gpio.c revision 7b27ba4e9c8053ca73e2b21ece804f7e80c07ba3
10fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 25b68138e5659cbfd5df2879d17f9ba0b66477fecSujith Manoharan * Copyright (c) 2008-2011 Atheros Communications Inc. 30fca65c1c0569d6a143e978b6f4974c519033e63Sujith * 40fca65c1c0569d6a143e978b6f4974c519033e63Sujith * Permission to use, copy, modify, and/or distribute this software for any 50fca65c1c0569d6a143e978b6f4974c519033e63Sujith * purpose with or without fee is hereby granted, provided that the above 60fca65c1c0569d6a143e978b6f4974c519033e63Sujith * copyright notice and this permission notice appear in all copies. 70fca65c1c0569d6a143e978b6f4974c519033e63Sujith * 80fca65c1c0569d6a143e978b6f4974c519033e63Sujith * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 90fca65c1c0569d6a143e978b6f4974c519033e63Sujith * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 100fca65c1c0569d6a143e978b6f4974c519033e63Sujith * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 110fca65c1c0569d6a143e978b6f4974c519033e63Sujith * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 120fca65c1c0569d6a143e978b6f4974c519033e63Sujith * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 130fca65c1c0569d6a143e978b6f4974c519033e63Sujith * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 140fca65c1c0569d6a143e978b6f4974c519033e63Sujith * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 150fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 160fca65c1c0569d6a143e978b6f4974c519033e63Sujith 170fca65c1c0569d6a143e978b6f4974c519033e63Sujith#include "ath9k.h" 180fca65c1c0569d6a143e978b6f4974c519033e63Sujith 190fca65c1c0569d6a143e978b6f4974c519033e63Sujith/********************************/ 200fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* LED functions */ 210fca65c1c0569d6a143e978b6f4974c519033e63Sujith/********************************/ 220fca65c1c0569d6a143e978b6f4974c519033e63Sujith 230cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau#ifdef CONFIG_MAC80211_LEDS 240fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath_led_brightness(struct led_classdev *led_cdev, 250fca65c1c0569d6a143e978b6f4974c519033e63Sujith enum led_brightness brightness) 260fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 270cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev); 280cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, (brightness == LED_OFF)); 290fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 300fca65c1c0569d6a143e978b6f4974c519033e63Sujith 310fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath_deinit_leds(struct ath_softc *sc) 320fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 330cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau if (!sc->led_registered) 340cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau return; 350cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau 360cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau ath_led_brightness(&sc->led_cdev, LED_OFF); 370cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau led_classdev_unregister(&sc->led_cdev); 380fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 390fca65c1c0569d6a143e978b6f4974c519033e63Sujith 400fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath_init_leds(struct ath_softc *sc) 410fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 420fca65c1c0569d6a143e978b6f4974c519033e63Sujith int ret; 430fca65c1c0569d6a143e978b6f4974c519033e63Sujith 447b27ba4e9c8053ca73e2b21ece804f7e80c07ba3Felix Fietkau if (AR_SREV_9100(sc->sc_ah)) 457b27ba4e9c8053ca73e2b21ece804f7e80c07ba3Felix Fietkau return; 467b27ba4e9c8053ca73e2b21ece804f7e80c07ba3Felix Fietkau 476de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau if (sc->sc_ah->led_pin < 0) { 486de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau if (AR_SREV_9287(sc->sc_ah)) 496de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau sc->sc_ah->led_pin = ATH_LED_PIN_9287; 506de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau else if (AR_SREV_9485(sc->sc_ah)) 516de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau sc->sc_ah->led_pin = ATH_LED_PIN_9485; 52353e5019e048562dc8f434c6237d41ef5e758922Senthil Balasubramanian else if (AR_SREV_9300(sc->sc_ah)) 53353e5019e048562dc8f434c6237d41ef5e758922Senthil Balasubramanian sc->sc_ah->led_pin = ATH_LED_PIN_9300; 54423e38e8079f8f4fe0bf66d4f9a7d61beb232acaRajkumar Manoharan else if (AR_SREV_9462(sc->sc_ah)) 55423e38e8079f8f4fe0bf66d4f9a7d61beb232acaRajkumar Manoharan sc->sc_ah->led_pin = ATH_LED_PIN_9462; 566de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau else 576de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau sc->sc_ah->led_pin = ATH_LED_PIN_DEF; 586de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau } 590fca65c1c0569d6a143e978b6f4974c519033e63Sujith 600fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* Configure gpio 1 for output */ 610fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin, 620fca65c1c0569d6a143e978b6f4974c519033e63Sujith AR_GPIO_OUTPUT_MUX_AS_OUTPUT); 630fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* LED off, active low */ 640fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); 650fca65c1c0569d6a143e978b6f4974c519033e63Sujith 660cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau if (!led_blink) 670cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_cdev.default_trigger = 680cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau ieee80211_get_radio_led_name(sc->hw); 690cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau 700cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau snprintf(sc->led_name, sizeof(sc->led_name), 710cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau "ath9k-%s", wiphy_name(sc->hw->wiphy)); 720cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_cdev.name = sc->led_name; 730cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_cdev.brightness_set = ath_led_brightness; 740cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau 750cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev); 760cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau if (ret < 0) 770cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau return; 780cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau 790cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_registered = true; 800fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 810cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau#endif 820fca65c1c0569d6a143e978b6f4974c519033e63Sujith 830fca65c1c0569d6a143e978b6f4974c519033e63Sujith/*******************/ 840fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* Rfkill */ 850fca65c1c0569d6a143e978b6f4974c519033e63Sujith/*******************/ 860fca65c1c0569d6a143e978b6f4974c519033e63Sujith 870fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic bool ath_is_rfkill_set(struct ath_softc *sc) 880fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 890fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 9090826313fd69d198da7574779460f793765abfa5Mohammed Shafi Shajakhan bool is_blocked; 910fca65c1c0569d6a143e978b6f4974c519033e63Sujith 9290826313fd69d198da7574779460f793765abfa5Mohammed Shafi Shajakhan ath9k_ps_wakeup(sc); 9390826313fd69d198da7574779460f793765abfa5Mohammed Shafi Shajakhan is_blocked = ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == 940fca65c1c0569d6a143e978b6f4974c519033e63Sujith ah->rfkill_polarity; 9590826313fd69d198da7574779460f793765abfa5Mohammed Shafi Shajakhan ath9k_ps_restore(sc); 9690826313fd69d198da7574779460f793765abfa5Mohammed Shafi Shajakhan 9790826313fd69d198da7574779460f793765abfa5Mohammed Shafi Shajakhan return is_blocked; 980fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 990fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1000fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath9k_rfkill_poll_state(struct ieee80211_hw *hw) 1010fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1029ac58615d93c8a28b1c649a90a5e2ede4dfd368aFelix Fietkau struct ath_softc *sc = hw->priv; 1030fca65c1c0569d6a143e978b6f4974c519033e63Sujith bool blocked = !!ath_is_rfkill_set(sc); 1040fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1050fca65c1c0569d6a143e978b6f4974c519033e63Sujith wiphy_rfkill_set_hw_state(hw->wiphy, blocked); 1060fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1070fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1080fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath_start_rfkill_poll(struct ath_softc *sc) 1090fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1100fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 1110fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1120fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) 1130fca65c1c0569d6a143e978b6f4974c519033e63Sujith wiphy_rfkill_start_polling(sc->hw->wiphy); 1140fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1150fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1164daa7760e2da9324e740f7d872970fa91c8ea6f0Sujith Manoharan#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT 1174daa7760e2da9324e740f7d872970fa91c8ea6f0Sujith Manoharan 1180fca65c1c0569d6a143e978b6f4974c519033e63Sujith/******************/ 1190fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* BTCOEX */ 1200fca65c1c0569d6a143e978b6f4974c519033e63Sujith/******************/ 1210fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1220fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 1230fca65c1c0569d6a143e978b6f4974c519033e63Sujith * Detects if there is any priority bt traffic 1240fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 1250fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath_detect_bt_priority(struct ath_softc *sc) 1260fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1270fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 1280fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 1290fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1300fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio)) 1310fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_cnt++; 1320fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1330fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (time_after(jiffies, btcoex->bt_priority_time + 1340fca65c1c0569d6a143e978b6f4974c519033e63Sujith msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { 13558da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan sc->sc_flags &= ~(SC_OP_BT_PRIORITY_DETECTED | SC_OP_BT_SCAN); 13658da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan /* Detect if colocated bt started scanning */ 13758da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) { 138d2182b69dcb6a68b1ef6070b2efd094e13dea3f1Joe Perches ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX, 139226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches "BT scan detected\n"); 14058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan sc->sc_flags |= (SC_OP_BT_SCAN | 