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
15 #define soc_component_ret(dai, ret) _soc_component_ret(dai, __func__, ret)
_soc_component_ret(struct snd_soc_component * component,const char * func,int ret)16 static inline int _soc_component_ret(struct snd_soc_component *component,
17 const char *func, int ret)
18 {
19 /* Positive/Zero values are not errors */
20 if (ret >= 0)
21 return ret;
22
23 /* Negative values might be errors */
24 switch (ret) {
25 case -EPROBE_DEFER:
26 case -ENOTSUPP:
27 break;
28 default:
29 dev_err(component->dev,
30 "ASoC: error at %s on %s: %d\n",
31 func, component->name, ret);
32 }
33
34 return ret;
35 }
36
37 /*
38 * We might want to check substream by using list.
39 * In such case, we can update these macros.
40 */
41 #define soc_component_mark_push(component, substream, tgt) ((component)->mark_##tgt = substream)
42 #define soc_component_mark_pop(component, substream, tgt) ((component)->mark_##tgt = NULL)
43 #define soc_component_mark_match(component, substream, tgt) ((component)->mark_##tgt == substream)
44
snd_soc_component_set_aux(struct snd_soc_component * component,struct snd_soc_aux_dev * aux)45 void snd_soc_component_set_aux(struct snd_soc_component *component,
46 struct snd_soc_aux_dev *aux)
47 {
48 component->init = (aux) ? aux->init : NULL;
49 }
50
snd_soc_component_init(struct snd_soc_component * component)51 int snd_soc_component_init(struct snd_soc_component *component)
52 {
53 int ret = 0;
54
55 if (component->init)
56 ret = component->init(component);
57
58 return soc_component_ret(component, ret);
59 }
60
61 /**
62 * snd_soc_component_set_sysclk - configure COMPONENT system or master clock.
63 * @component: COMPONENT
64 * @clk_id: DAI specific clock ID
65 * @source: Source for the clock
66 * @freq: new clock frequency in Hz
67 * @dir: new clock direction - input/output.
68 *
69 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
70 */
snd_soc_component_set_sysclk(struct snd_soc_component * component,int clk_id,int source,unsigned int freq,int dir)71 int snd_soc_component_set_sysclk(struct snd_soc_component *component,
72 int clk_id, int source, unsigned int freq,
73 int dir)
74 {
75 int ret = -ENOTSUPP;
76
77 if (component->driver->set_sysclk)
78 ret = component->driver->set_sysclk(component, clk_id, source,
79 freq, dir);
80
81 return soc_component_ret(component, ret);
82 }
83 EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk);
84
85 /*
86 * snd_soc_component_set_pll - configure component PLL.
87 * @component: COMPONENT
88 * @pll_id: DAI specific PLL ID
89 * @source: DAI specific source for the PLL
90 * @freq_in: PLL input clock frequency in Hz
91 * @freq_out: requested PLL output clock frequency in Hz
92 *
93 * Configures and enables PLL to generate output clock based on input clock.
