Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / net / wireless / ath / ath9k / htc_drv_main.c
diff --git a/kernel/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/kernel/drivers/net/wireless/ath/ath9k/htc_drv_main.c
new file mode 100644 (file)
index 0000000..564923c
--- /dev/null
@@ -0,0 +1,1877 @@
+/*
+ * Copyright (c) 2010-2011 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.
+ */
+
+#include "htc.h"
+
+/*************/
+/* Utilities */
+/*************/
+
+/* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */
+static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
+                                             struct ath9k_channel *ichan)
+{
+       if (IS_CHAN_5GHZ(ichan))
+               return HTC_MODE_11NA;
+
+       return HTC_MODE_11NG;
+}
+
+bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
+                       enum ath9k_power_mode mode)
+{
+       bool ret;
+
+       mutex_lock(&priv->htc_pm_lock);
+       ret = ath9k_hw_setpower(priv->ah, mode);
+       mutex_unlock(&priv->htc_pm_lock);
+
+       return ret;
+}
+
+void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv)
+{
+       mutex_lock(&priv->htc_pm_lock);
+       if (++priv->ps_usecount != 1)
+               goto unlock;
+       ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE);
+
+unlock:
+       mutex_unlock(&priv->htc_pm_lock);
+}
+
+void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv)
+{
+       bool reset;
+
+       mutex_lock(&priv->htc_pm_lock);
+       if (--priv->ps_usecount != 0)
+               goto unlock;
+
+       if (priv->ps_idle) {
+               ath9k_hw_setrxabort(priv->ah, true);
+               ath9k_hw_stopdmarecv(priv->ah, &reset);
+               ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP);
+       } else if (priv->ps_enabled) {
+               ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP);
+       }
+
+unlock:
+       mutex_unlock(&priv->htc_pm_lock);
+}
+
+void ath9k_ps_work(struct work_struct *work)
+{
+       struct ath9k_htc_priv *priv =
+               container_of(work, struct ath9k_htc_priv,
+                            ps_work);
+       ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
+
+       /* The chip wakes up after receiving the first beacon
+          while network sleep is enabled. For the driver to
+          be in sync with the hw, set the chip to awake and
+          only then set it to sleep.
+        */
+       ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
+}
+
+static void ath9k_htc_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+       struct ath9k_htc_priv *priv = data;
+       struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+
+       if ((vif->type == NL80211_IFTYPE_AP ||
+            vif->type == NL80211_IFTYPE_MESH_POINT) &&
+           bss_conf->enable_beacon) {
+               priv->reconfig_beacon = true;
+               priv->rearm_ani = true;
+       }
+
+       if (bss_conf->assoc) {
+               priv->rearm_ani = true;
+               priv->reconfig_beacon = true;
+       }
+}
+
+static void ath9k_htc_vif_reconfig(struct ath9k_htc_priv *priv)
+{
+       priv->rearm_ani = false;
+       priv->reconfig_beacon = false;
+
+       ieee80211_iterate_active_interfaces_atomic(
+               priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+               ath9k_htc_vif_iter, priv);
+       if (priv->rearm_ani)
+               ath9k_htc_start_ani(priv);
+
+       if (priv->reconfig_beacon) {
+               ath9k_htc_ps_wakeup(priv);
+               ath9k_htc_beacon_reconfig(priv);
+               ath9k_htc_ps_restore(priv);
+       }
+}
+
+static void ath9k_htc_bssid_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+       struct ath9k_vif_iter_data *iter_data = data;
+       int i;
+
+       if (iter_data->hw_macaddr != NULL) {
+               for (i = 0; i < ETH_ALEN; i++)
+                       iter_data->mask[i] &= ~(iter_data->hw_macaddr[i] ^ mac[i]);
+       } else {
+               iter_data->hw_macaddr = mac;
+       }
+}
+
+static void ath9k_htc_set_mac_bssid_mask(struct ath9k_htc_priv *priv,
+                                    struct ieee80211_vif *vif)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_vif_iter_data iter_data;
+
+       /*
+        * Pick the MAC address of the first interface as the new hardware
+        * MAC address. The hardware will use it together with the BSSID mask
+        * when matching addresses.
+        */
+       iter_data.hw_macaddr = NULL;
+       eth_broadcast_addr(iter_data.mask);
+
+       if (vif)
+               ath9k_htc_bssid_iter(&iter_data, vif->addr, vif);
+
+       /* Get list of all active MAC addresses */
+       ieee80211_iterate_active_interfaces_atomic(
+               priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+               ath9k_htc_bssid_iter, &iter_data);
+
+       memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
+
+       if (iter_data.hw_macaddr)
+               memcpy(common->macaddr, iter_data.hw_macaddr, ETH_ALEN);
+
+       ath_hw_setbssidmask(common);
+}
+
+static void ath9k_htc_set_opmode(struct ath9k_htc_priv *priv)
+{
+       if (priv->num_ibss_vif)
+               priv->ah->opmode = NL80211_IFTYPE_ADHOC;
+       else if (priv->num_ap_vif)
+               priv->ah->opmode = NL80211_IFTYPE_AP;
+       else if (priv->num_mbss_vif)
+               priv->ah->opmode = NL80211_IFTYPE_MESH_POINT;
+       else
+               priv->ah->opmode = NL80211_IFTYPE_STATION;
+
+       ath9k_hw_setopmode(priv->ah);
+}
+
+void ath9k_htc_reset(struct ath9k_htc_priv *priv)
+{
+       struct ath_hw *ah = priv->ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+       struct ieee80211_channel *channel = priv->hw->conf.chandef.chan;
+       struct ath9k_hw_cal_data *caldata = NULL;
+       enum htc_phymode mode;
+       __be16 htc_mode;
+       u8 cmd_rsp;
+       int ret;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       ath9k_htc_stop_ani(priv);
+       ieee80211_stop_queues(priv->hw);
+
+       del_timer_sync(&priv->tx.cleanup_timer);
+       ath9k_htc_tx_drain(priv);
+
+       WMI_CMD(WMI_DISABLE_INTR_CMDID);
+       WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
+       WMI_CMD(WMI_STOP_RECV_CMDID);
+
+       ath9k_wmi_event_drain(priv);
+
+       caldata = &priv->caldata;
+       ret = ath9k_hw_reset(ah, ah->curchan, caldata, false);
+       if (ret) {
+               ath_err(common,
+                       "Unable to reset device (%u Mhz) reset status %d\n",
+                       channel->center_freq, ret);
+       }
+
