| /* |
| * 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 |