94 */
snd_soc_component_set_pll(struct snd_soc_component * component,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)95 int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
96 int source, unsigned int freq_in,
97 unsigned int freq_out)
98 {
99 int ret = -EINVAL;
100
101 if (component->driver->set_pll)
102 ret = component->driver->set_pll(component, pll_id, source,
103 freq_in, freq_out);
104
105 return soc_component_ret(component, ret);
106 }
107 EXPORT_SYMBOL_GPL(snd_soc_component_set_pll);
108
snd_soc_component_seq_notifier(struct snd_soc_component * component,enum snd_soc_dapm_type type,int subseq)109 void snd_soc_component_seq_notifier(struct snd_soc_component *component,
110 enum snd_soc_dapm_type type, int subseq)
111 {
112 if (component->driver->seq_notifier)
113 component->driver->seq_notifier(component, type, subseq);
114 }
115
snd_soc_component_stream_event(struct snd_soc_component * component,int event)116 int snd_soc_component_stream_event(struct snd_soc_component *component,
117 int event)
118 {
119 int ret = 0;
120
121 if (component->driver->stream_event)
122 ret = component->driver->stream_event(component, event);
123
124 return soc_component_ret(component, ret);
125 }
126
snd_soc_component_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)127 int snd_soc_component_set_bias_level(struct snd_soc_component *component,
128 enum snd_soc_bias_level level)
129 {
130 int ret = 0;
131
132 if (component->driver->set_bias_level)
133 ret = component->driver->set_bias_level(component, level);
134
135 return soc_component_ret(component, ret);
136 }
137
snd_soc_component_enable_pin(struct snd_soc_component * component,const char * pin)138 int snd_soc_component_enable_pin(struct snd_soc_component *component,
139 const char *pin)
140 {
141 struct snd_soc_dapm_context *dapm =
142 snd_soc_component_get_dapm(component);
143 return snd_soc_dapm_enable_pin(dapm, pin);
144 }
145 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
146
snd_soc_component_enable_pin_unlocked(struct snd_soc_component * component,const char * pin)147 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
148 const char *pin)
149 {
150 struct snd_soc_dapm_context *dapm =
151 snd_soc_component_get_dapm(component);
152 return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
153 }
154 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
155
snd_soc_component_disable_pin(struct snd_soc_component * component,const char * pin)156 int snd_soc_component_disable_pin(struct snd_soc_component *component,
157 const char *pin)
158 {
159 struct snd_soc_dapm_context *dapm =
160 snd_soc_component_get_dapm(component);
161 return snd_soc_dapm_disable_pin(dapm, pin);
162 }
163 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
164
snd_soc_component_disable_pin_unlocked(struct snd_soc_component * component,const char * pin)165 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
166 const char *pin)
167 {
168 struct snd_soc_dapm_context *dapm =
169 snd_soc_component_get_dapm(component);
170 return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
171 }
172 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
173
snd_soc_component_nc_pin(struct snd_soc_component * component,const char * pin)174 int snd_soc_component_nc_pin(struct snd_soc_component *component,
175 const char *pin)
176 {
177 struct snd_soc_dapm_context *dapm =
178 snd_soc_component_get_dapm(component);
179 return snd_soc_dapm_nc_pin(dapm, pin);
180 }
181 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
182
snd_soc_component_nc_pin_unlocked(struct snd_soc_component * component,const char * pin)183 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
184 const char *pin)
185 {
186 struct snd_soc_dapm_context *dapm =
187 snd_soc_component_get_dapm(component);
188 return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
189 }
190 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
191
snd_soc_component_get_pin_status(struct snd_soc_component * component,const char * pin)192 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
193 const char *pin)
194 {
195 struct snd_soc_dapm_context *dapm =
196 snd_soc_component_get_dapm(component);
197 return snd_soc_dapm_get_pin_status(dapm, pin);
198 }
199 EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
200
snd_soc_component_force_enable_pin(struct snd_soc_component * component,const char * pin)201 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
202 const char *pin)
203 {
204 struct snd_soc_dapm_context *dapm =
205 snd_soc_component_get_dapm(component);
206 return snd_soc_dapm_force_enable_pin(dapm, pin);
207 }
208 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
209
snd_soc_component_force_enable_pin_unlocked(struct snd_soc_component * component,const char * pin)210 int snd_soc_component_force_enable_pin_unlocked(
211 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_force_enable_pin_unlocked(dapm, pin);
217 }
218 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
219
220 /**
221 * snd_soc_component_set_jack - configure component jack.
222 * @component: COMPONENTs
223 * @jack: structure to use for the jack
224 * @data: can be used if codec driver need extra data for configuring jack
225 *
226 * Configures and enables jack detection function.
