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path: root/drivers/net/wireless/iwlwifi/iwl-core.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.c166
1 files changed, 37 insertions, 129 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index efbde1f1a8bf..6c30fa652e27 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -43,11 +43,6 @@
#include "iwl-helpers.h"
-MODULE_DESCRIPTION("iwl core");
-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
@@ -65,15 +60,12 @@ MODULE_LICENSE("GPL");
* default: bt_coex_active = true (BT_COEX_ENABLE)
*/
bool bt_coex_active = true;
-EXPORT_SYMBOL_GPL(bt_coex_active);
module_param(bt_coex_active, bool, S_IRUGO);
MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist");
u32 iwl_debug_level;
-EXPORT_SYMBOL(iwl_debug_level);
const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-EXPORT_SYMBOL(iwl_bcast_addr);
/* This function both allocates and initializes hw and priv. */
@@ -98,7 +90,6 @@ struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg)
out:
return hw;
}
-EXPORT_SYMBOL(iwl_alloc_all);
#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
@@ -219,15 +210,12 @@ int iwlcore_init_geos(struct iwl_priv *priv)
if (!is_channel_valid(ch))
continue;
- if (is_channel_a_band(ch))
- sband = &priv->bands[IEEE80211_BAND_5GHZ];
- else
- sband = &priv->bands[IEEE80211_BAND_2GHZ];
+ sband = &priv->bands[ch->band];
geo_ch = &sband->channels[sband->n_channels++];
geo_ch->center_freq =
- ieee80211_channel_to_frequency(ch->channel);
+ 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;
@@ -275,7 +263,6 @@ int iwlcore_init_geos(struct iwl_priv *priv)
return 0;
}
-EXPORT_SYMBOL(iwlcore_init_geos);
/*
* iwlcore_free_geos - undo allocations in iwlcore_init_geos
@@ -286,7 +273,6 @@ void iwlcore_free_geos(struct iwl_priv *priv)
kfree(priv->ieee_rates);
clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
}
-EXPORT_SYMBOL(iwlcore_free_geos);
static bool iwl_is_channel_extension(struct iwl_priv *priv,
enum ieee80211_band band,
@@ -331,7 +317,6 @@ bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
le16_to_cpu(ctx->staging.channel),
ctx->ht.extension_chan_offset);
}
-EXPORT_SYMBOL(iwl_is_ht40_tx_allowed);
static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
{
@@ -432,7 +417,6 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
return iwl_send_cmd_pdu(priv, ctx->rxon_timing_cmd,
sizeof(ctx->timing), &ctx->timing);
}
-EXPORT_SYMBOL(iwl_send_rxon_timing);
void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
int hw_decrypt)
@@ -445,7 +429,6 @@ void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
}
-EXPORT_SYMBOL(iwl_set_rxon_hwcrypto);
/* validate RXON structure is valid */
int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
@@ -518,7 +501,6 @@ int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
}
return 0;
}
-EXPORT_SYMBOL(iwl_check_rxon_cmd);
/**
* iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
@@ -582,7 +564,6 @@ int iwl_full_rxon_required(struct iwl_priv *priv,
return 0;
}
-EXPORT_SYMBOL(iwl_full_rxon_required);
u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
@@ -596,7 +577,6 @@ u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
else
return IWL_RATE_6M_PLCP;
}
-EXPORT_SYMBOL(iwl_rate_get_lowest_plcp);
static void _iwl_set_rxon_ht(struct iwl_priv *priv,
struct iwl_ht_config *ht_conf,
@@ -673,7 +653,6 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
for_each_context(priv, ctx)
_iwl_set_rxon_ht(priv, ht_conf, ctx);
}
-EXPORT_SYMBOL(iwl_set_rxon_ht);
/* Return valid, unused, channel for a passive scan to reset the RF */
u8 iwl_get_single_channel_number(struct iwl_priv *priv,
@@ -714,7 +693,6 @@ u8 iwl_get_single_channel_number(struct iwl_priv *priv,
return channel;
}
-EXPORT_SYMBOL(iwl_get_single_channel_number);
/**
* iwl_set_rxon_channel - Set the band and channel values in staging RXON
@@ -745,7 +723,6 @@ int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
return 0;
}
-EXPORT_SYMBOL(iwl_set_rxon_channel);
void iwl_set_flags_for_band(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
@@ -769,7 +746,6 @@ void iwl_set_flags_for_band(struct iwl_priv *priv,
ctx->staging.flags &= ~RXON_FLG_CCK_MSK;
}
}
-EXPORT_SYMBOL(iwl_set_flags_for_band);
/*
* initialize rxon structure with default values from eeprom
@@ -841,7 +817,6 @@ void iwl_connection_init_rx_config(struct iwl_priv *priv,
ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff;
ctx->staging.ofdm_ht_triple_stream_basic_rates = 0xff;
}
-EXPORT_SYMBOL(iwl_connection_init_rx_config);
void iwl_set_rate(struct iwl_priv *priv)
{
@@ -874,7 +849,6 @@ void iwl_set_rate(struct iwl_priv *priv)
(IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
}
}
-EXPORT_SYMBOL(iwl_set_rate);
void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
{
@@ -894,35 +868,6 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
mutex_unlock(&priv->mutex);
}
}
-EXPORT_SYMBOL(iwl_chswitch_done);
-
-void iwl_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);
- /*
- * MULTI-FIXME
- * See iwl_mac_channel_switch.
