gpio.c revision 5b68138e5659cbfd5df2879d17f9ba0b66477fec
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 446de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau if (sc->sc_ah->led_pin < 0) { 456de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau if (AR_SREV_9287(sc->sc_ah)) 466de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau sc->sc_ah->led_pin = ATH_LED_PIN_9287; 476de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau else if (AR_SREV_9485(sc->sc_ah)) 486de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau sc->sc_ah->led_pin = ATH_LED_PIN_9485; 49353e5019e048562dc8f434c6237d41ef5e758922Senthil Balasubramanian else if (AR_SREV_9300(sc->sc_ah)) 50353e5019e048562dc8f434c6237d41ef5e758922Senthil Balasubramanian sc->sc_ah->led_pin = ATH_LED_PIN_9300; 516de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau else 526de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau sc->sc_ah->led_pin = ATH_LED_PIN_DEF; 536de66dd963ddd669667a81a2401f2fd6472ff55cFelix Fietkau } 540fca65c1c0569d6a143e978b6f4974c519033e63Sujith 550fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* Configure gpio 1 for output */ 560fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin, 570fca65c1c0569d6a143e978b6f4974c519033e63Sujith AR_GPIO_OUTPUT_MUX_AS_OUTPUT); 580fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* LED off, active low */ 590fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); 600fca65c1c0569d6a143e978b6f4974c519033e63Sujith 610cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau if (!led_blink) 620cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_cdev.default_trigger = 630cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau ieee80211_get_radio_led_name(sc->hw); 640cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau 650cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau snprintf(sc->led_name, sizeof(sc->led_name), 660cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau "ath9k-%s", wiphy_name(sc->hw->wiphy)); 670cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_cdev.name = sc->led_name; 680cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_cdev.brightness_set = ath_led_brightness; 690cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau 700cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev); 710cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau if (ret < 0) 720cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau return; 730cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau 740cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau sc->led_registered = true; 750fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 760cf55c21ec401632043db2b8acb7cd3bef64c9e6Felix Fietkau#endif 770fca65c1c0569d6a143e978b6f4974c519033e63Sujith 780fca65c1c0569d6a143e978b6f4974c519033e63Sujith/*******************/ 790fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* Rfkill */ 800fca65c1c0569d6a143e978b6f4974c519033e63Sujith/*******************/ 810fca65c1c0569d6a143e978b6f4974c519033e63Sujith 820fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic bool ath_is_rfkill_set(struct ath_softc *sc) 830fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 840fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 850fca65c1c0569d6a143e978b6f4974c519033e63Sujith 860fca65c1c0569d6a143e978b6f4974c519033e63Sujith return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == 870fca65c1c0569d6a143e978b6f4974c519033e63Sujith ah->rfkill_polarity; 880fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 890fca65c1c0569d6a143e978b6f4974c519033e63Sujith 900fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath9k_rfkill_poll_state(struct ieee80211_hw *hw) 910fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 929ac58615d93c8a28b1c649a90a5e2ede4dfd368aFelix Fietkau struct ath_softc *sc = hw->priv; 930fca65c1c0569d6a143e978b6f4974c519033e63Sujith bool blocked = !!ath_is_rfkill_set(sc); 940fca65c1c0569d6a143e978b6f4974c519033e63Sujith 950fca65c1c0569d6a143e978b6f4974c519033e63Sujith wiphy_rfkill_set_hw_state(hw->wiphy, blocked); 960fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 970fca65c1c0569d6a143e978b6f4974c519033e63Sujith 980fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath_start_rfkill_poll(struct ath_softc *sc) 990fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1000fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 1010fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1020fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) 1030fca65c1c0569d6a143e978b6f4974c519033e63Sujith wiphy_rfkill_start_polling(sc->hw->wiphy); 1040fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1050fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1060fca65c1c0569d6a143e978b6f4974c519033e63Sujith/******************/ 1070fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* BTCOEX */ 1080fca65c1c0569d6a143e978b6f4974c519033e63Sujith/******************/ 1090fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1100fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 1110fca65c1c0569d6a143e978b6f4974c519033e63Sujith * Detects if there is any priority bt traffic 1120fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 1130fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath_detect_bt_priority(struct ath_softc *sc) 1140fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1150fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 1160fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 1170fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1180fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio)) 1190fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_cnt++; 1200fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1210fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (time_after(jiffies, btcoex->bt_priority_time + 1220fca65c1c0569d6a143e978b6f4974c519033e63Sujith msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { 12358da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan sc->sc_flags &= ~(SC_OP_BT_PRIORITY_DETECTED | SC_OP_BT_SCAN); 12458da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan /* Detect if colocated bt started scanning */ 12558da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) { 126226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, 127226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches "BT scan detected\n"); 12858da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan sc->sc_flags |= (SC_OP_BT_SCAN | 