14158da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan SC_OP_BT_PRIORITY_DETECTED); 14258da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { 143d2182b69dcb6a68b1ef6070b2efd094e13dea3f1Joe Perches ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX, 144226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches "BT priority traffic detected\n"); 1450fca65c1c0569d6a143e978b6f4974c519033e63Sujith sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED; 1460fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1470fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1480fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_cnt = 0; 1490fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_time = jiffies; 1500fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1510fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1520fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1530fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath9k_gen_timer_start(struct ath_hw *ah, 1540fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_gen_timer *timer, 155788f6875fcf5d2bce221fbfd2318ac48df299031Vasanthakumar Thiagarajan u32 trig_timeout, 1560fca65c1c0569d6a143e978b6f4974c519033e63Sujith u32 timer_period) 1570fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 158788f6875fcf5d2bce221fbfd2318ac48df299031Vasanthakumar Thiagarajan ath9k_hw_gen_timer_start(ah, timer, trig_timeout, timer_period); 1590fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1603069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin if ((ah->imask & ATH9K_INT_GENTIMER) == 0) { 1614df3071ebd92ef7115b409da64d0eb405d24a631Felix Fietkau ath9k_hw_disable_interrupts(ah); 1623069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin ah->imask |= ATH9K_INT_GENTIMER; 16372d874c67c3cdf21ca95045baabac6a5843222d8Felix Fietkau ath9k_hw_set_interrupts(ah); 164b037b693265e5c83ddc3f003a713d19b9832bf24Rajkumar Manoharan ath9k_hw_enable_interrupts(ah); 1650fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1660fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1670fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1680fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) 1690fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1700fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; 1710fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1720fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_hw_gen_timer_stop(ah, timer); 1730fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1740fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* if no timer is enabled, turn off interrupt mask */ 1750fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (timer_table->timer_mask.val == 0) { 1764df3071ebd92ef7115b409da64d0eb405d24a631Felix Fietkau ath9k_hw_disable_interrupts(ah); 1773069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin ah->imask &= ~ATH9K_INT_GENTIMER; 17872d874c67c3cdf21ca95045baabac6a5843222d8Felix Fietkau ath9k_hw_set_interrupts(ah); 179b037b693265e5c83ddc3f003a713d19b9832bf24Rajkumar Manoharan ath9k_hw_enable_interrupts(ah); 1800fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1810fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1820fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1830fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 1840fca65c1c0569d6a143e978b6f4974c519033e63Sujith * This is the master bt coex timer which runs for every 1850fca65c1c0569d6a143e978b6f4974c519033e63Sujith * 45ms, bt traffic will be given priority during 55% of this 1860fca65c1c0569d6a143e978b6f4974c519033e63Sujith * period while wlan gets remaining 45% 1870fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 1880fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath_btcoex_period_timer(unsigned long data) 1890fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1900fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_softc *sc = (struct ath_softc *) data; 1910fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 1920fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 19358da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan u32 timer_period; 19458da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan bool is_btscan; 1950fca65c1c0569d6a143e978b6f4974c519033e63Sujith 196a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_wakeup(sc); 1977dc181c273861c4d96991f59a4fdcda3a3eaccaeRajkumar Manoharan if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) 1987dc181c273861c4d96991f59a4fdcda3a3eaccaeRajkumar Manoharan ath_detect_bt_priority(sc); 19958da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan is_btscan = sc->sc_flags & SC_OP_BT_SCAN; 20058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan 2010fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_lock_bh(&btcoex->btcoex_lock); 2020fca65c1c0569d6a143e978b6f4974c519033e63Sujith 203978f78bf71372a48785ac9407ebc10170f14f56cVivek Natarajan ath9k_hw_btcoex_bt_stomp(ah, is_btscan ? ATH_BTCOEX_STOMP_ALL : 20458da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->bt_stomp_type); 2050fca65c1c0569d6a143e978b6f4974c519033e63Sujith 206bc6d5c29afa724901c2feb7e4446c6eec7788cecRajkumar Manoharan ath9k_hw_btcoex_enable(ah); 2070fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_unlock_bh(&btcoex->btcoex_lock); 2080fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2090fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { 2100fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->hw_timer_enabled) 