5 files changed, 218 insertions, 222 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index e8a630ccfd96..f001cc262660 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -458,6 +458,7 @@ struct ath_btcoex {
         unsigned long bt_priority_time;
         u32 btcoex_no_stomp; /* in usec */
         u32 btcoex_period; /* in usec */
+        struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */
 };
 
 /********************/
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c
index be699241ca75..6209a56f7a9a 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.c
+++ b/drivers/net/wireless/ath/ath9k/btcoex.c
@@ -43,144 +43,10 @@ bool ath_btcoex_supported(u16 subsysid)
         return false;
 }
 
-static void ath_btcoex_set_weight(struct ath_btcoex_info *btcoex_info,
-                                  u32 bt_weight,
-                                  u32 wlan_weight)
+void ath9k_hw_init_btcoex_hw_info(struct ath_hw *ah, int qnum)
 {
-        btcoex_info->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) |
-                                       SM(wlan_weight, AR_BTCOEX_WL_WGHT);
-}
-
-void ath9k_hw_btcoex_init_weight(struct ath_hw *ah)
-{
-        ath_btcoex_set_weight(&ah->btcoex_info, AR_BT_COEX_WGHT,
-                              AR_STOMP_LOW_WLAN_WGHT);
-}
-
-/*
- * Detects if there is any priority bt traffic
- */
-static void ath_detect_bt_priority(struct ath_softc *sc)
-{
-        struct ath_btcoex *btcoex = &sc->btcoex;
-        struct ath_hw *ah = sc->sc_ah;
-
-        if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_info.btpriority_gpio))
-                btcoex->bt_priority_cnt++;
-
-        if (time_after(jiffies, btcoex->bt_priority_time +
-                        msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) {
-                if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
-                        DPRINTF(sc->sc_ah, ATH_DBG_BTCOEX,
-                                "BT priority traffic detected");
-                        sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED;
-                } else {
-                        sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED;
-                }
-
-                btcoex->bt_priority_cnt = 0;
-                btcoex->bt_priority_time = jiffies;
-        }
-}
-
-/*
- * Configures appropriate weight based on stomp type.
- */
-static void ath_btcoex_bt_stomp(struct ath_softc *sc,
-                                struct ath_btcoex_info *btinfo,
-                                int stomp_type)
-{
-
-        switch (stomp_type) {
-        case ATH_BTCOEX_STOMP_ALL:
-                ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT,
-                                      AR_STOMP_ALL_WLAN_WGHT);
-                break;
-        case ATH_BTCOEX_STOMP_LOW:
-                ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT,
-                                      AR_STOMP_LOW_WLAN_WGHT);
-                break;
-        case ATH_BTCOEX_STOMP_NONE:
-                ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT,
-                                      AR_STOMP_NONE_WLAN_WGHT);
-                break;
-        default:
-                DPRINTF(sc->sc_ah, ATH_DBG_BTCOEX, "Invalid Stomptype\n");
-                break;
-        }
-
-        ath9k_hw_btcoex_enable(sc->sc_ah);
-}
-
-/*
- * This is the master bt coex timer which runs for every
- * 45ms, bt traffic will be given priority during 55% of this
- * period while wlan gets remaining 45%
- */
-
-static void ath_btcoex_period_timer(unsigned long data)
-{
-        struct ath_softc *sc = (struct ath_softc *) data;
-        struct ath_hw *ah = sc->sc_ah;
-        struct ath_btcoex *btcoex = &sc->btcoex;
-        struct ath_btcoex_info *btinfo = &ah->btcoex_info;
-
-        ath_detect_bt_priority(sc);
-
-        spin_lock_bh(&btcoex->btcoex_lock);
-
-        ath_btcoex_bt_stomp(sc, btinfo, btinfo->bt_stomp_type);
-
-        spin_unlock_bh(&btcoex->btcoex_lock);
-
-        if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) {
-                if (btcoex->hw_timer_enabled)
-                        ath_gen_timer_stop(ah, btinfo->no_stomp_timer);
-
-                ath_gen_timer_start(ah,
-                        btinfo->no_stomp_timer,
-                        (ath9k_hw_gettsf32(sc->sc_ah) +
-                                btcoex->btcoex_no_stomp),
-                                btcoex->btcoex_no_stomp * 10);
-                btcoex->hw_timer_enabled = true;
-        }
-
-        mod_timer(&btcoex->period_timer, jiffies +
-                                  msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD));
-}
-
-/*
- * Generic tsf based hw timer which configures weight
- * registers to time slice between wlan and bt traffic
- */
-
-static void ath_btcoex_no_stomp_timer(void *arg)
-{
-        struct ath_softc *sc = (struct ath_softc *)arg;
-        struct ath_hw *ah = sc->sc_ah;
-        struct ath_btcoex *btcoex = &sc->btcoex;
-        struct ath_btcoex_info *btinfo = &ah->btcoex_info;
-
-        DPRINTF(ah, ATH_DBG_BTCOEX, "no stomp timer running \n");
-
-        spin_lock_bh(&btcoex->btcoex_lock);
-
-        if (btinfo->bt_stomp_type == ATH_BTCOEX_STOMP_LOW)
-                ath_btcoex_bt_stomp(sc, btinfo, ATH_BTCOEX_STOMP_NONE);
-         else if (btinfo->bt_stomp_type == ATH_BTCOEX_STOMP_ALL)
-                ath_btcoex_bt_stomp(sc, btinfo, ATH_BTCOEX_STOMP_LOW);
-
-        spin_unlock_bh(&btcoex->btcoex_lock);
-}
-
-static int ath_init_btcoex_info(struct ath_hw *ah,
-                                struct ath_btcoex_info *btcoex_info)
-{
-        struct ath_btcoex *btcoex = &ah->ah_sc->btcoex;
+        struct ath_btcoex_info *btcoex_info = &ah->btcoex_info;
         u32 i;
-        int qnum;
-
-        qnum = ath_tx_get_qnum(ah->ah_sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE);
 
