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Commit | Line | Data |
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873486ed KM |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // soc-core.c -- ALSA SoC Audio Layer | |
4 | // | |
5 | // Copyright 2005 Wolfson Microelectronics PLC. | |
6 | // Copyright 2005 Openedhand Ltd. | |
7 | // Copyright (C) 2010 Slimlogic Ltd. | |
8 | // Copyright (C) 2010 Texas Instruments Inc. | |
9 | // | |
10 | // Author: Liam Girdwood <lrg@slimlogic.co.uk> | |
11 | // with code, comments and ideas from :- | |
12 | // Richard Purdie <richard@openedhand.com> | |
13 | // | |
14 | // TODO: | |
15 | // o Add hw rules to enforce rates, etc. | |
16 | // o More testing with other codecs/machines. | |
17 | // o Add more codecs and platforms to ensure good API coverage. | |
18 | // o Support TDM on PCM and I2S | |
db2a4165 FM |
19 | |
20 | #include <linux/module.h> | |
21 | #include <linux/moduleparam.h> | |
22 | #include <linux/init.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/pm.h> | |
25 | #include <linux/bitops.h> | |
12ef193d | 26 | #include <linux/debugfs.h> |
db2a4165 | 27 | #include <linux/platform_device.h> |
741a509f | 28 | #include <linux/pinctrl/consumer.h> |
f0e8ed85 | 29 | #include <linux/ctype.h> |
5a0e3ad6 | 30 | #include <linux/slab.h> |
bec4fa05 | 31 | #include <linux/of.h> |
a180e8b9 | 32 | #include <linux/of_graph.h> |
345233d7 | 33 | #include <linux/dmi.h> |
db2a4165 | 34 | #include <sound/core.h> |
3028eb8c | 35 | #include <sound/jack.h> |
db2a4165 FM |
36 | #include <sound/pcm.h> |
37 | #include <sound/pcm_params.h> | |
38 | #include <sound/soc.h> | |
01d7584c | 39 | #include <sound/soc-dpcm.h> |
8a978234 | 40 | #include <sound/soc-topology.h> |
02e75636 | 41 | #include <sound/soc-link.h> |
db2a4165 FM |
42 | #include <sound/initval.h> |
43 | ||
a8b1d34f MB |
44 | #define CREATE_TRACE_POINTS |
45 | #include <trace/events/asoc.h> | |
46 | ||
f0fba2ad LG |
47 | #define NAME_SIZE 32 |
48 | ||
c5af3a2e | 49 | static DEFINE_MUTEX(client_mutex); |
030e79f6 | 50 | static LIST_HEAD(component_list); |
e894efef | 51 | static LIST_HEAD(unbind_card_list); |
c5af3a2e | 52 | |
368dee94 KM |
53 | #define for_each_component(component) \ |
54 | list_for_each_entry(component, &component_list, list) | |
55 | ||
587c9844 KM |
56 | /* |
57 | * This is used if driver don't need to have CPU/Codec/Platform | |
58 | * dai_link. see soc.h | |
59 | */ | |
60 | struct snd_soc_dai_link_component null_dailink_component[0]; | |
61 | EXPORT_SYMBOL_GPL(null_dailink_component); | |
62 | ||
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
dbe21408 MB |
72 | static ssize_t pmdown_time_show(struct device *dev, |
73 | struct device_attribute *attr, char *buf) | |
74 | { | |
36ae1a96 | 75 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 76 | |
f0fba2ad | 77 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
78 | } |
79 | ||
80 | static ssize_t pmdown_time_set(struct device *dev, | |
81 | struct device_attribute *attr, | |
82 | const char *buf, size_t count) | |
83 | { | |
36ae1a96 | 84 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 85 | int ret; |
dbe21408 | 86 | |
b785a492 | 87 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
88 | if (ret) |
89 | return ret; | |
dbe21408 MB |
90 | |
91 | return count; | |
92 | } | |
93 | ||
94 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
95 | ||
d29697dc | 96 | static struct attribute *soc_dev_attrs[] = { |
d29697dc TI |
97 | &dev_attr_pmdown_time.attr, |
98 | NULL | |
99 | }; | |
100 | ||
101 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
102 | struct attribute *attr, int idx) | |
103 | { | |
104 | struct device *dev = kobj_to_dev(kobj); | |
105 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
106 | ||
d918a376 KM |
107 | if (!rtd) |
108 | return 0; | |
109 | ||
d29697dc TI |
110 | if (attr == &dev_attr_pmdown_time.attr) |
111 | return attr->mode; /* always visible */ | |
3b6eed8d | 112 | return rtd->num_codecs ? attr->mode : 0; /* enabled only with codec */ |
d29697dc TI |
113 | } |
114 | ||
115 | static const struct attribute_group soc_dapm_dev_group = { | |
116 | .attrs = soc_dapm_dev_attrs, | |
117 | .is_visible = soc_dev_attr_is_visible, | |
118 | }; | |
119 | ||
f7e73b26 | 120 | static const struct attribute_group soc_dev_group = { |
d29697dc TI |
121 | .attrs = soc_dev_attrs, |
122 | .is_visible = soc_dev_attr_is_visible, | |
123 | }; | |
124 | ||
125 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
126 | &soc_dapm_dev_group, | |
f7e73b26 | 127 | &soc_dev_group, |
d29697dc TI |
128 | NULL |
129 | }; | |
130 | ||
2624d5fa | 131 | #ifdef CONFIG_DEBUG_FS |
a4072cdf KM |
132 | struct dentry *snd_soc_debugfs_root; |
133 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
134 | ||
81c7cfd1 | 135 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 136 | { |
6553bf06 LPC |
137 | if (!component->card->debugfs_card_root) |
138 | return; | |
139 | ||
81c7cfd1 LPC |
140 | if (component->debugfs_prefix) { |
141 | char *name; | |
e73f3de5 | 142 | |
81c7cfd1 LPC |
143 | name = kasprintf(GFP_KERNEL, "%s:%s", |
144 | component->debugfs_prefix, component->name); | |
145 | if (name) { | |
146 | component->debugfs_root = debugfs_create_dir(name, | |
147 | component->card->debugfs_card_root); | |
148 | kfree(name); | |
149 | } | |
150 | } else { | |
151 | component->debugfs_root = debugfs_create_dir(component->name, | |
152 | component->card->debugfs_card_root); | |
153 | } | |
e73f3de5 | 154 | |
81c7cfd1 LPC |
155 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
156 | component->debugfs_root); | |
e73f3de5 RK |
157 | } |
158 | ||
81c7cfd1 | 159 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 160 | { |
ad64bfbd KM |
161 | if (!component->debugfs_root) |
162 | return; | |
81c7cfd1 | 163 | debugfs_remove_recursive(component->debugfs_root); |
ad64bfbd | 164 | component->debugfs_root = NULL; |
81c7cfd1 | 165 | } |
d6ce4cf3 | 166 | |
c15b2a1d | 167 | static int dai_list_show(struct seq_file *m, void *v) |
f3208780 | 168 | { |
1438c2f6 | 169 | struct snd_soc_component *component; |
f3208780 MB |
170 | struct snd_soc_dai *dai; |
171 | ||
34e81ab4 LPC |
172 | mutex_lock(&client_mutex); |
173 | ||
368dee94 | 174 | for_each_component(component) |
15a0c645 | 175 | for_each_component_dais(component, dai) |
700c17ca | 176 | seq_printf(m, "%s\n", dai->name); |
f3208780 | 177 | |
34e81ab4 LPC |
178 | mutex_unlock(&client_mutex); |
179 | ||
700c17ca DP |
180 | return 0; |
181 | } | |
c15b2a1d | 182 | DEFINE_SHOW_ATTRIBUTE(dai_list); |
f3208780 | 183 | |
db795f9b KM |
184 | static int component_list_show(struct seq_file *m, void *v) |
185 | { | |
186 | struct snd_soc_component *component; | |
187 | ||
188 | mutex_lock(&client_mutex); | |
189 | ||
368dee94 | 190 | for_each_component(component) |
db795f9b KM |
191 | seq_printf(m, "%s\n", component->name); |
192 | ||
193 | mutex_unlock(&client_mutex); | |
194 | ||
195 | return 0; | |
196 | } | |
197 | DEFINE_SHOW_ATTRIBUTE(component_list); | |
198 | ||
a6052154 JN |
199 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
200 | { | |
201 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 202 | snd_soc_debugfs_root); |
3a45b867 | 203 | |
fee531d6 GKH |
204 | debugfs_create_u32("dapm_pop_time", 0644, card->debugfs_card_root, |
205 | &card->pop_time); | |
d8ca7a0a KM |
206 | |
207 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
a6052154 JN |
208 | } |
209 | ||
210 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
211 | { | |
212 | debugfs_remove_recursive(card->debugfs_card_root); | |
29040d1a | 213 | card->debugfs_card_root = NULL; |
a6052154 JN |
214 | } |
215 | ||
6553bf06 LPC |
216 | static void snd_soc_debugfs_init(void) |
217 | { | |
218 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); | |
6553bf06 | 219 | |
fee531d6 GKH |
220 | debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
221 | &dai_list_fops); | |
db795f9b | 222 | |
fee531d6 GKH |
223 | debugfs_create_file("components", 0444, snd_soc_debugfs_root, NULL, |
224 | &component_list_fops); | |
6553bf06 LPC |
225 | } |
226 | ||
227 | static void snd_soc_debugfs_exit(void) | |
228 | { | |
229 | debugfs_remove_recursive(snd_soc_debugfs_root); | |
230 | } | |
231 | ||
2624d5fa MB |
232 | #else |
233 | ||
81c7cfd1 LPC |
234 | static inline void soc_init_component_debugfs( |
235 | struct snd_soc_component *component) | |
731f1ab2 SG |
236 | { |
237 | } | |
238 | ||
81c7cfd1 LPC |
239 | static inline void soc_cleanup_component_debugfs( |
240 | struct snd_soc_component *component) | |
731f1ab2 SG |
241 | { |
242 | } | |
243 | ||
b95fccbc AL |
244 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
245 | { | |
246 | } | |
247 | ||
248 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
249 | { | |
250 | } | |
6553bf06 LPC |
251 | |
252 | static inline void snd_soc_debugfs_init(void) | |
253 | { | |
254 | } | |
255 | ||
256 | static inline void snd_soc_debugfs_exit(void) | |
257 | { | |
258 | } | |
259 | ||
2624d5fa MB |
260 | #endif |
261 | ||
12b05232 KM |
262 | static int snd_soc_rtd_add_component(struct snd_soc_pcm_runtime *rtd, |
263 | struct snd_soc_component *component) | |
a0ac4411 | 264 | { |
2b544dd7 | 265 | struct snd_soc_component *comp; |
613fb500 | 266 | int i; |
a0ac4411 | 267 | |
613fb500 | 268 | for_each_rtd_components(rtd, i, comp) { |
a0ac4411 | 269 | /* already connected */ |
2b544dd7 | 270 | if (comp == component) |
a0ac4411 KM |
271 | return 0; |
272 | } | |
273 | ||
613fb500 KM |
274 | /* see for_each_rtd_components */ |
275 | rtd->components[rtd->num_components] = component; | |
276 | rtd->num_components++; | |
a0ac4411 KM |
277 | |
278 | return 0; | |
279 | } | |
280 | ||
a0ac4411 KM |
281 | struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, |
282 | const char *driver_name) | |
283 | { | |
2b544dd7 | 284 | struct snd_soc_component *component; |
613fb500 | 285 | int i; |
a0ac4411 | 286 | |
971da24c KM |
287 | if (!driver_name) |
288 | return NULL; | |
289 | ||
a33c0d16 KM |
290 | /* |
291 | * NOTE | |
292 | * | |
293 | * snd_soc_rtdcom_lookup() will find component from rtd by using | |
294 | * specified driver name. | |
295 | * But, if many components which have same driver name are connected | |
296 | * to 1 rtd, this function will return 1st found component. | |
297 | */ | |
613fb500 | 298 | for_each_rtd_components(rtd, i, component) { |
2b544dd7 | 299 | const char *component_name = component->driver->name; |
971da24c KM |
300 | |
301 | if (!component_name) | |
302 | continue; | |
303 | ||
304 | if ((component_name == driver_name) || | |
305 | strcmp(component_name, driver_name) == 0) | |
613fb500 | 306 | return component; |
a0ac4411 KM |
307 | } |
308 | ||
309 | return NULL; | |
310 | } | |
031734b7 | 311 | EXPORT_SYMBOL_GPL(snd_soc_rtdcom_lookup); |
a0ac4411 | 312 | |
6fbea6b6 | 313 | struct snd_soc_component |
18dd66ea | 314 | *snd_soc_lookup_component_nolocked(struct device *dev, const char *driver_name) |
b8132657 KM |
315 | { |
316 | struct snd_soc_component *component; | |
5bd7e08b | 317 | struct snd_soc_component *found_component; |
b8132657 | 318 | |
5bd7e08b | 319 | found_component = NULL; |
b8132657 | 320 | for_each_component(component) { |
5bd7e08b KM |
321 | if ((dev == component->dev) && |
322 | (!driver_name || | |
323 | (driver_name == component->driver->name) || | |
324 | (strcmp(component->driver->name, driver_name) == 0))) { | |
325 | found_component = component; | |
326 | break; | |
327 | } | |
b8132657 | 328 | } |
b8132657 | 329 | |
5bd7e08b | 330 | return found_component; |
b8132657 | 331 | } |
6fbea6b6 | 332 | EXPORT_SYMBOL_GPL(snd_soc_lookup_component_nolocked); |
18dd66ea KM |
333 | |
334 | struct snd_soc_component *snd_soc_lookup_component(struct device *dev, | |
335 | const char *driver_name) | |
336 | { | |
337 | struct snd_soc_component *component; | |
338 | ||
339 | mutex_lock(&client_mutex); | |
340 | component = snd_soc_lookup_component_nolocked(dev, driver_name); | |
341 | mutex_unlock(&client_mutex); | |
342 | ||
343 | return component; | |
344 | } | |
b8132657 KM |
345 | EXPORT_SYMBOL_GPL(snd_soc_lookup_component); |
346 | ||
94def8ea KM |
347 | struct snd_soc_pcm_runtime |
348 | *snd_soc_get_pcm_runtime(struct snd_soc_card *card, | |
4468189f | 349 | struct snd_soc_dai_link *dai_link) |
94def8ea KM |
350 | { |
351 | struct snd_soc_pcm_runtime *rtd; | |
352 | ||
353 | for_each_card_rtds(card, rtd) { | |
4468189f | 354 | if (rtd->dai_link == dai_link) |
94def8ea KM |
355 | return rtd; |
356 | } | |
4468189f | 357 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link->name); |
94def8ea KM |
358 | return NULL; |
359 | } | |
360 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
361 | ||
83f94a2e KM |
362 | /* |
363 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
364 | * This is to ensure there are no pops or clicks in between any music tracks | |
365 | * due to DAPM power cycling. | |
366 | */ | |
367 | void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) | |
368 | { | |
c2233a26 | 369 | struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
0f6011fd | 370 | int playback = SNDRV_PCM_STREAM_PLAYBACK; |
83f94a2e KM |
371 | |
372 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); | |
373 | ||
374 | dev_dbg(rtd->dev, | |
375 | "ASoC: pop wq checking: %s status: %s waiting: %s\n", | |
376 | codec_dai->driver->playback.stream_name, | |
b3dea624 KM |
377 | snd_soc_dai_stream_active(codec_dai, playback) ? |
378 | "active" : "inactive", | |
83f94a2e KM |
379 | rtd->pop_wait ? "yes" : "no"); |
380 | ||
381 | /* are we waiting on this codec DAI stream */ | |
382 | if (rtd->pop_wait == 1) { | |
383 | rtd->pop_wait = 0; | |
0f6011fd | 384 | snd_soc_dapm_stream_event(rtd, playback, |
83f94a2e KM |
385 | SND_SOC_DAPM_STREAM_STOP); |
386 | } | |
387 | ||
388 | mutex_unlock(&rtd->card->pcm_mutex); | |
389 | } | |
390 | EXPORT_SYMBOL_GPL(snd_soc_close_delayed_work); | |
391 | ||
6e864344 KM |
392 | static void soc_release_rtd_dev(struct device *dev) |
393 | { | |
394 | /* "dev" means "rtd->dev" */ | |
395 | kfree(dev); | |
396 | } | |
397 | ||
1c93a9e0 KM |
398 | static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) |
399 | { | |
6e864344 KM |
400 | if (!rtd) |
401 | return; | |
402 | ||
753ace0a | 403 | list_del(&rtd->list); |
b7c5bc45 | 404 | |
9c9b6520 CM |
405 | if (delayed_work_pending(&rtd->delayed_work)) |
406 | flush_delayed_work(&rtd->delayed_work); | |
0ced7b05 KM |
407 | snd_soc_pcm_component_free(rtd); |
408 | ||
b7c5bc45 KM |
409 | /* |
410 | * we don't need to call kfree() for rtd->dev | |
