ath9k_hw: make bluetooth coexistence support optional at compile time

Many systems (e.g. embedded systems) do not have wifi modules connected to
bluetooth modules, so bluetooth coexistence is irrelevant there. With the
addition of MCI support, ath9k picked up quite a bit of extra code that
can be compiled out this way.

This patch redefines ATH9K_HW_CAP_MCI and adds an inline wrapper for
querying the bluetooth coexistence scheme, allowing the compiler to
eliminate code that uses it, with only very little use of #ifdef.

On MIPS this reduces the total size for the modules by about 20k.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 1b4786ae00ac14f0beb096aa210e098be98cb4ea..dc6be4afe8eb96ad1ecce4147db6ff761d1556bc 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -81,6 +81,14 @@ config ATH9K_RATE_CONTROL
          Say Y, if you want to use the ath9k specific rate control
          module instead of minstrel_ht.
 
+config ATH9K_BTCOEX_SUPPORT
+       bool "Atheros ath9k bluetooth coexistence support"
+       depends on ATH9K
+       default y
+       ---help---
+         Say Y, if you want to use the ath9k radios together with
+         Bluetooth modules in the same system.
+
 config ATH9K_HTC
        tristate "Atheros HTC based wireless cards support"
        depends on USB && MAC80211

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index fdd0f815cf8357c1f9f71dca5ed2ccb514d8770e..709520c6835bd62444a8aa1f713fd67264be6985 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -85,6 +85,9 @@ void ar9003_mci_remote_reset(struct ath_hw *ah, bool wait_done)
 {
        u32 payload[4] = { 0xffffffff, 0xffffffff, 0xffffffff, 0xffffff00};
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        ar9003_mci_send_message(ah, MCI_REMOTE_RESET, 0, payload, 16,
                                wait_done, false);
        udelay(5);
@@ -94,6 +97,9 @@ void ar9003_mci_send_lna_transfer(struct ath_hw *ah, bool wait_done)
 {
        u32 payload = 0x00000000;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        ar9003_mci_send_message(ah, MCI_LNA_TRANS, 0, &payload, 1,
                                wait_done, false);
 }
@@ -107,6 +113,9 @@ static void ar9003_mci_send_req_wake(struct ath_hw *ah, bool wait_done)
 
 void ar9003_mci_send_sys_waking(struct ath_hw *ah, bool wait_done)
 {
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        ar9003_mci_send_message(ah, MCI_SYS_WAKING, MCI_FLAG_DISABLE_TIMESTAMP,
                                NULL, 0, wait_done, false);
 }
@@ -220,6 +229,9 @@ void ar9003_mci_send_coex_halt_bt_gpm(struct ath_hw *ah, bool halt,
        struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
        u32 payload[4] = {0, 0, 0, 0};
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        ath_dbg(common, MCI, "MCI Send Coex %s BT GPM\n",
                (halt) ? "halt" : "unhalt");
 
@@ -374,12 +386,17 @@ static void ar9003_mci_prep_interface(struct ath_hw *ah)
 
 void ar9003_mci_disable_interrupt(struct ath_hw *ah)
 {
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        REG_WRITE(ah, AR_MCI_INTERRUPT_EN, 0);
        REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
 }
 
 void ar9003_mci_enable_interrupt(struct ath_hw *ah)
 {
+       if (!ATH9K_HW_CAP_MCI)
+               return;
 
        REG_WRITE(ah, AR_MCI_INTERRUPT_EN, AR_MCI_INTERRUPT_DEFAULT);
        REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
@@ -390,6 +407,9 @@ bool ar9003_mci_check_int(struct ath_hw *ah, u32 ints)
 {
        u32 intr;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return false;
+
        intr = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_RAW);
        return ((intr & ints) == ints);
 }
@@ -398,6 +418,10 @@ void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,
                              u32 *rx_msg_intr)
 {
        struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
+
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        *raw_intr = mci->raw_intr;
        *rx_msg_intr = mci->rx_msg_intr;
 