         btcoex_info->bt_coex_mode =
                 (btcoex_info->bt_coex_mode & AR_BT_QCU_THRESH) |
@@ -201,31 +67,11 @@ static int ath_init_btcoex_info(struct ath_hw *ah,
 
         btcoex_info->bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
 
-        btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000;
-
-        btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
-                btcoex->btcoex_period / 100;
-
         for (i = 0; i < 32; i++)
                 ah->hw_gen_timers.gen_timer_index[(debruijn32 << i) >> 27] = i;
-
-        setup_timer(&btcoex->period_timer, ath_btcoex_period_timer,
-                        (unsigned long) ah->ah_sc);
-
-        btcoex_info->no_stomp_timer = ath_gen_timer_alloc(ah,
-                        ath_btcoex_no_stomp_timer,
-                        ath_btcoex_no_stomp_timer,
-                        (void *)ah->ah_sc, AR_FIRST_NDP_TIMER);
-
-        if (btcoex_info->no_stomp_timer == NULL)
-                return -ENOMEM;
-
-        spin_lock_init(&btcoex->btcoex_lock);
-
-        return 0;
 }
 
-static void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah)
+void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah)
 {
         struct ath_btcoex_info *btcoex_info = &ah->btcoex_info;
 
@@ -246,7 +92,7 @@ static void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah)
         ath9k_hw_cfg_gpio_input(ah, btcoex_info->btactive_gpio);
 }
 
-static void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah)
+void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah)
 {
         struct ath_btcoex_info *btcoex_info = &ah->btcoex_info;
 
@@ -271,21 +117,6 @@ static void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah)
         ath9k_hw_cfg_gpio_input(ah, btcoex_info->btpriority_gpio);
 }
 
-int ath9k_hw_btcoex_init(struct ath_hw *ah)
-{
-        struct ath_btcoex_info *btcoex_info = &ah->btcoex_info;
-        int ret = 0;
-
-        if (btcoex_info->btcoex_scheme == ATH_BTCOEX_CFG_2WIRE)
-                ath9k_hw_btcoex_init_2wire(ah);
-        else {
-                ath9k_hw_btcoex_init_3wire(ah);
-                ret = ath_init_btcoex_info(ah, btcoex_info);
-        }
-
-        return ret;
-}
-
 void ath9k_hw_btcoex_enable(struct ath_hw *ah)
 {
         struct ath_btcoex_info *btcoex_info = &ah->btcoex_info;
@@ -336,40 +167,3 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
 