411 | * see | |
412 | * soc_release_rtd_dev() | |
d918a376 KM |
413 | * |
414 | * We don't need rtd->dev NULL check, because | |
415 | * it is alloced *before* rtd. | |
416 | * see | |
417 | * soc_new_pcm_runtime() | |
b7c5bc45 | 418 | */ |
d918a376 | 419 | device_unregister(rtd->dev); |
1c93a9e0 KM |
420 | } |
421 | ||
4bf2e385 CM |
422 | static void close_delayed_work(struct work_struct *work) { |
423 | struct snd_soc_pcm_runtime *rtd = | |
424 | container_of(work, struct snd_soc_pcm_runtime, | |
425 | delayed_work.work); | |
426 | ||
427 | if (rtd->close_delayed_work_func) | |
428 | rtd->close_delayed_work_func(rtd); | |
429 | } | |
430 | ||
1a497983 ML |
431 | static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( |
432 | struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) | |
433 | { | |
434 | struct snd_soc_pcm_runtime *rtd; | |
613fb500 | 435 | struct snd_soc_component *component; |
d918a376 | 436 | struct device *dev; |
6e864344 | 437 | int ret; |
d74c2a15 | 438 | int stream; |
1a497983 | 439 | |
d918a376 KM |
440 | /* |
441 | * for rtd->dev | |
442 | */ | |
443 | dev = kzalloc(sizeof(struct device), GFP_KERNEL); | |
444 | if (!dev) | |
445 | return NULL; | |
446 | ||
447 | dev->parent = card->dev; | |
448 | dev->release = soc_release_rtd_dev; | |
d918a376 KM |
449 | |
450 | dev_set_name(dev, "%s", dai_link->name); | |
451 | ||
452 | ret = device_register(dev); | |
453 | if (ret < 0) { | |
454 | put_device(dev); /* soc_release_rtd_dev */ | |
455 | return NULL; | |
456 | } | |
457 | ||
6e864344 KM |
458 | /* |
459 | * for rtd | |
460 | */ | |
613fb500 KM |
461 | rtd = devm_kzalloc(dev, |
462 | sizeof(*rtd) + | |
463 | sizeof(*component) * (dai_link->num_cpus + | |
464 | dai_link->num_codecs + | |
465 | dai_link->num_platforms), | |
466 | GFP_KERNEL); | |
1a497983 | 467 | if (!rtd) |
6e864344 | 468 | goto free_rtd; |
1a497983 | 469 | |
d918a376 | 470 | rtd->dev = dev; |
07d22a9b | 471 | INIT_LIST_HEAD(&rtd->list); |
d74c2a15 KM |
472 | for_each_pcm_streams(stream) { |
473 | INIT_LIST_HEAD(&rtd->dpcm[stream].be_clients); | |
474 | INIT_LIST_HEAD(&rtd->dpcm[stream].fe_clients); | |
475 | } | |
d918a376 | 476 | dev_set_drvdata(dev, rtd); |
4bf2e385 | 477 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); |
d918a376 | 478 | |
6e864344 | 479 | /* |
22a2fc81 | 480 | * for rtd->dais |
6e864344 | 481 | */ |
22a2fc81 | 482 | rtd->dais = devm_kcalloc(dev, dai_link->num_cpus + dai_link->num_codecs, |
6396bb22 | 483 | sizeof(struct snd_soc_dai *), |
1a497983 | 484 | GFP_KERNEL); |
22a2fc81 | 485 | if (!rtd->dais) |
6e864344 KM |
486 | goto free_rtd; |
487 | ||
76afa643 | 488 | /* |
22a2fc81 KM |
489 | * dais = [][][][][][][][][][][][][][][][][][] |
490 | * ^cpu_dais ^codec_dais | |
491 | * |--- num_cpus ---|--- num_codecs --| | |
1729025b KM |
492 | * see |
493 | * asoc_rtd_to_cpu() | |
494 | * asoc_rtd_to_codec() | |
76afa643 | 495 | */ |
49648d02 KM |
496 | rtd->num_cpus = dai_link->num_cpus; |
497 | rtd->num_codecs = dai_link->num_codecs; | |
01faf501 KM |
498 | rtd->card = card; |
499 | rtd->dai_link = dai_link; | |
500 | rtd->num = card->num_rtd++; | |
929deb84 | 501 | |
6634e3d6 | 502 | /* see for_each_card_rtds */ |
1a497983 | 503 | list_add_tail(&rtd->list, &card->rtd_list); |
a848125e | 504 | |
5c74c9d3 CK |
505 | ret = device_add_groups(dev, soc_dev_attr_groups); |
506 | if (ret < 0) | |
507 | goto free_rtd; | |
508 | ||
a848125e | 509 | return rtd; |
6e864344 KM |
510 | |
511 | free_rtd: | |
512 | soc_free_pcm_runtime(rtd); | |
513 | return NULL; | |
1a497983 ML |
514 | } |
515 | ||
65462e44 KM |
516 | static void snd_soc_flush_all_delayed_work(struct snd_soc_card *card) |
517 | { | |
518 | struct snd_soc_pcm_runtime *rtd; | |
519 | ||
520 | for_each_card_rtds(card, rtd) | |
521 | flush_delayed_work(&rtd->delayed_work); | |
522 | } | |
523 | ||
6f8ab4ac | 524 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 525 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 526 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 527 | { |
6f8ab4ac | 528 | struct snd_soc_card *card = dev_get_drvdata(dev); |
d9fc4063 | 529 | struct snd_soc_component *component; |
1a497983 | 530 | struct snd_soc_pcm_runtime *rtd; |
0f6011fd | 531 | int playback = SNDRV_PCM_STREAM_PLAYBACK; |
1a497983 | 532 | int i; |
db2a4165 | 533 | |
c5599b87 LPC |
534 | /* If the card is not initialized yet there is nothing to do */ |
535 | if (!card->instantiated) | |
e3509ff0 DM |
536 | return 0; |
537 | ||
2c7b696a MZ |
538 | /* |
539 | * Due to the resume being scheduled into a workqueue we could | |
540 | * suspend before that's finished - wait for it to complete. | |
6ed25978 | 541 | */ |
f0fba2ad | 542 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
543 | |
544 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 545 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 546 | |
a00f90f9 | 547 | /* mute any active DACs */ |
bcb1fd1f | 548 | for_each_card_rtds(card, rtd) { |
0b7990e3 | 549 | struct snd_soc_dai *dai; |
3efab7dc | 550 | |
1a497983 | 551 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
552 | continue; |
553 | ||
a0234d0e | 554 | for_each_rtd_dais(rtd, i, dai) { |
b3dea624 | 555 | if (snd_soc_dai_stream_active(dai, playback)) |
0f6011fd | 556 | snd_soc_dai_digital_mute(dai, 1, playback); |
88bd870f | 557 | } |
db2a4165 FM |
558 | } |
559 | ||
4ccab3e7 | 560 | /* suspend all pcms */ |
bcb1fd1f | 561 | for_each_card_rtds(card, rtd) { |
1a497983 | 562 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
563 | continue; |
564 | ||
1a497983 | 565 | snd_pcm_suspend_all(rtd->pcm); |
3efab7dc | 566 | } |
4ccab3e7 | 567 | |
130dc08c | 568 | snd_soc_card_suspend_pre(card); |
db2a4165 | 569 | |
37660b6d | 570 | /* close any waiting streams */ |
65462e44 | 571 | snd_soc_flush_all_delayed_work(card); |
db2a4165 | 572 | |
bcb1fd1f | 573 | for_each_card_rtds(card, rtd) { |
d74c2a15 | 574 | int stream; |
3efab7dc | 575 | |
1a497983 | 576 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
577 | continue; |
578 | ||
d74c2a15 KM |
579 | for_each_pcm_streams(stream) |
580 | snd_soc_dapm_stream_event(rtd, stream, | |
581 | SND_SOC_DAPM_STREAM_SUSPEND); | |
db2a4165 FM |
582 | } |
583 | ||
8be4da29 LPC |
584 | /* Recheck all endpoints too, their state is affected by suspend */ |
585 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
586 | snd_soc_dapm_sync(&card->dapm); |
587 | ||
9178feb4 | 588 | /* suspend all COMPONENTs */ |
1272063a KM |
589 | for_each_card_rtds(card, rtd) { |
590 | ||
591 | if (rtd->dai_link->ignore_suspend) | |
592 | continue; | |
593 | ||
594 | for_each_rtd_components(rtd, i, component) { | |
595 | struct snd_soc_dapm_context *dapm = | |
2c7b696a | 596 | snd_soc_component_get_dapm(component); |
d9fc4063 | 597 | |
1272063a KM |
598 | /* |
599 | * ignore if component was already suspended | |
600 | */ | |
601 | if (snd_soc_component_is_suspended(component)) | |
602 | continue; | |
603 | ||
604 | /* | |
605 | * If there are paths active then the COMPONENT will be | |
606 | * held with bias _ON and should not be suspended. | |
607 | */ | |
4890140f | 608 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
f0fba2ad | 609 | case SND_SOC_BIAS_STANDBY: |
125a25da | 610 | /* |
9178feb4 | 611 | * If the COMPONENT is capable of idle |
125a25da MB |
612 | * bias off then being in STANDBY |
613 | * means it's doing something, | |
614 | * otherwise fall through. | |
615 | */ | |
4890140f | 616 | if (dapm->idle_bias_off) { |
9178feb4 | 617 | dev_dbg(component->dev, |
10e8aa9a | 618 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
619 | break; |
620 | } | |
1a12d5dc | 621 | /* fall through */ |
a8093297 | 622 | |
f0fba2ad | 623 | case SND_SOC_BIAS_OFF: |
66c51573 | 624 | snd_soc_component_suspend(component); |
9178feb4 KM |
625 | if (component->regmap) |
626 | regcache_mark_dirty(component->regmap); | |
988e8cc4 | 627 | /* deactivate pins to sleep state */ |
9178feb4 | 628 | pinctrl_pm_select_sleep_state(component->dev); |
f0fba2ad LG |
629 | break; |
630 | default: | |
9178feb4 KM |
631 | dev_dbg(component->dev, |
632 | "ASoC: COMPONENT is on over suspend\n"); | |
f0fba2ad LG |
633 | break; |
634 | } | |
1547aba9 MB |
635 | } |
636 | } | |
db2a4165 | 637 | |
d17b60b2 | 638 | snd_soc_card_suspend_post(card); |
db2a4165 FM |
639 | |
640 | return 0; | |
641 | } | |
6f8ab4ac | 642 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 643 | |
2c7b696a MZ |
644 | /* |
645 | * deferred resume work, so resume can complete before we finished | |
6ed25978 AG |
646 | * setting our codec back up, which can be very slow on I2C |
647 | */ | |
648 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 649 | { |
f0fba2ad | 650 | struct snd_soc_card *card = |
2c7b696a MZ |
651 | container_of(work, struct snd_soc_card, |
652 | deferred_resume_work); | |
1a497983 | 653 | struct snd_soc_pcm_runtime *rtd; |
d9fc4063 | 654 | struct snd_soc_component *component; |
1a497983 | 655 | int i; |
db2a4165 | 656 | |
2c7b696a MZ |
657 | /* |
658 | * our power state is still SNDRV_CTL_POWER_D3hot from suspend time, | |
6ed25978 AG |
659 | * so userspace apps are blocked from touching us |
660 | */ | |
661 | ||
f110bfc7 | 662 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 663 | |
9949788b | 664 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 665 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 666 | |
934c752c | 667 | snd_soc_card_resume_pre(card); |
db2a4165 | 668 | |
f70f18f7 | 669 | for_each_card_components(card, component) { |
e40fadbc | 670 | if (snd_soc_component_is_suspended(component)) |
9a840cba | 671 | snd_soc_component_resume(component); |
1547aba9 | 672 | } |
db2a4165 | 673 | |
bcb1fd1f | 674 | for_each_card_rtds(card, rtd) { |
d74c2a15 | 675 | int stream; |
3efab7dc | 676 | |
1a497983 | 677 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
678 | continue; |
679 | ||
d74c2a15 KM |
680 | for_each_pcm_streams(stream) |
681 | snd_soc_dapm_stream_event(rtd, stream, | |
682 | SND_SOC_DAPM_STREAM_RESUME); | |
db2a4165 FM |
683 | } |
684 | ||
3ff3f64b | 685 | /* unmute any active DACs */ |
bcb1fd1f | 686 | for_each_card_rtds(card, rtd) { |
0b7990e3 | 687 | struct snd_soc_dai *dai; |
0f6011fd | 688 | int playback = SNDRV_PCM_STREAM_PLAYBACK; |
3efab7dc | 689 | |
1a497983 | 690 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
691 | continue; |
692 | ||
a0234d0e | 693 | for_each_rtd_dais(rtd, i, dai) { |
b3dea624 | 694 | if (snd_soc_dai_stream_active(dai, playback)) |
0f6011fd | 695 | snd_soc_dai_digital_mute(dai, 0, playback); |
88bd870f | 696 | } |
db2a4165 FM |
697 | } |
698 | ||
739443d1 | 699 | snd_soc_card_resume_post(card); |
db2a4165 | 700 | |
f110bfc7 | 701 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 | 702 | |
8be4da29 LPC |
703 | /* Recheck all endpoints too, their state is affected by suspend */ |
704 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 705 | snd_soc_dapm_sync(&card->dapm); |
1a7aaa58 JK |
706 | |
707 | /* userspace can access us now we are back as we were before */ | |
708 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); | |
6ed25978 AG |
709 | } |
710 | ||
711 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 712 | int snd_soc_resume(struct device *dev) |
6ed25978 | 713 | { |
6f8ab4ac | 714 | struct snd_soc_card *card = dev_get_drvdata(dev); |
76c39e86 | 715 | struct snd_soc_component *component; |
b9dd94a8 | 716 | |
c5599b87 LPC |
717 | /* If the card is not initialized yet there is nothing to do */ |
718 | if (!card->instantiated) | |
5ff1ddf2 EM |
719 | return 0; |
720 | ||
988e8cc4 | 721 | /* activate pins from sleep state */ |
76c39e86 | 722 | for_each_card_components(card, component) |
b3dea624 | 723 | if (snd_soc_component_active(component)) |
76c39e86 | 724 | pinctrl_pm_select_default_state(component->dev); |
988e8cc4 | 725 | |
250a15cf KM |
726 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
727 | if (!schedule_work(&card->deferred_resume_work)) | |
728 | dev_err(dev, "ASoC: resume work item may be lost\n"); | |
6ed25978 | 729 | |
db2a4165 FM |
730 | return 0; |
731 | } | |
6f8ab4ac | 732 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
b3da4251 KM |
733 | |
734 | static void soc_resume_init(struct snd_soc_card *card) | |
735 | { | |
736 | /* deferred resume work */ | |
737 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
738 | } | |
db2a4165 | 739 | #else |
6f8ab4ac MB |
740 | #define snd_soc_suspend NULL |
741 | #define snd_soc_resume NULL | |
b3da4251 KM |
742 | static inline void soc_resume_init(struct snd_soc_card *card) |
743 | { | |
744 | } | |
db2a4165 FM |
745 | #endif |
746 | ||
c0834440 KM |
747 | static struct device_node |
748 | *soc_component_to_node(struct snd_soc_component *component) | |
12023a9a | 749 | { |
c0834440 | 750 | struct device_node *of_node; |
12023a9a | 751 | |
c0834440 KM |
752 | of_node = component->dev->of_node; |
753 | if (!of_node && component->dev->parent) | |
754 | of_node = component->dev->parent->of_node; | |
12023a9a | 755 | |
c0834440 | 756 | return of_node; |
12023a9a MLC |
757 | } |
758 | ||
be6ac0a9 KM |
759 | static int snd_soc_is_matching_component( |
760 | const struct snd_soc_dai_link_component *dlc, | |
761 | struct snd_soc_component *component) | |
762 | { | |
763 | struct device_node *component_of_node; | |
764 | ||
7d7db5d3 KM |
765 | if (!dlc) |
766 | return 0; | |
767 | ||
768 | component_of_node = soc_component_to_node(component); | |
be6ac0a9 KM |
769 | |
770 | if (dlc->of_node && component_of_node != dlc->of_node) | |
771 | return 0; | |
772 | if (dlc->name && strcmp(component->name, dlc->name)) | |
773 | return 0; | |
774 | ||
775 | return 1; | |
776 | } | |
777 | ||
65d9361f | 778 | static struct snd_soc_component *soc_find_component( |
c1e230f0 | 779 | const struct snd_soc_dai_link_component *dlc) |
12023a9a | 780 | { |
65d9361f | 781 | struct snd_soc_component *component; |
12023a9a | 782 | |
34e81ab4 LPC |
783 | lockdep_assert_held(&client_mutex); |
784 | ||
e3303268 KM |
785 | /* |
786 | * NOTE | |
787 | * | |
788 | * It returns *1st* found component, but some driver | |
789 | * has few components by same of_node/name | |
790 | * ex) | |
791 | * CPU component and generic DMAEngine component | |
792 | */ | |
c1e230f0 KM |
793 | for_each_component(component) |
794 | if (snd_soc_is_matching_component(dlc, component)) | |
65d9361f | 795 | return component; |
12023a9a MLC |
796 | |
797 | return NULL; | |
798 | } | |
799 | ||
fbb88b5c ML |
800 | /** |
801 | * snd_soc_find_dai - Find a registered DAI | |
802 | * | |
