summaryrefslogtreecommitdiff
path: root/sound/soc/soc-dai.c
blob: 6f8773a8fc053dffab7e2f7066f987222b1d91f8 (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
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
// SPDX-License-Identifier: GPL-2.0
//
// soc-dai.c
//
// Copyright (C) 2019 Renesas Electronics Corp.
// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
//

#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <sound/soc-link.h>

#define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret)
static inline int _soc_dai_ret(struct snd_soc_dai *dai,
			       const char *func, int ret)
{
	/* Positive, Zero values are not errors */
	if (ret >= 0)
		return ret;

	/* Negative values might be errors */
	switch (ret) {
	case -EPROBE_DEFER:
	case -ENOTSUPP:
		break;
	default:
		dev_err(dai->dev,
			"ASoC: error at %s on %s: %d\n",
			func, dai->name, ret);
	}

	return ret;
}

/*
 * We might want to check substream by using list.
 * In such case, we can update these macros.
 */
#define soc_dai_mark_push(dai, substream, tgt)	((dai)->mark_##tgt = substream)
#define soc_dai_mark_pop(dai, substream, tgt)	((dai)->mark_##tgt = NULL)
#define soc_dai_mark_match(dai, substream, tgt)	((dai)->mark_##tgt == substream)

/**
 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
 * @dai: DAI
 * @clk_id: DAI specific clock ID
 * @freq: new clock frequency in Hz
 * @dir: new clock direction - input/output.
 *
 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
 */
int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
			   unsigned int freq, int dir)
{
	int ret;

	if (dai->driver->ops &&
	    dai->driver->ops->set_sysclk)
		ret = dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
	else
		ret = snd_soc_component_set_sysclk(dai->component, clk_id, 0,
						   freq, dir);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);

/**
 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
 * @dai: DAI
 * @div_id: DAI specific clock divider ID
 * @div: new clock divisor.
 *
 * Configures the clock dividers. This is used to derive the best DAI bit and
 * frame clocks from the system or master clock. It's best to set the DAI bit
 * and frame clocks as low as possible to save system power.
 */
int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
			   int div_id, int div)
{
	int ret = -EINVAL;

	if (dai->driver->ops &&
	    dai->driver->ops->set_clkdiv)
		ret = dai->driver->ops->set_clkdiv(dai, div_id, div);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);

/**
 * snd_soc_dai_set_pll - configure DAI PLL.
 * @dai: DAI
 * @pll_id: DAI specific PLL ID
 * @source: DAI specific source for the PLL
 * @freq_in: PLL input clock frequency in Hz
 * @freq_out: requested PLL output clock frequency in Hz
 *
 * Configures and enables PLL to generate output clock based on input clock.
 */
int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
			unsigned int freq_in, unsigned int freq_out)
{
	int ret;

	if (dai->driver->ops &&
	    dai->driver->ops->set_pll)
		ret = dai->driver->ops->set_pll(dai, pll_id, source,
						freq_in, freq_out);
	else
		ret = snd_soc_component_set_pll(dai->component, pll_id, source,
						freq_in, freq_out);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);

/**
 * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
 * @dai: DAI
 * @ratio: Ratio of BCLK to Sample rate.
 *
 * Configures the DAI for a preset BCLK to sample rate ratio.
 */
int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
{
	int ret = -ENOTSUPP;

	if (dai->driver->ops &&
	    dai->driver->ops->set_bclk_ratio)
		ret = dai->driver->ops->set_bclk_ratio(dai, ratio);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);

int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *dai;
	int i, max = 0;

	/*
	 * return max num if *ALL* DAIs have .auto_selectable_formats
	 */
	for_each_rtd_dais(rtd, i, dai) {
		if (dai->driver->ops &&
		    dai->driver->ops->num_auto_selectable_formats)
			max = max(max, dai->driver->ops->num_auto_selectable_formats);
		else
			return 0;
	}

	return max;
}

/**
 * snd_soc_dai_get_fmt - get supported audio format.
 * @dai: DAI
 * @priority: priority level of supported audio format.
 *
 * This should return only formats implemented with high
 * quality by the DAI so that the core can configure a
 * format which will work well with other devices.
 * For example devices which don't support both edges of the
 * LRCLK signal in I2S style formats should only list DSP
 * modes.  This will mean that sometimes fewer formats
 * are reported here than are supported by set_fmt().
 */
u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority)
{
	const struct snd_soc_dai_ops *ops = dai->driver->ops;
	u64 fmt = 0;
	int i, max = 0, until = priority;