12958da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan SC_OP_BT_PRIORITY_DETECTED); 13058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { 131226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, 132226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches "BT priority traffic detected\n"); 1330fca65c1c0569d6a143e978b6f4974c519033e63Sujith sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED; 1340fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1350fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1360fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_cnt = 0; 1370fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_time = jiffies; 1380fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1390fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1400fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1410fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath9k_gen_timer_start(struct ath_hw *ah, 1420fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_gen_timer *timer, 143788f6875fcf5d2bce221fbfd2318ac48df299031Vasanthakumar Thiagarajan u32 trig_timeout, 1440fca65c1c0569d6a143e978b6f4974c519033e63Sujith u32 timer_period) 1450fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 146788f6875fcf5d2bce221fbfd2318ac48df299031Vasanthakumar Thiagarajan ath9k_hw_gen_timer_start(ah, timer, trig_timeout, timer_period); 1470fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1483069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin if ((ah->imask & ATH9K_INT_GENTIMER) == 0) { 1494df3071ebd92ef7115b409da64d0eb405d24a631Felix Fietkau ath9k_hw_disable_interrupts(ah); 1503069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin ah->imask |= ATH9K_INT_GENTIMER; 1513069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin ath9k_hw_set_interrupts(ah, ah->imask); 1520fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1530fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1540fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1550fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) 1560fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1570fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; 1580fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1590fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_hw_gen_timer_stop(ah, timer); 1600fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1610fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* if no timer is enabled, turn off interrupt mask */ 1620fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (timer_table->timer_mask.val == 0) { 1634df3071ebd92ef7115b409da64d0eb405d24a631Felix Fietkau ath9k_hw_disable_interrupts(ah); 1643069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin ah->imask &= ~ATH9K_INT_GENTIMER; 1653069168c82d65f88e4ac76eda09baff02adfd743Pavel Roskin ath9k_hw_set_interrupts(ah, ah->imask); 1660fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 1670fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 1680fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1690fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 1700fca65c1c0569d6a143e978b6f4974c519033e63Sujith * This is the master bt coex timer which runs for every 1710fca65c1c0569d6a143e978b6f4974c519033e63Sujith * 45ms, bt traffic will be given priority during 55% of this 1720fca65c1c0569d6a143e978b6f4974c519033e63Sujith * period while wlan gets remaining 45% 1730fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 1740fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath_btcoex_period_timer(unsigned long data) 1750fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 1760fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_softc *sc = (struct ath_softc *) data; 1770fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 1780fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 17958da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan u32 timer_period; 18058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan bool is_btscan; 1810fca65c1c0569d6a143e978b6f4974c519033e63Sujith 182a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_wakeup(sc); 1830fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath_detect_bt_priority(sc); 1840fca65c1c0569d6a143e978b6f4974c519033e63Sujith 18558da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan is_btscan = sc->sc_flags & SC_OP_BT_SCAN; 18658da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan 1870fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_lock_bh(&btcoex->btcoex_lock); 1880fca65c1c0569d6a143e978b6f4974c519033e63Sujith 189978f78bf71372a48785ac9407ebc10170f14f56cVivek Natarajan ath9k_hw_btcoex_bt_stomp(ah, is_btscan ? ATH_BTCOEX_STOMP_ALL : 19058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->bt_stomp_type); 1910fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1920fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_unlock_bh(&btcoex->btcoex_lock); 1930fca65c1c0569d6a143e978b6f4974c519033e63Sujith 1940fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { 1950fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->hw_timer_enabled) 1960fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); 1970fca65c1c0569d6a143e978b6f4974c519033e63Sujith 19858da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan timer_period = is_btscan ? btcoex->btscan_no_stomp : 19958da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->btcoex_no_stomp; 200788f6875fcf5d2bce221fbfd2318ac48df299031Vasanthakumar Thiagarajan ath9k_gen_timer_start(ah, btcoex->no_stomp_timer, timer_period, 2018eb1dabbd10e067cff671935d3e0c819f8e80d54Felix Fietkau timer_period * 10); 2020fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->hw_timer_enabled = true; 2030fca65c1c0569d6a143e978b6f4974c519033e63Sujith } 2040fca65c1c0569d6a143e978b6f4974c519033e63Sujith 205a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_restore(sc); 2060fca65c1c0569d6a143e978b6f4974c519033e63Sujith mod_timer(&btcoex->period_timer, jiffies + 2070fca65c1c0569d6a143e978b6f4974c519033e63Sujith msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD)); 2080fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2090fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2100fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 2110fca65c1c0569d6a143e978b6f4974c519033e63Sujith * Generic tsf based hw timer which configures weight 2120fca65c1c0569d6a143e978b6f4974c519033e63Sujith * registers to time slice between wlan and bt traffic 2130fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 