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Sujith0fca65c2010-01-08 10:36:00 +05301/*
Sujith Manoharan5b681382011-05-17 13:36:18 +05302 * Copyright (c) 2008-2011 Atheros Communications Inc.
Sujith0fca65c2010-01-08 10:36:00 +05303 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "ath9k.h"
18
19/********************************/
20/* LED functions */
21/********************************/
22
Felix Fietkau0cf55c22011-02-27 22:26:40 +010023#ifdef CONFIG_MAC80211_LEDS
Sujith0fca65c2010-01-08 10:36:00 +053024static void ath_led_brightness(struct led_classdev *led_cdev,
25 enum led_brightness brightness)
26{
Felix Fietkau0cf55c22011-02-27 22:26:40 +010027 struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev);
28 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, (brightness == LED_OFF));
Sujith0fca65c2010-01-08 10:36:00 +053029}
30
31void ath_deinit_leds(struct ath_softc *sc)
32{
Felix Fietkau0cf55c22011-02-27 22:26:40 +010033 if (!sc->led_registered)
34 return;
35
36 ath_led_brightness(&sc->led_cdev, LED_OFF);
37 led_classdev_unregister(&sc->led_cdev);
Sujith0fca65c2010-01-08 10:36:00 +053038}
39
40void ath_init_leds(struct ath_softc *sc)
41{
Sujith0fca65c2010-01-08 10:36:00 +053042 int ret;
43
Felix Fietkau7b27ba42012-04-12 22:35:57 +020044 if (AR_SREV_9100(sc->sc_ah))
45 return;
46
Felix Fietkau6de66dd2011-03-19 13:55:40 +010047 if (sc->sc_ah->led_pin < 0) {
48 if (AR_SREV_9287(sc->sc_ah))
49 sc->sc_ah->led_pin = ATH_LED_PIN_9287;
50 else if (AR_SREV_9485(sc->sc_ah))
51 sc->sc_ah->led_pin = ATH_LED_PIN_9485;
Senthil Balasubramanian353e5012011-04-22 11:32:08 +053052 else if (AR_SREV_9300(sc->sc_ah))
53 sc->sc_ah->led_pin = ATH_LED_PIN_9300;
Rajkumar Manoharan423e38e2011-10-13 11:00:44 +053054 else if (AR_SREV_9462(sc->sc_ah))
55 sc->sc_ah->led_pin = ATH_LED_PIN_9462;
Felix Fietkau6de66dd2011-03-19 13:55:40 +010056 else
57 sc->sc_ah->led_pin = ATH_LED_PIN_DEF;
58 }
Sujith0fca65c2010-01-08 10:36:00 +053059
60 /* Configure gpio 1 for output */
61 ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin,
62 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
63 /* LED off, active low */
64 ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
65
Felix Fietkau0cf55c22011-02-27 22:26:40 +010066 if (!led_blink)
67 sc->led_cdev.default_trigger =
68 ieee80211_get_radio_led_name(sc->hw);
Sujith0fca65c2010-01-08 10:36:00 +053069
Felix Fietkau0cf55c22011-02-27 22:26:40 +010070 snprintf(sc->led_name, sizeof(sc->led_name),
71 "ath9k-%s", wiphy_name(sc->hw->wiphy));
72 sc->led_cdev.name = sc->led_name;
73 sc->led_cdev.brightness_set = ath_led_brightness;
Sujith0fca65c2010-01-08 10:36:00 +053074
Felix Fietkau0cf55c22011-02-27 22:26:40 +010075 ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev);
76 if (ret < 0)
77 return;
Sujith0fca65c2010-01-08 10:36:00 +053078
Felix Fietkau0cf55c22011-02-27 22:26:40 +010079 sc->led_registered = true;
Sujith0fca65c2010-01-08 10:36:00 +053080}
Felix Fietkau0cf55c22011-02-27 22:26:40 +010081#endif
Sujith0fca65c2010-01-08 10:36:00 +053082
83/*******************/
84/* Rfkill */
85/*******************/
86
87static bool ath_is_rfkill_set(struct ath_softc *sc)
88{
89 struct ath_hw *ah = sc->sc_ah;
Mohammed Shafi Shajakhan90826312011-09-28 16:56:10 +053090 bool is_blocked;
Sujith0fca65c2010-01-08 10:36:00 +053091
Mohammed Shafi Shajakhan90826312011-09-28 16:56:10 +053092 ath9k_ps_wakeup(sc);
93 is_blocked = ath9k_hw_gpio_get(ah, ah->rfkill_gpio) ==
Sujith0fca65c2010-01-08 10:36:00 +053094 ah->rfkill_polarity;
Mohammed Shafi Shajakhan90826312011-09-28 16:56:10 +053095 ath9k_ps_restore(sc);