	/*
	 * Collect auto_selectable_formats until priority
	 *
	 * ex)
	 *	auto_selectable_formats[] = { A, B, C };
	 *	(A, B, C = SND_SOC_POSSIBLE_DAIFMT_xxx)
	 *
	 * priority = 1 :	A
	 * priority = 2 :	A | B
	 * priority = 3 :	A | B | C
	 * priority = 4 :	A | B | C
	 * ...
	 */
	if (ops)
		max = ops->num_auto_selectable_formats;

	if (max < until)
		until = max;

	for (i = 0; i < until; i++)
		fmt |= ops->auto_selectable_formats[i];

	return fmt;
}

/**
 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
 * @dai: DAI
 * @fmt: SND_SOC_DAIFMT_* format value.
 *
 * Configures the DAI hardware format and clocking.
 */
int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	int ret = -ENOTSUPP;

	if (dai->driver->ops && dai->driver->ops->set_fmt)
		ret = dai->driver->ops->set_fmt(dai, fmt);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);

/**
 * snd_soc_xlate_tdm_slot_mask - generate tx/rx slot mask.
 * @slots: Number of slots in use.
 * @tx_mask: bitmask representing active TX slots.
 * @rx_mask: bitmask representing active RX slots.
 *
 * Generates the TDM tx and rx slot default masks for DAI.
 */
static int snd_soc_xlate_tdm_slot_mask(unsigned int slots,
				       unsigned int *tx_mask,
				       unsigned int *rx_mask)
{
	if (*tx_mask || *rx_mask)
		return 0;

	if (!slots)
		return -EINVAL;

	*tx_mask = (1 << slots) - 1;
	*rx_mask = (1 << slots) - 1;

	return 0;
}

/**
 * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation
 * @dai: The DAI to configure
 * @tx_mask: bitmask representing active TX slots.
 * @rx_mask: bitmask representing active RX slots.
 * @slots: Number of slots in use.
 * @slot_width: Width in bits for each slot.
 *
 * This function configures the specified DAI for TDM operation. @slot contains
 * the total number of slots of the TDM stream and @slot_with the width of each
 * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the
 * active slots of the TDM stream for the specified DAI, i.e. which slots the
 * DAI should write to or read from. If a bit is set the corresponding slot is
 * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to
 * the first slot, bit 1 to the second slot and so on. The first active slot
 * maps to the first channel of the DAI, the second active slot to the second
 * channel and so on.
 *
 * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask,
 * @rx_mask and @slot_width will be ignored.
 *
 * Returns 0 on success, a negative error code otherwise.
 */
int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
			     unsigned int tx_mask, unsigned int rx_mask,
			     int slots, int slot_width)
{
	int ret = -ENOTSUPP;
	int stream;
	unsigned int *tdm_mask[] = {
		&tx_mask,
		&rx_mask,
	};

	if (dai->driver->ops &&
	    dai->driver->ops->xlate_tdm_slot_mask)
		dai->driver->ops->xlate_tdm_slot_mask(slots,
						      &tx_mask, &rx_mask);
	else
		snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);

	for_each_pcm_streams(stream)
		snd_soc_dai_tdm_mask_set(dai, stream, *tdm_mask[stream]);

	if (dai->driver->ops &&
	    dai->driver->ops->set_tdm_slot)
		ret = dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
						      slots, slot_width);
	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);

/**
 * snd_soc_dai_set_channel_map - configure DAI audio channel map
 * @dai: DAI
 * @tx_num: how many TX channels
 * @tx_slot: pointer to an array which imply the TX slot number channel
 *           0~num-1 uses
 * @rx_num: how many RX channels
 * @rx_slot: pointer to an array which imply the RX slot number channel
 *           0~num-1 uses
 *
 * configure the relationship between channel number and TDM slot number.
 */
int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
				unsigned int tx_num, unsigned int *tx_slot,
				unsigned int rx_num, unsigned int *rx_slot)
{
	int ret = -ENOTSUPP;

	if (dai->driver->ops &&
	    dai->driver->ops->set_channel_map)
		ret = dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
							rx_num, rx_slot);
	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);