@@ -411,6 +435,9 @@ void ar9003_mci_2g5g_changed(struct ath_hw *ah, bool is_2g)
 {
        struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        if (!mci->update_2g5g &&
            (mci->is_2g != is_2g))
                mci->update_2g5g = true;
@@ -524,6 +551,9 @@ void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
        struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
        u32 regval, thresh;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        ath_dbg(common, MCI, "MCI full_sleep = %d, is_2g = %d\n",
                is_full_sleep, is_2g);
 
@@ -650,6 +680,9 @@ void ar9003_mci_mute_bt(struct ath_hw *ah)
 {
        struct ath_common *common = ath9k_hw_common(ah);
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        /* disable all MCI messages */
        REG_WRITE(ah, AR_MCI_MSG_ATTRIBUTES_TABLE, 0xffff0000);
        REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS0, 0xffffffff);
@@ -682,6 +715,9 @@ void ar9003_mci_sync_bt_state(struct ath_hw *ah)
        struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
        u32 cur_bt_state;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        cur_bt_state = ar9003_mci_state(ah, MCI_STATE_REMOTE_SLEEP, NULL);
 
        if (mci->bt_state != cur_bt_state) {
@@ -844,6 +880,9 @@ void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool wait_done)
        struct ath_common *common = ath9k_hw_common(ah);
        struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        if (mci->update_2g5g) {
                if (mci->is_2g) {
 
@@ -895,6 +934,9 @@ bool ar9003_mci_send_message(struct ath_hw *ah, u8 header, u32 flag,
        u32 saved_mci_int_en;
        int i;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return false;
+
        saved_mci_int_en = REG_READ(ah, AR_MCI_INTERRUPT_EN);
        regval = REG_READ(ah, AR_BTCOEX_CTRL);
 
@@ -961,6 +1003,9 @@ void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
        struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
        void *sched_buf = (void *)((char *) gpm_buf + (sched_addr - gpm_addr));
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        mci->gpm_addr = gpm_addr;
        mci->gpm_buf = gpm_buf;
        mci->gpm_len = len;
@@ -975,6 +1020,9 @@ void ar9003_mci_cleanup(struct ath_hw *ah)
 {
        struct ath_common *common = ath9k_hw_common(ah);
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        /* Turn off MCI and Jupiter mode. */
        REG_WRITE(ah, AR_BTCOEX_CTRL, 0x00);
        ath_dbg(common, MCI, "MCI ar9003_mci_cleanup\n");
@@ -1039,6 +1087,9 @@ u32 ar9003_mci_wait_for_gpm(struct ath_hw *ah, u8 gpm_type,
        u8 recv_type = 0, recv_opcode = 0;
        bool b_is_bt_cal_done = (gpm_type == MCI_GPM_BT_CAL_DONE);
 
+       if (!ATH9K_HW_CAP_MCI)
+               return 0;
+
        more_data = time_out ? MCI_GPM_NOMORE : MCI_GPM_MORE;
 
        while (time_out > 0) {
@@ -1168,6 +1219,9 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type, u32 *p_data)
        u32 value = 0, more_gpm = 0, gpm_ptr;
        u8 query_type;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return 0;
+
        switch (state_type) {
        case MCI_STATE_ENABLE:
                if (mci->ready) {

diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c
index 553d279cc5ee8a590d73d6f04606309b2e437c3e..a6712a95d76a24da330c4d628fc15455afce5536 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/btcoex.c
+++ b/drivers/net/wireless/ath/ath9k/btcoex.c
@@ -68,6 +68,9 @@ void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum)
        u32 i, idx;
        bool rxclear_polarity = ath_bt_config.bt_rxclear_polarity;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        if (AR_SREV_9300_20_OR_LATER(ah))
                rxclear_polarity = !ath_bt_config.bt_rxclear_polarity;
 
