_PROBE_REQ, + MANAGEMENT_PROBE_RESP, + MANAGEMENT_BEACON, + MANAGEMENT_ATIM, + MANAGEMENT_DISASSOC, + MANAGEMENT_AUTH, + MANAGEMENT_DEAUTH, + MANAGEMENT_ACTION, + MANAGEMENT_MAX, +}; +/* control stats */ +enum il_ctrl_stats { + CONTROL_BACK_REQ = 0, + CONTROL_BACK, + CONTROL_PSPOLL, + CONTROL_RTS, + CONTROL_CTS, + CONTROL_ACK, + CONTROL_CFEND, + CONTROL_CFENDACK, + CONTROL_MAX, +}; + +struct traffic_stats { +#ifdef CONFIG_IWLEGACY_DEBUGFS + u32 mgmt[MANAGEMENT_MAX]; + u32 ctrl[CONTROL_MAX]; + u32 data_cnt; + u64 data_bytes; +#endif +}; + +/* + * host interrupt timeout value + * used with setting interrupt coalescing timer + * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit + * + * default interrupt coalescing timer is 64 x 32 = 2048 usecs + * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs + */ +#define IL_HOST_INT_TIMEOUT_MAX (0xFF) +#define IL_HOST_INT_TIMEOUT_DEF (0x40) +#define IL_HOST_INT_TIMEOUT_MIN (0x0) +#define IL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF) +#define IL_HOST_INT_CALIB_TIMEOUT_DEF (0x10) +#define IL_HOST_INT_CALIB_TIMEOUT_MIN (0x0) + +#define IL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5) + +/* TX queue watchdog timeouts in mSecs */ +#define IL_DEF_WD_TIMEOUT (2000) +#define IL_LONG_WD_TIMEOUT (10000) +#define IL_MAX_WD_TIMEOUT (120000) + +struct il_force_reset { + int reset_request_count; + int reset_success_count; + int reset_reject_count; + unsigned long reset_duration; + unsigned long last_force_reset_jiffies; +}; + +/* extend beacon time format bit shifting */ +/* + * for _3945 devices + * bits 31:24 - extended + * bits 23:0 - interval + */ +#define IL3945_EXT_BEACON_TIME_POS 24 +/* + * for _4965 devices + * bits 31:22 - extended + * bits 21:0 - interval + */ +#define IL4965_EXT_BEACON_TIME_POS 22 + +struct il_rxon_context { + struct ieee80211_vif *vif; + + const u8 *ac_to_fifo; + const u8 *ac_to_queue; + u8 mcast_queue; + + /* + * We could use the vif to indicate active, but we + * also need it to be active during disabling when + * we already removed the vif for type setting. + */ + bool always_active, is_active; + + bool ht_need_multiple_chains; + + int ctxid; + + u32 interface_modes, exclusive_interface_modes; + u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype; + + /* + * We declare this const so it can only be + * changed via explicit cast within the + * routines that actually update the physical + * hardware. + */ + const struct il_rxon_cmd active; + struct il_rxon_cmd staging; + + struct il_rxon_time_cmd timing; + + struct il_qos_info qos_data; + + u8 bcast_sta_id, ap_sta_id; + + u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd; + u8 qos_cmd; + u8 wep_key_cmd; + + struct il_wep_key wep_keys[WEP_KEYS_MAX]; + u8 key_mapping_keys; + + __le32 station_flags; + + struct { + bool non_gf_sta_present; + u8 protection; + bool enabled, is_40mhz; + u8 extension_chan_offset; + } ht; +}; + +struct il_power_mgr { + struct il_powertable_cmd sleep_cmd; + struct il_powertable_cmd sleep_cmd_next; + int debug_sleep_level_override; + bool pci_pm; +}; + +struct il_priv { + + /* ieee device used by generic ieee processing code */ + struct ieee80211_hw *hw; + struct ieee80211_channel *ieee_channels; + struct ieee80211_rate *ieee_rates; + struct il_cfg *cfg; + + /* temporary frame storage list */ + struct list_head free_frames; + int frames_count; + + enum ieee80211_band band; + int alloc_rxb_page; + + void (*handlers[IL_CN_MAX]) (struct il_priv *il, + struct il_rx_buf *rxb); + + struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; + + /* spectrum measurement report caching */ + struct il_spectrum_notification measure_report; + u8 measurement_status; + + /* ucode beacon time */ + u32 ucode_beacon_time; + int missed_beacon_threshold; + + /* track IBSS manager (last beacon) status */ + u32 ibss_manager; + + /* force reset */ + struct il_force_reset force_reset; + + /* we allocate array of il_channel_info for NIC's valid channels. + * Access via channel # using indirect idx array */ + struct il_channel_info *channel_info; /* channel info array */ + u8 channel_count; /* # of channels */ + + /* thermal calibration */ + s32 temperature; /* degrees Kelvin */ + s32 last_temperature; + + /* init calibration results */ + struct il_calib_result calib_results[IL_CALIB_MAX]; + + /* Scan related variables */ + unsigned long scan_start; + unsigned long scan_start_tsf; + void *scan_cmd; + enum ieee80211_band scan_band; + struct cfg80211_scan_request *scan_request; + struct ieee80211_vif *scan_vif; + u8 scan_tx_ant[IEEE80211_NUM_BANDS]; + u8 mgmt_tx_ant; + + /* spinlock */ + spinlock_t lock; /* protect general shared data */ + spinlock_t hcmd_lock; /* protect hcmd */ + spinlock_t reg_lock; /* protect hw register access */ + struct mutex mutex; + + /* basic pci-network driver stuff */ + struct pci_dev *pci_dev; + + /* pci hardware address support */ + void __iomem *hw_base; + u32 hw_rev; + u32 hw_wa_rev; + u8 rev_id; + + /* command queue number */ + u8 cmd_queue; + + /* max number of station keys */ + u8 sta_key_max_num; + + /* EEPROM MAC addresses */ + struct mac_address addresses[1]; + + /* uCode images, save to reload in case of failure */ + int fw_idx; /* firmware we're trying to load */ + u32 ucode_ver; /* version of ucode, copy of + il_ucode.ver */ + struct fw_desc ucode_code; /* runtime inst */ + struct fw_desc ucode_data; /* runtime data original */ + struct fw_desc ucode_data_backup; /* runtime data save/restore */ + struct fw_desc ucode_init; /* initialization inst */ + struct fw_desc ucode_init_data; /* initialization data */ + struct fw_desc ucode_boot; /* bootstrap inst */ + enum ucode_type ucode_type; + u8 ucode_write_complete; /* the image write is complete */ + char firmware_name[25]; + + struct il_rxon_context ctx; + + __le16 switch_channel; + + /* 1st responses from initialize and runtime uCode images. + * _4965's initialize alive response contains some calibration data. */ + struct il_init_alive_resp card_alive_init; + struct il_alive_resp card_alive; + + u16 active_rate; + + u8 start_calib; + struct il_sensitivity_data sensitivity_data; + struct il_chain_noise_data chain_noise_data; + __le16 sensitivity_tbl[HD_TBL_SIZE]; + + struct il_ht_config current_ht_config; + + /* Rate scaling data */ + u8 retry_rate; + + wait_queue_head_t wait_command_queue; + + int activity_timer_active; + + /* Rx and Tx DMA processing queues */ + struct il_rx_queue rxq; + struct il_tx_queue *txq; + unsigned long txq_ctx_active_msk; + struct il_dma_ptr kw; /* keep warm address */ + struct il_dma_ptr scd_bc_tbls; + + u32 scd_base_addr; /* scheduler sram base address */ + + unsigned long status; + + /* counts mgmt, ctl, and data packets */ + struct traffic_stats tx_stats; + struct traffic_stats rx_stats; + + /* counts interrupts */ + struct isr_stats isr_stats; + + struct il_power_mgr power_data; + + /* context information */ + u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */ + + /* station table variables */ + + /* Note: if lock and sta_lock are needed, lock must be acquired first */ + spinlock_t sta_lock; + int num_stations; + struct il_station_entry stations[IL_STATION_COUNT]; + unsigned long ucode_key_table; + + /* queue refcounts */ +#define IL_MAX_HW_QUEUES 32 + unsigned long queue_stopped[BITS_TO_LONGS(IL_MAX_HW_QUEUES)]; + /* for each AC */ + atomic_t queue_stop_count[4]; + + /* Indication if ieee80211_ops->open has been called */ + u8 is_open; + + u8 mac80211_registered; + + /* eeprom -- this is in the card's little endian byte order */ + u8 *eeprom; + struct il_eeprom_calib_info *calib_info; + + enum nl80211_iftype iw_mode; + + /* Last Rx'd beacon timestamp */ + u64 timestamp; + + union { +#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE) + struct { + void *shared_virt; + dma_addr_t shared_phys; + + struct delayed_work thermal_periodic; + struct delayed_work rfkill_poll; + + struct il3945_notif_stats stats; +#ifdef CONFIG_IWLEGACY_DEBUGFS + struct il3945_notif_stats accum_stats; + struct il3945_notif_stats delta_stats; + struct il3945_notif_stats max_delta; +#endif + + u32 sta_supp_rates; + int last_rx_rssi; /* From Rx packet stats */ + + /* Rx'd packet timing information */ + u32 last_beacon_time; + u64 last_tsf; + + /* + * each calibration channel group in the + * EEPROM has a derived clip setting for + * each rate. + */ + const struct il3945_clip_group clip_groups[5]; + + } _3945; +#endif +#if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE) + struct { + struct il_rx_phy_res last_phy_res; + bool last_phy_res_valid; + + struct completion firmware_loading_complete; + + /* + * chain noise reset and gain commands are the + * two extra calibration commands follows the standard + * phy calibration commands + */ + u8 phy_calib_chain_noise_reset_cmd; + u8 phy_calib_chain_noise_gain_cmd; + + struct il_notif_stats stats; +#ifdef CONFIG_IWLEGACY_DEBUGFS + struct il_notif_stats accum_stats; + struct il_notif_stats delta_stats; + struct il_notif_stats max_delta; +#endif + + } _4965; +#endif + }; + + struct il_hw_params hw_params; + + u32 inta_mask; + + struct workqueue_struct *workqueue; + + struct work_struct restart; + struct work_struct scan_completed; + struct work_struct rx_replenish; + struct work_struct abort_scan; + + struct il_rxon_context *beacon_ctx; + struct sk_buff *beacon_skb; + + struct work_struct tx_flush; + + struct tasklet_struct irq_tasklet; + + struct delayed_work init_alive_start; + struct delayed_work alive_start; + struct delayed_work scan_check; + + /* TX Power */ + s8 tx_power_user_lmt; + s8 tx_power_device_lmt; + s8 tx_power_next; + +#ifdef CONFIG_IWLEGACY_DEBUG + /* debugging info */ + u32 debug_level; /* per device debugging will override global + il_debug_level if set */ +#endif /* CONFIG_IWLEGACY_DEBUG */ +#ifdef CONFIG_IWLEGACY_DEBUGFS + /* debugfs */ + u16 tx_traffic_idx; + u16 rx_traffic_idx; + u8 *tx_traffic; + u8 *rx_traffic; + struct dentry *debugfs_dir; + u32 dbgfs_sram_offset, dbgfs_sram_len; + bool disable_ht40; +#endif /* CONFIG_IWLEGACY_DEBUGFS */ + + struct work_struct txpower_work; + u32 disable_sens_cal; + u32 disable_chain_noise_cal; + u32 disable_tx_power_cal; + struct work_struct run_time_calib_work; + struct timer_list stats_periodic; + struct timer_list watchdog; + bool hw_ready; + + struct led_classdev led; + unsigned long blink_on, blink_off; + bool led_registered; +}; /*il_priv */ + +static inline void +il_txq_ctx_activate(struct il_priv *il, int txq_id) +{ + set_bit(txq_id, &il->txq_ctx_active_msk); +} + +static inline void +il_txq_ctx_deactivate(struct il_priv *il, int txq_id) +{ + clear_bit(txq_id, &il->txq_ctx_active_msk); +} + +static inline struct ieee80211_hdr * +il_tx_queue_get_hdr(struct il_priv *il, int txq_id, int idx) +{ + if (il->txq[txq_id].txb[idx].skb) + return (struct ieee80211_hdr *)il->txq[txq_id].txb[idx].skb-> + data; + return NULL; +} + +static inline struct il_rxon_context * +il_rxon_ctx_from_vif(struct ieee80211_vif *vif) +{ + struct il_vif_priv *vif_priv = (void *)vif->drv_priv; + + return vif_priv->ctx; +} + +#define for_each_context(il, _ctx) \ + for (_ctx = &il->ctx; _ctx == &il->ctx; _ctx++) + +static inline int +il_is_associated(struct il_priv *il) +{ + return (il->ctx.active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; +} + +static inline int +il_is_any_associated(struct il_priv *il) +{ + return il_is_associated(il); +} + +static inline int +il_is_associated_ctx(struct il_rxon_context *ctx) +{ + return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; +} + +static inline int +il_is_channel_valid(const struct il_channel_info *ch_info) +{ + if (ch_info == NULL) + return 0; + return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; +} + +static inline int +il_is_channel_radar(const struct il_channel_info *ch_info) +{ + return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; +} + +static inline u8 +il_is_channel_a_band(const struct il_channel_info *ch_info) +{ + return ch_info->band == IEEE80211_BAND_5GHZ; +} + +static inline int +il_is_channel_passive(const struct il_channel_info *ch) +{ + return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; +} + +static inline int +il_is_channel_ibss(const struct il_channel_info *ch) +{ + return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0; +} + +static inline void +__il_free_pages(struct il_priv *il, struct page *page) +{ + __free_pages(page, il->hw_params.rx_page_order); + il->alloc_rxb_page--; +} + +static inline void +il_free_pages(struct il_priv *il, unsigned long page) +{ + free_pages(page, il->hw_params.rx_page_order); + il->alloc_rxb_page--; +} + +#define IWLWIFI_VERSION "in-tree:" +#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation" +#define DRV_AUTHOR "<ilw@linux.intel.com>" + +#define IL_PCI_DEVICE(dev, subdev, cfg) \ + .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \ + .subvendor = PCI_ANY_ID, .subdevice = (subdev), \ + .driver_data = (kernel_ulong_t)&(cfg) + +#define TIME_UNIT 1024 + +#define IL_SKU_G 0x1 +#define IL_SKU_A 0x2 +#define IL_SKU_N 0x8 + +#define IL_CMD(x) case x: return #x + +/* Size of one Rx buffer in host DRAM */ +#define IL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */ +#define IL_RX_BUF_SIZE_4K (4 * 1024) +#define IL_RX_BUF_SIZE_8K (8 * 1024) + +struct il_hcmd_ops { + int (*rxon_assoc) (struct il_priv *il, struct il_rxon_context *ctx); + int (*commit_rxon) (struct il_priv *il, struct il_rxon_context *ctx); + void (*set_rxon_chain) (struct il_priv *il, + struct il_rxon_context *ctx); +}; + +struct il_hcmd_utils_ops { + u16(*get_hcmd_size) (u8 cmd_id, u16 len); + u16(*build_addsta_hcmd) (const struct il_addsta_cmd *cmd, u8 *data); + int (*request_scan) (struct il_priv *il, struct ieee80211_vif *vif); + void (*post_scan) (struct il_priv *il); +}; + +struct il_apm_ops { + int (*init) (struct il_priv *il); + void (*config) (struct il_priv *il); +}; + +#ifdef CONFIG_IWLEGACY_DEBUGFS +struct il_debugfs_ops { + ssize_t(*rx_stats_read) (struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); + ssize_t(*tx_stats_read) (struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); + ssize_t(*general_stats_read) (struct file *file, + char __user *user_buf, size_t count, + loff_t *ppos); +}; +#endif + +struct il_temp_ops { + void (*temperature) (struct il_priv *il); +}; + +struct il_lib_ops { + /* set hw dependent parameters */ + int (*set_hw_params) (struct il_priv *il); + /* Handling TX */ + void (*txq_update_byte_cnt_tbl) (struct il_priv *il, + struct il_tx_queue *txq, + u16 byte_cnt); + int (*txq_attach_buf_to_tfd) (struct il_priv *il, + struct il_tx_queue *txq, dma_addr_t addr, + u16 len, u8 reset, u8 pad); + void (*txq_free_tfd) (struct il_priv *il, struct il_tx_queue *txq); + int (*txq_init) (struct il_priv *il, struct il_tx_queue *txq); + /* setup Rx handler */ + void (*handler_setup) (struct il_priv *il); + /* alive notification after init uCode load */ + void (*init_alive_start) (struct il_priv *il); + /* check validity of rtc data address */ + int (*is_valid_rtc_data_addr) (u32 addr); + /* 1st ucode load */ + int (*load_ucode) (struct il_priv *il); + + void (*dump_nic_error_log) (struct il_priv *il); + int (*dump_fh) (struct il_priv *il, char **buf, bool display); + int (*set_channel_switch) (struct il_priv *il, + struct ieee80211_channel_switch *ch_switch); + /* power management */ + struct il_apm_ops apm_ops; + + /* power */ + int (*send_tx_power) (struct il_priv *il); + void (*update_chain_flags) (struct il_priv *il); + + /* eeprom operations */ + struct il_eeprom_ops eeprom_ops; + + /* temperature */ + struct il_temp_ops temp_ops; + +#ifdef CONFIG_IWLEGACY_DEBUGFS + struct il_debugfs_ops debugfs_ops; +#endif + +}; + +struct il_led_ops { + int (*cmd) (struct il_priv *il, struct il_led_cmd *led_cmd); +}; + +struct il_legacy_ops { + void (*post_associate) (struct il_priv *il); + void (*config_ap) (struct il_priv *il); + /* station management */ + int (*update_bcast_stations) (struct il_priv *il); + int (*manage_ibss_station) (struct il_priv *il, + struct ieee80211_vif *vif, bool add); +}; + +struct il_ops { + const struct il_lib_ops *lib; + const struct il_hcmd_ops *hcmd; + const struct il_hcmd_utils_ops *utils; + const struct il_led_ops *led; + const struct il_nic_ops *nic; + const struct il_legacy_ops *legacy; + const struct ieee80211_ops *ieee80211_ops; +}; + +struct il_mod_params { + int sw_crypto; /* def: 0 = using hardware encryption */ + int disable_hw_scan; /* def: 0 = use h/w scan */ + int num_of_queues; /* def: HW dependent */ + int disable_11n; /* def: 0 = 11n capabilities enabled */ + int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */ + int antenna; /* def: 0 = both antennas (use diversity) */ + int restart_fw; /* def: 1 = restart firmware */ +}; + +/* + * @led_compensation: compensate on the led on/off time per HW according + * to the deviation to achieve the desired led frequency. + * The detail algorithm is described in common.c + * @chain_noise_num_beacons: number of beacons used to compute chain noise + * @wd_timeout: TX queues watchdog timeout + * @temperature_kelvin: temperature report by uCode in kelvin + * @ucode_tracing: support ucode continuous tracing + * @sensitivity_calib_by_driver: driver has the capability to perform + * sensitivity calibration operation + * @chain_noise_calib_by_driver: driver has the capability to perform + * chain noise calibration operation + */ +struct il_base_params { + int eeprom_size; + int num_of_queues; /* def: HW dependent */ + int num_of_ampdu_queues; /* def: HW dependent */ + /* for il_apm_init() */ + u32 pll_cfg_val; + bool set_l0s; + bool use_bsm; + + u16 led_compensation; + int chain_noise_num_beacons; + unsigned int wd_timeout; + bool temperature_kelvin; + const bool ucode_tracing; + const bool sensitivity_calib_by_driver; + const bool chain_noise_calib_by_driver; +}; + +#define IL_LED_SOLID 11 +#define IL_DEF_LED_INTRVL cpu_to_le32(1000) + +#define IL_LED_ACTIVITY (0<<1) +#define IL_LED_LINK (1<<1) + +/* + * LED mode + * IL_LED_DEFAULT: use device default + * IL_LED_RF_STATE: turn LED on/off based on RF state + * LED ON = RF ON + * LED OFF = RF OFF + * IL_LED_BLINK: adjust led blink rate based on blink table + */ +enum il_led_mode { + IL_LED_DEFAULT, + IL_LED_RF_STATE, + IL_LED_BLINK, +}; + +void il_leds_init(struct il_priv *il); +void il_leds_exit(struct il_priv *il); + +/** + * struct il_cfg + * @fw_name_pre: Firmware filename prefix. The api version and extension + * (.ucode) will be added to filename before loading from disk. The + * filename is constructed as fw_name_pre<api>.ucode. + * @ucode_api_max: Highest version of uCode API supported by driver. + * @ucode_api_min: Lowest version of uCode API supported by driver. + * @scan_antennas: available antenna for scan operation + * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off) + * + * We enable the driver to be backward compatible wrt API version. The + * driver specifies which APIs it supports (with @ucode_api_max being the + * highest and @ucode_api_min the lowest). Firmware will only be loaded if + * it has a supported API version. The firmware's API version will be + * stored in @il_priv, enabling the driver to make runtime changes based + * on firmware version used. + * + * For example, + * if (IL_UCODE_API(il->ucode_ver) >= 2) { + * Driver interacts with Firmware API version >= 2. + * } else { + * Driver interacts with Firmware API version 1. + * } + * + * The ideal usage of this infrastructure is to treat a new ucode API + * release as a new hardware revision. That is, through utilizing the + * il_hcmd_utils_ops etc. we accommodate different command structures + * and flows between hardware versions as well as their API + * versions. + * + */ +struct il_cfg { + /* params specific to an individual device within a device family */ + const char *name; + const char *fw_name_pre; + const unsigned int ucode_api_max; + const unsigned int ucode_api_min; + u8 valid_tx_ant; + u8 valid_rx_ant; + unsigned int sku; + u16 eeprom_ver; + u16 eeprom_calib_ver; + const struct il_ops *ops; + /* module based parameters which can be set from modprobe cmd */ + const struct il_mod_params *mod_params; + /* params not likely to change within a device family */ + struct il_base_params *base_params; + /* params likely to change within a device family */ + u8 scan_rx_antennas[IEEE80211_NUM_BANDS]; + enum il_led_mode led_mode; +}; + +/*************************** + * L i b * + ***************************/ + +struct ieee80211_hw *il_alloc_all(struct il_cfg *cfg); +int il_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u16 queue, const struct ieee80211_tx_queue_params *params); +int il_mac_tx_last_beacon(struct ieee80211_hw *hw); + +void il_set_rxon_hwcrypto(struct il_priv *il, struct il_rxon_context *ctx, + int hw_decrypt); +int il_check_rxon_cmd(struct il_priv *il, struct il_rxon_context *ctx); +int il_full_rxon_required(struct il_priv *il, struct il_rxon_context *ctx); +int il_set_rxon_channel(struct il_priv *il, struct ieee80211_channel *ch, + struct il_rxon_context *ctx); +void il_set_flags_for_band(struct il_priv *il, struct il_rxon_context *ctx, + enum ieee80211_band band, struct ieee80211_vif *vif); +u8 il_get_single_channel_number(struct il_priv *il, enum ieee80211_band band); +void il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf); +bool il_is_ht40_tx_allowed(struct il_priv *il, struct il_rxon_context *ctx, + struct ieee80211_sta_ht_cap *ht_cap); +void il_connection_init_rx_config(struct il_priv *il, + struct il_rxon_context *ctx); +void il_set_rate(struct il_priv *il); +int il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr, + u32 decrypt_res, struct ieee80211_rx_status *stats); +void il_irq_handle_error(struct il_priv *il); +int il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif); +void il_mac_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif); +int il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + enum nl80211_iftype newtype, bool newp2p); +int il_alloc_txq_mem(struct il_priv *il); +void il_txq_mem(struct il_priv *il); + +#ifdef CONFIG_IWLEGACY_DEBUGFS +int il_alloc_traffic_mem(struct il_priv *il); +void il_free_traffic_mem(struct il_priv *il); +void il_reset_traffic_log(struct il_priv *il); +void il_dbg_log_tx_data_frame(struct il_priv *il, u16 length, + struct ieee80211_hdr *header); +void il_dbg_log_rx_data_frame(struct il_priv *il, u16 length, + struct ieee80211_hdr *header); +const char *il_get_mgmt_string(int cmd); +const char *il_get_ctrl_string(int cmd); +void il_clear_traffic_stats(struct il_priv *il); +void il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len); +#else +static inline int +il_alloc_traffic_mem(struct il_priv *il) +{ + return 0; +} + +static inline void +il_free_traffic_mem(struct il_priv *il) +{ +} + +static inline void +il_reset_traffic_log(struct il_priv *il) +{ +} + +static inline void +il_dbg_log_tx_data_frame(struct il_priv *il, u16 length, + struct ieee80211_hdr *header) +{ +} + +static inline void +il_dbg_log_rx_data_frame(struct il_priv *il, u16 length, + struct ieee80211_hdr *header) +{ +} + +static inline void +il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len) +{ +} +#endif +/***************************************************** + * RX handlers. + * **************************************************/ +void il_hdl_pm_sleep(struct il_priv *il, struct il_rx_buf *rxb); +void il_hdl_pm_debug_stats(struct il_priv *il, struct il_rx_buf *rxb); +void il_hdl_error(struct il_priv *il, struct il_rx_buf *rxb); + +/***************************************************** +* RX +******************************************************/ +void il_cmd_queue_unmap(struct il_priv *il); +void il_cmd_queue_free(struct il_priv *il); +int il_rx_queue_alloc(struct il_priv *il); +void il_rx_queue_update_write_ptr(struct il_priv *il, struct il_rx_queue *q); +int il_rx_queue_space(const struct il_rx_queue *q); +void il_tx_cmd_complete(struct il_priv *il, struct il_rx_buf *rxb); +/* Handlers */ +void il_hdl_spectrum_measurement(struct il_priv *il, struct il_rx_buf *rxb); +void il_recover_from_stats(struct il_priv *il, struct il_rx_pkt *pkt); +void il_chswitch_done(struct il_priv *il, bool is_success); +void il_hdl_csa(struct il_priv *il, struct il_rx_buf *rxb); + +/* TX helpers */ + +/***************************************************** +* TX +******************************************************/ +void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq); +int il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num, + u32 txq_id); +void il_tx_queue_reset(struct il_priv *il, struct il_tx_queue *txq, + int slots_num, u32 txq_id); +void il_tx_queue_unmap(struct il_priv *il, int txq_id); +void il_tx_queue_free(struct il_priv *il, int txq_id); +void il_setup_watchdog(struct il_priv *il); +/***************************************************** + * TX power + ****************************************************/ +int il_set_tx_power(struct il_priv *il, s8 tx_power, bool force); + +/******************************************************************************* + * Rate + ******************************************************************************/ + +u8 il_get_lowest_plcp(struct il_priv *il, struct il_rxon_context *ctx); + +/******************************************************************************* + * Scanning + ******************************************************************************/ +void il_init_scan_params(struct il_priv *il); +int il_scan_cancel(struct il_priv *il); +int il_scan_cancel_timeout(struct il_priv *il, unsigned long ms); +void il_force_scan_end(struct il_priv *il); +int il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct cfg80211_scan_request *req); +void il_internal_short_hw_scan(struct il_priv *il); +int il_force_reset(struct il_priv *il, bool external); +u16 il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame, + const u8 *ta, const u8 *ie, int ie_len, int left); +void il_setup_rx_scan_handlers(struct il_priv *il); +u16 il_get_active_dwell_time(struct il_priv *il, enum ieee80211_band band, + u8 n_probes); +u16 il_get_passive_dwell_time(struct il_priv *il, enum ieee80211_band band, + struct ieee80211_vif *vif); +void il_setup_scan_deferred_work(struct il_priv *il); +void il_cancel_scan_deferred_work(struct il_priv *il); + +/* For faster active scanning, scan will move to the next channel if fewer than + * PLCP_QUIET_THRESH packets are heard on this channel within + * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell + * time if it's a quiet channel (nothing responded to our probe, and there's + * no other traffic). + * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ +#define IL_ACTIVE_QUIET_TIME cpu_to_le16(10) /* msec */ +#define IL_PLCP_QUIET_THRESH cpu_to_le16(1) /* packets */ + +#define IL_SCAN_CHECK_WATCHDOG (HZ * 7) + +/***************************************************** + * S e n d i n g H o s t C o m m a n d s * + *****************************************************/ + +const char *il_get_cmd_string(u8 cmd); +int __must_check il_send_cmd_sync(struct il_priv *il, struct il_host_cmd *cmd); +int il_send_cmd(struct il_priv *il, struct il_host_cmd *cmd); +int __must_check il_send_cmd_pdu(struct il_priv *il, u8 id, u16 len, + const void *data); +int il_send_cmd_pdu_async(struct il_priv *il, u8 id, u16 len, const void *data, + void (*callback) (struct il_priv *il, + struct il_device_cmd *cmd, + struct il_rx_pkt *pkt)); + +int il_enqueue_hcmd(struct il_priv *il, struct il_host_cmd *cmd); + +/***************************************************** + * PCI * + *****************************************************/ + +static inline u16 +il_pcie_link_ctl(struct il_priv *il) +{ + int pos; + u16 pci_lnk_ctl; + pos = pci_pcie_cap(il->pci_dev); + pci_read_config_word(il->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl); + return pci_lnk_ctl; +} + +void il_bg_watchdog(unsigned long data); +u32 il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval); +__le32 il_add_beacon_time(struct il_priv *il, u32 base, u32 addon, + u32 beacon_interval); + +#ifdef CONFIG_PM +int il_pci_suspend(struct device *device); +int il_pci_resume(struct device *device); +extern const struct dev_pm_ops il_pm_ops; + +#define IL_LEGACY_PM_OPS (&il_pm_ops) + +#else /* !CONFIG_PM */ + +#define IL_LEGACY_PM_OPS NULL + +#endif /* !CONFIG_PM */ + +/***************************************************** +* Error Handling Debugging +******************************************************/ +void il4965_dump_nic_error_log(struct il_priv *il); +#ifdef CONFIG_IWLEGACY_DEBUG +void il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx); +#else +static inline void +il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx) +{ +} +#endif + +void il_clear_isr_stats(struct il_priv *il); + +/***************************************************** +* GEOS +******************************************************/ +int il_init_geos(struct il_priv *il); +void il_free_geos(struct il_priv *il); + +/*************** DRIVER STATUS FUNCTIONS *****/ + +#define S_HCMD_ACTIVE 0 /* host command in progress */ +/* 1 is unused (used to be S_HCMD_SYNC_ACTIVE) */ +#define S_INT_ENABLED 2 +#define S_RF_KILL_HW 3 +#define S_CT_KILL 4 +#define S_INIT 5 +#define S_ALIVE 6 +#define S_READY 7 +#define S_TEMPERATURE 8 +#define S_GEO_CONFIGURED 9 +#define S_EXIT_PENDING 10 +#define S_STATS 12 +#define S_SCANNING 13 +#define S_SCAN_ABORTING 14 +#define S_SCAN_HW 15 +#define S_POWER_PMI 16 +#define S_FW_ERROR 17 +#define S_CHANNEL_SWITCH_PENDING 18 + +static inline int +il_is_ready(struct il_priv *il) +{ + /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are + * set but EXIT_PENDING is not */ + return test_bit(S_READY, &il->status) && + test_bit(S_GEO_CONFIGURED, &il->status) && + !test_bit(S_EXIT_PENDING, &il->status); +} + +static inline int +il_is_alive(struct il_priv *il) +{ + return test_bit(S_ALIVE, &il->status); +} + +static inline int +il_is_init(struct il_priv *il) +{ + return test_bit(S_INIT, &il->status); +} + +static inline int +il_is_rfkill_hw(struct il_priv *il) +{ + return test_bit(S_RF_KILL_HW, &il->status); +} + +static inline int +il_is_rfkill(struct il_priv *il) +{ + return il_is_rfkill_hw(il); +} + +static inline int +il_is_ctkill(struct il_priv *il) +{ + return test_bit(S_CT_KILL, &il->status); +} + +static inline int +il_is_ready_rf(struct il_priv *il) +{ + + if (il_is_rfkill(il)) + return 0; + + return il_is_ready(il); +} + +extern void il_send_bt_config(struct il_priv *il); +extern int il_send_stats_request(struct il_priv *il, u8 flags, bool clear); +void il_apm_stop(struct il_priv *il); +int il_apm_init(struct il_priv *il); + +int il_send_rxon_timing(struct il_priv *il, struct il_rxon_context *ctx); +static inline int +il_send_rxon_assoc(struct il_priv *il, struct il_rxon_context *ctx) +{ + return il->cfg->ops->hcmd->rxon_assoc(il, ctx); +} + +static inline int +il_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx) +{ + return il->cfg->ops->hcmd->commit_rxon(il, ctx); +} + +static inline const struct ieee80211_supported_band * +il_get_hw_mode(struct il_priv *il, enum ieee80211_band band) +{ + return il->hw->wiphy->bands[band]; +} + +/* mac80211 handlers */ +int il_mac_config(struct ieee80211_hw *hw, u32 changed); +void il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif); +void il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, u32 changes); +void il_tx_cmd_protection(struct il_priv *il, struct ieee80211_tx_info *info, + __le16 fc, __le32 *tx_flags); + +irqreturn_t il_isr(int irq, void *data); + +#include <linux/io.h> + +static inline void +_il_write8(struct il_priv *il, u32 ofs, u8 val) +{ + iowrite8(val, il->hw_base + ofs); +} +#define il_write8(il, ofs, val) _il_write8(il, ofs, val) + +static inline void +_il_wr(struct il_priv *il, u32 ofs, u32 val) +{ + iowrite32(val, il->hw_base + ofs); +} + +static inline u32 +_il_rd(struct il_priv *il, u32 ofs) +{ + return ioread32(il->hw_base + ofs); +} + +#define IL_POLL_INTERVAL 10 /* microseconds */ +static inline int +_il_poll_bit(struct il_priv *il, u32 addr, u32 bits, u32 mask, int timeout) +{ + int t = 0; + + do { + if ((_il_rd(il, addr) & mask) == (bits & mask)) + return t; + udelay(IL_POLL_INTERVAL); + t += IL_POLL_INTERVAL; + } while (t < timeout); + + return -ETIMEDOUT; +} + +static inline void +_il_set_bit(struct il_priv *il, u32 reg, u32 mask) +{ + _il_wr(il, reg, _il_rd(il, reg) | mask); +} + +static inline void +il_set_bit(struct il_priv *p, u32 r, u32 m) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&p->reg_lock, reg_flags); + _il_set_bit(p, r, m); + spin_unlock_irqrestore(&p->reg_lock, reg_flags); +} + +static inline void +_il_clear_bit(struct il_priv *il, u32 reg, u32 mask) +{ + _il_wr(il, reg, _il_rd(il, reg) & ~mask); +} + +static inline void +il_clear_bit(struct il_priv *p, u32 r, u32 m) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&p->reg_lock, reg_flags); + _il_clear_bit(p, r, m); + spin_unlock_irqrestore(&p->reg_lock, reg_flags); +} + +static inline int +_il_grab_nic_access(struct il_priv *il) +{ + int ret; + u32 val; + + /* this bit wakes up the NIC */ + _il_set_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + + /* + * These bits say the device is running, and should keep running for + * at least a short while (at least as long as MAC_ACCESS_REQ stays 1), + * but they do not indicate that embedded SRAM is restored yet; + * 3945 and 4965 have volatile SRAM, and must save/restore contents + * to/from host DRAM when sleeping/waking for power-saving. + * Each direction takes approximately 1/4 millisecond; with this + * overhead, it's a good idea to grab and hold MAC_ACCESS_REQUEST if a + * series of register accesses are expected (e.g. reading Event Log), + * to keep device from sleeping. + * + * CSR_UCODE_DRV_GP1 register bit MAC_SLEEP == 0 indicates that + * SRAM is okay/restored. We don't check that here because this call + * is just for hardware register access; but GP1 MAC_SLEEP check is a + * good idea before accessing 3945/4965 SRAM (e.g. reading Event Log). + * + */ + ret = + _il_poll_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN, + (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | + CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000); + if (ret < 0) { + val = _il_rd(il, CSR_GP_CNTRL); + IL_ERR("MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val); + _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_FORCE_NMI); + return -EIO; + } + + return 0; +} + +static inline void +_il_release_nic_access(struct il_priv *il) +{ + _il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); +} + +static inline u32 +il_rd(struct il_priv *il, u32 reg) +{ + u32 value; + unsigned long reg_flags; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + _il_grab_nic_access(il); + value = _il_rd(il, reg); + _il_release_nic_access(il); + spin_unlock_irqrestore(&il->reg_lock, reg_flags); + return value; + +} + +static inline void +il_wr(struct il_priv *il, u32 reg, u32 value) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + if (!_il_grab_nic_access(il)) { + _il_wr(il, reg, value); + _il_release_nic_access(il); + } + spin_unlock_irqrestore(&il->reg_lock, reg_flags); +} + +static inline void +il_write_reg_buf(struct il_priv *il, u32 reg, u32 len, u32 * values) +{ + u32 count = sizeof(u32); + + if (il != NULL && values != NULL) { + for (; 0 < len; len -= count, reg += count, values++) + il_wr(il, reg, *values); + } +} + +static inline int +il_poll_bit(struct il_priv *il, u32 addr, u32 mask, int timeout) +{ + int t = 0; + + do { + if ((il_rd(il, addr) & mask) == mask) + return t; + udelay(IL_POLL_INTERVAL); + t += IL_POLL_INTERVAL; + } while (t < timeout); + + return -ETIMEDOUT; +} + +static inline u32 +_il_rd_prph(struct il_priv *il, u32 reg) +{ + _il_wr(il, HBUS_TARG_PRPH_RADDR, reg | (3 << 24)); + rmb(); + return _il_rd(il, HBUS_TARG_PRPH_RDAT); +} + +static inline u32 +il_rd_prph(struct il_priv *il, u32 reg) +{ + unsigned long reg_flags; + u32 val; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + _il_grab_nic_access(il); + val = _il_rd_prph(il, reg); + _il_release_nic_access(il); + spin_unlock_irqrestore(&il->reg_lock, reg_flags); + return val; +} + +static inline void +_il_wr_prph(struct il_priv *il, u32 addr, u32 val) +{ + _il_wr(il, HBUS_TARG_PRPH_WADDR, ((addr & 0x0000FFFF) | (3 << 24))); + wmb(); + _il_wr(il, HBUS_TARG_PRPH_WDAT, val); +} + +static inline void +il_wr_prph(struct il_priv *il, u32 addr, u32 val) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + if (!_il_grab_nic_access(il)) { + _il_wr_prph(il, addr, val); + _il_release_nic_access(il); + } + spin_unlock_irqrestore(&il->reg_lock, reg_flags); +} + +#define _il_set_bits_prph(il, reg, mask) \ +_il_wr_prph(il, reg, (_il_rd_prph(il, reg) | mask)) + +static inline void +il_set_bits_prph(struct il_priv *il, u32 reg, u32 mask) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + _il_grab_nic_access(il); + _il_set_bits_prph(il, reg, mask); + _il_release_nic_access(il); + spin_unlock_irqrestore(&il->reg_lock, reg_flags); +} + +#define _il_set_bits_mask_prph(il, reg, bits, mask) \ +_il_wr_prph(il, reg, \ + ((_il_rd_prph(il, reg) & mask) | bits)) + +static inline void +il_set_bits_mask_prph(struct il_priv *il, u32 reg, u32 bits, u32 mask) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + _il_grab_nic_access(il); + _il_set_bits_mask_prph(il, reg, bits, mask); + _il_release_nic_access(il); + spin_unlock_irqrestore(&il->reg_lock, reg_flags); +} + +static inline void +il_clear_bits_prph(struct il_priv *il, u32 reg, u32 mask) +{ + unsigned long reg_flags; + u32 val; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + _il_grab_nic_access(il); + val = _il_rd_prph(il, reg); + _il_wr_prph(il, reg, (val & ~mask)); + _il_release_nic_access(il); + spin_unlock_irqrestore(&il->reg_lock, reg_flags); +} + +static inline u32 +il_read_targ_mem(struct il_priv *il, u32 addr) +{ + unsigned long reg_flags; + u32 value; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + _il_grab_nic_access(il); + + _il_wr(il, HBUS_TARG_MEM_RADDR, addr); + rmb(); + value = _il_rd(il, HBUS_TARG_MEM_RDAT); + + _il_release_nic_access(il); + spin_unlock_irqrestore(&il->reg_lock, reg_flags); + return value; +} + +static inline void +il_write_targ_mem(struct il_priv *il, u32 addr, u32 val) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + if (!_il_grab_nic_access(il)) { + _il_wr(il, HBUS_TARG_MEM_WADDR, addr); + wmb(); + _il_wr(il, HBUS_TARG_MEM_WDAT, val); + _il_release_nic_access(il); + } + spin_unlock_irqrestore(&il->reg_lock, reg_flags); +} + +static inline void +il_write_targ_mem_buf(struct il_priv *il, u32 addr, u32 len, u32 * values) +{ + unsigned long reg_flags; + + spin_lock_irqsave(&il->reg_lock, reg_flags); + if (!_il_grab_nic_access(il)) { + _il_wr(il, HBUS_TARG_MEM_WADDR, addr); + wmb(); + for (; 0 < len; len -= sizeof(u32), values++) + _il_wr(il, HBUS_TARG_MEM_WDAT, *values); + + _il_release_nic_access(il); + } + spin_unlock_irqrestore(&il->reg_lock, reg_flags); +} + +#define HW_KEY_DYNAMIC 0 +#define HW_KEY_DEFAULT 1 + +#define IL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ +#define IL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ +#define IL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of + being activated */ +#define IL_STA_LOCAL BIT(3) /* station state not directed by mac80211; + (this is for the IBSS BSSID stations) */ +#define IL_STA_BCAST BIT(4) /* this station is the special bcast station */ + +void il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx); +void il_clear_ucode_stations(struct il_priv *il, struct il_rxon_context *ctx); +void il_dealloc_bcast_stations(struct il_priv *il); +int il_get_free_ucode_key_idx(struct il_priv *il); +int il_send_add_sta(struct il_priv *il, struct il_addsta_cmd *sta, u8 flags); +int il_add_station_common(struct il_priv *il, struct il_rxon_context *ctx, + const u8 *addr, bool is_ap, + struct ieee80211_sta *sta, u8 *sta_id_r); +int il_remove_station(struct il_priv *il, const u8 sta_id, const u8 * addr); +int il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta); + +u8 il_prep_station(struct il_priv *il, struct il_rxon_context *ctx, + const u8 *addr, bool is_ap, struct ieee80211_sta *sta); + +int il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx, + struct il_link_quality_cmd *lq, u8 flags, bool init); + +/** + * il_clear_driver_stations - clear knowledge of all stations from driver + * @il: iwl il struct + * + * This is called during il_down() to make sure that in the case + * we're coming there from a hardware restart mac80211 will be + * able to reconfigure stations -- if we're getting there in the + * normal down flow then the stations will already be cleared. + */ +static inline void +il_clear_driver_stations(struct il_priv *il) +{ + unsigned long flags; + struct il_rxon_context *ctx = &il->ctx; + + spin_lock_irqsave(&il->sta_lock, flags); + memset(il->stations, 0, sizeof(il->stations)); + il->num_stations = 0; + + il->ucode_key_table = 0; + + /* + * Remove all key information that is not stored as part + * of station information since mac80211 may not have had + * a chance to remove all the keys. When device is + * reconfigured by mac80211 after an error all keys will + * be reconfigured. + */ + memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); + ctx->key_mapping_keys = 0; + + spin_unlock_irqrestore(&il->sta_lock, flags); +} + +static inline int +il_sta_id(struct ieee80211_sta *sta) +{ + if (WARN_ON(!sta)) + return IL_INVALID_STATION; + + return ((struct il_station_priv_common *)sta->drv_priv)->sta_id; +} + +/** + * il_sta_id_or_broadcast - return sta_id or broadcast sta + * @il: iwl il + * @context: the current context + * @sta: mac80211 station + * + * In certain circumstances mac80211 passes a station pointer + * that may be %NULL, for example during TX or key setup. In + * that case, we need to use the broadcast station, so this + * inline wraps that pattern. + */ +static inline int +il_sta_id_or_broadcast(struct il_priv *il, struct il_rxon_context *context, + struct ieee80211_sta *sta) +{ + int sta_id; + + if (!sta) + return context->bcast_sta_id; + + sta_id = il_sta_id(sta); + + /* + * mac80211 should not be passing a partially + * initialised station! + */ + WARN_ON(sta_id == IL_INVALID_STATION); + + return sta_id; +} + +/** + * il_queue_inc_wrap - increment queue idx, wrap back to beginning + * @idx -- current idx + * @n_bd -- total number of entries in queue (must be power of 2) + */ +static inline int +il_queue_inc_wrap(int idx, int n_bd) +{ + return ++idx & (n_bd - 1); +} + +/** + * il_queue_dec_wrap - decrement queue idx, wrap back to end + * @idx -- current idx + * @n_bd -- total number of entries in queue (must be power of 2) + */ +static inline int +il_queue_dec_wrap(int idx, int n_bd) +{ + return --idx & (n_bd - 1); +} + +/* TODO: Move fw_desc functions to iwl-pci.ko */ +static inline void +il_free_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc) +{ + if (desc->v_addr) + dma_free_coherent(&pci_dev->dev, desc->len, desc->v_addr, + desc->p_addr); + desc->v_addr = NULL; + desc->len = 0; +} + +static inline int +il_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc) +{ + if (!desc->len) { + desc->v_addr = NULL; + return -EINVAL; + } + + desc->v_addr = + dma_alloc_coherent(&pci_dev->dev, desc->len, &desc->p_addr, + GFP_KERNEL); + return (desc->v_addr != NULL) ? 0 : -ENOMEM; +} + +/* + * we have 8 bits used like this: + * + * 7 6 5 4 3 2 1 0 + * | | | | | | | | + * | | | | | | +-+-------- AC queue (0-3) + * | | | | | | + * | +-+-+-+-+------------ HW queue ID + * | + * +---------------------- unused + */ +static inline void +il_set_swq_id(struct il_tx_queue *txq, u8 ac, u8 hwq) +{ + BUG_ON(ac > 3); /* only have 2 bits */ + BUG_ON(hwq > 31); /* only use 5 bits */ + + txq->swq_id = (hwq << 2) | ac; +} + +static inline void +il_wake_queue(struct il_priv *il, struct il_tx_queue *txq) +{ + u8 queue = txq->swq_id; + u8 ac = queue & 3; + u8 hwq = (queue >> 2) & 0x1f; + + if (test_and_clear_bit(hwq, il->queue_stopped)) + if (atomic_dec_return(&il->queue_stop_count[ac]) <= 0) + ieee80211_wake_queue(il->hw, ac); +} + +static inline void +il_stop_queue(struct il_priv *il, struct il_tx_queue *txq) +{ + u8 queue = txq->swq_id; + u8 ac = queue & 3; + u8 hwq = (queue >> 2) & 0x1f; + + if (!test_and_set_bit(hwq, il->queue_stopped)) + if (atomic_inc_return(&il->queue_stop_count[ac]) > 0) + ieee80211_stop_queue(il->hw, ac); +} + +#ifdef ieee80211_stop_queue +#undef ieee80211_stop_queue +#endif + +#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue + +#ifdef ieee80211_wake_queue +#undef ieee80211_wake_queue +#endif + +#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue + +static inline void +il_disable_interrupts(struct il_priv *il) +{ + clear_bit(S_INT_ENABLED, &il->status); + + /* disable interrupts from uCode/NIC to host */ + _il_wr(il, CSR_INT_MASK, 0x00000000); + + /* acknowledge/clear/reset any interrupts still pending + * from uCode or flow handler (Rx/Tx DMA) */ + _il_wr(il, CSR_INT, 0xffffffff); + _il_wr(il, CSR_FH_INT_STATUS, 0xffffffff); +} + +static inline void +il_enable_rfkill_int(struct il_priv *il) +{ + _il_wr(il, CSR_INT_MASK, CSR_INT_BIT_RF_KILL); +} + +static inline void +il_enable_interrupts(struct il_priv *il) +{ + set_bit(S_INT_ENABLED, &il->status); + _il_wr(il, CSR_INT_MASK, il->inta_mask); +} + +/** + * il_beacon_time_mask_low - mask of lower 32 bit of beacon time + * @il -- pointer to il_priv data structure + * @tsf_bits -- number of bits need to shift for masking) + */ +static inline u32 +il_beacon_time_mask_low(struct il_priv *il, u16 tsf_bits) +{ + return (1 << tsf_bits) - 1; +} + +/** + * il_beacon_time_mask_high - mask of higher 32 bit of beacon time + * @il -- pointer to il_priv data structure + * @tsf_bits -- number of bits need to shift for masking) + */ +static inline u32 +il_beacon_time_mask_high(struct il_priv *il, u16 tsf_bits) +{ + return ((1 << (32 - tsf_bits)) - 1) << tsf_bits; +} + +/** + * struct il_rb_status - reseve buffer status host memory mapped FH registers + * + * @closed_rb_num [0:11] - Indicates the idx of the RB which was closed + * @closed_fr_num [0:11] - Indicates the idx of the RX Frame which was closed + * @finished_rb_num [0:11] - Indicates the idx of the current RB + * in which the last frame was written to + * @finished_fr_num [0:11] - Indicates the idx of the RX Frame + * which was transferred + */ +struct il_rb_status { + __le16 closed_rb_num; + __le16 closed_fr_num; + __le16 finished_rb_num; + __le16 finished_fr_nam; + __le32 __unused; /* 3945 only */ +} __packed; + +#define TFD_QUEUE_SIZE_MAX (256) +#define TFD_QUEUE_SIZE_BC_DUP (64) +#define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP) +#define IL_TX_DMA_MASK DMA_BIT_MASK(36) +#define IL_NUM_OF_TBS 20 + +static inline u8 +il_get_dma_hi_addr(dma_addr_t addr) +{ + return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF; +} + +/** + * struct il_tfd_tb transmit buffer descriptor within transmit frame descriptor + * + * This structure contains dma address and length of transmission address + * + * @lo: low [31:0] portion of the dma address of TX buffer every even is + * unaligned on 16 bit boundary + * @hi_n_len: 0-3 [35:32] portion of dma + * 4-15 length of the tx buffer + */ +struct il_tfd_tb { + __le32 lo; + __le16 hi_n_len; +} __packed; + +/** + * struct il_tfd + * + * Transmit Frame Descriptor (TFD) + * + * @ __reserved1[3] reserved + * @ num_tbs 0-4 number of active tbs + * 5 reserved + * 6-7 padding (not used) + * @ tbs[20] transmit frame buffer descriptors + * @ __pad padding + * + * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM. + * Both driver and device share these circular buffers, each of which must be + * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes + * + * Driver must indicate the physical address of the base of each + * circular buffer via the FH49_MEM_CBBC_QUEUE registers. + * + * Each TFD contains pointer/size information for up to 20 data buffers + * in host DRAM. These buffers collectively contain the (one) frame described + * by the TFD. Each buffer must be a single contiguous block of memory within + * itself, but buffers may be scattered in host DRAM. Each buffer has max size + * of (4K - 4). The concatenates all of a TFD's buffers into a single + * Tx frame, up to 8 KBytes in size. + * + * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx. + */ +struct il_tfd { + u8 __reserved1[3]; + u8 num_tbs; + struct il_tfd_tb tbs[IL_NUM_OF_TBS]; + __le32 __pad; +} __packed; +/* PCI registers */ +#define PCI_CFG_RETRY_TIMEOUT 0x041 + +/* PCI register values */ +#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01 +#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02 + +struct il_rate_info { + u8 plcp; /* uCode API: RATE_6M_PLCP, etc. */ + u8 plcp_siso; /* uCode API: RATE_SISO_6M_PLCP, etc. */ + u8 plcp_mimo2; /* uCode API: RATE_MIMO2_6M_PLCP, etc. */ + u8 ieee; /* MAC header: RATE_6M_IEEE, etc. */ + u8 prev_ieee; /* previous rate in IEEE speeds */ + u8 next_ieee; /* next rate in IEEE speeds */ + u8 prev_rs; /* previous rate used in rs algo */ + u8 next_rs; /* next rate used in rs algo */ + u8 prev_rs_tgg; /* previous rate used in TGG rs algo */ + u8 next_rs_tgg; /* next rate used in TGG rs algo */ +}; + +struct il3945_rate_info { + u8 plcp; /* uCode API: RATE_6M_PLCP, etc. */ + u8 ieee; /* MAC header: RATE_6M_IEEE, etc. */ + u8 prev_ieee; /* previous rate in IEEE speeds */ + u8 next_ieee; /* next rate in IEEE speeds */ + u8 prev_rs; /* previous rate used in rs algo */ + u8 next_rs; /* next rate used in rs algo */ + u8 prev_rs_tgg; /* previous rate used in TGG rs algo */ + u8 next_rs_tgg; /* next rate used in TGG rs algo */ + u8 table_rs_idx; /* idx in rate scale table cmd */ + u8 prev_table_rs; /* prev in rate table cmd */ +}; + +/* + * These serve as idxes into + * struct il_rate_info il_rates[RATE_COUNT]; + */ +enum { + RATE_1M_IDX = 0, + RATE_2M_IDX, + RATE_5M_IDX, + RATE_11M_IDX, + RATE_6M_IDX, + RATE_9M_IDX, + RATE_12M_IDX, + RATE_18M_IDX, + RATE_24M_IDX, + RATE_36M_IDX, + RATE_48M_IDX, + RATE_54M_IDX, + RATE_60M_IDX, + RATE_COUNT, + RATE_COUNT_LEGACY = RATE_COUNT - 1, /* Excluding 60M */ + RATE_COUNT_3945 = RATE_COUNT - 1, + RATE_INVM_IDX = RATE_COUNT, + RATE_INVALID = RATE_COUNT, +}; + +enum { + RATE_6M_IDX_TBL = 0, + RATE_9M_IDX_TBL, + RATE_12M_IDX_TBL, + RATE_18M_IDX_TBL, + RATE_24M_IDX_TBL, + RATE_36M_IDX_TBL, + RATE_48M_IDX_TBL, + RATE_54M_IDX_TBL, + RATE_1M_IDX_TBL, + RATE_2M_IDX_TBL, + RATE_5M_IDX_TBL, + RATE_11M_IDX_TBL, + RATE_INVM_IDX_TBL = RATE_INVM_IDX - 1, +}; + +enum { + IL_FIRST_OFDM_RATE = RATE_6M_IDX, + IL39_LAST_OFDM_RATE = RATE_54M_IDX, + IL_LAST_OFDM_RATE = RATE_60M_IDX, + IL_FIRST_CCK_RATE = RATE_1M_IDX, + IL_LAST_CCK_RATE = RATE_11M_IDX, +}; + +/* #define vs. enum to keep from defaulting to 'large integer' */ +#define RATE_6M_MASK (1 << RATE_6M_IDX) +#define RATE_9M_MASK (1 << RATE_9M_IDX) +#define RATE_12M_MASK (1 << RATE_12M_IDX) +#define RATE_18M_MASK (1 << RATE_18M_IDX) +#define RATE_24M_MASK (1 << RATE_24M_IDX) +#define RATE_36M_MASK (1 << RATE_36M_IDX) +#define RATE_48M_MASK (1 << RATE_48M_IDX) +#define RATE_54M_MASK (1 << RATE_54M_IDX) +#define RATE_60M_MASK (1 << RATE_60M_IDX) +#define RATE_1M_MASK (1 << RATE_1M_IDX) +#define RATE_2M_MASK (1 << RATE_2M_IDX) +#define RATE_5M_MASK (1 << RATE_5M_IDX) +#define RATE_11M_MASK (1 << RATE_11M_IDX) + +/* uCode API values for legacy bit rates, both OFDM and CCK */ +enum { + RATE_6M_PLCP = 13, + RATE_9M_PLCP = 15, + RATE_12M_PLCP = 5, + RATE_18M_PLCP = 7, + RATE_24M_PLCP = 9, + RATE_36M_PLCP = 11, + RATE_48M_PLCP = 1, + RATE_54M_PLCP = 3, + RATE_60M_PLCP = 3, /*FIXME:RS:should be removed */ + RATE_1M_PLCP = 10, + RATE_2M_PLCP = 20, + RATE_5M_PLCP = 55, + RATE_11M_PLCP = 110, + /*FIXME:RS:add RATE_LEGACY_INVM_PLCP = 0, */ +}; + +/* uCode API values for OFDM high-throughput (HT) bit rates */ +enum { + RATE_SISO_6M_PLCP = 0, + RATE_SISO_12M_PLCP = 1, + RATE_SISO_18M_PLCP = 2, + RATE_SISO_24M_PLCP = 3, + RATE_SISO_36M_PLCP = 4, + RATE_SISO_48M_PLCP = 5, + RATE_SISO_54M_PLCP = 6, + RATE_SISO_60M_PLCP = 7, + RATE_MIMO2_6M_PLCP = 0x8, + RATE_MIMO2_12M_PLCP = 0x9, + RATE_MIMO2_18M_PLCP = 0xa, + RATE_MIMO2_24M_PLCP = 0xb, + RATE_MIMO2_36M_PLCP = 0xc, + RATE_MIMO2_48M_PLCP = 0xd, + RATE_MIMO2_54M_PLCP = 0xe, + RATE_MIMO2_60M_PLCP = 0xf, + RATE_SISO_INVM_PLCP, + RATE_MIMO2_INVM_PLCP = RATE_SISO_INVM_PLCP, +}; + +/* MAC header values for bit rates */ +enum { + RATE_6M_IEEE = 12, + RATE_9M_IEEE = 18, + RATE_12M_IEEE = 24, + RATE_18M_IEEE = 36, + RATE_24M_IEEE = 48, + RATE_36M_IEEE = 72, + RATE_48M_IEEE = 96, + RATE_54M_IEEE = 108, + RATE_60M_IEEE = 120, + RATE_1M_IEEE = 2, + RATE_2M_IEEE = 4, + RATE_5M_IEEE = 11, + RATE_11M_IEEE = 22, +}; + +#define IL_CCK_BASIC_RATES_MASK \ + (RATE_1M_MASK | \ + RATE_2M_MASK) + +#define IL_CCK_RATES_MASK \ + (IL_CCK_BASIC_RATES_MASK | \ + RATE_5M_MASK | \ + RATE_11M_MASK) + +#define IL_OFDM_BASIC_RATES_MASK \ + (RATE_6M_MASK | \ + RATE_12M_MASK | \ + RATE_24M_MASK) + +#define IL_OFDM_RATES_MASK \ + (IL_OFDM_BASIC_RATES_MASK | \ + RATE_9M_MASK | \ + RATE_18M_MASK | \ + RATE_36M_MASK | \ + RATE_48M_MASK | \ + RATE_54M_MASK) + +#define IL_BASIC_RATES_MASK \ + (IL_OFDM_BASIC_RATES_MASK | \ + IL_CCK_BASIC_RATES_MASK) + +#define RATES_MASK ((1 << RATE_COUNT) - 1) +#define RATES_MASK_3945 ((1 << RATE_COUNT_3945) - 1) + +#define IL_INVALID_VALUE -1 + +#define IL_MIN_RSSI_VAL -100 +#define IL_MAX_RSSI_VAL 0 + +/* These values specify how many Tx frame attempts before + * searching for a new modulation mode */ +#define IL_LEGACY_FAILURE_LIMIT 160 +#define IL_LEGACY_SUCCESS_LIMIT 480 +#define IL_LEGACY_TBL_COUNT 160 + +#define IL_NONE_LEGACY_FAILURE_LIMIT 400 +#define IL_NONE_LEGACY_SUCCESS_LIMIT 4500 +#define IL_NONE_LEGACY_TBL_COUNT 1500 + +/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */ +#define IL_RS_GOOD_RATIO 12800 /* 100% */ +#define RATE_SCALE_SWITCH 10880 /* 85% */ +#define RATE_HIGH_TH 10880 /* 85% */ +#define RATE_INCREASE_TH 6400 /* 50% */ +#define RATE_DECREASE_TH 1920 /* 15% */ + +/* possible actions when in legacy mode */ +#define IL_LEGACY_SWITCH_ANTENNA1 0 +#define IL_LEGACY_SWITCH_ANTENNA2 1 +#define IL_LEGACY_SWITCH_SISO 2 +#define IL_LEGACY_SWITCH_MIMO2_AB 3 +#define IL_LEGACY_SWITCH_MIMO2_AC 4 +#define IL_LEGACY_SWITCH_MIMO2_BC 5 + +/* possible actions when in siso mode */ +#define IL_SISO_SWITCH_ANTENNA1 0 +#define IL_SISO_SWITCH_ANTENNA2 1 +#define IL_SISO_SWITCH_MIMO2_AB 2 +#define IL_SISO_SWITCH_MIMO2_AC 3 +#define IL_SISO_SWITCH_MIMO2_BC 4 +#define IL_SISO_SWITCH_GI 5 + +/* possible actions when in mimo mode */ +#define IL_MIMO2_SWITCH_ANTENNA1 0 +#define IL_MIMO2_SWITCH_ANTENNA2 1 +#define IL_MIMO2_SWITCH_SISO_A 2 +#define IL_MIMO2_SWITCH_SISO_B 3 +#define IL_MIMO2_SWITCH_SISO_C 4 +#define IL_MIMO2_SWITCH_GI 5 + +#define IL_MAX_SEARCH IL_MIMO2_SWITCH_GI + +#define IL_ACTION_LIMIT 3 /* # possible actions */ + +#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */ + +/* load per tid defines for A-MPDU activation */ +#define IL_AGG_TPT_THREHOLD 0 +#define IL_AGG_LOAD_THRESHOLD 10 +#define IL_AGG_ALL_TID 0xff +#define TID_QUEUE_CELL_SPACING 50 /*mS */ +#define TID_QUEUE_MAX_SIZE 20 +#define TID_ROUND_VALUE 5 /* mS */ +#define TID_MAX_LOAD_COUNT 8 + +#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING) +#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y)) + +extern const struct il_rate_info il_rates[RATE_COUNT]; + +enum il_table_type { + LQ_NONE, + LQ_G, /* legacy types */ + LQ_A, + LQ_SISO, /* high-throughput types */ + LQ_MIMO2, + LQ_MAX, +}; + +#define is_legacy(tbl) ((tbl) == LQ_G || (tbl) == LQ_A) +#define is_siso(tbl) ((tbl) == LQ_SISO) +#define is_mimo2(tbl) ((tbl) == LQ_MIMO2) +#define is_mimo(tbl) (is_mimo2(tbl)) +#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl)) +#define is_a_band(tbl) ((tbl) == LQ_A) +#define is_g_and(tbl) ((tbl) == LQ_G) + +#define ANT_NONE 0x0 +#define ANT_A BIT(0) +#define ANT_B BIT(1) +#define ANT_AB (ANT_A | ANT_B) +#define ANT_C BIT(2) +#define ANT_AC (ANT_A | ANT_C) +#define ANT_BC (ANT_B | ANT_C) +#define ANT_ABC (ANT_AB | ANT_C) + +#define IL_MAX_MCS_DISPLAY_SIZE 12 + +struct il_rate_mcs_info { + char mbps[IL_MAX_MCS_DISPLAY_SIZE]; + char mcs[IL_MAX_MCS_DISPLAY_SIZE]; +}; + +/** + * struct il_rate_scale_data -- tx success history for one rate + */ +struct il_rate_scale_data { + u64 data; /* bitmap of successful frames */ + s32 success_counter; /* number of frames successful */ + s32 success_ratio; /* per-cent * 128 */ + s32 counter; /* number of frames attempted */ + s32 average_tpt; /* success ratio * expected throughput */ + unsigned long stamp; +}; + +/** + * struct il_scale_tbl_info -- tx params and success history for all rates + * + * There are two of these in struct il_lq_sta, + * one for "active", and one for "search". + */ +struct il_scale_tbl_info { + enum il_table_type lq_type; + u8 ant_type; + u8 is_SGI; /* 1 = short guard interval */ + u8 is_ht40; /* 1 = 40 MHz channel width */ + u8 is_dup; /* 1 = duplicated data streams */ + u8 action; /* change modulation; IL_[LEGACY/SISO/MIMO]_SWITCH_* */ + u8 max_search; /* maximun number of tables we can search */ + s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ + u32 current_rate; /* rate_n_flags, uCode API format */ + struct il_rate_scale_data win[RATE_COUNT]; /* rate histories */ +}; + +struct il_traffic_load { + unsigned long time_stamp; /* age of the oldest stats */ + u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time + * slice */ + u32 total; /* total num of packets during the + * last TID_MAX_TIME_DIFF */ + u8 queue_count; /* number of queues that has + * been used since the last cleanup */ + u8 head; /* start of the circular buffer */ +}; + +/** + * struct il_lq_sta -- driver's rate scaling ilate structure + * + * Pointer to this gets passed back and forth between driver and mac80211. + */ +struct il_lq_sta { + u8 active_tbl; /* idx of active table, range 0-1 */ + u8 enable_counter; /* indicates HT mode */ + u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */ + u8 search_better_tbl; /* 1: currently trying alternate mode */ + s32 last_tpt; + + /* The following determine when to search for a new mode */ + u32 table_count_limit; + u32 max_failure_limit; /* # failed frames before new search */ + u32 max_success_limit; /* # successful frames before new search */ + u32 table_count; + u32 total_failed; /* total failed frames, any/all rates */ + u32 total_success; /* total successful frames, any/all rates */ + u64 flush_timer; /* time staying in mode before new search */ + + u8 action_counter; /* # mode-switch actions tried */ + u8 is_green; + u8 is_dup; + enum ieee80211_band band; + + /* The following are bitmaps of rates; RATE_6M_MASK, etc. */ + u32 supp_rates; + u16 active_legacy_rate; + u16 active_siso_rate; + u16 active_mimo2_rate; + s8 max_rate_idx; /* Max rate set by user */ + u8 missed_rate_counter; + + struct il_link_quality_cmd lq; + struct il_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ + struct il_traffic_load load[TID_MAX_LOAD_COUNT]; + u8 tx_agg_tid_en; +#ifdef CONFIG_MAC80211_DEBUGFS + struct dentry *rs_sta_dbgfs_scale_table_file; + struct dentry *rs_sta_dbgfs_stats_table_file; + struct dentry *rs_sta_dbgfs_rate_scale_data_file; + struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file; + u32 dbg_fixed_rate; +#endif + struct il_priv *drv; + + /* used to be in sta_info */ + int last_txrate_idx; + /* last tx rate_n_flags */ + u32 last_rate_n_flags; + /* packets destined for this STA are aggregated */ + u8 is_agg; +}; + +/* + * il_station_priv: Driver's ilate station information + * + * When mac80211 creates a station it reserves some space (hw->sta_data_size) + * in the structure for use by driver. This structure is places in that + * space. + * + * The common struct MUST be first because it is shared between + * 3945 and 4965! + */ +struct il_station_priv { + struct il_station_priv_common common; + struct il_lq_sta lq_sta; + atomic_t pending_frames; + bool client; + bool asleep; +}; + +static inline u8 +il4965_num_of_ant(u8 m) +{ + return !!(m & ANT_A) + !!(m & ANT_B) + !!(m & ANT_C); +} + +static inline u8 +il4965_first_antenna(u8 mask) +{ + if (mask & ANT_A) + return ANT_A; + if (mask & ANT_B) + return ANT_B; + return ANT_C; +} + +/** + * il3945_rate_scale_init - Initialize the rate scale table based on assoc info + * + * The specific throughput table used is based on the type of network + * the associated with, including A, B, G, and G w/ TGG protection + */ +extern void il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id); + +/* Initialize station's rate scaling information after adding station */ +extern void il4965_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta, + u8 sta_id); +extern void il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta, + u8 sta_id); + +/** + * il_rate_control_register - Register the rate control algorithm callbacks + * + * Since the rate control algorithm is hardware specific, there is no need + * or reason to place it as a stand alone module. The driver can call + * il_rate_control_register in order to register the rate control callbacks + * with the mac80211 subsystem. This should be performed prior to calling + * ieee80211_register_hw + * + */ +extern int il4965_rate_control_register(void); +extern int il3945_rate_control_register(void); + +/** + * il_rate_control_unregister - Unregister the rate control callbacks + * + * This should be called after calling ieee80211_unregister_hw, but before + * the driver is unloaded. + */ +extern void il4965_rate_control_unregister(void); +extern void il3945_rate_control_unregister(void); + +extern int il_power_update_mode(struct il_priv *il, bool force); +extern void il_power_initialize(struct il_priv *il); + +extern u32 il_debug_level; + +#ifdef CONFIG_IWLEGACY_DEBUG +/* + * il_get_debug_level: Return active debug level for device + * + * Using sysfs it is possible to set per device debug level. This debug + * level will be used if set, otherwise the global debug level which can be + * set via module parameter is used. + */ +static inline u32 +il_get_debug_level(struct il_priv *il) +{ + if (il->debug_level) + return il->debug_level; + else + return il_debug_level; +} +#else +static inline u32 +il_get_debug_level(struct il_priv *il) +{ + return il_debug_level; +} +#endif + +#define il_print_hex_error(il, p, len) \ +do { \ + print_hex_dump(KERN_ERR, "iwl data: ", \ + DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ +} while (0) + +#ifdef CONFIG_IWLEGACY_DEBUG +#define IL_DBG(level, fmt, args...) \ +do { \ + if (il_get_debug_level(il) & level) \ + dev_printk(KERN_ERR, &il->hw->wiphy->dev, \ + "%c %s " fmt, in_interrupt() ? 'I' : 'U', \ + __func__ , ## args); \ +} while (0) + +#define il_print_hex_dump(il, level, p, len) \ +do { \ + if (il_get_debug_level(il) & level) \ + print_hex_dump(KERN_DEBUG, "iwl data: ", \ + DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ +} while (0) + +#else +#define IL_DBG(level, fmt, args...) +static inline void +il_print_hex_dump(struct il_priv *il, int level, const void *p, u32 len) +{ +} +#endif /* CONFIG_IWLEGACY_DEBUG */ + +#ifdef CONFIG_IWLEGACY_DEBUGFS +int il_dbgfs_register(struct il_priv *il, const char *name); +void il_dbgfs_unregister(struct il_priv *il); +#else +static inline int +il_dbgfs_register(struct il_priv *il, const char *name) +{ + return 0; +} + +static inline void +il_dbgfs_unregister(struct il_priv *il) +{ +} +#endif /* CONFIG_IWLEGACY_DEBUGFS */ + +/* + * To use the debug system: + * + * If you are defining a new debug classification, simply add it to the #define + * list here in the form of + * + * #define IL_DL_xxxx VALUE + * + * where xxxx should be the name of the classification (for example, WEP). + * + * You then need to either add a IL_xxxx_DEBUG() macro definition for your + * classification, or use IL_DBG(IL_DL_xxxx, ...) whenever you want + * to send output to that classification. + * + * The active debug levels can be accessed via files + * + * /sys/module/iwl4965/parameters/debug + * /sys/module/iwl3945/parameters/debug + * /sys/class/net/wlan0/device/debug_level + * + * when CONFIG_IWLEGACY_DEBUG=y. + */ + +/* 0x0000000F - 0x00000001 */ +#define IL_DL_INFO (1 << 0) +#define IL_DL_MAC80211 (1 << 1) +#define IL_DL_HCMD (1 << 2) +#define IL_DL_STATE (1 << 3) +/* 0x000000F0 - 0x00000010 */ +#define IL_DL_MACDUMP (1 << 4) +#define IL_DL_HCMD_DUMP (1 << 5) +#define IL_DL_EEPROM (1 << 6) +#define IL_DL_RADIO (1 << 7) +/* 0x00000F00 - 0x00000100 */ +#define IL_DL_POWER (1 << 8) +#define IL_DL_TEMP (1 << 9) +#define IL_DL_NOTIF (1 << 10) +#define IL_DL_SCAN (1 << 11) +/* 0x0000F000 - 0x00001000 */ +#define IL_DL_ASSOC (1 << 12) +#define IL_DL_DROP (1 << 13) +#define IL_DL_TXPOWER (1 << 14) +#define IL_DL_AP (1 << 15) +/* 0x000F0000 - 0x00010000 */ +#define IL_DL_FW (1 << 16) +#define IL_DL_RF_KILL (1 << 17) +#define IL_DL_FW_ERRORS (1 << 18) +#define IL_DL_LED (1 << 19) +/* 0x00F00000 - 0x00100000 */ +#define IL_DL_RATE (1 << 20) +#define IL_DL_CALIB (1 << 21) +#define IL_DL_WEP (1 << 22) +#define IL_DL_TX (1 << 23) +/* 0x0F000000 - 0x01000000 */ +#define IL_DL_RX (1 << 24) +#define IL_DL_ISR (1 << 25) +#define IL_DL_HT (1 << 26) +/* 0xF0000000 - 0x10000000 */ +#define IL_DL_11H (1 << 28) +#define IL_DL_STATS (1 << 29) +#define IL_DL_TX_REPLY (1 << 30) +#define IL_DL_QOS (1 << 31) + +#define D_INFO(f, a...) IL_DBG(IL_DL_INFO, f, ## a) +#define D_MAC80211(f, a...) IL_DBG(IL_DL_MAC80211, f, ## a) +#define D_MACDUMP(f, a...) IL_DBG(IL_DL_MACDUMP, f, ## a) +#define D_TEMP(f, a...) IL_DBG(IL_DL_TEMP, f, ## a) +#define D_SCAN(f, a...) IL_DBG(IL_DL_SCAN, f, ## a) +#define D_RX(f, a...) IL_DBG(IL_DL_RX, f, ## a) +#define D_TX(f, a...) IL_DBG(IL_DL_TX, f, ## a) +#define D_ISR(f, a...) IL_DBG(IL_DL_ISR, f, ## a) +#define D_LED(f, a...) IL_DBG(IL_DL_LED, f, ## a) +#define D_WEP(f, a...) IL_DBG(IL_DL_WEP, f, ## a) +#define D_HC(f, a...) IL_DBG(IL_DL_HCMD, f, ## a) +#define D_HC_DUMP(f, a...) IL_DBG(IL_DL_HCMD_DUMP, f, ## a) +#define D_EEPROM(f, a...) IL_DBG(IL_DL_EEPROM, f, ## a) +#define D_CALIB(f, a...) IL_DBG(IL_DL_CALIB, f, ## a) +#define D_FW(f, a...) IL_DBG(IL_DL_FW, f, ## a) +#define D_RF_KILL(f, a...) IL_DBG(IL_DL_RF_KILL, f, ## a) +#define D_DROP(f, a...) IL_DBG(IL_DL_DROP, f, ## a) +#define D_AP(f, a...) IL_DBG(IL_DL_AP, f, ## a) +#define D_TXPOWER(f, a...) IL_DBG(IL_DL_TXPOWER, f, ## a) +#define D_RATE(f, a...) IL_DBG(IL_DL_RATE, f, ## a) +#define D_NOTIF(f, a...) IL_DBG(IL_DL_NOTIF, f, ## a) +#define D_ASSOC(f, a...) IL_DBG(IL_DL_ASSOC, f, ## a) +#define D_HT(f, a...) IL_DBG(IL_DL_HT, f, ## a) +#define D_STATS(f, a...) IL_DBG(IL_DL_STATS, f, ## a) +#define D_TX_REPLY(f, a...) IL_DBG(IL_DL_TX_REPLY, f, ## a) +#define D_QOS(f, a...) IL_DBG(IL_DL_QOS, f, ## a) +#define D_RADIO(f, a...) IL_DBG(IL_DL_RADIO, f, ## a) +#define D_POWER(f, a...) IL_DBG(IL_DL_POWER, f, ## a) +#define D_11H(f, a...) IL_DBG(IL_DL_11H, f, ## a) + +#endif /* __il_core_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-csr.h b/drivers/net/wireless/iwlegacy/csr.h index 668a9616c269..9138e15004fa 100644 --- a/drivers/net/wireless/iwlegacy/iwl-csr.h +++ b/drivers/net/wireless/iwlegacy/csr.h @@ -60,8 +60,8 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ -#ifndef __iwl_legacy_csr_h__ -#define __iwl_legacy_csr_h__ +#ifndef __il_csr_h__ +#define __il_csr_h__ /* * CSR (control and status registers) * @@ -70,9 +70,9 @@ * low power states due to driver-invoked device resets * (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes. * - * Use iwl_write32() and iwl_read32() family to access these registers; + * Use _il_wr() and _il_rd() family to access these registers; * these provide simple PCI bus access, without waking up the MAC. - * Do not use iwl_legacy_write_direct32() family for these registers; + * Do not use il_wr() family for these registers; * no need to "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ. * The MAC (uCode processor, etc.) does not need to be powered up for accessing * the CSR registers. @@ -82,16 +82,16 @@ */ #define CSR_BASE (0x000) -#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */ -#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */ -#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */ -#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */ -#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack*/ -#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */ -#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/ +#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */ +#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */ +#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */ +#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */ +#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack */ +#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */ +#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc */ #define CSR_GP_CNTRL (CSR_BASE+0x024) -/* 2nd byte of CSR_INT_COALESCING, not accessible via iwl_write32()! */ +/* 2nd byte of CSR_INT_COALESCING, not accessible via _il_wr()! */ #define CSR_INT_PERIODIC_REG (CSR_BASE+0x005) /* @@ -166,26 +166,26 @@ #define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A (0x00080000) #define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000) -#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */ -#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */ -#define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */ +#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */ +#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */ +#define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */ -#define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int*/ -#define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec*/ +#define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int */ +#define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec */ /* interrupt flags in INTA, set by uCode or hardware (e.g. dma), * acknowledged (reset) by host writing "1" to flagged bits. */ -#define CSR_INT_BIT_FH_RX (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */ -#define CSR_INT_BIT_HW_ERR (1 << 29) /* DMA hardware error FH_INT[31] */ -#define CSR_INT_BIT_RX_PERIODIC (1 << 28) /* Rx periodic */ -#define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */ -#define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */ -#define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */ -#define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */ -#define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */ -#define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses, 3945 */ -#define CSR_INT_BIT_WAKEUP (1 << 1) /* NIC controller waking up (pwr mgmt) */ -#define CSR_INT_BIT_ALIVE (1 << 0) /* uCode interrupts once it initializes */ +#define CSR_INT_BIT_FH_RX (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */ +#define CSR_INT_BIT_HW_ERR (1 << 29) /* DMA hardware error FH_INT[31] */ +#define CSR_INT_BIT_RX_PERIODIC (1 << 28) /* Rx periodic */ +#define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */ +#define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */ +#define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */ +#define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */ +#define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */ +#define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses, 3945 */ +#define CSR_INT_BIT_WAKEUP (1 << 1) /* NIC controller waking up (pwr mgmt) */ +#define CSR_INT_BIT_ALIVE (1 << 0) /* uCode interrupts once it initializes */ #define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \ CSR_INT_BIT_HW_ERR | \ @@ -197,21 +197,20 @@ CSR_INT_BIT_ALIVE) /* interrupt flags in FH (flow handler) (PCI busmaster DMA) */ -#define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */ -#define CSR_FH_INT_BIT_HI_PRIOR (1 << 30) /* High priority Rx, bypass coalescing */ -#define CSR39_FH_INT_BIT_RX_CHNL2 (1 << 18) /* Rx channel 2 (3945 only) */ -#define CSR_FH_INT_BIT_RX_CHNL1 (1 << 17) /* Rx channel 1 */ -#define CSR_FH_INT_BIT_RX_CHNL0 (1 << 16) /* Rx channel 0 */ -#define CSR39_FH_INT_BIT_TX_CHNL6 (1 << 6) /* Tx channel 6 (3945 only) */ -#define CSR_FH_INT_BIT_TX_CHNL1 (1 << 1) /* Tx channel 1 */ -#define CSR_FH_INT_BIT_TX_CHNL0 (1 << 0) /* Tx channel 0 */ +#define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */ +#define CSR_FH_INT_BIT_HI_PRIOR (1 << 30) /* High priority Rx, bypass coalescing */ +#define CSR39_FH_INT_BIT_RX_CHNL2 (1 << 18) /* Rx channel 2 (3945 only) */ +#define CSR_FH_INT_BIT_RX_CHNL1 (1 << 17) /* Rx channel 1 */ +#define CSR_FH_INT_BIT_RX_CHNL0 (1 << 16) /* Rx channel 0 */ +#define CSR39_FH_INT_BIT_TX_CHNL6 (1 << 6) /* Tx channel 6 (3945 only) */ +#define CSR_FH_INT_BIT_TX_CHNL1 (1 << 1) /* Tx channel 1 */ +#define CSR_FH_INT_BIT_TX_CHNL0 (1 << 0) /* Tx channel 0 */ #define CSR39_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \ CSR39_FH_INT_BIT_RX_CHNL2 | \ CSR_FH_INT_BIT_RX_CHNL1 | \ CSR_FH_INT_BIT_RX_CHNL0) - #define CSR39_FH_INT_TX_MASK (CSR39_FH_INT_BIT_TX_CHNL6 | \ CSR_FH_INT_BIT_TX_CHNL1 | \ CSR_FH_INT_BIT_TX_CHNL0) @@ -285,7 +284,6 @@ #define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000) #define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000) - /* EEPROM REG */ #define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001) #define CSR_EEPROM_REG_BIT_CMD (0x00000002) @@ -293,19 +291,18 @@ #define CSR_EEPROM_REG_MSK_DATA (0xFFFF0000) /* EEPROM GP */ -#define CSR_EEPROM_GP_VALID_MSK (0x00000007) /* signature */ +#define CSR_EEPROM_GP_VALID_MSK (0x00000007) /* signature */ #define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180) #define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K (0x00000002) #define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K (0x00000004) /* GP REG */ -#define CSR_GP_REG_POWER_SAVE_STATUS_MSK (0x03000000) /* bit 24/25 */ +#define CSR_GP_REG_POWER_SAVE_STATUS_MSK (0x03000000) /* bit 24/25 */ #define CSR_GP_REG_NO_POWER_SAVE (0x00000000) #define CSR_GP_REG_MAC_POWER_SAVE (0x01000000) #define CSR_GP_REG_PHY_POWER_SAVE (0x02000000) #define CSR_GP_REG_POWER_SAVE_ERROR (0x03000000) - /* CSR GIO */ #define CSR_GIO_REG_VAL_L0S_ENABLED (0x00000002) @@ -357,7 +354,7 @@ /* HPET MEM debug */ #define CSR_DBG_HPET_MEM_REG_VAL (0xFFFF0000) -/* DRAM INT TABLE */ +/* DRAM INT TBL */ #define CSR_DRAM_INT_TBL_ENABLE (1 << 31) #define CSR_DRAM_INIT_TBL_WRAP_CHECK (1 << 27) @@ -368,13 +365,13 @@ * to indirectly access device's internal memory or registers that * may be powered-down. * - * Use iwl_legacy_write_direct32()/iwl_legacy_read_direct32() family + * Use il_wr()/il_rd() family * for these registers; * host must "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ * to make sure the MAC (uCode processor, etc.) is powered up for accessing * internal resources. * - * Do not use iwl_write32()/iwl_read32() family to access these registers; + * Do not use _il_wr()/_il_rd() family to access these registers; * these provide only simple PCI bus access, without waking up the MAC. */ #define HBUS_BASE (0x400) @@ -411,12 +408,12 @@ #define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050) /* - * Per-Tx-queue write pointer (index, really!) - * Indicates index to next TFD that driver will fill (1 past latest filled). + * Per-Tx-queue write pointer (idx, really!) + * Indicates idx to next TFD that driver will fill (1 past latest filled). * Bit usage: - * 0-7: queue write index + * 0-7: queue write idx * 11-8: queue selector */ #define HBUS_TARG_WRPTR (HBUS_BASE+0x060) -#endif /* !__iwl_legacy_csr_h__ */ +#endif /* !__il_csr_h__ */ diff --git a/drivers/net/wireless/iwlegacy/debug.c b/drivers/net/wireless/iwlegacy/debug.c new file mode 100644 index 000000000000..b1b8926a9c7b --- /dev/null +++ b/drivers/net/wireless/iwlegacy/debug.c @@ -0,0 +1,1411 @@ +/****************************************************************************** + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + *****************************************************************************/ +#include <linux/ieee80211.h> +#include <linux/export.h> +#include <net/mac80211.h> + +#include "common.h" + +/* create and remove of files */ +#define DEBUGFS_ADD_FILE(name, parent, mode) do { \ + if (!debugfs_create_file(#name, mode, parent, il, \ + &il_dbgfs_##name##_ops)) \ + goto err; \ +} while (0) + +#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \ + struct dentry *__tmp; \ + __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \ + parent, ptr); \ + if (IS_ERR(__tmp) || !__tmp) \ + goto err; \ +} while (0) + +#define DEBUGFS_ADD_X32(name, parent, ptr) do { \ + struct dentry *__tmp; \ + __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \ + parent, ptr); \ + if (IS_ERR(__tmp) || !__tmp) \ + goto err; \ +} while (0) + +/* file operation */ +#define DEBUGFS_READ_FUNC(name) \ +static ssize_t il_dbgfs_##name##_read(struct file *file, \ + char __user *user_buf, \ + size_t count, loff_t *ppos); + +#define DEBUGFS_WRITE_FUNC(name) \ +static ssize_t il_dbgfs_##name##_write(struct file *file, \ + const char __user *user_buf, \ + size_t count, loff_t *ppos); + +static int +il_dbgfs_open_file_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +#define DEBUGFS_READ_FILE_OPS(name) \ + DEBUGFS_READ_FUNC(name); \ +static const struct file_operations il_dbgfs_##name##_ops = { \ + .read = il_dbgfs_##name##_read, \ + .open = il_dbgfs_open_file_generic, \ + .llseek = generic_file_llseek, \ +}; + +#define DEBUGFS_WRITE_FILE_OPS(name) \ + DEBUGFS_WRITE_FUNC(name); \ +static const struct file_operations il_dbgfs_##name##_ops = { \ + .write = il_dbgfs_##name##_write, \ + .open = il_dbgfs_open_file_generic, \ + .llseek = generic_file_llseek, \ +}; + +#define DEBUGFS_READ_WRITE_FILE_OPS(name) \ + DEBUGFS_READ_FUNC(name); \ + DEBUGFS_WRITE_FUNC(name); \ +static const struct file_operations il_dbgfs_##name##_ops = { \ + .write = il_dbgfs_##name##_write, \ + .read = il_dbgfs_##name##_read, \ + .open = il_dbgfs_open_file_generic, \ + .llseek = generic_file_llseek, \ +}; + +static ssize_t +il_dbgfs_tx_stats_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + char *buf; + int pos = 0; + + int cnt; + ssize_t ret; + const size_t bufsz = + 100 + sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX); + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + pos += scnprintf(buf + pos, bufsz - pos, "Management:\n"); + for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n", + il_get_mgmt_string(cnt), il->tx_stats.mgmt[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "Control\n"); + for (cnt = 0; cnt < CONTROL_MAX; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n", + il_get_ctrl_string(cnt), il->tx_stats.ctrl[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "Data:\n"); + pos += + scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n", + il->tx_stats.data_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n", + il->tx_stats.data_bytes); + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_clear_traffic_stats_write(struct file *file, + const char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct il_priv *il = file->private_data; + u32 clear_flag; + char buf[8]; + int buf_size; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%x", &clear_flag) != 1) + return -EFAULT; + il_clear_traffic_stats(il); + + return count; +} + +static ssize_t +il_dbgfs_rx_stats_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + char *buf; + int pos = 0; + int cnt; + ssize_t ret; + const size_t bufsz = + 100 + sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX); + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + pos += scnprintf(buf + pos, bufsz - pos, "Management:\n"); + for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n", + il_get_mgmt_string(cnt), il->rx_stats.mgmt[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "Control:\n"); + for (cnt = 0; cnt < CONTROL_MAX; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n", + il_get_ctrl_string(cnt), il->rx_stats.ctrl[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "Data:\n"); + pos += + scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n", + il->rx_stats.data_cnt); + pos += + scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n", + il->rx_stats.data_bytes); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +#define BYTE1_MASK 0x000000ff; +#define BYTE2_MASK 0x0000ffff; +#define BYTE3_MASK 0x00ffffff; +static ssize_t +il_dbgfs_sram_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + u32 val; + char *buf; + ssize_t ret; + int i; + int pos = 0; + struct il_priv *il = file->private_data; + size_t bufsz; + + /* default is to dump the entire data segment */ + if (!il->dbgfs_sram_offset && !il->dbgfs_sram_len) { + il->dbgfs_sram_offset = 0x800000; + if (il->ucode_type == UCODE_INIT) + il->dbgfs_sram_len = il->ucode_init_data.len; + else + il->dbgfs_sram_len = il->ucode_data.len; + } + bufsz = 30 + il->dbgfs_sram_len * sizeof(char) * 10; + buf = kmalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + pos += + scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", + il->dbgfs_sram_len); + pos += + scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", + il->dbgfs_sram_offset); + for (i = il->dbgfs_sram_len; i > 0; i -= 4) { + val = + il_read_targ_mem(il, + il->dbgfs_sram_offset + + il->dbgfs_sram_len - i); + if (i < 4) { + switch (i) { + case 1: + val &= BYTE1_MASK; + break; + case 2: + val &= BYTE2_MASK; + break; + case 3: + val &= BYTE3_MASK; + break; + } + } + if (!(i % 16)) + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val); + } + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_sram_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[64]; + int buf_size; + u32 offset, len; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + + if (sscanf(buf, "%x,%x", &offset, &len) == 2) { + il->dbgfs_sram_offset = offset; + il->dbgfs_sram_len = len; + } else { + il->dbgfs_sram_offset = 0; + il->dbgfs_sram_len = 0; + } + + return count; +} + +static ssize_t +il_dbgfs_stations_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct il_priv *il = file->private_data; + struct il_station_entry *station; + int max_sta = il->hw_params.max_stations; + char *buf; + int i, j, pos = 0; + ssize_t ret; + /* Add 30 for initial string */ + const size_t bufsz = 30 + sizeof(char) * 500 * (il->num_stations); + + buf = kmalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + pos += + scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n", + il->num_stations); + + for (i = 0; i < max_sta; i++) { + station = &il->stations[i]; + if (!station->used) + continue; + pos += + scnprintf(buf + pos, bufsz - pos, + "station %d - addr: %pM, flags: %#x\n", i, + station->sta.sta.addr, + station->sta.station_flags_msk); + pos += + scnprintf(buf + pos, bufsz - pos, + "TID\tseq_num\ttxq_id\tframes\ttfds\t"); + pos += + scnprintf(buf + pos, bufsz - pos, + "start_idx\tbitmap\t\t\trate_n_flags\n"); + + for (j = 0; j < MAX_TID_COUNT; j++) { + pos += + scnprintf(buf + pos, bufsz - pos, + "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x", + j, station->tid[j].seq_number, + station->tid[j].agg.txq_id, + station->tid[j].agg.frame_count, + station->tid[j].tfds_in_queue, + station->tid[j].agg.start_idx, + station->tid[j].agg.bitmap, + station->tid[j].agg.rate_n_flags); + + if (station->tid[j].agg.wait_for_ba) + pos += + scnprintf(buf + pos, bufsz - pos, + " - waitforba"); + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + } + + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_nvm_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + ssize_t ret; + struct il_priv *il = file->private_data; + int pos = 0, ofs = 0, buf_size = 0; + const u8 *ptr; + char *buf; + u16 eeprom_ver; + size_t eeprom_len = il->cfg->base_params->eeprom_size; + buf_size = 4 * eeprom_len + 256; + + if (eeprom_len % 16) { + IL_ERR("NVM size is not multiple of 16.\n"); + return -ENODATA; + } + + ptr = il->eeprom; + if (!ptr) { + IL_ERR("Invalid EEPROM memory\n"); + return -ENOMEM; + } + + /* 4 characters for byte 0xYY */ + buf = kzalloc(buf_size, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + eeprom_ver = il_eeprom_query16(il, EEPROM_VERSION); + pos += + scnprintf(buf + pos, buf_size - pos, "EEPROM " "version: 0x%x\n", + eeprom_ver); + for (ofs = 0; ofs < eeprom_len; ofs += 16) { + pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 2, buf + pos, + buf_size - pos, 0); + pos += strlen(buf + pos); + if (buf_size - pos > 0) + buf[pos++] = '\n'; + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_channels_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct il_priv *il = file->private_data; + struct ieee80211_channel *channels = NULL; + const struct ieee80211_supported_band *supp_band = NULL; + int pos = 0, i, bufsz = PAGE_SIZE; + char *buf; + ssize_t ret; + + if (!test_bit(S_GEO_CONFIGURED, &il->status)) + return -EAGAIN; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + supp_band = il_get_hw_mode(il, IEEE80211_BAND_2GHZ); + if (supp_band) { + channels = supp_band->channels; + + pos += + scnprintf(buf + pos, bufsz - pos, + "Displaying %d channels in 2.4GHz band 802.11bg):\n", + supp_band->n_channels); + + for (i = 0; i < supp_band->n_channels; i++) + pos += + scnprintf(buf + pos, bufsz - pos, + "%d: %ddBm: BSS%s%s, %s.\n", + channels[i].hw_value, + channels[i].max_power, + channels[i]. + flags & IEEE80211_CHAN_RADAR ? + " (IEEE 802.11h required)" : "", + ((channels[i]. + flags & IEEE80211_CHAN_NO_IBSS) || + (channels[i]. + flags & IEEE80211_CHAN_RADAR)) ? "" : + ", IBSS", + channels[i]. + flags & IEEE80211_CHAN_PASSIVE_SCAN ? + "passive only" : "active/passive"); + } + supp_band = il_get_hw_mode(il, IEEE80211_BAND_5GHZ); + if (supp_band) { + channels = supp_band->channels; + + pos += + scnprintf(buf + pos, bufsz - pos, + "Displaying %d channels in 5.2GHz band (802.11a)\n", + supp_band->n_channels); + + for (i = 0; i < supp_band->n_channels; i++) + pos += + scnprintf(buf + pos, bufsz - pos, + "%d: %ddBm: BSS%s%s, %s.\n", + channels[i].hw_value, + channels[i].max_power, + channels[i]. + flags & IEEE80211_CHAN_RADAR ? + " (IEEE 802.11h required)" : "", + ((channels[i]. + flags & IEEE80211_CHAN_NO_IBSS) || + (channels[i]. + flags & IEEE80211_CHAN_RADAR)) ? "" : + ", IBSS", + channels[i]. + flags & IEEE80211_CHAN_PASSIVE_SCAN ? + "passive only" : "active/passive"); + } + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_status_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + char buf[512]; + int pos = 0; + const size_t bufsz = sizeof(buf); + + pos += + scnprintf(buf + pos, bufsz - pos, "S_HCMD_ACTIVE:\t %d\n", + test_bit(S_HCMD_ACTIVE, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_INT_ENABLED:\t %d\n", + test_bit(S_INT_ENABLED, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_RF_KILL_HW:\t %d\n", + test_bit(S_RF_KILL_HW, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_CT_KILL:\t\t %d\n", + test_bit(S_CT_KILL, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_INIT:\t\t %d\n", + test_bit(S_INIT, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_ALIVE:\t\t %d\n", + test_bit(S_ALIVE, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_READY:\t\t %d\n", + test_bit(S_READY, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_TEMPERATURE:\t %d\n", + test_bit(S_TEMPERATURE, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_GEO_CONFIGURED:\t %d\n", + test_bit(S_GEO_CONFIGURED, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_EXIT_PENDING:\t %d\n", + test_bit(S_EXIT_PENDING, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_STATS:\t %d\n", + test_bit(S_STATS, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_SCANNING:\t %d\n", + test_bit(S_SCANNING, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_SCAN_ABORTING:\t %d\n", + test_bit(S_SCAN_ABORTING, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_SCAN_HW:\t\t %d\n", + test_bit(S_SCAN_HW, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_POWER_PMI:\t %d\n", + test_bit(S_POWER_PMI, &il->status)); + pos += + scnprintf(buf + pos, bufsz - pos, "S_FW_ERROR:\t %d\n", + test_bit(S_FW_ERROR, &il->status)); + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +il_dbgfs_interrupt_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + int pos = 0; + int cnt = 0; + char *buf; + int bufsz = 24 * 64; /* 24 items * 64 char per item */ + ssize_t ret; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + pos += + scnprintf(buf + pos, bufsz - pos, "Interrupt Statistics Report:\n"); + + pos += + scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n", + il->isr_stats.hw); + pos += + scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n", + il->isr_stats.sw); + if (il->isr_stats.sw || il->isr_stats.hw) { + pos += + scnprintf(buf + pos, bufsz - pos, + "\tLast Restarting Code: 0x%X\n", + il->isr_stats.err_code); + } +#ifdef CONFIG_IWLEGACY_DEBUG + pos += + scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n", + il->isr_stats.sch); + pos += + scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n", + il->isr_stats.alive); +#endif + pos += + scnprintf(buf + pos, bufsz - pos, + "HW RF KILL switch toggled:\t %u\n", + il->isr_stats.rfkill); + + pos += + scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n", + il->isr_stats.ctkill); + + pos += + scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n", + il->isr_stats.wakeup); + + pos += + scnprintf(buf + pos, bufsz - pos, "Rx command responses:\t\t %u\n", + il->isr_stats.rx); + for (cnt = 0; cnt < IL_CN_MAX; cnt++) { + if (il->isr_stats.handlers[cnt] > 0) + pos += + scnprintf(buf + pos, bufsz - pos, + "\tRx handler[%36s]:\t\t %u\n", + il_get_cmd_string(cnt), + il->isr_stats.handlers[cnt]); + } + + pos += + scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n", + il->isr_stats.tx); + + pos += + scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n", + il->isr_stats.unhandled); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_interrupt_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[8]; + int buf_size; + u32 reset_flag; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%x", &reset_flag) != 1) + return -EFAULT; + if (reset_flag == 0) + il_clear_isr_stats(il); + + return count; +} + +static ssize_t +il_dbgfs_qos_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct il_priv *il = file->private_data; + struct il_rxon_context *ctx = &il->ctx; + int pos = 0, i; + char buf[256]; + const size_t bufsz = sizeof(buf); + + pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", ctx->ctxid); + for (i = 0; i < AC_NUM; i++) { + pos += + scnprintf(buf + pos, bufsz - pos, + "\tcw_min\tcw_max\taifsn\ttxop\n"); + pos += + scnprintf(buf + pos, bufsz - pos, + "AC[%d]\t%u\t%u\t%u\t%u\n", i, + ctx->qos_data.def_qos_parm.ac[i].cw_min, + ctx->qos_data.def_qos_parm.ac[i].cw_max, + ctx->qos_data.def_qos_parm.ac[i].aifsn, + ctx->qos_data.def_qos_parm.ac[i].edca_txop); + } + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +il_dbgfs_disable_ht40_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[8]; + int buf_size; + int ht40; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &ht40) != 1) + return -EFAULT; + if (!il_is_any_associated(il)) + il->disable_ht40 = ht40 ? true : false; + else { + IL_ERR("Sta associated with AP - " + "Change to 40MHz channel support is not allowed\n"); + return -EINVAL; + } + + return count; +} + +static ssize_t +il_dbgfs_disable_ht40_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[100]; + int pos = 0; + const size_t bufsz = sizeof(buf); + + pos += + scnprintf(buf + pos, bufsz - pos, "11n 40MHz Mode: %s\n", + il->disable_ht40 ? "Disabled" : "Enabled"); + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +DEBUGFS_READ_WRITE_FILE_OPS(sram); +DEBUGFS_READ_FILE_OPS(nvm); +DEBUGFS_READ_FILE_OPS(stations); +DEBUGFS_READ_FILE_OPS(channels); +DEBUGFS_READ_FILE_OPS(status); +DEBUGFS_READ_WRITE_FILE_OPS(interrupt); +DEBUGFS_READ_FILE_OPS(qos); +DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40); + +static ssize_t +il_dbgfs_traffic_log_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + int pos = 0, ofs = 0; + int cnt = 0, entry; + struct il_tx_queue *txq; + struct il_queue *q; + struct il_rx_queue *rxq = &il->rxq; + char *buf; + int bufsz = + ((IL_TRAFFIC_ENTRIES * IL_TRAFFIC_ENTRY_SIZE * 64) * 2) + + (il->cfg->base_params->num_of_queues * 32 * 8) + 400; + const u8 *ptr; + ssize_t ret; + + if (!il->txq) { + IL_ERR("txq not ready\n"); + return -EAGAIN; + } + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate buffer\n"); + return -ENOMEM; + } + pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n"); + for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) { + txq = &il->txq[cnt]; + q = &txq->q; + pos += + scnprintf(buf + pos, bufsz - pos, + "q[%d]: read_ptr: %u, write_ptr: %u\n", cnt, + q->read_ptr, q->write_ptr); + } + if (il->tx_traffic && (il_debug_level & IL_DL_TX)) { + ptr = il->tx_traffic; + pos += + scnprintf(buf + pos, bufsz - pos, "Tx Traffic idx: %u\n", + il->tx_traffic_idx); + for (cnt = 0, ofs = 0; cnt < IL_TRAFFIC_ENTRIES; cnt++) { + for (entry = 0; entry < IL_TRAFFIC_ENTRY_SIZE / 16; + entry++, ofs += 16) { + pos += + scnprintf(buf + pos, bufsz - pos, "0x%.4x ", + ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 2, + buf + pos, bufsz - pos, 0); + pos += strlen(buf + pos); + if (bufsz - pos > 0) + buf[pos++] = '\n'; + } + } + } + + pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n"); + pos += + scnprintf(buf + pos, bufsz - pos, "read: %u, write: %u\n", + rxq->read, rxq->write); + + if (il->rx_traffic && (il_debug_level & IL_DL_RX)) { + ptr = il->rx_traffic; + pos += + scnprintf(buf + pos, bufsz - pos, "Rx Traffic idx: %u\n", + il->rx_traffic_idx); + for (cnt = 0, ofs = 0; cnt < IL_TRAFFIC_ENTRIES; cnt++) { + for (entry = 0; entry < IL_TRAFFIC_ENTRY_SIZE / 16; + entry++, ofs += 16) { + pos += + scnprintf(buf + pos, bufsz - pos, "0x%.4x ", + ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 2, + buf + pos, bufsz - pos, 0); + pos += strlen(buf + pos); + if (bufsz - pos > 0) + buf[pos++] = '\n'; + } + } + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_traffic_log_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[8]; + int buf_size; + int traffic_log; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &traffic_log) != 1) + return -EFAULT; + if (traffic_log == 0) + il_reset_traffic_log(il); + + return count; +} + +static ssize_t +il_dbgfs_tx_queue_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + struct il_tx_queue *txq; + struct il_queue *q; + char *buf; + int pos = 0; + int cnt; + int ret; + const size_t bufsz = + sizeof(char) * 64 * il->cfg->base_params->num_of_queues; + + if (!il->txq) { + IL_ERR("txq not ready\n"); + return -EAGAIN; + } + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) { + txq = &il->txq[cnt]; + q = &txq->q; + pos += + scnprintf(buf + pos, bufsz - pos, + "hwq %.2d: read=%u write=%u stop=%d" + " swq_id=%#.2x (ac %d/hwq %d)\n", cnt, + q->read_ptr, q->write_ptr, + !!test_bit(cnt, il->queue_stopped), + txq->swq_id, txq->swq_id & 3, + (txq->swq_id >> 2) & 0x1f); + if (cnt >= 4) + continue; + /* for the ACs, display the stop count too */ + pos += + scnprintf(buf + pos, bufsz - pos, + " stop-count: %d\n", + atomic_read(&il->queue_stop_count[cnt])); + } + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_rx_queue_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + struct il_rx_queue *rxq = &il->rxq; + char buf[256]; + int pos = 0; + const size_t bufsz = sizeof(buf); + + pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n", rxq->read); + pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n", rxq->write); + pos += + scnprintf(buf + pos, bufsz - pos, "free_count: %u\n", + rxq->free_count); + if (rxq->rb_stts) { + pos += + scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n", + le16_to_cpu(rxq->rb_stts-> + closed_rb_num) & 0x0FFF); + } else { + pos += + scnprintf(buf + pos, bufsz - pos, + "closed_rb_num: Not Allocated\n"); + } + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +il_dbgfs_ucode_rx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + return il->cfg->ops->lib->debugfs_ops.rx_stats_read(file, user_buf, + count, ppos); +} + +static ssize_t +il_dbgfs_ucode_tx_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + return il->cfg->ops->lib->debugfs_ops.tx_stats_read(file, user_buf, + count, ppos); +} + +static ssize_t +il_dbgfs_ucode_general_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + return il->cfg->ops->lib->debugfs_ops.general_stats_read(file, user_buf, + count, ppos); +} + +static ssize_t +il_dbgfs_sensitivity_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + int pos = 0; + int cnt = 0; + char *buf; + int bufsz = sizeof(struct il_sensitivity_data) * 4 + 100; + ssize_t ret; + struct il_sensitivity_data *data; + + data = &il->sensitivity_data; + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + pos += + scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n", + data->auto_corr_ofdm); + pos += + scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc:\t\t %u\n", + data->auto_corr_ofdm_mrc); + pos += + scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n", + data->auto_corr_ofdm_x1); + pos += + scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc_x1:\t\t %u\n", + data->auto_corr_ofdm_mrc_x1); + pos += + scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n", + data->auto_corr_cck); + pos += + scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n", + data->auto_corr_cck_mrc); + pos += + scnprintf(buf + pos, bufsz - pos, + "last_bad_plcp_cnt_ofdm:\t\t %u\n", + data->last_bad_plcp_cnt_ofdm); + pos += + scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n", + data->last_fa_cnt_ofdm); + pos += + scnprintf(buf + pos, bufsz - pos, "last_bad_plcp_cnt_cck:\t\t %u\n", + data->last_bad_plcp_cnt_cck); + pos += + scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n", + data->last_fa_cnt_cck); + pos += + scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n", + data->nrg_curr_state); + pos += + scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n", + data->nrg_prev_state); + pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t"); + for (cnt = 0; cnt < 10; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, " %u", + data->nrg_value[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t"); + for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, " %u", + data->nrg_silence_rssi[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + pos += + scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n", + data->nrg_silence_ref); + pos += + scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n", + data->nrg_energy_idx); + pos += + scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n", + data->nrg_silence_idx); + pos += + scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n", + data->nrg_th_cck); + pos += + scnprintf(buf + pos, bufsz - pos, + "nrg_auto_corr_silence_diff:\t %u\n", + data->nrg_auto_corr_silence_diff); + pos += + scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n", + data->num_in_cck_no_fa); + pos += + scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n", + data->nrg_th_ofdm); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_chain_noise_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + int pos = 0; + int cnt = 0; + char *buf; + int bufsz = sizeof(struct il_chain_noise_data) * 4 + 100; + ssize_t ret; + struct il_chain_noise_data *data; + + data = &il->chain_noise_data; + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IL_ERR("Can not allocate Buffer\n"); + return -ENOMEM; + } + + pos += + scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n", + data->active_chains); + pos += + scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n", + data->chain_noise_a); + pos += + scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n", + data->chain_noise_b); + pos += + scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n", + data->chain_noise_c); + pos += + scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n", + data->chain_signal_a); + pos += + scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n", + data->chain_signal_b); + pos += + scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n", + data->chain_signal_c); + pos += + scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n", + data->beacon_count); + + pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t"); + for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, " %u", + data->disconn_array[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t"); + for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { + pos += + scnprintf(buf + pos, bufsz - pos, " %u", + data->delta_gain_code[cnt]); + } + pos += scnprintf(buf + pos, bufsz - pos, "\n"); + pos += + scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n", + data->radio_write); + pos += + scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n", + data->state); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t +il_dbgfs_power_save_status_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[60]; + int pos = 0; + const size_t bufsz = sizeof(buf); + u32 pwrsave_status; + + pwrsave_status = + _il_rd(il, CSR_GP_CNTRL) & CSR_GP_REG_POWER_SAVE_STATUS_MSK; + + pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: "); + pos += + scnprintf(buf + pos, bufsz - pos, "%s\n", + (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" : + (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" : + (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" : + "error"); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +il_dbgfs_clear_ucode_stats_write(struct file *file, + const char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[8]; + int buf_size; + int clear; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &clear) != 1) + return -EFAULT; + + /* make request to uCode to retrieve stats information */ + mutex_lock(&il->mutex); + il_send_stats_request(il, CMD_SYNC, true); + mutex_unlock(&il->mutex); + + return count; +} + +static ssize_t +il_dbgfs_rxon_flags_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + int len = 0; + char buf[20]; + + len = sprintf(buf, "0x%04X\n", le32_to_cpu(il->ctx.active.flags)); + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t +il_dbgfs_rxon_filter_flags_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + int len = 0; + char buf[20]; + + len = + sprintf(buf, "0x%04X\n", le32_to_cpu(il->ctx.active.filter_flags)); + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t +il_dbgfs_fh_reg_read(struct file *file, char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char *buf; + int pos = 0; + ssize_t ret = -EFAULT; + + if (il->cfg->ops->lib->dump_fh) { + ret = pos = il->cfg->ops->lib->dump_fh(il, &buf, true); + if (buf) { + ret = + simple_read_from_buffer(user_buf, count, ppos, buf, + pos); + kfree(buf); + } + } + + return ret; +} + +static ssize_t +il_dbgfs_missed_beacon_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + int pos = 0; + char buf[12]; + const size_t bufsz = sizeof(buf); + + pos += + scnprintf(buf + pos, bufsz - pos, "%d\n", + il->missed_beacon_threshold); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +il_dbgfs_missed_beacon_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct il_priv *il = file->private_data; + char buf[8]; + int buf_size; + int missed; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &missed) != 1) + return -EINVAL; + + if (missed < IL_MISSED_BEACON_THRESHOLD_MIN || + missed > IL_MISSED_BEACON_THRESHOLD_MAX) + il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF; + else + il->missed_beacon_threshold = missed; + + return count; +} + +static ssize_t +il_dbgfs_force_reset_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + int pos = 0; + char buf[300]; + const size_t bufsz = sizeof(buf); + struct il_force_reset *force_reset; + + force_reset = &il->force_reset; + + pos += + scnprintf(buf + pos, bufsz - pos, "\tnumber of reset request: %d\n", + force_reset->reset_request_count); + pos += + scnprintf(buf + pos, bufsz - pos, + "\tnumber of reset request success: %d\n", + force_reset->reset_success_count); + pos += + scnprintf(buf + pos, bufsz - pos, + "\tnumber of reset request reject: %d\n", + force_reset->reset_reject_count); + pos += + scnprintf(buf + pos, bufsz - pos, "\treset duration: %lu\n", + force_reset->reset_duration); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +il_dbgfs_force_reset_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + + int ret; + struct il_priv *il = file->private_data; + + ret = il_force_reset(il, true); + + return ret ? ret : count; +} + +static ssize_t +il_dbgfs_wd_timeout_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + + struct il_priv *il = file->private_data; + char buf[8]; + int buf_size; + int timeout; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &timeout) != 1) + return -EINVAL; + if (timeout < 0 || timeout > IL_MAX_WD_TIMEOUT) + timeout = IL_DEF_WD_TIMEOUT; + + il->cfg->base_params->wd_timeout = timeout; + il_setup_watchdog(il); + return count; +} + +DEBUGFS_READ_FILE_OPS(rx_stats); +DEBUGFS_READ_FILE_OPS(tx_stats); +DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); +DEBUGFS_READ_FILE_OPS(rx_queue); +DEBUGFS_READ_FILE_OPS(tx_queue); +DEBUGFS_READ_FILE_OPS(ucode_rx_stats); +DEBUGFS_READ_FILE_OPS(ucode_tx_stats); +DEBUGFS_READ_FILE_OPS(ucode_general_stats); +DEBUGFS_READ_FILE_OPS(sensitivity); +DEBUGFS_READ_FILE_OPS(chain_noise); +DEBUGFS_READ_FILE_OPS(power_save_status); +DEBUGFS_WRITE_FILE_OPS(clear_ucode_stats); +DEBUGFS_WRITE_FILE_OPS(clear_traffic_stats); +DEBUGFS_READ_FILE_OPS(fh_reg); +DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon); +DEBUGFS_READ_WRITE_FILE_OPS(force_reset); +DEBUGFS_READ_FILE_OPS(rxon_flags); +DEBUGFS_READ_FILE_OPS(rxon_filter_flags); +DEBUGFS_WRITE_FILE_OPS(wd_timeout); + +/* + * Create the debugfs files and directories + * + */ +int +il_dbgfs_register(struct il_priv *il, const char *name) +{ + struct dentry *phyd = il->hw->wiphy->debugfsdir; + struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug; + + dir_drv = debugfs_create_dir(name, phyd); + if (!dir_drv) + return -ENOMEM; + + il->debugfs_dir = dir_drv; + + dir_data = debugfs_create_dir("data", dir_drv); + if (!dir_data) + goto err; + dir_rf = debugfs_create_dir("rf", dir_drv); + if (!dir_rf) + goto err; + dir_debug = debugfs_create_dir("debug", dir_drv); + if (!dir_debug) + goto err; + + DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR); + DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR); + DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR); + DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR); + DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR); + DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(rx_stats, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(tx_stats, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(clear_ucode_stats, dir_debug, S_IWUSR); + DEBUGFS_ADD_FILE(clear_traffic_stats, dir_debug, S_IWUSR); + DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR); + DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR); + + if (il->cfg->base_params->sensitivity_calib_by_driver) + DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR); + if (il->cfg->base_params->chain_noise_calib_by_driver) + DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR); + DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR); + DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR); + DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR); + if (il->cfg->base_params->sensitivity_calib_by_driver) + DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, + &il->disable_sens_cal); + if (il->cfg->base_params->chain_noise_calib_by_driver) + DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf, + &il->disable_chain_noise_cal); + DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf, &il->disable_tx_power_cal); + return 0; + +err: + IL_ERR("Can't create the debugfs directory\n"); + il_dbgfs_unregister(il); + return -ENOMEM; +} +EXPORT_SYMBOL(il_dbgfs_register); + +/** + * Remove the debugfs files and directories + * + */ +void +il_dbgfs_unregister(struct il_priv *il) +{ + if (!il->debugfs_dir) + return; + + debugfs_remove_recursive(il->debugfs_dir); + il->debugfs_dir = NULL; +} +EXPORT_SYMBOL(il_dbgfs_unregister); diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.c deleted file mode 100644 index cfabb38793ab..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.c +++ /dev/null @@ -1,523 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - -#include "iwl-3945-debugfs.h" - - -static int iwl3945_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz) -{ - int p = 0; - - p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", - le32_to_cpu(priv->_3945.statistics.flag)); - if (le32_to_cpu(priv->_3945.statistics.flag) & - UCODE_STATISTICS_CLEAR_MSK) - p += scnprintf(buf + p, bufsz - p, - "\tStatistics have been cleared\n"); - p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n", - (le32_to_cpu(priv->_3945.statistics.flag) & - UCODE_STATISTICS_FREQUENCY_MSK) - ? "2.4 GHz" : "5.2 GHz"); - p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n", - (le32_to_cpu(priv->_3945.statistics.flag) & - UCODE_STATISTICS_NARROW_BAND_MSK) - ? "enabled" : "disabled"); - return p; -} - -ssize_t iwl3945_ucode_rx_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - int pos = 0; - char *buf; - int bufsz = sizeof(struct iwl39_statistics_rx_phy) * 40 + - sizeof(struct iwl39_statistics_rx_non_phy) * 40 + 400; - ssize_t ret; - struct iwl39_statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, - *max_ofdm; - struct iwl39_statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck; - struct iwl39_statistics_rx_non_phy *general, *accum_general; - struct iwl39_statistics_rx_non_phy *delta_general, *max_general; - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - /* - * The statistic information display here is based on - * the last statistics notification from uCode - * might not reflect the current uCode activity - */ - ofdm = &priv->_3945.statistics.rx.ofdm; - cck = &priv->_3945.statistics.rx.cck; - general = &priv->_3945.statistics.rx.general; - accum_ofdm = &priv->_3945.accum_statistics.rx.ofdm; - accum_cck = &priv->_3945.accum_statistics.rx.cck; - accum_general = &priv->_3945.accum_statistics.rx.general; - delta_ofdm = &priv->_3945.delta_statistics.rx.ofdm; - delta_cck = &priv->_3945.delta_statistics.rx.cck; - delta_general = &priv->_3945.delta_statistics.rx.general; - max_ofdm = &priv->_3945.max_delta.rx.ofdm; - max_cck = &priv->_3945.max_delta.rx.cck; - max_general = &priv->_3945.max_delta.rx.general; - - pos += iwl3945_statistics_flag(priv, buf, bufsz); - pos += scnprintf(buf + pos, bufsz - pos, "%-32s current" - "acumulative delta max\n", - "Statistics_Rx - OFDM:"); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "ina_cnt:", le32_to_cpu(ofdm->ina_cnt), - accum_ofdm->ina_cnt, - delta_ofdm->ina_cnt, max_ofdm->ina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "fina_cnt:", - le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt, - delta_ofdm->fina_cnt, max_ofdm->fina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", "plcp_err:", - le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err, - delta_ofdm->plcp_err, max_ofdm->plcp_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", "crc32_err:", - le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err, - delta_ofdm->crc32_err, max_ofdm->crc32_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", "overrun_err:", - le32_to_cpu(ofdm->overrun_err), - accum_ofdm->overrun_err, delta_ofdm->overrun_err, - max_ofdm->overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "early_overrun_err:", - le32_to_cpu(ofdm->early_overrun_err), - accum_ofdm->early_overrun_err, - delta_ofdm->early_overrun_err, - max_ofdm->early_overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "crc32_good:", le32_to_cpu(ofdm->crc32_good), - accum_ofdm->crc32_good, delta_ofdm->crc32_good, - max_ofdm->crc32_good); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", "false_alarm_cnt:", - le32_to_cpu(ofdm->false_alarm_cnt), - accum_ofdm->false_alarm_cnt, - delta_ofdm->false_alarm_cnt, - max_ofdm->false_alarm_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "fina_sync_err_cnt:", - le32_to_cpu(ofdm->fina_sync_err_cnt), - accum_ofdm->fina_sync_err_cnt, - delta_ofdm->fina_sync_err_cnt, - max_ofdm->fina_sync_err_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "sfd_timeout:", - le32_to_cpu(ofdm->sfd_timeout), - accum_ofdm->sfd_timeout, - delta_ofdm->sfd_timeout, - max_ofdm->sfd_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "fina_timeout:", - le32_to_cpu(ofdm->fina_timeout), - accum_ofdm->fina_timeout, - delta_ofdm->fina_timeout, - max_ofdm->fina_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "unresponded_rts:", - le32_to_cpu(ofdm->unresponded_rts), - accum_ofdm->unresponded_rts, - delta_ofdm->unresponded_rts, - max_ofdm->unresponded_rts); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "rxe_frame_lmt_ovrun:", - le32_to_cpu(ofdm->rxe_frame_limit_overrun), - accum_ofdm->rxe_frame_limit_overrun, - delta_ofdm->rxe_frame_limit_overrun, - max_ofdm->rxe_frame_limit_overrun); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "sent_ack_cnt:", - le32_to_cpu(ofdm->sent_ack_cnt), - accum_ofdm->sent_ack_cnt, - delta_ofdm->sent_ack_cnt, - max_ofdm->sent_ack_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "sent_cts_cnt:", - le32_to_cpu(ofdm->sent_cts_cnt), - accum_ofdm->sent_cts_cnt, - delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt); - - pos += scnprintf(buf + pos, bufsz - pos, "%-32s current" - "acumulative delta max\n", - "Statistics_Rx - CCK:"); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "ina_cnt:", - le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt, - delta_cck->ina_cnt, max_cck->ina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "fina_cnt:", - le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt, - delta_cck->fina_cnt, max_cck->fina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "plcp_err:", - le32_to_cpu(cck->plcp_err), accum_cck->plcp_err, - delta_cck->plcp_err, max_cck->plcp_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "crc32_err:", - le32_to_cpu(cck->crc32_err), accum_cck->crc32_err, - delta_cck->crc32_err, max_cck->crc32_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "overrun_err:", - le32_to_cpu(cck->overrun_err), - accum_cck->overrun_err, - delta_cck->overrun_err, max_cck->overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "early_overrun_err:", - le32_to_cpu(cck->early_overrun_err), - accum_cck->early_overrun_err, - delta_cck->early_overrun_err, - max_cck->early_overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "crc32_good:", - le32_to_cpu(cck->crc32_good), accum_cck->crc32_good, - delta_cck->crc32_good, - max_cck->crc32_good); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "false_alarm_cnt:", - le32_to_cpu(cck->false_alarm_cnt), - accum_cck->false_alarm_cnt, - delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "fina_sync_err_cnt:", - le32_to_cpu(cck->fina_sync_err_cnt), - accum_cck->fina_sync_err_cnt, - delta_cck->fina_sync_err_cnt, - max_cck->fina_sync_err_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "sfd_timeout:", - le32_to_cpu(cck->sfd_timeout), - accum_cck->sfd_timeout, - delta_cck->sfd_timeout, max_cck->sfd_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "fina_timeout:", - le32_to_cpu(cck->fina_timeout), - accum_cck->fina_timeout, - delta_cck->fina_timeout, max_cck->fina_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "unresponded_rts:", - le32_to_cpu(cck->unresponded_rts), - accum_cck->unresponded_rts, - delta_cck->unresponded_rts, - max_cck->unresponded_rts); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "rxe_frame_lmt_ovrun:", - le32_to_cpu(cck->rxe_frame_limit_overrun), - accum_cck->rxe_frame_limit_overrun, - delta_cck->rxe_frame_limit_overrun, - max_cck->rxe_frame_limit_overrun); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "sent_ack_cnt:", - le32_to_cpu(cck->sent_ack_cnt), - accum_cck->sent_ack_cnt, - delta_cck->sent_ack_cnt, - max_cck->sent_ack_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "sent_cts_cnt:", - le32_to_cpu(cck->sent_cts_cnt), - accum_cck->sent_cts_cnt, - delta_cck->sent_cts_cnt, - max_cck->sent_cts_cnt); - - pos += scnprintf(buf + pos, bufsz - pos, "%-32s current" - "acumulative delta max\n", - "Statistics_Rx - GENERAL:"); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "bogus_cts:", - le32_to_cpu(general->bogus_cts), - accum_general->bogus_cts, - delta_general->bogus_cts, max_general->bogus_cts); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "bogus_ack:", - le32_to_cpu(general->bogus_ack), - accum_general->bogus_ack, - delta_general->bogus_ack, max_general->bogus_ack); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "non_bssid_frames:", - le32_to_cpu(general->non_bssid_frames), - accum_general->non_bssid_frames, - delta_general->non_bssid_frames, - max_general->non_bssid_frames); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "filtered_frames:", - le32_to_cpu(general->filtered_frames), - accum_general->filtered_frames, - delta_general->filtered_frames, - max_general->filtered_frames); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "non_channel_beacons:", - le32_to_cpu(general->non_channel_beacons), - accum_general->non_channel_beacons, - delta_general->non_channel_beacons, - max_general->non_channel_beacons); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -ssize_t iwl3945_ucode_tx_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - int pos = 0; - char *buf; - int bufsz = (sizeof(struct iwl39_statistics_tx) * 48) + 250; - ssize_t ret; - struct iwl39_statistics_tx *tx, *accum_tx, *delta_tx, *max_tx; - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - /* - * The statistic information display here is based on - * the last statistics notification from uCode - * might not reflect the current uCode activity - */ - tx = &priv->_3945.statistics.tx; - accum_tx = &priv->_3945.accum_statistics.tx; - delta_tx = &priv->_3945.delta_statistics.tx; - max_tx = &priv->_3945.max_delta.tx; - pos += iwl3945_statistics_flag(priv, buf, bufsz); - pos += scnprintf(buf + pos, bufsz - pos, "%-32s current" - "acumulative delta max\n", - "Statistics_Tx:"); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "preamble:", - le32_to_cpu(tx->preamble_cnt), - accum_tx->preamble_cnt, - delta_tx->preamble_cnt, max_tx->preamble_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "rx_detected_cnt:", - le32_to_cpu(tx->rx_detected_cnt), - accum_tx->rx_detected_cnt, - delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "bt_prio_defer_cnt:", - le32_to_cpu(tx->bt_prio_defer_cnt), - accum_tx->bt_prio_defer_cnt, - delta_tx->bt_prio_defer_cnt, - max_tx->bt_prio_defer_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "bt_prio_kill_cnt:", - le32_to_cpu(tx->bt_prio_kill_cnt), - accum_tx->bt_prio_kill_cnt, - delta_tx->bt_prio_kill_cnt, - max_tx->bt_prio_kill_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "few_bytes_cnt:", - le32_to_cpu(tx->few_bytes_cnt), - accum_tx->few_bytes_cnt, - delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "cts_timeout:", - le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout, - delta_tx->cts_timeout, max_tx->cts_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "ack_timeout:", - le32_to_cpu(tx->ack_timeout), - accum_tx->ack_timeout, - delta_tx->ack_timeout, max_tx->ack_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "expected_ack_cnt:", - le32_to_cpu(tx->expected_ack_cnt), - accum_tx->expected_ack_cnt, - delta_tx->expected_ack_cnt, - max_tx->expected_ack_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "actual_ack_cnt:", - le32_to_cpu(tx->actual_ack_cnt), - accum_tx->actual_ack_cnt, - delta_tx->actual_ack_cnt, - max_tx->actual_ack_cnt); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -ssize_t iwl3945_ucode_general_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - int pos = 0; - char *buf; - int bufsz = sizeof(struct iwl39_statistics_general) * 10 + 300; - ssize_t ret; - struct iwl39_statistics_general *general, *accum_general; - struct iwl39_statistics_general *delta_general, *max_general; - struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg; - struct iwl39_statistics_div *div, *accum_div, *delta_div, *max_div; - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - /* - * The statistic information display here is based on - * the last statistics notification from uCode - * might not reflect the current uCode activity - */ - general = &priv->_3945.statistics.general; - dbg = &priv->_3945.statistics.general.dbg; - div = &priv->_3945.statistics.general.div; - accum_general = &priv->_3945.accum_statistics.general; - delta_general = &priv->_3945.delta_statistics.general; - max_general = &priv->_3945.max_delta.general; - accum_dbg = &priv->_3945.accum_statistics.general.dbg; - delta_dbg = &priv->_3945.delta_statistics.general.dbg; - max_dbg = &priv->_3945.max_delta.general.dbg; - accum_div = &priv->_3945.accum_statistics.general.div; - delta_div = &priv->_3945.delta_statistics.general.div; - max_div = &priv->_3945.max_delta.general.div; - pos += iwl3945_statistics_flag(priv, buf, bufsz); - pos += scnprintf(buf + pos, bufsz - pos, "%-32s current" - "acumulative delta max\n", - "Statistics_General:"); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "burst_check:", - le32_to_cpu(dbg->burst_check), - accum_dbg->burst_check, - delta_dbg->burst_check, max_dbg->burst_check); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "burst_count:", - le32_to_cpu(dbg->burst_count), - accum_dbg->burst_count, - delta_dbg->burst_count, max_dbg->burst_count); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "sleep_time:", - le32_to_cpu(general->sleep_time), - accum_general->sleep_time, - delta_general->sleep_time, max_general->sleep_time); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "slots_out:", - le32_to_cpu(general->slots_out), - accum_general->slots_out, - delta_general->slots_out, max_general->slots_out); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "slots_idle:", - le32_to_cpu(general->slots_idle), - accum_general->slots_idle, - delta_general->slots_idle, max_general->slots_idle); - pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n", - le32_to_cpu(general->ttl_timestamp)); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "tx_on_a:", - le32_to_cpu(div->tx_on_a), accum_div->tx_on_a, - delta_div->tx_on_a, max_div->tx_on_a); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "tx_on_b:", - le32_to_cpu(div->tx_on_b), accum_div->tx_on_b, - delta_div->tx_on_b, max_div->tx_on_b); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "exec_time:", - le32_to_cpu(div->exec_time), accum_div->exec_time, - delta_div->exec_time, max_div->exec_time); - pos += scnprintf(buf + pos, bufsz - pos, - " %-30s %10u %10u %10u %10u\n", - "probe_time:", - le32_to_cpu(div->probe_time), accum_div->probe_time, - delta_div->probe_time, max_div->probe_time); - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.h b/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.h deleted file mode 100644 index 8fef4b32b447..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.h +++ /dev/null @@ -1,60 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-debug.h" - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS -ssize_t iwl3945_ucode_rx_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos); -ssize_t iwl3945_ucode_tx_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos); -ssize_t iwl3945_ucode_general_stats_read(struct file *file, - char __user *user_buf, size_t count, - loff_t *ppos); -#else -static ssize_t iwl3945_ucode_rx_stats_read(struct file *file, - char __user *user_buf, size_t count, - loff_t *ppos) -{ - return 0; -} -static ssize_t iwl3945_ucode_tx_stats_read(struct file *file, - char __user *user_buf, size_t count, - loff_t *ppos) -{ - return 0; -} -static ssize_t iwl3945_ucode_general_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - return 0; -} -#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-fh.h b/drivers/net/wireless/iwlegacy/iwl-3945-fh.h deleted file mode 100644 index 836c9919f82e..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945-fh.h +++ /dev/null @@ -1,187 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -#ifndef __iwl_3945_fh_h__ -#define __iwl_3945_fh_h__ - -/************************************/ -/* iwl3945 Flow Handler Definitions */ -/************************************/ - -/** - * This I/O area is directly read/writable by driver (e.g. Linux uses writel()) - * Addresses are offsets from device's PCI hardware base address. - */ -#define FH39_MEM_LOWER_BOUND (0x0800) -#define FH39_MEM_UPPER_BOUND (0x1000) - -#define FH39_CBCC_TABLE (FH39_MEM_LOWER_BOUND + 0x140) -#define FH39_TFDB_TABLE (FH39_MEM_LOWER_BOUND + 0x180) -#define FH39_RCSR_TABLE (FH39_MEM_LOWER_BOUND + 0x400) -#define FH39_RSSR_TABLE (FH39_MEM_LOWER_BOUND + 0x4c0) -#define FH39_TCSR_TABLE (FH39_MEM_LOWER_BOUND + 0x500) -#define FH39_TSSR_TABLE (FH39_MEM_LOWER_BOUND + 0x680) - -/* TFDB (Transmit Frame Buffer Descriptor) */ -#define FH39_TFDB(_ch, buf) (FH39_TFDB_TABLE + \ - ((_ch) * 2 + (buf)) * 0x28) -#define FH39_TFDB_CHNL_BUF_CTRL_REG(_ch) (FH39_TFDB_TABLE + 0x50 * (_ch)) - -/* CBCC channel is [0,2] */ -#define FH39_CBCC(_ch) (FH39_CBCC_TABLE + (_ch) * 0x8) -#define FH39_CBCC_CTRL(_ch) (FH39_CBCC(_ch) + 0x00) -#define FH39_CBCC_BASE(_ch) (FH39_CBCC(_ch) + 0x04) - -/* RCSR channel is [0,2] */ -#define FH39_RCSR(_ch) (FH39_RCSR_TABLE + (_ch) * 0x40) -#define FH39_RCSR_CONFIG(_ch) (FH39_RCSR(_ch) + 0x00) -#define FH39_RCSR_RBD_BASE(_ch) (FH39_RCSR(_ch) + 0x04) -#define FH39_RCSR_WPTR(_ch) (FH39_RCSR(_ch) + 0x20) -#define FH39_RCSR_RPTR_ADDR(_ch) (FH39_RCSR(_ch) + 0x24) - -#define FH39_RSCSR_CHNL0_WPTR (FH39_RCSR_WPTR(0)) - -/* RSSR */ -#define FH39_RSSR_CTRL (FH39_RSSR_TABLE + 0x000) -#define FH39_RSSR_STATUS (FH39_RSSR_TABLE + 0x004) - -/* TCSR */ -#define FH39_TCSR(_ch) (FH39_TCSR_TABLE + (_ch) * 0x20) -#define FH39_TCSR_CONFIG(_ch) (FH39_TCSR(_ch) + 0x00) -#define FH39_TCSR_CREDIT(_ch) (FH39_TCSR(_ch) + 0x04) -#define FH39_TCSR_BUFF_STTS(_ch) (FH39_TCSR(_ch) + 0x08) - -/* TSSR */ -#define FH39_TSSR_CBB_BASE (FH39_TSSR_TABLE + 0x000) -#define FH39_TSSR_MSG_CONFIG (FH39_TSSR_TABLE + 0x008) -#define FH39_TSSR_TX_STATUS (FH39_TSSR_TABLE + 0x010) - - -/* DBM */ - -#define FH39_SRVC_CHNL (6) - -#define FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE (20) -#define FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH (4) - -#define FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN (0x08000000) - -#define FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE (0x80000000) - -#define FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE (0x20000000) - -#define FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 (0x01000000) - -#define FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST (0x00001000) - -#define FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH (0x00000000) - -#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000) -#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER (0x00000001) - -#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL (0x00000000) -#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL (0x00000008) - -#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000) - -#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000) - -#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000) -#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000) - -#define FH39_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00004000) - -#define FH39_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR (0x00000001) - -#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON (0xFF000000) -#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON (0x00FF0000) - -#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B (0x00000400) - -#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON (0x00000100) -#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON (0x00000080) - -#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH (0x00000020) -#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH (0x00000005) - -#define FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) (BIT(_ch) << 24) -#define FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch) (BIT(_ch) << 16) - -#define FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_ch) \ - (FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) | \ - FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch)) - -#define FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000) - -struct iwl3945_tfd_tb { - __le32 addr; - __le32 len; -} __packed; - -struct iwl3945_tfd { - __le32 control_flags; - struct iwl3945_tfd_tb tbs[4]; - u8 __pad[28]; -} __packed; - - -#endif /* __iwl_3945_fh_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-hw.h b/drivers/net/wireless/iwlegacy/iwl-3945-hw.h deleted file mode 100644 index 5c3a68d3af12..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945-hw.h +++ /dev/null @@ -1,291 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -/* - * Please use this file (iwl-3945-hw.h) only for hardware-related definitions. - * Please use iwl-commands.h for uCode API definitions. - * Please use iwl-3945.h for driver implementation definitions. - */ - -#ifndef __iwl_3945_hw__ -#define __iwl_3945_hw__ - -#include "iwl-eeprom.h" - -/* RSSI to dBm */ -#define IWL39_RSSI_OFFSET 95 - -/* - * EEPROM related constants, enums, and structures. - */ -#define EEPROM_SKU_CAP_OP_MODE_MRC (1 << 7) - -/* - * Mapping of a Tx power level, at factory calibration temperature, - * to a radio/DSP gain table index. - * One for each of 5 "sample" power levels in each band. - * v_det is measured at the factory, using the 3945's built-in power amplifier - * (PA) output voltage detector. This same detector is used during Tx of - * long packets in normal operation to provide feedback as to proper output - * level. - * Data copied from EEPROM. - * DO NOT ALTER THIS STRUCTURE!!! - */ -struct iwl3945_eeprom_txpower_sample { - u8 gain_index; /* index into power (gain) setup table ... */ - s8 power; /* ... for this pwr level for this chnl group */ - u16 v_det; /* PA output voltage */ -} __packed; - -/* - * Mappings of Tx power levels -> nominal radio/DSP gain table indexes. - * One for each channel group (a.k.a. "band") (1 for BG, 4 for A). - * Tx power setup code interpolates between the 5 "sample" power levels - * to determine the nominal setup for a requested power level. - * Data copied from EEPROM. - * DO NOT ALTER THIS STRUCTURE!!! - */ -struct iwl3945_eeprom_txpower_group { - struct iwl3945_eeprom_txpower_sample samples[5]; /* 5 power levels */ - s32 a, b, c, d, e; /* coefficients for voltage->power - * formula (signed) */ - s32 Fa, Fb, Fc, Fd, Fe; /* these modify coeffs based on - * frequency (signed) */ - s8 saturation_power; /* highest power possible by h/w in this - * band */ - u8 group_channel; /* "representative" channel # in this band */ - s16 temperature; /* h/w temperature at factory calib this band - * (signed) */ -} __packed; - -/* - * Temperature-based Tx-power compensation data, not band-specific. - * These coefficients are use to modify a/b/c/d/e coeffs based on - * difference between current temperature and factory calib temperature. - * Data copied from EEPROM. - */ -struct iwl3945_eeprom_temperature_corr { - u32 Ta; - u32 Tb; - u32 Tc; - u32 Td; - u32 Te; -} __packed; - -/* - * EEPROM map - */ -struct iwl3945_eeprom { - u8 reserved0[16]; - u16 device_id; /* abs.ofs: 16 */ - u8 reserved1[2]; - u16 pmc; /* abs.ofs: 20 */ - u8 reserved2[20]; - u8 mac_address[6]; /* abs.ofs: 42 */ - u8 reserved3[58]; - u16 board_revision; /* abs.ofs: 106 */ - u8 reserved4[11]; - u8 board_pba_number[9]; /* abs.ofs: 119 */ - u8 reserved5[8]; - u16 version; /* abs.ofs: 136 */ - u8 sku_cap; /* abs.ofs: 138 */ - u8 leds_mode; /* abs.ofs: 139 */ - u16 oem_mode; - u16 wowlan_mode; /* abs.ofs: 142 */ - u16 leds_time_interval; /* abs.ofs: 144 */ - u8 leds_off_time; /* abs.ofs: 146 */ - u8 leds_on_time; /* abs.ofs: 147 */ - u8 almgor_m_version; /* abs.ofs: 148 */ - u8 antenna_switch_type; /* abs.ofs: 149 */ - u8 reserved6[42]; - u8 sku_id[4]; /* abs.ofs: 192 */ - -/* - * Per-channel regulatory data. - * - * Each channel that *might* be supported by 3945 has a fixed location - * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory - * txpower (MSB). - * - * Entries immediately below are for 20 MHz channel width. - * - * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 - */ - u16 band_1_count; /* abs.ofs: 196 */ - struct iwl_eeprom_channel band_1_channels[14]; /* abs.ofs: 198 */ - -/* - * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196, - * 5.0 GHz channels 7, 8, 11, 12, 16 - * (4915-5080MHz) (none of these is ever supported) - */ - u16 band_2_count; /* abs.ofs: 226 */ - struct iwl_eeprom_channel band_2_channels[13]; /* abs.ofs: 228 */ - -/* - * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 - * (5170-5320MHz) - */ - u16 band_3_count; /* abs.ofs: 254 */ - struct iwl_eeprom_channel band_3_channels[12]; /* abs.ofs: 256 */ - -/* - * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 - * (5500-5700MHz) - */ - u16 band_4_count; /* abs.ofs: 280 */ - struct iwl_eeprom_channel band_4_channels[11]; /* abs.ofs: 282 */ - -/* - * 5.7 GHz channels 145, 149, 153, 157, 161, 165 - * (5725-5825MHz) - */ - u16 band_5_count; /* abs.ofs: 304 */ - struct iwl_eeprom_channel band_5_channels[6]; /* abs.ofs: 306 */ - - u8 reserved9[194]; - -/* - * 3945 Txpower calibration data. - */ -#define IWL_NUM_TX_CALIB_GROUPS 5 - struct iwl3945_eeprom_txpower_group groups[IWL_NUM_TX_CALIB_GROUPS]; -/* abs.ofs: 512 */ - struct iwl3945_eeprom_temperature_corr corrections; /* abs.ofs: 832 */ - u8 reserved16[172]; /* fill out to full 1024 byte block */ -} __packed; - -#define IWL3945_EEPROM_IMG_SIZE 1024 - -/* End of EEPROM */ - -#define PCI_CFG_REV_ID_BIT_BASIC_SKU (0x40) /* bit 6 */ -#define PCI_CFG_REV_ID_BIT_RTP (0x80) /* bit 7 */ - -/* 4 DATA + 1 CMD. There are 2 HCCA queues that are not used. */ -#define IWL39_NUM_QUEUES 5 -#define IWL39_CMD_QUEUE_NUM 4 - -#define IWL_DEFAULT_TX_RETRY 15 - -/*********************************************/ - -#define RFD_SIZE 4 -#define NUM_TFD_CHUNKS 4 - -#define RX_QUEUE_SIZE 256 -#define RX_QUEUE_MASK 255 -#define RX_QUEUE_SIZE_LOG 8 - -#define U32_PAD(n) ((4-(n))&0x3) - -#define TFD_CTL_COUNT_SET(n) (n << 24) -#define TFD_CTL_COUNT_GET(ctl) ((ctl >> 24) & 7) -#define TFD_CTL_PAD_SET(n) (n << 28) -#define TFD_CTL_PAD_GET(ctl) (ctl >> 28) - -/* Sizes and addresses for instruction and data memory (SRAM) in - * 3945's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */ -#define IWL39_RTC_INST_LOWER_BOUND (0x000000) -#define IWL39_RTC_INST_UPPER_BOUND (0x014000) - -#define IWL39_RTC_DATA_LOWER_BOUND (0x800000) -#define IWL39_RTC_DATA_UPPER_BOUND (0x808000) - -#define IWL39_RTC_INST_SIZE (IWL39_RTC_INST_UPPER_BOUND - \ - IWL39_RTC_INST_LOWER_BOUND) -#define IWL39_RTC_DATA_SIZE (IWL39_RTC_DATA_UPPER_BOUND - \ - IWL39_RTC_DATA_LOWER_BOUND) - -#define IWL39_MAX_INST_SIZE IWL39_RTC_INST_SIZE -#define IWL39_MAX_DATA_SIZE IWL39_RTC_DATA_SIZE - -/* Size of uCode instruction memory in bootstrap state machine */ -#define IWL39_MAX_BSM_SIZE IWL39_RTC_INST_SIZE - -static inline int iwl3945_hw_valid_rtc_data_addr(u32 addr) -{ - return (addr >= IWL39_RTC_DATA_LOWER_BOUND) && - (addr < IWL39_RTC_DATA_UPPER_BOUND); -} - -/* Base physical address of iwl3945_shared is provided to FH_TSSR_CBB_BASE - * and &iwl3945_shared.rx_read_ptr[0] is provided to FH_RCSR_RPTR_ADDR(0) */ -struct iwl3945_shared { - __le32 tx_base_ptr[8]; -} __packed; - -static inline u8 iwl3945_hw_get_rate(__le16 rate_n_flags) -{ - return le16_to_cpu(rate_n_flags) & 0xFF; -} - -static inline u16 iwl3945_hw_get_rate_n_flags(__le16 rate_n_flags) -{ - return le16_to_cpu(rate_n_flags); -} - -static inline __le16 iwl3945_hw_set_rate_n_flags(u8 rate, u16 flags) -{ - return cpu_to_le16((u16)rate|flags); -} -#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-led.c b/drivers/net/wireless/iwlegacy/iwl-3945-led.c deleted file mode 100644 index 7a7f0f38c8ab..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945-led.c +++ /dev/null @@ -1,63 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <net/mac80211.h> -#include <linux/etherdevice.h> -#include <asm/unaligned.h> - -#include "iwl-commands.h" -#include "iwl-3945.h" -#include "iwl-core.h" -#include "iwl-dev.h" -#include "iwl-3945-led.h" - - -/* Send led command */ -static int iwl3945_send_led_cmd(struct iwl_priv *priv, - struct iwl_led_cmd *led_cmd) -{ - struct iwl_host_cmd cmd = { - .id = REPLY_LEDS_CMD, - .len = sizeof(struct iwl_led_cmd), - .data = led_cmd, - .flags = CMD_ASYNC, - .callback = NULL, - }; - - return iwl_legacy_send_cmd(priv, &cmd); -} - -const struct iwl_led_ops iwl3945_led_ops = { - .cmd = iwl3945_send_led_cmd, -}; diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-led.h b/drivers/net/wireless/iwlegacy/iwl-3945-led.h deleted file mode 100644 index 96716276eb0d..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945-led.h +++ /dev/null @@ -1,32 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __iwl_3945_led_h__ -#define __iwl_3945_led_h__ - -extern const struct iwl_led_ops iwl3945_led_ops; - -#endif /* __iwl_3945_led_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-rs.c b/drivers/net/wireless/iwlegacy/iwl-3945-rs.c deleted file mode 100644 index 8faeaf2dddec..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945-rs.c +++ /dev/null @@ -1,996 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/skbuff.h> -#include <linux/slab.h> -#include <net/mac80211.h> - -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/delay.h> - -#include <linux/workqueue.h> - -#include "iwl-commands.h" -#include "iwl-3945.h" -#include "iwl-sta.h" - -#define RS_NAME "iwl-3945-rs" - -static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT_3945] = { - 7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202 -}; - -static s32 iwl3945_expected_tpt_g_prot[IWL_RATE_COUNT_3945] = { - 7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125 -}; - -static s32 iwl3945_expected_tpt_a[IWL_RATE_COUNT_3945] = { - 0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186 -}; - -static s32 iwl3945_expected_tpt_b[IWL_RATE_COUNT_3945] = { - 7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0 -}; - -struct iwl3945_tpt_entry { - s8 min_rssi; - u8 index; -}; - -static struct iwl3945_tpt_entry iwl3945_tpt_table_a[] = { - {-60, IWL_RATE_54M_INDEX}, - {-64, IWL_RATE_48M_INDEX}, - {-72, IWL_RATE_36M_INDEX}, - {-80, IWL_RATE_24M_INDEX}, - {-84, IWL_RATE_18M_INDEX}, - {-85, IWL_RATE_12M_INDEX}, - {-87, IWL_RATE_9M_INDEX}, - {-89, IWL_RATE_6M_INDEX} -}; - -static struct iwl3945_tpt_entry iwl3945_tpt_table_g[] = { - {-60, IWL_RATE_54M_INDEX}, - {-64, IWL_RATE_48M_INDEX}, - {-68, IWL_RATE_36M_INDEX}, - {-80, IWL_RATE_24M_INDEX}, - {-84, IWL_RATE_18M_INDEX}, - {-85, IWL_RATE_12M_INDEX}, - {-86, IWL_RATE_11M_INDEX}, - {-88, IWL_RATE_5M_INDEX}, - {-90, IWL_RATE_2M_INDEX}, - {-92, IWL_RATE_1M_INDEX} -}; - -#define IWL_RATE_MAX_WINDOW 62 -#define IWL_RATE_FLUSH (3*HZ) -#define IWL_RATE_WIN_FLUSH (HZ/2) -#define IWL39_RATE_HIGH_TH 11520 -#define IWL_SUCCESS_UP_TH 8960 -#define IWL_SUCCESS_DOWN_TH 10880 -#define IWL_RATE_MIN_FAILURE_TH 6 -#define IWL_RATE_MIN_SUCCESS_TH 8 -#define IWL_RATE_DECREASE_TH 1920 -#define IWL_RATE_RETRY_TH 15 - -static u8 iwl3945_get_rate_index_by_rssi(s32 rssi, enum ieee80211_band band) -{ - u32 index = 0; - u32 table_size = 0; - struct iwl3945_tpt_entry *tpt_table = NULL; - - if ((rssi < IWL_MIN_RSSI_VAL) || (rssi > IWL_MAX_RSSI_VAL)) - rssi = IWL_MIN_RSSI_VAL; - - switch (band) { - case IEEE80211_BAND_2GHZ: - tpt_table = iwl3945_tpt_table_g; - table_size = ARRAY_SIZE(iwl3945_tpt_table_g); - break; - - case IEEE80211_BAND_5GHZ: - tpt_table = iwl3945_tpt_table_a; - table_size = ARRAY_SIZE(iwl3945_tpt_table_a); - break; - - default: - BUG(); - break; - } - - while ((index < table_size) && (rssi < tpt_table[index].min_rssi)) - index++; - - index = min(index, (table_size - 1)); - - return tpt_table[index].index; -} - -static void iwl3945_clear_window(struct iwl3945_rate_scale_data *window) -{ - window->data = 0; - window->success_counter = 0; - window->success_ratio = -1; - window->counter = 0; - window->average_tpt = IWL_INVALID_VALUE; - window->stamp = 0; -} - -/** - * iwl3945_rate_scale_flush_windows - flush out the rate scale windows - * - * Returns the number of windows that have gathered data but were - * not flushed. If there were any that were not flushed, then - * reschedule the rate flushing routine. - */ -static int iwl3945_rate_scale_flush_windows(struct iwl3945_rs_sta *rs_sta) -{ - int unflushed = 0; - int i; - unsigned long flags; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; - - /* - * For each rate, if we have collected data on that rate - * and it has been more than IWL_RATE_WIN_FLUSH - * since we flushed, clear out the gathered statistics - */ - for (i = 0; i < IWL_RATE_COUNT_3945; i++) { - if (!rs_sta->win[i].counter) - continue; - - spin_lock_irqsave(&rs_sta->lock, flags); - if (time_after(jiffies, rs_sta->win[i].stamp + - IWL_RATE_WIN_FLUSH)) { - IWL_DEBUG_RATE(priv, "flushing %d samples of rate " - "index %d\n", - rs_sta->win[i].counter, i); - iwl3945_clear_window(&rs_sta->win[i]); - } else - unflushed++; - spin_unlock_irqrestore(&rs_sta->lock, flags); - } - - return unflushed; -} - -#define IWL_RATE_FLUSH_MAX 5000 /* msec */ -#define IWL_RATE_FLUSH_MIN 50 /* msec */ -#define IWL_AVERAGE_PACKETS 1500 - -static void iwl3945_bg_rate_scale_flush(unsigned long data) -{ - struct iwl3945_rs_sta *rs_sta = (void *)data; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; - int unflushed = 0; - unsigned long flags; - u32 packet_count, duration, pps; - - IWL_DEBUG_RATE(priv, "enter\n"); - - unflushed = iwl3945_rate_scale_flush_windows(rs_sta); - - spin_lock_irqsave(&rs_sta->lock, flags); - - /* Number of packets Rx'd since last time this timer ran */ - packet_count = (rs_sta->tx_packets - rs_sta->last_tx_packets) + 1; - - rs_sta->last_tx_packets = rs_sta->tx_packets + 1; - - if (unflushed) { - duration = - jiffies_to_msecs(jiffies - rs_sta->last_partial_flush); - - IWL_DEBUG_RATE(priv, "Tx'd %d packets in %dms\n", - packet_count, duration); - - /* Determine packets per second */ - if (duration) - pps = (packet_count * 1000) / duration; - else - pps = 0; - - if (pps) { - duration = (IWL_AVERAGE_PACKETS * 1000) / pps; - if (duration < IWL_RATE_FLUSH_MIN) - duration = IWL_RATE_FLUSH_MIN; - else if (duration > IWL_RATE_FLUSH_MAX) - duration = IWL_RATE_FLUSH_MAX; - } else - duration = IWL_RATE_FLUSH_MAX; - - rs_sta->flush_time = msecs_to_jiffies(duration); - - IWL_DEBUG_RATE(priv, "new flush period: %d msec ave %d\n", - duration, packet_count); - - mod_timer(&rs_sta->rate_scale_flush, jiffies + - rs_sta->flush_time); - - rs_sta->last_partial_flush = jiffies; - } else { - rs_sta->flush_time = IWL_RATE_FLUSH; - rs_sta->flush_pending = 0; - } - /* If there weren't any unflushed entries, we don't schedule the timer - * to run again */ - - rs_sta->last_flush = jiffies; - - spin_unlock_irqrestore(&rs_sta->lock, flags); - - IWL_DEBUG_RATE(priv, "leave\n"); -} - -/** - * iwl3945_collect_tx_data - Update the success/failure sliding window - * - * We keep a sliding window of the last 64 packets transmitted - * at this rate. window->data contains the bitmask of successful - * packets. - */ -static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta, - struct iwl3945_rate_scale_data *window, - int success, int retries, int index) -{ - unsigned long flags; - s32 fail_count; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; - - if (!retries) { - IWL_DEBUG_RATE(priv, "leave: retries == 0 -- should be at least 1\n"); - return; - } - - spin_lock_irqsave(&rs_sta->lock, flags); - - /* - * Keep track of only the latest 62 tx frame attempts in this rate's - * history window; anything older isn't really relevant any more. - * If we have filled up the sliding window, drop the oldest attempt; - * if the oldest attempt (highest bit in bitmap) shows "success", - * subtract "1" from the success counter (this is the main reason - * we keep these bitmaps!). - * */ - while (retries > 0) { - if (window->counter >= IWL_RATE_MAX_WINDOW) { - - /* remove earliest */ - window->counter = IWL_RATE_MAX_WINDOW - 1; - - if (window->data & (1ULL << (IWL_RATE_MAX_WINDOW - 1))) { - window->data &= ~(1ULL << (IWL_RATE_MAX_WINDOW - 1)); - window->success_counter--; - } - } - - /* Increment frames-attempted counter */ - window->counter++; - - /* Shift bitmap by one frame (throw away oldest history), - * OR in "1", and increment "success" if this - * frame was successful. */ - window->data <<= 1; - if (success > 0) { - window->success_counter++; - window->data |= 0x1; - success--; - } - - retries--; - } - - /* Calculate current success ratio, avoid divide-by-0! */ - if (window->counter > 0) - window->success_ratio = 128 * (100 * window->success_counter) - / window->counter; - else - window->success_ratio = IWL_INVALID_VALUE; - - fail_count = window->counter - window->success_counter; - - /* Calculate average throughput, if we have enough history. */ - if ((fail_count >= IWL_RATE_MIN_FAILURE_TH) || - (window->success_counter >= IWL_RATE_MIN_SUCCESS_TH)) - window->average_tpt = ((window->success_ratio * - rs_sta->expected_tpt[index] + 64) / 128); - else - window->average_tpt = IWL_INVALID_VALUE; - - /* Tag this window as having been updated */ - window->stamp = jiffies; - - spin_unlock_irqrestore(&rs_sta->lock, flags); - -} - -/* - * Called after adding a new station to initialize rate scaling - */ -void iwl3945_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_id) -{ - struct ieee80211_hw *hw = priv->hw; - struct ieee80211_conf *conf = &priv->hw->conf; - struct iwl3945_sta_priv *psta; - struct iwl3945_rs_sta *rs_sta; - struct ieee80211_supported_band *sband; - int i; - - IWL_DEBUG_INFO(priv, "enter\n"); - if (sta_id == priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id) - goto out; - - psta = (struct iwl3945_sta_priv *) sta->drv_priv; - rs_sta = &psta->rs_sta; - sband = hw->wiphy->bands[conf->channel->band]; - - rs_sta->priv = priv; - - rs_sta->start_rate = IWL_RATE_INVALID; - - /* default to just 802.11b */ - rs_sta->expected_tpt = iwl3945_expected_tpt_b; - - rs_sta->last_partial_flush = jiffies; - rs_sta->last_flush = jiffies; - rs_sta->flush_time = IWL_RATE_FLUSH; - rs_sta->last_tx_packets = 0; - - rs_sta->rate_scale_flush.data = (unsigned long)rs_sta; - rs_sta->rate_scale_flush.function = iwl3945_bg_rate_scale_flush; - - for (i = 0; i < IWL_RATE_COUNT_3945; i++) - iwl3945_clear_window(&rs_sta->win[i]); - - /* TODO: what is a good starting rate for STA? About middle? Maybe not - * the lowest or the highest rate.. Could consider using RSSI from - * previous packets? Need to have IEEE 802.1X auth succeed immediately - * after assoc.. */ - - for (i = sband->n_bitrates - 1; i >= 0; i--) { - if (sta->supp_rates[sband->band] & (1 << i)) { - rs_sta->last_txrate_idx = i; - break; - } - } - - priv->_3945.sta_supp_rates = sta->supp_rates[sband->band]; - /* For 5 GHz band it start at IWL_FIRST_OFDM_RATE */ - if (sband->band == IEEE80211_BAND_5GHZ) { - rs_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE; - priv->_3945.sta_supp_rates = priv->_3945.sta_supp_rates << - IWL_FIRST_OFDM_RATE; - } - -out: - priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS; - - IWL_DEBUG_INFO(priv, "leave\n"); -} - -static void *iwl3945_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) -{ - return hw->priv; -} - -/* rate scale requires free function to be implemented */ -static void iwl3945_rs_free(void *priv) -{ - return; -} - -static void *iwl3945_rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp) -{ - struct iwl3945_rs_sta *rs_sta; - struct iwl3945_sta_priv *psta = (void *) sta->drv_priv; - struct iwl_priv *priv __maybe_unused = iwl_priv; - - IWL_DEBUG_RATE(priv, "enter\n"); - - rs_sta = &psta->rs_sta; - - spin_lock_init(&rs_sta->lock); - init_timer(&rs_sta->rate_scale_flush); - - IWL_DEBUG_RATE(priv, "leave\n"); - - return rs_sta; -} - -static void iwl3945_rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta, - void *priv_sta) -{ - struct iwl3945_rs_sta *rs_sta = priv_sta; - - /* - * Be careful not to use any members of iwl3945_rs_sta (like trying - * to use iwl_priv to print out debugging) since it may not be fully - * initialized at this point. - */ - del_timer_sync(&rs_sta->rate_scale_flush); -} - - -/** - * iwl3945_rs_tx_status - Update rate control values based on Tx results - * - * NOTE: Uses iwl_priv->retry_rate for the # of retries attempted by - * the hardware for each rate. - */ -static void iwl3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb) -{ - s8 retries = 0, current_count; - int scale_rate_index, first_index, last_index; - unsigned long flags; - struct iwl_priv *priv = (struct iwl_priv *)priv_rate; - struct iwl3945_rs_sta *rs_sta = priv_sta; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - - IWL_DEBUG_RATE(priv, "enter\n"); - - retries = info->status.rates[0].count; - /* Sanity Check for retries */ - if (retries > IWL_RATE_RETRY_TH) - retries = IWL_RATE_RETRY_TH; - - first_index = sband->bitrates[info->status.rates[0].idx].hw_value; - if ((first_index < 0) || (first_index >= IWL_RATE_COUNT_3945)) { - IWL_DEBUG_RATE(priv, "leave: Rate out of bounds: %d\n", first_index); - return; - } - - if (!priv_sta) { - IWL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n"); - return; - } - - /* Treat uninitialized rate scaling data same as non-existing. */ - if (!rs_sta->priv) { - IWL_DEBUG_RATE(priv, "leave: STA priv data uninitialized!\n"); - return; - } - - - rs_sta->tx_packets++; - - scale_rate_index = first_index; - last_index = first_index; - - /* - * Update the window for each rate. We determine which rates - * were Tx'd based on the total number of retries vs. the number - * of retries configured for each rate -- currently set to the - * priv value 'retry_rate' vs. rate specific - * - * On exit from this while loop last_index indicates the rate - * at which the frame was finally transmitted (or failed if no - * ACK) - */ - while (retries > 1) { - if ((retries - 1) < priv->retry_rate) { - current_count = (retries - 1); - last_index = scale_rate_index; - } else { - current_count = priv->retry_rate; - last_index = iwl3945_rs_next_rate(priv, - scale_rate_index); - } - - /* Update this rate accounting for as many retries - * as was used for it (per current_count) */ - iwl3945_collect_tx_data(rs_sta, - &rs_sta->win[scale_rate_index], - 0, current_count, scale_rate_index); - IWL_DEBUG_RATE(priv, "Update rate %d for %d retries.\n", - scale_rate_index, current_count); - - retries -= current_count; - - scale_rate_index = last_index; - } - - - /* Update the last index window with success/failure based on ACK */ - IWL_DEBUG_RATE(priv, "Update rate %d with %s.\n", - last_index, - (info->flags & IEEE80211_TX_STAT_ACK) ? - "success" : "failure"); - iwl3945_collect_tx_data(rs_sta, - &rs_sta->win[last_index], - info->flags & IEEE80211_TX_STAT_ACK, 1, last_index); - - /* We updated the rate scale window -- if its been more than - * flush_time since the last run, schedule the flush - * again */ - spin_lock_irqsave(&rs_sta->lock, flags); - - if (!rs_sta->flush_pending && - time_after(jiffies, rs_sta->last_flush + - rs_sta->flush_time)) { - - rs_sta->last_partial_flush = jiffies; - rs_sta->flush_pending = 1; - mod_timer(&rs_sta->rate_scale_flush, - jiffies + rs_sta->flush_time); - } - - spin_unlock_irqrestore(&rs_sta->lock, flags); - - IWL_DEBUG_RATE(priv, "leave\n"); -} - -static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta, - u8 index, u16 rate_mask, enum ieee80211_band band) -{ - u8 high = IWL_RATE_INVALID; - u8 low = IWL_RATE_INVALID; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; - - /* 802.11A walks to the next literal adjacent rate in - * the rate table */ - if (unlikely(band == IEEE80211_BAND_5GHZ)) { - int i; - u32 mask; - - /* Find the previous rate that is in the rate mask */ - i = index - 1; - for (mask = (1 << i); i >= 0; i--, mask >>= 1) { - if (rate_mask & mask) { - low = i; - break; - } - } - - /* Find the next rate that is in the rate mask */ - i = index + 1; - for (mask = (1 << i); i < IWL_RATE_COUNT_3945; - i++, mask <<= 1) { - if (rate_mask & mask) { - high = i; - break; - } - } - - return (high << 8) | low; - } - - low = index; - while (low != IWL_RATE_INVALID) { - if (rs_sta->tgg) - low = iwl3945_rates[low].prev_rs_tgg; - else - low = iwl3945_rates[low].prev_rs; - if (low == IWL_RATE_INVALID) - break; - if (rate_mask & (1 << low)) - break; - IWL_DEBUG_RATE(priv, "Skipping masked lower rate: %d\n", low); - } - - high = index; - while (high != IWL_RATE_INVALID) { - if (rs_sta->tgg) - high = iwl3945_rates[high].next_rs_tgg; - else - high = iwl3945_rates[high].next_rs; - if (high == IWL_RATE_INVALID) - break; - if (rate_mask & (1 << high)) - break; - IWL_DEBUG_RATE(priv, "Skipping masked higher rate: %d\n", high); - } - - return (high << 8) | low; -} - -/** - * iwl3945_rs_get_rate - find the rate for the requested packet - * - * Returns the ieee80211_rate structure allocated by the driver. - * - * The rate control algorithm has no internal mapping between hw_mode's - * rate ordering and the rate ordering used by the rate control algorithm. - * - * The rate control algorithm uses a single table of rates that goes across - * the entire A/B/G spectrum vs. being limited to just one particular - * hw_mode. - * - * As such, we can't convert the index obtained below into the hw_mode's - * rate table and must reference the driver allocated rate table - * - */ -static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, - void *priv_sta, struct ieee80211_tx_rate_control *txrc) -{ - struct ieee80211_supported_band *sband = txrc->sband; - struct sk_buff *skb = txrc->skb; - u8 low = IWL_RATE_INVALID; - u8 high = IWL_RATE_INVALID; - u16 high_low; - int index; - struct iwl3945_rs_sta *rs_sta = priv_sta; - struct iwl3945_rate_scale_data *window = NULL; - int current_tpt = IWL_INVALID_VALUE; - int low_tpt = IWL_INVALID_VALUE; - int high_tpt = IWL_INVALID_VALUE; - u32 fail_count; - s8 scale_action = 0; - unsigned long flags; - u16 rate_mask; - s8 max_rate_idx = -1; - struct iwl_priv *priv __maybe_unused = (struct iwl_priv *)priv_r; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - - IWL_DEBUG_RATE(priv, "enter\n"); - - /* Treat uninitialized rate scaling data same as non-existing. */ - if (rs_sta && !rs_sta->priv) { - IWL_DEBUG_RATE(priv, "Rate scaling information not initialized yet.