+       ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
+                              &priv->curtxpow);
+
+       WMI_CMD(WMI_START_RECV_CMDID);
+       ath9k_host_rx_init(priv);
+
+       mode = ath9k_htc_get_curmode(priv, ah->curchan);
+       htc_mode = cpu_to_be16(mode);
+       WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
+
+       WMI_CMD(WMI_ENABLE_INTR_CMDID);
+       htc_start(priv->htc);
+       ath9k_htc_vif_reconfig(priv);
+       ieee80211_wake_queues(priv->hw);
+
+       mod_timer(&priv->tx.cleanup_timer,
+                 jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
+                                struct ieee80211_hw *hw,
+                                struct ath9k_channel *hchan)
+{
+       struct ath_hw *ah = priv->ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+       struct ieee80211_conf *conf = &common->hw->conf;
+       bool fastcc;
+       struct ieee80211_channel *channel = hw->conf.chandef.chan;
+       struct ath9k_hw_cal_data *caldata = NULL;
+       enum htc_phymode mode;
+       __be16 htc_mode;
+       u8 cmd_rsp;
+       int ret;
+
+       if (test_bit(ATH_OP_INVALID, &common->op_flags))
+               return -EIO;
+
+       fastcc = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
+
+       ath9k_htc_ps_wakeup(priv);
+
+       ath9k_htc_stop_ani(priv);
+       del_timer_sync(&priv->tx.cleanup_timer);
+       ath9k_htc_tx_drain(priv);
+
+       WMI_CMD(WMI_DISABLE_INTR_CMDID);
+       WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
+       WMI_CMD(WMI_STOP_RECV_CMDID);
+
+       ath9k_wmi_event_drain(priv);
+
+       ath_dbg(common, CONFIG,
+               "(%u MHz) -> (%u MHz), HT: %d, HT40: %d fastcc: %d\n",
+               priv->ah->curchan->channel,
+               channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf),
+               fastcc);
+
+       if (!fastcc)
+               caldata = &priv->caldata;
+
+       ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
+       if (ret) {
+               ath_err(common,
+                       "Unable to reset channel (%u Mhz) reset status %d\n",
+                       channel->center_freq, ret);
+               goto err;
+       }
+
+       ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
+                              &priv->curtxpow);
+
+       WMI_CMD(WMI_START_RECV_CMDID);
+       if (ret)
+               goto err;
+
+       ath9k_host_rx_init(priv);
+
+       mode = ath9k_htc_get_curmode(priv, hchan);
+       htc_mode = cpu_to_be16(mode);
+       WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
+       if (ret)
+               goto err;
+
+       WMI_CMD(WMI_ENABLE_INTR_CMDID);
+       if (ret)
+               goto err;
+
+       htc_start(priv->htc);
+
+       if (!test_bit(ATH_OP_SCANNING, &common->op_flags) &&
+           !(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
+               ath9k_htc_vif_reconfig(priv);
+
+       mod_timer(&priv->tx.cleanup_timer,
+                 jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
+
+       /* perform spectral scan if requested. */
+       if (test_bit(ATH_OP_SCANNING, &common->op_flags) &&
+                    priv->spec_priv.spectral_mode == SPECTRAL_CHANSCAN)
+               ath9k_cmn_spectral_scan_trigger(common, &priv->spec_priv);
+err:
+       ath9k_htc_ps_restore(priv);
+       return ret;
+}
+
+/*
+ * Monitor mode handling is a tad complicated because the firmware requires
+ * an interface to be created exclusively, while mac80211 doesn't associate
+ * an interface with the mode.
+ *
+ * So, for now, only one monitor interface can be configured.
+ */
+static void __ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_vif hvif;
+       int ret = 0;
+       u8 cmd_rsp;
+
+       memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
+       memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
+       hvif.index = priv->mon_vif_idx;
+       WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
+       if (ret) {
+               ath_err(common, "Unable to remove monitor interface at idx: %d\n",
+                       priv->mon_vif_idx);
+       }
+
+       priv->nvifs--;
+       priv->vif_slot &= ~(1 << priv->mon_vif_idx);
+}
+
+static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_vif hvif;
+       struct ath9k_htc_target_sta tsta;
+       int ret = 0, sta_idx;
+       u8 cmd_rsp;
+
+       if ((priv->nvifs >= ATH9K_HTC_MAX_VIF) ||
+           (priv->nstations >= ATH9K_HTC_MAX_STA)) {
+               ret = -ENOBUFS;
+               goto err_vif;
+       }
+
+       sta_idx = ffz(priv->sta_slot);
+       if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA)) {
+               ret = -ENOBUFS;
+               goto err_vif;
+       }
+
+       /*
+        * Add an interface.
+        */
+       memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
+       memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
+
+       hvif.opmode = HTC_M_MONITOR;
+       hvif.index = ffz(priv->vif_slot);
+
+       WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
+       if (ret)
+               goto err_vif;
+
+       /*
+        * Assign the monitor interface index as a special case here.
+        * This is needed when the interface is brought down.
+        */
+       priv->mon_vif_idx = hvif.index;
+       priv->vif_slot |= (1 << hvif.index);
+
+       /*
+        * Set the hardware mode to monitor only if there are no
+        * other interfaces.
+        */
+       if (!priv->nvifs)
+               priv->ah->opmode = NL80211_IFTYPE_MONITOR;
+
+       priv->nvifs++;
+
+       /*
+        * Associate a station with the interface for packet injection.
+        */
+       memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
+
+       memcpy(&tsta.macaddr, common->macaddr, ETH_ALEN);
+
+       tsta.is_vif_sta = 1;
+       tsta.sta_index = sta_idx;
+       tsta.vif_index = hvif.index;
+       tsta.maxampdu = cpu_to_be16(0xffff);
+
+       WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
+       if (ret) {
+               ath_err(common, "Unable to add station entry for monitor mode\n");
+               goto err_sta;
+       }
+
+       priv->sta_slot |= (1 << sta_idx);
+       priv->nstations++;
+       priv->vif_sta_pos[priv->mon_vif_idx] = sta_idx;
+       priv->ah->is_monitoring = true;
+
+       ath_dbg(common, CONFIG,
+               "Attached a monitor interface at idx: %d, sta idx: %d\n",
+               priv->mon_vif_idx, sta_idx);
+
+       return 0;
+
+err_sta:
+       /*
+        * Remove the interface from the target.
