xref: /linux/sound/soc/soc-dai.c (revision c9933d494c54f72290831191c09bb8488bfd5905)
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // soc-dai.c
4 //
5 // Copyright (C) 2019 Renesas Electronics Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 //
8 
9 #include <sound/soc.h>
10 #include <sound/soc-dai.h>
11 #include <sound/soc-link.h>
12 
13 #define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret)
14 static inline int _soc_dai_ret(struct snd_soc_dai *dai,
15 			       const char *func, int ret)
16 {
17 	/* Positive, Zero values are not errors */
18 	if (ret >= 0)
19 		return ret;
20 
21 	/* Negative values might be errors */
22 	switch (ret) {
23 	case -EPROBE_DEFER:
24 	case -ENOTSUPP:
25 		break;
26 	default:
27 		dev_err(dai->dev,
28 			"ASoC: error at %s on %s: %d\n",
29 			func, dai->name, ret);
30 	}
31 
32 	return ret;
33 }
34 
35 /*
36  * We might want to check substream by using list.
37  * In such case, we can update these macros.
38  */
39 #define soc_dai_mark_push(dai, substream, tgt)	((dai)->mark_##tgt = substream)
40 #define soc_dai_mark_pop(dai, substream, tgt)	((dai)->mark_##tgt = NULL)
41 #define soc_dai_mark_match(dai, substream, tgt)	((dai)->mark_##tgt == substream)
42 
43 /**
44  * snd_soc_dai_set_sysclk - configure DAI system or master clock.
45  * @dai: DAI
46  * @clk_id: DAI specific clock ID
47  * @freq: new clock frequency in Hz
48  * @dir: new clock direction - input/output.
49  *
50  * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
51  */
52 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
53 			   unsigned int freq, int dir)
54 {
55 	int ret;
56 
57 	if (dai->driver->ops &&
58 	    dai->driver->ops->set_sysclk)
59 		ret = dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
60 	else
61 		ret = snd_soc_component_set_sysclk(dai->component, clk_id, 0,
62 						   freq, dir);
63 
64 	return soc_dai_ret(dai, ret);
65 }
66 EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
67 
68 /**
69  * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
70  * @dai: DAI
71  * @div_id: DAI specific clock divider ID
72  * @div: new clock divisor.
73  *
74  * Configures the clock dividers. This is used to derive the best DAI bit and
75  * frame clocks from the system or master clock. It's best to set the DAI bit
76  * and frame clocks as low as possible to save system power.
77  */
78 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
79 			   int div_id, int div)
80 {
81 	int ret = -EINVAL;
82 
83 	if (dai->driver->ops &&
84 	    dai->driver->ops->set_clkdiv)
85 		ret = dai->driver->ops->set_clkdiv(dai, div_id, div);
86 
87 	return soc_dai_ret(dai, ret);
88 }
89 EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
90 
91 /**
92  * snd_soc_dai_set_pll - configure DAI PLL.
93  * @dai: DAI
94  * @pll_id: DAI specific PLL ID
95  * @source: DAI specific source for the PLL
96  * @freq_in: PLL input clock frequency in Hz
97  * @freq_out: requested PLL output clock frequency in Hz
98  *
99  * Configures and enables PLL to generate output clock based on input clock.
100  */
101 int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
102 			unsigned int freq_in, unsigned int freq_out)
103 {
104 	int ret;
105 
106 	if (dai->driver->ops &&
107 	    dai->driver->ops->set_pll)
108 		ret = dai->driver->ops->set_pll(dai, pll_id, source,
109 						freq_in, freq_out);
110 	else
111 		ret = snd_soc_component_set_pll(dai->component, pll_id, source,
112 						freq_in, freq_out);
113 
114 	return soc_dai_ret(dai, ret);
115 }
116 EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
117 
118 /**
119  * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
120  * @dai: DAI
121  * @ratio: Ratio of BCLK to Sample rate.
122  *
123  * Configures the DAI for a preset BCLK to sample rate ratio.