\n"); - priv_sta = NULL; - } - - if (rate_control_send_low(sta, priv_sta, txrc)) - return; - - rate_mask = sta->supp_rates[sband->band]; - - /* get user max rate if set */ - max_rate_idx = txrc->max_rate_idx; - if ((sband->band == IEEE80211_BAND_5GHZ) && (max_rate_idx != -1)) - max_rate_idx += IWL_FIRST_OFDM_RATE; - if ((max_rate_idx < 0) || (max_rate_idx >= IWL_RATE_COUNT)) - max_rate_idx = -1; - - index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT_3945 - 1); - - if (sband->band == IEEE80211_BAND_5GHZ) - rate_mask = rate_mask << IWL_FIRST_OFDM_RATE; - - spin_lock_irqsave(&rs_sta->lock, flags); - - /* for recent assoc, choose best rate regarding - * to rssi value - */ - if (rs_sta->start_rate != IWL_RATE_INVALID) { - if (rs_sta->start_rate < index && - (rate_mask & (1 << rs_sta->start_rate))) - index = rs_sta->start_rate; - rs_sta->start_rate = IWL_RATE_INVALID; - } - - /* force user max rate if set by user */ - if ((max_rate_idx != -1) && (max_rate_idx < index)) { - if (rate_mask & (1 << max_rate_idx)) - index = max_rate_idx; - } - - window = &(rs_sta->win[index]); - - fail_count = window->counter - window->success_counter; - - if (((fail_count < IWL_RATE_MIN_FAILURE_TH) && - (window->success_counter < IWL_RATE_MIN_SUCCESS_TH))) { - spin_unlock_irqrestore(&rs_sta->lock, flags); - - IWL_DEBUG_RATE(priv, "Invalid average_tpt on rate %d: " - "counter: %d, success_counter: %d, " - "expected_tpt is %sNULL\n", - index, - window->counter, - window->success_counter, - rs_sta->expected_tpt ? "not " : ""); - - /* Can't calculate this yet; not enough history */ - window->average_tpt = IWL_INVALID_VALUE; - goto out; - - } - - current_tpt = window->average_tpt; - - high_low = iwl3945_get_adjacent_rate(rs_sta, index, rate_mask, - sband->band); - low = high_low & 0xff; - high = (high_low >> 8) & 0xff; - - /* If user set max rate, dont allow higher than user constrain */ - if ((max_rate_idx != -1) && (max_rate_idx < high)) - high = IWL_RATE_INVALID; - - /* Collect Measured throughputs of adjacent rates */ - if (low != IWL_RATE_INVALID) - low_tpt = rs_sta->win[low].average_tpt; - - if (high != IWL_RATE_INVALID) - high_tpt = rs_sta->win[high].average_tpt; - - spin_unlock_irqrestore(&rs_sta->lock, flags); - - scale_action = 0; - - /* Low success ratio , need to drop the rate */ - if ((window->success_ratio < IWL_RATE_DECREASE_TH) || !current_tpt) { - IWL_DEBUG_RATE(priv, "decrease rate because of low success_ratio\n"); - scale_action = -1; - /* No throughput measured yet for adjacent rates, - * try increase */ - } else if ((low_tpt == IWL_INVALID_VALUE) && - (high_tpt == IWL_INVALID_VALUE)) { - - if (high != IWL_RATE_INVALID && window->success_ratio >= IWL_RATE_INCREASE_TH) - scale_action = 1; - else if (low != IWL_RATE_INVALID) - scale_action = 0; - - /* Both adjacent throughputs are measured, but neither one has - * better throughput; we're using the best rate, don't change - * it! */ - } else if ((low_tpt != IWL_INVALID_VALUE) && - (high_tpt != IWL_INVALID_VALUE) && - (low_tpt < current_tpt) && (high_tpt < current_tpt)) { - - IWL_DEBUG_RATE(priv, "No action -- low [%d] & high [%d] < " - "current_tpt [%d]\n", - low_tpt, high_tpt, current_tpt); - scale_action = 0; - - /* At least one of the rates has better throughput */ - } else { - if (high_tpt != IWL_INVALID_VALUE) { - - /* High rate has better throughput, Increase - * rate */ - if (high_tpt > current_tpt && - window->success_ratio >= IWL_RATE_INCREASE_TH) - scale_action = 1; - else { - IWL_DEBUG_RATE(priv, - "decrease rate because of high tpt\n"); - scale_action = 0; - } - } else if (low_tpt != IWL_INVALID_VALUE) { - if (low_tpt > current_tpt) { - IWL_DEBUG_RATE(priv, - "decrease rate because of low tpt\n"); - scale_action = -1; - } else if (window->success_ratio >= IWL_RATE_INCREASE_TH) { - /* Lower rate has better - * throughput,decrease rate */ - scale_action = 1; - } - } - } - - /* Sanity check; asked for decrease, but success rate or throughput - * has been good at old rate. Don't change it. */ - if ((scale_action == -1) && (low != IWL_RATE_INVALID) && - ((window->success_ratio > IWL_RATE_HIGH_TH) || - (current_tpt > (100 * rs_sta->expected_tpt[low])))) - scale_action = 0; - - switch (scale_action) { - case -1: - - /* Decrese rate */ - if (low != IWL_RATE_INVALID) - index = low; - break; - - case 1: - /* Increase rate */ - if (high != IWL_RATE_INVALID) - index = high; - - break; - - case 0: - default: - /* No change */ - break; - } - - IWL_DEBUG_RATE(priv, "Selected %d (action %d) - low %d high %d\n", - index, scale_action, low, high); - - out: - - if (sband->band == IEEE80211_BAND_5GHZ) { - if (WARN_ON_ONCE(index < IWL_FIRST_OFDM_RATE)) - index = IWL_FIRST_OFDM_RATE; - rs_sta->last_txrate_idx = index; - info->control.rates[0].idx = index - IWL_FIRST_OFDM_RATE; - } else { - rs_sta->last_txrate_idx = index; - info->control.rates[0].idx = rs_sta->last_txrate_idx; - } - - IWL_DEBUG_RATE(priv, "leave: %d\n", index); -} - -#ifdef CONFIG_MAC80211_DEBUGFS -static int iwl3945_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - -static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - char *buff; - int desc = 0; - int j; - ssize_t ret; - struct iwl3945_rs_sta *lq_sta = file->private_data; - - buff = kmalloc(1024, GFP_KERNEL); - if (!buff) - return -ENOMEM; - - desc += sprintf(buff + desc, "tx packets=%d last rate index=%d\n" - "rate=0x%X flush time %d\n", - lq_sta->tx_packets, - lq_sta->last_txrate_idx, - lq_sta->start_rate, jiffies_to_msecs(lq_sta->flush_time)); - for (j = 0; j < IWL_RATE_COUNT_3945; j++) { - desc += sprintf(buff+desc, - "counter=%d success=%d %%=%d\n", - lq_sta->win[j].counter, - lq_sta->win[j].success_counter, - lq_sta->win[j].success_ratio); - } - ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); - kfree(buff); - return ret; -} - -static const struct file_operations rs_sta_dbgfs_stats_table_ops = { - .read = iwl3945_sta_dbgfs_stats_table_read, - .open = iwl3945_open_file_generic, - .llseek = default_llseek, -}; - -static void iwl3945_add_debugfs(void *priv, void *priv_sta, - struct dentry *dir) -{ - struct iwl3945_rs_sta *lq_sta = priv_sta; - - lq_sta->rs_sta_dbgfs_stats_table_file = - debugfs_create_file("rate_stats_table", 0600, dir, - lq_sta, &rs_sta_dbgfs_stats_table_ops); - -} - -static void iwl3945_remove_debugfs(void *priv, void *priv_sta) -{ - struct iwl3945_rs_sta *lq_sta = priv_sta; - debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); -} -#endif - -/* - * Initialization of rate scaling information is done by driver after - * the station is added. Since mac80211 calls this function before a - * station is added we ignore it. - */ -static void iwl3945_rs_rate_init_stub(void *priv_r, - struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta) -{ -} - -static struct rate_control_ops rs_ops = { - .module = NULL, - .name = RS_NAME, - .tx_status = iwl3945_rs_tx_status, - .get_rate = iwl3945_rs_get_rate, - .rate_init = iwl3945_rs_rate_init_stub, - .alloc = iwl3945_rs_alloc, - .free = iwl3945_rs_free, - .alloc_sta = iwl3945_rs_alloc_sta, - .free_sta = iwl3945_rs_free_sta, -#ifdef CONFIG_MAC80211_DEBUGFS - .add_sta_debugfs = iwl3945_add_debugfs, - .remove_sta_debugfs = iwl3945_remove_debugfs, -#endif - -}; -void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) -{ - struct iwl_priv *priv = hw->priv; - s32 rssi = 0; - unsigned long flags; - struct iwl3945_rs_sta *rs_sta; - struct ieee80211_sta *sta; - struct iwl3945_sta_priv *psta; - - IWL_DEBUG_RATE(priv, "enter\n"); - - rcu_read_lock(); - - sta = ieee80211_find_sta(priv->contexts[IWL_RXON_CTX_BSS].vif, - priv->stations[sta_id].sta.sta.addr); - if (!sta) { - IWL_DEBUG_RATE(priv, "Unable to find station to initialize rate scaling.\n"); - rcu_read_unlock(); - return; - } - - psta = (void *) sta->drv_priv; - rs_sta = &psta->rs_sta; - - spin_lock_irqsave(&rs_sta->lock, flags); - - rs_sta->tgg = 0; - switch (priv->band) { - case IEEE80211_BAND_2GHZ: - /* TODO: this always does G, not a regression */ - if (priv->contexts[IWL_RXON_CTX_BSS].active.flags & - RXON_FLG_TGG_PROTECT_MSK) { - rs_sta->tgg = 1; - rs_sta->expected_tpt = iwl3945_expected_tpt_g_prot; - } else - rs_sta->expected_tpt = iwl3945_expected_tpt_g; - break; - - case IEEE80211_BAND_5GHZ: - rs_sta->expected_tpt = iwl3945_expected_tpt_a; - break; - case IEEE80211_NUM_BANDS: - BUG(); - break; - } - - spin_unlock_irqrestore(&rs_sta->lock, flags); - - rssi = priv->_3945.last_rx_rssi; - if (rssi == 0) - rssi = IWL_MIN_RSSI_VAL; - - IWL_DEBUG_RATE(priv, "Network RSSI: %d\n", rssi); - - rs_sta->start_rate = iwl3945_get_rate_index_by_rssi(rssi, priv->band); - - IWL_DEBUG_RATE(priv, "leave: rssi %d assign rate index: " - "%d (plcp 0x%x)\n", rssi, rs_sta->start_rate, - iwl3945_rates[rs_sta->start_rate].plcp); - rcu_read_unlock(); -} - -int iwl3945_rate_control_register(void) -{ - return ieee80211_rate_control_register(&rs_ops); -} - -void iwl3945_rate_control_unregister(void) -{ - ieee80211_rate_control_unregister(&rs_ops); -} diff --git a/drivers/net/wireless/iwlegacy/iwl-3945.c b/drivers/net/wireless/iwlegacy/iwl-3945.c deleted file mode 100644 index f7c0a7438476..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945.c +++ /dev/null @@ -1,2741 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/firmware.h> -#include <linux/etherdevice.h> -#include <asm/unaligned.h> -#include <net/mac80211.h> - -#include "iwl-fh.h" -#include "iwl-3945-fh.h" -#include "iwl-commands.h" -#include "iwl-sta.h" -#include "iwl-3945.h" -#include "iwl-eeprom.h" -#include "iwl-core.h" -#include "iwl-helpers.h" -#include "iwl-led.h" -#include "iwl-3945-led.h" -#include "iwl-3945-debugfs.h" - -#define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \ - [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ - IWL_RATE_##r##M_IEEE, \ - IWL_RATE_##ip##M_INDEX, \ - IWL_RATE_##in##M_INDEX, \ - IWL_RATE_##rp##M_INDEX, \ - IWL_RATE_##rn##M_INDEX, \ - IWL_RATE_##pp##M_INDEX, \ - IWL_RATE_##np##M_INDEX, \ - IWL_RATE_##r##M_INDEX_TABLE, \ - IWL_RATE_##ip##M_INDEX_TABLE } - -/* - * Parameter order: - * rate, prev rate, next rate, prev tgg rate, next tgg rate - * - * If there isn't a valid next or previous rate then INV is used which - * maps to IWL_RATE_INVALID - * - */ -const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945] = { - IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */ - IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */ - IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */ - IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */ - IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */ - IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */ - IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */ - IWL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */ - IWL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */ - IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */ - IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */ - IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */ -}; - -static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index) -{ - u8 rate = iwl3945_rates[rate_index].prev_ieee; - - if (rate == IWL_RATE_INVALID) - rate = rate_index; - return rate; -} - -/* 1 = enable the iwl3945_disable_events() function */ -#define IWL_EVT_DISABLE (0) -#define IWL_EVT_DISABLE_SIZE (1532/32) - -/** - * iwl3945_disable_events - Disable selected events in uCode event log - * - * Disable an event by writing "1"s into "disable" - * bitmap in SRAM. Bit position corresponds to Event # (id/type). - * Default values of 0 enable uCode events to be logged. - * Use for only special debugging. This function is just a placeholder as-is, - * you'll need to provide the special bits! ... - * ... and set IWL_EVT_DISABLE to 1. */ -void iwl3945_disable_events(struct iwl_priv *priv) -{ - int i; - u32 base; /* SRAM address of event log header */ - u32 disable_ptr; /* SRAM address of event-disable bitmap array */ - u32 array_size; /* # of u32 entries in array */ - static const u32 evt_disable[IWL_EVT_DISABLE_SIZE] = { - 0x00000000, /* 31 - 0 Event id numbers */ - 0x00000000, /* 63 - 32 */ - 0x00000000, /* 95 - 64 */ - 0x00000000, /* 127 - 96 */ - 0x00000000, /* 159 - 128 */ - 0x00000000, /* 191 - 160 */ - 0x00000000, /* 223 - 192 */ - 0x00000000, /* 255 - 224 */ - 0x00000000, /* 287 - 256 */ - 0x00000000, /* 319 - 288 */ - 0x00000000, /* 351 - 320 */ - 0x00000000, /* 383 - 352 */ - 0x00000000, /* 415 - 384 */ - 0x00000000, /* 447 - 416 */ - 0x00000000, /* 479 - 448 */ - 0x00000000, /* 511 - 480 */ - 0x00000000, /* 543 - 512 */ - 0x00000000, /* 575 - 544 */ - 0x00000000, /* 607 - 576 */ - 0x00000000, /* 639 - 608 */ - 0x00000000, /* 671 - 640 */ - 0x00000000, /* 703 - 672 */ - 0x00000000, /* 735 - 704 */ - 0x00000000, /* 767 - 736 */ - 0x00000000, /* 799 - 768 */ - 0x00000000, /* 831 - 800 */ - 0x00000000, /* 863 - 832 */ - 0x00000000, /* 895 - 864 */ - 0x00000000, /* 927 - 896 */ - 0x00000000, /* 959 - 928 */ - 0x00000000, /* 991 - 960 */ - 0x00000000, /* 1023 - 992 */ - 0x00000000, /* 1055 - 1024 */ - 0x00000000, /* 1087 - 1056 */ - 0x00000000, /* 1119 - 1088 */ - 0x00000000, /* 1151 - 1120 */ - 0x00000000, /* 1183 - 1152 */ - 0x00000000, /* 1215 - 1184 */ - 0x00000000, /* 1247 - 1216 */ - 0x00000000, /* 1279 - 1248 */ - 0x00000000, /* 1311 - 1280 */ - 0x00000000, /* 1343 - 1312 */ - 0x00000000, /* 1375 - 1344 */ - 0x00000000, /* 1407 - 1376 */ - 0x00000000, /* 1439 - 1408 */ - 0x00000000, /* 1471 - 1440 */ - 0x00000000, /* 1503 - 1472 */ - }; - - base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - if (!iwl3945_hw_valid_rtc_data_addr(base)) { - IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); - return; - } - - disable_ptr = iwl_legacy_read_targ_mem(priv, base + (4 * sizeof(u32))); - array_size = iwl_legacy_read_targ_mem(priv, base + (5 * sizeof(u32))); - - if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) { - IWL_DEBUG_INFO(priv, "Disabling selected uCode log events at 0x%x\n", - disable_ptr); - for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++) - iwl_legacy_write_targ_mem(priv, - disable_ptr + (i * sizeof(u32)), - evt_disable[i]); - - } else { - IWL_DEBUG_INFO(priv, "Selected uCode log events may be disabled\n"); - IWL_DEBUG_INFO(priv, " by writing \"1\"s into disable bitmap\n"); - IWL_DEBUG_INFO(priv, " in SRAM at 0x%x, size %d u32s\n", - disable_ptr, array_size); - } - -} - -static int iwl3945_hwrate_to_plcp_idx(u8 plcp) -{ - int idx; - - for (idx = 0; idx < IWL_RATE_COUNT_3945; idx++) - if (iwl3945_rates[idx].plcp == plcp) - return idx; - return -1; -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -#define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x - -static const char *iwl3945_get_tx_fail_reason(u32 status) -{ - switch (status & TX_STATUS_MSK) { - case TX_3945_STATUS_SUCCESS: - return "SUCCESS"; - TX_STATUS_ENTRY(SHORT_LIMIT); - TX_STATUS_ENTRY(LONG_LIMIT); - TX_STATUS_ENTRY(FIFO_UNDERRUN); - TX_STATUS_ENTRY(MGMNT_ABORT); - TX_STATUS_ENTRY(NEXT_FRAG); - TX_STATUS_ENTRY(LIFE_EXPIRE); - TX_STATUS_ENTRY(DEST_PS); - TX_STATUS_ENTRY(ABORTED); - TX_STATUS_ENTRY(BT_RETRY); - TX_STATUS_ENTRY(STA_INVALID); - TX_STATUS_ENTRY(FRAG_DROPPED); - TX_STATUS_ENTRY(TID_DISABLE); - TX_STATUS_ENTRY(FRAME_FLUSHED); - TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); - TX_STATUS_ENTRY(TX_LOCKED); - TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); - } - - return "UNKNOWN"; -} -#else -static inline const char *iwl3945_get_tx_fail_reason(u32 status) -{ - return ""; -} -#endif - -/* - * get ieee prev rate from rate scale table. - * for A and B mode we need to overright prev - * value - */ -int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate) -{ - int next_rate = iwl3945_get_prev_ieee_rate(rate); - - switch (priv->band) { - case IEEE80211_BAND_5GHZ: - if (rate == IWL_RATE_12M_INDEX) - next_rate = IWL_RATE_9M_INDEX; - else if (rate == IWL_RATE_6M_INDEX) - next_rate = IWL_RATE_6M_INDEX; - break; - case IEEE80211_BAND_2GHZ: - if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) && - iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) { - if (rate == IWL_RATE_11M_INDEX) - next_rate = IWL_RATE_5M_INDEX; - } - break; - - default: - break; - } - - return next_rate; -} - - -/** - * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd - * - * When FW advances 'R' index, all entries between old and new 'R' index - * need to be reclaimed. As result, some free space forms. If there is - * enough free space (> low mark), wake the stack that feeds us. - */ -static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv, - int txq_id, int index) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl_queue *q = &txq->q; - struct iwl_tx_info *tx_info; - - BUG_ON(txq_id == IWL39_CMD_QUEUE_NUM); - - for (index = iwl_legacy_queue_inc_wrap(index, q->n_bd); - q->read_ptr != index; - q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) { - - tx_info = &txq->txb[txq->q.read_ptr]; - ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb); - tx_info->skb = NULL; - priv->cfg->ops->lib->txq_free_tfd(priv, txq); - } - - if (iwl_legacy_queue_space(q) > q->low_mark && (txq_id >= 0) && - (txq_id != IWL39_CMD_QUEUE_NUM) && - priv->mac80211_registered) - iwl_legacy_wake_queue(priv, txq); -} - -/** - * iwl3945_rx_reply_tx - Handle Tx response - */ -static void iwl3945_rx_reply_tx(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - u16 sequence = le16_to_cpu(pkt->hdr.sequence); - int txq_id = SEQ_TO_QUEUE(sequence); - int index = SEQ_TO_INDEX(sequence); - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct ieee80211_tx_info *info; - struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; - u32 status = le32_to_cpu(tx_resp->status); - int rate_idx; - int fail; - - if ((index >= txq->q.n_bd) || (iwl_legacy_queue_used(&txq->q, index) == 0)) { - IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d " - "is out of range [0-%d] %d %d\n", txq_id, - index, txq->q.n_bd, txq->q.write_ptr, - txq->q.read_ptr); - return; - } - - txq->time_stamp = jiffies; - info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb); - ieee80211_tx_info_clear_status(info); - - /* Fill the MRR chain with some info about on-chip retransmissions */ - rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); - if (info->band == IEEE80211_BAND_5GHZ) - rate_idx -= IWL_FIRST_OFDM_RATE; - - fail = tx_resp->failure_frame; - - info->status.rates[0].idx = rate_idx; - info->status.rates[0].count = fail + 1; /* add final attempt */ - - /* tx_status->rts_retry_count = tx_resp->failure_rts; */ - info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? - IEEE80211_TX_STAT_ACK : 0; - - IWL_DEBUG_TX(priv, "Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", - txq_id, iwl3945_get_tx_fail_reason(status), status, - tx_resp->rate, tx_resp->failure_frame); - - IWL_DEBUG_TX_REPLY(priv, "Tx queue reclaim %d\n", index); - iwl3945_tx_queue_reclaim(priv, txq_id, index); - - if (status & TX_ABORT_REQUIRED_MSK) - IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n"); -} - - - -/***************************************************************************** - * - * Intel PRO/Wireless 3945ABG/BG Network Connection - * - * RX handler implementations - * - *****************************************************************************/ -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS -static void iwl3945_accumulative_statistics(struct iwl_priv *priv, - __le32 *stats) -{ - int i; - __le32 *prev_stats; - u32 *accum_stats; - u32 *delta, *max_delta; - - prev_stats = (__le32 *)&priv->_3945.statistics; - accum_stats = (u32 *)&priv->_3945.accum_statistics; - delta = (u32 *)&priv->_3945.delta_statistics; - max_delta = (u32 *)&priv->_3945.max_delta; - - for (i = sizeof(__le32); i < sizeof(struct iwl3945_notif_statistics); - i += sizeof(__le32), stats++, prev_stats++, delta++, - max_delta++, accum_stats++) { - if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) { - *delta = (le32_to_cpu(*stats) - - le32_to_cpu(*prev_stats)); - *accum_stats += *delta; - if (*delta > *max_delta) - *max_delta = *delta; - } - } - - /* reset accumulative statistics for "no-counter" type statistics */ - priv->_3945.accum_statistics.general.temperature = - priv->_3945.statistics.general.temperature; - priv->_3945.accum_statistics.general.ttl_timestamp = - priv->_3945.statistics.general.ttl_timestamp; -} -#endif - -void iwl3945_hw_rx_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - - IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n", - (int)sizeof(struct iwl3945_notif_statistics), - le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK); -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - iwl3945_accumulative_statistics(priv, (__le32 *)&pkt->u.raw); -#endif - - memcpy(&priv->_3945.statistics, pkt->u.raw, sizeof(priv->_3945.statistics)); -} - -void iwl3945_reply_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - __le32 *flag = (__le32 *)&pkt->u.raw; - - if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) { -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - memset(&priv->_3945.accum_statistics, 0, - sizeof(struct iwl3945_notif_statistics)); - memset(&priv->_3945.delta_statistics, 0, - sizeof(struct iwl3945_notif_statistics)); - memset(&priv->_3945.max_delta, 0, - sizeof(struct iwl3945_notif_statistics)); -#endif - IWL_DEBUG_RX(priv, "Statistics have been cleared\n"); - } - iwl3945_hw_rx_statistics(priv, rxb); -} - - -/****************************************************************************** - * - * Misc. internal state and helper functions - * - ******************************************************************************/ - -/* This is necessary only for a number of statistics, see the caller. */ -static int iwl3945_is_network_packet(struct iwl_priv *priv, - struct ieee80211_hdr *header) -{ - /* Filter incoming packets to determine if they are targeted toward - * this network, discarding packets coming from ourselves */ - switch (priv->iw_mode) { - case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */ - /* packets to our IBSS update information */ - return !compare_ether_addr(header->addr3, priv->bssid); - case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */ - /* packets to our IBSS update information */ - return !compare_ether_addr(header->addr2, priv->bssid); - default: - return 1; - } -} - -static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb, - struct ieee80211_rx_status *stats) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt); - struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); - struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); - u16 len = le16_to_cpu(rx_hdr->len); - struct sk_buff *skb; - __le16 fc = hdr->frame_control; - - /* We received data from the HW, so stop the watchdog */ - if (unlikely(len + IWL39_RX_FRAME_SIZE > - PAGE_SIZE << priv->hw_params.rx_page_order)) { - IWL_DEBUG_DROP(priv, "Corruption detected!\n"); - return; - } - - /* We only process data packets if the interface is open */ - if (unlikely(!priv->is_open)) { - IWL_DEBUG_DROP_LIMIT(priv, - "Dropping packet while interface is not open.\n"); - return; - } - - skb = dev_alloc_skb(128); - if (!skb) { - IWL_ERR(priv, "dev_alloc_skb failed\n"); - return; - } - - if (!iwl3945_mod_params.sw_crypto) - iwl_legacy_set_decrypted_flag(priv, - (struct ieee80211_hdr *)rxb_addr(rxb), - le32_to_cpu(rx_end->status), stats); - - skb_add_rx_frag(skb, 0, rxb->page, - (void *)rx_hdr->payload - (void *)pkt, len); - - iwl_legacy_update_stats(priv, false, fc, len); - memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); - - ieee80211_rx(priv->hw, skb); - priv->alloc_rxb_page--; - rxb->page = NULL; -} - -#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) - -static void iwl3945_rx_reply_rx(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct ieee80211_hdr *header; - struct ieee80211_rx_status rx_status; - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); - struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); - struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); - u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg); - u16 rx_stats_noise_diff __maybe_unused = le16_to_cpu(rx_stats->noise_diff); - u8 network_packet; - - rx_status.flag = 0; - rx_status.mactime = le64_to_cpu(rx_end->timestamp); - rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? - IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; - rx_status.freq = - ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel), - rx_status.band); - - rx_status.rate_idx = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate); - if (rx_status.band == IEEE80211_BAND_5GHZ) - rx_status.rate_idx -= IWL_FIRST_OFDM_RATE; - - rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) & - RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4; - - /* set the preamble flag if appropriate */ - if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) - rx_status.flag |= RX_FLAG_SHORTPRE; - - if ((unlikely(rx_stats->phy_count > 20))) { - IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n", - rx_stats->phy_count); - return; - } - - if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR) - || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) { - IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n", rx_end->status); - return; - } - - - - /* Convert 3945's rssi indicator to dBm */ - rx_status.signal = rx_stats->rssi - IWL39_RSSI_OFFSET; - - IWL_DEBUG_STATS(priv, "Rssi %d sig_avg %d noise_diff %d\n", - rx_status.signal, rx_stats_sig_avg, - rx_stats_noise_diff); - - header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt); - - network_packet = iwl3945_is_network_packet(priv, header); - - IWL_DEBUG_STATS_LIMIT(priv, "[%c] %d RSSI:%d Signal:%u, Rate:%u\n", - network_packet ? '*' : ' ', - le16_to_cpu(rx_hdr->channel), - rx_status.signal, rx_status.signal, - rx_status.rate_idx); - - iwl_legacy_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len), - header); - - if (network_packet) { - priv->_3945.last_beacon_time = - le32_to_cpu(rx_end->beacon_timestamp); - priv->_3945.last_tsf = le64_to_cpu(rx_end->timestamp); - priv->_3945.last_rx_rssi = rx_status.signal; - } - - iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status); -} - -int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - dma_addr_t addr, u16 len, u8 reset, u8 pad) -{ - int count; - struct iwl_queue *q; - struct iwl3945_tfd *tfd, *tfd_tmp; - - q = &txq->q; - tfd_tmp = (struct iwl3945_tfd *)txq->tfds; - tfd = &tfd_tmp[q->write_ptr]; - - if (reset) - memset(tfd, 0, sizeof(*tfd)); - - count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); - - if ((count >= NUM_TFD_CHUNKS) || (count < 0)) { - IWL_ERR(priv, "Error can not send more than %d chunks\n", - NUM_TFD_CHUNKS); - return -EINVAL; - } - - tfd->tbs[count].addr = cpu_to_le32(addr); - tfd->tbs[count].len = cpu_to_le32(len); - - count++; - - tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) | - TFD_CTL_PAD_SET(pad)); - - return 0; -} - -/** - * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr] - * - * Does NOT advance any indexes - */ -void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) -{ - struct iwl3945_tfd *tfd_tmp = (struct iwl3945_tfd *)txq->tfds; - int index = txq->q.read_ptr; - struct iwl3945_tfd *tfd = &tfd_tmp[index]; - struct pci_dev *dev = priv->pci_dev; - int i; - int counter; - - /* sanity check */ - counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); - if (counter > NUM_TFD_CHUNKS) { - IWL_ERR(priv, "Too many chunks: %i\n", counter); - /* @todo issue fatal error, it is quite serious situation */ - return; - } - - /* Unmap tx_cmd */ - if (counter) - pci_unmap_single(dev, - dma_unmap_addr(&txq->meta[index], mapping), - dma_unmap_len(&txq->meta[index], len), - PCI_DMA_TODEVICE); - - /* unmap chunks if any */ - - for (i = 1; i < counter; i++) - pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr), - le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE); - - /* free SKB */ - if (txq->txb) { - struct sk_buff *skb; - - skb = txq->txb[txq->q.read_ptr].skb; - - /* can be called from irqs-disabled context */ - if (skb) { - dev_kfree_skb_any(skb); - txq->txb[txq->q.read_ptr].skb = NULL; - } - } -} - -/** - * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD: - * -*/ -void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct ieee80211_tx_info *info, - struct ieee80211_hdr *hdr, - int sta_id, int tx_id) -{ - u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value; - u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT_3945); - u16 rate_mask; - int rate; - u8 rts_retry_limit; - u8 data_retry_limit; - __le32 tx_flags; - __le16 fc = hdr->frame_control; - struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; - - rate = iwl3945_rates[rate_index].plcp; - tx_flags = tx_cmd->tx_flags; - - /* We need to figure out how to get the sta->supp_rates while - * in this running context */ - rate_mask = IWL_RATES_MASK_3945; - - /* Set retry limit on DATA packets and Probe Responses*/ - if (ieee80211_is_probe_resp(fc)) - data_retry_limit = 3; - else - data_retry_limit = IWL_DEFAULT_TX_RETRY; - tx_cmd->data_retry_limit = data_retry_limit; - - if (tx_id >= IWL39_CMD_QUEUE_NUM) - rts_retry_limit = 3; - else - rts_retry_limit = 7; - - if (data_retry_limit < rts_retry_limit) - rts_retry_limit = data_retry_limit; - tx_cmd->rts_retry_limit = rts_retry_limit; - - tx_cmd->rate = rate; - tx_cmd->tx_flags = tx_flags; - - /* OFDM */ - tx_cmd->supp_rates[0] = - ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF; - - /* CCK */ - tx_cmd->supp_rates[1] = (rate_mask & 0xF); - - IWL_DEBUG_RATE(priv, "Tx sta id: %d, rate: %d (plcp), flags: 0x%4X " - "cck/ofdm mask: 0x%x/0x%x\n", sta_id, - tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags), - tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]); -} - -static u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate) -{ - unsigned long flags_spin; - struct iwl_station_entry *station; - - if (sta_id == IWL_INVALID_STATION) - return IWL_INVALID_STATION; - - spin_lock_irqsave(&priv->sta_lock, flags_spin); - station = &priv->stations[sta_id]; - - station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK; - station->sta.rate_n_flags = cpu_to_le16(tx_rate); - station->sta.mode = STA_CONTROL_MODIFY_MSK; - iwl_legacy_send_add_sta(priv, &station->sta, CMD_ASYNC); - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); - - IWL_DEBUG_RATE(priv, "SCALE sync station %d to rate %d\n", - sta_id, tx_rate); - return sta_id; -} - -static void iwl3945_set_pwr_vmain(struct iwl_priv *priv) -{ -/* - * (for documentation purposes) - * to set power to V_AUX, do - - if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) { - iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VAUX, - ~APMG_PS_CTRL_MSK_PWR_SRC); - - iwl_poll_bit(priv, CSR_GPIO_IN, - CSR_GPIO_IN_VAL_VAUX_PWR_SRC, - CSR_GPIO_IN_BIT_AUX_POWER, 5000); - } - */ - - iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, - ~APMG_PS_CTRL_MSK_PWR_SRC); - - iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC, - CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */ -} - -static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - iwl_legacy_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->bd_dma); - iwl_legacy_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0), - rxq->rb_stts_dma); - iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), 0); - iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0), - FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE | - FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE | - FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN | - FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 | - (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) | - FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST | - (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) | - FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH); - - /* fake read to flush all prev I/O */ - iwl_legacy_read_direct32(priv, FH39_RSSR_CTRL); - - return 0; -} - -static int iwl3945_tx_reset(struct iwl_priv *priv) -{ - - /* bypass mode */ - iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0x2); - - /* RA 0 is active */ - iwl_legacy_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01); - - /* all 6 fifo are active */ - iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f); - - iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000); - iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002); - iwl_legacy_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004); - iwl_legacy_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005); - - iwl_legacy_write_direct32(priv, FH39_TSSR_CBB_BASE, - priv->_3945.shared_phys); - - iwl_legacy_write_direct32(priv, FH39_TSSR_MSG_CONFIG, - FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON | - FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON | - FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B | - FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON | - FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON | - FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH | - FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH); - - - return 0; -} - -/** - * iwl3945_txq_ctx_reset - Reset TX queue context - * - * Destroys all DMA structures and initialize them again - */ -static int iwl3945_txq_ctx_reset(struct iwl_priv *priv) -{ - int rc; - int txq_id, slots_num; - - iwl3945_hw_txq_ctx_free(priv); - - /* allocate tx queue structure */ - rc = iwl_legacy_alloc_txq_mem(priv); - if (rc) - return rc; - - /* Tx CMD queue */ - rc = iwl3945_tx_reset(priv); - if (rc) - goto error; - - /* Tx queue(s) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = (txq_id == IWL39_CMD_QUEUE_NUM) ? - TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - rc = iwl_legacy_tx_queue_init(priv, &priv->txq[txq_id], - slots_num, txq_id); - if (rc) { - IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); - goto error; - } - } - - return rc; - - error: - iwl3945_hw_txq_ctx_free(priv); - return rc; -} - - -/* - * Start up 3945's basic functionality after it has been reset - * (e.g. after platform boot, or shutdown via iwl_legacy_apm_stop()) - * NOTE: This does not load uCode nor start the embedded processor - */ -static int iwl3945_apm_init(struct iwl_priv *priv) -{ - int ret = iwl_legacy_apm_init(priv); - - /* Clear APMG (NIC's internal power management) interrupts */ - iwl_legacy_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0); - iwl_legacy_write_prph(priv, APMG_RTC_INT_STT_REG, 0xFFFFFFFF); - - /* Reset radio chip */ - iwl_legacy_set_bits_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_RESET_REQ); - udelay(5); - iwl_legacy_clear_bits_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_RESET_REQ); - - return ret; -} - -static void iwl3945_nic_config(struct iwl_priv *priv) -{ - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - unsigned long flags; - u8 rev_id = priv->pci_dev->revision; - - spin_lock_irqsave(&priv->lock, flags); - - /* Determine HW type */ - IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id); - - if (rev_id & PCI_CFG_REV_ID_BIT_RTP) - IWL_DEBUG_INFO(priv, "RTP type\n"); - else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) { - IWL_DEBUG_INFO(priv, "3945 RADIO-MB type\n"); - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR39_HW_IF_CONFIG_REG_BIT_3945_MB); - } else { - IWL_DEBUG_INFO(priv, "3945 RADIO-MM type\n"); - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR39_HW_IF_CONFIG_REG_BIT_3945_MM); - } - - if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) { - IWL_DEBUG_INFO(priv, "SKU OP mode is mrc\n"); - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC); - } else - IWL_DEBUG_INFO(priv, "SKU OP mode is basic\n"); - - if ((eeprom->board_revision & 0xF0) == 0xD0) { - IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n", - eeprom->board_revision); - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); - } else { - IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n", - eeprom->board_revision); - iwl_legacy_clear_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); - } - - if (eeprom->almgor_m_version <= 1) { - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A); - IWL_DEBUG_INFO(priv, "Card M type A version is 0x%X\n", - eeprom->almgor_m_version); - } else { - IWL_DEBUG_INFO(priv, "Card M type B version is 0x%X\n", - eeprom->almgor_m_version); - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B); - } - spin_unlock_irqrestore(&priv->lock, flags); - - if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE) - IWL_DEBUG_RF_KILL(priv, "SW RF KILL supported in EEPROM.\n"); - - if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) - IWL_DEBUG_RF_KILL(priv, "HW RF KILL supported in EEPROM.\n"); -} - -int iwl3945_hw_nic_init(struct iwl_priv *priv) -{ - int rc; - unsigned long flags; - struct iwl_rx_queue *rxq = &priv->rxq; - - spin_lock_irqsave(&priv->lock, flags); - priv->cfg->ops->lib->apm_ops.init(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - iwl3945_set_pwr_vmain(priv); - - priv->cfg->ops->lib->apm_ops.config(priv); - - /* Allocate the RX queue, or reset if it is already allocated */ - if (!rxq->bd) { - rc = iwl_legacy_rx_queue_alloc(priv); - if (rc) { - IWL_ERR(priv, "Unable to initialize Rx queue\n"); - return -ENOMEM; - } - } else - iwl3945_rx_queue_reset(priv, rxq); - - iwl3945_rx_replenish(priv); - - iwl3945_rx_init(priv, rxq); - - - /* Look at using this instead: - rxq->need_update = 1; - iwl_legacy_rx_queue_update_write_ptr(priv, rxq); - */ - - iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7); - - rc = iwl3945_txq_ctx_reset(priv); - if (rc) - return rc; - - set_bit(STATUS_INIT, &priv->status); - - return 0; -} - -/** - * iwl3945_hw_txq_ctx_free - Free TXQ Context - * - * Destroy all TX DMA queues and structures - */ -void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv) -{ - int txq_id; - - /* Tx queues */ - if (priv->txq) - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; - txq_id++) - if (txq_id == IWL39_CMD_QUEUE_NUM) - iwl_legacy_cmd_queue_free(priv); - else - iwl_legacy_tx_queue_free(priv, txq_id); - - /* free tx queue structure */ - iwl_legacy_txq_mem(priv); -} - -void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv) -{ - int txq_id; - - /* stop SCD */ - iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0); - iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0); - - /* reset TFD queues */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0); - iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS, - FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id), - 1000); - } - - iwl3945_hw_txq_ctx_free(priv); -} - -/** - * iwl3945_hw_reg_adjust_power_by_temp - * return index delta into power gain settings table -*/ -static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading) -{ - return (new_reading - old_reading) * (-11) / 100; -} - -/** - * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range - */ -static inline int iwl3945_hw_reg_temp_out_of_range(int temperature) -{ - return ((temperature < -260) || (temperature > 25)) ? 1 : 0; -} - -int iwl3945_hw_get_temperature(struct iwl_priv *priv) -{ - return iwl_read32(priv, CSR_UCODE_DRV_GP2); -} - -/** - * iwl3945_hw_reg_txpower_get_temperature - * get the current temperature by reading from NIC -*/ -static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv) -{ - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - int temperature; - - temperature = iwl3945_hw_get_temperature(priv); - - /* driver's okay range is -260 to +25. - * human readable okay range is 0 to +285 */ - IWL_DEBUG_INFO(priv, "Temperature: %d\n", temperature + IWL_TEMP_CONVERT); - - /* handle insane temp reading */ - if (iwl3945_hw_reg_temp_out_of_range(temperature)) { - IWL_ERR(priv, "Error bad temperature value %d\n", temperature); - - /* if really really hot(?), - * substitute the 3rd band/group's temp measured at factory */ - if (priv->last_temperature > 100) - temperature = eeprom->groups[2].temperature; - else /* else use most recent "sane" value from driver */ - temperature = priv->last_temperature; - } - - return temperature; /* raw, not "human readable" */ -} - -/* Adjust Txpower only if temperature variance is greater than threshold. - * - * Both are lower than older versions' 9 degrees */ -#define IWL_TEMPERATURE_LIMIT_TIMER 6 - -/** - * iwl3945_is_temp_calib_needed - determines if new calibration is needed - * - * records new temperature in tx_mgr->temperature. - * replaces tx_mgr->last_temperature *only* if calib needed - * (assumes caller will actually do the calibration!). */ -static int iwl3945_is_temp_calib_needed(struct iwl_priv *priv) -{ - int temp_diff; - - priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv); - temp_diff = priv->temperature - priv->last_temperature; - - /* get absolute value */ - if (temp_diff < 0) { - IWL_DEBUG_POWER(priv, "Getting cooler, delta %d,\n", temp_diff); - temp_diff = -temp_diff; - } else if (temp_diff == 0) - IWL_DEBUG_POWER(priv, "Same temp,\n"); - else - IWL_DEBUG_POWER(priv, "Getting warmer, delta %d,\n", temp_diff); - - /* if we don't need calibration, *don't* update last_temperature */ - if (temp_diff < IWL_TEMPERATURE_LIMIT_TIMER) { - IWL_DEBUG_POWER(priv, "Timed thermal calib not needed\n"); - return 0; - } - - IWL_DEBUG_POWER(priv, "Timed thermal calib needed\n"); - - /* assume that caller will actually do calib ... - * update the "last temperature" value */ - priv->last_temperature = priv->temperature; - return 1; -} - -#define IWL_MAX_GAIN_ENTRIES 78 -#define IWL_CCK_FROM_OFDM_POWER_DIFF -5 -#define IWL_CCK_FROM_OFDM_INDEX_DIFF (10) - -/* radio and DSP power table, each step is 1/2 dB. - * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */ -static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = { - { - {251, 127}, /* 2.4 GHz, highest power */ - {251, 127}, - {251, 127}, - {251, 127}, - {251, 125}, - {251, 110}, - {251, 105}, - {251, 98}, - {187, 125}, - {187, 115}, - {187, 108}, - {187, 99}, - {243, 119}, - {243, 111}, - {243, 105}, - {243, 97}, - {243, 92}, - {211, 106}, - {211, 100}, - {179, 120}, - {179, 113}, - {179, 107}, - {147, 125}, - {147, 119}, - {147, 112}, - {147, 106}, - {147, 101}, - {147, 97}, - {147, 91}, - {115, 107}, - {235, 121}, - {235, 115}, - {235, 109}, - {203, 127}, - {203, 121}, - {203, 115}, - {203, 108}, - {203, 102}, - {203, 96}, - {203, 92}, - {171, 110}, - {171, 104}, - {171, 98}, - {139, 116}, - {227, 125}, - {227, 119}, - {227, 113}, - {227, 107}, - {227, 101}, - {227, 96}, - {195, 113}, - {195, 106}, - {195, 102}, - {195, 95}, - {163, 113}, - {163, 106}, - {163, 102}, - {163, 95}, - {131, 113}, - {131, 106}, - {131, 102}, - {131, 95}, - {99, 113}, - {99, 106}, - {99, 102}, - {99, 95}, - {67, 113}, - {67, 106}, - {67, 102}, - {67, 95}, - {35, 113}, - {35, 106}, - {35, 102}, - {35, 95}, - {3, 113}, - {3, 106}, - {3, 102}, - {3, 95} }, /* 2.4 GHz, lowest power */ - { - {251, 127}, /* 5.x GHz, highest power */ - {251, 120}, - {251, 114}, - {219, 119}, - {219, 101}, - {187, 113}, - {187, 102}, - {155, 114}, - {155, 103}, - {123, 117}, - {123, 107}, - {123, 99}, - {123, 92}, - {91, 108}, - {59, 125}, - {59, 118}, - {59, 109}, - {59, 102}, - {59, 96}, - {59, 90}, - {27, 104}, - {27, 98}, - {27, 92}, - {115, 118}, - {115, 111}, - {115, 104}, - {83, 126}, - {83, 121}, - {83, 113}, - {83, 105}, - {83, 99}, - {51, 118}, - {51, 111}, - {51, 104}, - {51, 98}, - {19, 116}, - {19, 109}, - {19, 102}, - {19, 98}, - {19, 93}, - {171, 113}, - {171, 107}, - {171, 99}, - {139, 120}, - {139, 113}, - {139, 107}, - {139, 99}, - {107, 120}, - {107, 113}, - {107, 107}, - {107, 99}, - {75, 120}, - {75, 113}, - {75, 107}, - {75, 99}, - {43, 120}, - {43, 113}, - {43, 107}, - {43, 99}, - {11, 120}, - {11, 113}, - {11, 107}, - {11, 99}, - {131, 107}, - {131, 99}, - {99, 120}, - {99, 113}, - {99, 107}, - {99, 99}, - {67, 120}, - {67, 113}, - {67, 107}, - {67, 99}, - {35, 120}, - {35, 113}, - {35, 107}, - {35, 99}, - {3, 120} } /* 5.x GHz, lowest power */ -}; - -static inline u8 iwl3945_hw_reg_fix_power_index(int index) -{ - if (index < 0) - return 0; - if (index >= IWL_MAX_GAIN_ENTRIES) - return IWL_MAX_GAIN_ENTRIES - 1; - return (u8) index; -} - -/* Kick off thermal recalibration check every 60 seconds */ -#define REG_RECALIB_PERIOD (60) - -/** - * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests - * - * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK) - * or 6 Mbit (OFDM) rates. - */ -static void iwl3945_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index, - s32 rate_index, const s8 *clip_pwrs, - struct iwl_channel_info *ch_info, - int band_index) -{ - struct iwl3945_scan_power_info *scan_power_info; - s8 power; - u8 power_index; - - scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index]; - - /* use this channel group's 6Mbit clipping/saturation pwr, - * but cap at regulatory scan power restriction (set during init - * based on eeprom channel data) for this channel. */ - power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]); - - power = min(power, priv->tx_power_user_lmt); - scan_power_info->requested_power = power; - - /* find difference between new scan *power* and current "normal" - * Tx *power* for 6Mb. Use this difference (x2) to adjust the - * current "normal" temperature-compensated Tx power *index* for - * this rate (1Mb or 6Mb) to yield new temp-compensated scan power - * *index*. */ - power_index = ch_info->power_info[rate_index].power_table_index - - (power - ch_info->power_info - [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2; - - /* store reference index that we use when adjusting *all* scan - * powers. So we can accommodate user (all channel) or spectrum - * management (single channel) power changes "between" temperature - * feedback compensation procedures. - * don't force fit this reference index into gain table; it may be a - * negative number. This will help avoid errors when we're at - * the lower bounds (highest gains, for warmest temperatures) - * of the table. */ - - /* don't exceed table bounds for "real" setting */ - power_index = iwl3945_hw_reg_fix_power_index(power_index); - - scan_power_info->power_table_index = power_index; - scan_power_info->tpc.tx_gain = - power_gain_table[band_index][power_index].tx_gain; - scan_power_info->tpc.dsp_atten = - power_gain_table[band_index][power_index].dsp_atten; -} - -/** - * iwl3945_send_tx_power - fill in Tx Power command with gain settings - * - * Configures power settings for all rates for the current channel, - * using values from channel info struct, and send to NIC - */ -static int iwl3945_send_tx_power(struct iwl_priv *priv) -{ - int rate_idx, i; - const struct iwl_channel_info *ch_info = NULL; - struct iwl3945_txpowertable_cmd txpower = { - .channel = priv->contexts[IWL_RXON_CTX_BSS].active.channel, - }; - u16 chan; - - if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status), - "TX Power requested while scanning!\n")) - return -EAGAIN; - - chan = le16_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.channel); - - txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1; - ch_info = iwl_legacy_get_channel_info(priv, priv->band, chan); - if (!ch_info) { - IWL_ERR(priv, - "Failed to get channel info for channel %d [%d]\n", - chan, priv->band); - return -EINVAL; - } - - if (!iwl_legacy_is_channel_valid(ch_info)) { - IWL_DEBUG_POWER(priv, "Not calling TX_PWR_TABLE_CMD on " - "non-Tx channel.\n"); - return 0; - } - - /* fill cmd with power settings for all rates for current channel */ - /* Fill OFDM rate */ - for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0; - rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) { - - txpower.power[i].tpc = ch_info->power_info[i].tpc; - txpower.power[i].rate = iwl3945_rates[rate_idx].plcp; - - IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n", - le16_to_cpu(txpower.channel), - txpower.band, - txpower.power[i].tpc.tx_gain, - txpower.power[i].tpc.dsp_atten, - txpower.power[i].rate); - } - /* Fill CCK rates */ - for (rate_idx = IWL_FIRST_CCK_RATE; - rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) { - txpower.power[i].tpc = ch_info->power_info[i].tpc; - txpower.power[i].rate = iwl3945_rates[rate_idx].plcp; - - IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n", - le16_to_cpu(txpower.channel), - txpower.band, - txpower.power[i].tpc.tx_gain, - txpower.power[i].tpc.dsp_atten, - txpower.power[i].rate); - } - - return iwl_legacy_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, - sizeof(struct iwl3945_txpowertable_cmd), - &txpower); - -} - -/** - * iwl3945_hw_reg_set_new_power - Configures power tables at new levels - * @ch_info: Channel to update. Uses power_info.requested_power. - * - * Replace requested_power and base_power_index ch_info fields for - * one channel. - * - * Called if user or spectrum management changes power preferences. - * Takes into account h/w and modulation limitations (clip power). - * - * This does *not* send anything to NIC, just sets up ch_info for one channel. - * - * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to - * properly fill out the scan powers, and actual h/w gain settings, - * and send changes to NIC - */ -static int iwl3945_hw_reg_set_new_power(struct iwl_priv *priv, - struct iwl_channel_info *ch_info) -{ - struct iwl3945_channel_power_info *power_info; - int power_changed = 0; - int i; - const s8 *clip_pwrs; - int power; - - /* Get this chnlgrp's rate-to-max/clip-powers table */ - clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers; - - /* Get this channel's rate-to-current-power settings table */ - power_info = ch_info->power_info; - - /* update OFDM Txpower settings */ - for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; - i++, ++power_info) { - int delta_idx; - - /* limit new power to be no more than h/w capability */ - power = min(ch_info->curr_txpow, clip_pwrs[i]); - if (power == power_info->requested_power) - continue; - - /* find difference between old and new requested powers, - * update base (non-temp-compensated) power index */ - delta_idx = (power - power_info->requested_power) * 2; - power_info->base_power_index -= delta_idx; - - /* save new requested power value */ - power_info->requested_power = power; - - power_changed = 1; - } - - /* update CCK Txpower settings, based on OFDM 12M setting ... - * ... all CCK power settings for a given channel are the *same*. */ - if (power_changed) { - power = - ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]. - requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF; - - /* do all CCK rates' iwl3945_channel_power_info structures */ - for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) { - power_info->requested_power = power; - power_info->base_power_index = - ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]. - base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF; - ++power_info; - } - } - - return 0; -} - -/** - * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel - * - * NOTE: Returned power limit may be less (but not more) than requested, - * based strictly on regulatory (eeprom and spectrum mgt) limitations - * (no consideration for h/w clipping limitations). - */ -static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info) -{ - s8 max_power; - -#if 0 - /* if we're using TGd limits, use lower of TGd or EEPROM */ - if (ch_info->tgd_data.max_power != 0) - max_power = min(ch_info->tgd_data.max_power, - ch_info->eeprom.max_power_avg); - - /* else just use EEPROM limits */ - else -#endif - max_power = ch_info->eeprom.max_power_avg; - - return min(max_power, ch_info->max_power_avg); -} - -/** - * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature - * - * Compensate txpower settings of *all* channels for temperature. - * This only accounts for the difference between current temperature - * and the factory calibration temperatures, and bases the new settings - * on the channel's base_power_index. - * - * If RxOn is "associated", this sends the new Txpower to NIC! - */ -static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv) -{ - struct iwl_channel_info *ch_info = NULL; - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - int delta_index; - const s8 *clip_pwrs; /* array of h/w max power levels for each rate */ - u8 a_band; - u8 rate_index; - u8 scan_tbl_index; - u8 i; - int ref_temp; - int temperature = priv->temperature; - - if (priv->disable_tx_power_cal || - test_bit(STATUS_SCANNING, &priv->status)) { - /* do not perform tx power calibration */ - return 0; - } - /* set up new Tx power info for each and every channel, 2.4 and 5.x */ - for (i = 0; i < priv->channel_count; i++) { - ch_info = &priv->channel_info[i]; - a_band = iwl_legacy_is_channel_a_band(ch_info); - - /* Get this chnlgrp's factory calibration temperature */ - ref_temp = (s16)eeprom->groups[ch_info->group_index]. - temperature; - - /* get power index adjustment based on current and factory - * temps */ - delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature, - ref_temp); - - /* set tx power value for all rates, OFDM and CCK */ - for (rate_index = 0; rate_index < IWL_RATE_COUNT_3945; - rate_index++) { - int power_idx = - ch_info->power_info[rate_index].base_power_index; - - /* temperature compensate */ - power_idx += delta_index; - - /* stay within table range */ - power_idx = iwl3945_hw_reg_fix_power_index(power_idx); - ch_info->power_info[rate_index]. - power_table_index = (u8) power_idx; - ch_info->power_info[rate_index].tpc = - power_gain_table[a_band][power_idx]; - } - - /* Get this chnlgrp's rate-to-max/clip-powers table */ - clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers; - - /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ - for (scan_tbl_index = 0; - scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) { - s32 actual_index = (scan_tbl_index == 0) ? - IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE; - iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index, - actual_index, clip_pwrs, - ch_info, a_band); - } - } - - /* send Txpower command for current channel to ucode */ - return priv->cfg->ops->lib->send_tx_power(priv); -} - -int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power) -{ - struct iwl_channel_info *ch_info; - s8 max_power; - u8 a_band; - u8 i; - - if (priv->tx_power_user_lmt == power) { - IWL_DEBUG_POWER(priv, "Requested Tx power same as current " - "limit: %ddBm.\n", power); - return 0; - } - - IWL_DEBUG_POWER(priv, "Setting upper limit clamp to %ddBm.\n", power); - priv->tx_power_user_lmt = power; - - /* set up new Tx powers for each and every channel, 2.4 and 5.x */ - - for (i = 0; i < priv->channel_count; i++) { - ch_info = &priv->channel_info[i]; - a_band = iwl_legacy_is_channel_a_band(ch_info); - - /* find minimum power of all user and regulatory constraints - * (does not consider h/w clipping limitations) */ - max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info); - max_power = min(power, max_power); - if (max_power != ch_info->curr_txpow) { - ch_info->curr_txpow = max_power; - - /* this considers the h/w clipping limitations */ - iwl3945_hw_reg_set_new_power(priv, ch_info); - } - } - - /* update txpower settings for all channels, - * send to NIC if associated. */ - iwl3945_is_temp_calib_needed(priv); - iwl3945_hw_reg_comp_txpower_temp(priv); - - return 0; -} - -static int iwl3945_send_rxon_assoc(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - int rc = 0; - struct iwl_rx_packet *pkt; - struct iwl3945_rxon_assoc_cmd rxon_assoc; - struct iwl_host_cmd cmd = { - .id = REPLY_RXON_ASSOC, - .len = sizeof(rxon_assoc), - .flags = CMD_WANT_SKB, - .data = &rxon_assoc, - }; - const struct iwl_legacy_rxon_cmd *rxon1 = &ctx->staging; - const struct iwl_legacy_rxon_cmd *rxon2 = &ctx->active; - - if ((rxon1->flags == rxon2->flags) && - (rxon1->filter_flags == rxon2->filter_flags) && - (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && - (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { - IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); - return 0; - } - - rxon_assoc.flags = ctx->staging.flags; - rxon_assoc.filter_flags = ctx->staging.filter_flags; - rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates; - rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates; - rxon_assoc.reserved = 0; - - rc = iwl_legacy_send_cmd_sync(priv, &cmd); - if (rc) - return rc; - - pkt = (struct iwl_rx_packet *)cmd.reply_page; - if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { - IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n"); - rc = -EIO; - } - - iwl_legacy_free_pages(priv, cmd.reply_page); - - return rc; -} - -/** - * iwl3945_commit_rxon - commit staging_rxon to hardware - * - * The RXON command in staging_rxon is committed to the hardware and - * the active_rxon structure is updated with the new data. This - * function correctly transitions out of the RXON_ASSOC_MSK state if - * a HW tune is required based on the RXON structure changes. - */ -int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - /* cast away the const for active_rxon in this function */ - struct iwl3945_rxon_cmd *active_rxon = (void *)&ctx->active; - struct iwl3945_rxon_cmd *staging_rxon = (void *)&ctx->staging; - int rc = 0; - bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return -EINVAL; - - if (!iwl_legacy_is_alive(priv)) - return -1; - - /* always get timestamp with Rx frame */ - staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK; - - /* select antenna */ - staging_rxon->flags &= - ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); - staging_rxon->flags |= iwl3945_get_antenna_flags(priv); - - rc = iwl_legacy_check_rxon_cmd(priv, ctx); - if (rc) { - IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); - return -EINVAL; - } - - /* If we don't need to send a full RXON, we can use - * iwl3945_rxon_assoc_cmd which is used to reconfigure filter - * and other flags for the current radio configuration. */ - if (!iwl_legacy_full_rxon_required(priv, - &priv->contexts[IWL_RXON_CTX_BSS])) { - rc = iwl_legacy_send_rxon_assoc(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); - if (rc) { - IWL_ERR(priv, "Error setting RXON_ASSOC " - "configuration (%d).\n", rc); - return rc; - } - - memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); - /* - * We do not commit tx power settings while channel changing, - * do it now if tx power changed. - */ - iwl_legacy_set_tx_power(priv, priv->tx_power_next, false); - return 0; - } - - /* If we are currently associated and the new config requires - * an RXON_ASSOC and the new config wants the associated mask enabled, - * we must clear the associated from the active configuration - * before we apply the new config */ - if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS) && new_assoc) { - IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n"); - active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; - - /* - * reserved4 and 5 could have been filled by the iwlcore code. - * Let's clear them before pushing to the 3945. - */ - active_rxon->reserved4 = 0; - active_rxon->reserved5 = 0; - rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON, - sizeof(struct iwl3945_rxon_cmd), - &priv->contexts[IWL_RXON_CTX_BSS].active); - - /* If the mask clearing failed then we set - * active_rxon back to what it was previously */ - if (rc) { - active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; - IWL_ERR(priv, "Error clearing ASSOC_MSK on current " - "configuration (%d).\n", rc); - return rc; - } - iwl_legacy_clear_ucode_stations(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); - iwl_legacy_restore_stations(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); - } - - IWL_DEBUG_INFO(priv, "Sending RXON\n" - "* with%s RXON_FILTER_ASSOC_MSK\n" - "* channel = %d\n" - "* bssid = %pM\n", - (new_assoc ? "" : "out"), - le16_to_cpu(staging_rxon->channel), - staging_rxon->bssid_addr); - - /* - * reserved4 and 5 could have been filled by the iwlcore code. - * Let's clear them before pushing to the 3945. - */ - staging_rxon->reserved4 = 0; - staging_rxon->reserved5 = 0; - - iwl_legacy_set_rxon_hwcrypto(priv, ctx, !iwl3945_mod_params.sw_crypto); - - /* Apply the new configuration */ - rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON, - sizeof(struct iwl3945_rxon_cmd), - staging_rxon); - if (rc) { - IWL_ERR(priv, "Error setting new configuration (%d).\n", rc); - return rc; - } - - memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); - - if (!new_assoc) { - iwl_legacy_clear_ucode_stations(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); - iwl_legacy_restore_stations(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); - } - - /* If we issue a new RXON command which required a tune then we must - * send a new TXPOWER command or we won't be able to Tx any frames */ - rc = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true); - if (rc) { - IWL_ERR(priv, "Error setting Tx power (%d).\n", rc); - return rc; - } - - /* Init the hardware's rate fallback order based on the band */ - rc = iwl3945_init_hw_rate_table(priv); - if (rc) { - IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc); - return -EIO; - } - - return 0; -} - -/** - * iwl3945_reg_txpower_periodic - called when time to check our temperature. - * - * -- reset periodic timer - * -- see if temp has changed enough to warrant re-calibration ... if so: - * -- correct coeffs for temp (can reset temp timer) - * -- save this temp as "last", - * -- send new set of gain settings to NIC - * NOTE: This should continue working, even when we're not associated, - * so we can keep our internal table of scan powers current. */ -void iwl3945_reg_txpower_periodic(struct iwl_priv *priv) -{ - /* This will kick in the "brute force" - * iwl3945_hw_reg_comp_txpower_temp() below */ - if (!iwl3945_is_temp_calib_needed(priv)) - goto reschedule; - - /* Set up a new set of temp-adjusted TxPowers, send to NIC. - * This is based *only* on current temperature, - * ignoring any previous power measurements */ - iwl3945_hw_reg_comp_txpower_temp(priv); - - reschedule: - queue_delayed_work(priv->workqueue, - &priv->_3945.thermal_periodic, REG_RECALIB_PERIOD * HZ); -} - -static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, - _3945.thermal_periodic.work); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - mutex_lock(&priv->mutex); - iwl3945_reg_txpower_periodic(priv); - mutex_unlock(&priv->mutex); -} - -/** - * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4) - * for the channel. - * - * This function is used when initializing channel-info structs. - * - * NOTE: These channel groups do *NOT* match the bands above! - * These channel groups are based on factory-tested channels; - * on A-band, EEPROM's "group frequency" entries represent the top - * channel in each group 1-4. Group 5 All B/G channels are in group 0. - */ -static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv, - const struct iwl_channel_info *ch_info) -{ - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - struct iwl3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0]; - u8 group; - u16 group_index = 0; /* based on factory calib frequencies */ - u8 grp_channel; - - /* Find the group index for the channel ... don't use index 1(?) */ - if (iwl_legacy_is_channel_a_band(ch_info)) { - for (group = 1; group < 5; group++) { - grp_channel = ch_grp[group].group_channel; - if (ch_info->channel <= grp_channel) { - group_index = group; - break; - } - } - /* group 4 has a few channels *above* its factory cal freq */ - if (group == 5) - group_index = 4; - } else - group_index = 0; /* 2.4 GHz, group 0 */ - - IWL_DEBUG_POWER(priv, "Chnl %d mapped to grp %d\n", ch_info->channel, - group_index); - return group_index; -} - -/** - * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index - * - * Interpolate to get nominal (i.e. at factory calibration temperature) index - * into radio/DSP gain settings table for requested power. - */ -static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv, - s8 requested_power, - s32 setting_index, s32 *new_index) -{ - const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL; - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - s32 index0, index1; - s32 power = 2 * requested_power; - s32 i; - const struct iwl3945_eeprom_txpower_sample *samples; - s32 gains0, gains1; - s32 res; - s32 denominator; - - chnl_grp = &eeprom->groups[setting_index]; - samples = chnl_grp->samples; - for (i = 0; i < 5; i++) { - if (power == samples[i].power) { - *new_index = samples[i].gain_index; - return 0; - } - } - - if (power > samples[1].power) { - index0 = 0; - index1 = 1; - } else if (power > samples[2].power) { - index0 = 1; - index1 = 2; - } else if (power > samples[3].power) { - index0 = 2; - index1 = 3; - } else { - index0 = 3; - index1 = 4; - } - - denominator = (s32) samples[index1].power - (s32) samples[index0].power; - if (denominator == 0) - return -EINVAL; - gains0 = (s32) samples[index0].gain_index * (1 << 19); - gains1 = (s32) samples[index1].gain_index * (1 << 19); - res = gains0 + (gains1 - gains0) * - ((s32) power - (s32) samples[index0].power) / denominator + - (1 << 18); - *new_index = res >> 19; - return 0; -} - -static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv) -{ - u32 i; - s32 rate_index; - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - const struct iwl3945_eeprom_txpower_group *group; - - IWL_DEBUG_POWER(priv, "Initializing factory calib info from EEPROM\n"); - - for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) { - s8 *clip_pwrs; /* table of power levels for each rate */ - s8 satur_pwr; /* saturation power for each chnl group */ - group = &eeprom->groups[i]; - - /* sanity check on factory saturation power value */ - if (group->saturation_power < 40) { - IWL_WARN(priv, "Error: saturation power is %d, " - "less than minimum expected 40\n", - group->saturation_power); - return; - } - - /* - * Derive requested power levels for each rate, based on - * hardware capabilities (saturation power for band). - * Basic value is 3dB down from saturation, with further - * power reductions for highest 3 data rates. These - * backoffs provide headroom for high rate modulation - * power peaks, without too much distortion (clipping). - */ - /* we'll fill in this array with h/w max power levels */ - clip_pwrs = (s8 *) priv->_3945.clip_groups[i].clip_powers; - - /* divide factory saturation power by 2 to find -3dB level */ - satur_pwr = (s8) (group->saturation_power >> 1); - - /* fill in channel group's nominal powers for each rate */ - for (rate_index = 0; - rate_index < IWL_RATE_COUNT_3945; rate_index++, clip_pwrs++) { - switch (rate_index) { - case IWL_RATE_36M_INDEX_TABLE: - if (i == 0) /* B/G */ - *clip_pwrs = satur_pwr; - else /* A */ - *clip_pwrs = satur_pwr - 5; - break; - case IWL_RATE_48M_INDEX_TABLE: - if (i == 0) - *clip_pwrs = satur_pwr - 7; - else - *clip_pwrs = satur_pwr - 10; - break; - case IWL_RATE_54M_INDEX_TABLE: - if (i == 0) - *clip_pwrs = satur_pwr - 9; - else - *clip_pwrs = satur_pwr - 12; - break; - default: - *clip_pwrs = satur_pwr; - break; - } - } - } -} - -/** - * iwl3945_txpower_set_from_eeprom - Set channel power info based on EEPROM - * - * Second pass (during init) to set up priv->channel_info - * - * Set up Tx-power settings in our channel info database for each VALID - * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values - * and current temperature. - * - * Since this is based on current temperature (at init time), these values may - * not be valid for very long, but it gives us a starting/default point, - * and allows us to active (i.e. using Tx) scan. - * - * This does *not* write values to NIC, just sets up our internal table. - */ -int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) -{ - struct iwl_channel_info *ch_info = NULL; - struct iwl3945_channel_power_info *pwr_info; - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - int delta_index; - u8 rate_index; - u8 scan_tbl_index; - const s8 *clip_pwrs; /* array of power levels for each rate */ - u8 gain, dsp_atten; - s8 power; - u8 pwr_index, base_pwr_index, a_band; - u8 i; - int temperature; - - /* save temperature reference, - * so we can determine next time to calibrate */ - temperature = iwl3945_hw_reg_txpower_get_temperature(priv); - priv->last_temperature = temperature; - - iwl3945_hw_reg_init_channel_groups(priv); - - /* initialize Tx power info for each and every channel, 2.4 and 5.x */ - for (i = 0, ch_info = priv->channel_info; i < priv->channel_count; - i++, ch_info++) { - a_band = iwl_legacy_is_channel_a_band(ch_info); - if (!iwl_legacy_is_channel_valid(ch_info)) - continue; - - /* find this channel's channel group (*not* "band") index */ - ch_info->group_index = - iwl3945_hw_reg_get_ch_grp_index(priv, ch_info); - - /* Get this chnlgrp's rate->max/clip-powers table */ - clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers; - - /* calculate power index *adjustment* value according to - * diff between current temperature and factory temperature */ - delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature, - eeprom->groups[ch_info->group_index]. - temperature); - - IWL_DEBUG_POWER(priv, "Delta index for channel %d: %d [%d]\n", - ch_info->channel, delta_index, temperature + - IWL_TEMP_CONVERT); - - /* set tx power value for all OFDM rates */ - for (rate_index = 0; rate_index < IWL_OFDM_RATES; - rate_index++) { - s32 uninitialized_var(power_idx); - int rc; - - /* use channel group's clip-power table, - * but don't exceed channel's max power */ - s8 pwr = min(ch_info->max_power_avg, - clip_pwrs[rate_index]); - - pwr_info = &ch_info->power_info[rate_index]; - - /* get base (i.e. at factory-measured temperature) - * power table index for this rate's power */ - rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr, - ch_info->group_index, - &power_idx); - if (rc) { - IWL_ERR(priv, "Invalid power index\n"); - return rc; - } - pwr_info->base_power_index = (u8) power_idx; - - /* temperature compensate */ - power_idx += delta_index; - - /* stay within range of gain table */ - power_idx = iwl3945_hw_reg_fix_power_index(power_idx); - - /* fill 1 OFDM rate's iwl3945_channel_power_info struct */ - pwr_info->requested_power = pwr; - pwr_info->power_table_index = (u8) power_idx; - pwr_info->tpc.tx_gain = - power_gain_table[a_band][power_idx].tx_gain; - pwr_info->tpc.dsp_atten = - power_gain_table[a_band][power_idx].dsp_atten; - } - - /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/ - pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]; - power = pwr_info->requested_power + - IWL_CCK_FROM_OFDM_POWER_DIFF; - pwr_index = pwr_info->power_table_index + - IWL_CCK_FROM_OFDM_INDEX_DIFF; - base_pwr_index = pwr_info->base_power_index + - IWL_CCK_FROM_OFDM_INDEX_DIFF; - - /* stay within table range */ - pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index); - gain = power_gain_table[a_band][pwr_index].tx_gain; - dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten; - - /* fill each CCK rate's iwl3945_channel_power_info structure - * NOTE: All CCK-rate Txpwrs are the same for a given chnl! - * NOTE: CCK rates start at end of OFDM rates! */ - for (rate_index = 0; - rate_index < IWL_CCK_RATES; rate_index++) { - pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES]; - pwr_info->requested_power = power; - pwr_info->power_table_index = pwr_index; - pwr_info->base_power_index = base_pwr_index; - pwr_info->tpc.tx_gain = gain; - pwr_info->tpc.dsp_atten = dsp_atten; - } - - /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ - for (scan_tbl_index = 0; - scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) { - s32 actual_index = (scan_tbl_index == 0) ? - IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE; - iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index, - actual_index, clip_pwrs, ch_info, a_band); - } - } - - return 0; -} - -int iwl3945_hw_rxq_stop(struct iwl_priv *priv) -{ - int rc; - - iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0), 0); - rc = iwl_poll_direct_bit(priv, FH39_RSSR_STATUS, - FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); - if (rc < 0) - IWL_ERR(priv, "Can't stop Rx DMA.\n"); - - return 0; -} - -int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq) -{ - int txq_id = txq->q.id; - - struct iwl3945_shared *shared_data = priv->_3945.shared_virt; - - shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr); - - iwl_legacy_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0); - iwl_legacy_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0); - - iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), - FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT | - FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF | - FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD | - FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL | - FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE); - - /* fake read to flush all prev. writes */ - iwl_read32(priv, FH39_TSSR_CBB_BASE); - - return 0; -} - -/* - * HCMD utils - */ -static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len) -{ - switch (cmd_id) { - case REPLY_RXON: - return sizeof(struct iwl3945_rxon_cmd); - case POWER_TABLE_CMD: - return sizeof(struct iwl3945_powertable_cmd); - default: - return len; - } -} - - -static u16 iwl3945_build_addsta_hcmd(const struct iwl_legacy_addsta_cmd *cmd, - u8 *data) -{ - struct iwl3945_addsta_cmd *addsta = (struct iwl3945_addsta_cmd *)data; - addsta->mode = cmd->mode; - memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify)); - memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo)); - addsta->station_flags = cmd->station_flags; - addsta->station_flags_msk = cmd->station_flags_msk; - addsta->tid_disable_tx = cpu_to_le16(0); - addsta->rate_n_flags = cmd->rate_n_flags; - addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid; - addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid; - addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn; - - return (u16)sizeof(struct iwl3945_addsta_cmd); -} - -static int iwl3945_add_bssid_station(struct iwl_priv *priv, - const u8 *addr, u8 *sta_id_r) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - int ret; - u8 sta_id; - unsigned long flags; - - if (sta_id_r) - *sta_id_r = IWL_INVALID_STATION; - - ret = iwl_legacy_add_station_common(priv, ctx, addr, 0, NULL, &sta_id); - if (ret) { - IWL_ERR(priv, "Unable to add station %pM\n", addr); - return ret; - } - - if (sta_id_r) - *sta_id_r = sta_id; - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].used |= IWL_STA_LOCAL; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return 0; -} -static int iwl3945_manage_ibss_station(struct iwl_priv *priv, - struct ieee80211_vif *vif, bool add) -{ - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - int ret; - - if (add) { - ret = iwl3945_add_bssid_station(priv, vif->bss_conf.bssid, - &vif_priv->ibss_bssid_sta_id); - if (ret) - return ret; - - iwl3945_sync_sta(priv, vif_priv->ibss_bssid_sta_id, - (priv->band == IEEE80211_BAND_5GHZ) ? - IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP); - iwl3945_rate_scale_init(priv->hw, vif_priv->ibss_bssid_sta_id); - - return 0; - } - - return iwl_legacy_remove_station(priv, vif_priv->ibss_bssid_sta_id, - vif->bss_conf.bssid); -} - -/** - * iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table - */ -int iwl3945_init_hw_rate_table(struct iwl_priv *priv) -{ - int rc, i, index, prev_index; - struct iwl3945_rate_scaling_cmd rate_cmd = { - .reserved = {0, 0, 0}, - }; - struct iwl3945_rate_scaling_info *table = rate_cmd.table; - - for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) { - index = iwl3945_rates[i].table_rs_index; - - table[index].rate_n_flags = - iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0); - table[index].try_cnt = priv->retry_rate; - prev_index = iwl3945_get_prev_ieee_rate(i); - table[index].next_rate_index = - iwl3945_rates[prev_index].table_rs_index; - } - - switch (priv->band) { - case IEEE80211_BAND_5GHZ: - IWL_DEBUG_RATE(priv, "Select A mode rate scale\n"); - /* If one of the following CCK rates is used, - * have it fall back to the 6M OFDM rate */ - for (i = IWL_RATE_1M_INDEX_TABLE; - i <= IWL_RATE_11M_INDEX_TABLE; i++) - table[i].next_rate_index = - iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; - - /* Don't fall back to CCK rates */ - table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = - IWL_RATE_9M_INDEX_TABLE; - - /* Don't drop out of OFDM rates */ - table[IWL_RATE_6M_INDEX_TABLE].next_rate_index = - iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; - break; - - case IEEE80211_BAND_2GHZ: - IWL_DEBUG_RATE(priv, "Select B/G mode rate scale\n"); - /* If an OFDM rate is used, have it fall back to the - * 1M CCK rates */ - - if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) && - iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) { - - index = IWL_FIRST_CCK_RATE; - for (i = IWL_RATE_6M_INDEX_TABLE; - i <= IWL_RATE_54M_INDEX_TABLE; i++) - table[i].next_rate_index = - iwl3945_rates[index].table_rs_index; - - index = IWL_RATE_11M_INDEX_TABLE; - /* CCK shouldn't fall back to OFDM... */ - table[index].next_rate_index = IWL_RATE_5M_INDEX_TABLE; - } - break; - - default: - WARN_ON(1); - break; - } - - /* Update the rate scaling for control frame Tx */ - rate_cmd.table_id = 0; - rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd), - &rate_cmd); - if (rc) - return rc; - - /* Update the rate scaling for data frame Tx */ - rate_cmd.table_id = 1; - return iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd), - &rate_cmd); -} - -/* Called when initializing driver */ -int iwl3945_hw_set_hw_params(struct iwl_priv *priv) -{ - memset((void *)&priv->hw_params, 0, - sizeof(struct iwl_hw_params)); - - priv->_3945.shared_virt = - dma_alloc_coherent(&priv->pci_dev->dev, - sizeof(struct iwl3945_shared), - &priv->_3945.shared_phys, GFP_KERNEL); - if (!priv->_3945.shared_virt) { - IWL_ERR(priv, "failed to allocate pci memory\n"); - return -ENOMEM; - } - - /* Assign number of Usable TX queues */ - priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; - - priv->hw_params.tfd_size = sizeof(struct iwl3945_tfd); - priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_3K); - priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; - priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; - priv->hw_params.max_stations = IWL3945_STATION_COUNT; - priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWL3945_BROADCAST_ID; - - priv->sta_key_max_num = STA_KEY_MAX_NUM; - - priv->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR; - priv->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL; - priv->hw_params.beacon_time_tsf_bits = IWL3945_EXT_BEACON_TIME_POS; - - return 0; -} - -unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv, - struct iwl3945_frame *frame, u8 rate) -{ - struct iwl3945_tx_beacon_cmd *tx_beacon_cmd; - unsigned int frame_size; - - tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u; - memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); - - tx_beacon_cmd->tx.sta_id = - priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id; - tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - - frame_size = iwl3945_fill_beacon_frame(priv, - tx_beacon_cmd->frame, - sizeof(frame->u) - sizeof(*tx_beacon_cmd)); - - BUG_ON(frame_size > MAX_MPDU_SIZE); - tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); - - tx_beacon_cmd->tx.rate = rate; - tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK | - TX_CMD_FLG_TSF_MSK); - - /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/ - tx_beacon_cmd->tx.supp_rates[0] = - (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; - - tx_beacon_cmd->tx.supp_rates[1] = - (IWL_CCK_BASIC_RATES_MASK & 0xF); - - return sizeof(struct iwl3945_tx_beacon_cmd) + frame_size; -} - -void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv) -{ - priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx; - priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx; -} - -void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv) -{ - INIT_DELAYED_WORK(&priv->_3945.thermal_periodic, - iwl3945_bg_reg_txpower_periodic); -} - -void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv) -{ - cancel_delayed_work(&priv->_3945.thermal_periodic); -} - -/* check contents of special bootstrap uCode SRAM */ -static int iwl3945_verify_bsm(struct iwl_priv *priv) - { - __le32 *image = priv->ucode_boot.v_addr; - u32 len = priv->ucode_boot.len; - u32 reg; - u32 val; - - IWL_DEBUG_INFO(priv, "Begin verify bsm\n"); - - /* verify BSM SRAM contents */ - val = iwl_legacy_read_prph(priv, BSM_WR_DWCOUNT_REG); - for (reg = BSM_SRAM_LOWER_BOUND; - reg < BSM_SRAM_LOWER_BOUND + len; - reg += sizeof(u32), image++) { - val = iwl_legacy_read_prph(priv, reg); - if (val != le32_to_cpu(*image)) { - IWL_ERR(priv, "BSM uCode verification failed at " - "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", - BSM_SRAM_LOWER_BOUND, - reg - BSM_SRAM_LOWER_BOUND, len, - val, le32_to_cpu(*image)); - return -EIO; - } - } - - IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n"); - - return 0; -} - - -/****************************************************************************** - * - * EEPROM related functions - * - ******************************************************************************/ - -/* - * Clear the OWNER_MSK, to establish driver (instead of uCode running on - * embedded controller) as EEPROM reader; each read is a series of pulses - * to/from the EEPROM chip, not a single event, so even reads could conflict - * if they weren't arbitrated by some ownership mechanism. Here, the driver - * simply claims ownership, which should be safe when this function is called - * (i.e. before loading uCode!). - */ -static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv) -{ - _iwl_legacy_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); - return 0; -} - - -static void iwl3945_eeprom_release_semaphore(struct iwl_priv *priv) -{ - return; -} - - /** - * iwl3945_load_bsm - Load bootstrap instructions - * - * BSM operation: - * - * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program - * in special SRAM that does not power down during RFKILL. When powering back - * up after power-saving sleeps (or during initial uCode load), the BSM loads - * the bootstrap program into the on-board processor, and starts it. - * - * The bootstrap program loads (via DMA) instructions and data for a new - * program from host DRAM locations indicated by the host driver in the - * BSM_DRAM_* registers. Once the new program is loaded, it starts - * automatically. - * - * When initializing the NIC, the host driver points the BSM to the - * "initialize" uCode image. This uCode sets up some internal data, then - * notifies host via "initialize alive" that it is complete. - * - * The host then replaces the BSM_DRAM_* pointer values to point to the - * normal runtime uCode instructions and a backup uCode data cache buffer - * (filled initially with starting data values for the on-board processor), - * then triggers the "initialize" uCode to load and launch the runtime uCode, - * which begins normal operation. - * - * When doing a power-save shutdown, runtime uCode saves data SRAM into - * the backup data cache in DRAM before SRAM is powered down. - * - * When powering back up, the BSM loads the bootstrap program. This reloads - * the runtime uCode instructions and the backup data cache into SRAM, - * and re-launches the runtime uCode from where it left off. - */ -static int iwl3945_load_bsm(struct iwl_priv *priv) -{ - __le32 *image = priv->ucode_boot.v_addr; - u32 len = priv->ucode_boot.len; - dma_addr_t pinst; - dma_addr_t pdata; - u32 inst_len; - u32 data_len; - int rc; - int i; - u32 done; - u32 reg_offset; - - IWL_DEBUG_INFO(priv, "Begin load bsm\n"); - - /* make sure bootstrap program is no larger than BSM's SRAM size */ - if (len > IWL39_MAX_BSM_SIZE) - return -EINVAL; - - /* Tell bootstrap uCode where to find the "Initialize" uCode - * in host DRAM ... host DRAM physical address bits 31:0 for 3945. - * NOTE: iwl3945_initialize_alive_start() will replace these values, - * after the "initialize" uCode has run, to point to - * runtime/protocol instructions and backup data cache. */ - pinst = priv->ucode_init.p_addr; - pdata = priv->ucode_init_data.p_addr; - inst_len = priv->ucode_init.len; - data_len = priv->ucode_init_data.len; - - iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); - iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); - - /* Fill BSM memory with bootstrap instructions */ - for (reg_offset = BSM_SRAM_LOWER_BOUND; - reg_offset < BSM_SRAM_LOWER_BOUND + len; - reg_offset += sizeof(u32), image++) - _iwl_legacy_write_prph(priv, reg_offset, - le32_to_cpu(*image)); - - rc = iwl3945_verify_bsm(priv); - if (rc) - return rc; - - /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ - iwl_legacy_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); - iwl_legacy_write_prph(priv, BSM_WR_MEM_DST_REG, - IWL39_RTC_INST_LOWER_BOUND); - iwl_legacy_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); - - /* Load bootstrap code into instruction SRAM now, - * to prepare to load "initialize" uCode */ - iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG, - BSM_WR_CTRL_REG_BIT_START); - - /* Wait for load of bootstrap uCode to finish */ - for (i = 0; i < 100; i++) { - done = iwl_legacy_read_prph(priv, BSM_WR_CTRL_REG); - if (!(done & BSM_WR_CTRL_REG_BIT_START)) - break; - udelay(10); - } - if (i < 100) - IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i); - else { - IWL_ERR(priv, "BSM write did not complete!\n"); - return -EIO; - } - - /* Enable future boot loads whenever power management unit triggers it - * (e.g. when powering back up after power-save shutdown) */ - iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG, - BSM_WR_CTRL_REG_BIT_START_EN); - - return 0; -} - -static struct iwl_hcmd_ops iwl3945_hcmd = { - .rxon_assoc = iwl3945_send_rxon_assoc, - .commit_rxon = iwl3945_commit_rxon, -}; - -static struct iwl_lib_ops iwl3945_lib = { - .txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd, - .txq_free_tfd = iwl3945_hw_txq_free_tfd, - .txq_init = iwl3945_hw_tx_queue_init, - .load_ucode = iwl3945_load_bsm, - .dump_nic_error_log = iwl3945_dump_nic_error_log, - .apm_ops = { - .init = iwl3945_apm_init, - .config = iwl3945_nic_config, - }, - .eeprom_ops = { - .regulatory_bands = { - EEPROM_REGULATORY_BAND_1_CHANNELS, - EEPROM_REGULATORY_BAND_2_CHANNELS, - EEPROM_REGULATORY_BAND_3_CHANNELS, - EEPROM_REGULATORY_BAND_4_CHANNELS, - EEPROM_REGULATORY_BAND_5_CHANNELS, - EEPROM_REGULATORY_BAND_NO_HT40, - EEPROM_REGULATORY_BAND_NO_HT40, - }, - .acquire_semaphore = iwl3945_eeprom_acquire_semaphore, - .release_semaphore = iwl3945_eeprom_release_semaphore, - }, - .send_tx_power = iwl3945_send_tx_power, - .is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr, - - .debugfs_ops = { - .rx_stats_read = iwl3945_ucode_rx_stats_read, - .tx_stats_read = iwl3945_ucode_tx_stats_read, - .general_stats_read = iwl3945_ucode_general_stats_read, - }, -}; - -static const struct iwl_legacy_ops iwl3945_legacy_ops = { - .post_associate = iwl3945_post_associate, - .config_ap = iwl3945_config_ap, - .manage_ibss_station = iwl3945_manage_ibss_station, -}; - -static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = { - .get_hcmd_size = iwl3945_get_hcmd_size, - .build_addsta_hcmd = iwl3945_build_addsta_hcmd, - .request_scan = iwl3945_request_scan, - .post_scan = iwl3945_post_scan, -}; - -static const struct iwl_ops iwl3945_ops = { - .lib = &iwl3945_lib, - .hcmd = &iwl3945_hcmd, - .utils = &iwl3945_hcmd_utils, - .led = &iwl3945_led_ops, - .legacy = &iwl3945_legacy_ops, - .ieee80211_ops = &iwl3945_hw_ops, -}; - -static struct iwl_base_params iwl3945_base_params = { - .eeprom_size = IWL3945_EEPROM_IMG_SIZE, - .num_of_queues = IWL39_NUM_QUEUES, - .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL, - .set_l0s = false, - .use_bsm = true, - .led_compensation = 64, - .wd_timeout = IWL_DEF_WD_TIMEOUT, -}; - -static struct iwl_cfg iwl3945_bg_cfg = { - .name = "3945BG", - .fw_name_pre = IWL3945_FW_PRE, - .ucode_api_max = IWL3945_UCODE_API_MAX, - .ucode_api_min = IWL3945_UCODE_API_MIN, - .sku = IWL_SKU_G, - .eeprom_ver = EEPROM_3945_EEPROM_VERSION, - .ops = &iwl3945_ops, - .mod_params = &iwl3945_mod_params, - .base_params = &iwl3945_base_params, - .led_mode = IWL_LED_BLINK, -}; - -static struct iwl_cfg iwl3945_abg_cfg = { - .name = "3945ABG", - .fw_name_pre = IWL3945_FW_PRE, - .ucode_api_max = IWL3945_UCODE_API_MAX, - .ucode_api_min = IWL3945_UCODE_API_MIN, - .sku = IWL_SKU_A|IWL_SKU_G, - .eeprom_ver = EEPROM_3945_EEPROM_VERSION, - .ops = &iwl3945_ops, - .mod_params = &iwl3945_mod_params, - .base_params = &iwl3945_base_params, - .led_mode = IWL_LED_BLINK, -}; - -DEFINE_PCI_DEVICE_TABLE(iwl3945_hw_card_ids) = { - {IWL_PCI_DEVICE(0x4222, 0x1005, iwl3945_bg_cfg)}, - {IWL_PCI_DEVICE(0x4222, 0x1034, iwl3945_bg_cfg)}, - {IWL_PCI_DEVICE(0x4222, 0x1044, iwl3945_bg_cfg)}, - {IWL_PCI_DEVICE(0x4227, 0x1014, iwl3945_bg_cfg)}, - {IWL_PCI_DEVICE(0x4222, PCI_ANY_ID, iwl3945_abg_cfg)}, - {IWL_PCI_DEVICE(0x4227, PCI_ANY_ID, iwl3945_abg_cfg)}, - {0} -}; - -MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids); diff --git a/drivers/net/wireless/iwlegacy/iwl-3945.h b/drivers/net/wireless/iwlegacy/iwl-3945.h deleted file mode 100644 index b118b59b71de..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-3945.h +++ /dev/null @@ -1,308 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ -/* - * Please use this file (iwl-3945.h) for driver implementation definitions. - * Please use iwl-3945-commands.h for uCode API definitions. - * Please use iwl-3945-hw.h for hardware-related definitions. - */ - -#ifndef __iwl_3945_h__ -#define __iwl_3945_h__ - -#include <linux/pci.h> /* for struct pci_device_id */ -#include <linux/kernel.h> -#include <net/ieee80211_radiotap.h> - -/* Hardware specific file defines the PCI IDs table for that hardware module */ -extern const struct pci_device_id iwl3945_hw_card_ids[]; - -#include "iwl-csr.h" -#include "iwl-prph.h" -#include "iwl-fh.h" -#include "iwl-3945-hw.h" -#include "iwl-debug.h" -#include "iwl-power.h" -#include "iwl-dev.h" -#include "iwl-led.h" - -/* Highest firmware API version supported */ -#define IWL3945_UCODE_API_MAX 2 - -/* Lowest firmware API version supported */ -#define IWL3945_UCODE_API_MIN 1 - -#define IWL3945_FW_PRE "iwlwifi-3945-" -#define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode" -#define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api) - -/* Default noise level to report when noise measurement is not available. - * This may be because we're: - * 1) Not associated (4965, no beacon statistics being sent to driver) - * 2) Scanning (noise measurement does not apply to associated channel) - * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) - * Use default noise value of -127 ... this is below the range of measurable - * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. - * Also, -127 works better than 0 when averaging frames with/without - * noise info (e.g. averaging might be done in app); measured dBm values are - * always negative ... using a negative value as the default keeps all - * averages within an s8's (used in some apps) range of negative values. */ -#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127) - -/* Module parameters accessible from iwl-*.c */ -extern struct iwl_mod_params iwl3945_mod_params; - -struct iwl3945_rate_scale_data { - u64 data; - s32 success_counter; - s32 success_ratio; - s32 counter; - s32 average_tpt; - unsigned long stamp; -}; - -struct iwl3945_rs_sta { - spinlock_t lock; - struct iwl_priv *priv; - s32 *expected_tpt; - unsigned long last_partial_flush; - unsigned long last_flush; - u32 flush_time; - u32 last_tx_packets; - u32 tx_packets; - u8 tgg; - u8 flush_pending; - u8 start_rate; - struct timer_list rate_scale_flush; - struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945]; -#ifdef CONFIG_MAC80211_DEBUGFS - struct dentry *rs_sta_dbgfs_stats_table_file; -#endif - - /* used to be in sta_info */ - int last_txrate_idx; -}; - - -/* - * The common struct MUST be first because it is shared between - * 3945 and 4965! - */ -struct iwl3945_sta_priv { - struct iwl_station_priv_common common; - struct iwl3945_rs_sta rs_sta; -}; - -enum iwl3945_antenna { - IWL_ANTENNA_DIVERSITY, - IWL_ANTENNA_MAIN, - IWL_ANTENNA_AUX -}; - -/* - * RTS threshold here is total size [2347] minus 4 FCS bytes - * Per spec: - * a value of 0 means RTS on all data/management packets - * a value > max MSDU size means no RTS - * else RTS for data/management frames where MPDU is larger - * than RTS value. - */ -#define DEFAULT_RTS_THRESHOLD 2347U -#define MIN_RTS_THRESHOLD 0U -#define MAX_RTS_THRESHOLD 2347U -#define MAX_MSDU_SIZE 2304U -#define MAX_MPDU_SIZE 2346U -#define DEFAULT_BEACON_INTERVAL 100U -#define DEFAULT_SHORT_RETRY_LIMIT 7U -#define DEFAULT_LONG_RETRY_LIMIT 4U - -#define IWL_TX_FIFO_AC0 0 -#define IWL_TX_FIFO_AC1 1 -#define IWL_TX_FIFO_AC2 2 -#define IWL_TX_FIFO_AC3 3 -#define IWL_TX_FIFO_HCCA_1 5 -#define IWL_TX_FIFO_HCCA_2 6 -#define IWL_TX_FIFO_NONE 7 - -#define IEEE80211_DATA_LEN 2304 -#define IEEE80211_4ADDR_LEN 30 -#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) -#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) - -struct iwl3945_frame { - union { - struct ieee80211_hdr frame; - struct iwl3945_tx_beacon_cmd beacon; - u8 raw[IEEE80211_FRAME_LEN]; - u8 cmd[360]; - } u; - struct list_head list; -}; - -#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) -#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) -#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) - -#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 -#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 -#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 - -#define IWL_SUPPORTED_RATES_IE_LEN 8 - -#define SCAN_INTERVAL 100 - -#define MAX_TID_COUNT 9 - -#define IWL_INVALID_RATE 0xFF -#define IWL_INVALID_VALUE -1 - -#define STA_PS_STATUS_WAKE 0 -#define STA_PS_STATUS_SLEEP 1 - -struct iwl3945_ibss_seq { - u8 mac[ETH_ALEN]; - u16 seq_num; - u16 frag_num; - unsigned long packet_time; - struct list_head list; -}; - -#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\ - x->u.rx_frame.stats.payload + \ - x->u.rx_frame.stats.phy_count)) -#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\ - IWL_RX_HDR(x)->payload + \ - le16_to_cpu(IWL_RX_HDR(x)->len))) -#define IWL_RX_STATS(x) (&x->u.rx_frame.stats) -#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload) - - -/****************************************************************************** - * - * Functions implemented in iwl3945-base.c which are forward declared here - * for use by iwl-*.c - * - *****************************************************************************/ -extern int iwl3945_calc_db_from_ratio(int sig_ratio); -extern void iwl3945_rx_replenish(void *data); -extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq); -extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, int left); -extern int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log, - char **buf, bool display); -extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv); - -/****************************************************************************** - * - * Functions implemented in iwl-[34]*.c which are forward declared here - * for use by iwl3945-base.c - * - * NOTE: The implementation of these functions are hardware specific - * which is why they are in the hardware specific files (vs. iwl-base.c) - * - * Naming convention -- - * iwl3945_ <-- Its part of iwlwifi (should be changed to iwl3945_) - * iwl3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW) - * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) - * iwl3945_bg_ <-- Called from work queue context - * iwl3945_mac_ <-- mac80211 callback - * - ****************************************************************************/ -extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv); -extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv); -extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv); -extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv); -extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv); -extern int iwl3945_hw_nic_init(struct iwl_priv *priv); -extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv); -extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv); -extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv); -extern int iwl3945_hw_nic_reset(struct iwl_priv *priv); -extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - dma_addr_t addr, u16 len, - u8 reset, u8 pad); -extern void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, - struct iwl_tx_queue *txq); -extern int iwl3945_hw_get_temperature(struct iwl_priv *priv); -extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, - struct iwl_tx_queue *txq); -extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv, - struct iwl3945_frame *frame, u8 rate); -void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct ieee80211_tx_info *info, - struct ieee80211_hdr *hdr, - int sta_id, int tx_id); -extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv); -extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power); -extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -void iwl3945_reply_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -extern void iwl3945_disable_events(struct iwl_priv *priv); -extern int iwl4965_get_temperature(const struct iwl_priv *priv); -extern void iwl3945_post_associate(struct iwl_priv *priv); -extern void iwl3945_config_ap(struct iwl_priv *priv); - -extern int iwl3945_commit_rxon(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); - -/** - * iwl3945_hw_find_station - Find station id for a given BSSID - * @bssid: MAC address of station ID to find - * - * NOTE: This should not be hardware specific but the code has - * not yet been merged into a single common layer for managing the - * station tables. - */ -extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid); - -extern struct ieee80211_ops iwl3945_hw_ops; - -/* - * Forward declare iwl-3945.c functions for iwl3945-base.c - */ -extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv); -extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv); -extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv); -extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv); - -extern const struct iwl_channel_info *iwl3945_get_channel_info( - const struct iwl_priv *priv, enum ieee80211_band band, u16 channel); - -extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate); - -/* scanning */ -int iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif); -void iwl3945_post_scan(struct iwl_priv *priv); - -/* rates */ -extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945]; - -/* Requires full declaration of iwl_priv before including */ -#include "iwl-io.h" - -#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-calib.h b/drivers/net/wireless/iwlegacy/iwl-4965-calib.h deleted file mode 100644 index f46c80e6e005..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-calib.h +++ /dev/null @@ -1,75 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - *****************************************************************************/ -#ifndef __iwl_4965_calib_h__ -#define __iwl_4965_calib_h__ - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-commands.h" - -void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp); -void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp); -void iwl4965_init_sensitivity(struct iwl_priv *priv); -void iwl4965_reset_run_time_calib(struct iwl_priv *priv); -void iwl4965_calib_free_results(struct iwl_priv *priv); - -#endif /* __iwl_4965_calib_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.c deleted file mode 100644 index 1c93665766e4..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.c +++ /dev/null @@ -1,774 +0,0 @@ -/****************************************************************************** -* -* GPL LICENSE SUMMARY -* -* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. -* -* This program is free software; you can redistribute it and/or modify -* it under the terms of version 2 of the GNU General Public License as -* published by the Free Software Foundation. -* -* This program is distributed in the hope that it will be useful, but -* WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -* General Public License for more details. -* -* You should have received a copy of the GNU General Public License -* along with this program; if not, write to the Free Software -* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, -* USA -* -* The full GNU General Public License is included in this distribution -* in the file called LICENSE.GPL. -* -* Contact Information: -* Intel Linux Wireless <ilw@linux.intel.com> -* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 -*****************************************************************************/ -#include "iwl-4965.h" -#include "iwl-4965-debugfs.h" - -static const char *fmt_value = " %-30s %10u\n"; -static const char *fmt_table = " %-30s %10u %10u %10u %10u\n"; -static const char *fmt_header = - "%-32s current cumulative delta max\n"; - -static int iwl4965_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz) -{ - int p = 0; - u32 flag; - - flag = le32_to_cpu(priv->_4965.statistics.flag); - - p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag); - if (flag & UCODE_STATISTICS_CLEAR_MSK) - p += scnprintf(buf + p, bufsz - p, - "\tStatistics have been cleared\n"); - p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n", - (flag & UCODE_STATISTICS_FREQUENCY_MSK) - ? "2.4 GHz" : "5.2 GHz"); - p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n", - (flag & UCODE_STATISTICS_NARROW_BAND_MSK) - ? "enabled" : "disabled"); - - return p; -} - -ssize_t iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - int pos = 0; - char *buf; - int bufsz = sizeof(struct statistics_rx_phy) * 40 + - sizeof(struct statistics_rx_non_phy) * 40 + - sizeof(struct statistics_rx_ht_phy) * 40 + 400; - ssize_t ret; - struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm; - struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck; - struct statistics_rx_non_phy *general, *accum_general; - struct statistics_rx_non_phy *delta_general, *max_general; - struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht; - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - /* - * the statistic information display here is based on - * the last statistics notification from uCode - * might not reflect the current uCode activity - */ - ofdm = &priv->_4965.statistics.rx.ofdm; - cck = &priv->_4965.statistics.rx.cck; - general = &priv->_4965.statistics.rx.general; - ht = &priv->_4965.statistics.rx.ofdm_ht; - accum_ofdm = &priv->_4965.accum_statistics.rx.ofdm; - accum_cck = &priv->_4965.accum_statistics.rx.cck; - accum_general = &priv->_4965.accum_statistics.rx.general; - accum_ht = &priv->_4965.accum_statistics.rx.ofdm_ht; - delta_ofdm = &priv->_4965.delta_statistics.rx.ofdm; - delta_cck = &priv->_4965.delta_statistics.rx.cck; - delta_general = &priv->_4965.delta_statistics.rx.general; - delta_ht = &priv->_4965.delta_statistics.rx.ofdm_ht; - max_ofdm = &priv->_4965.max_delta.rx.ofdm; - max_cck = &priv->_4965.max_delta.rx.cck; - max_general = &priv->_4965.max_delta.rx.general; - max_ht = &priv->_4965.max_delta.rx.ofdm_ht; - - pos += iwl4965_statistics_flag(priv, buf, bufsz); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_header, "Statistics_Rx - OFDM:"); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "ina_cnt:", - le32_to_cpu(ofdm->ina_cnt), - accum_ofdm->ina_cnt, - delta_ofdm->ina_cnt, max_ofdm->ina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "fina_cnt:", - le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt, - delta_ofdm->fina_cnt, max_ofdm->fina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "plcp_err:", - le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err, - delta_ofdm->plcp_err, max_ofdm->plcp_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "crc32_err:", - le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err, - delta_ofdm->crc32_err, max_ofdm->crc32_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "overrun_err:", - le32_to_cpu(ofdm->overrun_err), - accum_ofdm->overrun_err, delta_ofdm->overrun_err, - max_ofdm->overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "early_overrun_err:", - le32_to_cpu(ofdm->early_overrun_err), - accum_ofdm->early_overrun_err, - delta_ofdm->early_overrun_err, - max_ofdm->early_overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "crc32_good:", - le32_to_cpu(ofdm->crc32_good), - accum_ofdm->crc32_good, delta_ofdm->crc32_good, - max_ofdm->crc32_good); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "false_alarm_cnt:", - le32_to_cpu(ofdm->false_alarm_cnt), - accum_ofdm->false_alarm_cnt, - delta_ofdm->false_alarm_cnt, - max_ofdm->false_alarm_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "fina_sync_err_cnt:", - le32_to_cpu(ofdm->fina_sync_err_cnt), - accum_ofdm->fina_sync_err_cnt, - delta_ofdm->fina_sync_err_cnt, - max_ofdm->fina_sync_err_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sfd_timeout:", - le32_to_cpu(ofdm->sfd_timeout), - accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout, - max_ofdm->sfd_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "fina_timeout:", - le32_to_cpu(ofdm->fina_timeout), - accum_ofdm->fina_timeout, delta_ofdm->fina_timeout, - max_ofdm->fina_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "unresponded_rts:", - le32_to_cpu(ofdm->unresponded_rts), - accum_ofdm->unresponded_rts, - delta_ofdm->unresponded_rts, - max_ofdm->unresponded_rts); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "rxe_frame_lmt_ovrun:", - le32_to_cpu(ofdm->rxe_frame_limit_overrun), - accum_ofdm->rxe_frame_limit_overrun, - delta_ofdm->rxe_frame_limit_overrun, - max_ofdm->rxe_frame_limit_overrun); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sent_ack_cnt:", - le32_to_cpu(ofdm->sent_ack_cnt), - accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt, - max_ofdm->sent_ack_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sent_cts_cnt:", - le32_to_cpu(ofdm->sent_cts_cnt), - accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt, - max_ofdm->sent_cts_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sent_ba_rsp_cnt:", - le32_to_cpu(ofdm->sent_ba_rsp_cnt), - accum_ofdm->sent_ba_rsp_cnt, - delta_ofdm->sent_ba_rsp_cnt, - max_ofdm->sent_ba_rsp_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "dsp_self_kill:", - le32_to_cpu(ofdm->dsp_self_kill), - accum_ofdm->dsp_self_kill, - delta_ofdm->dsp_self_kill, - max_ofdm->dsp_self_kill); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "mh_format_err:", - le32_to_cpu(ofdm->mh_format_err), - accum_ofdm->mh_format_err, - delta_ofdm->mh_format_err, - max_ofdm->mh_format_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "re_acq_main_rssi_sum:", - le32_to_cpu(ofdm->re_acq_main_rssi_sum), - accum_ofdm->re_acq_main_rssi_sum, - delta_ofdm->re_acq_main_rssi_sum, - max_ofdm->re_acq_main_rssi_sum); - - pos += scnprintf(buf + pos, bufsz - pos, - fmt_header, "Statistics_Rx - CCK:"); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "ina_cnt:", - le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt, - delta_cck->ina_cnt, max_cck->ina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "fina_cnt:", - le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt, - delta_cck->fina_cnt, max_cck->fina_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "plcp_err:", - le32_to_cpu(cck->plcp_err), accum_cck->plcp_err, - delta_cck->plcp_err, max_cck->plcp_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "crc32_err:", - le32_to_cpu(cck->crc32_err), accum_cck->crc32_err, - delta_cck->crc32_err, max_cck->crc32_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "overrun_err:", - le32_to_cpu(cck->overrun_err), - accum_cck->overrun_err, delta_cck->overrun_err, - max_cck->overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "early_overrun_err:", - le32_to_cpu(cck->early_overrun_err), - accum_cck->early_overrun_err, - delta_cck->early_overrun_err, - max_cck->early_overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "crc32_good:", - le32_to_cpu(cck->crc32_good), accum_cck->crc32_good, - delta_cck->crc32_good, max_cck->crc32_good); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "false_alarm_cnt:", - le32_to_cpu(cck->false_alarm_cnt), - accum_cck->false_alarm_cnt, - delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "fina_sync_err_cnt:", - le32_to_cpu(cck->fina_sync_err_cnt), - accum_cck->fina_sync_err_cnt, - delta_cck->fina_sync_err_cnt, - max_cck->fina_sync_err_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sfd_timeout:", - le32_to_cpu(cck->sfd_timeout), - accum_cck->sfd_timeout, delta_cck->sfd_timeout, - max_cck->sfd_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "fina_timeout:", - le32_to_cpu(cck->fina_timeout), - accum_cck->fina_timeout, delta_cck->fina_timeout, - max_cck->fina_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "unresponded_rts:", - le32_to_cpu(cck->unresponded_rts), - accum_cck->unresponded_rts, delta_cck->unresponded_rts, - max_cck->unresponded_rts); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "rxe_frame_lmt_ovrun:", - le32_to_cpu(cck->rxe_frame_limit_overrun), - accum_cck->rxe_frame_limit_overrun, - delta_cck->rxe_frame_limit_overrun, - max_cck->rxe_frame_limit_overrun); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sent_ack_cnt:", - le32_to_cpu(cck->sent_ack_cnt), - accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt, - max_cck->sent_ack_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sent_cts_cnt:", - le32_to_cpu(cck->sent_cts_cnt), - accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt, - max_cck->sent_cts_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sent_ba_rsp_cnt:", - le32_to_cpu(cck->sent_ba_rsp_cnt), - accum_cck->sent_ba_rsp_cnt, - delta_cck->sent_ba_rsp_cnt, - max_cck->sent_ba_rsp_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "dsp_self_kill:", - le32_to_cpu(cck->dsp_self_kill), - accum_cck->dsp_self_kill, delta_cck->dsp_self_kill, - max_cck->dsp_self_kill); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "mh_format_err:", - le32_to_cpu(cck->mh_format_err), - accum_cck->mh_format_err, delta_cck->mh_format_err, - max_cck->mh_format_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "re_acq_main_rssi_sum:", - le32_to_cpu(cck->re_acq_main_rssi_sum), - accum_cck->re_acq_main_rssi_sum, - delta_cck->re_acq_main_rssi_sum, - max_cck->re_acq_main_rssi_sum); - - pos += scnprintf(buf + pos, bufsz - pos, - fmt_header, "Statistics_Rx - GENERAL:"); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "bogus_cts:", - le32_to_cpu(general->bogus_cts), - accum_general->bogus_cts, delta_general->bogus_cts, - max_general->bogus_cts); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "bogus_ack:", - le32_to_cpu(general->bogus_ack), - accum_general->bogus_ack, delta_general->bogus_ack, - max_general->bogus_ack); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "non_bssid_frames:", - le32_to_cpu(general->non_bssid_frames), - accum_general->non_bssid_frames, - delta_general->non_bssid_frames, - max_general->non_bssid_frames); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "filtered_frames:", - le32_to_cpu(general->filtered_frames), - accum_general->filtered_frames, - delta_general->filtered_frames, - max_general->filtered_frames); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "non_channel_beacons:", - le32_to_cpu(general->non_channel_beacons), - accum_general->non_channel_beacons, - delta_general->non_channel_beacons, - max_general->non_channel_beacons); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "channel_beacons:", - le32_to_cpu(general->channel_beacons), - accum_general->channel_beacons, - delta_general->channel_beacons, - max_general->channel_beacons); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "num_missed_bcon:", - le32_to_cpu(general->num_missed_bcon), - accum_general->num_missed_bcon, - delta_general->num_missed_bcon, - max_general->num_missed_bcon); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "adc_rx_saturation_time:", - le32_to_cpu(general->adc_rx_saturation_time), - accum_general->adc_rx_saturation_time, - delta_general->adc_rx_saturation_time, - max_general->adc_rx_saturation_time); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "ina_detect_search_tm:", - le32_to_cpu(general->ina_detection_search_time), - accum_general->ina_detection_search_time, - delta_general->ina_detection_search_time, - max_general->ina_detection_search_time); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_silence_rssi_a:", - le32_to_cpu(general->beacon_silence_rssi_a), - accum_general->beacon_silence_rssi_a, - delta_general->beacon_silence_rssi_a, - max_general->beacon_silence_rssi_a); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_silence_rssi_b:", - le32_to_cpu(general->beacon_silence_rssi_b), - accum_general->beacon_silence_rssi_b, - delta_general->beacon_silence_rssi_b, - max_general->beacon_silence_rssi_b); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_silence_rssi_c:", - le32_to_cpu(general->beacon_silence_rssi_c), - accum_general->beacon_silence_rssi_c, - delta_general->beacon_silence_rssi_c, - max_general->beacon_silence_rssi_c); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "interference_data_flag:", - le32_to_cpu(general->interference_data_flag), - accum_general->interference_data_flag, - delta_general->interference_data_flag, - max_general->interference_data_flag); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "channel_load:", - le32_to_cpu(general->channel_load), - accum_general->channel_load, - delta_general->channel_load, - max_general->channel_load); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "dsp_false_alarms:", - le32_to_cpu(general->dsp_false_alarms), - accum_general->dsp_false_alarms, - delta_general->dsp_false_alarms, - max_general->dsp_false_alarms); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_rssi_a:", - le32_to_cpu(general->beacon_rssi_a), - accum_general->beacon_rssi_a, - delta_general->beacon_rssi_a, - max_general->beacon_rssi_a); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_rssi_b:", - le32_to_cpu(general->beacon_rssi_b), - accum_general->beacon_rssi_b, - delta_general->beacon_rssi_b, - max_general->beacon_rssi_b); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_rssi_c:", - le32_to_cpu(general->beacon_rssi_c), - accum_general->beacon_rssi_c, - delta_general->beacon_rssi_c, - max_general->beacon_rssi_c); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_energy_a:", - le32_to_cpu(general->beacon_energy_a), - accum_general->beacon_energy_a, - delta_general->beacon_energy_a, - max_general->beacon_energy_a); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_energy_b:", - le32_to_cpu(general->beacon_energy_b), - accum_general->beacon_energy_b, - delta_general->beacon_energy_b, - max_general->beacon_energy_b); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "beacon_energy_c:", - le32_to_cpu(general->beacon_energy_c), - accum_general->beacon_energy_c, - delta_general->beacon_energy_c, - max_general->beacon_energy_c); - - pos += scnprintf(buf + pos, bufsz - pos, - fmt_header, "Statistics_Rx - OFDM_HT:"); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "plcp_err:", - le32_to_cpu(ht->plcp_err), accum_ht->plcp_err, - delta_ht->plcp_err, max_ht->plcp_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "overrun_err:", - le32_to_cpu(ht->overrun_err), accum_ht->overrun_err, - delta_ht->overrun_err, max_ht->overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "early_overrun_err:", - le32_to_cpu(ht->early_overrun_err), - accum_ht->early_overrun_err, - delta_ht->early_overrun_err, - max_ht->early_overrun_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "crc32_good:", - le32_to_cpu(ht->crc32_good), accum_ht->crc32_good, - delta_ht->crc32_good, max_ht->crc32_good); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "crc32_err:", - le32_to_cpu(ht->crc32_err), accum_ht->crc32_err, - delta_ht->crc32_err, max_ht->crc32_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "mh_format_err:", - le32_to_cpu(ht->mh_format_err), - accum_ht->mh_format_err, - delta_ht->mh_format_err, max_ht->mh_format_err); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg_crc32_good:", - le32_to_cpu(ht->agg_crc32_good), - accum_ht->agg_crc32_good, - delta_ht->agg_crc32_good, max_ht->agg_crc32_good); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg_mpdu_cnt:", - le32_to_cpu(ht->agg_mpdu_cnt), - accum_ht->agg_mpdu_cnt, - delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg_cnt:", - le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt, - delta_ht->agg_cnt, max_ht->agg_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "unsupport_mcs:", - le32_to_cpu(ht->unsupport_mcs), - accum_ht->unsupport_mcs, - delta_ht->unsupport_mcs, max_ht->unsupport_mcs); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -ssize_t iwl4965_ucode_tx_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - int pos = 0; - char *buf; - int bufsz = (sizeof(struct statistics_tx) * 48) + 250; - ssize_t ret; - struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx; - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - /* the statistic information display here is based on - * the last statistics notification from uCode - * might not reflect the current uCode activity - */ - tx = &priv->_4965.statistics.tx; - accum_tx = &priv->_4965.accum_statistics.tx; - delta_tx = &priv->_4965.delta_statistics.tx; - max_tx = &priv->_4965.max_delta.tx; - - pos += iwl4965_statistics_flag(priv, buf, bufsz); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_header, "Statistics_Tx:"); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "preamble:", - le32_to_cpu(tx->preamble_cnt), - accum_tx->preamble_cnt, - delta_tx->preamble_cnt, max_tx->preamble_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "rx_detected_cnt:", - le32_to_cpu(tx->rx_detected_cnt), - accum_tx->rx_detected_cnt, - delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "bt_prio_defer_cnt:", - le32_to_cpu(tx->bt_prio_defer_cnt), - accum_tx->bt_prio_defer_cnt, - delta_tx->bt_prio_defer_cnt, - max_tx->bt_prio_defer_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "bt_prio_kill_cnt:", - le32_to_cpu(tx->bt_prio_kill_cnt), - accum_tx->bt_prio_kill_cnt, - delta_tx->bt_prio_kill_cnt, - max_tx->bt_prio_kill_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "few_bytes_cnt:", - le32_to_cpu(tx->few_bytes_cnt), - accum_tx->few_bytes_cnt, - delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "cts_timeout:", - le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout, - delta_tx->cts_timeout, max_tx->cts_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "ack_timeout:", - le32_to_cpu(tx->ack_timeout), - accum_tx->ack_timeout, - delta_tx->ack_timeout, max_tx->ack_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "expected_ack_cnt:", - le32_to_cpu(tx->expected_ack_cnt), - accum_tx->expected_ack_cnt, - delta_tx->expected_ack_cnt, - max_tx->expected_ack_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "actual_ack_cnt:", - le32_to_cpu(tx->actual_ack_cnt), - accum_tx->actual_ack_cnt, - delta_tx->actual_ack_cnt, - max_tx->actual_ack_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "dump_msdu_cnt:", - le32_to_cpu(tx->dump_msdu_cnt), - accum_tx->dump_msdu_cnt, - delta_tx->dump_msdu_cnt, - max_tx->dump_msdu_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "abort_nxt_frame_mismatch:", - le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt), - accum_tx->burst_abort_next_frame_mismatch_cnt, - delta_tx->burst_abort_next_frame_mismatch_cnt, - max_tx->burst_abort_next_frame_mismatch_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "abort_missing_nxt_frame:", - le32_to_cpu(tx->burst_abort_missing_next_frame_cnt), - accum_tx->burst_abort_missing_next_frame_cnt, - delta_tx->burst_abort_missing_next_frame_cnt, - max_tx->burst_abort_missing_next_frame_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "cts_timeout_collision:", - le32_to_cpu(tx->cts_timeout_collision), - accum_tx->cts_timeout_collision, - delta_tx->cts_timeout_collision, - max_tx->cts_timeout_collision); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "ack_ba_timeout_collision:", - le32_to_cpu(tx->ack_or_ba_timeout_collision), - accum_tx->ack_or_ba_timeout_collision, - delta_tx->ack_or_ba_timeout_collision, - max_tx->ack_or_ba_timeout_collision); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg ba_timeout:", - le32_to_cpu(tx->agg.ba_timeout), - accum_tx->agg.ba_timeout, - delta_tx->agg.ba_timeout, - max_tx->agg.ba_timeout); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg ba_resched_frames:", - le32_to_cpu(tx->agg.ba_reschedule_frames), - accum_tx->agg.ba_reschedule_frames, - delta_tx->agg.ba_reschedule_frames, - max_tx->agg.ba_reschedule_frames); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg scd_query_agg_frame:", - le32_to_cpu(tx->agg.scd_query_agg_frame_cnt), - accum_tx->agg.scd_query_agg_frame_cnt, - delta_tx->agg.scd_query_agg_frame_cnt, - max_tx->agg.scd_query_agg_frame_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg scd_query_no_agg:", - le32_to_cpu(tx->agg.scd_query_no_agg), - accum_tx->agg.scd_query_no_agg, - delta_tx->agg.scd_query_no_agg, - max_tx->agg.scd_query_no_agg); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg scd_query_agg:", - le32_to_cpu(tx->agg.scd_query_agg), - accum_tx->agg.scd_query_agg, - delta_tx->agg.scd_query_agg, - max_tx->agg.scd_query_agg); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg scd_query_mismatch:", - le32_to_cpu(tx->agg.scd_query_mismatch), - accum_tx->agg.scd_query_mismatch, - delta_tx->agg.scd_query_mismatch, - max_tx->agg.scd_query_mismatch); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg frame_not_ready:", - le32_to_cpu(tx->agg.frame_not_ready), - accum_tx->agg.frame_not_ready, - delta_tx->agg.frame_not_ready, - max_tx->agg.frame_not_ready); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg underrun:", - le32_to_cpu(tx->agg.underrun), - accum_tx->agg.underrun, - delta_tx->agg.underrun, max_tx->agg.underrun); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg bt_prio_kill:", - le32_to_cpu(tx->agg.bt_prio_kill), - accum_tx->agg.bt_prio_kill, - delta_tx->agg.bt_prio_kill, - max_tx->agg.bt_prio_kill); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "agg rx_ba_rsp_cnt:", - le32_to_cpu(tx->agg.rx_ba_rsp_cnt), - accum_tx->agg.rx_ba_rsp_cnt, - delta_tx->agg.rx_ba_rsp_cnt, - max_tx->agg.rx_ba_rsp_cnt); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -ssize_t -iwl4965_ucode_general_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - int pos = 0; - char *buf; - int bufsz = sizeof(struct statistics_general) * 10 + 300; - ssize_t ret; - struct statistics_general_common *general, *accum_general; - struct statistics_general_common *delta_general, *max_general; - struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg; - struct statistics_div *div, *accum_div, *delta_div, *max_div; - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - /* the statistic information display here is based on - * the last statistics notification from uCode - * might not reflect the current uCode activity - */ - general = &priv->_4965.statistics.general.common; - dbg = &priv->_4965.statistics.general.common.dbg; - div = &priv->_4965.statistics.general.common.div; - accum_general = &priv->_4965.accum_statistics.general.common; - accum_dbg = &priv->_4965.accum_statistics.general.common.dbg; - accum_div = &priv->_4965.accum_statistics.general.common.div; - delta_general = &priv->_4965.delta_statistics.general.common; - max_general = &priv->_4965.max_delta.general.common; - delta_dbg = &priv->_4965.delta_statistics.general.common.dbg; - max_dbg = &priv->_4965.max_delta.general.common.dbg; - delta_div = &priv->_4965.delta_statistics.general.common.div; - max_div = &priv->_4965.max_delta.general.common.div; - - pos += iwl4965_statistics_flag(priv, buf, bufsz); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_header, "Statistics_General:"); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_value, "temperature:", - le32_to_cpu(general->temperature)); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_value, "ttl_timestamp:", - le32_to_cpu(general->ttl_timestamp)); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "burst_check:", - le32_to_cpu(dbg->burst_check), - accum_dbg->burst_check, - delta_dbg->burst_check, max_dbg->burst_check); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "burst_count:", - le32_to_cpu(dbg->burst_count), - accum_dbg->burst_count, - delta_dbg->burst_count, max_dbg->burst_count); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "wait_for_silence_timeout_count:", - le32_to_cpu(dbg->wait_for_silence_timeout_cnt), - accum_dbg->wait_for_silence_timeout_cnt, - delta_dbg->wait_for_silence_timeout_cnt, - max_dbg->wait_for_silence_timeout_cnt); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "sleep_time:", - le32_to_cpu(general->sleep_time), - accum_general->sleep_time, - delta_general->sleep_time, max_general->sleep_time); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "slots_out:", - le32_to_cpu(general->slots_out), - accum_general->slots_out, - delta_general->slots_out, max_general->slots_out); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "slots_idle:", - le32_to_cpu(general->slots_idle), - accum_general->slots_idle, - delta_general->slots_idle, max_general->slots_idle); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "tx_on_a:", - le32_to_cpu(div->tx_on_a), accum_div->tx_on_a, - delta_div->tx_on_a, max_div->tx_on_a); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "tx_on_b:", - le32_to_cpu(div->tx_on_b), accum_div->tx_on_b, - delta_div->tx_on_b, max_div->tx_on_b); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "exec_time:", - le32_to_cpu(div->exec_time), accum_div->exec_time, - delta_div->exec_time, max_div->exec_time); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "probe_time:", - le32_to_cpu(div->probe_time), accum_div->probe_time, - delta_div->probe_time, max_div->probe_time); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "rx_enable_counter:", - le32_to_cpu(general->rx_enable_counter), - accum_general->rx_enable_counter, - delta_general->rx_enable_counter, - max_general->rx_enable_counter); - pos += scnprintf(buf + pos, bufsz - pos, - fmt_table, "num_of_sos_states:", - le32_to_cpu(general->num_of_sos_states), - accum_general->num_of_sos_states, - delta_general->num_of_sos_states, - max_general->num_of_sos_states); - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.h b/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.h deleted file mode 100644 index 6c8e35361a9e..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.h +++ /dev/null @@ -1,59 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-debug.h" - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS -ssize_t iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos); -ssize_t iwl4965_ucode_tx_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos); -ssize_t iwl4965_ucode_general_stats_read(struct file *file, - char __user *user_buf, size_t count, loff_t *ppos); -#else -static ssize_t -iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - return 0; -} -static ssize_t -iwl4965_ucode_tx_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - return 0; -} -static ssize_t -iwl4965_ucode_general_stats_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - return 0; -} -#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-eeprom.c b/drivers/net/wireless/iwlegacy/iwl-4965-eeprom.c deleted file mode 100644 index cb9baab1ff7d..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-eeprom.c +++ /dev/null @@ -1,154 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - *****************************************************************************/ - - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/init.h> - -#include <net/mac80211.h> - -#include "iwl-commands.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-debug.h" -#include "iwl-4965.h" -#include "iwl-io.h" - -/****************************************************************************** - * - * EEPROM related functions - * -******************************************************************************/ - -/* - * The device's EEPROM semaphore prevents conflicts between driver and uCode - * when accessing the EEPROM; each access is a series of pulses to/from the - * EEPROM chip, not a single event, so even reads could conflict if they - * weren't arbitrated by the semaphore. - */ -int iwl4965_eeprom_acquire_semaphore(struct iwl_priv *priv) -{ - u16 count; - int ret; - - for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) { - /* Request semaphore */ - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); - - /* See if we got it */ - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, - EEPROM_SEM_TIMEOUT); - if (ret >= 0) { - IWL_DEBUG_IO(priv, - "Acquired semaphore after %d tries.\n", - count+1); - return ret; - } - } - - return ret; -} - -void iwl4965_eeprom_release_semaphore(struct iwl_priv *priv) -{ - iwl_legacy_clear_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); - -} - -int iwl4965_eeprom_check_version(struct iwl_priv *priv) -{ - u16 eeprom_ver; - u16 calib_ver; - - eeprom_ver = iwl_legacy_eeprom_query16(priv, EEPROM_VERSION); - calib_ver = iwl_legacy_eeprom_query16(priv, - EEPROM_4965_CALIB_VERSION_OFFSET); - - if (eeprom_ver < priv->cfg->eeprom_ver || - calib_ver < priv->cfg->eeprom_calib_ver) - goto err; - - IWL_INFO(priv, "device EEPROM VER=0x%x, CALIB=0x%x\n", - eeprom_ver, calib_ver); - - return 0; -err: - IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x " - "CALIB=0x%x < 0x%x\n", - eeprom_ver, priv->cfg->eeprom_ver, - calib_ver, priv->cfg->eeprom_calib_ver); - return -EINVAL; - -} - -void iwl4965_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac) -{ - const u8 *addr = iwl_legacy_eeprom_query_addr(priv, - EEPROM_MAC_ADDRESS); - memcpy(mac, addr, ETH_ALEN); -} diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-hw.h b/drivers/net/wireless/iwlegacy/iwl-4965-hw.h deleted file mode 100644 index fc6fa2886d9c..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-hw.h +++ /dev/null @@ -1,811 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -/* - * Please use this file (iwl-4965-hw.h) only for hardware-related definitions. - * Use iwl-commands.h for uCode API definitions. - * Use iwl-dev.h for driver implementation definitions. - */ - -#ifndef __iwl_4965_hw_h__ -#define __iwl_4965_hw_h__ - -#include "iwl-fh.h" - -/* EEPROM */ -#define IWL4965_EEPROM_IMG_SIZE 1024 - -/* - * uCode queue management definitions ... - * The first queue used for block-ack aggregation is #7 (4965 only). - * All block-ack aggregation queues should map to Tx DMA/FIFO channel 7. - */ -#define IWL49_FIRST_AMPDU_QUEUE 7 - -/* Sizes and addresses for instruction and data memory (SRAM) in - * 4965's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */ -#define IWL49_RTC_INST_LOWER_BOUND (0x000000) -#define IWL49_RTC_INST_UPPER_BOUND (0x018000) - -#define IWL49_RTC_DATA_LOWER_BOUND (0x800000) -#define IWL49_RTC_DATA_UPPER_BOUND (0x80A000) - -#define IWL49_RTC_INST_SIZE (IWL49_RTC_INST_UPPER_BOUND - \ - IWL49_RTC_INST_LOWER_BOUND) -#define IWL49_RTC_DATA_SIZE (IWL49_RTC_DATA_UPPER_BOUND - \ - IWL49_RTC_DATA_LOWER_BOUND) - -#define IWL49_MAX_INST_SIZE IWL49_RTC_INST_SIZE -#define IWL49_MAX_DATA_SIZE IWL49_RTC_DATA_SIZE - -/* Size of uCode instruction memory in bootstrap state machine */ -#define IWL49_MAX_BSM_SIZE BSM_SRAM_SIZE - -static inline int iwl4965_hw_valid_rtc_data_addr(u32 addr) -{ - return (addr >= IWL49_RTC_DATA_LOWER_BOUND) && - (addr < IWL49_RTC_DATA_UPPER_BOUND); -} - -/********************* START TEMPERATURE *************************************/ - -/** - * 4965 temperature calculation. - * - * The driver must calculate the device temperature before calculating - * a txpower setting (amplifier gain is temperature dependent). The - * calculation uses 4 measurements, 3 of which (R1, R2, R3) are calibration - * values used for the life of the driver, and one of which (R4) is the - * real-time temperature indicator. - * - * uCode provides all 4 values to the driver via the "initialize alive" - * notification (see struct iwl4965_init_alive_resp). After the runtime uCode - * image loads, uCode updates the R4 value via statistics notifications - * (see STATISTICS_NOTIFICATION), which occur after each received beacon - * when associated, or can be requested via REPLY_STATISTICS_CMD. - * - * NOTE: uCode provides the R4 value as a 23-bit signed value. Driver - * must sign-extend to 32 bits before applying formula below. - * - * Formula: - * - * degrees Kelvin = ((97 * 259 * (R4 - R2) / (R3 - R1)) / 100) + 8 - * - * NOTE: The basic formula is 259 * (R4-R2) / (R3-R1). The 97/100 is - * an additional correction, which should be centered around 0 degrees - * Celsius (273 degrees Kelvin). The 8 (3 percent of 273) compensates for - * centering the 97/100 correction around 0 degrees K. - * - * Add 273 to Kelvin value to find degrees Celsius, for comparing current - * temperature with factory-measured temperatures when calculating txpower - * settings. - */ -#define TEMPERATURE_CALIB_KELVIN_OFFSET 8 -#define TEMPERATURE_CALIB_A_VAL 259 - -/* Limit range of calculated temperature to be between these Kelvin values */ -#define IWL_TX_POWER_TEMPERATURE_MIN (263) -#define IWL_TX_POWER_TEMPERATURE_MAX (410) - -#define IWL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(t) \ - (((t) < IWL_TX_POWER_TEMPERATURE_MIN) || \ - ((t) > IWL_TX_POWER_TEMPERATURE_MAX)) - -/********************* END TEMPERATURE ***************************************/ - -/********************* START TXPOWER *****************************************/ - -/** - * 4965 txpower calculations rely on information from three sources: - * - * 1) EEPROM - * 2) "initialize" alive notification - * 3) statistics notifications - * - * EEPROM data consists of: - * - * 1) Regulatory information (max txpower and channel usage flags) is provided - * separately for each channel that can possibly supported by 4965. - * 40 MHz wide (.11n HT40) channels are listed separately from 20 MHz - * (legacy) channels. - * - * See struct iwl4965_eeprom_channel for format, and struct iwl4965_eeprom - * for locations in EEPROM. - * - * 2) Factory txpower calibration information is provided separately for - * sub-bands of contiguous channels. 2.4GHz has just one sub-band, - * but 5 GHz has several sub-bands. - * - * In addition, per-band (2.4 and 5 Ghz) saturation txpowers are provided. - * - * See struct iwl4965_eeprom_calib_info (and the tree of structures - * contained within it) for format, and struct iwl4965_eeprom for - * locations in EEPROM. - * - * "Initialization alive" notification (see struct iwl4965_init_alive_resp) - * consists of: - * - * 1) Temperature calculation parameters. - * - * 2) Power supply voltage measurement. - * - * 3) Tx gain compensation to balance 2 transmitters for MIMO use. - * - * Statistics notifications deliver: - * - * 1) Current values for temperature param R4. - */ - -/** - * To calculate a txpower setting for a given desired target txpower, channel, - * modulation bit rate, and transmitter chain (4965 has 2 transmitters to - * support MIMO and transmit diversity), driver must do the following: - * - * 1) Compare desired txpower vs. (EEPROM) regulatory limit for this channel. - * Do not exceed regulatory limit; reduce target txpower if necessary. - * - * If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31), - * 2 transmitters will be used simultaneously; driver must reduce the - * regulatory limit by 3 dB (half-power) for each transmitter, so the - * combined total output of the 2 transmitters is within regulatory limits. - * - * - * 2) Compare target txpower vs. (EEPROM) saturation txpower *reduced by - * backoff for this bit rate*. Do not exceed (saturation - backoff[rate]); - * reduce target txpower if necessary. - * - * Backoff values below are in 1/2 dB units (equivalent to steps in - * txpower gain tables): - * - * OFDM 6 - 36 MBit: 10 steps (5 dB) - * OFDM 48 MBit: 15 steps (7.5 dB) - * OFDM 54 MBit: 17 steps (8.5 dB) - * OFDM 60 MBit: 20 steps (10 dB) - * CCK all rates: 10 steps (5 dB) - * - * Backoff values apply to saturation txpower on a per-transmitter basis; - * when using MIMO (2 transmitters), each transmitter uses the same - * saturation level provided in EEPROM, and the same backoff values; - * no reduction (such as with regulatory txpower limits) is required. - * - * Saturation and Backoff values apply equally to 20 Mhz (legacy) channel - * widths and 40 Mhz (.11n HT40) channel widths; there is no separate - * factory measurement for ht40 channels. - * - * The result of this step is the final target txpower. The rest of - * the steps figure out the proper settings for the device to achieve - * that target txpower. - * - * - * 3) Determine (EEPROM) calibration sub band for the target channel, by - * comparing against first and last channels in each sub band - * (see struct iwl4965_eeprom_calib_subband_info). - * - * - * 4) Linearly interpolate (EEPROM) factory calibration measurement sets, - * referencing the 2 factory-measured (sample) channels within the sub band. - * - * Interpolation is based on difference between target channel's frequency - * and the sample channels' frequencies. Since channel numbers are based - * on frequency (5 MHz between each channel number), this is equivalent - * to interpolating based on channel number differences. - * - * Note that the sample channels may or may not be the channels at the - * edges of the sub band. The target channel may be "outside" of the - * span of the sampled channels. - * - * Driver may choose the pair (for 2 Tx chains) of measurements (see - * struct iwl4965_eeprom_calib_ch_info) for which the actual measured - * txpower comes closest to the desired txpower. Usually, though, - * the middle set of measurements is closest to the regulatory limits, - * and is therefore a good choice for all txpower calculations (this - * assumes that high accuracy is needed for maximizing legal txpower, - * while lower txpower configurations do not need as much accuracy). - * - * Driver should interpolate both members of the chosen measurement pair, - * i.e. for both Tx chains (radio transmitters), unless the driver knows - * that only one of the chains will be used (e.g. only one tx antenna - * connected, but this should be unusual). The rate scaling algorithm - * switches antennas to find best performance, so both Tx chains will - * be used (although only one at a time) even for non-MIMO transmissions. - * - * Driver should interpolate factory values for temperature, gain table - * index, and actual power. The power amplifier detector values are - * not used by the driver. - * - * Sanity check: If the target channel happens to be one of the sample - * channels, the results should agree with the sample channel's - * measurements! - * - * - * 5) Find difference between desired txpower and (interpolated) - * factory-measured txpower. Using (interpolated) factory gain table index - * (shown elsewhere) as a starting point, adjust this index lower to - * increase txpower, or higher to decrease txpower, until the target - * txpower is reached. Each step in the gain table is 1/2 dB. - * - * For example, if factory measured txpower is 16 dBm, and target txpower - * is 13 dBm, add 6 steps to the factory gain index to reduce txpower - * by 3 dB. - * - * - * 6) Find difference between current device temperature and (interpolated) - * factory-measured temperature for sub-band. Factory values are in - * degrees Celsius. To calculate current temperature, see comments for - * "4965 temperature calculation". - * - * If current temperature is higher than factory temperature, driver must - * increase gain (lower gain table index), and vice verse. - * - * Temperature affects gain differently for different channels: - * - * 2.4 GHz all channels: 3.5 degrees per half-dB step - * 5 GHz channels 34-43: 4.5 degrees per half-dB step - * 5 GHz channels >= 44: 4.0 degrees per half-dB step - * - * NOTE: Temperature can increase rapidly when transmitting, especially - * with heavy traffic at high txpowers. Driver should update - * temperature calculations often under these conditions to - * maintain strong txpower in the face of rising temperature. - * - * - * 7) Find difference between current power supply voltage indicator - * (from "initialize alive") and factory-measured power supply voltage - * indicator (EEPROM). - * - * If the current voltage is higher (indicator is lower) than factory - * voltage, gain should be reduced (gain table index increased) by: - * - * (eeprom - current) / 7 - * - * If the current voltage is lower (indicator is higher) than factory - * voltage, gain should be increased (gain table index decreased) by: - * - * 2 * (current - eeprom) / 7 - * - * If number of index steps in either direction turns out to be > 2, - * something is wrong ... just use 0. - * - * NOTE: Voltage compensation is independent of band/channel. - * - * NOTE: "Initialize" uCode measures current voltage, which is assumed - * to be constant after this initial measurement. Voltage - * compensation for txpower (number of steps in gain table) - * may be calculated once and used until the next uCode bootload. - * - * - * 8) If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31), - * adjust txpower for each transmitter chain, so txpower is balanced - * between the two chains. There are 5 pairs of tx_atten[group][chain] - * values in "initialize alive", one pair for each of 5 channel ranges: - * - * Group 0: 5 GHz channel 34-43 - * Group 1: 5 GHz channel 44-70 - * Group 2: 5 GHz channel 71-124 - * Group 3: 5 GHz channel 125-200 - * Group 4: 2.4 GHz all channels - * - * Add the tx_atten[group][chain] value to the index for the target chain. - * The values are signed, but are in pairs of 0 and a non-negative number, - * so as to reduce gain (if necessary) of the "hotter" channel. This - * avoids any need to double-check for regulatory compliance after - * this step. - * - * - * 9) If setting up for a CCK rate, lower the gain by adding a CCK compensation - * value to the index: - * - * Hardware rev B: 9 steps (4.5 dB) - * Hardware rev C: 5 steps (2.5 dB) - * - * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG, - * bits [3:2], 1 = B, 2 = C. - * - * NOTE: This compensation is in addition to any saturation backoff that - * might have been applied in an earlier step. - * - * - * 10) Select the gain table, based on band (2.4 vs 5 GHz). - * - * Limit the adjusted index to stay within the table! - * - * - * 11) Read gain table entries for DSP and radio gain, place into appropriate - * location(s) in command (struct iwl4965_txpowertable_cmd). - */ - -/** - * When MIMO is used (2 transmitters operating simultaneously), driver should - * limit each transmitter to deliver a max of 3 dB below the regulatory limit - * for the device. That is, use half power for each transmitter, so total - * txpower is within regulatory limits. - * - * The value "6" represents number of steps in gain table to reduce power 3 dB. - * Each step is 1/2 dB. - */ -#define IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION (6) - -/** - * CCK gain compensation. - * - * When calculating txpowers for CCK, after making sure that the target power - * is within regulatory and saturation limits, driver must additionally - * back off gain by adding these values to the gain table index. - * - * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG, - * bits [3:2], 1 = B, 2 = C. - */ -#define IWL_TX_POWER_CCK_COMPENSATION_B_STEP (9) -#define IWL_TX_POWER_CCK_COMPENSATION_C_STEP (5) - -/* - * 4965 power supply voltage compensation for txpower - */ -#define TX_POWER_IWL_VOLTAGE_CODES_PER_03V (7) - -/** - * Gain tables. - * - * The following tables contain pair of values for setting txpower, i.e. - * gain settings for the output of the device's digital signal processor (DSP), - * and for the analog gain structure of the transmitter. - * - * Each entry in the gain tables represents a step of 1/2 dB. Note that these - * are *relative* steps, not indications of absolute output power. Output - * power varies with temperature, voltage, and channel frequency, and also - * requires consideration of average power (to satisfy regulatory constraints), - * and peak power (to avoid distortion of the output signal). - * - * Each entry contains two values: - * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained - * linear value that multiplies the output of the digital signal processor, - * before being sent to the analog radio. - * 2) Radio gain. This sets the analog gain of the radio Tx path. - * It is a coarser setting, and behaves in a logarithmic (dB) fashion. - * - * EEPROM contains factory calibration data for txpower. This maps actual - * measured txpower levels to gain settings in the "well known" tables - * below ("well-known" means here that both factory calibration *and* the - * driver work with the same table). - * - * There are separate tables for 2.4 GHz and 5 GHz bands. The 5 GHz table - * has an extension (into negative indexes), in case the driver needs to - * boost power setting for high device temperatures (higher than would be - * present during factory calibration). A 5 Ghz EEPROM index of "40" - * corresponds to the 49th entry in the table used by the driver. - */ -#define MIN_TX_GAIN_INDEX (0) /* highest gain, lowest idx, 2.4 */ -#define MIN_TX_GAIN_INDEX_52GHZ_EXT (-9) /* highest gain, lowest idx, 5 */ - -/** - * 2.4 GHz gain table - * - * Index Dsp gain Radio gain - * 0 110 0x3f (highest gain) - * 1 104 0x3f - * 2 98 0x3f - * 3 110 0x3e - * 4 104 0x3e - * 5 98 0x3e - * 6 110 0x3d - * 7 104 0x3d - * 8 98 0x3d - * 9 110 0x3c - * 10 104 0x3c - * 11 98 0x3c - * 12 110 0x3b - * 13 104 0x3b - * 14 98 0x3b - * 15 110 0x3a - * 16 104 0x3a - * 17 98 0x3a - * 18 110 0x39 - * 19 104 0x39 - * 20 98 0x39 - * 21 110 0x38 - * 22 104 0x38 - * 23 98 0x38 - * 24 110 0x37 - * 25 104 0x37 - * 26 98 0x37 - * 27 110 0x36 - * 28 104 0x36 - * 29 98 0x36 - * 30 110 0x35 - * 31 104 0x35 - * 32 98 0x35 - * 33 110 0x34 - * 34 104 0x34 - * 35 98 0x34 - * 36 110 0x33 - * 37 104 0x33 - * 38 98 0x33 - * 39 110 0x32 - * 40 104 0x32 - * 41 98 0x32 - * 42 110 0x31 - * 43 104 0x31 - * 44 98 0x31 - * 45 110 0x30 - * 46 104 0x30 - * 47 98 0x30 - * 48 110 0x6 - * 49 104 0x6 - * 50 98 0x6 - * 51 110 0x5 - * 52 104 0x5 - * 53 98 0x5 - * 54 110 0x4 - * 55 104 0x4 - * 56 98 0x4 - * 57 110 0x3 - * 58 104 0x3 - * 59 98 0x3 - * 60 110 0x2 - * 61 104 0x2 - * 62 98 0x2 - * 63 110 0x1 - * 64 104 0x1 - * 65 98 0x1 - * 66 110 0x0 - * 67 104 0x0 - * 68 98 0x0 - * 69 97 0 - * 70 96 0 - * 71 95 0 - * 72 94 0 - * 73 93 0 - * 74 92 0 - * 75 91 0 - * 76 90 0 - * 77 89 0 - * 78 88 0 - * 79 87 0 - * 80 86 0 - * 81 85 0 - * 82 84 0 - * 83 83 0 - * 84 82 0 - * 85 81 0 - * 86 80 0 - * 87 79 0 - * 88 78 0 - * 89 77 0 - * 90 76 0 - * 91 75 0 - * 92 74 0 - * 93 73 0 - * 94 72 0 - * 95 71 0 - * 96 70 0 - * 97 69 0 - * 98 68 0 - */ - -/** - * 5 GHz gain table - * - * Index Dsp gain Radio gain - * -9 123 0x3F (highest gain) - * -8 117 0x3F - * -7 110 0x3F - * -6 104 0x3F - * -5 98 0x3F - * -4 110 0x3E - * -3 104 0x3E - * -2 98 0x3E - * -1 110 0x3D - * 0 104 0x3D - * 1 98 0x3D - * 2 110 0x3C - * 3 104 0x3C - * 4 98 0x3C - * 5 110 0x3B - * 6 104 0x3B - * 7 98 0x3B - * 8 110 0x3A - * 9 104 0x3A - * 10 98 0x3A - * 11 110 0x39 - * 12 104 0x39 - * 13 98 0x39 - * 14 110 0x38 - * 15 104 0x38 - * 16 98 0x38 - * 17 110 0x37 - * 18 104 0x37 - * 19 98 0x37 - * 20 110 0x36 - * 21 104 0x36 - * 22 98 0x36 - * 23 110 0x35 - * 24 104 0x35 - * 25 98 0x35 - * 26 110 0x34 - * 27 104 0x34 - * 28 98 0x34 - * 29 110 0x33 - * 30 104 0x33 - * 31 98 0x33 - * 32 110 0x32 - * 33 104 0x32 - * 34 98 0x32 - * 35 110 0x31 - * 36 104 0x31 - * 37 98 0x31 - * 38 110 0x30 - * 39 104 0x30 - * 40 98 0x30 - * 41 110 0x25 - * 42 104 0x25 - * 43 98 0x25 - * 44 110 0x24 - * 45 104 0x24 - * 46 98 0x24 - * 47 110 0x23 - * 48 104 0x23 - * 49 98 0x23 - * 50 110 0x22 - * 51 104 0x18 - * 52 98 0x18 - * 53 110 0x17 - * 54 104 0x17 - * 55 98 0x17 - * 56 110 0x16 - * 57 104 0x16 - * 58 98 0x16 - * 59 110 0x15 - * 60 104 0x15 - * 61 98 0x15 - * 62 110 0x14 - * 63 104 0x14 - * 64 98 0x14 - * 65 110 0x13 - * 66 104 0x13 - * 67 98 0x13 - * 68 110 0x12 - * 69 104 0x08 - * 70 98 0x08 - * 71 110 0x07 - * 72 104 0x07 - * 73 98 0x07 - * 74 110 0x06 - * 75 104 0x06 - * 76 98 0x06 - * 77 110 0x05 - * 78 104 0x05 - * 79 98 0x05 - * 80 110 0x04 - * 81 104 0x04 - * 82 98 0x04 - * 83 110 0x03 - * 84 104 0x03 - * 85 98 0x03 - * 86 110 0x02 - * 87 104 0x02 - * 88 98 0x02 - * 89 110 0x01 - * 90 104 0x01 - * 91 98 0x01 - * 92 110 0x00 - * 93 104 0x00 - * 94 98 0x00 - * 95 93 0x00 - * 96 88 0x00 - * 97 83 0x00 - * 98 78 0x00 - */ - - -/** - * Sanity checks and default values for EEPROM regulatory levels. - * If EEPROM values fall outside MIN/MAX range, use default values. - * - * Regulatory limits refer to the maximum average txpower allowed by - * regulatory agencies in the geographies in which the device is meant - * to be operated. These limits are SKU-specific (i.e. geography-specific), - * and channel-specific; each channel has an individual regulatory limit - * listed in the EEPROM. - * - * Units are in half-dBm (i.e. "34" means 17 dBm). - */ -#define IWL_TX_POWER_DEFAULT_REGULATORY_24 (34) -#define IWL_TX_POWER_DEFAULT_REGULATORY_52 (34) -#define IWL_TX_POWER_REGULATORY_MIN (0) -#define IWL_TX_POWER_REGULATORY_MAX (34) - -/** - * Sanity checks and default values for EEPROM saturation levels. - * If EEPROM values fall outside MIN/MAX range, use default values. - * - * Saturation is the highest level that the output power amplifier can produce - * without significant clipping distortion. This is a "peak" power level. - * Different types of modulation (i.e. various "rates", and OFDM vs. CCK) - * require differing amounts of backoff, relative to their average power output, - * in order to avoid clipping distortion. - * - * Driver must make sure that it is violating neither the saturation limit, - * nor the regulatory limit, when calculating Tx power settings for various - * rates. - * - * Units are in half-dBm (i.e. "38" means 19 dBm). - */ -#define IWL_TX_POWER_DEFAULT_SATURATION_24 (38) -#define IWL_TX_POWER_DEFAULT_SATURATION_52 (38) -#define IWL_TX_POWER_SATURATION_MIN (20) -#define IWL_TX_POWER_SATURATION_MAX (50) - -/** - * Channel groups used for Tx Attenuation calibration (MIMO tx channel balance) - * and thermal Txpower calibration. - * - * When calculating txpower, driver must compensate for current device - * temperature; higher temperature requires higher gain. Driver must calculate - * current temperature (see "4965 temperature calculation"), then compare vs. - * factory calibration temperature in EEPROM; if current temperature is higher - * than factory temperature, driver must *increase* gain by proportions shown - * in table below. If current temperature is lower than factory, driver must - * *decrease* gain. - * - * Different frequency ranges require different compensation, as shown below. - */ -/* Group 0, 5.2 GHz ch 34-43: 4.5 degrees per 1/2 dB. */ -#define CALIB_IWL_TX_ATTEN_GR1_FCH 34 -#define CALIB_IWL_TX_ATTEN_GR1_LCH 43 - -/* Group 1, 5.3 GHz ch 44-70: 4.0 degrees per 1/2 dB. */ -#define CALIB_IWL_TX_ATTEN_GR2_FCH 44 -#define CALIB_IWL_TX_ATTEN_GR2_LCH 70 - -/* Group 2, 5.5 GHz ch 71-124: 4.0 degrees per 1/2 dB. */ -#define CALIB_IWL_TX_ATTEN_GR3_FCH 71 -#define CALIB_IWL_TX_ATTEN_GR3_LCH 124 - -/* Group 3, 5.7 GHz ch 125-200: 4.0 degrees per 1/2 dB. */ -#define CALIB_IWL_TX_ATTEN_GR4_FCH 125 -#define CALIB_IWL_TX_ATTEN_GR4_LCH 200 - -/* Group 4, 2.4 GHz all channels: 3.5 degrees per 1/2 dB. */ -#define CALIB_IWL_TX_ATTEN_GR5_FCH 1 -#define CALIB_IWL_TX_ATTEN_GR5_LCH 20 - -enum { - CALIB_CH_GROUP_1 = 0, - CALIB_CH_GROUP_2 = 1, - CALIB_CH_GROUP_3 = 2, - CALIB_CH_GROUP_4 = 3, - CALIB_CH_GROUP_5 = 4, - CALIB_CH_GROUP_MAX -}; - -/********************* END TXPOWER *****************************************/ - - -/** - * Tx/Rx Queues - * - * Most communication between driver and 4965 is via queues of data buffers. - * For example, all commands that the driver issues to device's embedded - * controller (uCode) are via the command queue (one of the Tx queues). All - * uCode command responses/replies/notifications, including Rx frames, are - * conveyed from uCode to driver via the Rx queue. - * - * Most support for these queues, including handshake support, resides in - * structures in host DRAM, shared between the driver and the device. When - * allocating this memory, the driver must make sure that data written by - * the host CPU updates DRAM immediately (and does not get "stuck" in CPU's - * cache memory), so DRAM and cache are consistent, and the device can - * immediately see changes made by the driver. - * - * 4965 supports up to 16 DRAM-based Tx queues, and services these queues via - * up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array - * in DRAM containing 256 Transmit Frame Descriptors (TFDs). - */ -#define IWL49_NUM_FIFOS 7 -#define IWL49_CMD_FIFO_NUM 4 -#define IWL49_NUM_QUEUES 16 -#define IWL49_NUM_AMPDU_QUEUES 8 - - -/** - * struct iwl4965_schedq_bc_tbl - * - * Byte Count table - * - * Each Tx queue uses a byte-count table containing 320 entries: - * one 16-bit entry for each of 256 TFDs, plus an additional 64 entries that - * duplicate the first 64 entries (to avoid wrap-around within a Tx window; - * max Tx window is 64 TFDs). - * - * When driver sets up a new TFD, it must also enter the total byte count - * of the frame to be transmitted into the corresponding entry in the byte - * count table for the chosen Tx queue. If the TFD index is 0-63, the driver - * must duplicate the byte count entry in corresponding index 256-319. - * - * padding puts each byte count table on a 1024-byte boundary; - * 4965 assumes tables are separated by 1024 bytes. - */ -struct iwl4965_scd_bc_tbl { - __le16 tfd_offset[TFD_QUEUE_BC_SIZE]; - u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)]; -} __packed; - - -#define IWL4965_RTC_INST_LOWER_BOUND (0x000000) - -/* RSSI to dBm */ -#define IWL4965_RSSI_OFFSET 44 - -/* PCI registers */ -#define PCI_CFG_RETRY_TIMEOUT 0x041 - -/* PCI register values */ -#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01 -#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02 - -#define IWL4965_DEFAULT_TX_RETRY 15 - -/* EEPROM */ -#define IWL4965_FIRST_AMPDU_QUEUE 10 - - -#endif /* !__iwl_4965_hw_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-led.c b/drivers/net/wireless/iwlegacy/iwl-4965-led.c deleted file mode 100644 index 6862fdcaee62..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-led.c +++ /dev/null @@ -1,73 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <net/mac80211.h> -#include <linux/etherdevice.h> -#include <asm/unaligned.h> - -#include "iwl-commands.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-4965-led.h" - -/* Send led command */ -static int -iwl4965_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd) -{ - struct iwl_host_cmd cmd = { - .id = REPLY_LEDS_CMD, - .len = sizeof(struct iwl_led_cmd), - .data = led_cmd, - .flags = CMD_ASYNC, - .callback = NULL, - }; - u32 reg; - - reg = iwl_read32(priv, CSR_LED_REG); - if (reg != (reg & CSR_LED_BSM_CTRL_MSK)) - iwl_write32(priv, CSR_LED_REG, reg & CSR_LED_BSM_CTRL_MSK); - - return iwl_legacy_send_cmd(priv, &cmd); -} - -/* Set led register off */ -void iwl4965_led_enable(struct iwl_priv *priv) -{ - iwl_write32(priv, CSR_LED_REG, CSR_LED_REG_TRUN_ON); -} - -const struct iwl_led_ops iwl4965_led_ops = { - .cmd = iwl4965_send_led_cmd, -}; diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-led.h b/drivers/net/wireless/iwlegacy/iwl-4965-led.h deleted file mode 100644 index 5ed3615fc338..