Commit | Line | Data |
---|---|---|
db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
741a509f | 33 | #include <linux/pinctrl/consumer.h> |
f0e8ed85 | 34 | #include <linux/ctype.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
bec4fa05 | 36 | #include <linux/of.h> |
a180e8b9 | 37 | #include <linux/of_graph.h> |
345233d7 | 38 | #include <linux/dmi.h> |
db2a4165 | 39 | #include <sound/core.h> |
3028eb8c | 40 | #include <sound/jack.h> |
db2a4165 FM |
41 | #include <sound/pcm.h> |
42 | #include <sound/pcm_params.h> | |
43 | #include <sound/soc.h> | |
01d7584c | 44 | #include <sound/soc-dpcm.h> |
8a978234 | 45 | #include <sound/soc-topology.h> |
db2a4165 FM |
46 | #include <sound/initval.h> |
47 | ||
a8b1d34f MB |
48 | #define CREATE_TRACE_POINTS |
49 | #include <trace/events/asoc.h> | |
50 | ||
f0fba2ad LG |
51 | #define NAME_SIZE 32 |
52 | ||
384c89e2 | 53 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
54 | struct dentry *snd_soc_debugfs_root; |
55 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
56 | #endif |
57 | ||
c5af3a2e | 58 | static DEFINE_MUTEX(client_mutex); |
030e79f6 | 59 | static LIST_HEAD(component_list); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
98faf436 ML |
70 | /* If a DMI filed contain strings in this blacklist (e.g. |
71 | * "Type2 - Board Manufacturer" or "Type1 - TBD by OEM"), it will be taken | |
72 | * as invalid and dropped when setting the card long name from DMI info. | |
73 | */ | |
74 | static const char * const dmi_blacklist[] = { | |
75 | "To be filled by OEM", | |
76 | "TBD by OEM", | |
77 | "Default String", | |
78 | "Board Manufacturer", | |
79 | "Board Vendor Name", | |
80 | "Board Product Name", | |
81 | NULL, /* terminator */ | |
82 | }; | |
83 | ||
dbe21408 MB |
84 | static ssize_t pmdown_time_show(struct device *dev, |
85 | struct device_attribute *attr, char *buf) | |
86 | { | |
36ae1a96 | 87 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 88 | |
f0fba2ad | 89 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
90 | } |
91 | ||
92 | static ssize_t pmdown_time_set(struct device *dev, | |
93 | struct device_attribute *attr, | |
94 | const char *buf, size_t count) | |
95 | { | |
36ae1a96 | 96 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 97 | int ret; |
dbe21408 | 98 | |
b785a492 | 99 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
100 | if (ret) |
101 | return ret; | |
dbe21408 MB |
102 | |
103 | return count; | |
104 | } | |
105 | ||
106 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
107 | ||
d29697dc | 108 | static struct attribute *soc_dev_attrs[] = { |
d29697dc TI |
109 | &dev_attr_pmdown_time.attr, |
110 | NULL | |
111 | }; | |
112 | ||
113 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
114 | struct attribute *attr, int idx) | |
115 | { | |
116 | struct device *dev = kobj_to_dev(kobj); | |
117 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
118 | ||
119 | if (attr == &dev_attr_pmdown_time.attr) | |
120 | return attr->mode; /* always visible */ | |
3b6eed8d | 121 | return rtd->num_codecs ? attr->mode : 0; /* enabled only with codec */ |
d29697dc TI |
122 | } |
123 | ||
124 | static const struct attribute_group soc_dapm_dev_group = { | |
125 | .attrs = soc_dapm_dev_attrs, | |
126 | .is_visible = soc_dev_attr_is_visible, | |
127 | }; | |
128 | ||
f7e73b26 | 129 | static const struct attribute_group soc_dev_group = { |
d29697dc TI |
130 | .attrs = soc_dev_attrs, |
131 | .is_visible = soc_dev_attr_is_visible, | |
132 | }; | |
133 | ||
134 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
135 | &soc_dapm_dev_group, | |
f7e73b26 | 136 | &soc_dev_group, |
d29697dc TI |
137 | NULL |
138 | }; | |
139 | ||
2624d5fa | 140 | #ifdef CONFIG_DEBUG_FS |
81c7cfd1 | 141 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 142 | { |
6553bf06 LPC |
143 | if (!component->card->debugfs_card_root) |
144 | return; | |
145 | ||
81c7cfd1 LPC |
146 | if (component->debugfs_prefix) { |
147 | char *name; | |
e73f3de5 | 148 | |
81c7cfd1 LPC |
149 | name = kasprintf(GFP_KERNEL, "%s:%s", |
150 | component->debugfs_prefix, component->name); | |
151 | if (name) { | |
152 | component->debugfs_root = debugfs_create_dir(name, | |
153 | component->card->debugfs_card_root); | |
154 | kfree(name); | |
155 | } | |
156 | } else { | |
157 | component->debugfs_root = debugfs_create_dir(component->name, | |
158 | component->card->debugfs_card_root); | |
159 | } | |
e73f3de5 | 160 | |
81c7cfd1 LPC |
161 | if (!component->debugfs_root) { |
162 | dev_warn(component->dev, | |
163 | "ASoC: Failed to create component debugfs directory\n"); | |
164 | return; | |
165 | } | |
e73f3de5 | 166 | |
81c7cfd1 LPC |
167 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
168 | component->debugfs_root); | |
e73f3de5 RK |
169 | } |
170 | ||
81c7cfd1 | 171 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 172 | { |
81c7cfd1 LPC |
173 | debugfs_remove_recursive(component->debugfs_root); |
174 | } | |
d6ce4cf3 | 175 | |
c15b2a1d | 176 | static int dai_list_show(struct seq_file *m, void *v) |
f3208780 | 177 | { |
1438c2f6 | 178 | struct snd_soc_component *component; |
f3208780 MB |
179 | struct snd_soc_dai *dai; |
180 | ||
34e81ab4 LPC |
181 | mutex_lock(&client_mutex); |
182 | ||
700c17ca DP |
183 | list_for_each_entry(component, &component_list, list) |
184 | list_for_each_entry(dai, &component->dai_list, list) | |
185 | seq_printf(m, "%s\n", dai->name); | |
f3208780 | 186 | |
34e81ab4 LPC |
187 | mutex_unlock(&client_mutex); |
188 | ||
700c17ca DP |
189 | return 0; |
190 | } | |
c15b2a1d | 191 | DEFINE_SHOW_ATTRIBUTE(dai_list); |
f3208780 | 192 | |
db795f9b KM |
193 | static int component_list_show(struct seq_file *m, void *v) |
194 | { | |
195 | struct snd_soc_component *component; | |
196 | ||
197 | mutex_lock(&client_mutex); | |
198 | ||
199 | list_for_each_entry(component, &component_list, list) | |
200 | seq_printf(m, "%s\n", component->name); | |
201 | ||
202 | mutex_unlock(&client_mutex); | |
203 | ||
204 | return 0; | |
205 | } | |
206 | DEFINE_SHOW_ATTRIBUTE(component_list); | |
207 | ||
a6052154 JN |
208 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
209 | { | |
6553bf06 LPC |
210 | if (!snd_soc_debugfs_root) |
211 | return; | |
212 | ||
a6052154 | 213 | card->debugfs_card_root = debugfs_create_dir(card->name, |
8a9dab1a | 214 | snd_soc_debugfs_root); |
3a45b867 | 215 | if (!card->debugfs_card_root) { |
a6052154 | 216 | dev_warn(card->dev, |
7c08be84 | 217 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
218 | return; |
219 | } | |
220 | ||
221 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
222 | card->debugfs_card_root, | |
223 | &card->pop_time); | |
224 | if (!card->debugfs_pop_time) | |
225 | dev_warn(card->dev, | |
f110bfc7 | 226 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
227 | } |
228 | ||
229 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
230 | { | |
231 | debugfs_remove_recursive(card->debugfs_card_root); | |
232 | } | |
233 | ||
6553bf06 LPC |
234 | static void snd_soc_debugfs_init(void) |
235 | { | |
236 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); | |
d9a02c55 | 237 | if (IS_ERR_OR_NULL(snd_soc_debugfs_root)) { |
6553bf06 LPC |
238 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
239 | snd_soc_debugfs_root = NULL; | |
240 | return; | |
241 | } | |
242 | ||
6553bf06 LPC |
243 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
244 | &dai_list_fops)) | |
245 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
db795f9b KM |
246 | |
247 | if (!debugfs_create_file("components", 0444, snd_soc_debugfs_root, NULL, | |
248 | &component_list_fops)) | |
249 | pr_warn("ASoC: Failed to create component list debugfs file\n"); | |
6553bf06 LPC |
250 | } |
251 | ||
252 | static void snd_soc_debugfs_exit(void) | |
253 | { | |
254 | debugfs_remove_recursive(snd_soc_debugfs_root); | |
255 | } | |
256 | ||
2624d5fa MB |
257 | #else |
258 | ||
81c7cfd1 LPC |
259 | static inline void soc_init_component_debugfs( |
260 | struct snd_soc_component *component) | |
731f1ab2 SG |
261 | { |
262 | } | |
263 | ||
81c7cfd1 LPC |
264 | static inline void soc_cleanup_component_debugfs( |
265 | struct snd_soc_component *component) | |
731f1ab2 SG |
266 | { |
267 | } | |
268 | ||
b95fccbc AL |
269 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
270 | { | |
271 | } | |
272 | ||
273 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
274 | { | |
275 | } | |
6553bf06 LPC |
276 | |
277 | static inline void snd_soc_debugfs_init(void) | |
278 | { | |
279 | } | |
280 | ||
281 | static inline void snd_soc_debugfs_exit(void) | |
282 | { | |
283 | } | |
284 | ||
2624d5fa MB |
285 | #endif |
286 | ||
a0ac4411 KM |
287 | static int snd_soc_rtdcom_add(struct snd_soc_pcm_runtime *rtd, |
288 | struct snd_soc_component *component) | |
289 | { | |
290 | struct snd_soc_rtdcom_list *rtdcom; | |
291 | struct snd_soc_rtdcom_list *new_rtdcom; | |
292 | ||
293 | for_each_rtdcom(rtd, rtdcom) { | |
294 | /* already connected */ | |
295 | if (rtdcom->component == component) | |
296 | return 0; | |
297 | } | |
298 | ||
299 | new_rtdcom = kmalloc(sizeof(*new_rtdcom), GFP_KERNEL); | |
300 | if (!new_rtdcom) | |
301 | return -ENOMEM; | |
302 | ||
303 | new_rtdcom->component = component; | |
304 | INIT_LIST_HEAD(&new_rtdcom->list); | |
305 | ||
306 | list_add_tail(&new_rtdcom->list, &rtd->component_list); | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
311 | static void snd_soc_rtdcom_del_all(struct snd_soc_pcm_runtime *rtd) | |
312 | { | |
313 | struct snd_soc_rtdcom_list *rtdcom1, *rtdcom2; | |
314 | ||
315 | for_each_rtdcom_safe(rtd, rtdcom1, rtdcom2) | |
316 | kfree(rtdcom1); | |
317 | ||
318 | INIT_LIST_HEAD(&rtd->component_list); | |
319 | } | |
320 | ||
321 | struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, | |
322 | const char *driver_name) | |
323 | { | |
324 | struct snd_soc_rtdcom_list *rtdcom; | |
325 | ||
971da24c KM |
326 | if (!driver_name) |
327 | return NULL; | |
328 | ||
a0ac4411 | 329 | for_each_rtdcom(rtd, rtdcom) { |
971da24c KM |
330 | const char *component_name = rtdcom->component->driver->name; |
331 | ||
332 | if (!component_name) | |
333 | continue; | |
334 | ||
335 | if ((component_name == driver_name) || | |
336 | strcmp(component_name, driver_name) == 0) | |
a0ac4411 KM |
337 | return rtdcom->component; |
338 | } | |
339 | ||
340 | return NULL; | |
341 | } | |
031734b7 | 342 | EXPORT_SYMBOL_GPL(snd_soc_rtdcom_lookup); |
a0ac4411 | 343 | |
47c88fff LG |
344 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
345 | const char *dai_link, int stream) | |
346 | { | |
1a497983 | 347 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 348 | |
1a497983 ML |
349 | list_for_each_entry(rtd, &card->rtd_list, list) { |
350 | if (rtd->dai_link->no_pcm && | |
351 | !strcmp(rtd->dai_link->name, dai_link)) | |
352 | return rtd->pcm->streams[stream].substream; | |
47c88fff | 353 | } |
f110bfc7 | 354 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
355 | return NULL; |
356 | } | |
357 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
358 | ||
75ab9eb6 KM |
359 | static const struct snd_soc_ops null_snd_soc_ops; |
360 | ||
1a497983 ML |
361 | static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( |
362 | struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) | |
363 | { | |
364 | struct snd_soc_pcm_runtime *rtd; | |
365 | ||
366 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
367 | if (!rtd) | |
368 | return NULL; | |
369 | ||
a0ac4411 | 370 | INIT_LIST_HEAD(&rtd->component_list); |
1a497983 ML |
371 | rtd->card = card; |
372 | rtd->dai_link = dai_link; | |
75ab9eb6 KM |
373 | if (!rtd->dai_link->ops) |
374 | rtd->dai_link->ops = &null_snd_soc_ops; | |
375 | ||
1a497983 ML |
376 | rtd->codec_dais = kzalloc(sizeof(struct snd_soc_dai *) * |
377 | dai_link->num_codecs, | |
378 | GFP_KERNEL); | |
379 | if (!rtd->codec_dais) { | |
380 | kfree(rtd); | |
381 | return NULL; | |
382 | } | |
383 | ||
384 | return rtd; | |
385 | } | |
386 | ||
387 | static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) | |
388 | { | |
db1721f5 | 389 | kfree(rtd->codec_dais); |
a0ac4411 | 390 | snd_soc_rtdcom_del_all(rtd); |
1a497983 ML |
391 | kfree(rtd); |
392 | } | |
393 | ||
394 | static void soc_add_pcm_runtime(struct snd_soc_card *card, | |
395 | struct snd_soc_pcm_runtime *rtd) | |
396 | { | |
397 | list_add_tail(&rtd->list, &card->rtd_list); | |
398 | rtd->num = card->num_rtd; | |
399 | card->num_rtd++; | |
400 | } | |
401 | ||
402 | static void soc_remove_pcm_runtimes(struct snd_soc_card *card) | |
403 | { | |
404 | struct snd_soc_pcm_runtime *rtd, *_rtd; | |
405 | ||
406 | list_for_each_entry_safe(rtd, _rtd, &card->rtd_list, list) { | |
407 | list_del(&rtd->list); | |
408 | soc_free_pcm_runtime(rtd); | |
409 | } | |
410 | ||
411 | card->num_rtd = 0; | |
412 | } | |
413 | ||
47c88fff LG |
414 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, |
415 | const char *dai_link) | |
416 | { | |
1a497983 | 417 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 418 | |
1a497983 ML |
419 | list_for_each_entry(rtd, &card->rtd_list, list) { |
420 | if (!strcmp(rtd->dai_link->name, dai_link)) | |
421 | return rtd; | |
47c88fff | 422 | } |
f110bfc7 | 423 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
424 | return NULL; |
425 | } | |
426 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
427 | ||
9d58a077 RF |
428 | static void codec2codec_close_delayed_work(struct work_struct *work) |
429 | { | |
430 | /* Currently nothing to do for c2c links | |
431 | * Since c2c links are internal nodes in the DAPM graph and | |
432 | * don't interface with the outside world or application layer | |
433 | * we don't have to do any special handling on close. | |
434 | */ | |
435 | } | |
436 | ||
6f8ab4ac | 437 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 438 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 439 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 440 | { |
6f8ab4ac | 441 | struct snd_soc_card *card = dev_get_drvdata(dev); |
d9fc4063 | 442 | struct snd_soc_component *component; |
1a497983 ML |
443 | struct snd_soc_pcm_runtime *rtd; |
444 | int i; | |
db2a4165 | 445 | |
c5599b87 LPC |
446 | /* If the card is not initialized yet there is nothing to do */ |
447 | if (!card->instantiated) | |
e3509ff0 DM |
448 | return 0; |
449 | ||
6ed25978 AG |
450 | /* Due to the resume being scheduled into a workqueue we could |
451 | * suspend before that's finished - wait for it to complete. | |
452 | */ | |
f0fba2ad | 453 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
454 | |
455 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 456 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 457 | |
a00f90f9 | 458 | /* mute any active DACs */ |
1a497983 | 459 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 460 | |
1a497983 | 461 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
462 | continue; |
463 | ||
1a497983 ML |
464 | for (i = 0; i < rtd->num_codecs; i++) { |
465 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
466 | struct snd_soc_dai_driver *drv = dai->driver; |
467 | ||
468 | if (drv->ops->digital_mute && dai->playback_active) | |
469 | drv->ops->digital_mute(dai, 1); | |
470 | } | |
db2a4165 FM |
471 | } |
472 | ||
4ccab3e7 | 473 | /* suspend all pcms */ |
1a497983 ML |
474 | list_for_each_entry(rtd, &card->rtd_list, list) { |
475 | if (rtd->dai_link->ignore_suspend) | |
3efab7dc MB |
476 | continue; |
477 | ||
1a497983 | 478 | snd_pcm_suspend_all(rtd->pcm); |
3efab7dc | 479 | } |
4ccab3e7 | 480 | |
87506549 | 481 | if (card->suspend_pre) |
70b2ac12 | 482 | card->suspend_pre(card); |
db2a4165 | 483 | |
1a497983 ML |
484 | list_for_each_entry(rtd, &card->rtd_list, list) { |
485 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 486 | |
1a497983 | 487 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
488 | continue; |
489 | ||
bc263214 | 490 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 491 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
492 | } |
493 | ||
37660b6d | 494 | /* close any waiting streams */ |
1a497983 ML |
495 | list_for_each_entry(rtd, &card->rtd_list, list) |
496 | flush_delayed_work(&rtd->delayed_work); | |
db2a4165 | 497 | |
1a497983 | 498 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 499 | |
1a497983 | 500 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
501 | continue; |
502 | ||
1a497983 | 503 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 504 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 505 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 506 | |
1a497983 | 507 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 508 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 509 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
510 | } |
511 | ||
8be4da29 LPC |
512 | /* Recheck all endpoints too, their state is affected by suspend */ |
513 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
514 | snd_soc_dapm_sync(&card->dapm); |
515 | ||
9178feb4 | 516 | /* suspend all COMPONENTs */ |
d9fc4063 KM |
517 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
518 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); | |
d9fc4063 | 519 | |