2110fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); 2120fca65c1c0569d6a143e978b6f4974c519033e63Sujith 21358da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan timer_period = is_btscan ? btcoex->btscan_no_stomp : 21458da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->btcoex_no_stomp; 215788f6875fcf5d2bce221fbfd2318ac48df299031Vasanthakumar Thiagarajan ath9k_gen_timer_start(ah, btcoex->no_stomp_timer, timer_period, 2168eb1dabbd10e067cff671935d3e0c819f8e80d54Felix Fietkau timer_period * 10); 2170fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->hw_timer_enabled = true; 2180fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 2190fca65c1c0569d6a143e978b6f4974c519033e63Sujith 220a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_restore(sc); 2217dc181c273861c4d96991f59a4fdcda3a3eaccaeRajkumar Manoharan timer_period = btcoex->btcoex_period / 1000; 2220fca65c1c0569d6a143e978b6f4974c519033e63Sujith mod_timer(&btcoex->period_timer, jiffies + 2237dc181c273861c4d96991f59a4fdcda3a3eaccaeRajkumar Manoharan msecs_to_jiffies(timer_period)); 2240fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2250fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2260fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 2270fca65c1c0569d6a143e978b6f4974c519033e63Sujith * Generic tsf based hw timer which configures weight 2280fca65c1c0569d6a143e978b6f4974c519033e63Sujith * registers to time slice between wlan and bt traffic 2290fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 2300fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath_btcoex_no_stomp_timer(void *arg) 2310fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 2320fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_softc *sc = (struct ath_softc *)arg; 2330fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 2340fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 235d99eeb87420a6da1f87064c7fa70bdf299699d90Vivek Natarajan struct ath_common *common = ath9k_hw_common(ah); 23658da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan bool is_btscan = sc->sc_flags & SC_OP_BT_SCAN; 2370fca65c1c0569d6a143e978b6f4974c519033e63Sujith 238d2182b69dcb6a68b1ef6070b2efd094e13dea3f1Joe Perches ath_dbg(common, BTCOEX, "no stomp timer running\n"); 2390fca65c1c0569d6a143e978b6f4974c519033e63Sujith 240a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_wakeup(sc); 2410fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_lock_bh(&btcoex->btcoex_lock); 2420fca65c1c0569d6a143e978b6f4974c519033e63Sujith 24358da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || is_btscan) 244978f78bf71372a48785ac9407ebc10170f14f56cVivek Natarajan ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); 2450fca65c1c0569d6a143e978b6f4974c519033e63Sujith else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) 246978f78bf71372a48785ac9407ebc10170f14f56cVivek Natarajan ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); 2470fca65c1c0569d6a143e978b6f4974c519033e63Sujith 248bc6d5c29afa724901c2feb7e4446c6eec7788cecRajkumar Manoharan ath9k_hw_btcoex_enable(ah); 2490fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_unlock_bh(&btcoex->btcoex_lock); 250a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_restore(sc); 2510fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2520fca65c1c0569d6a143e978b6f4974c519033e63Sujith 253df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharanstatic int ath_init_btcoex_timer(struct ath_softc *sc) 2540fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 2550fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 2560fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2570fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; 2580fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * 2590fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->btcoex_period / 100; 26058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) * 26158da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->btcoex_period / 100; 2620fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2630fca65c1c0569d6a143e978b6f4974c519033e63Sujith setup_timer(&btcoex->period_timer, ath_btcoex_period_timer, 2640fca65c1c0569d6a143e978b6f4974c519033e63Sujith (unsigned long) sc); 2650fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2660fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_lock_init(&btcoex->btcoex_lock); 2670fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2680fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah, 2690fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath_btcoex_no_stomp_timer, 2700fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath_btcoex_no_stomp_timer, 2710fca65c1c0569d6a143e978b6f4974c519033e63Sujith (void *) sc, AR_FIRST_NDP_TIMER); 2720fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2730fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (!btcoex->no_stomp_timer) 2740fca65c1c0569d6a143e978b6f4974c519033e63Sujith return -ENOMEM; 2750fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2760fca65c1c0569d6a143e978b6f4974c519033e63Sujith return 0; 2770fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2780fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2790fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 2800fca65c1c0569d6a143e978b6f4974c519033e63Sujith * (Re)start btcoex timers 2810fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 2820fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath9k_btcoex_timer_resume(struct