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
soc_component_pin(struct snd_soc_component * component,const char * pin,int (* pin_func)(struct snd_soc_dapm_context * dapm,const char * pin))138 static int soc_component_pin(struct snd_soc_component *component,
139 const char *pin,
140 int (*pin_func)(struct snd_soc_dapm_context *dapm,
141 const char *pin))
142 {
143 struct snd_soc_dapm_context *dapm =
144 snd_soc_component_get_dapm(component);
145 char *full_name;
146 int ret;
147
148 if (!component->name_prefix) {
149 ret = pin_func(dapm, pin);
150 goto end;
151 }
152
153 full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
154 if (!full_name) {
155 ret = -ENOMEM;
156 goto end;
157 }
158
159 ret = pin_func(dapm, full_name);
160 kfree(full_name);
161 end:
162 return soc_component_ret(component, ret);
163 }
164
snd_soc_component_enable_pin(struct snd_soc_component * component,const char * pin)165 int snd_soc_component_enable_pin(struct snd_soc_component *component,
166 const char *pin)
167 {
168 return soc_component_pin(component, pin, snd_soc_dapm_enable_pin);
169 }
170 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
171
snd_soc_component_enable_pin_unlocked(struct snd_soc_component * component,const char * pin)172 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
173 const char *pin)
174 {
175 return soc_component_pin(component, pin, snd_soc_dapm_enable_pin_unlocked);
176 }
177 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
178
snd_soc_component_disable_pin(struct snd_soc_component * component,const char * pin)179 int snd_soc_component_disable_pin(struct snd_soc_component *component,
180 const char *pin)
181 {
182 return soc_component_pin(component, pin, snd_soc_dapm_disable_pin);
183 }
184 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
185
snd_soc_component_disable_pin_unlocked(struct snd_soc_component * component,const char * pin)186 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
187 const char *pin)
188 {
189 return soc_component_pin(component, pin, snd_soc_dapm_disable_pin_unlocked);
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 return soc_component_pin(component, pin, snd_soc_dapm_nc_pin);
197 }
198 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
199
snd_soc_component_nc_pin_unlocked(struct snd_soc_component * component,const char * pin)200 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
201 const char *pin)
202 {
203 return soc_component_pin(component, pin, snd_soc_dapm_nc_pin_unlocked);
204 }
205 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
206
snd_soc_component_get_pin_status(struct snd_soc_component * component,const char * pin)207 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
208 const char *pin)
209 {
210 return soc_component_pin(component, pin, snd_soc_dapm_get_pin_status);
211 }
212 EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
213
snd_soc_component_force_enable_pin(struct snd_soc_component * component,const char * pin)214 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
215 const char *pin)
216 {
217 return soc_component_pin(component, pin, snd_soc_dapm_force_enable_pin);
218 }
219 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
220
snd_soc_component_force_enable_pin_unlocked(struct snd_soc_component * component,const char * pin)221 int snd_soc_component_force_enable_pin_unlocked(
222 struct snd_soc_component *component,
223 const char *pin)
224 {
225 return soc_component_pin(component, pin, snd_soc_dapm_force_enable_pin_unlocked);
226 }
227 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
228
229 /**
230 * snd_soc_component_set_jack - configure component jack.
231 * @component: COMPONENTs
232 * @jack: structure to use for the jack
233 * @data: can be used if codec driver need extra data for configuring jack
234 *
235 * Configures and enables jack detection function.
