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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 Fietkau0cf55c22011-02-27 22:26:40 +010047 if (!led_blink)
48 sc->led_cdev.default_trigger =
49 ieee80211_get_radio_led_name(sc->hw);
Sujith0fca65c2010-01-08 10:36:00 +053050
Felix Fietkau0cf55c22011-02-27 22:26:40 +010051 snprintf(sc->led_name, sizeof(sc->led_name),
52 "ath9k-%s", wiphy_name(sc->hw->wiphy));
53 sc->led_cdev.name = sc->led_name;
54 sc->led_cdev.brightness_set = ath_led_brightness;
Sujith0fca65c2010-01-08 10:36:00 +053055
Felix Fietkau0cf55c22011-02-27 22:26:40 +010056 ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev);
57 if (ret < 0)
58 return;
Sujith0fca65c2010-01-08 10:36:00 +053059
Felix Fietkau0cf55c22011-02-27 22:26:40 +010060 sc->led_registered = true;
Sujith0fca65c2010-01-08 10:36:00 +053061}
Rajkumar Manoharan8f176a32012-09-12 18:59:23 +053062
63void ath_fill_led_pin(struct ath_softc *sc)
64{
65 struct ath_hw *ah = sc->sc_ah;
66
67 if (AR_SREV_9100(ah) || (ah->led_pin >= 0))
68 return;
69
70 if (AR_SREV_9287(ah))
71 ah->led_pin = ATH_LED_PIN_9287;
72 else if (AR_SREV_9485(sc->sc_ah))
73 ah->led_pin = ATH_LED_PIN_9485;
74 else if (AR_SREV_9300(sc->sc_ah))
75 ah->led_pin = ATH_LED_PIN_9300;
76 else if (AR_SREV_9462(sc->sc_ah) || AR_SREV_9565(sc->sc_ah))
77 ah->led_pin = ATH_LED_PIN_9462;
78 else
79 ah->led_pin = ATH_LED_PIN_DEF;
80
81 /* Configure gpio 1 for output */
82 ath9k_hw_cfg_output(ah, ah->led_pin, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
83
84 /* LED off, active low */
85 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
86}
Felix Fietkau0cf55c22011-02-27 22:26:40 +010087#endif
Sujith0fca65c2010-01-08 10:36:00 +053088
89/*******************/
90/* Rfkill */
91/*******************/
92
93static bool ath_is_rfkill_set(struct ath_softc *sc)
94{
95 struct ath_hw *ah = sc->sc_ah;
Mohammed Shafi Shajakhan90826312011-09-28 16:56:10 +053096 bool is_blocked;
Sujith0fca65c2010-01-08 10:36:00 +053097
Mohammed Shafi Shajakhan90826312011-09-28 16:56:10 +053098 ath9k_ps_wakeup(sc);
99 is_blocked = ath9k_hw_gpio_get(ah, ah->rfkill_gpio) ==
Sujith0fca65c2010-01-08 10:36:00 +0530100 ah->rfkill_polarity;
Mohammed Shafi Shajakhan90826312011-09-28 16:56:10 +0530101 ath9k_ps_restore(sc);
102
103 return is_blocked;
Sujith0fca65c2010-01-08 10:36:00 +0530104}
105
106void ath9k_rfkill_poll_state(struct ieee80211_hw *hw)
107{
Felix Fietkau9ac58612011-01-24 19:23:18 +0100108 struct ath_softc *sc = hw->priv;
Sujith0fca65c2010-01-08 10:36:00 +0530109 bool blocked = !!ath_is_rfkill_set(sc);
110
111 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
112}
113
114void ath_start_rfkill_poll(struct ath_softc *sc)
115{
116 struct ath_hw *ah = sc->sc_ah;
117
118 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
119 wiphy_rfkill_start_polling(sc->hw->wiphy);
120}
121
Sujith Manoharan4daa7762012-02-22 12:40:44 +0530122#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
123
Sujith0fca65c2010-01-08 10:36:00 +0530124/******************/
125/* BTCOEX */
126/******************/
127
128/*
129 * Detects if there is any priority bt traffic
130 */
131static void ath_detect_bt_priority(struct ath_softc *sc)
132{
133 struct ath_btcoex *btcoex = &sc->btcoex;
134 struct ath_hw *ah = sc->sc_ah;
135