@@ -99,6 +102,9 @@ void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah)
 {
        struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        /* connect bt_active to baseband */
        REG_CLR_BIT(ah, AR_GPIO_INPUT_EN_VAL,
                    (AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_DEF |
@@ -121,6 +127,9 @@ void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah)
 {
        struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        /* btcoex 3-wire */
        REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
                        (AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_BB |
@@ -147,6 +156,9 @@ static void ath9k_hw_btcoex_enable_2wire(struct ath_hw *ah)
 {
        struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        /* Configure the desired GPIO port for TX_FRAME output */
        ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio,
                            AR_GPIO_OUTPUT_MUX_AS_TX_FRAME);
@@ -158,6 +170,9 @@ void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 {
        struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        btcoex_hw->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) |
                                     SM(wlan_weight, AR_BTCOEX_WL_WGHT);
 }
@@ -219,9 +234,9 @@ void ath9k_hw_btcoex_enable(struct ath_hw *ah)
 {
        struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
 
-       switch (btcoex_hw->scheme) {
+       switch (ath9k_hw_get_btcoex_scheme(ah)) {
        case ATH_BTCOEX_CFG_NONE:
-               break;
+               return;
        case ATH_BTCOEX_CFG_2WIRE:
                ath9k_hw_btcoex_enable_2wire(ah);
                break;
@@ -246,6 +261,9 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
        struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
        int i;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        btcoex_hw->enabled = false;
        if (btcoex_hw->scheme == ATH_BTCOEX_CFG_MCI) {
                ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
@@ -294,6 +312,9 @@ static void ar9003_btcoex_bt_stomp(struct ath_hw *ah,
 void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
                              enum ath_stomp_type stomp_type)
 {
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        if (AR_SREV_9300_20_OR_LATER(ah)) {
                ar9003_btcoex_bt_stomp(ah, stomp_type);
                return;

diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index 7834d70a190d00c6ce105e75069aecd9ebb09075..597c84e31adb3b30a69ea7beb4f91b9890a2a662 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -249,6 +249,9 @@ int ath_init_btcoex_timer(struct ath_softc *sc)
 {
        struct ath_btcoex *btcoex = &sc->btcoex;
 
+       if (ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_NONE)
+               return 0;
+
        btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000;
        btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
                btcoex->btcoex_period / 100;
@@ -281,6 +284,9 @@ void ath9k_btcoex_timer_resume(struct ath_softc *sc)
 
        ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n");
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        /* make sure duty cycle timer is also stopped when resuming */
        if (btcoex->hw_timer_enabled)
                ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
@@ -301,6 +307,9 @@ void ath9k_btcoex_timer_pause(struct ath_softc *sc)
        struct ath_btcoex *btcoex = &sc->btcoex;
        struct ath_hw *ah = sc->sc_ah;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        del_timer_sync(&btcoex->period_timer);
 
        if (btcoex->hw_timer_enabled)

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
index b7c030018403913d660d59e9efdc2e4c9ed3e5fd..6506e1fd503649ad42246b84c49c618b5b818ad9 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
@@ -115,6 +115,9 @@ void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv)
 {
        struct ath_btcoex *btcoex = &priv->btcoex;
 
+       if (ath9k_hw_get_btcoex_scheme(priv->ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD;
        btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
                btcoex->btcoex_period / 100;
@@ -133,6 +136,9 @@ void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv)
        struct ath_btcoex *btcoex = &priv->btcoex;
        struct ath_hw *ah = priv->ah;
 
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex work\n");
 
        btcoex->bt_priority_cnt = 0;
@@ -147,6 +153,9 @@ void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv)
  */
 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv)
 {
+       if (ath9k_hw_get_btcoex_scheme(priv->ah) == ATH_BTCOEX_CFG_NONE)
+               return;
+
        cancel_delayed_work_sync(&priv->coex_period_work);
        cancel_delayed_work_sync(&priv->duty_cycle_work);
 }