9178feb4 | 520 | /* If there are paths active then the COMPONENT will be held with |
f0fba2ad | 521 | * bias _ON and should not be suspended. */ |
9178feb4 | 522 | if (!component->suspended) { |
4890140f | 523 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
f0fba2ad | 524 | case SND_SOC_BIAS_STANDBY: |
125a25da | 525 | /* |
9178feb4 | 526 | * If the COMPONENT is capable of idle |
125a25da MB |
527 | * bias off then being in STANDBY |
528 | * means it's doing something, | |
529 | * otherwise fall through. | |
530 | */ | |
4890140f | 531 | if (dapm->idle_bias_off) { |
9178feb4 | 532 | dev_dbg(component->dev, |
10e8aa9a | 533 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
534 | break; |
535 | } | |
a8093297 | 536 | |
f0fba2ad | 537 | case SND_SOC_BIAS_OFF: |
999f7f5a KM |
538 | if (component->driver->suspend) |
539 | component->driver->suspend(component); | |
9178feb4 KM |
540 | component->suspended = 1; |
541 | if (component->regmap) | |
542 | regcache_mark_dirty(component->regmap); | |
988e8cc4 | 543 | /* deactivate pins to sleep state */ |
9178feb4 | 544 | pinctrl_pm_select_sleep_state(component->dev); |
f0fba2ad LG |
545 | break; |
546 | default: | |
9178feb4 KM |
547 | dev_dbg(component->dev, |
548 | "ASoC: COMPONENT is on over suspend\n"); | |
f0fba2ad LG |
549 | break; |
550 | } | |
1547aba9 MB |
551 | } |
552 | } | |
db2a4165 | 553 | |
1a497983 ML |
554 | list_for_each_entry(rtd, &card->rtd_list, list) { |
555 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 556 | |
1a497983 | 557 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
558 | continue; |
559 | ||
bc263214 | 560 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 561 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
562 | |
563 | /* deactivate pins to sleep state */ | |
564 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
565 | } |
566 | ||
87506549 | 567 | if (card->suspend_post) |
70b2ac12 | 568 | card->suspend_post(card); |
db2a4165 FM |
569 | |
570 | return 0; | |
571 | } | |
6f8ab4ac | 572 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 573 | |
6ed25978 AG |
574 | /* deferred resume work, so resume can complete before we finished |
575 | * setting our codec back up, which can be very slow on I2C | |
576 | */ | |
577 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 578 | { |
f0fba2ad LG |
579 | struct snd_soc_card *card = |
580 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1a497983 | 581 | struct snd_soc_pcm_runtime *rtd; |
d9fc4063 | 582 | struct snd_soc_component *component; |
1a497983 | 583 | int i; |
db2a4165 | 584 | |
6ed25978 AG |
585 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
586 | * so userspace apps are blocked from touching us | |
587 | */ | |
588 | ||
f110bfc7 | 589 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 590 | |
9949788b | 591 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 592 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 593 | |
87506549 | 594 | if (card->resume_pre) |
70b2ac12 | 595 | card->resume_pre(card); |
db2a4165 | 596 | |
bc263214 | 597 | /* resume control bus DAIs */ |
1a497983 ML |
598 | list_for_each_entry(rtd, &card->rtd_list, list) { |
599 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 600 | |
1a497983 | 601 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
602 | continue; |
603 | ||
bc263214 | 604 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
605 | cpu_dai->driver->resume(cpu_dai); |
606 | } | |
607 | ||
d9fc4063 | 608 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
9178feb4 | 609 | if (component->suspended) { |
999f7f5a KM |
610 | if (component->driver->resume) |
611 | component->driver->resume(component); | |
9178feb4 | 612 | component->suspended = 0; |
1547aba9 MB |
613 | } |
614 | } | |
db2a4165 | 615 | |
1a497983 | 616 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 617 | |
1a497983 | 618 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
619 | continue; |
620 | ||
1a497983 | 621 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 622 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 623 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 624 | |
1a497983 | 625 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 626 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 627 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
628 | } |
629 | ||
3ff3f64b | 630 | /* unmute any active DACs */ |
1a497983 | 631 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 632 | |
1a497983 | 633 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
634 | continue; |
635 | ||
1a497983 ML |
636 | for (i = 0; i < rtd->num_codecs; i++) { |
637 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
638 | struct snd_soc_dai_driver *drv = dai->driver; |
639 | ||
640 | if (drv->ops->digital_mute && dai->playback_active) | |
641 | drv->ops->digital_mute(dai, 0); | |
642 | } | |
db2a4165 FM |
643 | } |
644 | ||
1a497983 ML |
645 | list_for_each_entry(rtd, &card->rtd_list, list) { |
646 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 647 | |
1a497983 | 648 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
649 | continue; |
650 | ||
bc263214 | 651 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 652 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
653 | } |
654 | ||
87506549 | 655 | if (card->resume_post) |
70b2ac12 | 656 | card->resume_post(card); |
db2a4165 | 657 | |
f110bfc7 | 658 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 | 659 | |
8be4da29 LPC |
660 | /* Recheck all endpoints too, their state is affected by suspend */ |
661 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 662 | snd_soc_dapm_sync(&card->dapm); |
1a7aaa58 JK |
663 | |
664 | /* userspace can access us now we are back as we were before */ | |
665 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); | |
6ed25978 AG |
666 | } |
667 | ||
668 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 669 | int snd_soc_resume(struct device *dev) |
6ed25978 | 670 | { |
6f8ab4ac | 671 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 | 672 | bool bus_control = false; |
1a497983 | 673 | struct snd_soc_pcm_runtime *rtd; |
b9dd94a8 | 674 | |
c5599b87 LPC |
675 | /* If the card is not initialized yet there is nothing to do */ |
676 | if (!card->instantiated) | |
5ff1ddf2 EM |
677 | return 0; |
678 | ||
988e8cc4 | 679 | /* activate pins from sleep state */ |
1a497983 | 680 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
681 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
682 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
683 | int j; | |
684 | ||
988e8cc4 NC |
685 | if (cpu_dai->active) |
686 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
687 | |
688 | for (j = 0; j < rtd->num_codecs; j++) { | |
689 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
690 | if (codec_dai->active) | |
691 | pinctrl_pm_select_default_state(codec_dai->dev); | |
692 | } | |
988e8cc4 NC |
693 | } |
694 | ||
bc263214 LPC |
695 | /* |
696 | * DAIs that also act as the control bus master might have other drivers | |
697 | * hanging off them so need to resume immediately. Other drivers don't | |
698 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
699 | * due to I/O costs and anti-pop so handle them out of line. |
700 | */ | |
1a497983 ML |
701 | list_for_each_entry(rtd, &card->rtd_list, list) { |
702 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
bc263214 | 703 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 704 | } |
bc263214 LPC |
705 | if (bus_control) { |
706 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
707 | soc_resume_deferred(&card->deferred_resume_work); |
708 | } else { | |
f110bfc7 | 709 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 710 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 711 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 712 | } |
6ed25978 | 713 | |
db2a4165 FM |
714 | return 0; |
715 | } | |
6f8ab4ac | 716 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 717 | #else |
6f8ab4ac MB |
718 | #define snd_soc_suspend NULL |
719 | #define snd_soc_resume NULL | |
db2a4165 FM |
720 | #endif |
721 | ||
85e7652d | 722 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
723 | }; |
724 | ||
65d9361f LPC |
725 | static struct snd_soc_component *soc_find_component( |
726 | const struct device_node *of_node, const char *name) | |
12023a9a | 727 | { |
65d9361f | 728 | struct snd_soc_component *component; |
12023a9a | 729 | |
34e81ab4 LPC |
730 | lockdep_assert_held(&client_mutex); |
731 | ||
65d9361f LPC |
732 | list_for_each_entry(component, &component_list, list) { |
733 | if (of_node) { | |
734 | if (component->dev->of_node == of_node) | |
735 | return component; | |
736 | } else if (strcmp(component->name, name) == 0) { | |
737 | return component; | |
12023a9a | 738 | } |
12023a9a MLC |
739 | } |
740 | ||
741 | return NULL; | |
742 | } | |
743 | ||
fbb88b5c ML |
744 | /** |
745 | * snd_soc_find_dai - Find a registered DAI | |
746 | * | |
4958471b | 747 | * @dlc: name of the DAI or the DAI driver and optional component info to match |
fbb88b5c | 748 | * |
ad61dd30 | 749 | * This function will search all registered components and their DAIs to |
fbb88b5c ML |
750 | * find the DAI of the same name. The component's of_node and name |
751 | * should also match if being specified. | |
752 | * | |
753 | * Return: pointer of DAI, or NULL if not found. | |
754 | */ | |
305e9020 | 755 | struct snd_soc_dai *snd_soc_find_dai( |
14621c7e | 756 | const struct snd_soc_dai_link_component *dlc) |
12023a9a | 757 | { |
14621c7e LPC |
758 | struct snd_soc_component *component; |
759 | struct snd_soc_dai *dai; | |
3e0aa8d8 | 760 | struct device_node *component_of_node; |
12023a9a | 761 | |
34e81ab4 LPC |
762 | lockdep_assert_held(&client_mutex); |
763 | ||
14621c7e LPC |
764 | /* Find CPU DAI from registered DAIs*/ |
765 | list_for_each_entry(component, &component_list, list) { | |
3e0aa8d8 JS |
766 | component_of_node = component->dev->of_node; |
767 | if (!component_of_node && component->dev->parent) | |
768 | component_of_node = component->dev->parent->of_node; | |
769 | ||
770 | if (dlc->of_node && component_of_node != dlc->of_node) | |
14621c7e | 771 | continue; |
1ffae361 | 772 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
773 | continue; |
774 | list_for_each_entry(dai, &component->dai_list, list) { | |
4958471b | 775 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) |
6a6dafda JC |
776 | && (!dai->driver->name |
777 | || strcmp(dai->driver->name, dlc->dai_name))) | |
12023a9a | 778 | continue; |
12023a9a | 779 | |
14621c7e | 780 | return dai; |
12023a9a MLC |
781 | } |
782 | } | |
783 | ||
784 | return NULL; | |
785 | } | |
305e9020 | 786 | EXPORT_SYMBOL_GPL(snd_soc_find_dai); |
12023a9a | 787 | |
17fb1755 ML |
788 | |
789 | /** | |
790 | * snd_soc_find_dai_link - Find a DAI link | |
791 | * | |
792 | * @card: soc card | |
793 | * @id: DAI link ID to match | |
794 | * @name: DAI link name to match, optional | |
8abab35f | 795 | * @stream_name: DAI link stream name to match, optional |
17fb1755 ML |
796 | * |
797 | * This function will search all existing DAI links of the soc card to | |
798 | * find the link of the same ID. Since DAI links may not have their | |
799 | * unique ID, so name and stream name should also match if being | |
800 | * specified. | |
801 | * | |
802 | * Return: pointer of DAI link, or NULL if not found. | |
803 | */ | |
804 | struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, | |
805 | int id, const char *name, | |
806 | const char *stream_name) | |
807 | { | |
808 | struct snd_soc_dai_link *link, *_link; | |
809 | ||
810 | lockdep_assert_held(&client_mutex); | |
811 | ||
812 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { | |
813 | if (link->id != id) | |
814 | continue; | |
815 | ||
816 | if (name && (!link->name || strcmp(name, link->name))) | |
817 | continue; | |
818 | ||
819 | if (stream_name && (!link->stream_name | |
820 | || strcmp(stream_name, link->stream_name))) | |
821 | continue; | |
822 | ||
823 | return link; | |
824 | } | |
825 | ||
826 | return NULL; | |
827 | } | |
828 | EXPORT_SYMBOL_GPL(snd_soc_find_dai_link); | |
829 | ||
49a5ba1c ML |
830 | static bool soc_is_dai_link_bound(struct snd_soc_card *card, |
831 | struct snd_soc_dai_link *dai_link) | |
832 | { | |
833 | struct snd_soc_pcm_runtime *rtd; | |
834 | ||
835 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
836 | if (rtd->dai_link == dai_link) | |
837 | return true; | |
838 | } | |
839 | ||
840 | return false; | |
841 | } | |
842 | ||
6f2f1ff0 ML |
843 | static int soc_bind_dai_link(struct snd_soc_card *card, |
844 | struct snd_soc_dai_link *dai_link) | |
db2a4165 | 845 | { |
1a497983 | 846 | struct snd_soc_pcm_runtime *rtd; |
88bd870f | 847 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 848 | struct snd_soc_dai_link_component cpu_dai_component; |
90be711e | 849 | struct snd_soc_component *component; |
1a497983 | 850 | struct snd_soc_dai **codec_dais; |
06859fca | 851 | struct device_node *platform_of_node; |
848dd8be | 852 | const char *platform_name; |
88bd870f | 853 | int i; |
435c5e25 | 854 | |
6f2f1ff0 | 855 | dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); |
435c5e25 | 856 | |
49a5ba1c ML |
857 | if (soc_is_dai_link_bound(card, dai_link)) { |
858 | dev_dbg(card->dev, "ASoC: dai link %s already bound\n", | |
859 | dai_link->name); | |
860 | return 0; | |
861 | } | |
435c5e25 | 862 | |
513cb311 SM |
863 | rtd = soc_new_pcm_runtime(card, dai_link); |
864 | if (!rtd) | |
865 | return -ENOMEM; | |
866 | ||
14621c7e LPC |
867 | cpu_dai_component.name = dai_link->cpu_name; |
868 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
869 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
870 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 871 | if (!rtd->cpu_dai) { |
6b490879 MH |
872 | dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", |
873 | dai_link->cpu_dai_name); | |
1a497983 | 874 | goto _err_defer; |
f0fba2ad | 875 | } |
90be711e | 876 | snd_soc_rtdcom_add(rtd, rtd->cpu_dai->component); |
f0fba2ad | 877 | |
88bd870f | 878 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 879 | |
88bd870f | 880 | /* Find CODEC from registered CODECs */ |
1a497983 | 881 | codec_dais = rtd->codec_dais; |
88bd870f | 882 | for (i = 0; i < rtd->num_codecs; i++) { |
14621c7e | 883 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
884 | if (!codec_dais[i]) { |
885 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
886 | codecs[i].dai_name); | |
1a497983 | 887 | goto _err_defer; |
88bd870f | 888 | } |
90be711e | 889 | snd_soc_rtdcom_add(rtd, codec_dais[i]->component); |
12023a9a MLC |
890 | } |
891 | ||
88bd870f BC |
892 | /* Single codec links expect codec and codec_dai in runtime data */ |
893 | rtd->codec_dai = codec_dais[0]; | |
88bd870f | 894 | |
848dd8be MB |
895 | /* if there's no platform we match on the empty platform */ |
896 | platform_name = dai_link->platform_name; | |
5a504963 | 897 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
898 | platform_name = "snd-soc-dummy"; |
899 | ||
90be711e KM |
900 | /* find one from the set of registered platforms */ |
901 | list_for_each_entry(component, &component_list, list) { | |
902 | platform_of_node = component->dev->of_node; | |
903 | if (!platform_of_node && component->dev->parent->of_node) | |
904 | platform_of_node = component->dev->parent->of_node; | |
905 | ||
906 | if (dai_link->platform_of_node) { | |
907 | if (platform_of_node != dai_link->platform_of_node) | |
908 | continue; | |
909 | } else { | |
910 | if (strcmp(component->name, platform_name)) | |
911 | continue; | |
912 | } | |
913 | ||
914 | snd_soc_rtdcom_add(rtd, component); | |
915 | } | |
916 | ||
1a497983 | 917 | soc_add_pcm_runtime(card, rtd); |
b19e6e7b | 918 | return 0; |
1a497983 ML |
919 | |
920 | _err_defer: | |
921 | soc_free_pcm_runtime(rtd); | |
922 | return -EPROBE_DEFER; | |
f0fba2ad LG |
923 | } |
924 | ||
f1d45cc3 | 925 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 926 | { |
abd31b32 | 927 | if (!component->card) |
70090bbb | 928 | return; |
d12cd198 | 929 | |
d9fc4063 | 930 | list_del(&component->card_list); |
589c3563 | 931 | |
999f7f5a KM |
932 | if (component->driver->remove) |
933 | component->driver->remove(component); | |
589c3563 | 934 | |
f1d45cc3 | 935 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 936 | |
f1d45cc3 | 937 | soc_cleanup_component_debugfs(component); |
abd31b32 | 938 | component->card = NULL; |
f1d45cc3 | 939 | module_put(component->dev->driver->owner); |
589c3563 JN |
940 | } |
941 | ||
e60cd14f | 942 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 943 | { |
f0fba2ad LG |
944 | int err; |
945 | ||
e60cd14f LPC |
946 | if (dai && dai->probed && |
947 | dai->driver->remove_order == order) { | |
948 | if (dai->driver->remove) { | |
949 | err = dai->driver->remove(dai); | |
f0fba2ad | 950 | if (err < 0) |
e60cd14f | 951 | dev_err(dai->dev, |
f110bfc7 | 952 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 953 | dai->name, err); |
6b05eda6 | 954 | } |
e60cd14f | 955 | dai->probed = 0; |
f0fba2ad | 956 | } |
b0aa88af MLC |
957 | } |
958 | ||
1a497983 ML |
959 | static void soc_remove_link_dais(struct snd_soc_card *card, |