136 if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio))
137 btcoex->bt_priority_cnt++;
138
139 if (time_after(jiffies, btcoex->bt_priority_time +
140 msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) {
Sujith Manoharane6930c42012-06-04 16:27:58 +0530141 clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
142 clear_bit(BT_OP_SCAN, &btcoex->op_flags);
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530143 /* Detect if colocated bt started scanning */
144 if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) {
Joe Perchesd2182b62011-12-15 14:55:53 -0800145 ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
Joe Perches226afe62010-12-02 19:12:37 -0800146 "BT scan detected\n");
Sujith Manoharane6930c42012-06-04 16:27:58 +0530147 set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
148 set_bit(BT_OP_SCAN, &btcoex->op_flags);
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530149 } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
Joe Perchesd2182b62011-12-15 14:55:53 -0800150 ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
Joe Perches226afe62010-12-02 19:12:37 -0800151 "BT priority traffic detected\n");
Sujith Manoharane6930c42012-06-04 16:27:58 +0530152 set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
Sujith0fca65c2010-01-08 10:36:00 +0530153 }
154
155 btcoex->bt_priority_cnt = 0;
156 btcoex->bt_priority_time = jiffies;
157 }
158}
159
Sujith0fca65c2010-01-08 10:36:00 +0530160static void ath9k_gen_timer_start(struct ath_hw *ah,
161 struct ath_gen_timer *timer,
Vasanthakumar Thiagarajan788f6872011-04-21 18:33:27 +0530162 u32 trig_timeout,
Sujith0fca65c2010-01-08 10:36:00 +0530163 u32 timer_period)
164{
Vasanthakumar Thiagarajan788f6872011-04-21 18:33:27 +0530165 ath9k_hw_gen_timer_start(ah, timer, trig_timeout, timer_period);
Sujith0fca65c2010-01-08 10:36:00 +0530166
Pavel Roskin30691682010-03-31 18:05:31 -0400167 if ((ah->imask & ATH9K_INT_GENTIMER) == 0) {
Felix Fietkau4df30712010-11-08 20:54:47 +0100168 ath9k_hw_disable_interrupts(ah);
Pavel Roskin30691682010-03-31 18:05:31 -0400169 ah->imask |= ATH9K_INT_GENTIMER;
Felix Fietkau72d874c2011-10-08 20:06:19 +0200170 ath9k_hw_set_interrupts(ah);
Rajkumar Manoharanb037b692011-08-05 18:59:40 +0530171 ath9k_hw_enable_interrupts(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530172 }
173}
174
175static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
176{
Sujith0fca65c2010-01-08 10:36:00 +0530177 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
178
179 ath9k_hw_gen_timer_stop(ah, timer);
180
181 /* if no timer is enabled, turn off interrupt mask */
182 if (timer_table->timer_mask.val == 0) {
Felix Fietkau4df30712010-11-08 20:54:47 +0100183 ath9k_hw_disable_interrupts(ah);
Pavel Roskin30691682010-03-31 18:05:31 -0400184 ah->imask &= ~ATH9K_INT_GENTIMER;
Felix Fietkau72d874c2011-10-08 20:06:19 +0200185 ath9k_hw_set_interrupts(ah);
Rajkumar Manoharanb037b692011-08-05 18:59:40 +0530186 ath9k_hw_enable_interrupts(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530187 }
188}
189
Sujith Manoharan78b17752012-09-30 09:03:20 +0530190static void ath_mci_ftp_adjust(struct ath_softc *sc)
191{
192 struct ath_btcoex *btcoex = &sc->btcoex;
193 struct ath_mci_profile *mci = &btcoex->mci;
194 struct ath_hw *ah = sc->sc_ah;
195