4958471b | 803 | * @dlc: name of the DAI or the DAI driver and optional component info to match |
fbb88b5c | 804 | * |
ad61dd30 | 805 | * This function will search all registered components and their DAIs to |
fbb88b5c ML |
806 | * find the DAI of the same name. The component's of_node and name |
807 | * should also match if being specified. | |
808 | * | |
809 | * Return: pointer of DAI, or NULL if not found. | |
810 | */ | |
305e9020 | 811 | struct snd_soc_dai *snd_soc_find_dai( |
14621c7e | 812 | const struct snd_soc_dai_link_component *dlc) |
12023a9a | 813 | { |
14621c7e LPC |
814 | struct snd_soc_component *component; |
815 | struct snd_soc_dai *dai; | |
12023a9a | 816 | |
34e81ab4 LPC |
817 | lockdep_assert_held(&client_mutex); |
818 | ||
2c7b696a | 819 | /* Find CPU DAI from registered DAIs */ |
368dee94 | 820 | for_each_component(component) { |
be6ac0a9 | 821 | if (!snd_soc_is_matching_component(dlc, component)) |
14621c7e | 822 | continue; |
15a0c645 | 823 | for_each_component_dais(component, dai) { |
4958471b | 824 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) |
6a6dafda JC |
825 | && (!dai->driver->name |
826 | || strcmp(dai->driver->name, dlc->dai_name))) | |
12023a9a | 827 | continue; |
12023a9a | 828 | |
14621c7e | 829 | return dai; |
12023a9a MLC |
830 | } |
831 | } | |
832 | ||
833 | return NULL; | |
834 | } | |
305e9020 | 835 | EXPORT_SYMBOL_GPL(snd_soc_find_dai); |
12023a9a | 836 | |
bfce78a5 KM |
837 | static int soc_dai_link_sanity_check(struct snd_soc_card *card, |
838 | struct snd_soc_dai_link *link) | |
36794902 KM |
839 | { |
840 | int i; | |
76afa643 | 841 | struct snd_soc_dai_link_component *cpu, *codec, *platform; |
36794902 KM |
842 | |
843 | for_each_link_codecs(link, i, codec) { | |
844 | /* | |
845 | * Codec must be specified by 1 of name or OF node, | |
846 | * not both or neither. | |
847 | */ | |
848 | if (!!codec->name == !!codec->of_node) { | |
849 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
850 | link->name); | |
851 | return -EINVAL; | |
852 | } | |
853 | ||
854 | /* Codec DAI name must be specified */ | |
855 | if (!codec->dai_name) { | |
856 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
857 | link->name); | |
858 | return -EINVAL; | |
859 | } | |
860 | ||
861 | /* | |
862 | * Defer card registration if codec component is not added to | |
863 | * component list. | |
864 | */ | |
b2acc24c RS |
865 | if (!soc_find_component(codec)) { |
866 | dev_dbg(card->dev, | |
867 | "ASoC: codec component %s not found for link %s\n", | |
868 | codec->name, link->name); | |
36794902 | 869 | return -EPROBE_DEFER; |
b2acc24c | 870 | } |
36794902 KM |
871 | } |
872 | ||
873 | for_each_link_platforms(link, i, platform) { | |
874 | /* | |
875 | * Platform may be specified by either name or OF node, but it | |
876 | * can be left unspecified, then no components will be inserted | |
877 | * in the rtdcom list | |
878 | */ | |
879 | if (!!platform->name == !!platform->of_node) { | |
880 | dev_err(card->dev, | |
881 | "ASoC: Neither/both platform name/of_node are set for %s\n", | |
882 | link->name); | |
883 | return -EINVAL; | |
884 | } | |
885 | ||
886 | /* | |
887 | * Defer card registration if platform component is not added to | |
888 | * component list. | |
889 | */ | |
b2acc24c RS |
890 | if (!soc_find_component(platform)) { |
891 | dev_dbg(card->dev, | |
892 | "ASoC: platform component %s not found for link %s\n", | |
893 | platform->name, link->name); | |
36794902 | 894 | return -EPROBE_DEFER; |
b2acc24c | 895 | } |
36794902 KM |
896 | } |
897 | ||
76afa643 SN |
898 | for_each_link_cpus(link, i, cpu) { |
899 | /* | |
900 | * CPU device may be specified by either name or OF node, but | |
901 | * can be left unspecified, and will be matched based on DAI | |
902 | * name alone.. | |
903 | */ | |
904 | if (cpu->name && cpu->of_node) { | |
905 | dev_err(card->dev, | |
906 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
907 | link->name); | |
908 | return -EINVAL; | |
909 | } | |
36794902 | 910 | |
76afa643 SN |
911 | /* |
912 | * Defer card registration if cpu dai component is not added to | |
913 | * component list. | |
914 | */ | |
915 | if ((cpu->of_node || cpu->name) && | |
b2acc24c RS |
916 | !soc_find_component(cpu)) { |
917 | dev_dbg(card->dev, | |
918 | "ASoC: cpu component %s not found for link %s\n", | |
919 | cpu->name, link->name); | |
76afa643 | 920 | return -EPROBE_DEFER; |
b2acc24c | 921 | } |
36794902 | 922 | |
76afa643 SN |
923 | /* |
924 | * At least one of CPU DAI name or CPU device name/node must be | |
925 | * specified | |
926 | */ | |
927 | if (!cpu->dai_name && | |
928 | !(cpu->name || cpu->of_node)) { | |
929 | dev_err(card->dev, | |
930 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
931 | link->name); | |
932 | return -EINVAL; | |
933 | } | |
36794902 KM |
934 | } |
935 | ||
936 | return 0; | |
937 | } | |
938 | ||
da704f26 | 939 | /** |
50cd9b53 KM |
940 | * snd_soc_remove_pcm_runtime - Remove a pcm_runtime from card |
941 | * @card: The ASoC card to which the pcm_runtime has | |
942 | * @rtd: The pcm_runtime to remove | |
da704f26 | 943 | * |
50cd9b53 | 944 | * This function removes a pcm_runtime from the ASoC card. |
da704f26 | 945 | */ |
50cd9b53 KM |
946 | void snd_soc_remove_pcm_runtime(struct snd_soc_card *card, |
947 | struct snd_soc_pcm_runtime *rtd) | |
bc7a9091 | 948 | { |
da704f26 KM |
949 | lockdep_assert_held(&client_mutex); |
950 | ||
21a00fb3 PLB |
951 | /* release machine specific resources */ |
952 | snd_soc_link_exit(rtd); | |
953 | ||
da704f26 KM |
954 | /* |
955 | * Notify the machine driver for extra destruction | |
956 | */ | |
fcbbcc32 | 957 | snd_soc_card_remove_dai_link(card, rtd->dai_link); |
da704f26 | 958 | |
50cd9b53 | 959 | soc_free_pcm_runtime(rtd); |
bc7a9091 | 960 | } |
50cd9b53 | 961 | EXPORT_SYMBOL_GPL(snd_soc_remove_pcm_runtime); |
bc7a9091 | 962 | |
63dc47da | 963 | /** |
0c048004 KM |
964 | * snd_soc_add_pcm_runtime - Add a pcm_runtime dynamically via dai_link |
965 | * @card: The ASoC card to which the pcm_runtime is added | |
966 | * @dai_link: The DAI link to find pcm_runtime | |
63dc47da | 967 | * |
0c048004 | 968 | * This function adds a pcm_runtime ASoC card by using dai_link. |
63dc47da | 969 | * |
0c048004 | 970 | * Note: Topology can use this API to add pcm_runtime when probing the |
63dc47da KM |
971 | * topology component. And machine drivers can still define static |
972 | * DAI links in dai_link array. | |
973 | */ | |
0c048004 KM |
974 | int snd_soc_add_pcm_runtime(struct snd_soc_card *card, |
975 | struct snd_soc_dai_link *dai_link) | |
db2a4165 | 976 | { |
1a497983 | 977 | struct snd_soc_pcm_runtime *rtd; |
76afa643 | 978 | struct snd_soc_dai_link_component *codec, *platform, *cpu; |
90be711e | 979 | struct snd_soc_component *component; |
bfce78a5 | 980 | int i, ret; |
435c5e25 | 981 | |
63dc47da KM |
982 | lockdep_assert_held(&client_mutex); |
983 | ||
984 | /* | |
985 | * Notify the machine driver for extra initialization | |
986 | */ | |
cbc7a6b5 KM |
987 | ret = snd_soc_card_add_dai_link(card, dai_link); |
988 | if (ret < 0) | |
989 | return ret; | |
63dc47da | 990 | |
a655de80 LG |
991 | if (dai_link->ignore) |
992 | return 0; | |
993 | ||
6f2f1ff0 | 994 | dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); |
435c5e25 | 995 | |
bfce78a5 KM |
996 | ret = soc_dai_link_sanity_check(card, dai_link); |
997 | if (ret < 0) | |
998 | return ret; | |
999 | ||
513cb311 SM |
1000 | rtd = soc_new_pcm_runtime(card, dai_link); |
1001 | if (!rtd) | |
1002 | return -ENOMEM; | |
1003 | ||
76afa643 | 1004 | for_each_link_cpus(dai_link, i, cpu) { |
c2233a26 KM |
1005 | asoc_rtd_to_cpu(rtd, i) = snd_soc_find_dai(cpu); |
1006 | if (!asoc_rtd_to_cpu(rtd, i)) { | |
76afa643 SN |
1007 | dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", |
1008 | cpu->dai_name); | |
1009 | goto _err_defer; | |
1010 | } | |
c2233a26 | 1011 | snd_soc_rtd_add_component(rtd, asoc_rtd_to_cpu(rtd, i)->component); |
f0fba2ad | 1012 | } |
76afa643 | 1013 | |
88bd870f | 1014 | /* Find CODEC from registered CODECs */ |
34614739 | 1015 | for_each_link_codecs(dai_link, i, codec) { |
c2233a26 KM |
1016 | asoc_rtd_to_codec(rtd, i) = snd_soc_find_dai(codec); |
1017 | if (!asoc_rtd_to_codec(rtd, i)) { | |
7c7e2d6a | 1018 | dev_info(card->dev, "ASoC: CODEC DAI %s not registered\n", |
34614739 | 1019 | codec->dai_name); |
1a497983 | 1020 | goto _err_defer; |
88bd870f | 1021 | } |
34614739 | 1022 | |
c2233a26 | 1023 | snd_soc_rtd_add_component(rtd, asoc_rtd_to_codec(rtd, i)->component); |
12023a9a MLC |
1024 | } |
1025 | ||
e2b30edf | 1026 | /* Find PLATFORM from registered PLATFORMs */ |
34614739 JB |
1027 | for_each_link_platforms(dai_link, i, platform) { |
1028 | for_each_component(component) { | |
1029 | if (!snd_soc_is_matching_component(platform, component)) | |
1030 | continue; | |
90be711e | 1031 | |
12b05232 | 1032 | snd_soc_rtd_add_component(rtd, component); |
34614739 | 1033 | } |
90be711e KM |
1034 | } |
1035 | ||
b19e6e7b | 1036 | return 0; |
1a497983 ML |
1037 | |
1038 | _err_defer: | |
50cd9b53 | 1039 | snd_soc_remove_pcm_runtime(card, rtd); |
2c7b696a | 1040 | return -EPROBE_DEFER; |
f0fba2ad | 1041 | } |
0c048004 | 1042 | EXPORT_SYMBOL_GPL(snd_soc_add_pcm_runtime); |
f0fba2ad | 1043 | |
eaffeefb KM |
1044 | static int soc_init_pcm_runtime(struct snd_soc_card *card, |
1045 | struct snd_soc_pcm_runtime *rtd) | |
46496acb KM |
1046 | { |
1047 | struct snd_soc_dai_link *dai_link = rtd->dai_link; | |
c2233a26 | 1048 | struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
46496acb | 1049 | struct snd_soc_component *component; |
613fb500 | 1050 | int ret, num, i; |
46496acb KM |
1051 | |
1052 | /* set default power off timeout */ | |
1053 | rtd->pmdown_time = pmdown_time; | |
1054 | ||
1055 | /* do machine specific initialization */ | |
02e75636 KM |
1056 | ret = snd_soc_link_init(rtd); |
1057 | if (ret < 0) | |
1058 | return ret; | |
46496acb KM |
1059 | |
1060 | if (dai_link->dai_fmt) { | |
1061 | ret = snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1062 | if (ret) | |
1063 | return ret; | |
1064 | } | |
1065 | ||
1066 | /* add DPCM sysfs entries */ | |
1067 | soc_dpcm_debugfs_add(rtd); | |
1068 | ||
1069 | num = rtd->num; | |
1070 | ||
1071 | /* | |
1072 | * most drivers will register their PCMs using DAI link ordering but | |
1073 | * topology based drivers can use the DAI link id field to set PCM | |
1074 | * device number and then use rtd + a base offset of the BEs. | |
1075 | */ | |
613fb500 | 1076 | for_each_rtd_components(rtd, i, component) { |
46496acb KM |
1077 | if (!component->driver->use_dai_pcm_id) |
1078 | continue; | |
1079 | ||
1080 | if (rtd->dai_link->no_pcm) | |
1081 | num += component->driver->be_pcm_base; | |
1082 | else | |
1083 | num = rtd->dai_link->id; | |
1084 | } | |
1085 | ||
1086 | /* create compress_device if possible */ | |
1087 | ret = snd_soc_dai_compress_new(cpu_dai, rtd, num); | |
1088 | if (ret != -ENOTSUPP) { | |
1089 | if (ret < 0) | |
1090 | dev_err(card->dev, "ASoC: can't create compress %s\n", | |
1091 | dai_link->stream_name); | |
1092 | return ret; | |
1093 | } | |
1094 | ||
1095 | /* create the pcm */ | |
1096 | ret = soc_new_pcm(rtd, num); | |
1097 | if (ret < 0) { | |
1098 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", | |
1099 | dai_link->stream_name, ret); | |
1100 | return ret; | |
1101 | } | |
d1eb6d11 | 1102 | |
0b73ba55 | 1103 | return snd_soc_pcm_dai_new(rtd); |
46496acb KM |
1104 | } |
1105 | ||
ffd60fba KM |
1106 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1107 | struct snd_soc_component *component) | |
1108 | { | |
aec3ff99 | 1109 | struct device_node *of_node = soc_component_to_node(component); |
29d9fc7a KM |
1110 | const char *str; |
1111 | int ret, i; | |
ffd60fba | 1112 | |
4702f991 | 1113 | for (i = 0; i < card->num_configs; i++) { |
ffd60fba | 1114 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; |
ffd60fba | 1115 | |
c13493a2 KM |
1116 | if (snd_soc_is_matching_component(&map->dlc, component)) { |
1117 | component->name_prefix = map->name_prefix; | |
1118 | return; | |
1119 | } | |
ffd60fba KM |
1120 | } |
1121 | ||
1122 | /* | |
1123 | * If there is no configuration table or no match in the table, | |
1124 | * check if a prefix is provided in the node | |
1125 | */ | |
29d9fc7a KM |
1126 | ret = of_property_read_string(of_node, "sound-name-prefix", &str); |
1127 | if (ret < 0) | |
1128 | return; | |
1129 | ||
1130 | component->name_prefix = str; | |
ffd60fba KM |
1131 | } |
1132 | ||
c6619b72 KM |
1133 | static void soc_remove_component(struct snd_soc_component *component, |
1134 | int probed) | |
22d14231 | 1135 | { |
c6619b72 KM |
1136 | |
1137 | if (!component->card) | |
1138 | return; | |
1139 | ||
1140 | if (probed) | |
1141 | snd_soc_component_remove(component); | |
1142 | ||
04f770d9 | 1143 | /* For framework level robustness */ |
3bb936f5 | 1144 | snd_soc_component_set_jack(component, NULL, NULL); |
04f770d9 | 1145 | |
7a5d9815 | 1146 | list_del_init(&component->card_list); |
22d14231 KM |
1147 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
1148 | soc_cleanup_component_debugfs(component); | |
1149 | component->card = NULL; | |
0e36f36b | 1150 | snd_soc_component_module_put_when_remove(component); |
22d14231 KM |
1151 | } |
1152 | ||
ffd60fba KM |
1153 | static int soc_probe_component(struct snd_soc_card *card, |
1154 | struct snd_soc_component *component) | |
1155 | { | |
1156 | struct snd_soc_dapm_context *dapm = | |
1157 | snd_soc_component_get_dapm(component); | |
1158 | struct snd_soc_dai *dai; | |
c6619b72 | 1159 | int probed = 0; |
ffd60fba KM |
1160 | int ret; |
1161 | ||
1162 | if (!strcmp(component->name, "snd-soc-dummy")) | |
1163 | return 0; | |
1164 | ||
1165 | if (component->card) { | |
1166 | if (component->card != card) { | |
1167 | dev_err(component->dev, | |
1168 | "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", | |
1169 | card->name, component->card->name); | |
1170 | return -ENODEV; | |
1171 | } | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | ret = snd_soc_component_module_get_when_probe(component); | |
1176 | if (ret < 0) | |
1177 | return ret; | |
1178 | ||
1179 | component->card = card; | |
ffd60fba KM |
1180 | soc_set_name_prefix(card, component); |
1181 | ||
1182 | soc_init_component_debugfs(component); | |
1183 | ||
95c267dd | 1184 | snd_soc_dapm_init(dapm, card, component); |
b614beaf | 1185 | |
ffd60fba KM |
1186 | ret = snd_soc_dapm_new_controls(dapm, |
1187 | component->driver->dapm_widgets, | |
1188 | component->driver->num_dapm_widgets); | |
1189 | ||
