summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/gpio.c
blob: c34f21241da947e5297bc7ad18e6de9cc3430825 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
/*
 * Copyright (c) 2008-2011 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "ath9k.h"

/********************************/
/*	 LED functions		*/
/********************************/

#ifdef CONFIG_MAC80211_LEDS
static void ath_led_brightness(struct led_classdev *led_cdev,
			       enum led_brightness brightness)
{
	struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev);
	ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, (brightness == LED_OFF));
}

void ath_deinit_leds(struct ath_softc *sc)
{
	if (!sc->led_registered)
		return;

	ath_led_brightness(&sc->led_cdev, LED_OFF);
	led_classdev_unregister(&sc->led_cdev);
}

void ath_init_leds(struct ath_softc *sc)
{
	int ret;

	if (AR_SREV_9100(sc->sc_ah))
		return;

	if (!led_blink)
		sc->led_cdev.default_trigger =
			ieee80211_get_radio_led_name(sc->hw);

	snprintf(sc->led_name, sizeof(sc->led_name),
		"ath9k-%s", wiphy_name(sc->hw->wiphy));
	sc->led_cdev.name = sc->led_name;
	sc->led_cdev.brightness_set = ath_led_brightness;

	ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev);
	if (ret < 0)
		return;

	sc->led_registered = true;
}

void ath_fill_led_pin(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;

	if (AR_SREV_9100(ah) || (ah->led_pin >= 0))
		return;

	if (AR_SREV_9287(ah))
		ah->led_pin = ATH_LED_PIN_9287;
	else if (AR_SREV_9485(sc->sc_ah))
		ah->led_pin = ATH_LED_PIN_9485;
	else if (AR_SREV_9300(sc->sc_ah))
		ah->led_pin = ATH_LED_PIN_9300;
	else if (AR_SREV_9462(sc->sc_ah) || AR_SREV_9565(sc->sc_ah))
		ah->led_pin = ATH_LED_PIN_9462;
	else
		ah->led_pin = ATH_LED_PIN_DEF;

	/* Configure gpio 1 for output */
	ath9k_hw_cfg_output(ah, ah->led_pin, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);

	/* LED off, active low */
	ath9k_hw_set_gpio(ah, ah->led_pin, 1);
}
#endif

/*******************/
/*	Rfkill	   */
/*******************/

static bool ath_is_rfkill_set(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;
	bool is_blocked;

	ath9k_ps_wakeup(sc);
	is_blocked = ath9k_hw_gpio_get(ah, ah->rfkill_gpio) ==
				  ah->rfkill_polarity;
	ath9k_ps_restore(sc);

	return is_blocked;
}

void ath9k_rfkill_poll_state(struct ieee80211_hw *hw)
{
	struct ath_softc *sc = hw->priv;
	bool blocked = !!ath_is_rfkill_set(sc);

	wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
}

void ath_start_rfkill_poll(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;

	if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
		wiphy_rfkill_start_polling(sc->hw->wiphy);
}

#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT

/******************/
/*     BTCOEX     */
/******************/

/*
 * Detects if there is any priority bt traffic
 */
static void ath_detect_bt_priority(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_hw *ah = sc->sc_ah;

	if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio))
		btcoex->bt_priority_cnt++;

	if (time_after(jiffies, btcoex->bt_priority_time +
			msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) {
		clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
		clear_bit(BT_OP_SCAN, &btcoex->op_flags);
		/* Detect if colocated bt started scanning */
		if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) {
			ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
				"BT scan detected\n");
			set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
			set_bit(BT_OP_SCAN, &btcoex->op_flags);
		} else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
			ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
				"BT priority traffic detected\n");
			set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
		}

		btcoex->bt_priority_cnt = 0;
		btcoex->bt_priority_time = jiffies;
	}
}

static void ath9k_gen_timer_start(struct ath_hw *ah,
				  struct ath_gen_timer *timer,
				  u32 trig_timeout,
				  u32 timer_period)
{
	ath9k_hw_gen_timer_start(ah, timer, trig_timeout, timer_period);

	if ((ah->imask & ATH9K_INT_GENTIMER) == 0) {
		ath9k_hw_disable_interrupts(ah);
		ah->imask |= ATH9K_INT_GENTIMER;
		ath9k_hw_set_interrupts(ah);
		ath9k_hw_enable_interrupts(ah);
	}
}

static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
{
	struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;

	ath9k_hw_gen_timer_stop(ah, timer);