960 | struct snd_soc_pcm_runtime *rtd, int order) | |
b0aa88af | 961 | { |
e60cd14f | 962 | int i; |
b0aa88af MLC |
963 | |
964 | /* unregister the rtd device */ | |
965 | if (rtd->dev_registered) { | |
b0aa88af MLC |
966 | device_unregister(rtd->dev); |
967 | rtd->dev_registered = 0; | |
968 | } | |
969 | ||
970 | /* remove the CODEC DAI */ | |
88bd870f | 971 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 972 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 973 | |
e60cd14f | 974 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 975 | } |
db2a4165 | 976 | |
1a497983 ML |
977 | static void soc_remove_link_components(struct snd_soc_card *card, |
978 | struct snd_soc_pcm_runtime *rtd, int order) | |
62ae68fa | 979 | { |
61aca564 | 980 | struct snd_soc_component *component; |
90be711e | 981 | struct snd_soc_rtdcom_list *rtdcom; |
62ae68fa | 982 | |
90be711e KM |
983 | for_each_rtdcom(rtd, rtdcom) { |
984 | component = rtdcom->component; | |
62ae68fa | 985 | |
70090bbb | 986 | if (component->driver->remove_order == order) |
61aca564 | 987 | soc_remove_component(component); |
62ae68fa | 988 | } |
62ae68fa SW |
989 | } |
990 | ||
0671fd8e KM |
991 | static void soc_remove_dai_links(struct snd_soc_card *card) |
992 | { | |
1a497983 ML |
993 | int order; |
994 | struct snd_soc_pcm_runtime *rtd; | |
f8f80361 | 995 | struct snd_soc_dai_link *link, *_link; |
0671fd8e | 996 | |
0168bf0d LG |
997 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
998 | order++) { | |
1a497983 ML |
999 | list_for_each_entry(rtd, &card->rtd_list, list) |
1000 | soc_remove_link_dais(card, rtd, order); | |
62ae68fa SW |
1001 | } |
1002 | ||
1003 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1004 | order++) { | |
1a497983 ML |
1005 | list_for_each_entry(rtd, &card->rtd_list, list) |
1006 | soc_remove_link_components(card, rtd, order); | |
0168bf0d | 1007 | } |
62ae68fa | 1008 | |
f8f80361 ML |
1009 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1010 | if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK) | |
1011 | dev_warn(card->dev, "Topology forgot to remove link %s?\n", | |
1012 | link->name); | |
1013 | ||
1014 | list_del(&link->list); | |
1015 | card->num_dai_links--; | |
1016 | } | |
0671fd8e KM |
1017 | } |
1018 | ||
923c5e61 ML |
1019 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
1020 | struct snd_soc_dai_link *dai_link) | |
1021 | { | |
1022 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
1023 | if (dai_link->codec_name || dai_link->codec_of_node || | |
1024 | dai_link->codec_dai_name) { | |
1025 | dai_link->num_codecs = 1; | |
1026 | ||
1027 | dai_link->codecs = devm_kzalloc(card->dev, | |
1028 | sizeof(struct snd_soc_dai_link_component), | |
1029 | GFP_KERNEL); | |
1030 | if (!dai_link->codecs) | |
1031 | return -ENOMEM; | |
1032 | ||
1033 | dai_link->codecs[0].name = dai_link->codec_name; | |
1034 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
1035 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
1036 | } | |
1037 | ||
1038 | if (!dai_link->codecs) { | |
1039 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
1040 | return -EINVAL; | |
1041 | } | |
1042 | ||
1043 | return 0; | |
1044 | } | |
1045 | ||
1046 | static int soc_init_dai_link(struct snd_soc_card *card, | |
1047 | struct snd_soc_dai_link *link) | |
1048 | { | |
1049 | int i, ret; | |
1050 | ||
1051 | ret = snd_soc_init_multicodec(card, link); | |
1052 | if (ret) { | |
1053 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
1054 | return ret; | |
1055 | } | |
1056 | ||
1057 | for (i = 0; i < link->num_codecs; i++) { | |
1058 | /* | |
1059 | * Codec must be specified by 1 of name or OF node, | |
1060 | * not both or neither. | |
1061 | */ | |
1062 | if (!!link->codecs[i].name == | |
1063 | !!link->codecs[i].of_node) { | |
1064 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
1065 | link->name); | |
1066 | return -EINVAL; | |
1067 | } | |
1068 | /* Codec DAI name must be specified */ | |
1069 | if (!link->codecs[i].dai_name) { | |
1070 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
1071 | link->name); | |
1072 | return -EINVAL; | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | /* | |
1077 | * Platform may be specified by either name or OF node, but | |
1078 | * can be left unspecified, and a dummy platform will be used. | |
1079 | */ | |
1080 | if (link->platform_name && link->platform_of_node) { | |
1081 | dev_err(card->dev, | |
1082 | "ASoC: Both platform name/of_node are set for %s\n", | |
1083 | link->name); | |
1084 | return -EINVAL; | |
1085 | } | |
1086 | ||
1087 | /* | |
1088 | * CPU device may be specified by either name or OF node, but | |
1089 | * can be left unspecified, and will be matched based on DAI | |
1090 | * name alone.. | |
1091 | */ | |
1092 | if (link->cpu_name && link->cpu_of_node) { | |
1093 | dev_err(card->dev, | |
1094 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
1095 | link->name); | |
1096 | return -EINVAL; | |
1097 | } | |
1098 | /* | |
1099 | * At least one of CPU DAI name or CPU device name/node must be | |
1100 | * specified | |
1101 | */ | |
1102 | if (!link->cpu_dai_name && | |
1103 | !(link->cpu_name || link->cpu_of_node)) { | |
1104 | dev_err(card->dev, | |
1105 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
1106 | link->name); | |
1107 | return -EINVAL; | |
1108 | } | |
1109 | ||
1110 | return 0; | |
0671fd8e KM |
1111 | } |
1112 | ||
ef2e8175 KM |
1113 | void snd_soc_disconnect_sync(struct device *dev) |
1114 | { | |
1115 | struct snd_soc_component *component = snd_soc_lookup_component(dev, NULL); | |
1116 | ||
1117 | if (!component || !component->card) | |
1118 | return; | |
1119 | ||
1120 | snd_card_disconnect_sync(component->card->snd_card); | |
1121 | } | |
df532185 | 1122 | EXPORT_SYMBOL_GPL(snd_soc_disconnect_sync); |
ef2e8175 | 1123 | |
f8f80361 ML |
1124 | /** |
1125 | * snd_soc_add_dai_link - Add a DAI link dynamically | |
1126 | * @card: The ASoC card to which the DAI link is added | |
1127 | * @dai_link: The new DAI link to add | |
1128 | * | |
1129 | * This function adds a DAI link to the ASoC card's link list. | |
1130 | * | |
1131 | * Note: Topology can use this API to add DAI links when probing the | |
1132 | * topology component. And machine drivers can still define static | |
1133 | * DAI links in dai_link array. | |
1134 | */ | |
1135 | int snd_soc_add_dai_link(struct snd_soc_card *card, | |
1136 | struct snd_soc_dai_link *dai_link) | |
1137 | { | |
1138 | if (dai_link->dobj.type | |
1139 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1140 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1141 | dai_link->dobj.type); | |
1142 | return -EINVAL; | |
1143 | } | |
1144 | ||
1145 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1146 | /* Notify the machine driver for extra initialization |
1147 | * on the link created by topology. | |
1148 | */ | |
1149 | if (dai_link->dobj.type && card->add_dai_link) | |
1150 | card->add_dai_link(card, dai_link); | |
1151 | ||
f8f80361 ML |
1152 | list_add_tail(&dai_link->list, &card->dai_link_list); |
1153 | card->num_dai_links++; | |
1154 | ||
1155 | return 0; | |
1156 | } | |
1157 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_link); | |
1158 | ||
1159 | /** | |
1160 | * snd_soc_remove_dai_link - Remove a DAI link from the list | |
1161 | * @card: The ASoC card that owns the link | |
1162 | * @dai_link: The DAI link to remove | |
1163 | * | |
1164 | * This function removes a DAI link from the ASoC card's link list. | |
1165 | * | |
1166 | * For DAI links previously added by topology, topology should | |
1167 | * remove them by using the dobj embedded in the link. | |
1168 | */ | |
1169 | void snd_soc_remove_dai_link(struct snd_soc_card *card, | |
1170 | struct snd_soc_dai_link *dai_link) | |
1171 | { | |
1172 | struct snd_soc_dai_link *link, *_link; | |
1173 | ||
1174 | if (dai_link->dobj.type | |
1175 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1176 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1177 | dai_link->dobj.type); | |
1178 | return; | |
1179 | } | |
1180 | ||
1181 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1182 | /* Notify the machine driver for extra destruction |
1183 | * on the link created by topology. | |
1184 | */ | |
1185 | if (dai_link->dobj.type && card->remove_dai_link) | |
1186 | card->remove_dai_link(card, dai_link); | |
1187 | ||
f8f80361 ML |
1188 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1189 | if (link == dai_link) { | |
1190 | list_del(&link->list); | |
1191 | card->num_dai_links--; | |
1192 | return; | |
1193 | } | |
1194 | } | |
1195 | } | |
1196 | EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); | |
1197 | ||
ead9b919 | 1198 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1199 | struct snd_soc_component *component) |
ead9b919 JN |
1200 | { |
1201 | int i; | |
1202 | ||
ff819b83 | 1203 | if (card->codec_conf == NULL) |
ead9b919 JN |
1204 | return; |
1205 | ||
ff819b83 DP |
1206 | for (i = 0; i < card->num_configs; i++) { |
1207 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
b24c539b CK |
1208 | struct device_node *component_of_node = component->dev->of_node; |
1209 | ||
1210 | if (!component_of_node && component->dev->parent) | |
1211 | component_of_node = component->dev->parent->of_node; | |
1212 | ||
1213 | if (map->of_node && component_of_node != map->of_node) | |
3ca041ed | 1214 | continue; |
94f99c87 | 1215 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1216 | continue; |
94f99c87 | 1217 | component->name_prefix = map->name_prefix; |
3ca041ed | 1218 | break; |
ead9b919 JN |
1219 | } |
1220 | } | |
1221 | ||
f1d45cc3 LPC |
1222 | static int soc_probe_component(struct snd_soc_card *card, |
1223 | struct snd_soc_component *component) | |
589c3563 | 1224 | { |
f1d45cc3 | 1225 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1226 | struct snd_soc_dai *dai; |
f1d45cc3 | 1227 | int ret; |
589c3563 | 1228 | |
1b7c1231 | 1229 | if (!strcmp(component->name, "snd-soc-dummy")) |
70090bbb | 1230 | return 0; |
589c3563 | 1231 | |
abd31b32 | 1232 | if (component->card) { |
1b7c1231 LPC |
1233 | if (component->card != card) { |
1234 | dev_err(component->dev, | |
1235 | "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", | |
1236 | card->name, component->card->name); | |
1237 | return -ENODEV; | |
1238 | } | |
1239 | return 0; | |
1240 | } | |
589c3563 | 1241 | |
f1d45cc3 | 1242 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1243 | return -ENODEV; |
1244 | ||
f1d45cc3 LPC |
1245 | component->card = card; |
1246 | dapm->card = card; | |
1247 | soc_set_name_prefix(card, component); | |
589c3563 | 1248 | |
f1d45cc3 | 1249 | soc_init_component_debugfs(component); |
d5d1e0be | 1250 | |
688d0ebf KM |
1251 | if (component->driver->dapm_widgets) { |
1252 | ret = snd_soc_dapm_new_controls(dapm, | |
1253 | component->driver->dapm_widgets, | |
1254 | component->driver->num_dapm_widgets); | |
b318ad50 NP |
1255 | |
1256 | if (ret != 0) { | |
f1d45cc3 | 1257 | dev_err(component->dev, |
b318ad50 NP |
1258 | "Failed to create new controls %d\n", ret); |
1259 | goto err_probe; | |
1260 | } | |
1261 | } | |
77530150 | 1262 | |
0634814f LPC |
1263 | list_for_each_entry(dai, &component->dai_list, list) { |
1264 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1265 | if (ret != 0) { |
0634814f | 1266 | dev_err(component->dev, |
261edc70 NP |
1267 | "Failed to create DAI widgets %d\n", ret); |
1268 | goto err_probe; | |
1269 | } | |
1270 | } | |
888df395 | 1271 | |
999f7f5a KM |
1272 | if (component->driver->probe) { |
1273 | ret = component->driver->probe(component); | |
589c3563 | 1274 | if (ret < 0) { |
f1d45cc3 LPC |
1275 | dev_err(component->dev, |
1276 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1277 | goto err_probe; |
589c3563 | 1278 | } |
cb2cf612 | 1279 | |
f1d45cc3 LPC |
1280 | WARN(dapm->idle_bias_off && |
1281 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1282 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1283 | component->name); | |
be09ad90 LG |
1284 | } |
1285 | ||
f2ed6b07 ML |
1286 | /* machine specific init */ |
1287 | if (component->init) { | |
1288 | ret = component->init(component); | |
1289 | if (ret < 0) { | |
1290 | dev_err(component->dev, | |
1291 | "Failed to do machine specific init %d\n", ret); | |
1292 | goto err_probe; | |
1293 | } | |
1294 | } | |
1295 | ||
b8972bf0 KM |
1296 | if (component->driver->controls) |
1297 | snd_soc_add_component_controls(component, | |
1298 | component->driver->controls, | |
1299 | component->driver->num_controls); | |
6969b2ba KM |
1300 | if (component->driver->dapm_routes) |
1301 | snd_soc_dapm_add_routes(dapm, | |
1302 | component->driver->dapm_routes, | |
1303 | component->driver->num_dapm_routes); | |
3fec6b6d | 1304 | |
f1d45cc3 | 1305 | list_add(&dapm->list, &card->dapm_list); |
d9fc4063 | 1306 | list_add(&component->card_list, &card->component_dev_list); |
956245e9 LG |
1307 | |
1308 | return 0; | |
1309 | ||
1310 | err_probe: | |
f1d45cc3 | 1311 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1312 | component->card = NULL; |
f1d45cc3 | 1313 | module_put(component->dev->driver->owner); |
956245e9 LG |
1314 | |
1315 | return ret; | |
1316 | } | |
1317 | ||
36ae1a96 MB |
1318 | static void rtd_release(struct device *dev) |
1319 | { | |
1320 | kfree(dev); | |
1321 | } | |
f0fba2ad | 1322 | |
5f3484ac LPC |
1323 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1324 | const char *name) | |
503ae5e0 | 1325 | { |
589c3563 JN |
1326 | int ret = 0; |
1327 | ||
589c3563 | 1328 | /* register the rtd device */ |
36ae1a96 MB |
1329 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1330 | if (!rtd->dev) | |
1331 | return -ENOMEM; | |
1332 | device_initialize(rtd->dev); | |
5f3484ac | 1333 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1334 | rtd->dev->release = rtd_release; |
d29697dc | 1335 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1336 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1337 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1338 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1339 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1340 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1341 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1342 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1343 | ret = device_add(rtd->dev); |
589c3563 | 1344 | if (ret < 0) { |
865df9cb CL |
1345 | /* calling put_device() here to free the rtd->dev */ |
1346 | put_device(rtd->dev); | |
5f3484ac | 1347 | dev_err(rtd->card->dev, |
f110bfc7 | 1348 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1349 | return ret; |
1350 | } | |
1351 | rtd->dev_registered = 1; | |
589c3563 JN |
1352 | return 0; |
1353 | } | |
1354 | ||
1a497983 ML |
1355 | static int soc_probe_link_components(struct snd_soc_card *card, |
1356 | struct snd_soc_pcm_runtime *rtd, | |
62ae68fa SW |
1357 | int order) |
1358 | { | |
f1d45cc3 | 1359 | struct snd_soc_component *component; |
90be711e KM |
1360 | struct snd_soc_rtdcom_list *rtdcom; |
1361 | int ret; | |
62ae68fa | 1362 | |
90be711e KM |
1363 | for_each_rtdcom(rtd, rtdcom) { |
1364 | component = rtdcom->component; | |
62ae68fa | 1365 | |
70090bbb | 1366 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1367 | ret = soc_probe_component(card, component); |
88bd870f BC |
1368 | if (ret < 0) |
1369 | return ret; | |
1370 | } | |
62ae68fa SW |
1371 | } |
1372 | ||
62ae68fa SW |
1373 | return 0; |
1374 | } | |
1375 | ||
8e2be562 | 1376 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af | 1377 | { |
7a2ccad5 KM |
1378 | if (dai->probed || |
1379 | dai->driver->probe_order != order) | |
1380 | return 0; | |
b0aa88af | 1381 | |
7a2ccad5 KM |
1382 | if (dai->driver->probe) { |
1383 | int ret = dai->driver->probe(dai); | |
1384 | if (ret < 0) { | |
1385 | dev_err(dai->dev, "ASoC: failed to probe DAI %s: %d\n", | |
1386 | dai->name, ret); | |
1387 | return ret; | |
b0aa88af | 1388 | } |
b0aa88af MLC |
1389 | } |
1390 | ||
7a2ccad5 KM |
1391 | dai->probed = 1; |
1392 | ||
b0aa88af MLC |
1393 | return 0; |
1394 | } | |
1395 | ||
25f7b701 AP |
1396 | static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais, |
1397 | struct snd_soc_pcm_runtime *rtd) | |
1398 | { | |
1399 | int i, ret = 0; | |
1400 | ||
1401 | for (i = 0; i < num_dais; ++i) { | |
1402 | struct snd_soc_dai_driver *drv = dais[i]->driver; | |
1403 | ||
1404 | if (!rtd->dai_link->no_pcm && drv->pcm_new) | |
1405 | ret = drv->pcm_new(rtd, dais[i]); | |
1406 | if (ret < 0) { | |
1407 | dev_err(dais[i]->dev, | |
1408 | "ASoC: Failed to bind %s with pcm device\n", | |
1409 | dais[i]->name); | |
1410 | return ret; | |
1411 | } | |
1412 | } | |
1413 | ||
1414 | return 0; | |
1415 | } | |
1416 | ||
2436a723 MLC |
1417 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1418 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1419 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1420 | { |
3f901a02 BC |
1421 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1422 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
3de7c420 | 1423 | struct snd_soc_dapm_widget *sink, *source; |
2436a723 MLC |
1424 | int ret; |
1425 | ||
88bd870f BC |
1426 | if (rtd->num_codecs > 1) |