124  */
125 int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
126 {
127 	int ret = -EINVAL;
128 
129 	if (dai->driver->ops &&
130 	    dai->driver->ops->set_bclk_ratio)
131 		ret = dai->driver->ops->set_bclk_ratio(dai, ratio);
132 
133 	return soc_dai_ret(dai, ret);
134 }
135 EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
136 
137 int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd)
138 {
139 	struct snd_soc_dai *dai;
140 	int i, max = 0;
141 
142 	/*
143 	 * return max num if *ALL* DAIs have .auto_selectable_formats
144 	 */
145 	for_each_rtd_dais(rtd, i, dai) {
146 		if (dai->driver->ops &&
147 		    dai->driver->ops->num_auto_selectable_formats)
148 			max = max(max, dai->driver->ops->num_auto_selectable_formats);
149 		else
150 			return 0;
151 	}
152 
153 	return max;
154 }
155 
156 /**
157  * snd_soc_dai_get_fmt - get supported audio format.
158  * @dai: DAI
159  * @priority: priority level of supported audio format.
160  *
161  * This should return only formats implemented with high
162  * quality by the DAI so that the core can configure a
163  * format which will work well with other devices.
164  * For example devices which don't support both edges of the
165  * LRCLK signal in I2S style formats should only list DSP
166  * modes.  This will mean that sometimes fewer formats
167  * are reported here than are supported by set_fmt().
168  */
169 u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority)
170 {
171 	const struct snd_soc_dai_ops *ops = dai->driver->ops;
172 	u64 fmt = 0;
173 	int i, max = 0, until = priority;
174 
175 	/*
176 	 * Collect auto_selectable_formats until priority
177 	 *
178 	 * ex)
179 	 *	auto_selectable_formats[] = { A, B, C };
180 	 *	(A, B, C = SND_SOC_POSSIBLE_DAIFMT_xxx)
181 	 *
182 	 * priority = 1 :	A
183 	 * priority = 2 :	A | B
184 	 * priority = 3 :	A | B | C
185 	 * priority = 4 :	A | B | C
186 	 * ...
187 	 */
188 	if (ops)
189 		max = ops->num_auto_selectable_formats;
190 
191 	if (max < until)
192 		until = max;
193 
194 	for (i = 0; i < until; i++)
195 		fmt |= ops->auto_selectable_formats[i];
196 
197 	return fmt;
198 }
199 
200 /**
201  * snd_soc_dai_set_fmt - configure DAI hardware audio format.
202  * @dai: DAI
203  * @fmt: SND_SOC_DAIFMT_* format value.
204  *
205  * Configures the DAI hardware format and clocking.
206  */
207 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
208 {
209 	int ret = -ENOTSUPP;
210 
211 	if (dai->driver->ops &&
212 	    dai->driver->ops->set_fmt)
213 		ret = dai->driver->ops->set_fmt(dai, fmt);
214 
215 	return soc_dai_ret(dai, ret);
216 }
217 EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
218 
219 /**
220  * snd_soc_xlate_tdm_slot_mask - generate tx/rx slot mask.
221  * @slots: Number of slots in use.
222  * @tx_mask: bitmask representing active TX slots.
223  * @rx_mask: bitmask representing active RX slots.
224  *
225  * Generates the TDM tx and rx slot default masks for DAI.
226  */
227 static int snd_soc_xlate_tdm_slot_mask(unsigned int slots,
228 				       unsigned int *tx_mask,
229 				       unsigned int *rx_mask)
230 {
231 	if (*tx_mask || *rx_mask)
232 		return 0;
233 
234 	if (!slots)
235 		return -EINVAL;
236 
237 	*tx_mask = (1 << slots) - 1;
238 	*rx_mask = (1 << slots) - 1;
239 
240 	return 0;
241 }
242 
243 /**
244  * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation
245  * @dai: The DAI to configure
246  * @tx_mask: bitmask representing active TX slots.
247  * @rx_mask: bitmask representing active RX slots.
248  * @slots: Number of slots in use.
249  * @slot_width: Width in bits for each slot.
250  *
251  * This function configures the specified DAI for TDM operation. @slot contains
252  * the total number of slots of the TDM stream and @slot_with the width of each
253  * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the
254  * active slots of the TDM stream for the specified DAI, i.e. which slots the
255  * DAI should write to or read from. If a bit is set the corresponding slot is
256  * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to
257  * the first slot, bit 1 to the second slot and so on. The first active slot
258  * maps to the first channel of the DAI, the second active slot to the second
259  * channel and so on.
260  *
261  * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask,
262  * @rx_mask and @slot_width will be ignored.
263  *
264  * Returns 0 on success, a negative error code otherwise.