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 6cbad73f9f2a7f628f14eaf6457fea7b03320504..9be10a2da1c29cc48f6a96656a596c8cf6e6c5c4 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -607,7 +607,7 @@ static void ath9k_init_btcoex(struct ath9k_htc_priv *priv)
 {
        int qnum;
 
-       switch (priv->ah->btcoex_hw.scheme) {
+       switch (ath9k_hw_get_btcoex_scheme(priv->ah)) {
        case ATH_BTCOEX_CFG_NONE:
                break;
        case ATH_BTCOEX_CFG_3WIRE:
@@ -701,7 +701,8 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 
        if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) {
                ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE;
-               ath9k_init_btcoex(priv);
+               if (ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE)
+                       ath9k_init_btcoex(priv);
        }
 
        return 0;

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 539f4455076e4bc6818637167bb00bac3ffc0f28..ef4c6066129022d90bda90416a65bdab93d59c27 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -957,7 +957,7 @@ static int ath9k_htc_start(struct ieee80211_hw *hw)
        mod_timer(&priv->tx.cleanup_timer,
                  jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
 
-       if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) {
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) {
                ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
                                           AR_STOMP_LOW_WLAN_WGHT);
                ath9k_hw_btcoex_enable(ah);
@@ -1009,7 +1009,8 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw)
 
        mutex_lock(&priv->mutex);
 
-       if (ah->btcoex_hw.enabled) {
+       if (ah->btcoex_hw.enabled &&
+           ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
                ath9k_hw_btcoex_disable(ah);
                if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
                        ath_htc_cancel_btcoex_work(priv);

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 0fde03104ef0d554ccff57bb06660de1142a9d03..ee77595750503db51e83ef90644f7884a5c529a5 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1891,7 +1891,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 #endif
        }
 
-       if (ah->btcoex_hw.enabled)
+       if (ah->btcoex_hw.enabled &&
+           ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE)
                ath9k_hw_btcoex_enable(ah);
 
        if (mci && mci_hw->ready) {

diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 615cc839f0de5b4077bcb1711536067c01af5a0d..48205c2960b56b185775306c55c3fb449d3f6a2c 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -209,7 +209,11 @@ enum ath9k_hw_caps {
        ATH9K_HW_CAP_5GHZ                       = BIT(12),
        ATH9K_HW_CAP_APM                        = BIT(13),
        ATH9K_HW_CAP_RTT                        = BIT(14),
+#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
        ATH9K_HW_CAP_MCI                        = BIT(15),
+#else
+       ATH9K_HW_CAP_MCI                        = 0,
+#endif
        ATH9K_HW_CAP_DFS                        = BIT(16),
 };
 
@@ -1228,6 +1232,16 @@ void ar9003_mci_sync_bt_state(struct ath_hw *ah);
 void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,
                              u32 *rx_msg_intr);
 
+#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
+static inline enum ath_btcoex_scheme
+ath9k_hw_get_btcoex_scheme(struct ath_hw *ah)
+{
+       return ah->btcoex_hw.scheme;
+}
+#else
+#define ath9k_hw_get_btcoex_scheme(...) ATH_BTCOEX_CFG_NONE
+#endif
+
 #define ATH9K_CLOCK_RATE_CCK           22
 #define ATH9K_CLOCK_RATE_5GHZ_OFDM     40
 #define ATH9K_CLOCK_RATE_2GHZ_OFDM     44

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 58ce67f976f9933029933df40d8920f9022731a2..abf943557deeca279a82ca434cb4eb5032d6805b 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -425,7 +425,7 @@ static int ath9k_init_btcoex(struct ath_softc *sc)
        struct ath_hw *ah = sc->sc_ah;
        int r;
 
