From f985ad12b595094839fddaf757fcf5d853ed3d7f Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Wed, 26 Aug 2009 21:08:43 +0530 Subject: ath9k: Split ath9k_hw_btcoex_enable() into two logical pieces This function currently does initialization + enable the btcoex support. Split it into two logical functions which does the above operations separately. Btcoex initialization is done during attach time and enabling this feature is done in start(). Also, add code to disable btcoex support in stop(). Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + drivers/net/wireless/ath/ath9k/hw.c | 17 ++++++++++++++++- drivers/net/wireless/ath/ath9k/hw.h | 2 ++ drivers/net/wireless/ath/ath9k/main.c | 11 +++++++++-- 4 files changed, 28 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 7705da1103f..08688008336 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -521,6 +521,7 @@ struct ath_led { #define SC_OP_WAIT_FOR_PSPOLL_DATA BIT(17) #define SC_OP_WAIT_FOR_TX_ACK BIT(18) #define SC_OP_BEACON_SYNC BIT(19) +#define SC_OP_BTCOEX_ENABLED BIT(20) struct ath_bus_ops { void (*read_cachesize)(struct ath_softc *sc, int *csz); diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 4f3d5ea3481..d81e826b682 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -4073,7 +4073,7 @@ void ath9k_hw_set11nmac2040(struct ath_hw *ah, enum ath9k_ht_macmode mode) /* Bluetooth Coexistence */ /***************************/ -void ath9k_hw_btcoex_enable(struct ath_hw *ah) +void ath9k_hw_btcoex_init(struct ath_hw *ah) { /* connect bt_active to baseband */ REG_CLR_BIT(ah, AR_GPIO_INPUT_EN_VAL, @@ -4090,8 +4090,23 @@ void ath9k_hw_btcoex_enable(struct ath_hw *ah) /* Configure the desired gpio port for input */ ath9k_hw_cfg_gpio_input(ah, ah->btactive_gpio); +} +void ath9k_hw_btcoex_enable(struct ath_hw *ah) +{ /* Configure the desired GPIO port for TX_FRAME output */ ath9k_hw_cfg_output(ah, ah->wlanactive_gpio, AR_GPIO_OUTPUT_MUX_AS_TX_FRAME); + + ah->ah_sc->sc_flags |= SC_OP_BTCOEX_ENABLED; +} + +void ath9k_hw_btcoex_disable(struct ath_hw *ah) +{ + ath9k_hw_set_gpio(ah, ah->wlanactive_gpio, 0); + + ath9k_hw_cfg_output(ah, ah->wlanactive_gpio, + AR_GPIO_OUTPUT_MUX_AS_OUTPUT); + + ah->ah_sc->sc_flags &= ~SC_OP_BTCOEX_ENABLED; } diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index b24150a1b4a..e634cb448ca 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -614,6 +614,8 @@ bool ath9k_hw_intrpend(struct ath_hw *ah); bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked); enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints); +void ath9k_hw_btcoex_init(struct ath_hw *ah); 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/main.c b/drivers/net/wireless/ath/ath9k/main.c index eb8d673cde5..878d3be7c71 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1509,8 +1509,8 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc) ARRAY_SIZE(ath9k_5ghz_chantable); } - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) - ath9k_hw_btcoex_enable(sc->sc_ah); + if (ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) + ath9k_hw_btcoex_init(ah); return 0; bad2: @@ -1992,6 +1992,10 @@ static int ath9k_start(struct ieee80211_hw *hw) ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); + if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) && + !(sc->sc_flags & SC_OP_BTCOEX_ENABLED)) + ath9k_hw_btcoex_enable(sc->sc_ah); + mutex_unlock: mutex_unlock(&sc->mutex); @@ -2138,6 +2142,9 @@ static void ath9k_stop(struct ieee80211_hw *hw) wiphy_rfkill_stop_polling(sc->hw->wiphy); + if (sc->sc_flags & SC_OP_BTCOEX_ENABLED) + ath9k_hw_btcoex_disable(sc->sc_ah); + /* disable HAL and put h/w to sleep */ ath9k_hw_disable(sc->sc_ah); ath9k_hw_configpcipowersave(sc->sc_ah, 1); -- cgit v1.2.3