1190 | if (ret != 0) { | |
1191 | dev_err(component->dev, | |
1192 | "Failed to create new controls %d\n", ret); | |
1193 | goto err_probe; | |
1194 | } | |
1195 | ||
1196 | for_each_component_dais(component, dai) { | |
1197 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
1198 | if (ret != 0) { | |
1199 | dev_err(component->dev, | |
1200 | "Failed to create DAI widgets %d\n", ret); | |
1201 | goto err_probe; | |
1202 | } | |
1203 | } | |
1204 | ||
1205 | ret = snd_soc_component_probe(component); | |
1206 | if (ret < 0) { | |
1207 | dev_err(component->dev, | |
1208 | "ASoC: failed to probe component %d\n", ret); | |
1209 | goto err_probe; | |
1210 | } | |
1211 | WARN(dapm->idle_bias_off && | |
1212 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1213 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1214 | component->name); | |
c6619b72 | 1215 | probed = 1; |
ffd60fba | 1216 | |
257c4dac KM |
1217 | /* |
1218 | * machine specific init | |
1219 | * see | |
1220 | * snd_soc_component_set_aux() | |
1221 | */ | |
1222 | ret = snd_soc_component_init(component); | |
1223 | if (ret < 0) | |
1224 | goto err_probe; | |
ffd60fba KM |
1225 | |
1226 | ret = snd_soc_add_component_controls(component, | |
1227 | component->driver->controls, | |
1228 | component->driver->num_controls); | |
1229 | if (ret < 0) | |
1230 | goto err_probe; | |
1231 | ||
1232 | ret = snd_soc_dapm_add_routes(dapm, | |
1233 | component->driver->dapm_routes, | |
1234 | component->driver->num_dapm_routes); | |
a22ae72b PLB |
1235 | if (ret < 0) { |
1236 | if (card->disable_route_checks) { | |
1237 | dev_info(card->dev, | |
1238 | "%s: disable_route_checks set, ignoring errors on add_routes\n", | |
1239 | __func__); | |
1240 | } else { | |
1241 | dev_err(card->dev, | |
1242 | "%s: snd_soc_dapm_add_routes failed: %d\n", | |
1243 | __func__, ret); | |
1244 | goto err_probe; | |
1245 | } | |
1246 | } | |
ffd60fba | 1247 | |
ffd60fba KM |
1248 | /* see for_each_card_components */ |
1249 | list_add(&component->card_list, &card->component_dev_list); | |
1250 | ||
1251 | err_probe: | |
1252 | if (ret < 0) | |
c6619b72 | 1253 | soc_remove_component(component, probed); |
ffd60fba KM |
1254 | |
1255 | return ret; | |
1256 | } | |
1257 | ||
4ca47d21 | 1258 | static void soc_remove_link_dais(struct snd_soc_card *card) |
b0aa88af | 1259 | { |
4ca47d21 KM |
1260 | struct snd_soc_pcm_runtime *rtd; |
1261 | int order; | |
1262 | ||
1263 | for_each_comp_order(order) { | |
1264 | for_each_card_rtds(card, rtd) { | |
7eaa313b KM |
1265 | /* remove all rtd connected DAIs in good order */ |
1266 | snd_soc_pcm_dai_remove(rtd, order); | |
4ca47d21 KM |
1267 | } |
1268 | } | |
f0fba2ad | 1269 | } |
db2a4165 | 1270 | |
bc7c16c2 KM |
1271 | static int soc_probe_link_dais(struct snd_soc_card *card) |
1272 | { | |
bc7c16c2 | 1273 | struct snd_soc_pcm_runtime *rtd; |
51801aea | 1274 | int order, ret; |
bc7c16c2 KM |
1275 | |
1276 | for_each_comp_order(order) { | |
1277 | for_each_card_rtds(card, rtd) { | |
1278 | ||
1279 | dev_dbg(card->dev, | |
1280 | "ASoC: probe %s dai link %d late %d\n", | |
1281 | card->name, rtd->num, order); | |
1282 | ||
51801aea KM |
1283 | /* probe all rtd connected DAIs in good order */ |
1284 | ret = snd_soc_pcm_dai_probe(rtd, order); | |
1285 | if (ret) | |
1286 | return ret; | |
bc7c16c2 KM |
1287 | } |
1288 | } | |
1289 | ||
1290 | return 0; | |
1291 | } | |
1292 | ||
b006c0c6 | 1293 | static void soc_remove_link_components(struct snd_soc_card *card) |
62ae68fa | 1294 | { |
61aca564 | 1295 | struct snd_soc_component *component; |
b006c0c6 | 1296 | struct snd_soc_pcm_runtime *rtd; |
613fb500 | 1297 | int i, order; |
62ae68fa | 1298 | |
b006c0c6 KM |
1299 | for_each_comp_order(order) { |
1300 | for_each_card_rtds(card, rtd) { | |
613fb500 | 1301 | for_each_rtd_components(rtd, i, component) { |
b006c0c6 KM |
1302 | if (component->driver->remove_order != order) |
1303 | continue; | |
62ae68fa | 1304 | |
c6619b72 | 1305 | soc_remove_component(component, 1); |
b006c0c6 KM |
1306 | } |
1307 | } | |
62ae68fa | 1308 | } |
62ae68fa SW |
1309 | } |
1310 | ||
62f07a6b | 1311 | static int soc_probe_link_components(struct snd_soc_card *card) |
6fb03550 KM |
1312 | { |
1313 | struct snd_soc_component *component; | |
62f07a6b | 1314 | struct snd_soc_pcm_runtime *rtd; |
613fb500 | 1315 | int i, ret, order; |
6fb03550 | 1316 | |
62f07a6b KM |
1317 | for_each_comp_order(order) { |
1318 | for_each_card_rtds(card, rtd) { | |
613fb500 | 1319 | for_each_rtd_components(rtd, i, component) { |
62f07a6b KM |
1320 | if (component->driver->probe_order != order) |
1321 | continue; | |
1322 | ||
1323 | ret = soc_probe_component(card, component); | |
1324 | if (ret < 0) | |
1325 | return ret; | |
1326 | } | |
6fb03550 KM |
1327 | } |
1328 | } | |
1329 | ||
1330 | return 0; | |
1331 | } | |
1332 | ||
e8fbd250 | 1333 | static void soc_unbind_aux_dev(struct snd_soc_card *card) |
4893a2eb | 1334 | { |
e8fbd250 KM |
1335 | struct snd_soc_component *component, *_component; |
1336 | ||
1337 | for_each_card_auxs_safe(card, component, _component) { | |
257c4dac KM |
1338 | /* for snd_soc_component_init() */ |
1339 | snd_soc_component_set_aux(component, NULL); | |
e8fbd250 KM |
1340 | list_del(&component->card_aux_list); |
1341 | } | |
4893a2eb KM |
1342 | } |
1343 | ||
bee886f1 | 1344 | static int soc_bind_aux_dev(struct snd_soc_card *card) |
3ca041ed | 1345 | { |
f2ed6b07 | 1346 | struct snd_soc_component *component; |
bee886f1 KM |
1347 | struct snd_soc_aux_dev *aux; |
1348 | int i; | |
3dc29b8b | 1349 | |
bee886f1 KM |
1350 | for_each_card_pre_auxs(card, i, aux) { |
1351 | /* codecs, usually analog devices */ | |
1352 | component = soc_find_component(&aux->dlc); | |
1353 | if (!component) | |
1354 | return -EPROBE_DEFER; | |
1a653aa4 | 1355 | |
257c4dac KM |
1356 | /* for snd_soc_component_init() */ |
1357 | snd_soc_component_set_aux(component, aux); | |
bee886f1 KM |
1358 | /* see for_each_card_auxs */ |
1359 | list_add(&component->card_aux_list, &card->aux_comp_list); | |
1360 | } | |
44c69bb1 | 1361 | return 0; |
b19e6e7b MB |
1362 | } |
1363 | ||
f2ed6b07 | 1364 | static int soc_probe_aux_devices(struct snd_soc_card *card) |
2eea392d | 1365 | { |
74bd3f92 | 1366 | struct snd_soc_component *component; |
f2ed6b07 | 1367 | int order; |
44c69bb1 | 1368 | int ret; |
3ca041ed | 1369 | |
1a1035a9 | 1370 | for_each_comp_order(order) { |
74bd3f92 KM |
1371 | for_each_card_auxs(card, component) { |
1372 | if (component->driver->probe_order != order) | |
1373 | continue; | |
1374 | ||
1375 | ret = soc_probe_component(card, component); | |
1376 | if (ret < 0) | |
1377 | return ret; | |
5f3484ac LPC |
1378 | } |
1379 | } | |
2eea392d | 1380 | |
f2ed6b07 | 1381 | return 0; |
2eea392d JN |
1382 | } |
1383 | ||
f2ed6b07 | 1384 | static void soc_remove_aux_devices(struct snd_soc_card *card) |
2eea392d | 1385 | { |
f2ed6b07 ML |
1386 | struct snd_soc_component *comp, *_comp; |
1387 | int order; | |
2eea392d | 1388 | |
1a1035a9 | 1389 | for_each_comp_order(order) { |
c2b71c71 | 1390 | for_each_card_auxs_safe(card, comp, _comp) { |
e8fbd250 | 1391 | if (comp->driver->remove_order == order) |
c6619b72 | 1392 | soc_remove_component(comp, 1); |
f2ed6b07 | 1393 | } |
2eea392d | 1394 | } |
2eea392d JN |
1395 | } |
1396 | ||
ce64c8b9 LPC |
1397 | /** |
1398 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1399 | * @rtd: The runtime for which the DAI link format should be changed | |
1400 | * @dai_fmt: The new DAI link format | |
1401 | * | |
1402 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1403 | * link for the specified runtime. | |
1404 | * | |
1405 | * Note: For setups with a static format set the dai_fmt field in the | |
1406 | * corresponding snd_dai_link struct instead of using this function. | |
1407 | * | |
1408 | * Returns 0 on success, otherwise a negative error code. | |
1409 | */ | |
1410 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1411 | unsigned int dai_fmt) | |
1412 | { | |
76afa643 | 1413 | struct snd_soc_dai *cpu_dai; |
0b7990e3 | 1414 | struct snd_soc_dai *codec_dai; |
76afa643 | 1415 | unsigned int inv_dai_fmt; |
ce64c8b9 LPC |
1416 | unsigned int i; |
1417 | int ret; | |
1418 | ||
a4be4187 | 1419 | for_each_rtd_codec_dais(rtd, i, codec_dai) { |
ce64c8b9 LPC |
1420 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); |
1421 | if (ret != 0 && ret != -ENOTSUPP) { | |
1422 | dev_warn(codec_dai->dev, | |
1423 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1424 | return ret; | |
1425 | } | |
1426 | } | |
1427 | ||
2c7b696a MZ |
1428 | /* |
1429 | * Flip the polarity for the "CPU" end of a CODEC<->CODEC link | |
1430 | * the component which has non_legacy_dai_naming is Codec | |
1431 | */ | |
76afa643 SN |
1432 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; |
1433 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1434 | case SND_SOC_DAIFMT_CBM_CFM: | |
1435 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1436 | break; | |
1437 | case SND_SOC_DAIFMT_CBM_CFS: | |
1438 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1439 | break; | |
1440 | case SND_SOC_DAIFMT_CBS_CFM: | |
1441 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1442 | break; | |
1443 | case SND_SOC_DAIFMT_CBS_CFS: | |
1444 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1445 | break; | |
ce64c8b9 | 1446 | } |
a4be4187 | 1447 | for_each_rtd_cpu_dais(rtd, i, cpu_dai) { |
76afa643 | 1448 | unsigned int fmt = dai_fmt; |
ce64c8b9 | 1449 | |
76afa643 SN |
1450 | if (cpu_dai->component->driver->non_legacy_dai_naming) |
1451 | fmt = inv_dai_fmt; | |
1452 | ||
1453 | ret = snd_soc_dai_set_fmt(cpu_dai, fmt); | |
1454 | if (ret != 0 && ret != -ENOTSUPP) { | |
1455 | dev_warn(cpu_dai->dev, | |
1456 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1457 | return ret; | |
1458 | } | |
ce64c8b9 LPC |
1459 | } |
1460 | ||
1461 | return 0; | |
1462 | } | |
ddaca25a | 1463 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1464 | |
1f5a4535 | 1465 | #ifdef CONFIG_DMI |
8a6a6a38 KM |
1466 | /* |
1467 | * If a DMI filed contain strings in this blacklist (e.g. | |
1468 | * "Type2 - Board Manufacturer" or "Type1 - TBD by OEM"), it will be taken | |
1469 | * as invalid and dropped when setting the card long name from DMI info. | |
1470 | */ | |
1471 | static const char * const dmi_blacklist[] = { | |
1472 | "To be filled by OEM", | |
1473 | "TBD by OEM", | |
1474 | "Default String", | |
1475 | "Board Manufacturer", | |
1476 | "Board Vendor Name", | |
1477 | "Board Product Name", | |
1478 | NULL, /* terminator */ | |
1479 | }; | |
1480 | ||
2c7b696a MZ |
1481 | /* |
1482 | * Trim special characters, and replace '-' with '_' since '-' is used to | |
345233d7 LG |
1483 | * separate different DMI fields in the card long name. Only number and |
1484 | * alphabet characters and a few separator characters are kept. | |
1485 | */ | |
1486 | static void cleanup_dmi_name(char *name) | |
1487 | { | |
1488 | int i, j = 0; | |
1489 | ||
1490 | for (i = 0; name[i]; i++) { | |
1491 | if (isalnum(name[i]) || (name[i] == '.') | |
1492 | || (name[i] == '_')) | |
1493 | name[j++] = name[i]; | |
1494 | else if (name[i] == '-') | |
1495 | name[j++] = '_'; | |
1496 | } | |
1497 | ||
1498 | name[j] = '\0'; | |
1499 | } | |
1500 | ||
2c7b696a MZ |
1501 | /* |
1502 | * Check if a DMI field is valid, i.e. not containing any string | |
98faf436 ML |
1503 | * in the black list. |
1504 | */ | |
1505 | static int is_dmi_valid(const char *field) | |
1506 | { | |
1507 | int i = 0; | |
1508 | ||
1509 | while (dmi_blacklist[i]) { | |
1510 | if (strstr(field, dmi_blacklist[i])) | |
1511 | return 0; | |
1512 | i++; | |
46b5a4d2 | 1513 | } |
98faf436 ML |
1514 | |
1515 | return 1; | |
1516 | } | |
1517 | ||
4e01e5db JK |
1518 | /* |
1519 | * Append a string to card->dmi_longname with character cleanups. | |
1520 | */ | |
1521 | static void append_dmi_string(struct snd_soc_card *card, const char *str) | |
1522 | { | |
1523 | char *dst = card->dmi_longname; | |
1524 | size_t dst_len = sizeof(card->dmi_longname); | |
1525 | size_t len; | |
1526 | ||
1527 | len = strlen(dst); | |
1528 | snprintf(dst + len, dst_len - len, "-%s", str); | |
1529 | ||
1530 | len++; /* skip the separator "-" */ | |
1531 | if (len < dst_len) | |
1532 | cleanup_dmi_name(dst + len); | |
1533 | } | |
1534 | ||
345233d7 LG |
1535 | /** |
1536 | * snd_soc_set_dmi_name() - Register DMI names to card | |
1537 | * @card: The card to register DMI names | |
1538 | * @flavour: The flavour "differentiator" for the card amongst its peers. | |
1539 | * | |
1540 | * An Intel machine driver may be used by many different devices but are | |
1541 | * difficult for userspace to differentiate, since machine drivers ususally | |
1542 | * use their own name as the card short name and leave the card long name | |
1543 | * blank. To differentiate such devices and fix bugs due to lack of | |
1544 | * device-specific configurations, this function allows DMI info to be used | |
1545 | * as the sound card long name, in the format of | |
1546 | * "vendor-product-version-board" | |
1547 | * (Character '-' is used to separate different DMI fields here). | |
1548 | * This will help the user space to load the device-specific Use Case Manager | |
1549 | * (UCM) configurations for the card. | |
1550 | * | |
1551 | * Possible card long names may be: | |
1552 | * DellInc.-XPS139343-01-0310JH | |
1553 | * ASUSTeKCOMPUTERINC.-T100TA-1.0-T100TA | |
1554 | * Circuitco-MinnowboardMaxD0PLATFORM-D0-MinnowBoardMAX | |
1555 | * | |
1556 | * This function also supports flavoring the card longname to provide | |
1557 | * the extra differentiation, like "vendor-product-version-board-flavor". | |
1558 | * | |
1559 | * We only keep number and alphabet characters and a few separator characters | |
1560 | * in the card long name since UCM in the user space uses the card long names | |
1561 | * as card configuration directory names and AudoConf cannot support special | |
1562 | * charactors like SPACE. | |
1563 | * | |
1564 | * Returns 0 on success, otherwise a negative error code. | |
1565 | */ | |
1566 | int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) | |
1567 | { | |
1568 | const char *vendor, *product, *product_version, *board; | |
345233d7 LG |
1569 | |
1570 | if (card->long_name) | |
1571 | return 0; /* long name already set by driver or from DMI */ | |
1572 | ||
4e01e5db | 1573 | /* make up dmi long name as: vendor-product-version-board */ |
345233d7 | 1574 | vendor = dmi_get_system_info(DMI_BOARD_VENDOR); |
98faf436 | 1575 | if (!vendor || !is_dmi_valid(vendor)) { |