227 */
snd_soc_component_set_jack(struct snd_soc_component * component,struct snd_soc_jack * jack,void * data)228 int snd_soc_component_set_jack(struct snd_soc_component *component,
229 struct snd_soc_jack *jack, void *data)
230 {
231 int ret = -ENOTSUPP;
232
233 if (component->driver->set_jack)
234 ret = component->driver->set_jack(component, jack, data);
235
236 return soc_component_ret(component, ret);
237 }
238 EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
239
snd_soc_component_module_get(struct snd_soc_component * component,struct snd_pcm_substream * substream,int upon_open)240 int snd_soc_component_module_get(struct snd_soc_component *component,
241 struct snd_pcm_substream *substream,
242 int upon_open)
243 {
244 int ret = 0;
245
246 if (component->driver->module_get_upon_open == !!upon_open &&
247 !try_module_get(component->dev->driver->owner))
248 ret = -ENODEV;
249
250 /* mark substream if succeeded */
251 if (ret == 0)
252 soc_component_mark_push(component, substream, module);
253
254 return soc_component_ret(component, ret);
255 }
256
snd_soc_component_module_put(struct snd_soc_component * component,struct snd_pcm_substream * substream,int upon_open,int rollback)257 void snd_soc_component_module_put(struct snd_soc_component *component,
258 struct snd_pcm_substream *substream,
259 int upon_open, int rollback)
260 {
261 if (rollback && !soc_component_mark_match(component, substream, module))
262 return;
263
264 if (component->driver->module_get_upon_open == !!upon_open)
265 module_put(component->dev->driver->owner);
266
267 /* remove marked substream */
268 soc_component_mark_pop(component, substream, module);
269 }
270
snd_soc_component_open(struct snd_soc_component * component,struct snd_pcm_substream * substream)271 int snd_soc_component_open(struct snd_soc_component *component,
272 struct snd_pcm_substream *substream)
273 {
274 int ret = 0;
275
276 if (component->driver->open)
277 ret = component->driver->open(component, substream);
278
279 /* mark substream if succeeded */
280 if (ret == 0)
281 soc_component_mark_push(component, substream, open);
282
283 return soc_component_ret(component, ret);
284 }
285
snd_soc_component_close(struct snd_soc_component * component,struct snd_pcm_substream * substream,int rollback)286 int snd_soc_component_close(struct snd_soc_component *component,
287 struct snd_pcm_substream *substream,
288 int rollback)
289 {
290 int ret = 0;
291
292 if (rollback && !soc_component_mark_match(component, substream, open))
293 return 0;
294
295 if (component->driver->close)
296 ret = component->driver->close(component, substream);
297
298 /* remove marked substream */
299 soc_component_mark_pop(component, substream, open);
300
301 return soc_component_ret(component, ret);
302 }
303
snd_soc_component_suspend(struct snd_soc_component * component)304 void snd_soc_component_suspend(struct snd_soc_component *component)
305 {
306 if (component->driver->suspend)
307 component->driver->suspend(component);
308 component->suspended = 1;
309 }
310
snd_soc_component_resume(struct snd_soc_component * component)311 void snd_soc_component_resume(struct snd_soc_component *component)
312 {
313 if (component->driver->resume)
314 component->driver->resume(component);
315 component->suspended = 0;
316 }
317
snd_soc_component_is_suspended(struct snd_soc_component * component)318 int snd_soc_component_is_suspended(struct snd_soc_component *component)
319 {
320 return component->suspended;
321 }
322
snd_soc_component_probe(struct snd_soc_component * component)323 int snd_soc_component_probe(struct snd_soc_component *component)
324 {
325 int ret = 0;
326
327 if (component->driver->probe)
328 ret = component->driver->probe(component);
329
330 return soc_component_ret(component, ret);
331 }
332
snd_soc_component_remove(struct snd_soc_component * component)333 void snd_soc_component_remove(struct snd_soc_component *component)
334 {
335 if (component->driver->remove)
336 component->driver->remove(component);
337 }
338
snd_soc_component_of_xlate_dai_id(struct snd_soc_component * component,struct device_node * ep)339 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
340 struct device_node *ep)
341 {
342 int ret = -ENOTSUPP;
343
344 if (component->driver->of_xlate_dai_id)
345 ret = component->driver->of_xlate_dai_id(component, ep);
346
347 return soc_component_ret(component, ret);
348 }
349
snd_soc_component_of_xlate_dai_name(struct snd_soc_component * component,struct of_phandle_args * args,const char ** dai_name)350 int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
351 struct of_phandle_args *args,
352 const char **dai_name)
353 {
354 if (component->driver->of_xlate_dai_name)
355 return component->driver->of_xlate_dai_name(component,
356 args, dai_name);
357 /*
358 * Don't use soc_component_ret here because we may not want to report
359 * the error just yet. If a device has more than one component, the
360 * first may not match and we don't want spam the log with this.
