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path: root/drivers/net/wireless/purelifi/plfxlc/mac.c
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Diffstat (limited to 'drivers/net/wireless/purelifi/plfxlc/mac.c')
-rw-r--r--drivers/net/wireless/purelifi/plfxlc/mac.c754
1 files changed, 754 insertions, 0 deletions
diff --git a/drivers/net/wireless/purelifi/plfxlc/mac.c b/drivers/net/wireless/purelifi/plfxlc/mac.c
new file mode 100644
index 000000000000..90e552532701
--- /dev/null
+++ b/drivers/net/wireless/purelifi/plfxlc/mac.c
@@ -0,0 +1,754 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 pureLiFi
+ */
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/gpio.h>
+#include <linux/jiffies.h>
+#include <net/ieee80211_radiotap.h>
+
+#include "chip.h"
+#include "mac.h"
+#include "usb.h"
+
+static const struct ieee80211_rate plfxlc_rates[] = {
+ { .bitrate = 10,
+ .hw_value = PURELIFI_CCK_RATE_1M,
+ .flags = 0 },
+ { .bitrate = 20,
+ .hw_value = PURELIFI_CCK_RATE_2M,
+ .hw_value_short = PURELIFI_CCK_RATE_2M
+ | PURELIFI_CCK_PREA_SHORT,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 55,
+ .hw_value = PURELIFI_CCK_RATE_5_5M,
+ .hw_value_short = PURELIFI_CCK_RATE_5_5M
+ | PURELIFI_CCK_PREA_SHORT,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 110,
+ .hw_value = PURELIFI_CCK_RATE_11M,
+ .hw_value_short = PURELIFI_CCK_RATE_11M
+ | PURELIFI_CCK_PREA_SHORT,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 60,
+ .hw_value = PURELIFI_OFDM_RATE_6M,
+ .flags = 0 },
+ { .bitrate = 90,
+ .hw_value = PURELIFI_OFDM_RATE_9M,
+ .flags = 0 },
+ { .bitrate = 120,
+ .hw_value = PURELIFI_OFDM_RATE_12M,
+ .flags = 0 },
+ { .bitrate = 180,
+ .hw_value = PURELIFI_OFDM_RATE_18M,
+ .flags = 0 },
+ { .bitrate = 240,
+ .hw_value = PURELIFI_OFDM_RATE_24M,
+ .flags = 0 },
+ { .bitrate = 360,
+ .hw_value = PURELIFI_OFDM_RATE_36M,
+ .flags = 0 },
+ { .bitrate = 480,
+ .hw_value = PURELIFI_OFDM_RATE_48M,
+ .flags = 0 },
+ { .bitrate = 540,
+ .hw_value = PURELIFI_OFDM_RATE_54M,
+ .flags = 0 }
+};
+
+static const struct ieee80211_channel plfxlc_channels[] = {
+ { .center_freq = 2412, .hw_value = 1 },
+ { .center_freq = 2417, .hw_value = 2 },
+ { .center_freq = 2422, .hw_value = 3 },
+ { .center_freq = 2427, .hw_value = 4 },
+ { .center_freq = 2432, .hw_value = 5 },
+ { .center_freq = 2437, .hw_value = 6 },
+ { .center_freq = 2442, .hw_value = 7 },
+ { .center_freq = 2447, .hw_value = 8 },
+ { .center_freq = 2452, .hw_value = 9 },
+ { .center_freq = 2457, .hw_value = 10 },
+ { .center_freq = 2462, .hw_value = 11 },
+ { .center_freq = 2467, .hw_value = 12 },
+ { .center_freq = 2472, .hw_value = 13 },
+ { .center_freq = 2484, .hw_value = 14 },
+};
+
+int plfxlc_mac_preinit_hw(struct ieee80211_hw *hw, const u8 *hw_address)
+{
+ SET_IEEE80211_PERM_ADDR(hw, hw_address);
+ return 0;
+}
+
+int plfxlc_mac_init_hw(struct ieee80211_hw *hw)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ struct plfxlc_chip *chip = &mac->chip;
+ int r;
+
+ r = plfxlc_chip_init_hw(chip);
+ if (r) {
+ dev_warn(plfxlc_mac_dev(mac), "init hw failed (%d)\n", r);
+ return r;
+ }
+
+ dev_dbg(plfxlc_mac_dev(mac), "irq_disabled (%d)\n", irqs_disabled());
+ regulatory_hint(hw->wiphy, "00");
+ return r;
+}
+
+void plfxlc_mac_release(struct plfxlc_mac *mac)
+{
+ plfxlc_chip_release(&mac->chip);
+ lockdep_assert_held(&mac->lock);
+}
+
+int plfxlc_op_start(struct ieee80211_hw *hw)
+{
+ plfxlc_hw_mac(hw)->chip.usb.initialized = 1;
+ return 0;
+}
+
+void plfxlc_op_stop(struct ieee80211_hw *hw)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+
+ clear_bit(PURELIFI_DEVICE_RUNNING, &mac->flags);
+}
+
+int plfxlc_restore_settings(struct plfxlc_mac *mac)
+{
+ int beacon_interval, beacon_period;
+ struct sk_buff *beacon;
+
+ spin_lock_irq(&mac->lock);
+ beacon_interval = mac->beacon.interval;
+ beacon_period = mac->beacon.period;
+ spin_unlock_irq(&mac->lock);
+
+ if (mac->type != NL80211_IFTYPE_ADHOC)
+ return 0;
+
+ if (mac->vif) {
+ beacon = ieee80211_beacon_get(mac->hw, mac->vif);
+ if (beacon) {
+ /*beacon is hardcoded in firmware */
+ kfree_skb(beacon);
+ /* Returned skb is used only once and lowlevel
+ * driver is responsible for freeing it.