236 */
snd_soc_component_set_jack(struct snd_soc_component * component,struct snd_soc_jack * jack,void * data)237 int snd_soc_component_set_jack(struct snd_soc_component *component,
238 struct snd_soc_jack *jack, void *data)
239 {
240 int ret = -ENOTSUPP;
241
242 if (component->driver->set_jack)
243 ret = component->driver->set_jack(component, jack, data);
244
245 return soc_component_ret(component, ret);
246 }
247 EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
248
snd_soc_component_module_get(struct snd_soc_component * component,struct snd_pcm_substream * substream,int upon_open)249 int snd_soc_component_module_get(struct snd_soc_component *component,
250 struct snd_pcm_substream *substream,
251 int upon_open)
252 {
253 int ret = 0;
254
255 if (component->driver->module_get_upon_open == !!upon_open &&
256 !try_module_get(component->dev->driver->owner))
257 ret = -ENODEV;
258
259 /* mark substream if succeeded */
260 if (ret == 0)
261 soc_component_mark_push(component, substream, module);
262
263 return soc_component_ret(component, ret);
264 }
265
snd_soc_component_module_put(struct snd_soc_component * component,struct snd_pcm_substream * substream,int upon_open,int rollback)266 void snd_soc_component_module_put(struct snd_soc_component *component,
267 struct snd_pcm_substream *substream,
268 int upon_open, int rollback)
269 {
270 if (rollback && !soc_component_mark_match(component, substream, module))
271 return;
272
273 if (component->driver->module_get_upon_open == !!upon_open)
274 module_put(component->dev->driver->owner);
275
276 /* remove marked substream */
277 soc_component_mark_pop(component, substream, module);
278 }
279
snd_soc_component_open(struct snd_soc_component * component,struct snd_pcm_substream * substream)280 int snd_soc_component_open(struct snd_soc_component *component,
281 struct snd_pcm_substream *substream)
282 {
283 int ret = 0;
284
285 if (component->driver->open)
286 ret = component->driver->open(component, substream);
287
288 /* mark substream if succeeded */
289 if (ret == 0)
290 soc_component_mark_push(component, substream, open);
291
292 return soc_component_ret(component, ret);
293 }
294
snd_soc_component_close(struct snd_soc_component * component,struct snd_pcm_substream * substream,int rollback)295 int snd_soc_component_close(struct snd_soc_component *component,
296 struct snd_pcm_substream *substream,
297 int rollback)
298 {
299 int ret = 0;
300
301 if (rollback && !soc_component_mark_match(component, substream, open))
302 return 0;
303
304 if (component->driver->close)
305 ret = component->driver->close(component, substream);
306
307 /* remove marked substream */
308 soc_component_mark_pop(component, substream, open);
309
310 return soc_component_ret(component, ret);
311 }
312
snd_soc_component_suspend(struct snd_soc_component * component)313 void snd_soc_component_suspend(struct snd_soc_component *component)
314 {
315 if (component->driver->suspend)
316 component->driver->suspend(component);
317 component->suspended = 1;
318 }
319
snd_soc_component_resume(struct snd_soc_component * component)320 void snd_soc_component_resume(struct snd_soc_component *component)
321 {
322 if (component->driver->resume)
323 component->driver->resume(component);
324 component->suspended = 0;
325 }
326
snd_soc_component_is_suspended(struct snd_soc_component * component)327 int snd_soc_component_is_suspended(struct snd_soc_component *component)
328 {
329 return component->suspended;
330 }
331
snd_soc_component_probe(struct snd_soc_component * component)332 int snd_soc_component_probe(struct snd_soc_component *component)
333 {
334 int ret = 0;
335
336 if (component->driver->probe)
337 ret = component->driver->probe(component);
338
339 return soc_component_ret(component, ret);
340 }
341
snd_soc_component_remove(struct snd_soc_component * component)342 void snd_soc_component_remove(struct snd_soc_component *component)
343 {
344 if (component->driver->remove)
345 component->driver->remove(component);
346 }
347
snd_soc_component_of_xlate_dai_id(struct snd_soc_component * component,struct device_node * ep)348 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
349 struct device_node *ep)
350 {
351 int ret = -ENOTSUPP;
352
353 if (component->driver->of_xlate_dai_id)
354 ret = component->driver->of_xlate_dai_id(component, ep);
355
356 return soc_component_ret(component, ret);
357 }
358
snd_soc_component_of_xlate_dai_name(struct snd_soc_component * component,struct of_phandle_args * args,const char ** dai_name)359 int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
360 struct of_phandle_args *args,
361 const char **dai_name)
362 {
363 if (component->driver->of_xlate_dai_name)
364 return component->driver->of_xlate_dai_name(component,
365 args, dai_name);
366 /*
367 * Don't use soc_component_ret here because we may not want to report
368 * the error just yet. If a device has more than one component, the
369 * first may not match and we don't want spam the log with this.