1427 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1428 | ||
2436a723 | 1429 | /* link the DAI widgets */ |
3de7c420 VK |
1430 | sink = codec_dai->playback_widget; |
1431 | source = cpu_dai->capture_widget; | |
1432 | if (sink && source) { | |
2436a723 | 1433 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1434 | dai_link->num_params, |
1435 | source, sink); | |
2436a723 MLC |
1436 | if (ret != 0) { |
1437 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1438 | sink->name, source->name, ret); |
2436a723 MLC |
1439 | return ret; |
1440 | } | |
1441 | } | |
1442 | ||
3de7c420 VK |
1443 | sink = cpu_dai->playback_widget; |
1444 | source = codec_dai->capture_widget; | |
1445 | if (sink && source) { | |
2436a723 | 1446 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1447 | dai_link->num_params, |
1448 | source, sink); | |
2436a723 MLC |
1449 | if (ret != 0) { |
1450 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1451 | sink->name, source->name, ret); |
2436a723 MLC |
1452 | return ret; |
1453 | } | |
1454 | } | |
1455 | ||
1456 | return 0; | |
1457 | } | |
1458 | ||
1a497983 ML |
1459 | static int soc_probe_link_dais(struct snd_soc_card *card, |
1460 | struct snd_soc_pcm_runtime *rtd, int order) | |
f0fba2ad | 1461 | { |
1a497983 | 1462 | struct snd_soc_dai_link *dai_link = rtd->dai_link; |
c74184ed | 1463 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
291bfb92 | 1464 | int i, ret; |
f0fba2ad | 1465 | |
f110bfc7 | 1466 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
1a497983 | 1467 | card->name, rtd->num, order); |
f0fba2ad | 1468 | |
f0fba2ad LG |
1469 | /* set default power off timeout */ |
1470 | rtd->pmdown_time = pmdown_time; | |
1471 | ||
8e2be562 LPC |
1472 | ret = soc_probe_dai(cpu_dai, order); |
1473 | if (ret) | |
1474 | return ret; | |
db2a4165 | 1475 | |
f0fba2ad | 1476 | /* probe the CODEC DAI */ |
88bd870f | 1477 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1478 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1479 | if (ret) |
1480 | return ret; | |
1481 | } | |
fe3e78e0 | 1482 | |
0168bf0d LG |
1483 | /* complete DAI probe during last probe */ |
1484 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1485 | return 0; | |
1486 | ||
5f3484ac LPC |
1487 | /* do machine specific initialization */ |
1488 | if (dai_link->init) { | |
1489 | ret = dai_link->init(rtd); | |
1490 | if (ret < 0) { | |
1491 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1492 | dai_link->name, ret); | |
1493 | return ret; | |
1494 | } | |
1495 | } | |
1496 | ||
a5053a8e KM |
1497 | if (dai_link->dai_fmt) |
1498 | snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1499 | ||
5f3484ac | 1500 | ret = soc_post_component_init(rtd, dai_link->name); |
589c3563 | 1501 | if (ret) |
f0fba2ad | 1502 | return ret; |
fe3e78e0 | 1503 | |
5f3484ac LPC |
1504 | #ifdef CONFIG_DEBUG_FS |
1505 | /* add DPCM sysfs entries */ | |
2e55b90a LPC |
1506 | if (dai_link->dynamic) |
1507 | soc_dpcm_debugfs_add(rtd); | |
5f3484ac LPC |
1508 | #endif |
1509 | ||
6f0c4226 | 1510 | if (cpu_dai->driver->compress_new) { |
1245b700 | 1511 | /*create compress_device"*/ |
291bfb92 | 1512 | ret = cpu_dai->driver->compress_new(rtd, rtd->num); |
c74184ed | 1513 | if (ret < 0) { |
f110bfc7 | 1514 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1515 | dai_link->stream_name); |
c74184ed MB |
1516 | return ret; |
1517 | } | |
1518 | } else { | |
1245b700 NK |
1519 | |
1520 | if (!dai_link->params) { | |
1521 | /* create the pcm */ | |
291bfb92 | 1522 | ret = soc_new_pcm(rtd, rtd->num); |
1245b700 | 1523 | if (ret < 0) { |
f110bfc7 | 1524 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1525 | dai_link->stream_name, ret); |
c74184ed MB |
1526 | return ret; |
1527 | } | |
25f7b701 AP |
1528 | ret = soc_link_dai_pcm_new(&cpu_dai, 1, rtd); |
1529 | if (ret < 0) | |
1530 | return ret; | |
1531 | ret = soc_link_dai_pcm_new(rtd->codec_dais, | |
1532 | rtd->num_codecs, rtd); | |
1533 | if (ret < 0) | |
1534 | return ret; | |
1245b700 | 1535 | } else { |
9d58a077 RF |
1536 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1537 | codec2codec_close_delayed_work); | |
1538 | ||
1245b700 | 1539 | /* link the DAI widgets */ |
3f901a02 | 1540 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1541 | if (ret) |
1542 | return ret; | |
c74184ed | 1543 | } |
f0fba2ad LG |
1544 | } |
1545 | ||
f0fba2ad LG |
1546 | return 0; |
1547 | } | |
1548 | ||
44c69bb1 | 1549 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed SR |
1550 | { |
1551 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
f2ed6b07 ML |
1552 | struct snd_soc_component *component; |
1553 | const char *name; | |
1554 | struct device_node *codec_of_node; | |
1555 | ||
1556 | if (aux_dev->codec_of_node || aux_dev->codec_name) { | |
1557 | /* codecs, usually analog devices */ | |
1558 | name = aux_dev->codec_name; | |
1559 | codec_of_node = aux_dev->codec_of_node; | |
1560 | component = soc_find_component(codec_of_node, name); | |
1561 | if (!component) { | |
1562 | if (codec_of_node) | |
1563 | name = of_node_full_name(codec_of_node); | |
1564 | goto err_defer; | |
1565 | } | |
1566 | } else if (aux_dev->name) { | |
1567 | /* generic components */ | |
1568 | name = aux_dev->name; | |
1569 | component = soc_find_component(NULL, name); | |
1570 | if (!component) | |
1571 | goto err_defer; | |
1572 | } else { | |
1573 | dev_err(card->dev, "ASoC: Invalid auxiliary device\n"); | |
1574 | return -EINVAL; | |
3ca041ed | 1575 | } |
fb099cb7 | 1576 | |
f2ed6b07 | 1577 | component->init = aux_dev->init; |
d2e3a135 | 1578 | list_add(&component->card_aux_list, &card->aux_comp_list); |
1a653aa4 | 1579 | |
44c69bb1 | 1580 | return 0; |
f2ed6b07 ML |
1581 | |
1582 | err_defer: | |
1583 | dev_err(card->dev, "ASoC: %s not registered\n", name); | |
1584 | return -EPROBE_DEFER; | |
b19e6e7b MB |
1585 | } |
1586 | ||
f2ed6b07 | 1587 | static int soc_probe_aux_devices(struct snd_soc_card *card) |
2eea392d | 1588 | { |
991454e1 | 1589 | struct snd_soc_component *comp; |
f2ed6b07 | 1590 | int order; |
44c69bb1 | 1591 | int ret; |
3ca041ed | 1592 | |
f2ed6b07 ML |
1593 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1594 | order++) { | |
991454e1 | 1595 | list_for_each_entry(comp, &card->aux_comp_list, card_aux_list) { |
f2ed6b07 ML |
1596 | if (comp->driver->probe_order == order) { |
1597 | ret = soc_probe_component(card, comp); | |
1598 | if (ret < 0) { | |
1599 | dev_err(card->dev, | |
1600 | "ASoC: failed to probe aux component %s %d\n", | |
1601 | comp->name, ret); | |
1602 | return ret; | |
1603 | } | |
1604 | } | |
5f3484ac LPC |
1605 | } |
1606 | } | |
2eea392d | 1607 | |
f2ed6b07 | 1608 | return 0; |
2eea392d JN |
1609 | } |
1610 | ||
f2ed6b07 | 1611 | static void soc_remove_aux_devices(struct snd_soc_card *card) |
2eea392d | 1612 | { |
f2ed6b07 ML |
1613 | struct snd_soc_component *comp, *_comp; |
1614 | int order; | |
2eea392d | 1615 | |
f2ed6b07 ML |
1616 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1617 | order++) { | |
1618 | list_for_each_entry_safe(comp, _comp, | |
991454e1 | 1619 | &card->aux_comp_list, card_aux_list) { |
1a653aa4 | 1620 | |
f2ed6b07 ML |
1621 | if (comp->driver->remove_order == order) { |
1622 | soc_remove_component(comp); | |
991454e1 KM |
1623 | /* remove it from the card's aux_comp_list */ |
1624 | list_del(&comp->card_aux_list); | |
f2ed6b07 ML |
1625 | } |
1626 | } | |
2eea392d | 1627 | } |
2eea392d JN |
1628 | } |
1629 | ||
ce64c8b9 LPC |
1630 | /** |
1631 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1632 | * @rtd: The runtime for which the DAI link format should be changed | |
1633 | * @dai_fmt: The new DAI link format | |
1634 | * | |
1635 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1636 | * link for the specified runtime. | |
1637 | * | |
1638 | * Note: For setups with a static format set the dai_fmt field in the | |
1639 | * corresponding snd_dai_link struct instead of using this function. | |
1640 | * | |
1641 | * Returns 0 on success, otherwise a negative error code. | |
1642 | */ | |
1643 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1644 | unsigned int dai_fmt) | |
1645 | { | |
1646 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1647 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1648 | unsigned int i; | |
1649 | int ret; | |
1650 | ||
1651 | for (i = 0; i < rtd->num_codecs; i++) { | |
1652 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1653 | ||
1654 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1655 | if (ret != 0 && ret != -ENOTSUPP) { | |
1656 | dev_warn(codec_dai->dev, | |
1657 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1658 | return ret; | |
1659 | } | |
1660 | } | |
1661 | ||
1662 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
cb2cf0de | 1663 | /* the component which has non_legacy_dai_naming is Codec */ |
999f7f5a | 1664 | if (cpu_dai->component->driver->non_legacy_dai_naming) { |
ce64c8b9 LPC |
1665 | unsigned int inv_dai_fmt; |
1666 | ||
1667 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1668 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1669 | case SND_SOC_DAIFMT_CBM_CFM: | |
1670 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1671 | break; | |
1672 | case SND_SOC_DAIFMT_CBM_CFS: | |
1673 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1674 | break; | |
1675 | case SND_SOC_DAIFMT_CBS_CFM: | |
1676 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1677 | break; | |
1678 | case SND_SOC_DAIFMT_CBS_CFS: | |
1679 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1680 | break; | |
1681 | } | |
1682 | ||
1683 | dai_fmt = inv_dai_fmt; | |
1684 | } | |
1685 | ||
1686 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1687 | if (ret != 0 && ret != -ENOTSUPP) { | |
1688 | dev_warn(cpu_dai->dev, | |
1689 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1690 | return ret; | |
1691 | } | |
1692 | ||
1693 | return 0; | |
1694 | } | |
ddaca25a | 1695 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1696 | |
345233d7 | 1697 | |
1f5a4535 | 1698 | #ifdef CONFIG_DMI |
345233d7 LG |
1699 | /* Trim special characters, and replace '-' with '_' since '-' is used to |
1700 | * separate different DMI fields in the card long name. Only number and | |
1701 | * alphabet characters and a few separator characters are kept. | |
1702 | */ | |
1703 | static void cleanup_dmi_name(char *name) | |
1704 | { | |
1705 | int i, j = 0; | |
1706 | ||
1707 | for (i = 0; name[i]; i++) { | |
1708 | if (isalnum(name[i]) || (name[i] == '.') | |
1709 | || (name[i] == '_')) | |
1710 | name[j++] = name[i]; | |
1711 | else if (name[i] == '-') | |
1712 | name[j++] = '_'; | |
1713 | } | |
1714 | ||
1715 | name[j] = '\0'; | |
1716 | } | |
1717 | ||
98faf436 ML |
1718 | /* Check if a DMI field is valid, i.e. not containing any string |
1719 | * in the black list. | |
1720 | */ | |
1721 | static int is_dmi_valid(const char *field) | |
1722 | { | |
1723 | int i = 0; | |
1724 | ||
1725 | while (dmi_blacklist[i]) { | |
1726 | if (strstr(field, dmi_blacklist[i])) | |
1727 | return 0; | |
1728 | i++; | |
46b5a4d2 | 1729 | } |
98faf436 ML |
1730 | |
1731 | return 1; | |
1732 | } | |
1733 | ||
345233d7 LG |
1734 | /** |
1735 | * snd_soc_set_dmi_name() - Register DMI names to card | |
1736 | * @card: The card to register DMI names | |
1737 | * @flavour: The flavour "differentiator" for the card amongst its peers. | |
1738 | * | |
1739 | * An Intel machine driver may be used by many different devices but are | |
1740 | * difficult for userspace to differentiate, since machine drivers ususally | |
1741 | * use their own name as the card short name and leave the card long name | |
1742 | * blank. To differentiate such devices and fix bugs due to lack of | |
1743 | * device-specific configurations, this function allows DMI info to be used | |
1744 | * as the sound card long name, in the format of | |
1745 | * "vendor-product-version-board" | |
1746 | * (Character '-' is used to separate different DMI fields here). | |
1747 | * This will help the user space to load the device-specific Use Case Manager | |
1748 | * (UCM) configurations for the card. | |
1749 | * | |
1750 | * Possible card long names may be: | |
1751 | * DellInc.-XPS139343-01-0310JH | |
1752 | * ASUSTeKCOMPUTERINC.-T100TA-1.0-T100TA | |
1753 | * Circuitco-MinnowboardMaxD0PLATFORM-D0-MinnowBoardMAX | |
1754 | * | |
1755 | * This function also supports flavoring the card longname to provide | |
1756 | * the extra differentiation, like "vendor-product-version-board-flavor". | |
1757 | * | |
1758 | * We only keep number and alphabet characters and a few separator characters | |
1759 | * in the card long name since UCM in the user space uses the card long names | |
1760 | * as card configuration directory names and AudoConf cannot support special | |
1761 | * charactors like SPACE. | |
1762 | * | |
1763 | * Returns 0 on success, otherwise a negative error code. | |
1764 | */ | |
1765 | int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) | |
1766 | { | |
1767 | const char *vendor, *product, *product_version, *board; | |
1768 | size_t longname_buf_size = sizeof(card->snd_card->longname); | |
1769 | size_t len; | |
1770 | ||
1771 | if (card->long_name) | |
1772 | return 0; /* long name already set by driver or from DMI */ | |
1773 | ||
1774 | /* make up dmi long name as: vendor.product.version.board */ | |
1775 | vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
98faf436 | 1776 | if (!vendor || !is_dmi_valid(vendor)) { |
345233d7 LG |
1777 | dev_warn(card->dev, "ASoC: no DMI vendor name!\n"); |
1778 | return 0; | |
1779 | } | |
1780 | ||
98faf436 | 1781 | |
345233d7 LG |
1782 | snprintf(card->dmi_longname, sizeof(card->snd_card->longname), |
1783 | "%s", vendor); | |
1784 | cleanup_dmi_name(card->dmi_longname); | |
1785 | ||
1786 | product = dmi_get_system_info(DMI_PRODUCT_NAME); | |
98faf436 | 1787 | if (product && is_dmi_valid(product)) { |
345233d7 LG |
1788 | len = strlen(card->dmi_longname); |
1789 | snprintf(card->dmi_longname + len, | |
1790 | longname_buf_size - len, | |
1791 | "-%s", product); | |
1792 | ||
1793 | len++; /* skip the separator "-" */ | |
1794 | if (len < longname_buf_size) | |
1795 | cleanup_dmi_name(card->dmi_longname + len); | |
1796 | ||
1797 | /* some vendors like Lenovo may only put a self-explanatory | |
1798 | * name in the product version field | |
1799 | */ | |
1800 | product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); | |
98faf436 | 1801 | if (product_version && is_dmi_valid(product_version)) { |
345233d7 LG |
1802 | len = strlen(card->dmi_longname); |
1803 | snprintf(card->dmi_longname + len, | |
1804 | longname_buf_size - len, | |
1805 | "-%s", product_version); | |
1806 | ||
1807 | len++; | |
1808 | if (len < longname_buf_size) | |
1809 | cleanup_dmi_name(card->dmi_longname + len); | |
1810 | } | |
1811 | } | |
1812 | ||
1813 | board = dmi_get_system_info(DMI_BOARD_NAME); | |
98faf436 | 1814 | if (board && is_dmi_valid(board)) { |
345233d7 LG |
1815 | len = strlen(card->dmi_longname); |
1816 | snprintf(card->dmi_longname + len, | |
1817 | longname_buf_size - len, | |
1818 | "-%s", board); | |
1819 | ||
1820 | len++; | |
1821 | if (len < longname_buf_size) | |
1822 | cleanup_dmi_name(card->dmi_longname + len); | |
1823 | } else if (!product) { | |
1824 | /* fall back to using legacy name */ | |
1825 | dev_warn(card->dev, "ASoC: no DMI board/product name!\n"); | |
1826 | return 0; | |
1827 | } | |
1828 | ||
1829 | /* Add flavour to dmi long name */ | |
1830 | if (flavour) { | |
1831 | len = strlen(card->dmi_longname); | |
1832 | snprintf(card->dmi_longname + len, | |
1833 | longname_buf_size - len, | |
1834 | "-%s", flavour); | |
1835 | ||
1836 | len++; | |
1837 | if (len < longname_buf_size) | |
1838 | cleanup_dmi_name(card->dmi_longname + len); | |
1839 | } | |
1840 | ||
1841 | /* set the card long name */ | |
1842 | card->long_name = card->dmi_longname; | |
1843 | ||
1844 | return 0; | |
1845 | } | |
1846 | EXPORT_SYMBOL_GPL(snd_soc_set_dmi_name); | |
1f5a4535 | 1847 | #endif /* CONFIG_DMI */ |
345233d7 | 1848 | |
b19e6e7b | 1849 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1850 | { |
1a497983 | 1851 | struct snd_soc_pcm_runtime *rtd; |
61b0088b | 1852 | struct snd_soc_dai_link *dai_link; |
ce64c8b9 | 1853 | int ret, i, order; |
fe3e78e0 | 1854 | |
34e81ab4 | 1855 | mutex_lock(&client_mutex); |
01b9d99a | 1856 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1857 | |
f0fba2ad | 1858 | /* bind DAIs */ |
b19e6e7b | 1859 | for (i = 0; i < card->num_links; i++) { |
6f2f1ff0 | 1860 | ret = soc_bind_dai_link(card, &card->dai_link[i]); |
b19e6e7b MB |
1861 | if (ret != 0) |
1862 | goto base_error; | |
1863 | } | |
fe3e78e0 | 1864 | |
44c69bb1 | 1865 | /* bind aux_devs too */ |
b19e6e7b | 1866 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 1867 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
1868 | if (ret != 0) |
1869 | goto base_error; | |
f0fba2ad | 1870 | } |
435c5e25 | 1871 | |
f8f80361 ML |
1872 | /* add predefined DAI links to the list */ |
1873 | for (i = 0; i < card->num_links; i++) | |
1874 | snd_soc_add_dai_link(card, card->dai_link+i); | |
1875 | ||
f0fba2ad | 1876 | /* card bind complete so register a sound card */ |