345233d7 LG |
1576 | dev_warn(card->dev, "ASoC: no DMI vendor name!\n"); |
1577 | return 0; | |
1578 | } | |
1579 | ||
4e01e5db | 1580 | snprintf(card->dmi_longname, sizeof(card->dmi_longname), "%s", vendor); |
345233d7 LG |
1581 | cleanup_dmi_name(card->dmi_longname); |
1582 | ||
1583 | product = dmi_get_system_info(DMI_PRODUCT_NAME); | |
98faf436 | 1584 | if (product && is_dmi_valid(product)) { |
4e01e5db | 1585 | append_dmi_string(card, product); |
345233d7 | 1586 | |
2c7b696a MZ |
1587 | /* |
1588 | * some vendors like Lenovo may only put a self-explanatory | |
345233d7 LG |
1589 | * name in the product version field |
1590 | */ | |
1591 | product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); | |
4e01e5db JK |
1592 | if (product_version && is_dmi_valid(product_version)) |
1593 | append_dmi_string(card, product_version); | |
345233d7 LG |
1594 | } |
1595 | ||
1596 | board = dmi_get_system_info(DMI_BOARD_NAME); | |
98faf436 | 1597 | if (board && is_dmi_valid(board)) { |
39870b0d JK |
1598 | if (!product || strcasecmp(board, product)) |
1599 | append_dmi_string(card, board); | |
345233d7 LG |
1600 | } else if (!product) { |
1601 | /* fall back to using legacy name */ | |
1602 | dev_warn(card->dev, "ASoC: no DMI board/product name!\n"); | |
1603 | return 0; | |
1604 | } | |
1605 | ||
1606 | /* Add flavour to dmi long name */ | |
4e01e5db JK |
1607 | if (flavour) |
1608 | append_dmi_string(card, flavour); | |
345233d7 LG |
1609 | |
1610 | /* set the card long name */ | |
1611 | card->long_name = card->dmi_longname; | |
1612 | ||
1613 | return 0; | |
1614 | } | |
1615 | EXPORT_SYMBOL_GPL(snd_soc_set_dmi_name); | |
1f5a4535 | 1616 | #endif /* CONFIG_DMI */ |
345233d7 | 1617 | |
a655de80 LG |
1618 | static void soc_check_tplg_fes(struct snd_soc_card *card) |
1619 | { | |
1620 | struct snd_soc_component *component; | |
1621 | const struct snd_soc_component_driver *comp_drv; | |
1622 | struct snd_soc_dai_link *dai_link; | |
1623 | int i; | |
1624 | ||
368dee94 | 1625 | for_each_component(component) { |
a655de80 | 1626 | |
49f9c4f2 | 1627 | /* does this component override BEs ? */ |
a655de80 LG |
1628 | if (!component->driver->ignore_machine) |
1629 | continue; | |
1630 | ||
1631 | /* for this machine ? */ | |
e194098b PLB |
1632 | if (!strcmp(component->driver->ignore_machine, |
1633 | card->dev->driver->name)) | |
1634 | goto match; | |
a655de80 | 1635 | if (strcmp(component->driver->ignore_machine, |
e194098b | 1636 | dev_name(card->dev))) |
a655de80 | 1637 | continue; |
e194098b | 1638 | match: |
a655de80 | 1639 | /* machine matches, so override the rtd data */ |
7fe072b4 | 1640 | for_each_card_prelinks(card, i, dai_link) { |
a655de80 LG |
1641 | |
1642 | /* ignore this FE */ | |
1643 | if (dai_link->dynamic) { | |
1644 | dai_link->ignore = true; | |
1645 | continue; | |
1646 | } | |
1647 | ||
1328948f PLB |
1648 | dev_dbg(card->dev, "info: override BE DAI link %s\n", |
1649 | card->dai_link[i].name); | |
a655de80 LG |
1650 | |
1651 | /* override platform component */ | |
adb76b5b | 1652 | if (!dai_link->platforms) { |
daecf46e KM |
1653 | dev_err(card->dev, "init platform error"); |
1654 | continue; | |
1655 | } | |
910fdcab | 1656 | dai_link->platforms->name = component->name; |
a655de80 LG |
1657 | |
1658 | /* convert non BE into BE */ | |
607fa205 BL |
1659 | if (!dai_link->no_pcm) { |
1660 | dai_link->no_pcm = 1; | |
1661 | ||
1662 | if (dai_link->dpcm_playback) | |
1663 | dev_warn(card->dev, | |
1664 | "invalid configuration, dailink %s has flags no_pcm=0 and dpcm_playback=1\n", | |
1665 | dai_link->name); | |
1666 | if (dai_link->dpcm_capture) | |
1667 | dev_warn(card->dev, | |
1668 | "invalid configuration, dailink %s has flags no_pcm=0 and dpcm_capture=1\n", | |
1669 | dai_link->name); | |
1670 | ||
1671 | /* convert normal link into DPCM one */ | |
1672 | if (!(dai_link->dpcm_playback || | |
1673 | dai_link->dpcm_capture)) { | |
1674 | dai_link->dpcm_playback = !dai_link->capture_only; | |
1675 | dai_link->dpcm_capture = !dai_link->playback_only; | |
1676 | } | |
1677 | } | |
a655de80 | 1678 | |
0cbbf8a0 KM |
1679 | /* |
1680 | * override any BE fixups | |
1681 | * see | |
1682 | * snd_soc_link_be_hw_params_fixup() | |
1683 | */ | |
a655de80 LG |
1684 | dai_link->be_hw_params_fixup = |
1685 | component->driver->be_hw_params_fixup; | |
1686 | ||
2c7b696a MZ |
1687 | /* |
1688 | * most BE links don't set stream name, so set it to | |
a655de80 LG |
1689 | * dai link name if it's NULL to help bind widgets. |
1690 | */ | |
1691 | if (!dai_link->stream_name) | |
1692 | dai_link->stream_name = dai_link->name; | |
1693 | } | |
1694 | ||
1695 | /* Inform userspace we are using alternate topology */ | |
1696 | if (component->driver->topology_name_prefix) { | |
1697 | ||
2c7b696a | 1698 | /* topology shortname created? */ |
a655de80 LG |
1699 | if (!card->topology_shortname_created) { |
1700 | comp_drv = component->driver; | |
1701 | ||
1702 | snprintf(card->topology_shortname, 32, "%s-%s", | |
1703 | comp_drv->topology_name_prefix, | |
1704 | card->name); | |
1705 | card->topology_shortname_created = true; | |
1706 | } | |
1707 | ||
1708 | /* use topology shortname */ | |
1709 | card->name = card->topology_shortname; | |
1710 | } | |
1711 | } | |
1712 | } | |
1713 | ||
0f23f718 KM |
1714 | #define soc_setup_card_name(name, name1, name2, norm) \ |
1715 | __soc_setup_card_name(name, sizeof(name), name1, name2, norm) | |
1716 | static void __soc_setup_card_name(char *name, int len, | |
1717 | const char *name1, const char *name2, | |
1718 | int normalization) | |
1719 | { | |
1720 | int i; | |
1721 | ||
1722 | snprintf(name, len, "%s", name1 ? name1 : name2); | |
1723 | ||
1724 | if (!normalization) | |
1725 | return; | |
1726 | ||
1727 | /* | |
1728 | * Name normalization | |
1729 | * | |
1730 | * The driver name is somewhat special, as it's used as a key for | |
1731 | * searches in the user-space. | |
1732 | * | |
1733 | * ex) | |
1734 | * "abcd??efg" -> "abcd__efg" | |
1735 | */ | |
1736 | for (i = 0; i < len; i++) { | |
1737 | switch (name[i]) { | |
1738 | case '_': | |
1739 | case '-': | |
1740 | case '\0': | |
1741 | break; | |
1742 | default: | |
1743 | if (!isalnum(name[i])) | |
1744 | name[i] = '_'; | |
1745 | break; | |
1746 | } | |
1747 | } | |
1748 | } | |
1749 | ||
27f07cac | 1750 | static void soc_cleanup_card_resources(struct snd_soc_card *card) |
53e947a0 | 1751 | { |
cc733900 | 1752 | struct snd_soc_pcm_runtime *rtd, *n; |
7ce6088f | 1753 | |
0ced7b05 KM |
1754 | if (card->snd_card) |
1755 | snd_card_disconnect_sync(card->snd_card); | |
53e947a0 | 1756 | |
2a6f0892 KM |
1757 | snd_soc_dapm_shutdown(card); |
1758 | ||
53e947a0 | 1759 | /* remove and free each DAI */ |
7ce6088f | 1760 | soc_remove_link_dais(card); |
0ced7b05 | 1761 | soc_remove_link_components(card); |
7ce6088f | 1762 | |
cc733900 | 1763 | for_each_card_rtds_safe(card, rtd, n) |
50cd9b53 | 1764 | snd_soc_remove_pcm_runtime(card, rtd); |
7ce6088f | 1765 | |
53e947a0 KM |
1766 | /* remove auxiliary devices */ |
1767 | soc_remove_aux_devices(card); | |
e8fbd250 | 1768 | soc_unbind_aux_dev(card); |
53e947a0 KM |
1769 | |
1770 | snd_soc_dapm_free(&card->dapm); | |
1771 | soc_cleanup_card_debugfs(card); | |
1772 | ||
1773 | /* remove the card */ | |
b0275d95 | 1774 | snd_soc_card_remove(card); |
0ced7b05 KM |
1775 | |
1776 | if (card->snd_card) { | |
1777 | snd_card_free(card->snd_card); | |
1778 | card->snd_card = NULL; | |
1779 | } | |
53e947a0 KM |
1780 | } |
1781 | ||
2cc1afcf KM |
1782 | static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) |
1783 | { | |
1784 | if (card->instantiated) { | |
1785 | card->instantiated = false; | |
1786 | snd_soc_flush_all_delayed_work(card); | |
1787 | ||
27f07cac | 1788 | soc_cleanup_card_resources(card); |
2cc1afcf KM |
1789 | if (!unregister) |
1790 | list_add(&card->list, &unbind_card_list); | |
1791 | } else { | |
1792 | if (unregister) | |
1793 | list_del(&card->list); | |
1794 | } | |
1795 | } | |
1796 | ||
ed90c013 | 1797 | static int snd_soc_bind_card(struct snd_soc_card *card) |
f0fba2ad | 1798 | { |
1a497983 | 1799 | struct snd_soc_pcm_runtime *rtd; |
76c39e86 | 1800 | struct snd_soc_component *component; |
61b0088b | 1801 | struct snd_soc_dai_link *dai_link; |
27f07cac | 1802 | int ret, i; |
fe3e78e0 | 1803 | |
34e81ab4 | 1804 | mutex_lock(&client_mutex); |
01b9d99a | 1805 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1806 | |
95c267dd | 1807 | snd_soc_dapm_init(&card->dapm, card, NULL); |
53e947a0 | 1808 | |
a655de80 LG |
1809 | /* check whether any platform is ignore machine FE and using topology */ |
1810 | soc_check_tplg_fes(card); | |
1811 | ||
44c69bb1 | 1812 | /* bind aux_devs too */ |
bee886f1 KM |
1813 | ret = soc_bind_aux_dev(card); |
1814 | if (ret < 0) | |
1815 | goto probe_end; | |
435c5e25 | 1816 | |
f8f80361 | 1817 | /* add predefined DAI links to the list */ |
d8145989 | 1818 | card->num_rtd = 0; |
5b99a0aa | 1819 | for_each_card_prelinks(card, i, dai_link) { |
0c048004 | 1820 | ret = snd_soc_add_pcm_runtime(card, dai_link); |
5b99a0aa KM |
1821 | if (ret < 0) |
1822 | goto probe_end; | |
1823 | } | |
f8f80361 | 1824 | |
f0fba2ad | 1825 | /* card bind complete so register a sound card */ |
102b5a8d | 1826 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1827 | card->owner, 0, &card->snd_card); |
1828 | if (ret < 0) { | |
10e8aa9a MM |
1829 | dev_err(card->dev, |
1830 | "ASoC: can't create sound card for card %s: %d\n", | |
1831 | card->name, ret); | |
53e947a0 | 1832 | goto probe_end; |
f0fba2ad | 1833 | } |
f0fba2ad | 1834 | |
0757d834 LPC |
1835 | soc_init_card_debugfs(card); |
1836 | ||
b3da4251 | 1837 | soc_resume_init(card); |
db2a4165 | 1838 | |
b8ba3b57 KM |
1839 | ret = snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, |
1840 | card->num_dapm_widgets); | |
1841 | if (ret < 0) | |
1842 | goto probe_end; | |
9a841ebb | 1843 | |
b8ba3b57 KM |
1844 | ret = snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, |
1845 | card->num_of_dapm_widgets); | |
1846 | if (ret < 0) | |
1847 | goto probe_end; | |
f23e860e | 1848 | |
f0fba2ad | 1849 | /* initialise the sound card only once */ |
73de4b02 KM |
1850 | ret = snd_soc_card_probe(card); |
1851 | if (ret < 0) | |
1852 | goto probe_end; | |
fe3e78e0 | 1853 | |
62ae68fa | 1854 | /* probe all components used by DAI links on this card */ |
62f07a6b KM |
1855 | ret = soc_probe_link_components(card); |
1856 | if (ret < 0) { | |
1857 | dev_err(card->dev, | |
1858 | "ASoC: failed to instantiate card %d\n", ret); | |
1859 | goto probe_end; | |
62ae68fa SW |
1860 | } |
1861 | ||
f2ed6b07 ML |
1862 | /* probe auxiliary components */ |
1863 | ret = soc_probe_aux_devices(card); | |
74bd3f92 KM |
1864 | if (ret < 0) { |
1865 | dev_err(card->dev, | |
1866 | "ASoC: failed to probe aux component %d\n", ret); | |
53e947a0 | 1867 | goto probe_end; |
74bd3f92 | 1868 | } |
f2ed6b07 | 1869 | |
62ae68fa | 1870 | /* probe all DAI links on this card */ |
c7e73774 KM |
1871 | ret = soc_probe_link_dais(card); |
1872 | if (ret < 0) { | |
1873 | dev_err(card->dev, | |
1874 | "ASoC: failed to instantiate card %d\n", ret); | |
1875 | goto probe_end; | |
f0fba2ad | 1876 | } |
db2a4165 | 1877 | |
626c2e57 | 1878 | for_each_card_rtds(card, rtd) { |
eaffeefb | 1879 | ret = soc_init_pcm_runtime(card, rtd); |
626c2e57 KM |
1880 | if (ret < 0) |
1881 | goto probe_end; | |
1882 | } | |
c4b46982 | 1883 | |
888df395 | 1884 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1885 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1886 | |
9b98c7c2 KM |
1887 | ret = snd_soc_add_card_controls(card, card->controls, |
1888 | card->num_controls); | |
1889 | if (ret < 0) | |
1890 | goto probe_end; | |
b7af1daf | 1891 | |
daa480bd KM |
1892 | ret = snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, |
1893 | card->num_dapm_routes); | |
a22ae72b PLB |
1894 | if (ret < 0) { |
1895 | if (card->disable_route_checks) { | |
1896 | dev_info(card->dev, | |
1897 | "%s: disable_route_checks set, ignoring errors on add_routes\n", | |
1898 | __func__); | |
1899 | } else { | |
1900 | dev_err(card->dev, | |
1901 | "%s: snd_soc_dapm_add_routes failed: %d\n", | |
1902 | __func__, ret); | |
1903 | goto probe_end; | |
1904 | } | |
1905 | } | |
b8ad29de | 1906 | |
daa480bd KM |
1907 | ret = snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, |
1908 | card->num_of_dapm_routes); | |
1909 | if (ret < 0) | |
1910 | goto probe_end; | |
75d9ac46 | 1911 | |
861886d3 TI |
1912 | /* try to set some sane longname if DMI is available */ |
1913 | snd_soc_set_dmi_name(card, NULL); | |
1914 | ||
0f23f718 KM |
1915 | soc_setup_card_name(card->snd_card->shortname, |
1916 | card->name, NULL, 0); | |
1917 | soc_setup_card_name(card->snd_card->longname, | |
1918 | card->long_name, card->name, 0); | |
1919 | soc_setup_card_name(card->snd_card->driver, | |
1920 | card->driver_name, card->name, 1); | |
f0fba2ad | 1921 | |
dc73d73a JK |
1922 | if (card->components) { |
1923 | /* the current implementation of snd_component_add() accepts */ | |
1924 | /* multiple components in the string separated by space, */ | |
1925 | /* but the string collision (identical string) check might */ | |
1926 | /* not work correctly */ | |
1927 | ret = snd_component_add(card->snd_card, card->components); | |
1928 | if (ret < 0) { | |
1929 | dev_err(card->dev, "ASoC: %s snd_component_add() failed: %d\n", | |
1930 | card->name, ret); | |
1931 | goto probe_end; | |
1932 | } | |
1933 | } | |
1934 | ||
5c0eac03 KM |
1935 | ret = snd_soc_card_late_probe(card); |
1936 | if (ret < 0) | |
1937 | goto probe_end; | |
28e9ad92 | 1938 | |
824ef826 | 1939 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 1940 | |
f0fba2ad LG |
1941 | ret = snd_card_register(card->snd_card); |
1942 | if (ret < 0) { | |
f110bfc7 LG |
1943 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
1944 | ret); | |
53e947a0 | 1945 | goto probe_end; |
db2a4165 FM |
1946 | } |
1947 | ||
f0fba2ad | 1948 | card->instantiated = 1; |
882eab6c | 1949 | dapm_mark_endpoints_dirty(card); |
4f4c0072 | 1950 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1951 | |
ed90c013 | 1952 | /* deactivate pins to sleep state */ |
76c39e86 | 1953 | for_each_card_components(card, component) |
b3dea624 | 1954 | if (!snd_soc_component_active(component)) |
76c39e86 | 1955 | pinctrl_pm_select_sleep_state(component->dev); |
ed90c013 | 1956 | |
53e947a0 KM |
1957 | probe_end: |
1958 | if (ret < 0) | |
27f07cac | 1959 | soc_cleanup_card_resources(card); |
f0fba2ad LG |
1960 | |
1961 | mutex_unlock(&card->mutex); | |