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-led.h +++ /dev/null @@ -1,33 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __iwl_4965_led_h__ -#define __iwl_4965_led_h__ - -extern const struct iwl_led_ops iwl4965_led_ops; -void iwl4965_led_enable(struct iwl_priv *priv); - -#endif /* __iwl_4965_led_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-lib.c b/drivers/net/wireless/iwlegacy/iwl-4965-lib.c deleted file mode 100644 index 2be6d9e3b019..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-lib.c +++ /dev/null @@ -1,1194 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ -#include <linux/etherdevice.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/sched.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-helpers.h" -#include "iwl-4965-hw.h" -#include "iwl-4965.h" -#include "iwl-sta.h" - -void iwl4965_check_abort_status(struct iwl_priv *priv, - u8 frame_count, u32 status) -{ - if (frame_count == 1 && status == TX_STATUS_FAIL_RFKILL_FLUSH) { - IWL_ERR(priv, "Tx flush command to flush out all frames\n"); - if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) - queue_work(priv->workqueue, &priv->tx_flush); - } -} - -/* - * EEPROM - */ -struct iwl_mod_params iwl4965_mod_params = { - .amsdu_size_8K = 1, - .restart_fw = 1, - /* the rest are 0 by default */ -}; - -void iwl4965_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - unsigned long flags; - int i; - spin_lock_irqsave(&rxq->lock, flags); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); - /* Fill the rx_used queue with _all_ of the Rx buffers */ - for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { - /* In the reset function, these buffers may have been allocated - * to an SKB, so we need to unmap and free potential storage */ - if (rxq->pool[i].page != NULL) { - pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - __iwl_legacy_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); - } - - for (i = 0; i < RX_QUEUE_SIZE; i++) - rxq->queue[i] = NULL; - - /* Set us so that we have processed and used all buffers, but have - * not restocked the Rx queue with fresh buffers */ - rxq->read = rxq->write = 0; - rxq->write_actual = 0; - rxq->free_count = 0; - spin_unlock_irqrestore(&rxq->lock, flags); -} - -int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - u32 rb_size; - const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */ - u32 rb_timeout = 0; - - if (priv->cfg->mod_params->amsdu_size_8K) - rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K; - else - rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K; - - /* Stop Rx DMA */ - iwl_legacy_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); - - /* Reset driver's Rx queue write index */ - iwl_legacy_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0); - - /* Tell device where to find RBD circular buffer in DRAM */ - iwl_legacy_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG, - (u32)(rxq->bd_dma >> 8)); - - /* Tell device where in DRAM to update its Rx status */ - iwl_legacy_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG, - rxq->rb_stts_dma >> 4); - - /* Enable Rx DMA - * Direct rx interrupts to hosts - * Rx buffer size 4 or 8k - * RB timeout 0x10 - * 256 RBDs - */ - iwl_legacy_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, - FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | - FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | - FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK | - rb_size| - (rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)| - (rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS)); - - /* Set interrupt coalescing timer to default (2048 usecs) */ - iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF); - - return 0; -} - -static void iwl4965_set_pwr_vmain(struct iwl_priv *priv) -{ -/* - * (for documentation purposes) - * to set power to V_AUX, do: - - if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) - iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VAUX, - ~APMG_PS_CTRL_MSK_PWR_SRC); - */ - - iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, - ~APMG_PS_CTRL_MSK_PWR_SRC); -} - -int iwl4965_hw_nic_init(struct iwl_priv *priv) -{ - unsigned long flags; - struct iwl_rx_queue *rxq = &priv->rxq; - int ret; - - /* nic_init */ - spin_lock_irqsave(&priv->lock, flags); - priv->cfg->ops->lib->apm_ops.init(priv); - - /* Set interrupt coalescing calibration timer to default (512 usecs) */ - iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF); - - spin_unlock_irqrestore(&priv->lock, flags); - - iwl4965_set_pwr_vmain(priv); - - priv->cfg->ops->lib->apm_ops.config(priv); - - /* Allocate the RX queue, or reset if it is already allocated */ - if (!rxq->bd) { - ret = iwl_legacy_rx_queue_alloc(priv); - if (ret) { - IWL_ERR(priv, "Unable to initialize Rx queue\n"); - return -ENOMEM; - } - } else - iwl4965_rx_queue_reset(priv, rxq); - - iwl4965_rx_replenish(priv); - - iwl4965_rx_init(priv, rxq); - - spin_lock_irqsave(&priv->lock, flags); - - rxq->need_update = 1; - iwl_legacy_rx_queue_update_write_ptr(priv, rxq); - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Allocate or reset and init all Tx and Command queues */ - if (!priv->txq) { - ret = iwl4965_txq_ctx_alloc(priv); - if (ret) - return ret; - } else - iwl4965_txq_ctx_reset(priv); - - set_bit(STATUS_INIT, &priv->status); - - return 0; -} - -/** - * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr - */ -static inline __le32 iwl4965_dma_addr2rbd_ptr(struct iwl_priv *priv, - dma_addr_t dma_addr) -{ - return cpu_to_le32((u32)(dma_addr >> 8)); -} - -/** - * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool - * - * If there are slots in the RX queue that need to be restocked, - * and we have free pre-allocated buffers, fill the ranks as much - * as we can, pulling from rx_free. - * - * This moves the 'write' index forward to catch up with 'processed', and - * also updates the memory address in the firmware to reference the new - * target buffer. - */ -void iwl4965_rx_queue_restock(struct iwl_priv *priv) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct list_head *element; - struct iwl_rx_mem_buffer *rxb; - unsigned long flags; - - spin_lock_irqsave(&rxq->lock, flags); - while ((iwl_legacy_rx_queue_space(rxq) > 0) && (rxq->free_count)) { - /* The overwritten rxb must be a used one */ - rxb = rxq->queue[rxq->write]; - BUG_ON(rxb && rxb->page); - - /* Get next free Rx buffer, remove from free list */ - element = rxq->rx_free.next; - rxb = list_entry(element, struct iwl_rx_mem_buffer, list); - list_del(element); - - /* Point to Rx buffer via next RBD in circular buffer */ - rxq->bd[rxq->write] = iwl4965_dma_addr2rbd_ptr(priv, - rxb->page_dma); - rxq->queue[rxq->write] = rxb; - rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; - rxq->free_count--; - } - spin_unlock_irqrestore(&rxq->lock, flags); - /* If the pre-allocated buffer pool is dropping low, schedule to - * refill it */ - if (rxq->free_count <= RX_LOW_WATERMARK) - queue_work(priv->workqueue, &priv->rx_replenish); - - - /* If we've added more space for the firmware to place data, tell it. - * Increment device's write pointer in multiples of 8. */ - if (rxq->write_actual != (rxq->write & ~0x7)) { - spin_lock_irqsave(&rxq->lock, flags); - rxq->need_update = 1; - spin_unlock_irqrestore(&rxq->lock, flags); - iwl_legacy_rx_queue_update_write_ptr(priv, rxq); - } -} - -/** - * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free - * - * When moving to rx_free an SKB is allocated for the slot. - * - * Also restock the Rx queue via iwl_rx_queue_restock. - * This is called as a scheduled work item (except for during initialization) - */ -static void iwl4965_rx_allocate(struct iwl_priv *priv, gfp_t priority) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct list_head *element; - struct iwl_rx_mem_buffer *rxb; - struct page *page; - unsigned long flags; - gfp_t gfp_mask = priority; - - while (1) { - spin_lock_irqsave(&rxq->lock, flags); - if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); - return; - } - spin_unlock_irqrestore(&rxq->lock, flags); - - if (rxq->free_count > RX_LOW_WATERMARK) - gfp_mask |= __GFP_NOWARN; - - if (priv->hw_params.rx_page_order > 0) - gfp_mask |= __GFP_COMP; - - /* Alloc a new receive buffer */ - page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order); - if (!page) { - if (net_ratelimit()) - IWL_DEBUG_INFO(priv, "alloc_pages failed, " - "order: %d\n", - priv->hw_params.rx_page_order); - - if ((rxq->free_count <= RX_LOW_WATERMARK) && - net_ratelimit()) - IWL_CRIT(priv, - "Failed to alloc_pages with %s. " - "Only %u free buffers remaining.\n", - priority == GFP_ATOMIC ? - "GFP_ATOMIC" : "GFP_KERNEL", - rxq->free_count); - /* We don't reschedule replenish work here -- we will - * call the restock method and if it still needs - * more buffers it will schedule replenish */ - return; - } - - spin_lock_irqsave(&rxq->lock, flags); - - if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); - __free_pages(page, priv->hw_params.rx_page_order); - return; - } - element = rxq->rx_used.next; - rxb = list_entry(element, struct iwl_rx_mem_buffer, list); - list_del(element); - - spin_unlock_irqrestore(&rxq->lock, flags); - - BUG_ON(rxb->page); - rxb->page = page; - /* Get physical address of the RB */ - rxb->page_dma = pci_map_page(priv->pci_dev, page, 0, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - /* dma address must be no more than 36 bits */ - BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36)); - /* and also 256 byte aligned! */ - BUG_ON(rxb->page_dma & DMA_BIT_MASK(8)); - - spin_lock_irqsave(&rxq->lock, flags); - - list_add_tail(&rxb->list, &rxq->rx_free); - rxq->free_count++; - priv->alloc_rxb_page++; - - spin_unlock_irqrestore(&rxq->lock, flags); - } -} - -void iwl4965_rx_replenish(struct iwl_priv *priv) -{ - unsigned long flags; - - iwl4965_rx_allocate(priv, GFP_KERNEL); - - spin_lock_irqsave(&priv->lock, flags); - iwl4965_rx_queue_restock(priv); - spin_unlock_irqrestore(&priv->lock, flags); -} - -void iwl4965_rx_replenish_now(struct iwl_priv *priv) -{ - iwl4965_rx_allocate(priv, GFP_ATOMIC); - - iwl4965_rx_queue_restock(priv); -} - -/* Assumes that the skb field of the buffers in 'pool' is kept accurate. - * If an SKB has been detached, the POOL needs to have its SKB set to NULL - * This free routine walks the list of POOL entries and if SKB is set to - * non NULL it is unmapped and freed - */ -void iwl4965_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - int i; - for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { - if (rxq->pool[i].page != NULL) { - pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - __iwl_legacy_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - } - - dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, - rxq->bd_dma); - dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status), - rxq->rb_stts, rxq->rb_stts_dma); - rxq->bd = NULL; - rxq->rb_stts = NULL; -} - -int iwl4965_rxq_stop(struct iwl_priv *priv) -{ - - /* stop Rx DMA */ - iwl_legacy_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); - iwl_poll_direct_bit(priv, FH_MEM_RSSR_RX_STATUS_REG, - FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); - - return 0; -} - -int iwl4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band) -{ - int idx = 0; - int band_offset = 0; - - /* HT rate format: mac80211 wants an MCS number, which is just LSB */ - if (rate_n_flags & RATE_MCS_HT_MSK) { - idx = (rate_n_flags & 0xff); - return idx; - /* Legacy rate format, search for match in table */ - } else { - if (band == IEEE80211_BAND_5GHZ) - band_offset = IWL_FIRST_OFDM_RATE; - for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) - if (iwlegacy_rates[idx].plcp == (rate_n_flags & 0xFF)) - return idx - band_offset; - } - - return -1; -} - -static int iwl4965_calc_rssi(struct iwl_priv *priv, - struct iwl_rx_phy_res *rx_resp) -{ - /* data from PHY/DSP regarding signal strength, etc., - * contents are always there, not configurable by host. */ - struct iwl4965_rx_non_cfg_phy *ncphy = - (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy_buf; - u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL49_AGC_DB_MASK) - >> IWL49_AGC_DB_POS; - - u32 valid_antennae = - (le16_to_cpu(rx_resp->phy_flags) & IWL49_RX_PHY_FLAGS_ANTENNAE_MASK) - >> IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET; - u8 max_rssi = 0; - u32 i; - - /* Find max rssi among 3 possible receivers. - * These values are measured by the digital signal processor (DSP). - * They should stay fairly constant even as the signal strength varies, - * if the radio's automatic gain control (AGC) is working right. - * AGC value (see below) will provide the "interesting" info. */ - for (i = 0; i < 3; i++) - if (valid_antennae & (1 << i)) - max_rssi = max(ncphy->rssi_info[i << 1], max_rssi); - - IWL_DEBUG_STATS(priv, "Rssi In A %d B %d C %d Max %d AGC dB %d\n", - ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4], - max_rssi, agc); - - /* dBm = max_rssi dB - agc dB - constant. - * Higher AGC (higher radio gain) means lower signal. */ - return max_rssi - agc - IWL4965_RSSI_OFFSET; -} - - -static u32 iwl4965_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in) -{ - u32 decrypt_out = 0; - - if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) == - RX_RES_STATUS_STATION_FOUND) - decrypt_out |= (RX_RES_STATUS_STATION_FOUND | - RX_RES_STATUS_NO_STATION_INFO_MISMATCH); - - decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK); - - /* packet was not encrypted */ - if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == - RX_RES_STATUS_SEC_TYPE_NONE) - return decrypt_out; - - /* packet was encrypted with unknown alg */ - if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == - RX_RES_STATUS_SEC_TYPE_ERR) - return decrypt_out; - - /* decryption was not done in HW */ - if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) != - RX_MPDU_RES_STATUS_DEC_DONE_MSK) - return decrypt_out; - - switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) { - - case RX_RES_STATUS_SEC_TYPE_CCMP: - /* alg is CCM: check MIC only */ - if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK)) - /* Bad MIC */ - decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; - else - decrypt_out |= RX_RES_STATUS_DECRYPT_OK; - - break; - - case RX_RES_STATUS_SEC_TYPE_TKIP: - if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) { - /* Bad TTAK */ - decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK; - break; - } - /* fall through if TTAK OK */ - default: - if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK)) - decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; - else - decrypt_out |= RX_RES_STATUS_DECRYPT_OK; - break; - } - - IWL_DEBUG_RX(priv, "decrypt_in:0x%x decrypt_out = 0x%x\n", - decrypt_in, decrypt_out); - - return decrypt_out; -} - -static void iwl4965_pass_packet_to_mac80211(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, - u16 len, - u32 ampdu_status, - struct iwl_rx_mem_buffer *rxb, - struct ieee80211_rx_status *stats) -{ - struct sk_buff *skb; - __le16 fc = hdr->frame_control; - - /* We only process data packets if the interface is open */ - if (unlikely(!priv->is_open)) { - IWL_DEBUG_DROP_LIMIT(priv, - "Dropping packet while interface is not open.\n"); - return; - } - - /* In case of HW accelerated crypto and bad decryption, drop */ - if (!priv->cfg->mod_params->sw_crypto && - iwl_legacy_set_decrypted_flag(priv, hdr, ampdu_status, stats)) - return; - - skb = dev_alloc_skb(128); - if (!skb) { - IWL_ERR(priv, "dev_alloc_skb failed\n"); - return; - } - - skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len); - - iwl_legacy_update_stats(priv, false, fc, len); - memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); - - ieee80211_rx(priv->hw, skb); - priv->alloc_rxb_page--; - rxb->page = NULL; -} - -/* Called for REPLY_RX (legacy ABG frames), or - * REPLY_RX_MPDU_CMD (HT high-throughput N frames). */ -void iwl4965_rx_reply_rx(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct ieee80211_hdr *header; - struct ieee80211_rx_status rx_status; - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_rx_phy_res *phy_res; - __le32 rx_pkt_status; - struct iwl_rx_mpdu_res_start *amsdu; - u32 len; - u32 ampdu_status; - u32 rate_n_flags; - - /** - * REPLY_RX and REPLY_RX_MPDU_CMD are handled differently. - * REPLY_RX: physical layer info is in this buffer - * REPLY_RX_MPDU_CMD: physical layer info was sent in separate - * command and cached in priv->last_phy_res - * - * Here we set up local variables depending on which command is - * received. - */ - if (pkt->hdr.cmd == REPLY_RX) { - phy_res = (struct iwl_rx_phy_res *)pkt->u.raw; - header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*phy_res) - + phy_res->cfg_phy_cnt); - - len = le16_to_cpu(phy_res->byte_count); - rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*phy_res) + - phy_res->cfg_phy_cnt + len); - ampdu_status = le32_to_cpu(rx_pkt_status); - } else { - if (!priv->_4965.last_phy_res_valid) { - IWL_ERR(priv, "MPDU frame without cached PHY data\n"); - return; - } - phy_res = &priv->_4965.last_phy_res; - amsdu = (struct iwl_rx_mpdu_res_start *)pkt->u.raw; - header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu)); - len = le16_to_cpu(amsdu->byte_count); - rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*amsdu) + len); - ampdu_status = iwl4965_translate_rx_status(priv, - le32_to_cpu(rx_pkt_status)); - } - - if ((unlikely(phy_res->cfg_phy_cnt > 20))) { - IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n", - phy_res->cfg_phy_cnt); - return; - } - - if (!(rx_pkt_status & RX_RES_STATUS_NO_CRC32_ERROR) || - !(rx_pkt_status & RX_RES_STATUS_NO_RXE_OVERFLOW)) { - IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n", - le32_to_cpu(rx_pkt_status)); - return; - } - - /* This will be used in several places later */ - rate_n_flags = le32_to_cpu(phy_res->rate_n_flags); - - /* rx_status carries information about the packet to mac80211 */ - rx_status.mactime = le64_to_cpu(phy_res->timestamp); - rx_status.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? - IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; - rx_status.freq = - ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel), - rx_status.band); - rx_status.rate_idx = - iwl4965_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band); - rx_status.flag = 0; - - /* TSF isn't reliable. In order to allow smooth user experience, - * this W/A doesn't propagate it to the mac80211 */ - /*rx_status.flag |= RX_FLAG_MACTIME_MPDU;*/ - - priv->ucode_beacon_time = le32_to_cpu(phy_res->beacon_time_stamp); - - /* Find max signal strength (dBm) among 3 antenna/receiver chains */ - rx_status.signal = iwl4965_calc_rssi(priv, phy_res); - - iwl_legacy_dbg_log_rx_data_frame(priv, len, header); - IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, TSF %llu\n", - rx_status.signal, (unsigned long long)rx_status.mactime); - - /* - * "antenna number" - * - * It seems that the antenna field in the phy flags value - * is actually a bit field. This is undefined by radiotap, - * it wants an actual antenna number but I always get "7" - * for most legacy frames I receive indicating that the - * same frame was received on all three RX chains. - * - * I think this field should be removed in favor of a - * new 802.11n radiotap field "RX chains" that is defined - * as a bitmask. - */ - rx_status.antenna = - (le16_to_cpu(phy_res->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK) - >> RX_RES_PHY_FLAGS_ANTENNA_POS; - - /* set the preamble flag if appropriate */ - if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) - rx_status.flag |= RX_FLAG_SHORTPRE; - - /* Set up the HT phy flags */ - if (rate_n_flags & RATE_MCS_HT_MSK) - rx_status.flag |= RX_FLAG_HT; - if (rate_n_flags & RATE_MCS_HT40_MSK) - rx_status.flag |= RX_FLAG_40MHZ; - if (rate_n_flags & RATE_MCS_SGI_MSK) - rx_status.flag |= RX_FLAG_SHORT_GI; - - iwl4965_pass_packet_to_mac80211(priv, header, len, ampdu_status, - rxb, &rx_status); -} - -/* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD). - * This will be used later in iwl_rx_reply_rx() for REPLY_RX_MPDU_CMD. */ -void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - priv->_4965.last_phy_res_valid = true; - memcpy(&priv->_4965.last_phy_res, pkt->u.raw, - sizeof(struct iwl_rx_phy_res)); -} - -static int iwl4965_get_channels_for_scan(struct iwl_priv *priv, - struct ieee80211_vif *vif, - enum ieee80211_band band, - u8 is_active, u8 n_probes, - struct iwl_scan_channel *scan_ch) -{ - struct ieee80211_channel *chan; - const struct ieee80211_supported_band *sband; - const struct iwl_channel_info *ch_info; - u16 passive_dwell = 0; - u16 active_dwell = 0; - int added, i; - u16 channel; - - sband = iwl_get_hw_mode(priv, band); - if (!sband) - return 0; - - active_dwell = iwl_legacy_get_active_dwell_time(priv, band, n_probes); - passive_dwell = iwl_legacy_get_passive_dwell_time(priv, band, vif); - - if (passive_dwell <= active_dwell) - passive_dwell = active_dwell + 1; - - for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) { - chan = priv->scan_request->channels[i]; - - if (chan->band != band) - continue; - - channel = chan->hw_value; - scan_ch->channel = cpu_to_le16(channel); - - ch_info = iwl_legacy_get_channel_info(priv, band, channel); - if (!iwl_legacy_is_channel_valid(ch_info)) { - IWL_DEBUG_SCAN(priv, - "Channel %d is INVALID for this band.\n", - channel); - continue; - } - - if (!is_active || iwl_legacy_is_channel_passive(ch_info) || - (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) - scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; - else - scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE; - - if (n_probes) - scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes); - - scan_ch->active_dwell = cpu_to_le16(active_dwell); - scan_ch->passive_dwell = cpu_to_le16(passive_dwell); - - /* Set txpower levels to defaults */ - scan_ch->dsp_atten = 110; - - /* NOTE: if we were doing 6Mb OFDM for scans we'd use - * power level: - * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3; - */ - if (band == IEEE80211_BAND_5GHZ) - scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3; - else - scan_ch->tx_gain = ((1 << 5) | (5 << 3)); - - IWL_DEBUG_SCAN(priv, "Scanning ch=%d prob=0x%X [%s %d]\n", - channel, le32_to_cpu(scan_ch->type), - (scan_ch->type & SCAN_CHANNEL_TYPE_ACTIVE) ? - "ACTIVE" : "PASSIVE", - (scan_ch->type & SCAN_CHANNEL_TYPE_ACTIVE) ? - active_dwell : passive_dwell); - - scan_ch++; - added++; - } - - IWL_DEBUG_SCAN(priv, "total channels to scan %d\n", added); - return added; -} - -int iwl4965_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) -{ - struct iwl_host_cmd cmd = { - .id = REPLY_SCAN_CMD, - .len = sizeof(struct iwl_scan_cmd), - .flags = CMD_SIZE_HUGE, - }; - struct iwl_scan_cmd *scan; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - u32 rate_flags = 0; - u16 cmd_len; - u16 rx_chain = 0; - enum ieee80211_band band; - u8 n_probes = 0; - u8 rx_ant = priv->hw_params.valid_rx_ant; - u8 rate; - bool is_active = false; - int chan_mod; - u8 active_chains; - u8 scan_tx_antennas = priv->hw_params.valid_tx_ant; - int ret; - - lockdep_assert_held(&priv->mutex); - - if (vif) - ctx = iwl_legacy_rxon_ctx_from_vif(vif); - - if (!priv->scan_cmd) { - priv->scan_cmd = kmalloc(sizeof(struct iwl_scan_cmd) + - IWL_MAX_SCAN_SIZE, GFP_KERNEL); - if (!priv->scan_cmd) { - IWL_DEBUG_SCAN(priv, - "fail to allocate memory for scan\n"); - return -ENOMEM; - } - } - scan = priv->scan_cmd; - memset(scan, 0, sizeof(struct iwl_scan_cmd) + IWL_MAX_SCAN_SIZE); - - scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; - scan->quiet_time = IWL_ACTIVE_QUIET_TIME; - - if (iwl_legacy_is_any_associated(priv)) { - u16 interval; - u32 extra; - u32 suspend_time = 100; - u32 scan_suspend_time = 100; - - IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); - interval = vif->bss_conf.beacon_int; - - scan->suspend_time = 0; - scan->max_out_time = cpu_to_le32(200 * 1024); - if (!interval) - interval = suspend_time; - - extra = (suspend_time / interval) << 22; - scan_suspend_time = (extra | - ((suspend_time % interval) * 1024)); - scan->suspend_time = cpu_to_le32(scan_suspend_time); - IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", - scan_suspend_time, interval); - } - - if (priv->scan_request->n_ssids) { - int i, p = 0; - IWL_DEBUG_SCAN(priv, "Kicking off active scan\n"); - for (i = 0; i < priv->scan_request->n_ssids; i++) { - /* always does wildcard anyway */ - if (!priv->scan_request->ssids[i].ssid_len) - continue; - scan->direct_scan[p].id = WLAN_EID_SSID; - scan->direct_scan[p].len = - priv->scan_request->ssids[i].ssid_len; - memcpy(scan->direct_scan[p].ssid, - priv->scan_request->ssids[i].ssid, - priv->scan_request->ssids[i].ssid_len); - n_probes++; - p++; - } - is_active = true; - } else - IWL_DEBUG_SCAN(priv, "Start passive scan.\n"); - - scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; - scan->tx_cmd.sta_id = ctx->bcast_sta_id; - scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - - switch (priv->scan_band) { - case IEEE80211_BAND_2GHZ: - scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; - chan_mod = le32_to_cpu( - priv->contexts[IWL_RXON_CTX_BSS].active.flags & - RXON_FLG_CHANNEL_MODE_MSK) - >> RXON_FLG_CHANNEL_MODE_POS; - if (chan_mod == CHANNEL_MODE_PURE_40) { - rate = IWL_RATE_6M_PLCP; - } else { - rate = IWL_RATE_1M_PLCP; - rate_flags = RATE_MCS_CCK_MSK; - } - break; - case IEEE80211_BAND_5GHZ: - rate = IWL_RATE_6M_PLCP; - break; - default: - IWL_WARN(priv, "Invalid scan band\n"); - return -EIO; - } - - /* - * If active scanning is requested but a certain channel is - * marked passive, we can do active scanning if we detect - * transmissions. - * - * There is an issue with some firmware versions that triggers - * a sysassert on a "good CRC threshold" of zero (== disabled), - * on a radar channel even though this means that we should NOT - * send probes. - * - * The "good CRC threshold" is the number of frames that we - * need to receive during our dwell time on a channel before - * sending out probes -- setting this to a huge value will - * mean we never reach it, but at the same time work around - * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER - * here instead of IWL_GOOD_CRC_TH_DISABLED. - */ - scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT : - IWL_GOOD_CRC_TH_NEVER; - - band = priv->scan_band; - - if (priv->cfg->scan_rx_antennas[band]) - rx_ant = priv->cfg->scan_rx_antennas[band]; - - priv->scan_tx_ant[band] = iwl4965_toggle_tx_ant(priv, - priv->scan_tx_ant[band], - scan_tx_antennas); - rate_flags |= iwl4965_ant_idx_to_flags(priv->scan_tx_ant[band]); - scan->tx_cmd.rate_n_flags = iwl4965_hw_set_rate_n_flags(rate, rate_flags); - - /* In power save mode use one chain, otherwise use all chains */ - if (test_bit(STATUS_POWER_PMI, &priv->status)) { - /* rx_ant has been set to all valid chains previously */ - active_chains = rx_ant & - ((u8)(priv->chain_noise_data.active_chains)); - if (!active_chains) - active_chains = rx_ant; - - IWL_DEBUG_SCAN(priv, "chain_noise_data.active_chains: %u\n", - priv->chain_noise_data.active_chains); - - rx_ant = iwl4965_first_antenna(active_chains); - } - - /* MIMO is not used here, but value is required */ - rx_chain |= priv->hw_params.valid_rx_ant << RXON_RX_CHAIN_VALID_POS; - rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; - rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_SEL_POS; - rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS; - scan->rx_chain = cpu_to_le16(rx_chain); - - cmd_len = iwl_legacy_fill_probe_req(priv, - (struct ieee80211_mgmt *)scan->data, - vif->addr, - priv->scan_request->ie, - priv->scan_request->ie_len, - IWL_MAX_SCAN_SIZE - sizeof(*scan)); - scan->tx_cmd.len = cpu_to_le16(cmd_len); - - scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK | - RXON_FILTER_BCON_AWARE_MSK); - - scan->channel_count = iwl4965_get_channels_for_scan(priv, vif, band, - is_active, n_probes, - (void *)&scan->data[cmd_len]); - if (scan->channel_count == 0) { - IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); - return -EIO; - } - - cmd.len += le16_to_cpu(scan->tx_cmd.len) + - scan->channel_count * sizeof(struct iwl_scan_channel); - cmd.data = scan; - scan->len = cpu_to_le16(cmd.len); - - set_bit(STATUS_SCAN_HW, &priv->status); - - ret = iwl_legacy_send_cmd_sync(priv, &cmd); - if (ret) - clear_bit(STATUS_SCAN_HW, &priv->status); - - return ret; -} - -int iwl4965_manage_ibss_station(struct iwl_priv *priv, - struct ieee80211_vif *vif, bool add) -{ - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - - if (add) - return iwl4965_add_bssid_station(priv, vif_priv->ctx, - vif->bss_conf.bssid, - &vif_priv->ibss_bssid_sta_id); - return iwl_legacy_remove_station(priv, vif_priv->ibss_bssid_sta_id, - vif->bss_conf.bssid); -} - -void iwl4965_free_tfds_in_queue(struct iwl_priv *priv, - int sta_id, int tid, int freed) -{ - lockdep_assert_held(&priv->sta_lock); - - if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed) - priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; - else { - IWL_DEBUG_TX(priv, "free more than tfds_in_queue (%u:%d)\n", - priv->stations[sta_id].tid[tid].tfds_in_queue, - freed); - priv->stations[sta_id].tid[tid].tfds_in_queue = 0; - } -} - -#define IWL_TX_QUEUE_MSK 0xfffff - -static bool iwl4965_is_single_rx_stream(struct iwl_priv *priv) -{ - return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC || - priv->current_ht_config.single_chain_sufficient; -} - -#define IWL_NUM_RX_CHAINS_MULTIPLE 3 -#define IWL_NUM_RX_CHAINS_SINGLE 2 -#define IWL_NUM_IDLE_CHAINS_DUAL 2 -#define IWL_NUM_IDLE_CHAINS_SINGLE 1 - -/* - * Determine how many receiver/antenna chains to use. - * - * More provides better reception via diversity. Fewer saves power - * at the expense of throughput, but only when not in powersave to - * start with. - * - * MIMO (dual stream) requires at least 2, but works better with 3. - * This does not determine *which* chains to use, just how many. - */ -static int iwl4965_get_active_rx_chain_count(struct iwl_priv *priv) -{ - /* # of Rx chains to use when expecting MIMO. */ - if (iwl4965_is_single_rx_stream(priv)) - return IWL_NUM_RX_CHAINS_SINGLE; - else - return IWL_NUM_RX_CHAINS_MULTIPLE; -} - -/* - * When we are in power saving mode, unless device support spatial - * multiplexing power save, use the active count for rx chain count. - */ -static int -iwl4965_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) -{ - /* # Rx chains when idling, depending on SMPS mode */ - switch (priv->current_ht_config.smps) { - case IEEE80211_SMPS_STATIC: - case IEEE80211_SMPS_DYNAMIC: - return IWL_NUM_IDLE_CHAINS_SINGLE; - case IEEE80211_SMPS_OFF: - return active_cnt; - default: - WARN(1, "invalid SMPS mode %d", - priv->current_ht_config.smps); - return active_cnt; - } -} - -/* up to 4 chains */ -static u8 iwl4965_count_chain_bitmap(u32 chain_bitmap) -{ - u8 res; - res = (chain_bitmap & BIT(0)) >> 0; - res += (chain_bitmap & BIT(1)) >> 1; - res += (chain_bitmap & BIT(2)) >> 2; - res += (chain_bitmap & BIT(3)) >> 3; - return res; -} - -/** - * iwl4965_set_rxon_chain - Set up Rx chain usage in "staging" RXON image - * - * Selects how many and which Rx receivers/antennas/chains to use. - * This should not be used for scan command ... it puts data in wrong place. - */ -void iwl4965_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - bool is_single = iwl4965_is_single_rx_stream(priv); - bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); - u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; - u32 active_chains; - u16 rx_chain; - - /* Tell uCode which antennas are actually connected. - * Before first association, we assume all antennas are connected. - * Just after first association, iwl4965_chain_noise_calibration() - * checks which antennas actually *are* connected. */ - if (priv->chain_noise_data.active_chains) - active_chains = priv->chain_noise_data.active_chains; - else - active_chains = priv->hw_params.valid_rx_ant; - - rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; - - /* How many receivers should we use? */ - active_rx_cnt = iwl4965_get_active_rx_chain_count(priv); - idle_rx_cnt = iwl4965_get_idle_rx_chain_count(priv, active_rx_cnt); - - - /* correct rx chain count according hw settings - * and chain noise calibration - */ - valid_rx_cnt = iwl4965_count_chain_bitmap(active_chains); - if (valid_rx_cnt < active_rx_cnt) - active_rx_cnt = valid_rx_cnt; - - if (valid_rx_cnt < idle_rx_cnt) - idle_rx_cnt = valid_rx_cnt; - - rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; - rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; - - ctx->staging.rx_chain = cpu_to_le16(rx_chain); - - if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) - ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; - else - ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; - - IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", - ctx->staging.rx_chain, - active_rx_cnt, idle_rx_cnt); - - WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || - active_rx_cnt < idle_rx_cnt); -} - -u8 iwl4965_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid) -{ - int i; - u8 ind = ant; - - for (i = 0; i < RATE_ANT_NUM - 1; i++) { - ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; - if (valid & BIT(ind)) - return ind; - } - return ant; -} - -static const char *iwl4965_get_fh_string(int cmd) -{ - switch (cmd) { - IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG); - IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG); - IWL_CMD(FH_RSCSR_CHNL0_WPTR); - IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG); - IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG); - IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG); - IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); - IWL_CMD(FH_TSSR_TX_STATUS_REG); - IWL_CMD(FH_TSSR_TX_ERROR_REG); - default: - return "UNKNOWN"; - } -} - -int iwl4965_dump_fh(struct iwl_priv *priv, char **buf, bool display) -{ - int i; -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - int pos = 0; - size_t bufsz = 0; -#endif - static const u32 fh_tbl[] = { - FH_RSCSR_CHNL0_STTS_WPTR_REG, - FH_RSCSR_CHNL0_RBDCB_BASE_REG, - FH_RSCSR_CHNL0_WPTR, - FH_MEM_RCSR_CHNL0_CONFIG_REG, - FH_MEM_RSSR_SHARED_CTRL_REG, - FH_MEM_RSSR_RX_STATUS_REG, - FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, - FH_TSSR_TX_STATUS_REG, - FH_TSSR_TX_ERROR_REG - }; -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (display) { - bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; - *buf = kmalloc(bufsz, GFP_KERNEL); - if (!*buf) - return -ENOMEM; - pos += scnprintf(*buf + pos, bufsz - pos, - "FH register values:\n"); - for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { - pos += scnprintf(*buf + pos, bufsz - pos, - " %34s: 0X%08x\n", - iwl4965_get_fh_string(fh_tbl[i]), - iwl_legacy_read_direct32(priv, fh_tbl[i])); - } - return pos; - } -#endif - IWL_ERR(priv, "FH register values:\n"); - for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { - IWL_ERR(priv, " %34s: 0X%08x\n", - iwl4965_get_fh_string(fh_tbl[i]), - iwl_legacy_read_direct32(priv, fh_tbl[i])); - } - return 0; -} diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-rs.c b/drivers/net/wireless/iwlegacy/iwl-4965-rs.c deleted file mode 100644 index 57ebe214e68c..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-rs.c +++ /dev/null @@ -1,2871 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/skbuff.h> -#include <linux/slab.h> -#include <net/mac80211.h> - -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/delay.h> - -#include <linux/workqueue.h> - -#include "iwl-dev.h" -#include "iwl-sta.h" -#include "iwl-core.h" -#include "iwl-4965.h" - -#define IWL4965_RS_NAME "iwl-4965-rs" - -#define NUM_TRY_BEFORE_ANT_TOGGLE 1 -#define IWL_NUMBER_TRY 1 -#define IWL_HT_NUMBER_TRY 3 - -#define IWL_RATE_MAX_WINDOW 62 /* # tx in history window */ -#define IWL_RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */ -#define IWL_RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */ - -/* max allowed rate miss before sync LQ cmd */ -#define IWL_MISSED_RATE_MAX 15 -/* max time to accum history 2 seconds */ -#define IWL_RATE_SCALE_FLUSH_INTVL (3*HZ) - -static u8 rs_ht_to_legacy[] = { - IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX, - IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX, - IWL_RATE_6M_INDEX, - IWL_RATE_6M_INDEX, IWL_RATE_9M_INDEX, - IWL_RATE_12M_INDEX, IWL_RATE_18M_INDEX, - IWL_RATE_24M_INDEX, IWL_RATE_36M_INDEX, - IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX -}; - -static const u8 ant_toggle_lookup[] = { - /*ANT_NONE -> */ ANT_NONE, - /*ANT_A -> */ ANT_B, - /*ANT_B -> */ ANT_C, - /*ANT_AB -> */ ANT_BC, - /*ANT_C -> */ ANT_A, - /*ANT_AC -> */ ANT_AB, - /*ANT_BC -> */ ANT_AC, - /*ANT_ABC -> */ ANT_ABC, -}; - -#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ - [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ - IWL_RATE_SISO_##s##M_PLCP, \ - IWL_RATE_MIMO2_##s##M_PLCP,\ - IWL_RATE_##r##M_IEEE, \ - IWL_RATE_##ip##M_INDEX, \ - IWL_RATE_##in##M_INDEX, \ - IWL_RATE_##rp##M_INDEX, \ - IWL_RATE_##rn##M_INDEX, \ - IWL_RATE_##pp##M_INDEX, \ - IWL_RATE_##np##M_INDEX } - -/* - * Parameter order: - * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate - * - * If there isn't a valid next or previous rate then INV is used which - * maps to IWL_RATE_INVALID - * - */ -const struct iwl_rate_info iwlegacy_rates[IWL_RATE_COUNT] = { - IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ - IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ - IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ - IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ - IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ - IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ - IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ - IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ - IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ - IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ - IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ - IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ - IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ -}; - -static int iwl4965_hwrate_to_plcp_idx(u32 rate_n_flags) -{ - int idx = 0; - - /* HT rate format */ - if (rate_n_flags & RATE_MCS_HT_MSK) { - idx = (rate_n_flags & 0xff); - - if (idx >= IWL_RATE_MIMO2_6M_PLCP) - idx = idx - IWL_RATE_MIMO2_6M_PLCP; - - idx += IWL_FIRST_OFDM_RATE; - /* skip 9M not supported in ht*/ - if (idx >= IWL_RATE_9M_INDEX) - idx += 1; - if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) - return idx; - - /* legacy rate format, search for match in table */ - } else { - for (idx = 0; idx < ARRAY_SIZE(iwlegacy_rates); idx++) - if (iwlegacy_rates[idx].plcp == (rate_n_flags & 0xFF)) - return idx; - } - - return -1; -} - -static void iwl4965_rs_rate_scale_perform(struct iwl_priv *priv, - struct sk_buff *skb, - struct ieee80211_sta *sta, - struct iwl_lq_sta *lq_sta); -static void iwl4965_rs_fill_link_cmd(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, u32 rate_n_flags); -static void iwl4965_rs_stay_in_table(struct iwl_lq_sta *lq_sta, - bool force_search); - -#ifdef CONFIG_MAC80211_DEBUGFS -static void iwl4965_rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, - u32 *rate_n_flags, int index); -#else -static void iwl4965_rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, - u32 *rate_n_flags, int index) -{} -#endif - -/** - * The following tables contain the expected throughput metrics for all rates - * - * 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits - * - * where invalid entries are zeros. - * - * CCK rates are only valid in legacy table and will only be used in G - * (2.4 GHz) band. - */ - -static s32 expected_tpt_legacy[IWL_RATE_COUNT] = { - 7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0 -}; - -static s32 expected_tpt_siso20MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 42, 0, 76, 102, 124, 158, 183, 193, 202}, /* Norm */ - {0, 0, 0, 0, 46, 0, 82, 110, 132, 167, 192, 202, 210}, /* SGI */ - {0, 0, 0, 0, 48, 0, 93, 135, 176, 251, 319, 351, 381}, /* AGG */ - {0, 0, 0, 0, 53, 0, 102, 149, 193, 275, 348, 381, 413}, /* AGG+SGI */ -}; - -static s32 expected_tpt_siso40MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257}, /* Norm */ - {0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264}, /* SGI */ - {0, 0, 0, 0, 96, 0, 182, 259, 328, 451, 553, 598, 640}, /* AGG */ - {0, 0, 0, 0, 106, 0, 199, 282, 357, 487, 593, 640, 683}, /* AGG+SGI */ -}; - -static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 74, 0, 123, 155, 179, 213, 235, 243, 250}, /* Norm */ - {0, 0, 0, 0, 81, 0, 131, 164, 187, 221, 242, 250, 256}, /* SGI */ - {0, 0, 0, 0, 92, 0, 175, 250, 317, 436, 534, 578, 619}, /* AGG */ - {0, 0, 0, 0, 102, 0, 192, 273, 344, 470, 573, 619, 660}, /* AGG+SGI*/ -}; - -static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289}, /* Norm */ - {0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293}, /* SGI */ - {0, 0, 0, 0, 180, 0, 327, 446, 545, 708, 828, 878, 922}, /* AGG */ - {0, 0, 0, 0, 197, 0, 355, 481, 584, 752, 872, 922, 966}, /* AGG+SGI */ -}; - -/* mbps, mcs */ -static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = { - { "1", "BPSK DSSS"}, - { "2", "QPSK DSSS"}, - {"5.5", "BPSK CCK"}, - { "11", "QPSK CCK"}, - { "6", "BPSK 1/2"}, - { "9", "BPSK 1/2"}, - { "12", "QPSK 1/2"}, - { "18", "QPSK 3/4"}, - { "24", "16QAM 1/2"}, - { "36", "16QAM 3/4"}, - { "48", "64QAM 2/3"}, - { "54", "64QAM 3/4"}, - { "60", "64QAM 5/6"}, -}; - -#define MCS_INDEX_PER_STREAM (8) - -static inline u8 iwl4965_rs_extract_rate(u32 rate_n_flags) -{ - return (u8)(rate_n_flags & 0xFF); -} - -static void -iwl4965_rs_rate_scale_clear_window(struct iwl_rate_scale_data *window) -{ - window->data = 0; - window->success_counter = 0; - window->success_ratio = IWL_INVALID_VALUE; - window->counter = 0; - window->average_tpt = IWL_INVALID_VALUE; - window->stamp = 0; -} - -static inline u8 iwl4965_rs_is_valid_ant(u8 valid_antenna, u8 ant_type) -{ - return (ant_type & valid_antenna) == ant_type; -} - -/* - * removes the old data from the statistics. All data that is older than - * TID_MAX_TIME_DIFF, will be deleted. - */ -static void -iwl4965_rs_tl_rm_old_stats(struct iwl_traffic_load *tl, u32 curr_time) -{ - /* The oldest age we want to keep */ - u32 oldest_time = curr_time - TID_MAX_TIME_DIFF; - - while (tl->queue_count && - (tl->time_stamp < oldest_time)) { - tl->total -= tl->packet_count[tl->head]; - tl->packet_count[tl->head] = 0; - tl->time_stamp += TID_QUEUE_CELL_SPACING; - tl->queue_count--; - tl->head++; - if (tl->head >= TID_QUEUE_MAX_SIZE) - tl->head = 0; - } -} - -/* - * increment traffic load value for tid and also remove - * any old values if passed the certain time period - */ -static u8 iwl4965_rs_tl_add_packet(struct iwl_lq_sta *lq_data, - struct ieee80211_hdr *hdr) -{ - u32 curr_time = jiffies_to_msecs(jiffies); - u32 time_diff; - s32 index; - struct iwl_traffic_load *tl = NULL; - u8 tid; - - if (ieee80211_is_data_qos(hdr->frame_control)) { - u8 *qc = ieee80211_get_qos_ctl(hdr); - tid = qc[0] & 0xf; - } else - return MAX_TID_COUNT; - - if (unlikely(tid >= TID_MAX_LOAD_COUNT)) - return MAX_TID_COUNT; - - tl = &lq_data->load[tid]; - - curr_time -= curr_time % TID_ROUND_VALUE; - - /* Happens only for the first packet. Initialize the data */ - if (!(tl->queue_count)) { - tl->total = 1; - tl->time_stamp = curr_time; - tl->queue_count = 1; - tl->head = 0; - tl->packet_count[0] = 1; - return MAX_TID_COUNT; - } - - time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time); - index = time_diff / TID_QUEUE_CELL_SPACING; - - /* The history is too long: remove data that is older than */ - /* TID_MAX_TIME_DIFF */ - if (index >= TID_QUEUE_MAX_SIZE) - iwl4965_rs_tl_rm_old_stats(tl, curr_time); - - index = (tl->head + index) % TID_QUEUE_MAX_SIZE; - tl->packet_count[index] = tl->packet_count[index] + 1; - tl->total = tl->total + 1; - - if ((index + 1) > tl->queue_count) - tl->queue_count = index + 1; - - return tid; -} - -/* - get the traffic load value for tid -*/ -static u32 iwl4965_rs_tl_get_load(struct iwl_lq_sta *lq_data, u8 tid) -{ - u32 curr_time = jiffies_to_msecs(jiffies); - u32 time_diff; - s32 index; - struct iwl_traffic_load *tl = NULL; - - if (tid >= TID_MAX_LOAD_COUNT) - return 0; - - tl = &(lq_data->load[tid]); - - curr_time -= curr_time % TID_ROUND_VALUE; - - if (!(tl->queue_count)) - return 0; - - time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time); - index = time_diff / TID_QUEUE_CELL_SPACING; - - /* The history is too long: remove data that is older than */ - /* TID_MAX_TIME_DIFF */ - if (index >= TID_QUEUE_MAX_SIZE) - iwl4965_rs_tl_rm_old_stats(tl, curr_time); - - return tl->total; -} - -static int iwl4965_rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv, - struct iwl_lq_sta *lq_data, u8 tid, - struct ieee80211_sta *sta) -{ - int ret = -EAGAIN; - u32 load; - - load = iwl4965_rs_tl_get_load(lq_data, tid); - - if (load > IWL_AGG_LOAD_THRESHOLD) { - IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n", - sta->addr, tid); - ret = ieee80211_start_tx_ba_session(sta, tid, 5000); - if (ret == -EAGAIN) { - /* - * driver and mac80211 is out of sync - * this might be cause by reloading firmware - * stop the tx ba session here - */ - IWL_ERR(priv, "Fail start Tx agg on tid: %d\n", - tid); - ieee80211_stop_tx_ba_session(sta, tid); - } - } else { - IWL_ERR(priv, "Aggregation not enabled for tid %d " - "because load = %u\n", tid, load); - } - return ret; -} - -static void iwl4965_rs_tl_turn_on_agg(struct iwl_priv *priv, u8 tid, - struct iwl_lq_sta *lq_data, - struct ieee80211_sta *sta) -{ - if (tid < TID_MAX_LOAD_COUNT) - iwl4965_rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta); - else - IWL_ERR(priv, "tid exceeds max load count: %d/%d\n", - tid, TID_MAX_LOAD_COUNT); -} - -static inline int iwl4965_get_iwl4965_num_of_ant_from_rate(u32 rate_n_flags) -{ - return !!(rate_n_flags & RATE_MCS_ANT_A_MSK) + - !!(rate_n_flags & RATE_MCS_ANT_B_MSK) + - !!(rate_n_flags & RATE_MCS_ANT_C_MSK); -} - -/* - * Static function to get the expected throughput from an iwl_scale_tbl_info - * that wraps a NULL pointer check - */ -static s32 -iwl4965_get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index) -{ - if (tbl->expected_tpt) - return tbl->expected_tpt[rs_index]; - return 0; -} - -/** - * iwl4965_rs_collect_tx_data - Update the success/failure sliding window - * - * We keep a sliding window of the last 62 packets transmitted - * at this rate. window->data contains the bitmask of successful - * packets. - */ -static int iwl4965_rs_collect_tx_data(struct iwl_scale_tbl_info *tbl, - int scale_index, int attempts, int successes) -{ - struct iwl_rate_scale_data *window = NULL; - static const u64 mask = (((u64)1) << (IWL_RATE_MAX_WINDOW - 1)); - s32 fail_count, tpt; - - if (scale_index < 0 || scale_index >= IWL_RATE_COUNT) - return -EINVAL; - - /* Select window for current tx bit rate */ - window = &(tbl->win[scale_index]); - - /* Get expected throughput */ - tpt = iwl4965_get_expected_tpt(tbl, scale_index); - - /* - * Keep track of only the latest 62 tx frame attempts in this rate's - * history window; anything older isn't really relevant any more. - * If we have filled up the sliding window, drop the oldest attempt; - * if the oldest attempt (highest bit in bitmap) shows "success", - * subtract "1" from the success counter (this is the main reason - * we keep these bitmaps!). - */ - while (attempts > 0) { - if (window->counter >= IWL_RATE_MAX_WINDOW) { - - /* remove earliest */ - window->counter = IWL_RATE_MAX_WINDOW - 1; - - if (window->data & mask) { - window->data &= ~mask; - window->success_counter--; - } - } - - /* Increment frames-attempted counter */ - window->counter++; - - /* Shift bitmap by one frame to throw away oldest history */ - window->data <<= 1; - - /* Mark the most recent #successes attempts as successful */ - if (successes > 0) { - window->success_counter++; - window->data |= 0x1; - successes--; - } - - attempts--; - } - - /* Calculate current success ratio, avoid divide-by-0! */ - if (window->counter > 0) - window->success_ratio = 128 * (100 * window->success_counter) - / window->counter; - else - window->success_ratio = IWL_INVALID_VALUE; - - fail_count = window->counter - window->success_counter; - - /* Calculate average throughput, if we have enough history. */ - if ((fail_count >= IWL_RATE_MIN_FAILURE_TH) || - (window->success_counter >= IWL_RATE_MIN_SUCCESS_TH)) - window->average_tpt = (window->success_ratio * tpt + 64) / 128; - else - window->average_tpt = IWL_INVALID_VALUE; - - /* Tag this window as having been updated */ - window->stamp = jiffies; - - return 0; -} - -/* - * Fill uCode API rate_n_flags field, based on "search" or "active" table. - */ -static u32 iwl4965_rate_n_flags_from_tbl(struct iwl_priv *priv, - struct iwl_scale_tbl_info *tbl, - int index, u8 use_green) -{ - u32 rate_n_flags = 0; - - if (is_legacy(tbl->lq_type)) { - rate_n_flags = iwlegacy_rates[index].plcp; - if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE) - rate_n_flags |= RATE_MCS_CCK_MSK; - - } else if (is_Ht(tbl->lq_type)) { - if (index > IWL_LAST_OFDM_RATE) { - IWL_ERR(priv, "Invalid HT rate index %d\n", index); - index = IWL_LAST_OFDM_RATE; - } - rate_n_flags = RATE_MCS_HT_MSK; - - if (is_siso(tbl->lq_type)) - rate_n_flags |= iwlegacy_rates[index].plcp_siso; - else - rate_n_flags |= iwlegacy_rates[index].plcp_mimo2; - } else { - IWL_ERR(priv, "Invalid tbl->lq_type %d\n", tbl->lq_type); - } - - rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) & - RATE_MCS_ANT_ABC_MSK); - - if (is_Ht(tbl->lq_type)) { - if (tbl->is_ht40) { - if (tbl->is_dup) - rate_n_flags |= RATE_MCS_DUP_MSK; - else - rate_n_flags |= RATE_MCS_HT40_MSK; - } - if (tbl->is_SGI) - rate_n_flags |= RATE_MCS_SGI_MSK; - - if (use_green) { - rate_n_flags |= RATE_MCS_GF_MSK; - if (is_siso(tbl->lq_type) && tbl->is_SGI) { - rate_n_flags &= ~RATE_MCS_SGI_MSK; - IWL_ERR(priv, "GF was set with SGI:SISO\n"); - } - } - } - return rate_n_flags; -} - -/* - * Interpret uCode API's rate_n_flags format, - * fill "search" or "active" tx mode table. - */ -static int iwl4965_rs_get_tbl_info_from_mcs(const u32 rate_n_flags, - enum ieee80211_band band, - struct iwl_scale_tbl_info *tbl, - int *rate_idx) -{ - u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK); - u8 iwl4965_num_of_ant = iwl4965_get_iwl4965_num_of_ant_from_rate(rate_n_flags); - u8 mcs; - - memset(tbl, 0, sizeof(struct iwl_scale_tbl_info)); - *rate_idx = iwl4965_hwrate_to_plcp_idx(rate_n_flags); - - if (*rate_idx == IWL_RATE_INVALID) { - *rate_idx = -1; - return -EINVAL; - } - tbl->is_SGI = 0; /* default legacy setup */ - tbl->is_ht40 = 0; - tbl->is_dup = 0; - tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS); - tbl->lq_type = LQ_NONE; - tbl->max_search = IWL_MAX_SEARCH; - - /* legacy rate format */ - if (!(rate_n_flags & RATE_MCS_HT_MSK)) { - if (iwl4965_num_of_ant == 1) { - if (band == IEEE80211_BAND_5GHZ) - tbl->lq_type = LQ_A; - else - tbl->lq_type = LQ_G; - } - /* HT rate format */ - } else { - if (rate_n_flags & RATE_MCS_SGI_MSK) - tbl->is_SGI = 1; - - if ((rate_n_flags & RATE_MCS_HT40_MSK) || - (rate_n_flags & RATE_MCS_DUP_MSK)) - tbl->is_ht40 = 1; - - if (rate_n_flags & RATE_MCS_DUP_MSK) - tbl->is_dup = 1; - - mcs = iwl4965_rs_extract_rate(rate_n_flags); - - /* SISO */ - if (mcs <= IWL_RATE_SISO_60M_PLCP) { - if (iwl4965_num_of_ant == 1) - tbl->lq_type = LQ_SISO; /*else NONE*/ - /* MIMO2 */ - } else { - if (iwl4965_num_of_ant == 2) - tbl->lq_type = LQ_MIMO2; - } - } - return 0; -} - -/* switch to another antenna/antennas and return 1 */ -/* if no other valid antenna found, return 0 */ -static int iwl4965_rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags, - struct iwl_scale_tbl_info *tbl) -{ - u8 new_ant_type; - - if (!tbl->ant_type || tbl->ant_type > ANT_ABC) - return 0; - - if (!iwl4965_rs_is_valid_ant(valid_ant, tbl->ant_type)) - return 0; - - new_ant_type = ant_toggle_lookup[tbl->ant_type]; - - while ((new_ant_type != tbl->ant_type) && - !iwl4965_rs_is_valid_ant(valid_ant, new_ant_type)) - new_ant_type = ant_toggle_lookup[new_ant_type]; - - if (new_ant_type == tbl->ant_type) - return 0; - - tbl->ant_type = new_ant_type; - *rate_n_flags &= ~RATE_MCS_ANT_ABC_MSK; - *rate_n_flags |= new_ant_type << RATE_MCS_ANT_POS; - return 1; -} - -/** - * Green-field mode is valid if the station supports it and - * there are no non-GF stations present in the BSS. - */ -static bool iwl4965_rs_use_green(struct ieee80211_sta *sta) -{ - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - - return (sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) && - !(ctx->ht.non_gf_sta_present); -} - -/** - * iwl4965_rs_get_supported_rates - get the available rates - * - * if management frame or broadcast frame only return - * basic available rates. - * - */ -static u16 iwl4965_rs_get_supported_rates(struct iwl_lq_sta *lq_sta, - struct ieee80211_hdr *hdr, - enum iwl_table_type rate_type) -{ - if (is_legacy(rate_type)) { - return lq_sta->active_legacy_rate; - } else { - if (is_siso(rate_type)) - return lq_sta->active_siso_rate; - else - return lq_sta->active_mimo2_rate; - } -} - -static u16 -iwl4965_rs_get_adjacent_rate(struct iwl_priv *priv, u8 index, u16 rate_mask, - int rate_type) -{ - u8 high = IWL_RATE_INVALID; - u8 low = IWL_RATE_INVALID; - - /* 802.11A or ht walks to the next literal adjacent rate in - * the rate table */ - if (is_a_band(rate_type) || !is_legacy(rate_type)) { - int i; - u32 mask; - - /* Find the previous rate that is in the rate mask */ - i = index - 1; - for (mask = (1 << i); i >= 0; i--, mask >>= 1) { - if (rate_mask & mask) { - low = i; - break; - } - } - - /* Find the next rate that is in the rate mask */ - i = index + 1; - for (mask = (1 << i); i < IWL_RATE_COUNT; i++, mask <<= 1) { - if (rate_mask & mask) { - high = i; - break; - } - } - - return (high << 8) | low; - } - - low = index; - while (low != IWL_RATE_INVALID) { - low = iwlegacy_rates[low].prev_rs; - if (low == IWL_RATE_INVALID) - break; - if (rate_mask & (1 << low)) - break; - IWL_DEBUG_RATE(priv, "Skipping masked lower rate: %d\n", low); - } - - high = index; - while (high != IWL_RATE_INVALID) { - high = iwlegacy_rates[high].next_rs; - if (high == IWL_RATE_INVALID) - break; - if (rate_mask & (1 << high)) - break; - IWL_DEBUG_RATE(priv, "Skipping masked higher rate: %d\n", high); - } - - return (high << 8) | low; -} - -static u32 iwl4965_rs_get_lower_rate(struct iwl_lq_sta *lq_sta, - struct iwl_scale_tbl_info *tbl, - u8 scale_index, u8 ht_possible) -{ - s32 low; - u16 rate_mask; - u16 high_low; - u8 switch_to_legacy = 0; - u8 is_green = lq_sta->is_green; - struct iwl_priv *priv = lq_sta->drv; - - /* check if we need to switch from HT to legacy rates. - * assumption is that mandatory rates (1Mbps or 6Mbps) - * are always supported (spec demand) */ - if (!is_legacy(tbl->lq_type) && (!ht_possible || !scale_index)) { - switch_to_legacy = 1; - scale_index = rs_ht_to_legacy[scale_index]; - if (lq_sta->band == IEEE80211_BAND_5GHZ) - tbl->lq_type = LQ_A; - else - tbl->lq_type = LQ_G; - - if (iwl4965_num_of_ant(tbl->ant_type) > 1) - tbl->ant_type = - iwl4965_first_antenna(priv->hw_params.valid_tx_ant); - - tbl->is_ht40 = 0; - tbl->is_SGI = 0; - tbl->max_search = IWL_MAX_SEARCH; - } - - rate_mask = iwl4965_rs_get_supported_rates(lq_sta, NULL, tbl->lq_type); - - /* Mask with station rate restriction */ - if (is_legacy(tbl->lq_type)) { - /* supp_rates has no CCK bits in A mode */ - if (lq_sta->band == IEEE80211_BAND_5GHZ) - rate_mask = (u16)(rate_mask & - (lq_sta->supp_rates << IWL_FIRST_OFDM_RATE)); - else - rate_mask = (u16)(rate_mask & lq_sta->supp_rates); - } - - /* If we switched from HT to legacy, check current rate */ - if (switch_to_legacy && (rate_mask & (1 << scale_index))) { - low = scale_index; - goto out; - } - - high_low = iwl4965_rs_get_adjacent_rate(lq_sta->drv, - scale_index, rate_mask, - tbl->lq_type); - low = high_low & 0xff; - - if (low == IWL_RATE_INVALID) - low = scale_index; - -out: - return iwl4965_rate_n_flags_from_tbl(lq_sta->drv, tbl, low, is_green); -} - -/* - * Simple function to compare two rate scale table types - */ -static bool iwl4965_table_type_matches(struct iwl_scale_tbl_info *a, - struct iwl_scale_tbl_info *b) -{ - return (a->lq_type == b->lq_type) && (a->ant_type == b->ant_type) && - (a->is_SGI == b->is_SGI); -} - -/* - * mac80211 sends us Tx status - */ -static void -iwl4965_rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb) -{ - int legacy_success; - int retries; - int rs_index, mac_index, i; - struct iwl_lq_sta *lq_sta = priv_sta; - struct iwl_link_quality_cmd *table; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - struct iwl_priv *priv = (struct iwl_priv *)priv_r; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - enum mac80211_rate_control_flags mac_flags; - u32 tx_rate; - struct iwl_scale_tbl_info tbl_type; - struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl; - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - - IWL_DEBUG_RATE_LIMIT(priv, - "get frame ack response, update rate scale window\n"); - - /* Treat uninitialized rate scaling data same as non-existing. */ - if (!lq_sta) { - IWL_DEBUG_RATE(priv, "Station rate scaling not created yet.\n"); - return; - } else if (!lq_sta->drv) { - IWL_DEBUG_RATE(priv, "Rate scaling not initialized yet.\n"); - return; - } - - if (!ieee80211_is_data(hdr->frame_control) || - info->flags & IEEE80211_TX_CTL_NO_ACK) - return; - - /* This packet was aggregated but doesn't carry status info */ - if ((info->flags & IEEE80211_TX_CTL_AMPDU) && - !(info->flags & IEEE80211_TX_STAT_AMPDU)) - return; - - /* - * Ignore this Tx frame response if its initial rate doesn't match - * that of latest Link Quality command. There may be stragglers - * from a previous Link Quality command, but we're no longer interested - * in those; they're either from the "active" mode while we're trying - * to check "search" mode, or a prior "search" mode after we've moved - * to a new "search" mode (which might become the new "active" mode). - */ - table = &lq_sta->lq; - tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags); - iwl4965_rs_get_tbl_info_from_mcs(tx_rate, - priv->band, &tbl_type, &rs_index); - if (priv->band == IEEE80211_BAND_5GHZ) - rs_index -= IWL_FIRST_OFDM_RATE; - mac_flags = info->status.rates[0].flags; - mac_index = info->status.rates[0].idx; - /* For HT packets, map MCS to PLCP */ - if (mac_flags & IEEE80211_TX_RC_MCS) { - mac_index &= RATE_MCS_CODE_MSK; /* Remove # of streams */ - if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE)) - mac_index++; - /* - * mac80211 HT index is always zero-indexed; we need to move - * HT OFDM rates after CCK rates in 2.4 GHz band - */ - if (priv->band == IEEE80211_BAND_2GHZ) - mac_index += IWL_FIRST_OFDM_RATE; - } - /* Here we actually compare this rate to the latest LQ command */ - if ((mac_index < 0) || - (tbl_type.is_SGI != - !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) || - (tbl_type.is_ht40 != - !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) || - (tbl_type.is_dup != - !!(mac_flags & IEEE80211_TX_RC_DUP_DATA)) || - (tbl_type.ant_type != info->antenna_sel_tx) || - (!!(tx_rate & RATE_MCS_HT_MSK) != - !!(mac_flags & IEEE80211_TX_RC_MCS)) || - (!!(tx_rate & RATE_MCS_GF_MSK) != - !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) || - (rs_index != mac_index)) { - IWL_DEBUG_RATE(priv, - "initial rate %d does not match %d (0x%x)\n", - mac_index, rs_index, tx_rate); - /* - * Since rates mis-match, the last LQ command may have failed. - * After IWL_MISSED_RATE_MAX mis-matches, resync the uCode with - * ... driver. - */ - lq_sta->missed_rate_counter++; - if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) { - lq_sta->missed_rate_counter = 0; - iwl_legacy_send_lq_cmd(priv, ctx, &lq_sta->lq, - CMD_ASYNC, false); - } - /* Regardless, ignore this status info for outdated rate */ - return; - } else - /* Rate did match, so reset the missed_rate_counter */ - lq_sta->missed_rate_counter = 0; - - /* Figure out if rate scale algorithm is in active or search table */ - if (iwl4965_table_type_matches(&tbl_type, - &(lq_sta->lq_info[lq_sta->active_tbl]))) { - curr_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - other_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); - } else if (iwl4965_table_type_matches(&tbl_type, - &lq_sta->lq_info[1 - lq_sta->active_tbl])) { - curr_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); - other_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - } else { - IWL_DEBUG_RATE(priv, - "Neither active nor search matches tx rate\n"); - tmp_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - IWL_DEBUG_RATE(priv, "active- lq:%x, ant:%x, SGI:%d\n", - tmp_tbl->lq_type, tmp_tbl->ant_type, tmp_tbl->is_SGI); - tmp_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); - IWL_DEBUG_RATE(priv, "search- lq:%x, ant:%x, SGI:%d\n", - tmp_tbl->lq_type, tmp_tbl->ant_type, tmp_tbl->is_SGI); - IWL_DEBUG_RATE(priv, "actual- lq:%x, ant:%x, SGI:%d\n", - tbl_type.lq_type, tbl_type.ant_type, tbl_type.is_SGI); - /* - * no matching table found, let's by-pass the data collection - * and continue to perform rate scale to find the rate table - */ - iwl4965_rs_stay_in_table(lq_sta, true); - goto done; - } - - /* - * Updating the frame history depends on whether packets were - * aggregated. - * - * For aggregation, all packets were transmitted at the same rate, the - * first index into rate scale table. - */ - if (info->flags & IEEE80211_TX_STAT_AMPDU) { - tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags); - iwl4965_rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type, - &rs_index); - iwl4965_rs_collect_tx_data(curr_tbl, rs_index, - info->status.ampdu_len, - info->status.ampdu_ack_len); - - /* Update success/fail counts if not searching for new mode */ - if (lq_sta->stay_in_tbl) { - lq_sta->total_success += info->status.ampdu_ack_len; - lq_sta->total_failed += (info->status.ampdu_len - - info->status.ampdu_ack_len); - } - } else { - /* - * For legacy, update frame history with for each Tx retry. - */ - retries = info->status.rates[0].count - 1; - /* HW doesn't send more than 15 retries */ - retries = min(retries, 15); - - /* The last transmission may have been successful */ - legacy_success = !!(info->flags & IEEE80211_TX_STAT_ACK); - /* Collect data for each rate used during failed TX attempts */ - for (i = 0; i <= retries; ++i) { - tx_rate = le32_to_cpu(table->rs_table[i].rate_n_flags); - iwl4965_rs_get_tbl_info_from_mcs(tx_rate, priv->band, - &tbl_type, &rs_index); - /* - * Only collect stats if retried rate is in the same RS - * table as active/search. - */ - if (iwl4965_table_type_matches(&tbl_type, curr_tbl)) - tmp_tbl = curr_tbl; - else if (iwl4965_table_type_matches(&tbl_type, - other_tbl)) - tmp_tbl = other_tbl; - else - continue; - iwl4965_rs_collect_tx_data(tmp_tbl, rs_index, 1, - i < retries ? 0 : legacy_success); - } - - /* Update success/fail counts if not searching for new mode */ - if (lq_sta->stay_in_tbl) { - lq_sta->total_success += legacy_success; - lq_sta->total_failed += retries + (1 - legacy_success); - } - } - /* The last TX rate is cached in lq_sta; it's set in if/else above */ - lq_sta->last_rate_n_flags = tx_rate; -done: - /* See if there's a better rate or modulation mode to try. */ - if (sta && sta->supp_rates[sband->band]) - iwl4965_rs_rate_scale_perform(priv, skb, sta, lq_sta); -} - -/* - * Begin a period of staying with a selected modulation mode. - * Set "stay_in_tbl" flag to prevent any mode switches. - * Set frame tx success limits according to legacy vs. high-throughput, - * and reset overall (spanning all rates) tx success history statistics. - * These control how long we stay using same modulation mode before - * searching for a new mode. - */ -static void iwl4965_rs_set_stay_in_table(struct iwl_priv *priv, u8 is_legacy, - struct iwl_lq_sta *lq_sta) -{ - IWL_DEBUG_RATE(priv, "we are staying in the same table\n"); - lq_sta->stay_in_tbl = 1; /* only place this gets set */ - if (is_legacy) { - lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT; - lq_sta->max_failure_limit = IWL_LEGACY_FAILURE_LIMIT; - lq_sta->max_success_limit = IWL_LEGACY_SUCCESS_LIMIT; - } else { - lq_sta->table_count_limit = IWL_NONE_LEGACY_TABLE_COUNT; - lq_sta->max_failure_limit = IWL_NONE_LEGACY_FAILURE_LIMIT; - lq_sta->max_success_limit = IWL_NONE_LEGACY_SUCCESS_LIMIT; - } - lq_sta->table_count = 0; - lq_sta->total_failed = 0; - lq_sta->total_success = 0; - lq_sta->flush_timer = jiffies; - lq_sta->action_counter = 0; -} - -/* - * Find correct throughput table for given mode of modulation - */ -static void iwl4965_rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta, - struct iwl_scale_tbl_info *tbl) -{ - /* Used to choose among HT tables */ - s32 (*ht_tbl_pointer)[IWL_RATE_COUNT]; - - /* Check for invalid LQ type */ - if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) { - tbl->expected_tpt = expected_tpt_legacy; - return; - } - - /* Legacy rates have only one table */ - if (is_legacy(tbl->lq_type)) { - tbl->expected_tpt = expected_tpt_legacy; - return; - } - - /* Choose among many HT tables depending on number of streams - * (SISO/MIMO2), channel width (20/40), SGI, and aggregation - * status */ - if (is_siso(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup)) - ht_tbl_pointer = expected_tpt_siso20MHz; - else if (is_siso(tbl->lq_type)) - ht_tbl_pointer = expected_tpt_siso40MHz; - else if (is_mimo2(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup)) - ht_tbl_pointer = expected_tpt_mimo2_20MHz; - else /* if (is_mimo2(tbl->lq_type)) <-- must be true */ - ht_tbl_pointer = expected_tpt_mimo2_40MHz; - - if (!tbl->is_SGI && !lq_sta->is_agg) /* Normal */ - tbl->expected_tpt = ht_tbl_pointer[0]; - else if (tbl->is_SGI && !lq_sta->is_agg) /* SGI */ - tbl->expected_tpt = ht_tbl_pointer[1]; - else if (!tbl->is_SGI && lq_sta->is_agg) /* AGG */ - tbl->expected_tpt = ht_tbl_pointer[2]; - else /* AGG+SGI */ - tbl->expected_tpt = ht_tbl_pointer[3]; -} - -/* - * Find starting rate for new "search" high-throughput mode of modulation. - * Goal is to find lowest expected rate (under perfect conditions) that is - * above the current measured throughput of "active" mode, to give new mode - * a fair chance to prove itself without too many challenges. - * - * This gets called when transitioning to more aggressive modulation - * (i.e. legacy to SISO or MIMO, or SISO to MIMO), as well as less aggressive - * (i.e. MIMO to SISO). When moving to MIMO, bit rate will typically need - * to decrease to match "active" throughput. When moving from MIMO to SISO, - * bit rate will typically need to increase, but not if performance was bad. - */ -static s32 iwl4965_rs_get_best_rate(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, - struct iwl_scale_tbl_info *tbl, /* "search" */ - u16 rate_mask, s8 index) -{ - /* "active" values */ - struct iwl_scale_tbl_info *active_tbl = - &(lq_sta->lq_info[lq_sta->active_tbl]); - s32 active_sr = active_tbl->win[index].success_ratio; - s32 active_tpt = active_tbl->expected_tpt[index]; - - /* expected "search" throughput */ - s32 *tpt_tbl = tbl->expected_tpt; - - s32 new_rate, high, low, start_hi; - u16 high_low; - s8 rate = index; - - new_rate = high = low = start_hi = IWL_RATE_INVALID; - - for (; ;) { - high_low = iwl4965_rs_get_adjacent_rate(priv, rate, rate_mask, - tbl->lq_type); - - low = high_low & 0xff; - high = (high_low >> 8) & 0xff; - - /* - * Lower the "search" bit rate, to give new "search" mode - * approximately the same throughput as "active" if: - * - * 1) "Active" mode has been working modestly well (but not - * great), and expected "search" throughput (under perfect - * conditions) at candidate rate is above the actual - * measured "active" throughput (but less than expected - * "active" throughput under perfect conditions). - * OR - * 2) "Active" mode has been working perfectly or very well - * and expected "search" throughput (under perfect - * conditions) at candidate rate is above expected - * "active" throughput (under perfect conditions). - */ - if ((((100 * tpt_tbl[rate]) > lq_sta->last_tpt) && - ((active_sr > IWL_RATE_DECREASE_TH) && - (active_sr <= IWL_RATE_HIGH_TH) && - (tpt_tbl[rate] <= active_tpt))) || - ((active_sr >= IWL_RATE_SCALE_SWITCH) && - (tpt_tbl[rate] > active_tpt))) { - - /* (2nd or later pass) - * If we've already tried to raise the rate, and are - * now trying to lower it, use the higher rate. */ - if (start_hi != IWL_RATE_INVALID) { - new_rate = start_hi; - break; - } - - new_rate = rate; - - /* Loop again with lower rate */ - if (low != IWL_RATE_INVALID) - rate = low; - - /* Lower rate not available, use the original */ - else - break; - - /* Else try to raise the "search" rate to match "active" */ - } else { - /* (2nd or later pass) - * If we've already tried to lower the rate, and are - * now trying to raise it, use the lower rate. */ - if (new_rate != IWL_RATE_INVALID) - break; - - /* Loop again with higher rate */ - else if (high != IWL_RATE_INVALID) { - start_hi = high; - rate = high; - - /* Higher rate not available, use the original */ - } else { - new_rate = rate; - break; - } - } - } - - return new_rate; -} - -/* - * Set up search table for MIMO2 - */ -static int iwl4965_rs_switch_to_mimo2(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, - struct ieee80211_conf *conf, - struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl, int index) -{ - u16 rate_mask; - s32 rate; - s8 is_green = lq_sta->is_green; - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - - if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported) - return -1; - - if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2) - == WLAN_HT_CAP_SM_PS_STATIC) - return -1; - - /* Need both Tx chains/antennas to support MIMO */ - if (priv->hw_params.tx_chains_num < 2) - return -1; - - IWL_DEBUG_RATE(priv, "LQ: try to switch to MIMO2\n"); - - tbl->lq_type = LQ_MIMO2; - tbl->is_dup = lq_sta->is_dup; - tbl->action = 0; - tbl->max_search = IWL_MAX_SEARCH; - rate_mask = lq_sta->active_mimo2_rate; - - if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap)) - tbl->is_ht40 = 1; - else - tbl->is_ht40 = 0; - - iwl4965_rs_set_expected_tpt_table(lq_sta, tbl); - - rate = iwl4965_rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index); - - IWL_DEBUG_RATE(priv, "LQ: MIMO2 best rate %d mask %X\n", - rate, rate_mask); - if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) { - IWL_DEBUG_RATE(priv, - "Can't switch with index %d rate mask %x\n", - rate, rate_mask); - return -1; - } - tbl->current_rate = iwl4965_rate_n_flags_from_tbl(priv, - tbl, rate, is_green); - - IWL_DEBUG_RATE(priv, "LQ: Switch to new mcs %X index is green %X\n", - tbl->current_rate, is_green); - return 0; -} - -/* - * Set up search table for SISO - */ -static int iwl4965_rs_switch_to_siso(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, - struct ieee80211_conf *conf, - struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl, int index) -{ - u16 rate_mask; - u8 is_green = lq_sta->is_green; - s32 rate; - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - - if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported) - return -1; - - IWL_DEBUG_RATE(priv, "LQ: try to switch to SISO\n"); - - tbl->is_dup = lq_sta->is_dup; - tbl->lq_type = LQ_SISO; - tbl->action = 0; - tbl->max_search = IWL_MAX_SEARCH; - rate_mask = lq_sta->active_siso_rate; - - if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap)) - tbl->is_ht40 = 1; - else - tbl->is_ht40 = 0; - - if (is_green) - tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/ - - iwl4965_rs_set_expected_tpt_table(lq_sta, tbl); - rate = iwl4965_rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index); - - IWL_DEBUG_RATE(priv, "LQ: get best rate %d mask %X\n", rate, rate_mask); - if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) { - IWL_DEBUG_RATE(priv, - "can not switch with index %d rate mask %x\n", - rate, rate_mask); - return -1; - } - tbl->current_rate = iwl4965_rate_n_flags_from_tbl(priv, - tbl, rate, is_green); - IWL_DEBUG_RATE(priv, "LQ: Switch to new mcs %X index is green %X\n", - tbl->current_rate, is_green); - return 0; -} - -/* - * Try to switch to new modulation mode from legacy - */ -static int iwl4965_rs_move_legacy_other(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, - struct ieee80211_conf *conf, - struct ieee80211_sta *sta, - int index) -{ - struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - struct iwl_scale_tbl_info *search_tbl = - &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct iwl_rate_scale_data *window = &(tbl->win[index]); - u32 sz = (sizeof(struct iwl_scale_tbl_info) - - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); - u8 start_action; - u8 valid_tx_ant = priv->hw_params.valid_tx_ant; - u8 tx_chains_num = priv->hw_params.tx_chains_num; - int ret = 0; - u8 update_search_tbl_counter = 0; - - tbl->action = IWL_LEGACY_SWITCH_SISO; - - start_action = tbl->action; - for (; ;) { - lq_sta->action_counter++; - switch (tbl->action) { - case IWL_LEGACY_SWITCH_ANTENNA1: - case IWL_LEGACY_SWITCH_ANTENNA2: - IWL_DEBUG_RATE(priv, "LQ: Legacy toggle Antenna\n"); - - if ((tbl->action == IWL_LEGACY_SWITCH_ANTENNA1 && - tx_chains_num <= 1) || - (tbl->action == IWL_LEGACY_SWITCH_ANTENNA2 && - tx_chains_num <= 2)) - break; - - /* Don't change antenna if success has been great */ - if (window->success_ratio >= IWL_RS_GOOD_RATIO) - break; - - /* Set up search table to try other antenna */ - memcpy(search_tbl, tbl, sz); - - if (iwl4965_rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, search_tbl)) { - update_search_tbl_counter = 1; - iwl4965_rs_set_expected_tpt_table(lq_sta, - search_tbl); - goto out; - } - break; - case IWL_LEGACY_SWITCH_SISO: - IWL_DEBUG_RATE(priv, "LQ: Legacy switch to SISO\n"); - - /* Set up search table to try SISO */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - ret = iwl4965_rs_switch_to_siso(priv, lq_sta, conf, sta, - search_tbl, index); - if (!ret) { - lq_sta->action_counter = 0; - goto out; - } - - break; - case IWL_LEGACY_SWITCH_MIMO2_AB: - case IWL_LEGACY_SWITCH_MIMO2_AC: - case IWL_LEGACY_SWITCH_MIMO2_BC: - IWL_DEBUG_RATE(priv, "LQ: Legacy switch to MIMO2\n"); - - /* Set up search table to try MIMO */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - - if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AB) - search_tbl->ant_type = ANT_AB; - else if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AC) - search_tbl->ant_type = ANT_AC; - else - search_tbl->ant_type = ANT_BC; - - if (!iwl4965_rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; - - ret = iwl4965_rs_switch_to_mimo2(priv, lq_sta, - conf, sta, - search_tbl, index); - if (!ret) { - lq_sta->action_counter = 0; - goto out; - } - break; - } - tbl->action++; - if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC) - tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; - - if (tbl->action == start_action) - break; - - } - search_tbl->lq_type = LQ_NONE; - return 0; - -out: - lq_sta->search_better_tbl = 1; - tbl->action++; - if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC) - tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; - if (update_search_tbl_counter) - search_tbl->action = tbl->action; - return 0; - -} - -/* - * Try to switch to new modulation mode from SISO - */ -static int iwl4965_rs_move_siso_to_other(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, - struct ieee80211_conf *conf, - struct ieee80211_sta *sta, int index) -{ - u8 is_green = lq_sta->is_green; - struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - struct iwl_scale_tbl_info *search_tbl = - &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct iwl_rate_scale_data *window = &(tbl->win[index]); - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; - u32 sz = (sizeof(struct iwl_scale_tbl_info) - - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); - u8 start_action; - u8 valid_tx_ant = priv->hw_params.valid_tx_ant; - u8 tx_chains_num = priv->hw_params.tx_chains_num; - u8 update_search_tbl_counter = 0; - int ret; - - start_action = tbl->action; - - for (;;) { - lq_sta->action_counter++; - switch (tbl->action) { - case IWL_SISO_SWITCH_ANTENNA1: - case IWL_SISO_SWITCH_ANTENNA2: - IWL_DEBUG_RATE(priv, "LQ: SISO toggle Antenna\n"); - if ((tbl->action == IWL_SISO_SWITCH_ANTENNA1 && - tx_chains_num <= 1) || - (tbl->action == IWL_SISO_SWITCH_ANTENNA2 && - tx_chains_num <= 2)) - break; - - if (window->success_ratio >= IWL_RS_GOOD_RATIO) - break; - - memcpy(search_tbl, tbl, sz); - if (iwl4965_rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, search_tbl)) { - update_search_tbl_counter = 1; - goto out; - } - break; - case IWL_SISO_SWITCH_MIMO2_AB: - case IWL_SISO_SWITCH_MIMO2_AC: - case IWL_SISO_SWITCH_MIMO2_BC: - IWL_DEBUG_RATE(priv, "LQ: SISO switch to MIMO2\n"); - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - - if (tbl->action == IWL_SISO_SWITCH_MIMO2_AB) - search_tbl->ant_type = ANT_AB; - else if (tbl->action == IWL_SISO_SWITCH_MIMO2_AC) - search_tbl->ant_type = ANT_AC; - else - search_tbl->ant_type = ANT_BC; - - if (!iwl4965_rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; - - ret = iwl4965_rs_switch_to_mimo2(priv, lq_sta, - conf, sta, - search_tbl, index); - if (!ret) - goto out; - break; - case IWL_SISO_SWITCH_GI: - if (!tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_20)) - break; - if (tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_40)) - break; - - IWL_DEBUG_RATE(priv, "LQ: SISO toggle SGI/NGI\n"); - - memcpy(search_tbl, tbl, sz); - if (is_green) { - if (!tbl->is_SGI) - break; - else - IWL_ERR(priv, - "SGI was set in GF+SISO\n"); - } - search_tbl->is_SGI = !tbl->is_SGI; - iwl4965_rs_set_expected_tpt_table(lq_sta, search_tbl); - if (tbl->is_SGI) { - s32 tpt = lq_sta->last_tpt / 100; - if (tpt >= search_tbl->expected_tpt[index]) - break; - } - search_tbl->current_rate = - iwl4965_rate_n_flags_from_tbl(priv, search_tbl, - index, is_green); - update_search_tbl_counter = 1; - goto out; - } - tbl->action++; - if (tbl->action > IWL_SISO_SWITCH_GI) - tbl->action = IWL_SISO_SWITCH_ANTENNA1; - - if (tbl->action == start_action) - break; - } - search_tbl->lq_type = LQ_NONE; - return 0; - - out: - lq_sta->search_better_tbl = 1; - tbl->action++; - if (tbl->action > IWL_SISO_SWITCH_GI) - tbl->action = IWL_SISO_SWITCH_ANTENNA1; - if (update_search_tbl_counter) - search_tbl->action = tbl->action; - - return 0; -} - -/* - * Try to switch to new modulation mode from MIMO2 - */ -static int iwl4965_rs_move_mimo2_to_other(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, - struct ieee80211_conf *conf, - struct ieee80211_sta *sta, int index) -{ - s8 is_green = lq_sta->is_green; - struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - struct iwl_scale_tbl_info *search_tbl = - &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct iwl_rate_scale_data *window = &(tbl->win[index]); - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; - u32 sz = (sizeof(struct iwl_scale_tbl_info) - - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); - u8 start_action; - u8 valid_tx_ant = priv->hw_params.valid_tx_ant; - u8 tx_chains_num = priv->hw_params.tx_chains_num; - u8 update_search_tbl_counter = 0; - int ret; - - start_action = tbl->action; - for (;;) { - lq_sta->action_counter++; - switch (tbl->action) { - case IWL_MIMO2_SWITCH_ANTENNA1: - case IWL_MIMO2_SWITCH_ANTENNA2: - IWL_DEBUG_RATE(priv, "LQ: MIMO2 toggle Antennas\n"); - - if (tx_chains_num <= 2) - break; - - if (window->success_ratio >= IWL_RS_GOOD_RATIO) - break; - - memcpy(search_tbl, tbl, sz); - if (iwl4965_rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, search_tbl)) { - update_search_tbl_counter = 1; - goto out; - } - break; - case IWL_MIMO2_SWITCH_SISO_A: - case IWL_MIMO2_SWITCH_SISO_B: - case IWL_MIMO2_SWITCH_SISO_C: - IWL_DEBUG_RATE(priv, "LQ: MIMO2 switch to SISO\n"); - - /* Set up new search table for SISO */ - memcpy(search_tbl, tbl, sz); - - if (tbl->action == IWL_MIMO2_SWITCH_SISO_A) - search_tbl->ant_type = ANT_A; - else if (tbl->action == IWL_MIMO2_SWITCH_SISO_B) - search_tbl->ant_type = ANT_B; - else - search_tbl->ant_type = ANT_C; - - if (!iwl4965_rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; - - ret = iwl4965_rs_switch_to_siso(priv, lq_sta, - conf, sta, - search_tbl, index); - if (!ret) - goto out; - - break; - - case IWL_MIMO2_SWITCH_GI: - if (!tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_20)) - break; - if (tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_40)) - break; - - IWL_DEBUG_RATE(priv, "LQ: MIMO2 toggle SGI/NGI\n"); - - /* Set up new search table for MIMO2 */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = !tbl->is_SGI; - iwl4965_rs_set_expected_tpt_table(lq_sta, search_tbl); - /* - * If active table already uses the fastest possible - * modulation (dual stream with short guard interval), - * and it's working well, there's no need to look - * for a better type of modulation! - */ - if (tbl->is_SGI) { - s32 tpt = lq_sta->last_tpt / 100; - if (tpt >= search_tbl->expected_tpt[index]) - break; - } - search_tbl->current_rate = - iwl4965_rate_n_flags_from_tbl(priv, search_tbl, - index, is_green); - update_search_tbl_counter = 1; - goto out; - - } - tbl->action++; - if (tbl->action > IWL_MIMO2_SWITCH_GI) - tbl->action = IWL_MIMO2_SWITCH_ANTENNA1; - - if (tbl->action == start_action) - break; - } - search_tbl->lq_type = LQ_NONE; - return 0; - out: - lq_sta->search_better_tbl = 1; - tbl->action++; - if (tbl->action > IWL_MIMO2_SWITCH_GI) - tbl->action = IWL_MIMO2_SWITCH_ANTENNA1; - if (update_search_tbl_counter) - search_tbl->action = tbl->action; - - return 0; - -} - -/* - * Check whether we should continue using same modulation mode, or - * begin search for a new mode, based on: - * 1) # tx successes or failures while using this mode - * 2) # times calling this function - * 3) elapsed time in this mode (not used, for now) - */ -static void -iwl4965_rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search) -{ - struct iwl_scale_tbl_info *tbl; - int i; - int active_tbl; - int flush_interval_passed = 0; - struct iwl_priv *priv; - - priv = lq_sta->drv; - active_tbl = lq_sta->active_tbl; - - tbl = &(lq_sta->lq_info[active_tbl]); - - /* If we've been disallowing search, see if we should now allow it */ - if (lq_sta->stay_in_tbl) { - - /* Elapsed time using current modulation mode */ - if (lq_sta->flush_timer) - flush_interval_passed = - time_after(jiffies, - (unsigned long)(lq_sta->flush_timer + - IWL_RATE_SCALE_FLUSH_INTVL)); - - /* - * Check if we should allow search for new modulation mode. - * If many frames have failed or succeeded, or we've used - * this same modulation for a long time, allow search, and - * reset history stats that keep track of whether we should - * allow a new search. Also (below) reset all bitmaps and - * stats in active history. - */ - if (force_search || - (lq_sta->total_failed > lq_sta->max_failure_limit) || - (lq_sta->total_success > lq_sta->max_success_limit) || - ((!lq_sta->search_better_tbl) && (lq_sta->flush_timer) - && (flush_interval_passed))) { - IWL_DEBUG_RATE(priv, "LQ: stay is expired %d %d %d\n:", - lq_sta->total_failed, - lq_sta->total_success, - flush_interval_passed); - - /* Allow search for new mode */ - lq_sta->stay_in_tbl = 0; /* only place reset */ - lq_sta->total_failed = 0; - lq_sta->total_success = 0; - lq_sta->flush_timer = 0; - - /* - * Else if we've used this modulation mode enough repetitions - * (regardless of elapsed time or success/failure), reset - * history bitmaps and rate-specific stats for all rates in - * active table. - */ - } else { - lq_sta->table_count++; - if (lq_sta->table_count >= - lq_sta->table_count_limit) { - lq_sta->table_count = 0; - - IWL_DEBUG_RATE(priv, - "LQ: stay in table clear win\n"); - for (i = 0; i < IWL_RATE_COUNT; i++) - iwl4965_rs_rate_scale_clear_window( - &(tbl->win[i])); - } - } - - /* If transitioning to allow "search", reset all history - * bitmaps and stats in active table (this will become the new - * "search" table). */ - if (!lq_sta->stay_in_tbl) { - for (i = 0; i < IWL_RATE_COUNT; i++) - iwl4965_rs_rate_scale_clear_window( - &(tbl->win[i])); - } - } -} - -/* - * setup rate table in uCode - * return rate_n_flags as used in the table - */ -static u32 iwl4965_rs_update_rate_tbl(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct iwl_lq_sta *lq_sta, - struct iwl_scale_tbl_info *tbl, - int index, u8 is_green) -{ - u32 rate; - - /* Update uCode's rate table. */ - rate = iwl4965_rate_n_flags_from_tbl(priv, tbl, index, is_green); - iwl4965_rs_fill_link_cmd(priv, lq_sta, rate); - iwl_legacy_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false); - - return rate; -} - -/* - * Do rate scaling and search for new modulation mode. - */ -static void iwl4965_rs_rate_scale_perform(struct iwl_priv *priv, - struct sk_buff *skb, - struct ieee80211_sta *sta, - struct iwl_lq_sta *lq_sta) -{ - struct ieee80211_hw *hw = priv->hw; - struct ieee80211_conf *conf = &hw->conf; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - int low = IWL_RATE_INVALID; - int high = IWL_RATE_INVALID; - int index; - int i; - struct iwl_rate_scale_data *window = NULL; - int current_tpt = IWL_INVALID_VALUE; - int low_tpt = IWL_INVALID_VALUE; - int high_tpt = IWL_INVALID_VALUE; - u32 fail_count; - s8 scale_action = 0; - u16 rate_mask; - u8 update_lq = 0; - struct iwl_scale_tbl_info *tbl, *tbl1; - u16 rate_scale_index_msk = 0; - u32 rate; - u8 is_green = 0; - u8 active_tbl = 0; - u8 done_search = 0; - u16 high_low; - s32 sr; - u8 tid = MAX_TID_COUNT; - struct iwl_tid_data *tid_data; - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - - IWL_DEBUG_RATE(priv, "rate scale calculate new rate for skb\n"); - - /* Send management frames and NO_ACK data using lowest rate. */ - /* TODO: this could probably be improved.. */ - if (!ieee80211_is_data(hdr->frame_control) || - info->flags & IEEE80211_TX_CTL_NO_ACK) - return; - - if (!sta || !lq_sta) - return; - - lq_sta->supp_rates = sta->supp_rates[lq_sta->band]; - - tid = iwl4965_rs_tl_add_packet(lq_sta, hdr); - if ((tid != MAX_TID_COUNT) && (lq_sta->tx_agg_tid_en & (1 << tid))) { - tid_data = &priv->stations[lq_sta->lq.sta_id].tid[tid]; - if (tid_data->agg.state == IWL_AGG_OFF) - lq_sta->is_agg = 0; - else - lq_sta->is_agg = 1; - } else - lq_sta->is_agg = 0; - - /* - * Select rate-scale / modulation-mode table to work with in - * the rest of this function: "search" if searching for better - * modulation mode, or "active" if doing rate scaling within a mode. - */ - if (!lq_sta->search_better_tbl) - active_tbl = lq_sta->active_tbl; - else - active_tbl = 1 - lq_sta->active_tbl; - - tbl = &(lq_sta->lq_info[active_tbl]); - if (is_legacy(tbl->lq_type)) - lq_sta->is_green = 0; - else - lq_sta->is_green = iwl4965_rs_use_green(sta); - is_green = lq_sta->is_green; - - /* current tx rate */ - index = lq_sta->last_txrate_idx; - - IWL_DEBUG_RATE(priv, "Rate scale index %d for type %d\n", index, - tbl->lq_type); - - /* rates available for this association, and for modulation mode */ - rate_mask = iwl4965_rs_get_supported_rates(lq_sta, hdr, tbl->lq_type); - - IWL_DEBUG_RATE(priv, "mask 0x%04X\n", rate_mask); - - /* mask with station rate restriction */ - if (is_legacy(tbl->lq_type)) { - if (lq_sta->band == IEEE80211_BAND_5GHZ) - /* supp_rates has no CCK bits in A mode */ - rate_scale_index_msk = (u16) (rate_mask & - (lq_sta->supp_rates << IWL_FIRST_OFDM_RATE)); - else - rate_scale_index_msk = (u16) (rate_mask & - lq_sta->supp_rates); - - } else - rate_scale_index_msk = rate_mask; - - if (!rate_scale_index_msk) - rate_scale_index_msk = rate_mask; - - if (!((1 << index) & rate_scale_index_msk)) { - IWL_ERR(priv, "Current Rate is not valid\n"); - if (lq_sta->search_better_tbl) { - /* revert to active table if search table is not valid*/ - tbl->lq_type = LQ_NONE; - lq_sta->search_better_tbl = 0; - tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - /* get "active" rate info */ - index = iwl4965_hwrate_to_plcp_idx(tbl->current_rate); - rate = iwl4965_rs_update_rate_tbl(priv, ctx, lq_sta, - tbl, index, is_green); - } - return; - } - - /* Get expected throughput table and history window for current rate */ - if (!tbl->expected_tpt) { - IWL_ERR(priv, "tbl->expected_tpt is NULL\n"); - return; - } - - /* force user max rate if set by user */ - if ((lq_sta->max_rate_idx != -1) && - (lq_sta->max_rate_idx < index)) { - index = lq_sta->max_rate_idx; - update_lq = 1; - window = &(tbl->win[index]); - goto lq_update; - } - - window = &(tbl->win[index]); - - /* - * If there is not enough history to calculate actual average - * throughput, keep analyzing results of more tx frames, without - * changing rate or mode (bypass most of the rest of this function). - * Set up new rate table in uCode only if old rate is not supported - * in current association (use new rate found above). - */ - fail_count = window->counter - window->success_counter; - if ((fail_count < IWL_RATE_MIN_FAILURE_TH) && - (window->success_counter < IWL_RATE_MIN_SUCCESS_TH)) { - IWL_DEBUG_RATE(priv, "LQ: still below TH. succ=%d total=%d " - "for index %d\n", - window->success_counter, window->counter, index); - - /* Can't calculate this yet; not enough history */ - window->average_tpt = IWL_INVALID_VALUE; - - /* Should we stay with this modulation mode, - * or search for a new one? */ - iwl4965_rs_stay_in_table(lq_sta, false); - - goto out; - } - /* Else we have enough samples; calculate estimate of - * actual average throughput */ - if (window->average_tpt != ((window->success_ratio * - tbl->expected_tpt[index] + 64) / 128)) { - IWL_ERR(priv, - "expected_tpt should have been calculated by now\n"); - window->average_tpt = ((window->success_ratio * - tbl->expected_tpt[index] + 64) / 128); - } - - /* If we are searching for better modulation mode, check success. */ - if (lq_sta->search_better_tbl) { - /* If good success, continue using the "search" mode; - * no need to send new link quality command, since we're - * continuing to use the setup that we've been trying. */ - if (window->average_tpt > lq_sta->last_tpt) { - - IWL_DEBUG_RATE(priv, "LQ: SWITCHING TO NEW TABLE " - "suc=%d cur-tpt=%d old-tpt=%d\n", - window->success_ratio, - window->average_tpt, - lq_sta->last_tpt); - - if (!is_legacy(tbl->lq_type)) - lq_sta->enable_counter = 1; - - /* Swap tables; "search" becomes "active" */ - lq_sta->active_tbl = active_tbl; - current_tpt = window->average_tpt; - - /* Else poor success; go back to mode in "active" table */ - } else { - - IWL_DEBUG_RATE(priv, "LQ: GOING BACK TO THE OLD TABLE " - "suc=%d cur-tpt=%d old-tpt=%d\n", - window->success_ratio, - window->average_tpt, - lq_sta->last_tpt); - - /* Nullify "search" table */ - tbl->lq_type = LQ_NONE; - - /* Revert to "active" table */ - active_tbl = lq_sta->active_tbl; - tbl = &(lq_sta->lq_info[active_tbl]); - - /* Revert to "active" rate and throughput info */ - index = iwl4965_hwrate_to_plcp_idx(tbl->current_rate); - current_tpt = lq_sta->last_tpt; - - /* Need to set up a new rate table in uCode */ - update_lq = 1; - } - - /* Either way, we've made a decision; modulation mode - * search is done, allow rate adjustment next time. */ - lq_sta->search_better_tbl = 0; - done_search = 1; /* Don't switch modes below! */ - goto lq_update; - } - - /* (Else) not in search of better modulation mode, try for better - * starting rate, while staying in this mode. */ - high_low = iwl4965_rs_get_adjacent_rate(priv, index, - rate_scale_index_msk, - tbl->lq_type); - low = high_low & 0xff; - high = (high_low >> 8) & 0xff; - - /* If user set max rate, dont allow higher than user constrain */ - if ((lq_sta->max_rate_idx != -1) && - (lq_sta->max_rate_idx < high)) - high = IWL_RATE_INVALID; - - sr = window->success_ratio; - - /* Collect measured throughputs for current and adjacent rates */ - current_tpt = window->average_tpt; - if (low != IWL_RATE_INVALID) - low_tpt = tbl->win[low].average_tpt; - if (high != IWL_RATE_INVALID) - high_tpt = tbl->win[high].average_tpt; - - scale_action = 0; - - /* Too many failures, decrease rate */ - if ((sr <= IWL_RATE_DECREASE_TH) || (current_tpt == 0)) { - IWL_DEBUG_RATE(priv, - "decrease rate because of low success_ratio\n"); - scale_action = -1; - - /* No throughput measured yet for adjacent rates; try increase. */ - } else if ((low_tpt == IWL_INVALID_VALUE) && - (high_tpt == IWL_INVALID_VALUE)) { - - if (high != IWL_RATE_INVALID && sr >= IWL_RATE_INCREASE_TH) - scale_action = 1; - else if (low != IWL_RATE_INVALID) - scale_action = 0; - } - - /* Both adjacent throughputs are measured, but neither one has better - * throughput; we're using the best rate, don't change it! */ - else if ((low_tpt != IWL_INVALID_VALUE) && - (high_tpt != IWL_INVALID_VALUE) && - (low_tpt < current_tpt) && - (high_tpt < current_tpt)) - scale_action = 0; - - /* At least one adjacent rate's throughput is measured, - * and may have better performance. */ - else { - /* Higher adjacent rate's throughput is measured */ - if (high_tpt != IWL_INVALID_VALUE) { - /* Higher rate has better throughput */ - if (high_tpt > current_tpt && - sr >= IWL_RATE_INCREASE_TH) { - scale_action = 1; - } else { - scale_action = 0; - } - - /* Lower adjacent rate's throughput is measured */ - } else if (low_tpt != IWL_INVALID_VALUE) { - /* Lower rate has better throughput */ - if (low_tpt > current_tpt) { - IWL_DEBUG_RATE(priv, - "decrease rate because of low tpt\n"); - scale_action = -1; - } else if (sr >= IWL_RATE_INCREASE_TH) { - scale_action = 1; - } - } - } - - /* Sanity check; asked for decrease, but success rate or throughput - * has been good at old rate. Don't change it. */ - if ((scale_action == -1) && (low != IWL_RATE_INVALID) && - ((sr > IWL_RATE_HIGH_TH) || - (current_tpt > (100 * tbl->expected_tpt[low])))) - scale_action = 0; - - switch (scale_action) { - case -1: - /* Decrease starting rate, update uCode's rate table */ - if (low != IWL_RATE_INVALID) { - update_lq = 1; - index = low; - } - - break; - case 1: - /* Increase starting rate, update uCode's rate table */ - if (high != IWL_RATE_INVALID) { - update_lq = 1; - index = high; - } - - break; - case 0: - /* No change */ - default: - break; - } - - IWL_DEBUG_RATE(priv, "choose rate scale index %d action %d low %d " - "high %d type %d\n", - index, scale_action, low, high, tbl->lq_type); - -lq_update: - /* Replace uCode's rate table for the destination station. */ - if (update_lq) - rate = iwl4965_rs_update_rate_tbl(priv, ctx, lq_sta, - tbl, index, is_green); - - /* Should we stay with this modulation mode, - * or search for a new one? */ - iwl4965_rs_stay_in_table(lq_sta, false); - - /* - * Search for new modulation mode if we're: - * 1) Not changing rates right now - * 2) Not just finishing up a search - * 3) Allowing a new search - */ - if (!update_lq && !done_search && - !lq_sta->stay_in_tbl && window->counter) { - /* Save current throughput to compare with "search" throughput*/ - lq_sta->last_tpt = current_tpt; - - /* Select a new "search" modulation mode to try. - * If one is found, set up the new "search" table. */ - if (is_legacy(tbl->lq_type)) - iwl4965_rs_move_legacy_other(priv, lq_sta, - conf, sta, index); - else if (is_siso(tbl->lq_type)) - iwl4965_rs_move_siso_to_other(priv, lq_sta, - conf, sta, index); - else /* (is_mimo2(tbl->lq_type)) */ - iwl4965_rs_move_mimo2_to_other(priv, lq_sta, - conf, sta, index); - - /* If new "search" mode was selected, set up in uCode table */ - if (lq_sta->search_better_tbl) { - /* Access the "search" table, clear its history. */ - tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - for (i = 0; i < IWL_RATE_COUNT; i++) - iwl4965_rs_rate_scale_clear_window( - &(tbl->win[i])); - - /* Use new "search" start rate */ - index = iwl4965_hwrate_to_plcp_idx(tbl->current_rate); - - IWL_DEBUG_RATE(priv, - "Switch current mcs: %X index: %d\n", - tbl->current_rate, index); - iwl4965_rs_fill_link_cmd(priv, lq_sta, - tbl->current_rate); - iwl_legacy_send_lq_cmd(priv, ctx, - &lq_sta->lq, CMD_ASYNC, false); - } else - done_search = 1; - } - - if (done_search && !lq_sta->stay_in_tbl) { - /* If the "active" (non-search) mode was legacy, - * and we've tried switching antennas, - * but we haven't been able to try HT modes (not available), - * stay with best antenna legacy modulation for a while - * before next round of mode comparisons. */ - tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]); - if (is_legacy(tbl1->lq_type) && !conf_is_ht(conf) && - lq_sta->action_counter > tbl1->max_search) { - IWL_DEBUG_RATE(priv, "LQ: STAY in legacy table\n"); - iwl4965_rs_set_stay_in_table(priv, 1, lq_sta); - } - - /* If we're in an HT mode, and all 3 mode switch actions - * have been tried and compared, stay in this best modulation - * mode for a while before next round of mode comparisons. */ - if (lq_sta->enable_counter && - (lq_sta->action_counter >= tbl1->max_search)) { - if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) && - (lq_sta->tx_agg_tid_en & (1 << tid)) && - (tid != MAX_TID_COUNT)) { - tid_data = - &priv->stations[lq_sta->lq.sta_id].tid[tid]; - if (tid_data->agg.state == IWL_AGG_OFF) { - IWL_DEBUG_RATE(priv, - "try to aggregate tid %d\n", - tid); - iwl4965_rs_tl_turn_on_agg(priv, tid, - lq_sta, sta); - } - } - iwl4965_rs_set_stay_in_table(priv, 0, lq_sta); - } - } - -out: - tbl->current_rate = iwl4965_rate_n_flags_from_tbl(priv, tbl, - index, is_green); - i = index; - lq_sta->last_txrate_idx = i; -} - -/** - * iwl4965_rs_initialize_lq - Initialize a station's hardware rate table - * - * The uCode's station table contains a table of fallback rates - * for automatic fallback during transmission. - * - * NOTE: This sets up a default set of values. These will be replaced later - * if the driver's iwl-4965-rs rate scaling algorithm is used, instead of - * rc80211_simple. - * - * NOTE: Run REPLY_ADD_STA command to set up station table entry, before - * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD, - * which requires station table entry to exist). - */ -static void iwl4965_rs_initialize_lq(struct iwl_priv *priv, - struct ieee80211_conf *conf, - struct ieee80211_sta *sta, - struct iwl_lq_sta *lq_sta) -{ - struct iwl_scale_tbl_info *tbl; - int rate_idx; - int i; - u32 rate; - u8 use_green = iwl4965_rs_use_green(sta); - u8 active_tbl = 0; - u8 valid_tx_ant; - struct iwl_station_priv *sta_priv; - struct iwl_rxon_context *ctx; - - if (!sta || !lq_sta) - return; - - sta_priv = (void *)sta->drv_priv; - ctx = sta_priv->common.ctx; - - i = lq_sta->last_txrate_idx; - - valid_tx_ant = priv->hw_params.valid_tx_ant; - - if (!lq_sta->search_better_tbl) - active_tbl = lq_sta->active_tbl; - else - active_tbl = 1 - lq_sta->active_tbl; - - tbl = &(lq_sta->lq_info[active_tbl]); - - if ((i < 0) || (i >= IWL_RATE_COUNT)) - i = 0; - - rate = iwlegacy_rates[i].plcp; - tbl->ant_type = iwl4965_first_antenna(valid_tx_ant); - rate |= tbl->ant_type << RATE_MCS_ANT_POS; - - if (i >= IWL_FIRST_CCK_RATE && i <= IWL_LAST_CCK_RATE) - rate |= RATE_MCS_CCK_MSK; - - iwl4965_rs_get_tbl_info_from_mcs(rate, priv->band, tbl, &rate_idx); - if (!iwl4965_rs_is_valid_ant(valid_tx_ant, tbl->ant_type)) - iwl4965_rs_toggle_antenna(valid_tx_ant, &rate, tbl); - - rate = iwl4965_rate_n_flags_from_tbl(priv, tbl, rate_idx, use_green); - tbl->current_rate = rate; - iwl4965_rs_set_expected_tpt_table(lq_sta, tbl); - iwl4965_rs_fill_link_cmd(NULL, lq_sta, rate); - priv->stations[lq_sta->lq.sta_id].lq = &lq_sta->lq; - iwl_legacy_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_SYNC, true); -} - -static void -iwl4965_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta, - struct ieee80211_tx_rate_control *txrc) -{ - - struct sk_buff *skb = txrc->skb; - struct ieee80211_supported_band *sband = txrc->sband; - struct iwl_priv *priv __maybe_unused = (struct iwl_priv *)priv_r; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct iwl_lq_sta *lq_sta = priv_sta; - int rate_idx; - - IWL_DEBUG_RATE_LIMIT(priv, "rate scale calculate new rate for skb\n"); - - /* Get max rate if user set max rate */ - if (lq_sta) { - lq_sta->max_rate_idx = txrc->max_rate_idx; - if ((sband->band == IEEE80211_BAND_5GHZ) && - (lq_sta->max_rate_idx != -1)) - lq_sta->max_rate_idx += IWL_FIRST_OFDM_RATE; - if ((lq_sta->max_rate_idx < 0) || - (lq_sta->max_rate_idx >= IWL_RATE_COUNT)) - lq_sta->max_rate_idx = -1; - } - - /* Treat uninitialized rate scaling data same as non-existing. */ - if (lq_sta && !lq_sta->drv) { - IWL_DEBUG_RATE(priv, "Rate scaling not initialized yet.\n"); - priv_sta = NULL; - } - - /* Send management frames and NO_ACK data using lowest rate. */ - if (rate_control_send_low(sta, priv_sta, txrc)) - return; - - if (!lq_sta) - return; - - rate_idx = lq_sta->last_txrate_idx; - - if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) { - rate_idx -= IWL_FIRST_OFDM_RATE; - /* 6M and 9M shared same MCS index */ - rate_idx = (rate_idx > 0) ? (rate_idx - 1) : 0; - if (iwl4965_rs_extract_rate(lq_sta->last_rate_n_flags) >= - IWL_RATE_MIMO2_6M_PLCP) - rate_idx = rate_idx + MCS_INDEX_PER_STREAM; - info->control.rates[0].flags = IEEE80211_TX_RC_MCS; - if (lq_sta->last_rate_n_flags & RATE_MCS_SGI_MSK) - info->control.rates[0].flags |= - IEEE80211_TX_RC_SHORT_GI; - if (lq_sta->last_rate_n_flags & RATE_MCS_DUP_MSK) - info->control.rates[0].flags |= - IEEE80211_TX_RC_DUP_DATA; - if (lq_sta->last_rate_n_flags & RATE_MCS_HT40_MSK) - info->control.rates[0].flags |= - IEEE80211_TX_RC_40_MHZ_WIDTH; - if (lq_sta->last_rate_n_flags & RATE_MCS_GF_MSK) - info->control.rates[0].flags |= - IEEE80211_TX_RC_GREEN_FIELD; - } else { - /* Check for invalid rates */ - if ((rate_idx < 0) || (rate_idx >= IWL_RATE_COUNT_LEGACY) || - ((sband->band == IEEE80211_BAND_5GHZ) && - (rate_idx < IWL_FIRST_OFDM_RATE))) - rate_idx = rate_lowest_index(sband, sta); - /* On valid 5 GHz rate, adjust index */ - else if (sband->band == IEEE80211_BAND_5GHZ) - rate_idx -= IWL_FIRST_OFDM_RATE; - info->control.rates[0].flags = 0; - } - info->control.rates[0].idx = rate_idx; - -} - -static void *iwl4965_rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta, - gfp_t gfp) -{ - struct iwl_lq_sta *lq_sta; - struct iwl_station_priv *sta_priv = - (struct iwl_station_priv *) sta->drv_priv; - struct iwl_priv *priv; - - priv = (struct iwl_priv *)priv_rate; - IWL_DEBUG_RATE(priv, "create station rate scale window\n"); - - lq_sta = &sta_priv->lq_sta; - - return lq_sta; -} - -/* - * Called after adding a new station to initialize rate scaling - */ -void -iwl4965_rs_rate_init(struct iwl_priv *priv, - struct ieee80211_sta *sta, - u8 sta_id) -{ - int i, j; - struct ieee80211_hw *hw = priv->hw; - struct ieee80211_conf *conf = &priv->hw->conf; - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; - struct iwl_station_priv *sta_priv; - struct iwl_lq_sta *lq_sta; - struct ieee80211_supported_band *sband; - - sta_priv = (struct iwl_station_priv *) sta->drv_priv; - lq_sta = &sta_priv->lq_sta; - sband = hw->wiphy->bands[conf->channel->band]; - - - lq_sta->lq.sta_id = sta_id; - - for (j = 0; j < LQ_SIZE; j++) - for (i = 0; i < IWL_RATE_COUNT; i++) - iwl4965_rs_rate_scale_clear_window( - &lq_sta->lq_info[j].win[i]); - - lq_sta->flush_timer = 0; - lq_sta->supp_rates = sta->supp_rates[sband->band]; - for (j = 0; j < LQ_SIZE; j++) - for (i = 0; i < IWL_RATE_COUNT; i++) - iwl4965_rs_rate_scale_clear_window( - &lq_sta->lq_info[j].win[i]); - - IWL_DEBUG_RATE(priv, "LQ:" - "*** rate scale station global init for station %d ***\n", - sta_id); - /* TODO: what is a good starting rate for STA? About middle? Maybe not - * the lowest or the highest rate.. Could consider using RSSI from - * previous packets? Need to have IEEE 802.1X auth succeed immediately - * after assoc.. */ - - lq_sta->is_dup = 0; - lq_sta->max_rate_idx = -1; - lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX; - lq_sta->is_green = iwl4965_rs_use_green(sta); - lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000); - lq_sta->band = priv->band; - /* - * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3), - * supp_rates[] does not; shift to convert format, force 9 MBits off. - */ - lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1; - lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1; - lq_sta->active_siso_rate &= ~((u16)0x2); - lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE; - - /* Same here */ - lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1; - lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1; - lq_sta->active_mimo2_rate &= ~((u16)0x2); - lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE; - - /* These values will be overridden later */ - lq_sta->lq.general_params.single_stream_ant_msk = - iwl4965_first_antenna(priv->hw_params.valid_tx_ant); - lq_sta->lq.general_params.dual_stream_ant_msk = - priv->hw_params.valid_tx_ant & - ~iwl4965_first_antenna(priv->hw_params.valid_tx_ant); - if (!lq_sta->lq.general_params.dual_stream_ant_msk) { - lq_sta->lq.general_params.dual_stream_ant_msk = ANT_AB; - } else if (iwl4965_num_of_ant(priv->hw_params.valid_tx_ant) == 2) { - lq_sta->lq.general_params.dual_stream_ant_msk = - priv->hw_params.valid_tx_ant; - } - - /* as default allow aggregation for all tids */ - lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID; - lq_sta->drv = priv; - - /* Set last_txrate_idx to lowest rate */ - lq_sta->last_txrate_idx = rate_lowest_index(sband, sta); - if (sband->band == IEEE80211_BAND_5GHZ) - lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE; - lq_sta->is_agg = 0; - -#ifdef CONFIG_MAC80211_DEBUGFS - lq_sta->dbg_fixed_rate = 0; -#endif - - iwl4965_rs_initialize_lq(priv, conf, sta, lq_sta); -} - -static void iwl4965_rs_fill_link_cmd(struct iwl_priv *priv, - struct iwl_lq_sta *lq_sta, u32 new_rate) -{ - struct iwl_scale_tbl_info tbl_type; - int index = 0; - int rate_idx; - int repeat_rate = 0; - u8 ant_toggle_cnt = 0; - u8 use_ht_possible = 1; - u8 valid_tx_ant = 0; - struct iwl_link_quality_cmd *lq_cmd = &lq_sta->lq; - - /* Override starting rate (index 0) if needed for debug purposes */ - iwl4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, index); - - /* Interpret new_rate (rate_n_flags) */ - iwl4965_rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, - &tbl_type, &rate_idx); - - /* How many times should we repeat the initial rate? */ - if (is_legacy(tbl_type.lq_type)) { - ant_toggle_cnt = 1; - repeat_rate = IWL_NUMBER_TRY; - } else { - repeat_rate = IWL_HT_NUMBER_TRY; - } - - lq_cmd->general_params.mimo_delimiter = - is_mimo(tbl_type.lq_type) ? 1 : 0; - - /* Fill 1st table entry (index 0) */ - lq_cmd->rs_table[index].rate_n_flags = cpu_to_le32(new_rate); - - if (iwl4965_num_of_ant(tbl_type.ant_type) == 1) { - lq_cmd->general_params.single_stream_ant_msk = - tbl_type.ant_type; - } else if (iwl4965_num_of_ant(tbl_type.ant_type) == 2) { - lq_cmd->general_params.dual_stream_ant_msk = - tbl_type.ant_type; - } /* otherwise we don't modify the existing value */ - - index++; - repeat_rate--; - if (priv) - valid_tx_ant = priv->hw_params.valid_tx_ant; - - /* Fill rest of rate table */ - while (index < LINK_QUAL_MAX_RETRY_NUM) { - /* Repeat initial/next rate. - * For legacy IWL_NUMBER_TRY == 1, this loop will not execute. - * For HT IWL_HT_NUMBER_TRY == 3, this executes twice. */ - while (repeat_rate > 0 && (index < LINK_QUAL_MAX_RETRY_NUM)) { - if (is_legacy(tbl_type.lq_type)) { - if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE) - ant_toggle_cnt++; - else if (priv && - iwl4965_rs_toggle_antenna(valid_tx_ant, - &new_rate, &tbl_type)) - ant_toggle_cnt = 1; - } - - /* Override next rate if needed for debug purposes */ - iwl4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, index); - - /* Fill next table entry */ - lq_cmd->rs_table[index].rate_n_flags = - cpu_to_le32(new_rate); - repeat_rate--; - index++; - } - - iwl4965_rs_get_tbl_info_from_mcs(new_rate, - lq_sta->band, &tbl_type, - &rate_idx); - - /* Indicate to uCode which entries might be MIMO. - * If initial rate was MIMO, this will finally end up - * as (IWL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */ - if (is_mimo(tbl_type.lq_type)) - lq_cmd->general_params.mimo_delimiter = index; - - /* Get next rate */ - new_rate = iwl4965_rs_get_lower_rate(lq_sta, - &tbl_type, rate_idx, - use_ht_possible); - - /* How many times should we repeat the next rate? */ - if (is_legacy(tbl_type.lq_type)) { - if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE) - ant_toggle_cnt++; - else if (priv && - iwl4965_rs_toggle_antenna(valid_tx_ant, - &new_rate, &tbl_type)) - ant_toggle_cnt = 1; - - repeat_rate = IWL_NUMBER_TRY; - } else { - repeat_rate = IWL_HT_NUMBER_TRY; - } - - /* Don't allow HT rates after next pass. - * iwl4965_rs_get_lower_rate() will change type to LQ_A or LQ_G. */ - use_ht_possible = 0; - - /* Override next rate if needed for debug purposes */ - iwl4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, index); - - /* Fill next table entry */ - lq_cmd->rs_table[index].rate_n_flags = cpu_to_le32(new_rate); - - index++; - repeat_rate--; - } - - lq_cmd->agg_params.agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF; - lq_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; - - lq_cmd->agg_params.agg_time_limit = - cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); -} - -static void -*iwl4965_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) -{ - return hw->priv; -} -/* rate scale requires free function to be implemented */ -static void iwl4965_rs_free(void *priv_rate) -{ - return; -} - -static void iwl4965_rs_free_sta(void *priv_r, struct ieee80211_sta *sta, - void *priv_sta) -{ - struct iwl_priv *priv __maybe_unused = priv_r; - - IWL_DEBUG_RATE(priv, "enter\n"); - IWL_DEBUG_RATE(priv, "leave\n"); -} - - -#ifdef CONFIG_MAC80211_DEBUGFS -static int iwl4965_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} -static void iwl4965_rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, - u32 *rate_n_flags, int index) -{ - struct iwl_priv *priv; - u8 valid_tx_ant; - u8 ant_sel_tx; - - priv = lq_sta->drv; - valid_tx_ant = priv->hw_params.valid_tx_ant; - if (lq_sta->dbg_fixed_rate) { - ant_sel_tx = - ((lq_sta->dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK) - >> RATE_MCS_ANT_POS); - if ((valid_tx_ant & ant_sel_tx) == ant_sel_tx) { - *rate_n_flags = lq_sta->dbg_fixed_rate; - IWL_DEBUG_RATE(priv, "Fixed rate ON\n"); - } else { - lq_sta->dbg_fixed_rate = 0; - IWL_ERR(priv, - "Invalid antenna selection 0x%X, Valid is 0x%X\n", - ant_sel_tx, valid_tx_ant); - IWL_DEBUG_RATE(priv, "Fixed rate OFF\n"); - } - } else { - IWL_DEBUG_RATE(priv, "Fixed rate OFF\n"); - } -} - -static ssize_t iwl4965_rs_sta_dbgfs_scale_table_write(struct file *file, - const char __user *user_buf, size_t count, loff_t *ppos) -{ - struct iwl_lq_sta *lq_sta = file->private_data; - struct iwl_priv *priv; - char buf[64]; - size_t buf_size; - u32 parsed_rate; - struct iwl_station_priv *sta_priv = - container_of(lq_sta, struct iwl_station_priv, lq_sta); - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - - priv = lq_sta->drv; - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - - if (sscanf(buf, "%x", &parsed_rate) == 1) - lq_sta->dbg_fixed_rate = parsed_rate; - else - lq_sta->dbg_fixed_rate = 0; - - lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */ - lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ - lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ - - IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n", - lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate); - - if (lq_sta->dbg_fixed_rate) { - iwl4965_rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate); - iwl_legacy_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC, - false); - } - - return count; -} - -static ssize_t iwl4965_rs_sta_dbgfs_scale_table_read(struct file *file, - char __user *user_buf, size_t count, loff_t *ppos) -{ - char *buff; - int desc = 0; - int i = 0; - int index = 0; - ssize_t ret; - - struct iwl_lq_sta *lq_sta = file->private_data; - struct iwl_priv *priv; - struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - - priv = lq_sta->drv; - buff = kmalloc(1024, GFP_KERNEL); - if (!buff) - return -ENOMEM; - - desc += sprintf(buff+desc, "sta_id %d\n", lq_sta->lq.sta_id); - desc += sprintf(buff+desc, "failed=%d success=%d rate=0%X\n", - lq_sta->total_failed, lq_sta->total_success, - lq_sta->active_legacy_rate); - desc += sprintf(buff+desc, "fixed rate 0x%X\n", - lq_sta->dbg_fixed_rate); - desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n", - (priv->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "", - (priv->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "", - (priv->hw_params.valid_tx_ant & ANT_C) ? "ANT_C" : ""); - desc += sprintf(buff+desc, "lq type %s\n", - (is_legacy(tbl->lq_type)) ? "legacy" : "HT"); - if (is_Ht(tbl->lq_type)) { - desc += sprintf(buff+desc, " %s", - (is_siso(tbl->lq_type)) ? "SISO" : "MIMO2"); - desc += sprintf(buff+desc, " %s", - (tbl->is_ht40) ? "40MHz" : "20MHz"); - desc += sprintf(buff+desc, " %s %s %s\n", - (tbl->is_SGI) ? "SGI" : "", - (lq_sta->is_green) ? "GF enabled" : "", - (lq_sta->is_agg) ? "AGG on" : ""); - } - desc += sprintf(buff+desc, "last tx rate=0x%X\n", - lq_sta->last_rate_n_flags); - desc += sprintf(buff+desc, "general:" - "flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n", - lq_sta->lq.general_params.flags, - lq_sta->lq.general_params.mimo_delimiter, - lq_sta->lq.general_params.single_stream_ant_msk, - lq_sta->lq.general_params.dual_stream_ant_msk); - - desc += sprintf(buff+desc, "agg:" - "time_limit=%d dist_start_th=%d frame_cnt_limit=%d\n", - le16_to_cpu(lq_sta->lq.agg_params.agg_time_limit), - lq_sta->lq.agg_params.agg_dis_start_th, - lq_sta->lq.agg_params.agg_frame_cnt_limit); - - desc += sprintf(buff+desc, - "Start idx [0]=0x%x [1]=0x%x [2]=0x%x [3]=0x%x\n", - lq_sta->lq.general_params.start_rate_index[0], - lq_sta->lq.general_params.start_rate_index[1], - lq_sta->lq.general_params.start_rate_index[2], - lq_sta->lq.general_params.start_rate_index[3]); - - for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { - index = iwl4965_hwrate_to_plcp_idx( - le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags)); - if (is_legacy(tbl->lq_type)) { - desc += sprintf(buff+desc, " rate[%d] 0x%X %smbps\n", - i, - le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags), - iwl_rate_mcs[index].mbps); - } else { - desc += sprintf(buff+desc, - " rate[%d] 0x%X %smbps (%s)\n", - i, - le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags), - iwl_rate_mcs[index].mbps, iwl_rate_mcs[index].mcs); - } - } - - ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); - kfree(buff); - return ret; -} - -static const struct file_operations rs_sta_dbgfs_scale_table_ops = { - .write = iwl4965_rs_sta_dbgfs_scale_table_write, - .read = iwl4965_rs_sta_dbgfs_scale_table_read, - .open = iwl4965_open_file_generic, - .llseek = default_llseek, -}; -static ssize_t iwl4965_rs_sta_dbgfs_stats_table_read(struct file *file, - char __user *user_buf, size_t count, loff_t *ppos) -{ - char *buff; - int desc = 0; - int i, j; - ssize_t ret; - - struct iwl_lq_sta *lq_sta = file->private_data; - - buff = kmalloc(1024, GFP_KERNEL); - if (!buff) - return -ENOMEM; - - for (i = 0; i < LQ_SIZE; i++) { - desc += sprintf(buff+desc, - "%s type=%d SGI=%d HT40=%d DUP=%d GF=%d\n" - "rate=0x%X\n", - lq_sta->active_tbl == i ? "*" : "x", - lq_sta->lq_info[i].lq_type, - lq_sta->lq_info[i].is_SGI, - lq_sta->lq_info[i].is_ht40, - lq_sta->lq_info[i].is_dup, - lq_sta->is_green, - lq_sta->lq_info[i].current_rate); - for (j = 0; j < IWL_RATE_COUNT; j++) { - desc += sprintf(buff+desc, - "counter=%d success=%d %%=%d\n", - lq_sta->lq_info[i].win[j].counter, - lq_sta->lq_info[i].win[j].success_counter, - lq_sta->lq_info[i].win[j].success_ratio); - } - } - ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); - kfree(buff); - return ret; -} - -static const struct file_operations rs_sta_dbgfs_stats_table_ops = { - .read = iwl4965_rs_sta_dbgfs_stats_table_read, - .open = iwl4965_open_file_generic, - .llseek = default_llseek, -}; - -static ssize_t iwl4965_rs_sta_dbgfs_rate_scale_data_read(struct file *file, - char __user *user_buf, size_t count, loff_t *ppos) -{ - char buff[120]; - int desc = 0; - ssize_t ret; - - struct iwl_lq_sta *lq_sta = file->private_data; - struct iwl_priv *priv; - struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl]; - - priv = lq_sta->drv; - - if (is_Ht(tbl->lq_type)) - desc += sprintf(buff+desc, - "Bit Rate= %d Mb/s\n", - tbl->expected_tpt[lq_sta->last_txrate_idx]); - else - desc += sprintf(buff+desc, - "Bit Rate= %d Mb/s\n", - iwlegacy_rates[lq_sta->last_txrate_idx].ieee >> 1); - - ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); - return ret; -} - -static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = { - .read = iwl4965_rs_sta_dbgfs_rate_scale_data_read, - .open = iwl4965_open_file_generic, - .llseek = default_llseek, -}; - -static void iwl4965_rs_add_debugfs(void *priv, void *priv_sta, - struct dentry *dir) -{ - struct iwl_lq_sta *lq_sta = priv_sta; - lq_sta->rs_sta_dbgfs_scale_table_file = - debugfs_create_file("rate_scale_table", S_IRUSR | S_IWUSR, dir, - lq_sta, &rs_sta_dbgfs_scale_table_ops); - lq_sta->rs_sta_dbgfs_stats_table_file = - debugfs_create_file("rate_stats_table", S_IRUSR, dir, - lq_sta, &rs_sta_dbgfs_stats_table_ops); - lq_sta->rs_sta_dbgfs_rate_scale_data_file = - debugfs_create_file("rate_scale_data", S_IRUSR, dir, - lq_sta, &rs_sta_dbgfs_rate_scale_data_ops); - lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file = - debugfs_create_u8("tx_agg_tid_enable", S_IRUSR | S_IWUSR, dir, - &lq_sta->tx_agg_tid_en); - -} - -static void iwl4965_rs_remove_debugfs(void *priv, void *priv_sta) -{ - struct iwl_lq_sta *lq_sta = priv_sta; - debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file); -} -#endif - -/* - * Initialization of rate scaling information is done by driver after - * the station is added. Since mac80211 calls this function before a - * station is added we ignore it. - */ -static void -iwl4965_rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta) -{ -} -static struct rate_control_ops rs_4965_ops = { - .module = NULL, - .name = IWL4965_RS_NAME, - .tx_status = iwl4965_rs_tx_status, - .get_rate = iwl4965_rs_get_rate, - .rate_init = iwl4965_rs_rate_init_stub, - .alloc = iwl4965_rs_alloc, - .free = iwl4965_rs_free, - .alloc_sta = iwl4965_rs_alloc_sta, - .free_sta = iwl4965_rs_free_sta, -#ifdef CONFIG_MAC80211_DEBUGFS - .add_sta_debugfs = iwl4965_rs_add_debugfs, - .remove_sta_debugfs = iwl4965_rs_remove_debugfs, -#endif -}; - -int iwl4965_rate_control_register(void) -{ - return ieee80211_rate_control_register(&rs_4965_ops); -} - -void iwl4965_rate_control_unregister(void) -{ - ieee80211_rate_control_unregister(&rs_4965_ops); -} diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-rx.c b/drivers/net/wireless/iwlegacy/iwl-4965-rx.c deleted file mode 100644 index 2b144bbfc3c5..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-rx.c +++ /dev/null @@ -1,215 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/sched.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-4965-calib.h" -#include "iwl-sta.h" -#include "iwl-io.h" -#include "iwl-helpers.h" -#include "iwl-4965-hw.h" -#include "iwl-4965.h" - -void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) - -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_missed_beacon_notif *missed_beacon; - - missed_beacon = &pkt->u.missed_beacon; - if (le32_to_cpu(missed_beacon->consecutive_missed_beacons) > - priv->missed_beacon_threshold) { - IWL_DEBUG_CALIB(priv, - "missed bcn cnsq %d totl %d rcd %d expctd %d\n", - le32_to_cpu(missed_beacon->consecutive_missed_beacons), - le32_to_cpu(missed_beacon->total_missed_becons), - le32_to_cpu(missed_beacon->num_recvd_beacons), - le32_to_cpu(missed_beacon->num_expected_beacons)); - if (!test_bit(STATUS_SCANNING, &priv->status)) - iwl4965_init_sensitivity(priv); - } -} - -/* Calculate noise level, based on measurements during network silence just - * before arriving beacon. This measurement can be done only if we know - * exactly when to expect beacons, therefore only when we're associated. */ -static void iwl4965_rx_calc_noise(struct iwl_priv *priv) -{ - struct statistics_rx_non_phy *rx_info; - int num_active_rx = 0; - int total_silence = 0; - int bcn_silence_a, bcn_silence_b, bcn_silence_c; - int last_rx_noise; - - rx_info = &(priv->_4965.statistics.rx.general); - bcn_silence_a = - le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER; - bcn_silence_b = - le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER; - bcn_silence_c = - le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER; - - if (bcn_silence_a) { - total_silence += bcn_silence_a; - num_active_rx++; - } - if (bcn_silence_b) { - total_silence += bcn_silence_b; - num_active_rx++; - } - if (bcn_silence_c) { - total_silence += bcn_silence_c; - num_active_rx++; - } - - /* Average among active antennas */ - if (num_active_rx) - last_rx_noise = (total_silence / num_active_rx) - 107; - else - last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE; - - IWL_DEBUG_CALIB(priv, "inband silence a %u, b %u, c %u, dBm %d\n", - bcn_silence_a, bcn_silence_b, bcn_silence_c, - last_rx_noise); -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS -/* - * based on the assumption of all statistics counter are in DWORD - * FIXME: This function is for debugging, do not deal with - * the case of counters roll-over. - */ -static void iwl4965_accumulative_statistics(struct iwl_priv *priv, - __le32 *stats) -{ - int i, size; - __le32 *prev_stats; - u32 *accum_stats; - u32 *delta, *max_delta; - struct statistics_general_common *general, *accum_general; - struct statistics_tx *tx, *accum_tx; - - prev_stats = (__le32 *)&priv->_4965.statistics; - accum_stats = (u32 *)&priv->_4965.accum_statistics; - size = sizeof(struct iwl_notif_statistics); - general = &priv->_4965.statistics.general.common; - accum_general = &priv->_4965.accum_statistics.general.common; - tx = &priv->_4965.statistics.tx; - accum_tx = &priv->_4965.accum_statistics.tx; - delta = (u32 *)&priv->_4965.delta_statistics; - max_delta = (u32 *)&priv->_4965.max_delta; - - for (i = sizeof(__le32); i < size; - i += sizeof(__le32), stats++, prev_stats++, delta++, - max_delta++, accum_stats++) { - if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) { - *delta = (le32_to_cpu(*stats) - - le32_to_cpu(*prev_stats)); - *accum_stats += *delta; - if (*delta > *max_delta) - *max_delta = *delta; - } - } - - /* reset accumulative statistics for "no-counter" type statistics */ - accum_general->temperature = general->temperature; - accum_general->ttl_timestamp = general->ttl_timestamp; -} -#endif - -#define REG_RECALIB_PERIOD (60) - -void iwl4965_rx_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - int change; - struct iwl_rx_packet *pkt = rxb_addr(rxb); - - IWL_DEBUG_RX(priv, - "Statistics notification received (%d vs %d).\n", - (int)sizeof(struct iwl_notif_statistics), - le32_to_cpu(pkt->len_n_flags) & - FH_RSCSR_FRAME_SIZE_MSK); - - change = ((priv->_4965.statistics.general.common.temperature != - pkt->u.stats.general.common.temperature) || - ((priv->_4965.statistics.flag & - STATISTICS_REPLY_FLG_HT40_MODE_MSK) != - (pkt->u.stats.flag & - STATISTICS_REPLY_FLG_HT40_MODE_MSK))); -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - iwl4965_accumulative_statistics(priv, (__le32 *)&pkt->u.stats); -#endif - - /* TODO: reading some of statistics is unneeded */ - memcpy(&priv->_4965.statistics, &pkt->u.stats, - sizeof(priv->_4965.statistics)); - - set_bit(STATUS_STATISTICS, &priv->status); - - /* Reschedule the statistics timer to occur in - * REG_RECALIB_PERIOD seconds to ensure we get a - * thermal update even if the uCode doesn't give - * us one */ - mod_timer(&priv->statistics_periodic, jiffies + - msecs_to_jiffies(REG_RECALIB_PERIOD * 1000)); - - if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) && - (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) { - iwl4965_rx_calc_noise(priv); - queue_work(priv->workqueue, &priv->run_time_calib_work); - } - if (priv->cfg->ops->lib->temp_ops.temperature && change) - priv->cfg->ops->lib->temp_ops.temperature(priv); -} - -void iwl4965_reply_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - - if (le32_to_cpu(pkt->u.stats.flag) & UCODE_STATISTICS_CLEAR_MSK) { -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - memset(&priv->_4965.accum_statistics, 0, - sizeof(struct iwl_notif_statistics)); - memset(&priv->_4965.delta_statistics, 0, - sizeof(struct iwl_notif_statistics)); - memset(&priv->_4965.max_delta, 0, - sizeof(struct iwl_notif_statistics)); -#endif - IWL_DEBUG_RX(priv, "Statistics have been cleared\n"); - } - iwl4965_rx_statistics(priv, rxb); -} diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c b/drivers/net/wireless/iwlegacy/iwl-4965-sta.c deleted file mode 100644 index a262c23553d2..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c +++ /dev/null @@ -1,721 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <net/mac80211.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-sta.h" -#include "iwl-4965.h" - -static struct iwl_link_quality_cmd * -iwl4965_sta_alloc_lq(struct iwl_priv *priv, u8 sta_id) -{ - int i, r; - struct iwl_link_quality_cmd *link_cmd; - u32 rate_flags = 0; - __le32 rate_n_flags; - - link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL); - if (!link_cmd) { - IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n"); - return NULL; - } - /* Set up the rate scaling to start at selected rate, fall back - * all the way down to 1M in IEEE order, and then spin on 1M */ - if (priv->band == IEEE80211_BAND_5GHZ) - r = IWL_RATE_6M_INDEX; - else - r = IWL_RATE_1M_INDEX; - - if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) - rate_flags |= RATE_MCS_CCK_MSK; - - rate_flags |= iwl4965_first_antenna(priv->hw_params.valid_tx_ant) << - RATE_MCS_ANT_POS; - rate_n_flags = iwl4965_hw_set_rate_n_flags(iwlegacy_rates[r].plcp, - rate_flags); - for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) - link_cmd->rs_table[i].rate_n_flags = rate_n_flags; - - link_cmd->general_params.single_stream_ant_msk = - iwl4965_first_antenna(priv->hw_params.valid_tx_ant); - - link_cmd->general_params.dual_stream_ant_msk = - priv->hw_params.valid_tx_ant & - ~iwl4965_first_antenna(priv->hw_params.valid_tx_ant); - if (!link_cmd->general_params.dual_stream_ant_msk) { - link_cmd->general_params.dual_stream_ant_msk = ANT_AB; - } else if (iwl4965_num_of_ant(priv->hw_params.valid_tx_ant) == 2) { - link_cmd->general_params.dual_stream_ant_msk = - priv->hw_params.valid_tx_ant; - } - - link_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; - link_cmd->agg_params.agg_time_limit = - cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); - - link_cmd->sta_id = sta_id; - - return link_cmd; -} - -/* - * iwl4965_add_bssid_station - Add the special IBSS BSSID station - * - * Function sleeps. - */ -int -iwl4965_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, - const u8 *addr, u8 *sta_id_r) -{ - int ret; - u8 sta_id; - struct iwl_link_quality_cmd *link_cmd; - unsigned long flags; - - if (sta_id_r) - *sta_id_r = IWL_INVALID_STATION; - - ret = iwl_legacy_add_station_common(priv, ctx, addr, 0, NULL, &sta_id); - if (ret) { - IWL_ERR(priv, "Unable to add station %pM\n", addr); - return ret; - } - - if (sta_id_r) - *sta_id_r = sta_id; - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].used |= IWL_STA_LOCAL; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - /* Set up default rate scaling table in device's station table */ - link_cmd = iwl4965_sta_alloc_lq(priv, sta_id); - if (!link_cmd) { - IWL_ERR(priv, - "Unable to initialize rate scaling for station %pM.\n", - addr); - return -ENOMEM; - } - - ret = iwl_legacy_send_lq_cmd(priv, ctx, link_cmd, CMD_SYNC, true); - if (ret) - IWL_ERR(priv, "Link quality command failed (%d)\n", ret); - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].lq = link_cmd; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return 0; -} - -static int iwl4965_static_wepkey_cmd(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - bool send_if_empty) -{ - int i, not_empty = 0; - u8 buff[sizeof(struct iwl_wep_cmd) + - sizeof(struct iwl_wep_key) * WEP_KEYS_MAX]; - struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff; - size_t cmd_size = sizeof(struct iwl_wep_cmd); - struct iwl_host_cmd cmd = { - .id = ctx->wep_key_cmd, - .data = wep_cmd, - .flags = CMD_SYNC, - }; - - might_sleep(); - - memset(wep_cmd, 0, cmd_size + - (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX)); - - for (i = 0; i < WEP_KEYS_MAX ; i++) { - wep_cmd->key[i].key_index = i; - if (ctx->wep_keys[i].key_size) { - wep_cmd->key[i].key_offset = i; - not_empty = 1; - } else { - wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET; - } - - wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size; - memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key, - ctx->wep_keys[i].key_size); - } - - wep_cmd->global_key_type = WEP_KEY_WEP_TYPE; - wep_cmd->num_keys = WEP_KEYS_MAX; - - cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX; - - cmd.len = cmd_size; - - if (not_empty || send_if_empty) - return iwl_legacy_send_cmd(priv, &cmd); - else - return 0; -} - -int iwl4965_restore_default_wep_keys(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - lockdep_assert_held(&priv->mutex); - - return iwl4965_static_wepkey_cmd(priv, ctx, false); -} - -int iwl4965_remove_default_wep_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf) -{ - int ret; - - lockdep_assert_held(&priv->mutex); - - IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n", - keyconf->keyidx); - - memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0])); - if (iwl_legacy_is_rfkill(priv)) { - IWL_DEBUG_WEP(priv, - "Not sending REPLY_WEPKEY command due to RFKILL.\n"); - /* but keys in device are clear anyway so return success */ - return 0; - } - ret = iwl4965_static_wepkey_cmd(priv, ctx, 1); - IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n", - keyconf->keyidx, ret); - - return ret; -} - -int iwl4965_set_default_wep_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf) -{ - int ret; - - lockdep_assert_held(&priv->mutex); - - if (keyconf->keylen != WEP_KEY_LEN_128 && - keyconf->keylen != WEP_KEY_LEN_64) { - IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen); - return -EINVAL; - } - - keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; - keyconf->hw_key_idx = HW_KEY_DEFAULT; - priv->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher; - - ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; - memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key, - keyconf->keylen); - - ret = iwl4965_static_wepkey_cmd(priv, ctx, false); - IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n", - keyconf->keylen, keyconf->keyidx, ret); - - return ret; -} - -static int iwl4965_set_wep_dynamic_key_info(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - unsigned long flags; - __le16 key_flags = 0; - struct iwl_legacy_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; - - key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK); - key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); - key_flags &= ~STA_KEY_FLG_INVALID; - - if (keyconf->keylen == WEP_KEY_LEN_128) - key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; - - if (sta_id == ctx->bcast_sta_id) - key_flags |= STA_KEY_MULTICAST_MSK; - - spin_lock_irqsave(&priv->sta_lock, flags); - - priv->stations[sta_id].keyinfo.cipher = keyconf->cipher; - priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; - priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx; - - memcpy(priv->stations[sta_id].keyinfo.key, - keyconf->key, keyconf->keylen); - - memcpy(&priv->stations[sta_id].sta.key.key[3], - keyconf->key, keyconf->keylen); - - if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) - == STA_KEY_FLG_NO_ENC) - priv->stations[sta_id].sta.key.key_offset = - iwl_legacy_get_free_ucode_key_index(priv); - /* else, we are overriding an existing key => no need to allocated room - * in uCode. */ - - WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, - "no space for a new key"); - - priv->stations[sta_id].sta.key.key_flags = key_flags; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - memcpy(&sta_cmd, &priv->stations[sta_id].sta, - sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -static int iwl4965_set_ccmp_dynamic_key_info(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - unsigned long flags; - __le16 key_flags = 0; - struct iwl_legacy_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); - key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); - key_flags &= ~STA_KEY_FLG_INVALID; - - if (sta_id == ctx->bcast_sta_id) - key_flags |= STA_KEY_MULTICAST_MSK; - - keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].keyinfo.cipher = keyconf->cipher; - priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; - - memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, - keyconf->keylen); - - memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, - keyconf->keylen); - - if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) - == STA_KEY_FLG_NO_ENC) - priv->stations[sta_id].sta.key.key_offset = - iwl_legacy_get_free_ucode_key_index(priv); - /* else, we are overriding an existing key => no need to allocated room - * in uCode. */ - - WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, - "no space for a new key"); - - priv->stations[sta_id].sta.key.key_flags = key_flags; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - memcpy(&sta_cmd, &priv->stations[sta_id].sta, - sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -static int iwl4965_set_tkip_dynamic_key_info(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - unsigned long flags; - int ret = 0; - __le16 key_flags = 0; - - key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); - key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); - key_flags &= ~STA_KEY_FLG_INVALID; - - if (sta_id == ctx->bcast_sta_id) - key_flags |= STA_KEY_MULTICAST_MSK; - - keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; - - spin_lock_irqsave(&priv->sta_lock, flags); - - priv->stations[sta_id].keyinfo.cipher = keyconf->cipher; - priv->stations[sta_id].keyinfo.keylen = 16; - - if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) - == STA_KEY_FLG_NO_ENC) - priv->stations[sta_id].sta.key.key_offset = - iwl_legacy_get_free_ucode_key_index(priv); - /* else, we are overriding an existing key => no need to allocated room - * in uCode. */ - - WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, - "no space for a new key"); - - priv->stations[sta_id].sta.key.key_flags = key_flags; - - - /* This copy is acutally not needed: we get the key with each TX */ - memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16); - - memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16); - - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return ret; -} - -void iwl4965_update_tkip_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - struct ieee80211_sta *sta, u32 iv32, u16 *phase1key) -{ - u8 sta_id; - unsigned long flags; - int i; - - if (iwl_legacy_scan_cancel(priv)) { - /* cancel scan failed, just live w/ bad key and rely - briefly on SW decryption */ - return; - } - - sta_id = iwl_legacy_sta_id_or_broadcast(priv, ctx, sta); - if (sta_id == IWL_INVALID_STATION) - return; - - spin_lock_irqsave(&priv->sta_lock, flags); - - priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; - - for (i = 0; i < 5; i++) - priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = - cpu_to_le16(phase1key[i]); - - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - iwl_legacy_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); - - spin_unlock_irqrestore(&priv->sta_lock, flags); - -} - -int iwl4965_remove_dynamic_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - unsigned long flags; - u16 key_flags; - u8 keyidx; - struct iwl_legacy_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - ctx->key_mapping_keys--; - - spin_lock_irqsave(&priv->sta_lock, flags); - key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags); - keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3; - - IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n", - keyconf->keyidx, sta_id); - - if (keyconf->keyidx != keyidx) { - /* We need to remove a key with index different that the one - * in the uCode. This means that the key we need to remove has - * been replaced by another one with different index. - * Don't do anything and return ok - */ - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; - } - - if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) { - IWL_WARN(priv, "Removing wrong key %d 0x%x\n", - keyconf->keyidx, key_flags); - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; - } - - if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset, - &priv->ucode_key_table)) - IWL_ERR(priv, "index %d not used in uCode key table.\n", - priv->stations[sta_id].sta.key.key_offset); - memset(&priv->stations[sta_id].keyinfo, 0, - sizeof(struct iwl_hw_key)); - memset(&priv->stations[sta_id].sta.key, 0, - sizeof(struct iwl4965_keyinfo)); - priv->stations[sta_id].sta.key.key_flags = - STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; - priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - if (iwl_legacy_is_rfkill(priv)) { - IWL_DEBUG_WEP(priv, - "Not sending REPLY_ADD_STA command because RFKILL enabled.\n"); - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; - } - memcpy(&sta_cmd, &priv->stations[sta_id].sta, - sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -int iwl4965_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, u8 sta_id) -{ - int ret; - - lockdep_assert_held(&priv->mutex); - - ctx->key_mapping_keys++; - keyconf->hw_key_idx = HW_KEY_DYNAMIC; - - switch (keyconf->cipher) { - case WLAN_CIPHER_SUITE_CCMP: - ret = iwl4965_set_ccmp_dynamic_key_info(priv, ctx, - keyconf, sta_id); - break; - case WLAN_CIPHER_SUITE_TKIP: - ret = iwl4965_set_tkip_dynamic_key_info(priv, ctx, - keyconf, sta_id); - break; - case WLAN_CIPHER_SUITE_WEP40: - case WLAN_CIPHER_SUITE_WEP104: - ret = iwl4965_set_wep_dynamic_key_info(priv, ctx, - keyconf, sta_id); - break; - default: - IWL_ERR(priv, - "Unknown alg: %s cipher = %x\n", __func__, - keyconf->cipher); - ret = -EINVAL; - } - - IWL_DEBUG_WEP(priv, - "Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n", - keyconf->cipher, keyconf->keylen, keyconf->keyidx, - sta_id, ret); - - return ret; -} - -/** - * iwl4965_alloc_bcast_station - add broadcast station into driver's station table. - * - * This adds the broadcast station into the driver's station table - * and marks it driver active, so that it will be restored to the - * device at the next best time. - */ -int iwl4965_alloc_bcast_station(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - struct iwl_link_quality_cmd *link_cmd; - unsigned long flags; - u8 sta_id; - - spin_lock_irqsave(&priv->sta_lock, flags); - sta_id = iwl_legacy_prep_station(priv, ctx, iwlegacy_bcast_addr, - false, NULL); - if (sta_id == IWL_INVALID_STATION) { - IWL_ERR(priv, "Unable to prepare broadcast station\n"); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return -EINVAL; - } - - priv->stations[sta_id].used |= IWL_STA_DRIVER_ACTIVE; - priv->stations[sta_id].used |= IWL_STA_BCAST; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - link_cmd = iwl4965_sta_alloc_lq(priv, sta_id); - if (!link_cmd) { - IWL_ERR(priv, - "Unable to initialize rate scaling for bcast station.\n"); - return -ENOMEM; - } - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].lq = link_cmd; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return 0; -} - -/** - * iwl4965_update_bcast_station - update broadcast station's LQ command - * - * Only used by iwl4965. Placed here to have all bcast station management - * code together. - */ -static int iwl4965_update_bcast_station(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - unsigned long flags; - struct iwl_link_quality_cmd *link_cmd; - u8 sta_id = ctx->bcast_sta_id; - - link_cmd = iwl4965_sta_alloc_lq(priv, sta_id); - if (!link_cmd) { - IWL_ERR(priv, - "Unable to initialize rate scaling for bcast station.\n"); - return -ENOMEM; - } - - spin_lock_irqsave(&priv->sta_lock, flags); - if (priv->stations[sta_id].lq) - kfree(priv->stations[sta_id].lq); - else - IWL_DEBUG_INFO(priv, - "Bcast station rate scaling has not been initialized yet.\n"); - priv->stations[sta_id].lq = link_cmd; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return 0; -} - -int iwl4965_update_bcast_stations(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx; - int ret = 0; - - for_each_context(priv, ctx) { - ret = iwl4965_update_bcast_station(priv, ctx); - if (ret) - break; - } - - return ret; -} - -/** - * iwl4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table - */ -int iwl4965_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid) -{ - unsigned long flags; - struct iwl_legacy_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - /* Remove "disable" flag, to enable Tx for this TID */ - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; - priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - memcpy(&sta_cmd, &priv->stations[sta_id].sta, - sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -int iwl4965_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta, - int tid, u16 ssn) -{ - unsigned long flags; - int sta_id; - struct iwl_legacy_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - sta_id = iwl_legacy_sta_id(sta); - if (sta_id == IWL_INVALID_STATION) - return -ENXIO; - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].sta.station_flags_msk = 0; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK; - priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid; - priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn); - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - memcpy(&sta_cmd, &priv->stations[sta_id].sta, - sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -int iwl4965_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta, - int tid) -{ - unsigned long flags; - int sta_id; - struct iwl_legacy_addsta_cmd sta_cmd; - - lockdep_assert_held(&priv->mutex); - - sta_id = iwl_legacy_sta_id(sta); - if (sta_id == IWL_INVALID_STATION) { - IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid); - return -ENXIO; - } - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].sta.station_flags_msk = 0; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK; - priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - memcpy(&sta_cmd, &priv->stations[sta_id].sta, - sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -void -iwl4965_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt) -{ - unsigned long flags; - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK; - priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; - priv->stations[sta_id].sta.sta.modify_mask = - STA_MODIFY_SLEEP_TX_COUNT_MSK; - priv->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt); - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - iwl_legacy_send_add_sta(priv, - &priv->stations[sta_id].sta, CMD_ASYNC); - spin_unlock_irqrestore(&priv->sta_lock, flags); - -} diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c b/drivers/net/wireless/iwlegacy/iwl-4965-tx.c deleted file mode 100644 index 7f12e3638bae..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c +++ /dev/null @@ -1,1378 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/sched.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-sta.h" -#include "iwl-io.h" -#include "iwl-helpers.h" -#include "iwl-4965-hw.h" -#include "iwl-4965.h" - -/* - * mac80211 queues, ACs, hardware queues, FIFOs. - * - * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues - * - * Mac80211 uses the following numbers, which we get as from it - * by way of skb_get_queue_mapping(skb): - * - * VO 0 - * VI 1 - * BE 2 - * BK 3 - * - * - * Regular (not A-MPDU) frames are put into hardware queues corresponding - * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their - * own queue per aggregation session (RA/TID combination), such queues are - * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In - * order to map frames to the right queue, we also need an AC->hw queue - * mapping. This is implemented here. - * - * Due to the way hw queues are set up (by the hw specific modules like - * iwl-4965.c), the AC->hw queue mapping is the identity - * mapping. - */ - -static const u8 tid_to_ac[] = { - IEEE80211_AC_BE, - IEEE80211_AC_BK, - IEEE80211_AC_BK, - IEEE80211_AC_BE, - IEEE80211_AC_VI, - IEEE80211_AC_VI, - IEEE80211_AC_VO, - IEEE80211_AC_VO -}; - -static inline int iwl4965_get_ac_from_tid(u16 tid) -{ - if (likely(tid < ARRAY_SIZE(tid_to_ac))) - return tid_to_ac[tid]; - - /* no support for TIDs 8-15 yet */ - return -EINVAL; -} - -static inline int -iwl4965_get_fifo_from_tid(struct iwl_rxon_context *ctx, u16 tid) -{ - if (likely(tid < ARRAY_SIZE(tid_to_ac))) - return ctx->ac_to_fifo[tid_to_ac[tid]]; - - /* no support for TIDs 8-15 yet */ - return -EINVAL; -} - -/* - * handle build REPLY_TX command notification. - */ -static void iwl4965_tx_cmd_build_basic(struct iwl_priv *priv, - struct sk_buff *skb, - struct iwl_tx_cmd *tx_cmd, - struct ieee80211_tx_info *info, - struct ieee80211_hdr *hdr, - u8 std_id) -{ - __le16 fc = hdr->frame_control; - __le32 tx_flags = tx_cmd->tx_flags; - - tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { - tx_flags |= TX_CMD_FLG_ACK_MSK; - if (ieee80211_is_mgmt(fc)) - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - if (ieee80211_is_probe_resp(fc) && - !