/**
 * snd_soc_dai_get_channel_map - Get DAI audio channel map
 * @dai: DAI
 * @tx_num: how many TX channels
 * @tx_slot: pointer to an array which imply the TX slot number channel
 *           0~num-1 uses
 * @rx_num: how many RX channels
 * @rx_slot: pointer to an array which imply the RX slot number channel
 *           0~num-1 uses
 */
int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
				unsigned int *tx_num, unsigned int *tx_slot,
				unsigned int *rx_num, unsigned int *rx_slot)
{
	int ret = -ENOTSUPP;

	if (dai->driver->ops &&
	    dai->driver->ops->get_channel_map)
		ret = dai->driver->ops->get_channel_map(dai, tx_num, tx_slot,
							rx_num, rx_slot);
	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map);

/**
 * snd_soc_dai_set_tristate - configure DAI system or master clock.
 * @dai: DAI
 * @tristate: tristate enable
 *
 * Tristates the DAI so that others can use it.
 */
int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
{
	int ret = -EINVAL;

	if (dai->driver->ops &&
	    dai->driver->ops->set_tristate)
		ret = dai->driver->ops->set_tristate(dai, tristate);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);

/**
 * snd_soc_dai_digital_mute - configure DAI system or master clock.
 * @dai: DAI
 * @mute: mute enable
 * @direction: stream to mute
 *
 * Mutes the DAI DAC.
 */
int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
			     int direction)
{
	int ret = -ENOTSUPP;

	/*
	 * ignore if direction was CAPTURE
	 * and it had .no_capture_mute flag
	 */
	if (dai->driver->ops &&
	    dai->driver->ops->mute_stream &&
	    (direction == SNDRV_PCM_STREAM_PLAYBACK ||
	     !dai->driver->ops->no_capture_mute))
		ret = dai->driver->ops->mute_stream(dai, mute, direction);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);

int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
			  struct snd_pcm_substream *substream,
			  struct snd_pcm_hw_params *params)
{
	int ret = 0;

	if (dai->driver->ops &&
	    dai->driver->ops->hw_params)
		ret = dai->driver->ops->hw_params(substream, params, dai);

	/* mark substream if succeeded */
	if (ret == 0)
		soc_dai_mark_push(dai, substream, hw_params);

	return soc_dai_ret(dai, ret);
}

void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
			 struct snd_pcm_substream *substream,
			 int rollback)
{
	if (rollback && !soc_dai_mark_match(dai, substream, hw_params))
		return;

	if (dai->driver->ops &&
	    dai->driver->ops->hw_free)
		dai->driver->ops->hw_free(substream, dai);

	/* remove marked substream */
	soc_dai_mark_pop(dai, substream, hw_params);
}

int snd_soc_dai_startup(struct snd_soc_dai *dai,
			struct snd_pcm_substream *substream)
{
	int ret = 0;

	if (!snd_soc_dai_stream_valid(dai, substream->stream))
		return 0;

	if (dai->driver->ops &&
	    dai->driver->ops->startup)
		ret = dai->driver->ops->startup(substream, dai);

	/* mark substream if succeeded */
	if (ret == 0)
		soc_dai_mark_push(dai, substream, startup);

	return soc_dai_ret(dai, ret);
}

void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
			  struct snd_pcm_substream *substream,
			  int rollback)
{
	if (!snd_soc_dai_stream_valid(dai, substream->stream))
		return;

	if (rollback && !soc_dai_mark_match(dai, substream, startup))
		return;

	if (dai->driver->ops &&
	    dai->driver->ops->shutdown)
		dai->driver->ops->shutdown(substream, dai);

	/* remove marked substream */
	soc_dai_mark_pop(dai, substream, startup);
}

int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
			     struct snd_soc_pcm_runtime *rtd, int num)
{
	int ret = -ENOTSUPP;
	if (dai->driver->ops &&
	    dai->driver->ops->compress_new)
		ret = dai->driver->ops->compress_new(rtd, num);
	return soc_dai_ret(dai, ret);
}

/*
 * snd_soc_dai_stream_valid() - check if a DAI supports the given stream
 *
 * Returns true if the DAI supports the indicated stream type.
 */
bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir)
{
	struct snd_soc_pcm_stream *stream = snd_soc_dai_get_pcm_stream(dai, dir);

