1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h
new file mode 100644
index 000000000000..297b027fd3c3
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/btcoex.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2009 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef BTCOEX_H
+#define BTCOEX_H
+
+#define ATH_WLANACTIVE_GPIO	5
+#define ATH_BTACTIVE_GPIO	6
+#define ATH_BTPRIORITY_GPIO	7
+
+#define ATH_BTCOEX_DEF_BT_PERIOD  45
+#define ATH_BTCOEX_DEF_DUTY_CYCLE 55
+#define ATH_BTCOEX_BMISS_THRESH   50
+
+#define ATH_BT_PRIORITY_TIME_THRESHOLD 1000 /* ms */
+#define ATH_BT_CNT_THRESHOLD	       3
+
+enum ath_btcoex_scheme {
+	ATH_BTCOEX_CFG_NONE,
+	ATH_BTCOEX_CFG_2WIRE,
+	ATH_BTCOEX_CFG_3WIRE,
+};
+
+enum ath_stomp_type {
+	ATH_BTCOEX_NO_STOMP,
+	ATH_BTCOEX_STOMP_ALL,
+	ATH_BTCOEX_STOMP_LOW,
+	ATH_BTCOEX_STOMP_NONE
+};
+
+enum ath_bt_mode {
+	ATH_BT_COEX_MODE_LEGACY,	/* legacy rx_clear mode */
+	ATH_BT_COEX_MODE_UNSLOTTED,	/* untimed/unslotted mode */
+	ATH_BT_COEX_MODE_SLOTTED,	/* slotted mode */
+	ATH_BT_COEX_MODE_DISALBED,	/* coexistence disabled */
+};
+
+struct ath_btcoex_config {
+	u8 bt_time_extend;
+	bool bt_txstate_extend;
+	bool bt_txframe_extend;
+	enum ath_bt_mode bt_mode; /* coexistence mode */
+	bool bt_quiet_collision;
+	bool bt_rxclear_polarity; /* invert rx_clear as WLAN_ACTIVE*/
+	u8 bt_priority_time;
+	u8 bt_first_slot_time;
+	bool bt_hold_rx_clear;
+};
+
+struct ath_btcoex_info {
+	enum ath_btcoex_scheme btcoex_scheme;
+	u8 wlanactive_gpio;
+	u8 btactive_gpio;
+	u8 btpriority_gpio;
+	u8 bt_duty_cycle; 	/* BT duty cycle in percentage */
+	int bt_stomp_type; 	/* Types of BT stomping */
+	u32 bt_coex_mode; 	/* Register setting for AR_BT_COEX_MODE */
+	u32 bt_coex_weights; 	/* Register setting for AR_BT_COEX_WEIGHT */
+	u32 bt_coex_mode2; 	/* Register setting for AR_BT_COEX_MODE2 */
+	u32 btcoex_no_stomp;   /* in usec */
+	u32 btcoex_period;     	/* in usec */
+	u32 bt_priority_cnt;
+	unsigned long bt_priority_time;
+	bool hw_timer_enabled;
+	spinlock_t btcoex_lock;
+	struct timer_list period_timer;      /* Timer for BT period */
+	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);
+void ath_btcoex_timer_resume(struct ath_softc *sc,
+			     struct ath_btcoex_info *btinfo);
+void ath_btcoex_timer_pause(struct ath_softc *sc,
+			    struct ath_btcoex_info *btinfo);
+
+static inline void ath_btcoex_set_weight(struct ath_btcoex_info *btcoex_info,
+					 u32 bt_weight,
+					 u32 wlan_weight)
+{
+	btcoex_info->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) |
+				       SM(wlan_weight, AR_BTCOEX_WL_WGHT);
+}
+
+#endif