+        */
+       __ath9k_htc_remove_monitor_interface(priv);
+err_vif:
+       ath_dbg(common, FATAL, "Unable to attach a monitor interface\n");
+
+       return ret;
+}
+
+static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       int ret = 0;
+       u8 cmd_rsp, sta_idx;
+
+       __ath9k_htc_remove_monitor_interface(priv);
+
+       sta_idx = priv->vif_sta_pos[priv->mon_vif_idx];
+
+       WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
+       if (ret) {
+               ath_err(common, "Unable to remove station entry for monitor mode\n");
+               return ret;
+       }
+
+       priv->sta_slot &= ~(1 << sta_idx);
+       priv->nstations--;
+       priv->ah->is_monitoring = false;
+
+       ath_dbg(common, CONFIG,
+               "Removed a monitor interface at idx: %d, sta idx: %d\n",
+               priv->mon_vif_idx, sta_idx);
+
+       return 0;
+}
+
+static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
+                                struct ieee80211_vif *vif,
+                                struct ieee80211_sta *sta)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_sta tsta;
+       struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
+       struct ath9k_htc_sta *ista;
+       int ret, sta_idx;
+       u8 cmd_rsp;
+       u16 maxampdu;
+
+       if (priv->nstations >= ATH9K_HTC_MAX_STA)
+               return -ENOBUFS;
+
+       sta_idx = ffz(priv->sta_slot);
+       if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA))
+               return -ENOBUFS;
+
+       memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
+
+       if (sta) {
+               ista = (struct ath9k_htc_sta *) sta->drv_priv;
+               memcpy(&tsta.macaddr, sta->addr, ETH_ALEN);
+               memcpy(&tsta.bssid, common->curbssid, ETH_ALEN);
+               ista->index = sta_idx;
+               tsta.is_vif_sta = 0;
+               maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+                                sta->ht_cap.ampdu_factor);
+               tsta.maxampdu = cpu_to_be16(maxampdu);
+       } else {
+               memcpy(&tsta.macaddr, vif->addr, ETH_ALEN);
+               tsta.is_vif_sta = 1;
+               tsta.maxampdu = cpu_to_be16(0xffff);
+       }
+
+       tsta.sta_index = sta_idx;
+       tsta.vif_index = avp->index;
+
+       WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
+       if (ret) {
+               if (sta)
+                       ath_err(common,
+                               "Unable to add station entry for: %pM\n",
+                               sta->addr);
+               return ret;
+       }
+
+       if (sta) {
+               ath_dbg(common, CONFIG,
+                       "Added a station entry for: %pM (idx: %d)\n",
+                       sta->addr, tsta.sta_index);
+       } else {
+               ath_dbg(common, CONFIG,
+                       "Added a station entry for VIF %d (idx: %d)\n",
+                       avp->index, tsta.sta_index);
+       }
+
+       priv->sta_slot |= (1 << sta_idx);
+       priv->nstations++;
+       if (!sta)
+               priv->vif_sta_pos[avp->index] = sta_idx;
+
+       return 0;
+}
+
+static int ath9k_htc_remove_station(struct ath9k_htc_priv *priv,
+                                   struct ieee80211_vif *vif,
+                                   struct ieee80211_sta *sta)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
+       struct ath9k_htc_sta *ista;
+       int ret;
+       u8 cmd_rsp, sta_idx;
+
+       if (sta) {
+               ista = (struct ath9k_htc_sta *) sta->drv_priv;
+               sta_idx = ista->index;
+       } else {
+               sta_idx = priv->vif_sta_pos[avp->index];
+       }
+
+       WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
+       if (ret) {
+               if (sta)
+                       ath_err(common,
+                               "Unable to remove station entry for: %pM\n",
+                               sta->addr);
+               return ret;
+       }
+
+       if (sta) {
+               ath_dbg(common, CONFIG,
+                       "Removed a station entry for: %pM (idx: %d)\n",
+                       sta->addr, sta_idx);
+       } else {
+               ath_dbg(common, CONFIG,
+                       "Removed a station entry for VIF %d (idx: %d)\n",
+                       avp->index, sta_idx);
+       }
+
+       priv->sta_slot &= ~(1 << sta_idx);
+       priv->nstations--;
+
+       return 0;
+}
+
+int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
+                               u8 enable_coex)
+{
+       struct ath9k_htc_cap_target tcap;
+       int ret;
+       u8 cmd_rsp;
+
+       memset(&tcap, 0, sizeof(struct ath9k_htc_cap_target));
+
+       tcap.ampdu_limit = cpu_to_be32(0xffff);
+       tcap.ampdu_subframes = 0xff;
+       tcap.enable_coex = enable_coex;
+       tcap.tx_chainmask = priv->ah->caps.tx_chainmask;
+
+       WMI_CMD_BUF(WMI_TARGET_IC_UPDATE_CMDID, &tcap);
+
+       return ret;
+}
+
+static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
+                                struct ieee80211_sta *sta,
+                                struct ath9k_htc_target_rate *trate)
+{
+       struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
+       struct ieee80211_supported_band *sband;
+       u32 caps = 0;
+       int i, j;
+
+       sband = priv->hw->wiphy->bands[priv->hw->conf.chandef.chan->band];
+
+       for (i = 0, j = 0; i < sband->n_bitrates; i++) {
+               if (sta->supp_rates[sband->band] & BIT(i)) {
+                       trate->rates.legacy_rates.rs_rates[j]
+                               = (sband->bitrates[i].bitrate * 2) / 10;
+                       j++;
+               }
+       }
+       trate->rates.legacy_rates.rs_nrates = j;
+
+       if (sta->ht_cap.ht_supported) {
+               for (i = 0, j = 0; i < 77; i++) {
+                       if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
+                               trate->rates.ht_rates.rs_rates[j++] = i;
+                       if (j == ATH_HTC_RATE_MAX)
+                               break;
+               }
+               trate->rates.ht_rates.rs_nrates = j;
+
+               caps = WLAN_RC_HT_FLAG;
+               if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)
+                       caps |= ATH_RC_TX_STBC_FLAG;
+               if (sta->ht_cap.mcs.rx_mask[1])
+                       caps |= WLAN_RC_DS_FLAG;
+               if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+                    (conf_is_ht40(&priv->hw->conf)))
+                       caps |= WLAN_RC_40_FLAG;
+               if (conf_is_ht40(&priv->hw->conf) &&
+                   (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
+                       caps |= WLAN_RC_SGI_FLAG;
+               else if (conf_is_ht20(&priv->hw->conf) &&
+                        (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20))
+                       caps |= WLAN_RC_SGI_FLAG;
+       }
+
+       trate->sta_index = ista->index;
+       trate->isnew = 1;