34e81ab4 | 1962 | mutex_unlock(&client_mutex); |
db2a4165 | 1963 | |
b19e6e7b | 1964 | return ret; |
435c5e25 MB |
1965 | } |
1966 | ||
1967 | /* probes a new socdev */ | |
1968 | static int soc_probe(struct platform_device *pdev) | |
1969 | { | |
f0fba2ad | 1970 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1971 | |
70a7ca34 VK |
1972 | /* |
1973 | * no card, so machine driver should be registering card | |
1974 | * we should not be here in that case so ret error | |
1975 | */ | |
1976 | if (!card) | |
1977 | return -EINVAL; | |
1978 | ||
fe4085e8 | 1979 | dev_warn(&pdev->dev, |
f110bfc7 | 1980 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
1981 | card->name); |
1982 | ||
435c5e25 MB |
1983 | /* Bodge while we unpick instantiation */ |
1984 | card->dev = &pdev->dev; | |
f0fba2ad | 1985 | |
28d528c8 | 1986 | return snd_soc_register_card(card); |
db2a4165 FM |
1987 | } |
1988 | ||
b0e26485 VK |
1989 | /* removes a socdev */ |
1990 | static int soc_remove(struct platform_device *pdev) | |
1991 | { | |
1992 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1993 | |
c5af3a2e | 1994 | snd_soc_unregister_card(card); |
db2a4165 FM |
1995 | return 0; |
1996 | } | |
1997 | ||
6f8ab4ac | 1998 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1999 | { |
6f8ab4ac | 2000 | struct snd_soc_card *card = dev_get_drvdata(dev); |
76c39e86 | 2001 | struct snd_soc_component *component; |
51737470 MB |
2002 | |
2003 | if (!card->instantiated) | |
416356fc | 2004 | return 0; |
51737470 | 2005 | |
2c7b696a MZ |
2006 | /* |
2007 | * Flush out pmdown_time work - we actually do want to run it | |
2008 | * now, we're shutting down so no imminent restart. | |
2009 | */ | |
65462e44 | 2010 | snd_soc_flush_all_delayed_work(card); |
51737470 | 2011 | |
f0fba2ad | 2012 | snd_soc_dapm_shutdown(card); |
416356fc | 2013 | |
988e8cc4 | 2014 | /* deactivate pins to sleep state */ |
76c39e86 KM |
2015 | for_each_card_components(card, component) |
2016 | pinctrl_pm_select_sleep_state(component->dev); | |
988e8cc4 | 2017 | |
416356fc | 2018 | return 0; |
51737470 | 2019 | } |
6f8ab4ac | 2020 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2021 | |
6f8ab4ac | 2022 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
2023 | .suspend = snd_soc_suspend, |
2024 | .resume = snd_soc_resume, | |
2025 | .freeze = snd_soc_suspend, | |
2026 | .thaw = snd_soc_resume, | |
6f8ab4ac | 2027 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 2028 | .restore = snd_soc_resume, |
416356fc | 2029 | }; |
deb2607e | 2030 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2031 | |
db2a4165 FM |
2032 | /* ASoC platform driver */ |
2033 | static struct platform_driver soc_driver = { | |
2034 | .driver = { | |
2035 | .name = "soc-audio", | |
6f8ab4ac | 2036 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2037 | }, |
2038 | .probe = soc_probe, | |
2039 | .remove = soc_remove, | |
db2a4165 FM |
2040 | }; |
2041 | ||
db2a4165 FM |
2042 | /** |
2043 | * snd_soc_cnew - create new control | |
2044 | * @_template: control template | |
2045 | * @data: control private data | |
ac11a2b3 | 2046 | * @long_name: control long name |
efb7ac3f | 2047 | * @prefix: control name prefix |
db2a4165 FM |
2048 | * |
2049 | * Create a new mixer control from a template control. | |
2050 | * | |
2051 | * Returns 0 for success, else error. | |
2052 | */ | |
2053 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2054 | void *data, const char *long_name, |
efb7ac3f | 2055 | const char *prefix) |
db2a4165 FM |
2056 | { |
2057 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2058 | struct snd_kcontrol *kcontrol; |
2059 | char *name = NULL; | |
db2a4165 FM |
2060 | |
2061 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2062 | template.index = 0; |
2063 | ||
efb7ac3f MB |
2064 | if (!long_name) |
2065 | long_name = template.name; | |
2066 | ||
2067 | if (prefix) { | |
2b581074 | 2068 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
2069 | if (!name) |
2070 | return NULL; | |
2071 | ||
efb7ac3f MB |
2072 | template.name = name; |
2073 | } else { | |
2074 | template.name = long_name; | |
2075 | } | |
2076 | ||
2077 | kcontrol = snd_ctl_new1(&template, data); | |
2078 | ||
2079 | kfree(name); | |
2080 | ||
2081 | return kcontrol; | |
db2a4165 FM |
2082 | } |
2083 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2084 | ||
022658be LG |
2085 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2086 | const struct snd_kcontrol_new *controls, int num_controls, | |
2087 | const char *prefix, void *data) | |
2088 | { | |
2089 | int err, i; | |
2090 | ||
2091 | for (i = 0; i < num_controls; i++) { | |
2092 | const struct snd_kcontrol_new *control = &controls[i]; | |
2c7b696a | 2093 | |
022658be LG |
2094 | err = snd_ctl_add(card, snd_soc_cnew(control, data, |
2095 | control->name, prefix)); | |
2096 | if (err < 0) { | |
f110bfc7 LG |
2097 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
2098 | control->name, err); | |
022658be LG |
2099 | return err; |
2100 | } | |
2101 | } | |
2102 | ||
2103 | return 0; | |
2104 | } | |
2105 | ||
0f2780ad LPC |
2106 | /** |
2107 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
2108 | * | |
2109 | * @component: Component to add controls to | |
2110 | * @controls: Array of controls to add | |
2111 | * @num_controls: Number of elements in the array | |
2112 | * | |
2113 | * Return: 0 for success, else error. | |
2114 | */ | |
2115 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
2116 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
2117 | { | |
2118 | struct snd_card *card = component->card->snd_card; | |
2119 | ||
2120 | return snd_soc_add_controls(card, component->dev, controls, | |
2121 | num_controls, component->name_prefix, component); | |
2122 | } | |
2123 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
2124 | ||
022658be LG |
2125 | /** |
2126 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2127 | * Convenience function to add a list of controls. | |
2128 | * | |
2129 | * @soc_card: SoC card to add controls to | |
2130 | * @controls: array of controls to add | |
2131 | * @num_controls: number of elements in the array | |
2132 | * | |
2133 | * Return 0 for success, else error. | |
2134 | */ | |
2135 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2136 | const struct snd_kcontrol_new *controls, int num_controls) | |
2137 | { | |
2138 | struct snd_card *card = soc_card->snd_card; | |
2139 | ||
2140 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2141 | NULL, soc_card); | |
2142 | } | |
2143 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2144 | ||
2145 | /** | |
2146 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2147 | * Convienience function to add a list of controls. | |
2148 | * | |
2149 | * @dai: DAI to add controls to | |
2150 | * @controls: array of controls to add | |
2151 | * @num_controls: number of elements in the array | |
2152 | * | |
2153 | * Return 0 for success, else error. | |
2154 | */ | |
2155 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2156 | const struct snd_kcontrol_new *controls, int num_controls) | |
2157 | { | |
313665b9 | 2158 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2159 | |
2160 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2161 | NULL, dai); | |
2162 | } | |
2163 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2164 | ||
c5af3a2e MB |
2165 | /** |
2166 | * snd_soc_register_card - Register a card with the ASoC core | |
2167 | * | |
ac11a2b3 | 2168 | * @card: Card to register |
c5af3a2e | 2169 | * |
c5af3a2e | 2170 | */ |
70a7ca34 | 2171 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e MB |
2172 | { |
2173 | if (!card->name || !card->dev) | |
2174 | return -EINVAL; | |
2175 | ||
ed77cc12 MB |
2176 | dev_set_drvdata(card->dev, card); |
2177 | ||
b03bfaec KM |
2178 | INIT_LIST_HEAD(&card->widgets); |
2179 | INIT_LIST_HEAD(&card->paths); | |
2180 | INIT_LIST_HEAD(&card->dapm_list); | |
2181 | INIT_LIST_HEAD(&card->aux_comp_list); | |
2182 | INIT_LIST_HEAD(&card->component_dev_list); | |
2183 | INIT_LIST_HEAD(&card->list); | |
1a497983 | 2184 | INIT_LIST_HEAD(&card->rtd_list); |
db432b41 | 2185 | INIT_LIST_HEAD(&card->dapm_dirty); |
8a978234 | 2186 | INIT_LIST_HEAD(&card->dobj_list); |
b03bfaec | 2187 | |
c5af3a2e | 2188 | card->instantiated = 0; |
f0fba2ad | 2189 | mutex_init(&card->mutex); |
a73fb2df | 2190 | mutex_init(&card->dapm_mutex); |
72b745e3 | 2191 | mutex_init(&card->pcm_mutex); |
a9764869 | 2192 | spin_lock_init(&card->dpcm_lock); |
c5af3a2e | 2193 | |
e894efef SK |
2194 | return snd_soc_bind_card(card); |
2195 | } | |
2196 | EXPORT_SYMBOL_GPL(snd_soc_register_card); | |
88bd870f | 2197 | |
c5af3a2e MB |
2198 | /** |
2199 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2200 | * | |
ac11a2b3 | 2201 | * @card: Card to unregister |
c5af3a2e | 2202 | * |
c5af3a2e | 2203 | */ |
70a7ca34 | 2204 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2205 | { |
b545542a | 2206 | mutex_lock(&client_mutex); |
e894efef | 2207 | snd_soc_unbind_card(card, true); |
b545542a | 2208 | mutex_unlock(&client_mutex); |
e894efef | 2209 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
c5af3a2e MB |
2210 | |
2211 | return 0; | |
2212 | } | |
70a7ca34 | 2213 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2214 | |
f0fba2ad LG |
2215 | /* |
2216 | * Simplify DAI link configuration by removing ".-1" from device names | |
2217 | * and sanitizing names. | |
2218 | */ | |
0b9a214a | 2219 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2220 | { |
2221 | char *found, name[NAME_SIZE]; | |
2222 | int id1, id2; | |
2223 | ||
2224 | if (dev_name(dev) == NULL) | |
2225 | return NULL; | |
2226 | ||
58818a77 | 2227 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2228 | |
2229 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2230 | found = strstr(name, dev->driver->name); | |
2231 | if (found) { | |
2232 | /* get ID */ | |
2233 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2234 | ||
2235 | /* discard ID from name if ID == -1 */ | |
2236 | if (*id == -1) | |
2237 | found[strlen(dev->driver->name)] = '\0'; | |
2238 | } | |
2239 | ||
2240 | } else { | |
2c7b696a | 2241 | /* I2C component devices are named "bus-addr" */ |
f0fba2ad LG |
2242 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { |
2243 | char tmp[NAME_SIZE]; | |
2244 | ||
2245 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2246 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2247 | |
2248 | /* sanitize component name for DAI link creation */ | |
2c7b696a MZ |
2249 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, |
2250 | name); | |
58818a77 | 2251 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2252 | } else |
2253 | *id = 0; | |
2254 | } | |
2255 | ||
50014499 | 2256 | return devm_kstrdup(dev, name, GFP_KERNEL); |
f0fba2ad LG |
2257 | } |
2258 | ||
2259 | /* | |
2260 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2261 | * any ".-1" and using the DAI name (instead of device name). | |
2262 | */ | |
2263 | static inline char *fmt_multiple_name(struct device *dev, | |
2264 | struct snd_soc_dai_driver *dai_drv) | |
2265 | { | |
2266 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2267 | dev_err(dev, |
2268 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2269 | dev_name(dev)); | |
f0fba2ad LG |
2270 | return NULL; |
2271 | } | |
2272 | ||
50014499 | 2273 | return devm_kstrdup(dev, dai_drv->name, GFP_KERNEL); |
f0fba2ad LG |
2274 | } |
2275 | ||
ffdbca0b | 2276 | void snd_soc_unregister_dai(struct snd_soc_dai *dai) |
e11381f3 KM |
2277 | { |
2278 | dev_dbg(dai->dev, "ASoC: Unregistered DAI '%s'\n", dai->name); | |
2279 | list_del(&dai->list); | |
2280 | } | |
ffdbca0b | 2281 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); |
e11381f3 | 2282 | |
7ca24386 KM |
2283 | /** |
2284 | * snd_soc_register_dai - Register a DAI dynamically & create its widgets | |
2285 | * | |
2286 | * @component: The component the DAIs are registered for | |
2287 | * @dai_drv: DAI driver to use for the DAI | |
bc9a6655 RD |
2288 | * @legacy_dai_naming: if %true, use legacy single-name format; |
2289 | * if %false, use multiple-name format; | |
7ca24386 KM |
2290 | * |
2291 | * Topology can use this API to register DAIs when probing a component. | |
2292 | * These DAIs's widgets will be freed in the card cleanup and the DAIs | |
2293 | * will be freed in the component cleanup. | |
2294 | */ | |
2295 | struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component, | |
2296 | struct snd_soc_dai_driver *dai_drv, | |
2297 | bool legacy_dai_naming) | |
5e4fb372 ML |
2298 | { |
2299 | struct device *dev = component->dev; | |
2300 | struct snd_soc_dai *dai; | |
2301 | ||
2302 | dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); | |
2303 | ||
7ca24386 KM |
2304 | lockdep_assert_held(&client_mutex); |
2305 | ||
50014499 | 2306 | dai = devm_kzalloc(dev, sizeof(*dai), GFP_KERNEL); |
5e4fb372 ML |
2307 | if (dai == NULL) |
2308 | return NULL; | |
2309 | ||
2310 | /* | |
2311 | * Back in the old days when we still had component-less DAIs, | |
2312 | * instead of having a static name, component-less DAIs would | |
2313 | * inherit the name of the parent device so it is possible to | |
2314 | * register multiple instances of the DAI. We still need to keep | |
2315 | * the same naming style even though those DAIs are not | |
2316 | * component-less anymore. | |
2317 | */ | |
2318 | if (legacy_dai_naming && | |
2c7b696a | 2319 | (dai_drv->id == 0 || dai_drv->name == NULL)) { |
5e4fb372 ML |
2320 | dai->name = fmt_single_name(dev, &dai->id); |
2321 | } else { | |
2322 | dai->name = fmt_multiple_name(dev, dai_drv); | |
2323 | if (dai_drv->id) | |
2324 | dai->id = dai_drv->id; | |
2325 | else | |
2326 | dai->id = component->num_dai; | |
2327 | } | |
50014499 | 2328 | if (!dai->name) |
5e4fb372 | 2329 | return NULL; |
5e4fb372 ML |
2330 | |
2331 | dai->component = component; | |
2332 | dai->dev = dev; | |
2333 | dai->driver = dai_drv; | |
5e4fb372 | 2334 | |
15a0c645 | 2335 | /* see for_each_component_dais */ |
58bf4179 | 2336 | list_add_tail(&dai->list, &component->dai_list); |
5e4fb372 ML |
2337 | component->num_dai++; |
2338 | ||
2339 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); | |
2340 | return dai; | |
2341 | } | |
e11381f3 | 2342 | |
3f6674ae KM |
2343 | /** |
2344 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core | |
2345 | * | |
2346 | * @component: The component for which the DAIs should be unregistered | |
2347 | */ | |
2348 | static void snd_soc_unregister_dais(struct snd_soc_component *component) | |