96
97 return is_blocked;
Sujith0fca65c2010-01-08 10:36:00 +053098}
99
100void ath9k_rfkill_poll_state(struct ieee80211_hw *hw)
101{
Felix Fietkau9ac586152011-01-24 19:23:18 +0100102 struct ath_softc *sc = hw->priv;
Sujith0fca65c2010-01-08 10:36:00 +0530103 bool blocked = !!ath_is_rfkill_set(sc);
104
105 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
106}
107
108void ath_start_rfkill_poll(struct ath_softc *sc)
109{
110 struct ath_hw *ah = sc->sc_ah;
111
112 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
113 wiphy_rfkill_start_polling(sc->hw->wiphy);
114}
115
Sujith Manoharan4daa7762012-02-22 12:40:44 +0530116#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
117
Sujith0fca65c2010-01-08 10:36:00 +0530118/******************/
119/* BTCOEX */
120/******************/
121
122/*
123 * Detects if there is any priority bt traffic
124 */
125static void ath_detect_bt_priority(struct ath_softc *sc)
126{
127 struct ath_btcoex *btcoex = &sc->btcoex;
128 struct ath_hw *ah = sc->sc_ah;
129
130 if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio))
131 btcoex->bt_priority_cnt++;
132
133 if (time_after(jiffies, btcoex->bt_priority_time +
134 msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) {
Sujith Manoharane6930c42012-06-04 16:27:58 +0530135 clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
136 clear_bit(BT_OP_SCAN, &btcoex->op_flags);
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530137 /* Detect if colocated bt started scanning */
138 if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) {
Joe Perchesd2182b62011-12-15 14:55:53 -0800139 ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
Joe Perches226afe62010-12-02 19:12:37 -0800140 "BT scan detected\n");
Sujith Manoharane6930c42012-06-04 16:27:58 +0530141 set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
142 set_bit(BT_OP_SCAN, &btcoex->op_flags);
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530143 } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
Joe Perchesd2182b62011-12-15 14:55:53 -0800144 ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
Joe Perches226afe62010-12-02 19:12:37 -0800145 "BT priority traffic detected\n");
Sujith Manoharane6930c42012-06-04 16:27:58 +0530146 set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
Sujith0fca65c2010-01-08 10:36:00 +0530147 }
148
149 btcoex->bt_priority_cnt = 0;
150 btcoex->bt_priority_time = jiffies;
151 }
152}
153
Sujith0fca65c2010-01-08 10:36:00 +0530154static void ath9k_gen_timer_start(struct ath_hw *ah,
155 struct ath_gen_timer *timer,
Vasanthakumar Thiagarajan788f6872011-04-21 18:33:27 +0530156 u32 trig_timeout,
Sujith0fca65c2010-01-08 10:36:00 +0530157 u32 timer_period)
158{
Vasanthakumar Thiagarajan788f6872011-04-21 18:33:27 +0530159 ath9k_hw_gen_timer_start(ah, timer, trig_timeout, timer_period);
Sujith0fca65c2010-01-08 10:36:00 +0530160
Pavel Roskin30691682010-03-31 18:05:31 -0400161 if ((ah->imask & ATH9K_INT_GENTIMER) == 0) {
Felix Fietkau4df30712010-11-08 20:54:47 +0100162 ath9k_hw_disable_interrupts(ah);
Pavel Roskin30691682010-03-31 18:05:31 -0400163 ah->imask |= ATH9K_INT_GENTIMER;
Felix Fietkau72d874c2011-10-08 20:06:19 +0200164 ath9k_hw_set_interrupts(ah);
Rajkumar Manoharanb037b692011-08-05 18:59:40 +0530165 ath9k_hw_enable_interrupts(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530166 }
167}
168
169static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
170{
Sujith0fca65c2010-01-08 10:36:00 +0530171 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
172
173 ath9k_hw_gen_timer_stop(ah, timer);
174