361 */
362 return -ENOTSUPP;
363 }
364
snd_soc_component_setup_regmap(struct snd_soc_component * component)365 void snd_soc_component_setup_regmap(struct snd_soc_component *component)
366 {
367 int val_bytes = regmap_get_val_bytes(component->regmap);
368
369 /* Errors are legitimate for non-integer byte multiples */
370 if (val_bytes > 0)
371 component->val_bytes = val_bytes;
372 }
373
374 #ifdef CONFIG_REGMAP
375
376 /**
377 * snd_soc_component_init_regmap() - Initialize regmap instance for the
378 * component
379 * @component: The component for which to initialize the regmap instance
380 * @regmap: The regmap instance that should be used by the component
381 *
382 * This function allows deferred assignment of the regmap instance that is
383 * associated with the component. Only use this if the regmap instance is not
384 * yet ready when the component is registered. The function must also be called
385 * before the first IO attempt of the component.
386 */
snd_soc_component_init_regmap(struct snd_soc_component * component,struct regmap * regmap)387 void snd_soc_component_init_regmap(struct snd_soc_component *component,
388 struct regmap *regmap)
389 {
390 component->regmap = regmap;
391 snd_soc_component_setup_regmap(component);
392 }
393 EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
394
395 /**
396 * snd_soc_component_exit_regmap() - De-initialize regmap instance for the
397 * component
398 * @component: The component for which to de-initialize the regmap instance
399 *
400 * Calls regmap_exit() on the regmap instance associated to the component and
401 * removes the regmap instance from the component.
402 *
403 * This function should only be used if snd_soc_component_init_regmap() was used
404 * to initialize the regmap instance.
405 */
snd_soc_component_exit_regmap(struct snd_soc_component * component)406 void snd_soc_component_exit_regmap(struct snd_soc_component *component)
407 {
408 regmap_exit(component->regmap);
409 component->regmap = NULL;
410 }
411 EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
412
413 #endif
414
soc_component_read_no_lock(struct snd_soc_component * component,unsigned int reg)415 static unsigned int soc_component_read_no_lock(
416 struct snd_soc_component *component,
417 unsigned int reg)
418 {
419 int ret;
420 unsigned int val = 0;
421
422 if (component->regmap)
423 ret = regmap_read(component->regmap, reg, &val);
424 else if (component->driver->read) {
425 ret = 0;
426 val = component->driver->read(component, reg);
427 }
428 else
429 ret = -EIO;
430
431 if (ret < 0)
432 return soc_component_ret(component, ret);
433
434 return val;
435 }
436
437 /**
438 * snd_soc_component_read() - Read register value
439 * @component: Component to read from
440 * @reg: Register to read
441 *
442 * Return: read value
443 */
snd_soc_component_read(struct snd_soc_component * component,unsigned int reg)444 unsigned int snd_soc_component_read(struct snd_soc_component *component,
445 unsigned int reg)
446 {
447 unsigned int val;
448
449 mutex_lock(&component->io_mutex);
450 val = soc_component_read_no_lock(component, reg);
451 mutex_unlock(&component->io_mutex);
452
453 return val;
454 }
455 EXPORT_SYMBOL_GPL(snd_soc_component_read);
456
soc_component_write_no_lock(struct snd_soc_component * component,unsigned int reg,unsigned int val)457 static int soc_component_write_no_lock(
458 struct snd_soc_component *component,
459 unsigned int reg, unsigned int val)
460 {
461 int ret = -EIO;
462
463 if (component->regmap)
464 ret = regmap_write(component->regmap, reg, val);
465 else if (component->driver->write)
466 ret = component->driver->write(component, reg, val);
467
468 return soc_component_ret(component, ret);
469 }
470
471 /**
472 * snd_soc_component_write() - Write register value
473 * @component: Component to write to
474 * @reg: Register to write
475 * @val: Value to write to the register
476 *
477 * Return: 0 on success, a negative error code otherwise.