2349 | { | |
2350 | struct snd_soc_dai *dai, *_dai; | |
2351 | ||
e11381f3 KM |
2352 | for_each_component_dais_safe(component, dai, _dai) |
2353 | snd_soc_unregister_dai(dai); | |
3f6674ae KM |
2354 | } |
2355 | ||
daf77373 KM |
2356 | /** |
2357 | * snd_soc_register_dais - Register a DAI with the ASoC core | |
2358 | * | |
2359 | * @component: The component the DAIs are registered for | |
2360 | * @dai_drv: DAI driver to use for the DAIs | |
2361 | * @count: Number of DAIs | |
2362 | */ | |
2363 | static int snd_soc_register_dais(struct snd_soc_component *component, | |
2364 | struct snd_soc_dai_driver *dai_drv, | |
2365 | size_t count) | |
2366 | { | |
daf77373 KM |
2367 | struct snd_soc_dai *dai; |
2368 | unsigned int i; | |
2369 | int ret; | |
2370 | ||
daf77373 | 2371 | for (i = 0; i < count; i++) { |
71cb85f5 | 2372 | dai = snd_soc_register_dai(component, dai_drv + i, count == 1 && |
daf77373 KM |
2373 | !component->driver->non_legacy_dai_naming); |
2374 | if (dai == NULL) { | |
2375 | ret = -ENOMEM; | |
2376 | goto err; | |
2377 | } | |
2378 | } | |
2379 | ||
2380 | return 0; | |
2381 | ||
2382 | err: | |
2383 | snd_soc_unregister_dais(component); | |
2384 | ||
2385 | return ret; | |
2386 | } | |
2387 | ||
273d778e KM |
2388 | #define ENDIANNESS_MAP(name) \ |
2389 | (SNDRV_PCM_FMTBIT_##name##LE | SNDRV_PCM_FMTBIT_##name##BE) | |
2390 | static u64 endianness_format_map[] = { | |
2391 | ENDIANNESS_MAP(S16_), | |
2392 | ENDIANNESS_MAP(U16_), | |
2393 | ENDIANNESS_MAP(S24_), | |
2394 | ENDIANNESS_MAP(U24_), | |
2395 | ENDIANNESS_MAP(S32_), | |
2396 | ENDIANNESS_MAP(U32_), | |
2397 | ENDIANNESS_MAP(S24_3), | |
2398 | ENDIANNESS_MAP(U24_3), | |
2399 | ENDIANNESS_MAP(S20_3), | |
2400 | ENDIANNESS_MAP(U20_3), | |
2401 | ENDIANNESS_MAP(S18_3), | |
2402 | ENDIANNESS_MAP(U18_3), | |
2403 | ENDIANNESS_MAP(FLOAT_), | |
2404 | ENDIANNESS_MAP(FLOAT64_), | |
2405 | ENDIANNESS_MAP(IEC958_SUBFRAME_), | |
2406 | }; | |
2407 | ||
2408 | /* | |
2409 | * Fix up the DAI formats for endianness: codecs don't actually see | |
2410 | * the endianness of the data but we're using the CPU format | |
2411 | * definitions which do need to include endianness so we ensure that | |
2412 | * codec DAIs always have both big and little endian variants set. | |
2413 | */ | |
2414 | static void convert_endianness_formats(struct snd_soc_pcm_stream *stream) | |
2415 | { | |
2416 | int i; | |
2417 | ||
2418 | for (i = 0; i < ARRAY_SIZE(endianness_format_map); i++) | |
2419 | if (stream->formats & endianness_format_map[i]) | |
2420 | stream->formats |= endianness_format_map[i]; | |
2421 | } | |
2422 | ||
e894efef SK |
2423 | static void snd_soc_try_rebind_card(void) |
2424 | { | |
2425 | struct snd_soc_card *card, *c; | |
2426 | ||
b245d273 KM |
2427 | list_for_each_entry_safe(card, c, &unbind_card_list, list) |
2428 | if (!snd_soc_bind_card(card)) | |
2429 | list_del(&card->list); | |
e894efef SK |
2430 | } |
2431 | ||
486c7978 KM |
2432 | static void snd_soc_del_component_unlocked(struct snd_soc_component *component) |
2433 | { | |
b18768f5 KM |
2434 | struct snd_soc_card *card = component->card; |
2435 | ||
486c7978 | 2436 | snd_soc_unregister_dais(component); |
b18768f5 KM |
2437 | |
2438 | if (card) | |
2439 | snd_soc_unbind_card(card, false); | |
2440 | ||
2441 | list_del(&component->list); | |
486c7978 KM |
2442 | } |
2443 | ||
08ff7209 CR |
2444 | int snd_soc_component_initialize(struct snd_soc_component *component, |
2445 | const struct snd_soc_component_driver *driver, | |
7274d4cd | 2446 | struct device *dev) |
08ff7209 CR |
2447 | { |
2448 | INIT_LIST_HEAD(&component->dai_list); | |
2449 | INIT_LIST_HEAD(&component->dobj_list); | |
2450 | INIT_LIST_HEAD(&component->card_list); | |
2451 | mutex_init(&component->io_mutex); | |
2452 | ||
7274d4cd CR |
2453 | component->name = fmt_single_name(dev, &component->id); |
2454 | if (!component->name) { | |
2455 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
2456 | return -ENOMEM; | |
2457 | } | |
2458 | ||
08ff7209 CR |
2459 | component->dev = dev; |
2460 | component->driver = driver; | |
2461 | ||
2462 | return 0; | |
2463 | } | |
2464 | EXPORT_SYMBOL_GPL(snd_soc_component_initialize); | |
2465 | ||
ea029dd8 CR |
2466 | int snd_soc_add_component(struct snd_soc_component *component, |
2467 | struct snd_soc_dai_driver *dai_drv, | |
2468 | int num_dai) | |
d191bd8d | 2469 | { |
bb13109d | 2470 | int ret; |
273d778e | 2471 | int i; |
d191bd8d | 2472 | |
b18768f5 KM |
2473 | mutex_lock(&client_mutex); |
2474 | ||
ea029dd8 | 2475 | if (component->driver->endianness) { |
273d778e KM |
2476 | for (i = 0; i < num_dai; i++) { |
2477 | convert_endianness_formats(&dai_drv[i].playback); | |
2478 | convert_endianness_formats(&dai_drv[i].capture); | |
2479 | } | |
2480 | } | |
2481 | ||
0e7b25c6 | 2482 | ret = snd_soc_register_dais(component, dai_drv, num_dai); |
bb13109d | 2483 | if (ret < 0) { |
ea029dd8 CR |
2484 | dev_err(component->dev, "ASoC: Failed to register DAIs: %d\n", |
2485 | ret); | |
bb13109d LPC |
2486 | goto err_cleanup; |
2487 | } | |
d191bd8d | 2488 | |
b18768f5 KM |
2489 | if (!component->driver->write && !component->driver->read) { |
2490 | if (!component->regmap) | |
2491 | component->regmap = dev_get_regmap(component->dev, | |
2492 | NULL); | |
2493 | if (component->regmap) | |
2494 | snd_soc_component_setup_regmap(component); | |
2495 | } | |
4da53393 | 2496 | |
b18768f5 KM |
2497 | /* see for_each_component */ |
2498 | list_add(&component->list, &component_list); | |
4da53393 | 2499 | |
bb13109d | 2500 | err_cleanup: |
b18768f5 KM |
2501 | if (ret < 0) |
2502 | snd_soc_del_component_unlocked(component); | |
ea029dd8 | 2503 | |
b18768f5 KM |
2504 | mutex_unlock(&client_mutex); |
2505 | ||
2506 | if (ret == 0) | |
2507 | snd_soc_try_rebind_card(); | |
2508 | ||
bb13109d | 2509 | return ret; |
4da53393 | 2510 | } |
e0dac41b KM |
2511 | EXPORT_SYMBOL_GPL(snd_soc_add_component); |
2512 | ||
2513 | int snd_soc_register_component(struct device *dev, | |
2514 | const struct snd_soc_component_driver *component_driver, | |
2515 | struct snd_soc_dai_driver *dai_drv, | |
2516 | int num_dai) | |
2517 | { | |
2518 | struct snd_soc_component *component; | |
ea029dd8 | 2519 | int ret; |
e0dac41b | 2520 | |
7ecbd6a9 | 2521 | component = devm_kzalloc(dev, sizeof(*component), GFP_KERNEL); |
08e61d03 | 2522 | if (!component) |
e0dac41b | 2523 | return -ENOMEM; |
e0dac41b | 2524 | |
ea029dd8 CR |
2525 | ret = snd_soc_component_initialize(component, component_driver, dev); |
2526 | if (ret < 0) | |
2527 | return ret; | |
2528 | ||
2529 | return snd_soc_add_component(component, dai_drv, num_dai); | |
e0dac41b | 2530 | } |
bb13109d | 2531 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 2532 | |
58f30150 MR |
2533 | /** |
2534 | * snd_soc_unregister_component_by_driver - Unregister component using a given driver | |
2535 | * from the ASoC core | |
2536 | * | |
2537 | * @dev: The device to unregister | |
2538 | * @component_driver: The component driver to unregister | |
2539 | */ | |
2540 | void snd_soc_unregister_component_by_driver(struct device *dev, | |
2541 | const struct snd_soc_component_driver *component_driver) | |
2542 | { | |
2543 | struct snd_soc_component *component; | |
2544 | ||
2545 | if (!component_driver) | |
2546 | return; | |
2547 | ||
2548 | mutex_lock(&client_mutex); | |
2549 | component = snd_soc_lookup_component_nolocked(dev, component_driver->name); | |
2550 | if (!component) | |
2551 | goto out; | |
2552 | ||
2553 | snd_soc_del_component_unlocked(component); | |
2554 | ||
2555 | out: | |
2556 | mutex_unlock(&client_mutex); | |
2557 | } | |
2558 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component_by_driver); | |
2559 | ||
d191bd8d | 2560 | /** |
2eccea8c KM |
2561 | * snd_soc_unregister_component - Unregister all related component |
2562 | * from the ASoC core | |
d191bd8d | 2563 | * |
628536ea | 2564 | * @dev: The device to unregister |
d191bd8d | 2565 | */ |
ac6a4dd3 | 2566 | void snd_soc_unregister_component(struct device *dev) |
d191bd8d | 2567 | { |
cf9e829e | 2568 | struct snd_soc_component *component; |
d191bd8d | 2569 | |
34e81ab4 | 2570 | mutex_lock(&client_mutex); |
ac6a4dd3 | 2571 | while (1) { |
18dd66ea | 2572 | component = snd_soc_lookup_component_nolocked(dev, NULL); |
ac6a4dd3 KM |
2573 | if (!component) |
2574 | break; | |
21a03528 | 2575 | |
486c7978 | 2576 | snd_soc_del_component_unlocked(component); |
d191bd8d | 2577 | } |
34e81ab4 | 2578 | mutex_unlock(&client_mutex); |
d191bd8d KM |
2579 | } |
2580 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 2581 | |
bec4fa05 | 2582 | /* Retrieve a card's name from device tree */ |
b07609ce KM |
2583 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, |
2584 | const char *propname) | |
bec4fa05 | 2585 | { |
b07609ce | 2586 | struct device_node *np; |
bec4fa05 SW |
2587 | int ret; |
2588 | ||
7e07e7c0 TB |
2589 | if (!card->dev) { |
2590 | pr_err("card->dev is not set before calling %s\n", __func__); | |
2591 | return -EINVAL; | |
2592 | } | |
2593 | ||
b07609ce | 2594 | np = card->dev->of_node; |
7e07e7c0 | 2595 | |
bec4fa05 SW |
2596 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
2597 | /* | |
2598 | * EINVAL means the property does not exist. This is fine providing | |
2599 | * card->name was previously set, which is checked later in | |
2600 | * snd_soc_register_card. | |
2601 | */ | |
2602 | if (ret < 0 && ret != -EINVAL) { | |
2603 | dev_err(card->dev, | |
f110bfc7 | 2604 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
2605 | propname, ret); |
2606 | return ret; | |
2607 | } | |
2608 | ||
2609 | return 0; | |
2610 | } | |
b07609ce | 2611 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); |
bec4fa05 | 2612 | |
9a6d4860 XL |
2613 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
2614 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
2615 | SND_SOC_DAPM_LINE("Line", NULL), | |
2616 | SND_SOC_DAPM_HP("Headphone", NULL), | |
2617 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
2618 | }; | |
2619 | ||
21efde50 | 2620 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, |
9a6d4860 XL |
2621 | const char *propname) |
2622 | { | |
21efde50 | 2623 | struct device_node *np = card->dev->of_node; |
9a6d4860 XL |
2624 | struct snd_soc_dapm_widget *widgets; |
2625 | const char *template, *wname; | |
2626 | int i, j, num_widgets, ret; | |
2627 | ||
2628 | num_widgets = of_property_count_strings(np, propname); | |
2629 | if (num_widgets < 0) { | |
2630 | dev_err(card->dev, | |
2631 | "ASoC: Property '%s' does not exist\n", propname); | |
2632 | return -EINVAL; | |
2633 | } | |
2634 | if (num_widgets & 1) { | |
2635 | dev_err(card->dev, | |
2636 | "ASoC: Property '%s' length is not even\n", propname); | |
2637 | return -EINVAL; | |
2638 | } | |
2639 | ||
2640 | num_widgets /= 2; | |
2641 | if (!num_widgets) { | |
2642 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
2643 | propname); | |
2644 | return -EINVAL; | |
2645 | } | |
2646 | ||
2647 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
2648 | GFP_KERNEL); | |
2649 | if (!widgets) { | |
2650 | dev_err(card->dev, | |
2651 | "ASoC: Could not allocate memory for widgets\n"); | |
2652 | return -ENOMEM; | |
2653 | } | |
2654 | ||
2655 | for (i = 0; i < num_widgets; i++) { | |
2656 | ret = of_property_read_string_index(np, propname, | |
2657 | 2 * i, &template); | |
2658 | if (ret) { | |
2659 | dev_err(card->dev, | |
2660 | "ASoC: Property '%s' index %d read error:%d\n", | |
2661 | propname, 2 * i, ret); | |
2662 | return -EINVAL; | |
2663 | } | |
2664 | ||
2665 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
2666 | if (!strncmp(template, simple_widgets[j].name, | |
2667 | strlen(simple_widgets[j].name))) { | |
2668 | widgets[i] = simple_widgets[j]; | |
2669 | break; | |
2670 | } | |
2671 | } | |
2672 | ||
2673 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
2674 | dev_err(card->dev, | |
2675 | "ASoC: DAPM widget '%s' is not supported\n", | |
2676 | template); | |
2677 | return -EINVAL; | |
2678 | } | |
2679 | ||
2680 | ret = of_property_read_string_index(np, propname, | |
2681 | (2 * i) + 1, | |
2682 | &wname); | |
2683 | if (ret) { | |
2684 | dev_err(card->dev, | |
2685 | "ASoC: Property '%s' index %d read error:%d\n", | |
2686 | propname, (2 * i) + 1, ret); | |
2687 | return -EINVAL; | |
2688 | } | |
2689 | ||
2690 | widgets[i].name = wname; | |
2691 | } | |
2692 | ||
f23e860e NC |
2693 | card->of_dapm_widgets = widgets; |
2694 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
2695 | |
2696 | return 0; | |
2697 | } | |
21efde50 | 2698 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); |
9a6d4860 | 2699 | |
cbdfab3b JB |
2700 | int snd_soc_of_get_slot_mask(struct device_node *np, |
2701 | const char *prop_name, | |
2702 | unsigned int *mask) | |
6131084a JS |
2703 | { |
2704 | u32 val; | |
6c84e591 | 2705 | const __be32 *of_slot_mask = of_get_property(np, prop_name, &val); |
6131084a JS |
2706 | int i; |
2707 | ||
2708 | if (!of_slot_mask) | |
2709 | return 0; | |
2710 | val /= sizeof(u32); | |
2711 | for (i = 0; i < val; i++) | |
2712 | if (be32_to_cpup(&of_slot_mask[i])) | |
2713 | *mask |= (1 << i); | |
2714 | ||
2715 | return val; | |
2716 | } | |
cbdfab3b | 2717 | EXPORT_SYMBOL_GPL(snd_soc_of_get_slot_mask); |
6131084a | 2718 | |
89c67857 | 2719 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
6131084a JS |
2720 | unsigned int *tx_mask, |
2721 | unsigned int *rx_mask, | |
89c67857 XL |
2722 | unsigned int *slots, |
2723 | unsigned int *slot_width) | |
2724 | { | |
2725 | u32 val; | |
2726 | int ret; | |
2727 | ||
6131084a JS |
2728 | if (tx_mask) |
2729 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask); | |
2730 | if (rx_mask) | |
2731 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask); | |
2732 | ||
89c67857 XL |
2733 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { |
2734 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
2735 | if (ret) | |
2736 | return ret; | |
2737 | ||
2738 | if (slots) | |
2739 | *slots = val; | |
2740 | } | |
2741 | ||
2742 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
2743 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
2744 | if (ret) | |
2745 | return ret; | |
2746 | ||
2747 | if (slot_width) | |
2748 | *slot_width = val; | |
2749 | } | |
2750 | ||
2751 | return 0; | |
2752 | } | |
2753 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
2754 | ||
3b710356 KM |
2755 | void snd_soc_of_parse_node_prefix(struct device_node *np, |
2756 | struct snd_soc_codec_conf *codec_conf, | |
2757 | struct device_node *of_node, | |