370 */
371 return -ENOTSUPP;
372 }
373
snd_soc_component_setup_regmap(struct snd_soc_component * component)374 void snd_soc_component_setup_regmap(struct snd_soc_component *component)
375 {
376 int val_bytes = regmap_get_val_bytes(component->regmap);
377
378 /* Errors are legitimate for non-integer byte multiples */
379 if (val_bytes > 0)
380 component->val_bytes = val_bytes;
381 }
382
383 #ifdef CONFIG_REGMAP
384
385 /**
386 * snd_soc_component_init_regmap() - Initialize regmap instance for the
387 * component
388 * @component: The component for which to initialize the regmap instance
389 * @regmap: The regmap instance that should be used by the component
390 *
391 * This function allows deferred assignment of the regmap instance that is
392 * associated with the component. Only use this if the regmap instance is not
393 * yet ready when the component is registered. The function must also be called
394 * before the first IO attempt of the component.
395 */
snd_soc_component_init_regmap(struct snd_soc_component * component,struct regmap * regmap)396 void snd_soc_component_init_regmap(struct snd_soc_component *component,
397 struct regmap *regmap)
398 {
399 component->regmap = regmap;
400 snd_soc_component_setup_regmap(component);
401 }
402 EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
403
404 /**
405 * snd_soc_component_exit_regmap() - De-initialize regmap instance for the
406 * component
407 * @component: The component for which to de-initialize the regmap instance
408 *
409 * Calls regmap_exit() on the regmap instance associated to the component and
410 * removes the regmap instance from the component.
411 *
412 * This function should only be used if snd_soc_component_init_regmap() was used
413 * to initialize the regmap instance.
414 */
snd_soc_component_exit_regmap(struct snd_soc_component * component)415 void snd_soc_component_exit_regmap(struct snd_soc_component *component)
416 {
417 regmap_exit(component->regmap);
418 component->regmap = NULL;
419 }
420 EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
421
422 #endif
423
soc_component_read_no_lock(struct snd_soc_component * component,unsigned int reg)424 static unsigned int soc_component_read_no_lock(
425 struct snd_soc_component *component,
426 unsigned int reg)
427 {
428 int ret;
429 unsigned int val = 0;
430
431 if (component->regmap)
432 ret = regmap_read(component->regmap, reg, &val);
433 else if (component->driver->read) {
434 ret = 0;
435 val = component->driver->read(component, reg);
436 }
437 else
438 ret = -EIO;
439
440 if (ret < 0)
441 return soc_component_ret(component, ret);
442
443 return val;
444 }
445
446 /**
447 * snd_soc_component_read() - Read register value
448 * @component: Component to read from
449 * @reg: Register to read
450 *
451 * Return: read value
452 */
snd_soc_component_read(struct snd_soc_component * component,unsigned int reg)453 unsigned int snd_soc_component_read(struct snd_soc_component *component,
454 unsigned int reg)
455 {
456 unsigned int val;
457
458 mutex_lock(&component->io_mutex);
459 val = soc_component_read_no_lock(component, reg);
460 mutex_unlock(&component->io_mutex);
461
462 return val;
463 }
464 EXPORT_SYMBOL_GPL(snd_soc_component_read);
465
soc_component_write_no_lock(struct snd_soc_component * component,unsigned int reg,unsigned int val)466 static int soc_component_write_no_lock(
467 struct snd_soc_component *component,
468 unsigned int reg, unsigned int val)
469 {
470 int ret = -EIO;
471
472 if (component->regmap)
473 ret = regmap_write(component->regmap, reg, val);
474 else if (component->driver->write)
475 ret = component->driver->write(component, reg, val);
476
477 return soc_component_ret(component, ret);
478 }
479
480 /**
481 * snd_soc_component_write() - Write register value
482 * @component: Component to write to
483 * @reg: Register to write
484 * @val: Value to write to the register
485 *
486 * Return: 0 on success, a negative error code otherwise.