+ */
+ }
+ }
+
+ plfxlc_set_beacon_interval(&mac->chip, beacon_interval,
+ beacon_period, mac->type);
+
+ spin_lock_irq(&mac->lock);
+ mac->beacon.last_update = jiffies;
+ spin_unlock_irq(&mac->lock);
+
+ return 0;
+}
+
+static void plfxlc_mac_tx_status(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ int ackssi,
+ struct tx_status *tx_status)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ int success = 1;
+
+ ieee80211_tx_info_clear_status(info);
+ if (tx_status)
+ success = !tx_status->failure;
+
+ if (success)
+ info->flags |= IEEE80211_TX_STAT_ACK;
+ else
+ info->flags &= ~IEEE80211_TX_STAT_ACK;
+
+ info->status.ack_signal = 50;
+ ieee80211_tx_status_irqsafe(hw, skb);
+}
+
+void plfxlc_mac_tx_to_dev(struct sk_buff *skb, int error)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_hw *hw = info->rate_driver_data[0];
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ struct sk_buff_head *q = NULL;
+
+ ieee80211_tx_info_clear_status(info);
+ skb_pull(skb, sizeof(struct plfxlc_ctrlset));
+
+ if (unlikely(error ||
+ (info->flags & IEEE80211_TX_CTL_NO_ACK))) {
+ ieee80211_tx_status_irqsafe(hw, skb);
+ return;
+ }
+
+ q = &mac->ack_wait_queue;
+
+ skb_queue_tail(q, skb);
+ while (skb_queue_len(q)/* > PURELIFI_MAC_MAX_ACK_WAITERS*/) {
+ plfxlc_mac_tx_status(hw, skb_dequeue(q),
+ mac->ack_pending ?
+ mac->ack_signal : 0,
+ NULL);
+ mac->ack_pending = 0;
+ }
+}
+
+static int plfxlc_fill_ctrlset(struct plfxlc_mac *mac, struct sk_buff *skb)
+{
+ unsigned int frag_len = skb->len;
+ struct plfxlc_ctrlset *cs;
+ u32 temp_payload_len = 0;
+ unsigned int tmp;
+ u32 temp_len = 0;
+
+ if (skb_headroom(skb) < sizeof(struct plfxlc_ctrlset)) {
+ dev_dbg(plfxlc_mac_dev(mac), "Not enough hroom(1)\n");
+ return 1;
+ }
+
+ cs = (void *)skb_push(skb, sizeof(struct plfxlc_ctrlset));
+ temp_payload_len = frag_len;
+ temp_len = temp_payload_len +
+ sizeof(struct plfxlc_ctrlset) -
+ sizeof(cs->id) - sizeof(cs->len);
+
+ /* Data packet lengths must be multiple of four bytes and must
+ * not be a multiple of 512 bytes. First, it is attempted to
+ * append the data packet in the tailroom of the skb. In rare
+ * occasions, the tailroom is too small. In this case, the
+ * content of the packet is shifted into the headroom of the skb
+ * by memcpy. Headroom is allocated at startup (below in this
+ * file). Therefore, there will be always enough headroom. The
+ * call skb_headroom is an additional safety which might be
+ * dropped.