         ah->ah_sc->sc_flags &= ~SC_OP_BTCOEX_ENABLED;
 }
-
-/*
- * Pause btcoex timer and bt duty cycle timer
- */
-void ath_btcoex_timer_pause(struct ath_softc *sc)
-{
-        struct ath_btcoex *btcoex = &sc->btcoex;
-        struct ath_hw *ah = sc->sc_ah;
-
-        del_timer_sync(&btcoex->period_timer);
-
-        if (btcoex->hw_timer_enabled)
-                ath_gen_timer_stop(ah, ah->btcoex_info.no_stomp_timer);
-
-        btcoex->hw_timer_enabled = false;
-}
-
-/*
- * (Re)start btcoex timers
- */
-void ath_btcoex_timer_resume(struct ath_softc *sc)
-{
-        struct ath_btcoex *btcoex = &sc->btcoex;
-        struct ath_hw *ah = sc->sc_ah;
-
-        DPRINTF(ah, ATH_DBG_BTCOEX, "Starting btcoex timers");
-
-        /* make sure duty cycle timer is also stopped when resuming */
-        if (btcoex->hw_timer_enabled)
-                ath_gen_timer_stop(sc->sc_ah, ah->btcoex_info.no_stomp_timer);
-
-        btcoex->bt_priority_cnt = 0;
-        btcoex->bt_priority_time = jiffies;
-        sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED;
-
-        mod_timer(&btcoex->period_timer, jiffies);
-}
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h
index 12e86b70d950..ed8d01d2f762 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.h
+++ b/drivers/net/wireless/ath/ath9k/btcoex.h
@@ -72,13 +72,14 @@ struct ath_btcoex_info {
         u32 bt_coex_mode;       /* Register setting for AR_BT_COEX_MODE */
         u32 bt_coex_weights;    /* Register setting for AR_BT_COEX_WEIGHT */
         u32 bt_coex_mode2;      /* Register setting for AR_BT_COEX_MODE2 */
-        struct ath_gen_timer *no_stomp_timer; /*Timer for no BT stomping*/
 };
 
 bool ath_btcoex_supported(u16 subsysid);
-void ath9k_hw_btcoex_init_weight(struct ath_hw *ah);
-int ath9k_hw_btcoex_init(struct ath_hw *ah);
+void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
+void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
+void ath9k_hw_init_btcoex_hw_info(struct ath_hw *ah, int qnum);
 void ath9k_hw_btcoex_enable(struct ath_hw *ah);
 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
 
+
 #endif
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index f2b3a601d6a9..b244225ca050 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -679,7 +679,4 @@ u32 ath9k_hw_gettsf32(struct ath_hw *ah);
 #define ATH_PCIE_CAP_LINK_L1    2
 
 void ath_pcie_aspm_disable(struct ath_softc *sc);
-
-void ath_btcoex_timer_resume(struct ath_softc *sc);
-void ath_btcoex_timer_pause(struct ath_softc *sc);
 #endif
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 63e1f183b470..9ac1ee0638f0 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1286,9 +1286,9 @@ void ath_detach(struct ath_softc *sc)
                 if (ATH_TXQ_SETUP(sc, i))
                         ath_tx_cleanupq(sc, &sc->tx.txq[i]);
 
-        if ((ah->btcoex_info.no_stomp_timer) &&
+        if ((sc->btcoex.no_stomp_timer) &&
             ah->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE)
-                ath_gen_timer_free(ah, ah->btcoex_info.no_stomp_timer);
+                ath_gen_timer_free(ah, sc->btcoex.no_stomp_timer);
 
         ath9k_hw_detach(ah);
         ath9k_exit_debug(ah);
@@ -1307,6 +1307,158 @@ static int ath9k_reg_notifier(struct wiphy *wiphy,
 }
 