487 */
snd_soc_component_write(struct snd_soc_component * component,unsigned int reg,unsigned int val)488 int snd_soc_component_write(struct snd_soc_component *component,
489 unsigned int reg, unsigned int val)
490 {
491 int ret;
492
493 mutex_lock(&component->io_mutex);
494 ret = soc_component_write_no_lock(component, reg, val);
495 mutex_unlock(&component->io_mutex);
496
497 return ret;
498 }
499 EXPORT_SYMBOL_GPL(snd_soc_component_write);
500
snd_soc_component_update_bits_legacy(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val,bool * change)501 static int snd_soc_component_update_bits_legacy(
502 struct snd_soc_component *component, unsigned int reg,
503 unsigned int mask, unsigned int val, bool *change)
504 {
505 unsigned int old, new;
506 int ret = 0;
507
508 mutex_lock(&component->io_mutex);
509
510 old = soc_component_read_no_lock(component, reg);
511
512 new = (old & ~mask) | (val & mask);
513 *change = old != new;
514 if (*change)
515 ret = soc_component_write_no_lock(component, reg, new);
516
517 mutex_unlock(&component->io_mutex);
518
519 return soc_component_ret(component, ret);
520 }
521
522 /**
523 * snd_soc_component_update_bits() - Perform read/modify/write cycle
524 * @component: Component to update
525 * @reg: Register to update
526 * @mask: Mask that specifies which bits to update
527 * @val: New value for the bits specified by mask
528 *
529 * Return: 1 if the operation was successful and the value of the register
530 * changed, 0 if the operation was successful, but the value did not change.
531 * Returns a negative error code otherwise.
532 */
snd_soc_component_update_bits(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val)533 int snd_soc_component_update_bits(struct snd_soc_component *component,
534 unsigned int reg, unsigned int mask, unsigned int val)
535 {
536 bool change;
537 int ret;
538
539 if (component->regmap)
540 ret = regmap_update_bits_check(component->regmap, reg, mask,
541 val, &change);
542 else
543 ret = snd_soc_component_update_bits_legacy(component, reg,
544 mask, val, &change);
545
546 if (ret < 0)
547 return soc_component_ret(component, ret);
548 return change;
549 }
550 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
551
552 /**
553 * snd_soc_component_update_bits_async() - Perform asynchronous
554 * read/modify/write cycle
555 * @component: Component to update
556 * @reg: Register to update
557 * @mask: Mask that specifies which bits to update
558 * @val: New value for the bits specified by mask
559 *
560 * This function is similar to snd_soc_component_update_bits(), but the update
561 * operation is scheduled asynchronously. This means it may not be completed
562 * when the function returns. To make sure that all scheduled updates have been
563 * completed snd_soc_component_async_complete() must be called.
564 *
565 * Return: 1 if the operation was successful and the value of the register
566 * changed, 0 if the operation was successful, but the value did not change.
567 * Returns a negative error code otherwise.
568 */
snd_soc_component_update_bits_async(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int val)569 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
570 unsigned int reg, unsigned int mask, unsigned int val)
571 {
572 bool change;
573 int ret;
574
575 if (component->regmap)
576 ret = regmap_update_bits_check_async(component->regmap, reg,
577 mask, val, &change);
578 else
579 ret = snd_soc_component_update_bits_legacy(component, reg,
580 mask, val, &change);
581
582 if (ret < 0)
583 return soc_component_ret(component, ret);
584 return change;
585 }
586 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
587
588 /**
589 * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
590 * @component: Component for which to wait
591 *
592 * This function blocks until all asynchronous I/O which has previously been
593 * scheduled using snd_soc_component_update_bits_async() has completed.
