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- /*
- * 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
- #include "hw.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_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_hw {
- enum ath_btcoex_scheme scheme;
- bool enabled;
- u8 wlanactive_gpio;
- u8 btactive_gpio;
- u8 btpriority_gpio;
- 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 */
- };
- bool ath_btcoex_supported(u16 subsysid);
- void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
- void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
- void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
- void ath9k_hw_btcoex_enable(struct ath_hw *ah);
- void ath9k_hw_btcoex_disable(struct ath_hw *ah);
- #endif
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