ath_softc *sc) 2830fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 2840fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 2850fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 2860fca65c1c0569d6a143e978b6f4974c519033e63Sujith 287d2182b69dcb6a68b1ef6070b2efd094e13dea3f1Joe Perches ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n"); 2880fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2890fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* make sure duty cycle timer is also stopped when resuming */ 2900fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->hw_timer_enabled) 2910fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); 2920fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2930fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_cnt = 0; 2940fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_time = jiffies; 29558da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan sc->sc_flags &= ~(SC_OP_BT_PRIORITY_DETECTED | SC_OP_BT_SCAN); 2960fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2970fca65c1c0569d6a143e978b6f4974c519033e63Sujith mod_timer(&btcoex->period_timer, jiffies); 2980fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2990fca65c1c0569d6a143e978b6f4974c519033e63Sujith 3000fca65c1c0569d6a143e978b6f4974c519033e63Sujith 3010fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 3020fca65c1c0569d6a143e978b6f4974c519033e63Sujith * Pause btcoex timer and bt duty cycle timer 3030fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 3040fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath9k_btcoex_timer_pause(struct ath_softc *sc) 3050fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 3060fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 3070fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 3080fca65c1c0569d6a143e978b6f4974c519033e63Sujith 3090fca65c1c0569d6a143e978b6f4974c519033e63Sujith del_timer_sync(&btcoex->period_timer); 3100fca65c1c0569d6a143e978b6f4974c519033e63Sujith 3110fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->hw_timer_enabled) 3120fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); 3130fca65c1c0569d6a143e978b6f4974c519033e63Sujith 3140fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->hw_timer_enabled = false; 3150fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 3165908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 317c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharanu16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen) 318c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan{ 319c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan struct ath_mci_profile *mci = &sc->btcoex.mci; 320c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan u16 aggr_limit = 0; 321c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan 322c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit) 323c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4; 324c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan else if (sc->sc_flags & SC_OP_BT_PRIORITY_DETECTED) 325c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan aggr_limit = min((max_4ms_framelen * 3) / 8, 326c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan (u32)ATH_AMPDU_LIMIT_MAX); 327c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan 328c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan return aggr_limit; 329c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan} 330c0ac53fa5725aa9e571386d3e7249c1be50eca10Sujith Manoharan 33156ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharanvoid ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status) 33256ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan{ 33356ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan struct ath_hw *ah = sc->sc_ah; 33456ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan 33556ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) 33656ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan if (status & ATH9K_INT_GENTIMER) 33756ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan ath_gen_timer_isr(sc->sc_ah); 33856ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan 3399a15858f0cb9432e29db08dd936c39d20019a484Sujith Manoharan if (status & ATH9K_INT_MCI) 34056ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan ath_mci_intr(sc); 34156ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan} 34256ca0dba9d5fbc2948ed0c3a4fffc51cd875abb9Sujith Manoharan 343df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharanvoid ath9k_start_btcoex(struct ath_softc *sc) 344df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan{ 345df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan struct ath_hw *ah = sc->sc_ah; 346df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan 347df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) && 348df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan !ah->btcoex_hw.enabled) { 349df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) 350df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, 351df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan AR_STOMP_LOW_WLAN_WGHT); 352df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan ath9k_hw_btcoex_enable(ah); 353df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan 354df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) 355df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan ath9k_btcoex_timer_resume(sc); 356df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan } 357df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan} 358df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan 359df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharanvoid ath9k_stop_btcoex(struct ath_softc *sc) 360df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan{ 361df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan struct ath_hw *ah = sc->sc_ah; 362df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan 363df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan if (ah->btcoex_hw.enabled && 364df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) { 365df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan ath9k_hw_btcoex_disable(ah); 366df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) 367df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan ath9k_btcoex_timer_pause(sc); 368bff2ec2b916cc85628f3025e08660c0350f03650Sujith Manoharan if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_MCI) 369bff2ec2b916cc85628f3025e08660c0350f03650Sujith Manoharan ath_mci_flush_profile(&sc->btcoex.mci); 370df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan } 371df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan} 372df198b172f7a14ecf7aefaadb3761c273600333eSujith Manoharan 3735908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharanvoid ath9k_deinit_btcoex(struct ath_softc *sc) 3745908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan{ 3755908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan if ((sc->btcoex.no_stomp_timer) && 3765908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_3WIRE) 3775908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer); 3785908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 3795908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan if (ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_MCI) 3805908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan ath_mci_cleanup(sc); 3815908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan} 3825908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 3835908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharanint ath9k_init_btcoex(struct ath_softc *sc) 3845908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan{ 3855908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan struct ath_txq *txq; 3865908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan struct ath_hw *ah = sc->sc_ah; 3875908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan int r; 3885908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 389d68475de9637a476ad8e5870060ccc69a80f2299Sujith Manoharan ath9k_hw_btcoex_init_scheme(ah); 390d68475de9637a476ad8e5870060ccc69a80f2299Sujith Manoharan 3915908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) { 3925908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan case ATH_BTCOEX_CFG_NONE: 3935908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan break; 3945908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan case ATH_BTCOEX_CFG_2WIRE: 3955908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan ath9k_hw_btcoex_init_2wire(sc->sc_ah); 3965908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan break; 3975908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan case ATH_BTCOEX_CFG_3WIRE: 3985908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan ath9k_hw_btcoex_init_3wire(sc->sc_ah); 3995908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan r = ath_init_btcoex_timer(sc); 4005908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan if (r) 4015908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan return -1; 4025908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan txq = sc->tx.txq_map[WME_AC_BE]; 4035908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum); 4045908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; 4055908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan break; 4065908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan case ATH_BTCOEX_CFG_MCI: 4075908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; 4085908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE; 4095908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan INIT_LIST_HEAD(&sc->btcoex.mci.info); 4105908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 4115908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan r = ath_mci_setup(sc); 4125908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan if (r) 4135908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan return r; 4145908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 4155908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan ath9k_hw_btcoex_init_mci(ah); 4165908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 4175908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan break; 4185908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan default: 4195908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan WARN_ON(1); 4205908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan break; 4215908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan } 4225908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan 4235908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan return 0; 4245908120fdc2aac0cb1be4059b40ec256d55934bcSujith Manoharan} 4254daa7760e2da9324e740f7d872970fa91c8ea6f0Sujith Manoharan 4264daa7760e2da9324e740f7d872970fa91c8ea6f0Sujith Manoharan#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ 427