594 */
snd_soc_component_async_complete(struct snd_soc_component * component)595 void snd_soc_component_async_complete(struct snd_soc_component *component)
596 {
597 if (component->regmap)
598 regmap_async_complete(component->regmap);
599 }
600 EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
601
602 /**
603 * snd_soc_component_test_bits - Test register for change
604 * @component: component
605 * @reg: Register to test
606 * @mask: Mask that specifies which bits to test
607 * @value: Value to test against
608 *
609 * Tests a register with a new value and checks if the new value is
610 * different from the old value.
611 *
612 * Return: 1 for change, otherwise 0.
613 */
snd_soc_component_test_bits(struct snd_soc_component * component,unsigned int reg,unsigned int mask,unsigned int value)614 int snd_soc_component_test_bits(struct snd_soc_component *component,
615 unsigned int reg, unsigned int mask, unsigned int value)
616 {
617 unsigned int old, new;
618
619 old = snd_soc_component_read(component, reg);
620 new = (old & ~mask) | value;
621 return old != new;
622 }
623 EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
624
snd_soc_pcm_component_pointer(struct snd_pcm_substream * substream)625 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
626 {
627 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
628 struct snd_soc_component *component;
629 int i;
630
631 /* FIXME: use 1st pointer */
632 for_each_rtd_components(rtd, i, component)
633 if (component->driver->pointer)
634 return component->driver->pointer(component, substream);
635
636 return 0;
637 }
638
snd_soc_pcm_component_ioctl(struct snd_pcm_substream * substream,unsigned int cmd,void * arg)639 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
640 unsigned int cmd, void *arg)
641 {
642 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
643 struct snd_soc_component *component;
644 int i;
645
646 /* FIXME: use 1st ioctl */
647 for_each_rtd_components(rtd, i, component)
648 if (component->driver->ioctl)
649 return soc_component_ret(
650 component,
651 component->driver->ioctl(component,
652 substream, cmd, arg));
653
654 return snd_pcm_lib_ioctl(substream, cmd, arg);
655 }
656
snd_soc_pcm_component_sync_stop(struct snd_pcm_substream * substream)657 int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
658 {
659 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
660 struct snd_soc_component *component;
661 int i, ret;
662
663 for_each_rtd_components(rtd, i, component) {
664 if (component->driver->sync_stop) {
665 ret = component->driver->sync_stop(component,
666 substream);
667 if (ret < 0)
668 return soc_component_ret(component, ret);
669 }
670 }
671
672 return 0;
673 }
674
snd_soc_pcm_component_copy_user(struct snd_pcm_substream * substream,int channel,unsigned long pos,void __user * buf,unsigned long bytes)675 int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
676 int channel, unsigned long pos,
677 void __user *buf, unsigned long bytes)
678 {
679 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
680 struct snd_soc_component *component;
681 int i;
682
683 /* FIXME. it returns 1st copy now */
684 for_each_rtd_components(rtd, i, component)
685 if (component->driver->copy_user)
686 return soc_component_ret(
687 component,
688 component->driver->copy_user(
689 component, substream, channel,
690 pos, buf, bytes));
691
692 return -EINVAL;
693 }
694
snd_soc_pcm_component_page(struct snd_pcm_substream * substream,unsigned long offset)695 struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
696 unsigned long offset)
697 {
698 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
699 struct snd_soc_component *component;
700 struct page *page;
701 int i;
702
703 /* FIXME. it returns 1st page now */
704 for_each_rtd_components(rtd, i, component) {
705 if (component->driver->page) {
706 page = component->driver->page(component,
707 substream, offset);
708 if (page)
709 return page;
710 }
711 }
712
713 return NULL;
714 }
715
snd_soc_pcm_component_mmap(struct snd_pcm_substream * substream,struct vm_area_struct * vma)716 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
717 struct vm_area_struct *vma)
718 {
719 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
720 struct snd_soc_component *component;
721 int i;
722
723 /* FIXME. it returns 1st mmap now */
724 for_each_rtd_components(rtd, i, component)
725 if (component->driver->mmap)