175 /* if no timer is enabled, turn off interrupt mask */
176 if (timer_table->timer_mask.val == 0) {
Felix Fietkau4df30712010-11-08 20:54:47 +0100177 ath9k_hw_disable_interrupts(ah);
Pavel Roskin30691682010-03-31 18:05:31 -0400178 ah->imask &= ~ATH9K_INT_GENTIMER;
Felix Fietkau72d874c2011-10-08 20:06:19 +0200179 ath9k_hw_set_interrupts(ah);
Rajkumar Manoharanb037b692011-08-05 18:59:40 +0530180 ath9k_hw_enable_interrupts(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530181 }
182}
183
184/*
185 * This is the master bt coex timer which runs for every
186 * 45ms, bt traffic will be given priority during 55% of this
187 * period while wlan gets remaining 45%
188 */
189static void ath_btcoex_period_timer(unsigned long data)
190{
191 struct ath_softc *sc = (struct ath_softc *) data;
192 struct ath_hw *ah = sc->sc_ah;
193 struct ath_btcoex *btcoex = &sc->btcoex;
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530194 u32 timer_period;
195 bool is_btscan;
Sujith0fca65c2010-01-08 10:36:00 +0530196
Vivek Natarajana039a992011-04-26 10:39:55 +0530197 ath9k_ps_wakeup(sc);
Rajkumar Manoharan7dc181c2011-10-24 18:19:49 +0530198 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
199 ath_detect_bt_priority(sc);
Sujith Manoharane6930c42012-06-04 16:27:58 +0530200 is_btscan = test_bit(BT_OP_SCAN, &btcoex->op_flags);
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530201
Sujith0fca65c2010-01-08 10:36:00 +0530202 spin_lock_bh(&btcoex->btcoex_lock);
203
Vivek Natarajan978f78b2011-04-26 10:39:52 +0530204 ath9k_hw_btcoex_bt_stomp(ah, is_btscan ? ATH_BTCOEX_STOMP_ALL :
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530205 btcoex->bt_stomp_type);
Sujith0fca65c2010-01-08 10:36:00 +0530206
Rajkumar Manoharanbc6d5c22011-11-12 19:35:46 +0530207 ath9k_hw_btcoex_enable(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530208 spin_unlock_bh(&btcoex->btcoex_lock);
209
210 if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) {
211 if (btcoex->hw_timer_enabled)
212 ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer);
213
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530214 timer_period = is_btscan ? btcoex->btscan_no_stomp :
215 btcoex->btcoex_no_stomp;
Vasanthakumar Thiagarajan788f6872011-04-21 18:33:27 +0530216 ath9k_gen_timer_start(ah, btcoex->no_stomp_timer, timer_period,
Felix Fietkau8eb1dab2010-10-15 20:03:32 +0200217 timer_period * 10);
Sujith0fca65c2010-01-08 10:36:00 +0530218 btcoex->hw_timer_enabled = true;
219 }
220
Vivek Natarajana039a992011-04-26 10:39:55 +0530221 ath9k_ps_restore(sc);
Rajkumar Manoharan7dc181c2011-10-24 18:19:49 +0530222 timer_period = btcoex->btcoex_period / 1000;
Sujith Manoharane6930c42012-06-04 16:27:58 +0530223 mod_timer(&btcoex->period_timer, jiffies + msecs_to_jiffies(timer_period));
Sujith0fca65c2010-01-08 10:36:00 +0530224}
225
226/*
227 * Generic tsf based hw timer which configures weight
228 * registers to time slice between wlan and bt traffic
229 */
230static void ath_btcoex_no_stomp_timer(void *arg)
231{
232 struct ath_softc *sc = (struct ath_softc *)arg;
233 struct ath_hw *ah = sc->sc_ah;
234 struct ath_btcoex *btcoex = &sc->btcoex;
Vivek Natarajand99eeb82010-08-18 19:57:48 +0530235 struct ath_common *common = ath9k_hw_common(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530236
Joe Perchesd2182b62011-12-15 14:55:53 -0800237 ath_dbg(common, BTCOEX, "no stomp timer running\n");
Sujith0fca65c2010-01-08 10:36:00 +0530238
Vivek Natarajana039a992011-04-26 10:39:55 +0530239 ath9k_ps_wakeup(sc);
Sujith0fca65c2010-01-08 10:36:00 +0530240 spin_lock_bh(&btcoex->btcoex_lock);
241