478 */
snd_soc_component_write(struct snd_soc_component * component,unsigned int reg,unsigned int val)479 int snd_soc_component_write(struct snd_soc_component *component,
480 unsigned int reg, unsigned int val)
481 {
482 int ret;
483
484 mutex_lock(&component->io_mutex);
485 ret = soc_component_write_no_lock(component, reg, val);
486 mutex_unlock(&component->io_mutex);
487
488 return ret;
489 }
490 EXPORT_SYMBOL_GPL(snd_soc_component_write);
491
snd_soc_component_update_bits_legacy(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val,bool * change)492 static int snd_soc_component_update_bits_legacy(
493 struct snd_soc_component *component, unsigned int reg,
494 unsigned int mask, unsigned int val, bool *change)
495 {
496 unsigned int old, new;
497 int ret = 0;
498
499 mutex_lock(&component->io_mutex);
500
501 old = soc_component_read_no_lock(component, reg);
502
503 new = (old & ~mask) | (val & mask);
504 *change = old != new;
505 if (*change)
506 ret = soc_component_write_no_lock(component, reg, new);
507
508 mutex_unlock(&component->io_mutex);
509
510 return soc_component_ret(component, ret);
511 }
512
513 /**
514 * snd_soc_component_update_bits() - Perform read/modify/write cycle
515 * @component: Component to update
516 * @reg: Register to update
517 * @mask: Mask that specifies which bits to update
518 * @val: New value for the bits specified by mask
519 *
520 * Return: 1 if the operation was successful and the value of the register
521 * changed, 0 if the operation was successful, but the value did not change.
522 * Returns a negative error code otherwise.
523 */
snd_soc_component_update_bits(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val)524 int snd_soc_component_update_bits(struct snd_soc_component *component,
525 unsigned int reg, unsigned int mask, unsigned int val)
526 {
527 bool change;
528 int ret;
529
530 if (component->regmap)
531 ret = regmap_update_bits_check(component->regmap, reg, mask,
532 val, &change);
533 else
534 ret = snd_soc_component_update_bits_legacy(component, reg,
535 mask, val, &change);
536
537 if (ret < 0)
538 return soc_component_ret(component, ret);
539 return change;
540 }
541 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
542
543 /**
544 * snd_soc_component_update_bits_async() - Perform asynchronous
545 * read/modify/write cycle
546 * @component: Component to update
547 * @reg: Register to update
548 * @mask: Mask that specifies which bits to update
549 * @val: New value for the bits specified by mask
550 *
551 * This function is similar to snd_soc_component_update_bits(), but the update
552 * operation is scheduled asynchronously. This means it may not be completed
553 * when the function returns. To make sure that all scheduled updates have been
554 * completed snd_soc_component_async_complete() must be called.
555 *
556 * Return: 1 if the operation was successful and the value of the register
557 * changed, 0 if the operation was successful, but the value did not change.
558 * Returns a negative error code otherwise.
559 */
snd_soc_component_update_bits_async(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val)560 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
561 unsigned int reg, unsigned int mask, unsigned int val)
562 {
563 bool change;
564 int ret;
565
566 if (component->regmap)
567 ret = regmap_update_bits_check_async(component->regmap, reg,
568 mask, val, &change);
569 else
570 ret = snd_soc_component_update_bits_legacy(component, reg,
571 mask, val, &change);
572
573 if (ret < 0)
574 return soc_component_ret(component, ret);
575 return change;
576 }
577 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
578
579 /**
580 * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
581 * @component: Component for which to wait
582 *
583 * This function blocks until all asynchronous I/O which has previously been
584 * scheduled using snd_soc_component_update_bits_async() has completed.