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) - tx_flags |= TX_CMD_FLG_TSF_MSK; - } else { - tx_flags &= (~TX_CMD_FLG_ACK_MSK); - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - } - - if (ieee80211_is_back_req(fc)) - tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK; - - tx_cmd->sta_id = std_id; - if (ieee80211_has_morefrags(fc)) - tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; - - if (ieee80211_is_data_qos(fc)) { - u8 *qc = ieee80211_get_qos_ctl(hdr); - tx_cmd->tid_tspec = qc[0] & 0xf; - tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; - } else { - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - } - - iwl_legacy_tx_cmd_protection(priv, info, fc, &tx_flags); - - tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); - if (ieee80211_is_mgmt(fc)) { - if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) - tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); - else - tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); - } else { - tx_cmd->timeout.pm_frame_timeout = 0; - } - - tx_cmd->driver_txop = 0; - tx_cmd->tx_flags = tx_flags; - tx_cmd->next_frame_len = 0; -} - -#define RTS_DFAULT_RETRY_LIMIT 60 - -static void iwl4965_tx_cmd_build_rate(struct iwl_priv *priv, - struct iwl_tx_cmd *tx_cmd, - struct ieee80211_tx_info *info, - __le16 fc) -{ - u32 rate_flags; - int rate_idx; - u8 rts_retry_limit; - u8 data_retry_limit; - u8 rate_plcp; - - /* Set retry limit on DATA packets and Probe Responses*/ - if (ieee80211_is_probe_resp(fc)) - data_retry_limit = 3; - else - data_retry_limit = IWL4965_DEFAULT_TX_RETRY; - tx_cmd->data_retry_limit = data_retry_limit; - - /* Set retry limit on RTS packets */ - rts_retry_limit = RTS_DFAULT_RETRY_LIMIT; - if (data_retry_limit < rts_retry_limit) - rts_retry_limit = data_retry_limit; - tx_cmd->rts_retry_limit = rts_retry_limit; - - /* DATA packets will use the uCode station table for rate/antenna - * selection */ - if (ieee80211_is_data(fc)) { - tx_cmd->initial_rate_index = 0; - tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK; - return; - } - - /** - * If the current TX rate stored in mac80211 has the MCS bit set, it's - * not really a TX rate. Thus, we use the lowest supported rate for - * this band. Also use the lowest supported rate if the stored rate - * index is invalid. - */ - rate_idx = info->control.rates[0].idx; - if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS || - (rate_idx < 0) || (rate_idx > IWL_RATE_COUNT_LEGACY)) - rate_idx = rate_lowest_index(&priv->bands[info->band], - info->control.sta); - /* For 5 GHZ band, remap mac80211 rate indices into driver indices */ - if (info->band == IEEE80211_BAND_5GHZ) - rate_idx += IWL_FIRST_OFDM_RATE; - /* Get PLCP rate for tx_cmd->rate_n_flags */ - rate_plcp = iwlegacy_rates[rate_idx].plcp; - /* Zero out flags for this packet */ - rate_flags = 0; - - /* Set CCK flag as needed */ - if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE)) - rate_flags |= RATE_MCS_CCK_MSK; - - /* Set up antennas */ - priv->mgmt_tx_ant = iwl4965_toggle_tx_ant(priv, priv->mgmt_tx_ant, - priv->hw_params.valid_tx_ant); - - rate_flags |= iwl4965_ant_idx_to_flags(priv->mgmt_tx_ant); - - /* Set the rate in the TX cmd */ - tx_cmd->rate_n_flags = iwl4965_hw_set_rate_n_flags(rate_plcp, rate_flags); -} - -static void iwl4965_tx_cmd_build_hwcrypto(struct iwl_priv *priv, - struct ieee80211_tx_info *info, - struct iwl_tx_cmd *tx_cmd, - struct sk_buff *skb_frag, - int sta_id) -{ - struct ieee80211_key_conf *keyconf = info->control.hw_key; - - switch (keyconf->cipher) { - case WLAN_CIPHER_SUITE_CCMP: - tx_cmd->sec_ctl = TX_CMD_SEC_CCM; - memcpy(tx_cmd->key, keyconf->key, keyconf->keylen); - if (info->flags & IEEE80211_TX_CTL_AMPDU) - tx_cmd->tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK; - IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n"); - break; - - case WLAN_CIPHER_SUITE_TKIP: - tx_cmd->sec_ctl = TX_CMD_SEC_TKIP; - ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key); - IWL_DEBUG_TX(priv, "tx_cmd with tkip hwcrypto\n"); - break; - - case WLAN_CIPHER_SUITE_WEP104: - tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; - /* fall through */ - case WLAN_CIPHER_SUITE_WEP40: - tx_cmd->sec_ctl |= (TX_CMD_SEC_WEP | - (keyconf->keyidx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT); - - memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen); - - IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption " - "with key %d\n", keyconf->keyidx); - break; - - default: - IWL_ERR(priv, "Unknown encode cipher %x\n", keyconf->cipher); - break; - } -} - -/* - * start REPLY_TX command process - */ -int iwl4965_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_sta *sta = info->control.sta; - struct iwl_station_priv *sta_priv = NULL; - struct iwl_tx_queue *txq; - struct iwl_queue *q; - struct iwl_device_cmd *out_cmd; - struct iwl_cmd_meta *out_meta; - struct iwl_tx_cmd *tx_cmd; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - int txq_id; - dma_addr_t phys_addr; - dma_addr_t txcmd_phys; - dma_addr_t scratch_phys; - u16 len, firstlen, secondlen; - u16 seq_number = 0; - __le16 fc; - u8 hdr_len; - u8 sta_id; - u8 wait_write_ptr = 0; - u8 tid = 0; - u8 *qc = NULL; - unsigned long flags; - bool is_agg = false; - - if (info->control.vif) - ctx = iwl_legacy_rxon_ctx_from_vif(info->control.vif); - - spin_lock_irqsave(&priv->lock, flags); - if (iwl_legacy_is_rfkill(priv)) { - IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n"); - goto drop_unlock; - } - - fc = hdr->frame_control; - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (ieee80211_is_auth(fc)) - IWL_DEBUG_TX(priv, "Sending AUTH frame\n"); - else if (ieee80211_is_assoc_req(fc)) - IWL_DEBUG_TX(priv, "Sending ASSOC frame\n"); - else if (ieee80211_is_reassoc_req(fc)) - IWL_DEBUG_TX(priv, "Sending REASSOC frame\n"); -#endif - - hdr_len = ieee80211_hdrlen(fc); - - /* For management frames use broadcast id to do not break aggregation */ - if (!ieee80211_is_data(fc)) - sta_id = ctx->bcast_sta_id; - else { - /* Find index into station table for destination station */ - sta_id = iwl_legacy_sta_id_or_broadcast(priv, ctx, info->control.sta); - - if (sta_id == IWL_INVALID_STATION) { - IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", - hdr->addr1); - goto drop_unlock; - } - } - - IWL_DEBUG_TX(priv, "station Id %d\n", sta_id); - - if (sta) - sta_priv = (void *)sta->drv_priv; - - if (sta_priv && sta_priv->asleep && - (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) { - /* - * This sends an asynchronous command to the device, - * but we can rely on it being processed before the - * next frame is processed -- and the next frame to - * this station is the one that will consume this - * counter. - * For now set the counter to just 1 since we do not - * support uAPSD yet. - */ - iwl4965_sta_modify_sleep_tx_count(priv, sta_id, 1); - } - - /* - * Send this frame after DTIM -- there's a special queue - * reserved for this for contexts that support AP mode. - */ - if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) { - txq_id = ctx->mcast_queue; - /* - * The microcode will clear the more data - * bit in the last frame it transmits. - */ - hdr->frame_control |= - cpu_to_le16(IEEE80211_FCTL_MOREDATA); - } else - txq_id = ctx->ac_to_queue[skb_get_queue_mapping(skb)]; - - /* irqs already disabled/saved above when locking priv->lock */ - spin_lock(&priv->sta_lock); - - if (ieee80211_is_data_qos(fc)) { - qc = ieee80211_get_qos_ctl(hdr); - tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; - if (WARN_ON_ONCE(tid >= MAX_TID_COUNT)) { - spin_unlock(&priv->sta_lock); - goto drop_unlock; - } - seq_number = priv->stations[sta_id].tid[tid].seq_number; - seq_number &= IEEE80211_SCTL_SEQ; - hdr->seq_ctrl = hdr->seq_ctrl & - cpu_to_le16(IEEE80211_SCTL_FRAG); - hdr->seq_ctrl |= cpu_to_le16(seq_number); - seq_number += 0x10; - /* aggregation is on for this <sta,tid> */ - if (info->flags & IEEE80211_TX_CTL_AMPDU && - priv->stations[sta_id].tid[tid].agg.state == IWL_AGG_ON) { - txq_id = priv->stations[sta_id].tid[tid].agg.txq_id; - is_agg = true; - } - } - - txq = &priv->txq[txq_id]; - q = &txq->q; - - if (unlikely(iwl_legacy_queue_space(q) < q->high_mark)) { - spin_unlock(&priv->sta_lock); - goto drop_unlock; - } - - if (ieee80211_is_data_qos(fc)) { - priv->stations[sta_id].tid[tid].tfds_in_queue++; - if (!ieee80211_has_morefrags(fc)) - priv->stations[sta_id].tid[tid].seq_number = seq_number; - } - - spin_unlock(&priv->sta_lock); - - /* Set up driver data for this TFD */ - memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); - txq->txb[q->write_ptr].skb = skb; - txq->txb[q->write_ptr].ctx = ctx; - - /* Set up first empty entry in queue's array of Tx/cmd buffers */ - out_cmd = txq->cmd[q->write_ptr]; - out_meta = &txq->meta[q->write_ptr]; - tx_cmd = &out_cmd->cmd.tx; - memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); - memset(tx_cmd, 0, sizeof(struct iwl_tx_cmd)); - - /* - * Set up the Tx-command (not MAC!) header. - * Store the chosen Tx queue and TFD index within the sequence field; - * after Tx, uCode's Tx response will return this value so driver can - * locate the frame within the tx queue and do post-tx processing. - */ - out_cmd->hdr.cmd = REPLY_TX; - out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | - INDEX_TO_SEQ(q->write_ptr))); - - /* Copy MAC header from skb into command buffer */ - memcpy(tx_cmd->hdr, hdr, hdr_len); - - - /* Total # bytes to be transmitted */ - len = (u16)skb->len; - tx_cmd->len = cpu_to_le16(len); - - if (info->control.hw_key) - iwl4965_tx_cmd_build_hwcrypto(priv, info, tx_cmd, skb, sta_id); - - /* TODO need this for burst mode later on */ - iwl4965_tx_cmd_build_basic(priv, skb, tx_cmd, info, hdr, sta_id); - iwl_legacy_dbg_log_tx_data_frame(priv, len, hdr); - - iwl4965_tx_cmd_build_rate(priv, tx_cmd, info, fc); - - iwl_legacy_update_stats(priv, true, fc, len); - /* - * Use the first empty entry in this queue's command buffer array - * to contain the Tx command and MAC header concatenated together - * (payload data will be in another buffer). - * Size of this varies, due to varying MAC header length. - * If end is not dword aligned, we'll have 2 extra bytes at the end - * of the MAC header (device reads on dword boundaries). - * We'll tell device about this padding later. - */ - len = sizeof(struct iwl_tx_cmd) + - sizeof(struct iwl_cmd_header) + hdr_len; - firstlen = (len + 3) & ~3; - - /* Tell NIC about any 2-byte padding after MAC header */ - if (firstlen != len) - tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK; - - /* Physical address of this Tx command's header (not MAC header!), - * within command buffer array. */ - txcmd_phys = pci_map_single(priv->pci_dev, - &out_cmd->hdr, firstlen, - PCI_DMA_BIDIRECTIONAL); - dma_unmap_addr_set(out_meta, mapping, txcmd_phys); - dma_unmap_len_set(out_meta, len, firstlen); - /* Add buffer containing Tx command and MAC(!) header to TFD's - * first entry */ - priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, - txcmd_phys, firstlen, 1, 0); - - if (!ieee80211_has_morefrags(hdr->frame_control)) { - txq->need_update = 1; - } else { - wait_write_ptr = 1; - txq->need_update = 0; - } - - /* Set up TFD's 2nd entry to point directly to remainder of skb, - * if any (802.11 null frames have no payload). */ - secondlen = skb->len - hdr_len; - if (secondlen > 0) { - phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, - secondlen, PCI_DMA_TODEVICE); - priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, - phys_addr, secondlen, - 0, 0); - } - - scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) + - offsetof(struct iwl_tx_cmd, scratch); - - /* take back ownership of DMA buffer to enable update */ - pci_dma_sync_single_for_cpu(priv->pci_dev, txcmd_phys, - firstlen, PCI_DMA_BIDIRECTIONAL); - tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys); - tx_cmd->dram_msb_ptr = iwl_legacy_get_dma_hi_addr(scratch_phys); - - IWL_DEBUG_TX(priv, "sequence nr = 0X%x\n", - le16_to_cpu(out_cmd->hdr.sequence)); - IWL_DEBUG_TX(priv, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd)); - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len); - - /* Set up entry for this TFD in Tx byte-count array */ - if (info->flags & IEEE80211_TX_CTL_AMPDU) - priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, - le16_to_cpu(tx_cmd->len)); - - pci_dma_sync_single_for_device(priv->pci_dev, txcmd_phys, - firstlen, PCI_DMA_BIDIRECTIONAL); - - trace_iwlwifi_legacy_dev_tx(priv, - &((struct iwl_tfd *)txq->tfds)[txq->q.write_ptr], - sizeof(struct iwl_tfd), - &out_cmd->hdr, firstlen, - skb->data + hdr_len, secondlen); - - /* Tell device the write index *just past* this latest filled TFD */ - q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd); - iwl_legacy_txq_update_write_ptr(priv, txq); - spin_unlock_irqrestore(&priv->lock, flags); - - /* - * At this point the frame is "transmitted" successfully - * and we will get a TX status notification eventually, - * regardless of the value of ret. "ret" only indicates - * whether or not we should update the write pointer. - */ - - /* - * Avoid atomic ops if it isn't an associated client. - * Also, if this is a packet for aggregation, don't - * increase the counter because the ucode will stop - * aggregation queues when their respective station - * goes to sleep. - */ - if (sta_priv && sta_priv->client && !is_agg) - atomic_inc(&sta_priv->pending_frames); - - if ((iwl_legacy_queue_space(q) < q->high_mark) && - priv->mac80211_registered) { - if (wait_write_ptr) { - spin_lock_irqsave(&priv->lock, flags); - txq->need_update = 1; - iwl_legacy_txq_update_write_ptr(priv, txq); - spin_unlock_irqrestore(&priv->lock, flags); - } else { - iwl_legacy_stop_queue(priv, txq); - } - } - - return 0; - -drop_unlock: - spin_unlock_irqrestore(&priv->lock, flags); - return -1; -} - -static inline int iwl4965_alloc_dma_ptr(struct iwl_priv *priv, - struct iwl_dma_ptr *ptr, size_t size) -{ - ptr->addr = dma_alloc_coherent(&priv->pci_dev->dev, size, &ptr->dma, - GFP_KERNEL); - if (!ptr->addr) - return -ENOMEM; - ptr->size = size; - return 0; -} - -static inline void iwl4965_free_dma_ptr(struct iwl_priv *priv, - struct iwl_dma_ptr *ptr) -{ - if (unlikely(!ptr->addr)) - return; - - dma_free_coherent(&priv->pci_dev->dev, ptr->size, ptr->addr, ptr->dma); - memset(ptr, 0, sizeof(*ptr)); -} - -/** - * iwl4965_hw_txq_ctx_free - Free TXQ Context - * - * Destroy all TX DMA queues and structures - */ -void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv) -{ - int txq_id; - - /* Tx queues */ - if (priv->txq) { - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) - if (txq_id == priv->cmd_queue) - iwl_legacy_cmd_queue_free(priv); - else - iwl_legacy_tx_queue_free(priv, txq_id); - } - iwl4965_free_dma_ptr(priv, &priv->kw); - - iwl4965_free_dma_ptr(priv, &priv->scd_bc_tbls); - - /* free tx queue structure */ - iwl_legacy_txq_mem(priv); -} - -/** - * iwl4965_txq_ctx_alloc - allocate TX queue context - * Allocate all Tx DMA structures and initialize them - * - * @param priv - * @return error code - */ -int iwl4965_txq_ctx_alloc(struct iwl_priv *priv) -{ - int ret; - int txq_id, slots_num; - unsigned long flags; - - /* Free all tx/cmd queues and keep-warm buffer */ - iwl4965_hw_txq_ctx_free(priv); - - ret = iwl4965_alloc_dma_ptr(priv, &priv->scd_bc_tbls, - priv->hw_params.scd_bc_tbls_size); - if (ret) { - IWL_ERR(priv, "Scheduler BC Table allocation failed\n"); - goto error_bc_tbls; - } - /* Alloc keep-warm buffer */ - ret = iwl4965_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE); - if (ret) { - IWL_ERR(priv, "Keep Warm allocation failed\n"); - goto error_kw; - } - - /* allocate tx queue structure */ - ret = iwl_legacy_alloc_txq_mem(priv); - if (ret) - goto error; - - spin_lock_irqsave(&priv->lock, flags); - - /* Turn off all Tx DMA fifos */ - iwl4965_txq_set_sched(priv, 0); - - /* Tell NIC where to find the "keep warm" buffer */ - iwl_legacy_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Alloc and init all Tx queues, including the command queue (#4/#9) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = (txq_id == priv->cmd_queue) ? - TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - ret = iwl_legacy_tx_queue_init(priv, - &priv->txq[txq_id], slots_num, - txq_id); - if (ret) { - IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); - goto error; - } - } - - return ret; - - error: - iwl4965_hw_txq_ctx_free(priv); - iwl4965_free_dma_ptr(priv, &priv->kw); - error_kw: - iwl4965_free_dma_ptr(priv, &priv->scd_bc_tbls); - error_bc_tbls: - return ret; -} - -void iwl4965_txq_ctx_reset(struct iwl_priv *priv) -{ - int txq_id, slots_num; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - - /* Turn off all Tx DMA fifos */ - iwl4965_txq_set_sched(priv, 0); - - /* Tell NIC where to find the "keep warm" buffer */ - iwl_legacy_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Alloc and init all Tx queues, including the command queue (#4) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = txq_id == priv->cmd_queue ? - TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - iwl_legacy_tx_queue_reset(priv, &priv->txq[txq_id], - slots_num, txq_id); - } -} - -/** - * iwl4965_txq_ctx_stop - Stop all Tx DMA channels - */ -void iwl4965_txq_ctx_stop(struct iwl_priv *priv) -{ - int ch, txq_id; - unsigned long flags; - - /* Turn off all Tx DMA fifos */ - spin_lock_irqsave(&priv->lock, flags); - - iwl4965_txq_set_sched(priv, 0); - - /* Stop each Tx DMA channel, and wait for it to be idle */ - for (ch = 0; ch < priv->hw_params.dma_chnl_num; ch++) { - iwl_legacy_write_direct32(priv, - FH_TCSR_CHNL_TX_CONFIG_REG(ch), 0x0); - if (iwl_poll_direct_bit(priv, FH_TSSR_TX_STATUS_REG, - FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ch), - 1000)) - IWL_ERR(priv, "Failing on timeout while stopping" - " DMA channel %d [0x%08x]", ch, - iwl_legacy_read_direct32(priv, - FH_TSSR_TX_STATUS_REG)); - } - spin_unlock_irqrestore(&priv->lock, flags); - - if (!priv->txq) - return; - - /* Unmap DMA from host system and free skb's */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) - if (txq_id == priv->cmd_queue) - iwl_legacy_cmd_queue_unmap(priv); - else - iwl_legacy_tx_queue_unmap(priv, txq_id); -} - -/* - * Find first available (lowest unused) Tx Queue, mark it "active". - * Called only when finding queue for aggregation. - * Should never return anything < 7, because they should already - * be in use as EDCA AC (0-3), Command (4), reserved (5, 6) - */ -static int iwl4965_txq_ctx_activate_free(struct iwl_priv *priv) -{ - int txq_id; - - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) - if (!test_and_set_bit(txq_id, &priv->txq_ctx_active_msk)) - return txq_id; - return -1; -} - -/** - * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration - */ -static void iwl4965_tx_queue_stop_scheduler(struct iwl_priv *priv, - u16 txq_id) -{ - /* Simply stop the queue, but don't change any configuration; - * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ - iwl_legacy_write_prph(priv, - IWL49_SCD_QUEUE_STATUS_BITS(txq_id), - (0 << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE)| - (1 << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); -} - -/** - * iwl4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue - */ -static int iwl4965_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, - u16 txq_id) -{ - u32 tbl_dw_addr; - u32 tbl_dw; - u16 scd_q2ratid; - - scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK; - - tbl_dw_addr = priv->scd_base_addr + - IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id); - - tbl_dw = iwl_legacy_read_targ_mem(priv, tbl_dw_addr); - - if (txq_id & 0x1) - tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); - else - tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); - - iwl_legacy_write_targ_mem(priv, tbl_dw_addr, tbl_dw); - - return 0; -} - -/** - * iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue - * - * NOTE: txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE, - * i.e. it must be one of the higher queues used for aggregation - */ -static int iwl4965_txq_agg_enable(struct iwl_priv *priv, int txq_id, - int tx_fifo, int sta_id, int tid, u16 ssn_idx) -{ - unsigned long flags; - u16 ra_tid; - int ret; - - if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) || - (IWL49_FIRST_AMPDU_QUEUE + - priv->cfg->base_params->num_of_ampdu_queues <= txq_id)) { - IWL_WARN(priv, - "queue number out of range: %d, must be %d to %d\n", - txq_id, IWL49_FIRST_AMPDU_QUEUE, - IWL49_FIRST_AMPDU_QUEUE + - priv->cfg->base_params->num_of_ampdu_queues - 1); - return -EINVAL; - } - - ra_tid = BUILD_RAxTID(sta_id, tid); - - /* Modify device's station table to Tx this TID */ - ret = iwl4965_sta_tx_modify_enable_tid(priv, sta_id, tid); - if (ret) - return ret; - - spin_lock_irqsave(&priv->lock, flags); - - /* Stop this Tx queue before configuring it */ - iwl4965_tx_queue_stop_scheduler(priv, txq_id); - - /* Map receiver-address / traffic-ID to this queue */ - iwl4965_tx_queue_set_q2ratid(priv, ra_tid, txq_id); - - /* Set this queue as a chain-building queue */ - iwl_legacy_set_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id)); - - /* Place first TFD at index corresponding to start sequence number. - * Assumes that ssn_idx is valid (!= 0xFFF) */ - priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); - priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); - iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx); - - /* Set up Tx window size and frame limit for this queue */ - iwl_legacy_write_targ_mem(priv, - priv->scd_base_addr + IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id), - (SCD_WIN_SIZE << IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) & - IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK); - - iwl_legacy_write_targ_mem(priv, priv->scd_base_addr + - IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32), - (SCD_FRAME_LIMIT << IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) - & IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK); - - iwl_legacy_set_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id)); - - /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ - iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1); - - spin_unlock_irqrestore(&priv->lock, flags); - - return 0; -} - - -int iwl4965_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif, - struct ieee80211_sta *sta, u16 tid, u16 *ssn) -{ - int sta_id; - int tx_fifo; - int txq_id; - int ret; - unsigned long flags; - struct iwl_tid_data *tid_data; - - tx_fifo = iwl4965_get_fifo_from_tid(iwl_legacy_rxon_ctx_from_vif(vif), tid); - if (unlikely(tx_fifo < 0)) - return tx_fifo; - - IWL_WARN(priv, "%s on ra = %pM tid = %d\n", - __func__, sta->addr, tid); - - sta_id = iwl_legacy_sta_id(sta); - if (sta_id == IWL_INVALID_STATION) { - IWL_ERR(priv, "Start AGG on invalid station\n"); - return -ENXIO; - } - if (unlikely(tid >= MAX_TID_COUNT)) - return -EINVAL; - - if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) { - IWL_ERR(priv, "Start AGG when state is not IWL_AGG_OFF !\n"); - return -ENXIO; - } - - txq_id = iwl4965_txq_ctx_activate_free(priv); - if (txq_id == -1) { - IWL_ERR(priv, "No free aggregation queue available\n"); - return -ENXIO; - } - - spin_lock_irqsave(&priv->sta_lock, flags); - tid_data = &priv->stations[sta_id].tid[tid]; - *ssn = SEQ_TO_SN(tid_data->seq_number); - tid_data->agg.txq_id = txq_id; - iwl_legacy_set_swq_id(&priv->txq[txq_id], - iwl4965_get_ac_from_tid(tid), txq_id); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - ret = iwl4965_txq_agg_enable(priv, txq_id, tx_fifo, - sta_id, tid, *ssn); - if (ret) - return ret; - - spin_lock_irqsave(&priv->sta_lock, flags); - tid_data = &priv->stations[sta_id].tid[tid]; - if (tid_data->tfds_in_queue == 0) { - IWL_DEBUG_HT(priv, "HW queue is empty\n"); - tid_data->agg.state = IWL_AGG_ON; - ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); - } else { - IWL_DEBUG_HT(priv, - "HW queue is NOT empty: %d packets in HW queue\n", - tid_data->tfds_in_queue); - tid_data->agg.state = IWL_EMPTYING_HW_QUEUE_ADDBA; - } - spin_unlock_irqrestore(&priv->sta_lock, flags); - return ret; -} - -/** - * txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE - * priv->lock must be held by the caller - */ -static int iwl4965_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, - u16 ssn_idx, u8 tx_fifo) -{ - if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) || - (IWL49_FIRST_AMPDU_QUEUE + - priv->cfg->base_params->num_of_ampdu_queues <= txq_id)) { - IWL_WARN(priv, - "queue number out of range: %d, must be %d to %d\n", - txq_id, IWL49_FIRST_AMPDU_QUEUE, - IWL49_FIRST_AMPDU_QUEUE + - priv->cfg->base_params->num_of_ampdu_queues - 1); - return -EINVAL; - } - - iwl4965_tx_queue_stop_scheduler(priv, txq_id); - - iwl_legacy_clear_bits_prph(priv, - IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id)); - - priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); - priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); - /* supposes that ssn_idx is valid (!= 0xFFF) */ - iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx); - - iwl_legacy_clear_bits_prph(priv, - IWL49_SCD_INTERRUPT_MASK, (1 << txq_id)); - iwl_txq_ctx_deactivate(priv, txq_id); - iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0); - - return 0; -} - -int iwl4965_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif, - struct ieee80211_sta *sta, u16 tid) -{ - int tx_fifo_id, txq_id, sta_id, ssn; - struct iwl_tid_data *tid_data; - int write_ptr, read_ptr; - unsigned long flags; - - tx_fifo_id = iwl4965_get_fifo_from_tid(iwl_legacy_rxon_ctx_from_vif(vif), tid); - if (unlikely(tx_fifo_id < 0)) - return tx_fifo_id; - - sta_id = iwl_legacy_sta_id(sta); - - if (sta_id == IWL_INVALID_STATION) { - IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid); - return -ENXIO; - } - - spin_lock_irqsave(&priv->sta_lock, flags); - - tid_data = &priv->stations[sta_id].tid[tid]; - ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4; - txq_id = tid_data->agg.txq_id; - - switch (priv->stations[sta_id].tid[tid].agg.state) { - case IWL_EMPTYING_HW_QUEUE_ADDBA: - /* - * This can happen if the peer stops aggregation - * again before we've had a chance to drain the - * queue we selected previously, i.e. before the - * session was really started completely. - */ - IWL_DEBUG_HT(priv, "AGG stop before setup done\n"); - goto turn_off; - case IWL_AGG_ON: - break; - default: - IWL_WARN(priv, "Stopping AGG while state not ON or starting\n"); - } - - write_ptr = priv->txq[txq_id].q.write_ptr; - read_ptr = priv->txq[txq_id].q.read_ptr; - - /* The queue is not empty */ - if (write_ptr != read_ptr) { - IWL_DEBUG_HT(priv, "Stopping a non empty AGG HW QUEUE\n"); - priv->stations[sta_id].tid[tid].agg.state = - IWL_EMPTYING_HW_QUEUE_DELBA; - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; - } - - IWL_DEBUG_HT(priv, "HW queue is empty\n"); - turn_off: - priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF; - - /* do not restore/save irqs */ - spin_unlock(&priv->sta_lock); - spin_lock(&priv->lock); - - /* - * the only reason this call can fail is queue number out of range, - * which can happen if uCode is reloaded and all the station - * information are lost. if it is outside the range, there is no need - * to deactivate the uCode queue, just return "success" to allow - * mac80211 to clean up it own data. - */ - iwl4965_txq_agg_disable(priv, txq_id, ssn, tx_fifo_id); - spin_unlock_irqrestore(&priv->lock, flags); - - ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); - - return 0; -} - -int iwl4965_txq_check_empty(struct iwl_priv *priv, - int sta_id, u8 tid, int txq_id) -{ - struct iwl_queue *q = &priv->txq[txq_id].q; - u8 *addr = priv->stations[sta_id].sta.sta.addr; - struct iwl_tid_data *tid_data = &priv->stations[sta_id].tid[tid]; - struct iwl_rxon_context *ctx; - - ctx = &priv->contexts[priv->stations[sta_id].ctxid]; - - lockdep_assert_held(&priv->sta_lock); - - switch (priv->stations[sta_id].tid[tid].agg.state) { - case IWL_EMPTYING_HW_QUEUE_DELBA: - /* We are reclaiming the last packet of the */ - /* aggregated HW queue */ - if ((txq_id == tid_data->agg.txq_id) && - (q->read_ptr == q->write_ptr)) { - u16 ssn = SEQ_TO_SN(tid_data->seq_number); - int tx_fifo = iwl4965_get_fifo_from_tid(ctx, tid); - IWL_DEBUG_HT(priv, - "HW queue empty: continue DELBA flow\n"); - iwl4965_txq_agg_disable(priv, txq_id, ssn, tx_fifo); - tid_data->agg.state = IWL_AGG_OFF; - ieee80211_stop_tx_ba_cb_irqsafe(ctx->vif, addr, tid); - } - break; - case IWL_EMPTYING_HW_QUEUE_ADDBA: - /* We are reclaiming the last packet of the queue */ - if (tid_data->tfds_in_queue == 0) { - IWL_DEBUG_HT(priv, - "HW queue empty: continue ADDBA flow\n"); - tid_data->agg.state = IWL_AGG_ON; - ieee80211_start_tx_ba_cb_irqsafe(ctx->vif, addr, tid); - } - break; - } - - return 0; -} - -static void iwl4965_non_agg_tx_status(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - const u8 *addr1) -{ - struct ieee80211_sta *sta; - struct iwl_station_priv *sta_priv; - - rcu_read_lock(); - sta = ieee80211_find_sta(ctx->vif, addr1); - if (sta) { - sta_priv = (void *)sta->drv_priv; - /* avoid atomic ops if this isn't a client */ - if (sta_priv->client && - atomic_dec_return(&sta_priv->pending_frames) == 0) - ieee80211_sta_block_awake(priv->hw, sta, false); - } - rcu_read_unlock(); -} - -static void -iwl4965_tx_status(struct iwl_priv *priv, struct iwl_tx_info *tx_info, - bool is_agg) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx_info->skb->data; - - if (!is_agg) - iwl4965_non_agg_tx_status(priv, tx_info->ctx, hdr->addr1); - - ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb); -} - -int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl_queue *q = &txq->q; - struct iwl_tx_info *tx_info; - int nfreed = 0; - struct ieee80211_hdr *hdr; - - if ((index >= q->n_bd) || (iwl_legacy_queue_used(q, index) == 0)) { - IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, " - "is out of range [0-%d] %d %d.\n", txq_id, - index, q->n_bd, q->write_ptr, q->read_ptr); - return 0; - } - - for (index = iwl_legacy_queue_inc_wrap(index, q->n_bd); - q->read_ptr != index; - q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) { - - tx_info = &txq->txb[txq->q.read_ptr]; - - if (WARN_ON_ONCE(tx_info->skb == NULL)) - continue; - - hdr = (struct ieee80211_hdr *)tx_info->skb->data; - if (ieee80211_is_data_qos(hdr->frame_control)) - nfreed++; - - iwl4965_tx_status(priv, tx_info, - txq_id >= IWL4965_FIRST_AMPDU_QUEUE); - tx_info->skb = NULL; - - priv->cfg->ops->lib->txq_free_tfd(priv, txq); - } - return nfreed; -} - -/** - * iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack - * - * Go through block-ack's bitmap of ACK'd frames, update driver's record of - * ACK vs. not. This gets sent to mac80211, then to rate scaling algo. - */ -static int iwl4965_tx_status_reply_compressed_ba(struct iwl_priv *priv, - struct iwl_ht_agg *agg, - struct iwl_compressed_ba_resp *ba_resp) - -{ - int i, sh, ack; - u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl); - u16 scd_flow = le16_to_cpu(ba_resp->scd_flow); - int successes = 0; - struct ieee80211_tx_info *info; - u64 bitmap, sent_bitmap; - - if (unlikely(!agg->wait_for_ba)) { - if (unlikely(ba_resp->bitmap)) - IWL_ERR(priv, "Received BA when not expected\n"); - return -EINVAL; - } - - /* Mark that the expected block-ack response arrived */ - agg->wait_for_ba = 0; - IWL_DEBUG_TX_REPLY(priv, "BA %d %d\n", agg->start_idx, - ba_resp->seq_ctl); - - /* Calculate shift to align block-ack bits with our Tx window bits */ - sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl >> 4); - if (sh < 0) /* tbw something is wrong with indices */ - sh += 0x100; - - if (agg->frame_count > (64 - sh)) { - IWL_DEBUG_TX_REPLY(priv, "more frames than bitmap size"); - return -1; - } - - /* don't use 64-bit values for now */ - bitmap = le64_to_cpu(ba_resp->bitmap) >> sh; - - /* check for success or failure according to the - * transmitted bitmap and block-ack bitmap */ - sent_bitmap = bitmap & agg->bitmap; - - /* For each frame attempted in aggregation, - * update driver's record of tx frame's status. */ - i = 0; - while (sent_bitmap) { - ack = sent_bitmap & 1ULL; - successes += ack; - IWL_DEBUG_TX_REPLY(priv, "%s ON i=%d idx=%d raw=%d\n", - ack ? "ACK" : "NACK", i, - (agg->start_idx + i) & 0xff, - agg->start_idx + i); - sent_bitmap >>= 1; - ++i; - } - - IWL_DEBUG_TX_REPLY(priv, "Bitmap %llx\n", - (unsigned long long)bitmap); - - info = IEEE80211_SKB_CB(priv->txq[scd_flow].txb[agg->start_idx].skb); - memset(&info->status, 0, sizeof(info->status)); - info->flags |= IEEE80211_TX_STAT_ACK; - info->flags |= IEEE80211_TX_STAT_AMPDU; - info->status.ampdu_ack_len = successes; - info->status.ampdu_len = agg->frame_count; - iwl4965_hwrate_to_tx_control(priv, agg->rate_n_flags, info); - - return 0; -} - -/** - * translate ucode response to mac80211 tx status control values - */ -void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, - struct ieee80211_tx_info *info) -{ - struct ieee80211_tx_rate *r = &info->control.rates[0]; - - info->antenna_sel_tx = - ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); - if (rate_n_flags & RATE_MCS_HT_MSK) - r->flags |= IEEE80211_TX_RC_MCS; - if (rate_n_flags & RATE_MCS_GF_MSK) - r->flags |= IEEE80211_TX_RC_GREEN_FIELD; - if (rate_n_flags & RATE_MCS_HT40_MSK) - r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; - if (rate_n_flags & RATE_MCS_DUP_MSK) - r->flags |= IEEE80211_TX_RC_DUP_DATA; - if (rate_n_flags & RATE_MCS_SGI_MSK) - r->flags |= IEEE80211_TX_RC_SHORT_GI; - r->idx = iwl4965_hwrate_to_mac80211_idx(rate_n_flags, info->band); -} - -/** - * iwl4965_rx_reply_compressed_ba - Handler for REPLY_COMPRESSED_BA - * - * Handles block-acknowledge notification from device, which reports success - * of frames sent via aggregation. - */ -void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba; - struct iwl_tx_queue *txq = NULL; - struct iwl_ht_agg *agg; - int index; - int sta_id; - int tid; - unsigned long flags; - - /* "flow" corresponds to Tx queue */ - u16 scd_flow = le16_to_cpu(ba_resp->scd_flow); - - /* "ssn" is start of block-ack Tx window, corresponds to index - * (in Tx queue's circular buffer) of first TFD/frame in window */ - u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn); - - if (scd_flow >= priv->hw_params.max_txq_num) { - IWL_ERR(priv, - "BUG_ON scd_flow is bigger than number of queues\n"); - return; - } - - txq = &priv->txq[scd_flow]; - sta_id = ba_resp->sta_id; - tid = ba_resp->tid; - agg = &priv->stations[sta_id].tid[tid].agg; - if (unlikely(agg->txq_id != scd_flow)) { - /* - * FIXME: this is a uCode bug which need to be addressed, - * log the information and return for now! - * since it is possible happen very often and in order - * not to fill the syslog, don't enable the logging by default - */ - IWL_DEBUG_TX_REPLY(priv, - "BA scd_flow %d does not match txq_id %d\n", - scd_flow, agg->txq_id); - return; - } - - /* Find index just before block-ack window */ - index = iwl_legacy_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd); - - spin_lock_irqsave(&priv->sta_lock, flags); - - IWL_DEBUG_TX_REPLY(priv, "REPLY_COMPRESSED_BA [%d] Received from %pM, " - "sta_id = %d\n", - agg->wait_for_ba, - (u8 *) &ba_resp->sta_addr_lo32, - ba_resp->sta_id); - IWL_DEBUG_TX_REPLY(priv, "TID = %d, SeqCtl = %d, bitmap = 0x%llx," - "scd_flow = " - "%d, scd_ssn = %d\n", - ba_resp->tid, - ba_resp->seq_ctl, - (unsigned long long)le64_to_cpu(ba_resp->bitmap), - ba_resp->scd_flow, - ba_resp->scd_ssn); - IWL_DEBUG_TX_REPLY(priv, "DAT start_idx = %d, bitmap = 0x%llx\n", - agg->start_idx, - (unsigned long long)agg->bitmap); - - /* Update driver's record of ACK vs. not for each frame in window */ - iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp); - - /* Release all TFDs before the SSN, i.e. all TFDs in front of - * block-ack window (we assume that they've been successfully - * transmitted ... if not, it's too late anyway). */ - if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) { - /* calculate mac80211 ampdu sw queue to wake */ - int freed = iwl4965_tx_queue_reclaim(priv, scd_flow, index); - iwl4965_free_tfds_in_queue(priv, sta_id, tid, freed); - - if ((iwl_legacy_queue_space(&txq->q) > txq->q.low_mark) && - priv->mac80211_registered && - (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) - iwl_legacy_wake_queue(priv, txq); - - iwl4965_txq_check_empty(priv, sta_id, tid, scd_flow); - } - - spin_unlock_irqrestore(&priv->sta_lock, flags); -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -const char *iwl4965_get_tx_fail_reason(u32 status) -{ -#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x -#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x - - switch (status & TX_STATUS_MSK) { - case TX_STATUS_SUCCESS: - return "SUCCESS"; - TX_STATUS_POSTPONE(DELAY); - TX_STATUS_POSTPONE(FEW_BYTES); - TX_STATUS_POSTPONE(QUIET_PERIOD); - TX_STATUS_POSTPONE(CALC_TTAK); - TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY); - TX_STATUS_FAIL(SHORT_LIMIT); - TX_STATUS_FAIL(LONG_LIMIT); - TX_STATUS_FAIL(FIFO_UNDERRUN); - TX_STATUS_FAIL(DRAIN_FLOW); - TX_STATUS_FAIL(RFKILL_FLUSH); - TX_STATUS_FAIL(LIFE_EXPIRE); - TX_STATUS_FAIL(DEST_PS); - TX_STATUS_FAIL(HOST_ABORTED); - TX_STATUS_FAIL(BT_RETRY); - TX_STATUS_FAIL(STA_INVALID); - TX_STATUS_FAIL(FRAG_DROPPED); - TX_STATUS_FAIL(TID_DISABLE); - TX_STATUS_FAIL(FIFO_FLUSHED); - TX_STATUS_FAIL(INSUFFICIENT_CF_POLL); - TX_STATUS_FAIL(PASSIVE_NO_RX); - TX_STATUS_FAIL(NO_BEACON_ON_RADAR); - } - - return "UNKNOWN"; - -#undef TX_STATUS_FAIL -#undef TX_STATUS_POSTPONE -} -#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */ diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-ucode.c b/drivers/net/wireless/iwlegacy/iwl-4965-ucode.c deleted file mode 100644 index 001d148feb94..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965-ucode.c +++ /dev/null @@ -1,166 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/sched.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-helpers.h" -#include "iwl-4965-hw.h" -#include "iwl-4965.h" -#include "iwl-4965-calib.h" - -#define IWL_AC_UNSET -1 - -/** - * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, - * using sample data 100 bytes apart. If these sample points are good, - * it's a pretty good bet that everything between them is good, too. - */ -static int -iwl4965_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) -{ - u32 val; - int ret = 0; - u32 errcnt = 0; - u32 i; - - IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); - - for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { - /* read data comes through single port, auto-incr addr */ - /* NOTE: Use the debugless read so we don't flood kernel log - * if IWL_DL_IO is set */ - iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, - i + IWL4965_RTC_INST_LOWER_BOUND); - val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT); - if (val != le32_to_cpu(*image)) { - ret = -EIO; - errcnt++; - if (errcnt >= 3) - break; - } - } - - return ret; -} - -/** - * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host, - * looking at all data. - */ -static int iwl4965_verify_inst_full(struct iwl_priv *priv, __le32 *image, - u32 len) -{ - u32 val; - u32 save_len = len; - int ret = 0; - u32 errcnt; - - IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); - - iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, - IWL4965_RTC_INST_LOWER_BOUND); - - errcnt = 0; - for (; len > 0; len -= sizeof(u32), image++) { - /* read data comes through single port, auto-incr addr */ - /* NOTE: Use the debugless read so we don't flood kernel log - * if IWL_DL_IO is set */ - val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT); - if (val != le32_to_cpu(*image)) { - IWL_ERR(priv, "uCode INST section is invalid at " - "offset 0x%x, is 0x%x, s/b 0x%x\n", - save_len - len, val, le32_to_cpu(*image)); - ret = -EIO; - errcnt++; - if (errcnt >= 20) - break; - } - } - - if (!errcnt) - IWL_DEBUG_INFO(priv, - "ucode image in INSTRUCTION memory is good\n"); - - return ret; -} - -/** - * iwl4965_verify_ucode - determine which instruction image is in SRAM, - * and verify its contents - */ -int iwl4965_verify_ucode(struct iwl_priv *priv) -{ - __le32 *image; - u32 len; - int ret; - - /* Try bootstrap */ - image = (__le32 *)priv->ucode_boot.v_addr; - len = priv->ucode_boot.len; - ret = iwl4965_verify_inst_sparse(priv, image, len); - if (!ret) { - IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); - return 0; - } - - /* Try initialize */ - image = (__le32 *)priv->ucode_init.v_addr; - len = priv->ucode_init.len; - ret = iwl4965_verify_inst_sparse(priv, image, len); - if (!ret) { - IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); - return 0; - } - - /* Try runtime/protocol */ - image = (__le32 *)priv->ucode_code.v_addr; - len = priv->ucode_code.len; - ret = iwl4965_verify_inst_sparse(priv, image, len); - if (!ret) { - IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); - return 0; - } - - IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); - - /* Since nothing seems to match, show first several data entries in - * instruction SRAM, so maybe visual inspection will give a clue. - * Selection of bootstrap image (vs. other images) is arbitrary. */ - image = (__le32 *)priv->ucode_boot.v_addr; - len = priv->ucode_boot.len; - ret = iwl4965_verify_inst_full(priv, image, len); - - return ret; -} diff --git a/drivers/net/wireless/iwlegacy/iwl-4965.c b/drivers/net/wireless/iwlegacy/iwl-4965.c deleted file mode 100644 index 86f4fce193e4..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965.c +++ /dev/null @@ -1,2183 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <net/mac80211.h> -#include <linux/etherdevice.h> -#include <asm/unaligned.h> - -#include "iwl-eeprom.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-helpers.h" -#include "iwl-4965-calib.h" -#include "iwl-sta.h" -#include "iwl-4965-led.h" -#include "iwl-4965.h" -#include "iwl-4965-debugfs.h" - -static int iwl4965_send_tx_power(struct iwl_priv *priv); -static int iwl4965_hw_get_temperature(struct iwl_priv *priv); - -/* Highest firmware API version supported */ -#define IWL4965_UCODE_API_MAX 2 - -/* Lowest firmware API version supported */ -#define IWL4965_UCODE_API_MIN 2 - -#define IWL4965_FW_PRE "iwlwifi-4965-" -#define _IWL4965_MODULE_FIRMWARE(api) IWL4965_FW_PRE #api ".ucode" -#define IWL4965_MODULE_FIRMWARE(api) _IWL4965_MODULE_FIRMWARE(api) - -/* check contents of special bootstrap uCode SRAM */ -static int iwl4965_verify_bsm(struct iwl_priv *priv) -{ - __le32 *image = priv->ucode_boot.v_addr; - u32 len = priv->ucode_boot.len; - u32 reg; - u32 val; - - IWL_DEBUG_INFO(priv, "Begin verify bsm\n"); - - /* verify BSM SRAM contents */ - val = iwl_legacy_read_prph(priv, BSM_WR_DWCOUNT_REG); - for (reg = BSM_SRAM_LOWER_BOUND; - reg < BSM_SRAM_LOWER_BOUND + len; - reg += sizeof(u32), image++) { - val = iwl_legacy_read_prph(priv, reg); - if (val != le32_to_cpu(*image)) { - IWL_ERR(priv, "BSM uCode verification failed at " - "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", - BSM_SRAM_LOWER_BOUND, - reg - BSM_SRAM_LOWER_BOUND, len, - val, le32_to_cpu(*image)); - return -EIO; - } - } - - IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n"); - - return 0; -} - -/** - * iwl4965_load_bsm - Load bootstrap instructions - * - * BSM operation: - * - * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program - * in special SRAM that does not power down during RFKILL. When powering back - * up after power-saving sleeps (or during initial uCode load), the BSM loads - * the bootstrap program into the on-board processor, and starts it. - * - * The bootstrap program loads (via DMA) instructions and data for a new - * program from host DRAM locations indicated by the host driver in the - * BSM_DRAM_* registers. Once the new program is loaded, it starts - * automatically. - * - * When initializing the NIC, the host driver points the BSM to the - * "initialize" uCode image. This uCode sets up some internal data, then - * notifies host via "initialize alive" that it is complete. - * - * The host then replaces the BSM_DRAM_* pointer values to point to the - * normal runtime uCode instructions and a backup uCode data cache buffer - * (filled initially with starting data values for the on-board processor), - * then triggers the "initialize" uCode to load and launch the runtime uCode, - * which begins normal operation. - * - * When doing a power-save shutdown, runtime uCode saves data SRAM into - * the backup data cache in DRAM before SRAM is powered down. - * - * When powering back up, the BSM loads the bootstrap program. This reloads - * the runtime uCode instructions and the backup data cache into SRAM, - * and re-launches the runtime uCode from where it left off. - */ -static int iwl4965_load_bsm(struct iwl_priv *priv) -{ - __le32 *image = priv->ucode_boot.v_addr; - u32 len = priv->ucode_boot.len; - dma_addr_t pinst; - dma_addr_t pdata; - u32 inst_len; - u32 data_len; - int i; - u32 done; - u32 reg_offset; - int ret; - - IWL_DEBUG_INFO(priv, "Begin load bsm\n"); - - priv->ucode_type = UCODE_RT; - - /* make sure bootstrap program is no larger than BSM's SRAM size */ - if (len > IWL49_MAX_BSM_SIZE) - return -EINVAL; - - /* Tell bootstrap uCode where to find the "Initialize" uCode - * in host DRAM ... host DRAM physical address bits 35:4 for 4965. - * NOTE: iwl_init_alive_start() will replace these values, - * after the "initialize" uCode has run, to point to - * runtime/protocol instructions and backup data cache. - */ - pinst = priv->ucode_init.p_addr >> 4; - pdata = priv->ucode_init_data.p_addr >> 4; - inst_len = priv->ucode_init.len; - data_len = priv->ucode_init_data.len; - - iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); - iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); - - /* Fill BSM memory with bootstrap instructions */ - for (reg_offset = BSM_SRAM_LOWER_BOUND; - reg_offset < BSM_SRAM_LOWER_BOUND + len; - reg_offset += sizeof(u32), image++) - _iwl_legacy_write_prph(priv, reg_offset, le32_to_cpu(*image)); - - ret = iwl4965_verify_bsm(priv); - if (ret) - return ret; - - /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ - iwl_legacy_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); - iwl_legacy_write_prph(priv, - BSM_WR_MEM_DST_REG, IWL49_RTC_INST_LOWER_BOUND); - iwl_legacy_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); - - /* Load bootstrap code into instruction SRAM now, - * to prepare to load "initialize" uCode */ - iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START); - - /* Wait for load of bootstrap uCode to finish */ - for (i = 0; i < 100; i++) { - done = iwl_legacy_read_prph(priv, BSM_WR_CTRL_REG); - if (!(done & BSM_WR_CTRL_REG_BIT_START)) - break; - udelay(10); - } - if (i < 100) - IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i); - else { - IWL_ERR(priv, "BSM write did not complete!\n"); - return -EIO; - } - - /* Enable future boot loads whenever power management unit triggers it - * (e.g. when powering back up after power-save shutdown) */ - iwl_legacy_write_prph(priv, - BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN); - - - return 0; -} - -/** - * iwl4965_set_ucode_ptrs - Set uCode address location - * - * Tell initialization uCode where to find runtime uCode. - * - * BSM registers initially contain pointers to initialization uCode. - * We need to replace them to load runtime uCode inst and data, - * and to save runtime data when powering down. - */ -static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv) -{ - dma_addr_t pinst; - dma_addr_t pdata; - int ret = 0; - - /* bits 35:4 for 4965 */ - pinst = priv->ucode_code.p_addr >> 4; - pdata = priv->ucode_data_backup.p_addr >> 4; - - /* Tell bootstrap uCode where to find image to load */ - iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, - priv->ucode_data.len); - - /* Inst byte count must be last to set up, bit 31 signals uCode - * that all new ptr/size info is in place */ - iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, - priv->ucode_code.len | BSM_DRAM_INST_LOAD); - IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n"); - - return ret; -} - -/** - * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received - * - * Called after REPLY_ALIVE notification received from "initialize" uCode. - * - * The 4965 "initialize" ALIVE reply contains calibration data for: - * Voltage, temperature, and MIMO tx gain correction, now stored in priv - * (3945 does not contain this data). - * - * Tell "initialize" uCode to go ahead and load the runtime uCode. -*/ -static void iwl4965_init_alive_start(struct iwl_priv *priv) -{ - /* Bootstrap uCode has loaded initialize uCode ... verify inst image. - * This is a paranoid check, because we would not have gotten the - * "initialize" alive if code weren't properly loaded. */ - if (iwl4965_verify_ucode(priv)) { - /* Runtime instruction load was bad; - * take it all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n"); - goto restart; - } - - /* Calculate temperature */ - priv->temperature = iwl4965_hw_get_temperature(priv); - - /* Send pointers to protocol/runtime uCode image ... init code will - * load and launch runtime uCode, which will send us another "Alive" - * notification. */ - IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); - if (iwl4965_set_ucode_ptrs(priv)) { - /* Runtime instruction load won't happen; - * take it all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n"); - goto restart; - } - return; - -restart: - queue_work(priv->workqueue, &priv->restart); -} - -static bool iw4965_is_ht40_channel(__le32 rxon_flags) -{ - int chan_mod = le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK) - >> RXON_FLG_CHANNEL_MODE_POS; - return ((chan_mod == CHANNEL_MODE_PURE_40) || - (chan_mod == CHANNEL_MODE_MIXED)); -} - -static void iwl4965_nic_config(struct iwl_priv *priv) -{ - unsigned long flags; - u16 radio_cfg; - - spin_lock_irqsave(&priv->lock, flags); - - radio_cfg = iwl_legacy_eeprom_query16(priv, EEPROM_RADIO_CONFIG); - - /* write radio config values to register */ - if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX) - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - EEPROM_RF_CFG_TYPE_MSK(radio_cfg) | - EEPROM_RF_CFG_STEP_MSK(radio_cfg) | - EEPROM_RF_CFG_DASH_MSK(radio_cfg)); - - /* set CSR_HW_CONFIG_REG for uCode use */ - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | - CSR_HW_IF_CONFIG_REG_BIT_MAC_SI); - - priv->calib_info = (struct iwl_eeprom_calib_info *) - iwl_legacy_eeprom_query_addr(priv, - EEPROM_4965_CALIB_TXPOWER_OFFSET); - - spin_unlock_irqrestore(&priv->lock, flags); -} - -/* Reset differential Rx gains in NIC to prepare for chain noise calibration. - * Called after every association, but this runs only once! - * ... once chain noise is calibrated the first time, it's good forever. */ -static void iwl4965_chain_noise_reset(struct iwl_priv *priv) -{ - struct iwl_chain_noise_data *data = &(priv->chain_noise_data); - - if ((data->state == IWL_CHAIN_NOISE_ALIVE) && - iwl_legacy_is_any_associated(priv)) { - struct iwl_calib_diff_gain_cmd cmd; - - /* clear data for chain noise calibration algorithm */ - data->chain_noise_a = 0; - data->chain_noise_b = 0; - data->chain_noise_c = 0; - data->chain_signal_a = 0; - data->chain_signal_b = 0; - data->chain_signal_c = 0; - data->beacon_count = 0; - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD; - cmd.diff_gain_a = 0; - cmd.diff_gain_b = 0; - cmd.diff_gain_c = 0; - if (iwl_legacy_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, - sizeof(cmd), &cmd)) - IWL_ERR(priv, - "Could not send REPLY_PHY_CALIBRATION_CMD\n"); - data->state = IWL_CHAIN_NOISE_ACCUMULATE; - IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n"); - } -} - -static struct iwl_sensitivity_ranges iwl4965_sensitivity = { - .min_nrg_cck = 97, - .max_nrg_cck = 0, /* not used, set to 0 */ - - .auto_corr_min_ofdm = 85, - .auto_corr_min_ofdm_mrc = 170, - .auto_corr_min_ofdm_x1 = 105, - .auto_corr_min_ofdm_mrc_x1 = 220, - - .auto_corr_max_ofdm = 120, - .auto_corr_max_ofdm_mrc = 210, - .auto_corr_max_ofdm_x1 = 140, - .auto_corr_max_ofdm_mrc_x1 = 270, - - .auto_corr_min_cck = 125, - .auto_corr_max_cck = 200, - .auto_corr_min_cck_mrc = 200, - .auto_corr_max_cck_mrc = 400, - - .nrg_th_cck = 100, - .nrg_th_ofdm = 100, - - .barker_corr_th_min = 190, - .barker_corr_th_min_mrc = 390, - .nrg_th_cca = 62, -}; - -static void iwl4965_set_ct_threshold(struct iwl_priv *priv) -{ - /* want Kelvin */ - priv->hw_params.ct_kill_threshold = - CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY); -} - -/** - * iwl4965_hw_set_hw_params - * - * Called when initializing driver - */ -static int iwl4965_hw_set_hw_params(struct iwl_priv *priv) -{ - if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES && - priv->cfg->mod_params->num_of_queues <= IWL49_NUM_QUEUES) - priv->cfg->base_params->num_of_queues = - priv->cfg->mod_params->num_of_queues; - - priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues; - priv->hw_params.dma_chnl_num = FH49_TCSR_CHNL_NUM; - priv->hw_params.scd_bc_tbls_size = - priv->cfg->base_params->num_of_queues * - sizeof(struct iwl4965_scd_bc_tbl); - priv->hw_params.tfd_size = sizeof(struct iwl_tfd); - priv->hw_params.max_stations = IWL4965_STATION_COUNT; - priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWL4965_BROADCAST_ID; - priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE; - priv->hw_params.max_inst_size = IWL49_RTC_INST_SIZE; - priv->hw_params.max_bsm_size = BSM_SRAM_SIZE; - priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_5GHZ); - - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; - - priv->hw_params.tx_chains_num = iwl4965_num_of_ant(priv->cfg->valid_tx_ant); - priv->hw_params.rx_chains_num = iwl4965_num_of_ant(priv->cfg->valid_rx_ant); - priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant; - priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant; - - iwl4965_set_ct_threshold(priv); - - priv->hw_params.sens = &iwl4965_sensitivity; - priv->hw_params.beacon_time_tsf_bits = IWL4965_EXT_BEACON_TIME_POS; - - return 0; -} - -static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 *res) -{ - s32 sign = 1; - - if (num < 0) { - sign = -sign; - num = -num; - } - if (denom < 0) { - sign = -sign; - denom = -denom; - } - *res = 1; - *res = ((num * 2 + denom) / (denom * 2)) * sign; - - return 1; -} - -/** - * iwl4965_get_voltage_compensation - Power supply voltage comp for txpower - * - * Determines power supply voltage compensation for txpower calculations. - * Returns number of 1/2-dB steps to subtract from gain table index, - * to compensate for difference between power supply voltage during - * factory measurements, vs. current power supply voltage. - * - * Voltage indication is higher for lower voltage. - * Lower voltage requires more gain (lower gain table index). - */ -static s32 iwl4965_get_voltage_compensation(s32 eeprom_voltage, - s32 current_voltage) -{ - s32 comp = 0; - - if ((TX_POWER_IWL_ILLEGAL_VOLTAGE == eeprom_voltage) || - (TX_POWER_IWL_ILLEGAL_VOLTAGE == current_voltage)) - return 0; - - iwl4965_math_div_round(current_voltage - eeprom_voltage, - TX_POWER_IWL_VOLTAGE_CODES_PER_03V, &comp); - - if (current_voltage > eeprom_voltage) - comp *= 2; - if ((comp < -2) || (comp > 2)) - comp = 0; - - return comp; -} - -static s32 iwl4965_get_tx_atten_grp(u16 channel) -{ - if (channel >= CALIB_IWL_TX_ATTEN_GR5_FCH && - channel <= CALIB_IWL_TX_ATTEN_GR5_LCH) - return CALIB_CH_GROUP_5; - - if (channel >= CALIB_IWL_TX_ATTEN_GR1_FCH && - channel <= CALIB_IWL_TX_ATTEN_GR1_LCH) - return CALIB_CH_GROUP_1; - - if (channel >= CALIB_IWL_TX_ATTEN_GR2_FCH && - channel <= CALIB_IWL_TX_ATTEN_GR2_LCH) - return CALIB_CH_GROUP_2; - - if (channel >= CALIB_IWL_TX_ATTEN_GR3_FCH && - channel <= CALIB_IWL_TX_ATTEN_GR3_LCH) - return CALIB_CH_GROUP_3; - - if (channel >= CALIB_IWL_TX_ATTEN_GR4_FCH && - channel <= CALIB_IWL_TX_ATTEN_GR4_LCH) - return CALIB_CH_GROUP_4; - - return -EINVAL; -} - -static u32 iwl4965_get_sub_band(const struct iwl_priv *priv, u32 channel) -{ - s32 b = -1; - - for (b = 0; b < EEPROM_TX_POWER_BANDS; b++) { - if (priv->calib_info->band_info[b].ch_from == 0) - continue; - - if ((channel >= priv->calib_info->band_info[b].ch_from) - && (channel <= priv->calib_info->band_info[b].ch_to)) - break; - } - - return b; -} - -static s32 iwl4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2) -{ - s32 val; - - if (x2 == x1) - return y1; - else { - iwl4965_math_div_round((x2 - x) * (y1 - y2), (x2 - x1), &val); - return val + y2; - } -} - -/** - * iwl4965_interpolate_chan - Interpolate factory measurements for one channel - * - * Interpolates factory measurements from the two sample channels within a - * sub-band, to apply to channel of interest. Interpolation is proportional to - * differences in channel frequencies, which is proportional to differences - * in channel number. - */ -static int iwl4965_interpolate_chan(struct iwl_priv *priv, u32 channel, - struct iwl_eeprom_calib_ch_info *chan_info) -{ - s32 s = -1; - u32 c; - u32 m; - const struct iwl_eeprom_calib_measure *m1; - const struct iwl_eeprom_calib_measure *m2; - struct iwl_eeprom_calib_measure *omeas; - u32 ch_i1; - u32 ch_i2; - - s = iwl4965_get_sub_band(priv, channel); - if (s >= EEPROM_TX_POWER_BANDS) { - IWL_ERR(priv, "Tx Power can not find channel %d\n", channel); - return -1; - } - - ch_i1 = priv->calib_info->band_info[s].ch1.ch_num; - ch_i2 = priv->calib_info->band_info[s].ch2.ch_num; - chan_info->ch_num = (u8) channel; - - IWL_DEBUG_TXPOWER(priv, "channel %d subband %d factory cal ch %d & %d\n", - channel, s, ch_i1, ch_i2); - - for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) { - for (m = 0; m < EEPROM_TX_POWER_MEASUREMENTS; m++) { - m1 = &(priv->calib_info->band_info[s].ch1. - measurements[c][m]); - m2 = &(priv->calib_info->band_info[s].ch2. - measurements[c][m]); - omeas = &(chan_info->measurements[c][m]); - - omeas->actual_pow = - (u8) iwl4965_interpolate_value(channel, ch_i1, - m1->actual_pow, - ch_i2, - m2->actual_pow); - omeas->gain_idx = - (u8) iwl4965_interpolate_value(channel, ch_i1, - m1->gain_idx, ch_i2, - m2->gain_idx); - omeas->temperature = - (u8) iwl4965_interpolate_value(channel, ch_i1, - m1->temperature, - ch_i2, - m2->temperature); - omeas->pa_det = - (s8) iwl4965_interpolate_value(channel, ch_i1, - m1->pa_det, ch_i2, - m2->pa_det); - - IWL_DEBUG_TXPOWER(priv, - "chain %d meas %d AP1=%d AP2=%d AP=%d\n", c, m, - m1->actual_pow, m2->actual_pow, omeas->actual_pow); - IWL_DEBUG_TXPOWER(priv, - "chain %d meas %d NI1=%d NI2=%d NI=%d\n", c, m, - m1->gain_idx, m2->gain_idx, omeas->gain_idx); - IWL_DEBUG_TXPOWER(priv, - "chain %d meas %d PA1=%d PA2=%d PA=%d\n", c, m, - m1->pa_det, m2->pa_det, omeas->pa_det); - IWL_DEBUG_TXPOWER(priv, - "chain %d meas %d T1=%d T2=%d T=%d\n", c, m, - m1->temperature, m2->temperature, - omeas->temperature); - } - } - - return 0; -} - -/* bit-rate-dependent table to prevent Tx distortion, in half-dB units, - * for OFDM 6, 12, 18, 24, 36, 48, 54, 60 MBit, and CCK all rates. */ -static s32 back_off_table[] = { - 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 20 MHz */ - 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 20 MHz */ - 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 40 MHz */ - 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 40 MHz */ - 10 /* CCK */ -}; - -/* Thermal compensation values for txpower for various frequency ranges ... - * ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */ -static struct iwl4965_txpower_comp_entry { - s32 degrees_per_05db_a; - s32 degrees_per_05db_a_denom; -} tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = { - {9, 2}, /* group 0 5.2, ch 34-43 */ - {4, 1}, /* group 1 5.2, ch 44-70 */ - {4, 1}, /* group 2 5.2, ch 71-124 */ - {4, 1}, /* group 3 5.2, ch 125-200 */ - {3, 1} /* group 4 2.4, ch all */ -}; - -static s32 get_min_power_index(s32 rate_power_index, u32 band) -{ - if (!band) { - if ((rate_power_index & 7) <= 4) - return MIN_TX_GAIN_INDEX_52GHZ_EXT; - } - return MIN_TX_GAIN_INDEX; -} - -struct gain_entry { - u8 dsp; - u8 radio; -}; - -static const struct gain_entry gain_table[2][108] = { - /* 5.2GHz power gain index table */ - { - {123, 0x3F}, /* highest txpower */ - {117, 0x3F}, - {110, 0x3F}, - {104, 0x3F}, - {98, 0x3F}, - {110, 0x3E}, - {104, 0x3E}, - {98, 0x3E}, - {110, 0x3D}, - {104, 0x3D}, - {98, 0x3D}, - {110, 0x3C}, - {104, 0x3C}, - {98, 0x3C}, - {110, 0x3B}, - {104, 0x3B}, - {98, 0x3B}, - {110, 0x3A}, - {104, 0x3A}, - {98, 0x3A}, - {110, 0x39}, - {104, 0x39}, - {98, 0x39}, - {110, 0x38}, - {104, 0x38}, - {98, 0x38}, - {110, 0x37}, - {104, 0x37}, - {98, 0x37}, - {110, 0x36}, - {104, 0x36}, - {98, 0x36}, - {110, 0x35}, - {104, 0x35}, - {98, 0x35}, - {110, 0x34}, - {104, 0x34}, - {98, 0x34}, - {110, 0x33}, - {104, 0x33}, - {98, 0x33}, - {110, 0x32}, - {104, 0x32}, - {98, 0x32}, - {110, 0x31}, - {104, 0x31}, - {98, 0x31}, - {110, 0x30}, - {104, 0x30}, - {98, 0x30}, - {110, 0x25}, - {104, 0x25}, - {98, 0x25}, - {110, 0x24}, - {104, 0x24}, - {98, 0x24}, - {110, 0x23}, - {104, 0x23}, - {98, 0x23}, - {110, 0x22}, - {104, 0x18}, - {98, 0x18}, - {110, 0x17}, - {104, 0x17}, - {98, 0x17}, - {110, 0x16}, - {104, 0x16}, - {98, 0x16}, - {110, 0x15}, - {104, 0x15}, - {98, 0x15}, - {110, 0x14}, - {104, 0x14}, - {98, 0x14}, - {110, 0x13}, - {104, 0x13}, - {98, 0x13}, - {110, 0x12}, - {104, 0x08}, - {98, 0x08}, - {110, 0x07}, - {104, 0x07}, - {98, 0x07}, - {110, 0x06}, - {104, 0x06}, - {98, 0x06}, - {110, 0x05}, - {104, 0x05}, - {98, 0x05}, - {110, 0x04}, - {104, 0x04}, - {98, 0x04}, - {110, 0x03}, - {104, 0x03}, - {98, 0x03}, - {110, 0x02}, - {104, 0x02}, - {98, 0x02}, - {110, 0x01}, - {104, 0x01}, - {98, 0x01}, - {110, 0x00}, - {104, 0x00}, - {98, 0x00}, - {93, 0x00}, - {88, 0x00}, - {83, 0x00}, - {78, 0x00}, - }, - /* 2.4GHz power gain index table */ - { - {110, 0x3f}, /* highest txpower */ - {104, 0x3f}, - {98, 0x3f}, - {110, 0x3e}, - {104, 0x3e}, - {98, 0x3e}, - {110, 0x3d}, - {104, 0x3d}, - {98, 0x3d}, - {110, 0x3c}, - {104, 0x3c}, - {98, 0x3c}, - {110, 0x3b}, - {104, 0x3b}, - {98, 0x3b}, - {110, 0x3a}, - {104, 0x3a}, - {98, 0x3a}, - {110, 0x39}, - {104, 0x39}, - {98, 0x39}, - {110, 0x38}, - {104, 0x38}, - {98, 0x38}, - {110, 0x37}, - {104, 0x37}, - {98, 0x37}, - {110, 0x36}, - {104, 0x36}, - {98, 0x36}, - {110, 0x35}, - {104, 0x35}, - {98, 0x35}, - {110, 0x34}, - {104, 0x34}, - {98, 0x34}, - {110, 0x33}, - {104, 0x33}, - {98, 0x33}, - {110, 0x32}, - {104, 0x32}, - {98, 0x32}, - {110, 0x31}, - {104, 0x31}, - {98, 0x31}, - {110, 0x30}, - {104, 0x30}, - {98, 0x30}, - {110, 0x6}, - {104, 0x6}, - {98, 0x6}, - {110, 0x5}, - {104, 0x5}, - {98, 0x5}, - {110, 0x4}, - {104, 0x4}, - {98, 0x4}, - {110, 0x3}, - {104, 0x3}, - {98, 0x3}, - {110, 0x2}, - {104, 0x2}, - {98, 0x2}, - {110, 0x1}, - {104, 0x1}, - {98, 0x1}, - {110, 0x0}, - {104, 0x0}, - {98, 0x0}, - {97, 0}, - {96, 0}, - {95, 0}, - {94, 0}, - {93, 0}, - {92, 0}, - {91, 0}, - {90, 0}, - {89, 0}, - {88, 0}, - {87, 0}, - {86, 0}, - {85, 0}, - {84, 0}, - {83, 0}, - {82, 0}, - {81, 0}, - {80, 0}, - {79, 0}, - {78, 0}, - {77, 0}, - {76, 0}, - {75, 0}, - {74, 0}, - {73, 0}, - {72, 0}, - {71, 0}, - {70, 0}, - {69, 0}, - {68, 0}, - {67, 0}, - {66, 0}, - {65, 0}, - {64, 0}, - {63, 0}, - {62, 0}, - {61, 0}, - {60, 0}, - {59, 0}, - } -}; - -static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel, - u8 is_ht40, u8 ctrl_chan_high, - struct iwl4965_tx_power_db *tx_power_tbl) -{ - u8 saturation_power; - s32 target_power; - s32 user_target_power; - s32 power_limit; - s32 current_temp; - s32 reg_limit; - s32 current_regulatory; - s32 txatten_grp = CALIB_CH_GROUP_MAX; - int i; - int c; - const struct iwl_channel_info *ch_info = NULL; - struct iwl_eeprom_calib_ch_info ch_eeprom_info; - const struct iwl_eeprom_calib_measure *measurement; - s16 voltage; - s32 init_voltage; - s32 voltage_compensation; - s32 degrees_per_05db_num; - s32 degrees_per_05db_denom; - s32 factory_temp; - s32 temperature_comp[2]; - s32 factory_gain_index[2]; - s32 factory_actual_pwr[2]; - s32 power_index; - - /* tx_power_user_lmt is in dBm, convert to half-dBm (half-dB units - * are used for indexing into txpower table) */ - user_target_power = 2 * priv->tx_power_user_lmt; - - /* Get current (RXON) channel, band, width */ - IWL_DEBUG_TXPOWER(priv, "chan %d band %d is_ht40 %d\n", channel, band, - is_ht40); - - ch_info = iwl_legacy_get_channel_info(priv, priv->band, channel); - - if (!iwl_legacy_is_channel_valid(ch_info)) - return -EINVAL; - - /* get txatten group, used to select 1) thermal txpower adjustment - * and 2) mimo txpower balance between Tx chains. */ - txatten_grp = iwl4965_get_tx_atten_grp(channel); - if (txatten_grp < 0) { - IWL_ERR(priv, "Can't find txatten group for channel %d.\n", - channel); - return txatten_grp; - } - - IWL_DEBUG_TXPOWER(priv, "channel %d belongs to txatten group %d\n", - channel, txatten_grp); - - if (is_ht40) { - if (ctrl_chan_high) - channel -= 2; - else - channel += 2; - } - - /* hardware txpower limits ... - * saturation (clipping distortion) txpowers are in half-dBm */ - if (band) - saturation_power = priv->calib_info->saturation_power24; - else - saturation_power = priv->calib_info->saturation_power52; - - if (saturation_power < IWL_TX_POWER_SATURATION_MIN || - saturation_power > IWL_TX_POWER_SATURATION_MAX) { - if (band) - saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_24; - else - saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_52; - } - - /* regulatory txpower limits ... reg_limit values are in half-dBm, - * max_power_avg values are in dBm, convert * 2 */ - if (is_ht40) - reg_limit = ch_info->ht40_max_power_avg * 2; - else - reg_limit = ch_info->max_power_avg * 2; - - if ((reg_limit < IWL_TX_POWER_REGULATORY_MIN) || - (reg_limit > IWL_TX_POWER_REGULATORY_MAX)) { - if (band) - reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_24; - else - reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_52; - } - - /* Interpolate txpower calibration values for this channel, - * based on factory calibration tests on spaced channels. */ - iwl4965_interpolate_chan(priv, channel, &ch_eeprom_info); - - /* calculate tx gain adjustment based on power supply voltage */ - voltage = le16_to_cpu(priv->calib_info->voltage); - init_voltage = (s32)le32_to_cpu(priv->card_alive_init.voltage); - voltage_compensation = - iwl4965_get_voltage_compensation(voltage, init_voltage); - - IWL_DEBUG_TXPOWER(priv, "curr volt %d eeprom volt %d volt comp %d\n", - init_voltage, - voltage, voltage_compensation); - - /* get current temperature (Celsius) */ - current_temp = max(priv->temperature, IWL_TX_POWER_TEMPERATURE_MIN); - current_temp = min(priv->temperature, IWL_TX_POWER_TEMPERATURE_MAX); - current_temp = KELVIN_TO_CELSIUS(current_temp); - - /* select thermal txpower adjustment params, based on channel group - * (same frequency group used for mimo txatten adjustment) */ - degrees_per_05db_num = - tx_power_cmp_tble[txatten_grp].degrees_per_05db_a; - degrees_per_05db_denom = - tx_power_cmp_tble[txatten_grp].degrees_per_05db_a_denom; - - /* get per-chain txpower values from factory measurements */ - for (c = 0; c < 2; c++) { - measurement = &ch_eeprom_info.measurements[c][1]; - - /* txgain adjustment (in half-dB steps) based on difference - * between factory and current temperature */ - factory_temp = measurement->temperature; - iwl4965_math_div_round((current_temp - factory_temp) * - degrees_per_05db_denom, - degrees_per_05db_num, - &temperature_comp[c]); - - factory_gain_index[c] = measurement->gain_idx; - factory_actual_pwr[c] = measurement->actual_pow; - - IWL_DEBUG_TXPOWER(priv, "chain = %d\n", c); - IWL_DEBUG_TXPOWER(priv, "fctry tmp %d, " - "curr tmp %d, comp %d steps\n", - factory_temp, current_temp, - temperature_comp[c]); - - IWL_DEBUG_TXPOWER(priv, "fctry idx %d, fctry pwr %d\n", - factory_gain_index[c], - factory_actual_pwr[c]); - } - - /* for each of 33 bit-rates (including 1 for CCK) */ - for (i = 0; i < POWER_TABLE_NUM_ENTRIES; i++) { - u8 is_mimo_rate; - union iwl4965_tx_power_dual_stream tx_power; - - /* for mimo, reduce each chain's txpower by half - * (3dB, 6 steps), so total output power is regulatory - * compliant. */ - if (i & 0x8) { - current_regulatory = reg_limit - - IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION; - is_mimo_rate = 1; - } else { - current_regulatory = reg_limit; - is_mimo_rate = 0; - } - - /* find txpower limit, either hardware or regulatory */ - power_limit = saturation_power - back_off_table[i]; - if (power_limit > current_regulatory) - power_limit = current_regulatory; - - /* reduce user's txpower request if necessary - * for this rate on this channel */ - target_power = user_target_power; - if (target_power > power_limit) - target_power = power_limit; - - IWL_DEBUG_TXPOWER(priv, "rate %d sat %d reg %d usr %d tgt %d\n", - i, saturation_power - back_off_table[i], - current_regulatory, user_target_power, - target_power); - - /* for each of 2 Tx chains (radio transmitters) */ - for (c = 0; c < 2; c++) { - s32 atten_value; - - if (is_mimo_rate) - atten_value = - (s32)le32_to_cpu(priv->card_alive_init. - tx_atten[txatten_grp][c]); - else - atten_value = 0; - - /* calculate index; higher index means lower txpower */ - power_index = (u8) (factory_gain_index[c] - - (target_power - - factory_actual_pwr[c]) - - temperature_comp[c] - - voltage_compensation + - atten_value); - -/* IWL_DEBUG_TXPOWER(priv, "calculated txpower index %d\n", - power_index); */ - - if (power_index < get_min_power_index(i, band)) - power_index = get_min_power_index(i, band); - - /* adjust 5 GHz index to support negative indexes */ - if (!band) - power_index += 9; - - /* CCK, rate 32, reduce txpower for CCK */ - if (i == POWER_TABLE_CCK_ENTRY) - power_index += - IWL_TX_POWER_CCK_COMPENSATION_C_STEP; - - /* stay within the table! */ - if (power_index > 107) { - IWL_WARN(priv, "txpower index %d > 107\n", - power_index); - power_index = 107; - } - if (power_index < 0) { - IWL_WARN(priv, "txpower index %d < 0\n", - power_index); - power_index = 0; - } - - /* fill txpower command for this rate/chain */ - tx_power.s.radio_tx_gain[c] = - gain_table[band][power_index].radio; - tx_power.s.dsp_predis_atten[c] = - gain_table[band][power_index].dsp; - - IWL_DEBUG_TXPOWER(priv, "chain %d mimo %d index %d " - "gain 0x%02x dsp %d\n", - c, atten_value, power_index, - tx_power.s.radio_tx_gain[c], - tx_power.s.dsp_predis_atten[c]); - } /* for each chain */ - - tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw); - - } /* for each rate */ - - return 0; -} - -/** - * iwl4965_send_tx_power - Configure the TXPOWER level user limit - * - * Uses the active RXON for channel, band, and characteristics (ht40, high) - * The power limit is taken from priv->tx_power_user_lmt. - */ -static int iwl4965_send_tx_power(struct iwl_priv *priv) -{ - struct iwl4965_txpowertable_cmd cmd = { 0 }; - int ret; - u8 band = 0; - bool is_ht40 = false; - u8 ctrl_chan_high = 0; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status), - "TX Power requested while scanning!\n")) - return -EAGAIN; - - band = priv->band == IEEE80211_BAND_2GHZ; - - is_ht40 = iw4965_is_ht40_channel(ctx->active.flags); - - if (is_ht40 && (ctx->active.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK)) - ctrl_chan_high = 1; - - cmd.band = band; - cmd.channel = ctx->active.channel; - - ret = iwl4965_fill_txpower_tbl(priv, band, - le16_to_cpu(ctx->active.channel), - is_ht40, ctrl_chan_high, &cmd.tx_power); - if (ret) - goto out; - - ret = iwl_legacy_send_cmd_pdu(priv, - REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd); - -out: - return ret; -} - -static int iwl4965_send_rxon_assoc(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - int ret = 0; - struct iwl4965_rxon_assoc_cmd rxon_assoc; - const struct iwl_legacy_rxon_cmd *rxon1 = &ctx->staging; - const struct iwl_legacy_rxon_cmd *rxon2 = &ctx->active; - - if ((rxon1->flags == rxon2->flags) && - (rxon1->filter_flags == rxon2->filter_flags) && - (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && - (rxon1->ofdm_ht_single_stream_basic_rates == - rxon2->ofdm_ht_single_stream_basic_rates) && - (rxon1->ofdm_ht_dual_stream_basic_rates == - rxon2->ofdm_ht_dual_stream_basic_rates) && - (rxon1->rx_chain == rxon2->rx_chain) && - (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { - IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); - return 0; - } - - rxon_assoc.flags = ctx->staging.flags; - rxon_assoc.filter_flags = ctx->staging.filter_flags; - rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates; - rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates; - rxon_assoc.reserved = 0; - rxon_assoc.ofdm_ht_single_stream_basic_rates = - ctx->staging.ofdm_ht_single_stream_basic_rates; - rxon_assoc.ofdm_ht_dual_stream_basic_rates = - ctx->staging.ofdm_ht_dual_stream_basic_rates; - rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain; - - ret = iwl_legacy_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC, - sizeof(rxon_assoc), &rxon_assoc, NULL); - - return ret; -} - -static int iwl4965_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - /* cast away the const for active_rxon in this function */ - struct iwl_legacy_rxon_cmd *active_rxon = (void *)&ctx->active; - int ret; - bool new_assoc = - !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK); - - if (!iwl_legacy_is_alive(priv)) - return -EBUSY; - - if (!ctx->is_active) - return 0; - - /* always get timestamp with Rx frame */ - ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK; - - ret = iwl_legacy_check_rxon_cmd(priv, ctx); - if (ret) { - IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); - return -EINVAL; - } - - /* - * receive commit_rxon request - * abort any previous channel switch if still in process - */ - if (test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status) && - (priv->switch_channel != ctx->staging.channel)) { - IWL_DEBUG_11H(priv, "abort channel switch on %d\n", - le16_to_cpu(priv->switch_channel)); - iwl_legacy_chswitch_done(priv, false); - } - - /* If we don't need to send a full RXON, we can use - * iwl_rxon_assoc_cmd which is used to reconfigure filter - * and other flags for the current radio configuration. */ - if (!iwl_legacy_full_rxon_required(priv, ctx)) { - ret = iwl_legacy_send_rxon_assoc(priv, ctx); - if (ret) { - IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret); - return ret; - } - - memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon)); - iwl_legacy_print_rx_config_cmd(priv, ctx); - /* - * We do not commit tx power settings while channel changing, - * do it now if tx power changed. - */ - iwl_legacy_set_tx_power(priv, priv->tx_power_next, false); - return 0; - } - - /* If we are currently associated and the new config requires - * an RXON_ASSOC and the new config wants the associated mask enabled, - * we must clear the associated from the active configuration - * before we apply the new config */ - if (iwl_legacy_is_associated_ctx(ctx) && new_assoc) { - IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n"); - active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; - - ret = iwl_legacy_send_cmd_pdu(priv, ctx->rxon_cmd, - sizeof(struct iwl_legacy_rxon_cmd), - active_rxon); - - /* If the mask clearing failed then we set - * active_rxon back to what it was previously */ - if (ret) { - active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; - IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret); - return ret; - } - iwl_legacy_clear_ucode_stations(priv, ctx); - iwl_legacy_restore_stations(priv, ctx); - ret = iwl4965_restore_default_wep_keys(priv, ctx); - if (ret) { - IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret); - return ret; - } - } - - IWL_DEBUG_INFO(priv, "Sending RXON\n" - "* with%s RXON_FILTER_ASSOC_MSK\n" - "* channel = %d\n" - "* bssid = %pM\n", - (new_assoc ? "" : "out"), - le16_to_cpu(ctx->staging.channel), - ctx->staging.bssid_addr); - - iwl_legacy_set_rxon_hwcrypto(priv, ctx, - !priv->cfg->mod_params->sw_crypto); - - /* Apply the new configuration - * RXON unassoc clears the station table in uCode so restoration of - * stations is needed after it (the RXON command) completes - */ - if (!new_assoc) { - ret = iwl_legacy_send_cmd_pdu(priv, ctx->rxon_cmd, - sizeof(struct iwl_legacy_rxon_cmd), &ctx->staging); - if (ret) { - IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); - return ret; - } - IWL_DEBUG_INFO(priv, "Return from !new_assoc RXON.\n"); - memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon)); - iwl_legacy_clear_ucode_stations(priv, ctx); - iwl_legacy_restore_stations(priv, ctx); - ret = iwl4965_restore_default_wep_keys(priv, ctx); - if (ret) { - IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret); - return ret; - } - } - if (new_assoc) { - priv->start_calib = 0; - /* Apply the new configuration - * RXON assoc doesn't clear the station table in uCode, - */ - ret = iwl_legacy_send_cmd_pdu(priv, ctx->rxon_cmd, - sizeof(struct iwl_legacy_rxon_cmd), &ctx->staging); - if (ret) { - IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); - return ret; - } - memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon)); - } - iwl_legacy_print_rx_config_cmd(priv, ctx); - - iwl4965_init_sensitivity(priv); - - /* If we issue a new RXON command which required a tune then we must - * send a new TXPOWER command or we won't be able to Tx any frames */ - ret = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true); - if (ret) { - IWL_ERR(priv, "Error sending TX power (%d)\n", ret); - return ret; - } - - return 0; -} - -static int iwl4965_hw_channel_switch(struct iwl_priv *priv, - struct ieee80211_channel_switch *ch_switch) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - int rc; - u8 band = 0; - bool is_ht40 = false; - u8 ctrl_chan_high = 0; - struct iwl4965_channel_switch_cmd cmd; - const struct iwl_channel_info *ch_info; - u32 switch_time_in_usec, ucode_switch_time; - u16 ch; - u32 tsf_low; - u8 switch_count; - u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval); - struct ieee80211_vif *vif = ctx->vif; - band = priv->band == IEEE80211_BAND_2GHZ; - - is_ht40 = iw4965_is_ht40_channel(ctx->staging.flags); - - if (is_ht40 && - (ctx->staging.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK)) - ctrl_chan_high = 1; - - cmd.band = band; - cmd.expect_beacon = 0; - ch = ch_switch->channel->hw_value; - cmd.channel = cpu_to_le16(ch); - cmd.rxon_flags = ctx->staging.flags; - cmd.rxon_filter_flags = ctx->staging.filter_flags; - switch_count = ch_switch->count; - tsf_low = ch_switch->timestamp & 0x0ffffffff; - /* - * calculate the ucode channel switch time - * adding TSF as one of the factor for when to switch - */ - if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) { - if (switch_count > ((priv->ucode_beacon_time - tsf_low) / - beacon_interval)) { - switch_count -= (priv->ucode_beacon_time - - tsf_low) / beacon_interval; - } else - switch_count = 0; - } - if (switch_count <= 1) - cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time); - else { - switch_time_in_usec = - vif->bss_conf.beacon_int * switch_count * TIME_UNIT; - ucode_switch_time = iwl_legacy_usecs_to_beacons(priv, - switch_time_in_usec, - beacon_interval); - cmd.switch_time = iwl_legacy_add_beacon_time(priv, - priv->ucode_beacon_time, - ucode_switch_time, - beacon_interval); - } - IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n", - cmd.switch_time); - ch_info = iwl_legacy_get_channel_info(priv, priv->band, ch); - if (ch_info) - cmd.expect_beacon = iwl_legacy_is_channel_radar(ch_info); - else { - IWL_ERR(priv, "invalid channel switch from %u to %u\n", - ctx->active.channel, ch); - return -EFAULT; - } - - rc = iwl4965_fill_txpower_tbl(priv, band, ch, is_ht40, - ctrl_chan_high, &cmd.tx_power); - if (rc) { - IWL_DEBUG_11H(priv, "error:%d fill txpower_tbl\n", rc); - return rc; - } - - return iwl_legacy_send_cmd_pdu(priv, - REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd); -} - -/** - * iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array - */ -static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - u16 byte_cnt) -{ - struct iwl4965_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; - int txq_id = txq->q.id; - int write_ptr = txq->q.write_ptr; - int len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; - __le16 bc_ent; - - WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); - - bc_ent = cpu_to_le16(len & 0xFFF); - /* Set up byte count within first 256 entries */ - scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent; - - /* If within first 64 entries, duplicate at end */ - if (write_ptr < TFD_QUEUE_SIZE_BC_DUP) - scd_bc_tbl[txq_id]. - tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; -} - -/** - * iwl4965_hw_get_temperature - return the calibrated temperature (in Kelvin) - * @statistics: Provides the temperature reading from the uCode - * - * A return of <0 indicates bogus data in the statistics - */ -static int iwl4965_hw_get_temperature(struct iwl_priv *priv) -{ - s32 temperature; - s32 vt; - s32 R1, R2, R3; - u32 R4; - - if (test_bit(STATUS_TEMPERATURE, &priv->status) && - (priv->_4965.statistics.flag & - STATISTICS_REPLY_FLG_HT40_MODE_MSK)) { - IWL_DEBUG_TEMP(priv, "Running HT40 temperature calibration\n"); - R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]); - R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]); - R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]); - R4 = le32_to_cpu(priv->card_alive_init.therm_r4[1]); - } else { - IWL_DEBUG_TEMP(priv, "Running temperature calibration\n"); - R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[0]); - R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[0]); - R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[0]); - R4 = le32_to_cpu(priv->card_alive_init.therm_r4[0]); - } - - /* - * Temperature is only 23 bits, so sign extend out to 32. - * - * NOTE If we haven't received a statistics notification yet - * with an updated temperature, use R4 provided to us in the - * "initialize" ALIVE response. - */ - if (!test_bit(STATUS_TEMPERATURE, &priv->status)) - vt = sign_extend32(R4, 23); - else - vt = sign_extend32(le32_to_cpu(priv->_4965.statistics. - general.common.temperature), 23); - - IWL_DEBUG_TEMP(priv, "Calib values R[1-3]: %d %d %d R4: %d\n", R1, R2, R3, vt); - - if (R3 == R1) { - IWL_ERR(priv, "Calibration conflict R1 == R3\n"); - return -1; - } - - /* Calculate temperature in degrees Kelvin, adjust by 97%. - * Add offset to center the adjustment around 0 degrees Centigrade. */ - temperature = TEMPERATURE_CALIB_A_VAL * (vt - R2); - temperature /= (R3 - R1); - temperature = (temperature * 97) / 100 + TEMPERATURE_CALIB_KELVIN_OFFSET; - - IWL_DEBUG_TEMP(priv, "Calibrated temperature: %dK, %dC\n", - temperature, KELVIN_TO_CELSIUS(temperature)); - - return temperature; -} - -/* Adjust Txpower only if temperature variance is greater than threshold. */ -#define IWL_TEMPERATURE_THRESHOLD 3 - -/** - * iwl4965_is_temp_calib_needed - determines if new calibration is needed - * - * If the temperature changed has changed sufficiently, then a recalibration - * is needed. - * - * Assumes caller will replace priv->last_temperature once calibration - * executed. - */ -static int iwl4965_is_temp_calib_needed(struct iwl_priv *priv) -{ - int temp_diff; - - if (!test_bit(STATUS_STATISTICS, &priv->status)) { - IWL_DEBUG_TEMP(priv, "Temperature not updated -- no statistics.\n"); - return 0; - } - - temp_diff = priv->temperature - priv->last_temperature; - - /* get absolute value */ - if (temp_diff < 0) { - IWL_DEBUG_POWER(priv, "Getting cooler, delta %d\n", temp_diff); - temp_diff = -temp_diff; - } else if (temp_diff == 0) - IWL_DEBUG_POWER(priv, "Temperature unchanged\n"); - else - IWL_DEBUG_POWER(priv, "Getting warmer, delta %d\n", temp_diff); - - if (temp_diff < IWL_TEMPERATURE_THRESHOLD) { - IWL_DEBUG_POWER(priv, " => thermal txpower calib not needed\n"); - return 0; - } - - IWL_DEBUG_POWER(priv, " => thermal txpower calib needed\n"); - - return 1; -} - -static void iwl4965_temperature_calib(struct iwl_priv *priv) -{ - s32 temp; - - temp = iwl4965_hw_get_temperature(priv); - if (IWL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(temp)) - return; - - if (priv->temperature != temp) { - if (priv->temperature) - IWL_DEBUG_TEMP(priv, "Temperature changed " - "from %dC to %dC\n", - KELVIN_TO_CELSIUS(priv->temperature), - KELVIN_TO_CELSIUS(temp)); - else - IWL_DEBUG_TEMP(priv, "Temperature " - "initialized to %dC\n", - KELVIN_TO_CELSIUS(temp)); - } - - priv->temperature = temp; - set_bit(STATUS_TEMPERATURE, &priv->status); - - if (!priv->disable_tx_power_cal && - unlikely(!test_bit(STATUS_SCANNING, &priv->status)) && - iwl4965_is_temp_calib_needed(priv)) - queue_work(priv->workqueue, &priv->txpower_work); -} - -static u16 iwl4965_get_hcmd_size(u8 cmd_id, u16 len) -{ - switch (cmd_id) { - case REPLY_RXON: - return (u16) sizeof(struct iwl4965_rxon_cmd); - default: - return len; - } -} - -static u16 iwl4965_build_addsta_hcmd(const struct iwl_legacy_addsta_cmd *cmd, - u8 *data) -{ - struct iwl4965_addsta_cmd *addsta = (struct iwl4965_addsta_cmd *)data; - addsta->mode = cmd->mode; - memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify)); - memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo)); - addsta->station_flags = cmd->station_flags; - addsta->station_flags_msk = cmd->station_flags_msk; - addsta->tid_disable_tx = cmd->tid_disable_tx; - addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid; - addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid; - addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn; - addsta->sleep_tx_count = cmd->sleep_tx_count; - addsta->reserved1 = cpu_to_le16(0); - addsta->reserved2 = cpu_to_le16(0); - - return (u16)sizeof(struct iwl4965_addsta_cmd); -} - -static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp) -{ - return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN; -} - -/** - * iwl4965_tx_status_reply_tx - Handle Tx response for frames in aggregation queue - */ -static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, - struct iwl_ht_agg *agg, - struct iwl4965_tx_resp *tx_resp, - int txq_id, u16 start_idx) -{ - u16 status; - struct agg_tx_status *frame_status = tx_resp->u.agg_status; - struct ieee80211_tx_info *info = NULL; - struct ieee80211_hdr *hdr = NULL; - u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); - int i, sh, idx; - u16 seq; - if (agg->wait_for_ba) - IWL_DEBUG_TX_REPLY(priv, "got tx response w/o block-ack\n"); - - agg->frame_count = tx_resp->frame_count; - agg->start_idx = start_idx; - agg->rate_n_flags = rate_n_flags; - agg->bitmap = 0; - - /* num frames attempted by Tx command */ - if (agg->frame_count == 1) { - /* Only one frame was attempted; no block-ack will arrive */ - status = le16_to_cpu(frame_status[0].status); - idx = start_idx; - - IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, StartIdx=%d idx=%d\n", - agg->frame_count, agg->start_idx, idx); - - info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb); - info->status.rates[0].count = tx_resp->failure_frame + 1; - info->flags &= ~IEEE80211_TX_CTL_AMPDU; - info->flags |= iwl4965_tx_status_to_mac80211(status); - iwl4965_hwrate_to_tx_control(priv, rate_n_flags, info); - - IWL_DEBUG_TX_REPLY(priv, "1 Frame 0x%x failure :%d\n", - status & 0xff, tx_resp->failure_frame); - IWL_DEBUG_TX_REPLY(priv, "Rate Info rate_n_flags=%x\n", rate_n_flags); - - agg->wait_for_ba = 0; - } else { - /* Two or more frames were attempted; expect block-ack */ - u64 bitmap = 0; - int start = agg->start_idx; - - /* Construct bit-map of pending frames within Tx window */ - for (i = 0; i < agg->frame_count; i++) { - u16 sc; - status = le16_to_cpu(frame_status[i].status); - seq = le16_to_cpu(frame_status[i].sequence); - idx = SEQ_TO_INDEX(seq); - txq_id = SEQ_TO_QUEUE(seq); - - if (status & (AGG_TX_STATE_FEW_BYTES_MSK | - AGG_TX_STATE_ABORT_MSK)) - continue; - - IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, txq_id=%d idx=%d\n", - agg->frame_count, txq_id, idx); - - hdr = iwl_legacy_tx_queue_get_hdr(priv, txq_id, idx); - if (!hdr) { - IWL_ERR(priv, - "BUG_ON idx doesn't point to valid skb" - " idx=%d, txq_id=%d\n", idx, txq_id); - return -1; - } - - sc = le16_to_cpu(hdr->seq_ctrl); - if (idx != (SEQ_TO_SN(sc) & 0xff)) { - IWL_ERR(priv, - "BUG_ON idx doesn't match seq control" - " idx=%d, seq_idx=%d, seq=%d\n", - idx, SEQ_TO_SN(sc), hdr->seq_ctrl); - return -1; - } - - IWL_DEBUG_TX_REPLY(priv, "AGG Frame i=%d idx %d seq=%d\n", - i, idx, SEQ_TO_SN(sc)); - - sh = idx - start; - if (sh > 64) { - sh = (start - idx) + 0xff; - bitmap = bitmap << sh; - sh = 0; - start = idx; - } else if (sh < -64) - sh = 0xff - (start - idx); - else if (sh < 0) { - sh = start - idx; - start = idx; - bitmap = bitmap << sh; - sh = 0; - } - bitmap |= 1ULL << sh; - IWL_DEBUG_TX_REPLY(priv, "start=%d bitmap=0x%llx\n", - start, (unsigned long long)bitmap); - } - - agg->bitmap = bitmap; - agg->start_idx = start; - IWL_DEBUG_TX_REPLY(priv, "Frames %d start_idx=%d bitmap=0x%llx\n", - agg->frame_count, agg->start_idx, - (unsigned long long)agg->bitmap); - - if (bitmap) - agg->wait_for_ba = 1; - } - return 0; -} - -static u8 iwl4965_find_station(struct iwl_priv *priv, const u8 *addr) -{ - int i; - int start = 0; - int ret = IWL_INVALID_STATION; - unsigned long flags; - - if ((priv->iw_mode == NL80211_IFTYPE_ADHOC)) - start = IWL_STA_ID; - - if (is_broadcast_ether_addr(addr)) - return priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id; - - spin_lock_irqsave(&priv->sta_lock, flags); - for (i = start; i < priv->hw_params.max_stations; i++) - if (priv->stations[i].used && - (!compare_ether_addr(priv->stations[i].sta.sta.addr, - addr))) { - ret = i; - goto out; - } - - IWL_DEBUG_ASSOC_LIMIT(priv, "can not find STA %pM total %d\n", - addr, priv->num_stations); - - out: - /* - * It may be possible that more commands interacting with stations - * arrive before we completed processing the adding of - * station - */ - if (ret != IWL_INVALID_STATION && - (!(priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) || - ((priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) && - (priv->stations[ret].used & IWL_STA_UCODE_INPROGRESS)))) { - IWL_ERR(priv, "Requested station info for sta %d before ready.\n", - ret); - ret = IWL_INVALID_STATION; - } - spin_unlock_irqrestore(&priv->sta_lock, flags); - return ret; -} - -static int iwl4965_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) -{ - if (priv->iw_mode == NL80211_IFTYPE_STATION) { - return IWL_AP_ID; - } else { - u8 *da = ieee80211_get_DA(hdr); - return iwl4965_find_station(priv, da); - } -} - -/** - * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response - */ -static void iwl4965_rx_reply_tx(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - u16 sequence = le16_to_cpu(pkt->hdr.sequence); - int txq_id = SEQ_TO_QUEUE(sequence); - int index = SEQ_TO_INDEX(sequence); - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct ieee80211_hdr *hdr; - struct ieee80211_tx_info *info; - struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; - u32 status = le32_to_cpu(tx_resp->u.status); - int uninitialized_var(tid); - int sta_id; - int freed; - u8 *qc = NULL; - unsigned long flags; - - if ((index >= txq->q.n_bd) || (iwl_legacy_queue_used(&txq->q, index) == 0)) { - IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d " - "is out of range [0-%d] %d %d\n", txq_id, - index, txq->q.n_bd, txq->q.write_ptr, - txq->q.read_ptr); - return; - } - - txq->time_stamp = jiffies; - info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb); - memset(&info->status, 0, sizeof(info->status)); - - hdr = iwl_legacy_tx_queue_get_hdr(priv, txq_id, index); - if (ieee80211_is_data_qos(hdr->frame_control)) { - qc = ieee80211_get_qos_ctl(hdr); - tid = qc[0] & 0xf; - } - - sta_id = iwl4965_get_ra_sta_id(priv, hdr); - if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) { - IWL_ERR(priv, "Station not known\n"); - return; - } - - spin_lock_irqsave(&priv->sta_lock, flags); - if (txq->sched_retry) { - const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp); - struct iwl_ht_agg *agg = NULL; - WARN_ON(!qc); - - agg = &priv->stations[sta_id].tid[tid].agg; - - iwl4965_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index); - - /* check if BAR is needed */ - if ((tx_resp->frame_count == 1) && !iwl4965_is_tx_success(status)) - info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; - - if (txq->q.read_ptr != (scd_ssn & 0xff)) { - index = iwl_legacy_queue_dec_wrap(scd_ssn & 0xff, - txq->q.n_bd); - IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn " - "%d index %d\n", scd_ssn , index); - freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); - if (qc) - iwl4965_free_tfds_in_queue(priv, sta_id, - tid, freed); - - if (priv->mac80211_registered && - (iwl_legacy_queue_space(&txq->q) > txq->q.low_mark) - && (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) - iwl_legacy_wake_queue(priv, txq); - } - } else { - info->status.rates[0].count = tx_resp->failure_frame + 1; - info->flags |= iwl4965_tx_status_to_mac80211(status); - iwl4965_hwrate_to_tx_control(priv, - le32_to_cpu(tx_resp->rate_n_flags), - info); - - IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x) " - "rate_n_flags 0x%x retries %d\n", - txq_id, - iwl4965_get_tx_fail_reason(status), status, - le32_to_cpu(tx_resp->rate_n_flags), - tx_resp->failure_frame); - - freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); - if (qc && likely(sta_id != IWL_INVALID_STATION)) - iwl4965_free_tfds_in_queue(priv, sta_id, tid, freed); - else if (sta_id == IWL_INVALID_STATION) - IWL_DEBUG_TX_REPLY(priv, "Station not known\n"); - - if (priv->mac80211_registered && - (iwl_legacy_queue_space(&txq->q) > txq->q.low_mark)) - iwl_legacy_wake_queue(priv, txq); - } - if (qc && likely(sta_id != IWL_INVALID_STATION)) - iwl4965_txq_check_empty(priv, sta_id, tid, txq_id); - - iwl4965_check_abort_status(priv, tx_resp->frame_count, status); - - spin_unlock_irqrestore(&priv->sta_lock, flags); -} - -static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl4965_beacon_notif *beacon = (void *)pkt->u.raw; - u8 rate __maybe_unused = - iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); - - IWL_DEBUG_RX(priv, "beacon status %#x, retries:%d ibssmgr:%d " - "tsf:0x%.8x%.8x rate:%d\n", - le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, - beacon->beacon_notify_hdr.failure_frame, - le32_to_cpu(beacon->ibss_mgr_status), - le32_to_cpu(beacon->high_tsf), - le32_to_cpu(beacon->low_tsf), rate); - - priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); -} - -/* Set up 4965-specific Rx frame reply handlers */ -static void iwl4965_rx_handler_setup(struct iwl_priv *priv) -{ - /* Legacy Rx frames */ - priv->rx_handlers[REPLY_RX] = iwl4965_rx_reply_rx; - /* Tx response */ - priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx; - priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif; -} - -static struct iwl_hcmd_ops iwl4965_hcmd = { - .rxon_assoc = iwl4965_send_rxon_assoc, - .commit_rxon = iwl4965_commit_rxon, - .set_rxon_chain = iwl4965_set_rxon_chain, -}; - -static void iwl4965_post_scan(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - /* - * Since setting the RXON may have been deferred while - * performing the scan, fire one off if needed - */ - if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) - iwl_legacy_commit_rxon(priv, ctx); -} - -static void iwl4965_post_associate(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - struct ieee80211_vif *vif = ctx->vif; - struct ieee80211_conf *conf = NULL; - int ret = 0; - - if (!vif || !priv->is_open) - return; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - iwl_legacy_scan_cancel_timeout(priv, 200); - - conf = iwl_legacy_ieee80211_get_hw_conf(priv->hw); - - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwl_legacy_commit_rxon(priv, ctx); - - ret = iwl_legacy_send_rxon_timing(priv, ctx); - if (ret) - IWL_WARN(priv, "RXON timing - " - "Attempting to continue.\n"); - - ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; - - iwl_legacy_set_rxon_ht(priv, &priv->current_ht_config); - - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - - ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid); - - IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", - vif->bss_conf.aid, vif->bss_conf.beacon_int); - - if (vif->bss_conf.use_short_preamble) - ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; - else - ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; - - if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { - if (vif->bss_conf.use_short_slot) - ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; - else - ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; - } - - iwl_legacy_commit_rxon(priv, ctx); - - IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", - vif->bss_conf.aid, ctx->active.bssid_addr); - - switch (vif->type) { - case NL80211_IFTYPE_STATION: - break; - case NL80211_IFTYPE_ADHOC: - iwl4965_send_beacon_cmd(priv); - break; - default: - IWL_ERR(priv, "%s Should not be called in %d mode\n", - __func__, vif->type); - break; - } - - /* the chain noise calibration will enabled PM upon completion - * If chain noise has already been run, then we need to enable - * power management here */ - if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) - iwl_legacy_power_update_mode(priv, false); - - /* Enable Rx differential gain and sensitivity calibrations */ - iwl4965_chain_noise_reset(priv); - priv->start_calib = 1; -} - -static void iwl4965_config_ap(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - struct ieee80211_vif *vif = ctx->vif; - int ret = 0; - - lockdep_assert_held(&priv->mutex); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - /* The following should be done only at AP bring up */ - if (!iwl_legacy_is_associated_ctx(ctx)) { - - /* RXON - unassoc (to set timing command) */ - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwl_legacy_commit_rxon(priv, ctx); - - /* RXON Timing */ - ret = iwl_legacy_send_rxon_timing(priv, ctx); - if (ret) - IWL_WARN(priv, "RXON timing failed - " - "Attempting to continue.\n"); - - /* AP has all antennas */ - priv->chain_noise_data.active_chains = - priv->hw_params.valid_rx_ant; - iwl_legacy_set_rxon_ht(priv, &priv->current_ht_config); - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - - ctx->staging.assoc_id = 0; - - if (vif->bss_conf.use_short_preamble) - ctx->staging.flags |= - RXON_FLG_SHORT_PREAMBLE_MSK; - else - ctx->staging.flags &= - ~RXON_FLG_SHORT_PREAMBLE_MSK; - - if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { - if (vif->bss_conf.use_short_slot) - ctx->staging.flags |= - RXON_FLG_SHORT_SLOT_MSK; - else - ctx->staging.flags &= - ~RXON_FLG_SHORT_SLOT_MSK; - } - /* need to send beacon cmd before committing assoc RXON! */ - iwl4965_send_beacon_cmd(priv); - /* restore RXON assoc */ - ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; - iwl_legacy_commit_rxon(priv, ctx); - } - iwl4965_send_beacon_cmd(priv); -} - -static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = { - .get_hcmd_size = iwl4965_get_hcmd_size, - .build_addsta_hcmd = iwl4965_build_addsta_hcmd, - .request_scan = iwl4965_request_scan, - .post_scan = iwl4965_post_scan, -}; - -static struct iwl_lib_ops iwl4965_lib = { - .set_hw_params = iwl4965_hw_set_hw_params, - .txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl, - .txq_attach_buf_to_tfd = iwl4965_hw_txq_attach_buf_to_tfd, - .txq_free_tfd = iwl4965_hw_txq_free_tfd, - .txq_init = iwl4965_hw_tx_queue_init, - .rx_handler_setup = iwl4965_rx_handler_setup, - .is_valid_rtc_data_addr = iwl4965_hw_valid_rtc_data_addr, - .init_alive_start = iwl4965_init_alive_start, - .load_ucode = iwl4965_load_bsm, - .dump_nic_error_log = iwl4965_dump_nic_error_log, - .dump_fh = iwl4965_dump_fh, - .set_channel_switch = iwl4965_hw_channel_switch, - .apm_ops = { - .init = iwl_legacy_apm_init, - .config = iwl4965_nic_config, - }, - .eeprom_ops = { - .regulatory_bands = { - EEPROM_REGULATORY_BAND_1_CHANNELS, - EEPROM_REGULATORY_BAND_2_CHANNELS, - EEPROM_REGULATORY_BAND_3_CHANNELS, - EEPROM_REGULATORY_BAND_4_CHANNELS, - EEPROM_REGULATORY_BAND_5_CHANNELS, - EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS, - EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS - }, - .acquire_semaphore = iwl4965_eeprom_acquire_semaphore, - .release_semaphore = iwl4965_eeprom_release_semaphore, - }, - .send_tx_power = iwl4965_send_tx_power, - .update_chain_flags = iwl4965_update_chain_flags, - .temp_ops = { - .temperature = iwl4965_temperature_calib, - }, - .debugfs_ops = { - .rx_stats_read = iwl4965_ucode_rx_stats_read, - .tx_stats_read = iwl4965_ucode_tx_stats_read, - .general_stats_read = iwl4965_ucode_general_stats_read, - }, -}; - -static const struct iwl_legacy_ops iwl4965_legacy_ops = { - .post_associate = iwl4965_post_associate, - .config_ap = iwl4965_config_ap, - .manage_ibss_station = iwl4965_manage_ibss_station, - .update_bcast_stations = iwl4965_update_bcast_stations, -}; - -struct ieee80211_ops iwl4965_hw_ops = { - .tx = iwl4965_mac_tx, - .start = iwl4965_mac_start, - .stop = iwl4965_mac_stop, - .add_interface = iwl_legacy_mac_add_interface, - .remove_interface = iwl_legacy_mac_remove_interface, - .change_interface = iwl_legacy_mac_change_interface, - .config = iwl_legacy_mac_config, - .configure_filter = iwl4965_configure_filter, - .set_key = iwl4965_mac_set_key, - .update_tkip_key = iwl4965_mac_update_tkip_key, - .conf_tx = iwl_legacy_mac_conf_tx, - .reset_tsf = iwl_legacy_mac_reset_tsf, - .bss_info_changed = iwl_legacy_mac_bss_info_changed, - .ampdu_action = iwl4965_mac_ampdu_action, - .hw_scan = iwl_legacy_mac_hw_scan, - .sta_add = iwl4965_mac_sta_add, - .sta_remove = iwl_legacy_mac_sta_remove, - .channel_switch = iwl4965_mac_channel_switch, - .tx_last_beacon = iwl_legacy_mac_tx_last_beacon, -}; - -static const struct iwl_ops iwl4965_ops = { - .lib = &iwl4965_lib, - .hcmd = &iwl4965_hcmd, - .utils = &iwl4965_hcmd_utils, - .led = &iwl4965_led_ops, - .legacy = &iwl4965_legacy_ops, - .ieee80211_ops = &iwl4965_hw_ops, -}; - -static struct iwl_base_params iwl4965_base_params = { - .eeprom_size = IWL4965_EEPROM_IMG_SIZE, - .num_of_queues = IWL49_NUM_QUEUES, - .num_of_ampdu_queues = IWL49_NUM_AMPDU_QUEUES, - .pll_cfg_val = 0, - .set_l0s = true, - .use_bsm = true, - .led_compensation = 61, - .chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS, - .wd_timeout = IWL_DEF_WD_TIMEOUT, - .temperature_kelvin = true, - .ucode_tracing = true, - .sensitivity_calib_by_driver = true, - .chain_noise_calib_by_driver = true, -}; - -struct iwl_cfg iwl4965_cfg = { - .name = "Intel(R) Wireless WiFi Link 4965AGN", - .fw_name_pre = IWL4965_FW_PRE, - .ucode_api_max = IWL4965_UCODE_API_MAX, - .ucode_api_min = IWL4965_UCODE_API_MIN, - .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, - .valid_tx_ant = ANT_AB, - .valid_rx_ant = ANT_ABC, - .eeprom_ver = EEPROM_4965_EEPROM_VERSION, - .eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION, - .ops = &iwl4965_ops, - .mod_params = &iwl4965_mod_params, - .base_params = &iwl4965_base_params, - .led_mode = IWL_LED_BLINK, - /* - * Force use of chains B and C for scan RX on 5 GHz band - * because the device has off-channel reception on chain A. - */ - .scan_rx_antennas[IEEE80211_BAND_5GHZ] = ANT_BC, -}; - -/* Module firmware */ -MODULE_FIRMWARE(IWL4965_MODULE_FIRMWARE(IWL4965_UCODE_API_MAX)); diff --git a/drivers/net/wireless/iwlegacy/iwl-4965.h b/drivers/net/wireless/iwlegacy/iwl-4965.h deleted file mode 100644 index 01f8163daf16..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-4965.h +++ /dev/null @@ -1,282 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - *****************************************************************************/ - -#ifndef __iwl_4965_h__ -#define __iwl_4965_h__ - -#include "iwl-dev.h" - -/* configuration for the _4965 devices */ -extern struct iwl_cfg iwl4965_cfg; - -extern struct iwl_mod_params iwl4965_mod_params; - -extern struct ieee80211_ops iwl4965_hw_ops; - -/* tx queue */ -void iwl4965_free_tfds_in_queue(struct iwl_priv *priv, - int sta_id, int tid, int freed); - -/* RXON */ -void iwl4965_set_rxon_chain(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); - -/* uCode */ -int iwl4965_verify_ucode(struct iwl_priv *priv); - -/* lib */ -void iwl4965_check_abort_status(struct iwl_priv *priv, - u8 frame_count, u32 status); - -void iwl4965_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq); -int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq); -int iwl4965_hw_nic_init(struct iwl_priv *priv); -int iwl4965_dump_fh(struct iwl_priv *priv, char **buf, bool display); - -/* rx */ -void iwl4965_rx_queue_restock(struct iwl_priv *priv); -void iwl4965_rx_replenish(struct iwl_priv *priv); -void iwl4965_rx_replenish_now(struct iwl_priv *priv); -void iwl4965_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq); -int iwl4965_rxq_stop(struct iwl_priv *priv); -int iwl4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); -void iwl4965_rx_reply_rx(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -void iwl4965_rx_handle(struct iwl_priv *priv); - -/* tx */ -void iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq); -int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - dma_addr_t addr, u16 len, u8 reset, u8 pad); -int iwl4965_hw_tx_queue_init(struct iwl_priv *priv, - struct iwl_tx_queue *txq); -void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, - struct ieee80211_tx_info *info); -int iwl4965_tx_skb(struct iwl_priv *priv, struct sk_buff *skb); -int iwl4965_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif, - struct ieee80211_sta *sta, u16 tid, u16 *ssn); -int iwl4965_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif, - struct ieee80211_sta *sta, u16 tid); -int iwl4965_txq_check_empty(struct iwl_priv *priv, - int sta_id, u8 tid, int txq_id); -void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); -void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv); -int iwl4965_txq_ctx_alloc(struct iwl_priv *priv); -void iwl4965_txq_ctx_reset(struct iwl_priv *priv); -void iwl4965_txq_ctx_stop(struct iwl_priv *priv); -void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask); - -/* - * Acquire priv->lock before calling this function ! - */ -void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index); -/** - * iwl4965_tx_queue_set_status - (optionally) start Tx/Cmd queue - * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed - * @scd_retry: (1) Indicates queue will be used in aggregation mode - * - * NOTE: Acquire priv->lock before calling this function ! - */ -void iwl4965_tx_queue_set_status(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - int tx_fifo_id, int scd_retry); - -static inline u32 iwl4965_tx_status_to_mac80211(u32 status) -{ - status &= TX_STATUS_MSK; - - switch (status) { - case TX_STATUS_SUCCESS: - case TX_STATUS_DIRECT_DONE: - return IEEE80211_TX_STAT_ACK; - case TX_STATUS_FAIL_DEST_PS: - return IEEE80211_TX_STAT_TX_FILTERED; - default: - return 0; - } -} - -static inline bool iwl4965_is_tx_success(u32 status) -{ - status &= TX_STATUS_MSK; - return (status == TX_STATUS_SUCCESS) || - (status == TX_STATUS_DIRECT_DONE); -} - -u8 iwl4965_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid); - -/* rx */ -void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -bool iwl4965_good_plcp_health(struct iwl_priv *priv, - struct iwl_rx_packet *pkt); -void iwl4965_rx_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -void iwl4965_reply_statistics(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); - -/* scan */ -int iwl4965_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif); - -/* station mgmt */ -int iwl4965_manage_ibss_station(struct iwl_priv *priv, - struct ieee80211_vif *vif, bool add); - -/* hcmd */ -int iwl4965_send_beacon_cmd(struct iwl_priv *priv); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -const char *iwl4965_get_tx_fail_reason(u32 status); -#else -static inline const char * -iwl4965_get_tx_fail_reason(u32 status) { return ""; } -#endif - -/* station management */ -int iwl4965_alloc_bcast_station(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -int iwl4965_add_bssid_station(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - const u8 *addr, u8 *sta_id_r); -int iwl4965_remove_default_wep_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *key); -int iwl4965_set_default_wep_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *key); -int iwl4965_restore_default_wep_keys(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -int iwl4965_set_dynamic_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *key, u8 sta_id); -int iwl4965_remove_dynamic_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *key, u8 sta_id); -void iwl4965_update_tkip_key(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_key_conf *keyconf, - struct ieee80211_sta *sta, u32 iv32, u16 *phase1key); -int iwl4965_sta_tx_modify_enable_tid(struct iwl_priv *priv, - int sta_id, int tid); -int iwl4965_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta, - int tid, u16 ssn); -int iwl4965_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta, - int tid); -void iwl4965_sta_modify_sleep_tx_count(struct iwl_priv *priv, - int sta_id, int cnt); -int iwl4965_update_bcast_stations(struct iwl_priv *priv); - -/* rate */ -static inline u32 iwl4965_ant_idx_to_flags(u8 ant_idx) -{ - return BIT(ant_idx) << RATE_MCS_ANT_POS; -} - -static inline u8 iwl4965_hw_get_rate(__le32 rate_n_flags) -{ - return le32_to_cpu(rate_n_flags) & 0xFF; -} - -static inline __le32 iwl4965_hw_set_rate_n_flags(u8 rate, u32 flags) -{ - return cpu_to_le32(flags|(u32)rate); -} - -/* eeprom */ -void iwl4965_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac); -int iwl4965_eeprom_acquire_semaphore(struct iwl_priv *priv); -void iwl4965_eeprom_release_semaphore(struct iwl_priv *priv); -int iwl4965_eeprom_check_version(struct iwl_priv *priv); - -/* mac80211 handlers (for 4965) */ -void iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb); -int iwl4965_mac_start(struct ieee80211_hw *hw); -void iwl4965_mac_stop(struct ieee80211_hw *hw); -void iwl4965_configure_filter(struct ieee80211_hw *hw, - unsigned int changed_flags, - unsigned int *total_flags, - u64 multicast); -int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, - struct ieee80211_vif *vif, struct ieee80211_sta *sta, - struct ieee80211_key_conf *key); -void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_key_conf *keyconf, - struct ieee80211_sta *sta, - u32 iv32, u16 *phase1key); -int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum ieee80211_ampdu_mlme_action action, - struct ieee80211_sta *sta, u16 tid, u16 *ssn, - u8 buf_size); -int iwl4965_mac_sta_add(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_sta *sta); -void iwl4965_mac_channel_switch(struct ieee80211_hw *hw, - struct ieee80211_channel_switch *ch_switch); - -#endif /* __iwl_4965_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-core.c b/drivers/net/wireless/iwlegacy/iwl-core.c deleted file mode 100644 index 2bd5659310d7..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-core.c +++ /dev/null @@ -1,2661 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/etherdevice.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <net/mac80211.h> - -#include "iwl-eeprom.h" -#include "iwl-dev.h" -#include "iwl-debug.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-power.h" -#include "iwl-sta.h" -#include "iwl-helpers.h" - - -MODULE_DESCRIPTION("iwl-legacy: common functions for 3945 and 4965"); -MODULE_VERSION(IWLWIFI_VERSION); -MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); -MODULE_LICENSE("GPL"); - -/* - * set bt_coex_active to true, uCode will do kill/defer - * every time the priority line is asserted (BT is sending signals on the - * priority line in the PCIx). - * set bt_coex_active to false, uCode will ignore the BT activity and - * perform the normal operation - * - * User might experience transmit issue on some platform due to WiFi/BT - * co-exist problem. The possible behaviors are: - * Able to scan and finding all the available AP - * Not able to associate with any AP - * On those platforms, WiFi communication can be restored by set - * "bt_coex_active" module parameter to "false" - * - * default: bt_coex_active = true (BT_COEX_ENABLE) - */ -static bool bt_coex_active = true; -module_param(bt_coex_active, bool, S_IRUGO); -MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist"); - -u32 iwlegacy_debug_level; -EXPORT_SYMBOL(iwlegacy_debug_level); - -const u8 iwlegacy_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; -EXPORT_SYMBOL(iwlegacy_bcast_addr); - - -/* This function both allocates and initializes hw and priv. */ -struct ieee80211_hw *iwl_legacy_alloc_all(struct iwl_cfg *cfg) -{ - struct iwl_priv *priv; - /* mac80211 allocates memory for this device instance, including - * space for this driver's private structure */ - struct ieee80211_hw *hw; - - hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), - cfg->ops->ieee80211_ops); - if (hw == NULL) { - pr_err("%s: Can not allocate network device\n", - cfg->name); - goto out; - } - - priv = hw->priv; - priv->hw = hw; - -out: - return hw; -} -EXPORT_SYMBOL(iwl_legacy_alloc_all); - -#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ -#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ -static void iwl_legacy_init_ht_hw_capab(const struct iwl_priv *priv, - struct ieee80211_sta_ht_cap *ht_info, - enum ieee80211_band band) -{ - u16 max_bit_rate = 0; - u8 rx_chains_num = priv->hw_params.rx_chains_num; - u8 tx_chains_num = priv->hw_params.tx_chains_num; - - ht_info->cap = 0; - memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); - - ht_info->ht_supported = true; - - ht_info->cap |= IEEE80211_HT_CAP_SGI_20; - max_bit_rate = MAX_BIT_RATE_20_MHZ; - if (priv->hw_params.ht40_channel & BIT(band)) { - ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; - ht_info->cap |= IEEE80211_HT_CAP_SGI_40; - ht_info->mcs.rx_mask[4] = 0x01; - max_bit_rate = MAX_BIT_RATE_40_MHZ; - } - - if (priv->cfg->mod_params->amsdu_size_8K) - ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; - - ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; - ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; - - ht_info->mcs.rx_mask[0] = 0xFF; - if (rx_chains_num >= 2) - ht_info->mcs.rx_mask[1] = 0xFF; - if (rx_chains_num >= 3) - ht_info->mcs.rx_mask[2] = 0xFF; - - /* Highest supported Rx data rate */ - max_bit_rate *= rx_chains_num; - WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); - ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); - - /* Tx MCS capabilities */ - ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; - if (tx_chains_num != rx_chains_num) { - ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; - ht_info->mcs.tx_params |= ((tx_chains_num - 1) << - IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); - } -} - -/** - * iwl_legacy_init_geos - Initialize mac80211's geo/channel info based from eeprom - */ -int iwl_legacy_init_geos(struct iwl_priv *priv) -{ - struct iwl_channel_info *ch; - struct ieee80211_supported_band *sband; - struct ieee80211_channel *channels; - struct ieee80211_channel *geo_ch; - struct ieee80211_rate *rates; - int i = 0; - s8 max_tx_power = 0; - - if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || - priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { - IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n"); - set_bit(STATUS_GEO_CONFIGURED, &priv->status); - return 0; - } - - channels = kzalloc(sizeof(struct ieee80211_channel) * - priv->channel_count, GFP_KERNEL); - if (!channels) - return -ENOMEM; - - rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY), - GFP_KERNEL); - if (!rates) { - kfree(channels); - return -ENOMEM; - } - - /* 5.2GHz channels start after the 2.4GHz channels */ - sband = &priv->bands[IEEE80211_BAND_5GHZ]; - sband->channels = &channels[ARRAY_SIZE(iwlegacy_eeprom_band_1)]; - /* just OFDM */ - sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; - sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE; - - if (priv->cfg->sku & IWL_SKU_N) - iwl_legacy_init_ht_hw_capab(priv, &sband->ht_cap, - IEEE80211_BAND_5GHZ); - - sband = &priv->bands[IEEE80211_BAND_2GHZ]; - sband->channels = channels; - /* OFDM & CCK */ - sband->bitrates = rates; - sband->n_bitrates = IWL_RATE_COUNT_LEGACY; - - if (priv->cfg->sku & IWL_SKU_N) - iwl_legacy_init_ht_hw_capab(priv, &sband->ht_cap, - IEEE80211_BAND_2GHZ); - - priv->ieee_channels = channels; - priv->ieee_rates = rates; - - for (i = 0; i < priv->channel_count; i++) { - ch = &priv->channel_info[i]; - - if (!iwl_legacy_is_channel_valid(ch)) - continue; - - sband = &priv->bands[ch->band]; - - geo_ch = &sband->channels[sband->n_channels++]; - - geo_ch->center_freq = - ieee80211_channel_to_frequency(ch->channel, ch->band); - geo_ch->max_power = ch->max_power_avg; - geo_ch->max_antenna_gain = 0xff; - geo_ch->hw_value = ch->channel; - - if (iwl_legacy_is_channel_valid(ch)) { - if (!(ch->flags & EEPROM_CHANNEL_IBSS)) - geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; - - if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) - geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; - - if (ch->flags & EEPROM_CHANNEL_RADAR) - geo_ch->flags |= IEEE80211_CHAN_RADAR; - - geo_ch->flags |= ch->ht40_extension_channel; - - if (ch->max_power_avg > max_tx_power) - max_tx_power = ch->max_power_avg; - } else { - geo_ch->flags |= IEEE80211_CHAN_DISABLED; - } - - IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", - ch->channel, geo_ch->center_freq, - iwl_legacy_is_channel_a_band(ch) ? "5.2" : "2.4", - geo_ch->flags & IEEE80211_CHAN_DISABLED ? - "restricted" : "valid", - geo_ch->flags); - } - - priv->tx_power_device_lmt = max_tx_power; - priv->tx_power_user_lmt = max_tx_power; - priv->tx_power_next = max_tx_power; - - if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && - priv->cfg->sku & IWL_SKU_A) { - IWL_INFO(priv, "Incorrectly detected BG card as ABG. " - "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n", - priv->pci_dev->device, - priv->pci_dev->subsystem_device); - priv->cfg->sku &= ~IWL_SKU_A; - } - - IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n", - priv->bands[IEEE80211_BAND_2GHZ].n_channels, - priv->bands[IEEE80211_BAND_5GHZ].n_channels); - - set_bit(STATUS_GEO_CONFIGURED, &priv->status); - - return 0; -} -EXPORT_SYMBOL(iwl_legacy_init_geos); - -/* - * iwl_legacy_free_geos - undo allocations in iwl_legacy_init_geos - */ -void iwl_legacy_free_geos(struct iwl_priv *priv) -{ - kfree(priv->ieee_channels); - kfree(priv->ieee_rates); - clear_bit(STATUS_GEO_CONFIGURED, &priv->status); -} -EXPORT_SYMBOL(iwl_legacy_free_geos); - -static bool iwl_legacy_is_channel_extension(struct iwl_priv *priv, - enum ieee80211_band band, - u16 channel, u8 extension_chan_offset) -{ - const struct iwl_channel_info *ch_info; - - ch_info = iwl_legacy_get_channel_info(priv, band, channel); - if (!iwl_legacy_is_channel_valid(ch_info)) - return false; - - if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) - return !(ch_info->ht40_extension_channel & - IEEE80211_CHAN_NO_HT40PLUS); - else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) - return !(ch_info->ht40_extension_channel & - IEEE80211_CHAN_NO_HT40MINUS); - - return false; -} - -bool iwl_legacy_is_ht40_tx_allowed(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_sta_ht_cap *ht_cap) -{ - if (!ctx->ht.enabled || !ctx->ht.is_40mhz) - return false; - - /* - * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 - * the bit will not set if it is pure 40MHz case - */ - if (ht_cap && !ht_cap->ht_supported) - return false; - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - if (priv->disable_ht40) - return false; -#endif - - return iwl_legacy_is_channel_extension(priv, priv->band, - le16_to_cpu(ctx->staging.channel), - ctx->ht.extension_chan_offset); -} -EXPORT_SYMBOL(iwl_legacy_is_ht40_tx_allowed); - -static u16 iwl_legacy_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) -{ - u16 new_val; - u16 beacon_factor; - - /* - * If mac80211 hasn't given us a beacon interval, program - * the default into the device. - */ - if (!beacon_val) - return DEFAULT_BEACON_INTERVAL; - - /* - * If the beacon interval we obtained from the peer - * is too large, we'll have to wake up more often - * (and in IBSS case, we'll beacon too much) - * - * For example, if max_beacon_val is 4096, and the - * requested beacon interval is 7000, we'll have to - * use 3500 to be able to wake up on the beacons. - * - * This could badly influence beacon detection stats. - */ - - beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; - new_val = beacon_val / beacon_factor; - - if (!new_val) - new_val = max_beacon_val; - - return new_val; -} - -int -iwl_legacy_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - u64 tsf; - s32 interval_tm, rem; - struct ieee80211_conf *conf = NULL; - u16 beacon_int; - struct ieee80211_vif *vif = ctx->vif; - - conf = iwl_legacy_ieee80211_get_hw_conf(priv->hw); - - lockdep_assert_held(&priv->mutex); - - memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd)); - - ctx->timing.timestamp = cpu_to_le64(priv->timestamp); - ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); - - beacon_int = vif ? vif->bss_conf.beacon_int : 0; - - /* - * TODO: For IBSS we need to get atim_window from mac80211, - * for now just always use 0 - */ - ctx->timing.atim_window = 0; - - beacon_int = iwl_legacy_adjust_beacon_interval(beacon_int, - priv->hw_params.max_beacon_itrvl * TIME_UNIT); - ctx->timing.beacon_interval = cpu_to_le16(beacon_int); - - tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ - interval_tm = beacon_int * TIME_UNIT; - rem = do_div(tsf, interval_tm); - ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); - - ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1; - - IWL_DEBUG_ASSOC(priv, - "beacon interval %d beacon timer %d beacon tim %d\n", - le16_to_cpu(ctx->timing.beacon_interval), - le32_to_cpu(ctx->timing.beacon_init_val), - le16_to_cpu(ctx->timing.atim_window)); - - return iwl_legacy_send_cmd_pdu(priv, ctx->rxon_timing_cmd, - sizeof(ctx->timing), &ctx->timing); -} -EXPORT_SYMBOL(iwl_legacy_send_rxon_timing); - -void -iwl_legacy_set_rxon_hwcrypto(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - int hw_decrypt) -{ - struct iwl_legacy_rxon_cmd *rxon = &ctx->staging; - - if (hw_decrypt) - rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; - else - rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; - -} -EXPORT_SYMBOL(iwl_legacy_set_rxon_hwcrypto); - -/* validate RXON structure is valid */ -int -iwl_legacy_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - struct iwl_legacy_rxon_cmd *rxon = &ctx->staging; - bool error = false; - - if (rxon->flags & RXON_FLG_BAND_24G_MSK) { - if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) { - IWL_WARN(priv, "check 2.4G: wrong narrow\n"); - error = true; - } - if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) { - IWL_WARN(priv, "check 2.4G: wrong radar\n"); - error = true; - } - } else { - if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) { - IWL_WARN(priv, "check 5.2G: not short slot!\n"); - error = true; - } - if (rxon->flags & RXON_FLG_CCK_MSK) { - IWL_WARN(priv, "check 5.2G: CCK!\n"); - error = true; - } - } - if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) { - IWL_WARN(priv, "mac/bssid mcast!\n"); - error = true; - } - - /* make sure basic rates 6Mbps and 1Mbps are supported */ - if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 && - (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) { - IWL_WARN(priv, "neither 1 nor 6 are basic\n"); - error = true; - } - - if (le16_to_cpu(rxon->assoc_id) > 2007) { - IWL_WARN(priv, "aid > 2007\n"); - error = true; - } - - if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) - == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) { - IWL_WARN(priv, "CCK and short slot\n"); - error = true; - } - - if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) - == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { - IWL_WARN(priv, "CCK and auto detect"); - error = true; - } - - if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | - RXON_FLG_TGG_PROTECT_MSK)) == - RXON_FLG_TGG_PROTECT_MSK) { - IWL_WARN(priv, "TGg but no auto-detect\n"); - error = true; - } - - if (error) - IWL_WARN(priv, "Tuning to channel %d\n", - le16_to_cpu(rxon->channel)); - - if (error) { - IWL_ERR(priv, "Invalid RXON\n"); - return -EINVAL; - } - return 0; -} -EXPORT_SYMBOL(iwl_legacy_check_rxon_cmd); - -/** - * iwl_legacy_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed - * @priv: staging_rxon is compared to active_rxon - * - * If the RXON structure is changing enough to require a new tune, - * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that - * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. - */ -int iwl_legacy_full_rxon_required(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - const struct iwl_legacy_rxon_cmd *staging = &ctx->staging; - const struct iwl_legacy_rxon_cmd *active = &ctx->active; - -#define CHK(cond) \ - if ((cond)) { \ - IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n"); \ - return 1; \ - } - -#define CHK_NEQ(c1, c2) \ - if ((c1) != (c2)) { \ - IWL_DEBUG_INFO(priv, "need full RXON - " \ - #c1 " != " #c2 " - %d != %d\n", \ - (c1), (c2)); \ - return 1; \ - } - - /* These items are only settable from the full RXON command */ - CHK(!iwl_legacy_is_associated_ctx(ctx)); - CHK(compare_ether_addr(staging->bssid_addr, active->bssid_addr)); - CHK(compare_ether_addr(staging->node_addr, active->node_addr)); - CHK(compare_ether_addr(staging->wlap_bssid_addr, - active->wlap_bssid_addr)); - CHK_NEQ(staging->dev_type, active->dev_type); - CHK_NEQ(staging->channel, active->channel); - CHK_NEQ(staging->air_propagation, active->air_propagation); - CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates, - active->ofdm_ht_single_stream_basic_rates); - CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates, - active->ofdm_ht_dual_stream_basic_rates); - CHK_NEQ(staging->assoc_id, active->assoc_id); - - /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can - * be updated with the RXON_ASSOC command -- however only some - * flag transitions are allowed using RXON_ASSOC */ - - /* Check if we are not switching bands */ - CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK, - active->flags & RXON_FLG_BAND_24G_MSK); - - /* Check if we are switching association toggle */ - CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK, - active->filter_flags & RXON_FILTER_ASSOC_MSK); - -#undef CHK -#undef CHK_NEQ - - return 0; -} -EXPORT_SYMBOL(iwl_legacy_full_rxon_required); - -u8 iwl_legacy_get_lowest_plcp(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - /* - * Assign the lowest rate -- should really get this from - * the beacon skb from mac80211. - */ - if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) - return IWL_RATE_1M_PLCP; - else - return IWL_RATE_6M_PLCP; -} -EXPORT_SYMBOL(iwl_legacy_get_lowest_plcp); - -static void _iwl_legacy_set_rxon_ht(struct iwl_priv *priv, - struct iwl_ht_config *ht_conf, - struct iwl_rxon_context *ctx) -{ - struct iwl_legacy_rxon_cmd *rxon = &ctx->staging; - - if (!ctx->ht.enabled) { - rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | - RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | - RXON_FLG_HT40_PROT_MSK | - RXON_FLG_HT_PROT_MSK); - return; - } - - rxon->flags |= cpu_to_le32(ctx->ht.protection << - RXON_FLG_HT_OPERATING_MODE_POS); - - /* Set up channel bandwidth: - * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ - /* clear the HT channel mode before set the mode */ - rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | - RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); - if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, NULL)) { - /* pure ht40 */ - if (ctx->ht.protection == - IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { - rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; - /* Note: control channel is opposite of extension channel */ - switch (ctx->ht.extension_chan_offset) { - case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: - rxon->flags &= - ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; - break; - case IEEE80211_HT_PARAM_CHA_SEC_BELOW: - rxon->flags |= - RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; - break; - } - } else { - /* Note: control channel is opposite of extension channel */ - switch (ctx->ht.extension_chan_offset) { - case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: - rxon->flags &= - ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); - rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; - break; - case IEEE80211_HT_PARAM_CHA_SEC_BELOW: - rxon->flags |= - RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; - rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; - break; - case IEEE80211_HT_PARAM_CHA_SEC_NONE: - default: - /* channel location only valid if in Mixed mode */ - IWL_ERR(priv, - "invalid extension channel offset\n"); - break; - } - } - } else { - rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; - } - - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - - IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " - "extension channel offset 0x%x\n", - le32_to_cpu(rxon->flags), ctx->ht.protection, - ctx->ht.extension_chan_offset); -} - -void iwl_legacy_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) -{ - struct iwl_rxon_context *ctx; - - for_each_context(priv, ctx) - _iwl_legacy_set_rxon_ht(priv, ht_conf, ctx); -} -EXPORT_SYMBOL(iwl_legacy_set_rxon_ht); - -/* Return valid, unused, channel for a passive scan to reset the RF */ -u8 iwl_legacy_get_single_channel_number(struct iwl_priv *priv, - enum ieee80211_band band) -{ - const struct iwl_channel_info *ch_info; - int i; - u8 channel = 0; - u8 min, max; - struct iwl_rxon_context *ctx; - - if (band == IEEE80211_BAND_5GHZ) { - min = 14; - max = priv->channel_count; - } else { - min = 0; - max = 14; - } - - for (i = min; i < max; i++) { - bool busy = false; - - for_each_context(priv, ctx) { - busy = priv->channel_info[i].channel == - le16_to_cpu(ctx->staging.channel); - if (busy) - break; - } - - if (busy) - continue; - - channel = priv->channel_info[i].channel; - ch_info = iwl_legacy_get_channel_info(priv, band, channel); - if (iwl_legacy_is_channel_valid(ch_info)) - break; - } - - return channel; -} -EXPORT_SYMBOL(iwl_legacy_get_single_channel_number); - -/** - * iwl_legacy_set_rxon_channel - Set the band and channel values in staging RXON - * @ch: requested channel as a pointer to struct ieee80211_channel - - * NOTE: Does not commit to the hardware; it sets appropriate bit fields - * in the staging RXON flag structure based on the ch->band - */ -int -iwl_legacy_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch, - struct iwl_rxon_context *ctx) -{ - enum ieee80211_band band = ch->band; - u16 channel = ch->hw_value; - - if ((le16_to_cpu(ctx->staging.channel) == channel) && - (priv->band == band)) - return 0; - - ctx->staging.channel = cpu_to_le16(channel); - if (band == IEEE80211_BAND_5GHZ) - ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK; - else - ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; - - priv->band = band; - - IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band); - - return 0; -} -EXPORT_SYMBOL(iwl_legacy_set_rxon_channel); - -void iwl_legacy_set_flags_for_band(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - enum ieee80211_band band, - struct ieee80211_vif *vif) -{ - if (band == IEEE80211_BAND_5GHZ) { - ctx->staging.flags &= - ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK - | RXON_FLG_CCK_MSK); - ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; - } else { - /* Copied from iwl_post_associate() */ - if (vif && vif->bss_conf.use_short_slot) - ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; - else - ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; - - ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; - ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK; - ctx->staging.flags &= ~RXON_FLG_CCK_MSK; - } -} -EXPORT_SYMBOL(iwl_legacy_set_flags_for_band); - -/* - * initialize rxon structure with default values from eeprom - */ -void iwl_legacy_connection_init_rx_config(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - const struct iwl_channel_info *ch_info; - - memset(&ctx->staging, 0, sizeof(ctx->staging)); - - if (!ctx->vif) { - ctx->staging.dev_type = ctx->unused_devtype; - } else - switch (ctx->vif->type) { - - case NL80211_IFTYPE_STATION: - ctx->staging.dev_type = ctx->station_devtype; - ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; - break; - - case NL80211_IFTYPE_ADHOC: - ctx->staging.dev_type = ctx->ibss_devtype; - ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK; - ctx->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK | - RXON_FILTER_ACCEPT_GRP_MSK; - break; - - default: - IWL_ERR(priv, "Unsupported interface type %d\n", - ctx->vif->type); - break; - } - -#if 0 - /* TODO: Figure out when short_preamble would be set and cache from - * that */ - if (!hw_to_local(priv->hw)->short_preamble) - ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; - else - ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; -#endif - - ch_info = iwl_legacy_get_channel_info(priv, priv->band, - le16_to_cpu(ctx->active.channel)); - - if (!ch_info) - ch_info = &priv->channel_info[0]; - - ctx->staging.channel = cpu_to_le16(ch_info->channel); - priv->band = ch_info->band; - - iwl_legacy_set_flags_for_band(priv, ctx, priv->band, ctx->vif); - - ctx->staging.ofdm_basic_rates = - (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; - ctx->staging.cck_basic_rates = - (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; - - /* clear both MIX and PURE40 mode flag */ - ctx->staging.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | - RXON_FLG_CHANNEL_MODE_PURE_40); - if (ctx->vif) - memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN); - - ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff; - ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff; -} -EXPORT_SYMBOL(iwl_legacy_connection_init_rx_config); - -void iwl_legacy_set_rate(struct iwl_priv *priv) -{ - const struct ieee80211_supported_band *hw = NULL; - struct ieee80211_rate *rate; - struct iwl_rxon_context *ctx; - int i; - - hw = iwl_get_hw_mode(priv, priv->band); - if (!hw) { - IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n"); - return; - } - - priv->active_rate = 0; - - for (i = 0; i < hw->n_bitrates; i++) { - rate = &(hw->bitrates[i]); - if (rate->hw_value < IWL_RATE_COUNT_LEGACY) - priv->active_rate |= (1 << rate->hw_value); - } - - IWL_DEBUG_RATE(priv, "Set active_rate = %0x\n", priv->active_rate); - - for_each_context(priv, ctx) { - ctx->staging.cck_basic_rates = - (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; - - ctx->staging.ofdm_basic_rates = - (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; - } -} -EXPORT_SYMBOL(iwl_legacy_set_rate); - -void iwl_legacy_chswitch_done(struct iwl_priv *priv, bool is_success) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) - ieee80211_chswitch_done(ctx->vif, is_success); -} -EXPORT_SYMBOL(iwl_legacy_chswitch_done); - -void iwl_legacy_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_csa_notification *csa = &(pkt->u.csa_notif); - - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - struct iwl_legacy_rxon_cmd *rxon = (void *)&ctx->active; - - if (!test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) - return; - - if (!le32_to_cpu(csa->status) && csa->channel == priv->switch_channel) { - rxon->channel = csa->channel; - ctx->staging.channel = csa->channel; - IWL_DEBUG_11H(priv, "CSA notif: channel %d\n", - le16_to_cpu(csa->channel)); - iwl_legacy_chswitch_done(priv, true); - } else { - IWL_ERR(priv, "CSA notif (fail) : channel %d\n", - le16_to_cpu(csa->channel)); - iwl_legacy_chswitch_done(priv, false); - } -} -EXPORT_SYMBOL(iwl_legacy_rx_csa); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - struct iwl_legacy_rxon_cmd *rxon = &ctx->staging; - - IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); - iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); - IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", - le16_to_cpu(rxon->channel)); - IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); - IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n", - le32_to_cpu(rxon->filter_flags)); - IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type); - IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n", - rxon->ofdm_basic_rates); - IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", - rxon->cck_basic_rates); - IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr); - IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); - IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", - le16_to_cpu(rxon->assoc_id)); -} -EXPORT_SYMBOL(iwl_legacy_print_rx_config_cmd); -#endif -/** - * iwl_legacy_irq_handle_error - called for HW or SW error interrupt from card - */ -void iwl_legacy_irq_handle_error(struct iwl_priv *priv) -{ - /* Set the FW error flag -- cleared on iwl_down */ - set_bit(STATUS_FW_ERROR, &priv->status); - - /* Cancel currently queued command. */ - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - - IWL_ERR(priv, "Loaded firmware version: %s\n", - priv->hw->wiphy->fw_version); - - priv->cfg->ops->lib->dump_nic_error_log(priv); - if (priv->cfg->ops->lib->dump_fh) - priv->cfg->ops->lib->dump_fh(priv, NULL, false); -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (iwl_legacy_get_debug_level(priv) & IWL_DL_FW_ERRORS) - iwl_legacy_print_rx_config_cmd(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); -#endif - - wake_up(&priv->wait_command_queue); - - /* Keep the restart process from trying to send host - * commands by clearing the INIT status bit */ - clear_bit(STATUS_READY, &priv->status); - - if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { - IWL_DEBUG(priv, IWL_DL_FW_ERRORS, - "Restarting adapter due to uCode error.\n"); - - if (priv->cfg->mod_params->restart_fw) - queue_work(priv->workqueue, &priv->restart); - } -} -EXPORT_SYMBOL(iwl_legacy_irq_handle_error); - -static int iwl_legacy_apm_stop_master(struct iwl_priv *priv) -{ - int ret = 0; - - /* stop device's busmaster DMA activity */ - iwl_legacy_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); - - ret = iwl_poll_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED, - CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); - if (ret) - IWL_WARN(priv, "Master Disable Timed Out, 100 usec\n"); - - IWL_DEBUG_INFO(priv, "stop master\n"); - - return ret; -} - -void iwl_legacy_apm_stop(struct iwl_priv *priv) -{ - IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n"); - - /* Stop device's DMA activity */ - iwl_legacy_apm_stop_master(priv); - - /* Reset the entire device */ - iwl_legacy_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); - - udelay(10); - - /* - * Clear "initialization complete" bit to move adapter from - * D0A* (powered-up Active) --> D0U* (Uninitialized) state. - */ - iwl_legacy_clear_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_INIT_DONE); -} -EXPORT_SYMBOL(iwl_legacy_apm_stop); - - -/* - * Start up NIC's basic functionality after it has been reset - * (e.g. after platform boot, or shutdown via iwl_legacy_apm_stop()) - * NOTE: This does not load uCode nor start the embedded processor - */ -int iwl_legacy_apm_init(struct iwl_priv *priv) -{ - int ret = 0; - u16 lctl; - - IWL_DEBUG_INFO(priv, "Init card's basic functions\n"); - - /* - * Use "set_bit" below rather than "write", to preserve any hardware - * bits already set by default after reset. - */ - - /* Disable L0S exit timer (platform NMI Work/Around) */ - iwl_legacy_set_bit(priv, CSR_GIO_CHICKEN_BITS, - CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); - - /* - * Disable L0s without affecting L1; - * don't wait for ICH L0s (ICH bug W/A) - */ - iwl_legacy_set_bit(priv, CSR_GIO_CHICKEN_BITS, - CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); - - /* Set FH wait threshold to maximum (HW error during stress W/A) */ - iwl_legacy_set_bit(priv, CSR_DBG_HPET_MEM_REG, - CSR_DBG_HPET_MEM_REG_VAL); - - /* - * Enable HAP INTA (interrupt from management bus) to - * wake device's PCI Express link L1a -> L0s - * NOTE: This is no-op for 3945 (non-existent bit) - */ - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A); - - /* - * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition. - * Check if BIOS (or OS) enabled L1-ASPM on this device. - * If so (likely), disable L0S, so device moves directly L0->L1; - * costs negligible amount of power savings. - * If not (unlikely), enable L0S, so there is at least some - * power savings, even without L1. - */ - if (priv->cfg->base_params->set_l0s) { - lctl = iwl_legacy_pcie_link_ctl(priv); - if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == - PCI_CFG_LINK_CTRL_VAL_L1_EN) { - /* L1-ASPM enabled; disable(!) L0S */ - iwl_legacy_set_bit(priv, CSR_GIO_REG, - CSR_GIO_REG_VAL_L0S_ENABLED); - IWL_DEBUG_POWER(priv, "L1 Enabled; Disabling L0S\n"); - } else { - /* L1-ASPM disabled; enable(!) L0S */ - iwl_legacy_clear_bit(priv, CSR_GIO_REG, - CSR_GIO_REG_VAL_L0S_ENABLED); - IWL_DEBUG_POWER(priv, "L1 Disabled; Enabling L0S\n"); - } - } - - /* Configure analog phase-lock-loop before activating to D0A */ - if (priv->cfg->base_params->pll_cfg_val) - iwl_legacy_set_bit(priv, CSR_ANA_PLL_CFG, - priv->cfg->base_params->pll_cfg_val); - - /* - * Set "initialization complete" bit to move adapter from - * D0U* --> D0A* (powered-up active) state. - */ - iwl_legacy_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); - - /* - * Wait for clock stabilization; once stabilized, access to - * device-internal resources is supported, e.g. iwl_legacy_write_prph() - * and accesses to uCode SRAM. - */ - ret = iwl_poll_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); - if (ret < 0) { - IWL_DEBUG_INFO(priv, "Failed to init the card\n"); - goto out; - } - - /* - * Enable DMA and BSM (if used) clocks, wait for them to stabilize. - * BSM (Boostrap State Machine) is only in 3945 and 4965. - * - * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits - * do not disable clocks. This preserves any hardware bits already - * set by default in "CLK_CTRL_REG" after reset. - */ - if (priv->cfg->base_params->use_bsm) - iwl_legacy_write_prph(priv, APMG_CLK_EN_REG, - APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT); - else - iwl_legacy_write_prph(priv, APMG_CLK_EN_REG, - APMG_CLK_VAL_DMA_CLK_RQT); - udelay(20); - - /* Disable L1-Active */ - iwl_legacy_set_bits_prph(priv, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); - -out: - return ret; -} -EXPORT_SYMBOL(iwl_legacy_apm_init); - - -int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) -{ - int ret; - s8 prev_tx_power; - bool defer; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - lockdep_assert_held(&priv->mutex); - - if (priv->tx_power_user_lmt == tx_power && !force) - return 0; - - if (!priv->cfg->ops->lib->send_tx_power) - return -EOPNOTSUPP; - - /* 0 dBm mean 1 milliwatt */ - if (tx_power < 0) { - IWL_WARN(priv, - "Requested user TXPOWER %d below 1 mW.\n", - tx_power); - return -EINVAL; - } - - if (tx_power > priv->tx_power_device_lmt) { - IWL_WARN(priv, - "Requested user TXPOWER %d above upper limit %d.\n", - tx_power, priv->tx_power_device_lmt); - return -EINVAL; - } - - if (!iwl_legacy_is_ready_rf(priv)) - return -EIO; - - /* scan complete and commit_rxon use tx_power_next value, - * it always need to be updated for newest request */ - priv->tx_power_next = tx_power; - - /* do not set tx power when scanning or channel changing */ - defer = test_bit(STATUS_SCANNING, &priv->status) || - memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)); - if (defer && !force) { - IWL_DEBUG_INFO(priv, "Deferring tx power set\n"); - return 0; - } - - prev_tx_power = priv->tx_power_user_lmt; - priv->tx_power_user_lmt = tx_power; - - ret = priv->cfg->ops->lib->send_tx_power(priv); - - /* if fail to set tx_power, restore the orig. tx power */ - if (ret) { - priv->tx_power_user_lmt = prev_tx_power; - priv->tx_power_next = prev_tx_power; - } - return ret; -} -EXPORT_SYMBOL(iwl_legacy_set_tx_power); - -void iwl_legacy_send_bt_config(struct iwl_priv *priv) -{ - struct iwl_bt_cmd bt_cmd = { - .lead_time = BT_LEAD_TIME_DEF, - .max_kill = BT_MAX_KILL_DEF, - .kill_ack_mask = 0, - .kill_cts_mask = 0, - }; - - if (!bt_coex_active) - bt_cmd.flags = BT_COEX_DISABLE; - else - bt_cmd.flags = BT_COEX_ENABLE; - - IWL_DEBUG_INFO(priv, "BT coex %s\n", - (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); - - if (iwl_legacy_send_cmd_pdu(priv, REPLY_BT_CONFIG, - sizeof(struct iwl_bt_cmd), &bt_cmd)) - IWL_ERR(priv, "failed to send BT Coex Config\n"); -} -EXPORT_SYMBOL(iwl_legacy_send_bt_config); - -int iwl_legacy_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) -{ - struct iwl_statistics_cmd statistics_cmd = { - .configuration_flags = - clear ? IWL_STATS_CONF_CLEAR_STATS : 0, - }; - - if (flags & CMD_ASYNC) - return iwl_legacy_send_cmd_pdu_async(priv, REPLY_STATISTICS_CMD, - sizeof(struct iwl_statistics_cmd), - &statistics_cmd, NULL); - else - return iwl_legacy_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, - sizeof(struct iwl_statistics_cmd), - &statistics_cmd); -} -EXPORT_SYMBOL(iwl_legacy_send_statistics_request); - -void iwl_legacy_rx_pm_sleep_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif); - IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n", - sleep->pm_sleep_mode, sleep->pm_wakeup_src); -#endif -} -EXPORT_SYMBOL(iwl_legacy_rx_pm_sleep_notif); - -void iwl_legacy_rx_pm_debug_statistics_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled " - "notification for %s:\n", len, - iwl_legacy_get_cmd_string(pkt->hdr.cmd)); - iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len); -} -EXPORT_SYMBOL(iwl_legacy_rx_pm_debug_statistics_notif); - -void iwl_legacy_rx_reply_error(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - - IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) " - "seq 0x%04X ser 0x%08X\n", - le32_to_cpu(pkt->u.err_resp.error_type), - iwl_legacy_get_cmd_string(pkt->u.err_resp.cmd_id), - pkt->u.err_resp.cmd_id, - le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), - le32_to_cpu(pkt->u.err_resp.error_info)); -} -EXPORT_SYMBOL(iwl_legacy_rx_reply_error); - -void iwl_legacy_clear_isr_stats(struct iwl_priv *priv) -{ - memset(&priv->isr_stats, 0, sizeof(priv->isr_stats)); -} - -int iwl_legacy_mac_conf_tx(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, u16 queue, - const struct ieee80211_tx_queue_params *params) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_rxon_context *ctx; - unsigned long flags; - int q; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (!iwl_legacy_is_ready_rf(priv)) { - IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); - return -EIO; - } - - if (queue >= AC_NUM) { - IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); - return 0; - } - - q = AC_NUM - 1 - queue; - - spin_lock_irqsave(&priv->lock, flags); - - for_each_context(priv, ctx) { - ctx->qos_data.def_qos_parm.ac[q].cw_min = - cpu_to_le16(params->cw_min); - ctx->qos_data.def_qos_parm.ac[q].cw_max = - cpu_to_le16(params->cw_max); - ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; - ctx->qos_data.def_qos_parm.ac[q].edca_txop = - cpu_to_le16((params->txop * 32)); - - ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; - } - - spin_unlock_irqrestore(&priv->lock, flags); - - IWL_DEBUG_MAC80211(priv, "leave\n"); - return 0; -} -EXPORT_SYMBOL(iwl_legacy_mac_conf_tx); - -int iwl_legacy_mac_tx_last_beacon(struct ieee80211_hw *hw) -{ - struct iwl_priv *priv = hw->priv; - - return priv->ibss_manager == IWL_IBSS_MANAGER; -} -EXPORT_SYMBOL_GPL(iwl_legacy_mac_tx_last_beacon); - -static int -iwl_legacy_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - iwl_legacy_connection_init_rx_config(priv, ctx); - - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - - return iwl_legacy_commit_rxon(priv, ctx); -} - -static int iwl_legacy_setup_interface(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - struct ieee80211_vif *vif = ctx->vif; - int err; - - lockdep_assert_held(&priv->mutex); - - /* - * This variable will be correct only when there's just - * a single context, but all code using it is for hardware - * that supports only one context. - */ - priv->iw_mode = vif->type; - - ctx->is_active = true; - - err = iwl_legacy_set_mode(priv, ctx); - if (err) { - if (!ctx->always_active) - ctx->is_active = false; - return err; - } - - return 0; -} - -int -iwl_legacy_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - struct iwl_rxon_context *tmp, *ctx = NULL; - int err; - - IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", - vif->type, vif->addr); - - mutex_lock(&priv->mutex); - - if (!iwl_legacy_is_ready_rf(priv)) { - IWL_WARN(priv, "Try to add interface when device not ready\n"); - err = -EINVAL; - goto out; - } - - for_each_context(priv, tmp) { - u32 possible_modes = - tmp->interface_modes | tmp->exclusive_interface_modes; - - if (tmp->vif) { - /* check if this busy context is exclusive */ - if (tmp->exclusive_interface_modes & - BIT(tmp->vif->type)) { - err = -EINVAL; - goto out; - } - continue; - } - - if (!(possible_modes & BIT(vif->type))) - continue; - - /* have maybe usable context w/o interface */ - ctx = tmp; - break; - } - - if (!ctx) { - err = -EOPNOTSUPP; - goto out; - } - - vif_priv->ctx = ctx; - ctx->vif = vif; - - err = iwl_legacy_setup_interface(priv, ctx); - if (!err) - goto out; - - ctx->vif = NULL; - priv->iw_mode = NL80211_IFTYPE_STATION; - out: - mutex_unlock(&priv->mutex); - - IWL_DEBUG_MAC80211(priv, "leave\n"); - return err; -} -EXPORT_SYMBOL(iwl_legacy_mac_add_interface); - -static void iwl_legacy_teardown_interface(struct iwl_priv *priv, - struct ieee80211_vif *vif, - bool mode_change) -{ - struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif); - - lockdep_assert_held(&priv->mutex); - - if (priv->scan_vif == vif) { - iwl_legacy_scan_cancel_timeout(priv, 200); - iwl_legacy_force_scan_end(priv); - } - - if (!mode_change) { - iwl_legacy_set_mode(priv, ctx); - if (!ctx->always_active) - ctx->is_active = false; - } -} - -void iwl_legacy_mac_remove_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif); - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - mutex_lock(&priv->mutex); - - WARN_ON(ctx->vif != vif); - ctx->vif = NULL; - - iwl_legacy_teardown_interface(priv, vif, false); - - memset(priv->bssid, 0, ETH_ALEN); - mutex_unlock(&priv->mutex); - - IWL_DEBUG_MAC80211(priv, "leave\n"); - -} -EXPORT_SYMBOL(iwl_legacy_mac_remove_interface); - -int iwl_legacy_alloc_txq_mem(struct iwl_priv *priv) -{ - if (!priv->txq) - priv->txq = kzalloc( - sizeof(struct iwl_tx_queue) * - priv->cfg->base_params->num_of_queues, - GFP_KERNEL); - if (!priv->txq) { - IWL_ERR(priv, "Not enough memory for txq\n"); - return -ENOMEM; - } - return 0; -} -EXPORT_SYMBOL(iwl_legacy_alloc_txq_mem); - -void iwl_legacy_txq_mem(struct iwl_priv *priv) -{ - kfree(priv->txq); - priv->txq = NULL; -} -EXPORT_SYMBOL(iwl_legacy_txq_mem); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - -#define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES) - -void iwl_legacy_reset_traffic_log(struct iwl_priv *priv) -{ - priv->tx_traffic_idx = 0; - priv->rx_traffic_idx = 0; - if (priv->tx_traffic) - memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); - if (priv->rx_traffic) - memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); -} - -int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv) -{ - u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE; - - if (iwlegacy_debug_level & IWL_DL_TX) { - if (!priv->tx_traffic) { - priv->tx_traffic = - kzalloc(traffic_size, GFP_KERNEL); - if (!priv->tx_traffic) - return -ENOMEM; - } - } - if (iwlegacy_debug_level & IWL_DL_RX) { - if (!priv->rx_traffic) { - priv->rx_traffic = - kzalloc(traffic_size, GFP_KERNEL); - if (!priv->rx_traffic) - return -ENOMEM; - } - } - iwl_legacy_reset_traffic_log(priv); - return 0; -} -EXPORT_SYMBOL(iwl_legacy_alloc_traffic_mem); - -void iwl_legacy_free_traffic_mem(struct iwl_priv *priv) -{ - kfree(priv->tx_traffic); - priv->tx_traffic = NULL; - - kfree(priv->rx_traffic); - priv->rx_traffic = NULL; -} -EXPORT_SYMBOL(iwl_legacy_free_traffic_mem); - -void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv, - u16 length, struct ieee80211_hdr *header) -{ - __le16 fc; - u16 len; - - if (likely(!(iwlegacy_debug_level & IWL_DL_TX))) - return; - - if (!priv->tx_traffic) - return; - - fc = header->frame_control; - if (ieee80211_is_data(fc)) { - len = (length > IWL_TRAFFIC_ENTRY_SIZE) - ? IWL_TRAFFIC_ENTRY_SIZE : length; - memcpy((priv->tx_traffic + - (priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), - header, len); - priv->tx_traffic_idx = - (priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; - } -} -EXPORT_SYMBOL(iwl_legacy_dbg_log_tx_data_frame); - -void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv, - u16 length, struct ieee80211_hdr *header) -{ - __le16 fc; - u16 len; - - if (likely(!(iwlegacy_debug_level & IWL_DL_RX))) - return; - - if (!priv->rx_traffic) - return; - - fc = header->frame_control; - if (ieee80211_is_data(fc)) { - len = (length > IWL_TRAFFIC_ENTRY_SIZE) - ? IWL_TRAFFIC_ENTRY_SIZE : length; - memcpy((priv->rx_traffic + - (priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), - header, len); - priv->rx_traffic_idx = - (priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; - } -} -EXPORT_SYMBOL(iwl_legacy_dbg_log_rx_data_frame); - -const char *iwl_legacy_get_mgmt_string(int cmd) -{ - switch (cmd) { - IWL_CMD(MANAGEMENT_ASSOC_REQ); - IWL_CMD(MANAGEMENT_ASSOC_RESP); - IWL_CMD(MANAGEMENT_REASSOC_REQ); - IWL_CMD(MANAGEMENT_REASSOC_RESP); - IWL_CMD(MANAGEMENT_PROBE_REQ); - IWL_CMD(MANAGEMENT_PROBE_RESP); - IWL_CMD(MANAGEMENT_BEACON); - IWL_CMD(MANAGEMENT_ATIM); - IWL_CMD(MANAGEMENT_DISASSOC); - IWL_CMD(MANAGEMENT_AUTH); - IWL_CMD(MANAGEMENT_DEAUTH); - IWL_CMD(MANAGEMENT_ACTION); - default: - return "UNKNOWN"; - - } -} - -const char *iwl_legacy_get_ctrl_string(int cmd) -{ - switch (cmd) { - IWL_CMD(CONTROL_BACK_REQ); - IWL_CMD(CONTROL_BACK); - IWL_CMD(CONTROL_PSPOLL); - IWL_CMD(CONTROL_RTS); - IWL_CMD(CONTROL_CTS); - IWL_CMD(CONTROL_ACK); - IWL_CMD(CONTROL_CFEND); - IWL_CMD(CONTROL_CFENDACK); - default: - return "UNKNOWN"; - - } -} - -void iwl_legacy_clear_traffic_stats(struct iwl_priv *priv) -{ - memset(&priv->tx_stats, 0, sizeof(struct traffic_stats)); - memset(&priv->rx_stats, 0, sizeof(struct traffic_stats)); -} - -/* - * if CONFIG_IWLWIFI_LEGACY_DEBUGFS defined, - * iwl_legacy_update_stats function will - * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass - * Use debugFs to display the rx/rx_statistics - * if CONFIG_IWLWIFI_LEGACY_DEBUGFS not being defined, then no MGMT and CTRL - * information will be recorded, but DATA pkt still will be recorded - * for the reason of iwl_led.c need to control the led blinking based on - * number of tx and rx data. - * - */ -void -iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len) -{ - struct traffic_stats *stats; - - if (is_tx) - stats = &priv->tx_stats; - else - stats = &priv->rx_stats; - - if (ieee80211_is_mgmt(fc)) { - switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { - case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): - stats->mgmt[MANAGEMENT_ASSOC_REQ]++; - break; - case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP): - stats->mgmt[MANAGEMENT_ASSOC_RESP]++; - break; - case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): - stats->mgmt[MANAGEMENT_REASSOC_REQ]++; - break; - case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP): - stats->mgmt[MANAGEMENT_REASSOC_RESP]++; - break; - case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ): - stats->mgmt[MANAGEMENT_PROBE_REQ]++; - break; - case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP): - stats->mgmt[MANAGEMENT_PROBE_RESP]++; - break; - case cpu_to_le16(IEEE80211_STYPE_BEACON): - stats->mgmt[MANAGEMENT_BEACON]++; - break; - case cpu_to_le16(IEEE80211_STYPE_ATIM): - stats->mgmt[MANAGEMENT_ATIM]++; - break; - case cpu_to_le16(IEEE80211_STYPE_DISASSOC): - stats->mgmt[MANAGEMENT_DISASSOC]++; - break; - case cpu_to_le16(IEEE80211_STYPE_AUTH): - stats->mgmt[MANAGEMENT_AUTH]++; - break; - case cpu_to_le16(IEEE80211_STYPE_DEAUTH): - stats->mgmt[MANAGEMENT_DEAUTH]++; - break; - case cpu_to_le16(IEEE80211_STYPE_ACTION): - stats->mgmt[MANAGEMENT_ACTION]++; - break; - } - } else if (ieee80211_is_ctl(fc)) { - switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { - case cpu_to_le16(IEEE80211_STYPE_BACK_REQ): - stats->ctrl[CONTROL_BACK_REQ]++; - break; - case cpu_to_le16(IEEE80211_STYPE_BACK): - stats->ctrl[CONTROL_BACK]++; - break; - case cpu_to_le16(IEEE80211_STYPE_PSPOLL): - stats->ctrl[CONTROL_PSPOLL]++; - break; - case cpu_to_le16(IEEE80211_STYPE_RTS): - stats->ctrl[CONTROL_RTS]++; - break; - case cpu_to_le16(IEEE80211_STYPE_CTS): - stats->ctrl[CONTROL_CTS]++; - break; - case cpu_to_le16(IEEE80211_STYPE_ACK): - stats->ctrl[CONTROL_ACK]++; - break; - case cpu_to_le16(IEEE80211_STYPE_CFEND): - stats->ctrl[CONTROL_CFEND]++; - break; - case cpu_to_le16(IEEE80211_STYPE_CFENDACK): - stats->ctrl[CONTROL_CFENDACK]++; - break; - } - } else { - /* data */ - stats->data_cnt++; - stats->data_bytes += len; - } -} -EXPORT_SYMBOL(iwl_legacy_update_stats); -#endif - -int iwl_legacy_force_reset(struct iwl_priv *priv, bool external) -{ - struct iwl_force_reset *force_reset; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return -EINVAL; - - force_reset = &priv->force_reset; - force_reset->reset_request_count++; - if (!external) { - if (force_reset->last_force_reset_jiffies && - time_after(force_reset->last_force_reset_jiffies + - force_reset->reset_duration, jiffies)) { - IWL_DEBUG_INFO(priv, "force reset rejected\n"); - force_reset->reset_reject_count++; - return -EAGAIN; - } - } - force_reset->reset_success_count++; - force_reset->last_force_reset_jiffies = jiffies; - - /* - * if the request is from external(ex: debugfs), - * then always perform the request in regardless the module - * parameter setting - * if the request is from internal (uCode error or driver - * detect failure), then fw_restart module parameter - * need to be check before performing firmware reload - */ - - if (!external && !priv->cfg->mod_params->restart_fw) { - IWL_DEBUG_INFO(priv, "Cancel firmware reload based on " - "module parameter setting\n"); - return 0; - } - - IWL_ERR(priv, "On demand firmware reload\n"); - - /* Set the FW error flag -- cleared on iwl_down */ - set_bit(STATUS_FW_ERROR, &priv->status); - wake_up(&priv->wait_command_queue); - /* - * Keep the restart process from trying to send host - * commands by clearing the INIT status bit - */ - clear_bit(STATUS_READY, &priv->status); - queue_work(priv->workqueue, &priv->restart); - - return 0; -} - -int -iwl_legacy_mac_change_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum nl80211_iftype newtype, bool newp2p) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif); - struct iwl_rxon_context *tmp; - u32 interface_modes; - int err; - - newtype = ieee80211_iftype_p2p(newtype, newp2p); - - mutex_lock(&priv->mutex); - - if (!ctx->vif || !iwl_legacy_is_ready_rf(priv)) { - /* - * Huh? But wait ... this can maybe happen when - * we're in the middle of a firmware restart! - */ - err = -EBUSY; - goto out; - } - - interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; - - if (!(interface_modes & BIT(newtype))) { - err = -EBUSY; - goto out; - } - - if (ctx->exclusive_interface_modes & BIT(newtype)) { - for_each_context(priv, tmp) { - if (ctx == tmp) - continue; - - if (!tmp->vif) - continue; - - /* - * The current mode switch would be exclusive, but - * another context is active ... refuse the switch. - */ - err = -EBUSY; - goto out; - } - } - - /* success */ - iwl_legacy_teardown_interface(priv, vif, true); - vif->type = newtype; - vif->p2p = newp2p; - err = iwl_legacy_setup_interface(priv, ctx); - WARN_ON(err); - /* - * We've switched internally, but submitting to the - * device may have failed for some reason. Mask this - * error, because otherwise mac80211 will not switch - * (and set the interface type back) and we'll be - * out of sync with it. - */ - err = 0; - - out: - mutex_unlock(&priv->mutex); - return err; -} -EXPORT_SYMBOL(iwl_legacy_mac_change_interface); - -/* - * On every watchdog tick we check (latest) time stamp. If it does not - * change during timeout period and queue is not empty we reset firmware. - */ -static int iwl_legacy_check_stuck_queue(struct iwl_priv *priv, int cnt) -{ - struct iwl_tx_queue *txq = &priv->txq[cnt]; - struct iwl_queue *q = &txq->q; - unsigned long timeout; - int ret; - - if (q->read_ptr == q->write_ptr) { - txq->time_stamp = jiffies; - return 0; - } - - timeout = txq->time_stamp + - msecs_to_jiffies(priv->cfg->base_params->wd_timeout); - - if (time_after(jiffies, timeout)) { - IWL_ERR(priv, "Queue %d stuck for %u ms.\n", - q->id, priv->cfg->base_params->wd_timeout); - ret = iwl_legacy_force_reset(priv, false); - return (ret == -EAGAIN) ? 0 : 1; - } - - return 0; -} - -/* - * Making watchdog tick be a quarter of timeout assure we will - * discover the queue hung between timeout and 1.25*timeout - */ -#define IWL_WD_TICK(timeout) ((timeout) / 4) - -/* - * Watchdog timer callback, we check each tx queue for stuck, if if hung - * we reset the firmware. If everything is fine just rearm the timer. - */ -void iwl_legacy_bg_watchdog(unsigned long data) -{ - struct iwl_priv *priv = (struct iwl_priv *)data; - int cnt; - unsigned long timeout; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - timeout = priv->cfg->base_params->wd_timeout; - if (timeout == 0) - return; - - /* monitor and check for stuck cmd queue */ - if (iwl_legacy_check_stuck_queue(priv, priv->cmd_queue)) - return; - - /* monitor and check for other stuck queues */ - if (iwl_legacy_is_any_associated(priv)) { - for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) { - /* skip as we already checked the command queue */ - if (cnt == priv->cmd_queue) - continue; - if (iwl_legacy_check_stuck_queue(priv, cnt)) - return; - } - } - - mod_timer(&priv->watchdog, jiffies + - msecs_to_jiffies(IWL_WD_TICK(timeout))); -} -EXPORT_SYMBOL(iwl_legacy_bg_watchdog); - -void iwl_legacy_setup_watchdog(struct iwl_priv *priv) -{ - unsigned int timeout = priv->cfg->base_params->wd_timeout; - - if (timeout) - mod_timer(&priv->watchdog, - jiffies + msecs_to_jiffies(IWL_WD_TICK(timeout))); - else - del_timer(&priv->watchdog); -} -EXPORT_SYMBOL(iwl_legacy_setup_watchdog); - -/* - * extended beacon time format - * time in usec will be changed into a 32-bit value in extended:internal format - * the extended part is the beacon counts - * the internal part is the time in usec within one beacon interval - */ -u32 -iwl_legacy_usecs_to_beacons(struct iwl_priv *priv, - u32 usec, u32 beacon_interval) -{ - u32 quot; - u32 rem; - u32 interval = beacon_interval * TIME_UNIT; - - if (!interval || !usec) - return 0; - - quot = (usec / interval) & - (iwl_legacy_beacon_time_mask_high(priv, - priv->hw_params.beacon_time_tsf_bits) >> - priv->hw_params.beacon_time_tsf_bits); - rem = (usec % interval) & iwl_legacy_beacon_time_mask_low(priv, - priv->hw_params.beacon_time_tsf_bits); - - return (quot << priv->hw_params.beacon_time_tsf_bits) + rem; -} -EXPORT_SYMBOL(iwl_legacy_usecs_to_beacons); - -/* base is usually what we get from ucode with each received frame, - * the same as HW timer counter counting down - */ -__le32 iwl_legacy_add_beacon_time(struct iwl_priv *priv, u32 base, - u32 addon, u32 beacon_interval) -{ - u32 base_low = base & iwl_legacy_beacon_time_mask_low(priv, - priv->hw_params.beacon_time_tsf_bits); - u32 addon_low = addon & iwl_legacy_beacon_time_mask_low(priv, - priv->hw_params.beacon_time_tsf_bits); - u32 interval = beacon_interval * TIME_UNIT; - u32 res = (base & iwl_legacy_beacon_time_mask_high(priv, - priv->hw_params.beacon_time_tsf_bits)) + - (addon & iwl_legacy_beacon_time_mask_high(priv, - priv->hw_params.beacon_time_tsf_bits)); - - if (base_low > addon_low) - res += base_low - addon_low; - else if (base_low < addon_low) { - res += interval + base_low - addon_low; - res += (1 << priv->hw_params.beacon_time_tsf_bits); - } else - res += (1 << priv->hw_params.beacon_time_tsf_bits); - - return cpu_to_le32(res); -} -EXPORT_SYMBOL(iwl_legacy_add_beacon_time); - -#ifdef CONFIG_PM - -int iwl_legacy_pci_suspend(struct device *device) -{ - struct pci_dev *pdev = to_pci_dev(device); - struct iwl_priv *priv = pci_get_drvdata(pdev); - - /* - * This function is called when system goes into suspend state - * mac80211 will call iwl_mac_stop() from the mac80211 suspend function - * first but since iwl_mac_stop() has no knowledge of who the caller is, - * it will not call apm_ops.stop() to stop the DMA operation. - * Calling apm_ops.stop here to make sure we stop the DMA. - */ - iwl_legacy_apm_stop(priv); - - return 0; -} -EXPORT_SYMBOL(iwl_legacy_pci_suspend); - -int iwl_legacy_pci_resume(struct device *device) -{ - struct pci_dev *pdev = to_pci_dev(device); - struct iwl_priv *priv = pci_get_drvdata(pdev); - bool hw_rfkill = false; - - /* - * We disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state. - */ - pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); - - iwl_legacy_enable_interrupts(priv); - - if (!