	/* If the codec specifies any channels at all, it supports the stream */
	return stream->channels_min;
}

/*
 * snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs
 */
void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link)
{
	bool supported[SNDRV_PCM_STREAM_LAST + 1];
	int direction;

	for_each_pcm_streams(direction) {
		struct snd_soc_dai_link_component *cpu;
		struct snd_soc_dai_link_component *codec;
		struct snd_soc_dai *dai;
		bool supported_cpu = false;
		bool supported_codec = false;
		int i;

		for_each_link_cpus(dai_link, i, cpu) {
			dai = snd_soc_find_dai_with_mutex(cpu);
			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
				supported_cpu = true;
				break;
			}
		}
		for_each_link_codecs(dai_link, i, codec) {
			dai = snd_soc_find_dai_with_mutex(codec);
			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
				supported_codec = true;
				break;
			}
		}
		supported[direction] = supported_cpu && supported_codec;
	}

	dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK];
	dai_link->dpcm_capture  = supported[SNDRV_PCM_STREAM_CAPTURE];
}
EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities);

void snd_soc_dai_action(struct snd_soc_dai *dai,
			int stream, int action)
{
	/* see snd_soc_dai_stream_active() */
	dai->stream[stream].active	+= action;

	/* see snd_soc_component_active() */
	dai->component->active		+= action;
}
EXPORT_SYMBOL_GPL(snd_soc_dai_action);

int snd_soc_dai_active(struct snd_soc_dai *dai)
{
	int stream, active;

	active = 0;
	for_each_pcm_streams(stream)
		active += dai->stream[stream].active;

	return active;
}
EXPORT_SYMBOL_GPL(snd_soc_dai_active);

int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order)
{
	struct snd_soc_dai *dai;
	int i;

	for_each_rtd_dais(rtd, i, dai) {
		if (dai->probed)
			continue;

		if (dai->driver->ops) {
			if (dai->driver->ops->probe_order != order)
				continue;

			if (dai->driver->ops->probe) {
				int ret = dai->driver->ops->probe(dai);

				if (ret < 0)
					return soc_dai_ret(dai, ret);
			}
		}
		dai->probed = 1;
	}

	return 0;
}

int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order)
{
	struct snd_soc_dai *dai;
	int i, r, ret = 0;

	for_each_rtd_dais(rtd, i, dai) {
		if (!dai->probed)
			continue;

		if (dai->driver->ops) {
			if (dai->driver->ops->remove_order != order)
				continue;

			if (dai->driver->ops->remove) {
				r = dai->driver->ops->remove(dai);
				if (r < 0)
					ret = r; /* use last error */
			}
		}
		dai->probed = 0;
	}

	return ret;
}

int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *dai;
	int i;

	for_each_rtd_dais(rtd, i, dai) {
		if (dai->driver->ops &&
		    dai->driver->ops->pcm_new) {
			int ret = dai->driver->ops->pcm_new(rtd, dai);
			if (ret < 0)
				return soc_dai_ret(dai, ret);
		}
	}

	return 0;
}

int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *dai;
	int i, ret;

	for_each_rtd_dais(rtd, i, dai) {
		if (!snd_soc_dai_stream_valid(dai, substream->stream))
			continue;
		if (dai->driver->ops &&
		    dai->driver->ops->prepare) {
			ret = dai->driver->ops->prepare(substream, dai);
			if (ret < 0)
				return soc_dai_ret(dai, ret);
		}
	}

	return 0;
}

static int soc_dai_trigger(struct snd_soc_dai *dai,
			   struct snd_pcm_substream *substream, int cmd)
{
	int ret = 0;

	if (!snd_soc_dai_stream_valid(dai, substream->stream))
		return 0;

	if (dai->driver->ops &&
	    dai->driver->ops->trigger)
		ret = dai->driver->ops->trigger(substream, cmd, dai);

	return soc_dai_ret(dai, ret);
}

int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
			    int cmd, int rollback)
{
	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *dai;
	int i, r, ret = 0;