	/* if no timer is enabled, turn off interrupt mask */
	if (timer_table->timer_mask.val == 0) {
		ath9k_hw_disable_interrupts(ah);
		ah->imask &= ~ATH9K_INT_GENTIMER;
		ath9k_hw_set_interrupts(ah);
		ath9k_hw_enable_interrupts(ah);
	}
}

static void ath_mci_ftp_adjust(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_mci_profile *mci = &btcoex->mci;
	struct ath_hw *ah = sc->sc_ah;

	if (btcoex->bt_wait_time > ATH_BTCOEX_RX_WAIT_TIME) {
		if (ar9003_mci_state(ah, MCI_STATE_NEED_FTP_STOMP) &&
		    (mci->num_pan || mci->num_other_acl))
			ah->btcoex_hw.mci.stomp_ftp =
				(sc->rx.num_pkts < ATH_BTCOEX_STOMP_FTP_THRESH);
		else
			ah->btcoex_hw.mci.stomp_ftp = false;
		btcoex->bt_wait_time = 0;
		sc->rx.num_pkts = 0;
	}
}

/*
 * This is the master bt coex timer which runs for every
 * 45ms, bt traffic will be given priority during 55% of this
 * period while wlan gets remaining 45%
 */
static void ath_btcoex_period_timer(unsigned long data)
{
	struct ath_softc *sc = (struct ath_softc *) data;
	struct ath_hw *ah = sc->sc_ah;
	struct ath_btcoex *btcoex = &sc->btcoex;
	enum ath_stomp_type stomp_type;
	u32 timer_period;
	unsigned long flags;

	spin_lock_irqsave(&sc->sc_pm_lock, flags);
	if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) {
		btcoex->bt_wait_time += btcoex->btcoex_period;
		spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
		goto skip_hw_wakeup;
	}
	spin_unlock_irqrestore(&sc->sc_pm_lock, flags);

	ath9k_mci_update_rssi(sc);

	ath9k_ps_wakeup(sc);

	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
		ath_detect_bt_priority(sc);

	if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
		ath_mci_ftp_adjust(sc);

	spin_lock_bh(&btcoex->btcoex_lock);

	stomp_type = btcoex->bt_stomp_type;
	timer_period = btcoex->btcoex_no_stomp;

	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) {
		if (test_bit(BT_OP_SCAN, &btcoex->op_flags)) {
			stomp_type = ATH_BTCOEX_STOMP_ALL;
			timer_period = btcoex->btscan_no_stomp;
		}
	} else if (btcoex->stomp_audio >= 5) {
		stomp_type = ATH_BTCOEX_STOMP_AUDIO;
		btcoex->stomp_audio = 0;
	}

	ath9k_hw_btcoex_bt_stomp(ah, stomp_type);
	ath9k_hw_btcoex_enable(ah);

	spin_unlock_bh(&btcoex->btcoex_lock);

	/*
	 * btcoex_period is in msec while (btocex/btscan_)no_stomp are in usec,
	 * ensure that we properly convert btcoex_period to usec
	 * for any comparision with (btcoex/btscan_)no_stomp.
	 */
	if (btcoex->btcoex_period * 1000 != btcoex->btcoex_no_stomp) {
		if (btcoex->hw_timer_enabled)
			ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer);

		ath9k_gen_timer_start(ah, btcoex->no_stomp_timer, timer_period,
				      timer_period * 10);
		btcoex->hw_timer_enabled = true;
	}

	ath9k_ps_restore(sc);

skip_hw_wakeup:
	mod_timer(&btcoex->period_timer,
		  jiffies + msecs_to_jiffies(btcoex->btcoex_period));
}

