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-rw-r--r--drivers/net/wireless/ath/ath9k/btcoex.c23
-rw-r--r--drivers/net/wireless/ath/ath9k/btcoex.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.h4
4 files changed, 30 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c
index e8bfb01ee78..55f607b7699 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.c
+++ b/drivers/net/wireless/ath/ath9k/btcoex.c
@@ -19,6 +19,29 @@
static const struct ath_btcoex_config ath_bt_config = { 0, true, true,
ATH_BT_COEX_MODE_SLOTTED, true, true, 2, 5, true };
+static const u16 ath_subsysid_tbl[] = {
+ AR9280_COEX2WIRE_SUBSYSID,
+ AT9285_COEX3WIRE_SA_SUBSYSID,
+ AT9285_COEX3WIRE_DA_SUBSYSID
+};
+
+/*
+ * Checks the subsystem id of the device to see if it
+ * supports btcoex
+ */
+bool ath_btcoex_supported(u16 subsysid)
+{
+ int i;
+
+ if (!subsysid)
+ return false;
+
+ for (i = 0; i < ARRAY_SIZE(ath_subsysid_tbl); i++)
+ if (subsysid == ath_subsysid_tbl[i])
+ return true;
+
+ return false;
+}
/*
* Detects if there is any priority bt traffic
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h
index 45568196c59..f1baf66e2ec 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.h
+++ b/drivers/net/wireless/ath/ath9k/btcoex.h
@@ -79,6 +79,7 @@ struct ath_btcoex_info {
struct ath_gen_timer *no_stomp_timer; /*Timer for no BT stomping*/
};
+bool ath_btcoex_supported(u16 subsysid);
int 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);
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 97a09dba76d..8d77817f67a 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3690,7 +3690,8 @@ void ath9k_hw_fill_cap_info(struct ath_hw *ah)
pCap->num_antcfg_2ghz =
ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
- if (AR_SREV_9280_10_OR_LATER(ah) && btcoex_enable) {
+ if (AR_SREV_9280_10_OR_LATER(ah) &&
+ ath_btcoex_supported(ah->hw_version.subsysid)) {
btcoex_info->btactive_gpio = ATH_BTACTIVE_GPIO;
btcoex_info->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 64ea547adef..9106a0b537d 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -45,6 +45,10 @@
#define AR5416_DEVID_AR9287_PCI 0x002D
#define AR5416_DEVID_AR9287_PCIE 0x002E
+#define AR9280_COEX2WIRE_SUBSYSID 0x309b
+#define AT9285_COEX3WIRE_SA_SUBSYSID 0x30aa
+#define AT9285_COEX3WIRE_DA_SUBSYSID 0x30ab
+
/* Register read/write primitives */
#define REG_WRITE(_ah, _reg, _val) ath9k_iowrite32((_ah), (_reg), (_val))
#define REG_READ(_ah, _reg) ath9k_ioread32((_ah), (_reg))