2758 | const char *propname) | |
5e3cdaa2 | 2759 | { |
5e3cdaa2 KM |
2760 | const char *str; |
2761 | int ret; | |
2762 | ||
2763 | ret = of_property_read_string(np, propname, &str); | |
2764 | if (ret < 0) { | |
2765 | /* no prefix is not error */ | |
2766 | return; | |
2767 | } | |
2768 | ||
c13493a2 | 2769 | codec_conf->dlc.of_node = of_node; |
5e3cdaa2 KM |
2770 | codec_conf->name_prefix = str; |
2771 | } | |
3b710356 | 2772 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_node_prefix); |
5e3cdaa2 | 2773 | |
2bc644af | 2774 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
a4a54dd5 SW |
2775 | const char *propname) |
2776 | { | |
2bc644af | 2777 | struct device_node *np = card->dev->of_node; |
e3b1e6a1 | 2778 | int num_routes; |
a4a54dd5 SW |
2779 | struct snd_soc_dapm_route *routes; |
2780 | int i, ret; | |
2781 | ||
2782 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 2783 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
2784 | dev_err(card->dev, |
2785 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
2786 | propname); | |
a4a54dd5 SW |
2787 | return -EINVAL; |
2788 | } | |
2789 | num_routes /= 2; | |
2790 | if (!num_routes) { | |
f110bfc7 | 2791 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
2792 | propname); |
2793 | return -EINVAL; | |
2794 | } | |
2795 | ||
a86854d0 | 2796 | routes = devm_kcalloc(card->dev, num_routes, sizeof(*routes), |
a4a54dd5 SW |
2797 | GFP_KERNEL); |
2798 | if (!routes) { | |
2799 | dev_err(card->dev, | |
f110bfc7 | 2800 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
2801 | return -EINVAL; |
2802 | } | |
2803 | ||
2804 | for (i = 0; i < num_routes; i++) { | |
2805 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 2806 | 2 * i, &routes[i].sink); |
a4a54dd5 | 2807 | if (ret) { |
c871bd0b MB |
2808 | dev_err(card->dev, |
2809 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
2810 | propname, 2 * i, ret); | |
a4a54dd5 SW |
2811 | return -EINVAL; |
2812 | } | |
2813 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 2814 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
2815 | if (ret) { |
2816 | dev_err(card->dev, | |
c871bd0b MB |
2817 | "ASoC: Property '%s' index %d could not be read: %d\n", |
2818 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
2819 | return -EINVAL; |
2820 | } | |
2821 | } | |
2822 | ||
f23e860e NC |
2823 | card->num_of_dapm_routes = num_routes; |
2824 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
2825 | |
2826 | return 0; | |
2827 | } | |
2bc644af | 2828 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); |
a4a54dd5 | 2829 | |
a7930ed4 | 2830 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
2831 | const char *prefix, |
2832 | struct device_node **bitclkmaster, | |
2833 | struct device_node **framemaster) | |
a7930ed4 KM |
2834 | { |
2835 | int ret, i; | |
2836 | char prop[128]; | |
2837 | unsigned int format = 0; | |
2838 | int bit, frame; | |
2839 | const char *str; | |
2840 | struct { | |
2841 | char *name; | |
2842 | unsigned int val; | |
2843 | } of_fmt_table[] = { | |
2844 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
2845 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
2846 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
2847 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
2848 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
2849 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
2850 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
2851 | { "msb", SND_SOC_DAIFMT_MSB }, | |
2852 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
2853 | }; |
2854 | ||
2855 | if (!prefix) | |
2856 | prefix = ""; | |
2857 | ||
2858 | /* | |
5711c979 KM |
2859 | * check "dai-format = xxx" |
2860 | * or "[prefix]format = xxx" | |
a7930ed4 KM |
2861 | * SND_SOC_DAIFMT_FORMAT_MASK area |
2862 | */ | |
5711c979 KM |
2863 | ret = of_property_read_string(np, "dai-format", &str); |
2864 | if (ret < 0) { | |
2865 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
2866 | ret = of_property_read_string(np, prop, &str); | |
2867 | } | |
a7930ed4 KM |
2868 | if (ret == 0) { |
2869 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
2870 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
2871 | format |= of_fmt_table[i].val; | |
2872 | break; | |
2873 | } | |
2874 | } | |
2875 | } | |
2876 | ||
2877 | /* | |
8c2d6a9f | 2878 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
2879 | * SND_SOC_DAIFMT_CLOCK_MASK area |
2880 | */ | |
8c2d6a9f | 2881 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
51930295 | 2882 | if (of_property_read_bool(np, prop)) |
8c2d6a9f KM |
2883 | format |= SND_SOC_DAIFMT_CONT; |
2884 | else | |
2885 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
2886 | |
2887 | /* | |
2888 | * check "[prefix]bitclock-inversion" | |
2889 | * check "[prefix]frame-inversion" | |
2890 | * SND_SOC_DAIFMT_INV_MASK area | |
2891 | */ | |
2892 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
2893 | bit = !!of_get_property(np, prop, NULL); | |
2894 | ||
2895 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
2896 | frame = !!of_get_property(np, prop, NULL); | |
2897 | ||
2898 | switch ((bit << 4) + frame) { | |
2899 | case 0x11: | |
2900 | format |= SND_SOC_DAIFMT_IB_IF; | |
2901 | break; | |
2902 | case 0x10: | |
2903 | format |= SND_SOC_DAIFMT_IB_NF; | |
2904 | break; | |
2905 | case 0x01: | |
2906 | format |= SND_SOC_DAIFMT_NB_IF; | |
2907 | break; | |
2908 | default: | |
2909 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
2910 | break; | |
2911 | } | |
2912 | ||
2913 | /* | |
2914 | * check "[prefix]bitclock-master" | |
2915 | * check "[prefix]frame-master" | |
2916 | * SND_SOC_DAIFMT_MASTER_MASK area | |
2917 | */ | |
2918 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
2919 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
2920 | if (bit && bitclkmaster) |
2921 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
2922 | |
2923 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
2924 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
2925 | if (frame && framemaster) |
2926 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
2927 | |
2928 | switch ((bit << 4) + frame) { | |
2929 | case 0x11: | |
2930 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
2931 | break; | |
2932 | case 0x10: | |
2933 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
2934 | break; | |
2935 | case 0x01: | |
2936 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
2937 | break; | |
2938 | default: | |
2939 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
2940 | break; | |
2941 | } | |
2942 | ||
2943 | return format; | |
2944 | } | |
2945 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
2946 | ||
a180e8b9 KM |
2947 | int snd_soc_get_dai_id(struct device_node *ep) |
2948 | { | |
09d4cc03 | 2949 | struct snd_soc_component *component; |
c1e230f0 | 2950 | struct snd_soc_dai_link_component dlc; |
a180e8b9 KM |
2951 | int ret; |
2952 | ||
c1e230f0 KM |
2953 | dlc.of_node = of_graph_get_port_parent(ep); |
2954 | dlc.name = NULL; | |
a180e8b9 KM |
2955 | /* |
2956 | * For example HDMI case, HDMI has video/sound port, | |
2957 | * but ALSA SoC needs sound port number only. | |
2958 | * Thus counting HDMI DT port/endpoint doesn't work. | |
2959 | * Then, it should have .of_xlate_dai_id | |
2960 | */ | |
2961 | ret = -ENOTSUPP; | |
2962 | mutex_lock(&client_mutex); | |
c1e230f0 | 2963 | component = soc_find_component(&dlc); |
2c7b1704 KM |
2964 | if (component) |
2965 | ret = snd_soc_component_of_xlate_dai_id(component, ep); | |
a180e8b9 KM |
2966 | mutex_unlock(&client_mutex); |
2967 | ||
c1e230f0 | 2968 | of_node_put(dlc.of_node); |
c0a480d1 | 2969 | |
a180e8b9 KM |
2970 | return ret; |
2971 | } | |
2972 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_id); | |
2973 | ||
1ad8ec53 | 2974 | int snd_soc_get_dai_name(struct of_phandle_args *args, |
93b0f3ee | 2975 | const char **dai_name) |
cb470087 KM |
2976 | { |
2977 | struct snd_soc_component *pos; | |
3e0aa8d8 | 2978 | struct device_node *component_of_node; |
93b0f3ee | 2979 | int ret = -EPROBE_DEFER; |
cb470087 KM |
2980 | |
2981 | mutex_lock(&client_mutex); | |
368dee94 | 2982 | for_each_component(pos) { |
c0834440 | 2983 | component_of_node = soc_component_to_node(pos); |
3e0aa8d8 JS |
2984 | |
2985 | if (component_of_node != args->np) | |
cb470087 KM |
2986 | continue; |
2987 | ||
a2a34175 KM |
2988 | ret = snd_soc_component_of_xlate_dai_name(pos, args, dai_name); |
2989 | if (ret == -ENOTSUPP) { | |
58bf4179 | 2990 | struct snd_soc_dai *dai; |
6833c452 KM |
2991 | int id = -1; |
2992 | ||
93b0f3ee | 2993 | switch (args->args_count) { |
6833c452 KM |
2994 | case 0: |
2995 | id = 0; /* same as dai_drv[0] */ | |
2996 | break; | |
2997 | case 1: | |
93b0f3ee | 2998 | id = args->args[0]; |
6833c452 KM |
2999 | break; |
3000 | default: | |
3001 | /* not supported */ | |
3002 | break; | |
3003 | } | |
3004 | ||
3005 | if (id < 0 || id >= pos->num_dai) { | |
3006 | ret = -EINVAL; | |
3dcba280 | 3007 | continue; |
6833c452 | 3008 | } |
e41975ed XL |
3009 | |
3010 | ret = 0; | |
3011 | ||
58bf4179 | 3012 | /* find target DAI */ |
15a0c645 | 3013 | for_each_component_dais(pos, dai) { |
58bf4179 KM |
3014 | if (id == 0) |
3015 | break; | |
3016 | id--; | |
3017 | } | |
3018 | ||
3019 | *dai_name = dai->driver->name; | |
e41975ed XL |
3020 | if (!*dai_name) |
3021 | *dai_name = pos->name; | |
1dfa5a5a JB |
3022 | } else if (ret) { |
3023 | /* | |
3024 | * if another error than ENOTSUPP is returned go on and | |
3025 | * check if another component is provided with the same | |
3026 | * node. This may happen if a device provides several | |
3027 | * components | |
3028 | */ | |
3029 | continue; | |
cb470087 KM |
3030 | } |
3031 | ||
cb470087 KM |
3032 | break; |
3033 | } | |
3034 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3035 | return ret; |
3036 | } | |
1ad8ec53 | 3037 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); |
93b0f3ee JFM |
3038 | |
3039 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3040 | const char **dai_name) | |
3041 | { | |
3042 | struct of_phandle_args args; | |
3043 | int ret; | |
3044 | ||
3045 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3046 | "#sound-dai-cells", 0, &args); | |
3047 | if (ret) | |
3048 | return ret; | |
3049 | ||
3050 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3051 | |
3052 | of_node_put(args.np); | |
3053 | ||
3054 | return ret; | |
3055 | } | |
3056 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3057 | ||
94685763 SN |
3058 | /* |
3059 | * snd_soc_of_put_dai_link_codecs - Dereference device nodes in the codecs array | |
3060 | * @dai_link: DAI link | |
3061 | * | |
3062 | * Dereference device nodes acquired by snd_soc_of_get_dai_link_codecs(). | |
3063 | */ | |
3064 | void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link) | |
3065 | { | |
3db769f1 | 3066 | struct snd_soc_dai_link_component *component; |
94685763 SN |
3067 | int index; |
3068 | ||
3db769f1 | 3069 | for_each_link_codecs(dai_link, index, component) { |
94685763 SN |
3070 | if (!component->of_node) |
3071 | break; | |
3072 | of_node_put(component->of_node); | |
3073 | component->of_node = NULL; | |
3074 | } | |
3075 | } | |
3076 | EXPORT_SYMBOL_GPL(snd_soc_of_put_dai_link_codecs); | |
3077 | ||
93b0f3ee JFM |
3078 | /* |
3079 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3080 | * @dev: Card device | |
3081 | * @of_node: Device node | |
3082 | * @dai_link: DAI link | |
3083 | * | |
3084 | * Builds an array of CODEC DAI components from the DAI link property | |
3085 | * 'sound-dai'. | |
3086 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
94685763 SN |
3087 | * The device nodes in the array (of_node) must be dereferenced by calling |
3088 | * snd_soc_of_put_dai_link_codecs() on @dai_link. | |
93b0f3ee JFM |
3089 | * |
3090 | * Returns 0 for success | |
3091 | */ | |
3092 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3093 | struct device_node *of_node, | |
3094 | struct snd_soc_dai_link *dai_link) | |
3095 | { | |
3096 | struct of_phandle_args args; | |
3097 | struct snd_soc_dai_link_component *component; | |
3098 | char *name; | |
3099 | int index, num_codecs, ret; | |
3100 | ||
3101 | /* Count the number of CODECs */ | |
3102 | name = "sound-dai"; | |
3103 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3104 | "#sound-dai-cells"); | |
3105 | if (num_codecs <= 0) { | |
3106 | if (num_codecs == -ENOENT) | |
3107 | dev_err(dev, "No 'sound-dai' property\n"); | |
3108 | else | |
3109 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3110 | return num_codecs; | |
3111 | } | |
a86854d0 KC |
3112 | component = devm_kcalloc(dev, |
3113 | num_codecs, sizeof(*component), | |
93b0f3ee JFM |
3114 | GFP_KERNEL); |
3115 | if (!component) | |
3116 | return -ENOMEM; | |
3117 | dai_link->codecs = component; | |
3118 | dai_link->num_codecs = num_codecs; | |
3119 | ||
3120 | /* Parse the list */ | |
3db769f1 | 3121 | for_each_link_codecs(dai_link, index, component) { |
93b0f3ee JFM |
3122 | ret = of_parse_phandle_with_args(of_node, name, |
3123 | "#sound-dai-cells", | |
2c7b696a | 3124 | index, &args); |
93b0f3ee JFM |
3125 | if (ret) |
3126 | goto err; | |
3127 | component->of_node = args.np; | |
3128 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3129 | if (ret < 0) | |
3130 | goto err; | |
3131 | } | |
3132 | return 0; | |
3133 | err: | |
94685763 | 3134 | snd_soc_of_put_dai_link_codecs(dai_link); |
93b0f3ee JFM |
3135 | dai_link->codecs = NULL; |
3136 | dai_link->num_codecs = 0; | |
3137 | return ret; | |
3138 | } | |
3139 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3140 | ||
c9b3a40f | 3141 | static int __init snd_soc_init(void) |
db2a4165 | 3142 | { |
6553bf06 | 3143 | snd_soc_debugfs_init(); |
fb257897 MB |
3144 | snd_soc_util_init(); |
3145 | ||
db2a4165 FM |
3146 | return platform_driver_register(&soc_driver); |
3147 | } | |
4abe8e16 | 3148 | module_init(snd_soc_init); |
db2a4165 | 3149 | |
7d8c16a6 | 3150 | static void __exit snd_soc_exit(void) |
db2a4165 | 3151 | { |
fb257897 | 3152 | snd_soc_util_exit(); |
6553bf06 | 3153 | snd_soc_debugfs_exit(); |
fb257897 | 3154 | |
3ff3f64b | 3155 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3156 | } |
db2a4165 FM |
3157 | module_exit(snd_soc_exit); |
3158 | ||
3159 | /* Module information */ | |
d331124d | 3160 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3161 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3162 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3163 | MODULE_ALIAS("platform:soc-audio"); |