/*
 * Generic tsf based hw timer which configures weight
 * registers to time slice between wlan and bt traffic
 */
static void ath_btcoex_no_stomp_timer(void *arg)
{
	struct ath_softc *sc = (struct ath_softc *)arg;
	struct ath_hw *ah = sc->sc_ah;
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_common *common = ath9k_hw_common(ah);

	ath_dbg(common, BTCOEX, "no stomp timer running\n");

	ath9k_ps_wakeup(sc);
	spin_lock_bh(&btcoex->btcoex_lock);

	if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW ||
	    (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI) &&
	     test_bit(BT_OP_SCAN, &btcoex->op_flags)))
		ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
	else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL)
		ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW);

	ath9k_hw_btcoex_enable(ah);
	spin_unlock_bh(&btcoex->btcoex_lock);
	ath9k_ps_restore(sc);
}

static int ath_init_btcoex_timer(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;

	btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD;
	btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * 1000 *
		btcoex->btcoex_period / 100;
	btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) * 1000 *
				   btcoex->btcoex_period / 100;

	setup_timer(&btcoex->period_timer, ath_btcoex_period_timer,
			(unsigned long) sc);

	spin_lock_init(&btcoex->btcoex_lock);

	btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah,
			ath_btcoex_no_stomp_timer,
			ath_btcoex_no_stomp_timer,
			(void *) sc, AR_FIRST_NDP_TIMER);

	if (!btcoex->no_stomp_timer)
		return -ENOMEM;

	return 0;
}

/*
 * (Re)start btcoex timers
 */
void ath9k_btcoex_timer_resume(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_hw *ah = sc->sc_ah;

	ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n");

	/* make sure duty cycle timer is also stopped when resuming */
	if (btcoex->hw_timer_enabled) {
		ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
		btcoex->hw_timer_enabled = false;
	}

	btcoex->bt_priority_cnt = 0;
	btcoex->bt_priority_time = jiffies;
	clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
	clear_bit(BT_OP_SCAN, &btcoex->op_flags);

	mod_timer(&btcoex->period_timer, jiffies);
}


/*
 * Pause btcoex timer and bt duty cycle timer
 */
void ath9k_btcoex_timer_pause(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_hw *ah = sc->sc_ah;

	del_timer_sync(&btcoex->period_timer);

	if (btcoex->hw_timer_enabled) {
		ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer);
		btcoex->hw_timer_enabled = false;
	}
}

void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;

	if (btcoex->hw_timer_enabled) {
		ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
		btcoex->hw_timer_enabled = false;
	}
}

u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_mci_profile *mci = &sc->btcoex.mci;
	u16 aggr_limit = 0;

	if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit)
		aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4;
	else if (test_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags))
		aggr_limit = min((max_4ms_framelen * 3) / 8,
				 (u32)ATH_AMPDU_LIMIT_MAX);

	return aggr_limit;
}

void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status)
{
	struct ath_hw *ah = sc->sc_ah;

	if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
		if (status & ATH9K_INT_GENTIMER)
			ath_gen_timer_isr(sc->sc_ah);

	if (status & ATH9K_INT_MCI)
		ath_mci_intr(sc);
}

void ath9k_start_btcoex(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;

	if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
	    !ah->btcoex_hw.enabled) {
		if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
			ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
						   AR_STOMP_LOW_WLAN_WGHT, 0);
		else
			ath9k_hw_btcoex_set_weight(ah, 0, 0,
						   ATH_BTCOEX_STOMP_NONE);
		ath9k_hw_btcoex_enable(ah);

		if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
			ath9k_btcoex_timer_resume(sc);
	}
}

void ath9k_stop_btcoex(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;