+ */
+ /* check if 32 bit aligned and align data */
+ tmp = skb->len & 3;
+ if (tmp) {
+ if (skb_tailroom(skb) < (3 - tmp)) {
+ if (skb_headroom(skb) >= 4 - tmp) {
+ u8 len;
+ u8 *src_pt;
+ u8 *dest_pt;
+
+ len = skb->len;
+ src_pt = skb->data;
+ dest_pt = skb_push(skb, 4 - tmp);
+ memmove(dest_pt, src_pt, len);
+ } else {
+ return -ENOBUFS;
+ }
+ } else {
+ skb_put(skb, 4 - tmp);
+ }
+ temp_len += 4 - tmp;
+ }
+
+ /* check if not multiple of 512 and align data */
+ tmp = skb->len & 0x1ff;
+ if (!tmp) {
+ if (skb_tailroom(skb) < 4) {
+ if (skb_headroom(skb) >= 4) {
+ u8 len = skb->len;
+ u8 *src_pt = skb->data;
+ u8 *dest_pt = skb_push(skb, 4);
+
+ memmove(dest_pt, src_pt, len);
+ } else {
+ /* should never happen because
+ * sufficient headroom was reserved
+ */
+ return -ENOBUFS;
+ }
+ } else {
+ skb_put(skb, 4);
+ }
+ temp_len += 4;
+ }
+
+ cs->id = cpu_to_be32(USB_REQ_DATA_TX);
+ cs->len = cpu_to_be32(temp_len);
+ cs->payload_len_nw = cpu_to_be32(temp_payload_len);
+
+ return 0;
+}
+
+static void plfxlc_op_tx(struct ieee80211_hw *hw,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct plfxlc_header *plhdr = (void *)skb->data;
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ struct plfxlc_usb *usb = &mac->chip.usb;
+ unsigned long flags;
+ int r;
+
+ r = plfxlc_fill_ctrlset(mac, skb);
+ if (r)
+ goto fail;
+
+ info->rate_driver_data[0] = hw;
+
+ if (plhdr->frametype == IEEE80211_FTYPE_DATA) {
+ u8 *dst_mac = plhdr->dmac;
+ u8 sidx;
+ bool found = false;
+ struct plfxlc_usb_tx *tx = &usb->tx;
+
+ for (sidx = 0; sidx < MAX_STA_NUM; sidx++) {
+ if (!(tx->station[sidx].flag & STATION_CONNECTED_FLAG))
+ continue;
+ if (memcmp(tx->station[sidx].mac, dst_mac, ETH_ALEN))
+ continue;
+ found = true;
+ break;
+ }
+
+ /* Default to broadcast address for unknown MACs */
+ if (!found)
+ sidx = STA_BROADCAST_INDEX;
+
+ /* Stop OS from sending packets, if the queue is half full */
+ if (skb_queue_len(&tx->station[sidx].data_list) > 60)
+ ieee80211_stop_queues(plfxlc_usb_to_hw(usb));
+
+ /* Schedule packet for transmission if queue is not full */
+ if (skb_queue_len(&tx->station[sidx].data_list) > 256)
+ goto fail;
+ skb_queue_tail(&tx->station[sidx].data_list, skb);
+ plfxlc_send_packet_from_data_queue(usb);
+
+ } else {
+ spin_lock_irqsave(&usb->tx.lock, flags);
+ r = plfxlc_usb_wreq_async(&mac->chip.usb, skb->data, skb->len,
+ USB_REQ_DATA_TX, plfxlc_tx_urb_complete, skb);
+ spin_unlock_irqrestore(&usb->tx.lock, flags);
+ if (r)
+ goto fail;
+ }
+ return;
+
+fail:
+ dev_kfree_skb(skb);
+}
+
+static int plfxlc_filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr,
+ struct ieee80211_rx_status *stats)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ struct sk_buff_head *q;
+ int i, position = 0;
+ unsigned long flags;
+ struct sk_buff *skb;
+ bool found = false;
+
+ if (!ieee80211_is_ack(rx_hdr->frame_control))
+ return 0;
+
+ dev_dbg(plfxlc_mac_dev(mac), "ACK Received\n");
+
+ /* code based on zy driver, this logic may need fix */
+ q = &mac->ack_wait_queue;
+ spin_lock_irqsave(&q->lock, flags);
+
+ skb_queue_walk(q, skb) {
+ struct ieee80211_hdr *tx_hdr;
+
+ position++;
+
+ if (mac->ack_pending && skb_queue_is_first(q, skb))
+ continue;
+ if (mac->ack_pending == 0)
+ break;
+
+ tx_hdr = (struct ieee80211_hdr *)skb->data;
+ if (likely(ether_addr_equal(tx_hdr->addr2, rx_hdr->addr1))) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (found) {
+ for (i = 1; i < position; i++)
+ skb = __skb_dequeue(q);
+ if (i == position) {
+ plfxlc_mac_tx_status(hw, skb,
+ mac->ack_pending ?
+ mac->ack_signal : 0,
+ NULL);
+ mac->ack_pending = 0;
+ }
+
+ mac->ack_pending = skb_queue_len(q) ? 1 : 0;
+ mac->ack_signal = stats->signal;
+ }
+
+ spin_unlock_irqrestore(&q->lock, flags);
+ return 1;
+}
+
+int plfxlc_mac_rx(struct ieee80211_hw *hw, const u8 *buffer,
+ unsigned int length)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ struct ieee80211_rx_status stats;
+ const struct rx_status *status;
+ unsigned int payload_length;
+ struct plfxlc_usb_tx *tx;
+ struct sk_buff *skb;
+ int need_padding;
+ __le16 fc;
+ int sidx;
+
+ /* Packet blockade during disabled interface. */
+ if (!mac->vif)
+ return 0;
+
+ status = (struct rx_status *)buffer;
+
+ memset(&stats, 0, sizeof(stats));
+
+ stats.flag = 0;
+ stats.freq = 2412;
+ stats.band = NL80211_BAND_LC;
+ mac->rssi = -15 * be16_to_cpu(status->rssi) / 10;
+
+ stats.signal = mac->rssi;
+
+ if (status->rate_idx > 7)
+ stats.rate_idx = 0;
+ else
+ stats.rate_idx = status->rate_idx;
+
+ mac->crc_errors = be64_to_cpu(status->crc_error_count);
+
+ /* TODO bad frame check for CRC error*/
+ if (plfxlc_filter_ack(hw, (struct ieee80211_hdr *)buffer, &stats) &&
+ !mac->pass_ctrl)
+ return 0;
+
+ buffer += sizeof(struct rx_status);
+ payload_length = get_unaligned_be32(buffer);
+
+ if (payload_length > 1560) {
+ dev_err(plfxlc_mac_dev(mac), " > MTU %u\n", payload_length);
+ return 0;
+ }
+ buffer += sizeof(u32);
+
+ fc = get_unaligned((__le16 *)buffer);
+ need_padding = ieee80211_is_data_qos(fc) ^ ieee80211_has_a4(fc);
+
+ tx = &mac->chip.usb.tx;
+
+ for (sidx = 0; sidx < MAX_STA_NUM - 1; sidx++) {
+ if (memcmp(&buffer[10], tx->station[sidx].mac, ETH_ALEN))
+ continue;
+ if (tx->station[sidx].flag & STATION_CONNECTED_FLAG) {
+ tx->station[sidx].flag |= STATION_HEARTBEAT_FLAG;
+ break;
+ }
+ }
+
+ if (sidx == MAX_STA_NUM - 1) {
+ for (sidx = 0; sidx < MAX_STA_NUM - 1; sidx++) {
+ if (tx->station[sidx].flag & STATION_CONNECTED_FLAG)
+ continue;
+ memcpy(tx->station[sidx].mac, &buffer[10], ETH_ALEN);
+ tx->station[sidx].flag |= STATION_CONNECTED_FLAG;
+ tx->station[sidx].flag |= STATION_HEARTBEAT_FLAG;
+ break;
+ }
+ }
+
+ switch (buffer[0]) {
+ case IEEE80211_STYPE_PROBE_REQ:
+ dev_dbg(plfxlc_mac_dev(mac), "Probe request\n");
+ break;
+ case IEEE80211_STYPE_ASSOC_REQ:
+ dev_dbg(plfxlc_mac_dev(mac), "Association request\n");
+ break;
+ case IEEE80211_STYPE_AUTH:
+ dev_dbg(plfxlc_mac_dev(mac), "Authentication req\n");
+ break;
+ case IEEE80211_FTYPE_DATA:
+ dev_dbg(plfxlc_mac_dev(mac), "802.11 data frame\n");
+ break;
+ }
+
+ skb = dev_alloc_skb(payload_length + (need_padding ? 2 : 0));
+ if (!skb)
+ return -ENOMEM;
+
+ if (need_padding)
+ /* Make sure that the payload data is 4 byte aligned. */
+ skb_reserve(skb, 2);
+
+ skb_put_data(skb, buffer, payload_length);
+ memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats));
+ ieee80211_rx_irqsafe(hw, skb);
+ return 0;
+}
+
+static int plfxlc_op_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ static const char * const iftype80211[] = {
+ [NL80211_IFTYPE_STATION] = "Station",
+ [NL80211_IFTYPE_ADHOC] = "Adhoc"
+ };
+
+ if (mac->type != NL80211_IFTYPE_UNSPECIFIED)
+ return -EOPNOTSUPP;
+
+ if (vif->type == NL80211_IFTYPE_ADHOC ||
+ vif->type == NL80211_IFTYPE_STATION) {
+ dev_dbg(plfxlc_mac_dev(mac), "%s %s\n", __func__,
+ iftype80211[vif->type]);
+ mac->type = vif->type;
+ mac->vif = vif;
+ return 0;
+ }
+ dev_dbg(plfxlc_mac_dev(mac), "unsupported iftype\n");
+ return -EOPNOTSUPP;
+}
+
+static void plfxlc_op_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+
+ mac->type = NL80211_IFTYPE_UNSPECIFIED;
+ mac->vif = NULL;
+}
+
+static int plfxlc_op_config(struct ieee80211_hw *hw, u32 changed)
+{
+ return 0;
+}
+
+#define SUPPORTED_FIF_FLAGS \
+ (FIF_ALLMULTI | FIF_FCSFAIL | FIF_CONTROL | \
+ FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)
+static void plfxlc_op_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *new_flags,
+ u64 multicast)
+{
+ struct plfxlc_mc_hash hash = {
+ .low = multicast,
+ .high = multicast >> 32,
+ };
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ unsigned long flags;
+
+ /* Only deal with supported flags */
+ *new_flags &= SUPPORTED_FIF_FLAGS;
+
+ /* If multicast parameter
+ * (as returned by plfxlc_op_prepare_multicast)
+ * has changed, no bit in changed_flags is set. To handle this
+ * situation, we do not return if changed_flags is 0. If we do so,
+ * we will have some issue with IPv6 which uses multicast for link
+ * layer address resolution.
+ */
+ if (*new_flags & (FIF_ALLMULTI))
+ plfxlc_mc_add_all(&hash);
+
+ spin_lock_irqsave(&mac->lock, flags);
+ mac->pass_failed_fcs = !!(*new_flags & FIF_FCSFAIL);
+ mac->pass_ctrl = !!(*new_flags & FIF_CONTROL);
+ mac->multicast_hash = hash;
+ spin_unlock_irqrestore(&mac->lock, flags);
+
+ /* no handling required for FIF_OTHER_BSS as we don't currently
+ * do BSSID filtering
+ */
+ /* FIXME: in future it would be nice to enable the probe response
+ * filter (so that the driver doesn't see them) until
+ * FIF_BCN_PRBRESP_PROMISC is set. however due to atomicity here, we'd
+ * have to schedule work to enable prbresp reception, which might
+ * happen too late. For now we'll just listen and forward them all the
+ * time.
+ */
+}
+
+static void plfxlc_op_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf,
+ u32 changes)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+ int associated;
+
+ dev_dbg(plfxlc_mac_dev(mac), "changes: %x\n", changes);
+
+ if (mac->type != NL80211_IFTYPE_ADHOC) { /* for STATION */
+ associated = is_valid_ether_addr(bss_conf->bssid);
+ goto exit_all;
+ }
+ /* for ADHOC */
+ associated = true;
+ if (changes & BSS_CHANGED_BEACON) {
+ struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
+
+ if (beacon) {
+ /*beacon is hardcoded in firmware */
+ kfree_skb(beacon);
+ /*Returned skb is used only once and
+ * low-level driver is
+ * responsible for freeing it.