Sujith Manoharan78b17752012-09-30 09:03:20 +0530196 if (btcoex->bt_wait_time > ATH_BTCOEX_RX_WAIT_TIME) {
197 if (ar9003_mci_state(ah, MCI_STATE_NEED_FTP_STOMP) &&
198 (mci->num_pan || mci->num_other_acl))
199 ah->btcoex_hw.mci.stomp_ftp =
200 (sc->rx.num_pkts < ATH_BTCOEX_STOMP_FTP_THRESH);
201 else
202 ah->btcoex_hw.mci.stomp_ftp = false;
203 btcoex->bt_wait_time = 0;
204 sc->rx.num_pkts = 0;
205 }
206}
207
Sujith0fca65c2010-01-08 10:36:00 +0530208/*
209 * This is the master bt coex timer which runs for every
210 * 45ms, bt traffic will be given priority during 55% of this
211 * period while wlan gets remaining 45%
212 */
213static void ath_btcoex_period_timer(unsigned long data)
214{
215 struct ath_softc *sc = (struct ath_softc *) data;
216 struct ath_hw *ah = sc->sc_ah;
217 struct ath_btcoex *btcoex = &sc->btcoex;
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530218 enum ath_stomp_type stomp_type;
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530219 u32 timer_period;
Rajkumar Manoharan08d4df42012-07-01 19:53:54 +0530220 unsigned long flags;
221
222 spin_lock_irqsave(&sc->sc_pm_lock, flags);
223 if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) {
Mohammed Shafi Shajakhanbe41b052012-10-08 21:30:51 +0530224 btcoex->bt_wait_time += btcoex->btcoex_period;
Rajkumar Manoharan08d4df42012-07-01 19:53:54 +0530225 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
226 goto skip_hw_wakeup;
227 }
228 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
Sujith0fca65c2010-01-08 10:36:00 +0530229
Rajkumar Manoharane82cb032012-10-12 14:07:25 +0530230 ath9k_mci_update_rssi(sc);
231
Vivek Natarajana039a992011-04-26 10:39:55 +0530232 ath9k_ps_wakeup(sc);
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530233
Rajkumar Manoharan7dc181c2011-10-24 18:19:49 +0530234 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
235 ath_detect_bt_priority(sc);
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530236
Sujith Manoharan78b17752012-09-30 09:03:20 +0530237 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
238 ath_mci_ftp_adjust(sc);
Rajkumar Manoharan6995fb82012-06-04 16:28:52 +0530239
Sujith0fca65c2010-01-08 10:36:00 +0530240 spin_lock_bh(&btcoex->btcoex_lock);
241
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530242 stomp_type = btcoex->bt_stomp_type;
243 timer_period = btcoex->btcoex_no_stomp;
Sujith0fca65c2010-01-08 10:36:00 +0530244
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530245 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) {
246 if (test_bit(BT_OP_SCAN, &btcoex->op_flags)) {
247 stomp_type = ATH_BTCOEX_STOMP_ALL;
248 timer_period = btcoex->btscan_no_stomp;
249 }
Rajkumar Manoharan28845612012-11-20 18:30:01 +0530250 } else if (btcoex->stomp_audio >= 5) {
251 stomp_type = ATH_BTCOEX_STOMP_AUDIO;
252 btcoex->stomp_audio = 0;
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530253 }
254
255 ath9k_hw_btcoex_bt_stomp(ah, stomp_type);
Rajkumar Manoharanbc6d5c22011-11-12 19:35:46 +0530256 ath9k_hw_btcoex_enable(ah);
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530257
Sujith0fca65c2010-01-08 10:36:00 +0530258 spin_unlock_bh(&btcoex->btcoex_lock);
259
Felix Fietkau168c6f82013-12-14 18:03:37 +0100260 if (btcoex->btcoex_period != btcoex->btcoex_no_stomp)
261 mod_timer(&btcoex->no_stomp_timer,