Sujith Manoharane6930c42012-06-04 16:27:58 +0530242 if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW ||
243 test_bit(BT_OP_SCAN, &btcoex->op_flags))
Vivek Natarajan978f78b2011-04-26 10:39:52 +0530244 ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
Sujith0fca65c2010-01-08 10:36:00 +0530245 else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL)
Vivek Natarajan978f78b2011-04-26 10:39:52 +0530246 ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW);
Sujith0fca65c2010-01-08 10:36:00 +0530247
Rajkumar Manoharanbc6d5c22011-11-12 19:35:46 +0530248 ath9k_hw_btcoex_enable(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530249 spin_unlock_bh(&btcoex->btcoex_lock);
Vivek Natarajana039a992011-04-26 10:39:55 +0530250 ath9k_ps_restore(sc);
Sujith0fca65c2010-01-08 10:36:00 +0530251}
252
Sujith Manoharandf198b12012-02-22 12:40:27 +0530253static int ath_init_btcoex_timer(struct ath_softc *sc)
Sujith0fca65c2010-01-08 10:36:00 +0530254{
255 struct ath_btcoex *btcoex = &sc->btcoex;
256
257 btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000;
258 btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
259 btcoex->btcoex_period / 100;
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530260 btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) *
261 btcoex->btcoex_period / 100;
Sujith0fca65c2010-01-08 10:36:00 +0530262
263 setup_timer(&btcoex->period_timer, ath_btcoex_period_timer,
264 (unsigned long) sc);
265
266 spin_lock_init(&btcoex->btcoex_lock);
267
268 btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah,
269 ath_btcoex_no_stomp_timer,
270 ath_btcoex_no_stomp_timer,
271 (void *) sc, AR_FIRST_NDP_TIMER);
272
273 if (!btcoex->no_stomp_timer)
274 return -ENOMEM;
275
276 return 0;
277}
278
279/*
280 * (Re)start btcoex timers
281 */
282void ath9k_btcoex_timer_resume(struct ath_softc *sc)
283{
284 struct ath_btcoex *btcoex = &sc->btcoex;
285 struct ath_hw *ah = sc->sc_ah;
286
Joe Perchesd2182b62011-12-15 14:55:53 -0800287 ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n");
Sujith0fca65c2010-01-08 10:36:00 +0530288
289 /* make sure duty cycle timer is also stopped when resuming */
290 if (btcoex->hw_timer_enabled)
291 ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
292
293 btcoex->bt_priority_cnt = 0;
294 btcoex->bt_priority_time = jiffies;
Sujith Manoharane6930c42012-06-04 16:27:58 +0530295 btcoex->op_flags &= ~(BT_OP_PRIORITY_DETECTED | BT_OP_SCAN);
Sujith0fca65c2010-01-08 10:36:00 +0530296
297 mod_timer(&btcoex->period_timer, jiffies);
298}
299
300
301/*
302 * Pause btcoex timer and bt duty cycle timer
303 */
304void ath9k_btcoex_timer_pause(struct ath_softc *sc)
305{
306 struct ath_btcoex *btcoex = &sc->btcoex;
307 struct ath_hw *ah = sc->sc_ah;
308
Sujith0fca65c2010-01-08 10:36:00 +0530309 del_timer_sync(&btcoex->period_timer);
310
311 if (btcoex->hw_timer_enabled)
312 ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer);
313
314 btcoex->hw_timer_enabled = false;
315}
Sujith Manoharan59081202012-02-22 12:40:21 +0530316
Sujith Manoharanc0ac53f2012-02-22 12:40:38 +0530317u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen)
318{
Sujith Manoharane6930c42012-06-04 16:27:58 +0530319 struct ath_btcoex *btcoex = &sc->btcoex;
Sujith Manoharanc0ac53f2012-02-22 12:40:38 +0530320 struct ath_mci_profile *mci = &sc->btcoex.mci;
321 u16 aggr_limit = 0;
322
323 if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit)
324 aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4;
Sujith Manoharane6930c42012-06-04 16:27:58 +0530325 else if (test_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags))
