diff options
| -rw-r--r-- | drivers/net/wireless/ath9k/ath9k.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/ath9k/hw.c | 33 | ||||
| -rw-r--r-- | drivers/net/wireless/ath9k/main.c | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/ath9k/reg.h | 10 |
4 files changed, 55 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h index adcd34249a8..f2ad62536bf 100644 --- a/drivers/net/wireless/ath9k/ath9k.h +++ b/drivers/net/wireless/ath9k/ath9k.h @@ -198,6 +198,7 @@ enum ath9k_hw_caps { ATH9K_HW_CAP_AUTOSLEEP = BIT(19), ATH9K_HW_CAP_4KB_SPLITTRANS = BIT(20), ATH9K_HW_CAP_WOW_MATCHPATTERN_EXACT = BIT(21), + ATH9K_HW_CAP_BT_COEX = BIT(22) }; enum ath9k_capability_type { @@ -752,6 +753,7 @@ struct ath9k_node_stats { #define AR_GPIO_OUTPUT_MUX_AS_OUTPUT 0 #define AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED 1 #define AR_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED 2 +#define AR_GPIO_OUTPUT_MUX_AS_TX_FRAME 3 #define AR_GPIO_OUTPUT_MUX_AS_MAC_NETWORK_LED 5 #define AR_GPIO_OUTPUT_MUX_AS_MAC_POWER_LED 6 @@ -801,6 +803,8 @@ struct ath_hal { u16 ah_rfsilent; u32 ah_rfkill_gpio; u32 ah_rfkill_polarity; + u32 ah_btactive_gpio; + u32 ah_wlanactive_gpio; #ifndef ATH_NF_PER_CHAN struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS]; @@ -1050,5 +1054,6 @@ void ath9k_hw_rxena(struct ath_hal *ah); void ath9k_hw_startpcureceive(struct ath_hal *ah); void ath9k_hw_stoppcurecv(struct ath_hal *ah); bool ath9k_hw_stopdmarecv(struct ath_hal *ah); +void ath9k_hw_btcoex_enable(struct ath_hal *ah); #endif diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c index 19144caa797..3c026e6b245 100644 --- a/drivers/net/wireless/ath9k/hw.c +++ b/drivers/net/wireless/ath9k/hw.c @@ -3341,6 +3341,12 @@ bool ath9k_hw_fill_cap_info(struct ath_hal *ah) pCap->num_antcfg_2ghz = ath9k_hw_get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ); + if (AR_SREV_9280_10_OR_LATER(ah)) { + pCap->hw_caps |= ATH9K_HW_CAP_BT_COEX; + ah->ah_btactive_gpio = 6; + ah->ah_wlanactive_gpio = 5; + } + return true; } @@ -3836,3 +3842,30 @@ void ath9k_hw_set11nmac2040(struct ath_hal *ah, enum ath9k_ht_macmode mode) REG_WRITE(ah, AR_2040_MODE, macmode); } + +/***************************/ +/* Bluetooth Coexistence */ +/***************************/ + +void ath9k_hw_btcoex_enable(struct ath_hal *ah) +{ + /* connect bt_active to baseband */ + REG_CLR_BIT(ah, AR_GPIO_INPUT_EN_VAL, + (AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_DEF | + AR_GPIO_INPUT_EN_VAL_BT_FREQUENCY_DEF)); + + REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, + AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB); + + /* Set input mux for bt_active to gpio pin */ + REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1, + AR_GPIO_INPUT_MUX1_BT_ACTIVE, + ah->ah_btactive_gpio); + + /* Configure the desired gpio port for input */ + ath9k_hw_cfg_gpio_input(ah, ah->ah_btactive_gpio); + + /* Configure the desired GPIO port for TX_FRAME output */ + ath9k_hw_cfg_output(ah, ah->ah_wlanactive_gpio, + AR_GPIO_OUTPUT_MUX_AS_TX_FRAME); +} diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 9c1fb96acc5..8929b02aa22 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -431,12 +431,14 @@ static void ath_ani_calibrate(unsigned long data) /* * Update tx/rx chainmask. For legacy association, * hard code chainmask to 1x1, for 11n association, use - * the chainmask configuration. + * the chainmask configuration, for bt coexistence, use + * the chainmask configuration even in legacy mode. */ static void ath_update_chainmask(struct ath_softc *sc, int is_ht) { sc->sc_flags |= SC_OP_CHAINMASK_UPDATE; - if (is_ht) { + if (is_ht || + (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) { sc->sc_tx_chainmask = sc->sc_ah->ah_caps.tx_chainmask; sc->sc_rx_chainmask = sc->sc_ah->ah_caps.rx_chainmask; } else { @@ -1519,6 +1521,9 @@ static int ath_init(u16 devid, struct ath_softc *sc) sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; } + if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_BT_COEX) + ath9k_hw_btcoex_enable(sc->sc_ah); + return 0; bad2: /* cleanup tx queues */ diff --git a/drivers/net/wireless/ath9k/reg.h b/drivers/net/wireless/ath9k/reg.h index 8cc9beff5ec..9a615224e4f 100644 --- a/drivers/net/wireless/ath9k/reg.h +++ b/drivers/net/wireless/ath9k/reg.h @@ -897,14 +897,24 @@ enum { #define AR_GPIO_INTR_POL_VAL_S 0 #define AR_GPIO_INPUT_EN_VAL 0x4054 +#define AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_DEF 0x00000004 +#define AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_S 2 +#define AR_GPIO_INPUT_EN_VAL_BT_FREQUENCY_DEF 0x00000008 +#define AR_GPIO_INPUT_EN_VAL_BT_FREQUENCY_S 3 +#define AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_DEF 0x00000010 +#define AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_S 4 #define AR_GPIO_INPUT_EN_VAL_RFSILENT_DEF 0x00000080 #define AR_GPIO_INPUT_EN_VAL_RFSILENT_DEF_S 7 +#define AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB 0x00001000 +#define AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB_S 12 #define AR_GPIO_INPUT_EN_VAL_RFSILENT_BB 0x00008000 #define AR_GPIO_INPUT_EN_VAL_RFSILENT_BB_S 15 #define AR_GPIO_RTC_RESET_OVERRIDE_ENABLE 0x00010000 #define AR_GPIO_JTAG_DISABLE 0x00020000 #define AR_GPIO_INPUT_MUX1 0x4058 +#define AR_GPIO_INPUT_MUX1_BT_ACTIVE 0x000f0000 +#define AR_GPIO_INPUT_MUX1_BT_ACTIVE_S 16 #define AR_GPIO_INPUT_MUX2 0x405c #define AR_GPIO_INPUT_MUX2_CLK25 0x0000000f |