262 jiffies + msecs_to_jiffies(timer_period));
Sujith0fca65c2010-01-08 10:36:00 +0530263
Vivek Natarajana039a992011-04-26 10:39:55 +0530264 ath9k_ps_restore(sc);
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530265
Rajkumar Manoharan08d4df42012-07-01 19:53:54 +0530266skip_hw_wakeup:
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530267 mod_timer(&btcoex->period_timer,
268 jiffies + msecs_to_jiffies(btcoex->btcoex_period));
Sujith0fca65c2010-01-08 10:36:00 +0530269}
270
271/*
272 * Generic tsf based hw timer which configures weight
273 * registers to time slice between wlan and bt traffic
274 */
Felix Fietkau168c6f82013-12-14 18:03:37 +0100275static void ath_btcoex_no_stomp_timer(unsigned long arg)
Sujith0fca65c2010-01-08 10:36:00 +0530276{
277 struct ath_softc *sc = (struct ath_softc *)arg;
278 struct ath_hw *ah = sc->sc_ah;
279 struct ath_btcoex *btcoex = &sc->btcoex;
Vivek Natarajand99eeb82010-08-18 19:57:48 +0530280 struct ath_common *common = ath9k_hw_common(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530281
Joe Perchesd2182b62011-12-15 14:55:53 -0800282 ath_dbg(common, BTCOEX, "no stomp timer running\n");
Sujith0fca65c2010-01-08 10:36:00 +0530283
Vivek Natarajana039a992011-04-26 10:39:55 +0530284 ath9k_ps_wakeup(sc);
Sujith0fca65c2010-01-08 10:36:00 +0530285 spin_lock_bh(&btcoex->btcoex_lock);
286
Sujith Manoharane6930c42012-06-04 16:27:58 +0530287 if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW ||
Sujith Manoharan750f32c2012-09-30 09:03:37 +0530288 (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI) &&
289 test_bit(BT_OP_SCAN, &btcoex->op_flags)))
Vivek Natarajan978f78b2011-04-26 10:39:52 +0530290 ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
Rajkumar Manoharan28845612012-11-20 18:30:01 +0530291 else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL)
Vivek Natarajan978f78b2011-04-26 10:39:52 +0530292 ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW);
Sujith0fca65c2010-01-08 10:36:00 +0530293
Rajkumar Manoharanbc6d5c22011-11-12 19:35:46 +0530294 ath9k_hw_btcoex_enable(ah);
Sujith0fca65c2010-01-08 10:36:00 +0530295 spin_unlock_bh(&btcoex->btcoex_lock);
Vivek Natarajana039a992011-04-26 10:39:55 +0530296 ath9k_ps_restore(sc);
Sujith0fca65c2010-01-08 10:36:00 +0530297}
298
Sujith Manoharandf198b12012-02-22 12:40:27 +0530299static int ath_init_btcoex_timer(struct ath_softc *sc)
Sujith0fca65c2010-01-08 10:36:00 +0530300{
301 struct ath_btcoex *btcoex = &sc->btcoex;
302
Rajkumar Manoharandfd05872012-06-11 12:19:37 +0530303 btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD;
Felix Fietkau168c6f82013-12-14 18:03:37 +0100304 btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
Sujith0fca65c2010-01-08 10:36:00 +0530305 btcoex->btcoex_period / 100;
Felix Fietkau168c6f82013-12-14 18:03:37 +0100306 btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) *
Vasanthakumar Thiagarajan58da1312010-01-21 11:17:27 +0530307 btcoex->btcoex_period / 100;
Sujith0fca65c2010-01-08 10:36:00 +0530308
309 setup_timer(&btcoex->period_timer, ath_btcoex_period_timer,
310 (unsigned long) sc);
Felix Fietkau168c6f82013-12-14 18:03:37 +0100311 setup_timer(&btcoex->no_stomp_timer, ath_btcoex_no_stomp_timer,
312 (unsigned long) sc);
Sujith0fca65c2010-01-08 10:36:00 +0530313
314 spin_lock_init(&btcoex->btcoex_lock);
315