(iwl_read32(priv, CSR_GP_CNTRL) & - CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) - hw_rfkill = true; - - if (hw_rfkill) - set_bit(STATUS_RF_KILL_HW, &priv->status); - else - clear_bit(STATUS_RF_KILL_HW, &priv->status); - - wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rfkill); - - return 0; -} -EXPORT_SYMBOL(iwl_legacy_pci_resume); - -const struct dev_pm_ops iwl_legacy_pm_ops = { - .suspend = iwl_legacy_pci_suspend, - .resume = iwl_legacy_pci_resume, - .freeze = iwl_legacy_pci_suspend, - .thaw = iwl_legacy_pci_resume, - .poweroff = iwl_legacy_pci_suspend, - .restore = iwl_legacy_pci_resume, -}; -EXPORT_SYMBOL(iwl_legacy_pm_ops); - -#endif /* CONFIG_PM */ - -static void -iwl_legacy_update_qos(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (!ctx->is_active) - return; - - ctx->qos_data.def_qos_parm.qos_flags = 0; - - if (ctx->qos_data.qos_active) - ctx->qos_data.def_qos_parm.qos_flags |= - QOS_PARAM_FLG_UPDATE_EDCA_MSK; - - if (ctx->ht.enabled) - ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; - - IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", - ctx->qos_data.qos_active, - ctx->qos_data.def_qos_parm.qos_flags); - - iwl_legacy_send_cmd_pdu_async(priv, ctx->qos_cmd, - sizeof(struct iwl_qosparam_cmd), - &ctx->qos_data.def_qos_parm, NULL); -} - -/** - * iwl_legacy_mac_config - mac80211 config callback - */ -int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed) -{ - struct iwl_priv *priv = hw->priv; - const struct iwl_channel_info *ch_info; - struct ieee80211_conf *conf = &hw->conf; - struct ieee80211_channel *channel = conf->channel; - struct iwl_ht_config *ht_conf = &priv->current_ht_config; - struct iwl_rxon_context *ctx; - unsigned long flags = 0; - int ret = 0; - u16 ch; - int scan_active = 0; - bool ht_changed[NUM_IWL_RXON_CTX] = {}; - - if (WARN_ON(!priv->cfg->ops->legacy)) - return -EOPNOTSUPP; - - mutex_lock(&priv->mutex); - - IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n", - channel->hw_value, changed); - - if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) { - scan_active = 1; - IWL_DEBUG_MAC80211(priv, "scan active\n"); - } - - if (changed & (IEEE80211_CONF_CHANGE_SMPS | - IEEE80211_CONF_CHANGE_CHANNEL)) { - /* mac80211 uses static for non-HT which is what we want */ - priv->current_ht_config.smps = conf->smps_mode; - - /* - * Recalculate chain counts. - * - * If monitor mode is enabled then mac80211 will - * set up the SM PS mode to OFF if an HT channel is - * configured. - */ - if (priv->cfg->ops->hcmd->set_rxon_chain) - for_each_context(priv, ctx) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - } - - /* during scanning mac80211 will delay channel setting until - * scan finish with changed = 0 - */ - if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) { - if (scan_active) - goto set_ch_out; - - ch = channel->hw_value; - ch_info = iwl_legacy_get_channel_info(priv, channel->band, ch); - if (!iwl_legacy_is_channel_valid(ch_info)) { - IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); - ret = -EINVAL; - goto set_ch_out; - } - - if (priv->iw_mode == NL80211_IFTYPE_ADHOC && - !iwl_legacy_is_channel_ibss(ch_info)) { - IWL_DEBUG_MAC80211(priv, "leave - not IBSS channel\n"); - ret = -EINVAL; - goto set_ch_out; - } - - spin_lock_irqsave(&priv->lock, flags); - - for_each_context(priv, ctx) { - /* Configure HT40 channels */ - if (ctx->ht.enabled != conf_is_ht(conf)) { - ctx->ht.enabled = conf_is_ht(conf); - ht_changed[ctx->ctxid] = true; - } - if (ctx->ht.enabled) { - if (conf_is_ht40_minus(conf)) { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_BELOW; - ctx->ht.is_40mhz = true; - } else if (conf_is_ht40_plus(conf)) { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_ABOVE; - ctx->ht.is_40mhz = true; - } else { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_NONE; - ctx->ht.is_40mhz = false; - } - } else - ctx->ht.is_40mhz = false; - - /* - * Default to no protection. Protection mode will - * later be set from BSS config in iwl_ht_conf - */ - ctx->ht.protection = - IEEE80211_HT_OP_MODE_PROTECTION_NONE; - - /* if we are switching from ht to 2.4 clear flags - * from any ht related info since 2.4 does not - * support ht */ - if ((le16_to_cpu(ctx->staging.channel) != ch)) - ctx->staging.flags = 0; - - iwl_legacy_set_rxon_channel(priv, channel, ctx); - iwl_legacy_set_rxon_ht(priv, ht_conf); - - iwl_legacy_set_flags_for_band(priv, ctx, channel->band, - ctx->vif); - } - - spin_unlock_irqrestore(&priv->lock, flags); - - if (priv->cfg->ops->legacy->update_bcast_stations) - ret = - priv->cfg->ops->legacy->update_bcast_stations(priv); - - set_ch_out: - /* The list of supported rates and rate mask can be different - * for each band; since the band may have changed, reset - * the rate mask to what mac80211 lists */ - iwl_legacy_set_rate(priv); - } - - if (changed & (IEEE80211_CONF_CHANGE_PS | - IEEE80211_CONF_CHANGE_IDLE)) { - ret = iwl_legacy_power_update_mode(priv, false); - if (ret) - IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n"); - } - - if (changed & IEEE80211_CONF_CHANGE_POWER) { - IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", - priv->tx_power_user_lmt, conf->power_level); - - iwl_legacy_set_tx_power(priv, conf->power_level, false); - } - - if (!iwl_legacy_is_ready(priv)) { - IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); - goto out; - } - - if (scan_active) - goto out; - - for_each_context(priv, ctx) { - if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging))) - iwl_legacy_commit_rxon(priv, ctx); - else - IWL_DEBUG_INFO(priv, - "Not re-sending same RXON configuration.\n"); - if (ht_changed[ctx->ctxid]) - iwl_legacy_update_qos(priv, ctx); - } - -out: - IWL_DEBUG_MAC80211(priv, "leave\n"); - mutex_unlock(&priv->mutex); - return ret; -} -EXPORT_SYMBOL(iwl_legacy_mac_config); - -void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct iwl_priv *priv = hw->priv; - unsigned long flags; - /* IBSS can only be the IWL_RXON_CTX_BSS context */ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - if (WARN_ON(!priv->cfg->ops->legacy)) - return; - - mutex_lock(&priv->mutex); - IWL_DEBUG_MAC80211(priv, "enter\n"); - - spin_lock_irqsave(&priv->lock, flags); - memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config)); - spin_unlock_irqrestore(&priv->lock, flags); - - spin_lock_irqsave(&priv->lock, flags); - - /* new association get rid of ibss beacon skb */ - if (priv->beacon_skb) - dev_kfree_skb(priv->beacon_skb); - - priv->beacon_skb = NULL; - - priv->timestamp = 0; - - spin_unlock_irqrestore(&priv->lock, flags); - - iwl_legacy_scan_cancel_timeout(priv, 100); - if (!iwl_legacy_is_ready_rf(priv)) { - IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); - mutex_unlock(&priv->mutex); - return; - } - - /* we are restarting association process - * clear RXON_FILTER_ASSOC_MSK bit - */ - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwl_legacy_commit_rxon(priv, ctx); - - iwl_legacy_set_rate(priv); - - mutex_unlock(&priv->mutex); - - IWL_DEBUG_MAC80211(priv, "leave\n"); -} -EXPORT_SYMBOL(iwl_legacy_mac_reset_tsf); - -static void iwl_legacy_ht_conf(struct iwl_priv *priv, - struct ieee80211_vif *vif) -{ - struct iwl_ht_config *ht_conf = &priv->current_ht_config; - struct ieee80211_sta *sta; - struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; - struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif); - - IWL_DEBUG_ASSOC(priv, "enter:\n"); - - if (!ctx->ht.enabled) - return; - - ctx->ht.protection = - bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; - ctx->ht.non_gf_sta_present = - !!(bss_conf->ht_operation_mode & - IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); - - ht_conf->single_chain_sufficient = false; - - switch (vif->type) { - case NL80211_IFTYPE_STATION: - rcu_read_lock(); - sta = ieee80211_find_sta(vif, bss_conf->bssid); - if (sta) { - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; - int maxstreams; - - maxstreams = (ht_cap->mcs.tx_params & - IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) - >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; - maxstreams += 1; - - if ((ht_cap->mcs.rx_mask[1] == 0) && - (ht_cap->mcs.rx_mask[2] == 0)) - ht_conf->single_chain_sufficient = true; - if (maxstreams <= 1) - ht_conf->single_chain_sufficient = true; - } else { - /* - * If at all, this can only happen through a race - * when the AP disconnects us while we're still - * setting up the connection, in that case mac80211 - * will soon tell us about that. - */ - ht_conf->single_chain_sufficient = true; - } - rcu_read_unlock(); - break; - case NL80211_IFTYPE_ADHOC: - ht_conf->single_chain_sufficient = true; - break; - default: - break; - } - - IWL_DEBUG_ASSOC(priv, "leave\n"); -} - -static inline void iwl_legacy_set_no_assoc(struct iwl_priv *priv, - struct ieee80211_vif *vif) -{ - struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif); - - /* - * inform the ucode that there is no longer an - * association and that no more packets should be - * sent - */ - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - ctx->staging.assoc_id = 0; - iwl_legacy_commit_rxon(priv, ctx); -} - -static void iwl_legacy_beacon_update(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct iwl_priv *priv = hw->priv; - unsigned long flags; - __le64 timestamp; - struct sk_buff *skb = ieee80211_beacon_get(hw, vif); - - if (!skb) - return; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - lockdep_assert_held(&priv->mutex); - - if (!priv->beacon_ctx) { - IWL_ERR(priv, "update beacon but no beacon context!\n"); - dev_kfree_skb(skb); - return; - } - - spin_lock_irqsave(&priv->lock, flags); - - if (priv->beacon_skb) - dev_kfree_skb(priv->beacon_skb); - - priv->beacon_skb = skb; - - timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; - priv->timestamp = le64_to_cpu(timestamp); - - IWL_DEBUG_MAC80211(priv, "leave\n"); - spin_unlock_irqrestore(&priv->lock, flags); - - if (!iwl_legacy_is_ready_rf(priv)) { - IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); - return; - } - - priv->cfg->ops->legacy->post_associate(priv); -} - -void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *bss_conf, - u32 changes) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif); - int ret; - - if (WARN_ON(!priv->cfg->ops->legacy)) - return; - - IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes); - - mutex_lock(&priv->mutex); - - if (!iwl_legacy_is_alive(priv)) { - mutex_unlock(&priv->mutex); - return; - } - - if (changes & BSS_CHANGED_QOS) { - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - ctx->qos_data.qos_active = bss_conf->qos; - iwl_legacy_update_qos(priv, ctx); - spin_unlock_irqrestore(&priv->lock, flags); - } - - if (changes & BSS_CHANGED_BEACON_ENABLED) { - /* - * the add_interface code must make sure we only ever - * have a single interface that could be beaconing at - * any time. - */ - if (vif->bss_conf.enable_beacon) - priv->beacon_ctx = ctx; - else - priv->beacon_ctx = NULL; - } - - if (changes & BSS_CHANGED_BSSID) { - IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid); - - /* - * If there is currently a HW scan going on in the - * background then we need to cancel it else the RXON - * below/in post_associate will fail. - */ - if (iwl_legacy_scan_cancel_timeout(priv, 100)) { - IWL_WARN(priv, - "Aborted scan still in progress after 100ms\n"); - IWL_DEBUG_MAC80211(priv, - "leaving - scan abort failed.\n"); - mutex_unlock(&priv->mutex); - return; - } - - /* mac80211 only sets assoc when in STATION mode */ - if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) { - memcpy(ctx->staging.bssid_addr, - bss_conf->bssid, ETH_ALEN); - - /* currently needed in a few places */ - memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); - } else { - ctx->staging.filter_flags &= - ~RXON_FILTER_ASSOC_MSK; - } - - } - - /* - * This needs to be after setting the BSSID in case - * mac80211 decides to do both changes at once because - * it will invoke post_associate. - */ - if (vif->type == NL80211_IFTYPE_ADHOC && changes & BSS_CHANGED_BEACON) - iwl_legacy_beacon_update(hw, vif); - - if (changes & BSS_CHANGED_ERP_PREAMBLE) { - IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", - bss_conf->use_short_preamble); - if (bss_conf->use_short_preamble) - ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; - else - ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; - } - - if (changes & BSS_CHANGED_ERP_CTS_PROT) { - IWL_DEBUG_MAC80211(priv, - "ERP_CTS %d\n", bss_conf->use_cts_prot); - if (bss_conf->use_cts_prot && - (priv->band != IEEE80211_BAND_5GHZ)) - ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; - else - ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK; - if (bss_conf->use_cts_prot) - ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; - else - ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN; - } - - if (changes & BSS_CHANGED_BASIC_RATES) { - /* XXX use this information - * - * To do that, remove code from iwl_legacy_set_rate() and put something - * like this here: - * - if (A-band) - ctx->staging.ofdm_basic_rates = - bss_conf->basic_rates; - else - ctx->staging.ofdm_basic_rates = - bss_conf->basic_rates >> 4; - ctx->staging.cck_basic_rates = - bss_conf->basic_rates & 0xF; - */ - } - - if (changes & BSS_CHANGED_HT) { - iwl_legacy_ht_conf(priv, vif); - - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - } - - if (changes & BSS_CHANGED_ASSOC) { - IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc); - if (bss_conf->assoc) { - priv->timestamp = bss_conf->timestamp; - - if (!iwl_legacy_is_rfkill(priv)) - priv->cfg->ops->legacy->post_associate(priv); - } else - iwl_legacy_set_no_assoc(priv, vif); - } - - if (changes && iwl_legacy_is_associated_ctx(ctx) && bss_conf->aid) { - IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n", - changes); - ret = iwl_legacy_send_rxon_assoc(priv, ctx); - if (!ret) { - /* Sync active_rxon with latest change. */ - memcpy((void *)&ctx->active, - &ctx->staging, - sizeof(struct iwl_legacy_rxon_cmd)); - } - } - - if (changes & BSS_CHANGED_BEACON_ENABLED) { - if (vif->bss_conf.enable_beacon) { - memcpy(ctx->staging.bssid_addr, - bss_conf->bssid, ETH_ALEN); - memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); - priv->cfg->ops->legacy->config_ap(priv); - } else - iwl_legacy_set_no_assoc(priv, vif); - } - - if (changes & BSS_CHANGED_IBSS) { - ret = priv->cfg->ops->legacy->manage_ibss_station(priv, vif, - bss_conf->ibss_joined); - if (ret) - IWL_ERR(priv, "failed to %s IBSS station %pM\n", - bss_conf->ibss_joined ? "add" : "remove", - bss_conf->bssid); - } - - mutex_unlock(&priv->mutex); - - IWL_DEBUG_MAC80211(priv, "leave\n"); -} -EXPORT_SYMBOL(iwl_legacy_mac_bss_info_changed); - -irqreturn_t iwl_legacy_isr(int irq, void *data) -{ - struct iwl_priv *priv = data; - u32 inta, inta_mask; - u32 inta_fh; - unsigned long flags; - if (!priv) - return IRQ_NONE; - - spin_lock_irqsave(&priv->lock, flags); - - /* Disable (but don't clear!) interrupts here to avoid - * back-to-back ISRs and sporadic interrupts from our NIC. - * If we have something to service, the tasklet will re-enable ints. - * If we *don't* have something, we'll re-enable before leaving here. */ - inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ - iwl_write32(priv, CSR_INT_MASK, 0x00000000); - - /* Discover which interrupts are active/pending */ - inta = iwl_read32(priv, CSR_INT); - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - - /* Ignore interrupt if there's nothing in NIC to service. - * This may be due to IRQ shared with another device, - * or due to sporadic interrupts thrown from our NIC. */ - if (!inta && !inta_fh) { - IWL_DEBUG_ISR(priv, - "Ignore interrupt, inta == 0, inta_fh == 0\n"); - goto none; - } - - if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { - /* Hardware disappeared. It might have already raised - * an interrupt */ - IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); - goto unplugged; - } - - IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", - inta, inta_mask, inta_fh); - - inta &= ~CSR_INT_BIT_SCD; - - /* iwl_irq_tasklet() will service interrupts and re-enable them */ - if (likely(inta || inta_fh)) - tasklet_schedule(&priv->irq_tasklet); - -unplugged: - spin_unlock_irqrestore(&priv->lock, flags); - return IRQ_HANDLED; - -none: - /* re-enable interrupts here since we don't have anything to service. */ - /* only Re-enable if disabled by irq */ - if (test_bit(STATUS_INT_ENABLED, &priv->status)) - iwl_legacy_enable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - return IRQ_NONE; -} -EXPORT_SYMBOL(iwl_legacy_isr); - -/* - * iwl_legacy_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this - * function. - */ -void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv, - struct ieee80211_tx_info *info, - __le16 fc, __le32 *tx_flags) -{ - if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { - *tx_flags |= TX_CMD_FLG_RTS_MSK; - *tx_flags &= ~TX_CMD_FLG_CTS_MSK; - *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; - - if (!ieee80211_is_mgmt(fc)) - return; - - switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { - case cpu_to_le16(IEEE80211_STYPE_AUTH): - case cpu_to_le16(IEEE80211_STYPE_DEAUTH): - case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): - case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): - *tx_flags &= ~TX_CMD_FLG_RTS_MSK; - *tx_flags |= TX_CMD_FLG_CTS_MSK; - break; - } - } else if (info->control.rates[0].flags & - IEEE80211_TX_RC_USE_CTS_PROTECT) { - *tx_flags &= ~TX_CMD_FLG_RTS_MSK; - *tx_flags |= TX_CMD_FLG_CTS_MSK; - *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; - } -} -EXPORT_SYMBOL(iwl_legacy_tx_cmd_protection); diff --git a/drivers/net/wireless/iwlegacy/iwl-core.h b/drivers/net/wireless/iwlegacy/iwl-core.h deleted file mode 100644 index d1271fe07d4b..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-core.h +++ /dev/null @@ -1,636 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - *****************************************************************************/ - -#ifndef __iwl_legacy_core_h__ -#define __iwl_legacy_core_h__ - -/************************ - * forward declarations * - ************************/ -struct iwl_host_cmd; -struct iwl_cmd; - - -#define IWLWIFI_VERSION "in-tree:" -#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation" -#define DRV_AUTHOR "<ilw@linux.intel.com>" - -#define IWL_PCI_DEVICE(dev, subdev, cfg) \ - .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \ - .subvendor = PCI_ANY_ID, .subdevice = (subdev), \ - .driver_data = (kernel_ulong_t)&(cfg) - -#define TIME_UNIT 1024 - -#define IWL_SKU_G 0x1 -#define IWL_SKU_A 0x2 -#define IWL_SKU_N 0x8 - -#define IWL_CMD(x) case x: return #x - -struct iwl_hcmd_ops { - int (*rxon_assoc)(struct iwl_priv *priv, struct iwl_rxon_context *ctx); - int (*commit_rxon)(struct iwl_priv *priv, struct iwl_rxon_context *ctx); - void (*set_rxon_chain)(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -}; - -struct iwl_hcmd_utils_ops { - u16 (*get_hcmd_size)(u8 cmd_id, u16 len); - u16 (*build_addsta_hcmd)(const struct iwl_legacy_addsta_cmd *cmd, - u8 *data); - int (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif); - void (*post_scan)(struct iwl_priv *priv); -}; - -struct iwl_apm_ops { - int (*init)(struct iwl_priv *priv); - void (*config)(struct iwl_priv *priv); -}; - -struct iwl_debugfs_ops { - ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos); - ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos); - ssize_t (*general_stats_read)(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos); -}; - -struct iwl_temp_ops { - void (*temperature)(struct iwl_priv *priv); -}; - -struct iwl_lib_ops { - /* set hw dependent parameters */ - int (*set_hw_params)(struct iwl_priv *priv); - /* Handling TX */ - void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - u16 byte_cnt); - int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - dma_addr_t addr, - u16 len, u8 reset, u8 pad); - void (*txq_free_tfd)(struct iwl_priv *priv, - struct iwl_tx_queue *txq); - int (*txq_init)(struct iwl_priv *priv, - struct iwl_tx_queue *txq); - /* setup Rx handler */ - void (*rx_handler_setup)(struct iwl_priv *priv); - /* alive notification after init uCode load */ - void (*init_alive_start)(struct iwl_priv *priv); - /* check validity of rtc data address */ - int (*is_valid_rtc_data_addr)(u32 addr); - /* 1st ucode load */ - int (*load_ucode)(struct iwl_priv *priv); - - void (*dump_nic_error_log)(struct iwl_priv *priv); - int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display); - int (*set_channel_switch)(struct iwl_priv *priv, - struct ieee80211_channel_switch *ch_switch); - /* power management */ - struct iwl_apm_ops apm_ops; - - /* power */ - int (*send_tx_power) (struct iwl_priv *priv); - void (*update_chain_flags)(struct iwl_priv *priv); - - /* eeprom operations (as defined in iwl-eeprom.h) */ - struct iwl_eeprom_ops eeprom_ops; - - /* temperature */ - struct iwl_temp_ops temp_ops; - - struct iwl_debugfs_ops debugfs_ops; - -}; - -struct iwl_led_ops { - int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd); -}; - -struct iwl_legacy_ops { - void (*post_associate)(struct iwl_priv *priv); - void (*config_ap)(struct iwl_priv *priv); - /* station management */ - int (*update_bcast_stations)(struct iwl_priv *priv); - int (*manage_ibss_station)(struct iwl_priv *priv, - struct ieee80211_vif *vif, bool add); -}; - -struct iwl_ops { - const struct iwl_lib_ops *lib; - const struct iwl_hcmd_ops *hcmd; - const struct iwl_hcmd_utils_ops *utils; - const struct iwl_led_ops *led; - const struct iwl_nic_ops *nic; - const struct iwl_legacy_ops *legacy; - const struct ieee80211_ops *ieee80211_ops; -}; - -struct iwl_mod_params { - int sw_crypto; /* def: 0 = using hardware encryption */ - int disable_hw_scan; /* def: 0 = use h/w scan */ - int num_of_queues; /* def: HW dependent */ - int disable_11n; /* def: 0 = 11n capabilities enabled */ - int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */ - int antenna; /* def: 0 = both antennas (use diversity) */ - int restart_fw; /* def: 1 = restart firmware */ -}; - -/* - * @led_compensation: compensate on the led on/off time per HW according - * to the deviation to achieve the desired led frequency. - * The detail algorithm is described in iwl-led.c - * @chain_noise_num_beacons: number of beacons used to compute chain noise - * @wd_timeout: TX queues watchdog timeout - * @temperature_kelvin: temperature report by uCode in kelvin - * @ucode_tracing: support ucode continuous tracing - * @sensitivity_calib_by_driver: driver has the capability to perform - * sensitivity calibration operation - * @chain_noise_calib_by_driver: driver has the capability to perform - * chain noise calibration operation - */ -struct iwl_base_params { - int eeprom_size; - int num_of_queues; /* def: HW dependent */ - int num_of_ampdu_queues;/* def: HW dependent */ - /* for iwl_legacy_apm_init() */ - u32 pll_cfg_val; - bool set_l0s; - bool use_bsm; - - u16 led_compensation; - int chain_noise_num_beacons; - unsigned int wd_timeout; - bool temperature_kelvin; - const bool ucode_tracing; - const bool sensitivity_calib_by_driver; - const bool chain_noise_calib_by_driver; -}; - -/** - * struct iwl_cfg - * @fw_name_pre: Firmware filename prefix. The api version and extension - * (.ucode) will be added to filename before loading from disk. The - * filename is constructed as fw_name_pre<api>.ucode. - * @ucode_api_max: Highest version of uCode API supported by driver. - * @ucode_api_min: Lowest version of uCode API supported by driver. - * @scan_antennas: available antenna for scan operation - * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off) - * - * We enable the driver to be backward compatible wrt API version. The - * driver specifies which APIs it supports (with @ucode_api_max being the - * highest and @ucode_api_min the lowest). Firmware will only be loaded if - * it has a supported API version. The firmware's API version will be - * stored in @iwl_priv, enabling the driver to make runtime changes based - * on firmware version used. - * - * For example, - * if (IWL_UCODE_API(priv->ucode_ver) >= 2) { - * Driver interacts with Firmware API version >= 2. - * } else { - * Driver interacts with Firmware API version 1. - * } - * - * The ideal usage of this infrastructure is to treat a new ucode API - * release as a new hardware revision. That is, through utilizing the - * iwl_hcmd_utils_ops etc. we accommodate different command structures - * and flows between hardware versions as well as their API - * versions. - * - */ -struct iwl_cfg { - /* params specific to an individual device within a device family */ - const char *name; - const char *fw_name_pre; - const unsigned int ucode_api_max; - const unsigned int ucode_api_min; - u8 valid_tx_ant; - u8 valid_rx_ant; - unsigned int sku; - u16 eeprom_ver; - u16 eeprom_calib_ver; - const struct iwl_ops *ops; - /* module based parameters which can be set from modprobe cmd */ - const struct iwl_mod_params *mod_params; - /* params not likely to change within a device family */ - struct iwl_base_params *base_params; - /* params likely to change within a device family */ - u8 scan_rx_antennas[IEEE80211_NUM_BANDS]; - enum iwl_led_mode led_mode; -}; - -/*************************** - * L i b * - ***************************/ - -struct ieee80211_hw *iwl_legacy_alloc_all(struct iwl_cfg *cfg); -int iwl_legacy_mac_conf_tx(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, u16 queue, - const struct ieee80211_tx_queue_params *params); -int iwl_legacy_mac_tx_last_beacon(struct ieee80211_hw *hw); -void iwl_legacy_set_rxon_hwcrypto(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - int hw_decrypt); -int iwl_legacy_check_rxon_cmd(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -int iwl_legacy_full_rxon_required(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -int iwl_legacy_set_rxon_channel(struct iwl_priv *priv, - struct ieee80211_channel *ch, - struct iwl_rxon_context *ctx); -void iwl_legacy_set_flags_for_band(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - enum ieee80211_band band, - struct ieee80211_vif *vif); -u8 iwl_legacy_get_single_channel_number(struct iwl_priv *priv, - enum ieee80211_band band); -void iwl_legacy_set_rxon_ht(struct iwl_priv *priv, - struct iwl_ht_config *ht_conf); -bool iwl_legacy_is_ht40_tx_allowed(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct ieee80211_sta_ht_cap *ht_cap); -void iwl_legacy_connection_init_rx_config(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -void iwl_legacy_set_rate(struct iwl_priv *priv); -int iwl_legacy_set_decrypted_flag(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, - u32 decrypt_res, - struct ieee80211_rx_status *stats); -void iwl_legacy_irq_handle_error(struct iwl_priv *priv); -int iwl_legacy_mac_add_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif); -void iwl_legacy_mac_remove_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif); -int iwl_legacy_mac_change_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum nl80211_iftype newtype, bool newp2p); -int iwl_legacy_alloc_txq_mem(struct iwl_priv *priv); -void iwl_legacy_txq_mem(struct iwl_priv *priv); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS -int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv); -void iwl_legacy_free_traffic_mem(struct iwl_priv *priv); -void iwl_legacy_reset_traffic_log(struct iwl_priv *priv); -void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv, - u16 length, struct ieee80211_hdr *header); -void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv, - u16 length, struct ieee80211_hdr *header); -const char *iwl_legacy_get_mgmt_string(int cmd); -const char *iwl_legacy_get_ctrl_string(int cmd); -void iwl_legacy_clear_traffic_stats(struct iwl_priv *priv); -void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, - u16 len); -#else -static inline int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv) -{ - return 0; -} -static inline void iwl_legacy_free_traffic_mem(struct iwl_priv *priv) -{ -} -static inline void iwl_legacy_reset_traffic_log(struct iwl_priv *priv) -{ -} -static inline void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv, - u16 length, struct ieee80211_hdr *header) -{ -} -static inline void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv, - u16 length, struct ieee80211_hdr *header) -{ -} -static inline void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx, - __le16 fc, u16 len) -{ -} -#endif -/***************************************************** - * RX handlers. - * **************************************************/ -void iwl_legacy_rx_pm_sleep_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -void iwl_legacy_rx_pm_debug_statistics_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -void iwl_legacy_rx_reply_error(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); - -/***************************************************** -* RX -******************************************************/ -void iwl_legacy_cmd_queue_unmap(struct iwl_priv *priv); -void iwl_legacy_cmd_queue_free(struct iwl_priv *priv); -int iwl_legacy_rx_queue_alloc(struct iwl_priv *priv); -void iwl_legacy_rx_queue_update_write_ptr(struct iwl_priv *priv, - struct iwl_rx_queue *q); -int iwl_legacy_rx_queue_space(const struct iwl_rx_queue *q); -void iwl_legacy_tx_cmd_complete(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -/* Handlers */ -void iwl_legacy_rx_spectrum_measure_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); -void iwl_legacy_recover_from_statistics(struct iwl_priv *priv, - struct iwl_rx_packet *pkt); -void iwl_legacy_chswitch_done(struct iwl_priv *priv, bool is_success); -void iwl_legacy_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); - -/* TX helpers */ - -/***************************************************** -* TX -******************************************************/ -void iwl_legacy_txq_update_write_ptr(struct iwl_priv *priv, - struct iwl_tx_queue *txq); -int iwl_legacy_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id); -void iwl_legacy_tx_queue_reset(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - int slots_num, u32 txq_id); -void iwl_legacy_tx_queue_unmap(struct iwl_priv *priv, int txq_id); -void iwl_legacy_tx_queue_free(struct iwl_priv *priv, int txq_id); -void iwl_legacy_setup_watchdog(struct iwl_priv *priv); -/***************************************************** - * TX power - ****************************************************/ -int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force); - -/******************************************************************************* - * Rate - ******************************************************************************/ - -u8 iwl_legacy_get_lowest_plcp(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); - -/******************************************************************************* - * Scanning - ******************************************************************************/ -void iwl_legacy_init_scan_params(struct iwl_priv *priv); -int iwl_legacy_scan_cancel(struct iwl_priv *priv); -int iwl_legacy_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms); -void iwl_legacy_force_scan_end(struct iwl_priv *priv); -int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct cfg80211_scan_request *req); -void iwl_legacy_internal_short_hw_scan(struct iwl_priv *priv); -int iwl_legacy_force_reset(struct iwl_priv *priv, bool external); -u16 iwl_legacy_fill_probe_req(struct iwl_priv *priv, - struct ieee80211_mgmt *frame, - const u8 *ta, const u8 *ie, int ie_len, int left); -void iwl_legacy_setup_rx_scan_handlers(struct iwl_priv *priv); -u16 iwl_legacy_get_active_dwell_time(struct iwl_priv *priv, - enum ieee80211_band band, - u8 n_probes); -u16 iwl_legacy_get_passive_dwell_time(struct iwl_priv *priv, - enum ieee80211_band band, - struct ieee80211_vif *vif); -void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv); -void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv); - -/* For faster active scanning, scan will move to the next channel if fewer than - * PLCP_QUIET_THRESH packets are heard on this channel within - * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell - * time if it's a quiet channel (nothing responded to our probe, and there's - * no other traffic). - * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ -#define IWL_ACTIVE_QUIET_TIME cpu_to_le16(10) /* msec */ -#define IWL_PLCP_QUIET_THRESH cpu_to_le16(1) /* packets */ - -#define IWL_SCAN_CHECK_WATCHDOG (HZ * 7) - -/***************************************************** - * S e n d i n g H o s t C o m m a n d s * - *****************************************************/ - -const char *iwl_legacy_get_cmd_string(u8 cmd); -int __must_check iwl_legacy_send_cmd_sync(struct iwl_priv *priv, - struct iwl_host_cmd *cmd); -int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); -int __must_check iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id, - u16 len, const void *data); -int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len, - const void *data, - void (*callback)(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct iwl_rx_packet *pkt)); - -int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); - - -/***************************************************** - * PCI * - *****************************************************/ - -static inline u16 iwl_legacy_pcie_link_ctl(struct iwl_priv *priv) -{ - int pos; - u16 pci_lnk_ctl; - pos = pci_pcie_cap(priv->pci_dev); - pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl); - return pci_lnk_ctl; -} - -void iwl_legacy_bg_watchdog(unsigned long data); -u32 iwl_legacy_usecs_to_beacons(struct iwl_priv *priv, - u32 usec, u32 beacon_interval); -__le32 iwl_legacy_add_beacon_time(struct iwl_priv *priv, u32 base, - u32 addon, u32 beacon_interval); - -#ifdef CONFIG_PM -int iwl_legacy_pci_suspend(struct device *device); -int iwl_legacy_pci_resume(struct device *device); -extern const struct dev_pm_ops iwl_legacy_pm_ops; - -#define IWL_LEGACY_PM_OPS (&iwl_legacy_pm_ops) - -#else /* !CONFIG_PM */ - -#define IWL_LEGACY_PM_OPS NULL - -#endif /* !CONFIG_PM */ - -/***************************************************** -* Error Handling Debugging -******************************************************/ -void iwl4965_dump_nic_error_log(struct iwl_priv *priv); -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -#else -static inline void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ -} -#endif - -void iwl_legacy_clear_isr_stats(struct iwl_priv *priv); - -/***************************************************** -* GEOS -******************************************************/ -int iwl_legacy_init_geos(struct iwl_priv *priv); -void iwl_legacy_free_geos(struct iwl_priv *priv); - -/*************** DRIVER STATUS FUNCTIONS *****/ - -#define STATUS_HCMD_ACTIVE 0 /* host command in progress */ -/* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */ -#define STATUS_INT_ENABLED 2 -#define STATUS_RF_KILL_HW 3 -#define STATUS_CT_KILL 4 -#define STATUS_INIT 5 -#define STATUS_ALIVE 6 -#define STATUS_READY 7 -#define STATUS_TEMPERATURE 8 -#define STATUS_GEO_CONFIGURED 9 -#define STATUS_EXIT_PENDING 10 -#define STATUS_STATISTICS 12 -#define STATUS_SCANNING 13 -#define STATUS_SCAN_ABORTING 14 -#define STATUS_SCAN_HW 15 -#define STATUS_POWER_PMI 16 -#define STATUS_FW_ERROR 17 -#define STATUS_CHANNEL_SWITCH_PENDING 18 - -static inline int iwl_legacy_is_ready(struct iwl_priv *priv) -{ - /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are - * set but EXIT_PENDING is not */ - return test_bit(STATUS_READY, &priv->status) && - test_bit(STATUS_GEO_CONFIGURED, &priv->status) && - !test_bit(STATUS_EXIT_PENDING, &priv->status); -} - -static inline int iwl_legacy_is_alive(struct iwl_priv *priv) -{ - return test_bit(STATUS_ALIVE, &priv->status); -} - -static inline int iwl_legacy_is_init(struct iwl_priv *priv) -{ - return test_bit(STATUS_INIT, &priv->status); -} - -static inline int iwl_legacy_is_rfkill_hw(struct iwl_priv *priv) -{ - return test_bit(STATUS_RF_KILL_HW, &priv->status); -} - -static inline int iwl_legacy_is_rfkill(struct iwl_priv *priv) -{ - return iwl_legacy_is_rfkill_hw(priv); -} - -static inline int iwl_legacy_is_ctkill(struct iwl_priv *priv) -{ - return test_bit(STATUS_CT_KILL, &priv->status); -} - -static inline int iwl_legacy_is_ready_rf(struct iwl_priv *priv) -{ - - if (iwl_legacy_is_rfkill(priv)) - return 0; - - return iwl_legacy_is_ready(priv); -} - -extern void iwl_legacy_send_bt_config(struct iwl_priv *priv); -extern int iwl_legacy_send_statistics_request(struct iwl_priv *priv, - u8 flags, bool clear); -void iwl_legacy_apm_stop(struct iwl_priv *priv); -int iwl_legacy_apm_init(struct iwl_priv *priv); - -int iwl_legacy_send_rxon_timing(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -static inline int iwl_legacy_send_rxon_assoc(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx); -} -static inline int iwl_legacy_commit_rxon(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) -{ - return priv->cfg->ops->hcmd->commit_rxon(priv, ctx); -} -static inline const struct ieee80211_supported_band *iwl_get_hw_mode( - struct iwl_priv *priv, enum ieee80211_band band) -{ - return priv->hw->wiphy->bands[band]; -} - -/* mac80211 handlers */ -int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed); -void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw, - struct ieee80211_vif *vif); -void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *bss_conf, - u32 changes); -void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv, - struct ieee80211_tx_info *info, - __le16 fc, __le32 *tx_flags); - -irqreturn_t iwl_legacy_isr(int irq, void *data); - -#endif /* __iwl_legacy_core_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-debug.h b/drivers/net/wireless/iwlegacy/iwl-debug.h deleted file mode 100644 index ae13112701bf..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-debug.h +++ /dev/null @@ -1,198 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __iwl_legacy_debug_h__ -#define __iwl_legacy_debug_h__ - -struct iwl_priv; -extern u32 iwlegacy_debug_level; - -#define IWL_ERR(p, f, a...) dev_err(&((p)->pci_dev->dev), f, ## a) -#define IWL_WARN(p, f, a...) dev_warn(&((p)->pci_dev->dev), f, ## a) -#define IWL_INFO(p, f, a...) dev_info(&((p)->pci_dev->dev), f, ## a) -#define IWL_CRIT(p, f, a...) dev_crit(&((p)->pci_dev->dev), f, ## a) - -#define iwl_print_hex_error(priv, p, len) \ -do { \ - print_hex_dump(KERN_ERR, "iwl data: ", \ - DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ -} while (0) - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -#define IWL_DEBUG(__priv, level, fmt, args...) \ -do { \ - if (iwl_legacy_get_debug_level(__priv) & (level)) \ - dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \ - "%c %s " fmt, in_interrupt() ? 'I' : 'U', \ - __func__ , ## args); \ -} while (0) - -#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) \ -do { \ - if ((iwl_legacy_get_debug_level(__priv) & (level)) && net_ratelimit()) \ - dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \ - "%c %s " fmt, in_interrupt() ? 'I' : 'U', \ - __func__ , ## args); \ -} while (0) - -#define iwl_print_hex_dump(priv, level, p, len) \ -do { \ - if (iwl_legacy_get_debug_level(priv) & level) \ - print_hex_dump(KERN_DEBUG, "iwl data: ", \ - DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ -} while (0) - -#else -#define IWL_DEBUG(__priv, level, fmt, args...) -#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) -static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, - const void *p, u32 len) -{} -#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */ - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS -int iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name); -void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv); -#else -static inline int -iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name) -{ - return 0; -} -static inline void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv) -{ -} -#endif /* CONFIG_IWLWIFI_LEGACY_DEBUGFS */ - -/* - * To use the debug system: - * - * If you are defining a new debug classification, simply add it to the #define - * list here in the form of - * - * #define IWL_DL_xxxx VALUE - * - * where xxxx should be the name of the classification (for example, WEP). - * - * You then need to either add a IWL_xxxx_DEBUG() macro definition for your - * classification, or use IWL_DEBUG(IWL_DL_xxxx, ...) whenever you want - * to send output to that classification. - * - * The active debug levels can be accessed via files - * - * /sys/module/iwl4965/parameters/debug{50} - * /sys/module/iwl3945/parameters/debug - * /sys/class/net/wlan0/device/debug_level - * - * when CONFIG_IWLWIFI_LEGACY_DEBUG=y. - */ - -/* 0x0000000F - 0x00000001 */ -#define IWL_DL_INFO (1 << 0) -#define IWL_DL_MAC80211 (1 << 1) -#define IWL_DL_HCMD (1 << 2) -#define IWL_DL_STATE (1 << 3) -/* 0x000000F0 - 0x00000010 */ -#define IWL_DL_MACDUMP (1 << 4) -#define IWL_DL_HCMD_DUMP (1 << 5) -#define IWL_DL_EEPROM (1 << 6) -#define IWL_DL_RADIO (1 << 7) -/* 0x00000F00 - 0x00000100 */ -#define IWL_DL_POWER (1 << 8) -#define IWL_DL_TEMP (1 << 9) -#define IWL_DL_NOTIF (1 << 10) -#define IWL_DL_SCAN (1 << 11) -/* 0x0000F000 - 0x00001000 */ -#define IWL_DL_ASSOC (1 << 12) -#define IWL_DL_DROP (1 << 13) -#define IWL_DL_TXPOWER (1 << 14) -#define IWL_DL_AP (1 << 15) -/* 0x000F0000 - 0x00010000 */ -#define IWL_DL_FW (1 << 16) -#define IWL_DL_RF_KILL (1 << 17) -#define IWL_DL_FW_ERRORS (1 << 18) -#define IWL_DL_LED (1 << 19) -/* 0x00F00000 - 0x00100000 */ -#define IWL_DL_RATE (1 << 20) -#define IWL_DL_CALIB (1 << 21) -#define IWL_DL_WEP (1 << 22) -#define IWL_DL_TX (1 << 23) -/* 0x0F000000 - 0x01000000 */ -#define IWL_DL_RX (1 << 24) -#define IWL_DL_ISR (1 << 25) -#define IWL_DL_HT (1 << 26) -#define IWL_DL_IO (1 << 27) -/* 0xF0000000 - 0x10000000 */ -#define IWL_DL_11H (1 << 28) -#define IWL_DL_STATS (1 << 29) -#define IWL_DL_TX_REPLY (1 << 30) -#define IWL_DL_QOS (1 << 31) - -#define IWL_DEBUG_INFO(p, f, a...) IWL_DEBUG(p, IWL_DL_INFO, f, ## a) -#define IWL_DEBUG_MAC80211(p, f, a...) IWL_DEBUG(p, IWL_DL_MAC80211, f, ## a) -#define IWL_DEBUG_MACDUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_MACDUMP, f, ## a) -#define IWL_DEBUG_TEMP(p, f, a...) IWL_DEBUG(p, IWL_DL_TEMP, f, ## a) -#define IWL_DEBUG_SCAN(p, f, a...) IWL_DEBUG(p, IWL_DL_SCAN, f, ## a) -#define IWL_DEBUG_RX(p, f, a...) IWL_DEBUG(p, IWL_DL_RX, f, ## a) -#define IWL_DEBUG_TX(p, f, a...) IWL_DEBUG(p, IWL_DL_TX, f, ## a) -#define IWL_DEBUG_ISR(p, f, a...) IWL_DEBUG(p, IWL_DL_ISR, f, ## a) -#define IWL_DEBUG_LED(p, f, a...) IWL_DEBUG(p, IWL_DL_LED, f, ## a) -#define IWL_DEBUG_WEP(p, f, a...) IWL_DEBUG(p, IWL_DL_WEP, f, ## a) -#define IWL_DEBUG_HC(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD, f, ## a) -#define IWL_DEBUG_HC_DUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD_DUMP, f, ## a) -#define IWL_DEBUG_EEPROM(p, f, a...) IWL_DEBUG(p, IWL_DL_EEPROM, f, ## a) -#define IWL_DEBUG_CALIB(p, f, a...) IWL_DEBUG(p, IWL_DL_CALIB, f, ## a) -#define IWL_DEBUG_FW(p, f, a...) IWL_DEBUG(p, IWL_DL_FW, f, ## a) -#define IWL_DEBUG_RF_KILL(p, f, a...) IWL_DEBUG(p, IWL_DL_RF_KILL, f, ## a) -#define IWL_DEBUG_DROP(p, f, a...) IWL_DEBUG(p, IWL_DL_DROP, f, ## a) -#define IWL_DEBUG_DROP_LIMIT(p, f, a...) \ - IWL_DEBUG_LIMIT(p, IWL_DL_DROP, f, ## a) -#define IWL_DEBUG_AP(p, f, a...) IWL_DEBUG(p, IWL_DL_AP, f, ## a) -#define IWL_DEBUG_TXPOWER(p, f, a...) IWL_DEBUG(p, IWL_DL_TXPOWER, f, ## a) -#define IWL_DEBUG_IO(p, f, a...) IWL_DEBUG(p, IWL_DL_IO, f, ## a) -#define IWL_DEBUG_RATE(p, f, a...) IWL_DEBUG(p, IWL_DL_RATE, f, ## a) -#define IWL_DEBUG_RATE_LIMIT(p, f, a...) \ - IWL_DEBUG_LIMIT(p, IWL_DL_RATE, f, ## a) -#define IWL_DEBUG_NOTIF(p, f, a...) IWL_DEBUG(p, IWL_DL_NOTIF, f, ## a) -#define IWL_DEBUG_ASSOC(p, f, a...) \ - IWL_DEBUG(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a) -#define IWL_DEBUG_ASSOC_LIMIT(p, f, a...) \ - IWL_DEBUG_LIMIT(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a) -#define IWL_DEBUG_HT(p, f, a...) IWL_DEBUG(p, IWL_DL_HT, f, ## a) -#define IWL_DEBUG_STATS(p, f, a...) IWL_DEBUG(p, IWL_DL_STATS, f, ## a) -#define IWL_DEBUG_STATS_LIMIT(p, f, a...) \ - IWL_DEBUG_LIMIT(p, IWL_DL_STATS, f, ## a) -#define IWL_DEBUG_TX_REPLY(p, f, a...) IWL_DEBUG(p, IWL_DL_TX_REPLY, f, ## a) -#define IWL_DEBUG_TX_REPLY_LIMIT(p, f, a...) \ - IWL_DEBUG_LIMIT(p, IWL_DL_TX_REPLY, f, ## a) -#define IWL_DEBUG_QOS(p, f, a...) IWL_DEBUG(p, IWL_DL_QOS, f, ## a) -#define IWL_DEBUG_RADIO(p, f, a...) IWL_DEBUG(p, IWL_DL_RADIO, f, ## a) -#define IWL_DEBUG_POWER(p, f, a...) IWL_DEBUG(p, IWL_DL_POWER, f, ## a) -#define IWL_DEBUG_11H(p, f, a...) IWL_DEBUG(p, IWL_DL_11H, f, ## a) - -#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-debugfs.c deleted file mode 100644 index 1407dca70def..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-debugfs.c +++ /dev/null @@ -1,1314 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ -#include <linux/ieee80211.h> -#include <linux/export.h> -#include <net/mac80211.h> - - -#include "iwl-dev.h" -#include "iwl-debug.h" -#include "iwl-core.h" -#include "iwl-io.h" - -/* create and remove of files */ -#define DEBUGFS_ADD_FILE(name, parent, mode) do { \ - if (!debugfs_create_file(#name, mode, parent, priv, \ - &iwl_legacy_dbgfs_##name##_ops)) \ - goto err; \ -} while (0) - -#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \ - struct dentry *__tmp; \ - __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \ - parent, ptr); \ - if (IS_ERR(__tmp) || !__tmp) \ - goto err; \ -} while (0) - -#define DEBUGFS_ADD_X32(name, parent, ptr) do { \ - struct dentry *__tmp; \ - __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \ - parent, ptr); \ - if (IS_ERR(__tmp) || !__tmp) \ - goto err; \ -} while (0) - -/* file operation */ -#define DEBUGFS_READ_FUNC(name) \ -static ssize_t iwl_legacy_dbgfs_##name##_read(struct file *file, \ - char __user *user_buf, \ - size_t count, loff_t *ppos); - -#define DEBUGFS_WRITE_FUNC(name) \ -static ssize_t iwl_legacy_dbgfs_##name##_write(struct file *file, \ - const char __user *user_buf, \ - size_t count, loff_t *ppos); - - -static int -iwl_legacy_dbgfs_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - -#define DEBUGFS_READ_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name); \ -static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \ - .read = iwl_legacy_dbgfs_##name##_read, \ - .open = iwl_legacy_dbgfs_open_file_generic, \ - .llseek = generic_file_llseek, \ -}; - -#define DEBUGFS_WRITE_FILE_OPS(name) \ - DEBUGFS_WRITE_FUNC(name); \ -static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \ - .write = iwl_legacy_dbgfs_##name##_write, \ - .open = iwl_legacy_dbgfs_open_file_generic, \ - .llseek = generic_file_llseek, \ -}; - -#define DEBUGFS_READ_WRITE_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name); \ - DEBUGFS_WRITE_FUNC(name); \ -static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \ - .write = iwl_legacy_dbgfs_##name##_write, \ - .read = iwl_legacy_dbgfs_##name##_read, \ - .open = iwl_legacy_dbgfs_open_file_generic, \ - .llseek = generic_file_llseek, \ -}; - -static ssize_t iwl_legacy_dbgfs_tx_statistics_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - char *buf; - int pos = 0; - - int cnt; - ssize_t ret; - const size_t bufsz = 100 + - sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX); - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) - return -ENOMEM; - pos += scnprintf(buf + pos, bufsz - pos, "Management:\n"); - for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, - "\t%25s\t\t: %u\n", - iwl_legacy_get_mgmt_string(cnt), - priv->tx_stats.mgmt[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "Control\n"); - for (cnt = 0; cnt < CONTROL_MAX; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, - "\t%25s\t\t: %u\n", - iwl_legacy_get_ctrl_string(cnt), - priv->tx_stats.ctrl[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "Data:\n"); - pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n", - priv->tx_stats.data_cnt); - pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n", - priv->tx_stats.data_bytes); - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t -iwl_legacy_dbgfs_clear_traffic_statistics_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - u32 clear_flag; - char buf[8]; - int buf_size; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%x", &clear_flag) != 1) - return -EFAULT; - iwl_legacy_clear_traffic_stats(priv); - - return count; -} - -static ssize_t iwl_legacy_dbgfs_rx_statistics_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - char *buf; - int pos = 0; - int cnt; - ssize_t ret; - const size_t bufsz = 100 + - sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX); - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - pos += scnprintf(buf + pos, bufsz - pos, "Management:\n"); - for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, - "\t%25s\t\t: %u\n", - iwl_legacy_get_mgmt_string(cnt), - priv->rx_stats.mgmt[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "Control:\n"); - for (cnt = 0; cnt < CONTROL_MAX; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, - "\t%25s\t\t: %u\n", - iwl_legacy_get_ctrl_string(cnt), - priv->rx_stats.ctrl[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "Data:\n"); - pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n", - priv->rx_stats.data_cnt); - pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n", - priv->rx_stats.data_bytes); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -#define BYTE1_MASK 0x000000ff; -#define BYTE2_MASK 0x0000ffff; -#define BYTE3_MASK 0x00ffffff; -static ssize_t iwl_legacy_dbgfs_sram_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - u32 val; - char *buf; - ssize_t ret; - int i; - int pos = 0; - struct iwl_priv *priv = file->private_data; - size_t bufsz; - - /* default is to dump the entire data segment */ - if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) { - priv->dbgfs_sram_offset = 0x800000; - if (priv->ucode_type == UCODE_INIT) - priv->dbgfs_sram_len = priv->ucode_init_data.len; - else - priv->dbgfs_sram_len = priv->ucode_data.len; - } - bufsz = 30 + priv->dbgfs_sram_len * sizeof(char) * 10; - buf = kmalloc(bufsz, GFP_KERNEL); - if (!buf) - return -ENOMEM; - pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", - priv->dbgfs_sram_len); - pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", - priv->dbgfs_sram_offset); - for (i = priv->dbgfs_sram_len; i > 0; i -= 4) { - val = iwl_legacy_read_targ_mem(priv, priv->dbgfs_sram_offset + \ - priv->dbgfs_sram_len - i); - if (i < 4) { - switch (i) { - case 1: - val &= BYTE1_MASK; - break; - case 2: - val &= BYTE2_MASK; - break; - case 3: - val &= BYTE3_MASK; - break; - } - } - if (!(i % 16)) - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val); - } - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_legacy_dbgfs_sram_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[64]; - int buf_size; - u32 offset, len; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - - if (sscanf(buf, "%x,%x", &offset, &len) == 2) { - priv->dbgfs_sram_offset = offset; - priv->dbgfs_sram_len = len; - } else { - priv->dbgfs_sram_offset = 0; - priv->dbgfs_sram_len = 0; - } - - return count; -} - -static ssize_t -iwl_legacy_dbgfs_stations_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - struct iwl_station_entry *station; - int max_sta = priv->hw_params.max_stations; - char *buf; - int i, j, pos = 0; - ssize_t ret; - /* Add 30 for initial string */ - const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations); - - buf = kmalloc(bufsz, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n", - priv->num_stations); - - for (i = 0; i < max_sta; i++) { - station = &priv->stations[i]; - if (!station->used) - continue; - pos += scnprintf(buf + pos, bufsz - pos, - "station %d - addr: %pM, flags: %#x\n", - i, station->sta.sta.addr, - station->sta.station_flags_msk); - pos += scnprintf(buf + pos, bufsz - pos, - "TID\tseq_num\ttxq_id\tframes\ttfds\t"); - pos += scnprintf(buf + pos, bufsz - pos, - "start_idx\tbitmap\t\t\trate_n_flags\n"); - - for (j = 0; j < MAX_TID_COUNT; j++) { - pos += scnprintf(buf + pos, bufsz - pos, - "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x", - j, station->tid[j].seq_number, - station->tid[j].agg.txq_id, - station->tid[j].agg.frame_count, - station->tid[j].tfds_in_queue, - station->tid[j].agg.start_idx, - station->tid[j].agg.bitmap, - station->tid[j].agg.rate_n_flags); - - if (station->tid[j].agg.wait_for_ba) - pos += scnprintf(buf + pos, bufsz - pos, - " - waitforba"); - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - } - - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - } - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_legacy_dbgfs_nvm_read(struct file *file, - char __user *user_buf, - size_t count, - loff_t *ppos) -{ - ssize_t ret; - struct iwl_priv *priv = file->private_data; - int pos = 0, ofs = 0, buf_size = 0; - const u8 *ptr; - char *buf; - u16 eeprom_ver; - size_t eeprom_len = priv->cfg->base_params->eeprom_size; - buf_size = 4 * eeprom_len + 256; - - if (eeprom_len % 16) { - IWL_ERR(priv, "NVM size is not multiple of 16.\n"); - return -ENODATA; - } - - ptr = priv->eeprom; - if (!ptr) { - IWL_ERR(priv, "Invalid EEPROM memory\n"); - return -ENOMEM; - } - - /* 4 characters for byte 0xYY */ - buf = kzalloc(buf_size, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - eeprom_ver = iwl_legacy_eeprom_query16(priv, EEPROM_VERSION); - pos += scnprintf(buf + pos, buf_size - pos, "EEPROM " - "version: 0x%x\n", eeprom_ver); - for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) { - pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs); - hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos, - buf_size - pos, 0); - pos += strlen(buf + pos); - if (buf_size - pos > 0) - buf[pos++] = '\n'; - } - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t -iwl_legacy_dbgfs_channels_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - struct ieee80211_channel *channels = NULL; - const struct ieee80211_supported_band *supp_band = NULL; - int pos = 0, i, bufsz = PAGE_SIZE; - char *buf; - ssize_t ret; - - if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status)) - return -EAGAIN; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ); - if (supp_band) { - channels = supp_band->channels; - - pos += scnprintf(buf + pos, bufsz - pos, - "Displaying %d channels in 2.4GHz band 802.11bg):\n", - supp_band->n_channels); - - for (i = 0; i < supp_band->n_channels; i++) - pos += scnprintf(buf + pos, bufsz - pos, - "%d: %ddBm: BSS%s%s, %s.\n", - channels[i].hw_value, - channels[i].max_power, - channels[i].flags & IEEE80211_CHAN_RADAR ? - " (IEEE 802.11h required)" : "", - ((channels[i].flags & IEEE80211_CHAN_NO_IBSS) - || (channels[i].flags & - IEEE80211_CHAN_RADAR)) ? "" : - ", IBSS", - channels[i].flags & - IEEE80211_CHAN_PASSIVE_SCAN ? - "passive only" : "active/passive"); - } - supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ); - if (supp_band) { - channels = supp_band->channels; - - pos += scnprintf(buf + pos, bufsz - pos, - "Displaying %d channels in 5.2GHz band (802.11a)\n", - supp_band->n_channels); - - for (i = 0; i < supp_band->n_channels; i++) - pos += scnprintf(buf + pos, bufsz - pos, - "%d: %ddBm: BSS%s%s, %s.\n", - channels[i].hw_value, - channels[i].max_power, - channels[i].flags & IEEE80211_CHAN_RADAR ? - " (IEEE 802.11h required)" : "", - ((channels[i].flags & IEEE80211_CHAN_NO_IBSS) - || (channels[i].flags & - IEEE80211_CHAN_RADAR)) ? "" : - ", IBSS", - channels[i].flags & - IEEE80211_CHAN_PASSIVE_SCAN ? - "passive only" : "active/passive"); - } - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_legacy_dbgfs_status_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - char buf[512]; - int pos = 0; - const size_t bufsz = sizeof(buf); - - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n", - test_bit(STATUS_HCMD_ACTIVE, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n", - test_bit(STATUS_INT_ENABLED, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n", - test_bit(STATUS_RF_KILL_HW, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n", - test_bit(STATUS_CT_KILL, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n", - test_bit(STATUS_INIT, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n", - test_bit(STATUS_ALIVE, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n", - test_bit(STATUS_READY, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n", - test_bit(STATUS_TEMPERATURE, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n", - test_bit(STATUS_GEO_CONFIGURED, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n", - test_bit(STATUS_EXIT_PENDING, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n", - test_bit(STATUS_STATISTICS, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n", - test_bit(STATUS_SCANNING, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n", - test_bit(STATUS_SCAN_ABORTING, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n", - test_bit(STATUS_SCAN_HW, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n", - test_bit(STATUS_POWER_PMI, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n", - test_bit(STATUS_FW_ERROR, &priv->status)); - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); -} - -static ssize_t iwl_legacy_dbgfs_interrupt_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - int pos = 0; - int cnt = 0; - char *buf; - int bufsz = 24 * 64; /* 24 items * 64 char per item */ - ssize_t ret; - - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - pos += scnprintf(buf + pos, bufsz - pos, - "Interrupt Statistics Report:\n"); - - pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n", - priv->isr_stats.hw); - pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n", - priv->isr_stats.sw); - if (priv->isr_stats.sw || priv->isr_stats.hw) { - pos += scnprintf(buf + pos, bufsz - pos, - "\tLast Restarting Code: 0x%X\n", - priv->isr_stats.err_code); - } -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n", - priv->isr_stats.sch); - pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n", - priv->isr_stats.alive); -#endif - pos += scnprintf(buf + pos, bufsz - pos, - "HW RF KILL switch toggled:\t %u\n", - priv->isr_stats.rfkill); - - pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n", - priv->isr_stats.ctkill); - - pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n", - priv->isr_stats.wakeup); - - pos += scnprintf(buf + pos, bufsz - pos, - "Rx command responses:\t\t %u\n", - priv->isr_stats.rx); - for (cnt = 0; cnt < REPLY_MAX; cnt++) { - if (priv->isr_stats.rx_handlers[cnt] > 0) - pos += scnprintf(buf + pos, bufsz - pos, - "\tRx handler[%36s]:\t\t %u\n", - iwl_legacy_get_cmd_string(cnt), - priv->isr_stats.rx_handlers[cnt]); - } - - pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n", - priv->isr_stats.tx); - - pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n", - priv->isr_stats.unhandled); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_legacy_dbgfs_interrupt_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[8]; - int buf_size; - u32 reset_flag; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%x", &reset_flag) != 1) - return -EFAULT; - if (reset_flag == 0) - iwl_legacy_clear_isr_stats(priv); - - return count; -} - -static ssize_t -iwl_legacy_dbgfs_qos_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - struct iwl_rxon_context *ctx; - int pos = 0, i; - char buf[256 * NUM_IWL_RXON_CTX]; - const size_t bufsz = sizeof(buf); - - for_each_context(priv, ctx) { - pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", - ctx->ctxid); - for (i = 0; i < AC_NUM; i++) { - pos += scnprintf(buf + pos, bufsz - pos, - "\tcw_min\tcw_max\taifsn\ttxop\n"); - pos += scnprintf(buf + pos, bufsz - pos, - "AC[%d]\t%u\t%u\t%u\t%u\n", i, - ctx->qos_data.def_qos_parm.ac[i].cw_min, - ctx->qos_data.def_qos_parm.ac[i].cw_max, - ctx->qos_data.def_qos_parm.ac[i].aifsn, - ctx->qos_data.def_qos_parm.ac[i].edca_txop); - } - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - } - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); -} - -static ssize_t iwl_legacy_dbgfs_disable_ht40_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[8]; - int buf_size; - int ht40; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%d", &ht40) != 1) - return -EFAULT; - if (!iwl_legacy_is_any_associated(priv)) - priv->disable_ht40 = ht40 ? true : false; - else { - IWL_ERR(priv, "Sta associated with AP - " - "Change to 40MHz channel support is not allowed\n"); - return -EINVAL; - } - - return count; -} - -static ssize_t iwl_legacy_dbgfs_disable_ht40_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[100]; - int pos = 0; - const size_t bufsz = sizeof(buf); - - pos += scnprintf(buf + pos, bufsz - pos, - "11n 40MHz Mode: %s\n", - priv->disable_ht40 ? "Disabled" : "Enabled"); - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); -} - -DEBUGFS_READ_WRITE_FILE_OPS(sram); -DEBUGFS_READ_FILE_OPS(nvm); -DEBUGFS_READ_FILE_OPS(stations); -DEBUGFS_READ_FILE_OPS(channels); -DEBUGFS_READ_FILE_OPS(status); -DEBUGFS_READ_WRITE_FILE_OPS(interrupt); -DEBUGFS_READ_FILE_OPS(qos); -DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40); - -static ssize_t iwl_legacy_dbgfs_traffic_log_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - int pos = 0, ofs = 0; - int cnt = 0, entry; - struct iwl_tx_queue *txq; - struct iwl_queue *q; - struct iwl_rx_queue *rxq = &priv->rxq; - char *buf; - int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) + - (priv->cfg->base_params->num_of_queues * 32 * 8) + 400; - const u8 *ptr; - ssize_t ret; - - if (!priv->txq) { - IWL_ERR(priv, "txq not ready\n"); - return -EAGAIN; - } - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate buffer\n"); - return -ENOMEM; - } - pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n"); - for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) { - txq = &priv->txq[cnt]; - q = &txq->q; - pos += scnprintf(buf + pos, bufsz - pos, - "q[%d]: read_ptr: %u, write_ptr: %u\n", - cnt, q->read_ptr, q->write_ptr); - } - if (priv->tx_traffic && (iwlegacy_debug_level & IWL_DL_TX)) { - ptr = priv->tx_traffic; - pos += scnprintf(buf + pos, bufsz - pos, - "Tx Traffic idx: %u\n", priv->tx_traffic_idx); - for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { - for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; - entry++, ofs += 16) { - pos += scnprintf(buf + pos, bufsz - pos, - "0x%.4x ", ofs); - hex_dump_to_buffer(ptr + ofs, 16, 16, 2, - buf + pos, bufsz - pos, 0); - pos += strlen(buf + pos); - if (bufsz - pos > 0) - buf[pos++] = '\n'; - } - } - } - - pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n"); - pos += scnprintf(buf + pos, bufsz - pos, - "read: %u, write: %u\n", - rxq->read, rxq->write); - - if (priv->rx_traffic && (iwlegacy_debug_level & IWL_DL_RX)) { - ptr = priv->rx_traffic; - pos += scnprintf(buf + pos, bufsz - pos, - "Rx Traffic idx: %u\n", priv->rx_traffic_idx); - for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { - for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; - entry++, ofs += 16) { - pos += scnprintf(buf + pos, bufsz - pos, - "0x%.4x ", ofs); - hex_dump_to_buffer(ptr + ofs, 16, 16, 2, - buf + pos, bufsz - pos, 0); - pos += strlen(buf + pos); - if (bufsz - pos > 0) - buf[pos++] = '\n'; - } - } - } - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_legacy_dbgfs_traffic_log_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[8]; - int buf_size; - int traffic_log; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%d", &traffic_log) != 1) - return -EFAULT; - if (traffic_log == 0) - iwl_legacy_reset_traffic_log(priv); - - return count; -} - -static ssize_t iwl_legacy_dbgfs_tx_queue_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - struct iwl_tx_queue *txq; - struct iwl_queue *q; - char *buf; - int pos = 0; - int cnt; - int ret; - const size_t bufsz = sizeof(char) * 64 * - priv->cfg->base_params->num_of_queues; - - if (!priv->txq) { - IWL_ERR(priv, "txq not ready\n"); - return -EAGAIN; - } - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) { - txq = &priv->txq[cnt]; - q = &txq->q; - pos += scnprintf(buf + pos, bufsz - pos, - "hwq %.2d: read=%u write=%u stop=%d" - " swq_id=%#.2x (ac %d/hwq %d)\n", - cnt, q->read_ptr, q->write_ptr, - !!test_bit(cnt, priv->queue_stopped), - txq->swq_id, txq->swq_id & 3, - (txq->swq_id >> 2) & 0x1f); - if (cnt >= 4) - continue; - /* for the ACs, display the stop count too */ - pos += scnprintf(buf + pos, bufsz - pos, - " stop-count: %d\n", - atomic_read(&priv->queue_stop_count[cnt])); - } - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_legacy_dbgfs_rx_queue_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - struct iwl_rx_queue *rxq = &priv->rxq; - char buf[256]; - int pos = 0; - const size_t bufsz = sizeof(buf); - - pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n", - rxq->read); - pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n", - rxq->write); - pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n", - rxq->free_count); - if (rxq->rb_stts) { - pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n", - le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF); - } else { - pos += scnprintf(buf + pos, bufsz - pos, - "closed_rb_num: Not Allocated\n"); - } - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); -} - -static ssize_t iwl_legacy_dbgfs_ucode_rx_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file, - user_buf, count, ppos); -} - -static ssize_t iwl_legacy_dbgfs_ucode_tx_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file, - user_buf, count, ppos); -} - -static ssize_t iwl_legacy_dbgfs_ucode_general_stats_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file, - user_buf, count, ppos); -} - -static ssize_t iwl_legacy_dbgfs_sensitivity_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - int pos = 0; - int cnt = 0; - char *buf; - int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100; - ssize_t ret; - struct iwl_sensitivity_data *data; - - data = &priv->sensitivity_data; - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n", - data->auto_corr_ofdm); - pos += scnprintf(buf + pos, bufsz - pos, - "auto_corr_ofdm_mrc:\t\t %u\n", - data->auto_corr_ofdm_mrc); - pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n", - data->auto_corr_ofdm_x1); - pos += scnprintf(buf + pos, bufsz - pos, - "auto_corr_ofdm_mrc_x1:\t\t %u\n", - data->auto_corr_ofdm_mrc_x1); - pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n", - data->auto_corr_cck); - pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n", - data->auto_corr_cck_mrc); - pos += scnprintf(buf + pos, bufsz - pos, - "last_bad_plcp_cnt_ofdm:\t\t %u\n", - data->last_bad_plcp_cnt_ofdm); - pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n", - data->last_fa_cnt_ofdm); - pos += scnprintf(buf + pos, bufsz - pos, - "last_bad_plcp_cnt_cck:\t\t %u\n", - data->last_bad_plcp_cnt_cck); - pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n", - data->last_fa_cnt_cck); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n", - data->nrg_curr_state); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n", - data->nrg_prev_state); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t"); - for (cnt = 0; cnt < 10; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, " %u", - data->nrg_value[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t"); - for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, " %u", - data->nrg_silence_rssi[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n", - data->nrg_silence_ref); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n", - data->nrg_energy_idx); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n", - data->nrg_silence_idx); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n", - data->nrg_th_cck); - pos += scnprintf(buf + pos, bufsz - pos, - "nrg_auto_corr_silence_diff:\t %u\n", - data->nrg_auto_corr_silence_diff); - pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n", - data->num_in_cck_no_fa); - pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n", - data->nrg_th_ofdm); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - - -static ssize_t iwl_legacy_dbgfs_chain_noise_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - int pos = 0; - int cnt = 0; - char *buf; - int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100; - ssize_t ret; - struct iwl_chain_noise_data *data; - - data = &priv->chain_noise_data; - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) { - IWL_ERR(priv, "Can not allocate Buffer\n"); - return -ENOMEM; - } - - pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n", - data->active_chains); - pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n", - data->chain_noise_a); - pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n", - data->chain_noise_b); - pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n", - data->chain_noise_c); - pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n", - data->chain_signal_a); - pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n", - data->chain_signal_b); - pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n", - data->chain_signal_c); - pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n", - data->beacon_count); - - pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t"); - for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, " %u", - data->disconn_array[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t"); - for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { - pos += scnprintf(buf + pos, bufsz - pos, " %u", - data->delta_gain_code[cnt]); - } - pos += scnprintf(buf + pos, bufsz - pos, "\n"); - pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n", - data->radio_write); - pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n", - data->state); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); - kfree(buf); - return ret; -} - -static ssize_t iwl_legacy_dbgfs_power_save_status_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[60]; - int pos = 0; - const size_t bufsz = sizeof(buf); - u32 pwrsave_status; - - pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) & - CSR_GP_REG_POWER_SAVE_STATUS_MSK; - - pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: "); - pos += scnprintf(buf + pos, bufsz - pos, "%s\n", - (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" : - (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" : - (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" : - "error"); - - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); -} - -static ssize_t iwl_legacy_dbgfs_clear_ucode_statistics_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[8]; - int buf_size; - int clear; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%d", &clear) != 1) - return -EFAULT; - - /* make request to uCode to retrieve statistics information */ - mutex_lock(&priv->mutex); - iwl_legacy_send_statistics_request(priv, CMD_SYNC, true); - mutex_unlock(&priv->mutex); - - return count; -} - -static ssize_t iwl_legacy_dbgfs_rxon_flags_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - int len = 0; - char buf[20]; - - len = sprintf(buf, "0x%04X\n", - le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags)); - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -} - -static ssize_t iwl_legacy_dbgfs_rxon_filter_flags_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - int len = 0; - char buf[20]; - - len = sprintf(buf, "0x%04X\n", - le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags)); - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -} - -static ssize_t iwl_legacy_dbgfs_fh_reg_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char *buf; - int pos = 0; - ssize_t ret = -EFAULT; - - if (priv->cfg->ops->lib->dump_fh) { - ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true); - if (buf) { - ret = simple_read_from_buffer(user_buf, - count, ppos, buf, pos); - kfree(buf); - } - } - - return ret; -} - -static ssize_t iwl_legacy_dbgfs_missed_beacon_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - int pos = 0; - char buf[12]; - const size_t bufsz = sizeof(buf); - - pos += scnprintf(buf + pos, bufsz - pos, "%d\n", - priv->missed_beacon_threshold); - - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); -} - -static ssize_t iwl_legacy_dbgfs_missed_beacon_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct iwl_priv *priv = file->private_data; - char buf[8]; - int buf_size; - int missed; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%d", &missed) != 1) - return -EINVAL; - - if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN || - missed > IWL_MISSED_BEACON_THRESHOLD_MAX) - priv->missed_beacon_threshold = - IWL_MISSED_BEACON_THRESHOLD_DEF; - else - priv->missed_beacon_threshold = missed; - - return count; -} - -static ssize_t iwl_legacy_dbgfs_force_reset_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - int pos = 0; - char buf[300]; - const size_t bufsz = sizeof(buf); - struct iwl_force_reset *force_reset; - - force_reset = &priv->force_reset; - - pos += scnprintf(buf + pos, bufsz - pos, - "\tnumber of reset request: %d\n", - force_reset->reset_request_count); - pos += scnprintf(buf + pos, bufsz - pos, - "\tnumber of reset request success: %d\n", - force_reset->reset_success_count); - pos += scnprintf(buf + pos, bufsz - pos, - "\tnumber of reset request reject: %d\n", - force_reset->reset_reject_count); - pos += scnprintf(buf + pos, bufsz - pos, - "\treset duration: %lu\n", - force_reset->reset_duration); - - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); -} - -static ssize_t iwl_legacy_dbgfs_force_reset_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) { - - int ret; - struct iwl_priv *priv = file->private_data; - - ret = iwl_legacy_force_reset(priv, true); - - return ret ? ret : count; -} - -static ssize_t iwl_legacy_dbgfs_wd_timeout_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) { - - struct iwl_priv *priv = file->private_data; - char buf[8]; - int buf_size; - int timeout; - - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%d", &timeout) != 1) - return -EINVAL; - if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT) - timeout = IWL_DEF_WD_TIMEOUT; - - priv->cfg->base_params->wd_timeout = timeout; - iwl_legacy_setup_watchdog(priv); - return count; -} - -DEBUGFS_READ_FILE_OPS(rx_statistics); -DEBUGFS_READ_FILE_OPS(tx_statistics); -DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); -DEBUGFS_READ_FILE_OPS(rx_queue); -DEBUGFS_READ_FILE_OPS(tx_queue); -DEBUGFS_READ_FILE_OPS(ucode_rx_stats); -DEBUGFS_READ_FILE_OPS(ucode_tx_stats); -DEBUGFS_READ_FILE_OPS(ucode_general_stats); -DEBUGFS_READ_FILE_OPS(sensitivity); -DEBUGFS_READ_FILE_OPS(chain_noise); -DEBUGFS_READ_FILE_OPS(power_save_status); -DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics); -DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics); -DEBUGFS_READ_FILE_OPS(fh_reg); -DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon); -DEBUGFS_READ_WRITE_FILE_OPS(force_reset); -DEBUGFS_READ_FILE_OPS(rxon_flags); -DEBUGFS_READ_FILE_OPS(rxon_filter_flags); -DEBUGFS_WRITE_FILE_OPS(wd_timeout); - -/* - * Create the debugfs files and directories - * - */ -int iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name) -{ - struct dentry *phyd = priv->hw->wiphy->debugfsdir; - struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug; - - dir_drv = debugfs_create_dir(name, phyd); - if (!dir_drv) - return -ENOMEM; - - priv->debugfs_dir = dir_drv; - - dir_data = debugfs_create_dir("data", dir_drv); - if (!dir_data) - goto err; - dir_rf = debugfs_create_dir("rf", dir_drv); - if (!dir_rf) - goto err; - dir_debug = debugfs_create_dir("debug", dir_drv); - if (!dir_debug) - goto err; - - DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR); - DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR); - DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR); - DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR); - DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR); - DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR); - DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR); - DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR); - DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR); - DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR); - DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR); - DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR); - DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR); - DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR); - - if (priv->cfg->base_params->sensitivity_calib_by_driver) - DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR); - if (priv->cfg->base_params->chain_noise_calib_by_driver) - DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR); - DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR); - DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR); - DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR); - if (priv->cfg->base_params->sensitivity_calib_by_driver) - DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, - &priv->disable_sens_cal); - if (priv->cfg->base_params->chain_noise_calib_by_driver) - DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf, - &priv->disable_chain_noise_cal); - DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf, - &priv->disable_tx_power_cal); - return 0; - -err: - IWL_ERR(priv, "Can't create the debugfs directory\n"); - iwl_legacy_dbgfs_unregister(priv); - return -ENOMEM; -} -EXPORT_SYMBOL(iwl_legacy_dbgfs_register); - -/** - * Remove the debugfs files and directories - * - */ -void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv) -{ - if (!priv->debugfs_dir) - return; - - debugfs_remove_recursive(priv->debugfs_dir); - priv->debugfs_dir = NULL; -} -EXPORT_SYMBOL(iwl_legacy_dbgfs_unregister); diff --git a/drivers/net/wireless/iwlegacy/iwl-dev.h b/drivers/net/wireless/iwlegacy/iwl-dev.h deleted file mode 100644 index 9c786edf56fd..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-dev.h +++ /dev/null @@ -1,1364 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ -/* - * Please use this file (iwl-dev.h) for driver implementation definitions. - * Please use iwl-commands.h for uCode API definitions. - * Please use iwl-4965-hw.h for hardware-related definitions. - */ - -#ifndef __iwl_legacy_dev_h__ -#define __iwl_legacy_dev_h__ - -#include <linux/interrupt.h> -#include <linux/pci.h> /* for struct pci_device_id */ -#include <linux/kernel.h> -#include <linux/leds.h> -#include <linux/wait.h> -#include <net/ieee80211_radiotap.h> - -#include "iwl-eeprom.h" -#include "iwl-csr.h" -#include "iwl-prph.h" -#include "iwl-fh.h" -#include "iwl-debug.h" -#include "iwl-4965-hw.h" -#include "iwl-3945-hw.h" -#include "iwl-led.h" -#include "iwl-power.h" -#include "iwl-legacy-rs.h" - -struct iwl_tx_queue; - -/* CT-KILL constants */ -#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */ - -/* Default noise level to report when noise measurement is not available. - * This may be because we're: - * 1) Not associated (4965, no beacon statistics being sent to driver) - * 2) Scanning (noise measurement does not apply to associated channel) - * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) - * Use default noise value of -127 ... this is below the range of measurable - * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. - * Also, -127 works better than 0 when averaging frames with/without - * noise info (e.g. averaging might be done in app); measured dBm values are - * always negative ... using a negative value as the default keeps all - * averages within an s8's (used in some apps) range of negative values. */ -#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127) - -/* - * RTS threshold here is total size [2347] minus 4 FCS bytes - * Per spec: - * a value of 0 means RTS on all data/management packets - * a value > max MSDU size means no RTS - * else RTS for data/management frames where MPDU is larger - * than RTS value. - */ -#define DEFAULT_RTS_THRESHOLD 2347U -#define MIN_RTS_THRESHOLD 0U -#define MAX_RTS_THRESHOLD 2347U -#define MAX_MSDU_SIZE 2304U -#define MAX_MPDU_SIZE 2346U -#define DEFAULT_BEACON_INTERVAL 100U -#define DEFAULT_SHORT_RETRY_LIMIT 7U -#define DEFAULT_LONG_RETRY_LIMIT 4U - -struct iwl_rx_mem_buffer { - dma_addr_t page_dma; - struct page *page; - struct list_head list; -}; - -#define rxb_addr(r) page_address(r->page) - -/* defined below */ -struct iwl_device_cmd; - -struct iwl_cmd_meta { - /* only for SYNC commands, iff the reply skb is wanted */ - struct iwl_host_cmd *source; - /* - * only for ASYNC commands - * (which is somewhat stupid -- look at iwl-sta.c for instance - * which duplicates a bunch of code because the callback isn't - * invoked for SYNC commands, if it were and its result passed - * through it would be simpler...) - */ - void (*callback)(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct iwl_rx_packet *pkt); - - /* The CMD_SIZE_HUGE flag bit indicates that the command - * structure is stored at the end of the shared queue memory. */ - u32 flags; - - DEFINE_DMA_UNMAP_ADDR(mapping); - DEFINE_DMA_UNMAP_LEN(len); -}; - -/* - * Generic queue structure - * - * Contains common data for Rx and Tx queues - */ -struct iwl_queue { - int n_bd; /* number of BDs in this queue */ - int write_ptr; /* 1-st empty entry (index) host_w*/ - int read_ptr; /* last used entry (index) host_r*/ - /* use for monitoring and recovering the stuck queue */ - dma_addr_t dma_addr; /* physical addr for BD's */ - int n_window; /* safe queue window */ - u32 id; - int low_mark; /* low watermark, resume queue if free - * space more than this */ - int high_mark; /* high watermark, stop queue if free - * space less than this */ -}; - -/* One for each TFD */ -struct iwl_tx_info { - struct sk_buff *skb; - struct iwl_rxon_context *ctx; -}; - -/** - * struct iwl_tx_queue - Tx Queue for DMA - * @q: generic Rx/Tx queue descriptor - * @bd: base of circular buffer of TFDs - * @cmd: array of command/TX buffer pointers - * @meta: array of meta data for each command/tx buffer - * @dma_addr_cmd: physical address of cmd/tx buffer array - * @txb: array of per-TFD driver data - * @time_stamp: time (in jiffies) of last read_ptr change - * @need_update: indicates need to update read/write index - * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled - * - * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame - * descriptors) and required locking structures. - */ -#define TFD_TX_CMD_SLOTS 256 -#define TFD_CMD_SLOTS 32 - -struct iwl_tx_queue { - struct iwl_queue q; - void *tfds; - struct iwl_device_cmd **cmd; - struct iwl_cmd_meta *meta; - struct iwl_tx_info *txb; - unsigned long time_stamp; - u8 need_update; - u8 sched_retry; - u8 active; - u8 swq_id; -}; - -#define IWL_NUM_SCAN_RATES (2) - -struct iwl4965_channel_tgd_info { - u8 type; - s8 max_power; -}; - -struct iwl4965_channel_tgh_info { - s64 last_radar_time; -}; - -#define IWL4965_MAX_RATE (33) - -struct iwl3945_clip_group { - /* maximum power level to prevent clipping for each rate, derived by - * us from this band's saturation power in EEPROM */ - const s8 clip_powers[IWL_MAX_RATES]; -}; - -/* current Tx power values to use, one for each rate for each channel. - * requested power is limited by: - * -- regulatory EEPROM limits for this channel - * -- hardware capabilities (clip-powers) - * -- spectrum management - * -- user preference (e.g. iwconfig) - * when requested power is set, base power index must also be set. */ -struct iwl3945_channel_power_info { - struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */ - s8 power_table_index; /* actual (compenst'd) index into gain table */ - s8 base_power_index; /* gain index for power at factory temp. */ - s8 requested_power; /* power (dBm) requested for this chnl/rate */ -}; - -/* current scan Tx power values to use, one for each scan rate for each - * channel. */ -struct iwl3945_scan_power_info { - struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */ - s8 power_table_index; /* actual (compenst'd) index into gain table */ - s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */ -}; - -/* - * One for each channel, holds all channel setup data - * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant - * with one another! - */ -struct iwl_channel_info { - struct iwl4965_channel_tgd_info tgd; - struct iwl4965_channel_tgh_info tgh; - struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */ - struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for - * HT40 channel */ - - u8 channel; /* channel number */ - u8 flags; /* flags copied from EEPROM */ - s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ - s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ - s8 min_power; /* always 0 */ - s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ - - u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */ - u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */ - enum ieee80211_band band; - - /* HT40 channel info */ - s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ - u8 ht40_flags; /* flags copied from EEPROM */ - u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */ - - /* Radio/DSP gain settings for each "normal" data Tx rate. - * These include, in addition to RF and DSP gain, a few fields for - * remembering/modifying gain settings (indexes). */ - struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE]; - - /* Radio/DSP gain settings for each scan rate, for directed scans. */ - struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES]; -}; - -#define IWL_TX_FIFO_BK 0 /* shared */ -#define IWL_TX_FIFO_BE 1 -#define IWL_TX_FIFO_VI 2 /* shared */ -#define IWL_TX_FIFO_VO 3 -#define IWL_TX_FIFO_UNUSED -1 - -/* Minimum number of queues. MAX_NUM is defined in hw specific files. - * Set the minimum to accommodate the 4 standard TX queues, 1 command - * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */ -#define IWL_MIN_NUM_QUEUES 10 - -#define IWL_DEFAULT_CMD_QUEUE_NUM 4 - -#define IEEE80211_DATA_LEN 2304 -#define IEEE80211_4ADDR_LEN 30 -#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) -#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) - -struct iwl_frame { - union { - struct ieee80211_hdr frame; - struct iwl_tx_beacon_cmd beacon; - u8 raw[IEEE80211_FRAME_LEN]; - u8 cmd[360]; - } u; - struct list_head list; -}; - -#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) -#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) -#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) - -enum { - CMD_SYNC = 0, - CMD_SIZE_NORMAL = 0, - CMD_NO_SKB = 0, - CMD_SIZE_HUGE = (1 << 0), - CMD_ASYNC = (1 << 1), - CMD_WANT_SKB = (1 << 2), - CMD_MAPPED = (1 << 3), -}; - -#define DEF_CMD_PAYLOAD_SIZE 320 - -/** - * struct iwl_device_cmd - * - * For allocation of the command and tx queues, this establishes the overall - * size of the largest command we send to uCode, except for a scan command - * (which is relatively huge; space is allocated separately). - */ -struct iwl_device_cmd { - struct iwl_cmd_header hdr; /* uCode API */ - union { - u32 flags; - u8 val8; - u16 val16; - u32 val32; - struct iwl_tx_cmd tx; - u8 payload[DEF_CMD_PAYLOAD_SIZE]; - } __packed cmd; -} __packed; - -#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) - - -struct iwl_host_cmd { - const void *data; - unsigned long reply_page; - void (*callback)(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct iwl_rx_packet *pkt); - u32 flags; - u16 len; - u8 id; -}; - -#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 -#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 -#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 - -/** - * struct iwl_rx_queue - Rx queue - * @bd: driver's pointer to buffer of receive buffer descriptors (rbd) - * @bd_dma: bus address of buffer of receive buffer descriptors (rbd) - * @read: Shared index to newest available Rx buffer - * @write: Shared index to oldest written Rx packet - * @free_count: Number of pre-allocated buffers in rx_free - * @rx_free: list of free SKBs for use - * @rx_used: List of Rx buffers with no SKB - * @need_update: flag to indicate we need to update read/write index - * @rb_stts: driver's pointer to receive buffer status - * @rb_stts_dma: bus address of receive buffer status - * - * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers - */ -struct iwl_rx_queue { - __le32 *bd; - dma_addr_t bd_dma; - struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; - struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; - u32 read; - u32 write; - u32 free_count; - u32 write_actual; - struct list_head rx_free; - struct list_head rx_used; - int need_update; - struct iwl_rb_status *rb_stts; - dma_addr_t rb_stts_dma; - spinlock_t lock; -}; - -#define IWL_SUPPORTED_RATES_IE_LEN 8 - -#define MAX_TID_COUNT 9 - -#define IWL_INVALID_RATE 0xFF -#define IWL_INVALID_VALUE -1 - -/** - * struct iwl_ht_agg -- aggregation status while waiting for block-ack - * @txq_id: Tx queue used for Tx attempt - * @frame_count: # frames attempted by Tx command - * @wait_for_ba: Expect block-ack before next Tx reply - * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window - * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window - * @bitmap1: High order, one bit for each frame pending ACK in Tx window - * @rate_n_flags: Rate at which Tx was attempted - * - * If REPLY_TX indicates that aggregation was attempted, driver must wait - * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info - * until block ack arrives. - */ -struct iwl_ht_agg { - u16 txq_id; - u16 frame_count; - u16 wait_for_ba; - u16 start_idx; - u64 bitmap; - u32 rate_n_flags; -#define IWL_AGG_OFF 0 -#define IWL_AGG_ON 1 -#define IWL_EMPTYING_HW_QUEUE_ADDBA 2 -#define IWL_EMPTYING_HW_QUEUE_DELBA 3 - u8 state; -}; - - -struct iwl_tid_data { - u16 seq_number; /* 4965 only */ - u16 tfds_in_queue; - struct iwl_ht_agg agg; -}; - -struct iwl_hw_key { - u32 cipher; - int keylen; - u8 keyidx; - u8 key[32]; -}; - -union iwl_ht_rate_supp { - u16 rates; - struct { - u8 siso_rate; - u8 mimo_rate; - }; -}; - -#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0) -#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1) -#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2) -#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3) -#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K -#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K -#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K - -/* - * Maximal MPDU density for TX aggregation - * 4 - 2us density - * 5 - 4us density - * 6 - 8us density - * 7 - 16us density - */ -#define CFG_HT_MPDU_DENSITY_2USEC (0x4) -#define CFG_HT_MPDU_DENSITY_4USEC (0x5) -#define CFG_HT_MPDU_DENSITY_8USEC (0x6) -#define CFG_HT_MPDU_DENSITY_16USEC (0x7) -#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC -#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC -#define CFG_HT_MPDU_DENSITY_MIN (0x1) - -struct iwl_ht_config { - bool single_chain_sufficient; - enum ieee80211_smps_mode smps; /* current smps mode */ -}; - -/* QoS structures */ -struct iwl_qos_info { - int qos_active; - struct iwl_qosparam_cmd def_qos_parm; -}; - -/* - * Structure should be accessed with sta_lock held. When station addition - * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only - * the commands (iwl_legacy_addsta_cmd and iwl_link_quality_cmd) without - * sta_lock held. - */ -struct iwl_station_entry { - struct iwl_legacy_addsta_cmd sta; - struct iwl_tid_data tid[MAX_TID_COUNT]; - u8 used, ctxid; - struct iwl_hw_key keyinfo; - struct iwl_link_quality_cmd *lq; -}; - -struct iwl_station_priv_common { - struct iwl_rxon_context *ctx; - u8 sta_id; -}; - -/* - * iwl_station_priv: Driver's private station information - * - * When mac80211 creates a station it reserves some space (hw->sta_data_size) - * in the structure for use by driver. This structure is places in that - * space. - * - * The common struct MUST be first because it is shared between - * 3945 and 4965! - */ -struct iwl_station_priv { - struct iwl_station_priv_common common; - struct iwl_lq_sta lq_sta; - atomic_t pending_frames; - bool client; - bool asleep; -}; - -/** - * struct iwl_vif_priv - driver's private per-interface information - * - * When mac80211 allocates a virtual interface, it can allocate - * space for us to put data into. - */ -struct iwl_vif_priv { - struct iwl_rxon_context *ctx; - u8 ibss_bssid_sta_id; -}; - -/* one for each uCode image (inst/data, boot/init/runtime) */ -struct fw_desc { - void *v_addr; /* access by driver */ - dma_addr_t p_addr; /* access by card's busmaster DMA */ - u32 len; /* bytes */ -}; - -/* uCode file layout */ -struct iwl_ucode_header { - __le32 ver; /* major/minor/API/serial */ - struct { - __le32 inst_size; /* bytes of runtime code */ - __le32 data_size; /* bytes of runtime data */ - __le32 init_size; /* bytes of init code */ - __le32 init_data_size; /* bytes of init data */ - __le32 boot_size; /* bytes of bootstrap code */ - u8 data[0]; /* in same order as sizes */ - } v1; -}; - -struct iwl4965_ibss_seq { - u8 mac[ETH_ALEN]; - u16 seq_num; - u16 frag_num; - unsigned long packet_time; - struct list_head list; -}; - -struct iwl_sensitivity_ranges { - u16 min_nrg_cck; - u16 max_nrg_cck; - - u16 nrg_th_cck; - u16 nrg_th_ofdm; - - u16 auto_corr_min_ofdm; - u16 auto_corr_min_ofdm_mrc; - u16 auto_corr_min_ofdm_x1; - u16 auto_corr_min_ofdm_mrc_x1; - - u16 auto_corr_max_ofdm; - u16 auto_corr_max_ofdm_mrc; - u16 auto_corr_max_ofdm_x1; - u16 auto_corr_max_ofdm_mrc_x1; - - u16 auto_corr_max_cck; - u16 auto_corr_max_cck_mrc; - u16 auto_corr_min_cck; - u16 auto_corr_min_cck_mrc; - - u16 barker_corr_th_min; - u16 barker_corr_th_min_mrc; - u16 nrg_th_cca; -}; - - -#define KELVIN_TO_CELSIUS(x) ((x)-273) -#define CELSIUS_TO_KELVIN(x) ((x)+273) - - -/** - * struct iwl_hw_params - * @max_txq_num: Max # Tx queues supported - * @dma_chnl_num: Number of Tx DMA/FIFO channels - * @scd_bc_tbls_size: size of scheduler byte count tables - * @tfd_size: TFD size - * @tx/rx_chains_num: Number of TX/RX chains - * @valid_tx/rx_ant: usable antennas - * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) - * @max_rxq_log: Log-base-2 of max_rxq_size - * @rx_page_order: Rx buffer page order - * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR - * @max_stations: - * @ht40_channel: is 40MHz width possible in band 2.4 - * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) - * @sw_crypto: 0 for hw, 1 for sw - * @max_xxx_size: for ucode uses - * @ct_kill_threshold: temperature threshold - * @beacon_time_tsf_bits: number of valid tsf bits for beacon time - * @struct iwl_sensitivity_ranges: range of sensitivity values - */ -struct iwl_hw_params { - u8 max_txq_num; - u8 dma_chnl_num; - u16 scd_bc_tbls_size; - u32 tfd_size; - u8 tx_chains_num; - u8 rx_chains_num; - u8 valid_tx_ant; - u8 valid_rx_ant; - u16 max_rxq_size; - u16 max_rxq_log; - u32 rx_page_order; - u32 rx_wrt_ptr_reg; - u8 max_stations; - u8 ht40_channel; - u8 max_beacon_itrvl; /* in 1024 ms */ - u32 max_inst_size; - u32 max_data_size; - u32 max_bsm_size; - u32 ct_kill_threshold; /* value in hw-dependent units */ - u16 beacon_time_tsf_bits; - const struct iwl_sensitivity_ranges *sens; -}; - - -/****************************************************************************** - * - * Functions implemented in core module which are forward declared here - * for use by iwl-[4-5].c - * - * NOTE: The implementation of these functions are not hardware specific - * which is why they are in the core module files. - * - * Naming convention -- - * iwl_ <-- Is part of iwlwifi - * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) - * iwl4965_bg_ <-- Called from work queue context - * iwl4965_mac_ <-- mac80211 callback - * - ****************************************************************************/ -extern void iwl4965_update_chain_flags(struct iwl_priv *priv); -extern const u8 iwlegacy_bcast_addr[ETH_ALEN]; -extern int iwl_legacy_queue_space(const struct iwl_queue *q); -static inline int iwl_legacy_queue_used(const struct iwl_queue *q, int i) -{ - return q->write_ptr >= q->read_ptr ? - (i >= q->read_ptr && i < q->write_ptr) : - !(i < q->read_ptr && i >= q->write_ptr); -} - - -static inline u8 iwl_legacy_get_cmd_index(struct iwl_queue *q, u32 index, - int is_huge) -{ - /* - * This is for init calibration result and scan command which - * required buffer > TFD_MAX_PAYLOAD_SIZE, - * the big buffer at end of command array - */ - if (is_huge) - return q->n_window; /* must be power of 2 */ - - /* Otherwise, use normal size buffers */ - return index & (q->n_window - 1); -} - - -struct iwl_dma_ptr { - dma_addr_t dma; - void *addr; - size_t size; -}; - -#define IWL_OPERATION_MODE_AUTO 0 -#define IWL_OPERATION_MODE_HT_ONLY 1 -#define IWL_OPERATION_MODE_MIXED 2 -#define IWL_OPERATION_MODE_20MHZ 3 - -#define IWL_TX_CRC_SIZE 4 -#define IWL_TX_DELIMITER_SIZE 4 - -#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 - -/* Sensitivity and chain noise calibration */ -#define INITIALIZATION_VALUE 0xFFFF -#define IWL4965_CAL_NUM_BEACONS 20 -#define IWL_CAL_NUM_BEACONS 16 -#define MAXIMUM_ALLOWED_PATHLOSS 15 - -#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 - -#define MAX_FA_OFDM 50 -#define MIN_FA_OFDM 5 -#define MAX_FA_CCK 50 -#define MIN_FA_CCK 5 - -#define AUTO_CORR_STEP_OFDM 1 - -#define AUTO_CORR_STEP_CCK 3 -#define AUTO_CORR_MAX_TH_CCK 160 - -#define NRG_DIFF 2 -#define NRG_STEP_CCK 2 -#define NRG_MARGIN 8 -#define MAX_NUMBER_CCK_NO_FA 100 - -#define AUTO_CORR_CCK_MIN_VAL_DEF (125) - -#define CHAIN_A 0 -#define CHAIN_B 1 -#define CHAIN_C 2 -#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 -#define ALL_BAND_FILTER 0xFF00 -#define IN_BAND_FILTER 0xFF -#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF - -#define NRG_NUM_PREV_STAT_L 20 -#define NUM_RX_CHAINS 3 - -enum iwl4965_false_alarm_state { - IWL_FA_TOO_MANY = 0, - IWL_FA_TOO_FEW = 1, - IWL_FA_GOOD_RANGE = 2, -}; - -enum iwl4965_chain_noise_state { - IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ - IWL_CHAIN_NOISE_ACCUMULATE, - IWL_CHAIN_NOISE_CALIBRATED, - IWL_CHAIN_NOISE_DONE, -}; - -enum iwl4965_calib_enabled_state { - IWL_CALIB_DISABLED = 0, /* must be 0 */ - IWL_CALIB_ENABLED = 1, -}; - -/* - * enum iwl_calib - * defines the order in which results of initial calibrations - * should be sent to the runtime uCode - */ -enum iwl_calib { - IWL_CALIB_MAX, -}; - -/* Opaque calibration results */ -struct iwl_calib_result { - void *buf; - size_t buf_len; -}; - -enum ucode_type { - UCODE_NONE = 0, - UCODE_INIT, - UCODE_RT -}; - -/* Sensitivity calib data */ -struct iwl_sensitivity_data { - u32 auto_corr_ofdm; - u32 auto_corr_ofdm_mrc; - u32 auto_corr_ofdm_x1; - u32 auto_corr_ofdm_mrc_x1; - u32 auto_corr_cck; - u32 auto_corr_cck_mrc; - - u32 last_bad_plcp_cnt_ofdm; - u32 last_fa_cnt_ofdm; - u32 last_bad_plcp_cnt_cck; - u32 last_fa_cnt_cck; - - u32 nrg_curr_state; - u32 nrg_prev_state; - u32 nrg_value[10]; - u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; - u32 nrg_silence_ref; - u32 nrg_energy_idx; - u32 nrg_silence_idx; - u32 nrg_th_cck; - s32 nrg_auto_corr_silence_diff; - u32 num_in_cck_no_fa; - u32 nrg_th_ofdm; - - u16 barker_corr_th_min; - u16 barker_corr_th_min_mrc; - u16 nrg_th_cca; -}; - -/* Chain noise (differential Rx gain) calib data */ -struct iwl_chain_noise_data { - u32 active_chains; - u32 chain_noise_a; - u32 chain_noise_b; - u32 chain_noise_c; - u32 chain_signal_a; - u32 chain_signal_b; - u32 chain_signal_c; - u16 beacon_count; - u8 disconn_array[NUM_RX_CHAINS]; - u8 delta_gain_code[NUM_RX_CHAINS]; - u8 radio_write; - u8 state; -}; - -#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ -#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ - -#define IWL_TRAFFIC_ENTRIES (256) -#define IWL_TRAFFIC_ENTRY_SIZE (64) - -enum { - MEASUREMENT_READY = (1 << 0), - MEASUREMENT_ACTIVE = (1 << 1), -}; - -/* interrupt statistics */ -struct isr_statistics { - u32 hw; - u32 sw; - u32 err_code; - u32 sch; - u32 alive; - u32 rfkill; - u32 ctkill; - u32 wakeup; - u32 rx; - u32 rx_handlers[REPLY_MAX]; - u32 tx; - u32 unhandled; -}; - -/* management statistics */ -enum iwl_mgmt_stats { - MANAGEMENT_ASSOC_REQ = 0, - MANAGEMENT_ASSOC_RESP, - MANAGEMENT_REASSOC_REQ, - MANAGEMENT_REASSOC_RESP, - MANAGEMENT_PROBE_REQ, - MANAGEMENT_PROBE_RESP, - MANAGEMENT_BEACON, - MANAGEMENT_ATIM, - MANAGEMENT_DISASSOC, - MANAGEMENT_AUTH, - MANAGEMENT_DEAUTH, - MANAGEMENT_ACTION, - MANAGEMENT_MAX, -}; -/* control statistics */ -enum iwl_ctrl_stats { - CONTROL_BACK_REQ = 0, - CONTROL_BACK, - CONTROL_PSPOLL, - CONTROL_RTS, - CONTROL_CTS, - CONTROL_ACK, - CONTROL_CFEND, - CONTROL_CFENDACK, - CONTROL_MAX, -}; - -struct traffic_stats { -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - u32 mgmt[MANAGEMENT_MAX]; - u32 ctrl[CONTROL_MAX]; - u32 data_cnt; - u64 data_bytes; -#endif -}; - -/* - * host interrupt timeout value - * used with setting interrupt coalescing timer - * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit - * - * default interrupt coalescing timer is 64 x 32 = 2048 usecs - * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs - */ -#define IWL_HOST_INT_TIMEOUT_MAX (0xFF) -#define IWL_HOST_INT_TIMEOUT_DEF (0x40) -#define IWL_HOST_INT_TIMEOUT_MIN (0x0) -#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF) -#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10) -#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0) - -#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5) - -/* TX queue watchdog timeouts in mSecs */ -#define IWL_DEF_WD_TIMEOUT (2000) -#define IWL_LONG_WD_TIMEOUT (10000) -#define IWL_MAX_WD_TIMEOUT (120000) - -struct iwl_force_reset { - int reset_request_count; - int reset_success_count; - int reset_reject_count; - unsigned long reset_duration; - unsigned long last_force_reset_jiffies; -}; - -/* extend beacon time format bit shifting */ -/* - * for _3945 devices - * bits 31:24 - extended - * bits 23:0 - interval - */ -#define IWL3945_EXT_BEACON_TIME_POS 24 -/* - * for _4965 devices - * bits 31:22 - extended - * bits 21:0 - interval - */ -#define IWL4965_EXT_BEACON_TIME_POS 22 - -enum iwl_rxon_context_id { - IWL_RXON_CTX_BSS, - - NUM_IWL_RXON_CTX -}; - -struct iwl_rxon_context { - struct ieee80211_vif *vif; - - const u8 *ac_to_fifo; - const u8 *ac_to_queue; - u8 mcast_queue; - - /* - * We could use the vif to indicate active, but we - * also need it to be active during disabling when - * we already removed the vif for type setting. - */ - bool always_active, is_active; - - bool ht_need_multiple_chains; - - enum iwl_rxon_context_id ctxid; - - u32 interface_modes, exclusive_interface_modes; - u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype; - - /* - * We declare this const so it can only be - * changed via explicit cast within the - * routines that actually update the physical - * hardware. - */ - const struct iwl_legacy_rxon_cmd active; - struct iwl_legacy_rxon_cmd staging; - - struct iwl_rxon_time_cmd timing; - - struct iwl_qos_info qos_data; - - u8 bcast_sta_id, ap_sta_id; - - u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd; - u8 qos_cmd; - u8 wep_key_cmd; - - struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; - u8 key_mapping_keys; - - __le32 station_flags; - - struct { - bool non_gf_sta_present; - u8 protection; - bool enabled, is_40mhz; - u8 extension_chan_offset; - } ht; -}; - -struct iwl_priv { - - /* ieee device used by generic ieee processing code */ - struct ieee80211_hw *hw; - struct ieee80211_channel *ieee_channels; - struct ieee80211_rate *ieee_rates; - struct iwl_cfg *cfg; - - /* temporary frame storage list */ - struct list_head free_frames; - int frames_count; - - enum ieee80211_band band; - int alloc_rxb_page; - - void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb); - - struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; - - /* spectrum measurement report caching */ - struct iwl_spectrum_notification measure_report; - u8 measurement_status; - - /* ucode beacon time */ - u32 ucode_beacon_time; - int missed_beacon_threshold; - - /* track IBSS manager (last beacon) status */ - u32 ibss_manager; - - /* force reset */ - struct iwl_force_reset force_reset; - - /* we allocate array of iwl_channel_info for NIC's valid channels. - * Access via channel # using indirect index array */ - struct iwl_channel_info *channel_info; /* channel info array */ - u8 channel_count; /* # of channels */ - - /* thermal calibration */ - s32 temperature; /* degrees Kelvin */ - s32 last_temperature; - - /* init calibration results */ - struct iwl_calib_result calib_results[IWL_CALIB_MAX]; - - /* Scan related variables */ - unsigned long scan_start; - unsigned long scan_start_tsf; - void *scan_cmd; - enum ieee80211_band scan_band; - struct cfg80211_scan_request *scan_request; - struct ieee80211_vif *scan_vif; - u8 scan_tx_ant[IEEE80211_NUM_BANDS]; - u8 mgmt_tx_ant; - - /* spinlock */ - spinlock_t lock; /* protect general shared data */ - spinlock_t hcmd_lock; /* protect hcmd */ - spinlock_t reg_lock; /* protect hw register access */ - struct mutex mutex; - - /* basic pci-network driver stuff */ - struct pci_dev *pci_dev; - - /* pci hardware address support */ - void __iomem *hw_base; - u32 hw_rev; - u32 hw_wa_rev; - u8 rev_id; - - /* microcode/device supports multiple contexts */ - u8 valid_contexts; - - /* command queue number */ - u8 cmd_queue; - - /* max number of station keys */ - u8 sta_key_max_num; - - /* EEPROM MAC addresses */ - struct mac_address addresses[1]; - - /* uCode images, save to reload in case of failure */ - int fw_index; /* firmware we're trying to load */ - u32 ucode_ver; /* version of ucode, copy of - iwl_ucode.ver */ - struct fw_desc ucode_code; /* runtime inst */ - struct fw_desc ucode_data; /* runtime data original */ - struct fw_desc ucode_data_backup; /* runtime data save/restore */ - struct fw_desc ucode_init; /* initialization inst */ - struct fw_desc ucode_init_data; /* initialization data */ - struct fw_desc ucode_boot; /* bootstrap inst */ - enum ucode_type ucode_type; - u8 ucode_write_complete; /* the image write is complete */ - char firmware_name[25]; - - struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX]; - - __le16 switch_channel; - - /* 1st responses from initialize and runtime uCode images. - * _4965's initialize alive response contains some calibration data. */ - struct iwl_init_alive_resp card_alive_init; - struct iwl_alive_resp card_alive; - - u16 active_rate; - - u8 start_calib; - struct iwl_sensitivity_data sensitivity_data; - struct iwl_chain_noise_data chain_noise_data; - __le16 sensitivity_tbl[HD_TABLE_SIZE]; - - struct iwl_ht_config current_ht_config; - - /* Rate scaling data */ - u8 retry_rate; - - wait_queue_head_t wait_command_queue; - - int activity_timer_active; - - /* Rx and Tx DMA processing queues */ - struct iwl_rx_queue rxq; - struct iwl_tx_queue *txq; - unsigned long txq_ctx_active_msk; - struct iwl_dma_ptr kw; /* keep warm address */ - struct iwl_dma_ptr scd_bc_tbls; - - u32 scd_base_addr; /* scheduler sram base address */ - - unsigned long status; - - /* counts mgmt, ctl, and data packets */ - struct traffic_stats tx_stats; - struct traffic_stats rx_stats; - - /* counts interrupts */ - struct isr_statistics isr_stats; - - struct iwl_power_mgr power_data; - - /* context information */ - u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */ - - /* station table variables */ - - /* Note: if lock and sta_lock are needed, lock must be acquired first */ - spinlock_t sta_lock; - int num_stations; - struct iwl_station_entry stations[IWL_STATION_COUNT]; - unsigned long ucode_key_table; - - /* queue refcounts */ -#define IWL_MAX_HW_QUEUES 32 - unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)]; - /* for each AC */ - atomic_t queue_stop_count[4]; - - /* Indication if ieee80211_ops->open has been called */ - u8 is_open; - - u8 mac80211_registered; - - /* eeprom -- this is in the card's little endian byte order */ - u8 *eeprom; - struct iwl_eeprom_calib_info *calib_info; - - enum nl80211_iftype iw_mode; - - /* Last Rx'd beacon timestamp */ - u64 timestamp; - - union { -#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE) - struct { - void *shared_virt; - dma_addr_t shared_phys; - - struct delayed_work thermal_periodic; - struct delayed_work rfkill_poll; - - struct iwl3945_notif_statistics statistics; -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - struct iwl3945_notif_statistics accum_statistics; - struct iwl3945_notif_statistics delta_statistics; - struct iwl3945_notif_statistics max_delta; -#endif - - u32 sta_supp_rates; - int last_rx_rssi; /* From Rx packet statistics */ - - /* Rx'd packet timing information */ - u32 last_beacon_time; - u64 last_tsf; - - /* - * each calibration channel group in the - * EEPROM has a derived clip setting for - * each rate. - */ - const struct iwl3945_clip_group clip_groups[5]; - - } _3945; -#endif -#if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE) - struct { - struct iwl_rx_phy_res last_phy_res; - bool last_phy_res_valid; - - struct completion firmware_loading_complete; - - /* - * chain noise reset and gain commands are the - * two extra calibration commands follows the standard - * phy calibration commands - */ - u8 phy_calib_chain_noise_reset_cmd; - u8 phy_calib_chain_noise_gain_cmd; - - struct iwl_notif_statistics statistics; -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - struct iwl_notif_statistics accum_statistics; - struct iwl_notif_statistics delta_statistics; - struct iwl_notif_statistics max_delta; -#endif - - } _4965; -#endif - }; - - struct iwl_hw_params hw_params; - - u32 inta_mask; - - struct workqueue_struct *workqueue; - - struct work_struct restart; - struct work_struct scan_completed; - struct work_struct rx_replenish; - struct work_struct abort_scan; - - struct iwl_rxon_context *beacon_ctx; - struct sk_buff *beacon_skb; - - struct work_struct tx_flush; - - struct tasklet_struct irq_tasklet; - - struct delayed_work init_alive_start; - struct delayed_work alive_start; - struct delayed_work scan_check; - - /* TX Power */ - s8 tx_power_user_lmt; - s8 tx_power_device_lmt; - s8 tx_power_next; - - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - /* debugging info */ - u32 debug_level; /* per device debugging will override global - iwlegacy_debug_level if set */ -#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */ -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS - /* debugfs */ - u16 tx_traffic_idx; - u16 rx_traffic_idx; - u8 *tx_traffic; - u8 *rx_traffic; - struct dentry *debugfs_dir; - u32 dbgfs_sram_offset, dbgfs_sram_len; - bool disable_ht40; -#endif /* CONFIG_IWLWIFI_LEGACY_DEBUGFS */ - - struct work_struct txpower_work; - u32 disable_sens_cal; - u32 disable_chain_noise_cal; - u32 disable_tx_power_cal; - struct work_struct run_time_calib_work; - struct timer_list statistics_periodic; - struct timer_list watchdog; - bool hw_ready; - - struct led_classdev led; - unsigned long blink_on, blink_off; - bool led_registered; -}; /*iwl_priv */ - -static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id) -{ - set_bit(txq_id, &priv->txq_ctx_active_msk); -} - -static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id) -{ - clear_bit(txq_id, &priv->txq_ctx_active_msk); -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -/* - * iwl_legacy_get_debug_level: Return active debug level for device - * - * Using sysfs it is possible to set per device debug level. This debug - * level will be used if set, otherwise the global debug level which can be - * set via module parameter is used. - */ -static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv) -{ - if (priv->debug_level) - return priv->debug_level; - else - return iwlegacy_debug_level; -} -#else -static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv) -{ - return iwlegacy_debug_level; -} -#endif - - -static inline struct ieee80211_hdr * -iwl_legacy_tx_queue_get_hdr(struct iwl_priv *priv, - int txq_id, int idx) -{ - if (priv->txq[txq_id].txb[idx].skb) - return (struct ieee80211_hdr *)priv->txq[txq_id]. - txb[idx].skb->data; - return NULL; -} - -static inline struct iwl_rxon_context * -iwl_legacy_rxon_ctx_from_vif(struct ieee80211_vif *vif) -{ - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - - return vif_priv->ctx; -} - -#define for_each_context(priv, ctx) \ - for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \ - ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \ - if (priv->valid_contexts & BIT(ctx->ctxid)) - -static inline int iwl_legacy_is_associated(struct iwl_priv *priv, - enum iwl_rxon_context_id ctxid) -{ - return (priv->contexts[ctxid].active.filter_flags & - RXON_FILTER_ASSOC_MSK) ? 1 : 0; -} - -static inline int iwl_legacy_is_any_associated(struct iwl_priv *priv) -{ - return iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS); -} - -static inline int iwl_legacy_is_associated_ctx(struct iwl_rxon_context *ctx) -{ - return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; -} - -static inline int iwl_legacy_is_channel_valid(const struct iwl_channel_info *ch_info) -{ - if (ch_info == NULL) - return 0; - return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; -} - -static inline int iwl_legacy_is_channel_radar(const struct iwl_channel_info *ch_info) -{ - return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; -} - -static inline u8 iwl_legacy_is_channel_a_band(const struct iwl_channel_info *ch_info) -{ - return ch_info->band == IEEE80211_BAND_5GHZ; -} - -static inline int -iwl_legacy_is_channel_passive(const struct iwl_channel_info *ch) -{ - return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; -} - -static inline int -iwl_legacy_is_channel_ibss(const struct iwl_channel_info *ch) -{ - return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0; -} - -static inline void -__iwl_legacy_free_pages(struct iwl_priv *priv, struct page *page) -{ - __free_pages(page, priv->hw_params.rx_page_order); - priv->alloc_rxb_page--; -} - -static inline void iwl_legacy_free_pages(struct iwl_priv *priv, unsigned long page) -{ - free_pages(page, priv->hw_params.rx_page_order); - priv->alloc_rxb_page--; -} -#endif /* __iwl_legacy_dev_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-devtrace.c b/drivers/net/wireless/iwlegacy/iwl-devtrace.c deleted file mode 100644 index acec99197ce0..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-devtrace.c +++ /dev/null @@ -1,42 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2009 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/module.h> - -/* sparse doesn't like tracepoint macros */ -#ifndef __CHECKER__ -#include "iwl-dev.h" - -#define CREATE_TRACE_POINTS -#include "iwl-devtrace.h" - -EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_iowrite8); -EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ioread32); -EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_iowrite32); -EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_rx); -EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_tx); -EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ucode_error); -#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-devtrace.h b/drivers/net/wireless/iwlegacy/iwl-devtrace.h deleted file mode 100644 index a443725ba6be..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-devtrace.h +++ /dev/null @@ -1,210 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2009 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#if !defined(__IWLWIFI_LEGACY_DEVICE_TRACE) || defined(TRACE_HEADER_MULTI_READ) -#define __IWLWIFI_LEGACY_DEVICE_TRACE - -#include <linux/tracepoint.h> - -#if !defined(CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING) || defined(__CHECKER__) -#undef TRACE_EVENT -#define TRACE_EVENT(name, proto, ...) \ -static inline void trace_ ## name(proto) {} -#endif - - -#define PRIV_ENTRY __field(struct iwl_priv *, priv) -#define PRIV_ASSIGN (__entry->priv = priv) - -#undef TRACE_SYSTEM -#define TRACE_SYSTEM iwlwifi_legacy_io - -TRACE_EVENT(iwlwifi_legacy_dev_ioread32, - TP_PROTO(struct iwl_priv *priv, u32 offs, u32 val), - TP_ARGS(priv, offs, val), - TP_STRUCT__entry( - PRIV_ENTRY - __field(u32, offs) - __field(u32, val) - ), - TP_fast_assign( - PRIV_ASSIGN; - __entry->offs = offs; - __entry->val = val; - ), - TP_printk("[%p] read io[%#x] = %#x", __entry->priv, - __entry->offs, __entry->val) -); - -TRACE_EVENT(iwlwifi_legacy_dev_iowrite8, - TP_PROTO(struct iwl_priv *priv, u32 offs, u8 val), - TP_ARGS(priv, offs, val), - TP_STRUCT__entry( - PRIV_ENTRY - __field(u32, offs) - __field(u8, val) - ), - TP_fast_assign( - PRIV_ASSIGN; - __entry->offs = offs; - __entry->val = val; - ), - TP_printk("[%p] write io[%#x] = %#x)", __entry->priv, - __entry->offs, __entry->val) -); - -TRACE_EVENT(iwlwifi_legacy_dev_iowrite32, - TP_PROTO(struct iwl_priv *priv, u32 offs, u32 val), - TP_ARGS(priv, offs, val), - TP_STRUCT__entry( - PRIV_ENTRY - __field(u32, offs) - __field(u32, val) - ), - TP_fast_assign( - PRIV_ASSIGN; - __entry->offs = offs; - __entry->val = val; - ), - TP_printk("[%p] write io[%#x] = %#x)", __entry->priv, - __entry->offs, __entry->val) -); - -#undef TRACE_SYSTEM -#define TRACE_SYSTEM iwlwifi_legacy_ucode - -#undef TRACE_SYSTEM -#define TRACE_SYSTEM iwlwifi - -TRACE_EVENT(iwlwifi_legacy_dev_hcmd, - TP_PROTO(struct iwl_priv *priv, void *hcmd, size_t len, u32 flags), - TP_ARGS(priv, hcmd, len, flags), - TP_STRUCT__entry( - PRIV_ENTRY - __dynamic_array(u8, hcmd, len) - __field(u32, flags) - ), - TP_fast_assign( - PRIV_ASSIGN; - memcpy(__get_dynamic_array(hcmd), hcmd, len); - __entry->flags = flags; - ), - TP_printk("[%p] hcmd %#.2x (%ssync)", - __entry->priv, ((u8 *)__get_dynamic_array(hcmd))[0], - __entry->flags & CMD_ASYNC ? "a" : "") -); - -TRACE_EVENT(iwlwifi_legacy_dev_rx, - TP_PROTO(struct iwl_priv *priv, void *rxbuf, size_t len), - TP_ARGS(priv, rxbuf, len), - TP_STRUCT__entry( - PRIV_ENTRY - __dynamic_array(u8, rxbuf, len) - ), - TP_fast_assign( - PRIV_ASSIGN; - memcpy(__get_dynamic_array(rxbuf), rxbuf, len); - ), - TP_printk("[%p] RX cmd %#.2x", - __entry->priv, ((u8 *)__get_dynamic_array(rxbuf))[4]) -); - -TRACE_EVENT(iwlwifi_legacy_dev_tx, - TP_PROTO(struct iwl_priv *priv, void *tfd, size_t tfdlen, - void *buf0, size_t buf0_len, - void *buf1, size_t buf1_len), - TP_ARGS(priv, tfd, tfdlen, buf0, buf0_len, buf1, buf1_len), - TP_STRUCT__entry( - PRIV_ENTRY - - __field(size_t, framelen) - __dynamic_array(u8, tfd, tfdlen) - - /* - * Do not insert between or below these items, - * we want to keep the frame together (except - * for the possible padding). - */ - __dynamic_array(u8, buf0, buf0_len) - __dynamic_array(u8, buf1, buf1_len) - ), - TP_fast_assign( - PRIV_ASSIGN; - __entry->framelen = buf0_len + buf1_len; - memcpy(__get_dynamic_array(tfd), tfd, tfdlen); - memcpy(__get_dynamic_array(buf0), buf0, buf0_len); - memcpy(__get_dynamic_array(buf1), buf1, buf1_len); - ), - TP_printk("[%p] TX %.2x (%zu bytes)", - __entry->priv, - ((u8 *)__get_dynamic_array(buf0))[0], - __entry->framelen) -); - -TRACE_EVENT(iwlwifi_legacy_dev_ucode_error, - TP_PROTO(struct iwl_priv *priv, u32 desc, u32 time, - u32 data1, u32 data2, u32 line, u32 blink1, - u32 blink2, u32 ilink1, u32 ilink2), - TP_ARGS(priv, desc, time, data1, data2, line, - blink1, blink2, ilink1, ilink2), - TP_STRUCT__entry( - PRIV_ENTRY - __field(u32, desc) - __field(u32, time) - __field(u32, data1) - __field(u32, data2) - __field(u32, line) - __field(u32, blink1) - __field(u32, blink2) - __field(u32, ilink1) - __field(u32, ilink2) - ), - TP_fast_assign( - PRIV_ASSIGN; - __entry->desc = desc; - __entry->time = time; - __entry->data1 = data1; - __entry->data2 = data2; - __entry->line = line; - __entry->blink1 = blink1; - __entry->blink2 = blink2; - __entry->ilink1 = ilink1; - __entry->ilink2 = ilink2; - ), - TP_printk("[%p] #%02d %010u data 0x%08X 0x%08X line %u, " - "blink 0x%05X 0x%05X ilink 0x%05X 0x%05X", - __entry->priv, __entry->desc, __entry->time, __entry->data1, - __entry->data2, __entry->line, __entry->blink1, - __entry->blink2, __entry->ilink1, __entry->ilink2) -); - -#endif /* __IWLWIFI_DEVICE_TRACE */ - -#undef TRACE_INCLUDE_PATH -#define TRACE_INCLUDE_PATH . -#undef TRACE_INCLUDE_FILE -#define TRACE_INCLUDE_FILE iwl-devtrace -#include <trace/define_trace.h> diff --git a/drivers/net/wireless/iwlegacy/iwl-eeprom.c b/drivers/net/wireless/iwlegacy/iwl-eeprom.c deleted file mode 100644 index 5bf3f49b74ab..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-eeprom.c +++ /dev/null @@ -1,553 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - *****************************************************************************/ - - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/init.h> - -#include <net/mac80211.h> - -#include "iwl-commands.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-debug.h" -#include "iwl-eeprom.h" -#include "iwl-io.h" - -/************************** EEPROM BANDS **************************** - * - * The iwlegacy_eeprom_band definitions below provide the mapping from the - * EEPROM contents to the specific channel number supported for each - * band. - * - * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3 - * definition below maps to physical channel 42 in the 5.2GHz spectrum. - * The specific geography and calibration information for that channel - * is contained in the eeprom map itself. - * - * During init, we copy the eeprom information and channel map - * information into priv->channel_info_24/52 and priv->channel_map_24/52 - * - * channel_map_24/52 provides the index in the channel_info array for a - * given channel. We have to have two separate maps as there is channel - * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and - * band_2 - * - * A value of 0xff stored in the channel_map indicates that the channel - * is not supported by the hardware at all. - * - * A value of 0xfe in the channel_map indicates that the channel is not - * valid for Tx with the current hardware. This means that - * while the system can tune and receive on a given channel, it may not - * be able to associate or transmit any frames on that - * channel. There is no corresponding channel information for that - * entry. - * - *********************************************************************/ - -/* 2.4 GHz */ -const u8 iwlegacy_eeprom_band_1[14] = { - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 -}; - -/* 5.2 GHz bands */ -static const u8 iwlegacy_eeprom_band_2[] = { /* 4915-5080MHz */ - 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 -}; - -static const u8 iwlegacy_eeprom_band_3[] = { /* 5170-5320MHz */ - 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 -}; - -static const u8 iwlegacy_eeprom_band_4[] = { /* 5500-5700MHz */ - 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 -}; - -static const u8 iwlegacy_eeprom_band_5[] = { /* 5725-5825MHz */ - 145, 149, 153, 157, 161, 165 -}; - -static const u8 iwlegacy_eeprom_band_6[] = { /* 2.4 ht40 channel */ - 1, 2, 3, 4, 5, 6, 7 -}; - -static const u8 iwlegacy_eeprom_band_7[] = { /* 5.2 ht40 channel */ - 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157 -}; - -/****************************************************************************** - * - * EEPROM related functions - * -******************************************************************************/ - -static int iwl_legacy_eeprom_verify_signature(struct iwl_priv *priv) -{ - u32 gp = iwl_read32(priv, CSR_EEPROM_GP) & CSR_EEPROM_GP_VALID_MSK; - int ret = 0; - - IWL_DEBUG_EEPROM(priv, "EEPROM signature=0x%08x\n", gp); - switch (gp) { - case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K: - case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K: - break; - default: - IWL_ERR(priv, "bad EEPROM signature," - "EEPROM_GP=0x%08x\n", gp); - ret = -ENOENT; - break; - } - return ret; -} - -const u8 -*iwl_legacy_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) -{ - BUG_ON(offset >= priv->cfg->base_params->eeprom_size); - return &priv->eeprom[offset]; -} -EXPORT_SYMBOL(iwl_legacy_eeprom_query_addr); - -u16 iwl_legacy_eeprom_query16(const struct iwl_priv *priv, size_t offset) -{ - if (!priv->eeprom) - return 0; - return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8); -} -EXPORT_SYMBOL(iwl_legacy_eeprom_query16); - -/** - * iwl_legacy_eeprom_init - read EEPROM contents - * - * Load the EEPROM contents from adapter into priv->eeprom - * - * NOTE: This routine uses the non-debug IO access functions. - */ -int iwl_legacy_eeprom_init(struct iwl_priv *priv) -{ - __le16 *e; - u32 gp = iwl_read32(priv, CSR_EEPROM_GP); - int sz; - int ret; - u16 addr; - - /* allocate eeprom */ - sz = priv->cfg->base_params->eeprom_size; - IWL_DEBUG_EEPROM(priv, "NVM size = %d\n", sz); - priv->eeprom = kzalloc(sz, GFP_KERNEL); - if (!priv->eeprom) { - ret = -ENOMEM; - goto alloc_err; - } - e = (__le16 *)priv->eeprom; - - priv->cfg->ops->lib->apm_ops.init(priv); - - ret = iwl_legacy_eeprom_verify_signature(priv); - if (ret < 0) { - IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp); - ret = -ENOENT; - goto err; - } - - /* Make sure driver (instead of uCode) is allowed to read EEPROM */ - ret = priv->cfg->ops->lib->eeprom_ops.acquire_semaphore(priv); - if (ret < 0) { - IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n"); - ret = -ENOENT; - goto err; - } - - /* eeprom is an array of 16bit values */ - for (addr = 0; addr < sz; addr += sizeof(u16)) { - u32 r; - - _iwl_legacy_write32(priv, CSR_EEPROM_REG, - CSR_EEPROM_REG_MSK_ADDR & (addr << 1)); - - ret = iwl_poll_bit(priv, CSR_EEPROM_REG, - CSR_EEPROM_REG_READ_VALID_MSK, - CSR_EEPROM_REG_READ_VALID_MSK, - IWL_EEPROM_ACCESS_TIMEOUT); - if (ret < 0) { - IWL_ERR(priv, "Time out reading EEPROM[%d]\n", - addr); - goto done; - } - r = _iwl_legacy_read_direct32(priv, CSR_EEPROM_REG); - e[addr / 2] = cpu_to_le16(r >> 16); - } - - IWL_DEBUG_EEPROM(priv, "NVM Type: %s, version: 0x%x\n", - "EEPROM", - iwl_legacy_eeprom_query16(priv, EEPROM_VERSION)); - - ret = 0; -done: - priv->cfg->ops->lib->eeprom_ops.release_semaphore(priv); - -err: - if (ret) - iwl_legacy_eeprom_free(priv); - /* Reset chip to save power until we load uCode during "up". */ - iwl_legacy_apm_stop(priv); -alloc_err: - return ret; -} -EXPORT_SYMBOL(iwl_legacy_eeprom_init); - -void iwl_legacy_eeprom_free(struct iwl_priv *priv) -{ - kfree(priv->eeprom); - priv->eeprom = NULL; -} -EXPORT_SYMBOL(iwl_legacy_eeprom_free); - -static void iwl_legacy_init_band_reference(const struct iwl_priv *priv, - int eep_band, int *eeprom_ch_count, - const struct iwl_eeprom_channel **eeprom_ch_info, - const u8 **eeprom_ch_index) -{ - u32 offset = priv->cfg->ops->lib-> - eeprom_ops.regulatory_bands[eep_band - 1]; - switch (eep_band) { - case 1: /* 2.4GHz band */ - *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_1); - *eeprom_ch_info = (struct iwl_eeprom_channel *) - iwl_legacy_eeprom_query_addr(priv, offset); - *eeprom_ch_index = iwlegacy_eeprom_band_1; - break; - case 2: /* 4.9GHz band */ - *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_2); - *eeprom_ch_info = (struct iwl_eeprom_channel *) - iwl_legacy_eeprom_query_addr(priv, offset); - *eeprom_ch_index = iwlegacy_eeprom_band_2; - break; - case 3: /* 5.2GHz band */ - *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_3); - *eeprom_ch_info = (struct iwl_eeprom_channel *) - iwl_legacy_eeprom_query_addr(priv, offset); - *eeprom_ch_index = iwlegacy_eeprom_band_3; - break; - case 4: /* 5.5GHz band */ - *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_4); - *eeprom_ch_info = (struct iwl_eeprom_channel *) - iwl_legacy_eeprom_query_addr(priv, offset); - *eeprom_ch_index = iwlegacy_eeprom_band_4; - break; - case 5: /* 5.7GHz band */ - *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_5); - *eeprom_ch_info = (struct iwl_eeprom_channel *) - iwl_legacy_eeprom_query_addr(priv, offset); - *eeprom_ch_index = iwlegacy_eeprom_band_5; - break; - case 6: /* 2.4GHz ht40 channels */ - *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_6); - *eeprom_ch_info = (struct iwl_eeprom_channel *) - iwl_legacy_eeprom_query_addr(priv, offset); - *eeprom_ch_index = iwlegacy_eeprom_band_6; - break; - case 7: /* 5 GHz ht40 channels */ - *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_7); - *eeprom_ch_info = (struct iwl_eeprom_channel *) - iwl_legacy_eeprom_query_addr(priv, offset); - *eeprom_ch_index = iwlegacy_eeprom_band_7; - break; - default: - BUG(); - } -} - -#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \ - ? # x " " : "") -/** - * iwl_legacy_mod_ht40_chan_info - Copy ht40 channel info into driver's priv. - * - * Does not set up a command, or touch hardware. - */ -static int iwl_legacy_mod_ht40_chan_info(struct iwl_priv *priv, - enum ieee80211_band band, u16 channel, - const struct iwl_eeprom_channel *eeprom_ch, - u8 clear_ht40_extension_channel) -{ - struct iwl_channel_info *ch_info; - - ch_info = (struct iwl_channel_info *) - iwl_legacy_get_channel_info(priv, band, channel); - - if (!iwl_legacy_is_channel_valid(ch_info)) - return -1; - - IWL_DEBUG_EEPROM(priv, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):" - " Ad-Hoc %ssupported\n", - ch_info->channel, - iwl_legacy_is_channel_a_band(ch_info) ? - "5.2" : "2.4", - CHECK_AND_PRINT(IBSS), - CHECK_AND_PRINT(ACTIVE), - CHECK_AND_PRINT(RADAR), - CHECK_AND_PRINT(WIDE), - CHECK_AND_PRINT(DFS), - eeprom_ch->flags, - eeprom_ch->max_power_avg, - ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS) - && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ? - "" : "not "); - - ch_info->ht40_eeprom = *eeprom_ch; - ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg; - ch_info->ht40_flags = eeprom_ch->flags; - if (eeprom_ch->flags & EEPROM_CHANNEL_VALID) - ch_info->ht40_extension_channel &= - ~clear_ht40_extension_channel; - - return 0; -} - -#define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ - ? # x " " : "") - -/** - * iwl_legacy_init_channel_map - Set up driver's info for all possible channels - */ -int iwl_legacy_init_channel_map(struct iwl_priv *priv) -{ - int eeprom_ch_count = 0; - const u8 *eeprom_ch_index = NULL; - const struct iwl_eeprom_channel *eeprom_ch_info = NULL; - int band, ch; - struct iwl_channel_info *ch_info; - - if (priv->channel_count) { - IWL_DEBUG_EEPROM(priv, "Channel map already initialized.\n"); - return 0; - } - - IWL_DEBUG_EEPROM(priv, "Initializing regulatory info from EEPROM\n"); - - priv->channel_count = - ARRAY_SIZE(iwlegacy_eeprom_band_1) + - ARRAY_SIZE(iwlegacy_eeprom_band_2) + - ARRAY_SIZE(iwlegacy_eeprom_band_3) + - ARRAY_SIZE(iwlegacy_eeprom_band_4) + - ARRAY_SIZE(iwlegacy_eeprom_band_5); - - IWL_DEBUG_EEPROM(priv, "Parsing data for %d channels.\n", - priv->channel_count); - - priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) * - priv->channel_count, GFP_KERNEL); - if (!priv->channel_info) { - IWL_ERR(priv, "Could not allocate channel_info\n"); - priv->channel_count = 0; - return -ENOMEM; - } - - ch_info = priv->channel_info; - - /* Loop through the 5 EEPROM bands adding them in order to the - * channel map we maintain (that contains additional information than - * what just in the EEPROM) */ - for (band = 1; band <= 5; band++) { - - iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count, - &eeprom_ch_info, &eeprom_ch_index); - - /* Loop through each band adding each of the channels */ - for (ch = 0; ch < eeprom_ch_count; ch++) { - ch_info->channel = eeprom_ch_index[ch]; - ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : - IEEE80211_BAND_5GHZ; - - /* permanently store EEPROM's channel regulatory flags - * and max power in channel info database. */ - ch_info->eeprom = eeprom_ch_info[ch]; - - /* Copy the run-time flags so they are there even on - * invalid channels */ - ch_info->flags = eeprom_ch_info[ch].flags; - /* First write that ht40 is not enabled, and then enable - * one by one */ - ch_info->ht40_extension_channel = - IEEE80211_CHAN_NO_HT40; - - if (!(iwl_legacy_is_channel_valid(ch_info))) { - IWL_DEBUG_EEPROM(priv, - "Ch. %d Flags %x [%sGHz] - " - "No traffic\n", - ch_info->channel, - ch_info->flags, - iwl_legacy_is_channel_a_band(ch_info) ? - "5.2" : "2.4"); - ch_info++; - continue; - } - - /* Initialize regulatory-based run-time data */ - ch_info->max_power_avg = ch_info->curr_txpow = - eeprom_ch_info[ch].max_power_avg; - ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; - ch_info->min_power = 0; - - IWL_DEBUG_EEPROM(priv, "Ch. %d [%sGHz] " - "%s%s%s%s%s%s(0x%02x %ddBm):" - " Ad-Hoc %ssupported\n", - ch_info->channel, - iwl_legacy_is_channel_a_band(ch_info) ? - "5.2" : "2.4", - CHECK_AND_PRINT_I(VALID), - CHECK_AND_PRINT_I(IBSS), - CHECK_AND_PRINT_I(ACTIVE), - CHECK_AND_PRINT_I(RADAR), - CHECK_AND_PRINT_I(WIDE), - CHECK_AND_PRINT_I(DFS), - eeprom_ch_info[ch].flags, - eeprom_ch_info[ch].max_power_avg, - ((eeprom_ch_info[ch]. - flags & EEPROM_CHANNEL_IBSS) - && !(eeprom_ch_info[ch]. - flags & EEPROM_CHANNEL_RADAR)) - ? "" : "not "); - - ch_info++; - } - } - - /* Check if we do have HT40 channels */ - if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] == - EEPROM_REGULATORY_BAND_NO_HT40 && - priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] == - EEPROM_REGULATORY_BAND_NO_HT40) - return 0; - - /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */ - for (band = 6; band <= 7; band++) { - enum ieee80211_band ieeeband; - - iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count, - &eeprom_ch_info, &eeprom_ch_index); - - /* EEPROM band 6 is 2.4, band 7 is 5 GHz */ - ieeeband = - (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; - - /* Loop through each band adding each of the channels */ - for (ch = 0; ch < eeprom_ch_count; ch++) { - /* Set up driver's info for lower half */ - iwl_legacy_mod_ht40_chan_info(priv, ieeeband, - eeprom_ch_index[ch], - &eeprom_ch_info[ch], - IEEE80211_CHAN_NO_HT40PLUS); - - /* Set up driver's info for upper half */ - iwl_legacy_mod_ht40_chan_info(priv, ieeeband, - eeprom_ch_index[ch] + 4, - &eeprom_ch_info[ch], - IEEE80211_CHAN_NO_HT40MINUS); - } - } - - return 0; -} -EXPORT_SYMBOL(iwl_legacy_init_channel_map); - -/* - * iwl_legacy_free_channel_map - undo allocations in iwl_legacy_init_channel_map - */ -void iwl_legacy_free_channel_map(struct iwl_priv *priv) -{ - kfree(priv->channel_info); - priv->channel_count = 0; -} -EXPORT_SYMBOL(iwl_legacy_free_channel_map); - -/** - * iwl_legacy_get_channel_info - Find driver's private channel info - * - * Based on band and channel number. - */ -const struct -iwl_channel_info *iwl_legacy_get_channel_info(const struct iwl_priv *priv, - enum ieee80211_band band, u16 channel) -{ - int i; - - switch (band) { - case IEEE80211_BAND_5GHZ: - for (i = 14; i < priv->channel_count; i++) { - if (priv->channel_info[i].channel == channel) - return &priv->channel_info[i]; - } - break; - case IEEE80211_BAND_2GHZ: - if (channel >= 1 && channel <= 14) - return &priv->channel_info[channel - 1]; - break; - default: - BUG(); - } - - return NULL; -} -EXPORT_SYMBOL(iwl_legacy_get_channel_info); diff --git a/drivers/net/wireless/iwlegacy/iwl-eeprom.h b/drivers/net/wireless/iwlegacy/iwl-eeprom.h deleted file mode 100644 index c59c81002022..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-eeprom.h +++ /dev/null @@ -1,344 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - *****************************************************************************/ - -#ifndef __iwl_legacy_eeprom_h__ -#define __iwl_legacy_eeprom_h__ - -#include <net/mac80211.h> - -struct iwl_priv; - -/* - * EEPROM access time values: - * - * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG. - * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1). - * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec. - * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG. - */ -#define IWL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */ - -#define IWL_EEPROM_SEM_TIMEOUT 10 /* microseconds */ -#define IWL_EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ - - -/* - * Regulatory channel usage flags in EEPROM struct iwl4965_eeprom_channel.flags. - * - * IBSS and/or AP operation is allowed *only* on those channels with - * (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because - * RADAR detection is not supported by the 4965 driver, but is a - * requirement for establishing a new network for legal operation on channels - * requiring RADAR detection or restricting ACTIVE scanning. - * - * NOTE: "WIDE" flag does not indicate anything about "HT40" 40 MHz channels. - * It only indicates that 20 MHz channel use is supported; HT40 channel - * usage is indicated by a separate set of regulatory flags for each - * HT40 channel pair. - * - * NOTE: Using a channel inappropriately will result in a uCode error! - */ -#define IWL_NUM_TX_CALIB_GROUPS 5 -enum { - EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */ - EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */ - /* Bit 2 Reserved */ - EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */ - EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */ - EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */ - /* Bit 6 Reserved (was Narrow Channel) */ - EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */ -}; - -/* SKU Capabilities */ -/* 3945 only */ -#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0) -#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1) - -/* *regulatory* channel data format in eeprom, one for each channel. - * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */ -struct iwl_eeprom_channel { - u8 flags; /* EEPROM_CHANNEL_* flags copied from EEPROM */ - s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */ -} __packed; - -/* 3945 Specific */ -#define EEPROM_3945_EEPROM_VERSION (0x2f) - -/* 4965 has two radio transmitters (and 3 radio receivers) */ -#define EEPROM_TX_POWER_TX_CHAINS (2) - -/* 4965 has room for up to 8 sets of txpower calibration data */ -#define EEPROM_TX_POWER_BANDS (8) - -/* 4965 factory calibration measures txpower gain settings for - * each of 3 target output levels */ -#define EEPROM_TX_POWER_MEASUREMENTS (3) - -/* 4965 Specific */ -/* 4965 driver does not work with txpower calibration version < 5 */ -#define EEPROM_4965_TX_POWER_VERSION (5) -#define EEPROM_4965_EEPROM_VERSION (0x2f) -#define EEPROM_4965_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */ -#define EEPROM_4965_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */ -#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */ -#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */ - -/* 2.4 GHz */ -extern const u8 iwlegacy_eeprom_band_1[14]; - -/* - * factory calibration data for one txpower level, on one channel, - * measured on one of the 2 tx chains (radio transmitter and associated - * antenna). EEPROM contains: - * - * 1) Temperature (degrees Celsius) of device when measurement was made. - * - * 2) Gain table index used to achieve the target measurement power. - * This refers to the "well-known" gain tables (see iwl-4965-hw.h). - * - * 3) Actual measured output power, in half-dBm ("34" = 17 dBm). - * - * 4) RF power amplifier detector level measurement (not used). - */ -struct iwl_eeprom_calib_measure { - u8 temperature; /* Device temperature (Celsius) */ - u8 gain_idx; /* Index into gain table */ - u8 actual_pow; /* Measured RF output power, half-dBm */ - s8 pa_det; /* Power amp detector level (not used) */ -} __packed; - - -/* - * measurement set for one channel. EEPROM contains: - * - * 1) Channel number measured - * - * 2) Measurements for each of 3 power levels for each of 2 radio transmitters - * (a.k.a. "tx chains") (6 measurements altogether) - */ -struct iwl_eeprom_calib_ch_info { - u8 ch_num; - struct iwl_eeprom_calib_measure - measurements[EEPROM_TX_POWER_TX_CHAINS] - [EEPROM_TX_POWER_MEASUREMENTS]; -} __packed; - -/* - * txpower subband info. - * - * For each frequency subband, EEPROM contains the following: - * - * 1) First and last channels within range of the subband. "0" values - * indicate that this sample set is not being used. - * - * 2) Sample measurement sets for 2 channels close to the range endpoints. - */ -struct iwl_eeprom_calib_subband_info { - u8 ch_from; /* channel number of lowest channel in subband */ - u8 ch_to; /* channel number of highest channel in subband */ - struct iwl_eeprom_calib_ch_info ch1; - struct iwl_eeprom_calib_ch_info ch2; -} __packed; - - -/* - * txpower calibration info. EEPROM contains: - * - * 1) Factory-measured saturation power levels (maximum levels at which - * tx power amplifier can output a signal without too much distortion). - * There is one level for 2.4 GHz band and one for 5 GHz band. These - * values apply to all channels within each of the bands. - * - * 2) Factory-measured power supply voltage level. This is assumed to be - * constant (i.e. same value applies to all channels/bands) while the - * factory measurements are being made. - * - * 3) Up to 8 sets of factory-measured txpower calibration values. - * These are for different frequency ranges, since txpower gain - * characteristics of the analog radio circuitry vary with frequency. - * - * Not all sets need to be filled with data; - * struct iwl_eeprom_calib_subband_info contains range of channels - * (0 if unused) for each set of data. - */ -struct iwl_eeprom_calib_info { - u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */ - u8 saturation_power52; /* half-dBm */ - __le16 voltage; /* signed */ - struct iwl_eeprom_calib_subband_info - band_info[EEPROM_TX_POWER_BANDS]; -} __packed; - - -/* General */ -#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */ -#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */ -#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */ -#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */ -#define EEPROM_VERSION (2*0x44) /* 2 bytes */ -#define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */ -#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */ -#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */ -#define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */ -#define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */ - -/* The following masks are to be applied on EEPROM_RADIO_CONFIG */ -#define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */ -#define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */ -#define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */ -#define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */ -#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */ -#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */ - -#define EEPROM_3945_RF_CFG_TYPE_MAX 0x0 -#define EEPROM_4965_RF_CFG_TYPE_MAX 0x1 - -/* - * Per-channel regulatory data. - * - * Each channel that *might* be supported by iwl has a fixed location - * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory - * txpower (MSB). - * - * Entries immediately below are for 20 MHz channel width. HT40 (40 MHz) - * channels (only for 4965, not supported by 3945) appear later in the EEPROM. - * - * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 - */ -#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */ -#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */ -#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */ - -/* - * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196, - * 5.0 GHz channels 7, 8, 11, 12, 16 - * (4915-5080MHz) (none of these is ever supported) - */ -#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */ -#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */ - -/* - * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 - * (5170-5320MHz) - */ -#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */ -#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */ - -/* - * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 - * (5500-5700MHz) - */ -#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */ -#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */ - -/* - * 5.7 GHz channels 145, 149, 153, 157, 161, 165 - * (5725-5825MHz) - */ -#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */ -#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */ - -/* - * 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11) - * - * The channel listed is the center of the lower 20 MHz half of the channel. - * The overall center frequency is actually 2 channels (10 MHz) above that, - * and the upper half of each HT40 channel is centered 4 channels (20 MHz) away - * from the lower half; e.g. the upper half of HT40 channel 1 is channel 5, - * and the overall HT40 channel width centers on channel 3. - * - * NOTE: The RXON command uses 20 MHz channel numbers to specify the - * control channel to which to tune. RXON also specifies whether the - * control channel is the upper or lower half of a HT40 channel. - * - * NOTE: 4965 does not support HT40 channels on 2.4 GHz. - */ -#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0) /* 14 bytes */ - -/* - * 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64), - * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161) - */ -#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8) /* 22 bytes */ - -#define EEPROM_REGULATORY_BAND_NO_HT40 (0) - -struct iwl_eeprom_ops { - const u32 regulatory_bands[7]; - int (*acquire_semaphore) (struct iwl_priv *priv); - void (*release_semaphore) (struct iwl_priv *priv); -}; - - -int iwl_legacy_eeprom_init(struct iwl_priv *priv); -void iwl_legacy_eeprom_free(struct iwl_priv *priv); -const u8 *iwl_legacy_eeprom_query_addr(const struct iwl_priv *priv, - size_t offset); -u16 iwl_legacy_eeprom_query16(const struct iwl_priv *priv, size_t offset); -int iwl_legacy_init_channel_map(struct iwl_priv *priv); -void iwl_legacy_free_channel_map(struct iwl_priv *priv); -const struct iwl_channel_info *iwl_legacy_get_channel_info( - const struct iwl_priv *priv, - enum ieee80211_band band, u16 channel); - -#endif /* __iwl_legacy_eeprom_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-fh.h b/drivers/net/wireless/iwlegacy/iwl-fh.h deleted file mode 100644 index 6e6091816e36..