- */
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct iwl_rxon_cmd *rxon = (void *)&ctx->active;
-
- if (priv->switch_rxon.switch_in_progress) {
- if (!le32_to_cpu(csa->status) &&
- (csa->channel == priv->switch_rxon.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_chswitch_done(priv, true);
- } else {
- IWL_ERR(priv, "CSA notif (fail) : channel %d\n",
- le16_to_cpu(csa->channel));
- iwl_chswitch_done(priv, false);
- }
- }
-}
-EXPORT_SYMBOL(iwl_rx_csa);
#ifdef CONFIG_IWLWIFI_DEBUG
void iwl_print_rx_config_cmd(struct iwl_priv *priv,
@@ -944,13 +889,15 @@ void iwl_print_rx_config_cmd(struct iwl_priv *priv,
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_print_rx_config_cmd);
#endif
/**
* iwl_irq_handle_error - called for HW or SW error interrupt from card
*/
void iwl_irq_handle_error(struct iwl_priv *priv)
{
+ unsigned int reload_msec;
+ unsigned long reload_jiffies;
+
/* Set the FW error flag -- cleared on iwl_down */
set_bit(STATUS_FW_ERROR, &priv->status);
@@ -994,6 +941,25 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
* commands by clearing the INIT status bit */
clear_bit(STATUS_READY, &priv->status);
+ /*
+ * If firmware keep reloading, then it indicate something
+ * serious wrong and firmware having problem to recover
+ * from it. Instead of keep trying which will fill the syslog
+ * and hang the system, let's just stop it
+ */
+ reload_jiffies = jiffies;
+ reload_msec = jiffies_to_msecs((long) reload_jiffies -
+ (long) priv->reload_jiffies);
+ priv->reload_jiffies = reload_jiffies;
+ if (reload_msec <= IWL_MIN_RELOAD_DURATION) {
+ priv->reload_count++;
+ if (priv->reload_count >= IWL_MAX_CONTINUE_RELOAD_CNT) {
+ IWL_ERR(priv, "BUG_ON, Stop restarting\n");
+ return;
+ }
+ } else
+ priv->reload_count = 0;
+
if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
"Restarting adapter due to uCode error.\n");
@@ -1002,7 +968,6 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
queue_work(priv->workqueue, &priv->restart);
}
}
-EXPORT_SYMBOL(iwl_irq_handle_error);
static int iwl_apm_stop_master(struct iwl_priv *priv)
{
@@ -1039,7 +1004,6 @@ void iwl_apm_stop(struct iwl_priv *priv)
*/
iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
}
-EXPORT_SYMBOL(iwl_apm_stop);
/*
@@ -1154,13 +1118,14 @@ int iwl_apm_init(struct iwl_priv *priv)
out:
return ret;
}
-EXPORT_SYMBOL(iwl_apm_init);
int iwl_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);
@@ -1188,10 +1153,15 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
if (!iwl_is_ready_rf(priv))
return -EIO;
- /* scan complete use tx_power_next, need to be updated */
+ /* 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;
- if (test_bit(STATUS_SCANNING, &priv->status) && !force) {
- IWL_DEBUG_INFO(priv, "Deferring tx power set while scanning\n");
+
+ /* 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;
}
@@ -1207,7 +1177,6 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
}
return ret;
}
-EXPORT_SYMBOL(iwl_set_tx_power);
void iwl_send_bt_config(struct iwl_priv *priv)
{
@@ -1231,7 +1200,6 @@ void iwl_send_bt_config(struct iwl_priv *priv)
sizeof(struct iwl_bt_cmd), &bt_cmd))
IWL_ERR(priv, "failed to send BT Coex Config\n");
}
-EXPORT_SYMBOL(iwl_send_bt_config);
int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
{
@@ -1249,46 +1217,6 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
sizeof(struct iwl_statistics_cmd),
&statistics_cmd);
}
-EXPORT_SYMBOL(iwl_send_statistics_request);
-
-void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_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_rx_pm_sleep_notif);
-
-void iwl_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,
- get_cmd_string(pkt->hdr.cmd));
- iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len);
-}
-EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
-
-void iwl_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),
- 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_rx_reply_error);
void iwl_clear_isr_stats(struct iwl_priv *priv)
{
@@ -1340,7 +1268,6 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
IWL_DEBUG_MAC80211(priv, "leave\n");
return 0;
}
-EXPORT_SYMBOL(iwl_mac_conf_tx);
int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw)
{
@@ -1348,7 +1275,6 @@ int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw)