+       trate->capflags = cpu_to_be32(caps);
+}
+
+static int ath9k_htc_send_rate_cmd(struct ath9k_htc_priv *priv,
+                                   struct ath9k_htc_target_rate *trate)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       int ret;
+       u8 cmd_rsp;
+
+       WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, trate);
+       if (ret) {
+               ath_err(common,
+                       "Unable to initialize Rate information on target\n");
+       }
+
+       return ret;
+}
+
+static void ath9k_htc_init_rate(struct ath9k_htc_priv *priv,
+                               struct ieee80211_sta *sta)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_rate trate;
+       int ret;
+
+       memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
+       ath9k_htc_setup_rate(priv, sta, &trate);
+       ret = ath9k_htc_send_rate_cmd(priv, &trate);
+       if (!ret)
+               ath_dbg(common, CONFIG,
+                       "Updated target sta: %pM, rate caps: 0x%X\n",
+                       sta->addr, be32_to_cpu(trate.capflags));
+}
+
+static void ath9k_htc_update_rate(struct ath9k_htc_priv *priv,
+                                 struct ieee80211_vif *vif,
+                                 struct ieee80211_bss_conf *bss_conf)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_rate trate;
+       struct ieee80211_sta *sta;
+       int ret;
+
+       memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
+
+       rcu_read_lock();
+       sta = ieee80211_find_sta(vif, bss_conf->bssid);
+       if (!sta) {
+               rcu_read_unlock();
+               return;
+       }
+       ath9k_htc_setup_rate(priv, sta, &trate);
+       rcu_read_unlock();
+
+       ret = ath9k_htc_send_rate_cmd(priv, &trate);
+       if (!ret)
+               ath_dbg(common, CONFIG,
+                       "Updated target sta: %pM, rate caps: 0x%X\n",
+                       bss_conf->bssid, be32_to_cpu(trate.capflags));
+}
+
+static int ath9k_htc_tx_aggr_oper(struct ath9k_htc_priv *priv,
+                                 struct ieee80211_vif *vif,
+                                 struct ieee80211_sta *sta,
+                                 enum ieee80211_ampdu_mlme_action action,
+                                 u16 tid)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_aggr aggr;
+       struct ath9k_htc_sta *ista;
+       int ret = 0;
+       u8 cmd_rsp;
+
+       if (tid >= ATH9K_HTC_MAX_TID)
+               return -EINVAL;
+
+       memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr));
+       ista = (struct ath9k_htc_sta *) sta->drv_priv;
+
+       aggr.sta_index = ista->index;
+       aggr.tidno = tid & 0xf;
+       aggr.aggr_enable = (action == IEEE80211_AMPDU_TX_START) ? true : false;
+
+       WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr);
+       if (ret)
+               ath_dbg(common, CONFIG,
+                       "Unable to %s TX aggregation for (%pM, %d)\n",
+                       (aggr.aggr_enable) ? "start" : "stop", sta->addr, tid);
+       else
+               ath_dbg(common, CONFIG,
+                       "%s TX aggregation for (%pM, %d)\n",
+                       (aggr.aggr_enable) ? "Starting" : "Stopping",
+                       sta->addr, tid);
+
+       spin_lock_bh(&priv->tx.tx_lock);
+       ista->tid_state[tid] = (aggr.aggr_enable && !ret) ? AGGR_START : AGGR_STOP;
+       spin_unlock_bh(&priv->tx.tx_lock);
+
+       return ret;
+}
+
+/*******/
+/* ANI */
+/*******/
+
+void ath9k_htc_start_ani(struct ath9k_htc_priv *priv)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       unsigned long timestamp = jiffies_to_msecs(jiffies);
+
+       common->ani.longcal_timer = timestamp;
+       common->ani.shortcal_timer = timestamp;
+       common->ani.checkani_timer = timestamp;
+
+       set_bit(ATH_OP_ANI_RUN, &common->op_flags);
+
+       ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
+                                    msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
+}
+
+void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       cancel_delayed_work_sync(&priv->ani_work);
+       clear_bit(ATH_OP_ANI_RUN, &common->op_flags);
+}
+
+void ath9k_htc_ani_work(struct work_struct *work)
+{
+       struct ath9k_htc_priv *priv =
+               container_of(work, struct ath9k_htc_priv, ani_work.work);
+       struct ath_hw *ah = priv->ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+       bool longcal = false;
+       bool shortcal = false;
+       bool aniflag = false;
+       unsigned int timestamp = jiffies_to_msecs(jiffies);
+       u32 cal_interval, short_cal_interval;
+
+       short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
+               ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
+
+       /* Only calibrate if awake */
+       if (ah->power_mode != ATH9K_PM_AWAKE)
+               goto set_timer;
+
+       /* Long calibration runs independently of short calibration. */
+       if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
+               longcal = true;
+               ath_dbg(common, ANI, "longcal @%lu\n", jiffies);
+               common->ani.longcal_timer = timestamp;
+       }
+
+       /* Short calibration applies only while caldone is false */
+       if (!common->ani.caldone) {
+               if ((timestamp - common->ani.shortcal_timer) >=
+                   short_cal_interval) {
+                       shortcal = true;
+                       ath_dbg(common, ANI, "shortcal @%lu\n", jiffies);
+                       common->ani.shortcal_timer = timestamp;
+                       common->ani.resetcal_timer = timestamp;
+               }
+       } else {
+               if ((timestamp - common->ani.resetcal_timer) >=
+                   ATH_RESTART_CALINTERVAL) {
+                       common->ani.caldone = ath9k_hw_reset_calvalid(ah);
+                       if (common->ani.caldone)
+                               common->ani.resetcal_timer = timestamp;
+               }
+       }
+
+       /* Verify whether we must check ANI */
+       if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
+               aniflag = true;
+               common->ani.checkani_timer = timestamp;
+       }
+
+       /* Skip all processing if there's nothing to do. */
+       if (longcal || shortcal || aniflag) {
+
+               ath9k_htc_ps_wakeup(priv);
+
+               /* Call ANI routine if necessary */
+               if (aniflag)
+                       ath9k_hw_ani_monitor(ah, ah->curchan);
+
+               /* Perform calibration if necessary */
+               if (longcal || shortcal)
+                       common->ani.caldone =
+                               ath9k_hw_calibrate(ah, ah->curchan,
+                                                  ah->rxchainmask, longcal);
+
+               ath9k_htc_ps_restore(priv);
+       }
+
+set_timer:
+       /*
+       * Set timer interval based on previous results.
+       * The interval must be the shortest necessary to satisfy ANI,
+       * short calibration and long calibration.