102b5a8d | 1877 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1878 | card->owner, 0, &card->snd_card); |
1879 | if (ret < 0) { | |
10e8aa9a MM |
1880 | dev_err(card->dev, |
1881 | "ASoC: can't create sound card for card %s: %d\n", | |
1882 | card->name, ret); | |
b19e6e7b | 1883 | goto base_error; |
f0fba2ad | 1884 | } |
f0fba2ad | 1885 | |
0757d834 LPC |
1886 | soc_init_card_debugfs(card); |
1887 | ||
e37a4970 MB |
1888 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1889 | card->dapm.dev = card->dev; | |
1890 | card->dapm.card = card; | |
1891 | list_add(&card->dapm.list, &card->dapm_list); | |
1892 | ||
d5d1e0be LPC |
1893 | #ifdef CONFIG_DEBUG_FS |
1894 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1895 | #endif | |
1896 | ||
88ee1c61 | 1897 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1898 | /* deferred resume work */ |
1899 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1900 | #endif | |
db2a4165 | 1901 | |
9a841ebb MB |
1902 | if (card->dapm_widgets) |
1903 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1904 | card->num_dapm_widgets); | |
1905 | ||
f23e860e NC |
1906 | if (card->of_dapm_widgets) |
1907 | snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, | |
1908 | card->num_of_dapm_widgets); | |
1909 | ||
f0fba2ad LG |
1910 | /* initialise the sound card only once */ |
1911 | if (card->probe) { | |
e7361ec4 | 1912 | ret = card->probe(card); |
f0fba2ad LG |
1913 | if (ret < 0) |
1914 | goto card_probe_error; | |
1915 | } | |
fe3e78e0 | 1916 | |
62ae68fa | 1917 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1918 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1919 | order++) { | |
1a497983 ML |
1920 | list_for_each_entry(rtd, &card->rtd_list, list) { |
1921 | ret = soc_probe_link_components(card, rtd, order); | |
0168bf0d | 1922 | if (ret < 0) { |
f110bfc7 LG |
1923 | dev_err(card->dev, |
1924 | "ASoC: failed to instantiate card %d\n", | |
1925 | ret); | |
62ae68fa SW |
1926 | goto probe_dai_err; |
1927 | } | |
1928 | } | |
1929 | } | |
1930 | ||
f2ed6b07 ML |
1931 | /* probe auxiliary components */ |
1932 | ret = soc_probe_aux_devices(card); | |
1933 | if (ret < 0) | |
1934 | goto probe_dai_err; | |
1935 | ||
61b0088b ML |
1936 | /* Find new DAI links added during probing components and bind them. |
1937 | * Components with topology may bring new DAIs and DAI links. | |
1938 | */ | |
1939 | list_for_each_entry(dai_link, &card->dai_link_list, list) { | |
1940 | if (soc_is_dai_link_bound(card, dai_link)) | |
1941 | continue; | |
1942 | ||
1943 | ret = soc_init_dai_link(card, dai_link); | |
1944 | if (ret) | |
1945 | goto probe_dai_err; | |
1946 | ret = soc_bind_dai_link(card, dai_link); | |
1947 | if (ret) | |
1948 | goto probe_dai_err; | |
1949 | } | |
1950 | ||
62ae68fa SW |
1951 | /* probe all DAI links on this card */ |
1952 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1953 | order++) { | |
1a497983 ML |
1954 | list_for_each_entry(rtd, &card->rtd_list, list) { |
1955 | ret = soc_probe_link_dais(card, rtd, order); | |
62ae68fa | 1956 | if (ret < 0) { |
f110bfc7 LG |
1957 | dev_err(card->dev, |
1958 | "ASoC: failed to instantiate card %d\n", | |
1959 | ret); | |
0168bf0d LG |
1960 | goto probe_dai_err; |
1961 | } | |
f0fba2ad LG |
1962 | } |
1963 | } | |
db2a4165 | 1964 | |
888df395 | 1965 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1966 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1967 | |
b7af1daf | 1968 | if (card->controls) |
022658be | 1969 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1970 | |
b8ad29de MB |
1971 | if (card->dapm_routes) |
1972 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1973 | card->num_dapm_routes); | |
1974 | ||
f23e860e NC |
1975 | if (card->of_dapm_routes) |
1976 | snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, | |
1977 | card->num_of_dapm_routes); | |
75d9ac46 | 1978 | |
861886d3 TI |
1979 | /* try to set some sane longname if DMI is available */ |
1980 | snd_soc_set_dmi_name(card, NULL); | |
1981 | ||
f0fba2ad | 1982 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1983 | "%s", card->name); |
22de71ba LG |
1984 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1985 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1986 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1987 | "%s", card->driver_name ? card->driver_name : card->name); | |
1988 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1989 | switch (card->snd_card->driver[i]) { | |
1990 | case '_': | |
1991 | case '-': | |
1992 | case '\0': | |
1993 | break; | |
1994 | default: | |
1995 | if (!isalnum(card->snd_card->driver[i])) | |
1996 | card->snd_card->driver[i] = '_'; | |
1997 | break; | |
1998 | } | |
1999 | } | |
f0fba2ad | 2000 | |
28e9ad92 MB |
2001 | if (card->late_probe) { |
2002 | ret = card->late_probe(card); | |
2003 | if (ret < 0) { | |
f110bfc7 | 2004 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
2005 | card->name, ret); |
2006 | goto probe_aux_dev_err; | |
2007 | } | |
2008 | } | |
2009 | ||
824ef826 | 2010 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 2011 | |
f0fba2ad LG |
2012 | ret = snd_card_register(card->snd_card); |
2013 | if (ret < 0) { | |
f110bfc7 LG |
2014 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
2015 | ret); | |
6b3ed785 | 2016 | goto probe_aux_dev_err; |
db2a4165 FM |
2017 | } |
2018 | ||
f0fba2ad | 2019 | card->instantiated = 1; |
4f4c0072 | 2020 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 2021 | mutex_unlock(&card->mutex); |
34e81ab4 | 2022 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
2023 | |
2024 | return 0; | |
f0fba2ad | 2025 | |
2eea392d | 2026 | probe_aux_dev_err: |
f2ed6b07 | 2027 | soc_remove_aux_devices(card); |
2eea392d | 2028 | |
f0fba2ad | 2029 | probe_dai_err: |
0671fd8e | 2030 | soc_remove_dai_links(card); |
f0fba2ad LG |
2031 | |
2032 | card_probe_error: | |
87506549 | 2033 | if (card->remove) |
e7361ec4 | 2034 | card->remove(card); |
f0fba2ad | 2035 | |
2210438b | 2036 | snd_soc_dapm_free(&card->dapm); |
0757d834 | 2037 | soc_cleanup_card_debugfs(card); |
f0fba2ad LG |
2038 | snd_card_free(card->snd_card); |
2039 | ||
b19e6e7b | 2040 | base_error: |
1a497983 | 2041 | soc_remove_pcm_runtimes(card); |
f0fba2ad | 2042 | mutex_unlock(&card->mutex); |
34e81ab4 | 2043 | mutex_unlock(&client_mutex); |
db2a4165 | 2044 | |
b19e6e7b | 2045 | return ret; |
435c5e25 MB |
2046 | } |
2047 | ||
2048 | /* probes a new socdev */ | |
2049 | static int soc_probe(struct platform_device *pdev) | |
2050 | { | |
f0fba2ad | 2051 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 2052 | |
70a7ca34 VK |
2053 | /* |
2054 | * no card, so machine driver should be registering card | |
2055 | * we should not be here in that case so ret error | |
2056 | */ | |
2057 | if (!card) | |
2058 | return -EINVAL; | |
2059 | ||
fe4085e8 | 2060 | dev_warn(&pdev->dev, |
f110bfc7 | 2061 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
2062 | card->name); |
2063 | ||
435c5e25 MB |
2064 | /* Bodge while we unpick instantiation */ |
2065 | card->dev = &pdev->dev; | |
f0fba2ad | 2066 | |
28d528c8 | 2067 | return snd_soc_register_card(card); |
db2a4165 FM |
2068 | } |
2069 | ||
b0e26485 | 2070 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 | 2071 | { |
1a497983 | 2072 | struct snd_soc_pcm_runtime *rtd; |
db2a4165 | 2073 | |
b0e26485 | 2074 | /* make sure any delayed work runs */ |
1a497983 | 2075 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2076 | flush_delayed_work(&rtd->delayed_work); |
914dc182 | 2077 | |
4efda5f2 TI |
2078 | /* free the ALSA card at first; this syncs with pending operations */ |
2079 | snd_card_free(card->snd_card); | |
2080 | ||
b0e26485 | 2081 | /* remove and free each DAI */ |
0671fd8e | 2082 | soc_remove_dai_links(card); |
1a497983 | 2083 | soc_remove_pcm_runtimes(card); |
2eea392d | 2084 | |
f2ed6b07 ML |
2085 | /* remove auxiliary devices */ |
2086 | soc_remove_aux_devices(card); | |
2087 | ||
d1e81428 | 2088 | snd_soc_dapm_free(&card->dapm); |
b0e26485 | 2089 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2090 | |
b0e26485 VK |
2091 | /* remove the card */ |
2092 | if (card->remove) | |
e7361ec4 | 2093 | card->remove(card); |
a6052154 | 2094 | |
b0e26485 | 2095 | return 0; |
b0e26485 VK |
2096 | } |
2097 | ||
2098 | /* removes a socdev */ | |
2099 | static int soc_remove(struct platform_device *pdev) | |
2100 | { | |
2101 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2102 | |
c5af3a2e | 2103 | snd_soc_unregister_card(card); |
db2a4165 FM |
2104 | return 0; |
2105 | } | |
2106 | ||
6f8ab4ac | 2107 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2108 | { |
6f8ab4ac | 2109 | struct snd_soc_card *card = dev_get_drvdata(dev); |
1a497983 | 2110 | struct snd_soc_pcm_runtime *rtd; |
51737470 MB |
2111 | |
2112 | if (!card->instantiated) | |
416356fc | 2113 | return 0; |
51737470 MB |
2114 | |
2115 | /* Flush out pmdown_time work - we actually do want to run it | |
2116 | * now, we're shutting down so no imminent restart. */ | |
1a497983 | 2117 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2118 | flush_delayed_work(&rtd->delayed_work); |
51737470 | 2119 | |
f0fba2ad | 2120 | snd_soc_dapm_shutdown(card); |
416356fc | 2121 | |
988e8cc4 | 2122 | /* deactivate pins to sleep state */ |
1a497983 | 2123 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f | 2124 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1a497983 | 2125 | int i; |
88bd870f | 2126 | |
988e8cc4 | 2127 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
1a497983 ML |
2128 | for (i = 0; i < rtd->num_codecs; i++) { |
2129 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
88bd870f BC |
2130 | pinctrl_pm_select_sleep_state(codec_dai->dev); |
2131 | } | |
988e8cc4 NC |
2132 | } |
2133 | ||
416356fc | 2134 | return 0; |
51737470 | 2135 | } |
6f8ab4ac | 2136 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2137 | |
6f8ab4ac | 2138 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
2139 | .suspend = snd_soc_suspend, |
2140 | .resume = snd_soc_resume, | |
2141 | .freeze = snd_soc_suspend, | |
2142 | .thaw = snd_soc_resume, | |
6f8ab4ac | 2143 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 2144 | .restore = snd_soc_resume, |
416356fc | 2145 | }; |
deb2607e | 2146 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2147 | |
db2a4165 FM |
2148 | /* ASoC platform driver */ |
2149 | static struct platform_driver soc_driver = { | |
2150 | .driver = { | |
2151 | .name = "soc-audio", | |
6f8ab4ac | 2152 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2153 | }, |
2154 | .probe = soc_probe, | |
2155 | .remove = soc_remove, | |
db2a4165 FM |
2156 | }; |
2157 | ||
db2a4165 FM |
2158 | /** |
2159 | * snd_soc_cnew - create new control | |
2160 | * @_template: control template | |
2161 | * @data: control private data | |
ac11a2b3 | 2162 | * @long_name: control long name |
efb7ac3f | 2163 | * @prefix: control name prefix |
db2a4165 FM |
2164 | * |
2165 | * Create a new mixer control from a template control. | |
2166 | * | |
2167 | * Returns 0 for success, else error. | |
2168 | */ | |
2169 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2170 | void *data, const char *long_name, |
efb7ac3f | 2171 | const char *prefix) |
db2a4165 FM |
2172 | { |
2173 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2174 | struct snd_kcontrol *kcontrol; |
2175 | char *name = NULL; | |
db2a4165 FM |
2176 | |
2177 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2178 | template.index = 0; |
2179 | ||
efb7ac3f MB |
2180 | if (!long_name) |
2181 | long_name = template.name; | |
2182 | ||
2183 | if (prefix) { | |
2b581074 | 2184 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
2185 | if (!name) |
2186 | return NULL; | |
2187 | ||
efb7ac3f MB |
2188 | template.name = name; |
2189 | } else { | |
2190 | template.name = long_name; | |
2191 | } | |
2192 | ||
2193 | kcontrol = snd_ctl_new1(&template, data); | |
2194 | ||
2195 | kfree(name); | |
2196 | ||
2197 | return kcontrol; | |
db2a4165 FM |
2198 | } |
2199 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2200 | ||
022658be LG |
2201 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2202 | const struct snd_kcontrol_new *controls, int num_controls, | |
2203 | const char *prefix, void *data) | |
2204 | { | |
2205 | int err, i; | |
2206 | ||
2207 | for (i = 0; i < num_controls; i++) { | |
2208 | const struct snd_kcontrol_new *control = &controls[i]; | |
2209 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2210 | control->name, prefix)); | |
2211 | if (err < 0) { | |
f110bfc7 LG |
2212 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
2213 | control->name, err); | |
022658be LG |
2214 | return err; |
2215 | } | |
2216 | } | |
2217 | ||
2218 | return 0; | |
2219 | } | |
2220 | ||
4fefd698 DP |
2221 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
2222 | const char *name) | |
2223 | { | |
2224 | struct snd_card *card = soc_card->snd_card; | |
2225 | struct snd_kcontrol *kctl; | |
2226 | ||
2227 | if (unlikely(!name)) | |
2228 | return NULL; | |
2229 | ||
2230 | list_for_each_entry(kctl, &card->controls, list) | |
2231 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
2232 | return kctl; | |
2233 | return NULL; | |
2234 | } | |
2235 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
2236 | ||
0f2780ad LPC |
2237 | /** |
2238 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
2239 | * | |
2240 | * @component: Component to add controls to | |
2241 | * @controls: Array of controls to add | |
2242 | * @num_controls: Number of elements in the array | |
2243 | * | |
2244 | * Return: 0 for success, else error. | |
2245 | */ | |
2246 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
2247 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
2248 | { | |
2249 | struct snd_card *card = component->card->snd_card; | |
2250 | ||
2251 | return snd_soc_add_controls(card, component->dev, controls, | |
2252 | num_controls, component->name_prefix, component); | |
2253 | } | |
2254 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
2255 | ||
022658be LG |
2256 | /** |
2257 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2258 | * Convenience function to add a list of controls. | |
2259 | * | |
2260 | * @soc_card: SoC card to add controls to | |
2261 | * @controls: array of controls to add | |
2262 | * @num_controls: number of elements in the array | |
2263 | * | |
2264 | * Return 0 for success, else error. | |
2265 | */ | |
2266 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2267 | const struct snd_kcontrol_new *controls, int num_controls) | |
2268 | { | |
2269 | struct snd_card *card = soc_card->snd_card; | |
2270 | ||
2271 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2272 | NULL, soc_card); | |
2273 | } | |
2274 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2275 | ||
2276 | /** | |
2277 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2278 | * Convienience function to add a list of controls. | |
2279 | * | |
2280 | * @dai: DAI to add controls to | |
2281 | * @controls: array of controls to add | |
2282 | * @num_controls: number of elements in the array | |
2283 | * | |
2284 | * Return 0 for success, else error. | |
2285 | */ | |
2286 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2287 | const struct snd_kcontrol_new *controls, int num_controls) | |
2288 | { | |
313665b9 | 2289 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2290 | |
2291 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2292 | NULL, dai); | |
2293 | } | |
2294 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2295 | ||
8c6529db LG |
2296 | /** |
2297 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2298 | * @dai: DAI | |
2299 | * @clk_id: DAI specific clock ID | |
2300 | * @freq: new clock frequency in Hz | |
2301 | * @dir: new clock direction - input/output. | |
2302 | * | |
2303 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2304 | */ | |
2305 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2306 | unsigned int freq, int dir) | |
2307 | { | |
46471925 | 2308 | if (dai->driver->ops->set_sysclk) |
f0fba2ad | 2309 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); |
71ccef0d KM |
2310 | |
2311 | return snd_soc_component_set_sysclk(dai->component, clk_id, 0, | |
2312 | freq, dir); | |
8c6529db LG |
2313 | } |
2314 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2315 | ||
71ccef0d KM |
2316 | /** |
2317 | * snd_soc_component_set_sysclk - configure COMPONENT system or master clock. | |
2318 | * @component: COMPONENT | |
2319 | * @clk_id: DAI specific clock ID | |
2320 | * @source: Source for the clock | |
2321 | * @freq: new clock frequency in Hz | |
2322 | * @dir: new clock direction - input/output. | |
2323 | * | |
2324 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2325 | */ | |
2326 | int snd_soc_component_set_sysclk(struct snd_soc_component *component, int clk_id, | |
2327 | int source, unsigned int freq, int dir) | |
2328 | { | |
71ccef0d KM |
2329 | if (component->driver->set_sysclk) |
2330 | return component->driver->set_sysclk(component, clk_id, source, | |
2331 | freq, dir); | |
2332 | ||
2333 | return -ENOTSUPP; | |
2334 | } | |
2335 | EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk); | |