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-fh.h +++ /dev/null @@ -1,513 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -#ifndef __iwl_legacy_fh_h__ -#define __iwl_legacy_fh_h__ - -/****************************/ -/* Flow Handler Definitions */ -/****************************/ - -/** - * This I/O area is directly read/writable by driver (e.g. Linux uses writel()) - * Addresses are offsets from device's PCI hardware base address. - */ -#define FH_MEM_LOWER_BOUND (0x1000) -#define FH_MEM_UPPER_BOUND (0x2000) - -/** - * Keep-Warm (KW) buffer base address. - * - * Driver must allocate a 4KByte buffer that is used by 4965 for keeping the - * host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency - * DRAM access when 4965 is Txing or Rxing. The dummy accesses prevent host - * from going into a power-savings mode that would cause higher DRAM latency, - * and possible data over/under-runs, before all Tx/Rx is complete. - * - * Driver loads FH_KW_MEM_ADDR_REG with the physical address (bits 35:4) - * of the buffer, which must be 4K aligned. Once this is set up, the 4965 - * automatically invokes keep-warm accesses when normal accesses might not - * be sufficient to maintain fast DRAM response. - * - * Bit fields: - * 31-0: Keep-warm buffer physical base address [35:4], must be 4K aligned - */ -#define FH_KW_MEM_ADDR_REG (FH_MEM_LOWER_BOUND + 0x97C) - - -/** - * TFD Circular Buffers Base (CBBC) addresses - * - * 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident - * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs) - * (see struct iwl_tfd_frame). These 16 pointer registers are offset by 0x04 - * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte - * aligned (address bits 0-7 must be 0). - * - * Bit fields in each pointer register: - * 27-0: TFD CB physical base address [35:8], must be 256-byte aligned - */ -#define FH_MEM_CBBC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0) -#define FH_MEM_CBBC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA10) - -/* Find TFD CB base pointer for given queue (range 0-15). */ -#define FH_MEM_CBBC_QUEUE(x) (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4) - - -/** - * Rx SRAM Control and Status Registers (RSCSR) - * - * These registers provide handshake between driver and 4965 for the Rx queue - * (this queue handles *all* command responses, notifications, Rx data, etc. - * sent from 4965 uCode to host driver). Unlike Tx, there is only one Rx - * queue, and only one Rx DMA/FIFO channel. Also unlike Tx, which can - * concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer - * Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1 - * mapping between RBDs and RBs. - * - * Driver must allocate host DRAM memory for the following, and set the - * physical address of each into 4965 registers: - * - * 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256 - * entries (although any power of 2, up to 4096, is selectable by driver). - * Each entry (1 dword) points to a receive buffer (RB) of consistent size - * (typically 4K, although 8K or 16K are also selectable by driver). - * Driver sets up RB size and number of RBDs in the CB via Rx config - * register FH_MEM_RCSR_CHNL0_CONFIG_REG. - * - * Bit fields within one RBD: - * 27-0: Receive Buffer physical address bits [35:8], 256-byte aligned - * - * Driver sets physical address [35:8] of base of RBD circular buffer - * into FH_RSCSR_CHNL0_RBDCB_BASE_REG [27:0]. - * - * 2) Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers - * (RBs) have been filled, via a "write pointer", actually the index of - * the RB's corresponding RBD within the circular buffer. Driver sets - * physical address [35:4] into FH_RSCSR_CHNL0_STTS_WPTR_REG [31:0]. - * - * Bit fields in lower dword of Rx status buffer (upper dword not used - * by driver; see struct iwl4965_shared, val0): - * 31-12: Not used by driver - * 11- 0: Index of last filled Rx buffer descriptor - * (4965 writes, driver reads this value) - * - * As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must - * enter pointers to these RBs into contiguous RBD circular buffer entries, - * and update the 4965's "write" index register, - * FH_RSCSR_CHNL0_RBDCB_WPTR_REG. - * - * This "write" index corresponds to the *next* RBD that the driver will make - * available, i.e. one RBD past the tail of the ready-to-fill RBDs within - * the circular buffer. This value should initially be 0 (before preparing any - * RBs), should be 8 after preparing the first 8 RBs (for example), and must - * wrap back to 0 at the end of the circular buffer (but don't wrap before - * "read" index has advanced past 1! See below). - * NOTE: 4965 EXPECTS THE WRITE INDEX TO BE INCREMENTED IN MULTIPLES OF 8. - * - * As the 4965 fills RBs (referenced from contiguous RBDs within the circular - * buffer), it updates the Rx status buffer in host DRAM, 2) described above, - * to tell the driver the index of the latest filled RBD. The driver must - * read this "read" index from DRAM after receiving an Rx interrupt from 4965. - * - * The driver must also internally keep track of a third index, which is the - * next RBD to process. When receiving an Rx interrupt, driver should process - * all filled but unprocessed RBs up to, but not including, the RB - * corresponding to the "read" index. For example, if "read" index becomes "1", - * driver may process the RB pointed to by RBD 0. Depending on volume of - * traffic, there may be many RBs to process. - * - * If read index == write index, 4965 thinks there is no room to put new data. - * Due to this, the maximum number of filled RBs is 255, instead of 256. To - * be safe, make sure that there is a gap of at least 2 RBDs between "write" - * and "read" indexes; that is, make sure that there are no more than 254 - * buffers waiting to be filled. - */ -#define FH_MEM_RSCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xBC0) -#define FH_MEM_RSCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xC00) -#define FH_MEM_RSCSR_CHNL0 (FH_MEM_RSCSR_LOWER_BOUND) - -/** - * Physical base address of 8-byte Rx Status buffer. - * Bit fields: - * 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned. - */ -#define FH_RSCSR_CHNL0_STTS_WPTR_REG (FH_MEM_RSCSR_CHNL0) - -/** - * Physical base address of Rx Buffer Descriptor Circular Buffer. - * Bit fields: - * 27-0: RBD CD physical base address [35:8], must be 256-byte aligned. - */ -#define FH_RSCSR_CHNL0_RBDCB_BASE_REG (FH_MEM_RSCSR_CHNL0 + 0x004) - -/** - * Rx write pointer (index, really!). - * Bit fields: - * 11-0: Index of driver's most recent prepared-to-be-filled RBD, + 1. - * NOTE: For 256-entry circular buffer, use only bits [7:0]. - */ -#define FH_RSCSR_CHNL0_RBDCB_WPTR_REG (FH_MEM_RSCSR_CHNL0 + 0x008) -#define FH_RSCSR_CHNL0_WPTR (FH_RSCSR_CHNL0_RBDCB_WPTR_REG) - - -/** - * Rx Config/Status Registers (RCSR) - * Rx Config Reg for channel 0 (only channel used) - * - * Driver must initialize FH_MEM_RCSR_CHNL0_CONFIG_REG as follows for - * normal operation (see bit fields). - * - * Clearing FH_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA. - * Driver should poll FH_MEM_RSSR_RX_STATUS_REG for - * FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing. - * - * Bit fields: - * 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame, - * '10' operate normally - * 29-24: reserved - * 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal), - * min "5" for 32 RBDs, max "12" for 4096 RBDs. - * 19-18: reserved - * 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K, - * '10' 12K, '11' 16K. - * 15-14: reserved - * 13-12: IRQ destination; '00' none, '01' host driver (normal operation) - * 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec) - * typical value 0x10 (about 1/2 msec) - * 3- 0: reserved - */ -#define FH_MEM_RCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC00) -#define FH_MEM_RCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xCC0) -#define FH_MEM_RCSR_CHNL0 (FH_MEM_RCSR_LOWER_BOUND) - -#define FH_MEM_RCSR_CHNL0_CONFIG_REG (FH_MEM_RCSR_CHNL0) - -#define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MSK (0x00000FF0) /* bits 4-11 */ -#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MSK (0x00001000) /* bits 12 */ -#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK (0x00008000) /* bit 15 */ -#define FH_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MSK (0x00030000) /* bits 16-17 */ -#define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */ -#define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31*/ - -#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS (20) -#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS (4) -#define RX_RB_TIMEOUT (0x10) - -#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000) -#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000) -#define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000) - -#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000) -#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000) -#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000) -#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000) - -#define FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY (0x00000004) -#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000) -#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000) - -#define FH_RSCSR_FRAME_SIZE_MSK (0x00003FFF) /* bits 0-13 */ - -/** - * Rx Shared Status Registers (RSSR) - * - * After stopping Rx DMA channel (writing 0 to - * FH_MEM_RCSR_CHNL0_CONFIG_REG), driver must poll - * FH_MEM_RSSR_RX_STATUS_REG until Rx channel is idle. - * - * Bit fields: - * 24: 1 = Channel 0 is idle - * - * FH_MEM_RSSR_SHARED_CTRL_REG and FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV - * contain default values that should not be altered by the driver. - */ -#define FH_MEM_RSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC40) -#define FH_MEM_RSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xD00) - -#define FH_MEM_RSSR_SHARED_CTRL_REG (FH_MEM_RSSR_LOWER_BOUND) -#define FH_MEM_RSSR_RX_STATUS_REG (FH_MEM_RSSR_LOWER_BOUND + 0x004) -#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV\ - (FH_MEM_RSSR_LOWER_BOUND + 0x008) - -#define FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000) - -#define FH_MEM_TFDIB_REG1_ADDR_BITSHIFT 28 - -/* TFDB Area - TFDs buffer table */ -#define FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK (0xFFFFFFFF) -#define FH_TFDIB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x900) -#define FH_TFDIB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x958) -#define FH_TFDIB_CTRL0_REG(_chnl) (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl)) -#define FH_TFDIB_CTRL1_REG(_chnl) (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl) + 0x4) - -/** - * Transmit DMA Channel Control/Status Registers (TCSR) - * - * 4965 has one configuration register for each of 8 Tx DMA/FIFO channels - * supported in hardware (don't confuse these with the 16 Tx queues in DRAM, - * which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes. - * - * To use a Tx DMA channel, driver must initialize its - * FH_TCSR_CHNL_TX_CONFIG_REG(chnl) with: - * - * FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | - * FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL - * - * All other bits should be 0. - * - * Bit fields: - * 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame, - * '10' operate normally - * 29- 4: Reserved, set to "0" - * 3: Enable internal DMA requests (1, normal operation), disable (0) - * 2- 0: Reserved, set to "0" - */ -#define FH_TCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xD00) -#define FH_TCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xE60) - -/* Find Control/Status reg for given Tx DMA/FIFO channel */ -#define FH49_TCSR_CHNL_NUM (7) -#define FH50_TCSR_CHNL_NUM (8) - -/* TCSR: tx_config register values */ -#define FH_TCSR_CHNL_TX_CONFIG_REG(_chnl) \ - (FH_TCSR_LOWER_BOUND + 0x20 * (_chnl)) -#define FH_TCSR_CHNL_TX_CREDIT_REG(_chnl) \ - (FH_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x4) -#define FH_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \ - (FH_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x8) - -#define FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000) -#define FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRV (0x00000001) - -#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE (0x00000000) -#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE (0x00000008) - -#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT (0x00000000) -#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD (0x00100000) -#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000) - -#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000) -#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD (0x00400000) -#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD (0x00800000) - -#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000) -#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000) -#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000) - -#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY (0x00000000) -#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT (0x00002000) -#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00000003) - -#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM (20) -#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX (12) - -/** - * Tx Shared Status Registers (TSSR) - * - * After stopping Tx DMA channel (writing 0 to - * FH_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll - * FH_TSSR_TX_STATUS_REG until selected Tx channel is idle - * (channel's buffers empty | no pending requests). - * - * Bit fields: - * 31-24: 1 = Channel buffers empty (channel 7:0) - * 23-16: 1 = No pending requests (channel 7:0) - */ -#define FH_TSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xEA0) -#define FH_TSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xEC0) - -#define FH_TSSR_TX_STATUS_REG (FH_TSSR_LOWER_BOUND + 0x010) - -/** - * Bit fields for TSSR(Tx Shared Status & Control) error status register: - * 31: Indicates an address error when accessed to internal memory - * uCode/driver must write "1" in order to clear this flag - * 30: Indicates that Host did not send the expected number of dwords to FH - * uCode/driver must write "1" in order to clear this flag - * 16-9:Each status bit is for one channel. Indicates that an (Error) ActDMA - * command was received from the scheduler while the TRB was already full - * with previous command - * uCode/driver must write "1" in order to clear this flag - * 7-0: Each status bit indicates a channel's TxCredit error. When an error - * bit is set, it indicates that the FH has received a full indication - * from the RTC TxFIFO and the current value of the TxCredit counter was - * not equal to zero. This mean that the credit mechanism was not - * synchronized to the TxFIFO status - * uCode/driver must write "1" in order to clear this flag - */ -#define FH_TSSR_TX_ERROR_REG (FH_TSSR_LOWER_BOUND + 0x018) - -#define FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) ((1 << (_chnl)) << 16) - -/* Tx service channels */ -#define FH_SRVC_CHNL (9) -#define FH_SRVC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9C8) -#define FH_SRVC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0) -#define FH_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \ - (FH_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4) - -#define FH_TX_CHICKEN_BITS_REG (FH_MEM_LOWER_BOUND + 0xE98) -/* Instruct FH to increment the retry count of a packet when - * it is brought from the memory to TX-FIFO - */ -#define FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN (0x00000002) - -#define RX_QUEUE_SIZE 256 -#define RX_QUEUE_MASK 255 -#define RX_QUEUE_SIZE_LOG 8 - -/* - * RX related structures and functions - */ -#define RX_FREE_BUFFERS 64 -#define RX_LOW_WATERMARK 8 - -/* Size of one Rx buffer in host DRAM */ -#define IWL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */ -#define IWL_RX_BUF_SIZE_4K (4 * 1024) -#define IWL_RX_BUF_SIZE_8K (8 * 1024) - -/** - * struct iwl_rb_status - reseve buffer status - * host memory mapped FH registers - * @closed_rb_num [0:11] - Indicates the index of the RB which was closed - * @closed_fr_num [0:11] - Indicates the index of the RX Frame which was closed - * @finished_rb_num [0:11] - Indicates the index of the current RB - * in which the last frame was written to - * @finished_fr_num [0:11] - Indicates the index of the RX Frame - * which was transferred - */ -struct iwl_rb_status { - __le16 closed_rb_num; - __le16 closed_fr_num; - __le16 finished_rb_num; - __le16 finished_fr_nam; - __le32 __unused; /* 3945 only */ -} __packed; - - -#define TFD_QUEUE_SIZE_MAX (256) -#define TFD_QUEUE_SIZE_BC_DUP (64) -#define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP) -#define IWL_TX_DMA_MASK DMA_BIT_MASK(36) -#define IWL_NUM_OF_TBS 20 - -static inline u8 iwl_legacy_get_dma_hi_addr(dma_addr_t addr) -{ - return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF; -} -/** - * struct iwl_tfd_tb transmit buffer descriptor within transmit frame descriptor - * - * This structure contains dma address and length of transmission address - * - * @lo: low [31:0] portion of the dma address of TX buffer - * every even is unaligned on 16 bit boundary - * @hi_n_len 0-3 [35:32] portion of dma - * 4-15 length of the tx buffer - */ -struct iwl_tfd_tb { - __le32 lo; - __le16 hi_n_len; -} __packed; - -/** - * struct iwl_tfd - * - * Transmit Frame Descriptor (TFD) - * - * @ __reserved1[3] reserved - * @ num_tbs 0-4 number of active tbs - * 5 reserved - * 6-7 padding (not used) - * @ tbs[20] transmit frame buffer descriptors - * @ __pad padding - * - * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM. - * Both driver and device share these circular buffers, each of which must be - * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes - * - * Driver must indicate the physical address of the base of each - * circular buffer via the FH_MEM_CBBC_QUEUE registers. - * - * Each TFD contains pointer/size information for up to 20 data buffers - * in host DRAM. These buffers collectively contain the (one) frame described - * by the TFD. Each buffer must be a single contiguous block of memory within - * itself, but buffers may be scattered in host DRAM. Each buffer has max size - * of (4K - 4). The concatenates all of a TFD's buffers into a single - * Tx frame, up to 8 KBytes in size. - * - * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx. - */ -struct iwl_tfd { - u8 __reserved1[3]; - u8 num_tbs; - struct iwl_tfd_tb tbs[IWL_NUM_OF_TBS]; - __le32 __pad; -} __packed; - -/* Keep Warm Size */ -#define IWL_KW_SIZE 0x1000 /* 4k */ - -#endif /* !__iwl_legacy_fh_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-hcmd.c b/drivers/net/wireless/iwlegacy/iwl-hcmd.c deleted file mode 100644 index ce1fc9feb61f..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-hcmd.c +++ /dev/null @@ -1,271 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <net/mac80211.h> - -#include "iwl-dev.h" -#include "iwl-debug.h" -#include "iwl-eeprom.h" -#include "iwl-core.h" - - -const char *iwl_legacy_get_cmd_string(u8 cmd) -{ - switch (cmd) { - IWL_CMD(REPLY_ALIVE); - IWL_CMD(REPLY_ERROR); - IWL_CMD(REPLY_RXON); - IWL_CMD(REPLY_RXON_ASSOC); - IWL_CMD(REPLY_QOS_PARAM); - IWL_CMD(REPLY_RXON_TIMING); - IWL_CMD(REPLY_ADD_STA); - IWL_CMD(REPLY_REMOVE_STA); - IWL_CMD(REPLY_WEPKEY); - IWL_CMD(REPLY_3945_RX); - IWL_CMD(REPLY_TX); - IWL_CMD(REPLY_RATE_SCALE); - IWL_CMD(REPLY_LEDS_CMD); - IWL_CMD(REPLY_TX_LINK_QUALITY_CMD); - IWL_CMD(REPLY_CHANNEL_SWITCH); - IWL_CMD(CHANNEL_SWITCH_NOTIFICATION); - IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD); - IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION); - IWL_CMD(POWER_TABLE_CMD); - IWL_CMD(PM_SLEEP_NOTIFICATION); - IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC); - IWL_CMD(REPLY_SCAN_CMD); - IWL_CMD(REPLY_SCAN_ABORT_CMD); - IWL_CMD(SCAN_START_NOTIFICATION); - IWL_CMD(SCAN_RESULTS_NOTIFICATION); - IWL_CMD(SCAN_COMPLETE_NOTIFICATION); - IWL_CMD(BEACON_NOTIFICATION); - IWL_CMD(REPLY_TX_BEACON); - IWL_CMD(REPLY_TX_PWR_TABLE_CMD); - IWL_CMD(REPLY_BT_CONFIG); - IWL_CMD(REPLY_STATISTICS_CMD); - IWL_CMD(STATISTICS_NOTIFICATION); - IWL_CMD(CARD_STATE_NOTIFICATION); - IWL_CMD(MISSED_BEACONS_NOTIFICATION); - IWL_CMD(REPLY_CT_KILL_CONFIG_CMD); - IWL_CMD(SENSITIVITY_CMD); - IWL_CMD(REPLY_PHY_CALIBRATION_CMD); - IWL_CMD(REPLY_RX_PHY_CMD); - IWL_CMD(REPLY_RX_MPDU_CMD); - IWL_CMD(REPLY_RX); - IWL_CMD(REPLY_COMPRESSED_BA); - default: - return "UNKNOWN"; - - } -} -EXPORT_SYMBOL(iwl_legacy_get_cmd_string); - -#define HOST_COMPLETE_TIMEOUT (HZ / 2) - -static void iwl_legacy_generic_cmd_callback(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct iwl_rx_packet *pkt) -{ - if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { - IWL_ERR(priv, "Bad return from %s (0x%08X)\n", - iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); - return; - } - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - switch (cmd->hdr.cmd) { - case REPLY_TX_LINK_QUALITY_CMD: - case SENSITIVITY_CMD: - IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n", - iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); - break; - default: - IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n", - iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags); - } -#endif -} - -static int -iwl_legacy_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - int ret; - - BUG_ON(!(cmd->flags & CMD_ASYNC)); - - /* An asynchronous command can not expect an SKB to be set. */ - BUG_ON(cmd->flags & CMD_WANT_SKB); - - /* Assign a generic callback if one is not provided */ - if (!cmd->callback) - cmd->callback = iwl_legacy_generic_cmd_callback; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return -EBUSY; - - ret = iwl_legacy_enqueue_hcmd(priv, cmd); - if (ret < 0) { - IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n", - iwl_legacy_get_cmd_string(cmd->id), ret); - return ret; - } - return 0; -} - -int iwl_legacy_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - int cmd_idx; - int ret; - - lockdep_assert_held(&priv->mutex); - - BUG_ON(cmd->flags & CMD_ASYNC); - - /* A synchronous command can not have a callback set. */ - BUG_ON(cmd->callback); - - IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n", - iwl_legacy_get_cmd_string(cmd->id)); - - set_bit(STATUS_HCMD_ACTIVE, &priv->status); - IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n", - iwl_legacy_get_cmd_string(cmd->id)); - - cmd_idx = iwl_legacy_enqueue_hcmd(priv, cmd); - if (cmd_idx < 0) { - ret = cmd_idx; - IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n", - iwl_legacy_get_cmd_string(cmd->id), ret); - goto out; - } - - ret = wait_event_timeout(priv->wait_command_queue, - !test_bit(STATUS_HCMD_ACTIVE, &priv->status), - HOST_COMPLETE_TIMEOUT); - if (!ret) { - if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) { - IWL_ERR(priv, - "Error sending %s: time out after %dms.\n", - iwl_legacy_get_cmd_string(cmd->id), - jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); - - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - IWL_DEBUG_INFO(priv, - "Clearing HCMD_ACTIVE for command %s\n", - iwl_legacy_get_cmd_string(cmd->id)); - ret = -ETIMEDOUT; - goto cancel; - } - } - - if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { - IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n", - iwl_legacy_get_cmd_string(cmd->id)); - ret = -ECANCELED; - goto fail; - } - if (test_bit(STATUS_FW_ERROR, &priv->status)) { - IWL_ERR(priv, "Command %s failed: FW Error\n", - iwl_legacy_get_cmd_string(cmd->id)); - ret = -EIO; - goto fail; - } - if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) { - IWL_ERR(priv, "Error: Response NULL in '%s'\n", - iwl_legacy_get_cmd_string(cmd->id)); - ret = -EIO; - goto cancel; - } - - ret = 0; - goto out; - -cancel: - if (cmd->flags & CMD_WANT_SKB) { - /* - * Cancel the CMD_WANT_SKB flag for the cmd in the - * TX cmd queue. Otherwise in case the cmd comes - * in later, it will possibly set an invalid - * address (cmd->meta.source). - */ - priv->txq[priv->cmd_queue].meta[cmd_idx].flags &= - ~CMD_WANT_SKB; - } -fail: - if (cmd->reply_page) { - iwl_legacy_free_pages(priv, cmd->reply_page); - cmd->reply_page = 0; - } -out: - return ret; -} -EXPORT_SYMBOL(iwl_legacy_send_cmd_sync); - -int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - if (cmd->flags & CMD_ASYNC) - return iwl_legacy_send_cmd_async(priv, cmd); - - return iwl_legacy_send_cmd_sync(priv, cmd); -} -EXPORT_SYMBOL(iwl_legacy_send_cmd); - -int -iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data) -{ - struct iwl_host_cmd cmd = { - .id = id, - .len = len, - .data = data, - }; - - return iwl_legacy_send_cmd_sync(priv, &cmd); -} -EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu); - -int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv, - u8 id, u16 len, const void *data, - void (*callback)(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct iwl_rx_packet *pkt)) -{ - struct iwl_host_cmd cmd = { - .id = id, - .len = len, - .data = data, - }; - - cmd.flags |= CMD_ASYNC; - cmd.callback = callback; - - return iwl_legacy_send_cmd_async(priv, &cmd); -} -EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu_async); diff --git a/drivers/net/wireless/iwlegacy/iwl-helpers.h b/drivers/net/wireless/iwlegacy/iwl-helpers.h deleted file mode 100644 index 5cf23eaecbbb..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-helpers.h +++ /dev/null @@ -1,196 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __iwl_legacy_helpers_h__ -#define __iwl_legacy_helpers_h__ - -#include <linux/ctype.h> -#include <net/mac80211.h> - -#include "iwl-io.h" - -#define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo)))) - - -static inline struct ieee80211_conf *iwl_legacy_ieee80211_get_hw_conf( - struct ieee80211_hw *hw) -{ - return &hw->conf; -} - -/** - * iwl_legacy_queue_inc_wrap - increment queue index, wrap back to beginning - * @index -- current index - * @n_bd -- total number of entries in queue (must be power of 2) - */ -static inline int iwl_legacy_queue_inc_wrap(int index, int n_bd) -{ - return ++index & (n_bd - 1); -} - -/** - * iwl_legacy_queue_dec_wrap - decrement queue index, wrap back to end - * @index -- current index - * @n_bd -- total number of entries in queue (must be power of 2) - */ -static inline int iwl_legacy_queue_dec_wrap(int index, int n_bd) -{ - return --index & (n_bd - 1); -} - -/* TODO: Move fw_desc functions to iwl-pci.ko */ -static inline void iwl_legacy_free_fw_desc(struct pci_dev *pci_dev, - struct fw_desc *desc) -{ - if (desc->v_addr) - dma_free_coherent(&pci_dev->dev, desc->len, - desc->v_addr, desc->p_addr); - desc->v_addr = NULL; - desc->len = 0; -} - -static inline int iwl_legacy_alloc_fw_desc(struct pci_dev *pci_dev, - struct fw_desc *desc) -{ - if (!desc->len) { - desc->v_addr = NULL; - return -EINVAL; - } - - desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len, - &desc->p_addr, GFP_KERNEL); - return (desc->v_addr != NULL) ? 0 : -ENOMEM; -} - -/* - * we have 8 bits used like this: - * - * 7 6 5 4 3 2 1 0 - * | | | | | | | | - * | | | | | | +-+-------- AC queue (0-3) - * | | | | | | - * | +-+-+-+-+------------ HW queue ID - * | - * +---------------------- unused - */ -static inline void -iwl_legacy_set_swq_id(struct iwl_tx_queue *txq, u8 ac, u8 hwq) -{ - BUG_ON(ac > 3); /* only have 2 bits */ - BUG_ON(hwq > 31); /* only use 5 bits */ - - txq->swq_id = (hwq << 2) | ac; -} - -static inline void iwl_legacy_wake_queue(struct iwl_priv *priv, - struct iwl_tx_queue *txq) -{ - u8 queue = txq->swq_id; - u8 ac = queue & 3; - u8 hwq = (queue >> 2) & 0x1f; - - if (test_and_clear_bit(hwq, priv->queue_stopped)) - if (atomic_dec_return(&priv->queue_stop_count[ac]) <= 0) - ieee80211_wake_queue(priv->hw, ac); -} - -static inline void iwl_legacy_stop_queue(struct iwl_priv *priv, - struct iwl_tx_queue *txq) -{ - u8 queue = txq->swq_id; - u8 ac = queue & 3; - u8 hwq = (queue >> 2) & 0x1f; - - if (!test_and_set_bit(hwq, priv->queue_stopped)) - if (atomic_inc_return(&priv->queue_stop_count[ac]) > 0) - ieee80211_stop_queue(priv->hw, ac); -} - -#ifdef ieee80211_stop_queue -#undef ieee80211_stop_queue -#endif - -#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue - -#ifdef ieee80211_wake_queue -#undef ieee80211_wake_queue -#endif - -#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue - -static inline void iwl_legacy_disable_interrupts(struct iwl_priv *priv) -{ - clear_bit(STATUS_INT_ENABLED, &priv->status); - - /* disable interrupts from uCode/NIC to host */ - iwl_write32(priv, CSR_INT_MASK, 0x00000000); - - /* acknowledge/clear/reset any interrupts still pending - * from uCode or flow handler (Rx/Tx DMA) */ - iwl_write32(priv, CSR_INT, 0xffffffff); - iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); - IWL_DEBUG_ISR(priv, "Disabled interrupts\n"); -} - -static inline void iwl_legacy_enable_rfkill_int(struct iwl_priv *priv) -{ - IWL_DEBUG_ISR(priv, "Enabling rfkill interrupt\n"); - iwl_write32(priv, CSR_INT_MASK, CSR_INT_BIT_RF_KILL); -} - -static inline void iwl_legacy_enable_interrupts(struct iwl_priv *priv) -{ - IWL_DEBUG_ISR(priv, "Enabling interrupts\n"); - set_bit(STATUS_INT_ENABLED, &priv->status); - iwl_write32(priv, CSR_INT_MASK, priv->inta_mask); -} - -/** - * iwl_legacy_beacon_time_mask_low - mask of lower 32 bit of beacon time - * @priv -- pointer to iwl_priv data structure - * @tsf_bits -- number of bits need to shift for masking) - */ -static inline u32 iwl_legacy_beacon_time_mask_low(struct iwl_priv *priv, - u16 tsf_bits) -{ - return (1 << tsf_bits) - 1; -} - -/** - * iwl_legacy_beacon_time_mask_high - mask of higher 32 bit of beacon time - * @priv -- pointer to iwl_priv data structure - * @tsf_bits -- number of bits need to shift for masking) - */ -static inline u32 iwl_legacy_beacon_time_mask_high(struct iwl_priv *priv, - u16 tsf_bits) -{ - return ((1 << (32 - tsf_bits)) - 1) << tsf_bits; -} - -#endif /* __iwl_legacy_helpers_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-io.h b/drivers/net/wireless/iwlegacy/iwl-io.h deleted file mode 100644 index 5cc5d342914f..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-io.h +++ /dev/null @@ -1,545 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __iwl_legacy_io_h__ -#define __iwl_legacy_io_h__ - -#include <linux/io.h> - -#include "iwl-dev.h" -#include "iwl-debug.h" -#include "iwl-devtrace.h" - -/* - * IO, register, and NIC memory access functions - * - * NOTE on naming convention and macro usage for these - * - * A single _ prefix before a an access function means that no state - * check or debug information is printed when that function is called. - * - * A double __ prefix before an access function means that state is checked - * and the current line number and caller function name are printed in addition - * to any other debug output. - * - * The non-prefixed name is the #define that maps the caller into a - * #define that provides the caller's name and __LINE__ to the double - * prefix version. - * - * If you wish to call the function without any debug or state checking, - * you should use the single _ prefix version (as is used by dependent IO - * routines, for example _iwl_legacy_read_direct32 calls the non-check version of - * _iwl_legacy_read32.) - * - * These declarations are *extremely* useful in quickly isolating code deltas - * which result in misconfiguration of the hardware I/O. In combination with - * git-bisect and the IO debug level you can quickly determine the specific - * commit which breaks the IO sequence to the hardware. - * - */ - -static inline void _iwl_legacy_write8(struct iwl_priv *priv, u32 ofs, u8 val) -{ - trace_iwlwifi_legacy_dev_iowrite8(priv, ofs, val); - iowrite8(val, priv->hw_base + ofs); -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline void -__iwl_legacy_write8(const char *f, u32 l, struct iwl_priv *priv, - u32 ofs, u8 val) -{ - IWL_DEBUG_IO(priv, "write8(0x%08X, 0x%02X) - %s %d\n", ofs, val, f, l); - _iwl_legacy_write8(priv, ofs, val); -} -#define iwl_write8(priv, ofs, val) \ - __iwl_legacy_write8(__FILE__, __LINE__, priv, ofs, val) -#else -#define iwl_write8(priv, ofs, val) _iwl_legacy_write8(priv, ofs, val) -#endif - - -static inline void _iwl_legacy_write32(struct iwl_priv *priv, u32 ofs, u32 val) -{ - trace_iwlwifi_legacy_dev_iowrite32(priv, ofs, val); - iowrite32(val, priv->hw_base + ofs); -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline void -__iwl_legacy_write32(const char *f, u32 l, struct iwl_priv *priv, - u32 ofs, u32 val) -{ - IWL_DEBUG_IO(priv, "write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l); - _iwl_legacy_write32(priv, ofs, val); -} -#define iwl_write32(priv, ofs, val) \ - __iwl_legacy_write32(__FILE__, __LINE__, priv, ofs, val) -#else -#define iwl_write32(priv, ofs, val) _iwl_legacy_write32(priv, ofs, val) -#endif - -static inline u32 _iwl_legacy_read32(struct iwl_priv *priv, u32 ofs) -{ - u32 val = ioread32(priv->hw_base + ofs); - trace_iwlwifi_legacy_dev_ioread32(priv, ofs, val); - return val; -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline u32 -__iwl_legacy_read32(char *f, u32 l, struct iwl_priv *priv, u32 ofs) -{ - IWL_DEBUG_IO(priv, "read_direct32(0x%08X) - %s %d\n", ofs, f, l); - return _iwl_legacy_read32(priv, ofs); -} -#define iwl_read32(priv, ofs) __iwl_legacy_read32(__FILE__, __LINE__, priv, ofs) -#else -#define iwl_read32(p, o) _iwl_legacy_read32(p, o) -#endif - -#define IWL_POLL_INTERVAL 10 /* microseconds */ -static inline int -_iwl_legacy_poll_bit(struct iwl_priv *priv, u32 addr, - u32 bits, u32 mask, int timeout) -{ - int t = 0; - - do { - if ((_iwl_legacy_read32(priv, addr) & mask) == (bits & mask)) - return t; - udelay(IWL_POLL_INTERVAL); - t += IWL_POLL_INTERVAL; - } while (t < timeout); - - return -ETIMEDOUT; -} -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline int __iwl_legacy_poll_bit(const char *f, u32 l, - struct iwl_priv *priv, u32 addr, - u32 bits, u32 mask, int timeout) -{ - int ret = _iwl_legacy_poll_bit(priv, addr, bits, mask, timeout); - IWL_DEBUG_IO(priv, "poll_bit(0x%08X, 0x%08X, 0x%08X) - %s- %s %d\n", - addr, bits, mask, - unlikely(ret == -ETIMEDOUT) ? "timeout" : "", f, l); - return ret; -} -#define iwl_poll_bit(priv, addr, bits, mask, timeout) \ - __iwl_legacy_poll_bit(__FILE__, __LINE__, priv, addr, \ - bits, mask, timeout) -#else -#define iwl_poll_bit(p, a, b, m, t) _iwl_legacy_poll_bit(p, a, b, m, t) -#endif - -static inline void _iwl_legacy_set_bit(struct iwl_priv *priv, u32 reg, u32 mask) -{ - _iwl_legacy_write32(priv, reg, _iwl_legacy_read32(priv, reg) | mask); -} -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline void __iwl_legacy_set_bit(const char *f, u32 l, - struct iwl_priv *priv, u32 reg, u32 mask) -{ - u32 val = _iwl_legacy_read32(priv, reg) | mask; - IWL_DEBUG_IO(priv, "set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, - mask, val); - _iwl_legacy_write32(priv, reg, val); -} -static inline void iwl_legacy_set_bit(struct iwl_priv *p, u32 r, u32 m) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&p->reg_lock, reg_flags); - __iwl_legacy_set_bit(__FILE__, __LINE__, p, r, m); - spin_unlock_irqrestore(&p->reg_lock, reg_flags); -} -#else -static inline void iwl_legacy_set_bit(struct iwl_priv *p, u32 r, u32 m) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&p->reg_lock, reg_flags); - _iwl_legacy_set_bit(p, r, m); - spin_unlock_irqrestore(&p->reg_lock, reg_flags); -} -#endif - -static inline void -_iwl_legacy_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask) -{ - _iwl_legacy_write32(priv, reg, _iwl_legacy_read32(priv, reg) & ~mask); -} -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline void -__iwl_legacy_clear_bit(const char *f, u32 l, - struct iwl_priv *priv, u32 reg, u32 mask) -{ - u32 val = _iwl_legacy_read32(priv, reg) & ~mask; - IWL_DEBUG_IO(priv, "clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val); - _iwl_legacy_write32(priv, reg, val); -} -static inline void iwl_legacy_clear_bit(struct iwl_priv *p, u32 r, u32 m) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&p->reg_lock, reg_flags); - __iwl_legacy_clear_bit(__FILE__, __LINE__, p, r, m); - spin_unlock_irqrestore(&p->reg_lock, reg_flags); -} -#else -static inline void iwl_legacy_clear_bit(struct iwl_priv *p, u32 r, u32 m) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&p->reg_lock, reg_flags); - _iwl_legacy_clear_bit(p, r, m); - spin_unlock_irqrestore(&p->reg_lock, reg_flags); -} -#endif - -static inline int _iwl_legacy_grab_nic_access(struct iwl_priv *priv) -{ - int ret; - u32 val; - - /* this bit wakes up the NIC */ - _iwl_legacy_set_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - - /* - * These bits say the device is running, and should keep running for - * at least a short while (at least as long as MAC_ACCESS_REQ stays 1), - * but they do not indicate that embedded SRAM is restored yet; - * 3945 and 4965 have volatile SRAM, and must save/restore contents - * to/from host DRAM when sleeping/waking for power-saving. - * Each direction takes approximately 1/4 millisecond; with this - * overhead, it's a good idea to grab and hold MAC_ACCESS_REQUEST if a - * series of register accesses are expected (e.g. reading Event Log), - * to keep device from sleeping. - * - * CSR_UCODE_DRV_GP1 register bit MAC_SLEEP == 0 indicates that - * SRAM is okay/restored. We don't check that here because this call - * is just for hardware register access; but GP1 MAC_SLEEP check is a - * good idea before accessing 3945/4965 SRAM (e.g. reading Event Log). - * - */ - ret = _iwl_legacy_poll_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN, - (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | - CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000); - if (ret < 0) { - val = _iwl_legacy_read32(priv, CSR_GP_CNTRL); - IWL_ERR(priv, - "MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val); - _iwl_legacy_write32(priv, CSR_RESET, - CSR_RESET_REG_FLAG_FORCE_NMI); - return -EIO; - } - - return 0; -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline int __iwl_legacy_grab_nic_access(const char *f, u32 l, - struct iwl_priv *priv) -{ - IWL_DEBUG_IO(priv, "grabbing nic access - %s %d\n", f, l); - return _iwl_legacy_grab_nic_access(priv); -} -#define iwl_grab_nic_access(priv) \ - __iwl_legacy_grab_nic_access(__FILE__, __LINE__, priv) -#else -#define iwl_grab_nic_access(priv) \ - _iwl_legacy_grab_nic_access(priv) -#endif - -static inline void _iwl_legacy_release_nic_access(struct iwl_priv *priv) -{ - _iwl_legacy_clear_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); -} -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline void __iwl_legacy_release_nic_access(const char *f, u32 l, - struct iwl_priv *priv) -{ - - IWL_DEBUG_IO(priv, "releasing nic access - %s %d\n", f, l); - _iwl_legacy_release_nic_access(priv); -} -#define iwl_release_nic_access(priv) \ - __iwl_legacy_release_nic_access(__FILE__, __LINE__, priv) -#else -#define iwl_release_nic_access(priv) \ - _iwl_legacy_release_nic_access(priv) -#endif - -static inline u32 _iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg) -{ - return _iwl_legacy_read32(priv, reg); -} -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline u32 __iwl_legacy_read_direct32(const char *f, u32 l, - struct iwl_priv *priv, u32 reg) -{ - u32 value = _iwl_legacy_read_direct32(priv, reg); - IWL_DEBUG_IO(priv, - "read_direct32(0x%4X) = 0x%08x - %s %d\n", reg, value, - f, l); - return value; -} -static inline u32 iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg) -{ - u32 value; - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - value = __iwl_legacy_read_direct32(__FILE__, __LINE__, priv, reg); - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); - return value; -} - -#else -static inline u32 iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg) -{ - u32 value; - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - value = _iwl_legacy_read_direct32(priv, reg); - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); - return value; - -} -#endif - -static inline void _iwl_legacy_write_direct32(struct iwl_priv *priv, - u32 reg, u32 value) -{ - _iwl_legacy_write32(priv, reg, value); -} -static inline void -iwl_legacy_write_direct32(struct iwl_priv *priv, u32 reg, u32 value) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - if (!iwl_grab_nic_access(priv)) { - _iwl_legacy_write_direct32(priv, reg, value); - iwl_release_nic_access(priv); - } - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); -} - -static inline void iwl_legacy_write_reg_buf(struct iwl_priv *priv, - u32 reg, u32 len, u32 *values) -{ - u32 count = sizeof(u32); - - if ((priv != NULL) && (values != NULL)) { - for (; 0 < len; len -= count, reg += count, values++) - iwl_legacy_write_direct32(priv, reg, *values); - } -} - -static inline int _iwl_legacy_poll_direct_bit(struct iwl_priv *priv, u32 addr, - u32 mask, int timeout) -{ - int t = 0; - - do { - if ((iwl_legacy_read_direct32(priv, addr) & mask) == mask) - return t; - udelay(IWL_POLL_INTERVAL); - t += IWL_POLL_INTERVAL; - } while (t < timeout); - - return -ETIMEDOUT; -} - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static inline int __iwl_legacy_poll_direct_bit(const char *f, u32 l, - struct iwl_priv *priv, - u32 addr, u32 mask, int timeout) -{ - int ret = _iwl_legacy_poll_direct_bit(priv, addr, mask, timeout); - - if (unlikely(ret == -ETIMEDOUT)) - IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) - " - "timedout - %s %d\n", addr, mask, f, l); - else - IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) = 0x%08X " - "- %s %d\n", addr, mask, ret, f, l); - return ret; -} -#define iwl_poll_direct_bit(priv, addr, mask, timeout) \ -__iwl_legacy_poll_direct_bit(__FILE__, __LINE__, priv, addr, mask, timeout) -#else -#define iwl_poll_direct_bit _iwl_legacy_poll_direct_bit -#endif - -static inline u32 _iwl_legacy_read_prph(struct iwl_priv *priv, u32 reg) -{ - _iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24)); - rmb(); - return _iwl_legacy_read_direct32(priv, HBUS_TARG_PRPH_RDAT); -} -static inline u32 iwl_legacy_read_prph(struct iwl_priv *priv, u32 reg) -{ - unsigned long reg_flags; - u32 val; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - val = _iwl_legacy_read_prph(priv, reg); - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); - return val; -} - -static inline void _iwl_legacy_write_prph(struct iwl_priv *priv, - u32 addr, u32 val) -{ - _iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_WADDR, - ((addr & 0x0000FFFF) | (3 << 24))); - wmb(); - _iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val); -} - -static inline void -iwl_legacy_write_prph(struct iwl_priv *priv, u32 addr, u32 val) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - if (!iwl_grab_nic_access(priv)) { - _iwl_legacy_write_prph(priv, addr, val); - iwl_release_nic_access(priv); - } - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); -} - -#define _iwl_legacy_set_bits_prph(priv, reg, mask) \ -_iwl_legacy_write_prph(priv, reg, (_iwl_legacy_read_prph(priv, reg) | mask)) - -static inline void -iwl_legacy_set_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - _iwl_legacy_set_bits_prph(priv, reg, mask); - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); -} - -#define _iwl_legacy_set_bits_mask_prph(priv, reg, bits, mask) \ -_iwl_legacy_write_prph(priv, reg, \ - ((_iwl_legacy_read_prph(priv, reg) & mask) | bits)) - -static inline void iwl_legacy_set_bits_mask_prph(struct iwl_priv *priv, u32 reg, - u32 bits, u32 mask) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - _iwl_legacy_set_bits_mask_prph(priv, reg, bits, mask); - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); -} - -static inline void iwl_legacy_clear_bits_prph(struct iwl_priv - *priv, u32 reg, u32 mask) -{ - unsigned long reg_flags; - u32 val; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - val = _iwl_legacy_read_prph(priv, reg); - _iwl_legacy_write_prph(priv, reg, (val & ~mask)); - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); -} - -static inline u32 iwl_legacy_read_targ_mem(struct iwl_priv *priv, u32 addr) -{ - unsigned long reg_flags; - u32 value; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - - _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr); - rmb(); - value = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT); - - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); - return value; -} - -static inline void -iwl_legacy_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - if (!iwl_grab_nic_access(priv)) { - _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr); - wmb(); - _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WDAT, val); - iwl_release_nic_access(priv); - } - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); -} - -static inline void -iwl_legacy_write_targ_mem_buf(struct iwl_priv *priv, u32 addr, - u32 len, u32 *values) -{ - unsigned long reg_flags; - - spin_lock_irqsave(&priv->reg_lock, reg_flags); - if (!iwl_grab_nic_access(priv)) { - _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr); - wmb(); - for (; 0 < len; len -= sizeof(u32), values++) - _iwl_legacy_write_direct32(priv, - HBUS_TARG_MEM_WDAT, *values); - - iwl_release_nic_access(priv); - } - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); -} -#endif diff --git a/drivers/net/wireless/iwlegacy/iwl-led.c b/drivers/net/wireless/iwlegacy/iwl-led.c deleted file mode 100644 index dc568a474c5d..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-led.c +++ /dev/null @@ -1,205 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <net/mac80211.h> -#include <linux/etherdevice.h> -#include <asm/unaligned.h> - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" - -/* default: IWL_LED_BLINK(0) using blinking index table */ -static int led_mode; -module_param(led_mode, int, S_IRUGO); -MODULE_PARM_DESC(led_mode, "0=system default, " - "1=On(RF On)/Off(RF Off), 2=blinking"); - -/* Throughput OFF time(ms) ON time (ms) - * >300 25 25 - * >200 to 300 40 40 - * >100 to 200 55 55 - * >70 to 100 65 65 - * >50 to 70 75 75 - * >20 to 50 85 85 - * >10 to 20 95 95 - * >5 to 10 110 110 - * >1 to 5 130 130 - * >0 to 1 167 167 - * <=0 SOLID ON - */ -static const struct ieee80211_tpt_blink iwl_blink[] = { - { .throughput = 0, .blink_time = 334 }, - { .throughput = 1 * 1024 - 1, .blink_time = 260 }, - { .throughput = 5 * 1024 - 1, .blink_time = 220 }, - { .throughput = 10 * 1024 - 1, .blink_time = 190 }, - { .throughput = 20 * 1024 - 1, .blink_time = 170 }, - { .throughput = 50 * 1024 - 1, .blink_time = 150 }, - { .throughput = 70 * 1024 - 1, .blink_time = 130 }, - { .throughput = 100 * 1024 - 1, .blink_time = 110 }, - { .throughput = 200 * 1024 - 1, .blink_time = 80 }, - { .throughput = 300 * 1024 - 1, .blink_time = 50 }, -}; - -/* - * Adjust led blink rate to compensate on a MAC Clock difference on every HW - * Led blink rate analysis showed an average deviation of 0% on 3945, - * 5% on 4965 HW. - * Need to compensate on the led on/off time per HW according to the deviation - * to achieve the desired led frequency - * The calculation is: (100-averageDeviation)/100 * blinkTime - * For code efficiency the calculation will be: - * compensation = (100 - averageDeviation) * 64 / 100 - * NewBlinkTime = (compensation * BlinkTime) / 64 - */ -static inline u8 iwl_legacy_blink_compensation(struct iwl_priv *priv, - u8 time, u16 compensation) -{ - if (!compensation) { - IWL_ERR(priv, "undefined blink compensation: " - "use pre-defined blinking time\n"); - return time; - } - - return (u8)((time * compensation) >> 6); -} - -/* Set led pattern command */ -static int iwl_legacy_led_cmd(struct iwl_priv *priv, - unsigned long on, - unsigned long off) -{ - struct iwl_led_cmd led_cmd = { - .id = IWL_LED_LINK, - .interval = IWL_DEF_LED_INTRVL - }; - int ret; - - if (!test_bit(STATUS_READY, &priv->status)) - return -EBUSY; - - if (priv->blink_on == on && priv->blink_off == off) - return 0; - - if (off == 0) { - /* led is SOLID_ON */ - on = IWL_LED_SOLID; - } - - IWL_DEBUG_LED(priv, "Led blink time compensation=%u\n", - priv->cfg->base_params->led_compensation); - led_cmd.on = iwl_legacy_blink_compensation(priv, on, - priv->cfg->base_params->led_compensation); - led_cmd.off = iwl_legacy_blink_compensation(priv, off, - priv->cfg->base_params->led_compensation); - - ret = priv->cfg->ops->led->cmd(priv, &led_cmd); - if (!ret) { - priv->blink_on = on; - priv->blink_off = off; - } - return ret; -} - -static void iwl_legacy_led_brightness_set(struct led_classdev *led_cdev, - enum led_brightness brightness) -{ - struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led); - unsigned long on = 0; - - if (brightness > 0) - on = IWL_LED_SOLID; - - iwl_legacy_led_cmd(priv, on, 0); -} - -static int iwl_legacy_led_blink_set(struct led_classdev *led_cdev, - unsigned long *delay_on, - unsigned long *delay_off) -{ - struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led); - - return iwl_legacy_led_cmd(priv, *delay_on, *delay_off); -} - -void iwl_legacy_leds_init(struct iwl_priv *priv) -{ - int mode = led_mode; - int ret; - - if (mode == IWL_LED_DEFAULT) - mode = priv->cfg->led_mode; - - priv->led.name = kasprintf(GFP_KERNEL, "%s-led", - wiphy_name(priv->hw->wiphy)); - priv->led.brightness_set = iwl_legacy_led_brightness_set; - priv->led.blink_set = iwl_legacy_led_blink_set; - priv->led.max_brightness = 1; - - switch (mode) { - case IWL_LED_DEFAULT: - WARN_ON(1); - break; - case IWL_LED_BLINK: - priv->led.default_trigger = - ieee80211_create_tpt_led_trigger(priv->hw, - IEEE80211_TPT_LEDTRIG_FL_CONNECTED, - iwl_blink, ARRAY_SIZE(iwl_blink)); - break; - case IWL_LED_RF_STATE: - priv->led.default_trigger = - ieee80211_get_radio_led_name(priv->hw); - break; - } - - ret = led_classdev_register(&priv->pci_dev->dev, &priv->led); - if (ret) { - kfree(priv->led.name); - return; - } - - priv->led_registered = true; -} -EXPORT_SYMBOL(iwl_legacy_leds_init); - -void iwl_legacy_leds_exit(struct iwl_priv *priv) -{ - if (!priv->led_registered) - return; - - led_classdev_unregister(&priv->led); - kfree(priv->led.name); -} -EXPORT_SYMBOL(iwl_legacy_leds_exit); diff --git a/drivers/net/wireless/iwlegacy/iwl-led.h b/drivers/net/wireless/iwlegacy/iwl-led.h deleted file mode 100644 index f0791f70f79d..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-led.h +++ /dev/null @@ -1,56 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __iwl_legacy_leds_h__ -#define __iwl_legacy_leds_h__ - - -struct iwl_priv; - -#define IWL_LED_SOLID 11 -#define IWL_DEF_LED_INTRVL cpu_to_le32(1000) - -#define IWL_LED_ACTIVITY (0<<1) -#define IWL_LED_LINK (1<<1) - -/* - * LED mode - * IWL_LED_DEFAULT: use device default - * IWL_LED_RF_STATE: turn LED on/off based on RF state - * LED ON = RF ON - * LED OFF = RF OFF - * IWL_LED_BLINK: adjust led blink rate based on blink table - */ -enum iwl_led_mode { - IWL_LED_DEFAULT, - IWL_LED_RF_STATE, - IWL_LED_BLINK, -}; - -void iwl_legacy_leds_init(struct iwl_priv *priv); -void iwl_legacy_leds_exit(struct iwl_priv *priv); - -#endif /* __iwl_legacy_leds_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-legacy-rs.h b/drivers/net/wireless/iwlegacy/iwl-legacy-rs.h deleted file mode 100644 index 38647e481eb0..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-legacy-rs.h +++ /dev/null @@ -1,456 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __iwl_legacy_rs_h__ -#define __iwl_legacy_rs_h__ - -struct iwl_rate_info { - u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ - u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ - u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ - u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */ - u8 prev_ieee; /* previous rate in IEEE speeds */ - u8 next_ieee; /* next rate in IEEE speeds */ - u8 prev_rs; /* previous rate used in rs algo */ - u8 next_rs; /* next rate used in rs algo */ - u8 prev_rs_tgg; /* previous rate used in TGG rs algo */ - u8 next_rs_tgg; /* next rate used in TGG rs algo */ -}; - -struct iwl3945_rate_info { - u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ - u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */ - u8 prev_ieee; /* previous rate in IEEE speeds */ - u8 next_ieee; /* next rate in IEEE speeds */ - u8 prev_rs; /* previous rate used in rs algo */ - u8 next_rs; /* next rate used in rs algo */ - u8 prev_rs_tgg; /* previous rate used in TGG rs algo */ - u8 next_rs_tgg; /* next rate used in TGG rs algo */ - u8 table_rs_index; /* index in rate scale table cmd */ - u8 prev_table_rs; /* prev in rate table cmd */ -}; - - -/* - * These serve as indexes into - * struct iwl_rate_info iwlegacy_rates[IWL_RATE_COUNT]; - */ -enum { - IWL_RATE_1M_INDEX = 0, - IWL_RATE_2M_INDEX, - IWL_RATE_5M_INDEX, - IWL_RATE_11M_INDEX, - IWL_RATE_6M_INDEX, - IWL_RATE_9M_INDEX, - IWL_RATE_12M_INDEX, - IWL_RATE_18M_INDEX, - IWL_RATE_24M_INDEX, - IWL_RATE_36M_INDEX, - IWL_RATE_48M_INDEX, - IWL_RATE_54M_INDEX, - IWL_RATE_60M_INDEX, - IWL_RATE_COUNT, - IWL_RATE_COUNT_LEGACY = IWL_RATE_COUNT - 1, /* Excluding 60M */ - IWL_RATE_COUNT_3945 = IWL_RATE_COUNT - 1, - IWL_RATE_INVM_INDEX = IWL_RATE_COUNT, - IWL_RATE_INVALID = IWL_RATE_COUNT, -}; - -enum { - IWL_RATE_6M_INDEX_TABLE = 0, - IWL_RATE_9M_INDEX_TABLE, - IWL_RATE_12M_INDEX_TABLE, - IWL_RATE_18M_INDEX_TABLE, - IWL_RATE_24M_INDEX_TABLE, - IWL_RATE_36M_INDEX_TABLE, - IWL_RATE_48M_INDEX_TABLE, - IWL_RATE_54M_INDEX_TABLE, - IWL_RATE_1M_INDEX_TABLE, - IWL_RATE_2M_INDEX_TABLE, - IWL_RATE_5M_INDEX_TABLE, - IWL_RATE_11M_INDEX_TABLE, - IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX - 1, -}; - -enum { - IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX, - IWL39_LAST_OFDM_RATE = IWL_RATE_54M_INDEX, - IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX, - IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX, - IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX, -}; - -/* #define vs. enum to keep from defaulting to 'large integer' */ -#define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX) -#define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX) -#define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX) -#define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX) -#define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX) -#define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX) -#define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX) -#define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX) -#define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX) -#define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX) -#define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX) -#define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX) -#define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX) - -/* uCode API values for legacy bit rates, both OFDM and CCK */ -enum { - IWL_RATE_6M_PLCP = 13, - IWL_RATE_9M_PLCP = 15, - IWL_RATE_12M_PLCP = 5, - IWL_RATE_18M_PLCP = 7, - IWL_RATE_24M_PLCP = 9, - IWL_RATE_36M_PLCP = 11, - IWL_RATE_48M_PLCP = 1, - IWL_RATE_54M_PLCP = 3, - IWL_RATE_60M_PLCP = 3,/*FIXME:RS:should be removed*/ - IWL_RATE_1M_PLCP = 10, - IWL_RATE_2M_PLCP = 20, - IWL_RATE_5M_PLCP = 55, - IWL_RATE_11M_PLCP = 110, - /*FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,*/ -}; - -/* uCode API values for OFDM high-throughput (HT) bit rates */ -enum { - IWL_RATE_SISO_6M_PLCP = 0, - IWL_RATE_SISO_12M_PLCP = 1, - IWL_RATE_SISO_18M_PLCP = 2, - IWL_RATE_SISO_24M_PLCP = 3, - IWL_RATE_SISO_36M_PLCP = 4, - IWL_RATE_SISO_48M_PLCP = 5, - IWL_RATE_SISO_54M_PLCP = 6, - IWL_RATE_SISO_60M_PLCP = 7, - IWL_RATE_MIMO2_6M_PLCP = 0x8, - IWL_RATE_MIMO2_12M_PLCP = 0x9, - IWL_RATE_MIMO2_18M_PLCP = 0xa, - IWL_RATE_MIMO2_24M_PLCP = 0xb, - IWL_RATE_MIMO2_36M_PLCP = 0xc, - IWL_RATE_MIMO2_48M_PLCP = 0xd, - IWL_RATE_MIMO2_54M_PLCP = 0xe, - IWL_RATE_MIMO2_60M_PLCP = 0xf, - IWL_RATE_SISO_INVM_PLCP, - IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, -}; - -/* MAC header values for bit rates */ -enum { - IWL_RATE_6M_IEEE = 12, - IWL_RATE_9M_IEEE = 18, - IWL_RATE_12M_IEEE = 24, - IWL_RATE_18M_IEEE = 36, - IWL_RATE_24M_IEEE = 48, - IWL_RATE_36M_IEEE = 72, - IWL_RATE_48M_IEEE = 96, - IWL_RATE_54M_IEEE = 108, - IWL_RATE_60M_IEEE = 120, - IWL_RATE_1M_IEEE = 2, - IWL_RATE_2M_IEEE = 4, - IWL_RATE_5M_IEEE = 11, - IWL_RATE_11M_IEEE = 22, -}; - -#define IWL_CCK_BASIC_RATES_MASK \ - (IWL_RATE_1M_MASK | \ - IWL_RATE_2M_MASK) - -#define IWL_CCK_RATES_MASK \ - (IWL_CCK_BASIC_RATES_MASK | \ - IWL_RATE_5M_MASK | \ - IWL_RATE_11M_MASK) - -#define IWL_OFDM_BASIC_RATES_MASK \ - (IWL_RATE_6M_MASK | \ - IWL_RATE_12M_MASK | \ - IWL_RATE_24M_MASK) - -#define IWL_OFDM_RATES_MASK \ - (IWL_OFDM_BASIC_RATES_MASK | \ - IWL_RATE_9M_MASK | \ - IWL_RATE_18M_MASK | \ - IWL_RATE_36M_MASK | \ - IWL_RATE_48M_MASK | \ - IWL_RATE_54M_MASK) - -#define IWL_BASIC_RATES_MASK \ - (IWL_OFDM_BASIC_RATES_MASK | \ - IWL_CCK_BASIC_RATES_MASK) - -#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1) -#define IWL_RATES_MASK_3945 ((1 << IWL_RATE_COUNT_3945) - 1) - -#define IWL_INVALID_VALUE -1 - -#define IWL_MIN_RSSI_VAL -100 -#define IWL_MAX_RSSI_VAL 0 - -/* These values specify how many Tx frame attempts before - * searching for a new modulation mode */ -#define IWL_LEGACY_FAILURE_LIMIT 160 -#define IWL_LEGACY_SUCCESS_LIMIT 480 -#define IWL_LEGACY_TABLE_COUNT 160 - -#define IWL_NONE_LEGACY_FAILURE_LIMIT 400 -#define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500 -#define IWL_NONE_LEGACY_TABLE_COUNT 1500 - -/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */ -#define IWL_RS_GOOD_RATIO 12800 /* 100% */ -#define IWL_RATE_SCALE_SWITCH 10880 /* 85% */ -#define IWL_RATE_HIGH_TH 10880 /* 85% */ -#define IWL_RATE_INCREASE_TH 6400 /* 50% */ -#define IWL_RATE_DECREASE_TH 1920 /* 15% */ - -/* possible actions when in legacy mode */ -#define IWL_LEGACY_SWITCH_ANTENNA1 0 -#define IWL_LEGACY_SWITCH_ANTENNA2 1 -#define IWL_LEGACY_SWITCH_SISO 2 -#define IWL_LEGACY_SWITCH_MIMO2_AB 3 -#define IWL_LEGACY_SWITCH_MIMO2_AC 4 -#define IWL_LEGACY_SWITCH_MIMO2_BC 5 - -/* possible actions when in siso mode */ -#define IWL_SISO_SWITCH_ANTENNA1 0 -#define IWL_SISO_SWITCH_ANTENNA2 1 -#define IWL_SISO_SWITCH_MIMO2_AB 2 -#define IWL_SISO_SWITCH_MIMO2_AC 3 -#define IWL_SISO_SWITCH_MIMO2_BC 4 -#define IWL_SISO_SWITCH_GI 5 - -/* possible actions when in mimo mode */ -#define IWL_MIMO2_SWITCH_ANTENNA1 0 -#define IWL_MIMO2_SWITCH_ANTENNA2 1 -#define IWL_MIMO2_SWITCH_SISO_A 2 -#define IWL_MIMO2_SWITCH_SISO_B 3 -#define IWL_MIMO2_SWITCH_SISO_C 4 -#define IWL_MIMO2_SWITCH_GI 5 - -#define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_GI - -#define IWL_ACTION_LIMIT 3 /* # possible actions */ - -#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */ - -/* load per tid defines for A-MPDU activation */ -#define IWL_AGG_TPT_THREHOLD 0 -#define IWL_AGG_LOAD_THRESHOLD 10 -#define IWL_AGG_ALL_TID 0xff -#define TID_QUEUE_CELL_SPACING 50 /*mS */ -#define TID_QUEUE_MAX_SIZE 20 -#define TID_ROUND_VALUE 5 /* mS */ -#define TID_MAX_LOAD_COUNT 8 - -#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING) -#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y)) - -extern const struct iwl_rate_info iwlegacy_rates[IWL_RATE_COUNT]; - -enum iwl_table_type { - LQ_NONE, - LQ_G, /* legacy types */ - LQ_A, - LQ_SISO, /* high-throughput types */ - LQ_MIMO2, - LQ_MAX, -}; - -#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A)) -#define is_siso(tbl) ((tbl) == LQ_SISO) -#define is_mimo2(tbl) ((tbl) == LQ_MIMO2) -#define is_mimo(tbl) (is_mimo2(tbl)) -#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl)) -#define is_a_band(tbl) ((tbl) == LQ_A) -#define is_g_and(tbl) ((tbl) == LQ_G) - -#define ANT_NONE 0x0 -#define ANT_A BIT(0) -#define ANT_B BIT(1) -#define ANT_AB (ANT_A | ANT_B) -#define ANT_C BIT(2) -#define ANT_AC (ANT_A | ANT_C) -#define ANT_BC (ANT_B | ANT_C) -#define ANT_ABC (ANT_AB | ANT_C) - -#define IWL_MAX_MCS_DISPLAY_SIZE 12 - -struct iwl_rate_mcs_info { - char mbps[IWL_MAX_MCS_DISPLAY_SIZE]; - char mcs[IWL_MAX_MCS_DISPLAY_SIZE]; -}; - -/** - * struct iwl_rate_scale_data -- tx success history for one rate - */ -struct iwl_rate_scale_data { - u64 data; /* bitmap of successful frames */ - s32 success_counter; /* number of frames successful */ - s32 success_ratio; /* per-cent * 128 */ - s32 counter; /* number of frames attempted */ - s32 average_tpt; /* success ratio * expected throughput */ - unsigned long stamp; -}; - -/** - * struct iwl_scale_tbl_info -- tx params and success history for all rates - * - * There are two of these in struct iwl_lq_sta, - * one for "active", and one for "search". - */ -struct iwl_scale_tbl_info { - enum iwl_table_type lq_type; - u8 ant_type; - u8 is_SGI; /* 1 = short guard interval */ - u8 is_ht40; /* 1 = 40 MHz channel width */ - u8 is_dup; /* 1 = duplicated data streams */ - u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */ - u8 max_search; /* maximun number of tables we can search */ - s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ - u32 current_rate; /* rate_n_flags, uCode API format */ - struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */ -}; - -struct iwl_traffic_load { - unsigned long time_stamp; /* age of the oldest statistics */ - u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time - * slice */ - u32 total; /* total num of packets during the - * last TID_MAX_TIME_DIFF */ - u8 queue_count; /* number of queues that has - * been used since the last cleanup */ - u8 head; /* start of the circular buffer */ -}; - -/** - * struct iwl_lq_sta -- driver's rate scaling private structure - * - * Pointer to this gets passed back and forth between driver and mac80211. - */ -struct iwl_lq_sta { - u8 active_tbl; /* index of active table, range 0-1 */ - u8 enable_counter; /* indicates HT mode */ - u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */ - u8 search_better_tbl; /* 1: currently trying alternate mode */ - s32 last_tpt; - - /* The following determine when to search for a new mode */ - u32 table_count_limit; - u32 max_failure_limit; /* # failed frames before new search */ - u32 max_success_limit; /* # successful frames before new search */ - u32 table_count; - u32 total_failed; /* total failed frames, any/all rates */ - u32 total_success; /* total successful frames, any/all rates */ - u64 flush_timer; /* time staying in mode before new search */ - - u8 action_counter; /* # mode-switch actions tried */ - u8 is_green; - u8 is_dup; - enum ieee80211_band band; - - /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */ - u32 supp_rates; - u16 active_legacy_rate; - u16 active_siso_rate; - u16 active_mimo2_rate; - s8 max_rate_idx; /* Max rate set by user */ - u8 missed_rate_counter; - - struct iwl_link_quality_cmd lq; - struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ - struct iwl_traffic_load load[TID_MAX_LOAD_COUNT]; - u8 tx_agg_tid_en; -#ifdef CONFIG_MAC80211_DEBUGFS - struct dentry *rs_sta_dbgfs_scale_table_file; - struct dentry *rs_sta_dbgfs_stats_table_file; - struct dentry *rs_sta_dbgfs_rate_scale_data_file; - struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file; - u32 dbg_fixed_rate; -#endif - struct iwl_priv *drv; - - /* used to be in sta_info */ - int last_txrate_idx; - /* last tx rate_n_flags */ - u32 last_rate_n_flags; - /* packets destined for this STA are aggregated */ - u8 is_agg; -}; - -static inline u8 iwl4965_num_of_ant(u8 mask) -{ - return !!((mask) & ANT_A) + - !!((mask) & ANT_B) + - !!((mask) & ANT_C); -} - -static inline u8 iwl4965_first_antenna(u8 mask) -{ - if (mask & ANT_A) - return ANT_A; - if (mask & ANT_B) - return ANT_B; - return ANT_C; -} - - -/** - * iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info - * - * The specific throughput table used is based on the type of network - * the associated with, including A, B, G, and G w/ TGG protection - */ -extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id); - -/* Initialize station's rate scaling information after adding station */ -extern void iwl4965_rs_rate_init(struct iwl_priv *priv, - struct ieee80211_sta *sta, u8 sta_id); -extern void iwl3945_rs_rate_init(struct iwl_priv *priv, - struct ieee80211_sta *sta, u8 sta_id); - -/** - * iwl_rate_control_register - Register the rate control algorithm callbacks - * - * Since the rate control algorithm is hardware specific, there is no need - * or reason to place it as a stand alone module. The driver can call - * iwl_rate_control_register in order to register the rate control callbacks - * with the mac80211 subsystem. This should be performed prior to calling - * ieee80211_register_hw - * - */ -extern int iwl4965_rate_control_register(void); -extern int iwl3945_rate_control_register(void); - -/** - * iwl_rate_control_unregister - Unregister the rate control callbacks - * - * This should be called after calling ieee80211_unregister_hw, but before - * the driver is unloaded. - */ -extern void iwl4965_rate_control_unregister(void); -extern void iwl3945_rate_control_unregister(void); - -#endif /* __iwl_legacy_rs__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-power.c b/drivers/net/wireless/iwlegacy/iwl-power.c deleted file mode 100644 index 903ef0d6d6cb..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-power.c +++ /dev/null @@ -1,165 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ - - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/init.h> - -#include <net/mac80211.h> - -#include "iwl-eeprom.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-commands.h" -#include "iwl-debug.h" -#include "iwl-power.h" - -/* - * Setting power level allows the card to go to sleep when not busy. - * - * We calculate a sleep command based on the required latency, which - * we get from mac80211. In order to handle thermal throttling, we can - * also use pre-defined power levels. - */ - -/* - * This defines the old power levels. They are still used by default - * (level 1) and for thermal throttle (levels 3 through 5) - */ - -struct iwl_power_vec_entry { - struct iwl_powertable_cmd cmd; - u8 no_dtim; /* number of skip dtim */ -}; - -static void iwl_legacy_power_sleep_cam_cmd(struct iwl_priv *priv, - struct iwl_powertable_cmd *cmd) -{ - memset(cmd, 0, sizeof(*cmd)); - - if (priv->power_data.pci_pm) - cmd->flags |= IWL_POWER_PCI_PM_MSK; - - IWL_DEBUG_POWER(priv, "Sleep command for CAM\n"); -} - -static int -iwl_legacy_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd) -{ - IWL_DEBUG_POWER(priv, "Sending power/sleep command\n"); - IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags); - IWL_DEBUG_POWER(priv, "Tx timeout = %u\n", - le32_to_cpu(cmd->tx_data_timeout)); - IWL_DEBUG_POWER(priv, "Rx timeout = %u\n", - le32_to_cpu(cmd->rx_data_timeout)); - IWL_DEBUG_POWER(priv, - "Sleep interval vector = { %d , %d , %d , %d , %d }\n", - le32_to_cpu(cmd->sleep_interval[0]), - le32_to_cpu(cmd->sleep_interval[1]), - le32_to_cpu(cmd->sleep_interval[2]), - le32_to_cpu(cmd->sleep_interval[3]), - le32_to_cpu(cmd->sleep_interval[4])); - - return iwl_legacy_send_cmd_pdu(priv, POWER_TABLE_CMD, - sizeof(struct iwl_powertable_cmd), cmd); -} - -int -iwl_legacy_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd, - bool force) -{ - int ret; - bool update_chains; - - lockdep_assert_held(&priv->mutex); - - /* Don't update the RX chain when chain noise calibration is running */ - update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE || - priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE; - - if (!memcmp(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)) && !force) - return 0; - - if (!iwl_legacy_is_ready_rf(priv)) - return -EIO; - - /* scan complete use sleep_power_next, need to be updated */ - memcpy(&priv->power_data.sleep_cmd_next, cmd, sizeof(*cmd)); - if (test_bit(STATUS_SCANNING, &priv->status) && !force) { - IWL_DEBUG_INFO(priv, "Defer power set mode while scanning\n"); - return 0; - } - - if (cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK) - set_bit(STATUS_POWER_PMI, &priv->status); - - ret = iwl_legacy_set_power(priv, cmd); - if (!ret) { - if (!(cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK)) - clear_bit(STATUS_POWER_PMI, &priv->status); - - if (priv->cfg->ops->lib->update_chain_flags && update_chains) - priv->cfg->ops->lib->update_chain_flags(priv); - else if (priv->cfg->ops->lib->update_chain_flags) - IWL_DEBUG_POWER(priv, - "Cannot update the power, chain noise " - "calibration running: %d\n", - priv->chain_noise_data.state); - - memcpy(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)); - } else - IWL_ERR(priv, "set power fail, ret = %d", ret); - - return ret; -} - -int iwl_legacy_power_update_mode(struct iwl_priv *priv, bool force) -{ - struct iwl_powertable_cmd cmd; - - iwl_legacy_power_sleep_cam_cmd(priv, &cmd); - return iwl_legacy_power_set_mode(priv, &cmd, force); -} -EXPORT_SYMBOL(iwl_legacy_power_update_mode); - -/* initialize to default */ -void iwl_legacy_power_initialize(struct iwl_priv *priv) -{ - u16 lctl = iwl_legacy_pcie_link_ctl(priv); - - priv->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN); - - priv->power_data.debug_sleep_level_override = -1; - - memset(&priv->power_data.sleep_cmd, 0, - sizeof(priv->power_data.sleep_cmd)); -} -EXPORT_SYMBOL(iwl_legacy_power_initialize); diff --git a/drivers/net/wireless/iwlegacy/iwl-power.h b/drivers/net/wireless/iwlegacy/iwl-power.h deleted file mode 100644 index d30b36acdc4a..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-power.h +++ /dev/null @@ -1,55 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ -#ifndef __iwl_legacy_power_setting_h__ -#define __iwl_legacy_power_setting_h__ - -#include "iwl-commands.h" - -enum iwl_power_level { - IWL_POWER_INDEX_1, - IWL_POWER_INDEX_2, - IWL_POWER_INDEX_3, - IWL_POWER_INDEX_4, - IWL_POWER_INDEX_5, - IWL_POWER_NUM -}; - -struct iwl_power_mgr { - struct iwl_powertable_cmd sleep_cmd; - struct iwl_powertable_cmd sleep_cmd_next; - int debug_sleep_level_override; - bool pci_pm; -}; - -int -iwl_legacy_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd, - bool force); -int iwl_legacy_power_update_mode(struct iwl_priv *priv, bool force); -void iwl_legacy_power_initialize(struct iwl_priv *priv); - -#endif /* __iwl_legacy_power_setting_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-rx.c b/drivers/net/wireless/iwlegacy/iwl-rx.c deleted file mode 100644 index f4d21ec22497..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-rx.c +++ /dev/null @@ -1,282 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/etherdevice.h> -#include <linux/slab.h> -#include <linux/export.h> -#include <net/mac80211.h> -#include <asm/unaligned.h> -#include "iwl-eeprom.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-sta.h" -#include "iwl-io.h" -#include "iwl-helpers.h" -/************************** RX-FUNCTIONS ****************************/ -/* - * Rx theory of operation - * - * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs), - * each of which point to Receive Buffers to be filled by the NIC. These get - * used not only for Rx frames, but for any command response or notification - * from the NIC. The driver and NIC manage the Rx buffers by means - * of indexes into the circular buffer. - * - * Rx Queue Indexes - * The host/firmware share two index registers for managing the Rx buffers. - * - * The READ index maps to the first position that the firmware may be writing - * to -- the driver can read up to (but not including) this position and get - * good data. - * The READ index is managed by the firmware once the card is enabled. - * - * The WRITE index maps to the last position the driver has read from -- the - * position preceding WRITE is the last slot the firmware can place a packet. - * - * The queue is empty (no good data) if WRITE = READ - 1, and is full if - * WRITE = READ. - * - * During initialization, the host sets up the READ queue position to the first - * INDEX position, and WRITE to the last (READ - 1 wrapped) - * - * When the firmware places a packet in a buffer, it will advance the READ index - * and fire the RX interrupt. The driver can then query the READ index and - * process as many packets as possible, moving the WRITE index forward as it - * resets the Rx queue buffers with new memory. - * - * The management in the driver is as follows: - * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When - * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled - * to replenish the iwl->rxq->rx_free. - * + In iwl_rx_replenish (scheduled) if 'processed' != 'read' then the - * iwl->rxq is replenished and the READ INDEX is updated (updating the - * 'processed' and 'read' driver indexes as well) - * + A received packet is processed and handed to the kernel network stack, - * detached from the iwl->rxq. The driver 'processed' index is updated. - * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free - * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ - * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there - * were enough free buffers and RX_STALLED is set it is cleared. - * - * - * Driver sequence: - * - * iwl_legacy_rx_queue_alloc() Allocates rx_free - * iwl_rx_replenish() Replenishes rx_free list from rx_used, and calls - * iwl_rx_queue_restock - * iwl_rx_queue_restock() Moves available buffers from rx_free into Rx - * queue, updates firmware pointers, and updates - * the WRITE index. If insufficient rx_free buffers - * are available, schedules iwl_rx_replenish - * - * -- enable interrupts -- - * ISR - iwl_rx() Detach iwl_rx_mem_buffers from pool up to the - * READ INDEX, detaching the SKB from the pool. - * Moves the packet buffer from queue to rx_used. - * Calls iwl_rx_queue_restock to refill any empty - * slots. - * ... - * - */ - -/** - * iwl_legacy_rx_queue_space - Return number of free slots available in queue. - */ -int iwl_legacy_rx_queue_space(const struct iwl_rx_queue *q) -{ - int s = q->read - q->write; - if (s <= 0) - s += RX_QUEUE_SIZE; - /* keep some buffer to not confuse full and empty queue */ - s -= 2; - if (s < 0) - s = 0; - return s; -} -EXPORT_SYMBOL(iwl_legacy_rx_queue_space); - -/** - * iwl_legacy_rx_queue_update_write_ptr - Update the write pointer for the RX queue - */ -void -iwl_legacy_rx_queue_update_write_ptr(struct iwl_priv *priv, - struct iwl_rx_queue *q) -{ - unsigned long flags; - u32 rx_wrt_ptr_reg = priv->hw_params.rx_wrt_ptr_reg; - u32 reg; - - spin_lock_irqsave(&q->lock, flags); - - if (q->need_update == 0) - goto exit_unlock; - - /* If power-saving is in use, make sure device is awake */ - if (test_bit(STATUS_POWER_PMI, &priv->status)) { - reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); - - if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO(priv, - "Rx queue requesting wakeup," - " GP1 = 0x%x\n", reg); - iwl_legacy_set_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - goto exit_unlock; - } - - q->write_actual = (q->write & ~0x7); - iwl_legacy_write_direct32(priv, rx_wrt_ptr_reg, - q->write_actual); - - /* Else device is assumed to be awake */ - } else { - /* Device expects a multiple of 8 */ - q->write_actual = (q->write & ~0x7); - iwl_legacy_write_direct32(priv, rx_wrt_ptr_reg, - q->write_actual); - } - - q->need_update = 0; - - exit_unlock: - spin_unlock_irqrestore(&q->lock, flags); -} -EXPORT_SYMBOL(iwl_legacy_rx_queue_update_write_ptr); - -int iwl_legacy_rx_queue_alloc(struct iwl_priv *priv) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct device *dev = &priv->pci_dev->dev; - int i; - - spin_lock_init(&rxq->lock); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); - - /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ - rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma, - GFP_KERNEL); - if (!rxq->bd) - goto err_bd; - - rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct iwl_rb_status), - &rxq->rb_stts_dma, GFP_KERNEL); - if (!rxq->rb_stts) - goto err_rb; - - /* Fill the rx_used queue with _all_ of the Rx buffers */ - for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); - - /* Set us so that we have processed and used all buffers, but have - * not restocked the Rx queue with fresh buffers */ - rxq->read = rxq->write = 0; - rxq->write_actual = 0; - rxq->free_count = 0; - rxq->need_update = 0; - return 0; - -err_rb: - dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, - rxq->bd_dma); -err_bd: - return -ENOMEM; -} -EXPORT_SYMBOL(iwl_legacy_rx_queue_alloc); - - -void iwl_legacy_rx_spectrum_measure_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif); - - if (!report->state) { - IWL_DEBUG_11H(priv, - "Spectrum Measure Notification: Start\n"); - return; - } - - memcpy(&priv->measure_report, report, sizeof(*report)); - priv->measurement_status |= MEASUREMENT_READY; -} -EXPORT_SYMBOL(iwl_legacy_rx_spectrum_measure_notif); - -/* - * returns non-zero if packet should be dropped - */ -int iwl_legacy_set_decrypted_flag(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, - u32 decrypt_res, - struct ieee80211_rx_status *stats) -{ - u16 fc = le16_to_cpu(hdr->frame_control); - - /* - * All contexts have the same setting here due to it being - * a module parameter, so OK to check any context. - */ - if (priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags & - RXON_FILTER_DIS_DECRYPT_MSK) - return 0; - - if (!(fc & IEEE80211_FCTL_PROTECTED)) - return 0; - - IWL_DEBUG_RX(priv, "decrypt_res:0x%x\n", decrypt_res); - switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { - case RX_RES_STATUS_SEC_TYPE_TKIP: - /* The uCode has got a bad phase 1 Key, pushes the packet. - * Decryption will be done in SW. */ - if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == - RX_RES_STATUS_BAD_KEY_TTAK) - break; - - case RX_RES_STATUS_SEC_TYPE_WEP: - if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == - RX_RES_STATUS_BAD_ICV_MIC) { - /* bad ICV, the packet is destroyed since the - * decryption is inplace, drop it */ - IWL_DEBUG_RX(priv, "Packet destroyed\n"); - return -1; - } - case RX_RES_STATUS_SEC_TYPE_CCMP: - if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == - RX_RES_STATUS_DECRYPT_OK) { - IWL_DEBUG_RX(priv, "hw decrypt successfully!!!\n"); - stats->flag |= RX_FLAG_DECRYPTED; - } - break; - - default: - break; - } - return 0; -} -EXPORT_SYMBOL(iwl_legacy_set_decrypted_flag); diff --git a/drivers/net/wireless/iwlegacy/iwl-scan.c b/drivers/net/wireless/iwlegacy/iwl-scan.c deleted file mode 100644 index 521b73b527d3..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-scan.c +++ /dev/null @@ -1,550 +0,0 @@ -/****************************************************************************** - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - *****************************************************************************/ -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/etherdevice.h> -#include <linux/export.h> -#include <net/mac80211.h> - -#include "iwl-eeprom.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-sta.h" -#include "iwl-io.h" -#include "iwl-helpers.h" - -/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after - * sending probe req. This should be set long enough to hear probe responses - * from more than one AP. */ -#define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */ -#define IWL_ACTIVE_DWELL_TIME_52 (20) - -#define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3) -#define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2) - -/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. - * Must be set longer than active dwell time. - * For the most reliable scan, set > AP beacon interval (typically 100msec). */ -#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ -#define IWL_PASSIVE_DWELL_TIME_52 (10) -#define IWL_PASSIVE_DWELL_BASE (100) -#define IWL_CHANNEL_TUNE_TIME 5 - -static int iwl_legacy_send_scan_abort(struct iwl_priv *priv) -{ - int ret; - struct iwl_rx_packet *pkt; - struct iwl_host_cmd cmd = { - .id = REPLY_SCAN_ABORT_CMD, - .flags = CMD_WANT_SKB, - }; - - /* Exit instantly with error when device is not ready - * to receive scan abort command or it does not perform - * hardware scan currently */ - if (!test_bit(STATUS_READY, &priv->status) || - !test_bit(STATUS_GEO_CONFIGURED, &priv->status) || - !test_bit(STATUS_SCAN_HW, &priv->status) || - test_bit(STATUS_FW_ERROR, &priv->status) || - test_bit(STATUS_EXIT_PENDING, &priv->status)) - return -EIO; - - ret = iwl_legacy_send_cmd_sync(priv, &cmd); - if (ret) - return ret; - - pkt = (struct iwl_rx_packet *)cmd.reply_page; - if (pkt->u.status != CAN_ABORT_STATUS) { - /* The scan abort will return 1 for success or - * 2 for "failure". A failure condition can be - * due to simply not being in an active scan which - * can occur if we send the scan abort before we - * the microcode has notified us that a scan is - * completed. */ - IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n", pkt->u.status); - ret = -EIO; - } - - iwl_legacy_free_pages(priv, cmd.reply_page); - return ret; -} - -static void iwl_legacy_complete_scan(struct iwl_priv *priv, bool aborted) -{ - /* check if scan was requested from mac80211 */ - if (priv->scan_request) { - IWL_DEBUG_SCAN(priv, "Complete scan in mac80211\n"); - ieee80211_scan_completed(priv->hw, aborted); - } - - priv->scan_vif = NULL; - priv->scan_request = NULL; -} - -void iwl_legacy_force_scan_end(struct iwl_priv *priv) -{ - lockdep_assert_held(&priv->mutex); - - if (!test_bit(STATUS_SCANNING, &priv->status)) { - IWL_DEBUG_SCAN(priv, "Forcing scan end while not scanning\n"); - return; - } - - IWL_DEBUG_SCAN(priv, "Forcing scan end\n"); - clear_bit(STATUS_SCANNING, &priv->status); - clear_bit(STATUS_SCAN_HW, &priv->status); - clear_bit(STATUS_SCAN_ABORTING, &priv->status); - iwl_legacy_complete_scan(priv, true); -} - -static void iwl_legacy_do_scan_abort(struct iwl_priv *priv) -{ - int ret; - - lockdep_assert_held(&priv->mutex); - - if (!test_bit(STATUS_SCANNING, &priv->status)) { - IWL_DEBUG_SCAN(priv, "Not performing scan to abort\n"); - return; - } - - if (test_and_set_bit(STATUS_SCAN_ABORTING, &priv->status)) { - IWL_DEBUG_SCAN(priv, "Scan abort in progress\n"); - return; - } - - ret = iwl_legacy_send_scan_abort(priv); - if (ret) { - IWL_DEBUG_SCAN(priv, "Send scan abort failed %d\n", ret); - iwl_legacy_force_scan_end(priv); - } else - IWL_DEBUG_SCAN(priv, "Successfully send scan abort\n"); -} - -/** - * iwl_scan_cancel - Cancel any currently executing HW scan - */ -int iwl_legacy_scan_cancel(struct iwl_priv *priv) -{ - IWL_DEBUG_SCAN(priv, "Queuing abort scan\n"); - queue_work(priv->workqueue, &priv->abort_scan); - return 0; -} -EXPORT_SYMBOL(iwl_legacy_scan_cancel); - -/** - * iwl_legacy_scan_cancel_timeout - Cancel any currently executing HW scan - * @ms: amount of time to wait (in milliseconds) for scan to abort - * - */ -int iwl_legacy_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms) -{ - unsigned long timeout = jiffies + msecs_to_jiffies(ms); - - lockdep_assert_held(&priv->mutex); - - IWL_DEBUG_SCAN(priv, "Scan cancel timeout\n"); - - iwl_legacy_do_scan_abort(priv); - - while (time_before_eq(jiffies, timeout)) { - if (!test_bit(STATUS_SCAN_HW, &priv->status)) - break; - msleep(20); - } - - return test_bit(STATUS_SCAN_HW, &priv->status); -} -EXPORT_SYMBOL(iwl_legacy_scan_cancel_timeout); - -/* Service response to REPLY_SCAN_CMD (0x80) */ -static void iwl_legacy_rx_reply_scan(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_scanreq_notification *notif = - (struct iwl_scanreq_notification *)pkt->u.raw; - - IWL_DEBUG_SCAN(priv, "Scan request status = 0x%x\n", notif->status); -#endif -} - -/* Service SCAN_START_NOTIFICATION (0x82) */ -static void iwl_legacy_rx_scan_start_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_scanstart_notification *notif = - (struct iwl_scanstart_notification *)pkt->u.raw; - priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); - IWL_DEBUG_SCAN(priv, "Scan start: " - "%d [802.11%s] " - "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", - notif->channel, - notif->band ? "bg" : "a", - le32_to_cpu(notif->tsf_high), - le32_to_cpu(notif->tsf_low), - notif->status, notif->beacon_timer); -} - -/* Service SCAN_RESULTS_NOTIFICATION (0x83) */ -static void iwl_legacy_rx_scan_results_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_scanresults_notification *notif = - (struct iwl_scanresults_notification *)pkt->u.raw; - - IWL_DEBUG_SCAN(priv, "Scan ch.res: " - "%d [802.11%s] " - "(TSF: 0x%08X:%08X) - %d " - "elapsed=%lu usec\n", - notif->channel, - notif->band ? "bg" : "a", - le32_to_cpu(notif->tsf_high), - le32_to_cpu(notif->tsf_low), - le32_to_cpu(notif->statistics[0]), - le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf); -#endif -} - -/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ -static void iwl_legacy_rx_scan_complete_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw; -#endif - - IWL_DEBUG_SCAN(priv, - "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", - scan_notif->scanned_channels, - scan_notif->tsf_low, - scan_notif->tsf_high, scan_notif->status); - - /* The HW is no longer scanning */ - clear_bit(STATUS_SCAN_HW, &priv->status); - - IWL_DEBUG_SCAN(priv, "Scan on %sGHz took %dms\n", - (priv->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2", - jiffies_to_msecs(jiffies - priv->scan_start)); - - queue_work(priv->workqueue, &priv->scan_completed); -} - -void iwl_legacy_setup_rx_scan_handlers(struct iwl_priv *priv) -{ - /* scan handlers */ - priv->rx_handlers[REPLY_SCAN_CMD] = iwl_legacy_rx_reply_scan; - priv->rx_handlers[SCAN_START_NOTIFICATION] = - iwl_legacy_rx_scan_start_notif; - priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = - iwl_legacy_rx_scan_results_notif; - priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = - iwl_legacy_rx_scan_complete_notif; -} -EXPORT_SYMBOL(iwl_legacy_setup_rx_scan_handlers); - -inline u16 iwl_legacy_get_active_dwell_time(struct iwl_priv *priv, - enum ieee80211_band band, - u8 n_probes) -{ - if (band == IEEE80211_BAND_5GHZ) - return IWL_ACTIVE_DWELL_TIME_52 + - IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1); - else - return IWL_ACTIVE_DWELL_TIME_24 + - IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1); -} -EXPORT_SYMBOL(iwl_legacy_get_active_dwell_time); - -u16 iwl_legacy_get_passive_dwell_time(struct iwl_priv *priv, - enum ieee80211_band band, - struct ieee80211_vif *vif) -{ - struct iwl_rxon_context *ctx; - u16 passive = (band == IEEE80211_BAND_2GHZ) ? - IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : - IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; - - if (iwl_legacy_is_any_associated(priv)) { - /* - * If we're associated, we clamp the maximum passive - * dwell time to be 98% of the smallest beacon interval - * (minus 2 * channel tune time) - */ - for_each_context(priv, ctx) { - u16 value; - - if (!iwl_legacy_is_associated_ctx(ctx)) - continue; - value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0; - if ((value > IWL_PASSIVE_DWELL_BASE) || !value) - value = IWL_PASSIVE_DWELL_BASE; - value = (value * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; - passive = min(value, passive); - } - } - - return passive; -} -EXPORT_SYMBOL(iwl_legacy_get_passive_dwell_time); - -void iwl_legacy_init_scan_params(struct iwl_priv *priv) -{ - u8 ant_idx = fls(priv->hw_params.valid_tx_ant) - 1; - if (!priv->scan_tx_ant[IEEE80211_BAND_5GHZ]) - priv->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx; - if (!priv->scan_tx_ant[IEEE80211_BAND_2GHZ]) - priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx; -} -EXPORT_SYMBOL(iwl_legacy_init_scan_params); - -static int iwl_legacy_scan_initiate(struct iwl_priv *priv, - struct ieee80211_vif *vif) -{ - int ret; - - lockdep_assert_held(&priv->mutex); - - if (WARN_ON(!priv->cfg->ops->utils->request_scan)) - return -EOPNOTSUPP; - - cancel_delayed_work(&priv->scan_check); - - if (!iwl_legacy_is_ready_rf(priv)) { - IWL_WARN(priv, "Request scan called when driver not ready.\n"); - return -EIO; - } - - if (test_bit(STATUS_SCAN_HW, &priv->status)) { - IWL_DEBUG_SCAN(priv, - "Multiple concurrent scan requests in parallel.\n"); - return -EBUSY; - } - - if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { - IWL_DEBUG_SCAN(priv, "Scan request while abort pending.\n"); - return -EBUSY; - } - - IWL_DEBUG_SCAN(priv, "Starting scan...\n"); - - set_bit(STATUS_SCANNING, &priv->status); - priv->scan_start = jiffies; - - ret = priv->cfg->ops->utils->request_scan(priv, vif); - if (ret) { - clear_bit(STATUS_SCANNING, &priv->status); - return ret; - } - - queue_delayed_work(priv->workqueue, &priv->scan_check, - IWL_SCAN_CHECK_WATCHDOG); - - return 0; -} - -int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct cfg80211_scan_request *req) -{ - struct iwl_priv *priv = hw->priv; - int ret; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (req->n_channels == 0) - return -EINVAL; - - mutex_lock(&priv->mutex); - - if (test_bit(STATUS_SCANNING, &priv->status)) { - IWL_DEBUG_SCAN(priv, "Scan already in progress.\n"); - ret = -EAGAIN; - goto out_unlock; - } - - /* mac80211 will only ask for one band at a time */ - priv->scan_request = req; - priv->scan_vif = vif; - priv->scan_band = req->channels[0]->band; - - ret = iwl_legacy_scan_initiate(priv, vif); - - IWL_DEBUG_MAC80211(priv, "leave\n"); - -out_unlock: - mutex_unlock(&priv->mutex); - - return ret; -} -EXPORT_SYMBOL(iwl_legacy_mac_hw_scan); - -static void iwl_legacy_bg_scan_check(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, scan_check.work); - - IWL_DEBUG_SCAN(priv, "Scan check work\n"); - - /* Since we are here firmware does not finish scan and - * most likely is in bad shape, so we don't bother to - * send abort command, just force scan complete to mac80211 */ - mutex_lock(&priv->mutex); - iwl_legacy_force_scan_end(priv); - mutex_unlock(&priv->mutex); -} - -/** - * iwl_legacy_fill_probe_req - fill in all required fields and IE for probe request - */ - -u16 -iwl_legacy_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame, - const u8 *ta, const u8 *ies, int ie_len, int left) -{ - int len = 0; - u8 *pos = NULL; - - /* Make sure there is enough space for the probe request, - * two mandatory IEs and the data */ - left -= 24; - if (left < 0) - return 0; - - frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); - memcpy(frame->da, iwlegacy_bcast_addr, ETH_ALEN); - memcpy(frame->sa, ta, ETH_ALEN); - memcpy(frame->bssid, iwlegacy_bcast_addr, ETH_ALEN); - frame->seq_ctrl = 0; - - len += 24; - - /* ...next IE... */ - pos = &frame->u.probe_req.variable[0]; - - /* fill in our indirect SSID IE */ - left -= 2; - if (left < 0) - return 0; - *pos++ = WLAN_EID_SSID; - *pos++ = 0; - - len += 2; - - if (WARN_ON(left < ie_len)) - return len; - - if (ies && ie_len) { - memcpy(pos, ies, ie_len); - len += ie_len; - } - - return (u16)len; -} -EXPORT_SYMBOL(iwl_legacy_fill_probe_req); - -static void iwl_legacy_bg_abort_scan(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan); - - IWL_DEBUG_SCAN(priv, "Abort scan work\n"); - - /* We keep scan_check work queued in case when firmware will not - * report back scan completed notification */ - mutex_lock(&priv->mutex); - iwl_legacy_scan_cancel_timeout(priv, 200); - mutex_unlock(&priv->mutex); -} - -static void iwl_legacy_bg_scan_completed(struct work_struct *work) -{ - struct iwl_priv *priv = - container_of(work, struct iwl_priv, scan_completed); - bool aborted; - - IWL_DEBUG_SCAN(priv, "Completed scan.\n"); - - cancel_delayed_work(&priv->scan_check); - - mutex_lock(&priv->mutex); - - aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status); - if (aborted) - IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n"); - - if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) { - IWL_DEBUG_SCAN(priv, "Scan already completed.\n"); - goto out_settings; - } - - iwl_legacy_complete_scan(priv, aborted); - -out_settings: - /* Can we still talk to firmware ? */ - if (!iwl_legacy_is_ready_rf(priv)) - goto out; - - /* - * We do not commit power settings while scan is pending, - * do it now if the settings changed. - */ - iwl_legacy_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false); - iwl_legacy_set_tx_power(priv, priv->tx_power_next, false); - - priv->cfg->ops->utils->post_scan(priv); - -out: - mutex_unlock(&priv->mutex); -} - -void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv) -{ - INIT_WORK(&priv->scan_completed, iwl_legacy_bg_scan_completed); - INIT_WORK(&priv->abort_scan, iwl_legacy_bg_abort_scan); - INIT_DELAYED_WORK(&priv->scan_check, iwl_legacy_bg_scan_check); -} -EXPORT_SYMBOL(iwl_legacy_setup_scan_deferred_work); - -void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv) -{ - cancel_work_sync(&priv->abort_scan); - cancel_work_sync(&priv->scan_completed); - - if (cancel_delayed_work_sync(&priv->scan_check)) { - mutex_lock(&priv->mutex); - iwl_legacy_force_scan_end(priv); - mutex_unlock(&priv->mutex); - } -} -EXPORT_SYMBOL(iwl_legacy_cancel_scan_deferred_work); diff --git a/drivers/net/wireless/iwlegacy/iwl-spectrum.h b/drivers/net/wireless/iwlegacy/iwl-spectrum.h index 9f70a4723103..85fe48e520f9 100644 --- a/drivers/net/wireless/iwlegacy/iwl-spectrum.h +++ b/drivers/net/wireless/iwlegacy/iwl-spectrum.h @@ -26,8 +26,8 @@ * *****************************************************************************/ -#ifndef __iwl_legacy_spectrum_h__ -#define __iwl_legacy_spectrum_h__ +#ifndef __il_spectrum_h__ +#define __il_spectrum_h__ enum { /* ieee80211_basic_report.map */ IEEE80211_BASIC_MAP_BSS = (1 << 0), IEEE80211_BASIC_MAP_OFDM = (1 << 1), diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.c b/drivers/net/wireless/iwlegacy/iwl-sta.c index f10df3e2813a..75fe315f66b4 100644 --- a/drivers/net/wireless/iwlegacy/iwl-sta.c +++ b/drivers/net/wireless/iwlegacy/iwl-sta.c @@ -37,76 +37,76 @@ #include "iwl-core.h" #include "iwl-sta.h" -/* priv->sta_lock must be held */ -static void iwl_legacy_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) +/* il->sta_lock must be held */ +static void il_sta_ucode_activate(struct il_priv *il, u8 sta_id) { - if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) - IWL_ERR(priv, + if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) + IL_ERR( "ACTIVATE a non DRIVER active station id %u addr %pM\n", - sta_id, priv->stations[sta_id].sta.sta.addr); + sta_id, il->stations[sta_id].sta.sta.addr); - if (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) { - IWL_DEBUG_ASSOC(priv, + if (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) { + D_ASSOC( "STA id %u addr %pM already present" " in uCode (according to driver)\n", - sta_id, priv->stations[sta_id].sta.sta.addr); + sta_id, il->stations[sta_id].sta.sta.addr); } else { - priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE; - IWL_DEBUG_ASSOC(priv, "Added STA id %u addr %pM to uCode\n", - sta_id, priv->stations[sta_id].sta.sta.addr); + il->stations[sta_id].used |= IL_STA_UCODE_ACTIVE; + D_ASSOC("Added STA id %u addr %pM to uCode\n", + sta_id, il->stations[sta_id].sta.sta.addr); } } -static int iwl_legacy_process_add_sta_resp(struct iwl_priv *priv, - struct iwl_legacy_addsta_cmd *addsta, - struct iwl_rx_packet *pkt, +static int il_process_add_sta_resp(struct il_priv *il, + struct il_addsta_cmd *addsta, + struct il_rx_pkt *pkt, bool sync) { u8 sta_id = addsta->sta.sta_id; unsigned long flags; int ret = -EIO; - if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { - IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n", + if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { + IL_ERR("Bad return from C_ADD_STA (0x%08X)\n", pkt->hdr.flags); return ret; } - IWL_DEBUG_INFO(priv, "Processing response for adding station %u\n", + D_INFO("Processing response for adding station %u\n", sta_id); - spin_lock_irqsave(&priv->sta_lock, flags); + spin_lock_irqsave(&il->sta_lock, flags); switch (pkt->u.add_sta.status) { case ADD_STA_SUCCESS_MSK: - IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n"); - iwl_legacy_sta_ucode_activate(priv, sta_id); + D_INFO("C_ADD_STA PASSED\n"); + il_sta_ucode_activate(il, sta_id); ret = 0; break; - case ADD_STA_NO_ROOM_IN_TABLE: - IWL_ERR(priv, "Adding station %d failed, no room in table.\n", + case ADD_STA_NO_ROOM_IN_TBL: + IL_ERR("Adding station %d failed, no room in table.\n", sta_id); break; case ADD_STA_NO_BLOCK_ACK_RESOURCE: - IWL_ERR(priv, + IL_ERR( "Adding station %d failed, no block ack resource.\n", sta_id); break; case ADD_STA_MODIFY_NON_EXIST_STA: - IWL_ERR(priv, "Attempting to modify non-existing station %d\n", + IL_ERR("Attempting to modify non-existing station %d\n", sta_id); break; default: - IWL_DEBUG_ASSOC(priv, "Received REPLY_ADD_STA:(0x%08X)\n", + D_ASSOC("Received C_ADD_STA:(0x%08X)\n", pkt->u.add_sta.status); break; } - IWL_DEBUG_INFO(priv, "%s station id %u addr %pM\n", - priv->stations[sta_id].sta.mode == + D_INFO("%s station id %u addr %pM\n", + il->stations[sta_id].sta.mode == STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", - sta_id, priv->stations[sta_id].sta.sta.addr); + sta_id, il->stations[sta_id].sta.sta.addr); /* * XXX: The MAC address in the command buffer is often changed from @@ -116,68 +116,68 @@ static int iwl_legacy_process_add_sta_resp(struct iwl_priv *priv, * issue has not yet been resolved and this debugging is left to * observe the problem. */ - IWL_DEBUG_INFO(priv, "%s station according to cmd buffer %pM\n", - priv->stations[sta_id].sta.mode == + D_INFO("%s station according to cmd buffer %pM\n", + il->stations[sta_id].sta.mode == STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", addsta->sta.addr); - spin_unlock_irqrestore(&priv->sta_lock, flags); + spin_unlock_irqrestore(&il->sta_lock, flags); return ret; } -static void iwl_legacy_add_sta_callback(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct iwl_rx_packet *pkt) +static void il_add_sta_callback(struct il_priv *il, + struct il_device_cmd *cmd, + struct il_rx_pkt *pkt) { - struct iwl_legacy_addsta_cmd *addsta = - (struct iwl_legacy_addsta_cmd *)cmd->cmd.payload; + struct il_addsta_cmd *addsta = + (struct il_addsta_cmd *)cmd->cmd.payload; - iwl_legacy_process_add_sta_resp(priv, addsta, pkt, false); + il_process_add_sta_resp(il, addsta, pkt, false); } -int iwl_legacy_send_add_sta(struct iwl_priv *priv, - struct iwl_legacy_addsta_cmd *sta, u8 flags) +int il_send_add_sta(struct il_priv *il, + struct il_addsta_cmd *sta, u8 flags) { - struct iwl_rx_packet *pkt = NULL; + struct il_rx_pkt *pkt = NULL; int ret = 0; u8 data[sizeof(*sta)]; - struct iwl_host_cmd cmd = { - .id = REPLY_ADD_STA, + struct il_host_cmd cmd = { + .id = C_ADD_STA, .flags = flags, .data = data, }; u8 sta_id __maybe_unused = sta->sta.sta_id; - IWL_DEBUG_INFO(priv, "Adding sta %u (%pM) %ssynchronously\n", + D_INFO("Adding sta %u (%pM) %ssynchronously\n", sta_id, sta->sta.addr, flags & CMD_ASYNC ? "a" : ""); if (flags & CMD_ASYNC) - cmd.callback = iwl_legacy_add_sta_callback; + cmd.callback = il_add_sta_callback; else { cmd.flags |= CMD_WANT_SKB; might_sleep(); } - cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data); - ret = iwl_legacy_send_cmd(priv, &cmd); + cmd.len = il->cfg->ops->utils->build_addsta_hcmd(sta, data); + ret = il_send_cmd(il, &cmd); if (ret || (flags & CMD_ASYNC)) return ret; if (ret == 0) { - pkt = (struct iwl_rx_packet *)cmd.reply_page; - ret = iwl_legacy_process_add_sta_resp(priv, sta, pkt, true); + pkt = (struct il_rx_pkt *)cmd.reply_page; + ret = il_process_add_sta_resp(il, sta, pkt, true); } - iwl_legacy_free_pages(priv, cmd.reply_page); + il_free_pages(il, cmd.reply_page); return ret; } -EXPORT_SYMBOL(iwl_legacy_send_add_sta); +EXPORT_SYMBOL(il_send_add_sta); -static void iwl_legacy_set_ht_add_station(struct iwl_priv *priv, u8 index, +static void il_set_ht_add_station(struct il_priv *il, u8 idx, struct ieee80211_sta *sta, - struct iwl_rxon_context *ctx) + struct il_rxon_context *ctx) { struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap; __le32 sta_flags; @@ -187,13 +187,13 @@ static void iwl_legacy_set_ht_add_station(struct iwl_priv *priv, u8 index, goto done; mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; - IWL_DEBUG_ASSOC(priv, "spatial multiplexing power save mode: %s\n", + D_ASSOC("spatial multiplexing power save mode: %s\n", (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ? "static" : (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ? "dynamic" : "disabled"); - sta_flags = priv->stations[index].sta.station_flags; + sta_flags = il->stations[idx].sta.station_flags; sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); @@ -207,7 +207,7 @@ static void iwl_legacy_set_ht_add_station(struct iwl_priv *priv, u8 index, case WLAN_HT_CAP_SM_PS_DISABLED: break; default: - IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode); + IL_WARN("Invalid MIMO PS mode %d\n", mimo_ps_mode); break; } @@ -217,27 +217,27 @@ static void iwl_legacy_set_ht_add_station(struct iwl_priv *priv, u8 index, sta_flags |= cpu_to_le32( (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); - if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap)) + if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap)) sta_flags |= STA_FLG_HT40_EN_MSK; else sta_flags &= ~STA_FLG_HT40_EN_MSK; - priv->stations[index].sta.station_flags = sta_flags; + il->stations[idx].sta.station_flags = sta_flags; done: return; } /** - * iwl_legacy_prep_station - Prepare station information for addition + * il_prep_station - Prepare station information for addition * * should be called with sta_lock held */ -u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, +u8 il_prep_station(struct il_priv *il, struct il_rxon_context *ctx, const u8 *addr, bool is_ap, struct ieee80211_sta *sta) { - struct iwl_station_entry *station; + struct il_station_entry *station; int i; - u8 sta_id = IWL_INVALID_STATION; + u8 sta_id = IL_INVALID_STATION; u16 rate; if (is_ap) @@ -245,15 +245,15 @@ u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, else if (is_broadcast_ether_addr(addr)) sta_id = ctx->bcast_sta_id; else - for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) { - if (!compare_ether_addr(priv->stations[i].sta.sta.addr, + for (i = IL_STA_ID; i < il->hw_params.max_stations; i++) { + if (!compare_ether_addr(il->stations[i].sta.sta.addr, addr)) { sta_id = i; break; } - if (!priv->stations[i].used && - sta_id == IWL_INVALID_STATION) + if (!il->stations[i].used && + sta_id == IL_INVALID_STATION) sta_id = i; } @@ -261,7 +261,7 @@ u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, * These two conditions have the same outcome, but keep them * separate */ - if (unlikely(sta_id == IWL_INVALID_STATION)) + if (unlikely(sta_id == IL_INVALID_STATION)) return sta_id; /* @@ -269,30 +269,30 @@ u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, * station. Keep track if one is in progress so that we do not send * another. */ - if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) { - IWL_DEBUG_INFO(priv, + if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) { + D_INFO( "STA %d already in process of being added.\n", sta_id); return sta_id; } - if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) && - (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) && - !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) { - IWL_DEBUG_ASSOC(priv, + if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) && + (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) && + !compare_ether_addr(il->stations[sta_id].sta.sta.addr, addr)) { + D_ASSOC( "STA %d (%pM) already added, not adding again.\n", sta_id, addr); return sta_id; } - station = &priv->stations[sta_id]; - station->used = IWL_STA_DRIVER_ACTIVE; - IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n", + station = &il->stations[sta_id]; + station->used = IL_STA_DRIVER_ACTIVE; + D_ASSOC("Add STA to driver ID %d: %pM\n", sta_id, addr); - priv->num_stations++; + il->num_stations++; - /* Set up the REPLY_ADD_STA command to send to device */ - memset(&station->sta, 0, sizeof(struct iwl_legacy_addsta_cmd)); + /* Set up the C_ADD_STA command to send to device */ + memset(&station->sta, 0, sizeof(struct il_addsta_cmd)); memcpy(station->sta.sta.addr, addr, ETH_ALEN); station->sta.mode = 0; station->sta.sta.sta_id = sta_id; @@ -300,7 +300,7 @@ u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, station->ctxid = ctx->ctxid; if (sta) { - struct iwl_station_priv_common *sta_priv; + struct il_station_priv_common *sta_priv; sta_priv = (void *)sta->drv_priv; sta_priv->ctx = ctx; @@ -311,42 +311,42 @@ u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, * STA and broadcast STA) pass in a NULL sta, and mac80211 * doesn't allow HT IBSS. */ - iwl_legacy_set_ht_add_station(priv, sta_id, sta, ctx); + il_set_ht_add_station(il, sta_id, sta, ctx); /* 3945 only */ - rate = (priv->band == IEEE80211_BAND_5GHZ) ? - IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP; + rate = (il->band == IEEE80211_BAND_5GHZ) ? + RATE_6M_PLCP : RATE_1M_PLCP; /* Turn on both antennas for the station... */ station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK); return sta_id; } -EXPORT_SYMBOL_GPL(iwl_legacy_prep_station); +EXPORT_SYMBOL_GPL(il_prep_station); #define STA_WAIT_TIMEOUT (HZ/2) /** - * iwl_legacy_add_station_common - + * il_add_station_common - */ int -iwl_legacy_add_station_common(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, +il_add_station_common(struct il_priv *il, + struct il_rxon_context *ctx, const u8 *addr, bool is_ap, struct ieee80211_sta *sta, u8 *sta_id_r) { unsigned long flags_spin; int ret = 0; u8 sta_id; - struct iwl_legacy_addsta_cmd sta_cmd; + struct il_addsta_cmd sta_cmd; *sta_id_r = 0; - spin_lock_irqsave(&priv->sta_lock, flags_spin); - sta_id = iwl_legacy_prep_station(priv, ctx, addr, is_ap, sta); - if (sta_id == IWL_INVALID_STATION) { - IWL_ERR(priv, "Unable to prepare station %pM for addition\n", + spin_lock_irqsave(&il->sta_lock, flags_spin); + sta_id = il_prep_station(il, ctx, addr, is_ap, sta); + if (sta_id == IL_INVALID_STATION) { + IL_ERR("Unable to prepare station %pM for addition\n", addr); - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); return -EINVAL; } @@ -355,75 +355,75 @@ iwl_legacy_add_station_common(struct iwl_priv *priv, * station. Keep track if one is in progress so that we do not send * another. */ - if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) { - IWL_DEBUG_INFO(priv, + if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) { + D_INFO( "STA %d already in process of being added.\n", sta_id); - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); return -EEXIST; } - if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) && - (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { - IWL_DEBUG_ASSOC(priv, + if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) && + (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) { + D_ASSOC( "STA %d (%pM) already added, not adding again.\n", sta_id, addr); - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); return -EEXIST; } - priv->stations[sta_id].used |= IWL_STA_UCODE_INPROGRESS; - memcpy(&sta_cmd, &priv->stations[sta_id].sta, - sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + il->stations[sta_id].used |= IL_STA_UCODE_INPROGRESS; + memcpy(&sta_cmd, &il->stations[sta_id].sta, + sizeof(struct il_addsta_cmd)); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); /* Add station to device's station table */ - ret = iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); + ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC); if (ret) { - spin_lock_irqsave(&priv->sta_lock, flags_spin); - IWL_ERR(priv, "Adding station %pM failed.\n", - priv->stations[sta_id].sta.sta.addr); - priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; - priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS; - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_lock_irqsave(&il->sta_lock, flags_spin); + IL_ERR("Adding station %pM failed.\n", + il->stations[sta_id].sta.sta.addr); + il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE; + il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS; + spin_unlock_irqrestore(&il->sta_lock, flags_spin); } *sta_id_r = sta_id; return ret; } -EXPORT_SYMBOL(iwl_legacy_add_station_common); +EXPORT_SYMBOL(il_add_station_common); /** - * iwl_legacy_sta_ucode_deactivate - deactivate ucode status for a station + * il_sta_ucode_deactivate - deactivate ucode status for a station * - * priv->sta_lock must be held + * il->sta_lock must be held */ -static void iwl_legacy_sta_ucode_deactivate(struct iwl_priv *priv, u8 sta_id) +static void il_sta_ucode_deactivate(struct il_priv *il, u8 sta_id) { /* Ucode must be active and driver must be non active */ - if ((priv->stations[sta_id].used & - (IWL_STA_UCODE_ACTIVE | IWL_STA_DRIVER_ACTIVE)) != - IWL_STA_UCODE_ACTIVE) - IWL_ERR(priv, "removed non active STA %u\n", sta_id); + if ((il->stations[sta_id].used & + (IL_STA_UCODE_ACTIVE | IL_STA_DRIVER_ACTIVE)) != + IL_STA_UCODE_ACTIVE) + IL_ERR("removed non active STA %u\n", sta_id); - priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE; + il->stations[sta_id].used &= ~IL_STA_UCODE_ACTIVE; - memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry)); - IWL_DEBUG_ASSOC(priv, "Removed STA %u\n", sta_id); + memset(&il->stations[sta_id], 0, sizeof(struct il_station_entry)); + D_ASSOC("Removed STA %u\n", sta_id); } -static int iwl_legacy_send_remove_station(struct iwl_priv *priv, +static int il_send_remove_station(struct il_priv *il, const u8 *addr, int sta_id, bool temporary) { - struct iwl_rx_packet *pkt; + struct il_rx_pkt *pkt; int ret; unsigned long flags_spin; - struct iwl_rem_sta_cmd rm_sta_cmd; + struct il_rem_sta_cmd rm_sta_cmd; - struct iwl_host_cmd cmd = { - .id = REPLY_REMOVE_STA, - .len = sizeof(struct iwl_rem_sta_cmd), + struct il_host_cmd cmd = { + .id = C_REM_STA, + .len = sizeof(struct il_rem_sta_cmd), .flags = CMD_SYNC, .data = &rm_sta_cmd, }; @@ -434,14 +434,14 @@ static int iwl_legacy_send_remove_station(struct iwl_priv *priv, cmd.flags |= CMD_WANT_SKB; - ret = iwl_legacy_send_cmd(priv, &cmd); + ret = il_send_cmd(il, &cmd); if (ret) return ret; - pkt = (struct iwl_rx_packet *)cmd.reply_page; - if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { - IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n", + pkt = (struct il_rx_pkt *)cmd.reply_page; + if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { + IL_ERR("Bad return from C_REM_STA (0x%08X)\n", pkt->hdr.flags); ret = -EIO; } @@ -450,34 +450,34 @@ static int iwl_legacy_send_remove_station(struct iwl_priv *priv, switch (pkt->u.rem_sta.status) { case REM_STA_SUCCESS_MSK: if (!temporary) { - spin_lock_irqsave(&priv->sta_lock, flags_spin); - iwl_legacy_sta_ucode_deactivate(priv, sta_id); - spin_unlock_irqrestore(&priv->sta_lock, + spin_lock_irqsave(&il->sta_lock, flags_spin); + il_sta_ucode_deactivate(il, sta_id); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); } - IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n"); + D_ASSOC("C_REM_STA PASSED\n"); break; default: ret = -EIO; - IWL_ERR(priv, "REPLY_REMOVE_STA failed\n"); + IL_ERR("C_REM_STA failed\n"); break; } } - iwl_legacy_free_pages(priv, cmd.reply_page); + il_free_pages(il, cmd.reply_page); return ret; } /** - * iwl_legacy_remove_station - Remove driver's knowledge of station. + * il_remove_station - Remove driver's knowledge of station. */ -int iwl_legacy_remove_station(struct iwl_priv *priv, const u8 sta_id, +int il_remove_station(struct il_priv *il, const u8 sta_id, const u8 *addr) { unsigned long flags; - if (!iwl_legacy_is_ready(priv)) { - IWL_DEBUG_INFO(priv, + if (!il_is_ready(il)) { + D_INFO( "Unable to remove station %pM, device not ready.\n", addr); /* @@ -488,85 +488,85 @@ int iwl_legacy_remove_station(struct iwl_priv *priv, const u8 sta_id, return 0; } - IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n", + D_ASSOC("Removing STA from driver:%d %pM\n", sta_id, addr); - if (WARN_ON(sta_id == IWL_INVALID_STATION)) + if (WARN_ON(sta_id == IL_INVALID_STATION)) return -EINVAL; - spin_lock_irqsave(&priv->sta_lock, flags); + spin_lock_irqsave(&il->sta_lock, flags); - if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) { - IWL_DEBUG_INFO(priv, "Removing %pM but non DRIVER active\n", + if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) { + D_INFO("Removing %pM but non DRIVER active\n", addr); goto out_err; } - if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { - IWL_DEBUG_INFO(priv, "Removing %pM but non UCODE active\n", + if (!(il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) { + D_INFO("Removing %pM but non UCODE active\n", addr); goto out_err; } - if (priv->stations[sta_id].used & IWL_STA_LOCAL) { - kfree(priv->stations[sta_id].lq); - priv->stations[sta_id].lq = NULL; + if (il->stations[sta_id].used & IL_STA_LOCAL) { + kfree(il->stations[sta_id].lq); + il->stations[sta_id].lq = NULL; } - priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; + il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE; - priv->num_stations--; + il->num_stations--; - BUG_ON(priv->num_stations < 0); + BUG_ON(il->num_stations < 0); - spin_unlock_irqrestore(&priv->sta_lock, flags); + spin_unlock_irqrestore(&il->sta_lock, flags); - return iwl_legacy_send_remove_station(priv, addr, sta_id, false); + return il_send_remove_station(il, addr, sta_id, false); out_err: - spin_unlock_irqrestore(&priv->sta_lock, flags); + spin_unlock_irqrestore(&il->sta_lock, flags); return -EINVAL; } -EXPORT_SYMBOL_GPL(iwl_legacy_remove_station); +EXPORT_SYMBOL_GPL(il_remove_station); /** - * iwl_legacy_clear_ucode_stations - clear ucode station table bits + * il_clear_ucode_stations - clear ucode station table bits * * This function clears all the bits in the driver indicating * which stations are active in the ucode. Call when something * other than explicit station management would cause this in * the ucode, e.g. unassociated RXON. */ -void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv, - struct iwl_rxon_context *ctx) +void il_clear_ucode_stations(struct il_priv *il, + struct il_rxon_context *ctx) { int i; unsigned long flags_spin; bool cleared = false; - IWL_DEBUG_INFO(priv, "Clearing ucode stations in driver\n"); + D_INFO("Clearing ucode stations in driver\n"); - spin_lock_irqsave(&priv->sta_lock, flags_spin); - for (i = 0; i < priv->hw_params.max_stations; i++) { - if (ctx && ctx->ctxid != priv->stations[i].ctxid) + spin_lock_irqsave(&il->sta_lock, flags_spin); + for (i = 0; i < il->hw_params.max_stations; i++) { + if (ctx && ctx->ctxid != il->stations[i].ctxid) continue; - if (priv->stations[i].used & IWL_STA_UCODE_ACTIVE) { - IWL_DEBUG_INFO(priv, + if (il->stations[i].used & IL_STA_UCODE_ACTIVE) { + D_INFO( "Clearing ucode active for station %d\n", i); - priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE; + il->stations[i].used &= ~IL_STA_UCODE_ACTIVE; cleared = true; } } - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); if (!cleared) - IWL_DEBUG_INFO(priv, + D_INFO( "No active stations found to be cleared\n"); } -EXPORT_SYMBOL(iwl_legacy_clear_ucode_stations); +EXPORT_SYMBOL(il_clear_ucode_stations); /** - * iwl_legacy_restore_stations() - Restore driver known stations to device + * il_restore_stations() - Restore driver known stations to device * * All stations considered active by driver, but not present in ucode, is * restored. @@ -574,58 +574,58 @@ EXPORT_SYMBOL(iwl_legacy_clear_ucode_stations); * Function sleeps. */ void -iwl_legacy_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) +il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx) { - struct iwl_legacy_addsta_cmd sta_cmd; - struct iwl_link_quality_cmd lq; + struct il_addsta_cmd sta_cmd; + struct il_link_quality_cmd lq; unsigned long flags_spin; int i; bool found = false; int ret; bool send_lq; - if (!iwl_legacy_is_ready(priv)) { - IWL_DEBUG_INFO(priv, + if (!il_is_ready(il)) { + D_INFO( "Not ready yet, not restoring any stations.\n"); return; } - IWL_DEBUG_ASSOC(priv, "Restoring all known stations ... start.\n"); - spin_lock_irqsave(&priv->sta_lock, flags_spin); - for (i = 0; i < priv->hw_params.max_stations; i++) { - if (ctx->ctxid != priv->stations[i].ctxid) + D_ASSOC("Restoring all known stations ... start.\n"); + spin_lock_irqsave(&il->sta_lock, flags_spin); + for (i = 0; i < il->hw_params.max_stations; i++) { + if (ctx->ctxid != il->stations[i].ctxid) continue; - if ((priv->stations[i].used & IWL_STA_DRIVER_ACTIVE) && - !(priv->stations[i].used & IWL_STA_UCODE_ACTIVE)) { - IWL_DEBUG_ASSOC(priv, "Restoring sta %pM\n", - priv->stations[i].sta.sta.addr); - priv->stations[i].sta.mode = 0; - priv->stations[i].used |= IWL_STA_UCODE_INPROGRESS; + if ((il->stations[i].used & IL_STA_DRIVER_ACTIVE) && + !(il->stations[i].used & IL_STA_UCODE_ACTIVE)) { + D_ASSOC("Restoring sta %pM\n", + il->stations[i].sta.sta.addr); + il->stations[i].sta.mode = 0; + il->stations[i].used |= IL_STA_UCODE_INPROGRESS; found = true; } } - for (i = 0; i < priv->hw_params.max_stations; i++) { - if ((priv->stations[i].used & IWL_STA_UCODE_INPROGRESS)) { - memcpy(&sta_cmd, &priv->stations[i].sta, - sizeof(struct iwl_legacy_addsta_cmd)); + for (i = 0; i < il->hw_params.max_stations; i++) { + if ((il->stations[i].used & IL_STA_UCODE_INPROGRESS)) { + memcpy(&sta_cmd, &il->stations[i].sta, + sizeof(struct il_addsta_cmd)); send_lq = false; - if (priv->stations[i].lq) { - memcpy(&lq, priv->stations[i].lq, - sizeof(struct iwl_link_quality_cmd)); + if (il->stations[i].lq) { + memcpy(&lq, il->stations[i].lq, + sizeof(struct il_link_quality_cmd)); send_lq = true; } - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); - ret = iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); + ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC); if (ret) { - spin_lock_irqsave(&priv->sta_lock, flags_spin); - IWL_ERR(priv, "Adding station %pM failed.\n", - priv->stations[i].sta.sta.addr); - priv->stations[i].used &= - ~IWL_STA_DRIVER_ACTIVE; - priv->stations[i].used &= - ~IWL_STA_UCODE_INPROGRESS; - spin_unlock_irqrestore(&priv->sta_lock, + spin_lock_irqsave(&il->sta_lock, flags_spin); + IL_ERR("Adding station %pM failed.\n", + il->stations[i].sta.sta.addr); + il->stations[i].used &= + ~IL_STA_DRIVER_ACTIVE; + il->stations[i].used &= + ~IL_STA_UCODE_INPROGRESS; + spin_unlock_irqrestore(&il->sta_lock, flags_spin); } /* @@ -633,78 +633,78 @@ iwl_legacy_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) * current LQ command */ if (send_lq) - iwl_legacy_send_lq_cmd(priv, ctx, &lq, + il_send_lq_cmd(il, ctx, &lq, CMD_SYNC, true); - spin_lock_irqsave(&priv->sta_lock, flags_spin); - priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS; + spin_lock_irqsave(&il->sta_lock, flags_spin); + il->stations[i].used &= ~IL_STA_UCODE_INPROGRESS; } } - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); if (!found) - IWL_DEBUG_INFO(priv, "Restoring all known stations" + D_INFO("Restoring all known stations" " .... no stations to be restored.\n"); else - IWL_DEBUG_INFO(priv, "Restoring all known stations" + D_INFO("Restoring all known stations" " .... complete.\n"); } -EXPORT_SYMBOL(iwl_legacy_restore_stations); +EXPORT_SYMBOL(il_restore_stations); -int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv) +int il_get_free_ucode_key_idx(struct il_priv *il) { int i; - for (i = 0; i < priv->sta_key_max_num; i++) - if (!test_and_set_bit(i, &priv->ucode_key_table)) + for (i = 0; i < il->sta_key_max_num; i++) + if (!test_and_set_bit(i, &il->ucode_key_table)) return i; return WEP_INVALID_OFFSET; } -EXPORT_SYMBOL(iwl_legacy_get_free_ucode_key_index); +EXPORT_SYMBOL(il_get_free_ucode_key_idx); -void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv) +void il_dealloc_bcast_stations(struct il_priv *il) { unsigned long flags; int i; - spin_lock_irqsave(&priv->sta_lock, flags); - for (i = 0; i < priv->hw_params.max_stations; i++) { - if (!(priv->stations[i].used & IWL_STA_BCAST)) + spin_lock_irqsave(&il->sta_lock, flags); + for (i = 0; i < il->hw_params.max_stations; i++) { + if (!(il->stations[i].used & IL_STA_BCAST)) continue; - priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE; - priv->num_stations--; - BUG_ON(priv->num_stations < 0); - kfree(priv->stations[i].lq); - priv->stations[i].lq = NULL; + il->stations[i].used &= ~IL_STA_UCODE_ACTIVE; + il->num_stations--; + BUG_ON(il->num_stations < 0); + kfree(il->stations[i].lq); + il->stations[i].lq = NULL; } - spin_unlock_irqrestore(&priv->sta_lock, flags); + spin_unlock_irqrestore(&il->sta_lock, flags); } -EXPORT_SYMBOL_GPL(iwl_legacy_dealloc_bcast_stations); +EXPORT_SYMBOL_GPL(il_dealloc_bcast_stations); -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -static void iwl_legacy_dump_lq_cmd(struct iwl_priv *priv, - struct iwl_link_quality_cmd *lq) +#ifdef CONFIG_IWLEGACY_DEBUG +static void il_dump_lq_cmd(struct il_priv *il, + struct il_link_quality_cmd *lq) { int i; - IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id); - IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n", + D_RATE("lq station id 0x%x\n", lq->sta_id); + D_RATE("lq ant 0x%X 0x%X\n", lq->general_params.single_stream_ant_msk, lq->general_params.dual_stream_ant_msk); for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) - IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n", + D_RATE("lq idx %d 0x%X\n", i, lq->rs_table[i].rate_n_flags); } #else -static inline void iwl_legacy_dump_lq_cmd(struct iwl_priv *priv, - struct iwl_link_quality_cmd *lq) +static inline void il_dump_lq_cmd(struct il_priv *il, + struct il_link_quality_cmd *lq) { } #endif /** - * iwl_legacy_is_lq_table_valid() - Test one aspect of LQ cmd for validity + * il_is_lq_table_valid() - Test one aspect of LQ cmd for validity * * It sometimes happens when a HT rate has been in use and we * loose connectivity with AP then mac80211 will first tell us that the @@ -714,22 +714,22 @@ static inline void iwl_legacy_dump_lq_cmd(struct iwl_priv *priv, * Test for this to prevent driver from sending LQ command between the time * RXON flags are updated and when LQ command is updated. */ -static bool iwl_legacy_is_lq_table_valid(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct iwl_link_quality_cmd *lq) +static bool il_is_lq_table_valid(struct il_priv *il, + struct il_rxon_context *ctx, + struct il_link_quality_cmd *lq) { int i; if (ctx->ht.enabled) return true; - IWL_DEBUG_INFO(priv, "Channel %u is not an HT channel\n", + D_INFO("Channel %u is not an HT channel\n", ctx->active.channel); for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { if (le32_to_cpu(lq->rs_table[i].rate_n_flags) & RATE_MCS_HT_MSK) { - IWL_DEBUG_INFO(priv, - "index %d of LQ expects HT channel\n", + D_INFO( + "idx %d of LQ expects HT channel\n", i); return false; } @@ -738,7 +738,7 @@ static bool iwl_legacy_is_lq_table_valid(struct iwl_priv *priv, } /** - * iwl_legacy_send_lq_cmd() - Send link quality command + * il_send_lq_cmd() - Send link quality command * @init: This command is sent as part of station initialization right * after station has been added. * @@ -747,35 +747,35 @@ static bool iwl_legacy_is_lq_table_valid(struct iwl_priv *priv, * this case to clear the state indicating that station creation is in * progress. */ -int iwl_legacy_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, - struct iwl_link_quality_cmd *lq, u8 flags, bool init) +int il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx, + struct il_link_quality_cmd *lq, u8 flags, bool init) { int ret = 0; unsigned long flags_spin; - struct iwl_host_cmd cmd = { - .id = REPLY_TX_LINK_QUALITY_CMD, - .len = sizeof(struct iwl_link_quality_cmd), + struct il_host_cmd cmd = { + .id = C_TX_LINK_QUALITY_CMD, + .len = sizeof(struct il_link_quality_cmd), .flags = flags, .data = lq, }; - if (WARN_ON(lq->sta_id == IWL_INVALID_STATION)) + if (WARN_ON(lq->sta_id == IL_INVALID_STATION)) return -EINVAL; - spin_lock_irqsave(&priv->sta_lock, flags_spin); - if (!(priv->stations[lq->sta_id].used & IWL_STA_DRIVER_ACTIVE)) { - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_lock_irqsave(&il->sta_lock, flags_spin); + if (!(il->stations[lq->sta_id].used & IL_STA_DRIVER_ACTIVE)) { + spin_unlock_irqrestore(&il->sta_lock, flags_spin); return -EINVAL; } - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_unlock_irqrestore(&il->sta_lock, flags_spin); - iwl_legacy_dump_lq_cmd(priv, lq); + il_dump_lq_cmd(il, lq); BUG_ON(init && (cmd.flags & CMD_ASYNC)); - if (iwl_legacy_is_lq_table_valid(priv, ctx, lq)) - ret = iwl_legacy_send_cmd(priv, &cmd); + if (il_is_lq_table_valid(il, ctx, lq)) + ret = il_send_cmd(il, &cmd); else ret = -EINVAL; @@ -783,35 +783,35 @@ int iwl_legacy_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, return ret; if (init) { - IWL_DEBUG_INFO(priv, "init LQ command complete," + D_INFO("init LQ command complete," " clearing sta addition status for sta %d\n", lq->sta_id); - spin_lock_irqsave(&priv->sta_lock, flags_spin); - priv->stations[lq->sta_id].used &= ~IWL_STA_UCODE_INPROGRESS; - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); + spin_lock_irqsave(&il->sta_lock, flags_spin); + il->stations[lq->sta_id].used &= ~IL_STA_UCODE_INPROGRESS; + spin_unlock_irqrestore(&il->sta_lock, flags_spin); } return ret; } -EXPORT_SYMBOL(iwl_legacy_send_lq_cmd); +EXPORT_SYMBOL(il_send_lq_cmd); -int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw, +int il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { - struct iwl_priv *priv = hw->priv; - struct iwl_station_priv_common *sta_common = (void *)sta->drv_priv; + struct il_priv *il = hw->priv; + struct il_station_priv_common *sta_common = (void *)sta->drv_priv; int ret; - IWL_DEBUG_INFO(priv, "received request to remove station %pM\n", + D_INFO("received request to remove station %pM\n", sta->addr); - mutex_lock(&priv->mutex); - IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", + mutex_lock(&il->mutex); + D_INFO("proceeding to remove station %pM\n", sta->addr); - ret = iwl_legacy_remove_station(priv, sta_common->sta_id, sta->addr); + ret = il_remove_station(il, sta_common->sta_id, sta->addr); if (ret) - IWL_ERR(priv, "Error removing station %pM\n", + IL_ERR("Error removing station %pM\n", sta->addr); - mutex_unlock(&priv->mutex); + mutex_unlock(&il->mutex); return ret; } -EXPORT_SYMBOL(iwl_legacy_mac_sta_remove); +EXPORT_SYMBOL(il_mac_sta_remove); diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.h b/drivers/net/wireless/iwlegacy/iwl-sta.h deleted file mode 100644 index 67bd75fe01a1..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-sta.h +++ /dev/null @@ -1,148 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ -#ifndef __iwl_legacy_sta_h__ -#define __iwl_legacy_sta_h__ - -#include "iwl-dev.h" - -#define HW_KEY_DYNAMIC 0 -#define HW_KEY_DEFAULT 1 - -#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ -#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ -#define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of - being activated */ -#define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211; - (this is for the IBSS BSSID stations) */ -#define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */ - - -void iwl_legacy_restore_stations(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); -void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv); -int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv); -int iwl_legacy_send_add_sta(struct iwl_priv *priv, - struct iwl_legacy_addsta_cmd *sta, u8 flags); -int iwl_legacy_add_station_common(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - const u8 *addr, bool is_ap, - struct ieee80211_sta *sta, u8 *sta_id_r); -int iwl_legacy_remove_station(struct iwl_priv *priv, - const u8 sta_id, - const u8 *addr); -int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_sta *sta); - -u8 iwl_legacy_prep_station(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - const u8 *addr, bool is_ap, - struct ieee80211_sta *sta); - -int iwl_legacy_send_lq_cmd(struct iwl_priv *priv, - struct iwl_rxon_context *ctx, - struct iwl_link_quality_cmd *lq, - u8 flags, bool init); - -/** - * iwl_legacy_clear_driver_stations - clear knowledge of all stations from driver - * @priv: iwl priv struct - * - * This is called during iwl_down() to make sure that in the case - * we're coming there from a hardware restart mac80211 will be - * able to reconfigure stations -- if we're getting there in the - * normal down flow then the stations will already be cleared. - */ -static inline void iwl_legacy_clear_driver_stations(struct iwl_priv *priv) -{ - unsigned long flags; - struct iwl_rxon_context *ctx; - - spin_lock_irqsave(&priv->sta_lock, flags); - memset(priv->stations, 0, sizeof(priv->stations)); - priv->num_stations = 0; - - priv->ucode_key_table = 0; - - for_each_context(priv, ctx) { - /* - * Remove all key information that is not stored as part - * of station information since mac80211 may not have had - * a chance to remove all the keys. When device is - * reconfigured by mac80211 after an error all keys will - * be reconfigured. - */ - memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); - ctx->key_mapping_keys = 0; - } - - spin_unlock_irqrestore(&priv->sta_lock, flags); -} - -static inline int iwl_legacy_sta_id(struct ieee80211_sta *sta) -{ - if (WARN_ON(!sta)) - return IWL_INVALID_STATION; - - return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id; -} - -/** - * iwl_legacy_sta_id_or_broadcast - return sta_id or broadcast sta - * @priv: iwl priv - * @context: the current context - * @sta: mac80211 station - * - * In certain circumstances mac80211 passes a station pointer - * that may be %NULL, for example during TX or key setup. In - * that case, we need to use the broadcast station, so this - * inline wraps that pattern. - */ -static inline int iwl_legacy_sta_id_or_broadcast(struct iwl_priv *priv, - struct iwl_rxon_context *context, - struct ieee80211_sta *sta) -{ - int sta_id; - - if (!sta) - return context->bcast_sta_id; - - sta_id = iwl_legacy_sta_id(sta); - - /* - * mac80211 should not be passing a partially - * initialised station! - */ - WARN_ON(sta_id == IWL_INVALID_STATION); - - return sta_id; -} -#endif /* __iwl_legacy_sta_h__ */ diff --git a/drivers/net/wireless/iwlegacy/iwl-tx.c b/drivers/net/wireless/iwlegacy/iwl-tx.c deleted file mode 100644 index c0dfb1a4e968..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl-tx.c +++ /dev/null @@ -1,659 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include <linux/etherdevice.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/export.h> -#include <net/mac80211.h> -#include "iwl-eeprom.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-sta.h" -#include "iwl-io.h" -#include "iwl-helpers.h" - -/** - * iwl_legacy_txq_update_write_ptr - Send new write index to hardware - */ -void -iwl_legacy_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq) -{ - u32 reg = 0; - int txq_id = txq->q.id; - - if (txq->need_update == 0) - return; - - /* if we're trying to save power */ - if (test_bit(STATUS_POWER_PMI, &priv->status)) { - /* wake up nic if it's powered down ... - * uCode will wake up, and interrupt us again, so next - * time we'll skip this part. */ - reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); - - if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO(priv, - "Tx queue %d requesting wakeup," - " GP1 = 0x%x\n", txq_id, reg); - iwl_legacy_set_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - return; - } - - iwl_legacy_write_direct32(priv, HBUS_TARG_WRPTR, - txq->q.write_ptr | (txq_id << 8)); - - /* - * else not in power-save mode, - * uCode will never sleep when we're - * trying to tx (during RFKILL, we're not trying to tx). - */ - } else - iwl_write32(priv, HBUS_TARG_WRPTR, - txq->q.write_ptr | (txq_id << 8)); - txq->need_update = 0; -} -EXPORT_SYMBOL(iwl_legacy_txq_update_write_ptr); - -/** - * iwl_legacy_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's - */ -void iwl_legacy_tx_queue_unmap(struct iwl_priv *priv, int txq_id) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl_queue *q = &txq->q; - - if (q->n_bd == 0) - return; - - while (q->write_ptr != q->read_ptr) { - priv->cfg->ops->lib->txq_free_tfd(priv, txq); - q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd); - } -} -EXPORT_SYMBOL(iwl_legacy_tx_queue_unmap); - -/** - * iwl_legacy_tx_queue_free - Deallocate DMA queue. - * @txq: Transmit queue to deallocate. - * - * Empty queue by removing and destroying all BD's. - * Free all buffers. - * 0-fill, but do not free "txq" descriptor structure. - */ -void iwl_legacy_tx_queue_free(struct iwl_priv *priv, int txq_id) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct device *dev = &priv->pci_dev->dev; - int i; - - iwl_legacy_tx_queue_unmap(priv, txq_id); - - /* De-alloc array of command/tx buffers */ - for (i = 0; i < TFD_TX_CMD_SLOTS; i++) - kfree(txq->cmd[i]); - - /* De-alloc circular buffer of TFDs */ - if (txq->q.n_bd) - dma_free_coherent(dev, priv->hw_params.tfd_size * - txq->q.n_bd, txq->tfds, txq->q.dma_addr); - - /* De-alloc array of per-TFD driver data */ - kfree(txq->txb); - txq->txb = NULL; - - /* deallocate arrays */ - kfree(txq->cmd); - kfree(txq->meta); - txq->cmd = NULL; - txq->meta = NULL; - - /* 0-fill queue descriptor structure */ - memset(txq, 0, sizeof(*txq)); -} -EXPORT_SYMBOL(iwl_legacy_tx_queue_free); - -/** - * iwl_cmd_queue_unmap - Unmap any remaining DMA mappings from command queue - */ -void iwl_legacy_cmd_queue_unmap(struct iwl_priv *priv) -{ - struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; - struct iwl_queue *q = &txq->q; - int i; - - if (q->n_bd == 0) - return; - - while (q->read_ptr != q->write_ptr) { - i = iwl_legacy_get_cmd_index(q, q->read_ptr, 0); - - if (txq->meta[i].flags & CMD_MAPPED) { - pci_unmap_single(priv->pci_dev, - dma_unmap_addr(&txq->meta[i], mapping), - dma_unmap_len(&txq->meta[i], len), - PCI_DMA_BIDIRECTIONAL); - txq->meta[i].flags = 0; - } - - q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd); - } - - i = q->n_window; - if (txq->meta[i].flags & CMD_MAPPED) { - pci_unmap_single(priv->pci_dev, - dma_unmap_addr(&txq->meta[i], mapping), - dma_unmap_len(&txq->meta[i], len), - PCI_DMA_BIDIRECTIONAL); - txq->meta[i].flags = 0; - } -} -EXPORT_SYMBOL(iwl_legacy_cmd_queue_unmap); - -/** - * iwl_legacy_cmd_queue_free - Deallocate DMA queue. - * @txq: Transmit queue to deallocate. - * - * Empty queue by removing and destroying all BD's. - * Free all buffers. - * 0-fill, but do not free "txq" descriptor structure. - */ -void iwl_legacy_cmd_queue_free(struct iwl_priv *priv) -{ - struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; - struct device *dev = &priv->pci_dev->dev; - int i; - - iwl_legacy_cmd_queue_unmap(priv); - - /* De-alloc array of command/tx buffers */ - for (i = 0; i <= TFD_CMD_SLOTS; i++) - kfree(txq->cmd[i]); - - /* De-alloc circular buffer of TFDs */ - if (txq->q.n_bd) - dma_free_coherent(dev, priv->hw_params.tfd_size * txq->q.n_bd, - txq->tfds, txq->q.dma_addr); - - /* deallocate arrays */ - kfree(txq->cmd); - kfree(txq->meta); - txq->cmd = NULL; - txq->meta = NULL; - - /* 0-fill queue descriptor structure */ - memset(txq, 0, sizeof(*txq)); -} -EXPORT_SYMBOL(iwl_legacy_cmd_queue_free); - -/*************** DMA-QUEUE-GENERAL-FUNCTIONS ***** - * DMA services - * - * Theory of operation - * - * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer - * of buffer descriptors, each of which points to one or more data buffers for - * the device to read from or fill. Driver and device exchange status of each - * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty - * entries in each circular buffer, to protect against confusing empty and full - * queue states. - * - * The device reads or writes the data in the queues via the device's several - * DMA/FIFO channels. Each queue is mapped to a single DMA channel. - * - * For Tx queue, there are low mark and high mark limits. If, after queuing - * the packet for Tx, free space become < low mark, Tx queue stopped. When - * reclaiming packets (on 'tx done IRQ), if free space become > high mark, - * Tx queue resumed. - * - * See more detailed info in iwl-4965-hw.h. - ***************************************************/ - -int iwl_legacy_queue_space(const struct iwl_queue *q) -{ - int s = q->read_ptr - q->write_ptr; - - if (q->read_ptr > q->write_ptr) - s -= q->n_bd; - - if (s <= 0) - s += q->n_window; - /* keep some reserve to not confuse empty and full situations */ - s -= 2; - if (s < 0) - s = 0; - return s; -} -EXPORT_SYMBOL(iwl_legacy_queue_space); - - -/** - * iwl_legacy_queue_init - Initialize queue's high/low-water and read/write indexes - */ -static int iwl_legacy_queue_init(struct iwl_priv *priv, struct iwl_queue *q, - int count, int slots_num, u32 id) -{ - q->n_bd = count; - q->n_window = slots_num; - q->id = id; - - /* count must be power-of-two size, otherwise iwl_legacy_queue_inc_wrap - * and iwl_legacy_queue_dec_wrap are broken. */ - BUG_ON(!is_power_of_2(count)); - - /* slots_num must be power-of-two size, otherwise - * iwl_legacy_get_cmd_index is broken. */ - BUG_ON(!is_power_of_2(slots_num)); - - q->low_mark = q->n_window / 4; - if (q->low_mark < 4) - q->low_mark = 4; - - q->high_mark = q->n_window / 8; - if (q->high_mark < 2) - q->high_mark = 2; - - q->write_ptr = q->read_ptr = 0; - - return 0; -} - -/** - * iwl_legacy_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue - */ -static int iwl_legacy_tx_queue_alloc(struct iwl_priv *priv, - struct iwl_tx_queue *txq, u32 id) -{ - struct device *dev = &priv->pci_dev->dev; - size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; - - /* Driver private data, only for Tx (not command) queues, - * not shared with device. */ - if (id != priv->cmd_queue) { - txq->txb = kzalloc(sizeof(txq->txb[0]) * - TFD_QUEUE_SIZE_MAX, GFP_KERNEL); - if (!txq->txb) { - IWL_ERR(priv, "kmalloc for auxiliary BD " - "structures failed\n"); - goto error; - } - } else { - txq->txb = NULL; - } - - /* Circular buffer of transmit frame descriptors (TFDs), - * shared with device */ - txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr, - GFP_KERNEL); - if (!txq->tfds) { - IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n", tfd_sz); - goto error; - } - txq->q.id = id; - - return 0; - - error: - kfree(txq->txb); - txq->txb = NULL; - - return -ENOMEM; -} - -/** - * iwl_legacy_tx_queue_init - Allocate and initialize one tx/cmd queue - */ -int iwl_legacy_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id) -{ - int i, len; - int ret; - int actual_slots = slots_num; - - /* - * Alloc buffer array for commands (Tx or other types of commands). - * For the command queue (#4/#9), allocate command space + one big - * command for scan, since scan command is very huge; the system will - * not have two scans at the same time, so only one is needed. - * For normal Tx queues (all other queues), no super-size command - * space is needed. - */ - if (txq_id == priv->cmd_queue) - actual_slots++; - - txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * actual_slots, - GFP_KERNEL); - txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * actual_slots, - GFP_KERNEL); - - if (!txq->meta || !txq->cmd) - goto out_free_arrays; - - len = sizeof(struct iwl_device_cmd); - for (i = 0; i < actual_slots; i++) { - /* only happens for cmd queue */ - if (i == slots_num) - len = IWL_MAX_CMD_SIZE; - - txq->cmd[i] = kmalloc(len, GFP_KERNEL); - if (!txq->cmd[i]) - goto err; - } - - /* Alloc driver data array and TFD circular buffer */ - ret = iwl_legacy_tx_queue_alloc(priv, txq, txq_id); - if (ret) - goto err; - - txq->need_update = 0; - - /* - * For the default queues 0-3, set up the swq_id - * already -- all others need to get one later - * (if they need one at all). - */ - if (txq_id < 4) - iwl_legacy_set_swq_id(txq, txq_id, txq_id); - - /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise - * iwl_legacy_queue_inc_wrap and iwl_legacy_queue_dec_wrap are broken. */ - BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); - - /* Initialize queue's high/low-water marks, and head/tail indexes */ - iwl_legacy_queue_init(priv, &txq->q, - TFD_QUEUE_SIZE_MAX, slots_num, txq_id); - - /* Tell device where to find queue */ - priv->cfg->ops->lib->txq_init(priv, txq); - - return 0; -err: - for (i = 0; i < actual_slots; i++) - kfree(txq->cmd[i]); -out_free_arrays: - kfree(txq->meta); - kfree(txq->cmd); - - return -ENOMEM; -} -EXPORT_SYMBOL(iwl_legacy_tx_queue_init); - -void iwl_legacy_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id) -{ - int actual_slots = slots_num; - - if (txq_id == priv->cmd_queue) - actual_slots++; - - memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * actual_slots); - - txq->need_update = 0; - - /* Initialize queue's high/low-water marks, and head/tail indexes */ - iwl_legacy_queue_init(priv, &txq->q, - TFD_QUEUE_SIZE_MAX, slots_num, txq_id); - - /* Tell device where to find queue */ - priv->cfg->ops->lib->txq_init(priv, txq); -} -EXPORT_SYMBOL(iwl_legacy_tx_queue_reset); - -/*************** HOST COMMAND QUEUE FUNCTIONS *****/ - -/** - * iwl_legacy_enqueue_hcmd - enqueue a uCode command - * @priv: device private data point - * @cmd: a point to the ucode command structure - * - * The function returns < 0 values to indicate the operation is - * failed. On success, it turns the index (> 0) of command in the - * command queue. - */ -int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; - struct iwl_queue *q = &txq->q; - struct iwl_device_cmd *out_cmd; - struct iwl_cmd_meta *out_meta; - dma_addr_t phys_addr; - unsigned long flags; - int len; - u32 idx; - u16 fix_size; - - cmd->len = priv->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len); - fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr)); - - /* If any of the command structures end up being larger than - * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then - * we will need to increase the size of the TFD entries - * Also, check to see if command buffer should not exceed the size - * of device_cmd and max_cmd_size. */ - BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) && - !(cmd->flags & CMD_SIZE_HUGE)); - BUG_ON(fix_size > IWL_MAX_CMD_SIZE); - - if (iwl_legacy_is_rfkill(priv) || iwl_legacy_is_ctkill(priv)) { - IWL_WARN(priv, "Not sending command - %s KILL\n", - iwl_legacy_is_rfkill(priv) ? "RF" : "CT"); - return -EIO; - } - - spin_lock_irqsave(&priv->hcmd_lock, flags); - - if (iwl_legacy_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) { - spin_unlock_irqrestore(&priv->hcmd_lock, flags); - - IWL_ERR(priv, "Restarting adapter due to command queue full\n"); - queue_work(priv->workqueue, &priv->restart); - return -ENOSPC; - } - - idx = iwl_legacy_get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE); - out_cmd = txq->cmd[idx]; - out_meta = &txq->meta[idx]; - - if (WARN_ON(out_meta->flags & CMD_MAPPED)) { - spin_unlock_irqrestore(&priv->hcmd_lock, flags); - return -ENOSPC; - } - - memset(out_meta, 0, sizeof(*out_meta)); /* re-initialize to NULL */ - out_meta->flags = cmd->flags | CMD_MAPPED; - if (cmd->flags & CMD_WANT_SKB) - out_meta->source = cmd; - if (cmd->flags & CMD_ASYNC) - out_meta->callback = cmd->callback; - - out_cmd->hdr.cmd = cmd->id; - memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len); - - /* At this point, the out_cmd now has all of the incoming cmd - * information */ - - out_cmd->hdr.flags = 0; - out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(priv->cmd_queue) | - INDEX_TO_SEQ(q->write_ptr)); - if (cmd->flags & CMD_SIZE_HUGE) - out_cmd->hdr.sequence |= SEQ_HUGE_FRAME; - len = sizeof(struct iwl_device_cmd); - if (idx == TFD_CMD_SLOTS) - len = IWL_MAX_CMD_SIZE; - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - switch (out_cmd->hdr.cmd) { - case REPLY_TX_LINK_QUALITY_CMD: - case SENSITIVITY_CMD: - IWL_DEBUG_HC_DUMP(priv, - "Sending command %s (#%x), seq: 0x%04X, " - "%d bytes at %d[%d]:%d\n", - iwl_legacy_get_cmd_string(out_cmd->hdr.cmd), - out_cmd->hdr.cmd, - le16_to_cpu(out_cmd->hdr.sequence), fix_size, - q->write_ptr, idx, priv->cmd_queue); - break; - default: - IWL_DEBUG_HC(priv, "Sending command %s (#%x), seq: 0x%04X, " - "%d bytes at %d[%d]:%d\n", - iwl_legacy_get_cmd_string(out_cmd->hdr.cmd), - out_cmd->hdr.cmd, - le16_to_cpu(out_cmd->hdr.sequence), fix_size, - q->write_ptr, idx, priv->cmd_queue); - } -#endif - txq->need_update = 1; - - if (priv->cfg->ops->lib->txq_update_byte_cnt_tbl) - /* Set up entry in queue's byte count circular buffer */ - priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0); - - phys_addr = pci_map_single(priv->pci_dev, &out_cmd->hdr, - fix_size, PCI_DMA_BIDIRECTIONAL); - dma_unmap_addr_set(out_meta, mapping, phys_addr); - dma_unmap_len_set(out_meta, len, fix_size); - - trace_iwlwifi_legacy_dev_hcmd(priv, &out_cmd->hdr, - fix_size, cmd->flags); - - priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, - phys_addr, fix_size, 1, - U32_PAD(cmd->len)); - - /* Increment and update queue's write index */ - q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd); - iwl_legacy_txq_update_write_ptr(priv, txq); - - spin_unlock_irqrestore(&priv->hcmd_lock, flags); - return idx; -} - -/** - * iwl_legacy_hcmd_queue_reclaim - Reclaim TX command queue entries already Tx'd - * - * When FW advances 'R' index, all entries between old and new 'R' index - * need to be reclaimed. As result, some free space forms. If there is - * enough free space (> low mark), wake the stack that feeds us. - */ -static void iwl_legacy_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id, - int idx, int cmd_idx) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl_queue *q = &txq->q; - int nfreed = 0; - - if ((idx >= q->n_bd) || (iwl_legacy_queue_used(q, idx) == 0)) { - IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, " - "is out of range [0-%d] %d %d.\n", txq_id, - idx, q->n_bd, q->write_ptr, q->read_ptr); - return; - } - - for (idx = iwl_legacy_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx; - q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) { - - if (nfreed++ > 0) { - IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", idx, - q->write_ptr, q->read_ptr); - queue_work(priv->workqueue, &priv->restart); - } - - } -} - -/** - * iwl_legacy_tx_cmd_complete - Pull unused buffers off the queue and reclaim them - * @rxb: Rx buffer to reclaim - * - * If an Rx buffer has an async callback associated with it the callback - * will be executed. The attached skb (if present) will only be freed - * if the callback returns 1 - */ -void -iwl_legacy_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - u16 sequence = le16_to_cpu(pkt->hdr.sequence); - int txq_id = SEQ_TO_QUEUE(sequence); - int index = SEQ_TO_INDEX(sequence); - int cmd_index; - bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME); - struct iwl_device_cmd *cmd; - struct iwl_cmd_meta *meta; - struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; - unsigned long flags; - - /* If a Tx command is being handled and it isn't in the actual - * command queue then there a command routing bug has been introduced - * in the queue management code. */ - if (WARN(txq_id != priv->cmd_queue, - "wrong command queue %d (should be %d), sequence 0x%X readp=%d writep=%d\n", - txq_id, priv->cmd_queue, sequence, - priv->txq[priv->cmd_queue].q.read_ptr, - priv->txq[priv->cmd_queue].q.write_ptr)) { - iwl_print_hex_error(priv, pkt, 32); - return; - } - - cmd_index = iwl_legacy_get_cmd_index(&txq->q, index, huge); - cmd = txq->cmd[cmd_index]; - meta = &txq->meta[cmd_index]; - - txq->time_stamp = jiffies; - - pci_unmap_single(priv->pci_dev, - dma_unmap_addr(meta, mapping), - dma_unmap_len(meta, len), - PCI_DMA_BIDIRECTIONAL); - - /* Input error checking is done when commands are added to queue. */ - if (meta->flags & CMD_WANT_SKB) { - meta->source->reply_page = (unsigned long)rxb_addr(rxb); - rxb->page = NULL; - } else if (meta->callback) - meta->callback(priv, cmd, pkt); - - spin_lock_irqsave(&priv->hcmd_lock, flags); - - iwl_legacy_hcmd_queue_reclaim(priv, txq_id, index, cmd_index); - - if (!(meta->flags & CMD_ASYNC)) { - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command %s\n", - iwl_legacy_get_cmd_string(cmd->hdr.cmd)); - wake_up(&priv->wait_command_queue); - } - - /* Mark as unmapped */ - meta->flags = 0; - - spin_unlock_irqrestore(&priv->hcmd_lock, flags); -} -EXPORT_SYMBOL(iwl_legacy_tx_cmd_complete); diff --git a/drivers/net/wireless/iwlegacy/iwl3945-base.c b/drivers/net/wireless/iwlegacy/iwl3945-base.c deleted file mode 100644 index b282d869a546..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl3945-base.c +++ /dev/null @@ -1,4016 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/pci-aspm.h> -#include <linux/slab.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/firmware.h> -#include <linux/etherdevice.h> -#include <linux/if_arp.h> - -#include <net/ieee80211_radiotap.h> -#include <net/mac80211.h> - -#include <asm/div64.h> - -#define DRV_NAME "iwl3945" - -#include "iwl-fh.h" -#include "iwl-3945-fh.h" -#include "iwl-commands.h" -#include "iwl-sta.h" -#include "iwl-3945.h" -#include "iwl-core.h" -#include "iwl-helpers.h" -#include "iwl-dev.h" -#include "iwl-spectrum.h" - -/* - * module name, copyright, version, etc. - */ - -#define DRV_DESCRIPTION \ -"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -#define VD "d" -#else -#define VD -#endif - -/* - * add "s" to indicate spectrum measurement included. - * we add it here to be consistent with previous releases in which - * this was configurable. - */ -#define DRV_VERSION IWLWIFI_VERSION VD "s" -#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation" -#define DRV_AUTHOR "<ilw@linux.intel.com>" - -MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); -MODULE_LICENSE("GPL"); - - /* module parameters */ -struct iwl_mod_params iwl3945_mod_params = { - .sw_crypto = 1, - .restart_fw = 1, - .disable_hw_scan = 1, - /* the rest are 0 by default */ -}; - -/** - * iwl3945_get_antenna_flags - Get antenna flags for RXON command - * @priv: eeprom and antenna fields are used to determine antenna flags - * - * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed - * iwl3945_mod_params.antenna specifies the antenna diversity mode: - * - * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself - * IWL_ANTENNA_MAIN - Force MAIN antenna - * IWL_ANTENNA_AUX - Force AUX antenna - */ -__le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv) -{ - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - - switch (iwl3945_mod_params.antenna) { - case IWL_ANTENNA_DIVERSITY: - return 0; - - case IWL_ANTENNA_MAIN: - if (eeprom->antenna_switch_type) - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; - - case IWL_ANTENNA_AUX: - if (eeprom->antenna_switch_type) - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; - } - - /* bad antenna selector value */ - IWL_ERR(priv, "Bad antenna selector value (0x%x)\n", - iwl3945_mod_params.antenna); - - return 0; /* "diversity" is default if error */ -} - -static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - unsigned long flags; - __le16 key_flags = 0; - int ret; - - key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); - key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); - - if (sta_id == priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id) - key_flags |= STA_KEY_MULTICAST_MSK; - - keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - keyconf->hw_key_idx = keyconf->keyidx; - key_flags &= ~STA_KEY_FLG_INVALID; - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].keyinfo.cipher = keyconf->cipher; - priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; - memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, - keyconf->keylen); - - memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, - keyconf->keylen); - - if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) - == STA_KEY_FLG_NO_ENC) - priv->stations[sta_id].sta.key.key_offset = - iwl_legacy_get_free_ucode_key_index(priv); - /* else, we are overriding an existing key => no need to allocated room - * in uCode. */ - - WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, - "no space for a new key"); - - priv->stations[sta_id].sta.key.key_flags = key_flags; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - - IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n"); - - ret = iwl_legacy_send_add_sta(priv, - &priv->stations[sta_id].sta, CMD_ASYNC); - - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return ret; -} - -static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - return -EOPNOTSUPP; -} - -static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv, - struct ieee80211_key_conf *keyconf, - u8 sta_id) -{ - return -EOPNOTSUPP; -} - -static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id) -{ - unsigned long flags; - struct iwl_legacy_addsta_cmd sta_cmd; - - spin_lock_irqsave(&priv->sta_lock, flags); - memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key)); - memset(&priv->stations[sta_id].sta.key, 0, - sizeof(struct iwl4965_keyinfo)); - priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; - priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_legacy_addsta_cmd)); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n"); - return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC); -} - -static int iwl3945_set_dynamic_key(struct iwl_priv *priv, - struct ieee80211_key_conf *keyconf, u8 sta_id) -{ - int ret = 0; - - keyconf->hw_key_idx = HW_KEY_DYNAMIC; - - switch (keyconf->cipher) { - case WLAN_CIPHER_SUITE_CCMP: - ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); - break; - case WLAN_CIPHER_SUITE_TKIP: - ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id); - break; - case WLAN_CIPHER_SUITE_WEP40: - case WLAN_CIPHER_SUITE_WEP104: - ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id); - break; - default: - IWL_ERR(priv, "Unknown alg: %s alg=%x\n", __func__, - keyconf->cipher); - ret = -EINVAL; - } - - IWL_DEBUG_WEP(priv, "Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n", - keyconf->cipher, keyconf->keylen, keyconf->keyidx, - sta_id, ret); - - return ret; -} - -static int iwl3945_remove_static_key(struct iwl_priv *priv) -{ - int ret = -EOPNOTSUPP; - - return ret; -} - -static int iwl3945_set_static_key(struct iwl_priv *priv, - struct ieee80211_key_conf *key) -{ - if (key->cipher == WLAN_CIPHER_SUITE_WEP40 || - key->cipher == WLAN_CIPHER_SUITE_WEP104) - return -EOPNOTSUPP; - - IWL_ERR(priv, "Static key invalid: cipher %x\n", key->cipher); - return -EINVAL; -} - -static void iwl3945_clear_free_frames(struct iwl_priv *priv) -{ - struct list_head *element; - - IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", - priv->frames_count); - - while (!list_empty(&priv->free_frames)) { - element = priv->free_frames.next; - list_del(element); - kfree(list_entry(element, struct iwl3945_frame, list)); - priv->frames_count--; - } - - if (priv->frames_count) { - IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", - priv->frames_count); - priv->frames_count = 0; - } -} - -static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv) -{ - struct iwl3945_frame *frame; - struct list_head *element; - if (list_empty(&priv->free_frames)) { - frame = kzalloc(sizeof(*frame), GFP_KERNEL); - if (!frame) { - IWL_ERR(priv, "Could not allocate frame!\n"); - return NULL; - } - - priv->frames_count++; - return frame; - } - - element = priv->free_frames.next; - list_del(element); - return list_entry(element, struct iwl3945_frame, list); -} - -static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame) -{ - memset(frame, 0, sizeof(*frame)); - list_add(&frame->list, &priv->free_frames); -} - -unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, - int left) -{ - - if (!iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS) || !priv->beacon_skb) - return 0; - - if (priv->beacon_skb->len > left) - return 0; - - memcpy(hdr, priv->beacon_skb->data, priv->beacon_skb->len); - - return priv->beacon_skb->len; -} - -static int iwl3945_send_beacon_cmd(struct iwl_priv *priv) -{ - struct iwl3945_frame *frame; - unsigned int frame_size; - int rc; - u8 rate; - - frame = iwl3945_get_free_frame(priv); - - if (!frame) { - IWL_ERR(priv, "Could not obtain free frame buffer for beacon " - "command.\n"); - return -ENOMEM; - } - - rate = iwl_legacy_get_lowest_plcp(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); - - frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); - - rc = iwl_legacy_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, - &frame->u.cmd[0]); - - iwl3945_free_frame(priv, frame); - - return rc; -} - -static void iwl3945_unset_hw_params(struct iwl_priv *priv) -{ - if (priv->_3945.shared_virt) - dma_free_coherent(&priv->pci_dev->dev, - sizeof(struct iwl3945_shared), - priv->_3945.shared_virt, - priv->_3945.shared_phys); -} - -static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv, - struct ieee80211_tx_info *info, - struct iwl_device_cmd *cmd, - struct sk_buff *skb_frag, - int sta_id) -{ - struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; - struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo; - - tx_cmd->sec_ctl = 0; - - switch (keyinfo->cipher) { - case WLAN_CIPHER_SUITE_CCMP: - tx_cmd->sec_ctl = TX_CMD_SEC_CCM; - memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen); - IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n"); - break; - - case WLAN_CIPHER_SUITE_TKIP: - break; - - case WLAN_CIPHER_SUITE_WEP104: - tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; - /* fall through */ - case WLAN_CIPHER_SUITE_WEP40: - tx_cmd->sec_ctl |= TX_CMD_SEC_WEP | - (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; - - memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen); - - IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption " - "with key %d\n", info->control.hw_key->hw_key_idx); - break; - - default: - IWL_ERR(priv, "Unknown encode cipher %x\n", keyinfo->cipher); - break; - } -} - -/* - * handle build REPLY_TX command notification. - */ -static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv, - struct iwl_device_cmd *cmd, - struct ieee80211_tx_info *info, - struct ieee80211_hdr *hdr, u8 std_id) -{ - struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; - __le32 tx_flags = tx_cmd->tx_flags; - __le16 fc = hdr->frame_control; - - tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { - tx_flags |= TX_CMD_FLG_ACK_MSK; - if (ieee80211_is_mgmt(fc)) - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - if (ieee80211_is_probe_resp(fc) && - !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) - tx_flags |= TX_CMD_FLG_TSF_MSK; - } else { - tx_flags &= (~TX_CMD_FLG_ACK_MSK); - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - } - - tx_cmd->sta_id = std_id; - if (ieee80211_has_morefrags(fc)) - tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; - - if (ieee80211_is_data_qos(fc)) { - u8 *qc = ieee80211_get_qos_ctl(hdr); - tx_cmd->tid_tspec = qc[0] & 0xf; - tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; - } else { - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - } - - iwl_legacy_tx_cmd_protection(priv, info, fc, &tx_flags); - - tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); - if (ieee80211_is_mgmt(fc)) { - if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) - tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); - else - tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); - } else { - tx_cmd->timeout.pm_frame_timeout = 0; - } - - tx_cmd->driver_txop = 0; - tx_cmd->tx_flags = tx_flags; - tx_cmd->next_frame_len = 0; -} - -/* - * start REPLY_TX command process - */ -static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct iwl3945_tx_cmd *tx_cmd; - struct iwl_tx_queue *txq = NULL; - struct iwl_queue *q = NULL; - struct iwl_device_cmd *out_cmd; - struct iwl_cmd_meta *out_meta; - dma_addr_t phys_addr; - dma_addr_t txcmd_phys; - int txq_id = skb_get_queue_mapping(skb); - u16 len, idx, hdr_len; - u8 id; - u8 unicast; - u8 sta_id; - u8 tid = 0; - __le16 fc; - u8 wait_write_ptr = 0; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - if (iwl_legacy_is_rfkill(priv)) { - IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n"); - goto drop_unlock; - } - - if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { - IWL_ERR(priv, "ERROR: No TX rate available.\n"); - goto drop_unlock; - } - - unicast = !is_multicast_ether_addr(hdr->addr1); - id = 0; - - fc = hdr->frame_control; - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (ieee80211_is_auth(fc)) - IWL_DEBUG_TX(priv, "Sending AUTH frame\n"); - else if (ieee80211_is_assoc_req(fc)) - IWL_DEBUG_TX(priv, "Sending ASSOC frame\n"); - else if (ieee80211_is_reassoc_req(fc)) - IWL_DEBUG_TX(priv, "Sending REASSOC frame\n"); -#endif - - spin_unlock_irqrestore(&priv->lock, flags); - - hdr_len = ieee80211_hdrlen(fc); - - /* Find index into station table for destination station */ - sta_id = iwl_legacy_sta_id_or_broadcast( - priv, &priv->contexts[IWL_RXON_CTX_BSS], - info->control.sta); - if (sta_id == IWL_INVALID_STATION) { - IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", - hdr->addr1); - goto drop; - } - - IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id); - - if (ieee80211_is_data_qos(fc)) { - u8 *qc = ieee80211_get_qos_ctl(hdr); - tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; - if (unlikely(tid >= MAX_TID_COUNT)) - goto drop; - } - - /* Descriptor for chosen Tx queue */ - txq = &priv->txq[txq_id]; - q = &txq->q; - - if ((iwl_legacy_queue_space(q) < q->high_mark)) - goto drop; - - spin_lock_irqsave(&priv->lock, flags); - - idx = iwl_legacy_get_cmd_index(q, q->write_ptr, 0); - - /* Set up driver data for this TFD */ - memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); - txq->txb[q->write_ptr].skb = skb; - txq->txb[q->write_ptr].ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - /* Init first empty entry in queue's array of Tx/cmd buffers */ - out_cmd = txq->cmd[idx]; - out_meta = &txq->meta[idx]; - tx_cmd = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload; - memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); - memset(tx_cmd, 0, sizeof(*tx_cmd)); - - /* - * Set up the Tx-command (not MAC!) header. - * Store the chosen Tx queue and TFD index within the sequence field; - * after Tx, uCode's Tx response will return this value so driver can - * locate the frame within the tx queue and do post-tx processing. - */ - out_cmd->hdr.cmd = REPLY_TX; - out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | - INDEX_TO_SEQ(q->write_ptr))); - - /* Copy MAC header from skb into command buffer */ - memcpy(tx_cmd->hdr, hdr, hdr_len); - - - if (info->control.hw_key) - iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id); - - /* TODO need this for burst mode later on */ - iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id); - - /* set is_hcca to 0; it probably will never be implemented */ - iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); - - /* Total # bytes to be transmitted */ - len = (u16)skb->len; - tx_cmd->len = cpu_to_le16(len); - - iwl_legacy_dbg_log_tx_data_frame(priv, len, hdr); - iwl_legacy_update_stats(priv, true, fc, len); - tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; - tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; - - if (!ieee80211_has_morefrags(hdr->frame_control)) { - txq->need_update = 1; - } else { - wait_write_ptr = 1; - txq->need_update = 0; - } - - IWL_DEBUG_TX(priv, "sequence nr = 0X%x\n", - le16_to_cpu(out_cmd->hdr.sequence)); - IWL_DEBUG_TX(priv, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); - iwl_print_hex_dump(priv, IWL_DL_TX, tx_cmd, sizeof(*tx_cmd)); - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, - ieee80211_hdrlen(fc)); - - /* - * Use the first empty entry in this queue's command buffer array - * to contain the Tx command and MAC header concatenated together - * (payload data will be in another buffer). - * Size of this varies, due to varying MAC header length. - * If end is not dword aligned, we'll have 2 extra bytes at the end - * of the MAC header (device reads on dword boundaries). - * We'll tell device about this padding later. - */ - len = sizeof(struct iwl3945_tx_cmd) + - sizeof(struct iwl_cmd_header) + hdr_len; - len = (len + 3) & ~3; - - /* Physical address of this Tx command's header (not MAC header!), - * within command buffer array. */ - txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr, - len, PCI_DMA_TODEVICE); - /* we do not map meta data ... so we can safely access address to - * provide to unmap command*/ - dma_unmap_addr_set(out_meta, mapping, txcmd_phys); - dma_unmap_len_set(out_meta, len, len); - - /* Add buffer containing Tx command and MAC(!) header to TFD's - * first entry */ - priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, - txcmd_phys, len, 1, 0); - - - /* Set up TFD's 2nd entry to point directly to remainder of skb, - * if any (802.11 null frames have no payload). */ - len = skb->len - hdr_len; - if (len) { - phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, - len, PCI_DMA_TODEVICE); - priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, - phys_addr, len, - 0, U32_PAD(len)); - } - - - /* Tell device the write index *just past* this latest filled TFD */ - q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd); - iwl_legacy_txq_update_write_ptr(priv, txq); - spin_unlock_irqrestore(&priv->lock, flags); - - if ((iwl_legacy_queue_space(q) < q->high_mark) - && priv->mac80211_registered) { - if (wait_write_ptr) { - spin_lock_irqsave(&priv->lock, flags); - txq->need_update = 1; - iwl_legacy_txq_update_write_ptr(priv, txq); - spin_unlock_irqrestore(&priv->lock, flags); - } - - iwl_legacy_stop_queue(priv, txq); - } - - return 0; - -drop_unlock: - spin_unlock_irqrestore(&priv->lock, flags); -drop: - return -1; -} - -static int iwl3945_get_measurement(struct iwl_priv *priv, - struct ieee80211_measurement_params *params, - u8 type) -{ - struct iwl_spectrum_cmd spectrum; - struct iwl_rx_packet *pkt; - struct iwl_host_cmd cmd = { - .id = REPLY_SPECTRUM_MEASUREMENT_CMD, - .data = (void *)&spectrum, - .flags = CMD_WANT_SKB, - }; - u32 add_time = le64_to_cpu(params->start_time); - int rc; - int spectrum_resp_status; - int duration = le16_to_cpu(params->duration); - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) - add_time = iwl_legacy_usecs_to_beacons(priv, - le64_to_cpu(params->start_time) - priv->_3945.last_tsf, - le16_to_cpu(ctx->timing.beacon_interval)); - - memset(&spectrum, 0, sizeof(spectrum)); - - spectrum.channel_count = cpu_to_le16(1); - spectrum.flags = - RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; - spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; - cmd.len = sizeof(spectrum); - spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); - - if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) - spectrum.start_time = - iwl_legacy_add_beacon_time(priv, - priv->_3945.last_beacon_time, add_time, - le16_to_cpu(ctx->timing.beacon_interval)); - else - spectrum.start_time = 0; - - spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); - spectrum.channels[0].channel = params->channel; - spectrum.channels[0].type = type; - if (ctx->active.flags & RXON_FLG_BAND_24G_MSK) - spectrum.flags |= RXON_FLG_BAND_24G_MSK | - RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; - - rc = iwl_legacy_send_cmd_sync(priv, &cmd); - if (rc) - return rc; - - pkt = (struct iwl_rx_packet *)cmd.reply_page; - if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { - IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n"); - rc = -EIO; - } - - spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status); - switch (spectrum_resp_status) { - case 0: /* Command will be handled */ - if (pkt->u.spectrum.id != 0xff) { - IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n", - pkt->u.spectrum.id); - priv->measurement_status &= ~MEASUREMENT_READY; - } - priv->measurement_status |= MEASUREMENT_ACTIVE; - rc = 0; - break; - - case 1: /* Command will not be handled */ - rc = -EAGAIN; - break; - } - - iwl_legacy_free_pages(priv, cmd.reply_page); - - return rc; -} - -static void iwl3945_rx_reply_alive(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_alive_resp *palive; - struct delayed_work *pwork; - - palive = &pkt->u.alive_frame; - - IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " - "0x%01X 0x%01X\n", - palive->is_valid, palive->ver_type, - palive->ver_subtype); - - if (palive->ver_subtype == INITIALIZE_SUBTYPE) { - IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); - memcpy(&priv->card_alive_init, &pkt->u.alive_frame, - sizeof(struct iwl_alive_resp)); - pwork = &priv->init_alive_start; - } else { - IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); - memcpy(&priv->card_alive, &pkt->u.alive_frame, - sizeof(struct iwl_alive_resp)); - pwork = &priv->alive_start; - iwl3945_disable_events(priv); - } - - /* We delay the ALIVE response by 5ms to - * give the HW RF Kill time to activate... */ - if (palive->is_valid == UCODE_VALID_OK) - queue_delayed_work(priv->workqueue, pwork, - msecs_to_jiffies(5)); - else - IWL_WARN(priv, "uCode did not respond OK.\n"); -} - -static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - struct iwl_rx_packet *pkt = rxb_addr(rxb); -#endif - - IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); -} - -static void iwl3945_rx_beacon_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - u8 rate = beacon->beacon_notify_hdr.rate; - - IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " - "tsf %d %d rate %d\n", - le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, - beacon->beacon_notify_hdr.failure_frame, - le32_to_cpu(beacon->ibss_mgr_status), - le32_to_cpu(beacon->high_tsf), - le32_to_cpu(beacon->low_tsf), rate); -#endif - - priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); - -} - -/* Handle notification from uCode that card's power state is changing - * due to software, hardware, or critical temperature RFKILL */ -static void iwl3945_rx_card_state_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); - unsigned long status = priv->status; - - IWL_WARN(priv, "Card state received: HW:%s SW:%s\n", - (flags & HW_CARD_DISABLED) ? "Kill" : "On", - (flags & SW_CARD_DISABLED) ? "Kill" : "On"); - - iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, - CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); - - if (flags & HW_CARD_DISABLED) - set_bit(STATUS_RF_KILL_HW, &priv->status); - else - clear_bit(STATUS_RF_KILL_HW, &priv->status); - - - iwl_legacy_scan_cancel(priv); - - if ((test_bit(STATUS_RF_KILL_HW, &status) != - test_bit(STATUS_RF_KILL_HW, &priv->status))) - wiphy_rfkill_set_hw_state(priv->hw->wiphy, - test_bit(STATUS_RF_KILL_HW, &priv->status)); - else - wake_up(&priv->wait_command_queue); -} - -/** - * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks - * - * Setup the RX handlers for each of the reply types sent from the uCode - * to the host. - * - * This function chains into the hardware specific files for them to setup - * any hardware specific handlers as well. - */ -static void iwl3945_setup_rx_handlers(struct iwl_priv *priv) -{ - priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; - priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; - priv->rx_handlers[REPLY_ERROR] = iwl_legacy_rx_reply_error; - priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_legacy_rx_csa; - priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = - iwl_legacy_rx_spectrum_measure_notif; - priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_legacy_rx_pm_sleep_notif; - priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = - iwl_legacy_rx_pm_debug_statistics_notif; - priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; - - /* - * The same handler is used for both the REPLY to a discrete - * statistics request from the host as well as for the periodic - * statistics notifications (after received beacons) from the uCode. - */ - priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_reply_statistics; - priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; - - iwl_legacy_setup_rx_scan_handlers(priv); - priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; - - /* Set up hardware specific Rx handlers */ - iwl3945_hw_rx_handler_setup(priv); -} - -/************************** RX-FUNCTIONS ****************************/ -/* - * Rx theory of operation - * - * The host allocates 32 DMA target addresses and passes the host address - * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is - * 0 to 31 - * - * Rx Queue Indexes - * The host/firmware share two index registers for managing the Rx buffers. - * - * The READ index maps to the first position that the firmware may be writing - * to -- the driver can read up to (but not including) this position and get - * good data. - * The READ index is managed by the firmware once the card is enabled. - * - * The WRITE index maps to the last position the driver has read from -- the - * position preceding WRITE is the last slot the firmware can place a packet. - * - * The queue is empty (no good data) if WRITE = READ - 1, and is full if - * WRITE = READ. - * - * During initialization, the host sets up the READ queue position to the first - * INDEX position, and WRITE to the last (READ - 1 wrapped) - * - * When the firmware places a packet in a buffer, it will advance the READ index - * and fire the RX interrupt. The driver can then query the READ index and - * process as many packets as possible, moving the WRITE index forward as it - * resets the Rx queue buffers with new memory. - * - * The management in the driver is as follows: - * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When - * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled - * to replenish the iwl->rxq->rx_free. - * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the - * iwl->rxq is replenished and the READ INDEX is updated (updating the - * 'processed' and 'read' driver indexes as well) - * + A received packet is processed and handed to the kernel network stack, - * detached from the iwl->rxq. The driver 'processed' index is updated. - * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free - * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ - * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there - * were enough free buffers and RX_STALLED is set it is cleared. - * - * - * Driver sequence: - * - * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls - * iwl3945_rx_queue_restock - * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx - * queue, updates firmware pointers, and updates - * the WRITE index. If insufficient rx_free buffers - * are available, schedules iwl3945_rx_replenish - * - * -- enable interrupts -- - * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the - * READ INDEX, detaching the SKB from the pool. - * Moves the packet buffer from queue to rx_used. - * Calls iwl3945_rx_queue_restock to refill any empty - * slots. - * ... - * - */ - -/** - * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr - */ -static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv, - dma_addr_t dma_addr) -{ - return cpu_to_le32((u32)dma_addr); -} - -/** - * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool - * - * If there are slots in the RX queue that need to be restocked, - * and we have free pre-allocated buffers, fill the ranks as much - * as we can, pulling from rx_free. - * - * This moves the 'write' index forward to catch up with 'processed', and - * also updates the memory address in the firmware to reference the new - * target buffer. - */ -static void iwl3945_rx_queue_restock(struct iwl_priv *priv) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct list_head *element; - struct iwl_rx_mem_buffer *rxb; - unsigned long flags; - int write; - - spin_lock_irqsave(&rxq->lock, flags); - write = rxq->write & ~0x7; - while ((iwl_legacy_rx_queue_space(rxq) > 0) && (rxq->free_count)) { - /* Get next free Rx buffer, remove from free list */ - element = rxq->rx_free.next; - rxb = list_entry(element, struct iwl_rx_mem_buffer, list); - list_del(element); - - /* Point to Rx buffer via next RBD in circular buffer */ - rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->page_dma); - rxq->queue[rxq->write] = rxb; - rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; - rxq->free_count--; - } - spin_unlock_irqrestore(&rxq->lock, flags); - /* If the pre-allocated buffer pool is dropping low, schedule to - * refill it */ - if (rxq->free_count <= RX_LOW_WATERMARK) - queue_work(priv->workqueue, &priv->rx_replenish); - - - /* If we've added more space for the firmware to place data, tell it. - * Increment device's write pointer in multiples of 8. */ - if ((rxq->write_actual != (rxq->write & ~0x7)) - || (abs(rxq->write - rxq->read) > 7)) { - spin_lock_irqsave(&rxq->lock, flags); - rxq->need_update = 1; - spin_unlock_irqrestore(&rxq->lock, flags); - iwl_legacy_rx_queue_update_write_ptr(priv, rxq); - } -} - -/** - * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free - * - * When moving to rx_free an SKB is allocated for the slot. - * - * Also restock the Rx queue via iwl3945_rx_queue_restock. - * This is called as a scheduled work item (except for during initialization) - */ -static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct list_head *element; - struct iwl_rx_mem_buffer *rxb; - struct page *page; - unsigned long flags; - gfp_t gfp_mask = priority; - - while (1) { - spin_lock_irqsave(&rxq->lock, flags); - - if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); - return; - } - spin_unlock_irqrestore(&rxq->lock, flags); - - if (rxq->free_count > RX_LOW_WATERMARK) - gfp_mask |= __GFP_NOWARN; - - if (priv->hw_params.rx_page_order > 0) - gfp_mask |= __GFP_COMP; - - /* Alloc a new receive buffer */ - page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order); - if (!page) { - if (net_ratelimit()) - IWL_DEBUG_INFO(priv, "Failed to allocate SKB buffer.\n"); - if ((rxq->free_count <= RX_LOW_WATERMARK) && - net_ratelimit()) - IWL_CRIT(priv, "Failed to allocate SKB buffer with %s. Only %u free buffers remaining.\n", - priority == GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL", - rxq->free_count); - /* We don't reschedule replenish work here -- we will - * call the restock method and if it still needs - * more buffers it will schedule replenish */ - break; - } - - spin_lock_irqsave(&rxq->lock, flags); - if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); - __free_pages(page, priv->hw_params.rx_page_order); - return; - } - element = rxq->rx_used.next; - rxb = list_entry(element, struct iwl_rx_mem_buffer, list); - list_del(element); - spin_unlock_irqrestore(&rxq->lock, flags); - - rxb->page = page; - /* Get physical address of RB/SKB */ - rxb->page_dma = pci_map_page(priv->pci_dev, page, 0, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - - spin_lock_irqsave(&rxq->lock, flags); - - list_add_tail(&rxb->list, &rxq->rx_free); - rxq->free_count++; - priv->alloc_rxb_page++; - - spin_unlock_irqrestore(&rxq->lock, flags); - } -} - -void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - unsigned long flags; - int i; - spin_lock_irqsave(&rxq->lock, flags); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); - /* Fill the rx_used queue with _all_ of the Rx buffers */ - for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { - /* In the reset function, these buffers may have been allocated - * to an SKB, so we need to unmap and free potential storage */ - if (rxq->pool[i].page != NULL) { - pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - __iwl_legacy_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); - } - - /* Set us so that we have processed and used all buffers, but have - * not restocked the Rx queue with fresh buffers */ - rxq->read = rxq->write = 0; - rxq->write_actual = 0; - rxq->free_count = 0; - spin_unlock_irqrestore(&rxq->lock, flags); -} - -void iwl3945_rx_replenish(void *data) -{ - struct iwl_priv *priv = data; - unsigned long flags; - - iwl3945_rx_allocate(priv, GFP_KERNEL); - - spin_lock_irqsave(&priv->lock, flags); - iwl3945_rx_queue_restock(priv); - spin_unlock_irqrestore(&priv->lock, flags); -} - -static void iwl3945_rx_replenish_now(struct iwl_priv *priv) -{ - iwl3945_rx_allocate(priv, GFP_ATOMIC); - - iwl3945_rx_queue_restock(priv); -} - - -/* Assumes that the skb field of the buffers in 'pool' is kept accurate. - * If an SKB has been detached, the POOL needs to have its SKB set to NULL - * This free routine walks the list of POOL entries and if SKB is set to - * non NULL it is unmapped and freed - */ -static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - int i; - for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { - if (rxq->pool[i].page != NULL) { - pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - __iwl_legacy_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - } - - dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, - rxq->bd_dma); - dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status), - rxq->rb_stts, rxq->rb_stts_dma); - rxq->bd = NULL; - rxq->rb_stts = NULL; -} - - -/* Convert linear signal-to-noise ratio into dB */ -static u8 ratio2dB[100] = { -/* 0 1 2 3 4 5 6 7 8 9 */ - 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ - 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ - 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ - 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ - 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ - 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ - 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ - 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ - 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ - 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ -}; - -/* Calculates a relative dB value from a ratio of linear - * (i.e. not dB) signal levels. - * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ -int iwl3945_calc_db_from_ratio(int sig_ratio) -{ - /* 1000:1 or higher just report as 60 dB */ - if (sig_ratio >= 1000) - return 60; - - /* 100:1 or higher, divide by 10 and use table, - * add 20 dB to make up for divide by 10 */ - if (sig_ratio >= 100) - return 20 + (int)ratio2dB[sig_ratio/10]; - - /* We shouldn't see this */ - if (sig_ratio < 1) - return 0; - - /* Use table for ratios 1:1 - 99:1 */ - return (int)ratio2dB[sig_ratio]; -} - -/** - * iwl3945_rx_handle - Main entry function for receiving responses from uCode - * - * Uses the priv->rx_handlers callback function array to invoke - * the appropriate handlers, including command responses, - * frame-received notifications, and other notifications. - */ -static void iwl3945_rx_handle(struct iwl_priv *priv) -{ - struct iwl_rx_mem_buffer *rxb; - struct iwl_rx_packet *pkt; - struct iwl_rx_queue *rxq = &priv->rxq; - u32 r, i; - int reclaim; - unsigned long flags; - u8 fill_rx = 0; - u32 count = 8; - int total_empty = 0; - - /* uCode's read index (stored in shared DRAM) indicates the last Rx - * buffer that the driver may process (last buffer filled by ucode). */ - r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; - i = rxq->read; - - /* calculate total frames need to be restock after handling RX */ - total_empty = r - rxq->write_actual; - if (total_empty < 0) - total_empty += RX_QUEUE_SIZE; - - if (total_empty > (RX_QUEUE_SIZE / 2)) - fill_rx = 1; - /* Rx interrupt, but nothing sent from uCode */ - if (i == r) - IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); - - while (i != r) { - int len; - - rxb = rxq->queue[i]; - - /* If an RXB doesn't have a Rx queue slot associated with it, - * then a bug has been introduced in the queue refilling - * routines -- catch it here */ - BUG_ON(rxb == NULL); - - rxq->queue[i] = NULL; - - pci_unmap_page(priv->pci_dev, rxb->page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - pkt = rxb_addr(rxb); - - len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - len += sizeof(u32); /* account for status word */ - trace_iwlwifi_legacy_dev_rx(priv, pkt, len); - - /* Reclaim a command buffer only if this packet is a response - * to a (driver-originated) command. - * If the packet (e.g. Rx frame) originated from uCode, - * there is no command buffer to reclaim. - * Ucode should set SEQ_RX_FRAME bit if ucode-originated, - * but apparently a few don't get set; catch them here. */ - reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && - (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && - (pkt->hdr.cmd != REPLY_TX); - - /* Based on type of command response or notification, - * handle those that need handling via function in - * rx_handlers table. See iwl3945_setup_rx_handlers() */ - if (priv->rx_handlers[pkt->hdr.cmd]) { - IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, i, - iwl_legacy_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); - priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; - priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); - } else { - /* No handling needed */ - IWL_DEBUG_RX(priv, - "r %d i %d No handler needed for %s, 0x%02x\n", - r, i, iwl_legacy_get_cmd_string(pkt->hdr.cmd), - pkt->hdr.cmd); - } - - /* - * XXX: After here, we should always check rxb->page - * against NULL before touching it or its virtual - * memory (pkt). Because some rx_handler might have - * already taken or freed the pages. - */ - - if (reclaim) { - /* Invoke any callbacks, transfer the buffer to caller, - * and fire off the (possibly) blocking iwl_legacy_send_cmd() - * as we reclaim the driver command queue */ - if (rxb->page) - iwl_legacy_tx_cmd_complete(priv, rxb); - else - IWL_WARN(priv, "Claim null rxb?\n"); - } - - /* Reuse the page if possible. For notification packets and - * SKBs that fail to Rx correctly, add them back into the - * rx_free list for reuse later. */ - spin_lock_irqsave(&rxq->lock, flags); - if (rxb->page != NULL) { - rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page, - 0, PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - list_add_tail(&rxb->list, &rxq->rx_free); - rxq->free_count++; - } else - list_add_tail(&rxb->list, &rxq->rx_used); - - spin_unlock_irqrestore(&rxq->lock, flags); - - i = (i + 1) & RX_QUEUE_MASK; - /* If there are a lot of unused frames, - * restock the Rx queue so ucode won't assert. */ - if (fill_rx) { - count++; - if (count >= 8) { - rxq->read = i; - iwl3945_rx_replenish_now(priv); - count = 0; - } - } - } - - /* Backtrack one entry */ - rxq->read = i; - if (fill_rx) - iwl3945_rx_replenish_now(priv); - else - iwl3945_rx_queue_restock(priv); -} - -/* call this function to flush any scheduled tasklet */ -static inline void iwl3945_synchronize_irq(struct iwl_priv *priv) -{ - /* wait to make sure we flush pending tasklet*/ - synchronize_irq(priv->pci_dev->irq); - tasklet_kill(&priv->irq_tasklet); -} - -static const char *iwl3945_desc_lookup(int i) -{ - switch (i) { - case 1: - return "FAIL"; - case 2: - return "BAD_PARAM"; - case 3: - return "BAD_CHECKSUM"; - case 4: - return "NMI_INTERRUPT"; - case 5: - return "SYSASSERT"; - case 6: - return "FATAL_ERROR"; - } - - return "UNKNOWN"; -} - -#define ERROR_START_OFFSET (1 * sizeof(u32)) -#define ERROR_ELEM_SIZE (7 * sizeof(u32)) - -void iwl3945_dump_nic_error_log(struct iwl_priv *priv) -{ - u32 i; - u32 desc, time, count, base, data1; - u32 blink1, blink2, ilink1, ilink2; - - base = le32_to_cpu(priv->card_alive.error_event_table_ptr); - - if (!iwl3945_hw_valid_rtc_data_addr(base)) { - IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); - return; - } - - - count = iwl_legacy_read_targ_mem(priv, base); - - if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { - IWL_ERR(priv, "Start IWL Error Log Dump:\n"); - IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", - priv->status, count); - } - - IWL_ERR(priv, "Desc Time asrtPC blink2 " - "ilink1 nmiPC Line\n"); - for (i = ERROR_START_OFFSET; - i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; - i += ERROR_ELEM_SIZE) { - desc = iwl_legacy_read_targ_mem(priv, base + i); - time = - iwl_legacy_read_targ_mem(priv, base + i + 1 * sizeof(u32)); - blink1 = - iwl_legacy_read_targ_mem(priv, base + i + 2 * sizeof(u32)); - blink2 = - iwl_legacy_read_targ_mem(priv, base + i + 3 * sizeof(u32)); - ilink1 = - iwl_legacy_read_targ_mem(priv, base + i + 4 * sizeof(u32)); - ilink2 = - iwl_legacy_read_targ_mem(priv, base + i + 5 * sizeof(u32)); - data1 = - iwl_legacy_read_targ_mem(priv, base + i + 6 * sizeof(u32)); - - IWL_ERR(priv, - "%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", - iwl3945_desc_lookup(desc), desc, time, blink1, blink2, - ilink1, ilink2, data1); - trace_iwlwifi_legacy_dev_ucode_error(priv, desc, time, data1, 0, - 0, blink1, blink2, ilink1, ilink2); - } -} - -static void iwl3945_irq_tasklet(struct iwl_priv *priv) -{ - u32 inta, handled = 0; - u32 inta_fh; - unsigned long flags; -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - u32 inta_mask; -#endif - - spin_lock_irqsave(&priv->lock, flags); - - /* Ack/clear/reset pending uCode interrupts. - * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, - * and will clear only when CSR_FH_INT_STATUS gets cleared. */ - inta = iwl_read32(priv, CSR_INT); - iwl_write32(priv, CSR_INT, inta); - - /* Ack/clear/reset pending flow-handler (DMA) interrupts. - * Any new interrupts that happen after this, either while we're - * in this tasklet, or later, will show up in next ISR/tasklet. */ - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (iwl_legacy_get_debug_level(priv) & IWL_DL_ISR) { - /* just for debug */ - inta_mask = iwl_read32(priv, CSR_INT_MASK); - IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", - inta, inta_mask, inta_fh); - } -#endif - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not - * atomic, make sure that inta covers all the interrupts that - * we've discovered, even if FH interrupt came in just after - * reading CSR_INT. */ - if (inta_fh & CSR39_FH_INT_RX_MASK) - inta |= CSR_INT_BIT_FH_RX; - if (inta_fh & CSR39_FH_INT_TX_MASK) - inta |= CSR_INT_BIT_FH_TX; - - /* Now service all interrupt bits discovered above. */ - if (inta & CSR_INT_BIT_HW_ERR) { - IWL_ERR(priv, "Hardware error detected. Restarting.\n"); - - /* Tell the device to stop sending interrupts */ - iwl_legacy_disable_interrupts(priv); - - priv->isr_stats.hw++; - iwl_legacy_irq_handle_error(priv); - - handled |= CSR_INT_BIT_HW_ERR; - - return; - } - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) { - /* NIC fires this, but we don't use it, redundant with WAKEUP */ - if (inta & CSR_INT_BIT_SCD) { - IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " - "the frame/frames.\n"); - priv->isr_stats.sch++; - } - - /* Alive notification via Rx interrupt will do the real work */ - if (inta & CSR_INT_BIT_ALIVE) { - IWL_DEBUG_ISR(priv, "Alive interrupt\n"); - priv->isr_stats.alive++; - } - } -#endif - /* Safely ignore these bits for debug checks below */ - inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); - - /* Error detected by uCode */ - if (inta & CSR_INT_BIT_SW_ERR) { - IWL_ERR(priv, "Microcode SW error detected. " - "Restarting 0x%X.\n", inta); - priv->isr_stats.sw++; - iwl_legacy_irq_handle_error(priv); - handled |= CSR_INT_BIT_SW_ERR; - } - - /* uCode wakes up after power-down sleep */ - if (inta & CSR_INT_BIT_WAKEUP) { - IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); - iwl_legacy_rx_queue_update_write_ptr(priv, &priv->rxq); - iwl_legacy_txq_update_write_ptr(priv, &priv->txq[0]); - iwl_legacy_txq_update_write_ptr(priv, &priv->txq[1]); - iwl_legacy_txq_update_write_ptr(priv, &priv->txq[2]); - iwl_legacy_txq_update_write_ptr(priv, &priv->txq[3]); - iwl_legacy_txq_update_write_ptr(priv, &priv->txq[4]); - iwl_legacy_txq_update_write_ptr(priv, &priv->txq[5]); - - priv->isr_stats.wakeup++; - handled |= CSR_INT_BIT_WAKEUP; - } - - /* All uCode command responses, including Tx command responses, - * Rx "responses" (frame-received notification), and other - * notifications from uCode come through here*/ - if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { - iwl3945_rx_handle(priv); - priv->isr_stats.rx++; - handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); - } - - if (inta & CSR_INT_BIT_FH_TX) { - IWL_DEBUG_ISR(priv, "Tx interrupt\n"); - priv->isr_stats.tx++; - - iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); - iwl_legacy_write_direct32(priv, FH39_TCSR_CREDIT - (FH39_SRVC_CHNL), 0x0); - handled |= CSR_INT_BIT_FH_TX; - } - - if (inta & ~handled) { - IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); - priv->isr_stats.unhandled++; - } - - if (inta & ~priv->inta_mask) { - IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", - inta & ~priv->inta_mask); - IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); - } - - /* Re-enable all interrupts */ - /* only Re-enable if disabled by irq */ - if (test_bit(STATUS_INT_ENABLED, &priv->status)) - iwl_legacy_enable_interrupts(priv); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) { - inta = iwl_read32(priv, CSR_INT); - inta_mask = iwl_read32(priv, CSR_INT_MASK); - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " - "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); - } -#endif -} - -static int iwl3945_get_channels_for_scan(struct iwl_priv *priv, - enum ieee80211_band band, - u8 is_active, u8 n_probes, - struct iwl3945_scan_channel *scan_ch, - struct ieee80211_vif *vif) -{ - struct ieee80211_channel *chan; - const struct ieee80211_supported_band *sband; - const struct iwl_channel_info *ch_info; - u16 passive_dwell = 0; - u16 active_dwell = 0; - int added, i; - - sband = iwl_get_hw_mode(priv, band); - if (!sband) - return 0; - - active_dwell = iwl_legacy_get_active_dwell_time(priv, band, n_probes); - passive_dwell = iwl_legacy_get_passive_dwell_time(priv, band, vif); - - if (passive_dwell <= active_dwell) - passive_dwell = active_dwell + 1; - - for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) { - chan = priv->scan_request->channels[i]; - - if (chan->band != band) - continue; - - scan_ch->channel = chan->hw_value; - - ch_info = iwl_legacy_get_channel_info(priv, band, - scan_ch->channel); - if (!iwl_legacy_is_channel_valid(ch_info)) { - IWL_DEBUG_SCAN(priv, - "Channel %d is INVALID for this band.\n", - scan_ch->channel); - continue; - } - - scan_ch->active_dwell = cpu_to_le16(active_dwell); - scan_ch->passive_dwell = cpu_to_le16(passive_dwell); - /* If passive , set up for auto-switch - * and use long active_dwell time. - */ - if (!is_active || iwl_legacy_is_channel_passive(ch_info) || - (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) { - scan_ch->type = 0; /* passive */ - if (IWL_UCODE_API(priv->ucode_ver) == 1) - scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); - } else { - scan_ch->type = 1; /* active */ - } - - /* Set direct probe bits. These may be used both for active - * scan channels (probes gets sent right away), - * or for passive channels (probes get se sent only after - * hearing clear Rx packet).*/ - if (IWL_UCODE_API(priv->ucode_ver) >= 2) { - if (n_probes) - scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); - } else { - /* uCode v1 does not allow setting direct probe bits on - * passive channel. */ - if ((scan_ch->type & 1) && n_probes) - scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); - } - - /* Set txpower levels to defaults */ - scan_ch->tpc.dsp_atten = 110; - /* scan_pwr_info->tpc.dsp_atten; */ - - /*scan_pwr_info->tpc.tx_gain; */ - if (band == IEEE80211_BAND_5GHZ) - scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; - else { - scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); - /* NOTE: if we were doing 6Mb OFDM for scans we'd use - * power level: - * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; - */ - } - - IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n", - scan_ch->channel, - (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", - (scan_ch->type & 1) ? - active_dwell : passive_dwell); - - scan_ch++; - added++; - } - - IWL_DEBUG_SCAN(priv, "total channels to scan %d\n", added); - return added; -} - -static void iwl3945_init_hw_rates(struct iwl_priv *priv, - struct ieee80211_rate *rates) -{ - int i; - - for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { - rates[i].bitrate = iwl3945_rates[i].ieee * 5; - rates[i].hw_value = i; /* Rate scaling will work on indexes */ - rates[i].hw_value_short = i; - rates[i].flags = 0; - if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { - /* - * If CCK != 1M then set short preamble rate flag. - */ - rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? - 0 : IEEE80211_RATE_SHORT_PREAMBLE; - } - } -} - -/****************************************************************************** - * - * uCode download functions - * - ******************************************************************************/ - -static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv) -{ - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_code); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_boot); -} - -/** - * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, - * looking at all data. - */ -static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len) -{ - u32 val; - u32 save_len = len; - int rc = 0; - u32 errcnt; - - IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); - - iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, - IWL39_RTC_INST_LOWER_BOUND); - - errcnt = 0; - for (; len > 0; len -= sizeof(u32), image++) { - /* read data comes through single port, auto-incr addr */ - /* NOTE: Use the debugless read so we don't flood kernel log - * if IWL_DL_IO is set */ - val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT); - if (val != le32_to_cpu(*image)) { - IWL_ERR(priv, "uCode INST section is invalid at " - "offset 0x%x, is 0x%x, s/b 0x%x\n", - save_len - len, val, le32_to_cpu(*image)); - rc = -EIO; - errcnt++; - if (errcnt >= 20) - break; - } - } - - - if (!errcnt) - IWL_DEBUG_INFO(priv, - "ucode image in INSTRUCTION memory is good\n"); - - return rc; -} - - -/** - * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, - * using sample data 100 bytes apart. If these sample points are good, - * it's a pretty good bet that everything between them is good, too. - */ -static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) -{ - u32 val; - int rc = 0; - u32 errcnt = 0; - u32 i; - - IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); - - for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { - /* read data comes through single port, auto-incr addr */ - /* NOTE: Use the debugless read so we don't flood kernel log - * if IWL_DL_IO is set */ - iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, - i + IWL39_RTC_INST_LOWER_BOUND); - val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT); - if (val != le32_to_cpu(*image)) { -#if 0 /* Enable this if you want to see details */ - IWL_ERR(priv, "uCode INST section is invalid at " - "offset 0x%x, is 0x%x, s/b 0x%x\n", - i, val, *image); -#endif - rc = -EIO; - errcnt++; - if (errcnt >= 3) - break; - } - } - - return rc; -} - - -/** - * iwl3945_verify_ucode - determine which instruction image is in SRAM, - * and verify its contents - */ -static int iwl3945_verify_ucode(struct iwl_priv *priv) -{ - __le32 *image; - u32 len; - int rc = 0; - - /* Try bootstrap */ - image = (__le32 *)priv->ucode_boot.v_addr; - len = priv->ucode_boot.len; - rc = iwl3945_verify_inst_sparse(priv, image, len); - if (rc == 0) { - IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); - return 0; - } - - /* Try initialize */ - image = (__le32 *)priv->ucode_init.v_addr; - len = priv->ucode_init.len; - rc = iwl3945_verify_inst_sparse(priv, image, len); - if (rc == 0) { - IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); - return 0; - } - - /* Try runtime/protocol */ - image = (__le32 *)priv->ucode_code.v_addr; - len = priv->ucode_code.len; - rc = iwl3945_verify_inst_sparse(priv, image, len); - if (rc == 0) { - IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); - return 0; - } - - IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); - - /* Since nothing seems to match, show first several data entries in - * instruction SRAM, so maybe visual inspection will give a clue. - * Selection of bootstrap image (vs. other images) is arbitrary. */ - image = (__le32 *)priv->ucode_boot.v_addr; - len = priv->ucode_boot.len; - rc = iwl3945_verify_inst_full(priv, image, len); - - return rc; -} - -static void iwl3945_nic_start(struct iwl_priv *priv) -{ - /* Remove all resets to allow NIC to operate */ - iwl_write32(priv, CSR_RESET, 0); -} - -#define IWL3945_UCODE_GET(item) \ -static u32 iwl3945_ucode_get_##item(const struct iwl_ucode_header *ucode)\ -{ \ - return le32_to_cpu(ucode->v1.item); \ -} - -static u32 iwl3945_ucode_get_header_size(u32 api_ver) -{ - return 24; -} - -static u8 *iwl3945_ucode_get_data(const struct iwl_ucode_header *ucode) -{ - return (u8 *) ucode->v1.data; -} - -IWL3945_UCODE_GET(inst_size); -IWL3945_UCODE_GET(data_size); -IWL3945_UCODE_GET(init_size); -IWL3945_UCODE_GET(init_data_size); -IWL3945_UCODE_GET(boot_size); - -/** - * iwl3945_read_ucode - Read uCode images from disk file. - * - * Copy into buffers for card to fetch via bus-mastering - */ -static int iwl3945_read_ucode(struct iwl_priv *priv) -{ - const struct iwl_ucode_header *ucode; - int ret = -EINVAL, index; - const struct firmware *ucode_raw; - /* firmware file name contains uCode/driver compatibility version */ - const char *name_pre = priv->cfg->fw_name_pre; - const unsigned int api_max = priv->cfg->ucode_api_max; - const unsigned int api_min = priv->cfg->ucode_api_min; - char buf[25]; - u8 *src; - size_t len; - u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; - - /* Ask kernel firmware_class module to get the boot firmware off disk. - * request_firmware() is synchronous, file is in memory on return. */ - for (index = api_max; index >= api_min; index--) { - sprintf(buf, "%s%u%s", name_pre, index, ".ucode"); - ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); - if (ret < 0) { - IWL_ERR(priv, "%s firmware file req failed: %d\n", - buf, ret); - if (ret == -ENOENT) - continue; - else - goto error; - } else { - if (index < api_max) - IWL_ERR(priv, "Loaded firmware %s, " - "which is deprecated. " - " Please use API v%u instead.\n", - buf, api_max); - IWL_DEBUG_INFO(priv, "Got firmware '%s' file " - "(%zd bytes) from disk\n", - buf, ucode_raw->size); - break; - } - } - - if (ret < 0) - goto error; - - /* Make sure that we got at least our header! */ - if (ucode_raw->size < iwl3945_ucode_get_header_size(1)) { - IWL_ERR(priv, "File size way too small!\n"); - ret = -EINVAL; - goto err_release; - } - - /* Data from ucode file: header followed by uCode images */ - ucode = (struct iwl_ucode_header *)ucode_raw->data; - - priv->ucode_ver = le32_to_cpu(ucode->ver); - api_ver = IWL_UCODE_API(priv->ucode_ver); - inst_size = iwl3945_ucode_get_inst_size(ucode); - data_size = iwl3945_ucode_get_data_size(ucode); - init_size = iwl3945_ucode_get_init_size(ucode); - init_data_size = iwl3945_ucode_get_init_data_size(ucode); - boot_size = iwl3945_ucode_get_boot_size(ucode); - src = iwl3945_ucode_get_data(ucode); - - /* api_ver should match the api version forming part of the - * firmware filename ... but we don't check for that and only rely - * on the API version read from firmware header from here on forward */ - - if (api_ver < api_min || api_ver > api_max) { - IWL_ERR(priv, "Driver unable to support your firmware API. " - "Driver supports v%u, firmware is v%u.\n", - api_max, api_ver); - priv->ucode_ver = 0; - ret = -EINVAL; - goto err_release; - } - if (api_ver != api_max) - IWL_ERR(priv, "Firmware has old API version. Expected %u, " - "got %u. New firmware can be obtained " - "from http://www.intellinuxwireless.org.\n", - api_max, api_ver); - - IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", - IWL_UCODE_MAJOR(priv->ucode_ver), - IWL_UCODE_MINOR(priv->ucode_ver), - IWL_UCODE_API(priv->ucode_ver), - IWL_UCODE_SERIAL(priv->ucode_ver)); - - snprintf(priv->hw->wiphy->fw_version, - sizeof(priv->hw->wiphy->fw_version), - "%u.%u.%u.%u", - IWL_UCODE_MAJOR(priv->ucode_ver), - IWL_UCODE_MINOR(priv->ucode_ver), - IWL_UCODE_API(priv->ucode_ver), - IWL_UCODE_SERIAL(priv->ucode_ver)); - - IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", - priv->ucode_ver); - IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", - inst_size); - IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n", - data_size); - IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n", - init_size); - IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n", - init_data_size); - IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", - boot_size); - - - /* Verify size of file vs. image size info in file's header */ - if (ucode_raw->size != iwl3945_ucode_get_header_size(api_ver) + - inst_size + data_size + init_size + - init_data_size + boot_size) { - - IWL_DEBUG_INFO(priv, - "uCode file size %zd does not match expected size\n", - ucode_raw->size); - ret = -EINVAL; - goto err_release; - } - - /* Verify that uCode images will fit in card's SRAM */ - if (inst_size > IWL39_MAX_INST_SIZE) { - IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", - inst_size); - ret = -EINVAL; - goto err_release; - } - - if (data_size > IWL39_MAX_DATA_SIZE) { - IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", - data_size); - ret = -EINVAL; - goto err_release; - } - if (init_size > IWL39_MAX_INST_SIZE) { - IWL_DEBUG_INFO(priv, - "uCode init instr len %d too large to fit in\n", - init_size); - ret = -EINVAL; - goto err_release; - } - if (init_data_size > IWL39_MAX_DATA_SIZE) { - IWL_DEBUG_INFO(priv, - "uCode init data len %d too large to fit in\n", - init_data_size); - ret = -EINVAL; - goto err_release; - } - if (boot_size > IWL39_MAX_BSM_SIZE) { - IWL_DEBUG_INFO(priv, - "uCode boot instr len %d too large to fit in\n", - boot_size); - ret = -EINVAL; - goto err_release; - } - - /* Allocate ucode buffers for card's bus-master loading ... */ - - /* Runtime instructions and 2 copies of data: - * 1) unmodified from disk - * 2) backup cache for save/restore during power-downs */ - priv->ucode_code.len = inst_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); - - priv->ucode_data.len = data_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); - - priv->ucode_data_backup.len = data_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); - - if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || - !priv->ucode_data_backup.v_addr) - goto err_pci_alloc; - - /* Initialization instructions and data */ - if (init_size && init_data_size) { - priv->ucode_init.len = init_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); - - priv->ucode_init_data.len = init_data_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); - - if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) - goto err_pci_alloc; - } - - /* Bootstrap (instructions only, no data) */ - if (boot_size) { - priv->ucode_boot.len = boot_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); - - if (!priv->ucode_boot.v_addr) - goto err_pci_alloc; - } - - /* Copy images into buffers for card's bus-master reads ... */ - - /* Runtime instructions (first block of data in file) */ - len = inst_size; - IWL_DEBUG_INFO(priv, - "Copying (but not loading) uCode instr len %zd\n", len); - memcpy(priv->ucode_code.v_addr, src, len); - src += len; - - IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", - priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); - - /* Runtime data (2nd block) - * NOTE: Copy into backup buffer will be done in iwl3945_up() */ - len = data_size; - IWL_DEBUG_INFO(priv, - "Copying (but not loading) uCode data len %zd\n", len); - memcpy(priv->ucode_data.v_addr, src, len); - memcpy(priv->ucode_data_backup.v_addr, src, len); - src += len; - - /* Initialization instructions (3rd block) */ - if (init_size) { - len = init_size; - IWL_DEBUG_INFO(priv, - "Copying (but not loading) init instr len %zd\n", len); - memcpy(priv->ucode_init.v_addr, src, len); - src += len; - } - - /* Initialization data (4th block) */ - if (init_data_size) { - len = init_data_size; - IWL_DEBUG_INFO(priv, - "Copying (but not loading) init data len %zd\n", len); - memcpy(priv->ucode_init_data.v_addr, src, len); - src += len; - } - - /* Bootstrap instructions (5th block) */ - len = boot_size; - IWL_DEBUG_INFO(priv, - "Copying (but not loading) boot instr len %zd\n", len); - memcpy(priv->ucode_boot.v_addr, src, len); - - /* We have our copies now, allow OS release its copies */ - release_firmware(ucode_raw); - return 0; - - err_pci_alloc: - IWL_ERR(priv, "failed to allocate pci memory\n"); - ret = -ENOMEM; - iwl3945_dealloc_ucode_pci(priv); - - err_release: - release_firmware(ucode_raw); - - error: - return ret; -} - - -/** - * iwl3945_set_ucode_ptrs - Set uCode address location - * - * Tell initialization uCode where to find runtime uCode. - * - * BSM registers initially contain pointers to initialization uCode. - * We need to replace them to load runtime uCode inst and data, - * and to save runtime data when powering down. - */ -static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv) -{ - dma_addr_t pinst; - dma_addr_t pdata; - - /* bits 31:0 for 3945 */ - pinst = priv->ucode_code.p_addr; - pdata = priv->ucode_data_backup.p_addr; - - /* Tell bootstrap uCode where to find image to load */ - iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); - iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, - priv->ucode_data.len); - - /* Inst byte count must be last to set up, bit 31 signals uCode - * that all new ptr/size info is in place */ - iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, - priv->ucode_code.len | BSM_DRAM_INST_LOAD); - - IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n"); - - return 0; -} - -/** - * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received - * - * Called after REPLY_ALIVE notification received from "initialize" uCode. - * - * Tell "initialize" uCode to go ahead and load the runtime uCode. - */ -static void iwl3945_init_alive_start(struct iwl_priv *priv) -{ - /* Check alive response for "valid" sign from uCode */ - if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { - /* We had an error bringing up the hardware, so take it - * all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n"); - goto restart; - } - - /* Bootstrap uCode has loaded initialize uCode ... verify inst image. - * This is a paranoid check, because we would not have gotten the - * "initialize" alive if code weren't properly loaded. */ - if (iwl3945_verify_ucode(priv)) { - /* Runtime instruction load was bad; - * take it all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n"); - goto restart; - } - - /* Send pointers to protocol/runtime uCode image ... init code will - * load and launch runtime uCode, which will send us another "Alive" - * notification. */ - IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); - if (iwl3945_set_ucode_ptrs(priv)) { - /* Runtime instruction load won't happen; - * take it all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n"); - goto restart; - } - return; - - restart: - queue_work(priv->workqueue, &priv->restart); -} - -/** - * iwl3945_alive_start - called after REPLY_ALIVE notification received - * from protocol/runtime uCode (initialization uCode's - * Alive gets handled by iwl3945_init_alive_start()). - */ -static void iwl3945_alive_start(struct iwl_priv *priv) -{ - int thermal_spin = 0; - u32 rfkill; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); - - if (priv->card_alive.is_valid != UCODE_VALID_OK) { - /* We had an error bringing up the hardware, so take it - * all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Alive failed.\n"); - goto restart; - } - - /* Initialize uCode has loaded Runtime uCode ... verify inst image. - * This is a paranoid check, because we would not have gotten the - * "runtime" alive if code weren't properly loaded. */ - if (iwl3945_verify_ucode(priv)) { - /* Runtime instruction load was bad; - * take it all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); - goto restart; - } - - rfkill = iwl_legacy_read_prph(priv, APMG_RFKILL_REG); - IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill); - - if (rfkill & 0x1) { - clear_bit(STATUS_RF_KILL_HW, &priv->status); - /* if RFKILL is not on, then wait for thermal - * sensor in adapter to kick in */ - while (iwl3945_hw_get_temperature(priv) == 0) { - thermal_spin++; - udelay(10); - } - - if (thermal_spin) - IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n", - thermal_spin * 10); - } else - set_bit(STATUS_RF_KILL_HW, &priv->status); - - /* After the ALIVE response, we can send commands to 3945 uCode */ - set_bit(STATUS_ALIVE, &priv->status); - - /* Enable watchdog to monitor the driver tx queues */ - iwl_legacy_setup_watchdog(priv); - - if (iwl_legacy_is_rfkill(priv)) - return; - - ieee80211_wake_queues(priv->hw); - - priv->active_rate = IWL_RATES_MASK_3945; - - iwl_legacy_power_update_mode(priv, true); - - if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) { - struct iwl3945_rxon_cmd *active_rxon = - (struct iwl3945_rxon_cmd *)(&ctx->active); - - ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; - active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; - } else { - /* Initialize our rx_config data */ - iwl_legacy_connection_init_rx_config(priv, ctx); - } - - /* Configure Bluetooth device coexistence support */ - iwl_legacy_send_bt_config(priv); - - set_bit(STATUS_READY, &priv->status); - - /* Configure the adapter for unassociated operation */ - iwl3945_commit_rxon(priv, ctx); - - iwl3945_reg_txpower_periodic(priv); - - IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); - wake_up(&priv->wait_command_queue); - - return; - - restart: - queue_work(priv->workqueue, &priv->restart); -} - -static void iwl3945_cancel_deferred_work(struct iwl_priv *priv); - -static void __iwl3945_down(struct iwl_priv *priv) -{ - unsigned long flags; - int exit_pending; - - IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); - - iwl_legacy_scan_cancel_timeout(priv, 200); - - exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); - - /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set - * to prevent rearm timer */ - del_timer_sync(&priv->watchdog); - - /* Station information will now be cleared in device */ - iwl_legacy_clear_ucode_stations(priv, NULL); - iwl_legacy_dealloc_bcast_stations(priv); - iwl_legacy_clear_driver_stations(priv); - - /* Unblock any waiting calls */ - wake_up_all(&priv->wait_command_queue); - - /* Wipe out the EXIT_PENDING status bit if we are not actually - * exiting the module */ - if (!exit_pending) - clear_bit(STATUS_EXIT_PENDING, &priv->status); - - /* stop and reset the on-board processor */ - iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); - - /* tell the device to stop sending interrupts */ - spin_lock_irqsave(&priv->lock, flags); - iwl_legacy_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - iwl3945_synchronize_irq(priv); - - if (priv->mac80211_registered) - ieee80211_stop_queues(priv->hw); - - /* If we have not previously called iwl3945_init() then - * clear all bits but the RF Kill bits and return */ - if (!iwl_legacy_is_init(priv)) { - priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << - STATUS_RF_KILL_HW | - test_bit(STATUS_GEO_CONFIGURED, &priv->status) << - STATUS_GEO_CONFIGURED | - test_bit(STATUS_EXIT_PENDING, &priv->status) << - STATUS_EXIT_PENDING; - goto exit; - } - - /* ...otherwise clear out all the status bits but the RF Kill - * bit and continue taking the NIC down. */ - priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << - STATUS_RF_KILL_HW | - test_bit(STATUS_GEO_CONFIGURED, &priv->status) << - STATUS_GEO_CONFIGURED | - test_bit(STATUS_FW_ERROR, &priv->status) << - STATUS_FW_ERROR | - test_bit(STATUS_EXIT_PENDING, &priv->status) << - STATUS_EXIT_PENDING; - - iwl3945_hw_txq_ctx_stop(priv); - iwl3945_hw_rxq_stop(priv); - - /* Power-down device's busmaster DMA clocks */ - iwl_legacy_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); - udelay(5); - - /* Stop the device, and put it in low power state */ - iwl_legacy_apm_stop(priv); - - exit: - memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); - - if (priv->beacon_skb) - dev_kfree_skb(priv->beacon_skb); - priv->beacon_skb = NULL; - - /* clear out any free frames */ - iwl3945_clear_free_frames(priv); -} - -static void iwl3945_down(struct iwl_priv *priv) -{ - mutex_lock(&priv->mutex); - __iwl3945_down(priv); - mutex_unlock(&priv->mutex); - - iwl3945_cancel_deferred_work(priv); -} - -#define MAX_HW_RESTARTS 5 - -static int iwl3945_alloc_bcast_station(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - unsigned long flags; - u8 sta_id; - - spin_lock_irqsave(&priv->sta_lock, flags); - sta_id = iwl_legacy_prep_station(priv, ctx, - iwlegacy_bcast_addr, false, NULL); - if (sta_id == IWL_INVALID_STATION) { - IWL_ERR(priv, "Unable to prepare broadcast station\n"); - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return -EINVAL; - } - - priv->stations[sta_id].used |= IWL_STA_DRIVER_ACTIVE; - priv->stations[sta_id].used |= IWL_STA_BCAST; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - return 0; -} - -static int __iwl3945_up(struct iwl_priv *priv) -{ - int rc, i; - - rc = iwl3945_alloc_bcast_station(priv); - if (rc) - return rc; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { - IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); - return -EIO; - } - - if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { - IWL_ERR(priv, "ucode not available for device bring up\n"); - return -EIO; - } - - /* If platform's RF_KILL switch is NOT set to KILL */ - if (iwl_read32(priv, CSR_GP_CNTRL) & - CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) - clear_bit(STATUS_RF_KILL_HW, &priv->status); - else { - set_bit(STATUS_RF_KILL_HW, &priv->status); - IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); - return -ENODEV; - } - - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - - rc = iwl3945_hw_nic_init(priv); - if (rc) { - IWL_ERR(priv, "Unable to int nic\n"); - return rc; - } - - /* make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); - - /* clear (again), then enable host interrupts */ - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - iwl_legacy_enable_interrupts(priv); - - /* really make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - - /* Copy original ucode data image from disk into backup cache. - * This will be used to initialize the on-board processor's - * data SRAM for a clean start when the runtime program first loads. */ - memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, - priv->ucode_data.len); - - /* We return success when we resume from suspend and rf_kill is on. */ - if (test_bit(STATUS_RF_KILL_HW, &priv->status)) - return 0; - - for (i = 0; i < MAX_HW_RESTARTS; i++) { - - /* load bootstrap state machine, - * load bootstrap program into processor's memory, - * prepare to load the "initialize" uCode */ - rc = priv->cfg->ops->lib->load_ucode(priv); - - if (rc) { - IWL_ERR(priv, - "Unable to set up bootstrap uCode: %d\n", rc); - continue; - } - - /* start card; "initialize" will load runtime ucode */ - iwl3945_nic_start(priv); - - IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); - - return 0; - } - - set_bit(STATUS_EXIT_PENDING, &priv->status); - __iwl3945_down(priv); - clear_bit(STATUS_EXIT_PENDING, &priv->status); - - /* tried to restart and config the device for as long as our - * patience could withstand */ - IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); - return -EIO; -} - - -/***************************************************************************** - * - * Workqueue callbacks - * - *****************************************************************************/ - -static void iwl3945_bg_init_alive_start(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, init_alive_start.work); - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - goto out; - - iwl3945_init_alive_start(priv); -out: - mutex_unlock(&priv->mutex); -} - -static void iwl3945_bg_alive_start(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, alive_start.work); - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - goto out; - - iwl3945_alive_start(priv); -out: - mutex_unlock(&priv->mutex); -} - -/* - * 3945 cannot interrupt driver when hardware rf kill switch toggles; - * driver must poll CSR_GP_CNTRL_REG register for change. This register - * *is* readable even when device has been SW_RESET into low power mode - * (e.g. during RF KILL). - */ -static void iwl3945_rfkill_poll(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, _3945.rfkill_poll.work); - bool old_rfkill = test_bit(STATUS_RF_KILL_HW, &priv->status); - bool new_rfkill = !(iwl_read32(priv, CSR_GP_CNTRL) - & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); - - if (new_rfkill != old_rfkill) { - if (new_rfkill) - set_bit(STATUS_RF_KILL_HW, &priv->status); - else - clear_bit(STATUS_RF_KILL_HW, &priv->status); - - wiphy_rfkill_set_hw_state(priv->hw->wiphy, new_rfkill); - - IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n", - new_rfkill ? "disable radio" : "enable radio"); - } - - /* Keep this running, even if radio now enabled. This will be - * cancelled in mac_start() if system decides to start again */ - queue_delayed_work(priv->workqueue, &priv->_3945.rfkill_poll, - round_jiffies_relative(2 * HZ)); - -} - -int iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) -{ - struct iwl_host_cmd cmd = { - .id = REPLY_SCAN_CMD, - .len = sizeof(struct iwl3945_scan_cmd), - .flags = CMD_SIZE_HUGE, - }; - struct iwl3945_scan_cmd *scan; - u8 n_probes = 0; - enum ieee80211_band band; - bool is_active = false; - int ret; - u16 len; - - lockdep_assert_held(&priv->mutex); - - if (!priv->scan_cmd) { - priv->scan_cmd = kmalloc(sizeof(struct iwl3945_scan_cmd) + - IWL_MAX_SCAN_SIZE, GFP_KERNEL); - if (!priv->scan_cmd) { - IWL_DEBUG_SCAN(priv, "Fail to allocate scan memory\n"); - return -ENOMEM; - } - } - scan = priv->scan_cmd; - memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); - - scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; - scan->quiet_time = IWL_ACTIVE_QUIET_TIME; - - if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) { - u16 interval; - u32 extra; - u32 suspend_time = 100; - u32 scan_suspend_time = 100; - - IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); - - interval = vif->bss_conf.beacon_int; - - scan->suspend_time = 0; - scan->max_out_time = cpu_to_le32(200 * 1024); - if (!interval) - interval = suspend_time; - /* - * suspend time format: - * 0-19: beacon interval in usec (time before exec.) - * 20-23: 0 - * 24-31: number of beacons (suspend between channels) - */ - - extra = (suspend_time / interval) << 24; - scan_suspend_time = 0xFF0FFFFF & - (extra | ((suspend_time % interval) * 1024)); - - scan->suspend_time = cpu_to_le32(scan_suspend_time); - IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", - scan_suspend_time, interval); - } - - if (priv->scan_request->n_ssids) { - int i, p = 0; - IWL_DEBUG_SCAN(priv, "Kicking off active scan\n"); - for (i = 0; i < priv->scan_request->n_ssids; i++) { - /* always does wildcard anyway */ - if (!priv->scan_request->ssids[i].ssid_len) - continue; - scan->direct_scan[p].id = WLAN_EID_SSID; - scan->direct_scan[p].len = - priv->scan_request->ssids[i].ssid_len; - memcpy(scan->direct_scan[p].ssid, - priv->scan_request->ssids[i].ssid, - priv->scan_request->ssids[i].ssid_len); - n_probes++; - p++; - } - is_active = true; - } else - IWL_DEBUG_SCAN(priv, "Kicking off passive scan.\n"); - - /* We don't build a direct scan probe request; the uCode will do - * that based on the direct_mask added to each channel entry */ - scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; - scan->tx_cmd.sta_id = priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id; - scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - - /* flags + rate selection */ - - switch (priv->scan_band) { - case IEEE80211_BAND_2GHZ: - scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; - scan->tx_cmd.rate = IWL_RATE_1M_PLCP; - band = IEEE80211_BAND_2GHZ; - break; - case IEEE80211_BAND_5GHZ: - scan->tx_cmd.rate = IWL_RATE_6M_PLCP; - band = IEEE80211_BAND_5GHZ; - break; - default: - IWL_WARN(priv, "Invalid scan band\n"); - return -EIO; - } - - /* - * If active scaning is requested but a certain channel - * is marked passive, we can do active scanning if we - * detect transmissions. - */ - scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT : - IWL_GOOD_CRC_TH_DISABLED; - - len = iwl_legacy_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data, - vif->addr, priv->scan_request->ie, - priv->scan_request->ie_len, - IWL_MAX_SCAN_SIZE - sizeof(*scan)); - scan->tx_cmd.len = cpu_to_le16(len); - - /* select Rx antennas */ - scan->flags |= iwl3945_get_antenna_flags(priv); - - scan->channel_count = iwl3945_get_channels_for_scan(priv, band, is_active, n_probes, - (void *)&scan->data[len], vif); - if (scan->channel_count == 0) { - IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); - return -EIO; - } - - cmd.len += le16_to_cpu(scan->tx_cmd.len) + - scan->channel_count * sizeof(struct iwl3945_scan_channel); - cmd.data = scan; - scan->len = cpu_to_le16(cmd.len); - - set_bit(STATUS_SCAN_HW, &priv->status); - ret = iwl_legacy_send_cmd_sync(priv, &cmd); - if (ret) - clear_bit(STATUS_SCAN_HW, &priv->status); - return ret; -} - -void iwl3945_post_scan(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - /* - * Since setting the RXON may have been deferred while - * performing the scan, fire one off if needed - */ - if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) - iwl3945_commit_rxon(priv, ctx); -} - -static void iwl3945_bg_restart(struct work_struct *data) -{ - struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { - struct iwl_rxon_context *ctx; - mutex_lock(&priv->mutex); - for_each_context(priv, ctx) - ctx->vif = NULL; - priv->is_open = 0; - mutex_unlock(&priv->mutex); - iwl3945_down(priv); - ieee80211_restart_hw(priv->hw); - } else { - iwl3945_down(priv); - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { - mutex_unlock(&priv->mutex); - return; - } - - __iwl3945_up(priv); - mutex_unlock(&priv->mutex); - } -} - -static void iwl3945_bg_rx_replenish(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, rx_replenish); - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - goto out; - - iwl3945_rx_replenish(priv); -out: - mutex_unlock(&priv->mutex); -} - -void iwl3945_post_associate(struct iwl_priv *priv) -{ - int rc = 0; - struct ieee80211_conf *conf = NULL; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - if (!ctx->vif || !priv->is_open) - return; - - IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", - ctx->vif->bss_conf.aid, ctx->active.bssid_addr); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - iwl_legacy_scan_cancel_timeout(priv, 200); - - conf = iwl_legacy_ieee80211_get_hw_conf(priv->hw); - - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwl3945_commit_rxon(priv, ctx); - - rc = iwl_legacy_send_rxon_timing(priv, ctx); - if (rc) - IWL_WARN(priv, "REPLY_RXON_TIMING failed - " - "Attempting to continue.\n"); - - ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; - - ctx->staging.assoc_id = cpu_to_le16(ctx->vif->bss_conf.aid); - - IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", - ctx->vif->bss_conf.aid, ctx->vif->bss_conf.beacon_int); - - if (ctx->vif->bss_conf.use_short_preamble) - ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; - else - ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; - - if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { - if (ctx->vif->bss_conf.use_short_slot) - ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; - else - ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; - } - - iwl3945_commit_rxon(priv, ctx); - - switch (ctx->vif->type) { - case NL80211_IFTYPE_STATION: - iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); - break; - case NL80211_IFTYPE_ADHOC: - iwl3945_send_beacon_cmd(priv); - break; - default: - IWL_ERR(priv, "%s Should not be called in %d mode\n", - __func__, ctx->vif->type); - break; - } -} - -/***************************************************************************** - * - * mac80211 entry point functions - * - *****************************************************************************/ - -#define UCODE_READY_TIMEOUT (2 * HZ) - -static int iwl3945_mac_start(struct ieee80211_hw *hw) -{ - struct iwl_priv *priv = hw->priv; - int ret; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - /* we should be verifying the device is ready to be opened */ - mutex_lock(&priv->mutex); - - /* fetch ucode file from disk, alloc and copy to bus-master buffers ... - * ucode filename and max sizes are card-specific. */ - - if (!priv->ucode_code.len) { - ret = iwl3945_read_ucode(priv); - if (ret) { - IWL_ERR(priv, "Could not read microcode: %d\n", ret); - mutex_unlock(&priv->mutex); - goto out_release_irq; - } - } - - ret = __iwl3945_up(priv); - - mutex_unlock(&priv->mutex); - - if (ret) - goto out_release_irq; - - IWL_DEBUG_INFO(priv, "Start UP work.\n"); - - /* Wait for START_ALIVE from ucode. Otherwise callbacks from - * mac80211 will not be run successfully. */ - ret = wait_event_timeout(priv->wait_command_queue, - test_bit(STATUS_READY, &priv->status), - UCODE_READY_TIMEOUT); - if (!ret) { - if (!test_bit(STATUS_READY, &priv->status)) { - IWL_ERR(priv, - "Wait for START_ALIVE timeout after %dms.\n", - jiffies_to_msecs(UCODE_READY_TIMEOUT)); - ret = -ETIMEDOUT; - goto out_release_irq; - } - } - - /* ucode is running and will send rfkill notifications, - * no need to poll the killswitch state anymore */ - cancel_delayed_work(&priv->_3945.rfkill_poll); - - priv->is_open = 1; - IWL_DEBUG_MAC80211(priv, "leave\n"); - return 0; - -out_release_irq: - priv->is_open = 0; - IWL_DEBUG_MAC80211(priv, "leave - failed\n"); - return ret; -} - -static void iwl3945_mac_stop(struct ieee80211_hw *hw) -{ - struct iwl_priv *priv = hw->priv; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (!priv->is_open) { - IWL_DEBUG_MAC80211(priv, "leave - skip\n"); - return; - } - - priv->is_open = 0; - - iwl3945_down(priv); - - flush_workqueue(priv->workqueue); - - /* start polling the killswitch state again */ - queue_delayed_work(priv->workqueue, &priv->_3945.rfkill_poll, - round_jiffies_relative(2 * HZ)); - - IWL_DEBUG_MAC80211(priv, "leave\n"); -} - -static void iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) -{ - struct iwl_priv *priv = hw->priv; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, - ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); - - if (iwl3945_tx_skb(priv, skb)) - dev_kfree_skb_any(skb); - - IWL_DEBUG_MAC80211(priv, "leave\n"); -} - -void iwl3945_config_ap(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - struct ieee80211_vif *vif = ctx->vif; - int rc = 0; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - /* The following should be done only at AP bring up */ - if (!(iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS))) { - - /* RXON - unassoc (to set timing command) */ - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwl3945_commit_rxon(priv, ctx); - - /* RXON Timing */ - rc = iwl_legacy_send_rxon_timing(priv, ctx); - if (rc) - IWL_WARN(priv, "REPLY_RXON_TIMING failed - " - "Attempting to continue.\n"); - - ctx->staging.assoc_id = 0; - - if (vif->bss_conf.use_short_preamble) - ctx->staging.flags |= - RXON_FLG_SHORT_PREAMBLE_MSK; - else - ctx->staging.flags &= - ~RXON_FLG_SHORT_PREAMBLE_MSK; - - if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { - if (vif->bss_conf.use_short_slot) - ctx->staging.flags |= - RXON_FLG_SHORT_SLOT_MSK; - else - ctx->staging.flags &= - ~RXON_FLG_SHORT_SLOT_MSK; - } - /* restore RXON assoc */ - ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; - iwl3945_commit_rxon(priv, ctx); - } - iwl3945_send_beacon_cmd(priv); -} - -static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, - struct ieee80211_vif *vif, - struct ieee80211_sta *sta, - struct ieee80211_key_conf *key) -{ - struct iwl_priv *priv = hw->priv; - int ret = 0; - u8 sta_id = IWL_INVALID_STATION; - u8 static_key; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (iwl3945_mod_params.sw_crypto) { - IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); - return -EOPNOTSUPP; - } - - /* - * To support IBSS RSN, don't program group keys in IBSS, the - * hardware will then not attempt to decrypt the frames. - */ - if (vif->type == NL80211_IFTYPE_ADHOC && - !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) - return -EOPNOTSUPP; - - static_key = !iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS); - - if (!static_key) { - sta_id = iwl_legacy_sta_id_or_broadcast( - priv, &priv->contexts[IWL_RXON_CTX_BSS], sta); - if (sta_id == IWL_INVALID_STATION) - return -EINVAL; - } - - mutex_lock(&priv->mutex); - iwl_legacy_scan_cancel_timeout(priv, 100); - - switch (cmd) { - case SET_KEY: - if (static_key) - ret = iwl3945_set_static_key(priv, key); - else - ret = iwl3945_set_dynamic_key(priv, key, sta_id); - IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); - break; - case DISABLE_KEY: - if (static_key) - ret = iwl3945_remove_static_key(priv); - else - ret = iwl3945_clear_sta_key_info(priv, sta_id); - IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); - break; - default: - ret = -EINVAL; - } - - mutex_unlock(&priv->mutex); - IWL_DEBUG_MAC80211(priv, "leave\n"); - - return ret; -} - -static int iwl3945_mac_sta_add(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_sta *sta) -{ - struct iwl_priv *priv = hw->priv; - struct iwl3945_sta_priv *sta_priv = (void *)sta->drv_priv; - int ret; - bool is_ap = vif->type == NL80211_IFTYPE_STATION; - u8 sta_id; - - IWL_DEBUG_INFO(priv, "received request to add station %pM\n", - sta->addr); - mutex_lock(&priv->mutex); - IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", - sta->addr); - sta_priv->common.sta_id = IWL_INVALID_STATION; - - - ret = iwl_legacy_add_station_common(priv, - &priv->contexts[IWL_RXON_CTX_BSS], - sta->addr, is_ap, sta, &sta_id); - if (ret) { - IWL_ERR(priv, "Unable to add station %pM (%d)\n", - sta->addr, ret); - /* Should we return success if return code is EEXIST ? */ - mutex_unlock(&priv->mutex); - return ret; - } - - sta_priv->common.sta_id = sta_id; - - /* Initialize rate scaling */ - IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", - sta->addr); - iwl3945_rs_rate_init(priv, sta, sta_id); - mutex_unlock(&priv->mutex); - - return 0; -} - -static void iwl3945_configure_filter(struct ieee80211_hw *hw, - unsigned int changed_flags, - unsigned int *total_flags, - u64 multicast) -{ - struct iwl_priv *priv = hw->priv; - __le32 filter_or = 0, filter_nand = 0; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - -#define CHK(test, flag) do { \ - if (*total_flags & (test)) \ - filter_or |= (flag); \ - else \ - filter_nand |= (flag); \ - } while (0) - - IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", - changed_flags, *total_flags); - - CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); - CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK); - CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); - -#undef CHK - - mutex_lock(&priv->mutex); - - ctx->staging.filter_flags &= ~filter_nand; - ctx->staging.filter_flags |= filter_or; - - /* - * Not committing directly because hardware can perform a scan, - * but even if hw is ready, committing here breaks for some reason, - * we'll eventually commit the filter flags change anyway. - */ - - mutex_unlock(&priv->mutex); - - /* - * Receiving all multicast frames is always enabled by the - * default flags setup in iwl_legacy_connection_init_rx_config() - * since we currently do not support programming multicast - * filters into the device. - */ - *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | - FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; -} - - -/***************************************************************************** - * - * sysfs attributes - * - *****************************************************************************/ - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - -/* - * The following adds a new attribute to the sysfs representation - * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) - * used for controlling the debug level. - * - * See the level definitions in iwl for details. - * - * The debug_level being managed using sysfs below is a per device debug - * level that is used instead of the global debug level if it (the per - * device debug level) is set. - */ -static ssize_t iwl3945_show_debug_level(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - return sprintf(buf, "0x%08X\n", iwl_legacy_get_debug_level(priv)); -} -static ssize_t iwl3945_store_debug_level(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - unsigned long val; - int ret; - - ret = strict_strtoul(buf, 0, &val); - if (ret) - IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf); - else { - priv->debug_level = val; - if (iwl_legacy_alloc_traffic_mem(priv)) - IWL_ERR(priv, - "Not enough memory to generate traffic log\n"); - } - return strnlen(buf, count); -} - -static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, - iwl3945_show_debug_level, iwl3945_store_debug_level); - -#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */ - -static ssize_t iwl3945_show_temperature(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); -} - -static DEVICE_ATTR(temperature, S_IRUGO, iwl3945_show_temperature, NULL); - -static ssize_t iwl3945_show_tx_power(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - return sprintf(buf, "%d\n", priv->tx_power_user_lmt); -} - -static ssize_t iwl3945_store_tx_power(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - char *p = (char *)buf; - u32 val; - - val = simple_strtoul(p, &p, 10); - if (p == buf) - IWL_INFO(priv, ": %s is not in decimal form.\n", buf); - else - iwl3945_hw_reg_set_txpower(priv, val); - - return count; -} - -static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, iwl3945_show_tx_power, iwl3945_store_tx_power); - -static ssize_t iwl3945_show_flags(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - return sprintf(buf, "0x%04X\n", ctx->active.flags); -} - -static ssize_t iwl3945_store_flags(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - u32 flags = simple_strtoul(buf, NULL, 0); - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - mutex_lock(&priv->mutex); - if (le32_to_cpu(ctx->staging.flags) != flags) { - /* Cancel any currently running scans... */ - if (iwl_legacy_scan_cancel_timeout(priv, 100)) - IWL_WARN(priv, "Could not cancel scan.\n"); - else { - IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n", - flags); - ctx->staging.flags = cpu_to_le32(flags); - iwl3945_commit_rxon(priv, ctx); - } - } - mutex_unlock(&priv->mutex); - - return count; -} - -static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, iwl3945_show_flags, iwl3945_store_flags); - -static ssize_t iwl3945_show_filter_flags(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - return sprintf(buf, "0x%04X\n", - le32_to_cpu(ctx->active.filter_flags)); -} - -static ssize_t iwl3945_store_filter_flags(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - u32 filter_flags = simple_strtoul(buf, NULL, 0); - - mutex_lock(&priv->mutex); - if (le32_to_cpu(ctx->staging.filter_flags) != filter_flags) { - /* Cancel any currently running scans... */ - if (iwl_legacy_scan_cancel_timeout(priv, 100)) - IWL_WARN(priv, "Could not cancel scan.\n"); - else { - IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = " - "0x%04X\n", filter_flags); - ctx->staging.filter_flags = - cpu_to_le32(filter_flags); - iwl3945_commit_rxon(priv, ctx); - } - } - mutex_unlock(&priv->mutex); - - return count; -} - -static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, iwl3945_show_filter_flags, - iwl3945_store_filter_flags); - -static ssize_t iwl3945_show_measurement(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct iwl_spectrum_notification measure_report; - u32 size = sizeof(measure_report), len = 0, ofs = 0; - u8 *data = (u8 *)&measure_report; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - if (!(priv->measurement_status & MEASUREMENT_READY)) { - spin_unlock_irqrestore(&priv->lock, flags); - return 0; - } - memcpy(&measure_report, &priv->measure_report, size); - priv->measurement_status = 0; - spin_unlock_irqrestore(&priv->lock, flags); - - while (size && (PAGE_SIZE - len)) { - hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, - PAGE_SIZE - len, 1); - len = strlen(buf); - if (PAGE_SIZE - len) - buf[len++] = '\n'; - - ofs += 16; - size -= min(size, 16U); - } - - return len; -} - -static ssize_t iwl3945_store_measurement(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - struct ieee80211_measurement_params params = { - .channel = le16_to_cpu(ctx->active.channel), - .start_time = cpu_to_le64(priv->_3945.last_tsf), - .duration = cpu_to_le16(1), - }; - u8 type = IWL_MEASURE_BASIC; - u8 buffer[32]; - u8 channel; - - if (count) { - char *p = buffer; - strncpy(buffer, buf, min(sizeof(buffer), count)); - channel = simple_strtoul(p, NULL, 0); - if (channel) - params.channel = channel; - - p = buffer; - while (*p && *p != ' ') - p++; - if (*p) - type = simple_strtoul(p + 1, NULL, 0); - } - - IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on " - "channel %d (for '%s')\n", type, params.channel, buf); - iwl3945_get_measurement(priv, ¶ms, type); - - return count; -} - -static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, - iwl3945_show_measurement, iwl3945_store_measurement); - -static ssize_t iwl3945_store_retry_rate(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - priv->retry_rate = simple_strtoul(buf, NULL, 0); - if (priv->retry_rate <= 0) - priv->retry_rate = 1; - - return count; -} - -static ssize_t iwl3945_show_retry_rate(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - return sprintf(buf, "%d", priv->retry_rate); -} - -static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, iwl3945_show_retry_rate, - iwl3945_store_retry_rate); - - -static ssize_t iwl3945_show_channels(struct device *d, - struct device_attribute *attr, char *buf) -{ - /* all this shit doesn't belong into sysfs anyway */ - return 0; -} - -static DEVICE_ATTR(channels, S_IRUSR, iwl3945_show_channels, NULL); - -static ssize_t iwl3945_show_antenna(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - return sprintf(buf, "%d\n", iwl3945_mod_params.antenna); -} - -static ssize_t iwl3945_store_antenna(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d); - int ant; - - if (count == 0) - return 0; - - if (sscanf(buf, "%1i", &ant) != 1) { - IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n"); - return count; - } - - if ((ant >= 0) && (ant <= 2)) { - IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant); - iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant; - } else - IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant); - - - return count; -} - -static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, iwl3945_show_antenna, iwl3945_store_antenna); - -static ssize_t iwl3945_show_status(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - return sprintf(buf, "0x%08x\n", (int)priv->status); -} - -static DEVICE_ATTR(status, S_IRUGO, iwl3945_show_status, NULL); - -static ssize_t iwl3945_dump_error_log(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - char *p = (char *)buf; - - if (p[0] == '1') - iwl3945_dump_nic_error_log(priv); - - return strnlen(buf, count); -} - -static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, iwl3945_dump_error_log); - -/***************************************************************************** - * - * driver setup and tear down - * - *****************************************************************************/ - -static void iwl3945_setup_deferred_work(struct iwl_priv *priv) -{ - priv->workqueue = create_singlethread_workqueue(DRV_NAME); - - init_waitqueue_head(&priv->wait_command_queue); - - INIT_WORK(&priv->restart, iwl3945_bg_restart); - INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); - INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); - INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); - INIT_DELAYED_WORK(&priv->_3945.rfkill_poll, iwl3945_rfkill_poll); - - iwl_legacy_setup_scan_deferred_work(priv); - - iwl3945_hw_setup_deferred_work(priv); - - init_timer(&priv->watchdog); - priv->watchdog.data = (unsigned long)priv; - priv->watchdog.function = iwl_legacy_bg_watchdog; - - tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) - iwl3945_irq_tasklet, (unsigned long)priv); -} - -static void iwl3945_cancel_deferred_work(struct iwl_priv *priv) -{ - iwl3945_hw_cancel_deferred_work(priv); - - cancel_delayed_work_sync(&priv->init_alive_start); - cancel_delayed_work(&priv->alive_start); - - iwl_legacy_cancel_scan_deferred_work(priv); -} - -static struct attribute *iwl3945_sysfs_entries[] = { - &dev_attr_antenna.attr, - &dev_attr_channels.attr, - &dev_attr_dump_errors.attr, - &dev_attr_flags.attr, - &dev_attr_filter_flags.attr, - &dev_attr_measurement.attr, - &dev_attr_retry_rate.attr, - &dev_attr_status.attr, - &dev_attr_temperature.attr, - &dev_attr_tx_power.attr, -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - &dev_attr_debug_level.attr, -#endif - NULL -}; - -static struct attribute_group iwl3945_attribute_group = { - .name = NULL, /* put in device directory */ - .attrs = iwl3945_sysfs_entries, -}; - -struct ieee80211_ops iwl3945_hw_ops = { - .tx = iwl3945_mac_tx, - .start = iwl3945_mac_start, - .stop = iwl3945_mac_stop, - .add_interface = iwl_legacy_mac_add_interface, - .remove_interface = iwl_legacy_mac_remove_interface, - .change_interface = iwl_legacy_mac_change_interface, - .config = iwl_legacy_mac_config, - .configure_filter = iwl3945_configure_filter, - .set_key = iwl3945_mac_set_key, - .conf_tx = iwl_legacy_mac_conf_tx, - .reset_tsf = iwl_legacy_mac_reset_tsf, - .bss_info_changed = iwl_legacy_mac_bss_info_changed, - .hw_scan = iwl_legacy_mac_hw_scan, - .sta_add = iwl3945_mac_sta_add, - .sta_remove = iwl_legacy_mac_sta_remove, - .tx_last_beacon = iwl_legacy_mac_tx_last_beacon, -}; - -static int iwl3945_init_drv(struct iwl_priv *priv) -{ - int ret; - struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; - - priv->retry_rate = 1; - priv->beacon_skb = NULL; - - spin_lock_init(&priv->sta_lock); - spin_lock_init(&priv->hcmd_lock); - - INIT_LIST_HEAD(&priv->free_frames); - - mutex_init(&priv->mutex); - - priv->ieee_channels = NULL; - priv->ieee_rates = NULL; - priv->band = IEEE80211_BAND_2GHZ; - - priv->iw_mode = NL80211_IFTYPE_STATION; - priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; - - /* initialize force reset */ - priv->force_reset.reset_duration = IWL_DELAY_NEXT_FORCE_FW_RELOAD; - - if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { - IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n", - eeprom->version); - ret = -EINVAL; - goto err; - } - ret = iwl_legacy_init_channel_map(priv); - if (ret) { - IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); - goto err; - } - - /* Set up txpower settings in driver for all channels */ - if (iwl3945_txpower_set_from_eeprom(priv)) { - ret = -EIO; - goto err_free_channel_map; - } - - ret = iwl_legacy_init_geos(priv); - if (ret) { - IWL_ERR(priv, "initializing geos failed: %d\n", ret); - goto err_free_channel_map; - } - iwl3945_init_hw_rates(priv, priv->ieee_rates); - - return 0; - -err_free_channel_map: - iwl_legacy_free_channel_map(priv); -err: - return ret; -} - -#define IWL3945_MAX_PROBE_REQUEST 200 - -static int iwl3945_setup_mac(struct iwl_priv *priv) -{ - int ret; - struct ieee80211_hw *hw = priv->hw; - - hw->rate_control_algorithm = "iwl-3945-rs"; - hw->sta_data_size = sizeof(struct iwl3945_sta_priv); - hw->vif_data_size = sizeof(struct iwl_vif_priv); - - /* Tell mac80211 our characteristics */ - hw->flags = IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_SPECTRUM_MGMT; - - hw->wiphy->interface_modes = - priv->contexts[IWL_RXON_CTX_BSS].interface_modes; - - hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | - WIPHY_FLAG_DISABLE_BEACON_HINTS | - WIPHY_FLAG_IBSS_RSN; - - hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; - /* we create the 802.11 header and a zero-length SSID element */ - hw->wiphy->max_scan_ie_len = IWL3945_MAX_PROBE_REQUEST - 24 - 2; - - /* Default value; 4 EDCA QOS priorities */ - hw->queues = 4; - - if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) - priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = - &priv->bands[IEEE80211_BAND_2GHZ]; - - if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) - priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = - &priv->bands[IEEE80211_BAND_5GHZ]; - - iwl_legacy_leds_init(priv); - - ret = ieee80211_register_hw(priv->hw); - if (ret) { - IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); - return ret; - } - priv->mac80211_registered = 1; - - return 0; -} - -static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - int err = 0, i; - struct iwl_priv *priv; - struct ieee80211_hw *hw; - struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); - struct iwl3945_eeprom *eeprom; - unsigned long flags; - - /*********************** - * 1. Allocating HW data - * ********************/ - - /* mac80211 allocates memory for this device instance, including - * space for this driver's private structure */ - hw = iwl_legacy_alloc_all(cfg); - if (hw == NULL) { - pr_err("Can not allocate network device\n"); - err = -ENOMEM; - goto out; - } - priv = hw->priv; - SET_IEEE80211_DEV(hw, &pdev->dev); - - priv->cmd_queue = IWL39_CMD_QUEUE_NUM; - - /* 3945 has only one valid context */ - priv->valid_contexts = BIT(IWL_RXON_CTX_BSS); - - for (i = 0; i < NUM_IWL_RXON_CTX; i++) - priv->contexts[i].ctxid = i; - - priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; - priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; - priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; - priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; - priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; - priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; - priv->contexts[IWL_RXON_CTX_BSS].interface_modes = - BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC); - priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; - priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; - priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; - - /* - * Disabling hardware scan means that mac80211 will perform scans - * "the hard way", rather than using device's scan. - */ - if (iwl3945_mod_params.disable_hw_scan) { - IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); - iwl3945_hw_ops.hw_scan = NULL; - } - - IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); - priv->cfg = cfg; - priv->pci_dev = pdev; - priv->inta_mask = CSR_INI_SET_MASK; - - if (iwl_legacy_alloc_traffic_mem(priv)) - IWL_ERR(priv, "Not enough memory to generate traffic log\n"); - - /*************************** - * 2. Initializing PCI bus - * *************************/ - pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | - PCIE_LINK_STATE_CLKPM); - - if (pci_enable_device(pdev)) { - err = -ENODEV; - goto out_ieee80211_free_hw; - } - - pci_set_master(pdev); - - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (!err) - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); - if (err) { - IWL_WARN(priv, "No suitable DMA available.\n"); - goto out_pci_disable_device; - } - - pci_set_drvdata(pdev, priv); - err = pci_request_regions(pdev, DRV_NAME); - if (err) - goto out_pci_disable_device; - - /*********************** - * 3. Read REV Register - * ********************/ - priv->hw_base = pci_iomap(pdev, 0, 0); - if (!priv->hw_base) { - err = -ENODEV; - goto out_pci_release_regions; - } - - IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", - (unsigned long long) pci_resource_len(pdev, 0)); - IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); - - /* We disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state */ - pci_write_config_byte(pdev, 0x41, 0x00); - - /* these spin locks will be used in apm_ops.init and EEPROM access - * we should init now - */ - spin_lock_init(&priv->reg_lock); - spin_lock_init(&priv->lock); - - /* - * stop and reset the on-board processor just in case it is in a - * strange state ... like being left stranded by a primary kernel - * and this is now the kdump kernel trying to start up - */ - iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); - - /*********************** - * 4. Read EEPROM - * ********************/ - - /* Read the EEPROM */ - err = iwl_legacy_eeprom_init(priv); - if (err) { - IWL_ERR(priv, "Unable to init EEPROM\n"); - goto out_iounmap; - } - /* MAC Address location in EEPROM same for 3945/4965 */ - eeprom = (struct iwl3945_eeprom *)priv->eeprom; - IWL_DEBUG_INFO(priv, "MAC address: %pM\n", eeprom->mac_address); - SET_IEEE80211_PERM_ADDR(priv->hw, eeprom->mac_address); - - /*********************** - * 5. Setup HW Constants - * ********************/ - /* Device-specific setup */ - if (iwl3945_hw_set_hw_params(priv)) { - IWL_ERR(priv, "failed to set hw settings\n"); - goto out_eeprom_free; - } - - /*********************** - * 6. Setup priv - * ********************/ - - err = iwl3945_init_drv(priv); - if (err) { - IWL_ERR(priv, "initializing driver failed\n"); - goto out_unset_hw_params; - } - - IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n", - priv->cfg->name); - - /*********************** - * 7. Setup Services - * ********************/ - - spin_lock_irqsave(&priv->lock, flags); - iwl_legacy_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - pci_enable_msi(priv->pci_dev); - - err = request_irq(priv->pci_dev->irq, iwl_legacy_isr, - IRQF_SHARED, DRV_NAME, priv); - if (err) { - IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); - goto out_disable_msi; - } - - err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); - if (err) { - IWL_ERR(priv, "failed to create sysfs device attributes\n"); - goto out_release_irq; - } - - iwl_legacy_set_rxon_channel(priv, - &priv->bands[IEEE80211_BAND_2GHZ].channels[5], - &priv->contexts[IWL_RXON_CTX_BSS]); - iwl3945_setup_deferred_work(priv); - iwl3945_setup_rx_handlers(priv); - iwl_legacy_power_initialize(priv); - - /********************************* - * 8. Setup and Register mac80211 - * *******************************/ - - iwl_legacy_enable_interrupts(priv); - - err = iwl3945_setup_mac(priv); - if (err) - goto out_remove_sysfs; - - err = iwl_legacy_dbgfs_register(priv, DRV_NAME); - if (err) - IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); - - /* Start monitoring the killswitch */ - queue_delayed_work(priv->workqueue, &priv->_3945.rfkill_poll, - 2 * HZ); - - return 0; - - out_remove_sysfs: - destroy_workqueue(priv->workqueue); - priv->workqueue = NULL; - sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); - out_release_irq: - free_irq(priv->pci_dev->irq, priv); - out_disable_msi: - pci_disable_msi(priv->pci_dev); - iwl_legacy_free_geos(priv); - iwl_legacy_free_channel_map(priv); - out_unset_hw_params: - iwl3945_unset_hw_params(priv); - out_eeprom_free: - iwl_legacy_eeprom_free(priv); - out_iounmap: - pci_iounmap(pdev, priv->hw_base); - out_pci_release_regions: - pci_release_regions(pdev); - out_pci_disable_device: - pci_set_drvdata(pdev, NULL); - pci_disable_device(pdev); - out_ieee80211_free_hw: - iwl_legacy_free_traffic_mem(priv); - ieee80211_free_hw(priv->hw); - out: - return err; -} - -static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) -{ - struct iwl_priv *priv = pci_get_drvdata(pdev); - unsigned long flags; - - if (!priv) - return; - - IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); - - iwl_legacy_dbgfs_unregister(priv); - - set_bit(STATUS_EXIT_PENDING, &priv->status); - - iwl_legacy_leds_exit(priv); - - if (priv->mac80211_registered) { - ieee80211_unregister_hw(priv->hw); - priv->mac80211_registered = 0; - } else { - iwl3945_down(priv); - } - - /* - * Make sure device is reset to low power before unloading driver. - * This may be redundant with iwl_down(), but there are paths to - * run iwl_down() without calling apm_ops.stop(), and there are - * paths to avoid running iwl_down() at all before leaving driver. - * This (inexpensive) call *makes sure* device is reset. - */ - iwl_legacy_apm_stop(priv); - - /* make sure we flush any pending irq or - * tasklet for the driver - */ - spin_lock_irqsave(&priv->lock, flags); - iwl_legacy_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - iwl3945_synchronize_irq(priv); - - sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); - - cancel_delayed_work_sync(&priv->_3945.rfkill_poll); - - iwl3945_dealloc_ucode_pci(priv); - - if (priv->rxq.bd) - iwl3945_rx_queue_free(priv, &priv->rxq); - iwl3945_hw_txq_ctx_free(priv); - - iwl3945_unset_hw_params(priv); - - /*netif_stop_queue(dev); */ - flush_workqueue(priv->workqueue); - - /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes - * priv->workqueue... so we can't take down the workqueue - * until now... */ - destroy_workqueue(priv->workqueue); - priv->workqueue = NULL; - iwl_legacy_free_traffic_mem(priv); - - free_irq(pdev->irq, priv); - pci_disable_msi(pdev); - - pci_iounmap(pdev, priv->hw_base); - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - - iwl_legacy_free_channel_map(priv); - iwl_legacy_free_geos(priv); - kfree(priv->scan_cmd); - if (priv->beacon_skb) - dev_kfree_skb(priv->beacon_skb); - - ieee80211_free_hw(priv->hw); -} - - -/***************************************************************************** - * - * driver and module entry point - * - *****************************************************************************/ - -static struct pci_driver iwl3945_driver = { - .name = DRV_NAME, - .id_table = iwl3945_hw_card_ids, - .probe = iwl3945_pci_probe, - .remove = __devexit_p(iwl3945_pci_remove), - .driver.pm = IWL_LEGACY_PM_OPS, -}; - -static int __init iwl3945_init(void) -{ - - int ret; - pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); - pr_info(DRV_COPYRIGHT "\n"); - - ret = iwl3945_rate_control_register(); - if (ret) { - pr_err("Unable to register rate control algorithm: %d\n", ret); - return ret; - } - - ret = pci_register_driver(&iwl3945_driver); - if (ret) { - pr_err("Unable to initialize PCI module\n"); - goto error_register; - } - - return ret; - -error_register: - iwl3945_rate_control_unregister(); - return ret; -} - -static void __exit iwl3945_exit(void) -{ - pci_unregister_driver(&iwl3945_driver); - iwl3945_rate_control_unregister(); -} - -MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX)); - -module_param_named(antenna, iwl3945_mod_params.antenna, int, S_IRUGO); -MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); -module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, S_IRUGO); -MODULE_PARM_DESC(swcrypto, - "using software crypto (default 1 [software])"); -module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, - int, S_IRUGO); -MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)"); -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -module_param_named(debug, iwlegacy_debug_level, uint, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "debug output mask"); -#endif -module_param_named(fw_restart, iwl3945_mod_params.restart_fw, int, S_IRUGO); -MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); - -module_exit(iwl3945_exit); -module_init(iwl3945_init); diff --git a/drivers/net/wireless/iwlegacy/iwl4965-base.c b/drivers/net/wireless/iwlegacy/iwl4965-base.c deleted file mode 100644 index d2fba9eae153..000000000000 --- a/drivers/net/wireless/iwlegacy/iwl4965-base.c +++ /dev/null @@ -1,3281 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. - * - * Portions of this file are derived from the ipw3945 project, as well - * as portions of the ieee80211 subsystem header files. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/pci-aspm.h> -#include <linux/slab.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/firmware.h> -#include <linux/etherdevice.h> -#include <linux/if_arp.h> - -#include <net/mac80211.h> - -#include <asm/div64.h> - -#define DRV_NAME "iwl4965" - -#include "iwl-eeprom.h" -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-io.h" -#include "iwl-helpers.h" -#include "iwl-sta.h" -#include "iwl-4965-calib.h" -#include "iwl-4965.h" -#include "iwl-4965-led.h" - - -/****************************************************************************** - * - * module boiler plate - * - ******************************************************************************/ - -/* - * module name, copyright, version, etc. - */ -#define DRV_DESCRIPTION "Intel(R) Wireless WiFi 4965 driver for Linux" - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -#define VD "d" -#else -#define VD -#endif - -#define DRV_VERSION IWLWIFI_VERSION VD - - -MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("iwl4965"); - -void iwl4965_update_chain_flags(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx; - - if (priv->cfg->ops->hcmd->set_rxon_chain) { - for_each_context(priv, ctx) { - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - if (ctx->active.rx_chain != ctx->staging.rx_chain) - iwl_legacy_commit_rxon(priv, ctx); - } - } -} - -static void iwl4965_clear_free_frames(struct iwl_priv *priv) -{ - struct list_head *element; - - IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", - priv->frames_count); - - while (!list_empty(&priv->free_frames)) { - element = priv->free_frames.next; - list_del(element); - kfree(list_entry(element, struct iwl_frame, list)); - priv->frames_count--; - } - - if (priv->frames_count) { - IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", - priv->frames_count); - priv->frames_count = 0; - } -} - -static struct iwl_frame *iwl4965_get_free_frame(struct iwl_priv *priv) -{ - struct iwl_frame *frame; - struct list_head *element; - if (list_empty(&priv->free_frames)) { - frame = kzalloc(sizeof(*frame), GFP_KERNEL); - if (!frame) { - IWL_ERR(priv, "Could not allocate frame!\n"); - return NULL; - } - - priv->frames_count++; - return frame; - } - - element = priv->free_frames.next; - list_del(element); - return list_entry(element, struct iwl_frame, list); -} - -static void iwl4965_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) -{ - memset(frame, 0, sizeof(*frame)); - list_add(&frame->list, &priv->free_frames); -} - -static u32 iwl4965_fill_beacon_frame(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, - int left) -{ - lockdep_assert_held(&priv->mutex); - - if (!priv->beacon_skb) - return 0; - - if (priv->beacon_skb->len > left) - return 0; - - memcpy(hdr, priv->beacon_skb->data, priv->beacon_skb->len); - - return priv->beacon_skb->len; -} - -/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ -static void iwl4965_set_beacon_tim(struct iwl_priv *priv, - struct iwl_tx_beacon_cmd *tx_beacon_cmd, - u8 *beacon, u32 frame_size) -{ - u16 tim_idx; - struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; - - /* - * The index is relative to frame start but we start looking at the - * variable-length part of the beacon. - */ - tim_idx = mgmt->u.beacon.variable - beacon; - - /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ - while ((tim_idx < (frame_size - 2)) && - (beacon[tim_idx] != WLAN_EID_TIM)) - tim_idx += beacon[tim_idx+1] + 2; - - /* If TIM field was found, set variables */ - if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { - tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); - tx_beacon_cmd->tim_size = beacon[tim_idx+1]; - } else - IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); -} - -static unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, - struct iwl_frame *frame) -{ - struct iwl_tx_beacon_cmd *tx_beacon_cmd; - u32 frame_size; - u32 rate_flags; - u32 rate; - /* - * We have to set up the TX command, the TX Beacon command, and the - * beacon contents. - */ - - lockdep_assert_held(&priv->mutex); - - if (!priv->beacon_ctx) { - IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); - return 0; - } - - /* Initialize memory */ - tx_beacon_cmd = &frame->u.beacon; - memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); - - /* Set up TX beacon contents */ - frame_size = iwl4965_fill_beacon_frame(priv, tx_beacon_cmd->frame, - sizeof(frame->u) - sizeof(*tx_beacon_cmd)); - if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE)) - return 0; - if (!frame_size) - return 0; - - /* Set up TX command fields */ - tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); - tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; - tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | - TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; - - /* Set up TX beacon command fields */ - iwl4965_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame, - frame_size); - - /* Set up packet rate and flags */ - rate = iwl_legacy_get_lowest_plcp(priv, priv->beacon_ctx); - priv->mgmt_tx_ant = iwl4965_toggle_tx_ant(priv, priv->mgmt_tx_ant, - priv->hw_params.valid_tx_ant); - rate_flags = iwl4965_ant_idx_to_flags(priv->mgmt_tx_ant); - if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE)) - rate_flags |= RATE_MCS_CCK_MSK; - tx_beacon_cmd->tx.rate_n_flags = iwl4965_hw_set_rate_n_flags(rate, - rate_flags); - - return sizeof(*tx_beacon_cmd) + frame_size; -} - -int iwl4965_send_beacon_cmd(struct iwl_priv *priv) -{ - struct iwl_frame *frame; - unsigned int frame_size; - int rc; - - frame = iwl4965_get_free_frame(priv); - if (!frame) { - IWL_ERR(priv, "Could not obtain free frame buffer for beacon " - "command.\n"); - return -ENOMEM; - } - - frame_size = iwl4965_hw_get_beacon_cmd(priv, frame); - if (!frame_size) { - IWL_ERR(priv, "Error configuring the beacon command\n"); - iwl4965_free_frame(priv, frame); - return -EINVAL; - } - - rc = iwl_legacy_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, - &frame->u.cmd[0]); - - iwl4965_free_frame(priv, frame); - - return rc; -} - -static inline dma_addr_t iwl4965_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx) -{ - struct iwl_tfd_tb *tb = &tfd->tbs[idx]; - - dma_addr_t addr = get_unaligned_le32(&tb->lo); - if (sizeof(dma_addr_t) > sizeof(u32)) - addr |= - ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16; - - return addr; -} - -static inline u16 iwl4965_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx) -{ - struct iwl_tfd_tb *tb = &tfd->tbs[idx]; - - return le16_to_cpu(tb->hi_n_len) >> 4; -} - -static inline void iwl4965_tfd_set_tb(struct iwl_tfd *tfd, u8 idx, - dma_addr_t addr, u16 len) -{ - struct iwl_tfd_tb *tb = &tfd->tbs[idx]; - u16 hi_n_len = len << 4; - - put_unaligned_le32(addr, &tb->lo); - if (sizeof(dma_addr_t) > sizeof(u32)) - hi_n_len |= ((addr >> 16) >> 16) & 0xF; - - tb->hi_n_len = cpu_to_le16(hi_n_len); - - tfd->num_tbs = idx + 1; -} - -static inline u8 iwl4965_tfd_get_num_tbs(struct iwl_tfd *tfd) -{ - return tfd->num_tbs & 0x1f; -} - -/** - * iwl4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr] - * @priv - driver private data - * @txq - tx queue - * - * Does NOT advance any TFD circular buffer read/write indexes - * Does NOT free the TFD itself (which is within circular buffer) - */ -void iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) -{ - struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds; - struct iwl_tfd *tfd; - struct pci_dev *dev = priv->pci_dev; - int index = txq->q.read_ptr; - int i; - int num_tbs; - - tfd = &tfd_tmp[index]; - - /* Sanity check on number of chunks */ - num_tbs = iwl4965_tfd_get_num_tbs(tfd); - - if (num_tbs >= IWL_NUM_OF_TBS) { - IWL_ERR(priv, "Too many chunks: %i\n", num_tbs); - /* @todo issue fatal error, it is quite serious situation */ - return; - } - - /* Unmap tx_cmd */ - if (num_tbs) - pci_unmap_single(dev, - dma_unmap_addr(&txq->meta[index], mapping), - dma_unmap_len(&txq->meta[index], len), - PCI_DMA_BIDIRECTIONAL); - - /* Unmap chunks, if any. */ - for (i = 1; i < num_tbs; i++) - pci_unmap_single(dev, iwl4965_tfd_tb_get_addr(tfd, i), - iwl4965_tfd_tb_get_len(tfd, i), - PCI_DMA_TODEVICE); - - /* free SKB */ - if (txq->txb) { - struct sk_buff *skb; - - skb = txq->txb[txq->q.read_ptr].skb; - - /* can be called from irqs-disabled context */ - if (skb) { - dev_kfree_skb_any(skb); - txq->txb[txq->q.read_ptr].skb = NULL; - } - } -} - -int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - dma_addr_t addr, u16 len, - u8 reset, u8 pad) -{ - struct iwl_queue *q; - struct iwl_tfd *tfd, *tfd_tmp; - u32 num_tbs; - - q = &txq->q; - tfd_tmp = (struct iwl_tfd *)txq->tfds; - tfd = &tfd_tmp[q->write_ptr]; - - if (reset) - memset(tfd, 0, sizeof(*tfd)); - - num_tbs = iwl4965_tfd_get_num_tbs(tfd); - - /* Each TFD can point to a maximum 20 Tx buffers */ - if (num_tbs >= IWL_NUM_OF_TBS) { - IWL_ERR(priv, "Error can not send more than %d chunks\n", - IWL_NUM_OF_TBS); - return -EINVAL; - } - - BUG_ON(addr & ~DMA_BIT_MASK(36)); - if (unlikely(addr & ~IWL_TX_DMA_MASK)) - IWL_ERR(priv, "Unaligned address = %llx\n", - (unsigned long long)addr); - - iwl4965_tfd_set_tb(tfd, num_tbs, addr, len); - - return 0; -} - -/* - * Tell nic where to find circular buffer of Tx Frame Descriptors for - * given Tx queue, and enable the DMA channel used for that queue. - * - * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA - * channels supported in hardware. - */ -int iwl4965_hw_tx_queue_init(struct iwl_priv *priv, - struct iwl_tx_queue *txq) -{ - int txq_id = txq->q.id; - - /* Circular buffer (TFD queue in DRAM) physical base address */ - iwl_legacy_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id), - txq->q.dma_addr >> 8); - - return 0; -} - -/****************************************************************************** - * - * Generic RX handler implementations - * - ******************************************************************************/ -static void iwl4965_rx_reply_alive(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_alive_resp *palive; - struct delayed_work *pwork; - - palive = &pkt->u.alive_frame; - - IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " - "0x%01X 0x%01X\n", - palive->is_valid, palive->ver_type, - palive->ver_subtype); - - if (palive->ver_subtype == INITIALIZE_SUBTYPE) { - IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); - memcpy(&priv->card_alive_init, - &pkt->u.alive_frame, - sizeof(struct iwl_init_alive_resp)); - pwork = &priv->init_alive_start; - } else { - IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); - memcpy(&priv->card_alive, &pkt->u.alive_frame, - sizeof(struct iwl_alive_resp)); - pwork = &priv->alive_start; - } - - /* We delay the ALIVE response by 5ms to - * give the HW RF Kill time to activate... */ - if (palive->is_valid == UCODE_VALID_OK) - queue_delayed_work(priv->workqueue, pwork, - msecs_to_jiffies(5)); - else - IWL_WARN(priv, "uCode did not respond OK.\n"); -} - -/** - * iwl4965_bg_statistics_periodic - Timer callback to queue statistics - * - * This callback is provided in order to send a statistics request. - * - * This timer function is continually reset to execute within - * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION - * was received. We need to ensure we receive the statistics in order - * to update the temperature used for calibrating the TXPOWER. - */ -static void iwl4965_bg_statistics_periodic(unsigned long data) -{ - struct iwl_priv *priv = (struct iwl_priv *)data; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - /* dont send host command if rf-kill is on */ - if (!iwl_legacy_is_ready_rf(priv)) - return; - - iwl_legacy_send_statistics_request(priv, CMD_ASYNC, false); -} - -static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl4965_beacon_notif *beacon = - (struct iwl4965_beacon_notif *)pkt->u.raw; -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); - - IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " - "tsf %d %d rate %d\n", - le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, - beacon->beacon_notify_hdr.failure_frame, - le32_to_cpu(beacon->ibss_mgr_status), - le32_to_cpu(beacon->high_tsf), - le32_to_cpu(beacon->low_tsf), rate); -#endif - - priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); -} - -static void iwl4965_perform_ct_kill_task(struct iwl_priv *priv) -{ - unsigned long flags; - - IWL_DEBUG_POWER(priv, "Stop all queues\n"); - - if (priv->mac80211_registered) - ieee80211_stop_queues(priv->hw); - - iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, - CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); - iwl_read32(priv, CSR_UCODE_DRV_GP1); - - spin_lock_irqsave(&priv->reg_lock, flags); - if (!iwl_grab_nic_access(priv)) - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, flags); -} - -/* Handle notification from uCode that card's power state is changing - * due to software, hardware, or critical temperature RFKILL */ -static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); - unsigned long status = priv->status; - - IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n", - (flags & HW_CARD_DISABLED) ? "Kill" : "On", - (flags & SW_CARD_DISABLED) ? "Kill" : "On", - (flags & CT_CARD_DISABLED) ? - "Reached" : "Not reached"); - - if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | - CT_CARD_DISABLED)) { - - iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, - CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); - - iwl_legacy_write_direct32(priv, HBUS_TARG_MBX_C, - HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); - - if (!(flags & RXON_CARD_DISABLED)) { - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); - iwl_legacy_write_direct32(priv, HBUS_TARG_MBX_C, - HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); - } - } - - if (flags & CT_CARD_DISABLED) - iwl4965_perform_ct_kill_task(priv); - - if (flags & HW_CARD_DISABLED) - set_bit(STATUS_RF_KILL_HW, &priv->status); - else - clear_bit(STATUS_RF_KILL_HW, &priv->status); - - if (!(flags & RXON_CARD_DISABLED)) - iwl_legacy_scan_cancel(priv); - - if ((test_bit(STATUS_RF_KILL_HW, &status) != - test_bit(STATUS_RF_KILL_HW, &priv->status))) - wiphy_rfkill_set_hw_state(priv->hw->wiphy, - test_bit(STATUS_RF_KILL_HW, &priv->status)); - else - wake_up(&priv->wait_command_queue); -} - -/** - * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks - * - * Setup the RX handlers for each of the reply types sent from the uCode - * to the host. - * - * This function chains into the hardware specific files for them to setup - * any hardware specific handlers as well. - */ -static void iwl4965_setup_rx_handlers(struct iwl_priv *priv) -{ - priv->rx_handlers[REPLY_ALIVE] = iwl4965_rx_reply_alive; - priv->rx_handlers[REPLY_ERROR] = iwl_legacy_rx_reply_error; - priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_legacy_rx_csa; - priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = - iwl_legacy_rx_spectrum_measure_notif; - priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_legacy_rx_pm_sleep_notif; - priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = - iwl_legacy_rx_pm_debug_statistics_notif; - priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif; - - /* - * The same handler is used for both the REPLY to a discrete - * statistics request from the host as well as for the periodic - * statistics notifications (after received beacons) from the uCode. - */ - priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_reply_statistics; - priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_rx_statistics; - - iwl_legacy_setup_rx_scan_handlers(priv); - - /* status change handler */ - priv->rx_handlers[CARD_STATE_NOTIFICATION] = - iwl4965_rx_card_state_notif; - - priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = - iwl4965_rx_missed_beacon_notif; - /* Rx handlers */ - priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl4965_rx_reply_rx_phy; - priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl4965_rx_reply_rx; - /* block ack */ - priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba; - /* Set up hardware specific Rx handlers */ - priv->cfg->ops->lib->rx_handler_setup(priv); -} - -/** - * iwl4965_rx_handle - Main entry function for receiving responses from uCode - * - * Uses the priv->rx_handlers callback function array to invoke - * the appropriate handlers, including command responses, - * frame-received notifications, and other notifications. - */ -void iwl4965_rx_handle(struct iwl_priv *priv) -{ - struct iwl_rx_mem_buffer *rxb; - struct iwl_rx_packet *pkt; - struct iwl_rx_queue *rxq = &priv->rxq; - u32 r, i; - int reclaim; - unsigned long flags; - u8 fill_rx = 0; - u32 count = 8; - int total_empty; - - /* uCode's read index (stored in shared DRAM) indicates the last Rx - * buffer that the driver may process (last buffer filled by ucode). */ - r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; - i = rxq->read; - - /* Rx interrupt, but nothing sent from uCode */ - if (i == r) - IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); - - /* calculate total frames need to be restock after handling RX */ - total_empty = r - rxq->write_actual; - if (total_empty < 0) - total_empty += RX_QUEUE_SIZE; - - if (total_empty > (RX_QUEUE_SIZE / 2)) - fill_rx = 1; - - while (i != r) { - int len; - - rxb = rxq->queue[i]; - - /* If an RXB doesn't have a Rx queue slot associated with it, - * then a bug has been introduced in the queue refilling - * routines -- catch it here */ - BUG_ON(rxb == NULL); - - rxq->queue[i] = NULL; - - pci_unmap_page(priv->pci_dev, rxb->page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - pkt = rxb_addr(rxb); - - len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - len += sizeof(u32); /* account for status word */ - trace_iwlwifi_legacy_dev_rx(priv, pkt, len); - - /* Reclaim a command buffer only if this packet is a response - * to a (driver-originated) command. - * If the packet (e.g. Rx frame) originated from uCode, - * there is no command buffer to reclaim. - * Ucode should set SEQ_RX_FRAME bit if ucode-originated, - * but apparently a few don't get set; catch them here. */ - reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && - (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && - (pkt->hdr.cmd != REPLY_RX) && - (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && - (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && - (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && - (pkt->hdr.cmd != REPLY_TX); - - /* Based on type of command response or notification, - * handle those that need handling via function in - * rx_handlers table. See iwl4965_setup_rx_handlers() */ - if (priv->rx_handlers[pkt->hdr.cmd]) { - IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, - i, iwl_legacy_get_cmd_string(pkt->hdr.cmd), - pkt->hdr.cmd); - priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; - priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); - } else { - /* No handling needed */ - IWL_DEBUG_RX(priv, - "r %d i %d No handler needed for %s, 0x%02x\n", - r, i, iwl_legacy_get_cmd_string(pkt->hdr.cmd), - pkt->hdr.cmd); - } - - /* - * XXX: After here, we should always check rxb->page - * against NULL before touching it or its virtual - * memory (pkt). Because some rx_handler might have - * already taken or freed the pages. - */ - - if (reclaim) { - /* Invoke any callbacks, transfer the buffer to caller, - * and fire off the (possibly) blocking iwl_legacy_send_cmd() - * as we reclaim the driver command queue */ - if (rxb->page) - iwl_legacy_tx_cmd_complete(priv, rxb); - else - IWL_WARN(priv, "Claim null rxb?\n"); - } - - /* Reuse the page if possible. For notification packets and - * SKBs that fail to Rx correctly, add them back into the - * rx_free list for reuse later. */ - spin_lock_irqsave(&rxq->lock, flags); - if (rxb->page != NULL) { - rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page, - 0, PAGE_SIZE << priv->hw_params.rx_page_order, - PCI_DMA_FROMDEVICE); - list_add_tail(&rxb->list, &rxq->rx_free); - rxq->free_count++; - } else - list_add_tail(&rxb->list, &rxq->rx_used); - - spin_unlock_irqrestore(&rxq->lock, flags); - - i = (i + 1) & RX_QUEUE_MASK; - /* If there are a lot of unused frames, - * restock the Rx queue so ucode wont assert. */ - if (fill_rx) { - count++; - if (count >= 8) { - rxq->read = i; - iwl4965_rx_replenish_now(priv); - count = 0; - } - } - } - - /* Backtrack one entry */ - rxq->read = i; - if (fill_rx) - iwl4965_rx_replenish_now(priv); - else - iwl4965_rx_queue_restock(priv); -} - -/* call this function to flush any scheduled tasklet */ -static inline void iwl4965_synchronize_irq(struct iwl_priv *priv) -{ - /* wait to make sure we flush pending tasklet*/ - synchronize_irq(priv->pci_dev->irq); - tasklet_kill(&priv->irq_tasklet); -} - -static void iwl4965_irq_tasklet(struct iwl_priv *priv) -{ - u32 inta, handled = 0; - u32 inta_fh; - unsigned long flags; - u32 i; -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - u32 inta_mask; -#endif - - spin_lock_irqsave(&priv->lock, flags); - - /* Ack/clear/reset pending uCode interrupts. - * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, - * and will clear only when CSR_FH_INT_STATUS gets cleared. */ - inta = iwl_read32(priv, CSR_INT); - iwl_write32(priv, CSR_INT, inta); - - /* Ack/clear/reset pending flow-handler (DMA) interrupts. - * Any new interrupts that happen after this, either while we're - * in this tasklet, or later, will show up in next ISR/tasklet. */ - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (iwl_legacy_get_debug_level(priv) & IWL_DL_ISR) { - /* just for debug */ - inta_mask = iwl_read32(priv, CSR_INT_MASK); - IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", - inta, inta_mask, inta_fh); - } -#endif - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not - * atomic, make sure that inta covers all the interrupts that - * we've discovered, even if FH interrupt came in just after - * reading CSR_INT. */ - if (inta_fh & CSR49_FH_INT_RX_MASK) - inta |= CSR_INT_BIT_FH_RX; - if (inta_fh & CSR49_FH_INT_TX_MASK) - inta |= CSR_INT_BIT_FH_TX; - - /* Now service all interrupt bits discovered above. */ - if (inta & CSR_INT_BIT_HW_ERR) { - IWL_ERR(priv, "Hardware error detected. Restarting.\n"); - - /* Tell the device to stop sending interrupts */ - iwl_legacy_disable_interrupts(priv); - - priv->isr_stats.hw++; - iwl_legacy_irq_handle_error(priv); - - handled |= CSR_INT_BIT_HW_ERR; - - return; - } - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) { - /* NIC fires this, but we don't use it, redundant with WAKEUP */ - if (inta & CSR_INT_BIT_SCD) { - IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " - "the frame/frames.\n"); - priv->isr_stats.sch++; - } - - /* Alive notification via Rx interrupt will do the real work */ - if (inta & CSR_INT_BIT_ALIVE) { - IWL_DEBUG_ISR(priv, "Alive interrupt\n"); - priv->isr_stats.alive++; - } - } -#endif - /* Safely ignore these bits for debug checks below */ - inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); - - /* HW RF KILL switch toggled */ - if (inta & CSR_INT_BIT_RF_KILL) { - int hw_rf_kill = 0; - if (!(iwl_read32(priv, CSR_GP_CNTRL) & - CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) - hw_rf_kill = 1; - - IWL_WARN(priv, "RF_KILL bit toggled to %s.\n", - hw_rf_kill ? "disable radio" : "enable radio"); - - priv->isr_stats.rfkill++; - - /* driver only loads ucode once setting the interface up. - * the driver allows loading the ucode even if the radio - * is killed. Hence update the killswitch state here. The - * rfkill handler will care about restarting if needed. - */ - if (!test_bit(STATUS_ALIVE, &priv->status)) { - if (hw_rf_kill) - set_bit(STATUS_RF_KILL_HW, &priv->status); - else - clear_bit(STATUS_RF_KILL_HW, &priv->status); - wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); - } - - handled |= CSR_INT_BIT_RF_KILL; - } - - /* Chip got too hot and stopped itself */ - if (inta & CSR_INT_BIT_CT_KILL) { - IWL_ERR(priv, "Microcode CT kill error detected.\n"); - priv->isr_stats.ctkill++; - handled |= CSR_INT_BIT_CT_KILL; - } - - /* Error detected by uCode */ - if (inta & CSR_INT_BIT_SW_ERR) { - IWL_ERR(priv, "Microcode SW error detected. " - " Restarting 0x%X.\n", inta); - priv->isr_stats.sw++; - iwl_legacy_irq_handle_error(priv); - handled |= CSR_INT_BIT_SW_ERR; - } - - /* - * uCode wakes up after power-down sleep. - * Tell device about any new tx or host commands enqueued, - * and about any Rx buffers made available while asleep. - */ - if (inta & CSR_INT_BIT_WAKEUP) { - IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); - iwl_legacy_rx_queue_update_write_ptr(priv, &priv->rxq); - for (i = 0; i < priv->hw_params.max_txq_num; i++) - iwl_legacy_txq_update_write_ptr(priv, &priv->txq[i]); - priv->isr_stats.wakeup++; - handled |= CSR_INT_BIT_WAKEUP; - } - - /* All uCode command responses, including Tx command responses, - * Rx "responses" (frame-received notification), and other - * notifications from uCode come through here*/ - if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { - iwl4965_rx_handle(priv); - priv->isr_stats.rx++; - handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); - } - - /* This "Tx" DMA channel is used only for loading uCode */ - if (inta & CSR_INT_BIT_FH_TX) { - IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); - priv->isr_stats.tx++; - handled |= CSR_INT_BIT_FH_TX; - /* Wake up uCode load routine, now that load is complete */ - priv->ucode_write_complete = 1; - wake_up(&priv->wait_command_queue); - } - - if (inta & ~handled) { - IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); - priv->isr_stats.unhandled++; - } - - if (inta & ~(priv->inta_mask)) { - IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", - inta & ~priv->inta_mask); - IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); - } - - /* Re-enable all interrupts */ - /* only Re-enable if disabled by irq */ - if (test_bit(STATUS_INT_ENABLED, &priv->status)) - iwl_legacy_enable_interrupts(priv); - /* Re-enable RF_KILL if it occurred */ - else if (handled & CSR_INT_BIT_RF_KILL) - iwl_legacy_enable_rfkill_int(priv); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) { - inta = iwl_read32(priv, CSR_INT); - inta_mask = iwl_read32(priv, CSR_INT_MASK); - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - IWL_DEBUG_ISR(priv, - "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " - "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); - } -#endif -} - -/***************************************************************************** - * - * sysfs attributes - * - *****************************************************************************/ - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - -/* - * The following adds a new attribute to the sysfs representation - * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) - * used for controlling the debug level. - * - * See the level definitions in iwl for details. - * - * The debug_level being managed using sysfs below is a per device debug - * level that is used instead of the global debug level if it (the per - * device debug level) is set. - */ -static ssize_t iwl4965_show_debug_level(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - return sprintf(buf, "0x%08X\n", iwl_legacy_get_debug_level(priv)); -} -static ssize_t iwl4965_store_debug_level(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - unsigned long val; - int ret; - - ret = strict_strtoul(buf, 0, &val); - if (ret) - IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); - else { - priv->debug_level = val; - if (iwl_legacy_alloc_traffic_mem(priv)) - IWL_ERR(priv, - "Not enough memory to generate traffic log\n"); - } - return strnlen(buf, count); -} - -static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, - iwl4965_show_debug_level, iwl4965_store_debug_level); - - -#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */ - - -static ssize_t iwl4965_show_temperature(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - if (!iwl_legacy_is_alive(priv)) - return -EAGAIN; - - return sprintf(buf, "%d\n", priv->temperature); -} - -static DEVICE_ATTR(temperature, S_IRUGO, iwl4965_show_temperature, NULL); - -static ssize_t iwl4965_show_tx_power(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - if (!iwl_legacy_is_ready_rf(priv)) - return sprintf(buf, "off\n"); - else - return sprintf(buf, "%d\n", priv->tx_power_user_lmt); -} - -static ssize_t iwl4965_store_tx_power(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - unsigned long val; - int ret; - - ret = strict_strtoul(buf, 10, &val); - if (ret) - IWL_INFO(priv, "%s is not in decimal form.\n", buf); - else { - ret = iwl_legacy_set_tx_power(priv, val, false); - if (ret) - IWL_ERR(priv, "failed setting tx power (0x%d).\n", - ret); - else - ret = count; - } - return ret; -} - -static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, - iwl4965_show_tx_power, iwl4965_store_tx_power); - -static struct attribute *iwl_sysfs_entries[] = { - &dev_attr_temperature.attr, - &dev_attr_tx_power.attr, -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - &dev_attr_debug_level.attr, -#endif - NULL -}; - -static struct attribute_group iwl_attribute_group = { - .name = NULL, /* put in device directory */ - .attrs = iwl_sysfs_entries, -}; - -/****************************************************************************** - * - * uCode download functions - * - ******************************************************************************/ - -static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv) -{ - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_code); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); - iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_boot); -} - -static void iwl4965_nic_start(struct iwl_priv *priv) -{ - /* Remove all resets to allow NIC to operate */ - iwl_write32(priv, CSR_RESET, 0); -} - -static void iwl4965_ucode_callback(const struct firmware *ucode_raw, - void *context); -static int iwl4965_mac_setup_register(struct iwl_priv *priv, - u32 max_probe_length); - -static int __must_check iwl4965_request_firmware(struct iwl_priv *priv, bool first) -{ - const char *name_pre = priv->cfg->fw_name_pre; - char tag[8]; - - if (first) { - priv->fw_index = priv->cfg->ucode_api_max; - sprintf(tag, "%d", priv->fw_index); - } else { - priv->fw_index--; - sprintf(tag, "%d", priv->fw_index); - } - - if (priv->fw_index < priv->cfg->ucode_api_min) { - IWL_ERR(priv, "no suitable firmware found!\n"); - return -ENOENT; - } - - sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); - - IWL_DEBUG_INFO(priv, "attempting to load firmware '%s'\n", - priv->firmware_name); - - return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, - &priv->pci_dev->dev, GFP_KERNEL, priv, - iwl4965_ucode_callback); -} - -struct iwl4965_firmware_pieces { - const void *inst, *data, *init, *init_data, *boot; - size_t inst_size, data_size, init_size, init_data_size, boot_size; -}; - -static int iwl4965_load_firmware(struct iwl_priv *priv, - const struct firmware *ucode_raw, - struct iwl4965_firmware_pieces *pieces) -{ - struct iwl_ucode_header *ucode = (void *)ucode_raw->data; - u32 api_ver, hdr_size; - const u8 *src; - - priv->ucode_ver = le32_to_cpu(ucode->ver); - api_ver = IWL_UCODE_API(priv->ucode_ver); - - switch (api_ver) { - default: - case 0: - case 1: - case 2: - hdr_size = 24; - if (ucode_raw->size < hdr_size) { - IWL_ERR(priv, "File size too small!\n"); - return -EINVAL; - } - pieces->inst_size = le32_to_cpu(ucode->v1.inst_size); - pieces->data_size = le32_to_cpu(ucode->v1.data_size); - pieces->init_size = le32_to_cpu(ucode->v1.init_size); - pieces->init_data_size = - le32_to_cpu(ucode->v1.init_data_size); - pieces->boot_size = le32_to_cpu(ucode->v1.boot_size); - src = ucode->v1.data; - break; - } - - /* Verify size of file vs. image size info in file's header */ - if (ucode_raw->size != hdr_size + pieces->inst_size + - pieces->data_size + pieces->init_size + - pieces->init_data_size + pieces->boot_size) { - - IWL_ERR(priv, - "uCode file size %d does not match expected size\n", - (int)ucode_raw->size); - return -EINVAL; - } - - pieces->inst = src; - src += pieces->inst_size; - pieces->data = src; - src += pieces->data_size; - pieces->init = src; - src += pieces->init_size; - pieces->init_data = src; - src += pieces->init_data_size; - pieces->boot = src; - src += pieces->boot_size; - - return 0; -} - -/** - * iwl4965_ucode_callback - callback when firmware was loaded - * - * If loaded successfully, copies the firmware into buffers - * for the card to fetch (via DMA). - */ -static void -iwl4965_ucode_callback(const struct firmware *ucode_raw, void *context) -{ - struct iwl_priv *priv = context; - struct iwl_ucode_header *ucode; - int err; - struct iwl4965_firmware_pieces pieces; - const unsigned int api_max = priv->cfg->ucode_api_max; - const unsigned int api_min = priv->cfg->ucode_api_min; - u32 api_ver; - - u32 max_probe_length = 200; - u32 standard_phy_calibration_size = - IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; - - memset(&pieces, 0, sizeof(pieces)); - - if (!ucode_raw) { - if (priv->fw_index <= priv->cfg->ucode_api_max) - IWL_ERR(priv, - "request for firmware file '%s' failed.\n", - priv->firmware_name); - goto try_again; - } - - IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", - priv->firmware_name, ucode_raw->size); - - /* Make sure that we got at least the API version number */ - if (ucode_raw->size < 4) { - IWL_ERR(priv, "File size way too small!\n"); - goto try_again; - } - - /* Data from ucode file: header followed by uCode images */ - ucode = (struct iwl_ucode_header *)ucode_raw->data; - - err = iwl4965_load_firmware(priv, ucode_raw, &pieces); - - if (err) - goto try_again; - - api_ver = IWL_UCODE_API(priv->ucode_ver); - - /* - * api_ver should match the api version forming part of the - * firmware filename ... but we don't check for that and only rely - * on the API version read from firmware header from here on forward - */ - if (api_ver < api_min || api_ver > api_max) { - IWL_ERR(priv, - "Driver unable to support your firmware API. " - "Driver supports v%u, firmware is v%u.\n", - api_max, api_ver); - goto try_again; - } - - if (api_ver != api_max) - IWL_ERR(priv, - "Firmware has old API version. Expected v%u, " - "got v%u. New firmware can be obtained " - "from http://www.intellinuxwireless.org.\n", - api_max, api_ver); - - IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", - IWL_UCODE_MAJOR(priv->ucode_ver), - IWL_UCODE_MINOR(priv->ucode_ver), - IWL_UCODE_API(priv->ucode_ver), - IWL_UCODE_SERIAL(priv->ucode_ver)); - - snprintf(priv->hw->wiphy->fw_version, - sizeof(priv->hw->wiphy->fw_version), - "%u.%u.%u.%u", - IWL_UCODE_MAJOR(priv->ucode_ver), - IWL_UCODE_MINOR(priv->ucode_ver), - IWL_UCODE_API(priv->ucode_ver), - IWL_UCODE_SERIAL(priv->ucode_ver)); - - /* - * For any of the failures below (before allocating pci memory) - * we will try to load a version with a smaller API -- maybe the - * user just got a corrupted version of the latest API. - */ - - IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", - priv->ucode_ver); - IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n", - pieces.inst_size); - IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n", - pieces.data_size); - IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n", - pieces.init_size); - IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n", - pieces.init_data_size); - IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %Zd\n", - pieces.boot_size); - - /* Verify that uCode images will fit in card's SRAM */ - if (pieces.inst_size > priv->hw_params.max_inst_size) { - IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n", - pieces.inst_size); - goto try_again; - } - - if (pieces.data_size > priv->hw_params.max_data_size) { - IWL_ERR(priv, "uCode data len %Zd too large to fit in\n", - pieces.data_size); - goto try_again; - } - - if (pieces.init_size > priv->hw_params.max_inst_size) { - IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n", - pieces.init_size); - goto try_again; - } - - if (pieces.init_data_size > priv->hw_params.max_data_size) { - IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n", - pieces.init_data_size); - goto try_again; - } - - if (pieces.boot_size > priv->hw_params.max_bsm_size) { - IWL_ERR(priv, "uCode boot instr len %Zd too large to fit in\n", - pieces.boot_size); - goto try_again; - } - - /* Allocate ucode buffers for card's bus-master loading ... */ - - /* Runtime instructions and 2 copies of data: - * 1) unmodified from disk - * 2) backup cache for save/restore during power-downs */ - priv->ucode_code.len = pieces.inst_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); - - priv->ucode_data.len = pieces.data_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); - - priv->ucode_data_backup.len = pieces.data_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); - - if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || - !priv->ucode_data_backup.v_addr) - goto err_pci_alloc; - - /* Initialization instructions and data */ - if (pieces.init_size && pieces.init_data_size) { - priv->ucode_init.len = pieces.init_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); - - priv->ucode_init_data.len = pieces.init_data_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); - - if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) - goto err_pci_alloc; - } - - /* Bootstrap (instructions only, no data) */ - if (pieces.boot_size) { - priv->ucode_boot.len = pieces.boot_size; - iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); - - if (!priv->ucode_boot.v_addr) - goto err_pci_alloc; - } - - /* Now that we can no longer fail, copy information */ - - priv->sta_key_max_num = STA_KEY_MAX_NUM; - - /* Copy images into buffers for card's bus-master reads ... */ - - /* Runtime instructions (first block of data in file) */ - IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n", - pieces.inst_size); - memcpy(priv->ucode_code.v_addr, pieces.inst, pieces.inst_size); - - IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", - priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); - - /* - * Runtime data - * NOTE: Copy into backup buffer will be done in iwl_up() - */ - IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n", - pieces.data_size); - memcpy(priv->ucode_data.v_addr, pieces.data, pieces.data_size); - memcpy(priv->ucode_data_backup.v_addr, pieces.data, pieces.data_size); - - /* Initialization instructions */ - if (pieces.init_size) { - IWL_DEBUG_INFO(priv, - "Copying (but not loading) init instr len %Zd\n", - pieces.init_size); - memcpy(priv->ucode_init.v_addr, pieces.init, pieces.init_size); - } - - /* Initialization data */ - if (pieces.init_data_size) { - IWL_DEBUG_INFO(priv, - "Copying (but not loading) init data len %Zd\n", - pieces.init_data_size); - memcpy(priv->ucode_init_data.v_addr, pieces.init_data, - pieces.init_data_size); - } - - /* Bootstrap instructions */ - IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n", - pieces.boot_size); - memcpy(priv->ucode_boot.v_addr, pieces.boot, pieces.boot_size); - - /* - * figure out the offset of chain noise reset and gain commands - * base on the size of standard phy calibration commands table size - */ - priv->_4965.phy_calib_chain_noise_reset_cmd = - standard_phy_calibration_size; - priv->_4965.phy_calib_chain_noise_gain_cmd = - standard_phy_calibration_size + 1; - - /************************************************** - * This is still part of probe() in a sense... - * - * 9. Setup and register with mac80211 and debugfs - **************************************************/ - err = iwl4965_mac_setup_register(priv, max_probe_length); - if (err) - goto out_unbind; - - err = iwl_legacy_dbgfs_register(priv, DRV_NAME); - if (err) - IWL_ERR(priv, - "failed to create debugfs files. Ignoring error: %d\n", err); - - err = sysfs_create_group(&priv->pci_dev->dev.kobj, - &iwl_attribute_group); - if (err) { - IWL_ERR(priv, "failed to create sysfs device attributes\n"); - goto out_unbind; - } - - /* We have our copies now, allow OS release its copies */ - release_firmware(ucode_raw); - complete(&priv->_4965.firmware_loading_complete); - return; - - try_again: - /* try next, if any */ - if (iwl4965_request_firmware(priv, false)) - goto out_unbind; - release_firmware(ucode_raw); - return; - - err_pci_alloc: - IWL_ERR(priv, "failed to allocate pci memory\n"); - iwl4965_dealloc_ucode_pci(priv); - out_unbind: - complete(&priv->_4965.firmware_loading_complete); - device_release_driver(&priv->pci_dev->dev); - release_firmware(ucode_raw); -} - -static const char * const desc_lookup_text[] = { - "OK", - "FAIL", - "BAD_PARAM", - "BAD_CHECKSUM", - "NMI_INTERRUPT_WDG", - "SYSASSERT", - "FATAL_ERROR", - "BAD_COMMAND", - "HW_ERROR_TUNE_LOCK", - "HW_ERROR_TEMPERATURE", - "ILLEGAL_CHAN_FREQ", - "VCC_NOT_STABLE", - "FH_ERROR", - "NMI_INTERRUPT_HOST", - "NMI_INTERRUPT_ACTION_PT", - "NMI_INTERRUPT_UNKNOWN", - "UCODE_VERSION_MISMATCH", - "HW_ERROR_ABS_LOCK", - "HW_ERROR_CAL_LOCK_FAIL", - "NMI_INTERRUPT_INST_ACTION_PT", - "NMI_INTERRUPT_DATA_ACTION_PT", - "NMI_TRM_HW_ER", - "NMI_INTERRUPT_TRM", - "NMI_INTERRUPT_BREAK_POINT", - "DEBUG_0", - "DEBUG_1", - "DEBUG_2", - "DEBUG_3", -}; - -static struct { char *name; u8 num; } advanced_lookup[] = { - { "NMI_INTERRUPT_WDG", 0x34 }, - { "SYSASSERT", 0x35 }, - { "UCODE_VERSION_MISMATCH", 0x37 }, - { "BAD_COMMAND", 0x38 }, - { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, - { "FATAL_ERROR", 0x3D }, - { "NMI_TRM_HW_ERR", 0x46 }, - { "NMI_INTERRUPT_TRM", 0x4C }, - { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, - { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, - { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, - { "NMI_INTERRUPT_HOST", 0x66 }, - { "NMI_INTERRUPT_ACTION_PT", 0x7C }, - { "NMI_INTERRUPT_UNKNOWN", 0x84 }, - { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, - { "ADVANCED_SYSASSERT", 0 }, -}; - -static const char *iwl4965_desc_lookup(u32 num) -{ - int i; - int max = ARRAY_SIZE(desc_lookup_text); - - if (num < max) - return desc_lookup_text[num]; - - max = ARRAY_SIZE(advanced_lookup) - 1; - for (i = 0; i < max; i++) { - if (advanced_lookup[i].num == num) - break; - } - return advanced_lookup[i].name; -} - -#define ERROR_START_OFFSET (1 * sizeof(u32)) -#define ERROR_ELEM_SIZE (7 * sizeof(u32)) - -void iwl4965_dump_nic_error_log(struct iwl_priv *priv) -{ - u32 data2, line; - u32 desc, time, count, base, data1; - u32 blink1, blink2, ilink1, ilink2; - u32 pc, hcmd; - - if (priv->ucode_type == UCODE_INIT) { - base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); - } else { - base = le32_to_cpu(priv->card_alive.error_event_table_ptr); - } - - if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { - IWL_ERR(priv, - "Not valid error log pointer 0x%08X for %s uCode\n", - base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT"); - return; - } - - count = iwl_legacy_read_targ_mem(priv, base); - - if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { - IWL_ERR(priv, "Start IWL Error Log Dump:\n"); - IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", - priv->status, count); - } - - desc = iwl_legacy_read_targ_mem(priv, base + 1 * sizeof(u32)); - priv->isr_stats.err_code = desc; - pc = iwl_legacy_read_targ_mem(priv, base + 2 * sizeof(u32)); - blink1 = iwl_legacy_read_targ_mem(priv, base + 3 * sizeof(u32)); - blink2 = iwl_legacy_read_targ_mem(priv, base + 4 * sizeof(u32)); - ilink1 = iwl_legacy_read_targ_mem(priv, base + 5 * sizeof(u32)); - ilink2 = iwl_legacy_read_targ_mem(priv, base + 6 * sizeof(u32)); - data1 = iwl_legacy_read_targ_mem(priv, base + 7 * sizeof(u32)); - data2 = iwl_legacy_read_targ_mem(priv, base + 8 * sizeof(u32)); - line = iwl_legacy_read_targ_mem(priv, base + 9 * sizeof(u32)); - time = iwl_legacy_read_targ_mem(priv, base + 11 * sizeof(u32)); - hcmd = iwl_legacy_read_targ_mem(priv, base + 22 * sizeof(u32)); - - trace_iwlwifi_legacy_dev_ucode_error(priv, desc, - time, data1, data2, line, - blink1, blink2, ilink1, ilink2); - - IWL_ERR(priv, "Desc Time " - "data1 data2 line\n"); - IWL_ERR(priv, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n", - iwl4965_desc_lookup(desc), desc, time, data1, data2, line); - IWL_ERR(priv, "pc blink1 blink2 ilink1 ilink2 hcmd\n"); - IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n", - pc, blink1, blink2, ilink1, ilink2, hcmd); -} - -static void iwl4965_rf_kill_ct_config(struct iwl_priv *priv) -{ - struct iwl_ct_kill_config cmd; - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&priv->lock, flags); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); - spin_unlock_irqrestore(&priv->lock, flags); - - cmd.critical_temperature_R = - cpu_to_le32(priv->hw_params.ct_kill_threshold); - - ret = iwl_legacy_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, - sizeof(cmd), &cmd); - if (ret) - IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); - else - IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " - "succeeded, " - "critical temperature is %d\n", - priv->hw_params.ct_kill_threshold); -} - -static const s8 default_queue_to_tx_fifo[] = { - IWL_TX_FIFO_VO, - IWL_TX_FIFO_VI, - IWL_TX_FIFO_BE, - IWL_TX_FIFO_BK, - IWL49_CMD_FIFO_NUM, - IWL_TX_FIFO_UNUSED, - IWL_TX_FIFO_UNUSED, -}; - -static int iwl4965_alive_notify(struct iwl_priv *priv) -{ - u32 a; - unsigned long flags; - int i, chan; - u32 reg_val; - - spin_lock_irqsave(&priv->lock, flags); - - /* Clear 4965's internal Tx Scheduler data base */ - priv->scd_base_addr = iwl_legacy_read_prph(priv, - IWL49_SCD_SRAM_BASE_ADDR); - a = priv->scd_base_addr + IWL49_SCD_CONTEXT_DATA_OFFSET; - for (; a < priv->scd_base_addr + IWL49_SCD_TX_STTS_BITMAP_OFFSET; a += 4) - iwl_legacy_write_targ_mem(priv, a, 0); - for (; a < priv->scd_base_addr + IWL49_SCD_TRANSLATE_TBL_OFFSET; a += 4) - iwl_legacy_write_targ_mem(priv, a, 0); - for (; a < priv->scd_base_addr + - IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4) - iwl_legacy_write_targ_mem(priv, a, 0); - - /* Tel 4965 where to find Tx byte count tables */ - iwl_legacy_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR, - priv->scd_bc_tbls.dma >> 10); - - /* Enable DMA channel */ - for (chan = 0; chan < FH49_TCSR_CHNL_NUM ; chan++) - iwl_legacy_write_direct32(priv, - FH_TCSR_CHNL_TX_CONFIG_REG(chan), - FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | - FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE); - - /* Update FH chicken bits */ - reg_val = iwl_legacy_read_direct32(priv, FH_TX_CHICKEN_BITS_REG); - iwl_legacy_write_direct32(priv, FH_TX_CHICKEN_BITS_REG, - reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); - - /* Disable chain mode for all queues */ - iwl_legacy_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0); - - /* Initialize each Tx queue (including the command queue) */ - for (i = 0; i < priv->hw_params.max_txq_num; i++) { - - /* TFD circular buffer read/write indexes */ - iwl_legacy_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(i), 0); - iwl_legacy_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8)); - - /* Max Tx Window size for Scheduler-ACK mode */ - iwl_legacy_write_targ_mem(priv, priv->scd_base_addr + - IWL49_SCD_CONTEXT_QUEUE_OFFSET(i), - (SCD_WIN_SIZE << - IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) & - IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK); - - /* Frame limit */ - iwl_legacy_write_targ_mem(priv, priv->scd_base_addr + - IWL49_SCD_CONTEXT_QUEUE_OFFSET(i) + - sizeof(u32), - (SCD_FRAME_LIMIT << - IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & - IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK); - - } - iwl_legacy_write_prph(priv, IWL49_SCD_INTERRUPT_MASK, - (1 << priv->hw_params.max_txq_num) - 1); - - /* Activate all Tx DMA/FIFO channels */ - iwl4965_txq_set_sched(priv, IWL_MASK(0, 6)); - - iwl4965_set_wr_ptrs(priv, IWL_DEFAULT_CMD_QUEUE_NUM, 0); - - /* make sure all queue are not stopped */ - memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped)); - for (i = 0; i < 4; i++) - atomic_set(&priv->queue_stop_count[i], 0); - - /* reset to 0 to enable all the queue first */ - priv->txq_ctx_active_msk = 0; - /* Map each Tx/cmd queue to its corresponding fifo */ - BUILD_BUG_ON(ARRAY_SIZE(default_queue_to_tx_fifo) != 7); - - for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) { - int ac = default_queue_to_tx_fifo[i]; - - iwl_txq_ctx_activate(priv, i); - - if (ac == IWL_TX_FIFO_UNUSED) - continue; - - iwl4965_tx_queue_set_status(priv, &priv->txq[i], ac, 0); - } - - spin_unlock_irqrestore(&priv->lock, flags); - - return 0; -} - -/** - * iwl4965_alive_start - called after REPLY_ALIVE notification received - * from protocol/runtime uCode (initialization uCode's - * Alive gets handled by iwl_init_alive_start()). - */ -static void iwl4965_alive_start(struct iwl_priv *priv) -{ - int ret = 0; - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - - IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); - - if (priv->card_alive.is_valid != UCODE_VALID_OK) { - /* We had an error bringing up the hardware, so take it - * all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Alive failed.\n"); - goto restart; - } - - /* Initialize uCode has loaded Runtime uCode ... verify inst image. - * This is a paranoid check, because we would not have gotten the - * "runtime" alive if code weren't properly loaded. */ - if (iwl4965_verify_ucode(priv)) { - /* Runtime instruction load was bad; - * take it all the way back down so we can try again */ - IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); - goto restart; - } - - ret = iwl4965_alive_notify(priv); - if (ret) { - IWL_WARN(priv, - "Could not complete ALIVE transition [ntf]: %d\n", ret); - goto restart; - } - - - /* After the ALIVE response, we can send host commands to the uCode */ - set_bit(STATUS_ALIVE, &priv->status); - - /* Enable watchdog to monitor the driver tx queues */ - iwl_legacy_setup_watchdog(priv); - - if (iwl_legacy_is_rfkill(priv)) - return; - - ieee80211_wake_queues(priv->hw); - - priv->active_rate = IWL_RATES_MASK; - - if (iwl_legacy_is_associated_ctx(ctx)) { - struct iwl_legacy_rxon_cmd *active_rxon = - (struct iwl_legacy_rxon_cmd *)&ctx->active; - /* apply any changes in staging */ - ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; - active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; - } else { - struct iwl_rxon_context *tmp; - /* Initialize our rx_config data */ - for_each_context(priv, tmp) - iwl_legacy_connection_init_rx_config(priv, tmp); - - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - } - - /* Configure bluetooth coexistence if enabled */ - iwl_legacy_send_bt_config(priv); - - iwl4965_reset_run_time_calib(priv); - - set_bit(STATUS_READY, &priv->status); - - /* Configure the adapter for unassociated operation */ - iwl_legacy_commit_rxon(priv, ctx); - - /* At this point, the NIC is initialized and operational */ - iwl4965_rf_kill_ct_config(priv); - - IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); - wake_up(&priv->wait_command_queue); - - iwl_legacy_power_update_mode(priv, true); - IWL_DEBUG_INFO(priv, "Updated power mode\n"); - - return; - - restart: - queue_work(priv->workqueue, &priv->restart); -} - -static void iwl4965_cancel_deferred_work(struct iwl_priv *priv); - -static void __iwl4965_down(struct iwl_priv *priv) -{ - unsigned long flags; - int exit_pending; - - IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); - - iwl_legacy_scan_cancel_timeout(priv, 200); - - exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); - - /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set - * to prevent rearm timer */ - del_timer_sync(&priv->watchdog); - - iwl_legacy_clear_ucode_stations(priv, NULL); - iwl_legacy_dealloc_bcast_stations(priv); - iwl_legacy_clear_driver_stations(priv); - - /* Unblock any waiting calls */ - wake_up_all(&priv->wait_command_queue); - - /* Wipe out the EXIT_PENDING status bit if we are not actually - * exiting the module */ - if (!exit_pending) - clear_bit(STATUS_EXIT_PENDING, &priv->status); - - /* stop and reset the on-board processor */ - iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); - - /* tell the device to stop sending interrupts */ - spin_lock_irqsave(&priv->lock, flags); - iwl_legacy_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - iwl4965_synchronize_irq(priv); - - if (priv->mac80211_registered) - ieee80211_stop_queues(priv->hw); - - /* If we have not previously called iwl_init() then - * clear all bits but the RF Kill bit and return */ - if (!iwl_legacy_is_init(priv)) { - priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << - STATUS_RF_KILL_HW | - test_bit(STATUS_GEO_CONFIGURED, &priv->status) << - STATUS_GEO_CONFIGURED | - test_bit(STATUS_EXIT_PENDING, &priv->status) << - STATUS_EXIT_PENDING; - goto exit; - } - - /* ...otherwise clear out all the status bits but the RF Kill - * bit and continue taking the NIC down. */ - priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << - STATUS_RF_KILL_HW | - test_bit(STATUS_GEO_CONFIGURED, &priv->status) << - STATUS_GEO_CONFIGURED | - test_bit(STATUS_FW_ERROR, &priv->status) << - STATUS_FW_ERROR | - test_bit(STATUS_EXIT_PENDING, &priv->status) << - STATUS_EXIT_PENDING; - - iwl4965_txq_ctx_stop(priv); - iwl4965_rxq_stop(priv); - - /* Power-down device's busmaster DMA clocks */ - iwl_legacy_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); - udelay(5); - - /* Make sure (redundant) we've released our request to stay awake */ - iwl_legacy_clear_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - - /* Stop the device, and put it in low power state */ - iwl_legacy_apm_stop(priv); - - exit: - memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); - - dev_kfree_skb(priv->beacon_skb); - priv->beacon_skb = NULL; - - /* clear out any free frames */ - iwl4965_clear_free_frames(priv); -} - -static void iwl4965_down(struct iwl_priv *priv) -{ - mutex_lock(&priv->mutex); - __iwl4965_down(priv); - mutex_unlock(&priv->mutex); - - iwl4965_cancel_deferred_work(priv); -} - -#define HW_READY_TIMEOUT (50) - -static int iwl4965_set_hw_ready(struct iwl_priv *priv) -{ - int ret = 0; - - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); - - /* See if we got it */ - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, - CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, - HW_READY_TIMEOUT); - if (ret != -ETIMEDOUT) - priv->hw_ready = true; - else - priv->hw_ready = false; - - IWL_DEBUG_INFO(priv, "hardware %s\n", - (priv->hw_ready == 1) ? "ready" : "not ready"); - return ret; -} - -static int iwl4965_prepare_card_hw(struct iwl_priv *priv) -{ - int ret = 0; - - IWL_DEBUG_INFO(priv, "iwl4965_prepare_card_hw enter\n"); - - ret = iwl4965_set_hw_ready(priv); - if (priv->hw_ready) - return ret; - - /* If HW is not ready, prepare the conditions to check again */ - iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_PREPARE); - - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, - ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, - CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); - - /* HW should be ready by now, check again. */ - if (ret != -ETIMEDOUT) - iwl4965_set_hw_ready(priv); - - return ret; -} - -#define MAX_HW_RESTARTS 5 - -static int __iwl4965_up(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx; - int i; - int ret; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { - IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); - return -EIO; - } - - if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { - IWL_ERR(priv, "ucode not available for device bringup\n"); - return -EIO; - } - - for_each_context(priv, ctx) { - ret = iwl4965_alloc_bcast_station(priv, ctx); - if (ret) { - iwl_legacy_dealloc_bcast_stations(priv); - return ret; - } - } - - iwl4965_prepare_card_hw(priv); - - if (!priv->hw_ready) { - IWL_WARN(priv, "Exit HW not ready\n"); - return -EIO; - } - - /* If platform's RF_KILL switch is NOT set to KILL */ - if (iwl_read32(priv, - CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) - clear_bit(STATUS_RF_KILL_HW, &priv->status); - else - set_bit(STATUS_RF_KILL_HW, &priv->status); - - if (iwl_legacy_is_rfkill(priv)) { - wiphy_rfkill_set_hw_state(priv->hw->wiphy, true); - - iwl_legacy_enable_interrupts(priv); - IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); - return 0; - } - - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - - /* must be initialised before iwl_hw_nic_init */ - priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; - - ret = iwl4965_hw_nic_init(priv); - if (ret) { - IWL_ERR(priv, "Unable to init nic\n"); - return ret; - } - - /* make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); - - /* clear (again), then enable host interrupts */ - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - iwl_legacy_enable_interrupts(priv); - - /* really make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - - /* Copy original ucode data image from disk into backup cache. - * This will be used to initialize the on-board processor's - * data SRAM for a clean start when the runtime program first loads. */ - memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, - priv->ucode_data.len); - - for (i = 0; i < MAX_HW_RESTARTS; i++) { - - /* load bootstrap state machine, - * load bootstrap program into processor's memory, - * prepare to load the "initialize" uCode */ - ret = priv->cfg->ops->lib->load_ucode(priv); - - if (ret) { - IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n", - ret); - continue; - } - - /* start card; "initialize" will load runtime ucode */ - iwl4965_nic_start(priv); - - IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); - - return 0; - } - - set_bit(STATUS_EXIT_PENDING, &priv->status); - __iwl4965_down(priv); - clear_bit(STATUS_EXIT_PENDING, &priv->status); - - /* tried to restart and config the device for as long as our - * patience could withstand */ - IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); - return -EIO; -} - - -/***************************************************************************** - * - * Workqueue callbacks - * - *****************************************************************************/ - -static void iwl4965_bg_init_alive_start(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, init_alive_start.work); - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - goto out; - - priv->cfg->ops->lib->init_alive_start(priv); -out: - mutex_unlock(&priv->mutex); -} - -static void iwl4965_bg_alive_start(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, alive_start.work); - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - goto out; - - iwl4965_alive_start(priv); -out: - mutex_unlock(&priv->mutex); -} - -static void iwl4965_bg_run_time_calib_work(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, - run_time_calib_work); - - mutex_lock(&priv->mutex); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status) || - test_bit(STATUS_SCANNING, &priv->status)) { - mutex_unlock(&priv->mutex); - return; - } - - if (priv->start_calib) { - iwl4965_chain_noise_calibration(priv, - (void *)&priv->_4965.statistics); - iwl4965_sensitivity_calibration(priv, - (void *)&priv->_4965.statistics); - } - - mutex_unlock(&priv->mutex); -} - -static void iwl4965_bg_restart(struct work_struct *data) -{ - struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { - struct iwl_rxon_context *ctx; - - mutex_lock(&priv->mutex); - for_each_context(priv, ctx) - ctx->vif = NULL; - priv->is_open = 0; - - __iwl4965_down(priv); - - mutex_unlock(&priv->mutex); - iwl4965_cancel_deferred_work(priv); - ieee80211_restart_hw(priv->hw); - } else { - iwl4965_down(priv); - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { - mutex_unlock(&priv->mutex); - return; - } - - __iwl4965_up(priv); - mutex_unlock(&priv->mutex); - } -} - -static void iwl4965_bg_rx_replenish(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, rx_replenish); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - mutex_lock(&priv->mutex); - iwl4965_rx_replenish(priv); - mutex_unlock(&priv->mutex); -} - -/***************************************************************************** - * - * mac80211 entry point functions - * - *****************************************************************************/ - -#define UCODE_READY_TIMEOUT (4 * HZ) - -/* - * Not a mac80211 entry point function, but it fits in with all the - * other mac80211 functions grouped here. - */ -static int iwl4965_mac_setup_register(struct iwl_priv *priv, - u32 max_probe_length) -{ - int ret; - struct ieee80211_hw *hw = priv->hw; - struct iwl_rxon_context *ctx; - - hw->rate_control_algorithm = "iwl-4965-rs"; - - /* Tell mac80211 our characteristics */ - hw->flags = IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_NEED_DTIM_PERIOD | - IEEE80211_HW_SPECTRUM_MGMT | - IEEE80211_HW_REPORTS_TX_ACK_STATUS; - - if (priv->cfg->sku & IWL_SKU_N) - hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | - IEEE80211_HW_SUPPORTS_STATIC_SMPS; - - hw->sta_data_size = sizeof(struct iwl_station_priv); - hw->vif_data_size = sizeof(struct iwl_vif_priv); - - for_each_context(priv, ctx) { - hw->wiphy->interface_modes |= ctx->interface_modes; - hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; - } - - hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | - WIPHY_FLAG_DISABLE_BEACON_HINTS; - - /* - * For now, disable PS by default because it affects - * RX performance significantly. - */ - hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; - - hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; - /* we create the 802.11 header and a zero-length SSID element */ - hw->wiphy->max_scan_ie_len = max_probe_length - 24 - 2; - - /* Default value; 4 EDCA QOS priorities */ - hw->queues = 4; - - hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; - - if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) - priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = - &priv->bands[IEEE80211_BAND_2GHZ]; - if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) - priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = - &priv->bands[IEEE80211_BAND_5GHZ]; - - iwl_legacy_leds_init(priv); - - ret = ieee80211_register_hw(priv->hw); - if (ret) { - IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); - return ret; - } - priv->mac80211_registered = 1; - - return 0; -} - - -int iwl4965_mac_start(struct ieee80211_hw *hw) -{ - struct iwl_priv *priv = hw->priv; - int ret; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - /* we should be verifying the device is ready to be opened */ - mutex_lock(&priv->mutex); - ret = __iwl4965_up(priv); - mutex_unlock(&priv->mutex); - - if (ret) - return ret; - - if (iwl_legacy_is_rfkill(priv)) - goto out; - - IWL_DEBUG_INFO(priv, "Start UP work done.