 /*
+ * Detects if there is any priority bt traffic
+ */
+static void ath_detect_bt_priority(struct ath_softc *sc)
+{
+        struct ath_btcoex *btcoex = &sc->btcoex;
+        struct ath_hw *ah = sc->sc_ah;
+
+        if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_info.btpriority_gpio))
+                btcoex->bt_priority_cnt++;
+
+        if (time_after(jiffies, btcoex->bt_priority_time +
+                        msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) {
+                if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
+                        DPRINTF(sc->sc_ah, ATH_DBG_BTCOEX,
+                                "BT priority traffic detected");
+                        sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED;
+                } else {
+                        sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED;
+                }
+
+                btcoex->bt_priority_cnt = 0;
+                btcoex->bt_priority_time = jiffies;
+        }
+}
+
+static void ath_btcoex_set_weight(struct ath_btcoex_info *btcoex_info,
+                                  u32 bt_weight,
+                                  u32 wlan_weight)
+{
+        btcoex_info->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) |
+                                       SM(wlan_weight, AR_BTCOEX_WL_WGHT);
+}
+
+static void ath9k_hw_btcoex_init_weight(struct ath_hw *ah)
+{
+        ath_btcoex_set_weight(&ah->btcoex_info, AR_BT_COEX_WGHT,
+                              AR_STOMP_LOW_WLAN_WGHT);
+}
+
+/*
+ * Configures appropriate weight based on stomp type.
+ */
+static void ath_btcoex_bt_stomp(struct ath_softc *sc,
+                                struct ath_btcoex_info *btinfo,
+                                int stomp_type)
+{
+
+        switch (stomp_type) {
+        case ATH_BTCOEX_STOMP_ALL:
+                ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT,
+                                      AR_STOMP_ALL_WLAN_WGHT);
+                break;
+        case ATH_BTCOEX_STOMP_LOW:
+                ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT,
+                                      AR_STOMP_LOW_WLAN_WGHT);
+                break;
+        case ATH_BTCOEX_STOMP_NONE:
+                ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT,
+                                      AR_STOMP_NONE_WLAN_WGHT);
+                break;
+        default:
+                DPRINTF(sc->sc_ah, ATH_DBG_BTCOEX, "Invalid Stomptype\n");
+                break;
+        }
+
+        ath9k_hw_btcoex_enable(sc->sc_ah);
+}
+
+/*
+ * This is the master bt coex timer which runs for every
+ * 45ms, bt traffic will be given priority during 55% of this
+ * period while wlan gets remaining 45%
+ */
+static void ath_btcoex_period_timer(unsigned long data)
+{
+        struct ath_softc *sc = (struct ath_softc *) data;
+        struct ath_hw *ah = sc->sc_ah;
+        struct ath_btcoex *btcoex = &sc->btcoex;
+        struct ath_btcoex_info *btinfo = &ah->btcoex_info;
+
+        ath_detect_bt_priority(sc);
+
+        spin_lock_bh(&btcoex->btcoex_lock);
+
+        ath_btcoex_bt_stomp(sc, btinfo, btinfo->bt_stomp_type);
+
+        spin_unlock_bh(&btcoex->btcoex_lock);
+
+        if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) {
+                if (btcoex->hw_timer_enabled)
+                        ath_gen_timer_stop(ah, btcoex->no_stomp_timer);
+
+                ath_gen_timer_start(ah,
+                        btcoex->no_stomp_timer,
+                        (ath9k_hw_gettsf32(ah) +
+                                btcoex->btcoex_no_stomp),
+                                btcoex->btcoex_no_stomp * 10);
+                btcoex->hw_timer_enabled = true;
+        }
+
+        mod_timer(&btcoex->period_timer, jiffies +
+                                  msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD));
+}
+
+/*
+ * Generic tsf based hw timer which configures weight
+ * registers to time slice between wlan and bt traffic
+ */
+static void ath_btcoex_no_stomp_timer(void *arg)
+{
+        struct ath_softc *sc = (struct ath_softc *)arg;
+        struct ath_hw *ah = sc->sc_ah;
+        struct ath_btcoex *btcoex = &sc->btcoex;
+        struct ath_btcoex_info *btinfo = &ah->btcoex_info;
+
+        DPRINTF(ah, ATH_DBG_BTCOEX, "no stomp timer running \n");
+
+        spin_lock_bh(&btcoex->btcoex_lock);
+
+        if (btinfo->bt_stomp_type == ATH_BTCOEX_STOMP_LOW)
+                ath_btcoex_bt_stomp(sc, btinfo, ATH_BTCOEX_STOMP_NONE);
+         else if (btinfo->bt_stomp_type == ATH_BTCOEX_STOMP_ALL)
+                ath_btcoex_bt_stomp(sc, btinfo, ATH_BTCOEX_STOMP_LOW);
+
+        spin_unlock_bh(&btcoex->btcoex_lock);
+}
+
+static int ath_init_btcoex_timer(struct ath_softc *sc)
+{
+        struct ath_btcoex *btcoex = &sc->btcoex;
+
+        btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000;
+        btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
+                btcoex->btcoex_period / 100;
+
+        setup_timer(&btcoex->period_timer, ath_btcoex_period_timer,
+                        (unsigned long) sc);
+
+        spin_lock_init(&btcoex->btcoex_lock);
+
+        btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah,
+                        ath_btcoex_no_stomp_timer,
+                        ath_btcoex_no_stomp_timer,
+                        (void *) sc, AR_FIRST_NDP_TIMER);
+
+        if (!btcoex->no_stomp_timer)
+                return -ENOMEM;
+
+        return 0;
+}
+
+/*
  * Initialize and fill ath_softc, ath_sofct is the
  * "Software Carrier" struct. Historically it has existed
  * to allow the separation between hardware specific
@@ -1317,6 +1469,7 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
         struct ath_hw *ah = NULL;
         int r = 0, i;
         int csz = 0;
+        int qnum;
 