2336 | ||
8c6529db LG |
2337 | /** |
2338 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2339 | * @dai: DAI | |
ac11a2b3 | 2340 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2341 | * @div: new clock divisor. |
2342 | * | |
2343 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2344 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2345 | * and frame clocks as low as possible to save system power. | |
2346 | */ | |
2347 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2348 | int div_id, int div) | |
2349 | { | |
46471925 | 2350 | if (dai->driver->ops->set_clkdiv) |
f0fba2ad | 2351 | return dai->driver->ops->set_clkdiv(dai, div_id, div); |
8c6529db LG |
2352 | else |
2353 | return -EINVAL; | |
2354 | } | |
2355 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2356 | ||
2357 | /** | |
2358 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2359 | * @dai: DAI | |
2360 | * @pll_id: DAI specific PLL ID | |
85488037 | 2361 | * @source: DAI specific source for the PLL |
8c6529db LG |
2362 | * @freq_in: PLL input clock frequency in Hz |
2363 | * @freq_out: requested PLL output clock frequency in Hz | |
2364 | * | |
2365 | * Configures and enables PLL to generate output clock based on input clock. | |
2366 | */ | |
85488037 MB |
2367 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2368 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2369 | { |
46471925 | 2370 | if (dai->driver->ops->set_pll) |
f0fba2ad | 2371 | return dai->driver->ops->set_pll(dai, pll_id, source, |
85488037 | 2372 | freq_in, freq_out); |
ef641e5d KM |
2373 | |
2374 | return snd_soc_component_set_pll(dai->component, pll_id, source, | |
2375 | freq_in, freq_out); | |
8c6529db LG |
2376 | } |
2377 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2378 | ||
ef641e5d KM |
2379 | /* |
2380 | * snd_soc_component_set_pll - configure component PLL. | |
2381 | * @component: COMPONENT | |
2382 | * @pll_id: DAI specific PLL ID | |
2383 | * @source: DAI specific source for the PLL | |
2384 | * @freq_in: PLL input clock frequency in Hz | |
2385 | * @freq_out: requested PLL output clock frequency in Hz | |
2386 | * | |
2387 | * Configures and enables PLL to generate output clock based on input clock. | |
2388 | */ | |
2389 | int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id, | |
2390 | int source, unsigned int freq_in, | |
2391 | unsigned int freq_out) | |
2392 | { | |
ef641e5d KM |
2393 | if (component->driver->set_pll) |
2394 | return component->driver->set_pll(component, pll_id, source, | |
2395 | freq_in, freq_out); | |
2396 | ||
2397 | return -EINVAL; | |
2398 | } | |
2399 | EXPORT_SYMBOL_GPL(snd_soc_component_set_pll); | |
2400 | ||
e54cf76b LG |
2401 | /** |
2402 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2403 | * @dai: DAI | |
231b86b1 | 2404 | * @ratio: Ratio of BCLK to Sample rate. |
e54cf76b LG |
2405 | * |
2406 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2407 | */ | |
2408 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2409 | { | |
46471925 | 2410 | if (dai->driver->ops->set_bclk_ratio) |
e54cf76b LG |
2411 | return dai->driver->ops->set_bclk_ratio(dai, ratio); |
2412 | else | |
2413 | return -EINVAL; | |
2414 | } | |
2415 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2416 | ||
8c6529db LG |
2417 | /** |
2418 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2419 | * @dai: DAI | |
bb19ba2a | 2420 | * @fmt: SND_SOC_DAIFMT_* format value. |
8c6529db LG |
2421 | * |
2422 | * Configures the DAI hardware format and clocking. | |
2423 | */ | |
2424 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2425 | { | |
5e4ba569 | 2426 | if (dai->driver == NULL) |
8c6529db | 2427 | return -EINVAL; |
5e4ba569 SG |
2428 | if (dai->driver->ops->set_fmt == NULL) |
2429 | return -ENOTSUPP; | |
2430 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2431 | } |
2432 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2433 | ||
89c67857 | 2434 | /** |
e5c21514 | 2435 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2436 | * @slots: Number of slots in use. |
2437 | * @tx_mask: bitmask representing active TX slots. | |
2438 | * @rx_mask: bitmask representing active RX slots. | |
2439 | * | |
2440 | * Generates the TDM tx and rx slot default masks for DAI. | |
2441 | */ | |
e5c21514 | 2442 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2443 | unsigned int *tx_mask, |
2444 | unsigned int *rx_mask) | |
2445 | { | |
2446 | if (*tx_mask || *rx_mask) | |
2447 | return 0; | |
2448 | ||
2449 | if (!slots) | |
2450 | return -EINVAL; | |
2451 | ||
2452 | *tx_mask = (1 << slots) - 1; | |
2453 | *rx_mask = (1 << slots) - 1; | |
2454 | ||
2455 | return 0; | |
2456 | } | |
2457 | ||
8c6529db | 2458 | /** |
e46c9366 LPC |
2459 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2460 | * @dai: The DAI to configure | |
a5479e38 DR |
2461 | * @tx_mask: bitmask representing active TX slots. |
2462 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2463 | * @slots: Number of slots in use. |
a5479e38 | 2464 | * @slot_width: Width in bits for each slot. |
8c6529db | 2465 | * |
e46c9366 LPC |
2466 | * This function configures the specified DAI for TDM operation. @slot contains |
2467 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2468 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2469 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2470 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2471 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2472 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2473 | * maps to the first channel of the DAI, the second active slot to the second | |
2474 | * channel and so on. | |
2475 | * | |
2476 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2477 | * @rx_mask and @slot_width will be ignored. | |
2478 | * | |
2479 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2480 | */ |
2481 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2482 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2483 | { |
46471925 | 2484 | if (dai->driver->ops->xlate_tdm_slot_mask) |
e5c21514 | 2485 | dai->driver->ops->xlate_tdm_slot_mask(slots, |
89c67857 XL |
2486 | &tx_mask, &rx_mask); |
2487 | else | |
e5c21514 | 2488 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2489 | |
88bd870f BC |
2490 | dai->tx_mask = tx_mask; |
2491 | dai->rx_mask = rx_mask; | |
2492 | ||
46471925 | 2493 | if (dai->driver->ops->set_tdm_slot) |
f0fba2ad | 2494 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, |
a5479e38 | 2495 | slots, slot_width); |
8c6529db | 2496 | else |
b2cbb6e1 | 2497 | return -ENOTSUPP; |
8c6529db LG |
2498 | } |
2499 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2500 | ||
472df3cb BS |
2501 | /** |
2502 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2503 | * @dai: DAI | |
2504 | * @tx_num: how many TX channels | |
2505 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2506 | * 0~num-1 uses | |
2507 | * @rx_num: how many RX channels | |
2508 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2509 | * 0~num-1 uses | |
2510 | * | |
2511 | * configure the relationship between channel number and TDM slot number. | |
2512 | */ | |
2513 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2514 | unsigned int tx_num, unsigned int *tx_slot, | |
2515 | unsigned int rx_num, unsigned int *rx_slot) | |
2516 | { | |
46471925 | 2517 | if (dai->driver->ops->set_channel_map) |
f0fba2ad | 2518 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, |
472df3cb BS |
2519 | rx_num, rx_slot); |
2520 | else | |
2521 | return -EINVAL; | |
2522 | } | |
2523 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2524 | ||
8c6529db LG |
2525 | /** |
2526 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2527 | * @dai: DAI | |
2528 | * @tristate: tristate enable | |
2529 | * | |
2530 | * Tristates the DAI so that others can use it. | |
2531 | */ | |
2532 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2533 | { | |
46471925 | 2534 | if (dai->driver->ops->set_tristate) |
f0fba2ad | 2535 | return dai->driver->ops->set_tristate(dai, tristate); |
8c6529db LG |
2536 | else |
2537 | return -EINVAL; | |
2538 | } | |
2539 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2540 | ||
2541 | /** | |
2542 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2543 | * @dai: DAI | |
2544 | * @mute: mute enable | |
da18396f | 2545 | * @direction: stream to mute |
8c6529db LG |
2546 | * |
2547 | * Mutes the DAI DAC. | |
2548 | */ | |
da18396f MB |
2549 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2550 | int direction) | |
8c6529db | 2551 | { |
da18396f MB |
2552 | if (!dai->driver) |
2553 | return -ENOTSUPP; | |
2554 | ||
2555 | if (dai->driver->ops->mute_stream) | |
2556 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2557 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2558 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2559 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2560 | else |
04570c62 | 2561 | return -ENOTSUPP; |
8c6529db LG |
2562 | } |
2563 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2564 | ||
c5af3a2e MB |
2565 | /** |
2566 | * snd_soc_register_card - Register a card with the ASoC core | |
2567 | * | |
ac11a2b3 | 2568 | * @card: Card to register |
c5af3a2e | 2569 | * |
c5af3a2e | 2570 | */ |
70a7ca34 | 2571 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2572 | { |
923c5e61 | 2573 | int i, ret; |
1a497983 | 2574 | struct snd_soc_pcm_runtime *rtd; |
f0fba2ad | 2575 | |
c5af3a2e MB |
2576 | if (!card->name || !card->dev) |
2577 | return -EINVAL; | |
2578 | ||
5a504963 SW |
2579 | for (i = 0; i < card->num_links; i++) { |
2580 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2581 | ||
923c5e61 | 2582 | ret = soc_init_dai_link(card, link); |
88bd870f | 2583 | if (ret) { |
923c5e61 | 2584 | dev_err(card->dev, "ASoC: failed to init link %s\n", |
10e8aa9a | 2585 | link->name); |
923c5e61 | 2586 | return ret; |
5a504963 SW |
2587 | } |
2588 | } | |
2589 | ||
ed77cc12 MB |
2590 | dev_set_drvdata(card->dev, card); |
2591 | ||
111c6419 SW |
2592 | snd_soc_initialize_card_lists(card); |
2593 | ||
f8f80361 ML |
2594 | INIT_LIST_HEAD(&card->dai_link_list); |
2595 | card->num_dai_links = 0; | |
2596 | ||
1a497983 ML |
2597 | INIT_LIST_HEAD(&card->rtd_list); |
2598 | card->num_rtd = 0; | |
2599 | ||
db432b41 | 2600 | INIT_LIST_HEAD(&card->dapm_dirty); |
8a978234 | 2601 | INIT_LIST_HEAD(&card->dobj_list); |
c5af3a2e | 2602 | card->instantiated = 0; |
f0fba2ad | 2603 | mutex_init(&card->mutex); |
a73fb2df | 2604 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2605 | |
b19e6e7b MB |
2606 | ret = snd_soc_instantiate_card(card); |
2607 | if (ret != 0) | |
4e2576bd | 2608 | return ret; |
c5af3a2e | 2609 | |
988e8cc4 | 2610 | /* deactivate pins to sleep state */ |
1a497983 | 2611 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
2612 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2613 | int j; | |
2614 | ||
2615 | for (j = 0; j < rtd->num_codecs; j++) { | |
2616 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2617 | if (!codec_dai->active) | |
2618 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2619 | } | |
2620 | ||
988e8cc4 NC |
2621 | if (!cpu_dai->active) |
2622 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2623 | } | |
2624 | ||
b19e6e7b | 2625 | return ret; |
c5af3a2e | 2626 | } |
70a7ca34 | 2627 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2628 | |
2629 | /** | |
2630 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2631 | * | |
ac11a2b3 | 2632 | * @card: Card to unregister |
c5af3a2e | 2633 | * |
c5af3a2e | 2634 | */ |
70a7ca34 | 2635 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2636 | { |
01e0df66 LPC |
2637 | if (card->instantiated) { |
2638 | card->instantiated = false; | |
1c325f77 | 2639 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2640 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2641 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2642 | } |
c5af3a2e MB |
2643 | |
2644 | return 0; | |
2645 | } | |
70a7ca34 | 2646 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2647 | |
f0fba2ad LG |
2648 | /* |
2649 | * Simplify DAI link configuration by removing ".-1" from device names | |
2650 | * and sanitizing names. | |
2651 | */ | |
0b9a214a | 2652 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2653 | { |
2654 | char *found, name[NAME_SIZE]; | |
2655 | int id1, id2; | |
2656 | ||
2657 | if (dev_name(dev) == NULL) | |
2658 | return NULL; | |
2659 | ||
58818a77 | 2660 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2661 | |
2662 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2663 | found = strstr(name, dev->driver->name); | |
2664 | if (found) { | |
2665 | /* get ID */ | |
2666 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2667 | ||
2668 | /* discard ID from name if ID == -1 */ | |
2669 | if (*id == -1) | |
2670 | found[strlen(dev->driver->name)] = '\0'; | |
2671 | } | |
2672 | ||
2673 | } else { | |
2674 | /* I2C component devices are named "bus-addr" */ | |
2675 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2676 | char tmp[NAME_SIZE]; | |
2677 | ||
2678 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2679 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2680 | |
2681 | /* sanitize component name for DAI link creation */ | |
2682 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2683 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2684 | } else |
2685 | *id = 0; | |
2686 | } | |
2687 | ||
2688 | return kstrdup(name, GFP_KERNEL); | |
2689 | } | |
2690 | ||
2691 | /* | |
2692 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2693 | * any ".-1" and using the DAI name (instead of device name). | |
2694 | */ | |
2695 | static inline char *fmt_multiple_name(struct device *dev, | |
2696 | struct snd_soc_dai_driver *dai_drv) | |
2697 | { | |
2698 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2699 | dev_err(dev, |
2700 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2701 | dev_name(dev)); | |
f0fba2ad LG |
2702 | return NULL; |
2703 | } | |
2704 | ||
2705 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2706 | } | |
2707 | ||
9115171a | 2708 | /** |
32c9ba54 | 2709 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2710 | * |
32c9ba54 | 2711 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2712 | */ |
32c9ba54 | 2713 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2714 | { |
5c1d5f09 | 2715 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2716 | |
5c1d5f09 | 2717 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2718 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2719 | dai->name); | |
5c1d5f09 | 2720 | list_del(&dai->list); |
32c9ba54 | 2721 | kfree(dai->name); |
f0fba2ad | 2722 | kfree(dai); |
f0fba2ad | 2723 | } |
9115171a | 2724 | } |
9115171a | 2725 | |
5e4fb372 ML |
2726 | /* Create a DAI and add it to the component's DAI list */ |
2727 | static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, | |
2728 | struct snd_soc_dai_driver *dai_drv, | |
2729 | bool legacy_dai_naming) | |
2730 | { | |
2731 | struct device *dev = component->dev; | |
2732 | struct snd_soc_dai *dai; | |
2733 | ||
2734 | dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); | |
2735 | ||
2736 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
2737 | if (dai == NULL) | |
2738 | return NULL; | |
2739 | ||
2740 | /* | |
2741 | * Back in the old days when we still had component-less DAIs, | |
2742 | * instead of having a static name, component-less DAIs would | |
2743 | * inherit the name of the parent device so it is possible to | |
2744 | * register multiple instances of the DAI. We still need to keep | |
2745 | * the same naming style even though those DAIs are not | |
2746 | * component-less anymore. | |
2747 | */ | |
2748 | if (legacy_dai_naming && | |
2749 | (dai_drv->id == 0 || dai_drv->name == NULL)) { | |
2750 | dai->name = fmt_single_name(dev, &dai->id); | |
2751 | } else { | |
2752 | dai->name = fmt_multiple_name(dev, dai_drv); | |
2753 | if (dai_drv->id) | |
2754 | dai->id = dai_drv->id; | |
2755 | else | |
2756 | dai->id = component->num_dai; | |
2757 | } | |
2758 | if (dai->name == NULL) { | |
2759 | kfree(dai); | |
2760 | return NULL; | |
2761 | } | |
2762 | ||
2763 | dai->component = component; | |
2764 | dai->dev = dev; | |
2765 | dai->driver = dai_drv; | |
2766 | if (!dai->driver->ops) | |
2767 | dai->driver->ops = &null_dai_ops; | |
2768 | ||
58bf4179 | 2769 | list_add_tail(&dai->list, &component->dai_list); |
5e4fb372 ML |
2770 | component->num_dai++; |
2771 | ||
2772 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); | |
2773 | return dai; | |
2774 | } | |
2775 | ||
9115171a | 2776 | /** |
32c9ba54 | 2777 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 2778 | * |
6106d129 LPC |
2779 | * @component: The component the DAIs are registered for |
2780 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 2781 | * @count: Number of DAIs |
32c9ba54 LPC |
2782 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
2783 | * parent's name. | |
9115171a | 2784 | */ |
6106d129 | 2785 | static int snd_soc_register_dais(struct snd_soc_component *component, |
0e7b25c6 | 2786 | struct snd_soc_dai_driver *dai_drv, size_t count) |