265  */
266 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
267 			     unsigned int tx_mask, unsigned int rx_mask,
268 			     int slots, int slot_width)
269 {
270 	int ret = -ENOTSUPP;
271 
272 	if (dai->driver->ops &&
273 	    dai->driver->ops->xlate_tdm_slot_mask)
274 		dai->driver->ops->xlate_tdm_slot_mask(slots,
275 						      &tx_mask, &rx_mask);
276 	else
277 		snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);
278 
279 	dai->tx_mask = tx_mask;
280 	dai->rx_mask = rx_mask;
281 
282 	if (dai->driver->ops &&
283 	    dai->driver->ops->set_tdm_slot)
284 		ret = dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
285 						      slots, slot_width);
286 	return soc_dai_ret(dai, ret);
287 }
288 EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
289 
290 /**
291  * snd_soc_dai_set_channel_map - configure DAI audio channel map
292  * @dai: DAI
293  * @tx_num: how many TX channels
294  * @tx_slot: pointer to an array which imply the TX slot number channel
295  *           0~num-1 uses
296  * @rx_num: how many RX channels
297  * @rx_slot: pointer to an array which imply the RX slot number channel
298  *           0~num-1 uses
299  *
300  * configure the relationship between channel number and TDM slot number.
301  */
302 int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
303 				unsigned int tx_num, unsigned int *tx_slot,
304 				unsigned int rx_num, unsigned int *rx_slot)
305 {
306 	int ret = -ENOTSUPP;
307 
308 	if (dai->driver->ops &&
309 	    dai->driver->ops->set_channel_map)
310 		ret = dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
311 							rx_num, rx_slot);
312 	return soc_dai_ret(dai, ret);
313 }
314 EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
315 
316 /**
317  * snd_soc_dai_get_channel_map - Get DAI audio channel map
318  * @dai: DAI
319  * @tx_num: how many TX channels
320  * @tx_slot: pointer to an array which imply the TX slot number channel
321  *           0~num-1 uses
322  * @rx_num: how many RX channels
323  * @rx_slot: pointer to an array which imply the RX slot number channel
324  *           0~num-1 uses
325  */
326 int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
327 				unsigned int *tx_num, unsigned int *tx_slot,
328 				unsigned int *rx_num, unsigned int *rx_slot)
329 {
330 	int ret = -ENOTSUPP;
331 
332 	if (dai->driver->ops &&
333 	    dai->driver->ops->get_channel_map)
334 		ret = dai->driver->ops->get_channel_map(dai, tx_num, tx_slot,
335 							rx_num, rx_slot);
336 	return soc_dai_ret(dai, ret);
337 }
338 EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map);
339 
340 /**
341  * snd_soc_dai_set_tristate - configure DAI system or master clock.
342  * @dai: DAI
343  * @tristate: tristate enable
344  *
345  * Tristates the DAI so that others can use it.
346  */
347 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
348 {
349 	int ret = -EINVAL;
350 
351 	if (dai->driver->ops &&
352 	    dai->driver->ops->set_tristate)
353 		ret = dai->driver->ops->set_tristate(dai, tristate);
354 
355 	return soc_dai_ret(dai, ret);
356 }
357 EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
358 
359 /**
360  * snd_soc_dai_digital_mute - configure DAI system or master clock.
361  * @dai: DAI
362  * @mute: mute enable
363  * @direction: stream to mute
364  *
365  * Mutes the DAI DAC.