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
	case SNDRV_PCM_TRIGGER_RESUME:
	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
		for_each_rtd_dais(rtd, i, dai) {
			ret = soc_dai_trigger(dai, substream, cmd);
			if (ret < 0)
				break;

			if (dai->driver->ops && dai->driver->ops->mute_unmute_on_trigger)
				snd_soc_dai_digital_mute(dai, 0, substream->stream);

			soc_dai_mark_push(dai, substream, trigger);
		}
		break;
	case SNDRV_PCM_TRIGGER_STOP:
	case SNDRV_PCM_TRIGGER_SUSPEND:
	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		for_each_rtd_dais(rtd, i, dai) {
			if (rollback && !soc_dai_mark_match(dai, substream, trigger))
				continue;

			if (dai->driver->ops && dai->driver->ops->mute_unmute_on_trigger)
				snd_soc_dai_digital_mute(dai, 1, substream->stream);

			r = soc_dai_trigger(dai, substream, cmd);
			if (r < 0)
				ret = r; /* use last ret */
			soc_dai_mark_pop(dai, substream, trigger);
		}
	}

	return ret;
}

int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
				    int cmd)
{
	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *dai;
	int i, ret;

	for_each_rtd_dais(rtd, i, dai) {
		if (dai->driver->ops &&
		    dai->driver->ops->bespoke_trigger) {
			ret = dai->driver->ops->bespoke_trigger(substream,
								cmd, dai);
			if (ret < 0)
				return soc_dai_ret(dai, ret);
		}
	}

	return 0;
}

void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
			   snd_pcm_sframes_t *cpu_delay,
			   snd_pcm_sframes_t *codec_delay)
{
	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *dai;
	int i;

	/*
	 * We're looking for the delay through the full audio path so it needs to
	 * be the maximum of the DAIs doing transmit and the maximum of the DAIs
	 * doing receive (ie, all CPUs and all CODECs) rather than just the maximum
	 * of all DAIs.
	 */

	/* for CPU */
	for_each_rtd_cpu_dais(rtd, i, dai)
		if (dai->driver->ops &&
		    dai->driver->ops->delay)
			*cpu_delay = max(*cpu_delay, dai->driver->ops->delay(substream, dai));

	/* for Codec */
	for_each_rtd_codec_dais(rtd, i, dai)
		if (dai->driver->ops &&
		    dai->driver->ops->delay)
			*codec_delay = max(*codec_delay, dai->driver->ops->delay(substream, dai));
}

int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
			      struct snd_compr_stream *cstream)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->startup)
		ret = dai->driver->cops->startup(cstream, dai);

	/* mark cstream if succeeded */
	if (ret == 0)
		soc_dai_mark_push(dai, cstream, compr_startup);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup);

void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
				struct snd_compr_stream *cstream,
				int rollback)
{
	if (rollback && !soc_dai_mark_match(dai, cstream, compr_startup))
		return;

	if (dai->driver->cops &&
	    dai->driver->cops->shutdown)
		dai->driver->cops->shutdown(cstream, dai);

	/* remove marked cstream */
	soc_dai_mark_pop(dai, cstream, compr_startup);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown);

int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
			      struct snd_compr_stream *cstream, int cmd)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->trigger)
		ret = dai->driver->cops->trigger(cstream, cmd, dai);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_trigger);

int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
				 struct snd_compr_stream *cstream,
				 struct snd_compr_params *params)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->set_params)
		ret = dai->driver->cops->set_params(cstream, params, dai);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_params);

int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
				 struct snd_compr_stream *cstream,
				 struct snd_codec *params)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->get_params)
		ret = dai->driver->cops->get_params(cstream, params, dai);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_params);

int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
			  struct snd_compr_stream *cstream,
			  size_t bytes)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->ack)
		ret = dai->driver->cops->ack(cstream, bytes, dai);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_ack);

int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
			      struct snd_compr_stream *cstream,
			      struct snd_compr_tstamp *tstamp)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->pointer)
		ret = dai->driver->cops->pointer(cstream, tstamp, dai);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_pointer);

int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
				   struct snd_compr_stream *cstream,
				   struct snd_compr_metadata *metadata)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->set_metadata)
		ret = dai->driver->cops->set_metadata(cstream, metadata, dai);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_metadata);

int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
				   struct snd_compr_stream *cstream,
				   struct snd_compr_metadata *metadata)
{
	int ret = 0;

	if (dai->driver->cops &&
	    dai->driver->cops->get_metadata)
		ret = dai->driver->cops->get_metadata(cstream, metadata, dai);

	return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_metadata);