9115171a | 2787 | { |
6106d129 | 2788 | struct device *dev = component->dev; |
f0fba2ad | 2789 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
2790 | unsigned int i; |
2791 | int ret; | |
f0fba2ad | 2792 | |
5b5e0928 | 2793 | dev_dbg(dev, "ASoC: dai register %s #%zu\n", dev_name(dev), count); |
9115171a MB |
2794 | |
2795 | for (i = 0; i < count; i++) { | |
f0fba2ad | 2796 | |
5e4fb372 | 2797 | dai = soc_add_dai(component, dai_drv + i, |
0e7b25c6 | 2798 | count == 1 && !component->driver->non_legacy_dai_naming); |
c46e0079 AL |
2799 | if (dai == NULL) { |
2800 | ret = -ENOMEM; | |
2801 | goto err; | |
2802 | } | |
9115171a | 2803 | } |
f0fba2ad | 2804 | |
9115171a | 2805 | return 0; |
f0fba2ad | 2806 | |
9115171a | 2807 | err: |
32c9ba54 | 2808 | snd_soc_unregister_dais(component); |
f0fba2ad | 2809 | |
9115171a MB |
2810 | return ret; |
2811 | } | |
9115171a | 2812 | |
68003e6c ML |
2813 | /** |
2814 | * snd_soc_register_dai - Register a DAI dynamically & create its widgets | |
2815 | * | |
2816 | * @component: The component the DAIs are registered for | |
2817 | * @dai_drv: DAI driver to use for the DAI | |
2818 | * | |
2819 | * Topology can use this API to register DAIs when probing a component. | |
2820 | * These DAIs's widgets will be freed in the card cleanup and the DAIs | |
2821 | * will be freed in the component cleanup. | |
2822 | */ | |
2823 | int snd_soc_register_dai(struct snd_soc_component *component, | |
2824 | struct snd_soc_dai_driver *dai_drv) | |
2825 | { | |
2826 | struct snd_soc_dapm_context *dapm = | |
2827 | snd_soc_component_get_dapm(component); | |
2828 | struct snd_soc_dai *dai; | |
2829 | int ret; | |
054880fe | 2830 | |
68003e6c ML |
2831 | if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) { |
2832 | dev_err(component->dev, "Invalid dai type %d\n", | |
2833 | dai_drv->dobj.type); | |
2834 | return -EINVAL; | |
9115171a MB |
2835 | } |
2836 | ||
68003e6c ML |
2837 | lockdep_assert_held(&client_mutex); |
2838 | dai = soc_add_dai(component, dai_drv, false); | |
2839 | if (!dai) | |
2840 | return -ENOMEM; | |
9115171a | 2841 | |
68003e6c ML |
2842 | /* Create the DAI widgets here. After adding DAIs, topology may |
2843 | * also add routes that need these widgets as source or sink. | |
2844 | */ | |
2845 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
2846 | if (ret != 0) { | |
2847 | dev_err(component->dev, | |
2848 | "Failed to create DAI widgets %d\n", ret); | |
2849 | } | |
9115171a MB |
2850 | |
2851 | return ret; | |
2852 | } | |
68003e6c | 2853 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); |
9115171a | 2854 | |
14e8bdeb LPC |
2855 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
2856 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 2857 | { |
14e8bdeb | 2858 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 2859 | |
14e8bdeb LPC |
2860 | component->driver->seq_notifier(component, type, subseq); |
2861 | } | |
d191bd8d | 2862 | |
14e8bdeb LPC |
2863 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
2864 | int event) | |
2865 | { | |
2866 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 2867 | |
14e8bdeb LPC |
2868 | return component->driver->stream_event(component, event); |
2869 | } | |
e2c330b9 | 2870 | |
7ba236ce KM |
2871 | static int snd_soc_component_set_bias_level(struct snd_soc_dapm_context *dapm, |
2872 | enum snd_soc_bias_level level) | |
2873 | { | |
2874 | struct snd_soc_component *component = dapm->component; | |
2875 | ||
2876 | return component->driver->set_bias_level(component, level); | |
2877 | } | |
2878 | ||
bb13109d LPC |
2879 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
2880 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 2881 | { |
ce0fc93a LPC |
2882 | struct snd_soc_dapm_context *dapm; |
2883 | ||
bb13109d LPC |
2884 | component->name = fmt_single_name(dev, &component->id); |
2885 | if (!component->name) { | |
2886 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
2887 | return -ENOMEM; |
2888 | } | |
2889 | ||
bb13109d LPC |
2890 | component->dev = dev; |
2891 | component->driver = driver; | |
d191bd8d | 2892 | |
88c27465 | 2893 | dapm = snd_soc_component_get_dapm(component); |
ce0fc93a LPC |
2894 | dapm->dev = dev; |
2895 | dapm->component = component; | |
2896 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
7ba236ce KM |
2897 | dapm->idle_bias_off = !driver->idle_bias_on; |
2898 | dapm->suspend_bias_off = driver->suspend_bias_off; | |
14e8bdeb LPC |
2899 | if (driver->seq_notifier) |
2900 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
2901 | if (driver->stream_event) | |
2902 | dapm->stream_event = snd_soc_component_stream_event; | |
7ba236ce KM |
2903 | if (driver->set_bias_level) |
2904 | dapm->set_bias_level = snd_soc_component_set_bias_level; | |
d191bd8d | 2905 | |
bb13109d LPC |
2906 | INIT_LIST_HEAD(&component->dai_list); |
2907 | mutex_init(&component->io_mutex); | |
d191bd8d | 2908 | |
bb13109d LPC |
2909 | return 0; |
2910 | } | |
d191bd8d | 2911 | |
20feb881 | 2912 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 2913 | { |
20feb881 LPC |
2914 | int val_bytes = regmap_get_val_bytes(component->regmap); |
2915 | ||
2916 | /* Errors are legitimate for non-integer byte multiples */ | |
2917 | if (val_bytes > 0) | |
2918 | component->val_bytes = val_bytes; | |
2919 | } | |
2920 | ||
e874bf5f LPC |
2921 | #ifdef CONFIG_REGMAP |
2922 | ||
20feb881 LPC |
2923 | /** |
2924 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
2925 | * @component: The component for which to initialize the regmap instance | |
2926 | * @regmap: The regmap instance that should be used by the component | |
2927 | * | |
2928 | * This function allows deferred assignment of the regmap instance that is | |
2929 | * associated with the component. Only use this if the regmap instance is not | |
2930 | * yet ready when the component is registered. The function must also be called | |
2931 | * before the first IO attempt of the component. | |
2932 | */ | |
2933 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
2934 | struct regmap *regmap) | |
2935 | { | |
2936 | component->regmap = regmap; | |
2937 | snd_soc_component_setup_regmap(component); | |
886f5692 | 2938 | } |
20feb881 LPC |
2939 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
2940 | ||
2941 | /** | |
2942 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
2943 | * @component: The component for which to de-initialize the regmap instance | |
2944 | * | |
2945 | * Calls regmap_exit() on the regmap instance associated to the component and | |
2946 | * removes the regmap instance from the component. | |
2947 | * | |
2948 | * This function should only be used if snd_soc_component_init_regmap() was used | |
2949 | * to initialize the regmap instance. | |
2950 | */ | |
2951 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
2952 | { | |
2953 | regmap_exit(component->regmap); | |
2954 | component->regmap = NULL; | |
2955 | } | |
2956 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 2957 | |
e874bf5f | 2958 | #endif |
886f5692 | 2959 | |
359c71ee | 2960 | static void snd_soc_component_add(struct snd_soc_component *component) |
bb13109d | 2961 | { |
359c71ee KM |
2962 | mutex_lock(&client_mutex); |
2963 | ||
999f7f5a | 2964 | if (!component->driver->write && !component->driver->read) { |
20feb881 LPC |
2965 | if (!component->regmap) |
2966 | component->regmap = dev_get_regmap(component->dev, NULL); | |
2967 | if (component->regmap) | |
2968 | snd_soc_component_setup_regmap(component); | |
2969 | } | |
886f5692 | 2970 | |
bb13109d | 2971 | list_add(&component->list, &component_list); |
8a978234 | 2972 | INIT_LIST_HEAD(&component->dobj_list); |
d191bd8d | 2973 | |
d191bd8d | 2974 | mutex_unlock(&client_mutex); |
bb13109d | 2975 | } |
d191bd8d | 2976 | |
bb13109d LPC |
2977 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
2978 | { | |
2979 | snd_soc_unregister_dais(component); | |
2980 | kfree(component->name); | |
2981 | } | |
d191bd8d | 2982 | |
bb13109d LPC |
2983 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
2984 | { | |
c12c1aad KM |
2985 | struct snd_soc_card *card = component->card; |
2986 | ||
2987 | if (card) | |
2988 | snd_soc_unregister_card(card); | |
2989 | ||
bb13109d LPC |
2990 | list_del(&component->list); |
2991 | } | |
d191bd8d | 2992 | |
273d778e KM |
2993 | #define ENDIANNESS_MAP(name) \ |
2994 | (SNDRV_PCM_FMTBIT_##name##LE | SNDRV_PCM_FMTBIT_##name##BE) | |
2995 | static u64 endianness_format_map[] = { | |
2996 | ENDIANNESS_MAP(S16_), | |
2997 | ENDIANNESS_MAP(U16_), | |
2998 | ENDIANNESS_MAP(S24_), | |
2999 | ENDIANNESS_MAP(U24_), | |
3000 | ENDIANNESS_MAP(S32_), | |
3001 | ENDIANNESS_MAP(U32_), | |
3002 | ENDIANNESS_MAP(S24_3), | |
3003 | ENDIANNESS_MAP(U24_3), | |
3004 | ENDIANNESS_MAP(S20_3), | |
3005 | ENDIANNESS_MAP(U20_3), | |
3006 | ENDIANNESS_MAP(S18_3), | |
3007 | ENDIANNESS_MAP(U18_3), | |
3008 | ENDIANNESS_MAP(FLOAT_), | |
3009 | ENDIANNESS_MAP(FLOAT64_), | |
3010 | ENDIANNESS_MAP(IEC958_SUBFRAME_), | |
3011 | }; | |
3012 | ||
3013 | /* | |
3014 | * Fix up the DAI formats for endianness: codecs don't actually see | |
3015 | * the endianness of the data but we're using the CPU format | |
3016 | * definitions which do need to include endianness so we ensure that | |
3017 | * codec DAIs always have both big and little endian variants set. | |
3018 | */ | |
3019 | static void convert_endianness_formats(struct snd_soc_pcm_stream *stream) | |
3020 | { | |
3021 | int i; | |
3022 | ||
3023 | for (i = 0; i < ARRAY_SIZE(endianness_format_map); i++) | |
3024 | if (stream->formats & endianness_format_map[i]) | |
3025 | stream->formats |= endianness_format_map[i]; | |
3026 | } | |
3027 | ||
e0dac41b KM |
3028 | int snd_soc_add_component(struct device *dev, |
3029 | struct snd_soc_component *component, | |
3030 | const struct snd_soc_component_driver *component_driver, | |
3031 | struct snd_soc_dai_driver *dai_drv, | |
3032 | int num_dai) | |
d191bd8d | 3033 | { |
bb13109d | 3034 | int ret; |
273d778e | 3035 | int i; |
d191bd8d | 3036 | |
cf9e829e | 3037 | ret = snd_soc_component_initialize(component, component_driver, dev); |
bb13109d LPC |
3038 | if (ret) |
3039 | goto err_free; | |
3040 | ||
273d778e KM |
3041 | if (component_driver->endianness) { |
3042 | for (i = 0; i < num_dai; i++) { | |
3043 | convert_endianness_formats(&dai_drv[i].playback); | |
3044 | convert_endianness_formats(&dai_drv[i].capture); | |
3045 | } | |
3046 | } | |
3047 | ||
0e7b25c6 | 3048 | ret = snd_soc_register_dais(component, dai_drv, num_dai); |
bb13109d | 3049 | if (ret < 0) { |
f42cf8d6 | 3050 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d LPC |
3051 | goto err_cleanup; |
3052 | } | |
d191bd8d | 3053 | |
cf9e829e | 3054 | snd_soc_component_add(component); |
4da53393 | 3055 | |
bb13109d | 3056 | return 0; |
4da53393 | 3057 | |
bb13109d | 3058 | err_cleanup: |
cf9e829e | 3059 | snd_soc_component_cleanup(component); |
bb13109d | 3060 | err_free: |
bb13109d | 3061 | return ret; |
4da53393 | 3062 | } |
e0dac41b KM |
3063 | EXPORT_SYMBOL_GPL(snd_soc_add_component); |
3064 | ||
3065 | int snd_soc_register_component(struct device *dev, | |
3066 | const struct snd_soc_component_driver *component_driver, | |
3067 | struct snd_soc_dai_driver *dai_drv, | |
3068 | int num_dai) | |
3069 | { | |
3070 | struct snd_soc_component *component; | |
3071 | ||
7ecbd6a9 | 3072 | component = devm_kzalloc(dev, sizeof(*component), GFP_KERNEL); |
08e61d03 | 3073 | if (!component) |
e0dac41b | 3074 | return -ENOMEM; |
e0dac41b KM |
3075 | |
3076 | return snd_soc_add_component(dev, component, component_driver, | |
3077 | dai_drv, num_dai); | |
3078 | } | |
bb13109d | 3079 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 3080 | |
d191bd8d | 3081 | /** |
2eccea8c KM |
3082 | * snd_soc_unregister_component - Unregister all related component |
3083 | * from the ASoC core | |
d191bd8d | 3084 | * |
628536ea | 3085 | * @dev: The device to unregister |
d191bd8d | 3086 | */ |
2eccea8c | 3087 | static int __snd_soc_unregister_component(struct device *dev) |
d191bd8d | 3088 | { |
cf9e829e | 3089 | struct snd_soc_component *component; |
21a03528 | 3090 | int found = 0; |
d191bd8d | 3091 | |
34e81ab4 | 3092 | mutex_lock(&client_mutex); |
cf9e829e | 3093 | list_for_each_entry(component, &component_list, list) { |
999f7f5a | 3094 | if (dev != component->dev) |
21a03528 KM |
3095 | continue; |
3096 | ||
3097 | snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL); | |
3098 | snd_soc_component_del_unlocked(component); | |
3099 | found = 1; | |
3100 | break; | |
d191bd8d | 3101 | } |
34e81ab4 | 3102 | mutex_unlock(&client_mutex); |
d191bd8d | 3103 | |
21a03528 KM |
3104 | if (found) { |
3105 | snd_soc_component_cleanup(component); | |
21a03528 | 3106 | } |
2eccea8c KM |
3107 | |
3108 | return found; | |
3109 | } | |
3110 | ||
3111 | void snd_soc_unregister_component(struct device *dev) | |
3112 | { | |
3113 | while (__snd_soc_unregister_component(dev)); | |
d191bd8d KM |
3114 | } |
3115 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 3116 | |
7dd5d0d9 KM |
3117 | struct snd_soc_component *snd_soc_lookup_component(struct device *dev, |
3118 | const char *driver_name) | |
3119 | { | |
3120 | struct snd_soc_component *component; | |
3121 | struct snd_soc_component *ret; | |
3122 | ||
3123 | ret = NULL; | |
3124 | mutex_lock(&client_mutex); | |
3125 | list_for_each_entry(component, &component_list, list) { | |
3126 | if (dev != component->dev) | |
3127 | continue; | |
3128 | ||
3129 | if (driver_name && | |
3130 | (driver_name != component->driver->name) && | |
3131 | (strcmp(component->driver->name, driver_name) != 0)) | |
3132 | continue; | |
3133 | ||
3134 | ret = component; | |
3135 | break; | |
3136 | } | |
3137 | mutex_unlock(&client_mutex); | |
3138 | ||
3139 | return ret; | |
3140 | } | |
3141 | EXPORT_SYMBOL_GPL(snd_soc_lookup_component); | |
3142 | ||
bec4fa05 | 3143 | /* Retrieve a card's name from device tree */ |
b07609ce KM |
3144 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, |
3145 | const char *propname) | |
bec4fa05 | 3146 | { |
b07609ce | 3147 | struct device_node *np; |
bec4fa05 SW |
3148 | int ret; |
3149 | ||
7e07e7c0 TB |
3150 | if (!card->dev) { |
3151 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3152 | return -EINVAL; | |
3153 | } | |
3154 | ||
b07609ce | 3155 | np = card->dev->of_node; |
7e07e7c0 | 3156 | |
bec4fa05 SW |
3157 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3158 | /* | |
3159 | * EINVAL means the property does not exist. This is fine providing | |
3160 | * card->name was previously set, which is checked later in | |
3161 | * snd_soc_register_card. | |
3162 | */ | |
3163 | if (ret < 0 && ret != -EINVAL) { | |
3164 | dev_err(card->dev, | |
f110bfc7 | 3165 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3166 | propname, ret); |
3167 | return ret; | |
3168 | } | |
3169 | ||
3170 | return 0; | |
3171 | } | |
b07609ce | 3172 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); |
bec4fa05 | 3173 | |
9a6d4860 XL |
3174 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3175 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3176 | SND_SOC_DAPM_LINE("Line", NULL), | |
3177 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3178 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3179 | }; | |
3180 | ||
21efde50 | 3181 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, |
9a6d4860 XL |
3182 | const char *propname) |
3183 | { | |
21efde50 | 3184 | struct device_node *np = card->dev->of_node; |
9a6d4860 XL |
3185 | struct snd_soc_dapm_widget *widgets; |
3186 | const char *template, *wname; | |
3187 | int i, j, num_widgets, ret; | |
3188 | ||
3189 | num_widgets = of_property_count_strings(np, propname); | |
3190 | if (num_widgets < 0) { | |
3191 | dev_err(card->dev, | |
3192 | "ASoC: Property '%s' does not exist\n", propname); | |
3193 | return -EINVAL; | |
3194 | } | |
3195 | if (num_widgets & 1) { | |
3196 | dev_err(card->dev, | |
3197 | "ASoC: Property '%s' length is not even\n", propname); | |
3198 | return -EINVAL; | |
3199 | } | |
3200 | ||
3201 | num_widgets /= 2; | |
3202 | if (!num_widgets) { | |
3203 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3204 | propname); | |
3205 | return -EINVAL; | |
3206 | } | |
3207 | ||
3208 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3209 | GFP_KERNEL); | |
3210 | if (!widgets) { | |
3211 | dev_err(card->dev, | |
3212 | "ASoC: Could not allocate memory for widgets\n"); | |
3213 | return -ENOMEM; | |
3214 | } | |
3215 | ||
3216 | for (i = 0; i < num_widgets; i++) { | |
3217 | ret = of_property_read_string_index(np, propname, | |
3218 | 2 * i, &template); | |
3219 | if (ret) { | |
3220 | dev_err(card->dev, | |
3221 | "ASoC: Property '%s' index %d read error:%d\n", | |
3222 | propname, 2 * i, ret); | |
3223 | return -EINVAL; | |
3224 | } | |
3225 | ||
3226 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3227 | if (!strncmp(template, simple_widgets[j].name, | |
3228 | strlen(simple_widgets[j].name))) { | |
3229 | widgets[i] = simple_widgets[j]; | |
3230 | break; | |
3231 | } | |
3232 | } | |
3233 | ||
3234 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3235 | dev_err(card->dev, | |
