101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/*
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* Copyright (c) 2009 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef BTCOEX_H
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#define BTCOEX_H
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#define ATH_WLANACTIVE_GPIO 5
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#define ATH_BTACTIVE_GPIO 6
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#define ATH_BTPRIORITY_GPIO 7
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#define ATH_BTCOEX_DEF_BT_PERIOD 45
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#define ATH_BTCOEX_DEF_DUTY_CYCLE 55
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#define ATH_BTCOEX_BMISS_THRESH 50
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#define ATH_BT_PRIORITY_TIME_THRESHOLD 1000 /* ms */
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#define ATH_BT_CNT_THRESHOLD 3
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enum ath_btcoex_scheme {
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ATH_BTCOEX_CFG_NONE,
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ATH_BTCOEX_CFG_2WIRE,
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ATH_BTCOEX_CFG_3WIRE,
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};
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enum ath_stomp_type {
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ATH_BTCOEX_NO_STOMP,
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ATH_BTCOEX_STOMP_ALL,
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ATH_BTCOEX_STOMP_LOW,
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ATH_BTCOEX_STOMP_NONE
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};
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enum ath_bt_mode {
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ATH_BT_COEX_MODE_LEGACY, /* legacy rx_clear mode */
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ATH_BT_COEX_MODE_UNSLOTTED, /* untimed/unslotted mode */
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ATH_BT_COEX_MODE_SLOTTED, /* slotted mode */
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ATH_BT_COEX_MODE_DISALBED, /* coexistence disabled */
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};
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struct ath_btcoex_config {
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u8 bt_time_extend;
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bool bt_txstate_extend;
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bool bt_txframe_extend;
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enum ath_bt_mode bt_mode; /* coexistence mode */
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bool bt_quiet_collision;
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bool bt_rxclear_polarity; /* invert rx_clear as WLAN_ACTIVE*/
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u8 bt_priority_time;
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u8 bt_first_slot_time;
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bool bt_hold_rx_clear;
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};
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struct ath_btcoex_info {
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enum ath_btcoex_scheme btcoex_scheme;
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u8 wlanactive_gpio;
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u8 btactive_gpio;
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u8 btpriority_gpio;
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u8 bt_duty_cycle; /* BT duty cycle in percentage */
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int bt_stomp_type; /* Types of BT stomping */
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u32 bt_coex_mode; /* Register setting for AR_BT_COEX_MODE */
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u32 bt_coex_weights; /* Register setting for AR_BT_COEX_WEIGHT */
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u32 bt_coex_mode2; /* Register setting for AR_BT_COEX_MODE2 */
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u32 btcoex_no_stomp; /* in usec */
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u32 btcoex_period; /* in usec */
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u32 bt_priority_cnt;
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unsigned long bt_priority_time;
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bool hw_timer_enabled;
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spinlock_t btcoex_lock;
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struct timer_list period_timer; /* Timer for BT period */
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struct ath_gen_timer *no_stomp_timer; /*Timer for no BT stomping*/
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};
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bool ath_btcoex_supported(u16 subsysid);
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int ath9k_hw_btcoex_init(struct ath_hw *ah);
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void ath9k_hw_btcoex_enable(struct ath_hw *ah);
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void ath9k_hw_btcoex_disable(struct ath_hw *ah);
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void ath_btcoex_timer_resume(struct ath_softc *sc,
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struct ath_btcoex_info *btinfo);
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void ath_btcoex_timer_pause(struct ath_softc *sc,
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struct ath_btcoex_info *btinfo);
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static inline void ath_btcoex_set_weight(struct ath_btcoex_info *btcoex_info,
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u32 bt_weight,
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u32 wlan_weight)
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{
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btcoex_info->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) |
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SM(wlan_weight, AR_BTCOEX_WL_WGHT);
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}
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#endif
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