2140fca65c1c0569d6a143e978b6f4974c519033e63Sujithstatic void ath_btcoex_no_stomp_timer(void *arg) 2150fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 2160fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_softc *sc = (struct ath_softc *)arg; 2170fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 2180fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 219d99eeb87420a6da1f87064c7fa70bdf299699d90Vivek Natarajan struct ath_common *common = ath9k_hw_common(ah); 22058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan bool is_btscan = sc->sc_flags & SC_OP_BT_SCAN; 2210fca65c1c0569d6a143e978b6f4974c519033e63Sujith 222226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches ath_dbg(common, ATH_DBG_BTCOEX, 223226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches "no stomp timer running\n"); 2240fca65c1c0569d6a143e978b6f4974c519033e63Sujith 225a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_wakeup(sc); 2260fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_lock_bh(&btcoex->btcoex_lock); 2270fca65c1c0569d6a143e978b6f4974c519033e63Sujith 22858da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || is_btscan) 229978f78bf71372a48785ac9407ebc10170f14f56cVivek Natarajan ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); 2300fca65c1c0569d6a143e978b6f4974c519033e63Sujith else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) 231978f78bf71372a48785ac9407ebc10170f14f56cVivek Natarajan ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); 2320fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2330fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_unlock_bh(&btcoex->btcoex_lock); 234a039a993496d79d09ae9709c82b545b9800954c9Vivek Natarajan ath9k_ps_restore(sc); 2350fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2360fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2370fca65c1c0569d6a143e978b6f4974c519033e63Sujithint ath_init_btcoex_timer(struct ath_softc *sc) 2380fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 2390fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 2400fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2410fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; 2420fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * 2430fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->btcoex_period / 100; 24458da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) * 24558da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan btcoex->btcoex_period / 100; 2460fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2470fca65c1c0569d6a143e978b6f4974c519033e63Sujith setup_timer(&btcoex->period_timer, ath_btcoex_period_timer, 2480fca65c1c0569d6a143e978b6f4974c519033e63Sujith (unsigned long) sc); 2490fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2500fca65c1c0569d6a143e978b6f4974c519033e63Sujith spin_lock_init(&btcoex->btcoex_lock); 2510fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2520fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah, 2530fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath_btcoex_no_stomp_timer, 2540fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath_btcoex_no_stomp_timer, 2550fca65c1c0569d6a143e978b6f4974c519033e63Sujith (void *) sc, AR_FIRST_NDP_TIMER); 2560fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2570fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (!btcoex->no_stomp_timer) 2580fca65c1c0569d6a143e978b6f4974c519033e63Sujith return -ENOMEM; 2590fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2600fca65c1c0569d6a143e978b6f4974c519033e63Sujith return 0; 2610fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2620fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2630fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 2640fca65c1c0569d6a143e978b6f4974c519033e63Sujith * (Re)start btcoex timers 2650fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 2660fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath9k_btcoex_timer_resume(struct ath_softc *sc) 2670fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 2680fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 2690fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 2700fca65c1c0569d6a143e978b6f4974c519033e63Sujith 271226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches ath_dbg(ath9k_hw_common(ah), ATH_DBG_BTCOEX, 272226afe68fdbd1aa3680158aca0a3631cbd019626Joe Perches "Starting btcoex timers\n"); 2730fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2740fca65c1c0569d6a143e978b6f4974c519033e63Sujith /* make sure duty cycle timer is also stopped when resuming */ 2750fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->hw_timer_enabled) 2760fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); 2770fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2780fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_cnt = 0; 2790fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->bt_priority_time = jiffies; 28058da1318ee92ad3fe7917278d596768bbe441850Vasanthakumar Thiagarajan sc->sc_flags &= ~(SC_OP_BT_PRIORITY_DETECTED | SC_OP_BT_SCAN); 2810fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2820fca65c1c0569d6a143e978b6f4974c519033e63Sujith mod_timer(&btcoex->period_timer, jiffies); 2830fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 2840fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2850fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2860fca65c1c0569d6a143e978b6f4974c519033e63Sujith/* 2870fca65c1c0569d6a143e978b6f4974c519033e63Sujith * Pause btcoex timer and bt duty cycle timer 2880fca65c1c0569d6a143e978b6f4974c519033e63Sujith */ 2890fca65c1c0569d6a143e978b6f4974c519033e63Sujithvoid ath9k_btcoex_timer_pause(struct ath_softc *sc) 2900fca65c1c0569d6a143e978b6f4974c519033e63Sujith{ 2910fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_btcoex *btcoex = &sc->btcoex; 2920fca65c1c0569d6a143e978b6f4974c519033e63Sujith struct ath_hw *ah = sc->sc_ah; 2930fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2940fca65c1c0569d6a143e978b6f4974c519033e63Sujith del_timer_sync(&btcoex->period_timer); 2950fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2960fca65c1c0569d6a143e978b6f4974c519033e63Sujith if (btcoex->hw_timer_enabled) 2970fca65c1c0569d6a143e978b6f4974c519033e63Sujith ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); 2980fca65c1c0569d6a143e978b6f4974c519033e63Sujith 2990fca65c1c0569d6a143e978b6f4974c519033e63Sujith btcoex->hw_timer_enabled = false; 3000fca65c1c0569d6a143e978b6f4974c519033e63Sujith} 301