726 return soc_component_ret(
727 component,
728 component->driver->mmap(component,
729 substream, vma));
730
731 return -EINVAL;
732 }
733
snd_soc_pcm_component_new(struct snd_soc_pcm_runtime * rtd)734 int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
735 {
736 struct snd_soc_component *component;
737 int ret;
738 int i;
739
740 for_each_rtd_components(rtd, i, component) {
741 if (component->driver->pcm_construct) {
742 ret = component->driver->pcm_construct(component, rtd);
743 if (ret < 0)
744 return soc_component_ret(component, ret);
745 }
746 }
747
748 return 0;
749 }
750
snd_soc_pcm_component_free(struct snd_soc_pcm_runtime * rtd)751 void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
752 {
753 struct snd_soc_component *component;
754 int i;
755
756 if (!rtd->pcm)
757 return;
758
759 for_each_rtd_components(rtd, i, component)
760 if (component->driver->pcm_destruct)
761 component->driver->pcm_destruct(component, rtd->pcm);
762 }
763
snd_soc_pcm_component_prepare(struct snd_pcm_substream * substream)764 int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
765 {
766 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
767 struct snd_soc_component *component;
768 int i, ret;
769
770 for_each_rtd_components(rtd, i, component) {
771 if (component->driver->prepare) {
772 ret = component->driver->prepare(component, substream);
773 if (ret < 0)
774 return soc_component_ret(component, ret);
775 }
776 }
777
778 return 0;
779 }
780
snd_soc_pcm_component_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_component ** last)781 int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
782 struct snd_pcm_hw_params *params,
783 struct snd_soc_component **last)
784 {
785 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
786 struct snd_soc_component *component;
787 int i, ret;
788
789 for_each_rtd_components(rtd, i, component) {
790 if (component->driver->hw_params) {
791 ret = component->driver->hw_params(component,
792 substream, params);
793 if (ret < 0) {
794 *last = component;
795 return soc_component_ret(component, ret);
796 }
797 }
798 }
799
800 *last = NULL;
801 return 0;
802 }
803
snd_soc_pcm_component_hw_free(struct snd_pcm_substream * substream,struct snd_soc_component * last)804 void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
805 struct snd_soc_component *last)
806 {
807 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
808 struct snd_soc_component *component;
809 int i, ret;
810
811 for_each_rtd_components(rtd, i, component) {
812 if (component == last)
813 break;
814
815 if (component->driver->hw_free) {
816 ret = component->driver->hw_free(component, substream);
817 if (ret < 0)
818 soc_component_ret(component, ret);
819 }
820 }
821 }
822
snd_soc_pcm_component_trigger(struct snd_pcm_substream * substream,int cmd)823 int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
824 int cmd)
825 {
826 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
827 struct snd_soc_component *component;
828 int i, ret;
829
830 for_each_rtd_components(rtd, i, component) {
831 if (component->driver->trigger) {
832 ret = component->driver->trigger(component, substream, cmd);
833 if (ret < 0)
834 return soc_component_ret(component, ret);
835 }
836 }
837
838 return 0;
839 }
840
snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime * rtd,void * stream)841 int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
842 void *stream)
843 {
844 struct snd_soc_component *component;
845 int i, ret;
846
847 for_each_rtd_components(rtd, i, component) {
848 ret = pm_runtime_get_sync(component->dev);
849 if (ret < 0 && ret != -EACCES) {
850 pm_runtime_put_noidle(component->dev);
851 return soc_component_ret(component, ret);
852 }
853 /* mark stream if succeeded */
854 soc_component_mark_push(component, stream, pm);
855 }
856
857 return 0;
858 }
859
snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime * rtd,void * stream,int rollback)860 void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
861 void *stream, int rollback)
862 {
863 struct snd_soc_component *component;
864 int i;
865
866 for_each_rtd_components(rtd, i, component) {
867 if (rollback && !soc_component_mark_match(component, stream, pm))
868 continue;
869
870 pm_runtime_mark_last_busy(component->dev);
871 pm_runtime_put_autosuspend(component->dev);
872
873 /* remove marked stream */
874 soc_component_mark_pop(component, stream, pm);
875 }
876 }
877