366  */
367 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
368 			     int direction)
369 {
370 	int ret = -ENOTSUPP;
371 
372 	/*
373 	 * ignore if direction was CAPTURE
374 	 * and it had .no_capture_mute flag
375 	 */
376 	if (dai->driver->ops &&
377 	    dai->driver->ops->mute_stream &&
378 	    (direction == SNDRV_PCM_STREAM_PLAYBACK ||
379 	     !dai->driver->ops->no_capture_mute))
380 		ret = dai->driver->ops->mute_stream(dai, mute, direction);
381 
382 	return soc_dai_ret(dai, ret);
383 }
384 EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
385 
386 int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
387 			  struct snd_pcm_substream *substream,
388 			  struct snd_pcm_hw_params *params)
389 {
390 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
391 	int ret = 0;
392 
393 	if (dai->driver->ops &&
394 	    dai->driver->ops->hw_params) {
395 		/* perform any topology hw_params fixups before DAI  */
396 		ret = snd_soc_link_be_hw_params_fixup(rtd, params);
397 		if (ret < 0)
398 			goto end;
399 
400 		ret = dai->driver->ops->hw_params(substream, params, dai);
401 	}
402 
403 	/* mark substream if succeeded */
404 	if (ret == 0)
405 		soc_dai_mark_push(dai, substream, hw_params);
406 end:
407 	return soc_dai_ret(dai, ret);
408 }
409 
410 void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
411 			 struct snd_pcm_substream *substream,
412 			 int rollback)
413 {
414 	if (rollback && !soc_dai_mark_match(dai, substream, hw_params))
415 		return;
416 
417 	if (dai->driver->ops &&
418 	    dai->driver->ops->hw_free)
419 		dai->driver->ops->hw_free(substream, dai);
420 
421 	/* remove marked substream */
422 	soc_dai_mark_pop(dai, substream, hw_params);
423 }
424 
425 int snd_soc_dai_startup(struct snd_soc_dai *dai,
426 			struct snd_pcm_substream *substream)
427 {
428 	int ret = 0;
429 
430 	if (dai->driver->ops &&
431 	    dai->driver->ops->startup)
432 		ret = dai->driver->ops->startup(substream, dai);
433 
434 	/* mark substream if succeeded */
435 	if (ret == 0)
436 		soc_dai_mark_push(dai, substream, startup);
437 
438 	return soc_dai_ret(dai, ret);
439 }
440 
441 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
442 			  struct snd_pcm_substream *substream,
443 			  int rollback)
444 {
445 	if (rollback && !soc_dai_mark_match(dai, substream, startup))
446 		return;
447 
448 	if (dai->driver->ops &&
449 	    dai->driver->ops->shutdown)
450 		dai->driver->ops->shutdown(substream, dai);
451 
452 	/* remove marked substream */
453 	soc_dai_mark_pop(dai, substream, startup);
454 }
455 
456 int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
457 			     struct snd_soc_pcm_runtime *rtd, int num)
458 {
459 	int ret = -ENOTSUPP;
460 	if (dai->driver->compress_new)
461 		ret = dai->driver->compress_new(rtd, num);
462 	return soc_dai_ret(dai, ret);
463 }
464 
465 /*
466  * snd_soc_dai_stream_valid() - check if a DAI supports the given stream
467  *
468  * Returns true if the DAI supports the indicated stream type.
469  */
470 bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir)
471 {
472 	struct snd_soc_pcm_stream *stream = snd_soc_dai_get_pcm_stream(dai, dir);
473 
474 	/* If the codec specifies any channels at all, it supports the stream */
475 	return stream->channels_min;
476 }
477 
478 /*
479  * snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs
480  */
481 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link)
482 {
483 	bool supported[SNDRV_PCM_STREAM_LAST + 1];
484 	int direction;
485 
486 	for_each_pcm_streams(direction) {
487 		struct snd_soc_dai_link_component *cpu;
488 		struct snd_soc_dai_link_component *codec;
489 		struct snd_soc_dai *dai;
490 		bool supported_cpu = false;
491 		bool supported_codec = false;
492 		int i;
493 
494 		for_each_link_cpus(dai_link, i, cpu) {
495 			dai = snd_soc_find_dai_with_mutex(cpu);
496 			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
497 				supported_cpu = true;
498 				break;
499 			}
500 		}
501 		for_each_link_codecs(dai_link, i, codec) {
502 			dai = snd_soc_find_dai_with_mutex(codec);
503 			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
504 				supported_codec = true;
505 				break;
506 			}
507 		}
508 		supported[direction] = supported_cpu && supported_codec;
509 	}
510 
511 	dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK];
512 	dai_link->dpcm_capture  = supported[SNDRV_PCM_STREAM_CAPTURE];
513 }
514 EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities);
515 
516 void snd_soc_dai_action(struct snd_soc_dai *dai,