-       switch (sc->sc_ah->btcoex_hw.scheme) {
+       switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) {
        case ATH_BTCOEX_CFG_NONE:
                break;
        case ATH_BTCOEX_CFG_2WIRE:
@@ -880,10 +880,10 @@ static void ath9k_deinit_softc(struct ath_softc *sc)
                kfree(sc->sbands[IEEE80211_BAND_5GHZ].channels);
 
         if ((sc->btcoex.no_stomp_timer) &&
-           sc->sc_ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
+           ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_3WIRE)
                ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);
 
-       if (sc->sc_ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_MCI)
+       if (ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_MCI)
                ath_mci_cleanup(sc);
 
        for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index eb06e4fdf5b2b79e979efdfb588a2ee63741ac2a..6e3d8384e081effb2422e4410ea1db1eb192c7d4 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -741,11 +741,11 @@ void ath9k_tasklet(unsigned long data)
                        ath_tx_tasklet(sc);
        }
 
-       if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
+       if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
                if (status & ATH9K_INT_GENTIMER)
                        ath_gen_timer_isr(sc->sc_ah);
 
-       if (status & ATH9K_INT_MCI)
+       if ((status & ATH9K_INT_MCI) && ATH9K_HW_CAP_MCI)
                ath_mci_intr(sc);
 
 out:
@@ -1081,14 +1081,14 @@ static int ath9k_start(struct ieee80211_hw *hw)
 
        spin_unlock_bh(&sc->sc_pcu_lock);
 
-       if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
+       if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
            !ah->btcoex_hw.enabled) {
                if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
                        ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
                                                   AR_STOMP_LOW_WLAN_WGHT);
                ath9k_hw_btcoex_enable(ah);
 
-               if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
+               if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
                        ath9k_btcoex_timer_resume(sc);
        }
 
@@ -1191,9 +1191,10 @@ static void ath9k_stop(struct ieee80211_hw *hw)
        /* Ensure HW is awake when we try to shut it down. */
        ath9k_ps_wakeup(sc);
 
-       if (ah->btcoex_hw.enabled) {
+       if (ah->btcoex_hw.enabled &&
+           ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
                ath9k_hw_btcoex_disable(ah);
-               if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
+               if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
                        ath9k_btcoex_timer_pause(sc);
                ath_mci_flush_profile(&sc->btcoex.mci);
        }

diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c
index ca9b53cc4001d0d8f0b93d9b0bc47c31c543138f..fee8c6f0b2512049a7d45de36b1001678684b460 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/mci.c
+++ b/drivers/net/wireless/ath/ath9k/mci.c
@@ -417,6 +417,9 @@ int ath_mci_setup(struct ath_softc *sc)
        struct ath_mci_coex *mci = &sc->mci_coex;
        int error = 0;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return 0;
+
        mci->sched_buf.bf_len = ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE;
 
        if (ath_mci_buf_alloc(sc, &mci->sched_buf)) {
@@ -450,6 +453,9 @@ void ath_mci_cleanup(struct ath_softc *sc)
        struct ath_hw *ah = sc->sc_ah;
        struct ath_mci_coex *mci = &sc->mci_coex;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        /*
         * both schedule and gpm buffers will be released
         */
@@ -468,6 +474,9 @@ void ath_mci_intr(struct ath_softc *sc)
        u32 more_data = MCI_GPM_MORE;
        bool skip_gpm = false;
 
+       if (!ATH9K_HW_CAP_MCI)
+               return;
+
        ar9003_mci_get_interrupt(sc->sc_ah, &mci_int, &mci_int_rxmsg);
 
        if (ar9003_mci_state(ah, MCI_STATE_ENABLE, NULL) == 0) {

diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index a439edc5dc06de032575ede2faa1504f04b6afad..77dc327def8dec509f50bfe4f490f1a29351f905 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -121,7 +121,7 @@ static void ath_pci_aspm_init(struct ath_common *common)
        if (!parent)
                return;
 
-       if (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) {
+       if (ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
                /* Bluetooth coexistance requires disabling ASPM. */
                pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &aspm);
                aspm &= ~(PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);