+       */
+       cal_interval = ATH_LONG_CALINTERVAL;
+       cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
+       if (!common->ani.caldone)
+               cal_interval = min(cal_interval, (u32)short_cal_interval);
+
+       ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
+                                    msecs_to_jiffies(cal_interval));
+}
+
+/**********************/
+/* mac80211 Callbacks */
+/**********************/
+
+static void ath9k_htc_tx(struct ieee80211_hw *hw,
+                        struct ieee80211_tx_control *control,
+                        struct sk_buff *skb)
+{
+       struct ieee80211_hdr *hdr;
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       int padpos, padsize, ret, slot;
+
+       hdr = (struct ieee80211_hdr *) skb->data;
+
+       /* Add the padding after the header if this is not already done */
+       padpos = ieee80211_hdrlen(hdr->frame_control);
+       padsize = padpos & 3;
+       if (padsize && skb->len > padpos) {
+               if (skb_headroom(skb) < padsize) {
+                       ath_dbg(common, XMIT, "No room for padding\n");
+                       goto fail_tx;
+               }
+               skb_push(skb, padsize);
+               memmove(skb->data, skb->data + padsize, padpos);
+       }
+
+       slot = ath9k_htc_tx_get_slot(priv);
+       if (slot < 0) {
+               ath_dbg(common, XMIT, "No free TX slot\n");
+               goto fail_tx;
+       }
+
+       ret = ath9k_htc_tx_start(priv, control->sta, skb, slot, false);
+       if (ret != 0) {
+               ath_dbg(common, XMIT, "Tx failed\n");
+               goto clear_slot;
+       }
+
+       ath9k_htc_check_stop_queues(priv);
+
+       return;
+
+clear_slot:
+       ath9k_htc_tx_clear_slot(priv, slot);
+fail_tx:
+       dev_kfree_skb_any(skb);
+}
+
+static int ath9k_htc_start(struct ieee80211_hw *hw)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_hw *ah = priv->ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+       struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+       struct ath9k_channel *init_channel;
+       int ret = 0;
+       enum htc_phymode mode;
+       __be16 htc_mode;
+       u8 cmd_rsp;
+
+       mutex_lock(&priv->mutex);
+
+       ath_dbg(common, CONFIG,
+               "Starting driver with initial channel: %d MHz\n",
+               curchan->center_freq);
+
+       /* Ensure that HW is awake before flushing RX */
+       ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
+       WMI_CMD(WMI_FLUSH_RECV_CMDID);
+
+       /* setup initial channel */
+       init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
+
+       ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
+       if (ret) {
+               ath_err(common,
+                       "Unable to reset hardware; reset status %d (freq %u MHz)\n",
+                       ret, curchan->center_freq);
+               mutex_unlock(&priv->mutex);
+               return ret;
+       }
+
+       ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
+                              &priv->curtxpow);
+
+       mode = ath9k_htc_get_curmode(priv, init_channel);
+       htc_mode = cpu_to_be16(mode);
+       WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
+       WMI_CMD(WMI_ATH_INIT_CMDID);
+       WMI_CMD(WMI_START_RECV_CMDID);
+
+       ath9k_host_rx_init(priv);
+
+       ret = ath9k_htc_update_cap_target(priv, 0);
+       if (ret)
+               ath_dbg(common, CONFIG,
+                       "Failed to update capability in target\n");
+
+       clear_bit(ATH_OP_INVALID, &common->op_flags);
+       htc_start(priv->htc);
+
+       spin_lock_bh(&priv->tx.tx_lock);
+       priv->tx.flags &= ~ATH9K_HTC_OP_TX_QUEUES_STOP;
+       spin_unlock_bh(&priv->tx.tx_lock);
+
+       ieee80211_wake_queues(hw);
+
+       mod_timer(&priv->tx.cleanup_timer,
+                 jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
+
+       ath9k_htc_start_btcoex(priv);
+
+       mutex_unlock(&priv->mutex);
+
+       return ret;
+}
+
+static void ath9k_htc_stop(struct ieee80211_hw *hw)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_hw *ah = priv->ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+       int ret __attribute__ ((unused));
+       u8 cmd_rsp;
+
+       mutex_lock(&priv->mutex);
+
+       if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
+               ath_dbg(common, ANY, "Device not present\n");
+               mutex_unlock(&priv->mutex);
+               return;
+       }
+
+       ath9k_htc_ps_wakeup(priv);
+
+       WMI_CMD(WMI_DISABLE_INTR_CMDID);
+       WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
+       WMI_CMD(WMI_STOP_RECV_CMDID);
+
+       tasklet_kill(&priv->rx_tasklet);
+
+       del_timer_sync(&priv->tx.cleanup_timer);
+       ath9k_htc_tx_drain(priv);
+       ath9k_wmi_event_drain(priv);
+
+       mutex_unlock(&priv->mutex);
+
+       /* Cancel all the running timers/work .. */
+       cancel_work_sync(&priv->fatal_work);
+       cancel_work_sync(&priv->ps_work);
+
+#ifdef CONFIG_MAC80211_LEDS
+       cancel_work_sync(&priv->led_work);
+#endif
+       ath9k_htc_stop_ani(priv);
+
+       mutex_lock(&priv->mutex);
+
+       ath9k_htc_stop_btcoex(priv);
+
+       /* Remove a monitor interface if it's present. */
+       if (priv->ah->is_monitoring)
+               ath9k_htc_remove_monitor_interface(priv);
+
+       ath9k_hw_phy_disable(ah);
+       ath9k_hw_disable(ah);
+       ath9k_htc_ps_restore(priv);
+       ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
+
+       set_bit(ATH_OP_INVALID, &common->op_flags);
+
+       ath_dbg(common, CONFIG, "Driver halt\n");
+       mutex_unlock(&priv->mutex);
+}
+
+static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
+                                  struct ieee80211_vif *vif)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_vif hvif;
+       int ret = 0;
+       u8 cmd_rsp;
+
+       mutex_lock(&priv->mutex);
+
+       ath9k_htc_ps_wakeup(priv);
+       memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
+       memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
+
+       switch (vif->type) {
+       case NL80211_IFTYPE_STATION:
+               hvif.opmode = HTC_M_STA;
+               break;
+       case NL80211_IFTYPE_ADHOC:
+               hvif.opmode = HTC_M_IBSS;
+               break;
+       case NL80211_IFTYPE_AP:
+               hvif.opmode = HTC_M_HOSTAP;
+               break;
+       case NL80211_IFTYPE_MESH_POINT:
+               hvif.opmode = HTC_M_WDS;        /* close enough */
+               break;
+       default:
+               ath_err(common,
+                       "Interface type %d not yet supported\n", vif->type);
+               ret = -EOPNOTSUPP;
+               goto out;
+       }
+
+       /* Index starts from zero on the target */
+       avp->index = hvif.index = ffz(priv->vif_slot);
+       hvif.rtsthreshold = cpu_to_be16(2304);
+       WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
+       if (ret)
+               goto out;
+
+       /*
+        * We need a node in target to tx mgmt frames
+        * before association.
+        */
+       ret = ath9k_htc_add_station(priv, vif, NULL);
+       if (ret) {
+               WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
+               goto out;
+       }
+
+       ath9k_htc_set_mac_bssid_mask(priv, vif);
+
+       priv->vif_slot |= (1 << avp->index);
+       priv->nvifs++;
+
+       INC_VIF(priv, vif->type);
+
+       if ((vif->type == NL80211_IFTYPE_AP) ||
+           (vif->type == NL80211_IFTYPE_MESH_POINT) ||
+           (vif->type == NL80211_IFTYPE_ADHOC))
+               ath9k_htc_assign_bslot(priv, vif);
+
+       ath9k_htc_set_opmode(priv);
+
+       if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
+           !test_bit(ATH_OP_ANI_RUN, &common->op_flags)) {
+               ath9k_hw_set_tsfadjust(priv->ah, true);
+               ath9k_htc_start_ani(priv);
+       }
+
+       ath_dbg(common, CONFIG, "Attach a VIF of type: %d at idx: %d\n",
+               vif->type, avp->index);
+
+out:
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+
+       return ret;
+}
+
+static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
+                                      struct ieee80211_vif *vif)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
+       struct ath9k_htc_target_vif hvif;
+       int ret = 0;
+       u8 cmd_rsp;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
+       memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
+       hvif.index = avp->index;
+       WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
+       if (ret) {
+               ath_err(common, "Unable to remove interface at idx: %d\n",
+                       avp->index);
+       }
+       priv->nvifs--;
+       priv->vif_slot &= ~(1 << avp->index);
+
+       ath9k_htc_remove_station(priv, vif, NULL);
+
+       DEC_VIF(priv, vif->type);
+
+       if ((vif->type == NL80211_IFTYPE_AP) ||
+            vif->type == NL80211_IFTYPE_MESH_POINT ||
+           (vif->type == NL80211_IFTYPE_ADHOC))
+               ath9k_htc_remove_bslot(priv, vif);
+
+       ath9k_htc_set_opmode(priv);
+
+       ath9k_htc_set_mac_bssid_mask(priv, vif);
+
+       /*
+        * Stop ANI only if there are no associated station interfaces.