\n"); - - /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from - * mac80211 will not be run successfully. */ - ret = wait_event_timeout(priv->wait_command_queue, - test_bit(STATUS_READY, &priv->status), - UCODE_READY_TIMEOUT); - if (!ret) { - if (!test_bit(STATUS_READY, &priv->status)) { - IWL_ERR(priv, "START_ALIVE timeout after %dms.\n", - jiffies_to_msecs(UCODE_READY_TIMEOUT)); - return -ETIMEDOUT; - } - } - - iwl4965_led_enable(priv); - -out: - priv->is_open = 1; - IWL_DEBUG_MAC80211(priv, "leave\n"); - return 0; -} - -void iwl4965_mac_stop(struct ieee80211_hw *hw) -{ - struct iwl_priv *priv = hw->priv; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (!priv->is_open) - return; - - priv->is_open = 0; - - iwl4965_down(priv); - - flush_workqueue(priv->workqueue); - - /* User space software may expect getting rfkill changes - * even if interface is down */ - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - iwl_legacy_enable_rfkill_int(priv); - - IWL_DEBUG_MAC80211(priv, "leave\n"); -} - -void iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) -{ - struct iwl_priv *priv = hw->priv; - - IWL_DEBUG_MACDUMP(priv, "enter\n"); - - IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, - ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); - - if (iwl4965_tx_skb(priv, skb)) - dev_kfree_skb_any(skb); - - IWL_DEBUG_MACDUMP(priv, "leave\n"); -} - -void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_key_conf *keyconf, - struct ieee80211_sta *sta, - u32 iv32, u16 *phase1key) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - iwl4965_update_tkip_key(priv, vif_priv->ctx, keyconf, sta, - iv32, phase1key); - - IWL_DEBUG_MAC80211(priv, "leave\n"); -} - -int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, - struct ieee80211_vif *vif, struct ieee80211_sta *sta, - struct ieee80211_key_conf *key) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - struct iwl_rxon_context *ctx = vif_priv->ctx; - int ret; - u8 sta_id; - bool is_default_wep_key = false; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (priv->cfg->mod_params->sw_crypto) { - IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); - return -EOPNOTSUPP; - } - - sta_id = iwl_legacy_sta_id_or_broadcast(priv, vif_priv->ctx, sta); - if (sta_id == IWL_INVALID_STATION) - return -EINVAL; - - mutex_lock(&priv->mutex); - iwl_legacy_scan_cancel_timeout(priv, 100); - - /* - * If we are getting WEP group key and we didn't receive any key mapping - * so far, we are in legacy wep mode (group key only), otherwise we are - * in 1X mode. - * In legacy wep mode, we use another host command to the uCode. - */ - if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || - key->cipher == WLAN_CIPHER_SUITE_WEP104) && - !sta) { - if (cmd == SET_KEY) - is_default_wep_key = !ctx->key_mapping_keys; - else - is_default_wep_key = - (key->hw_key_idx == HW_KEY_DEFAULT); - } - - switch (cmd) { - case SET_KEY: - if (is_default_wep_key) - ret = iwl4965_set_default_wep_key(priv, - vif_priv->ctx, key); - else - ret = iwl4965_set_dynamic_key(priv, vif_priv->ctx, - key, sta_id); - - IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); - break; - case DISABLE_KEY: - if (is_default_wep_key) - ret = iwl4965_remove_default_wep_key(priv, ctx, key); - else - ret = iwl4965_remove_dynamic_key(priv, ctx, - key, sta_id); - - IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); - break; - default: - ret = -EINVAL; - } - - mutex_unlock(&priv->mutex); - IWL_DEBUG_MAC80211(priv, "leave\n"); - - return ret; -} - -int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum ieee80211_ampdu_mlme_action action, - struct ieee80211_sta *sta, u16 tid, u16 *ssn, - u8 buf_size) -{ - struct iwl_priv *priv = hw->priv; - int ret = -EINVAL; - - IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", - sta->addr, tid); - - if (!(priv->cfg->sku & IWL_SKU_N)) - return -EACCES; - - mutex_lock(&priv->mutex); - - switch (action) { - case IEEE80211_AMPDU_RX_START: - IWL_DEBUG_HT(priv, "start Rx\n"); - ret = iwl4965_sta_rx_agg_start(priv, sta, tid, *ssn); - break; - case IEEE80211_AMPDU_RX_STOP: - IWL_DEBUG_HT(priv, "stop Rx\n"); - ret = iwl4965_sta_rx_agg_stop(priv, sta, tid); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - ret = 0; - break; - case IEEE80211_AMPDU_TX_START: - IWL_DEBUG_HT(priv, "start Tx\n"); - ret = iwl4965_tx_agg_start(priv, vif, sta, tid, ssn); - break; - case IEEE80211_AMPDU_TX_STOP: - IWL_DEBUG_HT(priv, "stop Tx\n"); - ret = iwl4965_tx_agg_stop(priv, vif, sta, tid); - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - ret = 0; - break; - case IEEE80211_AMPDU_TX_OPERATIONAL: - ret = 0; - break; - } - mutex_unlock(&priv->mutex); - - return ret; -} - -int iwl4965_mac_sta_add(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_sta *sta) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; - bool is_ap = vif->type == NL80211_IFTYPE_STATION; - int ret; - u8 sta_id; - - IWL_DEBUG_INFO(priv, "received request to add station %pM\n", - sta->addr); - mutex_lock(&priv->mutex); - IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", - sta->addr); - sta_priv->common.sta_id = IWL_INVALID_STATION; - - atomic_set(&sta_priv->pending_frames, 0); - - ret = iwl_legacy_add_station_common(priv, vif_priv->ctx, sta->addr, - is_ap, sta, &sta_id); - if (ret) { - IWL_ERR(priv, "Unable to add station %pM (%d)\n", - sta->addr, ret); - /* Should we return success if return code is EEXIST ? */ - mutex_unlock(&priv->mutex); - return ret; - } - - sta_priv->common.sta_id = sta_id; - - /* Initialize rate scaling */ - IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", - sta->addr); - iwl4965_rs_rate_init(priv, sta, sta_id); - mutex_unlock(&priv->mutex); - - return 0; -} - -void iwl4965_mac_channel_switch(struct ieee80211_hw *hw, - struct ieee80211_channel_switch *ch_switch) -{ - struct iwl_priv *priv = hw->priv; - const struct iwl_channel_info *ch_info; - struct ieee80211_conf *conf = &hw->conf; - struct ieee80211_channel *channel = ch_switch->channel; - struct iwl_ht_config *ht_conf = &priv->current_ht_config; - - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - u16 ch; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - mutex_lock(&priv->mutex); - - if (iwl_legacy_is_rfkill(priv)) - goto out; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status) || - test_bit(STATUS_SCANNING, &priv->status) || - test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) - goto out; - - if (!iwl_legacy_is_associated_ctx(ctx)) - goto out; - - if (!priv->cfg->ops->lib->set_channel_switch) - goto out; - - ch = channel->hw_value; - if (le16_to_cpu(ctx->active.channel) == ch) - goto out; - - ch_info = iwl_legacy_get_channel_info(priv, channel->band, ch); - if (!iwl_legacy_is_channel_valid(ch_info)) { - IWL_DEBUG_MAC80211(priv, "invalid channel\n"); - goto out; - } - - spin_lock_irq(&priv->lock); - - priv->current_ht_config.smps = conf->smps_mode; - - /* Configure HT40 channels */ - ctx->ht.enabled = conf_is_ht(conf); - if (ctx->ht.enabled) { - if (conf_is_ht40_minus(conf)) { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_BELOW; - ctx->ht.is_40mhz = true; - } else if (conf_is_ht40_plus(conf)) { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_ABOVE; - ctx->ht.is_40mhz = true; - } else { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_NONE; - ctx->ht.is_40mhz = false; - } - } else - ctx->ht.is_40mhz = false; - - if ((le16_to_cpu(ctx->staging.channel) != ch)) - ctx->staging.flags = 0; - - iwl_legacy_set_rxon_channel(priv, channel, ctx); - iwl_legacy_set_rxon_ht(priv, ht_conf); - iwl_legacy_set_flags_for_band(priv, ctx, channel->band, ctx->vif); - - spin_unlock_irq(&priv->lock); - - iwl_legacy_set_rate(priv); - /* - * at this point, staging_rxon has the - * configuration for channel switch - */ - set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); - priv->switch_channel = cpu_to_le16(ch); - if (priv->cfg->ops->lib->set_channel_switch(priv, ch_switch)) { - clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); - priv->switch_channel = 0; - ieee80211_chswitch_done(ctx->vif, false); - } - -out: - mutex_unlock(&priv->mutex); - IWL_DEBUG_MAC80211(priv, "leave\n"); -} - -void iwl4965_configure_filter(struct ieee80211_hw *hw, - unsigned int changed_flags, - unsigned int *total_flags, - u64 multicast) -{ - struct iwl_priv *priv = hw->priv; - __le32 filter_or = 0, filter_nand = 0; - struct iwl_rxon_context *ctx; - -#define CHK(test, flag) do { \ - if (*total_flags & (test)) \ - filter_or |= (flag); \ - else \ - filter_nand |= (flag); \ - } while (0) - - IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", - changed_flags, *total_flags); - - CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); - /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ - CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); - CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); - -#undef CHK - - mutex_lock(&priv->mutex); - - for_each_context(priv, ctx) { - ctx->staging.filter_flags &= ~filter_nand; - ctx->staging.filter_flags |= filter_or; - - /* - * Not committing directly because hardware can perform a scan, - * but we'll eventually commit the filter flags change anyway. - */ - } - - mutex_unlock(&priv->mutex); - - /* - * Receiving all multicast frames is always enabled by the - * default flags setup in iwl_legacy_connection_init_rx_config() - * since we currently do not support programming multicast - * filters into the device. - */ - *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | - FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; -} - -/***************************************************************************** - * - * driver setup and teardown - * - *****************************************************************************/ - -static void iwl4965_bg_txpower_work(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, - txpower_work); - - mutex_lock(&priv->mutex); - - /* If a scan happened to start before we got here - * then just return; the statistics notification will - * kick off another scheduled work to compensate for - * any temperature delta we missed here. */ - if (test_bit(STATUS_EXIT_PENDING, &priv->status) || - test_bit(STATUS_SCANNING, &priv->status)) - goto out; - - /* Regardless of if we are associated, we must reconfigure the - * TX power since frames can be sent on non-radar channels while - * not associated */ - priv->cfg->ops->lib->send_tx_power(priv); - - /* Update last_temperature to keep is_calib_needed from running - * when it isn't needed... */ - priv->last_temperature = priv->temperature; -out: - mutex_unlock(&priv->mutex); -} - -static void iwl4965_setup_deferred_work(struct iwl_priv *priv) -{ - priv->workqueue = create_singlethread_workqueue(DRV_NAME); - - init_waitqueue_head(&priv->wait_command_queue); - - INIT_WORK(&priv->restart, iwl4965_bg_restart); - INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish); - INIT_WORK(&priv->run_time_calib_work, iwl4965_bg_run_time_calib_work); - INIT_DELAYED_WORK(&priv->init_alive_start, iwl4965_bg_init_alive_start); - INIT_DELAYED_WORK(&priv->alive_start, iwl4965_bg_alive_start); - - iwl_legacy_setup_scan_deferred_work(priv); - - INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work); - - init_timer(&priv->statistics_periodic); - priv->statistics_periodic.data = (unsigned long)priv; - priv->statistics_periodic.function = iwl4965_bg_statistics_periodic; - - init_timer(&priv->watchdog); - priv->watchdog.data = (unsigned long)priv; - priv->watchdog.function = iwl_legacy_bg_watchdog; - - tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) - iwl4965_irq_tasklet, (unsigned long)priv); -} - -static void iwl4965_cancel_deferred_work(struct iwl_priv *priv) -{ - cancel_work_sync(&priv->txpower_work); - cancel_delayed_work_sync(&priv->init_alive_start); - cancel_delayed_work(&priv->alive_start); - cancel_work_sync(&priv->run_time_calib_work); - - iwl_legacy_cancel_scan_deferred_work(priv); - - del_timer_sync(&priv->statistics_periodic); -} - -static void iwl4965_init_hw_rates(struct iwl_priv *priv, - struct ieee80211_rate *rates) -{ - int i; - - for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { - rates[i].bitrate = iwlegacy_rates[i].ieee * 5; - rates[i].hw_value = i; /* Rate scaling will work on indexes */ - rates[i].hw_value_short = i; - rates[i].flags = 0; - if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { - /* - * If CCK != 1M then set short preamble rate flag. - */ - rates[i].flags |= - (iwlegacy_rates[i].plcp == IWL_RATE_1M_PLCP) ? - 0 : IEEE80211_RATE_SHORT_PREAMBLE; - } - } -} -/* - * Acquire priv->lock before calling this function ! - */ -void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index) -{ - iwl_legacy_write_direct32(priv, HBUS_TARG_WRPTR, - (index & 0xff) | (txq_id << 8)); - iwl_legacy_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(txq_id), index); -} - -void iwl4965_tx_queue_set_status(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - int tx_fifo_id, int scd_retry) -{ - int txq_id = txq->q.id; - - /* Find out whether to activate Tx queue */ - int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0; - - /* Set up and activate */ - iwl_legacy_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id), - (active << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) | - (tx_fifo_id << IWL49_SCD_QUEUE_STTS_REG_POS_TXF) | - (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_WSL) | - (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) | - IWL49_SCD_QUEUE_STTS_REG_MSK); - - txq->sched_retry = scd_retry; - - IWL_DEBUG_INFO(priv, "%s %s Queue %d on AC %d\n", - active ? "Activate" : "Deactivate", - scd_retry ? "BA" : "AC", txq_id, tx_fifo_id); -} - - -static int iwl4965_init_drv(struct iwl_priv *priv) -{ - int ret; - - spin_lock_init(&priv->sta_lock); - spin_lock_init(&priv->hcmd_lock); - - INIT_LIST_HEAD(&priv->free_frames); - - mutex_init(&priv->mutex); - - priv->ieee_channels = NULL; - priv->ieee_rates = NULL; - priv->band = IEEE80211_BAND_2GHZ; - - priv->iw_mode = NL80211_IFTYPE_STATION; - priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; - priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; - - /* initialize force reset */ - priv->force_reset.reset_duration = IWL_DELAY_NEXT_FORCE_FW_RELOAD; - - /* Choose which receivers/antennas to use */ - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); - - iwl_legacy_init_scan_params(priv); - - ret = iwl_legacy_init_channel_map(priv); - if (ret) { - IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); - goto err; - } - - ret = iwl_legacy_init_geos(priv); - if (ret) { - IWL_ERR(priv, "initializing geos failed: %d\n", ret); - goto err_free_channel_map; - } - iwl4965_init_hw_rates(priv, priv->ieee_rates); - - return 0; - -err_free_channel_map: - iwl_legacy_free_channel_map(priv); -err: - return ret; -} - -static void iwl4965_uninit_drv(struct iwl_priv *priv) -{ - iwl4965_calib_free_results(priv); - iwl_legacy_free_geos(priv); - iwl_legacy_free_channel_map(priv); - kfree(priv->scan_cmd); -} - -static void iwl4965_hw_detect(struct iwl_priv *priv) -{ - priv->hw_rev = _iwl_legacy_read32(priv, CSR_HW_REV); - priv->hw_wa_rev = _iwl_legacy_read32(priv, CSR_HW_REV_WA_REG); - priv->rev_id = priv->pci_dev->revision; - IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", priv->rev_id); -} - -static int iwl4965_set_hw_params(struct iwl_priv *priv) -{ - priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; - priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; - if (priv->cfg->mod_params->amsdu_size_8K) - priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K); - else - priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K); - - priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; - - if (priv->cfg->mod_params->disable_11n) - priv->cfg->sku &= ~IWL_SKU_N; - - /* Device-specific setup */ - return priv->cfg->ops->lib->set_hw_params(priv); -} - -static const u8 iwl4965_bss_ac_to_fifo[] = { - IWL_TX_FIFO_VO, - IWL_TX_FIFO_VI, - IWL_TX_FIFO_BE, - IWL_TX_FIFO_BK, -}; - -static const u8 iwl4965_bss_ac_to_queue[] = { - 0, 1, 2, 3, -}; - -static int -iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - int err = 0, i; - struct iwl_priv *priv; - struct ieee80211_hw *hw; - struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); - unsigned long flags; - u16 pci_cmd; - - /************************ - * 1. Allocating HW data - ************************/ - - hw = iwl_legacy_alloc_all(cfg); - if (!hw) { - err = -ENOMEM; - goto out; - } - priv = hw->priv; - /* At this point both hw and priv are allocated. */ - - /* - * The default context is always valid, - * more may be discovered when firmware - * is loaded. - */ - priv->valid_contexts = BIT(IWL_RXON_CTX_BSS); - - for (i = 0; i < NUM_IWL_RXON_CTX; i++) - priv->contexts[i].ctxid = i; - - priv->contexts[IWL_RXON_CTX_BSS].always_active = true; - priv->contexts[IWL_RXON_CTX_BSS].is_active = true; - priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; - priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; - priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; - priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; - priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; - priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; - priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwl4965_bss_ac_to_fifo; - priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwl4965_bss_ac_to_queue; - priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = - BIT(NL80211_IFTYPE_ADHOC); - priv->contexts[IWL_RXON_CTX_BSS].interface_modes = - BIT(NL80211_IFTYPE_STATION); - priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; - priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; - priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; - priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; - - BUILD_BUG_ON(NUM_IWL_RXON_CTX != 1); - - SET_IEEE80211_DEV(hw, &pdev->dev); - - IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); - priv->cfg = cfg; - priv->pci_dev = pdev; - priv->inta_mask = CSR_INI_SET_MASK; - - if (iwl_legacy_alloc_traffic_mem(priv)) - IWL_ERR(priv, "Not enough memory to generate traffic log\n"); - - /************************** - * 2. Initializing PCI bus - **************************/ - pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | - PCIE_LINK_STATE_CLKPM); - - if (pci_enable_device(pdev)) { - err = -ENODEV; - goto out_ieee80211_free_hw; - } - - pci_set_master(pdev); - - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); - if (!err) - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36)); - if (err) { - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (!err) - err = pci_set_consistent_dma_mask(pdev, - DMA_BIT_MASK(32)); - /* both attempts failed: */ - if (err) { - IWL_WARN(priv, "No suitable DMA available.\n"); - goto out_pci_disable_device; - } - } - - err = pci_request_regions(pdev, DRV_NAME); - if (err) - goto out_pci_disable_device; - - pci_set_drvdata(pdev, priv); - - - /*********************** - * 3. Read REV register - ***********************/ - priv->hw_base = pci_iomap(pdev, 0, 0); - if (!priv->hw_base) { - err = -ENODEV; - goto out_pci_release_regions; - } - - IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", - (unsigned long long) pci_resource_len(pdev, 0)); - IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); - - /* these spin locks will be used in apm_ops.init and EEPROM access - * we should init now - */ - spin_lock_init(&priv->reg_lock); - spin_lock_init(&priv->lock); - - /* - * stop and reset the on-board processor just in case it is in a - * strange state ... like being left stranded by a primary kernel - * and this is now the kdump kernel trying to start up - */ - iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); - - iwl4965_hw_detect(priv); - IWL_INFO(priv, "Detected %s, REV=0x%X\n", - priv->cfg->name, priv->hw_rev); - - /* We disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state */ - pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); - - iwl4965_prepare_card_hw(priv); - if (!priv->hw_ready) { - IWL_WARN(priv, "Failed, HW not ready\n"); - goto out_iounmap; - } - - /***************** - * 4. Read EEPROM - *****************/ - /* Read the EEPROM */ - err = iwl_legacy_eeprom_init(priv); - if (err) { - IWL_ERR(priv, "Unable to init EEPROM\n"); - goto out_iounmap; - } - err = iwl4965_eeprom_check_version(priv); - if (err) - goto out_free_eeprom; - - if (err) - goto out_free_eeprom; - - /* extract MAC Address */ - iwl4965_eeprom_get_mac(priv, priv->addresses[0].addr); - IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); - priv->hw->wiphy->addresses = priv->addresses; - priv->hw->wiphy->n_addresses = 1; - - /************************ - * 5. Setup HW constants - ************************/ - if (iwl4965_set_hw_params(priv)) { - IWL_ERR(priv, "failed to set hw parameters\n"); - goto out_free_eeprom; - } - - /******************* - * 6. Setup priv - *******************/ - - err = iwl4965_init_drv(priv); - if (err) - goto out_free_eeprom; - /* At this point both hw and priv are initialized. */ - - /******************** - * 7. Setup services - ********************/ - spin_lock_irqsave(&priv->lock, flags); - iwl_legacy_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - pci_enable_msi(priv->pci_dev); - - err = request_irq(priv->pci_dev->irq, iwl_legacy_isr, - IRQF_SHARED, DRV_NAME, priv); - if (err) { - IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); - goto out_disable_msi; - } - - iwl4965_setup_deferred_work(priv); - iwl4965_setup_rx_handlers(priv); - - /********************************************* - * 8. Enable interrupts and read RFKILL state - *********************************************/ - - /* enable rfkill interrupt: hw bug w/a */ - pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); - if (pci_cmd & PCI_COMMAND_INTX_DISABLE) { - pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; - pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd); - } - - iwl_legacy_enable_rfkill_int(priv); - - /* If platform's RF_KILL switch is NOT set to KILL */ - if (iwl_read32(priv, CSR_GP_CNTRL) & - CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) - clear_bit(STATUS_RF_KILL_HW, &priv->status); - else - set_bit(STATUS_RF_KILL_HW, &priv->status); - - wiphy_rfkill_set_hw_state(priv->hw->wiphy, - test_bit(STATUS_RF_KILL_HW, &priv->status)); - - iwl_legacy_power_initialize(priv); - - init_completion(&priv->_4965.firmware_loading_complete); - - err = iwl4965_request_firmware(priv, true); - if (err) - goto out_destroy_workqueue; - - return 0; - - out_destroy_workqueue: - destroy_workqueue(priv->workqueue); - priv->workqueue = NULL; - free_irq(priv->pci_dev->irq, priv); - out_disable_msi: - pci_disable_msi(priv->pci_dev); - iwl4965_uninit_drv(priv); - out_free_eeprom: - iwl_legacy_eeprom_free(priv); - out_iounmap: - pci_iounmap(pdev, priv->hw_base); - out_pci_release_regions: - pci_set_drvdata(pdev, NULL); - pci_release_regions(pdev); - out_pci_disable_device: - pci_disable_device(pdev); - out_ieee80211_free_hw: - iwl_legacy_free_traffic_mem(priv); - ieee80211_free_hw(priv->hw); - out: - return err; -} - -static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) -{ - struct iwl_priv *priv = pci_get_drvdata(pdev); - unsigned long flags; - - if (!priv) - return; - - wait_for_completion(&priv->_4965.firmware_loading_complete); - - IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); - - iwl_legacy_dbgfs_unregister(priv); - sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); - - /* ieee80211_unregister_hw call wil cause iwl_mac_stop to - * to be called and iwl4965_down since we are removing the device - * we need to set STATUS_EXIT_PENDING bit. - */ - set_bit(STATUS_EXIT_PENDING, &priv->status); - - iwl_legacy_leds_exit(priv); - - if (priv->mac80211_registered) { - ieee80211_unregister_hw(priv->hw); - priv->mac80211_registered = 0; - } else { - iwl4965_down(priv); - } - - /* - * Make sure device is reset to low power before unloading driver. - * This may be redundant with iwl4965_down(), but there are paths to - * run iwl4965_down() without calling apm_ops.stop(), and there are - * paths to avoid running iwl4965_down() at all before leaving driver. - * This (inexpensive) call *makes sure* device is reset. - */ - iwl_legacy_apm_stop(priv); - - /* make sure we flush any pending irq or - * tasklet for the driver - */ - spin_lock_irqsave(&priv->lock, flags); - iwl_legacy_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - iwl4965_synchronize_irq(priv); - - iwl4965_dealloc_ucode_pci(priv); - - if (priv->rxq.bd) - iwl4965_rx_queue_free(priv, &priv->rxq); - iwl4965_hw_txq_ctx_free(priv); - - iwl_legacy_eeprom_free(priv); - - - /*netif_stop_queue(dev); */ - flush_workqueue(priv->workqueue); - - /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes - * priv->workqueue... so we can't take down the workqueue - * until now... */ - destroy_workqueue(priv->workqueue); - priv->workqueue = NULL; - iwl_legacy_free_traffic_mem(priv); - - free_irq(priv->pci_dev->irq, priv); - pci_disable_msi(priv->pci_dev); - pci_iounmap(pdev, priv->hw_base); - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - - iwl4965_uninit_drv(priv); - - dev_kfree_skb(priv->beacon_skb); - - ieee80211_free_hw(priv->hw); -} - -/* - * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask - * must be called under priv->lock and mac access - */ -void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask) -{ - iwl_legacy_write_prph(priv, IWL49_SCD_TXFACT, mask); -} - -/***************************************************************************** - * - * driver and module entry point - * - *****************************************************************************/ - -/* Hardware specific file defines the PCI IDs table for that hardware module */ -static DEFINE_PCI_DEVICE_TABLE(iwl4965_hw_card_ids) = { -#if defined(CONFIG_IWL4965_MODULE) || defined(CONFIG_IWL4965) - {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_cfg)}, - {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_cfg)}, -#endif /* CONFIG_IWL4965 */ - - {0} -}; -MODULE_DEVICE_TABLE(pci, iwl4965_hw_card_ids); - -static struct pci_driver iwl4965_driver = { - .name = DRV_NAME, - .id_table = iwl4965_hw_card_ids, - .probe = iwl4965_pci_probe, - .remove = __devexit_p(iwl4965_pci_remove), - .driver.pm = IWL_LEGACY_PM_OPS, -}; - -static int __init iwl4965_init(void) -{ - - int ret; - pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); - pr_info(DRV_COPYRIGHT "\n"); - - ret = iwl4965_rate_control_register(); - if (ret) { - pr_err("Unable to register rate control algorithm: %d\n", ret); - return ret; - } - - ret = pci_register_driver(&iwl4965_driver); - if (ret) { - pr_err("Unable to initialize PCI module\n"); - goto error_register; - } - - return ret; - -error_register: - iwl4965_rate_control_unregister(); - return ret; -} - -static void __exit iwl4965_exit(void) -{ - pci_unregister_driver(&iwl4965_driver); - iwl4965_rate_control_unregister(); -} - -module_exit(iwl4965_exit); -module_init(iwl4965_init); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG -module_param_named(debug, iwlegacy_debug_level, uint, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "debug output mask"); -#endif - -module_param_named(swcrypto, iwl4965_mod_params.sw_crypto, int, S_IRUGO); -MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); -module_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, S_IRUGO); -MODULE_PARM_DESC(queues_num, "number of hw queues."); -module_param_named(11n_disable, iwl4965_mod_params.disable_11n, int, S_IRUGO); -MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); -module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K, - int, S_IRUGO); -MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); -module_param_named(fw_restart, iwl4965_mod_params.restart_fw, int, S_IRUGO); -MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); diff --git a/drivers/net/wireless/iwlegacy/iwl-prph.h b/drivers/net/wireless/iwlegacy/prph.h index 30a493003ab0..ffec4b4a248a 100644 --- a/drivers/net/wireless/iwlegacy/iwl-prph.h +++ b/drivers/net/wireless/iwlegacy/prph.h @@ -60,8 +60,8 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *****************************************************************************/ -#ifndef __iwl_legacy_prph_h__ -#define __iwl_legacy_prph_h__ +#ifndef __il_prph_h__ +#define __il_prph_h__ /* * Registers in this file are internal, not PCI bus memory mapped. @@ -91,9 +91,9 @@ #define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000) #define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000) #define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN (0x00000000) -#define APMG_PS_CTRL_VAL_PWR_SRC_MAX (0x01000000) /* 3945 only */ +#define APMG_PS_CTRL_VAL_PWR_SRC_MAX (0x01000000) /* 3945 only */ #define APMG_PS_CTRL_VAL_PWR_SRC_VAUX (0x02000000) -#define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK (0x000001E0) /* bit 8:5 */ +#define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK (0x000001E0) /* bit 8:5 */ #define APMG_SVR_DIGITAL_VOLTAGE_1_32 (0x00000060) #define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800) @@ -120,13 +120,13 @@ * * 1) Initialization -- performs hardware calibration and sets up some * internal data, then notifies host via "initialize alive" notification - * (struct iwl_init_alive_resp) that it has completed all of its work. + * (struct il_init_alive_resp) that it has completed all of its work. * After signal from host, it then loads and starts the runtime program. * The initialization program must be used when initially setting up the * NIC after loading the driver. * * 2) Runtime/Protocol -- performs all normal runtime operations. This - * notifies host via "alive" notification (struct iwl_alive_resp) that it + * notifies host via "alive" notification (struct il_alive_resp) that it * is ready to be used. * * When initializing the NIC, the host driver does the following procedure: @@ -189,7 +189,7 @@ * procedure. * * This save/restore method is mostly for autonomous power management during - * normal operation (result of POWER_TABLE_CMD). Platform suspend/resume and + * normal operation (result of C_POWER_TBL). Platform suspend/resume and * RFKILL should use complete restarts (with total re-initialization) of uCode, * allowing total shutdown (including BSM memory). * @@ -202,19 +202,19 @@ */ /* BSM bit fields */ -#define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */ -#define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup*/ -#define BSM_DRAM_INST_LOAD (0x80000000) /* start program load now */ +#define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */ +#define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup */ +#define BSM_DRAM_INST_LOAD (0x80000000) /* start program load now */ /* BSM addresses */ #define BSM_BASE (PRPH_BASE + 0x3400) #define BSM_END (PRPH_BASE + 0x3800) -#define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */ -#define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */ -#define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */ -#define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */ -#define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */ +#define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */ +#define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */ +#define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */ +#define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */ +#define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */ /* * Pointers and size regs for bootstrap load and data SRAM save/restore. @@ -231,8 +231,7 @@ * Read/write, address range from LOWER_BOUND to (LOWER_BOUND + SIZE -1) */ #define BSM_SRAM_LOWER_BOUND (PRPH_BASE + 0x3800) -#define BSM_SRAM_SIZE (1024) /* bytes */ - +#define BSM_SRAM_SIZE (1024) /* bytes */ /* 3945 Tx scheduler registers */ #define ALM_SCD_BASE (PRPH_BASE + 0x2E00) @@ -255,7 +254,7 @@ * but one DMA channel may take input from several queues. * * Tx DMA FIFOs have dedicated purposes. For 4965, they are used as follows - * (cf. default_queue_to_tx_fifo in iwl-4965.c): + * (cf. default_queue_to_tx_fifo in 4965.c): * * 0 -- EDCA BK (background) frames, lowest priority * 1 -- EDCA BE (best effort) frames, normal priority @@ -274,20 +273,20 @@ * The driver sets up each queue to work in one of two modes: * * 1) Scheduler-Ack, in which the scheduler automatically supports a - * block-ack (BA) window of up to 64 TFDs. In this mode, each queue + * block-ack (BA) win of up to 64 TFDs. In this mode, each queue * contains TFDs for a unique combination of Recipient Address (RA) * and Traffic Identifier (TID), that is, traffic of a given * Quality-Of-Service (QOS) priority, destined for a single station. * * In scheduler-ack mode, the scheduler keeps track of the Tx status of - * each frame within the BA window, including whether it's been transmitted, + * each frame within the BA win, including whether it's been transmitted, * and whether it's been acknowledged by the receiving station. The device * automatically processes block-acks received from the receiving STA, * and reschedules un-acked frames to be retransmitted (successful * Tx completion may end up being out-of-order). * * The driver must maintain the queue's Byte Count table in host DRAM - * (struct iwl4965_sched_queue_byte_cnt_tbl) for this mode. + * (struct il4965_sched_queue_byte_cnt_tbl) for this mode. * This mode does not support fragmentation. * * 2) FIFO (a.k.a. non-Scheduler-ACK), in which each TFD is processed in order. @@ -316,34 +315,34 @@ */ /** - * Max Tx window size is the max number of contiguous TFDs that the scheduler + * Max Tx win size is the max number of contiguous TFDs that the scheduler * can keep track of at one time when creating block-ack chains of frames. * Note that "64" matches the number of ack bits in a block-ack packet. * Driver should use SCD_WIN_SIZE and SCD_FRAME_LIMIT values to initialize - * IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) values. + * IL49_SCD_CONTEXT_QUEUE_OFFSET(x) values. */ #define SCD_WIN_SIZE 64 #define SCD_FRAME_LIMIT 64 /* SCD registers are internal, must be accessed via HBUS_TARG_PRPH regs */ -#define IWL49_SCD_START_OFFSET 0xa02c00 +#define IL49_SCD_START_OFFSET 0xa02c00 /* * 4965 tells driver SRAM address for internal scheduler structs via this reg. * Value is valid only after "Alive" response from uCode. */ -#define IWL49_SCD_SRAM_BASE_ADDR (IWL49_SCD_START_OFFSET + 0x0) +#define IL49_SCD_SRAM_BASE_ADDR (IL49_SCD_START_OFFSET + 0x0) /* * Driver may need to update queue-empty bits after changing queue's - * write and read pointers (indexes) during (re-)initialization (i.e. when + * write and read pointers (idxes) during (re-)initialization (i.e. when * scheduler is not tracking what's happening). * Bit fields: * 31-16: Write mask -- 1: update empty bit, 0: don't change empty bit * 15-00: Empty state, one for each queue -- 1: empty, 0: non-empty * NOTE: This register is not used by Linux driver. */ -#define IWL49_SCD_EMPTY_BITS (IWL49_SCD_START_OFFSET + 0x4) +#define IL49_SCD_EMPTY_BITS (IL49_SCD_START_OFFSET + 0x4) /* * Physical base address of array of byte count (BC) circular buffers (CBs). @@ -351,11 +350,11 @@ * This register points to BC CB for queue 0, must be on 1024-byte boundary. * Others are spaced by 1024 bytes. * Each BC CB is 2 bytes * (256 + 64) = 740 bytes, followed by 384 bytes pad. - * (Index into a queue's BC CB) = (index into queue's TFD CB) = (SSN & 0xff). + * (Index into a queue's BC CB) = (idx into queue's TFD CB) = (SSN & 0xff). * Bit fields: * 25-00: Byte Count CB physical address [35:10], must be 1024-byte aligned. */ -#define IWL49_SCD_DRAM_BASE_ADDR (IWL49_SCD_START_OFFSET + 0x10) +#define IL49_SCD_DRAM_BASE_ADDR (IL49_SCD_START_OFFSET + 0x10) /* * Enables any/all Tx DMA/FIFO channels. @@ -364,23 +363,23 @@ * Bit fields: * 7- 0: Enable (1), disable (0), one bit for each channel 0-7 */ -#define IWL49_SCD_TXFACT (IWL49_SCD_START_OFFSET + 0x1c) +#define IL49_SCD_TXFACT (IL49_SCD_START_OFFSET + 0x1c) /* - * Queue (x) Write Pointers (indexes, really!), one for each Tx queue. + * Queue (x) Write Pointers (idxes, really!), one for each Tx queue. * Initialized and updated by driver as new TFDs are added to queue. - * NOTE: If using Block Ack, index must correspond to frame's - * Start Sequence Number; index = (SSN & 0xff) + * NOTE: If using Block Ack, idx must correspond to frame's + * Start Sequence Number; idx = (SSN & 0xff) * NOTE: Alternative to HBUS_TARG_WRPTR, which is what Linux driver uses? */ -#define IWL49_SCD_QUEUE_WRPTR(x) (IWL49_SCD_START_OFFSET + 0x24 + (x) * 4) +#define IL49_SCD_QUEUE_WRPTR(x) (IL49_SCD_START_OFFSET + 0x24 + (x) * 4) /* - * Queue (x) Read Pointers (indexes, really!), one for each Tx queue. - * For FIFO mode, index indicates next frame to transmit. - * For Scheduler-ACK mode, index indicates first frame in Tx window. + * Queue (x) Read Pointers (idxes, really!), one for each Tx queue. + * For FIFO mode, idx indicates next frame to transmit. + * For Scheduler-ACK mode, idx indicates first frame in Tx win. * Initialized by driver, updated by scheduler. */ -#define IWL49_SCD_QUEUE_RDPTR(x) (IWL49_SCD_START_OFFSET + 0x64 + (x) * 4) +#define IL49_SCD_QUEUE_RDPTR(x) (IL49_SCD_START_OFFSET + 0x64 + (x) * 4) /* * Select which queues work in chain mode (1) vs. not (0). @@ -391,18 +390,18 @@ * NOTE: If driver sets up queue for chain mode, it should be also set up * Scheduler-ACK mode as well, via SCD_QUEUE_STATUS_BITS(x). */ -#define IWL49_SCD_QUEUECHAIN_SEL (IWL49_SCD_START_OFFSET + 0xd0) +#define IL49_SCD_QUEUECHAIN_SEL (IL49_SCD_START_OFFSET + 0xd0) /* * Select which queues interrupt driver when scheduler increments - * a queue's read pointer (index). + * a queue's read pointer (idx). * Bit fields: * 31-16: Reserved * 15-00: Interrupt enable, one bit for each queue -- 1: enabled, 0: disabled * NOTE: This functionality is apparently a no-op; driver relies on interrupts * from Rx queue to read Tx command responses and update Tx queues. */ -#define IWL49_SCD_INTERRUPT_MASK (IWL49_SCD_START_OFFSET + 0xe4) +#define IL49_SCD_INTERRUPT_MASK (IL49_SCD_START_OFFSET + 0xe4) /* * Queue search status registers. One for each queue. @@ -414,7 +413,7 @@ * Driver should init to "1" for aggregation mode, or "0" otherwise. * 7-6: Driver should init to "0" * 5: Window Size Left; indicates whether scheduler can request - * another TFD, based on window size, etc. Driver should init + * another TFD, based on win size, etc. Driver should init * this bit to "1" for aggregation mode, or "0" for non-agg. * 4-1: Tx FIFO to use (range 0-7). * 0: Queue is active (1), not active (0). @@ -423,18 +422,18 @@ * NOTE: If enabling Scheduler-ACK mode, chain mode should also be enabled * via SCD_QUEUECHAIN_SEL. */ -#define IWL49_SCD_QUEUE_STATUS_BITS(x)\ - (IWL49_SCD_START_OFFSET + 0x104 + (x) * 4) +#define IL49_SCD_QUEUE_STATUS_BITS(x)\ + (IL49_SCD_START_OFFSET + 0x104 + (x) * 4) /* Bit field positions */ -#define IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE (0) -#define IWL49_SCD_QUEUE_STTS_REG_POS_TXF (1) -#define IWL49_SCD_QUEUE_STTS_REG_POS_WSL (5) -#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK (8) +#define IL49_SCD_QUEUE_STTS_REG_POS_ACTIVE (0) +#define IL49_SCD_QUEUE_STTS_REG_POS_TXF (1) +#define IL49_SCD_QUEUE_STTS_REG_POS_WSL (5) +#define IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK (8) /* Write masks */ -#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (10) -#define IWL49_SCD_QUEUE_STTS_REG_MSK (0x0007FC00) +#define IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (10) +#define IL49_SCD_QUEUE_STTS_REG_MSK (0x0007FC00) /** * 4965 internal SRAM structures for scheduler, shared with driver ... @@ -460,7 +459,7 @@ * each queue's entry as follows: * * LS Dword bit fields: - * 0-06: Max Tx window size for Scheduler-ACK. Driver should init to 64. + * 0-06: Max Tx win size for Scheduler-ACK. Driver should init to 64. * * MS Dword bit fields: * 16-22: Frame limit. Driver should init to 10 (0xa). @@ -470,14 +469,14 @@ * Init must be done after driver receives "Alive" response from 4965 uCode, * and when setting up queue for aggregation. */ -#define IWL49_SCD_CONTEXT_DATA_OFFSET 0x380 -#define IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) \ - (IWL49_SCD_CONTEXT_DATA_OFFSET + ((x) * 8)) +#define IL49_SCD_CONTEXT_DATA_OFFSET 0x380 +#define IL49_SCD_CONTEXT_QUEUE_OFFSET(x) \ + (IL49_SCD_CONTEXT_DATA_OFFSET + ((x) * 8)) -#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS (0) -#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK (0x0000007F) -#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) -#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) +#define IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS (0) +#define IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK (0x0000007F) +#define IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) +#define IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) /* * Tx Status Bitmap @@ -486,7 +485,7 @@ * "Alive" notification from uCode. Area is used only by device itself; * no other support (besides clearing) is required from driver. */ -#define IWL49_SCD_TX_STTS_BITMAP_OFFSET 0x400 +#define IL49_SCD_TX_STTS_BITMAP_OFFSET 0x400 /* * RAxTID to queue translation mapping. @@ -494,7 +493,7 @@ * When queue is in Scheduler-ACK mode, frames placed in a that queue must be * for only one combination of receiver address (RA) and traffic ID (TID), i.e. * one QOS priority level destined for one station (for this wireless link, - * not final destination). The SCD_TRANSLATE_TABLE area provides 16 16-bit + * not final destination). The SCD_TRANSLATE_TBL area provides 16 16-bit * mappings, one for each of the 16 queues. If queue is not in Scheduler-ACK * mode, the device ignores the mapping value. * @@ -508,16 +507,16 @@ * must read a dword-aligned value from device SRAM, replace the 16-bit map * value of interest, and write the dword value back into device SRAM. */ -#define IWL49_SCD_TRANSLATE_TBL_OFFSET 0x500 +#define IL49_SCD_TRANSLATE_TBL_OFFSET 0x500 /* Find translation table dword to read/write for given queue */ -#define IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \ - ((IWL49_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc) +#define IL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \ + ((IL49_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc) -#define IWL_SCD_TXFIFO_POS_TID (0) -#define IWL_SCD_TXFIFO_POS_RA (4) -#define IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF) +#define IL_SCD_TXFIFO_POS_TID (0) +#define IL_SCD_TXFIFO_POS_RA (4) +#define IL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF) /*********************** END TX SCHEDULER *************************************/ -#endif /* __iwl_legacy_prph_h__ */ +#endif /* __il_prph_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index e6a02e09ee18..a1a95d5f3923 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -790,6 +790,7 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb, iwl_rx_reply_tx_agg(priv, tx_resp); if (tx_resp->frame_count == 1) { + IWL_DEBUG_TX_REPLY(priv, "Q %d, ssn %d", txq_id, ssn); __skb_queue_head_init(&skbs); /*we can free until ssn % q.n_bd not inclusive */ iwl_trans_reclaim(trans(priv), sta_id, tid, txq_id, @@ -920,11 +921,9 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, ba_resp->sta_id); IWL_DEBUG_TX_REPLY(priv, "TID = %d, SeqCtl = %d, bitmap = 0x%llx, " "scd_flow = %d, scd_ssn = %d\n", - ba_resp->tid, - ba_resp->seq_ctl, + ba_resp->tid, ba_resp->seq_ctl, (unsigned long long)le64_to_cpu(ba_resp->bitmap), - ba_resp->scd_flow, - ba_resp->scd_ssn); + scd_flow, ba_resp_scd_ssn); /* Mark that the expected block-ack response arrived */ agg->wait_for_ba = false; diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index 40ef97bac1aa..44a7bdd7ccfd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -47,20 +47,21 @@ do { \ } while (0) #ifdef CONFIG_IWLWIFI_DEBUG -#define IWL_DEBUG(m, level, fmt, args...) \ +#define IWL_DEBUG(m, level, fmt, ...) \ do { \ if (iwl_get_debug_level((m)->shrd) & (level)) \ - dev_printk(KERN_ERR, bus(m)->dev, \ - "%c %s " fmt, in_interrupt() ? 'I' : 'U', \ - __func__ , ## args); \ + dev_err(bus(m)->dev, "%c %s " fmt, \ + in_interrupt() ? 'I' : 'U', __func__, \ + ##__VA_ARGS__); \ } while (0) -#define IWL_DEBUG_LIMIT(m, level, fmt, args...) \ +#define IWL_DEBUG_LIMIT(m, level, fmt, ...) \ do { \ - if (iwl_get_debug_level((m)->shrd) & (level) && net_ratelimit())\ - dev_printk(KERN_ERR, bus(m)->dev, \ - "%c %s " fmt, in_interrupt() ? 'I' : 'U', \ - __func__ , ## args); \ + if (iwl_get_debug_level((m)->shrd) & (level) && \ + net_ratelimit()) \ + dev_err(bus(m)->dev, "%c %s " fmt, \ + in_interrupt() ? 'I' : 'U', __func__, \ + ##__VA_ARGS__); \ } while (0) #define iwl_print_hex_dump(m, level, p, len) \ @@ -70,14 +71,18 @@ do { \ DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ } while (0) -#define IWL_DEBUG_QUIET_RFKILL(p, fmt, args...) \ +#define IWL_DEBUG_QUIET_RFKILL(p, fmt, ...) \ do { \ - if (!iwl_is_rfkill(p->shrd)) \ - dev_printk(KERN_ERR, bus(p)->dev, "%c %s " fmt, \ - (in_interrupt() ? 'I' : 'U'), __func__ , ##args); \ - else if (iwl_get_debug_level(p->shrd) & IWL_DL_RADIO) \ - dev_printk(KERN_ERR, bus(p)->dev, "(RFKILL) %c %s " fmt, \ - (in_interrupt() ? 'I' : 'U'), __func__ , ##args); \ + if (!iwl_is_rfkill(p->shrd)) \ + dev_err(bus(p)->dev, "%s%c %s " fmt, \ + "", \ + in_interrupt() ? 'I' : 'U', __func__, \ + ##__VA_ARGS__); \ + else if (iwl_get_debug_level(p->shrd) & IWL_DL_RADIO) \ + dev_err(bus(p)->dev, "%s%c %s " fmt, \ + "(RFKILL) ", \ + in_interrupt() ? 'I' : 'U', __func__, \ + ##__VA_ARGS__); \ } while (0) #else diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c index 3ffa8e62b856..3464cad7e38c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-io.c +++ b/drivers/net/wireless/iwlwifi/iwl-io.c @@ -143,7 +143,7 @@ u32 iwl_read_direct32(struct iwl_bus *bus, u32 reg) spin_lock_irqsave(&bus->reg_lock, flags); iwl_grab_nic_access(bus); - value = iwl_read32(bus(bus), reg); + value = iwl_read32(bus, reg); iwl_release_nic_access(bus); spin_unlock_irqrestore(&bus->reg_lock, flags); diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h index afaaa2a51b96..5a384b309b09 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h @@ -354,6 +354,11 @@ static inline void iwl_set_swq_id(struct iwl_tx_queue *txq, u8 ac, u8 hwq) txq->swq_id = (hwq << 2) | ac; } +static inline u8 iwl_get_queue_ac(struct iwl_tx_queue *txq) +{ + return txq->swq_id & 0x3; +} + static inline void iwl_wake_queue(struct iwl_trans *trans, struct iwl_tx_queue *txq, const char *msg) { diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c index 6dba1515023c..79331fb10aa5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c @@ -559,7 +559,6 @@ int iwl_trans_pcie_tx_agg_alloc(struct iwl_trans *trans, tid_data->agg.txq_id = txq_id; iwl_set_swq_id(&trans_pcie->txq[txq_id], get_ac_from_tid(tid), txq_id); - tid_data = &trans->shrd->tid_data[sta_id][tid]; if (tid_data->tfds_in_queue == 0) { IWL_DEBUG_TX_QUEUES(trans, "HW queue is empty\n"); tid_data->agg.state = IWL_AGG_ON; @@ -1121,9 +1120,6 @@ int iwl_tx_queue_reclaim(struct iwl_trans *trans, int txq_id, int index, return 0; } - IWL_DEBUG_TX_REPLY(trans, "reclaim: [%d, %d, %d]\n", txq_id, - q->read_ptr, index); - if (WARN_ON(!skb_queue_empty(skbs))) return 0; diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c index 93c4f56ac408..5954fdfd60dd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c @@ -1351,9 +1351,9 @@ static void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int sta_id, int tid, } if (txq->q.read_ptr != tfd_num) { - IWL_DEBUG_TX_REPLY(trans, "Retry scheduler reclaim " - "scd_ssn=%d idx=%d txq=%d swq=%d\n", - ssn , tfd_num, txq_id, txq->swq_id); + IWL_DEBUG_TX_REPLY(trans, "[Q %d | AC %d] %d -> %d (%d)\n", + txq_id, iwl_get_queue_ac(txq), txq->q.read_ptr, + tfd_num, ssn); freed = iwl_tx_queue_reclaim(trans, txq_id, tfd_num, skbs); if (iwl_queue_space(&txq->q) > txq->q.low_mark && cond) iwl_wake_queue(trans, txq, "Packets reclaimed"); @@ -1516,8 +1516,12 @@ static int iwl_trans_pcie_check_stuck_queue(struct iwl_trans *trans, int cnt) if (time_after(jiffies, timeout)) { IWL_ERR(trans, "Queue %d stuck for %u ms.\n", q->id, hw_params(trans).wd_timeout); - IWL_ERR(trans, "Current read_ptr %d write_ptr %d\n", + IWL_ERR(trans, "Current SW read_ptr %d write_ptr %d\n", q->read_ptr, q->write_ptr); + IWL_ERR(trans, "Current HW read_ptr %d write_ptr %d\n", + iwl_read_prph(bus(trans), SCD_QUEUE_RDPTR(cnt)) + & (TFD_QUEUE_SIZE_MAX - 1), + iwl_read_prph(bus(trans), SCD_QUEUE_WRPTR(cnt))); return 1; } diff --git a/drivers/net/wireless/libertas/ethtool.c b/drivers/net/wireless/libertas/ethtool.c index 885ddc1c4fed..f955b2d66ed6 100644 --- a/drivers/net/wireless/libertas/ethtool.c +++ b/drivers/net/wireless/libertas/ethtool.c @@ -13,13 +13,14 @@ static void lbs_ethtool_get_drvinfo(struct net_device *dev, { struct lbs_private *priv = dev->ml_priv; - snprintf(info->fw_version, 32, "%u.%u.%u.p%u", + snprintf(info->fw_version, sizeof(info->fw_version), + "%u.%u.%u.p%u", priv->fwrelease >> 24 & 0xff, priv->fwrelease >> 16 & 0xff, priv->fwrelease >> 8 & 0xff, priv->fwrelease & 0xff); - strcpy(info->driver, "libertas"); - strcpy(info->version, lbs_driver_version); + strlcpy(info->driver, "libertas", sizeof(info->driver)); + strlcpy(info->version, lbs_driver_version, sizeof(info->version)); } /* diff --git a/drivers/net/wireless/mwifiex/Kconfig b/drivers/net/wireless/mwifiex/Kconfig index 8f2797aa0c60..2a078cea830a 100644 --- a/drivers/net/wireless/mwifiex/Kconfig +++ b/drivers/net/wireless/mwifiex/Kconfig @@ -10,12 +10,12 @@ config MWIFIEX mwifiex. config MWIFIEX_SDIO - tristate "Marvell WiFi-Ex Driver for SD8787" + tristate "Marvell WiFi-Ex Driver for SD8787/SD8797" depends on MWIFIEX && MMC select FW_LOADER ---help--- This adds support for wireless adapters based on Marvell - 8787 chipset with SDIO interface. + 8787/8797 chipsets with SDIO interface. If you choose to build it as a module, it will be called mwifiex_sdio. diff --git a/drivers/net/wireless/mwifiex/cfp.c b/drivers/net/wireless/mwifiex/cfp.c index f2e6de03805c..1782a77f15dc 100644 --- a/drivers/net/wireless/mwifiex/cfp.c +++ b/drivers/net/wireless/mwifiex/cfp.c @@ -75,18 +75,32 @@ static u8 supported_rates_n[N_SUPPORTED_RATES] = { 0x02, 0x04, 0 }; * This function maps an index in supported rates table into * the corresponding data rate. */ -u32 mwifiex_index_to_data_rate(u8 index, u8 ht_info) +u32 mwifiex_index_to_data_rate(struct mwifiex_private *priv, u8 index, + u8 ht_info) { - u16 mcs_rate[4][8] = { - {0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e} - , /* LG 40M */ - {0x1e, 0x3c, 0x5a, 0x78, 0xb4, 0xf0, 0x10e, 0x12c} - , /* SG 40M */ - {0x0d, 0x1a, 0x27, 0x34, 0x4e, 0x68, 0x75, 0x82} - , /* LG 20M */ - {0x0e, 0x1c, 0x2b, 0x39, 0x56, 0x73, 0x82, 0x90} - }; /* SG 20M */ - + /* + * For every mcs_rate line, the first 8 bytes are for stream 1x1, + * and all 16 bytes are for stream 2x2. + */ + u16 mcs_rate[4][16] = { + /* LGI 40M */ + { 0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e, + 0x36, 0x6c, 0xa2, 0xd8, 0x144, 0x1b0, 0x1e6, 0x21c }, + + /* SGI 40M */ + { 0x1e, 0x3c, 0x5a, 0x78, 0xb4, 0xf0, 0x10e, 0x12c, + 0x3c, 0x78, 0xb4, 0xf0, 0x168, 0x1e0, 0x21c, 0x258 }, + + /* LGI 20M */ + { 0x0d, 0x1a, 0x27, 0x34, 0x4e, 0x68, 0x75, 0x82, + 0x1a, 0x34, 0x4e, 0x68, 0x9c, 0xd0, 0xea, 0x104 }, + + /* SGI 20M */ + { 0x0e, 0x1c, 0x2b, 0x39, 0x56, 0x73, 0x82, 0x90, + 0x1c, 0x39, 0x56, 0x73, 0xad, 0xe7, 0x104, 0x120 } + }; + u32 mcs_num_supp = + (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) ? 16 : 8; u32 rate; if (ht_info & BIT(0)) { @@ -95,7 +109,7 @@ u32 mwifiex_index_to_data_rate(u8 index, u8 ht_info) rate = 0x0D; /* MCS 32 SGI rate */ else rate = 0x0C; /* MCS 32 LGI rate */ - } else if (index < 8) { + } else if (index < mcs_num_supp) { if (ht_info & BIT(1)) { if (ht_info & BIT(2)) /* SGI, 40M */ diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h index 35cb29cbd96e..62b863907698 100644 --- a/drivers/net/wireless/mwifiex/fw.h +++ b/drivers/net/wireless/mwifiex/fw.h @@ -165,6 +165,7 @@ enum MWIFIEX_802_11_WEP_STATUS { #define GET_RXMCSSUPP(DevMCSSupported) (DevMCSSupported & 0x0f) #define SETHT_MCS32(x) (x[4] |= 1) +#define HT_STREAM_2X2 0x22 #define SET_SECONDARYCHAN(RadioType, SECCHAN) (RadioType |= (SECCHAN << 4)) diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 30f138b6fa4c..3861a617c0e1 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -775,7 +775,8 @@ struct mwifiex_chan_freq_power * struct mwifiex_chan_freq_power *mwifiex_get_cfp_by_band_and_freq_from_cfg80211( struct mwifiex_private *priv, u8 band, u32 freq); -u32 mwifiex_index_to_data_rate(u8 index, u8 ht_info); +u32 mwifiex_index_to_data_rate(struct mwifiex_private *priv, u8 index, + u8 ht_info); u32 mwifiex_find_freq_from_band_chan(u8, u8); int mwifiex_cmd_append_vsie_tlv(struct mwifiex_private *priv, u16 vsie_mask, u8 **buffer); diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c index ffaf3f3a57df..702452b505c3 100644 --- a/drivers/net/wireless/mwifiex/sdio.c +++ b/drivers/net/wireless/mwifiex/sdio.c @@ -256,10 +256,13 @@ static int mwifiex_sdio_resume(struct device *dev) /* Device ID for SD8787 */ #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119) +/* Device ID for SD8797 */ +#define SDIO_DEVICE_ID_MARVELL_8797 (0x9129) /* WLAN IDs */ static const struct sdio_device_id mwifiex_ids[] = { {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787)}, + {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797)}, {}, }; @@ -1573,7 +1576,16 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter) sdio_set_drvdata(func, card); adapter->dev = &func->dev; - strcpy(adapter->fw_name, SD8787_DEFAULT_FW_NAME); + + switch (func->device) { + case SDIO_DEVICE_ID_MARVELL_8797: + strcpy(adapter->fw_name, SD8797_DEFAULT_FW_NAME); + break; + case SDIO_DEVICE_ID_MARVELL_8787: + default: + strcpy(adapter->fw_name, SD8787_DEFAULT_FW_NAME); + break; + } return 0; @@ -1774,4 +1786,5 @@ MODULE_AUTHOR("Marvell International Ltd."); MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION); MODULE_VERSION(SDIO_VERSION); MODULE_LICENSE("GPL v2"); -MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin"); +MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME); +MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME); diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h index 3f711801e58a..a3fb322205b0 100644 --- a/drivers/net/wireless/mwifiex/sdio.h +++ b/drivers/net/wireless/mwifiex/sdio.h @@ -29,6 +29,7 @@ #include "main.h" #define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin" +#define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin" #define BLOCK_MODE 1 #define BYTE_MODE 0 diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c index 7a16b0c417af..e812db8b695c 100644 --- a/drivers/net/wireless/mwifiex/sta_cmdresp.c +++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c @@ -508,7 +508,7 @@ static int mwifiex_ret_802_11_tx_rate_query(struct mwifiex_private *priv, priv->tx_htinfo = resp->params.tx_rate.ht_info; if (!priv->is_data_rate_auto) priv->data_rate = - mwifiex_index_to_data_rate(priv->tx_rate, + mwifiex_index_to_data_rate(priv, priv->tx_rate, priv->tx_htinfo); return 0; diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c index ea4a29b7e331..4b6f5539657d 100644 --- a/drivers/net/wireless/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -832,8 +832,8 @@ int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, if (!ret) { if (rate->is_rate_auto) - rate->rate = mwifiex_index_to_data_rate(priv->tx_rate, - priv->tx_htinfo); + rate->rate = mwifiex_index_to_data_rate(priv, + priv->tx_rate, priv->tx_htinfo); else rate->rate = priv->data_rate; } else { diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c index 78d0d6988553..2d5cf5ba319b 100644 --- a/drivers/net/wireless/p54/p54spi.c +++ b/drivers/net/wireless/p54/p54spi.c @@ -581,11 +581,7 @@ static void p54spi_op_stop(struct ieee80211_hw *dev) struct p54s_priv *priv = dev->priv; unsigned long flags; - if (mutex_lock_interruptible(&priv->mutex)) { - /* FIXME: how to handle this error? */ - return; - } - + mutex_lock(&priv->mutex); WARN_ON(priv->fw_state != FW_STATE_READY); p54spi_power_off(priv); diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c index 6ed9c323e3cb..42b97bc38477 100644 --- a/drivers/net/wireless/p54/txrx.c +++ b/drivers/net/wireless/p54/txrx.c @@ -242,7 +242,7 @@ void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb) skb_unlink(skb, &priv->tx_queue); p54_tx_qos_accounting_free(priv, skb); - dev_kfree_skb_any(skb); + ieee80211_free_txskb(dev, skb); } EXPORT_SYMBOL_GPL(p54_free_skb); @@ -788,7 +788,7 @@ void p54_tx_80211(struct ieee80211_hw *dev, struct sk_buff *skb) &hdr_flags, &aid, &burst_allowed); if (p54_tx_qos_accounting_alloc(priv, skb, queue)) { - dev_kfree_skb_any(skb); + ieee80211_free_txskb(dev, skb); return; } diff --git a/drivers/net/wireless/prism54/islpci_dev.c b/drivers/net/wireless/prism54/islpci_dev.c index 5d0f61508a2e..8a3cf4fe376f 100644 --- a/drivers/net/wireless/prism54/islpci_dev.c +++ b/drivers/net/wireless/prism54/islpci_dev.c @@ -793,8 +793,8 @@ islpci_set_multicast_list(struct net_device *dev) static void islpci_ethtool_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); + strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); + strlcpy(info->version, DRV_VERSION, sizeof(info->version)); } static const struct ethtool_ops islpci_ethtool_ops = { diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c index 620e3c0e88e0..3802c31fefcd 100644 --- a/drivers/net/wireless/rndis_wlan.c +++ b/drivers/net/wireless/rndis_wlan.c @@ -244,6 +244,10 @@ enum ndis_80211_power_mode { NDIS_80211_POWER_MODE_FAST_PSP, }; +enum ndis_80211_pmkid_cand_list_flag_bits { + NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0) +}; + struct ndis_80211_auth_request { __le32 length; u8 bssid[6]; @@ -387,19 +391,17 @@ struct ndis_80211_capability { struct ndis_80211_bssid_info { u8 bssid[6]; u8 pmkid[16]; -}; +} __packed; struct ndis_80211_pmkid { __le32 length; __le32 bssid_info_count; struct ndis_80211_bssid_info bssid_info[0]; -}; +} __packed; /* * private data */ -#define NET_TYPE_11FB 0 - #define CAP_MODE_80211A 1 #define CAP_MODE_80211B 2 #define CAP_MODE_80211G 4 @@ -1347,6 +1349,32 @@ static int set_channel(struct usbnet *usbdev, int channel) return ret; } +static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev, + u16 *beacon_interval) +{ + struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); + struct ieee80211_channel *channel; + struct ndis_80211_conf config; + int len, ret; + + /* Get channel and beacon interval */ + len = sizeof(config); + ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len); + netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n", + __func__, ret); + if (ret < 0) + return NULL; + + channel = ieee80211_get_channel(priv->wdev.wiphy, + KHZ_TO_MHZ(le32_to_cpu(config.ds_config))); + if (!channel) + return NULL; + + if (beacon_interval) + *beacon_interval = le16_to_cpu(config.beacon_period); + return channel; +} + /* index must be 0 - N, as per NDIS */ static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len, int index) @@ -2650,13 +2678,12 @@ static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid, { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct ieee80211_channel *channel; - struct ndis_80211_conf config; struct ndis_80211_ssid ssid; struct cfg80211_bss *bss; s32 signal; u64 timestamp; u16 capability; - u16 beacon_interval; + u16 beacon_interval = 0; __le32 rssi; u8 ie_buf[34]; int len, ret, ie_len; @@ -2681,22 +2708,10 @@ static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid, } /* Get channel and beacon interval */ - len = sizeof(config); - ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len); - netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n", - __func__, ret); - if (ret >= 0) { - beacon_interval = le16_to_cpu(config.beacon_period); - channel = ieee80211_get_channel(priv->wdev.wiphy, - KHZ_TO_MHZ(le32_to_cpu(config.ds_config))); - if (!channel) { - netdev_warn(usbdev->net, "%s(): could not get channel." - "\n", __func__); - return; - } - } else { - netdev_warn(usbdev->net, "%s(): could not get configuration.\n", - __func__); + channel = get_current_channel(usbdev, &beacon_interval); + if (!channel) { + netdev_warn(usbdev->net, "%s(): could not get channel.\n", + __func__); return; } @@ -2841,8 +2856,9 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev) req_ie_len, resp_ie, resp_ie_len, 0, GFP_KERNEL); else - cfg80211_roamed(usbdev->net, NULL, bssid, - req_ie, req_ie_len, + cfg80211_roamed(usbdev->net, + get_current_channel(usbdev, NULL), + bssid, req_ie, req_ie_len, resp_ie, resp_ie_len, GFP_KERNEL); } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC) cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL); @@ -3008,25 +3024,13 @@ static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev, for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) { struct ndis_80211_pmkid_candidate *cand = &cand_list->candidate_list[i]; + bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH); - netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n", - i, le32_to_cpu(cand->flags), cand->bssid); - -#if 0 - struct iw_pmkid_cand pcand; - union iwreq_data wrqu; + netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n", + i, le32_to_cpu(cand->flags), preauth, cand->bssid); - memset(&pcand, 0, sizeof(pcand)); - if (le32_to_cpu(cand->flags) & 0x01) - pcand.flags |= IW_PMKID_CAND_PREAUTH; - pcand.index = i; - memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN); - - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = sizeof(pcand); - wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu, - (u8 *)&pcand); -#endif + cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid, + preauth, GFP_ATOMIC); } } diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index b4ce93436d2e..a13ecfce4825 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -345,9 +345,9 @@ static void _rtl_init_mac80211(struct ieee80211_hw *hw) if (is_valid_ether_addr(rtlefuse->dev_addr)) { SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr); } else { - u8 rtlmac[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; - get_random_bytes((rtlmac + (ETH_ALEN - 1)), 1); - SET_IEEE80211_PERM_ADDR(hw, rtlmac); + u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; + get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1); + SET_IEEE80211_PERM_ADDR(hw, rtlmac1); } } diff --git a/drivers/net/wireless/rtlwifi/base.h b/drivers/net/wireless/rtlwifi/base.h index 4ae905983d0d..f66b5757f6b9 100644 --- a/drivers/net/wireless/rtlwifi/base.h +++ b/drivers/net/wireless/rtlwifi/base.h @@ -76,7 +76,7 @@ enum ap_peer { SET_BITS_TO_LE_2BYTE(_hdr, 8, 1, _val) #define SET_80211_PS_POLL_AID(_hdr, _val) \ - (*(u16 *)((u8 *)(_hdr) + 2) = le16_to_cpu(_val)) + (*(u16 *)((u8 *)(_hdr) + 2) = _val) #define SET_80211_PS_POLL_BSSID(_hdr, _val) \ memcpy(((u8 *)(_hdr)) + 4, (u8 *)(_val), ETH_ALEN) #define SET_80211_PS_POLL_TA(_hdr, _val) \ diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index eb61061821e4..b6683a247b51 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -890,9 +890,6 @@ static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id) if (rtlpriv->rtlhal.earlymode_enable) tasklet_schedule(&rtlpriv->works.irq_tasklet); - spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); - return IRQ_HANDLED; - done: spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); return IRQ_HANDLED; diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c index 950c65a15b8a..fa393dfe136c 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c @@ -73,6 +73,34 @@ static void _rtl92c_enable_fw_download(struct ieee80211_hw *hw, bool enable) } } +static void rtl_block_fw_writeN(struct ieee80211_hw *hw, const u8 *buffer, + u32 size) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u32 blockSize = REALTEK_USB_VENQT_MAX_BUF_SIZE - 20; + u8 *bufferPtr = (u8 *) buffer; + u32 i, offset, blockCount, remainSize; + + blockCount = size / blockSize; + remainSize = size % blockSize; + + for (i = 0; i < blockCount; i++) { + offset = i * blockSize; + rtlpriv->io.writeN_sync(rtlpriv, + (FW_8192C_START_ADDRESS + offset), + (void *)(bufferPtr + offset), + blockSize); + } + + if (remainSize) { + offset = blockCount * blockSize; + rtlpriv->io.writeN_sync(rtlpriv, + (FW_8192C_START_ADDRESS + offset), + (void *)(bufferPtr + offset), + remainSize); + } +} + static void _rtl92c_fw_block_write(struct ieee80211_hw *hw, const u8 *buffer, u32 size) { @@ -81,23 +109,30 @@ static void _rtl92c_fw_block_write(struct ieee80211_hw *hw, u8 *bufferPtr = (u8 *) buffer; u32 *pu4BytePtr = (u32 *) buffer; u32 i, offset, blockCount, remainSize; + u32 data; + if (rtlpriv->io.writeN_sync) { + rtl_block_fw_writeN(hw, buffer, size); + return; + } blockCount = size / blockSize; remainSize = size % blockSize; + if (remainSize) { + /* the last word is < 4 bytes - pad it with zeros */ + for (i = 0; i < 4 - remainSize; i++) + *(bufferPtr + size + i) = 0; + blockCount++; + } for (i = 0; i < blockCount; i++) { offset = i * blockSize; + /* for big-endian platforms, the firmware data need to be byte + * swapped as it was read as a byte string and will be written + * as 32-bit dwords and byte swapped when written + */ + data = le32_to_cpu(*(__le32 *)(pu4BytePtr + i)); rtl_write_dword(rtlpriv, (FW_8192C_START_ADDRESS + offset), - *(pu4BytePtr + i)); - } - - if (remainSize) { - offset = blockCount * blockSize; - bufferPtr += offset; - for (i = 0; i < remainSize; i++) { - rtl_write_byte(rtlpriv, (FW_8192C_START_ADDRESS + - offset + i), *(bufferPtr + i)); - } + data); } } @@ -238,8 +273,9 @@ int rtl92c_download_fw(struct ieee80211_hw *hw) if (IS_FW_HEADER_EXIST(pfwheader)) { RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG, ("Firmware Version(%d), Signature(%#x),Size(%d)\n", - pfwheader->version, pfwheader->signature, - (uint)sizeof(struct rtl92c_firmware_header))); + le16_to_cpu(pfwheader->version), + le16_to_cpu(pfwheader->signature), + (uint)sizeof(struct rtl92c_firmware_header))); pfwdata = pfwdata + sizeof(struct rtl92c_firmware_header); fwsize = fwsize - sizeof(struct rtl92c_firmware_header); diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h index 3d5823c12621..cec5a3a1cc53 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h +++ b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h @@ -32,32 +32,32 @@ #define FW_8192C_SIZE 0x3000 #define FW_8192C_START_ADDRESS 0x1000 -#define FW_8192C_END_ADDRESS 0x3FFF +#define FW_8192C_END_ADDRESS 0x1FFF #define FW_8192C_PAGE_SIZE 4096 #define FW_8192C_POLLING_DELAY 5 #define FW_8192C_POLLING_TIMEOUT_COUNT 100 #define IS_FW_HEADER_EXIST(_pfwhdr) \ - ((_pfwhdr->signature&0xFFF0) == 0x92C0 ||\ - (_pfwhdr->signature&0xFFF0) == 0x88C0) + ((le16_to_cpu(_pfwhdr->signature)&0xFFF0) == 0x92C0 ||\ + (le16_to_cpu(_pfwhdr->signature)&0xFFF0) == 0x88C0) struct rtl92c_firmware_header { - u16 signature; + __le16 signature; u8 category; u8 function; - u16 version; + __le16 version; u8 subversion; u8 rsvd1; u8 month; u8 date; u8 hour; u8 minute; - u16 ramcodeSize; - u16 rsvd2; - u32 svnindex; - u32 rsvd3; - u32 rsvd4; - u32 rsvd5; + __le16 ramcodeSize; + __le16 rsvd2; + __le32 svnindex; + __le32 rsvd3; + __le32 rsvd4; + __le32 rsvd5; }; enum rtl8192c_h2c_cmd { @@ -94,5 +94,6 @@ void rtl92c_firmware_selfreset(struct ieee80211_hw *hw); void rtl92c_set_fw_pwrmode_cmd(struct ieee80211_hw *hw, u8 mode); void rtl92c_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, bool b_dl_finished); void rtl92c_set_fw_joinbss_report_cmd(struct ieee80211_hw *hw, u8 mstatus); +void usb_writeN_async(struct rtl_priv *rtlpriv, u32 addr, void *data, u16 len); #endif diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c index 814c05df51e8..4ed973a3aa17 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c @@ -498,7 +498,7 @@ static void _rtl92cu_read_adapter_info(struct ieee80211_hw *hw) } RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_LOUD, ("MAP\n"), hwinfo, HWSET_MAX_SIZE); - eeprom_id = *((u16 *)&hwinfo[0]); + eeprom_id = le16_to_cpu(*((__le16 *)&hwinfo[0])); if (eeprom_id != RTL8190_EEPROM_ID) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("EEPROM ID(%#x) is invalid!!\n", eeprom_id)); @@ -516,13 +516,14 @@ static void _rtl92cu_read_adapter_info(struct ieee80211_hw *hw) pr_info("MAC address: %pM\n", rtlefuse->dev_addr); _rtl92cu_read_txpower_info_from_hwpg(hw, rtlefuse->autoload_failflag, hwinfo); - rtlefuse->eeprom_vid = *(u16 *)&hwinfo[EEPROM_VID]; - rtlefuse->eeprom_did = *(u16 *)&hwinfo[EEPROM_DID]; + rtlefuse->eeprom_vid = le16_to_cpu(*(__le16 *)&hwinfo[EEPROM_VID]); + rtlefuse->eeprom_did = le16_to_cpu(*(__le16 *)&hwinfo[EEPROM_DID]); RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, (" VID = 0x%02x PID = 0x%02x\n", rtlefuse->eeprom_vid, rtlefuse->eeprom_did)); rtlefuse->eeprom_channelplan = *(u8 *)&hwinfo[EEPROM_CHANNELPLAN]; - rtlefuse->eeprom_version = *(u16 *)&hwinfo[EEPROM_VERSION]; + rtlefuse->eeprom_version = + le16_to_cpu(*(__le16 *)&hwinfo[EEPROM_VERSION]); rtlefuse->txpwr_fromeprom = true; rtlefuse->eeprom_oemid = *(u8 *)&hwinfo[EEPROM_CUSTOMER_ID]; RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c index 060a06f4a885..9e0c8fcdf90f 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c @@ -84,6 +84,7 @@ void rtl92c_read_chip_version(struct ieee80211_hw *hw) } } rtlhal->version = (enum version_8192c)chip_version; + pr_info("rtl8192cu: Chip version 0x%x\n", chip_version); switch (rtlhal->version) { case VERSION_NORMAL_TSMC_CHIP_92C_1T2R: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c index bc33b147f44f..b3cc7b949992 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c @@ -491,7 +491,7 @@ static void _rtl_tx_desc_checksum(u8 *txdesc) SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, 0); for (index = 0; index < 16; index++) checksum = checksum ^ (*(ptr + index)); - SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, checksum); + SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, cpu_to_le16(checksum)); } void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw, diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index 54cb8a60514d..e956fa71d040 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -34,13 +34,14 @@ #include "usb.h" #include "base.h" #include "ps.h" +#include "rtl8192c/fw_common.h" #define REALTEK_USB_VENQT_READ 0xC0 #define REALTEK_USB_VENQT_WRITE 0x40 #define REALTEK_USB_VENQT_CMD_REQ 0x05 #define REALTEK_USB_VENQT_CMD_IDX 0x00 -#define REALTEK_USB_VENQT_MAX_BUF_SIZE 254 +#define MAX_USBCTRL_VENDORREQ_TIMES 10 static void usbctrl_async_callback(struct urb *urb) { @@ -82,6 +83,7 @@ static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request, dr->wValue = cpu_to_le16(value); dr->wIndex = cpu_to_le16(index); dr->wLength = cpu_to_le16(len); + /* data are already in little-endian order */ memcpy(buf, pdata, len); usb_fill_control_urb(urb, udev, pipe, (unsigned char *)dr, buf, len, @@ -100,16 +102,28 @@ static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request, unsigned int pipe; int status; u8 reqtype; + int vendorreq_times = 0; + static int count; pipe = usb_rcvctrlpipe(udev, 0); /* read_in */ reqtype = REALTEK_USB_VENQT_READ; - status = usb_control_msg(udev, pipe, request, reqtype, value, index, - pdata, len, 0); /* max. timeout */ + do { + status = usb_control_msg(udev, pipe, request, reqtype, value, + index, pdata, len, 0); /*max. timeout*/ + if (status < 0) { + /* firmware download is checksumed, don't retry */ + if ((value >= FW_8192C_START_ADDRESS && + value <= FW_8192C_END_ADDRESS)) + break; + } else { + break; + } + } while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES); - if (status < 0) + if (status < 0 && count++ < 4) pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n", - value, status, *(u32 *)pdata); + value, status, le32_to_cpu(*(u32 *)pdata)); return status; } @@ -129,7 +143,7 @@ static u32 _usb_read_sync(struct usb_device *udev, u32 addr, u16 len) wvalue = (u16)addr; _usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len); - ret = *data; + ret = le32_to_cpu(*data); kfree(data); return ret; } @@ -161,12 +175,12 @@ static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val, u8 request; u16 wvalue; u16 index; - u32 data; + __le32 data; request = REALTEK_USB_VENQT_CMD_REQ; index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ wvalue = (u16)(addr&0x0000ffff); - data = val; + data = cpu_to_le32(val); _usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data, len); } @@ -192,6 +206,30 @@ static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val) _usb_write_async(to_usb_device(dev), addr, val, 4); } +static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data, + u16 len) +{ + struct device *dev = rtlpriv->io.dev; + struct usb_device *udev = to_usb_device(dev); + u8 request = REALTEK_USB_VENQT_CMD_REQ; + u8 reqtype = REALTEK_USB_VENQT_WRITE; + u16 wvalue; + u16 index = REALTEK_USB_VENQT_CMD_IDX; + int pipe = usb_sndctrlpipe(udev, 0); /* write_out */ + u8 *buffer; + dma_addr_t dma_addr; + + wvalue = (u16)(addr&0x0000ffff); + buffer = usb_alloc_coherent(udev, (size_t)len, GFP_ATOMIC, &dma_addr); + if (!buffer) + return; + memcpy(buffer, data, len); + usb_control_msg(udev, pipe, request, reqtype, wvalue, + index, buffer, len, 50); + + usb_free_coherent(udev, (size_t)len, buffer, dma_addr); +} + static void _rtl_usb_io_handler_init(struct device *dev, struct ieee80211_hw *hw) { @@ -205,6 +243,7 @@ static void _rtl_usb_io_handler_init(struct device *dev, rtlpriv->io.read8_sync = _usb_read8_sync; rtlpriv->io.read16_sync = _usb_read16_sync; rtlpriv->io.read32_sync = _usb_read32_sync; + rtlpriv->io.writeN_sync = _usb_writeN_sync; } static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw) diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h index 713c7ddba8eb..f3c132b55d42 100644 --- a/drivers/net/wireless/rtlwifi/wifi.h +++ b/drivers/net/wireless/rtlwifi/wifi.h @@ -63,6 +63,7 @@ #define AC_MAX 4 #define QOS_QUEUE_NUM 4 #define RTL_MAC80211_NUM_QUEUE 5 +#define REALTEK_USB_VENQT_MAX_BUF_SIZE 254 #define QBSS_LOAD_SIZE 5 #define MAX_WMMELE_LENGTH 64 @@ -943,8 +944,10 @@ struct rtl_io { unsigned long pci_base_addr; /*device I/O address */ void (*write8_async) (struct rtl_priv *rtlpriv, u32 addr, u8 val); - void (*write16_async) (struct rtl_priv *rtlpriv, u32 addr, __le16 val); - void (*write32_async) (struct rtl_priv *rtlpriv, u32 addr, __le32 val); + void (*write16_async) (struct rtl_priv *rtlpriv, u32 addr, u16 val); + void (*write32_async) (struct rtl_priv *rtlpriv, u32 addr, u32 val); + void (*writeN_sync) (struct rtl_priv *rtlpriv, u32 addr, void *buf, + u16 len); u8(*read8_sync) (struct rtl_priv *rtlpriv, u32 addr); u16(*read16_sync) (struct rtl_priv *rtlpriv, u32 addr); diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index f9261c253735..97bfebfcce90 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -1169,6 +1169,21 @@ enum nl80211_commands { * @NL80211_ATTR_PROBE_RESP: Probe Response template data. Contains the entire * probe-response frame. The DA field in the 802.11 header is zero-ed out, * to be filled by the FW. + * @NL80211_ATTR_DISABLE_HT: Force HT capable interfaces to disable + * this feature. Currently, only supported in mac80211 drivers. + * @NL80211_ATTR_HT_CAPABILITY_MASK: Specify which bits of the + * ATTR_HT_CAPABILITY to which attention should be paid. + * Currently, only mac80211 NICs support this feature. + * The values that may be configured are: + * MCS rates, MAX-AMSDU, HT-20-40 and HT_CAP_SGI_40 + * AMPDU density and AMPDU factor. + * All values are treated as suggestions and may be ignored + * by the driver as required. The actual values may be seen in + * the station debugfs ht_caps file. + * + * @NL80211_ATTR_DFS_REGION: region for regulatory rules which this country + * abides to when initiating radiation on DFS channels. A country maps + * to one DFS region. * * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -1408,6 +1423,11 @@ enum nl80211_attrs { NL80211_ATTR_PROBE_RESP, + NL80211_ATTR_DFS_REGION, + + NL80211_ATTR_DISABLE_HT, + NL80211_ATTR_HT_CAPABILITY_MASK, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -1917,6 +1937,21 @@ enum nl80211_reg_rule_flags { }; /** + * enum nl80211_dfs_regions - regulatory DFS regions + * + * @NL80211_DFS_UNSET: Country has no DFS master region specified + * @NL80211_DFS_FCC_: Country follows DFS master rules from FCC + * @NL80211_DFS_FCC_: Country follows DFS master rules from ETSI + * @NL80211_DFS_JP_: Country follows DFS master rules from JP/MKK/Telec + */ +enum nl80211_dfs_regions { + NL80211_DFS_UNSET = 0, + NL80211_DFS_FCC = 1, + NL80211_DFS_ETSI = 2, + NL80211_DFS_JP = 3, +}; + +/** * enum nl80211_survey_info - survey information * * These attribute types are used with %NL80211_ATTR_SURVEY_INFO diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 8d7ba0961d3e..d5e18913f293 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1044,6 +1044,15 @@ struct cfg80211_auth_request { }; /** + * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association. + * + * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n) + */ +enum cfg80211_assoc_req_flags { + ASSOC_REQ_DISABLE_HT = BIT(0), +}; + +/** * struct cfg80211_assoc_request - (Re)Association request data * * This structure provides information needed to complete IEEE 802.11 @@ -1054,6 +1063,10 @@ struct cfg80211_auth_request { * @use_mfp: Use management frame protection (IEEE 802.11w) in this association * @crypto: crypto settings * @prev_bssid: previous BSSID, if not %NULL use reassociate frame + * @flags: See &enum cfg80211_assoc_req_flags + * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask + * will be used in ht_capa. Un-supported values will be ignored. + * @ht_capa_mask: The bits of ht_capa which are to be used. */ struct cfg80211_assoc_request { struct cfg80211_bss *bss; @@ -1061,6 +1074,9 @@ struct cfg80211_assoc_request { size_t ie_len; struct cfg80211_crypto_settings crypto; bool use_mfp; + u32 flags; + struct ieee80211_ht_cap ht_capa; + struct ieee80211_ht_cap ht_capa_mask; }; /** @@ -1159,6 +1175,10 @@ struct cfg80211_ibss_params { * @key_len: length of WEP key for shared key authentication * @key_idx: index of WEP key for shared key authentication * @key: WEP key for shared key authentication + * @flags: See &enum cfg80211_assoc_req_flags + * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask + * will be used in ht_capa. Un-supported values will be ignored. + * @ht_capa_mask: The bits of ht_capa which are to be used. */ struct cfg80211_connect_params { struct ieee80211_channel *channel; @@ -1172,6 +1192,9 @@ struct cfg80211_connect_params { struct cfg80211_crypto_settings crypto; const u8 *key; u8 key_len, key_idx; + u32 flags; + struct ieee80211_ht_cap ht_capa; + struct ieee80211_ht_cap ht_capa_mask; }; /** @@ -1700,6 +1723,8 @@ struct cfg80211_ops { * cfg80211_report_obss_beacon(). * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device * responds to probe-requests in hardware. + * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX. + * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call. */ enum wiphy_flags { WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), @@ -1721,6 +1746,8 @@ enum wiphy_flags { WIPHY_FLAG_HAVE_AP_SME = BIT(17), WIPHY_FLAG_REPORTS_OBSS = BIT(18), WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19), + WIPHY_FLAG_OFFCHAN_TX = BIT(20), + WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21), }; /** @@ -1934,6 +1961,8 @@ struct wiphy_wowlan_support { * @wowlan: WoWLAN support information * * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. + * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. + * If null, then none can be over-ridden. */ struct wiphy { /* assign these fields before you register the wiphy */ @@ -2023,6 +2052,8 @@ struct wiphy { /* dir in debugfs: ieee80211/<wiphyname> */ struct dentry *debugfsdir; + const struct ieee80211_ht_cap *ht_capa_mod_mask; + #ifdef CONFIG_NET_NS /* the network namespace this phy lives in currently */ struct net *_net; @@ -2387,69 +2418,6 @@ extern int ieee80211_radiotap_iterator_next( extern const unsigned char rfc1042_header[6]; extern const unsigned char bridge_tunnel_header[6]; -/* Parsed Information Elements */ -struct ieee802_11_elems { - u8 *ie_start; - size_t total_len; - - /* pointers to IEs */ - u8 *ssid; - u8 *supp_rates; - u8 *fh_params; - u8 *ds_params; - u8 *cf_params; - struct ieee80211_tim_ie *tim; - u8 *ibss_params; - u8 *challenge; - u8 *wpa; - u8 *rsn; - u8 *erp_info; - u8 *ext_supp_rates; - u8 *wmm_info; - u8 *wmm_param; - struct ieee80211_ht_cap *ht_cap_elem; - struct ieee80211_ht_info *ht_info_elem; - struct ieee80211_meshconf_ie *mesh_config; - u8 *mesh_id; - u8 *peering; - u8 *preq; - u8 *prep; - u8 *perr; - struct ieee80211_rann_ie *rann; - u8 *ch_switch_elem; - u8 *country_elem; - u8 *pwr_constr_elem; - u8 *quiet_elem; /* first quite element */ - u8 *timeout_int; - - /* length of them, respectively */ - u8 ssid_len; - u8 supp_rates_len; - u8 fh_params_len; - u8 ds_params_len; - u8 cf_params_len; - u8 tim_len; - u8 ibss_params_len; - u8 challenge_len; - u8 wpa_len; - u8 rsn_len; - u8 erp_info_len; - u8 ext_supp_rates_len; - u8 wmm_info_len; - u8 wmm_param_len; - u8 mesh_id_len; - u8 peering_len; - u8 preq_len; - u8 prep_len; - u8 perr_len; - u8 ch_switch_elem_len; - u8 country_elem_len; - u8 pwr_constr_elem_len; - u8 quiet_elem_len; - u8 num_of_quiet_elem; /* can be more the one */ - u8 timeout_int_len; -}; - /** * ieee80211_get_hdrlen_from_skb - get header length from data * diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 0756049ae76d..5b5c8a7e26d7 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1760,11 +1760,21 @@ enum ieee80211_frame_release_type { * skb contains the buffer starting from the IEEE 802.11 header. * The low-level driver should send the frame out based on * configuration in the TX control data. This handler should, - * preferably, never fail and stop queues appropriately, more - * importantly, however, it must never fail for A-MPDU-queues. - * This function should return NETDEV_TX_OK except in very - * limited cases. - * Must be implemented and atomic. + * preferably, never fail and stop queues appropriately. + * This must be implemented if @tx_frags is not. + * Must be atomic. + * + * @tx_frags: Called to transmit multiple fragments of a single MSDU. + * This handler must consume all fragments, sending out some of + * them only is useless and it can't ask for some of them to be + * queued again. If the frame is not fragmented the queue has a + * single SKB only. To avoid issues with the networking stack + * when TX status is reported the frames should be removed from + * the skb queue. + * If this is used, the tx_info @vif and @sta pointers will be + * invalid -- you must not use them in that case. + * This must be implemented if @tx isn't. + * Must be atomic. * * @start: Called before the first netdevice attached to the hardware * is enabled. This should turn on the hardware and must turn on @@ -2101,6 +2111,8 @@ enum ieee80211_frame_release_type { */ struct ieee80211_ops { void (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb); + void (*tx_frags)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta, struct sk_buff_head *skbs); int (*start)(struct ieee80211_hw *hw); void (*stop)(struct ieee80211_hw *hw); #ifdef CONFIG_PM diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h index cdbe67139343..b61eb6c9df14 100644 --- a/include/net/nfc/nci.h +++ b/include/net/nfc/nci.h @@ -34,30 +34,30 @@ #define NCI_MAX_NUM_CONN 10 /* NCI Status Codes */ -#define NCI_STATUS_OK 0x00 -#define NCI_STATUS_REJECTED 0x01 -#define NCI_STATUS_RF_FRAME_CORRUPTED 0x02 -#define NCI_STATUS_FAILED 0x03 -#define NCI_STATUS_NOT_INITIALIZED 0x04 -#define NCI_STATUS_SYNTAX_ERROR 0x05 -#define NCI_STATUS_SEMANTIC_ERROR 0x06 -#define NCI_STATUS_UNKNOWN_GID 0x07 -#define NCI_STATUS_UNKNOWN_OID 0x08 -#define NCI_STATUS_INVALID_PARAM 0x09 -#define NCI_STATUS_MESSAGE_SIZE_EXCEEDED 0x0a +#define NCI_STATUS_OK 0x00 +#define NCI_STATUS_REJECTED 0x01 +#define NCI_STATUS_RF_FRAME_CORRUPTED 0x02 +#define NCI_STATUS_FAILED 0x03 +#define NCI_STATUS_NOT_INITIALIZED 0x04 +#define NCI_STATUS_SYNTAX_ERROR 0x05 +#define NCI_STATUS_SEMANTIC_ERROR 0x06 +#define NCI_STATUS_UNKNOWN_GID 0x07 +#define NCI_STATUS_UNKNOWN_OID 0x08 +#define NCI_STATUS_INVALID_PARAM 0x09 +#define NCI_STATUS_MESSAGE_SIZE_EXCEEDED 0x0a /* Discovery Specific Status Codes */ -#define NCI_STATUS_DISCOVERY_ALREADY_STARTED 0xa0 -#define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED 0xa1 -#define NCI_STATUS_DISCOVERY_TEAR_DOWN 0xa2 +#define NCI_STATUS_DISCOVERY_ALREADY_STARTED 0xa0 +#define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED 0xa1 +#define NCI_STATUS_DISCOVERY_TEAR_DOWN 0xa2 /* RF Interface Specific Status Codes */ -#define NCI_STATUS_RF_TRANSMISSION_ERROR 0xb0 -#define NCI_STATUS_RF_PROTOCOL_ERROR 0xb1 -#define NCI_STATUS_RF_TIMEOUT_ERROR 0xb2 +#define NCI_STATUS_RF_TRANSMISSION_ERROR 0xb0 +#define NCI_STATUS_RF_PROTOCOL_ERROR 0xb1 +#define NCI_STATUS_RF_TIMEOUT_ERROR 0xb2 /* NFCEE Interface Specific Status Codes */ -#define NCI_STATUS_MAX_ACTIVE_NFCEE_INTERFACES_REACHED 0xc0 -#define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED 0xc1 -#define NCI_STATUS_NFCEE_TRANSMISSION_ERROR 0xc2 -#define NCI_STATUS_NFCEE_PROTOCOL_ERROR 0xc3 +#define NCI_STATUS_MAX_ACTIVE_NFCEE_INTERFACES_REACHED 0xc0 +#define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED 0xc1 +#define NCI_STATUS_NFCEE_TRANSMISSION_ERROR 0xc2 +#define NCI_STATUS_NFCEE_PROTOCOL_ERROR 0xc3 #define NCI_STATUS_NFCEE_TIMEOUT_ERROR 0xc4 /* NCI RF Technology and Mode */ @@ -97,9 +97,9 @@ /* NCI RF Interfaces */ #define NCI_RF_INTERFACE_NFCEE_DIRECT 0x00 -#define NCI_RF_INTERFACE_FRAME 0x01 -#define NCI_RF_INTERFACE_ISO_DEP 0x02 -#define NCI_RF_INTERFACE_NFC_DEP 0x03 +#define NCI_RF_INTERFACE_FRAME 0x01 +#define NCI_RF_INTERFACE_ISO_DEP 0x02 +#define NCI_RF_INTERFACE_NFC_DEP 0x03 /* NCI Reset types */ #define NCI_RESET_TYPE_KEEP_CONFIG 0x00 @@ -118,22 +118,22 @@ /* NCI Discovery Types */ #define NCI_DISCOVERY_TYPE_POLL_A_PASSIVE 0x00 -#define NCI_DISCOVERY_TYPE_POLL_B_PASSIVE 0x01 -#define NCI_DISCOVERY_TYPE_POLL_F_PASSIVE 0x02 -#define NCI_DISCOVERY_TYPE_POLL_A_ACTIVE 0x03 -#define NCI_DISCOVERY_TYPE_POLL_F_ACTIVE 0x05 -#define NCI_DISCOVERY_TYPE_WAKEUP_A_ACTIVE 0x09 -#define NCI_DISCOVERY_TYPE_LISTEN_A_PASSIVE 0x80 -#define NCI_DISCOVERY_TYPE_LISTEN_B_PASSIVE 0x81 -#define NCI_DISCOVERY_TYPE_LISTEN_F_PASSIVE 0x82 -#define NCI_DISCOVERY_TYPE_LISTEN_A_ACTIVE 0x83 -#define NCI_DISCOVERY_TYPE_LISTEN_F_ACTIVE 0x85 +#define NCI_DISCOVERY_TYPE_POLL_B_PASSIVE 0x01 +#define NCI_DISCOVERY_TYPE_POLL_F_PASSIVE 0x02 +#define NCI_DISCOVERY_TYPE_POLL_A_ACTIVE 0x03 +#define NCI_DISCOVERY_TYPE_POLL_F_ACTIVE 0x05 +#define NCI_DISCOVERY_TYPE_WAKEUP_A_ACTIVE 0x09 +#define NCI_DISCOVERY_TYPE_LISTEN_A_PASSIVE 0x80 +#define NCI_DISCOVERY_TYPE_LISTEN_B_PASSIVE 0x81 +#define NCI_DISCOVERY_TYPE_LISTEN_F_PASSIVE 0x82 +#define NCI_DISCOVERY_TYPE_LISTEN_A_ACTIVE 0x83 +#define NCI_DISCOVERY_TYPE_LISTEN_F_ACTIVE 0x85 /* NCI Deactivation Type */ -#define NCI_DEACTIVATE_TYPE_IDLE_MODE 0x00 -#define NCI_DEACTIVATE_TYPE_SLEEP_MODE 0x01 -#define NCI_DEACTIVATE_TYPE_SLEEP_AF_MODE 0x02 -#define NCI_DEACTIVATE_TYPE_DISCOVERY 0x03 +#define NCI_DEACTIVATE_TYPE_IDLE_MODE 0x00 +#define NCI_DEACTIVATE_TYPE_SLEEP_MODE 0x01 +#define NCI_DEACTIVATE_TYPE_SLEEP_AF_MODE 0x02 +#define NCI_DEACTIVATE_TYPE_DISCOVERY 0x03 /* Message Type (MT) */ #define NCI_MT_DATA_PKT 0x00 @@ -165,10 +165,10 @@ #define nci_conn_id(hdr) (__u8)(((hdr)[0])&0x0f) /* GID values */ -#define NCI_GID_CORE 0x0 -#define NCI_GID_RF_MGMT 0x1 -#define NCI_GID_NFCEE_MGMT 0x2 -#define NCI_GID_PROPRIETARY 0xf +#define NCI_GID_CORE 0x0 +#define NCI_GID_RF_MGMT 0x1 +#define NCI_GID_NFCEE_MGMT 0x2 +#define NCI_GID_PROPRIETARY 0xf /* ---- NCI Packet structures ---- */ #define NCI_CTRL_HDR_SIZE 3 diff --git a/include/net/regulatory.h b/include/net/regulatory.h index eb7d3c2d4274..a5f79933e211 100644 --- a/include/net/regulatory.h +++ b/include/net/regulatory.h @@ -48,6 +48,10 @@ enum environment_cap { * 99 - built by driver but a specific alpha2 cannot be determined * 98 - result of an intersection between two regulatory domains * 97 - regulatory domain has not yet been configured + * @dfs_region: If CRDA responded with a regulatory domain that requires + * DFS master operation on a known DFS region (NL80211_DFS_*), + * dfs_region represents that region. Drivers can use this and the + * @alpha2 to adjust their device's DFS parameters as required. * @intersect: indicates whether the wireless core should intersect * the requested regulatory domain with the presently set regulatory * domain. @@ -67,6 +71,7 @@ struct regulatory_request { int wiphy_idx; enum nl80211_reg_initiator initiator; char alpha2[2]; + u8 dfs_region; bool intersect; bool processed; enum environment_cap country_ie_env; @@ -93,6 +98,7 @@ struct ieee80211_reg_rule { struct ieee80211_regdomain { u32 n_reg_rules; char alpha2[2]; + u8 dfs_region; struct ieee80211_reg_rule reg_rules[]; }; diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 1063a7e57d62..2577c45069e5 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -832,7 +832,7 @@ static void sta_apply_parameters(struct ieee80211_local *local, } if (params->ht_capa) - ieee80211_ht_cap_ie_to_sta_ht_cap(sband, + ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, params->ht_capa, &sta->sta.ht_cap); diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 3110cbdc501b..2406b3e7393f 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -63,10 +63,10 @@ static ssize_t sta_flags_read(struct file *file, char __user *userbuf, test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : "" int res = scnprintf(buf, sizeof(buf), - "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", + "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", TEST(AUTH), TEST(ASSOC), TEST(PS_STA), TEST(PS_DRIVER), TEST(AUTHORIZED), - TEST(SHORT_PREAMBLE), TEST(ASSOC_AP), + TEST(SHORT_PREAMBLE), TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT), TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL), TEST(UAPSD), TEST(SP), TEST(TDLS_PEER), diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index b12ed52732c8..49cc5e0e8a6a 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -15,6 +15,14 @@ static inline void drv_tx(struct ieee80211_local *local, struct sk_buff *skb) local->ops->tx(&local->hw, skb); } +static inline void drv_tx_frags(struct ieee80211_local *local, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct sk_buff_head *skbs) +{ + local->ops->tx_frags(&local->hw, vif, sta, skbs); +} + static inline int drv_start(struct ieee80211_local *local) { int ret; diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index d06975098aad..810cfbea6ad1 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -19,7 +19,82 @@ #include "ieee80211_i.h" #include "rate.h" -void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband, +bool ieee80111_cfg_override_disables_ht40(struct ieee80211_sub_if_data *sdata) +{ + const __le16 flg = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40); + if ((sdata->u.mgd.ht_capa_mask.cap_info & flg) && + !(sdata->u.mgd.ht_capa.cap_info & flg)) + return true; + return false; +} + +void __check_htcap_disable(struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta_ht_cap *ht_cap, + u16 flag) +{ + __le16 le_flag = cpu_to_le16(flag); + if (sdata->u.mgd.ht_capa_mask.cap_info & le_flag) { + if (!(sdata->u.mgd.ht_capa.cap_info & le_flag)) + ht_cap->cap &= ~flag; + } +} + +void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta_ht_cap *ht_cap) +{ + u8 *scaps = (u8 *)(&sdata->u.mgd.ht_capa.mcs.rx_mask); + u8 *smask = (u8 *)(&sdata->u.mgd.ht_capa_mask.mcs.rx_mask); + int i; + + if (sdata->vif.type != NL80211_IFTYPE_STATION) { + WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION); + return; + } + + /* NOTE: If you add more over-rides here, update register_hw + * ht_capa_mod_msk logic in main.c as well. + * And, if this method can ever change ht_cap.ht_supported, fix + * the check in ieee80211_add_ht_ie. + */ + + /* check for HT over-rides, MCS rates first. */ + for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { + u8 m = smask[i]; + ht_cap->mcs.rx_mask[i] &= ~m; /* turn off all masked bits */ + /* Add back rates that are supported */ + ht_cap->mcs.rx_mask[i] |= (m & scaps[i]); + } + + /* Force removal of HT-40 capabilities? */ + __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SUP_WIDTH_20_40); + __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_40); + + /* Allow user to disable the max-AMSDU bit. */ + __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_MAX_AMSDU); + + /* Allow user to decrease AMPDU factor */ + if (sdata->u.mgd.ht_capa_mask.ampdu_params_info & + IEEE80211_HT_AMPDU_PARM_FACTOR) { + u8 n = sdata->u.mgd.ht_capa.ampdu_params_info + & IEEE80211_HT_AMPDU_PARM_FACTOR; + if (n < ht_cap->ampdu_factor) + ht_cap->ampdu_factor = n; + } + + /* Allow the user to increase AMPDU density. */ + if (sdata->u.mgd.ht_capa_mask.ampdu_params_info & + IEEE80211_HT_AMPDU_PARM_DENSITY) { + u8 n = (sdata->u.mgd.ht_capa.ampdu_params_info & + IEEE80211_HT_AMPDU_PARM_DENSITY) + >> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT; + if (n > ht_cap->ampdu_density) + ht_cap->ampdu_density = n; + } +} + + +void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, struct ieee80211_ht_cap *ht_cap_ie, struct ieee80211_sta_ht_cap *ht_cap) { @@ -103,6 +178,12 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband, /* handle MCS rate 32 too */ if (sband->ht_cap.mcs.rx_mask[32/8] & ht_cap_ie->mcs.rx_mask[32/8] & 1) ht_cap->mcs.rx_mask[32/8] |= 1; + + /* + * If user has specified capability over-rides, take care + * of that here. + */ + ieee80211_apply_htcap_overrides(sdata, ht_cap); } void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 068cc92d16aa..762243e469df 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -142,6 +142,7 @@ typedef unsigned __bitwise__ ieee80211_tx_result; struct ieee80211_tx_data { struct sk_buff *skb; + struct sk_buff_head skbs; struct ieee80211_local *local; struct ieee80211_sub_if_data *sdata; struct sta_info *sta; @@ -448,6 +449,9 @@ struct ieee80211_if_managed { */ int rssi_min_thold, rssi_max_thold; int last_ave_beacon_signal; + + struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ + struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ }; struct ieee80211_if_ibss { @@ -1039,6 +1043,69 @@ struct ieee80211_ra_tid { u16 tid; }; +/* Parsed Information Elements */ +struct ieee802_11_elems { + u8 *ie_start; + size_t total_len; + + /* pointers to IEs */ + u8 *ssid; + u8 *supp_rates; + u8 *fh_params; + u8 *ds_params; + u8 *cf_params; + struct ieee80211_tim_ie *tim; + u8 *ibss_params; + u8 *challenge; + u8 *wpa; + u8 *rsn; + u8 *erp_info; + u8 *ext_supp_rates; + u8 *wmm_info; + u8 *wmm_param; + struct ieee80211_ht_cap *ht_cap_elem; + struct ieee80211_ht_info *ht_info_elem; + struct ieee80211_meshconf_ie *mesh_config; + u8 *mesh_id; + u8 *peering; + u8 *preq; + u8 *prep; + u8 *perr; + struct ieee80211_rann_ie *rann; + u8 *ch_switch_elem; + u8 *country_elem; + u8 *pwr_constr_elem; + u8 *quiet_elem; /* first quite element */ + u8 *timeout_int; + + /* length of them, respectively */ + u8 ssid_len; + u8 supp_rates_len; + u8 fh_params_len; + u8 ds_params_len; + u8 cf_params_len; + u8 tim_len; + u8 ibss_params_len; + u8 challenge_len; + u8 wpa_len; + u8 rsn_len; + u8 erp_info_len; + u8 ext_supp_rates_len; + u8 wmm_info_len; + u8 wmm_param_len; + u8 mesh_id_len; + u8 peering_len; + u8 preq_len; + u8 prep_len; + u8 perr_len; + u8 ch_switch_elem_len; + u8 country_elem_len; + u8 pwr_constr_elem_len; + u8 quiet_elem_len; + u8 num_of_quiet_elem; /* can be more the one */ + u8 timeout_int_len; +}; + static inline struct ieee80211_local *hw_to_local( struct ieee80211_hw *hw) { @@ -1188,7 +1255,11 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); /* HT */ -void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband, +bool ieee80111_cfg_override_disables_ht40(struct ieee80211_sub_if_data *sdata); +void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta_ht_cap *ht_cap); +void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, struct ieee80211_ht_cap *ht_cap_ie, struct ieee80211_sta_ht_cap *ht_cap); void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, @@ -1343,7 +1414,7 @@ void ieee80211_recalc_smps(struct ieee80211_local *local); size_t ieee80211_ie_split(const u8 *ies, size_t ielen, const u8 *ids, int n_ids, size_t offset); size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); -u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband, +u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, u16 cap); u8 *ieee80211_ie_build_ht_info(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 12a6d4bb5d37..b34ca0cbdf6c 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -474,7 +474,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); synchronize_rcu(); kfree(old_beacon); - kfree(old_probe_resp); + kfree_skb(old_probe_resp); /* down all dependent devices, that is VLANs */ list_for_each_entry_safe(vlan, tmpsdata, &sdata->u.ap.vlans, diff --git a/net/mac80211/main.c b/net/mac80211/main.c index e323d4e6647b..dddedfad5404 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -558,6 +558,19 @@ ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { }, }; +static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { + .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | + IEEE80211_HT_AMPDU_PARM_DENSITY, + + .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_MAX_AMSDU | + IEEE80211_HT_CAP_SGI_40), + .mcs = { + .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, }, + }, +}; + struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, const struct ieee80211_ops *ops) { @@ -594,7 +607,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, wiphy->flags |= WIPHY_FLAG_NETNS_OK | WIPHY_FLAG_4ADDR_AP | WIPHY_FLAG_4ADDR_STATION | - WIPHY_FLAG_REPORTS_OBSS; + WIPHY_FLAG_REPORTS_OBSS | + WIPHY_FLAG_OFFCHAN_TX | + WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; wiphy->features = NL80211_FEATURE_SK_TX_STATUS; @@ -609,7 +624,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); - BUG_ON(!ops->tx); + BUG_ON(!ops->tx && !ops->tx_frags); BUG_ON(!ops->start); BUG_ON(!ops->stop); BUG_ON(!ops->config); @@ -629,6 +644,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->user_power_level = -1; local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; + wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; INIT_LIST_HEAD(&local->interfaces); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index b3a125f60347..ee82d2f7f114 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -366,7 +366,7 @@ int mesh_add_ht_cap_ie(struct sk_buff *skb, return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap)); - ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap); + ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, sband->ht_cap.cap); return 0; } diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index a7afb2d32def..ce3db2735d7c 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -867,10 +867,11 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags) return; } - spin_lock_bh(&mpath->state_lock); + spin_lock(&mpath->state_lock); if (mpath->flags & MESH_PATH_REQ_QUEUED) { - spin_unlock_bh(&mpath->state_lock); + spin_unlock(&mpath->state_lock); spin_unlock_bh(&ifmsh->mesh_preq_queue_lock); + kfree(preq_node); return; } @@ -878,7 +879,7 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags) preq_node->flags = flags; mpath->flags |= MESH_PATH_REQ_QUEUED; - spin_unlock_bh(&mpath->state_lock); + spin_unlock(&mpath->state_lock); list_add_tail(&preq_node->list, &ifmsh->preq_queue.list); ++ifmsh->preq_queue_len; diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 4fc23d1b9c3a..7bd2a76aef0e 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -69,8 +69,6 @@ static inline struct mesh_table *resize_dereference_mpp_paths(void) lockdep_is_held(&pathtbl_resize_lock)); } -static int mesh_gate_add(struct mesh_table *tbl, struct mesh_path *mpath); - /* * CAREFUL -- "tbl" must not be an expression, * in particular not an rcu_dereference(), since @@ -420,21 +418,18 @@ static void mesh_gate_node_reclaim(struct rcu_head *rp) } /** - * mesh_gate_add - mark mpath as path to a mesh gate and add to known_gates - * @mesh_tbl: table which contains known_gates list - * @mpath: mpath to known mesh gate - * - * Returns: 0 on success - * + * mesh_path_add_gate - add the given mpath to a mesh gate to our path table + * @mpath: gate path to add to table */ -static int mesh_gate_add(struct mesh_table *tbl, struct mesh_path *mpath) +int mesh_path_add_gate(struct mesh_path *mpath) { + struct mesh_table *tbl; struct mpath_node *gate, *new_gate; struct hlist_node *n; int err; rcu_read_lock(); - tbl = rcu_dereference(tbl); + tbl = rcu_dereference(mesh_paths); hlist_for_each_entry_rcu(gate, n, tbl->known_gates, list) if (gate->mpath == mpath) { @@ -478,8 +473,6 @@ static int mesh_gate_del(struct mesh_table *tbl, struct mesh_path *mpath) struct mpath_node *gate; struct hlist_node *p, *q; - tbl = rcu_dereference(tbl); - hlist_for_each_entry_safe(gate, p, q, tbl->known_gates, list) if (gate->mpath == mpath) { spin_lock_bh(&tbl->gates_lock); @@ -498,16 +491,6 @@ static int mesh_gate_del(struct mesh_table *tbl, struct mesh_path *mpath) } /** - * - * mesh_path_add_gate - add the given mpath to a mesh gate to our path table - * @mpath: gate path to add to table - */ -int mesh_path_add_gate(struct mesh_path *mpath) -{ - return mesh_gate_add(mesh_paths, mpath); -} - -/** * mesh_gate_num - number of gates known to this interface * @sdata: subif data */ diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 0140e88a8220..7314372b12ba 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -101,7 +101,8 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata, set_sta_flag(sta, WLAN_STA_WME); sta->sta.supp_rates[local->hw.conf.channel->band] = rates; if (elems->ht_cap_elem) - ieee80211_ht_cap_ie_to_sta_ht_cap(sband, elems->ht_cap_elem, + ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, + elems->ht_cap_elem, &sta->sta.ht_cap); rate_control_rate_init(sta); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index f9ec15b3fe09..09019d135942 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -209,6 +209,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, channel_type = NL80211_CHAN_HT20; if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) && + !ieee80111_cfg_override_disables_ht40(sdata) && (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) && (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) { switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { @@ -1120,6 +1121,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, /* on the next assoc, re-program HT parameters */ sdata->ht_opmode_valid = false; + memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); + memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask)); local->power_constr_level = 0; @@ -1359,9 +1362,6 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) ieee80211_set_disassoc(sdata, true, true); mutex_unlock(&ifmgd->mtx); - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); /* * must be outside lock due to cfg80211, * but that's not a problem. @@ -1370,6 +1370,10 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) IEEE80211_STYPE_DEAUTH, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, NULL, true); + + mutex_lock(&local->mtx); + ieee80211_recalc_idle(local); + mutex_unlock(&local->mtx); } void ieee80211_beacon_connection_loss_work(struct work_struct *work) @@ -1575,7 +1579,6 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk, set_sta_flag(sta, WLAN_STA_AUTH); set_sta_flag(sta, WLAN_STA_ASSOC); - set_sta_flag(sta, WLAN_STA_ASSOC_AP); if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) set_sta_flag(sta, WLAN_STA_AUTHORIZED); @@ -1613,7 +1616,7 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk, sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) - ieee80211_ht_cap_ie_to_sta_ht_cap(sband, + ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems.ht_cap_elem, &sta->sta.ht_cap); ap_ht_cap_flags = sta->sta.ht_cap.cap; @@ -1982,7 +1985,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - ieee80211_ht_cap_ie_to_sta_ht_cap(sband, + ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems.ht_cap_elem, &sta->sta.ht_cap); ap_ht_cap_flags = sta->sta.ht_cap.cap; @@ -2136,9 +2139,6 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, ieee80211_set_disassoc(sdata, true, true); mutex_unlock(&ifmgd->mtx); - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); /* * must be outside lock due to cfg80211, * but that's not a problem. @@ -2146,6 +2146,11 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, ieee80211_send_deauth_disassoc(sdata, bssid, IEEE80211_STYPE_DEAUTH, reason, NULL, true); + + mutex_lock(&local->mtx); + ieee80211_recalc_idle(local); + mutex_unlock(&local->mtx); + mutex_lock(&ifmgd->mtx); } @@ -2640,6 +2645,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + if (req->flags & ASSOC_REQ_DISABLE_HT) + ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + + memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); + memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, + sizeof(ifmgd->ht_capa_mask)); + if (req->ie && req->ie_len) { memcpy(wk->ie, req->ie, req->ie_len); wk->ie_len = req->ie_len; diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index 3d414411a96e..ebd8cccac8f2 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -212,8 +212,6 @@ static void ieee80211_hw_roc_start(struct work_struct *work) return; } - ieee80211_recalc_idle(local); - if (local->hw_roc_skb) { sdata = IEEE80211_DEV_TO_SUB_IF(local->hw_roc_dev); ieee80211_tx_skb(sdata, local->hw_roc_skb); @@ -227,6 +225,8 @@ static void ieee80211_hw_roc_start(struct work_struct *work) GFP_KERNEL); } + ieee80211_recalc_idle(local); + mutex_unlock(&local->mtx); } diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index cdb28535716b..ff5f7b84e825 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -36,8 +36,17 @@ /* Transmit duration for the raw data part of an average sized packet */ #define MCS_DURATION(streams, sgi, bps) MCS_SYMBOL_TIME(sgi, MCS_NSYMS((streams) * (bps))) +/* + * Define group sort order: HT40 -> SGI -> #streams + */ +#define GROUP_IDX(_streams, _sgi, _ht40) \ + MINSTREL_MAX_STREAMS * 2 * _ht40 + \ + MINSTREL_MAX_STREAMS * _sgi + \ + _streams - 1 + /* MCS rate information for an MCS group */ -#define MCS_GROUP(_streams, _sgi, _ht40) { \ +#define MCS_GROUP(_streams, _sgi, _ht40) \ + [GROUP_IDX(_streams, _sgi, _ht40)] = { \ .streams = _streams, \ .flags = \ (_sgi ? IEEE80211_TX_RC_SHORT_GI : 0) | \ @@ -58,6 +67,9 @@ * To enable sufficiently targeted rate sampling, MCS rates are divided into * groups, based on the number of streams and flags (HT40, SGI) that they * use. + * + * Sortorder has to be fixed for GROUP_IDX macro to be applicable: + * HT40 -> SGI -> #streams */ const struct mcs_group minstrel_mcs_groups[] = { MCS_GROUP(1, 0, 0), @@ -102,21 +114,9 @@ minstrel_ewma(int old, int new, int weight) static int minstrel_ht_get_group_idx(struct ieee80211_tx_rate *rate) { - int streams = (rate->idx / MCS_GROUP_RATES) + 1; - u32 flags = IEEE80211_TX_RC_SHORT_GI | IEEE80211_TX_RC_40_MHZ_WIDTH; - int i; - - for (i = 0; i < ARRAY_SIZE(minstrel_mcs_groups); i++) { - if (minstrel_mcs_groups[i].streams != streams) - continue; - if (minstrel_mcs_groups[i].flags != (rate->flags & flags)) - continue; - - return i; - } - - WARN_ON(1); - return 0; + return GROUP_IDX((rate->idx / MCS_GROUP_RATES) + 1, + !!(rate->flags & IEEE80211_TX_RC_SHORT_GI), + !!(rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)); } static inline struct minstrel_rate_stats * @@ -130,7 +130,7 @@ minstrel_get_ratestats(struct minstrel_ht_sta *mi, int index) * Recalculate success probabilities and counters for a rate using EWMA */ static void -minstrel_calc_rate_ewma(struct minstrel_priv *mp, struct minstrel_rate_stats *mr) +minstrel_calc_rate_ewma(struct minstrel_rate_stats *mr) { if (unlikely(mr->attempts > 0)) { mr->sample_skipped = 0; @@ -156,8 +156,7 @@ minstrel_calc_rate_ewma(struct minstrel_priv *mp, struct minstrel_rate_stats *mr * the expected number of retransmissions and their expected length */ static void -minstrel_ht_calc_tp(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, - int group, int rate) +minstrel_ht_calc_tp(struct minstrel_ht_sta *mi, int group, int rate) { struct minstrel_rate_stats *mr; unsigned int usecs; @@ -226,8 +225,8 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) mr = &mg->rates[i]; mr->retry_updated = false; index = MCS_GROUP_RATES * group + i; - minstrel_calc_rate_ewma(mp, mr); - minstrel_ht_calc_tp(mp, mi, group, i); + minstrel_calc_rate_ewma(mr); + minstrel_ht_calc_tp(mi, group, i); if (!mr->cur_tp) continue; @@ -300,10 +299,10 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) static bool minstrel_ht_txstat_valid(struct ieee80211_tx_rate *rate) { - if (!rate->count) + if (rate->idx < 0) return false; - if (rate->idx < 0) + if (!rate->count) return false; return !!(rate->flags & IEEE80211_TX_RC_MCS); @@ -357,7 +356,7 @@ minstrel_downgrade_rate(struct minstrel_ht_sta *mi, unsigned int *idx, } static void -minstrel_aggr_check(struct minstrel_priv *mp, struct ieee80211_sta *pubsta, struct sk_buff *skb) +minstrel_aggr_check(struct ieee80211_sta *pubsta, struct sk_buff *skb) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; struct sta_info *sta = container_of(pubsta, struct sta_info, sta); @@ -455,7 +454,7 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, if (time_after(jiffies, mi->stats_update + (mp->update_interval / 2 * HZ) / 1000)) { minstrel_ht_update_stats(mp, mi); if (!(info->flags & IEEE80211_TX_CTL_AMPDU)) - minstrel_aggr_check(mp, sta, skb); + minstrel_aggr_check(sta, skb); } } @@ -515,7 +514,6 @@ minstrel_calc_retransmit(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, static void minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, struct ieee80211_tx_rate *rate, int index, - struct ieee80211_tx_rate_control *txrc, bool sample, bool rtscts) { const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; @@ -628,11 +626,11 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, if (sample_idx >= 0) { sample = true; minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx, - txrc, true, false); + true, false); info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; } else { minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate, - txrc, false, false); + false, false); } if (mp->hw->max_rates >= 3) { @@ -643,13 +641,13 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, */ if (sample_idx >= 0) minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate, - txrc, false, false); + false, false); else minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2, - txrc, false, true); + false, true); minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, - txrc, false, !sample); + false, !sample); ar[3].count = 0; ar[3].idx = -1; @@ -660,7 +658,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, * max_tp_rate -> max_prob_rate by default. */ minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_prob_rate, - txrc, false, !sample); + false, !sample); ar[2].count = 0; ar[2].idx = -1; diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index c5923ab8a070..6280e8bca49d 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -30,7 +30,6 @@ * when virtual port control is not in use. * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble * frames. - * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP. * @WLAN_STA_WME: Station is a QoS-STA. * @WLAN_STA_WDS: Station is one of our WDS peers. * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the @@ -60,7 +59,6 @@ enum ieee80211_sta_info_flags { WLAN_STA_PS_STA, WLAN_STA_AUTHORIZED, WLAN_STA_SHORT_PREAMBLE, - WLAN_STA_ASSOC_AP, WLAN_STA_WME, WLAN_STA_WDS, WLAN_STA_CLEAR_PS_FILT, diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index f044963feb9a..8d31933abe6a 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -36,7 +36,8 @@ /* misc utils */ -static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, +static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, + struct sk_buff *skb, int group_addr, int next_frag_len) { int rate, mrate, erp, dur, i; @@ -44,7 +45,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, struct ieee80211_local *local = tx->local; struct ieee80211_supported_band *sband; struct ieee80211_hdr *hdr; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); /* assume HW handles this */ if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS) @@ -76,7 +77,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, * at the highest possible rate belonging to the PHY rates in the * BSSBasicRateSet */ - hdr = (struct ieee80211_hdr *)tx->skb->data; + hdr = (struct ieee80211_hdr *)skb->data; if (ieee80211_is_ctl(hdr->frame_control)) { /* TODO: These control frames are not currently sent by * mac80211, but should they be implemented, this function @@ -572,8 +573,6 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) switch (tx->key->conf.cipher) { case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: - if (ieee80211_is_auth(hdr->frame_control)) - break; case WLAN_CIPHER_SUITE_TKIP: if (!ieee80211_is_data_present(hdr->frame_control)) tx->key = NULL; @@ -844,11 +843,13 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) return TX_CONTINUE; } -static int ieee80211_fragment(struct ieee80211_local *local, +static int ieee80211_fragment(struct ieee80211_tx_data *tx, struct sk_buff *skb, int hdrlen, int frag_threshold) { - struct sk_buff *tail = skb, *tmp; + struct ieee80211_local *local = tx->local; + struct ieee80211_tx_info *info; + struct sk_buff *tmp; int per_fragm = frag_threshold - hdrlen - FCS_LEN; int pos = hdrlen + per_fragm; int rem = skb->len - hdrlen - per_fragm; @@ -856,6 +857,8 @@ static int ieee80211_fragment(struct ieee80211_local *local, if (WARN_ON(rem < 0)) return -EINVAL; + /* first fragment was already added to queue by caller */ + while (rem) { int fraglen = per_fragm; @@ -868,12 +871,21 @@ static int ieee80211_fragment(struct ieee80211_local *local, IEEE80211_ENCRYPT_TAILROOM); if (!tmp) return -ENOMEM; - tail->next = tmp; - tail = tmp; + + __skb_queue_tail(&tx->skbs, tmp); + skb_reserve(tmp, local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM); /* copy control information */ memcpy(tmp->cb, skb->cb, sizeof(tmp->cb)); + + info = IEEE80211_SKB_CB(tmp); + info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT | + IEEE80211_TX_CTL_FIRST_FRAGMENT); + + if (rem) + info->flags |= IEEE80211_TX_CTL_MORE_FRAMES; + skb_copy_queue_mapping(tmp, skb); tmp->priority = skb->priority; tmp->dev = skb->dev; @@ -885,6 +897,7 @@ static int ieee80211_fragment(struct ieee80211_local *local, pos += fraglen; } + /* adjust first fragment's length */ skb->len = hdrlen + per_fragm; return 0; } @@ -899,6 +912,10 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) int hdrlen; int fragnum; + /* no matter what happens, tx->skb moves to tx->skbs */ + __skb_queue_tail(&tx->skbs, skb); + tx->skb = NULL; + if (info->flags & IEEE80211_TX_CTL_DONTFRAG) return TX_CONTINUE; @@ -927,21 +944,21 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) * of the fragments then we will simply pretend to accept the skb * but store it away as pending. */ - if (ieee80211_fragment(tx->local, skb, hdrlen, frag_threshold)) + if (ieee80211_fragment(tx, skb, hdrlen, frag_threshold)) return TX_DROP; /* update duration/seq/flags of fragments */ fragnum = 0; - do { + + skb_queue_walk(&tx->skbs, skb) { int next_len; const __le16 morefrags = cpu_to_le16(IEEE80211_FCTL_MOREFRAGS); hdr = (void *)skb->data; info = IEEE80211_SKB_CB(skb); - if (skb->next) { + if (!skb_queue_is_last(&tx->skbs, skb)) { hdr->frame_control |= morefrags; - next_len = skb->next->len; /* * No multi-rate retries for fragmented frames, that * would completely throw off the NAV at other STAs. @@ -956,10 +973,9 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) hdr->frame_control &= ~morefrags; next_len = 0; } - hdr->duration_id = ieee80211_duration(tx, 0, next_len); hdr->seq_ctrl |= cpu_to_le16(fragnum & IEEE80211_SCTL_FRAG); fragnum++; - } while ((skb = skb->next)); + } return TX_CONTINUE; } @@ -967,16 +983,16 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_stats(struct ieee80211_tx_data *tx) { - struct sk_buff *skb = tx->skb; + struct sk_buff *skb; if (!tx->sta) return TX_CONTINUE; tx->sta->tx_packets++; - do { + skb_queue_walk(&tx->skbs, skb) { tx->sta->tx_fragments++; tx->sta->tx_bytes += skb->len; - } while ((skb = skb->next)); + } return TX_CONTINUE; } @@ -1015,21 +1031,25 @@ ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx) { - struct sk_buff *skb = tx->skb; + struct sk_buff *skb; struct ieee80211_hdr *hdr; int next_len; bool group_addr; - do { + skb_queue_walk(&tx->skbs, skb) { hdr = (void *) skb->data; if (unlikely(ieee80211_is_pspoll(hdr->frame_control))) break; /* must not overwrite AID */ - next_len = skb->next ? skb->next->len : 0; + if (!skb_queue_is_last(&tx->skbs, skb)) { + struct sk_buff *next = skb_queue_next(&tx->skbs, skb); + next_len = next->len; + } else + next_len = 0; group_addr = is_multicast_ether_addr(hdr->addr1); hdr->duration_id = - ieee80211_duration(tx, group_addr, next_len); - } while ((skb = skb->next)); + ieee80211_duration(tx, skb, group_addr, next_len); + } return TX_CONTINUE; } @@ -1108,6 +1128,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, tx->local = local; tx->sdata = sdata; tx->channel = local->hw.conf.channel; + __skb_queue_head_init(&tx->skbs); /* * If this flag is set to true anywhere, and we get here, @@ -1180,22 +1201,18 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, return TX_CONTINUE; } -/* - * Returns false if the frame couldn't be transmitted but was queued instead. - */ -static bool __ieee80211_tx(struct ieee80211_local *local, struct sk_buff **skbp, - struct sta_info *sta, bool txpending) +static bool ieee80211_tx_frags(struct ieee80211_local *local, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct sk_buff_head *skbs, + bool txpending) { - struct sk_buff *skb = *skbp, *next; + struct sk_buff *skb, *tmp; struct ieee80211_tx_info *info; - struct ieee80211_sub_if_data *sdata; unsigned long flags; - int len; - bool fragm = false; - while (skb) { + skb_queue_walk_safe(skbs, skb, tmp) { int q = skb_get_queue_mapping(skb); - __le16 fc; spin_lock_irqsave(&local->queue_stop_reason_lock, flags); if (local->queue_stop_reasons[q] || @@ -1205,24 +1222,10 @@ static bool __ieee80211_tx(struct ieee80211_local *local, struct sk_buff **skbp, * transmission from the tx-pending tasklet when the * queue is woken again. */ - - do { - next = skb->next; - skb->next = NULL; - /* - * NB: If txpending is true, next must already - * be NULL since we must've gone through this - * loop before already; therefore we can just - * queue the frame to the head without worrying - * about reordering of fragments. - */ - if (unlikely(txpending)) - __skb_queue_head(&local->pending[q], - skb); - else - __skb_queue_tail(&local->pending[q], - skb); - } while ((skb = next)); + if (txpending) + skb_queue_splice(skbs, &local->pending[q]); + else + skb_queue_splice_tail(skbs, &local->pending[q]); spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); @@ -1231,47 +1234,72 @@ static bool __ieee80211_tx(struct ieee80211_local *local, struct sk_buff **skbp, spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); info = IEEE80211_SKB_CB(skb); + info->control.vif = vif; + info->control.sta = sta; - if (fragm) - info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT | - IEEE80211_TX_CTL_FIRST_FRAGMENT); - - next = skb->next; - len = skb->len; + __skb_unlink(skb, skbs); + drv_tx(local, skb); + } - if (next) - info->flags |= IEEE80211_TX_CTL_MORE_FRAMES; + return true; +} - sdata = vif_to_sdata(info->control.vif); +/* + * Returns false if the frame couldn't be transmitted but was queued instead. + */ +static bool __ieee80211_tx(struct ieee80211_local *local, + struct sk_buff_head *skbs, int led_len, + struct sta_info *sta, bool txpending) +{ + struct ieee80211_tx_info *info; + struct ieee80211_sub_if_data *sdata; + struct ieee80211_vif *vif; + struct ieee80211_sta *pubsta; + struct sk_buff *skb; + bool result = true; + __le16 fc; - switch (sdata->vif.type) { - case NL80211_IFTYPE_MONITOR: - info->control.vif = NULL; - break; - case NL80211_IFTYPE_AP_VLAN: - info->control.vif = &container_of(sdata->bss, - struct ieee80211_sub_if_data, u.ap)->vif; - break; - default: - /* keep */ - break; - } + if (WARN_ON(skb_queue_empty(skbs))) + return true; - if (sta && sta->uploaded) - info->control.sta = &sta->sta; - else - info->control.sta = NULL; + skb = skb_peek(skbs); + fc = ((struct ieee80211_hdr *)skb->data)->frame_control; + info = IEEE80211_SKB_CB(skb); + sdata = vif_to_sdata(info->control.vif); + if (sta && !sta->uploaded) + sta = NULL; - fc = ((struct ieee80211_hdr *)skb->data)->frame_control; - drv_tx(local, skb); + if (sta) + pubsta = &sta->sta; + else + pubsta = NULL; - ieee80211_tpt_led_trig_tx(local, fc, len); - *skbp = skb = next; - ieee80211_led_tx(local, 1); - fragm = true; + switch (sdata->vif.type) { + case NL80211_IFTYPE_MONITOR: + sdata = NULL; + vif = NULL; + break; + case NL80211_IFTYPE_AP_VLAN: + sdata = container_of(sdata->bss, + struct ieee80211_sub_if_data, u.ap); + /* fall through */ + default: + vif = &sdata->vif; + break; } - return true; + if (local->ops->tx_frags) + drv_tx_frags(local, vif, pubsta, skbs); + else + result = ieee80211_tx_frags(local, vif, pubsta, skbs, + txpending); + + ieee80211_tpt_led_trig_tx(local, fc, led_len); + ieee80211_led_tx(local, 1); + + WARN_ON(!skb_queue_empty(skbs)); + + return result; } /* @@ -1280,8 +1308,7 @@ static bool __ieee80211_tx(struct ieee80211_local *local, struct sk_buff **skbp, */ static int invoke_tx_handlers(struct ieee80211_tx_data *tx) { - struct sk_buff *skb = tx->skb; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); ieee80211_tx_result res = TX_DROP; #define CALL_TXH(txh) \ @@ -1315,13 +1342,10 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx) txh_done: if (unlikely(res == TX_DROP)) { I802_DEBUG_INC(tx->local->tx_handlers_drop); - while (skb) { - struct sk_buff *next; - - next = skb->next; - dev_kfree_skb(skb); - skb = next; - } + if (tx->skb) + dev_kfree_skb(tx->skb); + else + __skb_queue_purge(&tx->skbs); return -1; } else if (unlikely(res == TX_QUEUED)) { I802_DEBUG_INC(tx->local->tx_handlers_queued); @@ -1342,6 +1366,7 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, ieee80211_tx_result res_prepare; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); bool result = true; + int led_len; if (unlikely(skb->len < 10)) { dev_kfree_skb(skb); @@ -1351,6 +1376,7 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, rcu_read_lock(); /* initialises tx */ + led_len = skb->len; res_prepare = ieee80211_tx_prepare(sdata, &tx, skb); if (unlikely(res_prepare == TX_DROP)) { @@ -1364,7 +1390,8 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, info->band = tx.channel->band; if (!invoke_tx_handlers(&tx)) - result = __ieee80211_tx(local, &tx.skb, tx.sta, txpending); + result = __ieee80211_tx(local, &tx.skbs, led_len, + tx.sta, txpending); out: rcu_read_unlock(); return result; @@ -2112,10 +2139,15 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local, if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) { result = ieee80211_tx(sdata, skb, true); } else { + struct sk_buff_head skbs; + + __skb_queue_head_init(&skbs); + __skb_queue_tail(&skbs, skb); + hdr = (struct ieee80211_hdr *)skb->data; sta = sta_info_get(sdata, hdr->addr1); - result = __ieee80211_tx(local, &skb, sta, true); + result = __ieee80211_tx(local, &skbs, skb->len, sta, true); } return result; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 3a00814699f0..3b9b492e9403 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -20,6 +20,7 @@ #include <linux/etherdevice.h> #include <linux/if_arp.h> #include <linux/bitmap.h> +#include <linux/crc32.h> #include <net/net_namespace.h> #include <net/cfg80211.h> #include <net/rtnetlink.h> @@ -96,13 +97,13 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) { - struct sk_buff *skb = tx->skb; + struct sk_buff *skb; struct ieee80211_hdr *hdr; - do { + skb_queue_walk(&tx->skbs, skb) { hdr = (struct ieee80211_hdr *) skb->data; hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - } while ((skb = skb->next)); + } } int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, @@ -564,6 +565,172 @@ void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, } EXPORT_SYMBOL(ieee80211_queue_delayed_work); +u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, + struct ieee802_11_elems *elems, + u64 filter, u32 crc) +{ + size_t left = len; + u8 *pos = start; + bool calc_crc = filter != 0; + + memset(elems, 0, sizeof(*elems)); + elems->ie_start = start; + elems->total_len = len; + + while (left >= 2) { + u8 id, elen; + + id = *pos++; + elen = *pos++; + left -= 2; + + if (elen > left) + break; + + if (calc_crc && id < 64 && (filter & (1ULL << id))) + crc = crc32_be(crc, pos - 2, elen + 2); + + switch (id) { + case WLAN_EID_SSID: + elems->ssid = pos; + elems->ssid_len = elen; + break; + case WLAN_EID_SUPP_RATES: + elems->supp_rates = pos; + elems->supp_rates_len = elen; + break; + case WLAN_EID_FH_PARAMS: + elems->fh_params = pos; + elems->fh_params_len = elen; + break; + case WLAN_EID_DS_PARAMS: + elems->ds_params = pos; + elems->ds_params_len = elen; + break; + case WLAN_EID_CF_PARAMS: + elems->cf_params = pos; + elems->cf_params_len = elen; + break; + case WLAN_EID_TIM: + if (elen >= sizeof(struct ieee80211_tim_ie)) { + elems->tim = (void *)pos; + elems->tim_len = elen; + } + break; + case WLAN_EID_IBSS_PARAMS: + elems->ibss_params = pos; + elems->ibss_params_len = elen; + break; + case WLAN_EID_CHALLENGE: + elems->challenge = pos; + elems->challenge_len = elen; + break; + case WLAN_EID_VENDOR_SPECIFIC: + if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && + pos[2] == 0xf2) { + /* Microsoft OUI (00:50:F2) */ + + if (calc_crc) + crc = crc32_be(crc, pos - 2, elen + 2); + + if (pos[3] == 1) { + /* OUI Type 1 - WPA IE */ + elems->wpa = pos; + elems->wpa_len = elen; + } else if (elen >= 5 && pos[3] == 2) { + /* OUI Type 2 - WMM IE */ + if (pos[4] == 0) { + elems->wmm_info = pos; + elems->wmm_info_len = elen; + } else if (pos[4] == 1) { + elems->wmm_param = pos; + elems->wmm_param_len = elen; + } + } + } + break; + case WLAN_EID_RSN: + elems->rsn = pos; + elems->rsn_len = elen; + break; + case WLAN_EID_ERP_INFO: + elems->erp_info = pos; + elems->erp_info_len = elen; + break; + case WLAN_EID_EXT_SUPP_RATES: + elems->ext_supp_rates = pos; + elems->ext_supp_rates_len = elen; + break; + case WLAN_EID_HT_CAPABILITY: + if (elen >= sizeof(struct ieee80211_ht_cap)) + elems->ht_cap_elem = (void *)pos; + break; + case WLAN_EID_HT_INFORMATION: + if (elen >= sizeof(struct ieee80211_ht_info)) + elems->ht_info_elem = (void *)pos; + break; + case WLAN_EID_MESH_ID: + elems->mesh_id = pos; + elems->mesh_id_len = elen; + break; + case WLAN_EID_MESH_CONFIG: + if (elen >= sizeof(struct ieee80211_meshconf_ie)) + elems->mesh_config = (void *)pos; + break; + case WLAN_EID_PEER_MGMT: + elems->peering = pos; + elems->peering_len = elen; + break; + case WLAN_EID_PREQ: + elems->preq = pos; + elems->preq_len = elen; + break; + case WLAN_EID_PREP: + elems->prep = pos; + elems->prep_len = elen; + break; + case WLAN_EID_PERR: + elems->perr = pos; + elems->perr_len = elen; + break; + case WLAN_EID_RANN: + if (elen >= sizeof(struct ieee80211_rann_ie)) + elems->rann = (void *)pos; + break; + case WLAN_EID_CHANNEL_SWITCH: + elems->ch_switch_elem = pos; + elems->ch_switch_elem_len = elen; + break; + case WLAN_EID_QUIET: + if (!elems->quiet_elem) { + elems->quiet_elem = pos; + elems->quiet_elem_len = elen; + } + elems->num_of_quiet_elem++; + break; + case WLAN_EID_COUNTRY: + elems->country_elem = pos; + elems->country_elem_len = elen; + break; + case WLAN_EID_PWR_CONSTRAINT: + elems->pwr_constr_elem = pos; + elems->pwr_constr_elem_len = elen; + break; + case WLAN_EID_TIMEOUT_INTERVAL: + elems->timeout_int = pos; + elems->timeout_int_len = elen; + break; + default: + break; + } + + left -= elen; + pos += elen; + } + + return crc; +} + void ieee802_11_parse_elems(u8 *start, size_t len, struct ieee802_11_elems *elems) { @@ -813,7 +980,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, } if (sband->ht_cap.ht_supported) - pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap); + pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, + sband->ht_cap.cap); /* * If adding more here, adjust code in main.c @@ -1356,7 +1524,7 @@ void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) } EXPORT_SYMBOL(ieee80211_disable_rssi_reports); -u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband, +u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, u16 cap) { __le16 tmp; @@ -1371,13 +1539,13 @@ u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband, pos += sizeof(u16); /* AMPDU parameters */ - *pos++ = sband->ht_cap.ampdu_factor | - (sband->ht_cap.ampdu_density << + *pos++ = ht_cap->ampdu_factor | + (ht_cap->ampdu_density << IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); /* MCS set */ - memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs)); - pos += sizeof(sband->ht_cap.mcs); + memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); + pos += sizeof(ht_cap->mcs); /* extended capabilities */ pos += sizeof(__le16); diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index a1c6bfd55f0f..68ad351479df 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -330,13 +330,12 @@ ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx) ieee80211_tx_set_protected(tx); - skb = tx->skb; - do { + skb_queue_walk(&tx->skbs, skb) { if (wep_encrypt_skb(tx, skb) < 0) { I802_DEBUG_INC(tx->local->tx_handlers_drop_wep); return TX_DROP; } - } while ((skb = skb->next)); + } return TX_CONTINUE; } diff --git a/net/mac80211/work.c b/net/mac80211/work.c index 3dd5a89e99a7..6884a2d986dc 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -94,7 +94,8 @@ static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len, /* frame sending functions */ -static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie, +static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, const u8 *ht_info_ie, struct ieee80211_supported_band *sband, struct ieee80211_channel *channel, enum ieee80211_smps_mode smps) @@ -102,7 +103,10 @@ static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie, struct ieee80211_ht_info *ht_info; u8 *pos; u32 flags = channel->flags; - u16 cap = sband->ht_cap.cap; + u16 cap; + struct ieee80211_sta_ht_cap ht_cap; + + BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); if (!sband->ht_cap.ht_supported) return; @@ -113,9 +117,13 @@ static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie, if (ht_info_ie[1] < sizeof(struct ieee80211_ht_info)) return; + memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); + ieee80211_apply_htcap_overrides(sdata, &ht_cap); + ht_info = (struct ieee80211_ht_info *)(ht_info_ie + 2); /* determine capability flags */ + cap = ht_cap.cap; switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: @@ -154,7 +162,7 @@ static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie, /* reserve and fill IE */ pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2); - ieee80211_ie_build_ht_cap(pos, sband, cap); + ieee80211_ie_build_ht_cap(pos, &ht_cap, cap); } static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, @@ -329,7 +337,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, if (wk->assoc.use_11n && wk->assoc.wmm_used && local->hw.queues >= 4) - ieee80211_add_ht_ie(skb, wk->assoc.ht_information_ie, + ieee80211_add_ht_ie(sdata, skb, wk->assoc.ht_information_ie, sband, wk->chan, wk->assoc.smps); /* if present, add any custom non-vendor IEs that go after HT */ diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 106e15a4649f..93aab0715e8a 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -223,14 +223,14 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) ieee80211_tx_result ieee80211_crypto_tkip_encrypt(struct ieee80211_tx_data *tx) { - struct sk_buff *skb = tx->skb; + struct sk_buff *skb; ieee80211_tx_set_protected(tx); - do { + skb_queue_walk(&tx->skbs, skb) { if (tkip_encrypt_skb(tx, skb) < 0) return TX_DROP; - } while ((skb = skb->next)); + } return TX_CONTINUE; } @@ -449,14 +449,14 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) ieee80211_tx_result ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx) { - struct sk_buff *skb = tx->skb; + struct sk_buff *skb; ieee80211_tx_set_protected(tx); - do { + skb_queue_walk(&tx->skbs, skb) { if (ccmp_encrypt_skb(tx, skb) < 0) return TX_DROP; - } while ((skb = skb->next)); + } return TX_CONTINUE; } @@ -554,15 +554,22 @@ static inline void bip_ipn_swap(u8 *d, const u8 *s) ieee80211_tx_result ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx) { - struct sk_buff *skb = tx->skb; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct sk_buff *skb; + struct ieee80211_tx_info *info; struct ieee80211_key *key = tx->key; struct ieee80211_mmie *mmie; u8 aad[20]; u64 pn64; + if (WARN_ON(skb_queue_len(&tx->skbs) != 1)) + return TX_DROP; + + skb = skb_peek(&tx->skbs); + + info = IEEE80211_SKB_CB(skb); + if (info->control.hw_key) - return 0; + return TX_CONTINUE; if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie))) return TX_DROP; diff --git a/net/wireless/core.h b/net/wireless/core.h index 1c7d4df5418c..fb08c28fc90a 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -341,13 +341,17 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, const u8 *bssid, const u8 *prev_bssid, const u8 *ssid, int ssid_len, const u8 *ie, int ie_len, bool use_mfp, - struct cfg80211_crypto_settings *crypt); + struct cfg80211_crypto_settings *crypt, + u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, + struct ieee80211_ht_cap *ht_capa_mask); int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, struct net_device *dev, struct ieee80211_channel *chan, const u8 *bssid, const u8 *prev_bssid, const u8 *ssid, int ssid_len, const u8 *ie, int ie_len, bool use_mfp, - struct cfg80211_crypto_settings *crypt); + struct cfg80211_crypto_settings *crypt, + u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, + struct ieee80211_ht_cap *ht_capa_mask); int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, struct net_device *dev, const u8 *bssid, const u8 *ie, int ie_len, u16 reason, @@ -379,6 +383,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, bool channel_type_valid, unsigned int wait, const u8 *buf, size_t len, bool no_cck, bool dont_wait_for_ack, u64 *cookie); +void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa, + const struct ieee80211_ht_cap *ht_capa_mask); /* SME */ int __cfg80211_connect(struct cfg80211_registered_device *rdev, diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 6c1bafd508c8..438dfc105b4a 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -501,13 +501,32 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, return err; } +/* Do a logical ht_capa &= ht_capa_mask. */ +void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa, + const struct ieee80211_ht_cap *ht_capa_mask) +{ + int i; + u8 *p1, *p2; + if (!ht_capa_mask) { + memset(ht_capa, 0, sizeof(*ht_capa)); + return; + } + + p1 = (u8*)(ht_capa); + p2 = (u8*)(ht_capa_mask); + for (i = 0; i<sizeof(*ht_capa); i++) + p1[i] &= p2[i]; +} + int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, struct net_device *dev, struct ieee80211_channel *chan, const u8 *bssid, const u8 *prev_bssid, const u8 *ssid, int ssid_len, const u8 *ie, int ie_len, bool use_mfp, - struct cfg80211_crypto_settings *crypt) + struct cfg80211_crypto_settings *crypt, + u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, + struct ieee80211_ht_cap *ht_capa_mask) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_assoc_request req; @@ -537,6 +556,15 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, memcpy(&req.crypto, crypt, sizeof(req.crypto)); req.use_mfp = use_mfp; req.prev_bssid = prev_bssid; + req.flags = assoc_flags; + if (ht_capa) + memcpy(&req.ht_capa, ht_capa, sizeof(req.ht_capa)); + if (ht_capa_mask) + memcpy(&req.ht_capa_mask, ht_capa_mask, + sizeof(req.ht_capa_mask)); + cfg80211_oper_and_ht_capa(&req.ht_capa_mask, + rdev->wiphy.ht_capa_mod_mask); + req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); if (!req.bss) { @@ -574,14 +602,17 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, const u8 *bssid, const u8 *prev_bssid, const u8 *ssid, int ssid_len, const u8 *ie, int ie_len, bool use_mfp, - struct cfg80211_crypto_settings *crypt) + struct cfg80211_crypto_settings *crypt, + u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, + struct ieee80211_ht_cap *ht_capa_mask) { struct wireless_dev *wdev = dev->ieee80211_ptr; int err; wdev_lock(wdev); err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, - ssid, ssid_len, ie, ie_len, use_mfp, crypt); + ssid, ssid_len, ie, ie_len, use_mfp, crypt, + assoc_flags, ht_capa, ht_capa_mask); wdev_unlock(wdev); return err; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 6bc7c4b32fa5..a1cabde7cb5f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -199,6 +199,11 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, .len = IEEE80211_MAX_DATA_LEN }, + [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, + [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, + [NL80211_ATTR_HT_CAPABILITY_MASK] = { + .len = NL80211_HT_CAPABILITY_LEN + }, }; /* policy for the key attributes */ @@ -881,7 +886,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, CMD(set_pmksa, SET_PMKSA); CMD(del_pmksa, DEL_PMKSA); CMD(flush_pmksa, FLUSH_PMKSA); - CMD(remain_on_channel, REMAIN_ON_CHANNEL); + if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) + CMD(remain_on_channel, REMAIN_ON_CHANNEL); CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); CMD(mgmt_tx, FRAME); CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); @@ -903,6 +909,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS); } +#ifdef CONFIG_NL80211_TESTMODE + CMD(testmode_cmd, TESTMODE); +#endif + #undef CMD if (dev->ops->connect || dev->ops->auth) { @@ -917,11 +927,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, nla_nest_end(msg, nl_cmds); - if (dev->ops->remain_on_channel) + if (dev->ops->remain_on_channel && + dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, dev->wiphy.max_remain_on_channel_duration); - if (dev->ops->mgmt_tx_cancel_wait) + if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); if (mgmt_stypes) { @@ -1025,6 +1036,11 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features); + if (dev->wiphy.ht_capa_mod_mask) + NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, + sizeof(*dev->wiphy.ht_capa_mod_mask), + dev->wiphy.ht_capa_mod_mask); + return genlmsg_end(msg, hdr); nla_put_failure: @@ -2478,26 +2494,34 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) /* * Get vlan interface making sure it is running and on the right wiphy. */ -static int get_vlan(struct genl_info *info, - struct cfg80211_registered_device *rdev, - struct net_device **vlan) +static struct net_device *get_vlan(struct genl_info *info, + struct cfg80211_registered_device *rdev) { struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; - *vlan = NULL; - - if (vlanattr) { - *vlan = dev_get_by_index(genl_info_net(info), - nla_get_u32(vlanattr)); - if (!*vlan) - return -ENODEV; - if (!(*vlan)->ieee80211_ptr) - return -EINVAL; - if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) - return -EINVAL; - if (!netif_running(*vlan)) - return -ENETDOWN; + struct net_device *v; + int ret; + + if (!vlanattr) + return NULL; + + v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); + if (!v) + return ERR_PTR(-ENODEV); + + if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { + ret = -EINVAL; + goto error; } - return 0; + + if (!netif_running(v)) { + ret = -ENETDOWN; + goto error; + } + + return v; + error: + dev_put(v); + return ERR_PTR(ret); } static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) @@ -2547,9 +2571,9 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) params.plink_state = nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); - err = get_vlan(info, rdev, ¶ms.vlan); - if (err) - goto out; + params.vlan = get_vlan(info, rdev); + if (IS_ERR(params.vlan)) + return PTR_ERR(params.vlan); /* validate settings */ err = 0; @@ -2717,9 +2741,9 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))) return -EINVAL; - err = get_vlan(info, rdev, ¶ms.vlan); - if (err) - goto out; + params.vlan = get_vlan(info, rdev); + if (IS_ERR(params.vlan)) + return PTR_ERR(params.vlan); /* validate settings */ err = 0; @@ -3382,6 +3406,9 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, cfg80211_regdomain->alpha2); + if (cfg80211_regdomain->dfs_region) + NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION, + cfg80211_regdomain->dfs_region); nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); if (!nl_reg_rules) @@ -3440,6 +3467,7 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) char *alpha2 = NULL; int rem_reg_rules = 0, r = 0; u32 num_rules = 0, rule_idx = 0, size_of_regd; + u8 dfs_region = 0; struct ieee80211_regdomain *rd = NULL; if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) @@ -3450,6 +3478,9 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); + if (info->attrs[NL80211_ATTR_DFS_REGION]) + dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); + nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], rem_reg_rules) { num_rules++; @@ -3477,6 +3508,13 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) rd->alpha2[0] = alpha2[0]; rd->alpha2[1] = alpha2[1]; + /* + * Disable DFS master mode if the DFS region was + * not supported or known on this kernel. + */ + if (reg_supported_dfs_region(dfs_region)) + rd->dfs_region = dfs_region; + nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], rem_reg_rules) { nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, @@ -4384,6 +4422,9 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; int err, ssid_len, ie_len = 0; bool use_mfp = false; + u32 flags = 0; + struct ieee80211_ht_cap *ht_capa = NULL; + struct ieee80211_ht_cap *ht_capa_mask = NULL; if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) return -EINVAL; @@ -4427,11 +4468,25 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_PREV_BSSID]) prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); + if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) + flags |= ASSOC_REQ_DISABLE_HT; + + if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) + ht_capa_mask = + nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]); + + if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { + if (!ht_capa_mask) + return -EINVAL; + ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); + } + err = nl80211_crypto_settings(rdev, info, &crypto, 1); if (!err) err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, ssid, ssid_len, ie, ie_len, use_mfp, - &crypto); + &crypto, flags, ht_capa, + ht_capa_mask); return err; } @@ -4921,6 +4976,22 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) return PTR_ERR(connkeys); } + if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) + connect.flags |= ASSOC_REQ_DISABLE_HT; + + if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) + memcpy(&connect.ht_capa_mask, + nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), + sizeof(connect.ht_capa_mask)); + + if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { + if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) + return -EINVAL; + memcpy(&connect.ht_capa, + nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), + sizeof(connect.ht_capa)); + } + err = cfg80211_connect(rdev, dev, &connect, connkeys); if (err) kfree(connkeys); @@ -5108,7 +5179,8 @@ static int nl80211_remain_on_channel(struct sk_buff *skb, duration > rdev->wiphy.max_remain_on_channel_duration) return -EINVAL; - if (!rdev->ops->remain_on_channel) + if (!rdev->ops->remain_on_channel || + !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) return -EOPNOTSUPP; if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { @@ -5321,7 +5393,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) return -EOPNOTSUPP; if (info->attrs[NL80211_ATTR_DURATION]) { - if (!rdev->ops->mgmt_tx_cancel_wait) + if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) return -EINVAL; wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); } @@ -5339,6 +5411,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; + if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) + return -EINVAL; + no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 77e926738014..76b35df39623 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1123,6 +1123,8 @@ static void wiphy_update_regulatory(struct wiphy *wiphy, if (ignore_reg_update(wiphy, initiator)) return; + last_request->dfs_region = cfg80211_regdomain->dfs_region; + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { if (wiphy->bands[band]) handle_band(wiphy, band, initiator); @@ -1948,6 +1950,42 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd) } } +bool reg_supported_dfs_region(u8 dfs_region) +{ + switch (dfs_region) { + case NL80211_DFS_UNSET: + case NL80211_DFS_FCC: + case NL80211_DFS_ETSI: + case NL80211_DFS_JP: + return true; + default: + REG_DBG_PRINT("Ignoring uknown DFS master region: %d\n", + dfs_region); + return false; + } +} + +static void print_dfs_region(u8 dfs_region) +{ + if (!dfs_region) + return; + + switch (dfs_region) { + case NL80211_DFS_FCC: + pr_info(" DFS Master region FCC"); + break; + case NL80211_DFS_ETSI: + pr_info(" DFS Master region ETSI"); + break; + case NL80211_DFS_JP: + pr_info(" DFS Master region JP"); + break; + default: + pr_info(" DFS Master region Uknown"); + break; + } +} + static void print_regdomain(const struct ieee80211_regdomain *rd) { @@ -1975,6 +2013,7 @@ static void print_regdomain(const struct ieee80211_regdomain *rd) pr_info("Regulatory domain changed to country: %c%c\n", rd->alpha2[0], rd->alpha2[1]); } + print_dfs_region(rd->dfs_region); print_rd_rules(rd); } diff --git a/net/wireless/reg.h b/net/wireless/reg.h index 4a56799d868d..786e414afd91 100644 --- a/net/wireless/reg.h +++ b/net/wireless/reg.h @@ -5,6 +5,7 @@ extern const struct ieee80211_regdomain *cfg80211_regdomain; bool is_world_regdom(const char *alpha2); bool reg_is_valid_request(const char *alpha2); +bool reg_supported_dfs_region(u8 dfs_region); int regulatory_hint_user(const char *alpha2); diff --git a/net/wireless/sme.c b/net/wireless/sme.c index 0acfdc9beacf..f0c900ce2fb9 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -190,7 +190,9 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev) prev_bssid, params->ssid, params->ssid_len, params->ie, params->ie_len, - false, ¶ms->crypto); + false, ¶ms->crypto, + params->flags, ¶ms->ht_capa, + ¶ms->ht_capa_mask); if (err) __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, NULL, 0, @@ -774,6 +776,9 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev, wdev->connect_keys = NULL; } + cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, + rdev->wiphy.ht_capa_mod_mask); + if (connkeys && connkeys->def >= 0) { int idx; u32 cipher; diff --git a/net/wireless/util.c b/net/wireless/util.c index 4dde429441d2..9c601d59b77a 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -7,7 +7,6 @@ #include <linux/bitops.h> #include <linux/etherdevice.h> #include <linux/slab.h> -#include <linux/crc32.h> #include <net/cfg80211.h> #include <net/ip.h> #include "core.h" @@ -240,17 +239,6 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, return 0; } -/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ -/* Ethernet-II snap header (RFC1042 for most EtherTypes) */ -const unsigned char rfc1042_header[] __aligned(2) = - { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; -EXPORT_SYMBOL(rfc1042_header); - -/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ -const unsigned char bridge_tunnel_header[] __aligned(2) = - { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; -EXPORT_SYMBOL(bridge_tunnel_header); - unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc) { unsigned int hdrlen = 24; @@ -1051,169 +1039,13 @@ int ieee80211_get_ratemask(struct ieee80211_supported_band *sband, return 0; } -u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, - struct ieee802_11_elems *elems, - u64 filter, u32 crc) -{ - size_t left = len; - u8 *pos = start; - bool calc_crc = filter != 0; - - memset(elems, 0, sizeof(*elems)); - elems->ie_start = start; - elems->total_len = len; - - while (left >= 2) { - u8 id, elen; - - id = *pos++; - elen = *pos++; - left -= 2; - - if (elen > left) - break; - - if (calc_crc && id < 64 && (filter & (1ULL << id))) - crc = crc32_be(crc, pos - 2, elen + 2); - - switch (id) { - case WLAN_EID_SSID: - elems->ssid = pos; - elems->ssid_len = elen; - break; - case WLAN_EID_SUPP_RATES: - elems->supp_rates = pos; - elems->supp_rates_len = elen; - break; - case WLAN_EID_FH_PARAMS: - elems->fh_params = pos; - elems->fh_params_len = elen; - break; - case WLAN_EID_DS_PARAMS: - elems->ds_params = pos; - elems->ds_params_len = elen; - break; - case WLAN_EID_CF_PARAMS: - elems->cf_params = pos; - elems->cf_params_len = elen; - break; - case WLAN_EID_TIM: - if (elen >= sizeof(struct ieee80211_tim_ie)) { - elems->tim = (void *)pos; - elems->tim_len = elen; - } - break; - case WLAN_EID_IBSS_PARAMS: - elems->ibss_params = pos; - elems->ibss_params_len = elen; - break; - case WLAN_EID_CHALLENGE: - elems->challenge = pos; - elems->challenge_len = elen; - break; - case WLAN_EID_VENDOR_SPECIFIC: - if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && - pos[2] == 0xf2) { - /* Microsoft OUI (00:50:F2) */ - - if (calc_crc) - crc = crc32_be(crc, pos - 2, elen + 2); - - if (pos[3] == 1) { - /* OUI Type 1 - WPA IE */ - elems->wpa = pos; - elems->wpa_len = elen; - } else if (elen >= 5 && pos[3] == 2) { - /* OUI Type 2 - WMM IE */ - if (pos[4] == 0) { - elems->wmm_info = pos; - elems->wmm_info_len = elen; - } else if (pos[4] == 1) { - elems->wmm_param = pos; - elems->wmm_param_len = elen; - } - } - } - break; - case WLAN_EID_RSN: - elems->rsn = pos; - elems->rsn_len = elen; - break; - case WLAN_EID_ERP_INFO: - elems->erp_info = pos; - elems->erp_info_len = elen; - break; - case WLAN_EID_EXT_SUPP_RATES: - elems->ext_supp_rates = pos; - elems->ext_supp_rates_len = elen; - break; - case WLAN_EID_HT_CAPABILITY: - if (elen >= sizeof(struct ieee80211_ht_cap)) - elems->ht_cap_elem = (void *)pos; - break; - case WLAN_EID_HT_INFORMATION: - if (elen >= sizeof(struct ieee80211_ht_info)) - elems->ht_info_elem = (void *)pos; - break; - case WLAN_EID_MESH_ID: - elems->mesh_id = pos; - elems->mesh_id_len = elen; - break; - case WLAN_EID_MESH_CONFIG: - if (elen >= sizeof(struct ieee80211_meshconf_ie)) - elems->mesh_config = (void *)pos; - break; - case WLAN_EID_PEER_MGMT: - elems->peering = pos; - elems->peering_len = elen; - break; - case WLAN_EID_PREQ: - elems->preq = pos; - elems->preq_len = elen; - break; - case WLAN_EID_PREP: - elems->prep = pos; - elems->prep_len = elen; - break; - case WLAN_EID_PERR: - elems->perr = pos; - elems->perr_len = elen; - break; - case WLAN_EID_RANN: - if (elen >= sizeof(struct ieee80211_rann_ie)) - elems->rann = (void *)pos; - break; - case WLAN_EID_CHANNEL_SWITCH: - elems->ch_switch_elem = pos; - elems->ch_switch_elem_len = elen; - break; - case WLAN_EID_QUIET: - if (!elems->quiet_elem) { - elems->quiet_elem = pos; - elems->quiet_elem_len = elen; - } - elems->num_of_quiet_elem++; - break; - case WLAN_EID_COUNTRY: - elems->country_elem = pos; - elems->country_elem_len = elen; - break; - case WLAN_EID_PWR_CONSTRAINT: - elems->pwr_constr_elem = pos; - elems->pwr_constr_elem_len = elen; - break; - case WLAN_EID_TIMEOUT_INTERVAL: - elems->timeout_int = pos; - elems->timeout_int_len = elen; - break; - default: - break; - } - - left -= elen; - pos += elen; - } +/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ +/* Ethernet-II snap header (RFC1042 for most EtherTypes) */ +const unsigned char rfc1042_header[] __aligned(2) = + { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; +EXPORT_SYMBOL(rfc1042_header); - return crc; -} -EXPORT_SYMBOL(ieee802_11_parse_elems_crc); +/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ +const unsigned char bridge_tunnel_header[] __aligned(2) = + { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; +EXPORT_SYMBOL(bridge_tunnel_header); |