Commit c97c92d9 authored by Vasanthakumar Thiagarajan's avatar Vasanthakumar Thiagarajan Committed by John W. Linville

ath9k: Enable Bluetooth Coexistence support

Signed-off-by: default avatarVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7d969204
......@@ -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
......@@ -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);
}
......@@ -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 */
......
......@@ -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
......
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