585 */
snd_soc_component_async_complete(struct snd_soc_component * component)586 void snd_soc_component_async_complete(struct snd_soc_component *component)
587 {
588 if (component->regmap)
589 regmap_async_complete(component->regmap);
590 }
591 EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
592
593 /**
594 * snd_soc_component_test_bits - Test register for change
595 * @component: component
596 * @reg: Register to test
597 * @mask: Mask that specifies which bits to test
598 * @value: Value to test against
599 *
600 * Tests a register with a new value and checks if the new value is
601 * different from the old value.
602 *
603 * Return: 1 for change, otherwise 0.
604 */
snd_soc_component_test_bits(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int value)605 int snd_soc_component_test_bits(struct snd_soc_component *component,
606 unsigned int reg, unsigned int mask, unsigned int value)
607 {
608 unsigned int old, new;
609
610 old = snd_soc_component_read(component, reg);
611 new = (old & ~mask) | value;
612 return old != new;
613 }
614 EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
615
snd_soc_pcm_component_pointer(struct snd_pcm_substream * substream)616 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
617 {
618 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
619 struct snd_soc_component *component;
620 int i;
621
622 /* FIXME: use 1st pointer */
623 for_each_rtd_components(rtd, i, component)
624 if (component->driver->pointer)
625 return component->driver->pointer(component, substream);
626
627 return 0;
628 }
629
snd_soc_pcm_component_ioctl(struct snd_pcm_substream * substream,unsigned int cmd,void * arg)630 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
631 unsigned int cmd, void *arg)
632 {
633 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
634 struct snd_soc_component *component;
635 int i;
636
637 /* FIXME: use 1st ioctl */
638 for_each_rtd_components(rtd, i, component)
639 if (component->driver->ioctl)
640 return soc_component_ret(
641 component,
642 component->driver->ioctl(component,
643 substream, cmd, arg));
644
645 return snd_pcm_lib_ioctl(substream, cmd, arg);
646 }
647
snd_soc_pcm_component_sync_stop(struct snd_pcm_substream * substream)648 int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
649 {
650 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
651 struct snd_soc_component *component;
652 int i, ret;
653
654 for_each_rtd_components(rtd, i, component) {
655 if (component->driver->sync_stop) {
656 ret = component->driver->sync_stop(component,
657 substream);
658 if (ret < 0)
659 return soc_component_ret(component, ret);
660 }
661 }
662
663 return 0;
664 }
665
snd_soc_pcm_component_copy_user(struct snd_pcm_substream * substream,int channel,unsigned long pos,void __user * buf,unsigned long bytes)666 int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
667 int channel, unsigned long pos,
668 void __user *buf, unsigned long bytes)
669 {
670 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
671 struct snd_soc_component *component;
672 int i;
673
674 /* FIXME. it returns 1st copy now */
675 for_each_rtd_components(rtd, i, component)
676 if (component->driver->copy_user)
677 return soc_component_ret(
678 component,
679 component->driver->copy_user(
680 component, substream, channel,
681 pos, buf, bytes));
682
683 return -EINVAL;
684 }
685
snd_soc_pcm_component_page(struct snd_pcm_substream * substream,unsigned long offset)686 struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
687 unsigned long offset)
688 {
689 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
690 struct snd_soc_component *component;
691 struct page *page;
692 int i;
693
694 /* FIXME. it returns 1st page now */
695 for_each_rtd_components(rtd, i, component) {
696 if (component->driver->page) {
697 page = component->driver->page(component,
698 substream, offset);
699 if (page)
700 return page;
701 }
702 }
703
704 return NULL;
705 }
706
snd_soc_pcm_component_mmap(struct snd_pcm_substream * substream,struct vm_area_struct * vma)707 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
708 struct vm_area_struct *vma)
709 {
710 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
711 struct snd_soc_component *component;
712 int i;
713
714 /* FIXME. it returns 1st mmap now */
715 for_each_rtd_components(rtd, i, component)
716 if (component->driver->mmap)
717 return soc_component_ret(