Sujith0fca65c2010-01-08 10:36:00 +0530316 return 0;
317}
318
319/*
320 * (Re)start btcoex timers
321 */
322void ath9k_btcoex_timer_resume(struct ath_softc *sc)
323{
324 struct ath_btcoex *btcoex = &sc->btcoex;
325 struct ath_hw *ah = sc->sc_ah;
326
Joe Perchesd2182b62011-12-15 14:55:53 -0800327 ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n");
Sujith0fca65c2010-01-08 10:36:00 +0530328
329 /* make sure duty cycle timer is also stopped when resuming */
Felix Fietkau168c6f82013-12-14 18:03:37 +0100330 del_timer_sync(&btcoex->no_stomp_timer);
Sujith0fca65c2010-01-08 10:36:00 +0530331
332 btcoex->bt_priority_cnt = 0;
333 btcoex->bt_priority_time = jiffies;
Mohammed Shafi Shajakhanc11216d2012-06-29 10:34:39 +0530334 clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
335 clear_bit(BT_OP_SCAN, &btcoex->op_flags);
Sujith0fca65c2010-01-08 10:36:00 +0530336
337 mod_timer(&btcoex->period_timer, jiffies);
338}
339
340
341/*
342 * Pause btcoex timer and bt duty cycle timer
343 */
344void ath9k_btcoex_timer_pause(struct ath_softc *sc)
345{
346 struct ath_btcoex *btcoex = &sc->btcoex;
Sujith0fca65c2010-01-08 10:36:00 +0530347
Sujith0fca65c2010-01-08 10:36:00 +0530348 del_timer_sync(&btcoex->period_timer);
Felix Fietkau168c6f82013-12-14 18:03:37 +0100349 del_timer_sync(&btcoex->no_stomp_timer);
Sujith0fca65c2010-01-08 10:36:00 +0530350}
Sujith Manoharan59081202012-02-22 12:40:21 +0530351
Rajkumar Manoharan08d4df42012-07-01 19:53:54 +0530352void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
353{
354 struct ath_btcoex *btcoex = &sc->btcoex;
355
Felix Fietkau168c6f82013-12-14 18:03:37 +0100356 del_timer_sync(&btcoex->no_stomp_timer);
Rajkumar Manoharan08d4df42012-07-01 19:53:54 +0530357}
358
Sujith Manoharanc0ac53f2012-02-22 12:40:38 +0530359u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen)
360{
Sujith Manoharane6930c42012-06-04 16:27:58 +0530361 struct ath_btcoex *btcoex = &sc->btcoex;
Sujith Manoharanc0ac53f2012-02-22 12:40:38 +0530362 struct ath_mci_profile *mci = &sc->btcoex.mci;
363 u16 aggr_limit = 0;
364
365 if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit)
366 aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4;
Sujith Manoharane6930c42012-06-04 16:27:58 +0530367 else if (test_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags))
Sujith Manoharanc0ac53f2012-02-22 12:40:38 +0530368 aggr_limit = min((max_4ms_framelen * 3) / 8,
369 (u32)ATH_AMPDU_LIMIT_MAX);
370
371 return aggr_limit;
372}
373
Sujith Manoharan56ca0dba2012-02-22 12:40:32 +0530374void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status)
375{
376 struct ath_hw *ah = sc->sc_ah;
377
378 if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
379 if (status & ATH9K_INT_GENTIMER)
380 ath_gen_timer_isr(sc->sc_ah);
381
Sujith Manoharan9a158582012-02-22 12:41:59 +0530382 if (status & ATH9K_INT_MCI)
Sujith Manoharan56ca0dba2012-02-22 12:40:32 +0530383 ath_mci_intr(sc);
384}
385
Sujith Manoharandf198b12012-02-22 12:40:27 +0530386void ath9k_start_btcoex(struct ath_softc *sc)
387{
388 struct ath_hw *ah = sc->sc_ah;
389
390 if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
391 !ah->btcoex_hw.enabled) {
392 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
393 ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