Sujith Manoharanc0ac53f2012-02-22 12:40:38 +0530326 aggr_limit = min((max_4ms_framelen * 3) / 8,
327 (u32)ATH_AMPDU_LIMIT_MAX);
328
329 return aggr_limit;
330}
331
Sujith Manoharan56ca0db2012-02-22 12:40:32 +0530332void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status)
333{
334 struct ath_hw *ah = sc->sc_ah;
335
336 if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
337 if (status & ATH9K_INT_GENTIMER)
338 ath_gen_timer_isr(sc->sc_ah);
339
Sujith Manoharan9a158582012-02-22 12:41:59 +0530340 if (status & ATH9K_INT_MCI)
Sujith Manoharan56ca0db2012-02-22 12:40:32 +0530341 ath_mci_intr(sc);
342}
343
Sujith Manoharandf198b12012-02-22 12:40:27 +0530344void ath9k_start_btcoex(struct ath_softc *sc)
345{
346 struct ath_hw *ah = sc->sc_ah;
347
348 if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
349 !ah->btcoex_hw.enabled) {
350 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
351 ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
352 AR_STOMP_LOW_WLAN_WGHT);
353 ath9k_hw_btcoex_enable(ah);
354
355 if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
356 ath9k_btcoex_timer_resume(sc);
357 }
358}
359
360void ath9k_stop_btcoex(struct ath_softc *sc)
361{
362 struct ath_hw *ah = sc->sc_ah;
363
364 if (ah->btcoex_hw.enabled &&
365 ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
366 ath9k_hw_btcoex_disable(ah);
367 if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
368 ath9k_btcoex_timer_pause(sc);
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530369 if (AR_SREV_9462(ah))
Sujith Manoharanbff2ec22012-03-12 07:51:07 +0530370 ath_mci_flush_profile(&sc->btcoex.mci);
Sujith Manoharandf198b12012-02-22 12:40:27 +0530371 }
372}
373
Sujith Manoharan59081202012-02-22 12:40:21 +0530374void ath9k_deinit_btcoex(struct ath_softc *sc)
375{
376 if ((sc->btcoex.no_stomp_timer) &&
377 ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_3WIRE)
378 ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);
379
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530380 if (AR_SREV_9462(sc->sc_ah))
Sujith Manoharan59081202012-02-22 12:40:21 +0530381 ath_mci_cleanup(sc);
382}
383
384int ath9k_init_btcoex(struct ath_softc *sc)
385{
386 struct ath_txq *txq;
387 struct ath_hw *ah = sc->sc_ah;
388 int r;
389
Sujith Manoharand68475d2012-02-22 12:40:49 +0530390 ath9k_hw_btcoex_init_scheme(ah);
391
Sujith Manoharan59081202012-02-22 12:40:21 +0530392 switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) {
393 case ATH_BTCOEX_CFG_NONE:
394 break;
395 case ATH_BTCOEX_CFG_2WIRE:
396 ath9k_hw_btcoex_init_2wire(sc->sc_ah);
397 break;
398 case ATH_BTCOEX_CFG_3WIRE:
399 ath9k_hw_btcoex_init_3wire(sc->sc_ah);
400 r = ath_init_btcoex_timer(sc);
401 if (r)
402 return -1;
403 txq = sc->tx.txq_map[WME_AC_BE];
404 ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum);
405 sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530406 if (AR_SREV_9462(ah)) {
407 sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE;
408 INIT_LIST_HEAD(&sc->btcoex.mci.info);
Sujith Manoharan59081202012-02-22 12:40:21 +0530409
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530410 r = ath_mci_setup(sc);
411 if (r)
412 return r;
Sujith Manoharan59081202012-02-22 12:40:21 +0530413
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530414 ath9k_hw_btcoex_init_mci(ah);
415 }
Sujith Manoharan59081202012-02-22 12:40:21 +0530416
417 break;
418 default:
419 WARN_ON(1);
420 break;
421 }
422
423 return 0;
424}
Sujith Manoharan4daa7762012-02-22 12:40:44 +0530425
426#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */