1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // soc-component.c
4 //
5 // Copyright 2009-2011 Wolfson Microelectronics PLC.
6 // Copyright (C) 2019 Renesas Electronics Corp.
7 //
8 // Mark Brown <broonie@opensource.wolfsonmicro.com>
9 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
10 //
11 #include <linux/module.h>
12 #include <linux/pm_runtime.h>
13 #include <sound/soc.h>
14 #include <linux/bitops.h>
15 
16 #define soc_component_ret(dai, ret) _soc_component_ret(dai, __func__, ret, -1)
17 #define soc_component_ret_reg_rw(dai, ret, reg) _soc_component_ret(dai, __func__, ret, reg)
_soc_component_ret(struct snd_soc_component * component,const char * func,int ret,int reg)18 static inline int _soc_component_ret(struct snd_soc_component *component,
19 				     const char *func, int ret, int reg)
20 {
21 	/* Positive/Zero values are not errors */
22 	if (ret >= 0)
23 		return ret;
24 
25 	/* Negative values might be errors */
26 	switch (ret) {
27 	case -EPROBE_DEFER:
28 	case -ENOTSUPP:
29 		break;
30 	default:
31 		if (reg == -1)
32 			dev_err(component->dev,
33 				"ASoC: error at %s on %s: %d\n",
34 				func, component->name, ret);
35 		else
36 			dev_err(component->dev,
37 				"ASoC: error at %s on %s for register: [0x%08x] %d\n",
38 				func, component->name, reg, ret);
39 	}
40 
41 	return ret;
42 }
43 
soc_component_field_shift(struct snd_soc_component * component,unsigned int mask)44 static inline int soc_component_field_shift(struct snd_soc_component *component,
45 					    unsigned int mask)
46 {
47 	if (!mask) {
48 		dev_err(component->dev,	"ASoC: error field mask is zero for %s\n",
49 			component->name);
50 		return 0;
51 	}
52 
53 	return (ffs(mask) - 1);
54 }
55 
56 /*
57  * We might want to check substream by using list.
58  * In such case, we can update these macros.
59  */
60 #define soc_component_mark_push(component, substream, tgt)	((component)->mark_##tgt = substream)
61 #define soc_component_mark_pop(component, substream, tgt)	((component)->mark_##tgt = NULL)
62 #define soc_component_mark_match(component, substream, tgt)	((component)->mark_##tgt == substream)
63 
snd_soc_component_set_aux(struct snd_soc_component * component,struct snd_soc_aux_dev * aux)64 void snd_soc_component_set_aux(struct snd_soc_component *component,
65 			       struct snd_soc_aux_dev *aux)
66 {
67 	component->init = (aux) ? aux->init : NULL;
68 }
69 
snd_soc_component_init(struct snd_soc_component * component)70 int snd_soc_component_init(struct snd_soc_component *component)
71 {
72 	int ret = 0;
73 
74 	if (component->init)
75 		ret = component->init(component);
76 
77 	return soc_component_ret(component, ret);
78 }
79 
80 /**
81  * snd_soc_component_set_sysclk - configure COMPONENT system or master clock.
82  * @component: COMPONENT
83  * @clk_id: DAI specific clock ID
84  * @source: Source for the clock
85  * @freq: new clock frequency in Hz
86  * @dir: new clock direction - input/output.
87  *
88  * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
89  */
snd_soc_component_set_sysclk(struct snd_soc_component * component,int clk_id,int source,unsigned int freq,int dir)90 int snd_soc_component_set_sysclk(struct snd_soc_component *component,
91 				 int clk_id, int source, unsigned int freq,
92 				 int dir)
93 {
94 	int ret = -ENOTSUPP;
95 
96 	if (component->driver->set_sysclk)
97 		ret = component->driver->set_sysclk(component, clk_id, source,
98 						     freq, dir);
99 
100 	return soc_component_ret(component, ret);
101 }
102 EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk);
103 
104 /*
105  * snd_soc_component_set_pll - configure component PLL.
106  * @component: COMPONENT
107  * @pll_id: DAI specific PLL ID
108  * @source: DAI specific source for the PLL
109  * @freq_in: PLL input clock frequency in Hz
110  * @freq_out: requested PLL output clock frequency in Hz
111  *
112  * Configures and enables PLL to generate output clock based on input clock.
113  */
snd_soc_component_set_pll(struct snd_soc_component * component,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)114 int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
115 			      int source, unsigned int freq_in,
116 			      unsigned int freq_out)
117 {
118 	int ret = -EINVAL;
119 
120 	if (component->driver->set_pll)
121 		ret = component->driver->set_pll(component, pll_id, source,
122 						  freq_in, freq_out);
123 
124 	return soc_component_ret(component, ret);
125 }
126 EXPORT_SYMBOL_GPL(snd_soc_component_set_pll);
127 
snd_soc_component_seq_notifier(struct snd_soc_component * component,enum snd_soc_dapm_type type,int subseq)128 void snd_soc_component_seq_notifier(struct snd_soc_component *component,
129 				    enum snd_soc_dapm_type type, int subseq)
130 {
131 	if (component->driver->seq_notifier)
132 		component->driver->seq_notifier(component, type, subseq);
133 }
134 
snd_soc_component_stream_event(struct snd_soc_component * component,int event)135 int snd_soc_component_stream_event(struct snd_soc_component *component,
136 				   int event)
137 {
138 	int ret = 0;
139 
140 	if (component->driver->stream_event)
141 		ret = component->driver->stream_event(component, event);
142 
143 	return soc_component_ret(component, ret);
144 }
145 
snd_soc_component_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)146 int snd_soc_component_set_bias_level(struct snd_soc_component *component,
147 				     enum snd_soc_bias_level level)
148 {
149 	int ret = 0;
150 
151 	if (component->driver->set_bias_level)
152 		ret = component->driver->set_bias_level(component, level);
153 
154 	return soc_component_ret(component, ret);
155 }
156 
snd_soc_component_enable_pin(struct snd_soc_component * component,const char * pin)157 int snd_soc_component_enable_pin(struct snd_soc_component *component,
158 				 const char *pin)
159 {
160 	struct snd_soc_dapm_context *dapm =
161 		snd_soc_component_get_dapm(component);
162 	return snd_soc_dapm_enable_pin(dapm, pin);
163 }
164 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
165 
snd_soc_component_enable_pin_unlocked(struct snd_soc_component * component,const char * pin)166 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
167 					  const char *pin)
168 {
169 	struct snd_soc_dapm_context *dapm =
170 		snd_soc_component_get_dapm(component);
171 	return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
172 }
173 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
174 
snd_soc_component_disable_pin(struct snd_soc_component * component,const char * pin)175 int snd_soc_component_disable_pin(struct snd_soc_component *component,
176 				  const char *pin)
177 {
178 	struct snd_soc_dapm_context *dapm =
179 		snd_soc_component_get_dapm(component);
180 	return snd_soc_dapm_disable_pin(dapm, pin);
181 }
182 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
183 
snd_soc_component_disable_pin_unlocked(struct snd_soc_component * component,const char * pin)184 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
185 					   const char *pin)
186 {
187 	struct snd_soc_dapm_context *dapm =
188 		snd_soc_component_get_dapm(component);
189 	return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
190 }
191 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
192 
snd_soc_component_nc_pin(struct snd_soc_component * component,const char * pin)193 int snd_soc_component_nc_pin(struct snd_soc_component *component,
194 			     const char *pin)
195 {
196 	struct snd_soc_dapm_context *dapm =
197 		snd_soc_component_get_dapm(component);
198 	return snd_soc_dapm_nc_pin(dapm, pin);
199 }
200 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
201 
snd_soc_component_nc_pin_unlocked(struct snd_soc_component * component,const char * pin)202 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
203 				      const char *pin)
204 {
205 	struct snd_soc_dapm_context *dapm =
206 		snd_soc_component_get_dapm(component);
207 	return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
208 }
209 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
210 
snd_soc_component_get_pin_status(struct snd_soc_component * component,const char * pin)211 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
212 				     const char *pin)
213 {
214 	struct snd_soc_dapm_context *dapm =
215 		snd_soc_component_get_dapm(component);
216 	return snd_soc_dapm_get_pin_status(dapm, pin);
217 }
218 EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
219 
snd_soc_component_force_enable_pin(struct snd_soc_component * component,const char * pin)220 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
221 				       const char *pin)
222 {
223 	struct snd_soc_dapm_context *dapm =
224 		snd_soc_component_get_dapm(component);
225 	return snd_soc_dapm_force_enable_pin(dapm, pin);
226 }
227 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
228 
snd_soc_component_force_enable_pin_unlocked(struct snd_soc_component * component,const char * pin)229 int snd_soc_component_force_enable_pin_unlocked(
230 	struct snd_soc_component *component,
231 	const char *pin)
232 {
233 	struct snd_soc_dapm_context *dapm =
234 		snd_soc_component_get_dapm(component);
235 	return snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);
236 }
237 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
238 
snd_soc_component_notify_control(struct snd_soc_component * component,const char * const ctl)239 int snd_soc_component_notify_control(struct snd_soc_component *component,
240 				     const char * const ctl)
241 {
242 	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
243 	struct snd_kcontrol *kctl;
244 
245 	/* When updating, change also snd_soc_dapm_widget_name_cmp() */
246 	if (component->name_prefix)
247 		snprintf(name, ARRAY_SIZE(name), "%s %s", component->name_prefix, ctl);
248 	else
249 		snprintf(name, ARRAY_SIZE(name), "%s", ctl);
250 
251 	kctl = snd_soc_card_get_kcontrol(component->card, name);
252 	if (!kctl)
253 		return soc_component_ret(component, -EINVAL);
254 
255 	snd_ctl_notify(component->card->snd_card,
256 		       SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
257 
258 	return 0;
259 }
260 EXPORT_SYMBOL_GPL(snd_soc_component_notify_control);
261 
262 /**
263  * snd_soc_component_set_jack - configure component jack.
264  * @component: COMPONENTs
265  * @jack: structure to use for the jack
266  * @data: can be used if codec driver need extra data for configuring jack
267  *
268  * Configures and enables jack detection function.
269  */
snd_soc_component_set_jack(struct snd_soc_component * component,struct snd_soc_jack * jack,void * data)270 int snd_soc_component_set_jack(struct snd_soc_component *component,
271 			       struct snd_soc_jack *jack, void *data)
272 {
273 	int ret = -ENOTSUPP;
274 
275 	if (component->driver->set_jack)
276 		ret = component->driver->set_jack(component, jack, data);
277 
278 	return soc_component_ret(component, ret);
279 }
280 EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
281 
282 /**
283  * snd_soc_component_get_jack_type
284  * @component: COMPONENTs
285  *
286  * Returns the jack type of the component
287  * This can either be the supported type or one read from
288  * devicetree with the property: jack-type.
289  */
snd_soc_component_get_jack_type(struct snd_soc_component * component)290 int snd_soc_component_get_jack_type(
291 	struct snd_soc_component *component)
292 {
293 	int ret = -ENOTSUPP;
294 
295 	if (component->driver->get_jack_type)
296 		ret = component->driver->get_jack_type(component);
297 
298 	return soc_component_ret(component, ret);
299 }
300 EXPORT_SYMBOL_GPL(snd_soc_component_get_jack_type);
301 
snd_soc_component_module_get(struct snd_soc_component * component,void * mark,int upon_open)302 int snd_soc_component_module_get(struct snd_soc_component *component,
303 				 void *mark, int upon_open)
304 {
305 	int ret = 0;
306 
307 	if (component->driver->module_get_upon_open == !!upon_open &&
308 	    !try_module_get(component->dev->driver->owner))
309 		ret = -ENODEV;
310 
311 	/* mark module if succeeded */
312 	if (ret == 0)
313 		soc_component_mark_push(component, mark, module);
314 
315 	return soc_component_ret(component, ret);
316 }
317 
snd_soc_component_module_put(struct snd_soc_component * component,void * mark,int upon_open,int rollback)318 void snd_soc_component_module_put(struct snd_soc_component *component,
319 				  void *mark, int upon_open, int rollback)
320 {
321 	if (rollback && !soc_component_mark_match(component, mark, module))
322 		return;
323 
324 	if (component->driver->module_get_upon_open == !!upon_open)
325 		module_put(component->dev->driver->owner);
326 
327 	/* remove the mark from module */
328 	soc_component_mark_pop(component, mark, module);
329 }
330 
snd_soc_component_open(struct snd_soc_component * component,struct snd_pcm_substream * substream)331 int snd_soc_component_open(struct snd_soc_component *component,
332 			   struct snd_pcm_substream *substream)
333 {
334 	int ret = 0;
335 
336 	if (component->driver->open)
337 		ret = component->driver->open(component, substream);
338 
339 	/* mark substream if succeeded */
340 	if (ret == 0)
341 		soc_component_mark_push(component, substream, open);
342 
343 	return soc_component_ret(component, ret);
344 }
345 
snd_soc_component_close(struct snd_soc_component * component,struct snd_pcm_substream * substream,int rollback)346 int snd_soc_component_close(struct snd_soc_component *component,
347 			    struct snd_pcm_substream *substream,
348 			    int rollback)
349 {
350 	int ret = 0;
351 
352 	if (rollback && !soc_component_mark_match(component, substream, open))
353 		return 0;
354 
355 	if (component->driver->close)
356 		ret = component->driver->close(component, substream);
357 
358 	/* remove marked substream */
359 	soc_component_mark_pop(component, substream, open);
360 
361 	return soc_component_ret(component, ret);
362 }
363 
snd_soc_component_suspend(struct snd_soc_component * component)364 void snd_soc_component_suspend(struct snd_soc_component *component)
365 {
366 	if (component->driver->suspend)
367 		component->driver->suspend(component);
368 	component->suspended = 1;
369 }
370 
snd_soc_component_resume(struct snd_soc_component * component)371 void snd_soc_component_resume(struct snd_soc_component *component)
372 {
373 	if (component->driver->resume)
374 		component->driver->resume(component);
375 	component->suspended = 0;
376 }
377 
snd_soc_component_is_suspended(struct snd_soc_component * component)378 int snd_soc_component_is_suspended(struct snd_soc_component *component)
379 {
380 	return component->suspended;
381 }
382 
snd_soc_component_probe(struct snd_soc_component * component)383 int snd_soc_component_probe(struct snd_soc_component *component)
384 {
385 	int ret = 0;
386 
387 	if (component->driver->probe)
388 		ret = component->driver->probe(component);
389 
390 	return soc_component_ret(component, ret);
391 }
392 
snd_soc_component_remove(struct snd_soc_component * component)393 void snd_soc_component_remove(struct snd_soc_component *component)
394 {
395 	if (component->driver->remove)
396 		component->driver->remove(component);
397 }
398 
snd_soc_component_of_xlate_dai_id(struct snd_soc_component * component,struct device_node * ep)399 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
400 				      struct device_node *ep)
401 {
402 	int ret = -ENOTSUPP;
403 
404 	if (component->driver->of_xlate_dai_id)
405 		ret = component->driver->of_xlate_dai_id(component, ep);
406 
407 	return soc_component_ret(component, ret);
408 }
409 
snd_soc_component_of_xlate_dai_name(struct snd_soc_component * component,const struct of_phandle_args * args,const char ** dai_name)410 int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
411 					const struct of_phandle_args *args,
412 					const char **dai_name)
413 {
414 	if (component->driver->of_xlate_dai_name)
415 		return component->driver->of_xlate_dai_name(component,
416 							    args, dai_name);
417 	/*
418 	 * Don't use soc_component_ret here because we may not want to report
419 	 * the error just yet. If a device has more than one component, the
420 	 * first may not match and we don't want spam the log with this.
421 	 */
422 	return -ENOTSUPP;
423 }
424 
snd_soc_component_setup_regmap(struct snd_soc_component * component)425 void snd_soc_component_setup_regmap(struct snd_soc_component *component)
426 {
427 	int val_bytes = regmap_get_val_bytes(component->regmap);
428 
429 	/* Errors are legitimate for non-integer byte multiples */
430 	if (val_bytes > 0)
431 		component->val_bytes = val_bytes;
432 }
433 
434 #ifdef CONFIG_REGMAP
435 
436 /**
437  * snd_soc_component_init_regmap() - Initialize regmap instance for the
438  *                                   component
439  * @component: The component for which to initialize the regmap instance
440  * @regmap: The regmap instance that should be used by the component
441  *
442  * This function allows deferred assignment of the regmap instance that is
443  * associated with the component. Only use this if the regmap instance is not
444  * yet ready when the component is registered. The function must also be called
445  * before the first IO attempt of the component.
446  */
snd_soc_component_init_regmap(struct snd_soc_component * component,struct regmap * regmap)447 void snd_soc_component_init_regmap(struct snd_soc_component *component,
448 				   struct regmap *regmap)
449 {
450 	component->regmap = regmap;
451 	snd_soc_component_setup_regmap(component);
452 }
453 EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
454 
455 /**
456  * snd_soc_component_exit_regmap() - De-initialize regmap instance for the
457  *                                   component
458  * @component: The component for which to de-initialize the regmap instance
459  *
460  * Calls regmap_exit() on the regmap instance associated to the component and
461  * removes the regmap instance from the component.
462  *
463  * This function should only be used if snd_soc_component_init_regmap() was used
464  * to initialize the regmap instance.
465  */
snd_soc_component_exit_regmap(struct snd_soc_component * component)466 void snd_soc_component_exit_regmap(struct snd_soc_component *component)
467 {
468 	regmap_exit(component->regmap);
469 	component->regmap = NULL;
470 }
471 EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
472 
473 #endif
474 
snd_soc_component_compr_open(struct snd_soc_component * component,struct snd_compr_stream * cstream)475 int snd_soc_component_compr_open(struct snd_soc_component *component,
476 				 struct snd_compr_stream *cstream)
477 {
478 	int ret = 0;
479 
480 	if (component->driver->compress_ops &&
481 	    component->driver->compress_ops->open)
482 		ret = component->driver->compress_ops->open(component, cstream);
483 
484 	/* mark substream if succeeded */
485 	if (ret == 0)
486 		soc_component_mark_push(component, cstream, compr_open);
487 
488 	return soc_component_ret(component, ret);
489 }
490 EXPORT_SYMBOL_GPL(snd_soc_component_compr_open);
491 
snd_soc_component_compr_free(struct snd_soc_component * component,struct snd_compr_stream * cstream,int rollback)492 void snd_soc_component_compr_free(struct snd_soc_component *component,
493 				  struct snd_compr_stream *cstream,
494 				  int rollback)
495 {
496 	if (rollback && !soc_component_mark_match(component, cstream, compr_open))
497 		return;
498 
499 	if (component->driver->compress_ops &&
500 	    component->driver->compress_ops->free)
501 		component->driver->compress_ops->free(component, cstream);
502 
503 	/* remove marked substream */
504 	soc_component_mark_pop(component, cstream, compr_open);
505 }
506 EXPORT_SYMBOL_GPL(snd_soc_component_compr_free);
507 
snd_soc_component_compr_trigger(struct snd_compr_stream * cstream,int cmd)508 int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd)
509 {
510 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
511 	struct snd_soc_component *component;
512 	int i, ret;
513 
514 	for_each_rtd_components(rtd, i, component) {
515 		if (component->driver->compress_ops &&
516 		    component->driver->compress_ops->trigger) {
517 			ret = component->driver->compress_ops->trigger(
518 				component, cstream, cmd);
519 			if (ret < 0)
520 				return soc_component_ret(component, ret);
521 		}
522 	}
523 
524 	return 0;
525 }
526 EXPORT_SYMBOL_GPL(snd_soc_component_compr_trigger);
527 
snd_soc_component_compr_set_params(struct snd_compr_stream * cstream,struct snd_compr_params * params)528 int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
529 				       struct snd_compr_params *params)
530 {
531 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
532 	struct snd_soc_component *component;
533 	int i, ret;
534 
535 	for_each_rtd_components(rtd, i, component) {
536 		if (component->driver->compress_ops &&
537 		    component->driver->compress_ops->set_params) {
538 			ret = component->driver->compress_ops->set_params(
539 				component, cstream, params);
540 			if (ret < 0)
541 				return soc_component_ret(component, ret);
542 		}
543 	}
544 
545 	return 0;
546 }
547 EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_params);
548 
snd_soc_component_compr_get_params(struct snd_compr_stream * cstream,struct snd_codec * params)549 int snd_soc_component_compr_get_params(struct snd_compr_stream *cstream,
550 				       struct snd_codec *params)
551 {
552 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
553 	struct snd_soc_component *component;
554 	int i, ret;
555 
556 	for_each_rtd_components(rtd, i, component) {
557 		if (component->driver->compress_ops &&
558 		    component->driver->compress_ops->get_params) {
559 			ret = component->driver->compress_ops->get_params(
560 				component, cstream, params);
561 			return soc_component_ret(component, ret);
562 		}
563 	}
564 
565 	return 0;
566 }
567 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_params);
568 
snd_soc_component_compr_get_caps(struct snd_compr_stream * cstream,struct snd_compr_caps * caps)569 int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream,
570 				     struct snd_compr_caps *caps)
571 {
572 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
573 	struct snd_soc_component *component;
574 	int i, ret = 0;
575 
576 	snd_soc_dpcm_mutex_lock(rtd);
577 
578 	for_each_rtd_components(rtd, i, component) {
579 		if (component->driver->compress_ops &&
580 		    component->driver->compress_ops->get_caps) {
581 			ret = component->driver->compress_ops->get_caps(
582 				component, cstream, caps);
583 			break;
584 		}
585 	}
586 
587 	snd_soc_dpcm_mutex_unlock(rtd);
588 
589 	return soc_component_ret(component, ret);
590 }
591 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_caps);
592 
snd_soc_component_compr_get_codec_caps(struct snd_compr_stream * cstream,struct snd_compr_codec_caps * codec)593 int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
594 					   struct snd_compr_codec_caps *codec)
595 {
596 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
597 	struct snd_soc_component *component;
598 	int i, ret = 0;
599 
600 	snd_soc_dpcm_mutex_lock(rtd);
601 
602 	for_each_rtd_components(rtd, i, component) {
603 		if (component->driver->compress_ops &&
604 		    component->driver->compress_ops->get_codec_caps) {
605 			ret = component->driver->compress_ops->get_codec_caps(
606 				component, cstream, codec);
607 			break;
608 		}
609 	}
610 
611 	snd_soc_dpcm_mutex_unlock(rtd);
612 
613 	return soc_component_ret(component, ret);
614 }
615 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_codec_caps);
616 
snd_soc_component_compr_ack(struct snd_compr_stream * cstream,size_t bytes)617 int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