+        */
+       if ((vif->type == NL80211_IFTYPE_AP) && (priv->num_ap_vif == 0)) {
+               priv->rearm_ani = false;
+               ieee80211_iterate_active_interfaces_atomic(
+                       priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+                       ath9k_htc_vif_iter, priv);
+               if (!priv->rearm_ani)
+                       ath9k_htc_stop_ani(priv);
+       }
+
+       ath_dbg(common, CONFIG, "Detach Interface at idx: %d\n", avp->index);
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ieee80211_conf *conf = &hw->conf;
+       bool chip_reset = false;
+       int ret = 0;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+               mutex_lock(&priv->htc_pm_lock);
+
+               priv->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
+               if (!priv->ps_idle)
+                       chip_reset = true;
+
+               mutex_unlock(&priv->htc_pm_lock);
+       }
+
+       /*
+        * Monitor interface should be added before
+        * IEEE80211_CONF_CHANGE_CHANNEL is handled.
+        */
+       if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+               if ((conf->flags & IEEE80211_CONF_MONITOR) &&
+                   !priv->ah->is_monitoring)
+                       ath9k_htc_add_monitor_interface(priv);
+               else if (priv->ah->is_monitoring)
+                       ath9k_htc_remove_monitor_interface(priv);
+       }
+
+       if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || chip_reset) {
+               struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+               int pos = curchan->hw_value;
+
+               ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
+                       curchan->center_freq);
+
+               ath9k_cmn_get_channel(hw, priv->ah, &hw->conf.chandef);
+               if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
+                       ath_err(common, "Unable to set channel\n");
+                       ret = -EINVAL;
+                       goto out;
+               }
+
+       }
+
+       if (changed & IEEE80211_CONF_CHANGE_PS) {
+               if (conf->flags & IEEE80211_CONF_PS) {
+                       ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
+                       priv->ps_enabled = true;
+               } else {
+                       priv->ps_enabled = false;
+                       cancel_work_sync(&priv->ps_work);
+                       ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
+               }
+       }
+
+       if (changed & IEEE80211_CONF_CHANGE_POWER) {
+               priv->txpowlimit = 2 * conf->power_level;
+               ath9k_cmn_update_txpow(priv->ah, priv->curtxpow,
+                                      priv->txpowlimit, &priv->curtxpow);
+       }
+
+out:
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+       return ret;
+}
+
+#define SUPPORTED_FILTERS                      \
+       (FIF_PROMISC_IN_BSS |                   \
+       FIF_ALLMULTI |                          \
+       FIF_CONTROL |                           \
+       FIF_PSPOLL |                            \
+       FIF_OTHER_BSS |                         \
+       FIF_BCN_PRBRESP_PROMISC |               \
+       FIF_PROBE_REQ |                         \
+       FIF_FCSFAIL)
+
+static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
+                                      unsigned int changed_flags,
+                                      unsigned int *total_flags,
+                                      u64 multicast)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       u32 rfilt;
+
+       mutex_lock(&priv->mutex);
+       changed_flags &= SUPPORTED_FILTERS;
+       *total_flags &= SUPPORTED_FILTERS;
+
+       if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
+               ath_dbg(ath9k_hw_common(priv->ah), ANY,
+                       "Unable to configure filter on invalid state\n");
+               mutex_unlock(&priv->mutex);
+               return;
+       }
+       ath9k_htc_ps_wakeup(priv);
+
+       priv->rxfilter = *total_flags;
+       rfilt = ath9k_htc_calcrxfilter(priv);
+       ath9k_hw_setrxfilter(priv->ah, rfilt);
+
+       ath_dbg(ath9k_hw_common(priv->ah), CONFIG, "Set HW RX filter: 0x%x\n",
+               rfilt);
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static void ath9k_htc_sta_rc_update_work(struct work_struct *work)
+{
+       struct ath9k_htc_sta *ista =
+           container_of(work, struct ath9k_htc_sta, rc_update_work);
+       struct ieee80211_sta *sta =
+           container_of((void *)ista, struct ieee80211_sta, drv_priv);
+       struct ath9k_htc_priv *priv = ista->htc_priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_rate trate;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
+       ath9k_htc_setup_rate(priv, sta, &trate);
+       if (!ath9k_htc_send_rate_cmd(priv, &trate))
+               ath_dbg(common, CONFIG,
+                       "Supported rates for sta: %pM updated, rate caps: 0x%X\n",
+                       sta->addr, be32_to_cpu(trate.capflags));
+       else
+               ath_dbg(common, CONFIG,
+                       "Unable to update supported rates for sta: %pM\n",
+                       sta->addr);
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static int ath9k_htc_sta_add(struct ieee80211_hw *hw,
+                            struct ieee80211_vif *vif,
+                            struct ieee80211_sta *sta)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
+       int ret;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+       ret = ath9k_htc_add_station(priv, vif, sta);
+       if (!ret) {
+               INIT_WORK(&ista->rc_update_work, ath9k_htc_sta_rc_update_work);
+               ista->htc_priv = priv;
+               ath9k_htc_init_rate(priv, sta);
+       }
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+
+       return ret;
+}
+
+static int ath9k_htc_sta_remove(struct ieee80211_hw *hw,
+                               struct ieee80211_vif *vif,
+                               struct ieee80211_sta *sta)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
+       int ret;
+
+       cancel_work_sync(&ista->rc_update_work);
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+       htc_sta_drain(priv->htc, ista->index);
+       ret = ath9k_htc_remove_station(priv, vif, sta);
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+
+       return ret;
+}
+
+static void ath9k_htc_sta_rc_update(struct ieee80211_hw *hw,
+                                   struct ieee80211_vif *vif,
+                                   struct ieee80211_sta *sta, u32 changed)
+{
+       struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
+
+       if (!(changed & IEEE80211_RC_SUPP_RATES_CHANGED))
+               return;
+
+       schedule_work(&ista->rc_update_work);
+}
+
+static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
+                            struct ieee80211_vif *vif, u16 queue,
+                            const struct ieee80211_tx_queue_params *params)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_tx_queue_info qi;
+       int ret = 0, qnum;
+
+       if (queue >= IEEE80211_NUM_ACS)
+               return 0;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
+
+       qi.tqi_aifs = params->aifs;
+       qi.tqi_cwmin = params->cw_min;
+       qi.tqi_cwmax = params->cw_max;
+       qi.tqi_burstTime = params->txop * 32;
+
+       qnum = get_hw_qnum(queue, priv->hwq_map);
+
+       ath_dbg(common, CONFIG,
+               "Configure tx [queue/hwq] [%d/%d],  aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
+               queue, qnum, params->aifs, params->cw_min,
+               params->cw_max, params->txop);
+
+       ret = ath_htc_txq_update(priv, qnum, &qi);
+       if (ret) {
+               ath_err(common, "TXQ Update failed\n");
+               goto out;
+       }
+
+       if ((priv->ah->opmode == NL80211_IFTYPE_ADHOC) &&
+           (qnum == priv->hwq_map[IEEE80211_AC_BE]))
+                   ath9k_htc_beaconq_config(priv);
+out:
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+
+       return ret;
+}
+
+static int ath9k_htc_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 ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       int ret = 0;
+
+       if (htc_modparam_nohwcrypt)
+               return -ENOSPC;
+
+       if ((vif->type == NL80211_IFTYPE_ADHOC ||
+            vif->type == NL80211_IFTYPE_MESH_POINT) &&
+           (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
+            key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
+           !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+               /*
+                * For now, disable hw crypto for the RSN IBSS group keys. This
+                * could be optimized in the future to use a modified key cache
+                * design to support per-STA RX GTK, but until that gets
+                * implemented, use of software crypto for group addressed
+                * frames is a acceptable to allow RSN IBSS to be used.
+                */
+               return -EOPNOTSUPP;
+       }
+
+       mutex_lock(&priv->mutex);
+       ath_dbg(common, CONFIG, "Set HW Key\n");
+       ath9k_htc_ps_wakeup(priv);
+
+       switch (cmd) {
+       case SET_KEY:
+               ret = ath_key_config(common, vif, sta, key);
+               if (ret >= 0) {
+                       key->hw_key_idx = ret;
+                       /* push IV and Michael MIC generation to stack */
+                       key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+                       if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
+                               key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+                       if (priv->ah->sw_mgmt_crypto_tx &&
+                           key->cipher == WLAN_CIPHER_SUITE_CCMP)
+                               key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+                       ret = 0;
+               }
+               break;
+       case DISABLE_KEY:
+               ath_key_delete(common, key);
+               break;
+       default:
+               ret = -EINVAL;
+       }
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+
+       return ret;
+}
+
+static void ath9k_htc_set_bssid(struct ath9k_htc_priv *priv)
+{
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+
+       ath9k_hw_write_associd(priv->ah);
+       ath_dbg(common, CONFIG, "BSSID: %pM aid: 0x%x\n",
+               common->curbssid, common->curaid);
+}
+
+static void ath9k_htc_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+       struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+
+       if ((vif->type == NL80211_IFTYPE_STATION) && bss_conf->assoc) {
+               common->curaid = bss_conf->aid;
+               common->last_rssi = ATH_RSSI_DUMMY_MARKER;
+               memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
+               set_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
+       }
+}
+
+static void ath9k_htc_choose_set_bssid(struct ath9k_htc_priv *priv)
+{
+       if (priv->num_sta_assoc_vif == 1) {
+               ieee80211_iterate_active_interfaces_atomic(
+                       priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+                       ath9k_htc_bss_iter, priv);
+               ath9k_htc_set_bssid(priv);
+       }
+}
+
+static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
+                                      struct ieee80211_vif *vif,
+                                      struct ieee80211_bss_conf *bss_conf,
+                                      u32 changed)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_hw *ah = priv->ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+       int slottime;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       if (changed & BSS_CHANGED_ASSOC) {
+               ath_dbg(common, CONFIG, "BSS Changed ASSOC %d\n",
+                       bss_conf->assoc);
+
+               bss_conf->assoc ?
+                       priv->num_sta_assoc_vif++ : priv->num_sta_assoc_vif--;
+
+               if (!bss_conf->assoc)
+                       clear_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
+
+               if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
+                       ath9k_htc_choose_set_bssid(priv);
+                       if (bss_conf->assoc && (priv->num_sta_assoc_vif == 1))
+                               ath9k_htc_start_ani(priv);
+                       else if (priv->num_sta_assoc_vif == 0)
+                               ath9k_htc_stop_ani(priv);
+               }
+       }
+
+       if (changed & BSS_CHANGED_IBSS) {
+               if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) {
+                       common->curaid = bss_conf->aid;
+                       memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
+                       ath9k_htc_set_bssid(priv);
+               }
+       }
+
+       if ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon) {
+               ath_dbg(common, CONFIG, "Beacon enabled for BSS: %pM\n",
+                       bss_conf->bssid);
+               ath9k_htc_set_tsfadjust(priv, vif);
+               priv->cur_beacon_conf.enable_beacon = 1;
+               ath9k_htc_beacon_config(priv, vif);
+       }
+
+       if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
+               /*
+                * Disable SWBA interrupt only if there are no
+                * concurrent AP/mesh or IBSS interfaces.
+                */
+               if ((priv->num_ap_vif + priv->num_mbss_vif <= 1) ||
+                    priv->num_ibss_vif) {
+                       ath_dbg(common, CONFIG,
+                               "Beacon disabled for BSS: %pM\n",
+                               bss_conf->bssid);
+                       priv->cur_beacon_conf.enable_beacon = 0;
+                       ath9k_htc_beacon_config(priv, vif);
+               }
+       }
+
+       if (changed & BSS_CHANGED_BEACON_INT) {
+               /*
+                * Reset the HW TSF for the first AP or mesh interface.
+                */
+               if (priv->nvifs == 1 &&
+                   ((priv->ah->opmode == NL80211_IFTYPE_AP &&
+                     vif->type == NL80211_IFTYPE_AP &&
+                     priv->num_ap_vif == 1) ||
+                   (priv->ah->opmode == NL80211_IFTYPE_MESH_POINT &&
+                     vif->type == NL80211_IFTYPE_MESH_POINT &&
+                     priv->num_mbss_vif == 1))) {
+                       set_bit(OP_TSF_RESET, &priv->op_flags);
+               }
+               ath_dbg(common, CONFIG,
+                       "Beacon interval changed for BSS: %pM\n",
+                       bss_conf->bssid);
+               ath9k_htc_beacon_config(priv, vif);
+       }
+
+       if (changed & BSS_CHANGED_ERP_SLOT) {
+               if (bss_conf->use_short_slot)
+                       slottime = 9;
+               else
+                       slottime = 20;
+               if (vif->type == NL80211_IFTYPE_AP) {
+                       /*
+                        * Defer update, so that connected stations can adjust
+                        * their settings at the same time.