3236 | "ASoC: DAPM widget '%s' is not supported\n", | |
3237 | template); | |
3238 | return -EINVAL; | |
3239 | } | |
3240 | ||
3241 | ret = of_property_read_string_index(np, propname, | |
3242 | (2 * i) + 1, | |
3243 | &wname); | |
3244 | if (ret) { | |
3245 | dev_err(card->dev, | |
3246 | "ASoC: Property '%s' index %d read error:%d\n", | |
3247 | propname, (2 * i) + 1, ret); | |
3248 | return -EINVAL; | |
3249 | } | |
3250 | ||
3251 | widgets[i].name = wname; | |
3252 | } | |
3253 | ||
f23e860e NC |
3254 | card->of_dapm_widgets = widgets; |
3255 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
3256 | |
3257 | return 0; | |
3258 | } | |
21efde50 | 3259 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); |
9a6d4860 | 3260 | |
6131084a JS |
3261 | static int snd_soc_of_get_slot_mask(struct device_node *np, |
3262 | const char *prop_name, | |
3263 | unsigned int *mask) | |
3264 | { | |
3265 | u32 val; | |
6c84e591 | 3266 | const __be32 *of_slot_mask = of_get_property(np, prop_name, &val); |
6131084a JS |
3267 | int i; |
3268 | ||
3269 | if (!of_slot_mask) | |
3270 | return 0; | |
3271 | val /= sizeof(u32); | |
3272 | for (i = 0; i < val; i++) | |
3273 | if (be32_to_cpup(&of_slot_mask[i])) | |
3274 | *mask |= (1 << i); | |
3275 | ||
3276 | return val; | |
3277 | } | |
3278 | ||
89c67857 | 3279 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
6131084a JS |
3280 | unsigned int *tx_mask, |
3281 | unsigned int *rx_mask, | |
89c67857 XL |
3282 | unsigned int *slots, |
3283 | unsigned int *slot_width) | |
3284 | { | |
3285 | u32 val; | |
3286 | int ret; | |
3287 | ||
6131084a JS |
3288 | if (tx_mask) |
3289 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask); | |
3290 | if (rx_mask) | |
3291 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask); | |
3292 | ||
89c67857 XL |
3293 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { |
3294 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3295 | if (ret) | |
3296 | return ret; | |
3297 | ||
3298 | if (slots) | |
3299 | *slots = val; | |
3300 | } | |
3301 | ||
3302 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3303 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3304 | if (ret) | |
3305 | return ret; | |
3306 | ||
3307 | if (slot_width) | |
3308 | *slot_width = val; | |
3309 | } | |
3310 | ||
3311 | return 0; | |
3312 | } | |
3313 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3314 | ||
440a3006 | 3315 | void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, |
5e3cdaa2 KM |
3316 | struct snd_soc_codec_conf *codec_conf, |
3317 | struct device_node *of_node, | |
3318 | const char *propname) | |
3319 | { | |
440a3006 | 3320 | struct device_node *np = card->dev->of_node; |
5e3cdaa2 KM |
3321 | const char *str; |
3322 | int ret; | |
3323 | ||
3324 | ret = of_property_read_string(np, propname, &str); | |
3325 | if (ret < 0) { | |
3326 | /* no prefix is not error */ | |
3327 | return; | |
3328 | } | |
3329 | ||
3330 | codec_conf->of_node = of_node; | |
3331 | codec_conf->name_prefix = str; | |
3332 | } | |
440a3006 | 3333 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix); |
5e3cdaa2 | 3334 | |
2bc644af | 3335 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
a4a54dd5 SW |
3336 | const char *propname) |
3337 | { | |
2bc644af | 3338 | struct device_node *np = card->dev->of_node; |
e3b1e6a1 | 3339 | int num_routes; |
a4a54dd5 SW |
3340 | struct snd_soc_dapm_route *routes; |
3341 | int i, ret; | |
3342 | ||
3343 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3344 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3345 | dev_err(card->dev, |
3346 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3347 | propname); | |
a4a54dd5 SW |
3348 | return -EINVAL; |
3349 | } | |
3350 | num_routes /= 2; | |
3351 | if (!num_routes) { | |
f110bfc7 | 3352 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3353 | propname); |
3354 | return -EINVAL; | |
3355 | } | |
3356 | ||
e3b1e6a1 | 3357 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3358 | GFP_KERNEL); |
3359 | if (!routes) { | |
3360 | dev_err(card->dev, | |
f110bfc7 | 3361 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3362 | return -EINVAL; |
3363 | } | |
3364 | ||
3365 | for (i = 0; i < num_routes; i++) { | |
3366 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3367 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3368 | if (ret) { |
c871bd0b MB |
3369 | dev_err(card->dev, |
3370 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3371 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3372 | return -EINVAL; |
3373 | } | |
3374 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3375 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3376 | if (ret) { |
3377 | dev_err(card->dev, | |
c871bd0b MB |
3378 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3379 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3380 | return -EINVAL; |
3381 | } | |
3382 | } | |
3383 | ||
f23e860e NC |
3384 | card->num_of_dapm_routes = num_routes; |
3385 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
3386 | |
3387 | return 0; | |
3388 | } | |
2bc644af | 3389 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); |
a4a54dd5 | 3390 | |
a7930ed4 | 3391 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3392 | const char *prefix, |
3393 | struct device_node **bitclkmaster, | |
3394 | struct device_node **framemaster) | |
a7930ed4 KM |
3395 | { |
3396 | int ret, i; | |
3397 | char prop[128]; | |
3398 | unsigned int format = 0; | |
3399 | int bit, frame; | |
3400 | const char *str; | |
3401 | struct { | |
3402 | char *name; | |
3403 | unsigned int val; | |
3404 | } of_fmt_table[] = { | |
3405 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3406 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3407 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3408 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3409 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3410 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3411 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3412 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3413 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3414 | }; |
3415 | ||
3416 | if (!prefix) | |
3417 | prefix = ""; | |
3418 | ||
3419 | /* | |
5711c979 KM |
3420 | * check "dai-format = xxx" |
3421 | * or "[prefix]format = xxx" | |
a7930ed4 KM |
3422 | * SND_SOC_DAIFMT_FORMAT_MASK area |
3423 | */ | |
5711c979 KM |
3424 | ret = of_property_read_string(np, "dai-format", &str); |
3425 | if (ret < 0) { | |
3426 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3427 | ret = of_property_read_string(np, prop, &str); | |
3428 | } | |
a7930ed4 KM |
3429 | if (ret == 0) { |
3430 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3431 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3432 | format |= of_fmt_table[i].val; | |
3433 | break; | |
3434 | } | |
3435 | } | |
3436 | } | |
3437 | ||
3438 | /* | |
8c2d6a9f | 3439 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3440 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3441 | */ | |
8c2d6a9f | 3442 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
51930295 | 3443 | if (of_property_read_bool(np, prop)) |
8c2d6a9f KM |
3444 | format |= SND_SOC_DAIFMT_CONT; |
3445 | else | |
3446 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3447 | |
3448 | /* | |
3449 | * check "[prefix]bitclock-inversion" | |
3450 | * check "[prefix]frame-inversion" | |
3451 | * SND_SOC_DAIFMT_INV_MASK area | |
3452 | */ | |
3453 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3454 | bit = !!of_get_property(np, prop, NULL); | |
3455 | ||
3456 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3457 | frame = !!of_get_property(np, prop, NULL); | |
3458 | ||
3459 | switch ((bit << 4) + frame) { | |
3460 | case 0x11: | |
3461 | format |= SND_SOC_DAIFMT_IB_IF; | |
3462 | break; | |
3463 | case 0x10: | |
3464 | format |= SND_SOC_DAIFMT_IB_NF; | |
3465 | break; | |
3466 | case 0x01: | |
3467 | format |= SND_SOC_DAIFMT_NB_IF; | |
3468 | break; | |
3469 | default: | |
3470 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
3471 | break; | |
3472 | } | |
3473 | ||
3474 | /* | |
3475 | * check "[prefix]bitclock-master" | |
3476 | * check "[prefix]frame-master" | |
3477 | * SND_SOC_DAIFMT_MASTER_MASK area | |
3478 | */ | |
3479 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
3480 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3481 | if (bit && bitclkmaster) |
3482 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3483 | |
3484 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
3485 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3486 | if (frame && framemaster) |
3487 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3488 | |
3489 | switch ((bit << 4) + frame) { | |
3490 | case 0x11: | |
3491 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
3492 | break; | |
3493 | case 0x10: | |
3494 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
3495 | break; | |
3496 | case 0x01: | |
3497 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
3498 | break; | |
3499 | default: | |
3500 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
3501 | break; | |
3502 | } | |
3503 | ||
3504 | return format; | |
3505 | } | |
3506 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
3507 | ||
a180e8b9 KM |
3508 | int snd_soc_get_dai_id(struct device_node *ep) |
3509 | { | |
3510 | struct snd_soc_component *pos; | |
3511 | struct device_node *node; | |
3512 | int ret; | |
3513 | ||
3514 | node = of_graph_get_port_parent(ep); | |
3515 | ||
3516 | /* | |
3517 | * For example HDMI case, HDMI has video/sound port, | |
3518 | * but ALSA SoC needs sound port number only. | |
3519 | * Thus counting HDMI DT port/endpoint doesn't work. | |
3520 | * Then, it should have .of_xlate_dai_id | |
3521 | */ | |
3522 | ret = -ENOTSUPP; | |
3523 | mutex_lock(&client_mutex); | |
3524 | list_for_each_entry(pos, &component_list, list) { | |
3525 | struct device_node *component_of_node = pos->dev->of_node; | |
3526 | ||
3527 | if (!component_of_node && pos->dev->parent) | |
3528 | component_of_node = pos->dev->parent->of_node; | |
3529 | ||
3530 | if (component_of_node != node) | |
3531 | continue; | |
3532 | ||
3533 | if (pos->driver->of_xlate_dai_id) | |
3534 | ret = pos->driver->of_xlate_dai_id(pos, ep); | |
3535 | ||
3536 | break; | |
3537 | } | |
3538 | mutex_unlock(&client_mutex); | |
3539 | ||
c0a480d1 TL |
3540 | of_node_put(node); |
3541 | ||
a180e8b9 KM |
3542 | return ret; |
3543 | } | |
3544 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_id); | |
3545 | ||
1ad8ec53 | 3546 | int snd_soc_get_dai_name(struct of_phandle_args *args, |
93b0f3ee | 3547 | const char **dai_name) |
cb470087 KM |
3548 | { |
3549 | struct snd_soc_component *pos; | |
3e0aa8d8 | 3550 | struct device_node *component_of_node; |
93b0f3ee | 3551 | int ret = -EPROBE_DEFER; |
cb470087 KM |
3552 | |
3553 | mutex_lock(&client_mutex); | |
3554 | list_for_each_entry(pos, &component_list, list) { | |
3e0aa8d8 JS |
3555 | component_of_node = pos->dev->of_node; |
3556 | if (!component_of_node && pos->dev->parent) | |
3557 | component_of_node = pos->dev->parent->of_node; | |
3558 | ||
3559 | if (component_of_node != args->np) | |
cb470087 KM |
3560 | continue; |
3561 | ||
6833c452 | 3562 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
3563 | ret = pos->driver->of_xlate_dai_name(pos, |
3564 | args, | |
3565 | dai_name); | |
6833c452 | 3566 | } else { |
58bf4179 | 3567 | struct snd_soc_dai *dai; |
6833c452 KM |
3568 | int id = -1; |
3569 | ||
93b0f3ee | 3570 | switch (args->args_count) { |
6833c452 KM |
3571 | case 0: |
3572 | id = 0; /* same as dai_drv[0] */ | |
3573 | break; | |
3574 | case 1: | |
93b0f3ee | 3575 | id = args->args[0]; |
6833c452 KM |
3576 | break; |
3577 | default: | |
3578 | /* not supported */ | |
3579 | break; | |
3580 | } | |
3581 | ||
3582 | if (id < 0 || id >= pos->num_dai) { | |
3583 | ret = -EINVAL; | |
3dcba280 | 3584 | continue; |
6833c452 | 3585 | } |
e41975ed XL |
3586 | |
3587 | ret = 0; | |
3588 | ||
58bf4179 KM |
3589 | /* find target DAI */ |
3590 | list_for_each_entry(dai, &pos->dai_list, list) { | |
3591 | if (id == 0) | |
3592 | break; | |
3593 | id--; | |
3594 | } | |
3595 | ||
3596 | *dai_name = dai->driver->name; | |
e41975ed XL |
3597 | if (!*dai_name) |
3598 | *dai_name = pos->name; | |
cb470087 KM |
3599 | } |
3600 | ||
cb470087 KM |
3601 | break; |
3602 | } | |
3603 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3604 | return ret; |
3605 | } | |
1ad8ec53 | 3606 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); |
93b0f3ee JFM |
3607 | |
3608 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3609 | const char **dai_name) | |
3610 | { | |
3611 | struct of_phandle_args args; | |
3612 | int ret; | |
3613 | ||
3614 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3615 | "#sound-dai-cells", 0, &args); | |
3616 | if (ret) | |
3617 | return ret; | |
3618 | ||
3619 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3620 | |
3621 | of_node_put(args.np); | |
3622 | ||
3623 | return ret; | |
3624 | } | |
3625 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3626 | ||
94685763 SN |
3627 | /* |
3628 | * snd_soc_of_put_dai_link_codecs - Dereference device nodes in the codecs array | |
3629 | * @dai_link: DAI link | |
3630 | * | |
3631 | * Dereference device nodes acquired by snd_soc_of_get_dai_link_codecs(). | |
3632 | */ | |
3633 | void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link) | |
3634 | { | |
3635 | struct snd_soc_dai_link_component *component = dai_link->codecs; | |
3636 | int index; | |
3637 | ||
3638 | for (index = 0; index < dai_link->num_codecs; index++, component++) { | |
3639 | if (!component->of_node) | |
3640 | break; | |
3641 | of_node_put(component->of_node); | |
3642 | component->of_node = NULL; | |
3643 | } | |
3644 | } | |
3645 | EXPORT_SYMBOL_GPL(snd_soc_of_put_dai_link_codecs); | |
3646 | ||
93b0f3ee JFM |
3647 | /* |
3648 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3649 | * @dev: Card device | |
3650 | * @of_node: Device node | |
3651 | * @dai_link: DAI link | |
3652 | * | |
3653 | * Builds an array of CODEC DAI components from the DAI link property | |
3654 | * 'sound-dai'. | |
3655 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
94685763 SN |
3656 | * The device nodes in the array (of_node) must be dereferenced by calling |
3657 | * snd_soc_of_put_dai_link_codecs() on @dai_link. | |
93b0f3ee JFM |
3658 | * |
3659 | * Returns 0 for success | |
3660 | */ | |
3661 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3662 | struct device_node *of_node, | |
3663 | struct snd_soc_dai_link *dai_link) | |
3664 | { | |
3665 | struct of_phandle_args args; | |
3666 | struct snd_soc_dai_link_component *component; | |
3667 | char *name; | |
3668 | int index, num_codecs, ret; | |
3669 | ||
3670 | /* Count the number of CODECs */ | |
3671 | name = "sound-dai"; | |
3672 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3673 | "#sound-dai-cells"); | |
3674 | if (num_codecs <= 0) { | |
3675 | if (num_codecs == -ENOENT) | |
3676 | dev_err(dev, "No 'sound-dai' property\n"); | |
3677 | else | |
3678 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3679 | return num_codecs; | |
3680 | } | |
3681 | component = devm_kzalloc(dev, | |
3682 | sizeof *component * num_codecs, | |
3683 | GFP_KERNEL); | |
3684 | if (!component) | |
3685 | return -ENOMEM; | |
3686 | dai_link->codecs = component; | |
3687 | dai_link->num_codecs = num_codecs; | |
3688 | ||
3689 | /* Parse the list */ | |
3690 | for (index = 0, component = dai_link->codecs; | |
3691 | index < dai_link->num_codecs; | |
3692 | index++, component++) { | |
3693 | ret = of_parse_phandle_with_args(of_node, name, | |
3694 | "#sound-dai-cells", | |
3695 | index, &args); | |
3696 | if (ret) | |
3697 | goto err; | |
3698 | component->of_node = args.np; | |
3699 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3700 | if (ret < 0) | |
3701 | goto err; | |
3702 | } | |
3703 | return 0; | |
3704 | err: | |
94685763 | 3705 | snd_soc_of_put_dai_link_codecs(dai_link); |
93b0f3ee JFM |
3706 | dai_link->codecs = NULL; |
3707 | dai_link->num_codecs = 0; | |
3708 | return ret; | |
3709 | } | |
3710 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3711 | ||
c9b3a40f | 3712 | static int __init snd_soc_init(void) |
db2a4165 | 3713 | { |
6553bf06 | 3714 | snd_soc_debugfs_init(); |
fb257897 MB |
3715 | snd_soc_util_init(); |
3716 | ||
db2a4165 FM |
3717 | return platform_driver_register(&soc_driver); |
3718 | } | |
4abe8e16 | 3719 | module_init(snd_soc_init); |
db2a4165 | 3720 | |
7d8c16a6 | 3721 | static void __exit snd_soc_exit(void) |
db2a4165 | 3722 | { |
fb257897 | 3723 | snd_soc_util_exit(); |
6553bf06 | 3724 | snd_soc_debugfs_exit(); |
fb257897 | 3725 | |
3ff3f64b | 3726 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3727 | } |
db2a4165 FM |
3728 | module_exit(snd_soc_exit); |
3729 | ||
3730 | /* Module information */ | |
d331124d | 3731 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3732 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3733 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3734 | MODULE_ALIAS("platform:soc-audio"); |