	if (ah->btcoex_hw.enabled &&
	    ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
		if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
			ath9k_btcoex_timer_pause(sc);
		ath9k_hw_btcoex_disable(ah);
		if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
			ath_mci_flush_profile(&sc->btcoex.mci);
	}
}

void ath9k_deinit_btcoex(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;

        if ((sc->btcoex.no_stomp_timer) &&
	    ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_3WIRE)
		ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);

	if (ath9k_hw_mci_is_enabled(ah))
		ath_mci_cleanup(sc);
}

int ath9k_init_btcoex(struct ath_softc *sc)
{
	struct ath_txq *txq;
	struct ath_hw *ah = sc->sc_ah;
	int r;

	ath9k_hw_btcoex_init_scheme(ah);

	switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) {
	case ATH_BTCOEX_CFG_NONE:
		break;
	case ATH_BTCOEX_CFG_2WIRE:
		ath9k_hw_btcoex_init_2wire(sc->sc_ah);
		break;
	case ATH_BTCOEX_CFG_3WIRE:
		ath9k_hw_btcoex_init_3wire(sc->sc_ah);
		r = ath_init_btcoex_timer(sc);
		if (r)
			return -1;
		txq = sc->tx.txq_map[IEEE80211_AC_BE];
		ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum);
		sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
		if (ath9k_hw_mci_is_enabled(ah)) {
			sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE;
			INIT_LIST_HEAD(&sc->btcoex.mci.info);

			r = ath_mci_setup(sc);
			if (r)
				return r;

			ath9k_hw_btcoex_init_mci(ah);
		}

		break;
	default:
		WARN_ON(1);
		break;
	}

	return 0;
}

static int ath9k_dump_mci_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_mci_profile *mci = &btcoex->mci;
	struct ath_hw *ah = sc->sc_ah;
	struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
	u32 len = 0;
	int i;

	ATH_DUMP_BTCOEX("Total BT profiles", NUM_PROF(mci));
	ATH_DUMP_BTCOEX("MGMT", mci->num_mgmt);
	ATH_DUMP_BTCOEX("SCO", mci->num_sco);
	ATH_DUMP_BTCOEX("A2DP", mci->num_a2dp);
	ATH_DUMP_BTCOEX("HID", mci->num_hid);
	ATH_DUMP_BTCOEX("PAN", mci->num_pan);
	ATH_DUMP_BTCOEX("ACL", mci->num_other_acl);
	ATH_DUMP_BTCOEX("BDR", mci->num_bdr);
	ATH_DUMP_BTCOEX("Aggr. Limit", mci->aggr_limit);
	ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
	ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
	ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
	ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);
	ATH_DUMP_BTCOEX("Concurrent Tx", btcoex_hw->mci.concur_tx);
	ATH_DUMP_BTCOEX("Concurrent RSSI cnt", btcoex->rssi_count);

	len += scnprintf(buf + len, size - len, "BT Weights: ");
	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
		len += scnprintf(buf + len, size - len, "%08x ",
				 btcoex_hw->bt_weight[i]);
	len += scnprintf(buf + len, size - len, "\n");
	len += scnprintf(buf + len, size - len, "WLAN Weights: ");
	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
		len += scnprintf(buf + len, size - len, "%08x ",
				 btcoex_hw->wlan_weight[i]);
	len += scnprintf(buf + len, size - len, "\n");
	len += scnprintf(buf + len, size - len, "Tx Priorities: ");
	for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++)
		len += scnprintf(buf + len, size - len, "%08x ",
				btcoex_hw->tx_prio[i]);

	len += scnprintf(buf + len, size - len, "\n");

	return len;
}

static int ath9k_dump_legacy_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
{

	struct ath_btcoex *btcoex = &sc->btcoex;
	u32 len = 0;

	ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
	ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
	ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
	ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);

	return len;
}

int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
{
	if (ath9k_hw_mci_is_enabled(sc->sc_ah))
		return ath9k_dump_mci_btcoex(sc, buf, size);
	else
		return ath9k_dump_legacy_btcoex(sc, buf, size);
}

#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
OpenPOWER on IntegriCloud