ath9k: Enable Bluetooth Coexistence support
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index 19144ca..3c026e6 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -3341,6 +3341,12 @@
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 @@
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);
+}