         /* XXX: hardware will not be ready until ath_open() being called */
         sc->sc_flags |= SC_OP_INVALID;
@@ -1521,10 +1674,23 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
                         ARRAY_SIZE(ath9k_5ghz_chantable);
         }
 
-        if (ah->btcoex_info.btcoex_scheme != ATH_BTCOEX_CFG_NONE) {
-                r = ath9k_hw_btcoex_init(ah);
+        switch (ah->btcoex_info.btcoex_scheme) {
+        case ATH_BTCOEX_CFG_NONE:
+                break;
+        case ATH_BTCOEX_CFG_2WIRE:
+                ath9k_hw_btcoex_init_2wire(ah);
+                break;
+        case ATH_BTCOEX_CFG_3WIRE:
+                ath9k_hw_btcoex_init_3wire(ah);
+                r = ath_init_btcoex_timer(sc);
                 if (r)
                         goto bad2;
+                qnum = ath_tx_get_qnum(sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE);
+                ath9k_hw_init_btcoex_hw_info(ah, qnum);
+                break;
+        default:
+                WARN_ON(1);
+                break;
         }
 
         return 0;
@@ -1906,6 +2072,27 @@ void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
 /* mac80211 callbacks */
 /**********************/
 
+/*
+ * (Re)start btcoex timers
+ */
+static void ath9k_btcoex_timer_resume(struct ath_softc *sc)
+{
+        struct ath_btcoex *btcoex = &sc->btcoex;
+        struct ath_hw *ah = sc->sc_ah;
+
+        DPRINTF(ah, ATH_DBG_BTCOEX, "Starting btcoex timers");
+
+        /* make sure duty cycle timer is also stopped when resuming */
+        if (btcoex->hw_timer_enabled)
+                ath_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
+
+        btcoex->bt_priority_cnt = 0;
+        btcoex->bt_priority_time = jiffies;
+        sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED;
+
+        mod_timer(&btcoex->period_timer, jiffies);
+}
+
 static int ath9k_start(struct ieee80211_hw *hw)
 {
         struct ath_wiphy *aphy = hw->priv;
@@ -2018,7 +2205,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
 
                 ath_pcie_aspm_disable(sc);
                 if (ah->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE)
-                        ath_btcoex_timer_resume(sc);
+                        ath9k_btcoex_timer_resume(sc);
         }
 
 mutex_unlock:
@@ -2126,6 +2313,22 @@ exit:
         return 0;
 }
 
+/*
+ * Pause btcoex timer and bt duty cycle timer
+ */
+static void ath9k_btcoex_timer_pause(struct ath_softc *sc)
+{
+        struct ath_btcoex *btcoex = &sc->btcoex;
+        struct ath_hw *ah = sc->sc_ah;
+
+        del_timer_sync(&btcoex->period_timer);
+
+        if (btcoex->hw_timer_enabled)
+                ath_gen_timer_stop(ah, btcoex->no_stomp_timer);
+
+        btcoex->hw_timer_enabled = false;
+}
+
 static void ath9k_stop(struct ieee80211_hw *hw)
 {
         struct ath_wiphy *aphy = hw->priv;
@@ -2158,7 +2361,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
         if (sc->sc_flags & SC_OP_BTCOEX_ENABLED) {
                 ath9k_hw_btcoex_disable(ah);
                 if (ah->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE)
-                        ath_btcoex_timer_pause(sc);
+                        ath9k_btcoex_timer_pause(sc);
         }
 
         /* make sure h/w will not generate any interrupt