Sujith Manoharan5160b462012-09-28 11:13:51 +0530394 AR_STOMP_LOW_WLAN_WGHT, 0);
395 else
396 ath9k_hw_btcoex_set_weight(ah, 0, 0,
397 ATH_BTCOEX_STOMP_NONE);
Sujith Manoharandf198b12012-02-22 12:40:27 +0530398 ath9k_hw_btcoex_enable(ah);
399
400 if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
401 ath9k_btcoex_timer_resume(sc);
402 }
403}
404
405void ath9k_stop_btcoex(struct ath_softc *sc)
406{
407 struct ath_hw *ah = sc->sc_ah;
408
409 if (ah->btcoex_hw.enabled &&
410 ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
Sujith Manoharandf198b12012-02-22 12:40:27 +0530411 if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
412 ath9k_btcoex_timer_pause(sc);
Mohammed Shafi Shajakhanc32cdbd2012-07-06 20:09:32 +0530413 ath9k_hw_btcoex_disable(ah);
Bala Shanmugam6a73f502012-09-26 17:04:26 +0530414 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
Sujith Manoharanbff2ec22012-03-12 07:51:07 +0530415 ath_mci_flush_profile(&sc->btcoex.mci);
Sujith Manoharandf198b12012-02-22 12:40:27 +0530416 }
417}
418
Sujith Manoharan59081202012-02-22 12:40:21 +0530419void ath9k_deinit_btcoex(struct ath_softc *sc)
420{
Mohammed Shafi Shajakhandd89f052012-07-06 20:09:16 +0530421 struct ath_hw *ah = sc->sc_ah;
422
Mohammed Shafi Shajakhandd89f052012-07-06 20:09:16 +0530423 if (ath9k_hw_mci_is_enabled(ah))
Sujith Manoharan59081202012-02-22 12:40:21 +0530424 ath_mci_cleanup(sc);
425}
426
427int ath9k_init_btcoex(struct ath_softc *sc)
428{
429 struct ath_txq *txq;
430 struct ath_hw *ah = sc->sc_ah;
431 int r;
432
Sujith Manoharand68475d2012-02-22 12:40:49 +0530433 ath9k_hw_btcoex_init_scheme(ah);
434
Sujith Manoharan59081202012-02-22 12:40:21 +0530435 switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) {
436 case ATH_BTCOEX_CFG_NONE:
437 break;
438 case ATH_BTCOEX_CFG_2WIRE:
439 ath9k_hw_btcoex_init_2wire(sc->sc_ah);
440 break;
441 case ATH_BTCOEX_CFG_3WIRE:
442 ath9k_hw_btcoex_init_3wire(sc->sc_ah);
443 r = ath_init_btcoex_timer(sc);
444 if (r)
445 return -1;
Sujith Manoharanbea843c2012-11-21 18:13:10 +0530446 txq = sc->tx.txq_map[IEEE80211_AC_BE];
Sujith Manoharan59081202012-02-22 12:40:21 +0530447 ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum);
448 sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
Mohammed Shafi Shajakhan81294482012-06-27 20:00:26 +0530449 if (ath9k_hw_mci_is_enabled(ah)) {
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530450 sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE;
451 INIT_LIST_HEAD(&sc->btcoex.mci.info);
Sujith Manoharan59081202012-02-22 12:40:21 +0530452
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530453 r = ath_mci_setup(sc);
454 if (r)
455 return r;
Sujith Manoharan59081202012-02-22 12:40:21 +0530456
Rajkumar Manoharan0466e252012-04-19 19:13:52 +0530457 ath9k_hw_btcoex_init_mci(ah);
458 }
Sujith Manoharan59081202012-02-22 12:40:21 +0530459
460 break;
461 default:
462 WARN_ON(1);
463 break;
464 }
465
466 return 0;
467}
Sujith Manoharan4daa7762012-02-22 12:40:44 +0530468
Sujith Manoharanac46ba42012-11-19 14:24:46 +0530469static int ath9k_dump_mci_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530470{
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530471 struct ath_btcoex *btcoex = &sc->btcoex;
472 struct ath_mci_profile *mci = &btcoex->mci;
473 struct ath_hw *ah = sc->sc_ah;