+                        * See beacon.c for more details
+                        */
+                       priv->beacon.slottime = slottime;
+                       priv->beacon.updateslot = UPDATE;
+               } else {
+                       ah->slottime = slottime;
+                       ath9k_hw_init_global_settings(ah);
+               }
+       }
+
+       if (changed & BSS_CHANGED_HT)
+               ath9k_htc_update_rate(priv, vif, bss_conf);
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw,
+                            struct ieee80211_vif *vif)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       u64 tsf;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+       tsf = ath9k_hw_gettsf64(priv->ah);
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+
+       return tsf;
+}
+
+static void ath9k_htc_set_tsf(struct ieee80211_hw *hw,
+                             struct ieee80211_vif *vif, u64 tsf)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+       ath9k_hw_settsf64(priv->ah, tsf);
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw,
+                               struct ieee80211_vif *vif)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+       ath9k_hw_reset_tsf(priv->ah);
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static int ath9k_htc_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 ath9k_htc_priv *priv = hw->priv;
+       struct ath9k_htc_sta *ista;
+       int ret = 0;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       switch (action) {
+       case IEEE80211_AMPDU_RX_START:
+               break;
+       case IEEE80211_AMPDU_RX_STOP:
+               break;
+       case IEEE80211_AMPDU_TX_START:
+               ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
+               if (!ret)
+                       ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+               break;
+       case IEEE80211_AMPDU_TX_STOP_CONT:
+       case IEEE80211_AMPDU_TX_STOP_FLUSH:
+       case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+               ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
+               ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+               break;
+       case IEEE80211_AMPDU_TX_OPERATIONAL:
+               ista = (struct ath9k_htc_sta *) sta->drv_priv;
+               spin_lock_bh(&priv->tx.tx_lock);
+               ista->tid_state[tid] = AGGR_OPERATIONAL;
+               spin_unlock_bh(&priv->tx.tx_lock);
+               break;
+       default:
+               ath_err(ath9k_hw_common(priv->ah), "Unknown AMPDU action\n");
+       }
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+
+       return ret;
+}
+
+static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw,
+                                   struct ieee80211_vif *vif,
+                                   const u8 *mac_addr)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+
+       mutex_lock(&priv->mutex);
+       spin_lock_bh(&priv->beacon_lock);
+       set_bit(ATH_OP_SCANNING, &common->op_flags);
+       spin_unlock_bh(&priv->beacon_lock);
+       cancel_work_sync(&priv->ps_work);
+       ath9k_htc_stop_ani(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw,
+                                      struct ieee80211_vif *vif)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+
+       mutex_lock(&priv->mutex);
+       spin_lock_bh(&priv->beacon_lock);
+       clear_bit(ATH_OP_SCANNING, &common->op_flags);
+       spin_unlock_bh(&priv->beacon_lock);
+       ath9k_htc_ps_wakeup(priv);
+       ath9k_htc_vif_reconfig(priv);
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+       return 0;
+}
+
+static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
+                                        s16 coverage_class)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+       priv->ah->coverage_class = coverage_class;
+       ath9k_hw_init_global_settings(priv->ah);
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
+/*
+ * Currently, this is used only for selecting the minimum rate
+ * for management frames, rate selection for data frames remain
+ * unaffected.
+ */
+static int ath9k_htc_set_bitrate_mask(struct ieee80211_hw *hw,
+                                     struct ieee80211_vif *vif,
+                                     const struct cfg80211_bitrate_mask *mask)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_rate_mask tmask;
+       struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
+       int ret = 0;
+       u8 cmd_rsp;
+
+       memset(&tmask, 0, sizeof(struct ath9k_htc_target_rate_mask));
+
+       tmask.vif_index = avp->index;
+       tmask.band = IEEE80211_BAND_2GHZ;
+       tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_2GHZ].legacy);
+
+       WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
+       if (ret) {
+               ath_err(common,
+                       "Unable to set 2G rate mask for "
+                       "interface at idx: %d\n", avp->index);
+               goto out;
+       }
+
+       tmask.band = IEEE80211_BAND_5GHZ;
+       tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_5GHZ].legacy);
+
+       WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
+       if (ret) {
+               ath_err(common,
+                       "Unable to set 5G rate mask for "
+                       "interface at idx: %d\n", avp->index);
+               goto out;
+       }
+
+       ath_dbg(common, CONFIG, "Set bitrate masks: 0x%x, 0x%x\n",
+               mask->control[IEEE80211_BAND_2GHZ].legacy,
+               mask->control[IEEE80211_BAND_5GHZ].legacy);
+out:
+       return ret;
+}
+
+
+static int ath9k_htc_get_stats(struct ieee80211_hw *hw,
+                              struct ieee80211_low_level_stats *stats)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_hw *ah = priv->ah;
+       struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
+
+       stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
+       stats->dot11RTSFailureCount = mib_stats->rts_bad;
+       stats->dot11FCSErrorCount = mib_stats->fcs_bad;
+       stats->dot11RTSSuccessCount = mib_stats->rts_good;
+
+       return 0;
+}
+
+struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv)
+{
+       struct base_eep_header *pBase = NULL;
+       /*
+        * This can be done since all the 3 EEPROM families have the
+        * same base header upto a certain point, and we are interested in
+        * the data only upto that point.
+        */
+
+       if (AR_SREV_9271(priv->ah))
+               pBase = (struct base_eep_header *)
+                       &priv->ah->eeprom.map4k.baseEepHeader;
+       else if (priv->ah->hw_version.usbdev == AR9280_USB)
+               pBase = (struct base_eep_header *)
+                       &priv->ah->eeprom.def.baseEepHeader;
+       else if (priv->ah->hw_version.usbdev == AR9287_USB)
+               pBase = (struct base_eep_header *)
+                       &priv->ah->eeprom.map9287.baseEepHeader;
+       return pBase;
+}
+
+
+static int ath9k_htc_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant,
+                                u32 *rx_ant)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct base_eep_header *pBase = ath9k_htc_get_eeprom_base(priv);
+       if (pBase) {
+               *tx_ant = pBase->txMask;
+               *rx_ant = pBase->rxMask;
+       } else {
+               *tx_ant = 0;
+               *rx_ant = 0;
+       }
+       return 0;
+}
+
+struct ieee80211_ops ath9k_htc_ops = {
+       .tx                 = ath9k_htc_tx,
+       .start              = ath9k_htc_start,
+       .stop               = ath9k_htc_stop,
+       .add_interface      = ath9k_htc_add_interface,
+       .remove_interface   = ath9k_htc_remove_interface,
+       .config             = ath9k_htc_config,
+       .configure_filter   = ath9k_htc_configure_filter,
+       .sta_add            = ath9k_htc_sta_add,
+       .sta_remove         = ath9k_htc_sta_remove,
+       .conf_tx            = ath9k_htc_conf_tx,
+       .sta_rc_update      = ath9k_htc_sta_rc_update,
+       .bss_info_changed   = ath9k_htc_bss_info_changed,
+       .set_key            = ath9k_htc_set_key,
+       .get_tsf            = ath9k_htc_get_tsf,
+       .set_tsf            = ath9k_htc_set_tsf,
+       .reset_tsf          = ath9k_htc_reset_tsf,
+       .ampdu_action       = ath9k_htc_ampdu_action,
+       .sw_scan_start      = ath9k_htc_sw_scan_start,
+       .sw_scan_complete   = ath9k_htc_sw_scan_complete,
+       .set_rts_threshold  = ath9k_htc_set_rts_threshold,
+       .rfkill_poll        = ath9k_htc_rfkill_poll_state,
+       .set_coverage_class = ath9k_htc_set_coverage_class,
+       .set_bitrate_mask   = ath9k_htc_set_bitrate_mask,
+       .get_stats          = ath9k_htc_get_stats,
+       .get_antenna        = ath9k_htc_get_antenna,
+
+#ifdef CONFIG_ATH9K_HTC_DEBUGFS
+       .get_et_sset_count  = ath9k_htc_get_et_sset_count,
+       .get_et_stats       = ath9k_htc_get_et_stats,
+       .get_et_strings     = ath9k_htc_get_et_strings,
+#endif
+};