return priv->ibss_manager == IWL_IBSS_MANAGER;
}
-EXPORT_SYMBOL_GPL(iwl_mac_tx_last_beacon);
static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
@@ -1403,9 +1329,10 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
struct iwl_rxon_context *tmp, *ctx = NULL;
int err;
+ enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
- vif->type, vif->addr);
+ viftype, vif->addr);
mutex_lock(&priv->mutex);
@@ -1429,7 +1356,7 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
continue;
}
- if (!(possible_modes & BIT(vif->type)))
+ if (!(possible_modes & BIT(viftype)))
continue;
/* have maybe usable context w/o interface */
@@ -1457,7 +1384,6 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
IWL_DEBUG_MAC80211(priv, "leave\n");
return err;
}
-EXPORT_SYMBOL(iwl_mac_add_interface);
static void iwl_teardown_interface(struct iwl_priv *priv,
struct ieee80211_vif *vif,
@@ -1510,7 +1436,6 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw,
IWL_DEBUG_MAC80211(priv, "leave\n");
}
-EXPORT_SYMBOL(iwl_mac_remove_interface);
int iwl_alloc_txq_mem(struct iwl_priv *priv)
{
@@ -1525,14 +1450,12 @@ int iwl_alloc_txq_mem(struct iwl_priv *priv)
}
return 0;
}
-EXPORT_SYMBOL(iwl_alloc_txq_mem);
void iwl_free_txq_mem(struct iwl_priv *priv)
{
kfree(priv->txq);
priv->txq = NULL;
}
-EXPORT_SYMBOL(iwl_free_txq_mem);
#ifdef CONFIG_IWLWIFI_DEBUGFS
@@ -1571,7 +1494,6 @@ int iwl_alloc_traffic_mem(struct iwl_priv *priv)
iwl_reset_traffic_log(priv);
return 0;
}
-EXPORT_SYMBOL(iwl_alloc_traffic_mem);
void iwl_free_traffic_mem(struct iwl_priv *priv)
{
@@ -1581,7 +1503,6 @@ void iwl_free_traffic_mem(struct iwl_priv *priv)
kfree(priv->rx_traffic);
priv->rx_traffic = NULL;
}
-EXPORT_SYMBOL(iwl_free_traffic_mem);
void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header)
@@ -1606,7 +1527,6 @@ void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
(priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
}
}
-EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame);
void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header)
@@ -1631,7 +1551,6 @@ void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
(priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
}
}
-EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame);
const char *get_mgmt_string(int cmd)
{
@@ -1675,7 +1594,6 @@ void iwl_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));
- priv->led_tpt = 0;
}
/*
@@ -1768,9 +1686,7 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
stats->data_cnt++;
stats->data_bytes += len;
}
- iwl_leds_background(priv);
}
-EXPORT_SYMBOL(iwl_update_stats);
#endif
static void iwl_force_rf_reset(struct iwl_priv *priv)
@@ -1909,7 +1825,6 @@ int iwl_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
mutex_unlock(&priv->mutex);
return err;
}
-EXPORT_SYMBOL(iwl_mac_change_interface);
/*
* On every watchdog tick we check (latest) time stamp. If it does not
@@ -1981,7 +1896,6 @@ void iwl_bg_watchdog(unsigned long data)
mod_timer(&priv->watchdog, jiffies +
msecs_to_jiffies(IWL_WD_TICK(timeout)));
}
-EXPORT_SYMBOL(iwl_bg_watchdog);
void iwl_setup_watchdog(struct iwl_priv *priv)
{
@@ -1993,7 +1907,6 @@ void iwl_setup_watchdog(struct iwl_priv *priv)
else
del_timer(&priv->watchdog);
}
-EXPORT_SYMBOL(iwl_setup_watchdog);
/*
* extended beacon time format
@@ -2019,7 +1932,6 @@ u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval)
return (quot << priv->hw_params.beacon_time_tsf_bits) + rem;
}
-EXPORT_SYMBOL(iwl_usecs_to_beacons);
/* base is usually what we get from ucode with each received frame,
* the same as HW timer counter counting down
@@ -2047,7 +1959,6 @@ __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
return cpu_to_le32(res);
}
-EXPORT_SYMBOL(iwl_add_beacon_time);
#ifdef CONFIG_PM
@@ -2067,7 +1978,6 @@ int iwl_pci_suspend(struct device *device)
return 0;
}
-EXPORT_SYMBOL(iwl_pci_suspend);
int iwl_pci_resume(struct device *device)
{
@@ -2096,7 +2006,6 @@ int iwl_pci_resume(struct device *device)
return 0;
}
-EXPORT_SYMBOL(iwl_pci_resume);
const struct dev_pm_ops iwl_pm_ops = {
.suspend = iwl_pci_suspend,
@@ -2106,6 +2015,5 @@ const struct dev_pm_ops iwl_pm_ops = {
.poweroff = iwl_pci_suspend,
.restore = iwl_pci_resume,
};
-EXPORT_SYMBOL(iwl_pm_ops);
#endif /* CONFIG_PM */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 17:35:20 +0000