+ */
+ }
+ }
+
+ if (changes & BSS_CHANGED_BEACON_ENABLED) {
+ u16 interval = 0;
+ u8 period = 0;
+
+ if (bss_conf->enable_beacon) {
+ period = bss_conf->dtim_period;
+ interval = bss_conf->beacon_int;
+ }
+
+ spin_lock_irq(&mac->lock);
+ mac->beacon.period = period;
+ mac->beacon.interval = interval;
+ mac->beacon.last_update = jiffies;
+ spin_unlock_irq(&mac->lock);
+
+ plfxlc_set_beacon_interval(&mac->chip, interval,
+ period, mac->type);
+ }
+exit_all:
+ spin_lock_irq(&mac->lock);
+ mac->associated = associated;
+ spin_unlock_irq(&mac->lock);
+}
+
+static int plfxlc_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats)
+{
+ stats->dot11ACKFailureCount = 0;
+ stats->dot11RTSFailureCount = 0;
+ stats->dot11FCSErrorCount = 0;
+ stats->dot11RTSSuccessCount = 0;
+ return 0;
+}
+
+static const char et_strings[][ETH_GSTRING_LEN] = {
+ "phy_rssi",
+ "phy_rx_crc_err"
+};
+
+static int plfxlc_get_et_sset_count(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, int sset)
+{
+ if (sset == ETH_SS_STATS)
+ return ARRAY_SIZE(et_strings);
+
+ return 0;
+}
+
+static void plfxlc_get_et_strings(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ u32 sset, u8 *data)
+{
+ if (sset == ETH_SS_STATS)
+ memcpy(data, *et_strings, sizeof(et_strings));
+}
+
+static void plfxlc_get_et_stats(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
+
+ data[0] = mac->rssi;
+ data[1] = mac->crc_errors;
+}
+
+static int plfxlc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+ return 0;
+}
+
+static const struct ieee80211_ops plfxlc_ops = {
+ .tx = plfxlc_op_tx,
+ .start = plfxlc_op_start,
+ .stop = plfxlc_op_stop,
+ .add_interface = plfxlc_op_add_interface,
+ .remove_interface = plfxlc_op_remove_interface,
+ .set_rts_threshold = plfxlc_set_rts_threshold,
+ .config = plfxlc_op_config,
+ .configure_filter = plfxlc_op_configure_filter,
+ .bss_info_changed = plfxlc_op_bss_info_changed,
+ .get_stats = plfxlc_get_stats,
+ .get_et_sset_count = plfxlc_get_et_sset_count,
+ .get_et_stats = plfxlc_get_et_stats,
+ .get_et_strings = plfxlc_get_et_strings,
+};
+
+struct ieee80211_hw *plfxlc_mac_alloc_hw(struct usb_interface *intf)
+{
+ struct ieee80211_hw *hw;
+ struct plfxlc_mac *mac;
+
+ hw = ieee80211_alloc_hw(sizeof(struct plfxlc_mac), &plfxlc_ops);
+ if (!hw) {
+ dev_dbg(&intf->dev, "out of memory\n");
+ return NULL;
+ }
+ set_wiphy_dev(hw->wiphy, &intf->dev);
+
+ mac = plfxlc_hw_mac(hw);
+ memset(mac, 0, sizeof(*mac));
+ spin_lock_init(&mac->lock);
+ mac->hw = hw;
+
+ mac->type = NL80211_IFTYPE_UNSPECIFIED;
+
+ memcpy(mac->channels, plfxlc_channels, sizeof(plfxlc_channels));
+ memcpy(mac->rates, plfxlc_rates, sizeof(plfxlc_rates));
+ mac->band.n_bitrates = ARRAY_SIZE(plfxlc_rates);
+ mac->band.bitrates = mac->rates;
+ mac->band.n_channels = ARRAY_SIZE(plfxlc_channels);
+ mac->band.channels = mac->channels;
+ hw->wiphy->bands[NL80211_BAND_LC] = &mac->band;
+ hw->conf.chandef.width = NL80211_CHAN_WIDTH_20;
+
+ ieee80211_hw_set(hw, RX_INCLUDES_FCS);
+ ieee80211_hw_set(hw, SIGNAL_DBM);
+ ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
+ ieee80211_hw_set(hw, MFP_CAPABLE);
+
+ hw->wiphy->interface_modes =
+ BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_ADHOC);
+ hw->max_signal = 100;
+ hw->queues = 1;
+ /* 4 for 32 bit alignment if no tailroom */
+ hw->extra_tx_headroom = sizeof(struct plfxlc_ctrlset) + 4;
+ /* Tell mac80211 that we support multi rate retries */
+ hw->max_rates = IEEE80211_TX_MAX_RATES;
+ hw->max_rate_tries = 18; /* 9 rates * 2 retries/rate */
+
+ skb_queue_head_init(&mac->ack_wait_queue);
+ mac->ack_pending = 0;
+
+ plfxlc_chip_init(&mac->chip, hw, intf);
+
+ SET_IEEE80211_DEV(hw, &intf->dev);
+ return hw;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 07:36:13 +0000