618 {
619 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
620 	struct snd_soc_component *component;
621 	int i, ret;
622 
623 	for_each_rtd_components(rtd, i, component) {
624 		if (component->driver->compress_ops &&
625 		    component->driver->compress_ops->ack) {
626 			ret = component->driver->compress_ops->ack(
627 				component, cstream, bytes);
628 			if (ret < 0)
629 				return soc_component_ret(component, ret);
630 		}
631 	}
632 
633 	return 0;
634 }
635 EXPORT_SYMBOL_GPL(snd_soc_component_compr_ack);
636 
snd_soc_component_compr_pointer(struct snd_compr_stream * cstream,struct snd_compr_tstamp * tstamp)637 int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
638 				    struct snd_compr_tstamp *tstamp)
639 {
640 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
641 	struct snd_soc_component *component;
642 	int i, ret;
643 
644 	for_each_rtd_components(rtd, i, component) {
645 		if (component->driver->compress_ops &&
646 		    component->driver->compress_ops->pointer) {
647 			ret = component->driver->compress_ops->pointer(
648 				component, cstream, tstamp);
649 			return soc_component_ret(component, ret);
650 		}
651 	}
652 
653 	return 0;
654 }
655 EXPORT_SYMBOL_GPL(snd_soc_component_compr_pointer);
656 
snd_soc_component_compr_copy(struct snd_compr_stream * cstream,char __user * buf,size_t count)657 int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
658 				 char __user *buf, size_t count)
659 {
660 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
661 	struct snd_soc_component *component;
662 	int i, ret = 0;
663 
664 	snd_soc_dpcm_mutex_lock(rtd);
665 
666 	for_each_rtd_components(rtd, i, component) {
667 		if (component->driver->compress_ops &&
668 		    component->driver->compress_ops->copy) {
669 			ret = component->driver->compress_ops->copy(
670 				component, cstream, buf, count);
671 			break;
672 		}
673 	}
674 
675 	snd_soc_dpcm_mutex_unlock(rtd);
676 
677 	return soc_component_ret(component, ret);
678 }
679 EXPORT_SYMBOL_GPL(snd_soc_component_compr_copy);
680 
snd_soc_component_compr_set_metadata(struct snd_compr_stream * cstream,struct snd_compr_metadata * metadata)681 int snd_soc_component_compr_set_metadata(struct snd_compr_stream *cstream,
682 					 struct snd_compr_metadata *metadata)
683 {
684 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
685 	struct snd_soc_component *component;
686 	int i, ret;
687 
688 	for_each_rtd_components(rtd, i, component) {
689 		if (component->driver->compress_ops &&
690 		    component->driver->compress_ops->set_metadata) {
691 			ret = component->driver->compress_ops->set_metadata(
692 				component, cstream, metadata);
693 			if (ret < 0)
694 				return soc_component_ret(component, ret);
695 		}
696 	}
697 
698 	return 0;
699 }
700 EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_metadata);
701 
snd_soc_component_compr_get_metadata(struct snd_compr_stream * cstream,struct snd_compr_metadata * metadata)702 int snd_soc_component_compr_get_metadata(struct snd_compr_stream *cstream,
703 					 struct snd_compr_metadata *metadata)
704 {
705 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
706 	struct snd_soc_component *component;
707 	int i, ret;
708 
709 	for_each_rtd_components(rtd, i, component) {
710 		if (component->driver->compress_ops &&
711 		    component->driver->compress_ops->get_metadata) {
712 			ret = component->driver->compress_ops->get_metadata(
713 				component, cstream, metadata);
714 			return soc_component_ret(component, ret);
715 		}
716 	}
717 
718 	return 0;
719 }
720 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_metadata);
721 
soc_component_read_no_lock(struct snd_soc_component * component,unsigned int reg)722 static unsigned int soc_component_read_no_lock(
723 	struct snd_soc_component *component,
724 	unsigned int reg)
725 {
726 	int ret;
727 	unsigned int val = 0;
728 
729 	if (component->regmap)
730 		ret = regmap_read(component->regmap, reg, &val);
731 	else if (component->driver->read) {
732 		ret = 0;
733 		val = component->driver->read(component, reg);
734 	}
735 	else
736 		ret = -EIO;
737 
738 	if (ret < 0)
739 		return soc_component_ret_reg_rw(component, ret, reg);
740 
741 	return val;
742 }
743 
744 /**
745  * snd_soc_component_read() - Read register value
746  * @component: Component to read from
747  * @reg: Register to read
748  *
749  * Return: read value
750  */
snd_soc_component_read(struct snd_soc_component * component,unsigned int reg)751 unsigned int snd_soc_component_read(struct snd_soc_component *component,
752 				    unsigned int reg)
753 {
754 	unsigned int val;
755 
756 	mutex_lock(&component->io_mutex);
757 	val = soc_component_read_no_lock(component, reg);
758 	mutex_unlock(&component->io_mutex);
759 
760 	return val;
761 }
762 EXPORT_SYMBOL_GPL(snd_soc_component_read);
763 
soc_component_write_no_lock(struct snd_soc_component * component,unsigned int reg,unsigned int val)764 static int soc_component_write_no_lock(
765 	struct snd_soc_component *component,
766 	unsigned int reg, unsigned int val)
767 {
768 	int ret = -EIO;
769 
770 	if (component->regmap)
771 		ret = regmap_write(component->regmap, reg, val);
772 	else if (component->driver->write)
773 		ret = component->driver->write(component, reg, val);
774 
775 	return soc_component_ret_reg_rw(component, ret, reg);
776 }
777 
778 /**
779  * snd_soc_component_write() - Write register value
780  * @component: Component to write to
781  * @reg: Register to write
782  * @val: Value to write to the register
783  *
784  * Return: 0 on success, a negative error code otherwise.
785  */
snd_soc_component_write(struct snd_soc_component * component,unsigned int reg,unsigned int val)786 int snd_soc_component_write(struct snd_soc_component *component,
787 			    unsigned int reg, unsigned int val)
788 {
789 	int ret;
790 
791 	mutex_lock(&component->io_mutex);
792 	ret = soc_component_write_no_lock(component, reg, val);
793 	mutex_unlock(&component->io_mutex);
794 
795 	return ret;
796 }
797 EXPORT_SYMBOL_GPL(snd_soc_component_write);
798 
snd_soc_component_update_bits_legacy(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val,bool * change)799 static int snd_soc_component_update_bits_legacy(
800 	struct snd_soc_component *component, unsigned int reg,
801 	unsigned int mask, unsigned int val, bool *change)
802 {
803 	unsigned int old, new;
804 	int ret = 0;
805 
806 	mutex_lock(&component->io_mutex);
807 
808 	old = soc_component_read_no_lock(component, reg);
809 
810 	new = (old & ~mask) | (val & mask);
811 	*change = old != new;
812 	if (*change)
813 		ret = soc_component_write_no_lock(component, reg, new);
814 
815 	mutex_unlock(&component->io_mutex);
816 
817 	return soc_component_ret_reg_rw(component, ret, reg);
818 }
819 
820 /**
821  * snd_soc_component_update_bits() - Perform read/modify/write cycle
822  * @component: Component to update
823  * @reg: Register to update
824  * @mask: Mask that specifies which bits to update
825  * @val: New value for the bits specified by mask
826  *
827  * Return: 1 if the operation was successful and the value of the register
828  * changed, 0 if the operation was successful, but the value did not change.
829  * Returns a negative error code otherwise.
830  */
snd_soc_component_update_bits(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val)831 int snd_soc_component_update_bits(struct snd_soc_component *component,
832 				  unsigned int reg, unsigned int mask, unsigned int val)
833 {
834 	bool change;
835 	int ret;
836 
837 	if (component->regmap)
838 		ret = regmap_update_bits_check(component->regmap, reg, mask,
839 					       val, &change);
840 	else
841 		ret = snd_soc_component_update_bits_legacy(component, reg,
842 							   mask, val, &change);
843 
844 	if (ret < 0)
845 		return soc_component_ret_reg_rw(component, ret, reg);
846 	return change;
847 }
848 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
849 
850 /**
851  * snd_soc_component_update_bits_async() - Perform asynchronous
852  *  read/modify/write cycle
853  * @component: Component to update
854  * @reg: Register to update
855  * @mask: Mask that specifies which bits to update
856  * @val: New value for the bits specified by mask
857  *
858  * This function is similar to snd_soc_component_update_bits(), but the update
859  * operation is scheduled asynchronously. This means it may not be completed
860  * when the function returns. To make sure that all scheduled updates have been
861  * completed snd_soc_component_async_complete() must be called.
862  *
863  * Return: 1 if the operation was successful and the value of the register
864  * changed, 0 if the operation was successful, but the value did not change.
865  * Returns a negative error code otherwise.
866  */
snd_soc_component_update_bits_async(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val)867 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
868 					unsigned int reg, unsigned int mask, unsigned int val)
869 {
870 	bool change;
871 	int ret;
872 
873 	if (component->regmap)
874 		ret = regmap_update_bits_check_async(component->regmap, reg,
875 						     mask, val, &change);
876 	else
877 		ret = snd_soc_component_update_bits_legacy(component, reg,
878 							   mask, val, &change);
879 
880 	if (ret < 0)
881 		return soc_component_ret_reg_rw(component, ret, reg);
882 	return change;
883 }
884 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
885 
886 /**
887  * snd_soc_component_read_field() - Read register field value
888  * @component: Component to read from
889  * @reg: Register to read
890  * @mask: mask of the register field
891  *
892  * Return: read value of register field.
893  */
snd_soc_component_read_field(struct snd_soc_component * component,unsigned int reg,unsigned int mask)894 unsigned int snd_soc_component_read_field(struct snd_soc_component *component,
895 					  unsigned int reg, unsigned int mask)
896 {
897 	unsigned int val;
898 
899 	val = snd_soc_component_read(component, reg);
900 
901 	val = (val & mask) >> soc_component_field_shift(component, mask);
902 
903 	return val;
904 }
905 EXPORT_SYMBOL_GPL(snd_soc_component_read_field);
906 
907 /**
908  * snd_soc_component_write_field() - write to register field
909  * @component: Component to write to
910  * @reg: Register to write
911  * @mask: mask of the register field to update
912  * @val: value of the field to write
913  *
914  * Return: 1 for change, otherwise 0.
915  */
snd_soc_component_write_field(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val)916 int snd_soc_component_write_field(struct snd_soc_component *component,
917 				  unsigned int reg, unsigned int mask,
918 				  unsigned int val)
919 {
920 
921 	val = (val << soc_component_field_shift(component, mask)) & mask;
922 
923 	return snd_soc_component_update_bits(component, reg, mask, val);
924 }
925 EXPORT_SYMBOL_GPL(snd_soc_component_write_field);
926 
927 /**
928  * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
929  * @component: Component for which to wait
930  *
931  * This function blocks until all asynchronous I/O which has previously been
932  * scheduled using snd_soc_component_update_bits_async() has completed.
933  */
snd_soc_component_async_complete(struct snd_soc_component * component)934 void snd_soc_component_async_complete(struct snd_soc_component *component)
935 {
936 	if (component->regmap)
937 		regmap_async_complete(component->regmap);
938 }
939 EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
940 
941 /**
942  * snd_soc_component_test_bits - Test register for change
943  * @component: component
944  * @reg: Register to test
945  * @mask: Mask that specifies which bits to test
946  * @value: Value to test against
947  *
948  * Tests a register with a new value and checks if the new value is
949  * different from the old value.
950  *
951  * Return: 1 for change, otherwise 0.
952  */
snd_soc_component_test_bits(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int value)953 int snd_soc_component_test_bits(struct snd_soc_component *component,
954 				unsigned int reg, unsigned int mask, unsigned int value)
955 {
956 	unsigned int old, new;
957 
958 	old = snd_soc_component_read(component, reg);
959 	new = (old & ~mask) | value;
960 	return old != new;
961 }
962 EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
963 
snd_soc_pcm_component_pointer(struct snd_pcm_substream * substream)964 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
965 {
966 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
967 	struct snd_soc_component *component;
968 	int i;
969 
970 	/* FIXME: use 1st pointer */
971 	for_each_rtd_components(rtd, i, component)
972 		if (component->driver->pointer)
973 			return component->driver->pointer(component, substream);
974 
975 	return 0;
976 }
977 
snd_soc_component_is_codec_on_rtd(struct snd_soc_pcm_runtime * rtd,struct snd_soc_component * component)978 static bool snd_soc_component_is_codec_on_rtd(struct snd_soc_pcm_runtime *rtd,
979 					      struct snd_soc_component *component)
980 {
981 	struct snd_soc_dai *dai;
982 	int i;
983 
984 	for_each_rtd_codec_dais(rtd, i, dai) {
985 		if (dai->component == component)
986 			return true;
987 	}
988 
989 	return false;
990 }
991 
snd_soc_pcm_component_delay(struct snd_pcm_substream * substream,snd_pcm_sframes_t * cpu_delay,snd_pcm_sframes_t * codec_delay)992 void snd_soc_pcm_component_delay(struct snd_pcm_substream *substream,
993 				 snd_pcm_sframes_t *cpu_delay,
994 				 snd_pcm_sframes_t *codec_delay)
995 {
996 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
997 	struct snd_soc_component *component;
998 	snd_pcm_sframes_t delay;
999 	int i;
1000 
1001 	/*
1002 	 * We're looking for the delay through the full audio path so it needs to
1003 	 * be the maximum of the Components doing transmit and the maximum of the
1004 	 * Components doing receive (ie, all CPUs and all CODECs) rather than
1005 	 * just the maximum of all Components.
1006 	 */
1007 	for_each_rtd_components(rtd, i, component) {
1008 		if (!component->driver->delay)
1009 			continue;
1010 
1011 		delay = component->driver->delay(component, substream);
1012 
1013 		if (snd_soc_component_is_codec_on_rtd(rtd, component))
1014 			*codec_delay = max(*codec_delay, delay);
1015 		else
1016 			*cpu_delay = max(*cpu_delay, delay);
1017 	}
1018 }
1019 
snd_soc_pcm_component_ioctl(struct snd_pcm_substream * substream,unsigned int cmd,void * arg)1020 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
1021 				unsigned int cmd, void *arg)
1022 {
1023 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1024 	struct snd_soc_component *component;
1025 	int i;
1026 
1027 	/* FIXME: use 1st ioctl */
1028 	for_each_rtd_components(rtd, i, component)
1029 		if (component->driver->ioctl)
1030 			return soc_component_ret(
1031 				component,
1032 				component->driver->ioctl(component,
1033 							 substream, cmd, arg));
1034 
1035 	return snd_pcm_lib_ioctl(substream, cmd, arg);
1036 }
1037 
snd_soc_pcm_component_sync_stop(struct snd_pcm_substream * substream)1038 int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
1039 {
1040 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1041 	struct snd_soc_component *component;
1042 	int i, ret;
1043 
1044 	for_each_rtd_components(rtd, i, component) {
1045 		if (component->driver->sync_stop) {
1046 			ret = component->driver->sync_stop(component,
1047 							   substream);
1048 			if (ret < 0)
1049 				return soc_component_ret(component, ret);
1050 		}
1051 	}
1052 
1053 	return 0;
1054 }
1055 
snd_soc_pcm_component_copy(struct snd_pcm_substream * substream,int channel,unsigned long pos,struct iov_iter * iter,unsigned long bytes)1056 int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
1057 			       int channel, unsigned long pos,
1058 			       struct iov_iter *iter, unsigned long bytes)
1059 {
1060 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1061 	struct snd_soc_component *component;
1062 	int i;
1063 
1064 	/* FIXME. it returns 1st copy now */
1065 	for_each_rtd_components(rtd, i, component)
1066 		if (component->driver->copy)
1067 			return soc_component_ret(component,
1068 				component->driver->copy(component, substream,
1069 					channel, pos, iter, bytes));
1070 
1071 	return -EINVAL;
1072 }
1073 
snd_soc_pcm_component_page(struct snd_pcm_substream * substream,unsigned long offset)1074 struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
1075 					unsigned long offset)
1076 {
1077 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1078 	struct snd_soc_component *component;
1079 	struct page *page;
1080 	int i;
1081 
1082 	/* FIXME. it returns 1st page now */
1083 	for_each_rtd_components(rtd, i, component) {
1084 		if (component->driver->page) {
1085 			page = component->driver->page(component,
1086 						       substream, offset);
1087 			if (page)
1088 				return page;
1089 		}
1090 	}
1091 
1092 	return NULL;
1093 }
1094 
snd_soc_pcm_component_mmap(struct snd_pcm_substream * substream,struct vm_area_struct * vma)1095 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
1096 			       struct vm_area_struct *vma)
1097 {
1098 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1099 	struct snd_soc_component *component;
1100 	int i;
1101 
1102 	/* FIXME. it returns 1st mmap now */
1103 	for_each_rtd_components(rtd, i, component)
1104 		if (component->driver->mmap)
1105 			return soc_component_ret(
1106 				component,
1107 				component->driver->mmap(component,
1108 							substream, vma));
1109 
1110 	return -EINVAL;
1111 }
1112 
snd_soc_pcm_component_new(struct snd_soc_pcm_runtime * rtd)1113 int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
1114 {
1115 	struct snd_soc_component *component;
1116 	int ret;
1117 	int i;
1118 
1119 	for_each_rtd_components(rtd, i, component) {
1120 		if (component->driver->pcm_construct) {
1121 			ret = component->driver->pcm_construct(component, rtd);
1122 			if (ret < 0)
1123 				return soc_component_ret(component, ret);
1124 		}
1125 	}
1126 
1127 	return 0;
1128 }
1129 
snd_soc_pcm_component_free(struct snd_soc_pcm_runtime * rtd)1130 void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
1131 {
1132 	struct snd_soc_component *component;
1133 	int i;
1134 
1135 	if (!rtd->pcm)
1136 		return;
1137 
1138 	for_each_rtd_components(rtd, i, component)
1139 		if (component->driver->pcm_destruct)
1140 			component->driver->pcm_destruct(component, rtd->pcm);
1141 }
1142 
snd_soc_pcm_component_prepare(struct snd_pcm_substream * substream)1143 int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
1144 {
1145 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1146 	struct snd_soc_component *component;
1147 	int i, ret;
1148 
1149 	for_each_rtd_components(rtd, i, component) {
1150 		if (component->driver->prepare) {
1151 			ret = component->driver->prepare(component, substream);
1152 			if (ret < 0)
1153 				return soc_component_ret(component, ret);
1154 		}
1155 	}
1156 
1157 	return 0;
1158 }
1159 
snd_soc_pcm_component_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)1160 int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
1161 				    struct snd_pcm_hw_params *params)
1162 {
1163 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1164 	struct snd_soc_component *component;
1165 	int i, ret;
1166 
1167 	for_each_rtd_components(rtd, i, component) {
1168 		if (component->driver->hw_params) {
1169 			ret = component->driver->hw_params(component,
1170 							   substream, params);
1171 			if (ret < 0)
1172 				return soc_component_ret(component, ret);
1173 		}
1174 		/* mark substream if succeeded */
1175 		soc_component_mark_push(component, substream, hw_params);
1176 	}
1177 
1178 	return 0;
1179 }
1180 
snd_soc_pcm_component_hw_free(struct snd_pcm_substream * substream,int rollback)1181 void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
1182 				   int rollback)
1183 {
1184 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1185 	struct snd_soc_component *component;
1186 	int i, ret;
1187 
1188 	for_each_rtd_components(rtd, i, component) {
1189 		if (rollback && !soc_component_mark_match(component, substream, hw_params))
1190 			continue;
1191 
1192 		if (component->driver->hw_free) {
1193 			ret = component->driver->hw_free(component, substream);
1194 			if (ret < 0)
1195 				soc_component_ret(component, ret);
1196 		}
1197 
1198 		/* remove marked substream */
1199 		soc_component_mark_pop(component, substream, hw_params);
1200 	}
1201 }
1202 
soc_component_trigger(struct snd_soc_component * component,struct snd_pcm_substream * substream,int cmd)1203 static int soc_component_trigger(struct snd_soc_component *component,
1204 				 struct snd_pcm_substream *substream,
1205 				 int cmd)
1206 {
1207 	int ret = 0;
1208 
1209 	if (component->driver->trigger)
1210 		ret = component->driver->trigger(component, substream, cmd);
1211 
1212 	return soc_component_ret(component, ret);
1213 }
1214 
snd_soc_pcm_component_trigger(struct snd_pcm_substream * substream,int cmd,int rollback)1215 int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
1216 				  int cmd, int rollback)
1217 {
1218 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1219 	struct snd_soc_component *component;
1220 	int i, r, ret = 0;
1221 
1222 	switch (cmd) {
1223 	case SNDRV_PCM_TRIGGER_START:
1224 	case SNDRV_PCM_TRIGGER_RESUME:
1225 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1226 		for_each_rtd_components(rtd, i, component) {
1227 			ret = soc_component_trigger(component, substream, cmd);
1228 			if (ret < 0)
1229 				break;
1230 			soc_component_mark_push(component, substream, trigger);
1231 		}
1232 		break;
1233 	case SNDRV_PCM_TRIGGER_STOP:
1234 	case SNDRV_PCM_TRIGGER_SUSPEND:
1235 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1236 		for_each_rtd_components(rtd, i, component) {
1237 			if (rollback && !soc_component_mark_match(component, substream, trigger))
1238 				continue;
1239 
1240 			r = soc_component_trigger(component, substream, cmd);
1241 			if (r < 0)
1242 				ret = r; /* use last ret */
1243 			soc_component_mark_pop(component, substream, trigger);
1244 		}
1245 	}
1246 
1247 	return ret;
1248 }
1249 
snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime * rtd,void * stream)1250 int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
1251 					 void *stream)
1252 {
1253 	struct snd_soc_component *component;
1254 	int i;
1255 
1256 	for_each_rtd_components(rtd, i, component) {
1257 		int ret = pm_runtime_get_sync(component->dev);
1258 		if (ret < 0 && ret != -EACCES) {
1259 			pm_runtime_put_noidle(component->dev);
1260 			return soc_component_ret(component, ret);
1261 		}
1262 		/* mark stream if succeeded */
1263 		soc_component_mark_push(component, stream, pm);
1264 	}
1265 
1266 	return 0;
1267 }
1268 
snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime * rtd,void * stream,int rollback)1269 void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
1270 					  void *stream, int rollback)
1271 {
1272 	struct snd_soc_component *component;
1273 	int i;
1274 
1275 	for_each_rtd_components(rtd, i, component) {
1276 		if (rollback && !soc_component_mark_match(component, stream, pm))
1277 			continue;
1278 
1279 		pm_runtime_mark_last_busy(component->dev);
1280 		pm_runtime_put_autosuspend(component->dev);
1281 
1282 		/* remove marked stream */
1283 		soc_component_mark_pop(component, stream, pm);
1284 	}
1285 }
1286 
snd_soc_pcm_component_ack(struct snd_pcm_substream * substream)1287 int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream)
1288 {
1289 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1290 	struct snd_soc_component *component;
1291 	int i;
1292 
1293 	/* FIXME: use 1st pointer */
1294 	for_each_rtd_components(rtd, i, component)
1295 		if (component->driver->ack)
1296 			return component->driver->ack(component, substream);
1297 
1298 	return 0;
1299 }
1300