517 			int stream, int action)
518 {
519 	/* see snd_soc_dai_stream_active() */
520 	dai->stream_active[stream]	+= action;
521 
522 	/* see snd_soc_component_active() */
523 	dai->component->active		+= action;
524 }
525 EXPORT_SYMBOL_GPL(snd_soc_dai_action);
526 
527 int snd_soc_dai_active(struct snd_soc_dai *dai)
528 {
529 	int stream, active;
530 
531 	active = 0;
532 	for_each_pcm_streams(stream)
533 		active += dai->stream_active[stream];
534 
535 	return active;
536 }
537 EXPORT_SYMBOL_GPL(snd_soc_dai_active);
538 
539 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order)
540 {
541 	struct snd_soc_dai *dai;
542 	int i;
543 
544 	for_each_rtd_dais(rtd, i, dai) {
545 		if (dai->driver->probe_order != order)
546 			continue;
547 
548 		if (dai->driver->probe) {
549 			int ret = dai->driver->probe(dai);
550 
551 			if (ret < 0)
552 				return soc_dai_ret(dai, ret);
553 		}
554 
555 		dai->probed = 1;
556 	}
557 
558 	return 0;
559 }
560 
561 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order)
562 {
563 	struct snd_soc_dai *dai;
564 	int i, r, ret = 0;
565 
566 	for_each_rtd_dais(rtd, i, dai) {
567 		if (dai->driver->remove_order != order)
568 			continue;
569 
570 		if (dai->probed &&
571 		    dai->driver->remove) {
572 			r = dai->driver->remove(dai);
573 			if (r < 0)
574 				ret = r; /* use last error */
575 		}
576 
577 		dai->probed = 0;
578 	}
579 
580 	return ret;
581 }
582 
583 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd)
584 {
585 	struct snd_soc_dai *dai;
586 	int i;
587 
588 	for_each_rtd_dais(rtd, i, dai) {
589 		if (dai->driver->pcm_new) {
590 			int ret = dai->driver->pcm_new(rtd, dai);
591 			if (ret < 0)
592 				return soc_dai_ret(dai, ret);
593 		}
594 	}
595 
596 	return 0;
597 }
598 
599 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
600 {
601 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
602 	struct snd_soc_dai *dai;
603 	int i, ret;
604 
605 	for_each_rtd_dais(rtd, i, dai) {
606 		if (dai->driver->ops &&
607 		    dai->driver->ops->prepare) {
608 			ret = dai->driver->ops->prepare(substream, dai);
609 			if (ret < 0)
610 				return soc_dai_ret(dai, ret);
611 		}
612 	}
613 
614 	return 0;
615 }
616 
617 static int soc_dai_trigger(struct snd_soc_dai *dai,
618 			   struct snd_pcm_substream *substream, int cmd)
619 {
620 	int ret = 0;
621 
622 	if (dai->driver->ops &&
623 	    dai->driver->ops->trigger)
624 		ret = dai->driver->ops->trigger(substream, cmd, dai);
625 
626 	return soc_dai_ret(dai, ret);
627 }
628 
629 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
630 			    int cmd, int rollback)
631 {
632 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
633 	struct snd_soc_dai *dai;
634 	int i, r, ret = 0;
635 
636 	switch (cmd) {
637 	case SNDRV_PCM_TRIGGER_START:
638 	case SNDRV_PCM_TRIGGER_RESUME:
639 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
640 		for_each_rtd_dais(rtd, i, dai) {
641 			ret = soc_dai_trigger(dai, substream, cmd);
642 			if (ret < 0)
643 				break;
644 			soc_dai_mark_push(dai, substream, trigger);
645 		}
646 		break;
647 	case SNDRV_PCM_TRIGGER_STOP:
648 	case SNDRV_PCM_TRIGGER_SUSPEND:
649 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
650 		for_each_rtd_dais(rtd, i, dai) {
651 			if (rollback && !soc_dai_mark_match(dai, substream, trigger))
652 				continue;
653 
654 			r = soc_dai_trigger(dai, substream, cmd);
655 			if (r < 0)
656 				ret = r; /* use last ret */
657 			soc_dai_mark_pop(dai, substream, trigger);
658 		}
659 	}
660 
661 	return ret;
662 }
663 
664 int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
665 				    int cmd)
666 {
667 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
668 	struct snd_soc_dai *dai;
669 	int i, ret;
670 
671 	for_each_rtd_dais(rtd, i, dai) {
672 		if (dai->driver->ops &&
673 		    dai->driver->ops->bespoke_trigger) {
674 			ret = dai->driver->ops->bespoke_trigger(substream,
675 								cmd, dai);
676 			if (ret < 0)
677 				return soc_dai_ret(dai, ret);
678 		}
679 	}
680 
681 	return 0;
682 }
683 
684 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
685 			   snd_pcm_sframes_t *cpu_delay,
686 			   snd_pcm_sframes_t *codec_delay)
687 {
688 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
689 	struct snd_soc_dai *dai;
690 	int i;
691 
692 	/*
693 	 * We're looking for the delay through the full audio path so it needs to
694 	 * be the maximum of the DAIs doing transmit and the maximum of the DAIs
695 	 * doing receive (ie, all CPUs and all CODECs) rather than just the maximum
696 	 * of all DAIs.
697 	 */
698 
699 	/* for CPU */
700 	for_each_rtd_cpu_dais(rtd, i, dai)
701 		if (dai->driver->ops &&
702 		    dai->driver->ops->delay)
703 			*cpu_delay = max(*cpu_delay, dai->driver->ops->delay(substream, dai));
704 
705 	/* for Codec */
706 	for_each_rtd_codec_dais(rtd, i, dai)
707 		if (dai->driver->ops &&
708 		    dai->driver->ops->delay)
709 			*codec_delay = max(*codec_delay, dai->driver->ops->delay(substream, dai));
710 }
711 
712 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
713 			      struct snd_compr_stream *cstream)
714 {
715 	int ret = 0;
716 
717 	if (dai->driver->cops &&
718 	    dai->driver->cops->startup)
719 		ret = dai->driver->cops->startup(cstream, dai);
720 
721 	/* mark cstream if succeeded */
722 	if (ret == 0)
723 		soc_dai_mark_push(dai, cstream, compr_startup);
724 
725 	return soc_dai_ret(dai, ret);
726 }
727 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup);
728 
729 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
730 				struct snd_compr_stream *cstream,
731 				int rollback)
732 {
733 	if (rollback && !soc_dai_mark_match(dai, cstream, compr_startup))
734 		return;
735 
736 	if (dai->driver->cops &&
737 	    dai->driver->cops->shutdown)
738 		dai->driver->cops->shutdown(cstream, dai);
739 
740 	/* remove marked cstream */
741 	soc_dai_mark_pop(dai, cstream, compr_startup);
742 }
743 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown);
744 
745 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
746 			      struct snd_compr_stream *cstream, int cmd)
747 {
748 	int ret = 0;
749 
750 	if (dai->driver->cops &&
751 	    dai->driver->cops->trigger)
752 		ret = dai->driver->cops->trigger(cstream, cmd, dai);
753 
754 	return soc_dai_ret(dai, ret);
755 }
756 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_trigger);
757 
758 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
759 				 struct snd_compr_stream *cstream,
760 				 struct snd_compr_params *params)
761 {
762 	int ret = 0;
763 
764 	if (dai->driver->cops &&
765 	    dai->driver->cops->set_params)
766 		ret = dai->driver->cops->set_params(cstream, params, dai);
767 
768 	return soc_dai_ret(dai, ret);
769 }
770 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_params);
771 
772 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
773 				 struct snd_compr_stream *cstream,
774 				 struct snd_codec *params)
775 {
776 	int ret = 0;
777 
778 	if (dai->driver->cops &&
779 	    dai->driver->cops->get_params)
780 		ret = dai->driver->cops->get_params(cstream, params, dai);
781 
782 	return soc_dai_ret(dai, ret);
783 }
784 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_params);
785 
786 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
787 			  struct snd_compr_stream *cstream,
788 			  size_t bytes)
789 {
790 	int ret = 0;
791 
792 	if (dai->driver->cops &&
793 	    dai->driver->cops->ack)
794 		ret = dai->driver->cops->ack(cstream, bytes, dai);
795 
796 	return soc_dai_ret(dai, ret);
797 }
798 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_ack);
799 
800 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
801 			      struct snd_compr_stream *cstream,
802 			      struct snd_compr_tstamp *tstamp)
803 {
804 	int ret = 0;
805 
806 	if (dai->driver->cops &&
807 	    dai->driver->cops->pointer)
808 		ret = dai->driver->cops->pointer(cstream, tstamp, dai);
809 
810 	return soc_dai_ret(dai, ret);
811 }
812 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_pointer);
813 
814 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
815 				   struct snd_compr_stream *cstream,
816 				   struct snd_compr_metadata *metadata)
817 {
818 	int ret = 0;
819 
820 	if (dai->driver->cops &&
821 	    dai->driver->cops->set_metadata)
822 		ret = dai->driver->cops->set_metadata(cstream, metadata, dai);
823 
824 	return soc_dai_ret(dai, ret);
825 }
826 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_metadata);
827 
828 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
829 				   struct snd_compr_stream *cstream,
830 				   struct snd_compr_metadata *metadata)
831 {
832 	int ret = 0;
833 
834 	if (dai->driver->cops &&
835 	    dai->driver->cops->get_metadata)
836 		ret = dai->driver->cops->get_metadata(cstream, metadata, dai);
837 
838 	return soc_dai_ret(dai, ret);
839 }
840 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_metadata);
841