718 component,
719 component->driver->mmap(component,
720 substream, vma));
721
722 return -EINVAL;
723 }
724
snd_soc_pcm_component_new(struct snd_soc_pcm_runtime * rtd)725 int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
726 {
727 struct snd_soc_component *component;
728 int ret;
729 int i;
730
731 for_each_rtd_components(rtd, i, component) {
732 if (component->driver->pcm_construct) {
733 ret = component->driver->pcm_construct(component, rtd);
734 if (ret < 0)
735 return soc_component_ret(component, ret);
736 }
737 }
738
739 return 0;
740 }
741
snd_soc_pcm_component_free(struct snd_soc_pcm_runtime * rtd)742 void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
743 {
744 struct snd_soc_component *component;
745 int i;
746
747 if (!rtd->pcm)
748 return;
749
750 for_each_rtd_components(rtd, i, component)
751 if (component->driver->pcm_destruct)
752 component->driver->pcm_destruct(component, rtd->pcm);
753 }
754
snd_soc_pcm_component_prepare(struct snd_pcm_substream * substream)755 int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
756 {
757 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
758 struct snd_soc_component *component;
759 int i, ret;
760
761 for_each_rtd_components(rtd, i, component) {
762 if (component->driver->prepare) {
763 ret = component->driver->prepare(component, substream);
764 if (ret < 0)
765 return soc_component_ret(component, ret);
766 }
767 }
768
769 return 0;
770 }
771
snd_soc_pcm_component_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_component ** last)772 int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
773 struct snd_pcm_hw_params *params,
774 struct snd_soc_component **last)
775 {
776 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
777 struct snd_soc_component *component;
778 int i, ret;
779
780 for_each_rtd_components(rtd, i, component) {
781 if (component->driver->hw_params) {
782 ret = component->driver->hw_params(component,
783 substream, params);
784 if (ret < 0) {
785 *last = component;
786 return soc_component_ret(component, ret);
787 }
788 }
789 }
790
791 *last = NULL;
792 return 0;
793 }
794
snd_soc_pcm_component_hw_free(struct snd_pcm_substream * substream,struct snd_soc_component * last)795 void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
796 struct snd_soc_component *last)
797 {
798 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
799 struct snd_soc_component *component;
800 int i, ret;
801
802 for_each_rtd_components(rtd, i, component) {
803 if (component == last)
804 break;
805
806 if (component->driver->hw_free) {
807 ret = component->driver->hw_free(component, substream);
808 if (ret < 0)
809 soc_component_ret(component, ret);
810 }
811 }
812 }
813
snd_soc_pcm_component_trigger(struct snd_pcm_substream * substream,int cmd)814 int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
815 int cmd)
816 {
817 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
818 struct snd_soc_component *component;
819 int i, ret;
820
821 for_each_rtd_components(rtd, i, component) {
822 if (component->driver->trigger) {
823 ret = component->driver->trigger(component, substream, cmd);
824 if (ret < 0)
825 return soc_component_ret(component, ret);
826 }
827 }
828
829 return 0;
830 }
831
snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime * rtd,void * stream)832 int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
833 void *stream)
834 {
835 struct snd_soc_component *component;
836 int i, ret;
837
838 for_each_rtd_components(rtd, i, component) {
839 ret = pm_runtime_get_sync(component->dev);
840 if (ret < 0 && ret != -EACCES) {
841 pm_runtime_put_noidle(component->dev);
842 return soc_component_ret(component, ret);
843 }
844 /* mark stream if succeeded */
845 soc_component_mark_push(component, stream, pm);
846 }
847
848 return 0;
849 }
850
snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime * rtd,void * stream,int rollback)851 void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
852 void *stream, int rollback)
853 {
854 struct snd_soc_component *component;
855 int i;
856
857 for_each_rtd_components(rtd, i, component) {
858 if (rollback && !soc_component_mark_match(component, stream, pm))
859 continue;
860
861 pm_runtime_mark_last_busy(component->dev);
862 pm_runtime_put_autosuspend(component->dev);
863
864 /* remove marked stream */
865 soc_component_mark_pop(component, stream, pm);
866 }
867 }
868