474 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
Sujith Manoharanac46ba42012-11-19 14:24:46 +0530475 u32 len = 0;
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530476 int i;
477
478 ATH_DUMP_BTCOEX("Total BT profiles", NUM_PROF(mci));
Sujith Manoharanac46ba42012-11-19 14:24:46 +0530479 ATH_DUMP_BTCOEX("MGMT", mci->num_mgmt);
480 ATH_DUMP_BTCOEX("SCO", mci->num_sco);
481 ATH_DUMP_BTCOEX("A2DP", mci->num_a2dp);
482 ATH_DUMP_BTCOEX("HID", mci->num_hid);
483 ATH_DUMP_BTCOEX("PAN", mci->num_pan);
484 ATH_DUMP_BTCOEX("ACL", mci->num_other_acl);
485 ATH_DUMP_BTCOEX("BDR", mci->num_bdr);
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530486 ATH_DUMP_BTCOEX("Aggr. Limit", mci->aggr_limit);
487 ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
488 ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
489 ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
490 ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);
491 ATH_DUMP_BTCOEX("Concurrent Tx", btcoex_hw->mci.concur_tx);
Sujith Manoharanac46ba42012-11-19 14:24:46 +0530492 ATH_DUMP_BTCOEX("Concurrent RSSI cnt", btcoex->rssi_count);
493
Zefir Kurtisi5e88ba62013-09-05 14:11:57 +0200494 len += scnprintf(buf + len, size - len, "BT Weights: ");
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530495 for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
Zefir Kurtisi5e88ba62013-09-05 14:11:57 +0200496 len += scnprintf(buf + len, size - len, "%08x ",
497 btcoex_hw->bt_weight[i]);
498 len += scnprintf(buf + len, size - len, "\n");
499 len += scnprintf(buf + len, size - len, "WLAN Weights: ");
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530500 for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
Zefir Kurtisi5e88ba62013-09-05 14:11:57 +0200501 len += scnprintf(buf + len, size - len, "%08x ",
502 btcoex_hw->wlan_weight[i]);
503 len += scnprintf(buf + len, size - len, "\n");
504 len += scnprintf(buf + len, size - len, "Tx Priorities: ");
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530505 for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++)
Zefir Kurtisi5e88ba62013-09-05 14:11:57 +0200506 len += scnprintf(buf + len, size - len, "%08x ",
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530507 btcoex_hw->tx_prio[i]);
Sujith Manoharanac46ba42012-11-19 14:24:46 +0530508
Zefir Kurtisi5e88ba62013-09-05 14:11:57 +0200509 len += scnprintf(buf + len, size - len, "\n");
Rajkumar Manoharan4df50ca2012-10-25 17:16:54 +0530510
511 return len;
512}
Sujith Manoharanac46ba42012-11-19 14:24:46 +0530513
514static int ath9k_dump_legacy_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
515{
516
517 struct ath_btcoex *btcoex = &sc->btcoex;
518 u32 len = 0;
519
520 ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
521 ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
522 ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
523 ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);
524
525 return len;
526}
527
528int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
529{
530 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
531 return ath9k_dump_mci_btcoex(sc, buf, size);
532 else
533 return ath9k_dump_legacy_btcoex(sc, buf, size);
534}
535
Sujith Manoharan4daa7762012-02-22 12:40:44 +0530536#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */