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> |
db2a4165 | 37 | #include <sound/core.h> |
3028eb8c | 38 | #include <sound/jack.h> |
db2a4165 FM |
39 | #include <sound/pcm.h> |
40 | #include <sound/pcm_params.h> | |
41 | #include <sound/soc.h> | |
01d7584c | 42 | #include <sound/soc-dpcm.h> |
db2a4165 FM |
43 | #include <sound/initval.h> |
44 | ||
a8b1d34f MB |
45 | #define CREATE_TRACE_POINTS |
46 | #include <trace/events/asoc.h> | |
47 | ||
f0fba2ad LG |
48 | #define NAME_SIZE 32 |
49 | ||
384c89e2 | 50 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
51 | struct dentry *snd_soc_debugfs_root; |
52 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
53 | #endif |
54 | ||
c5af3a2e | 55 | static DEFINE_MUTEX(client_mutex); |
12a48a8c | 56 | static LIST_HEAD(platform_list); |
0d0cf00a | 57 | static LIST_HEAD(codec_list); |
030e79f6 | 58 | static LIST_HEAD(component_list); |
c5af3a2e | 59 | |
db2a4165 FM |
60 | /* |
61 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
62 | * It can be used to eliminate pops between different playback streams, e.g. | |
63 | * between two audio tracks. | |
64 | */ | |
65 | static int pmdown_time = 5000; | |
66 | module_param(pmdown_time, int, 0); | |
67 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
68 | ||
2bc9a81e DP |
69 | /* returns the minimum number of bytes needed to represent |
70 | * a particular given value */ | |
71 | static int min_bytes_needed(unsigned long val) | |
72 | { | |
73 | int c = 0; | |
74 | int i; | |
75 | ||
76 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
77 | if (val & (1UL << i)) | |
78 | break; | |
79 | c = (sizeof val * 8) - c; | |
80 | if (!c || (c % 8)) | |
81 | c = (c + 8) / 8; | |
82 | else | |
83 | c /= 8; | |
84 | return c; | |
85 | } | |
86 | ||
13fd179f DP |
87 | /* fill buf which is 'len' bytes with a formatted |
88 | * string of the form 'reg: value\n' */ | |
89 | static int format_register_str(struct snd_soc_codec *codec, | |
90 | unsigned int reg, char *buf, size_t len) | |
91 | { | |
00b317a4 SW |
92 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
93 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
94 | int ret; |
95 | char tmpbuf[len + 1]; | |
96 | char regbuf[regsize + 1]; | |
97 | ||
98 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
99 | * try to abuse this function */ | |
100 | WARN_ON(len > 63); | |
101 | ||
102 | /* +2 for ': ' and + 1 for '\n' */ | |
103 | if (wordsize + regsize + 2 + 1 != len) | |
104 | return -EINVAL; | |
105 | ||
25032c11 | 106 | ret = snd_soc_read(codec, reg); |
13fd179f DP |
107 | if (ret < 0) { |
108 | memset(regbuf, 'X', regsize); | |
109 | regbuf[regsize] = '\0'; | |
110 | } else { | |
111 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
112 | } | |
113 | ||
114 | /* prepare the buffer */ | |
115 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
116 | /* copy it back to the caller without the '\0' */ | |
117 | memcpy(buf, tmpbuf, len); | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
2624d5fa | 122 | /* codec register dump */ |
13fd179f DP |
123 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
124 | size_t count, loff_t pos) | |
2624d5fa | 125 | { |
13fd179f | 126 | int i, step = 1; |
2bc9a81e | 127 | int wordsize, regsize; |
13fd179f DP |
128 | int len; |
129 | size_t total = 0; | |
130 | loff_t p = 0; | |
2bc9a81e | 131 | |
00b317a4 SW |
132 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
133 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 134 | |
13fd179f DP |
135 | len = wordsize + regsize + 2 + 1; |
136 | ||
f0fba2ad | 137 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
138 | return 0; |
139 | ||
f0fba2ad LG |
140 | if (codec->driver->reg_cache_step) |
141 | step = codec->driver->reg_cache_step; | |
2624d5fa | 142 | |
f0fba2ad | 143 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
20a0ec27 LPC |
144 | /* only support larger than PAGE_SIZE bytes debugfs |
145 | * entries for the default case */ | |
146 | if (p >= pos) { | |
147 | if (total + len >= count - 1) | |
148 | break; | |
149 | format_register_str(codec, i, buf + total, len); | |
150 | total += len; | |
5164d74d | 151 | } |
20a0ec27 | 152 | p += len; |
2624d5fa MB |
153 | } |
154 | ||
13fd179f | 155 | total = min(total, count - 1); |
2624d5fa | 156 | |
13fd179f | 157 | return total; |
2624d5fa | 158 | } |
13fd179f | 159 | |
2624d5fa MB |
160 | static ssize_t codec_reg_show(struct device *dev, |
161 | struct device_attribute *attr, char *buf) | |
162 | { | |
36ae1a96 | 163 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 164 | |
13fd179f | 165 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
166 | } |
167 | ||
168 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
169 | ||
dbe21408 MB |
170 | static ssize_t pmdown_time_show(struct device *dev, |
171 | struct device_attribute *attr, char *buf) | |
172 | { | |
36ae1a96 | 173 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 174 | |
f0fba2ad | 175 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
176 | } |
177 | ||
178 | static ssize_t pmdown_time_set(struct device *dev, | |
179 | struct device_attribute *attr, | |
180 | const char *buf, size_t count) | |
181 | { | |
36ae1a96 | 182 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 183 | int ret; |
dbe21408 | 184 | |
b785a492 | 185 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
186 | if (ret) |
187 | return ret; | |
dbe21408 MB |
188 | |
189 | return count; | |
190 | } | |
191 | ||
192 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
193 | ||
d29697dc TI |
194 | static struct attribute *soc_dev_attrs[] = { |
195 | &dev_attr_codec_reg.attr, | |
196 | &dev_attr_pmdown_time.attr, | |
197 | NULL | |
198 | }; | |
199 | ||
200 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
201 | struct attribute *attr, int idx) | |
202 | { | |
203 | struct device *dev = kobj_to_dev(kobj); | |
204 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
205 | ||
206 | if (attr == &dev_attr_pmdown_time.attr) | |
207 | return attr->mode; /* always visible */ | |
208 | return rtd->codec ? attr->mode : 0; /* enabled only with codec */ | |
209 | } | |
210 | ||
211 | static const struct attribute_group soc_dapm_dev_group = { | |
212 | .attrs = soc_dapm_dev_attrs, | |
213 | .is_visible = soc_dev_attr_is_visible, | |
214 | }; | |
215 | ||
216 | static const struct attribute_group soc_dev_roup = { | |
217 | .attrs = soc_dev_attrs, | |
218 | .is_visible = soc_dev_attr_is_visible, | |
219 | }; | |
220 | ||
221 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
222 | &soc_dapm_dev_group, | |
223 | &soc_dev_roup, | |
224 | NULL | |
225 | }; | |
226 | ||
2624d5fa | 227 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 228 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 229 | size_t count, loff_t *ppos) |
2624d5fa MB |
230 | { |
231 | ssize_t ret; | |
232 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
233 | char *buf; |
234 | ||
235 | if (*ppos < 0 || !count) | |
236 | return -EINVAL; | |
237 | ||
238 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
239 | if (!buf) |
240 | return -ENOMEM; | |
13fd179f DP |
241 | |
242 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
243 | if (ret >= 0) { | |
244 | if (copy_to_user(user_buf, buf, ret)) { | |
245 | kfree(buf); | |
246 | return -EFAULT; | |
247 | } | |
248 | *ppos += ret; | |
249 | } | |
250 | ||
2624d5fa MB |
251 | kfree(buf); |
252 | return ret; | |
253 | } | |
254 | ||
255 | static ssize_t codec_reg_write_file(struct file *file, | |
256 | const char __user *user_buf, size_t count, loff_t *ppos) | |
257 | { | |
258 | char buf[32]; | |
34e268d8 | 259 | size_t buf_size; |
2624d5fa MB |
260 | char *start = buf; |
261 | unsigned long reg, value; | |
2624d5fa | 262 | struct snd_soc_codec *codec = file->private_data; |
b785a492 | 263 | int ret; |
2624d5fa MB |
264 | |
265 | buf_size = min(count, (sizeof(buf)-1)); | |
266 | if (copy_from_user(buf, user_buf, buf_size)) | |
267 | return -EFAULT; | |
268 | buf[buf_size] = 0; | |
2624d5fa MB |
269 | |
270 | while (*start == ' ') | |
271 | start++; | |
272 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
273 | while (*start == ' ') |
274 | start++; | |
b785a492 JH |
275 | ret = kstrtoul(start, 16, &value); |
276 | if (ret) | |
277 | return ret; | |
0d51a9cb MB |
278 | |
279 | /* Userspace has been fiddling around behind the kernel's back */ | |
373d4d09 | 280 | add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE); |
0d51a9cb | 281 | |
e4f078d8 | 282 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
283 | return buf_size; |
284 | } | |
285 | ||
286 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 287 | .open = simple_open, |
2624d5fa MB |
288 | .read = codec_reg_read_file, |
289 | .write = codec_reg_write_file, | |
6038f373 | 290 | .llseek = default_llseek, |
2624d5fa MB |
291 | }; |
292 | ||
81c7cfd1 | 293 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 294 | { |
81c7cfd1 LPC |
295 | if (component->debugfs_prefix) { |
296 | char *name; | |
e73f3de5 | 297 | |
81c7cfd1 LPC |
298 | name = kasprintf(GFP_KERNEL, "%s:%s", |
299 | component->debugfs_prefix, component->name); | |
300 | if (name) { | |
301 | component->debugfs_root = debugfs_create_dir(name, | |
302 | component->card->debugfs_card_root); | |
303 | kfree(name); | |
304 | } | |
305 | } else { | |
306 | component->debugfs_root = debugfs_create_dir(component->name, | |
307 | component->card->debugfs_card_root); | |
308 | } | |
e73f3de5 | 309 | |
81c7cfd1 LPC |
310 | if (!component->debugfs_root) { |
311 | dev_warn(component->dev, | |
312 | "ASoC: Failed to create component debugfs directory\n"); | |
313 | return; | |
314 | } | |
e73f3de5 | 315 | |
81c7cfd1 LPC |
316 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
317 | component->debugfs_root); | |
e73f3de5 | 318 | |
81c7cfd1 LPC |
319 | if (component->init_debugfs) |
320 | component->init_debugfs(component); | |
e73f3de5 RK |
321 | } |
322 | ||
81c7cfd1 | 323 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 324 | { |
81c7cfd1 LPC |
325 | debugfs_remove_recursive(component->debugfs_root); |
326 | } | |
d6ce4cf3 | 327 | |
81c7cfd1 LPC |
328 | static void soc_init_codec_debugfs(struct snd_soc_component *component) |
329 | { | |
330 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2624d5fa MB |
331 | |
332 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
81c7cfd1 | 333 | codec->component.debugfs_root, |
2624d5fa MB |
334 | codec, &codec_reg_fops); |
335 | if (!codec->debugfs_reg) | |
10e8aa9a MM |
336 | dev_warn(codec->dev, |
337 | "ASoC: Failed to create codec register debugfs file\n"); | |
731f1ab2 SG |
338 | } |
339 | ||
c3c5a19a MB |
340 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
341 | size_t count, loff_t *ppos) | |
342 | { | |
343 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 344 | ssize_t len, ret = 0; |
c3c5a19a MB |
345 | struct snd_soc_codec *codec; |
346 | ||
347 | if (!buf) | |
348 | return -ENOMEM; | |
349 | ||
2b194f9d MB |
350 | list_for_each_entry(codec, &codec_list, list) { |
351 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 352 | codec->component.name); |
2b194f9d MB |
353 | if (len >= 0) |
354 | ret += len; | |
355 | if (ret > PAGE_SIZE) { | |
356 | ret = PAGE_SIZE; | |
357 | break; | |
358 | } | |
359 | } | |
c3c5a19a MB |
360 | |
361 | if (ret >= 0) | |
362 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
363 | ||
364 | kfree(buf); | |
365 | ||
366 | return ret; | |
367 | } | |
368 | ||
369 | static const struct file_operations codec_list_fops = { | |
370 | .read = codec_list_read_file, | |
371 | .llseek = default_llseek,/* read accesses f_pos */ | |
372 | }; | |
373 | ||
f3208780 MB |
374 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
375 | size_t count, loff_t *ppos) | |
376 | { | |
377 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 378 | ssize_t len, ret = 0; |
1438c2f6 | 379 | struct snd_soc_component *component; |
f3208780 MB |
380 | struct snd_soc_dai *dai; |
381 | ||
382 | if (!buf) | |
383 | return -ENOMEM; | |
384 | ||
1438c2f6 LPC |
385 | list_for_each_entry(component, &component_list, list) { |
386 | list_for_each_entry(dai, &component->dai_list, list) { | |
387 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
388 | dai->name); | |
389 | if (len >= 0) | |
390 | ret += len; | |
391 | if (ret > PAGE_SIZE) { | |
392 | ret = PAGE_SIZE; | |
393 | break; | |
394 | } | |
2b194f9d MB |
395 | } |
396 | } | |
f3208780 | 397 | |
2b194f9d | 398 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
399 | |
400 | kfree(buf); | |
401 | ||
402 | return ret; | |
403 | } | |
404 | ||
405 | static const struct file_operations dai_list_fops = { | |
406 | .read = dai_list_read_file, | |
407 | .llseek = default_llseek,/* read accesses f_pos */ | |
408 | }; | |
409 | ||
19c7ac27 MB |
410 | static ssize_t platform_list_read_file(struct file *file, |
411 | char __user *user_buf, | |
412 | size_t count, loff_t *ppos) | |
413 | { | |
414 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 415 | ssize_t len, ret = 0; |
19c7ac27 MB |
416 | struct snd_soc_platform *platform; |
417 | ||
418 | if (!buf) | |
419 | return -ENOMEM; | |
420 | ||
2b194f9d MB |
421 | list_for_each_entry(platform, &platform_list, list) { |
422 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 423 | platform->component.name); |
2b194f9d MB |
424 | if (len >= 0) |
425 | ret += len; | |
426 | if (ret > PAGE_SIZE) { | |
427 | ret = PAGE_SIZE; | |
428 | break; | |
429 | } | |
430 | } | |
19c7ac27 | 431 | |
2b194f9d | 432 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
433 | |
434 | kfree(buf); | |
435 | ||
436 | return ret; | |
437 | } | |
438 | ||
439 | static const struct file_operations platform_list_fops = { | |
440 | .read = platform_list_read_file, | |
441 | .llseek = default_llseek,/* read accesses f_pos */ | |
442 | }; | |
443 | ||
a6052154 JN |
444 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
445 | { | |
446 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 447 | snd_soc_debugfs_root); |
3a45b867 | 448 | if (!card->debugfs_card_root) { |
a6052154 | 449 | dev_warn(card->dev, |
7c08be84 | 450 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
451 | return; |
452 | } | |
453 | ||
454 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
455 | card->debugfs_card_root, | |
456 | &card->pop_time); | |
457 | if (!card->debugfs_pop_time) | |
458 | dev_warn(card->dev, | |
f110bfc7 | 459 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
460 | } |
461 | ||
462 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
463 | { | |
464 | debugfs_remove_recursive(card->debugfs_card_root); | |
465 | } | |
466 | ||
2624d5fa MB |
467 | #else |
468 | ||
81c7cfd1 | 469 | #define soc_init_codec_debugfs NULL |
b95fccbc | 470 | |
81c7cfd1 LPC |
471 | static inline void soc_init_component_debugfs( |
472 | struct snd_soc_component *component) | |
731f1ab2 SG |
473 | { |
474 | } | |
475 | ||
81c7cfd1 LPC |
476 | static inline void soc_cleanup_component_debugfs( |
477 | struct snd_soc_component *component) | |
731f1ab2 SG |
478 | { |
479 | } | |
480 | ||
b95fccbc AL |
481 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
482 | { | |
483 | } | |
484 | ||
485 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
486 | { | |
487 | } | |
2624d5fa MB |
488 | #endif |
489 | ||
47c88fff LG |
490 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
491 | const char *dai_link, int stream) | |
492 | { | |
493 | int i; | |
494 | ||
495 | for (i = 0; i < card->num_links; i++) { | |
496 | if (card->rtd[i].dai_link->no_pcm && | |
497 | !strcmp(card->rtd[i].dai_link->name, dai_link)) | |
498 | return card->rtd[i].pcm->streams[stream].substream; | |
499 | } | |
f110bfc7 | 500 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
501 | return NULL; |
502 | } | |
503 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
504 | ||
505 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, | |
506 | const char *dai_link) | |
507 | { | |
508 | int i; | |
509 | ||
510 | for (i = 0; i < card->num_links; i++) { | |
511 | if (!strcmp(card->rtd[i].dai_link->name, dai_link)) | |
512 | return &card->rtd[i]; | |
513 | } | |
f110bfc7 | 514 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
515 | return NULL; |
516 | } | |
517 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
518 | ||
9d58a077 RF |
519 | static void codec2codec_close_delayed_work(struct work_struct *work) |
520 | { | |
521 | /* Currently nothing to do for c2c links | |
522 | * Since c2c links are internal nodes in the DAPM graph and | |
523 | * don't interface with the outside world or application layer | |
524 | * we don't have to do any special handling on close. | |
525 | */ | |
526 | } | |
527 | ||
6f8ab4ac | 528 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 529 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 530 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 531 | { |
6f8ab4ac | 532 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 533 | struct snd_soc_codec *codec; |
88bd870f | 534 | int i, j; |
db2a4165 | 535 | |
c5599b87 LPC |
536 | /* If the card is not initialized yet there is nothing to do */ |
537 | if (!card->instantiated) | |
e3509ff0 DM |
538 | return 0; |
539 | ||
6ed25978 AG |
540 | /* Due to the resume being scheduled into a workqueue we could |
541 | * suspend before that's finished - wait for it to complete. | |
542 | */ | |
f0fba2ad LG |
543 | snd_power_lock(card->snd_card); |
544 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
545 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
546 | |
547 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 548 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 549 | |
a00f90f9 | 550 | /* mute any active DACs */ |
f0fba2ad | 551 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 552 | |
f0fba2ad | 553 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
554 | continue; |
555 | ||
88bd870f BC |
556 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
557 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
558 | struct snd_soc_dai_driver *drv = dai->driver; | |
559 | ||
560 | if (drv->ops->digital_mute && dai->playback_active) | |
561 | drv->ops->digital_mute(dai, 1); | |
562 | } | |
db2a4165 FM |
563 | } |
564 | ||
4ccab3e7 | 565 | /* suspend all pcms */ |
f0fba2ad LG |
566 | for (i = 0; i < card->num_rtd; i++) { |
567 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
568 | continue; |
569 | ||
f0fba2ad | 570 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 571 | } |
4ccab3e7 | 572 | |
87506549 | 573 | if (card->suspend_pre) |
70b2ac12 | 574 | card->suspend_pre(card); |
db2a4165 | 575 | |
f0fba2ad LG |
576 | for (i = 0; i < card->num_rtd; i++) { |
577 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 578 | |
f0fba2ad | 579 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
580 | continue; |
581 | ||
bc263214 | 582 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 583 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
584 | } |
585 | ||
586 | /* close any waiting streams and save state */ | |
f0fba2ad | 587 | for (i = 0; i < card->num_rtd; i++) { |
88bd870f | 588 | struct snd_soc_dai **codec_dais = card->rtd[i].codec_dais; |
43829731 | 589 | flush_delayed_work(&card->rtd[i].delayed_work); |
88bd870f BC |
590 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
591 | codec_dais[j]->codec->dapm.suspend_bias_level = | |
592 | codec_dais[j]->codec->dapm.bias_level; | |
593 | } | |
f0fba2ad | 594 | } |
db2a4165 | 595 | |
f0fba2ad | 596 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 597 | |
f0fba2ad | 598 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
599 | continue; |
600 | ||
7bd3a6f3 MB |
601 | snd_soc_dapm_stream_event(&card->rtd[i], |
602 | SNDRV_PCM_STREAM_PLAYBACK, | |
7bd3a6f3 | 603 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 604 | |
7bd3a6f3 MB |
605 | snd_soc_dapm_stream_event(&card->rtd[i], |
606 | SNDRV_PCM_STREAM_CAPTURE, | |
7bd3a6f3 | 607 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
608 | } |
609 | ||
8be4da29 LPC |
610 | /* Recheck all endpoints too, their state is affected by suspend */ |
611 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
612 | snd_soc_dapm_sync(&card->dapm); |
613 | ||
f0fba2ad | 614 | /* suspend all CODECs */ |
2eea392d | 615 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
616 | /* If there are paths active then the CODEC will be held with |
617 | * bias _ON and should not be suspended. */ | |
a8093297 | 618 | if (!codec->suspended) { |
ce6120cc | 619 | switch (codec->dapm.bias_level) { |
f0fba2ad | 620 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
621 | /* |
622 | * If the CODEC is capable of idle | |
623 | * bias off then being in STANDBY | |
624 | * means it's doing something, | |
625 | * otherwise fall through. | |
626 | */ | |
627 | if (codec->dapm.idle_bias_off) { | |
628 | dev_dbg(codec->dev, | |
10e8aa9a | 629 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
630 | break; |
631 | } | |
a8093297 | 632 | |
f0fba2ad | 633 | case SND_SOC_BIAS_OFF: |
a8093297 LPC |
634 | if (codec->driver->suspend) |
635 | codec->driver->suspend(codec); | |
f0fba2ad | 636 | codec->suspended = 1; |
e2c330b9 LPC |
637 | if (codec->component.regmap) |
638 | regcache_mark_dirty(codec->component.regmap); | |
988e8cc4 NC |
639 | /* deactivate pins to sleep state */ |
640 | pinctrl_pm_select_sleep_state(codec->dev); | |
f0fba2ad LG |
641 | break; |
642 | default: | |
10e8aa9a MM |
643 | dev_dbg(codec->dev, |
644 | "ASoC: CODEC is on over suspend\n"); | |
f0fba2ad LG |
645 | break; |
646 | } | |
1547aba9 MB |
647 | } |
648 | } | |
db2a4165 | 649 | |
f0fba2ad LG |
650 | for (i = 0; i < card->num_rtd; i++) { |
651 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 652 | |
f0fba2ad | 653 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
654 | continue; |
655 | ||
bc263214 | 656 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 657 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
658 | |
659 | /* deactivate pins to sleep state */ | |
660 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
661 | } |
662 | ||
87506549 | 663 | if (card->suspend_post) |
70b2ac12 | 664 | card->suspend_post(card); |
db2a4165 FM |
665 | |
666 | return 0; | |
667 | } | |
6f8ab4ac | 668 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 669 | |
6ed25978 AG |
670 | /* deferred resume work, so resume can complete before we finished |
671 | * setting our codec back up, which can be very slow on I2C | |
672 | */ | |
673 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 674 | { |
f0fba2ad LG |
675 | struct snd_soc_card *card = |
676 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 677 | struct snd_soc_codec *codec; |
88bd870f | 678 | int i, j; |
db2a4165 | 679 | |
6ed25978 AG |
680 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
681 | * so userspace apps are blocked from touching us | |
682 | */ | |
683 | ||
f110bfc7 | 684 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 685 | |
9949788b | 686 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 687 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 688 | |
87506549 | 689 | if (card->resume_pre) |
70b2ac12 | 690 | card->resume_pre(card); |
db2a4165 | 691 | |
bc263214 | 692 | /* resume control bus DAIs */ |
f0fba2ad LG |
693 | for (i = 0; i < card->num_rtd; i++) { |
694 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 695 | |
f0fba2ad | 696 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
697 | continue; |
698 | ||
bc263214 | 699 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
700 | cpu_dai->driver->resume(cpu_dai); |
701 | } | |
702 | ||
2eea392d | 703 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
704 | /* If the CODEC was idle over suspend then it will have been |
705 | * left with bias OFF or STANDBY and suspended so we must now | |
706 | * resume. Otherwise the suspend was suppressed. | |
707 | */ | |
a8093297 | 708 | if (codec->suspended) { |
ce6120cc | 709 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
710 | case SND_SOC_BIAS_STANDBY: |
711 | case SND_SOC_BIAS_OFF: | |
a8093297 LPC |
712 | if (codec->driver->resume) |
713 | codec->driver->resume(codec); | |
f0fba2ad LG |
714 | codec->suspended = 0; |
715 | break; | |
716 | default: | |
10e8aa9a MM |
717 | dev_dbg(codec->dev, |
718 | "ASoC: CODEC was on over suspend\n"); | |
f0fba2ad LG |
719 | break; |
720 | } | |
1547aba9 MB |
721 | } |
722 | } | |
db2a4165 | 723 | |
f0fba2ad | 724 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 725 | |
f0fba2ad | 726 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
727 | continue; |
728 | ||
7bd3a6f3 | 729 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 730 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 731 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 732 | |
7bd3a6f3 | 733 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 734 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 735 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
736 | } |
737 | ||
3ff3f64b | 738 | /* unmute any active DACs */ |
f0fba2ad | 739 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 740 | |
f0fba2ad | 741 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
742 | continue; |
743 | ||
88bd870f BC |
744 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
745 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
746 | struct snd_soc_dai_driver *drv = dai->driver; | |
747 | ||
748 | if (drv->ops->digital_mute && dai->playback_active) | |
749 | drv->ops->digital_mute(dai, 0); | |
750 | } | |
db2a4165 FM |
751 | } |
752 | ||
f0fba2ad LG |
753 | for (i = 0; i < card->num_rtd; i++) { |
754 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 755 | |
f0fba2ad | 756 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
757 | continue; |
758 | ||
bc263214 | 759 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 760 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
761 | } |
762 | ||
87506549 | 763 | if (card->resume_post) |
70b2ac12 | 764 | card->resume_post(card); |
db2a4165 | 765 | |
f110bfc7 | 766 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 AG |
767 | |
768 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 769 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
e2d32ff6 | 770 | |
8be4da29 LPC |
771 | /* Recheck all endpoints too, their state is affected by suspend */ |
772 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 773 | snd_soc_dapm_sync(&card->dapm); |
6ed25978 AG |
774 | } |
775 | ||
776 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 777 | int snd_soc_resume(struct device *dev) |
6ed25978 | 778 | { |
6f8ab4ac | 779 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 LPC |
780 | bool bus_control = false; |
781 | int i; | |
b9dd94a8 | 782 | |
c5599b87 LPC |
783 | /* If the card is not initialized yet there is nothing to do */ |
784 | if (!card->instantiated) | |
5ff1ddf2 EM |
785 | return 0; |
786 | ||
988e8cc4 NC |
787 | /* activate pins from sleep state */ |
788 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
789 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
790 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
791 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
792 | int j; | |
793 | ||
988e8cc4 NC |
794 | if (cpu_dai->active) |
795 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
796 | |
797 | for (j = 0; j < rtd->num_codecs; j++) { | |
798 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
799 | if (codec_dai->active) | |
800 | pinctrl_pm_select_default_state(codec_dai->dev); | |
801 | } | |
988e8cc4 NC |
802 | } |
803 | ||
bc263214 LPC |
804 | /* |
805 | * DAIs that also act as the control bus master might have other drivers | |
806 | * hanging off them so need to resume immediately. Other drivers don't | |
807 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
808 | * due to I/O costs and anti-pop so handle them out of line. |
809 | */ | |
f0fba2ad LG |
810 | for (i = 0; i < card->num_rtd; i++) { |
811 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
bc263214 | 812 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 813 | } |
bc263214 LPC |
814 | if (bus_control) { |
815 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
816 | soc_resume_deferred(&card->deferred_resume_work); |
817 | } else { | |
f110bfc7 | 818 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 819 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 820 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 821 | } |
6ed25978 | 822 | |
db2a4165 FM |
823 | return 0; |
824 | } | |
6f8ab4ac | 825 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 826 | #else |
6f8ab4ac MB |
827 | #define snd_soc_suspend NULL |
828 | #define snd_soc_resume NULL | |
db2a4165 FM |
829 | #endif |
830 | ||
85e7652d | 831 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
832 | }; |
833 | ||
65d9361f LPC |
834 | static struct snd_soc_component *soc_find_component( |
835 | const struct device_node *of_node, const char *name) | |
12023a9a | 836 | { |
65d9361f | 837 | struct snd_soc_component *component; |
12023a9a | 838 | |
65d9361f LPC |
839 | list_for_each_entry(component, &component_list, list) { |
840 | if (of_node) { | |
841 | if (component->dev->of_node == of_node) | |
842 | return component; | |
843 | } else if (strcmp(component->name, name) == 0) { | |
844 | return component; | |
12023a9a | 845 | } |
12023a9a MLC |
846 | } |
847 | ||
848 | return NULL; | |
849 | } | |
850 | ||
14621c7e LPC |
851 | static struct snd_soc_dai *snd_soc_find_dai( |
852 | const struct snd_soc_dai_link_component *dlc) | |
12023a9a | 853 | { |
14621c7e LPC |
854 | struct snd_soc_component *component; |
855 | struct snd_soc_dai *dai; | |
12023a9a | 856 | |
14621c7e LPC |
857 | /* Find CPU DAI from registered DAIs*/ |
858 | list_for_each_entry(component, &component_list, list) { | |
859 | if (dlc->of_node && component->dev->of_node != dlc->of_node) | |
860 | continue; | |
1ffae361 | 861 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
862 | continue; |
863 | list_for_each_entry(dai, &component->dai_list, list) { | |
864 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 865 | continue; |
12023a9a | 866 | |
14621c7e | 867 | return dai; |
12023a9a MLC |
868 | } |
869 | } | |
870 | ||
871 | return NULL; | |
872 | } | |
873 | ||
f0fba2ad | 874 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 875 | { |
f0fba2ad LG |
876 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
877 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
88bd870f | 878 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 879 | struct snd_soc_dai_link_component cpu_dai_component; |
88bd870f | 880 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
435c5e25 | 881 | struct snd_soc_platform *platform; |
848dd8be | 882 | const char *platform_name; |
88bd870f | 883 | int i; |
435c5e25 | 884 | |
f110bfc7 | 885 | dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); |
435c5e25 | 886 | |
14621c7e LPC |
887 | cpu_dai_component.name = dai_link->cpu_name; |
888 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
889 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
890 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 891 | if (!rtd->cpu_dai) { |
f110bfc7 | 892 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b MB |
893 | dai_link->cpu_dai_name); |
894 | return -EPROBE_DEFER; | |
f0fba2ad LG |
895 | } |
896 | ||
88bd870f | 897 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 898 | |
88bd870f BC |
899 | /* Find CODEC from registered CODECs */ |
900 | for (i = 0; i < rtd->num_codecs; i++) { | |
14621c7e | 901 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
902 | if (!codec_dais[i]) { |
903 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
904 | codecs[i].dai_name); | |
905 | return -EPROBE_DEFER; | |
906 | } | |
12023a9a MLC |
907 | } |
908 | ||
88bd870f BC |
909 | /* Single codec links expect codec and codec_dai in runtime data */ |
910 | rtd->codec_dai = codec_dais[0]; | |
911 | rtd->codec = rtd->codec_dai->codec; | |
912 | ||
848dd8be MB |
913 | /* if there's no platform we match on the empty platform */ |
914 | platform_name = dai_link->platform_name; | |
5a504963 | 915 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
916 | platform_name = "snd-soc-dummy"; |
917 | ||
b19e6e7b | 918 | /* find one from the set of registered platforms */ |
f0fba2ad | 919 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
920 | if (dai_link->platform_of_node) { |
921 | if (platform->dev->of_node != | |
922 | dai_link->platform_of_node) | |
923 | continue; | |
924 | } else { | |
f4333203 | 925 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
926 | continue; |
927 | } | |
2610ab77 SW |
928 | |
929 | rtd->platform = platform; | |
02a06d30 | 930 | } |
b19e6e7b | 931 | if (!rtd->platform) { |
f110bfc7 | 932 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 933 | dai_link->platform_name); |
b19e6e7b | 934 | return -EPROBE_DEFER; |
f0fba2ad | 935 | } |
b19e6e7b MB |
936 | |
937 | card->num_rtd++; | |
938 | ||
939 | return 0; | |
f0fba2ad LG |
940 | } |
941 | ||
f1d45cc3 | 942 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 943 | { |
70090bbb LPC |
944 | if (!component->probed) |
945 | return; | |
d12cd198 | 946 | |
f1d45cc3 LPC |
947 | /* This is a HACK and will be removed soon */ |
948 | if (component->codec) | |
949 | list_del(&component->codec->card_list); | |
589c3563 | 950 | |
f1d45cc3 LPC |
951 | if (component->remove) |
952 | component->remove(component); | |
589c3563 | 953 | |
f1d45cc3 | 954 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 955 | |
f1d45cc3 LPC |
956 | soc_cleanup_component_debugfs(component); |
957 | component->probed = 0; | |
958 | module_put(component->dev->driver->owner); | |
589c3563 JN |
959 | } |
960 | ||
e60cd14f | 961 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 962 | { |
f0fba2ad LG |
963 | int err; |
964 | ||
e60cd14f LPC |
965 | if (dai && dai->probed && |
966 | dai->driver->remove_order == order) { | |
967 | if (dai->driver->remove) { | |
968 | err = dai->driver->remove(dai); | |
f0fba2ad | 969 | if (err < 0) |
e60cd14f | 970 | dev_err(dai->dev, |
f110bfc7 | 971 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 972 | dai->name, err); |
6b05eda6 | 973 | } |
e60cd14f | 974 | dai->probed = 0; |
f0fba2ad | 975 | } |
b0aa88af MLC |
976 | } |
977 | ||
978 | static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) | |
979 | { | |
980 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
e60cd14f | 981 | int i; |
b0aa88af MLC |
982 | |
983 | /* unregister the rtd device */ | |
984 | if (rtd->dev_registered) { | |
b0aa88af MLC |
985 | device_unregister(rtd->dev); |
986 | rtd->dev_registered = 0; | |
987 | } | |
988 | ||
989 | /* remove the CODEC DAI */ | |
88bd870f | 990 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 991 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 992 | |
e60cd14f | 993 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 994 | } |
db2a4165 | 995 | |
62ae68fa SW |
996 | static void soc_remove_link_components(struct snd_soc_card *card, int num, |
997 | int order) | |
998 | { | |
999 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1000 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
62ae68fa | 1001 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1002 | struct snd_soc_component *component; |
88bd870f | 1003 | int i; |
62ae68fa SW |
1004 | |
1005 | /* remove the platform */ | |
70090bbb | 1006 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1007 | soc_remove_component(&platform->component); |
62ae68fa SW |
1008 | |
1009 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1010 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1011 | component = rtd->codec_dais[i]->component; |
70090bbb | 1012 | if (component->driver->remove_order == order) |
61aca564 | 1013 | soc_remove_component(component); |
62ae68fa SW |
1014 | } |
1015 | ||
1016 | /* remove any CPU-side CODEC */ | |
1017 | if (cpu_dai) { | |
70090bbb | 1018 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1019 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1020 | } |
1021 | } | |
1022 | ||
0671fd8e KM |
1023 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1024 | { | |
0168bf0d | 1025 | int dai, order; |
0671fd8e | 1026 | |
0168bf0d LG |
1027 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1028 | order++) { | |
1029 | for (dai = 0; dai < card->num_rtd; dai++) | |
62ae68fa SW |
1030 | soc_remove_link_dais(card, dai, order); |
1031 | } | |
1032 | ||
1033 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1034 | order++) { | |
1035 | for (dai = 0; dai < card->num_rtd; dai++) | |
1036 | soc_remove_link_components(card, dai, order); | |
0168bf0d | 1037 | } |
62ae68fa | 1038 | |
0671fd8e KM |
1039 | card->num_rtd = 0; |
1040 | } | |
1041 | ||
ead9b919 | 1042 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1043 | struct snd_soc_component *component) |
ead9b919 JN |
1044 | { |
1045 | int i; | |
1046 | ||
ff819b83 | 1047 | if (card->codec_conf == NULL) |
ead9b919 JN |
1048 | return; |
1049 | ||
ff819b83 DP |
1050 | for (i = 0; i < card->num_configs; i++) { |
1051 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1052 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1053 | continue; |
94f99c87 | 1054 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1055 | continue; |
94f99c87 | 1056 | component->name_prefix = map->name_prefix; |
3ca041ed | 1057 | break; |
ead9b919 JN |
1058 | } |
1059 | } | |
1060 | ||
f1d45cc3 LPC |
1061 | static int soc_probe_component(struct snd_soc_card *card, |
1062 | struct snd_soc_component *component) | |
589c3563 | 1063 | { |
f1d45cc3 | 1064 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1065 | struct snd_soc_dai *dai; |
f1d45cc3 | 1066 | int ret; |
589c3563 | 1067 | |
70090bbb LPC |
1068 | if (component->probed) |
1069 | return 0; | |
589c3563 | 1070 | |
f1d45cc3 LPC |
1071 | component->card = card; |
1072 | dapm->card = card; | |
1073 | soc_set_name_prefix(card, component); | |
589c3563 | 1074 | |
f1d45cc3 | 1075 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1076 | return -ENODEV; |
1077 | ||
f1d45cc3 | 1078 | soc_init_component_debugfs(component); |
d5d1e0be | 1079 | |
f1d45cc3 LPC |
1080 | if (component->dapm_widgets) { |
1081 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1082 | component->num_dapm_widgets); | |
b318ad50 NP |
1083 | |
1084 | if (ret != 0) { | |
f1d45cc3 | 1085 | dev_err(component->dev, |
b318ad50 NP |
1086 | "Failed to create new controls %d\n", ret); |
1087 | goto err_probe; | |
1088 | } | |
1089 | } | |
77530150 | 1090 | |
0634814f LPC |
1091 | list_for_each_entry(dai, &component->dai_list, list) { |
1092 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1093 | if (ret != 0) { |
0634814f | 1094 | dev_err(component->dev, |
261edc70 NP |
1095 | "Failed to create DAI widgets %d\n", ret); |
1096 | goto err_probe; | |
1097 | } | |
1098 | } | |
888df395 | 1099 | |
f1d45cc3 LPC |
1100 | if (component->probe) { |
1101 | ret = component->probe(component); | |
589c3563 | 1102 | if (ret < 0) { |
f1d45cc3 LPC |
1103 | dev_err(component->dev, |
1104 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1105 | goto err_probe; |
589c3563 | 1106 | } |
cb2cf612 | 1107 | |
f1d45cc3 LPC |
1108 | WARN(dapm->idle_bias_off && |
1109 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1110 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1111 | component->name); | |
be09ad90 LG |
1112 | } |
1113 | ||
f1d45cc3 LPC |
1114 | if (component->controls) |
1115 | snd_soc_add_component_controls(component, component->controls, | |
1116 | component->num_controls); | |
1117 | if (component->dapm_routes) | |
1118 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1119 | component->num_dapm_routes); | |
3fec6b6d | 1120 | |
f1d45cc3 LPC |
1121 | component->probed = 1; |
1122 | list_add(&dapm->list, &card->dapm_list); | |
cb2cf612 | 1123 | |
f1d45cc3 LPC |
1124 | /* This is a HACK and will be removed soon */ |
1125 | if (component->codec) | |
1126 | list_add(&component->codec->card_list, &card->codec_dev_list); | |
956245e9 LG |
1127 | |
1128 | return 0; | |
1129 | ||
1130 | err_probe: | |
f1d45cc3 LPC |
1131 | soc_cleanup_component_debugfs(component); |
1132 | module_put(component->dev->driver->owner); | |
956245e9 LG |
1133 | |
1134 | return ret; | |
1135 | } | |
1136 | ||
36ae1a96 MB |
1137 | static void rtd_release(struct device *dev) |
1138 | { | |
1139 | kfree(dev); | |
1140 | } | |
f0fba2ad | 1141 | |
5f3484ac LPC |
1142 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1143 | const char *name) | |
503ae5e0 | 1144 | { |
589c3563 JN |
1145 | int ret = 0; |
1146 | ||
589c3563 | 1147 | /* register the rtd device */ |
36ae1a96 MB |
1148 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1149 | if (!rtd->dev) | |
1150 | return -ENOMEM; | |
1151 | device_initialize(rtd->dev); | |
5f3484ac | 1152 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1153 | rtd->dev->release = rtd_release; |
d29697dc | 1154 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1155 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1156 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1157 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1158 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1159 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1160 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1161 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1162 | ret = device_add(rtd->dev); |
589c3563 | 1163 | if (ret < 0) { |
865df9cb CL |
1164 | /* calling put_device() here to free the rtd->dev */ |
1165 | put_device(rtd->dev); | |
5f3484ac | 1166 | dev_err(rtd->card->dev, |
f110bfc7 | 1167 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1168 | return ret; |
1169 | } | |
1170 | rtd->dev_registered = 1; | |
589c3563 JN |
1171 | return 0; |
1172 | } | |
1173 | ||
62ae68fa SW |
1174 | static int soc_probe_link_components(struct snd_soc_card *card, int num, |
1175 | int order) | |
1176 | { | |
1177 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
62ae68fa | 1178 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1179 | struct snd_soc_component *component; |
88bd870f | 1180 | int i, ret; |
62ae68fa SW |
1181 | |
1182 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1183 | component = rtd->cpu_dai->component; |
70090bbb | 1184 | if (component->driver->probe_order == order) { |
61aca564 | 1185 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1186 | if (ret < 0) |
1187 | return ret; | |
1188 | } | |
1189 | ||
88bd870f BC |
1190 | /* probe the CODEC-side components */ |
1191 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1192 | component = rtd->codec_dais[i]->component; |
70090bbb | 1193 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1194 | ret = soc_probe_component(card, component); |
88bd870f BC |
1195 | if (ret < 0) |
1196 | return ret; | |
1197 | } | |
62ae68fa SW |
1198 | } |
1199 | ||
1200 | /* probe the platform */ | |
70090bbb | 1201 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1202 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1203 | if (ret < 0) |
1204 | return ret; | |
1205 | } | |
1206 | ||
1207 | return 0; | |
1208 | } | |
1209 | ||
8e2be562 | 1210 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1211 | { |
1212 | int ret; | |
1213 | ||
8e2be562 LPC |
1214 | if (!dai->probed && dai->driver->probe_order == order) { |
1215 | if (dai->driver->probe) { | |
1216 | ret = dai->driver->probe(dai); | |
b0aa88af | 1217 | if (ret < 0) { |
8e2be562 LPC |
1218 | dev_err(dai->dev, |
1219 | "ASoC: failed to probe DAI %s: %d\n", | |
1220 | dai->name, ret); | |
b0aa88af MLC |
1221 | return ret; |
1222 | } | |
1223 | } | |
1224 | ||
8e2be562 | 1225 | dai->probed = 1; |
b0aa88af MLC |
1226 | } |
1227 | ||
1228 | return 0; | |
1229 | } | |
1230 | ||
2436a723 MLC |
1231 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1232 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1233 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1234 | { |
3f901a02 BC |
1235 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1236 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2436a723 MLC |
1237 | struct snd_soc_dapm_widget *play_w, *capture_w; |
1238 | int ret; | |
1239 | ||
88bd870f BC |
1240 | if (rtd->num_codecs > 1) |
1241 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1242 | ||
2436a723 MLC |
1243 | /* link the DAI widgets */ |
1244 | play_w = codec_dai->playback_widget; | |
1245 | capture_w = cpu_dai->capture_widget; | |
1246 | if (play_w && capture_w) { | |
1247 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
1248 | capture_w, play_w); | |
1249 | if (ret != 0) { | |
1250 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1251 | play_w->name, capture_w->name, ret); | |
1252 | return ret; | |
1253 | } | |
1254 | } | |
1255 | ||
1256 | play_w = cpu_dai->playback_widget; | |
1257 | capture_w = codec_dai->capture_widget; | |
1258 | if (play_w && capture_w) { | |
1259 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
1260 | capture_w, play_w); | |
1261 | if (ret != 0) { | |
1262 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1263 | play_w->name, capture_w->name, ret); | |
1264 | return ret; | |
1265 | } | |
1266 | } | |
1267 | ||
1268 | return 0; | |
1269 | } | |
1270 | ||
62ae68fa | 1271 | static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1272 | { |
1273 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1274 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
c74184ed | 1275 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1276 | int i, ret; |
f0fba2ad | 1277 | |
f110bfc7 | 1278 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
0168bf0d | 1279 | card->name, num, order); |
f0fba2ad | 1280 | |
f0fba2ad LG |
1281 | /* set default power off timeout */ |
1282 | rtd->pmdown_time = pmdown_time; | |
1283 | ||
8e2be562 LPC |
1284 | ret = soc_probe_dai(cpu_dai, order); |
1285 | if (ret) | |
1286 | return ret; | |
db2a4165 | 1287 | |
f0fba2ad | 1288 | /* probe the CODEC DAI */ |
88bd870f | 1289 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1290 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1291 | if (ret) |
1292 | return ret; | |
1293 | } | |
fe3e78e0 | 1294 | |
0168bf0d LG |
1295 | /* complete DAI probe during last probe */ |
1296 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1297 | return 0; | |
1298 | ||
5f3484ac LPC |
1299 | /* do machine specific initialization */ |
1300 | if (dai_link->init) { | |
1301 | ret = dai_link->init(rtd); | |
1302 | if (ret < 0) { | |
1303 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1304 | dai_link->name, ret); | |
1305 | return ret; | |
1306 | } | |
1307 | } | |
1308 | ||
1309 | ret = soc_post_component_init(rtd, dai_link->name); | |
589c3563 | 1310 | if (ret) |
f0fba2ad | 1311 | return ret; |
fe3e78e0 | 1312 | |
5f3484ac LPC |
1313 | #ifdef CONFIG_DEBUG_FS |
1314 | /* add DPCM sysfs entries */ | |
1315 | if (dai_link->dynamic) { | |
1316 | ret = soc_dpcm_debugfs_add(rtd); | |
1317 | if (ret < 0) { | |
1318 | dev_err(rtd->dev, | |
1319 | "ASoC: failed to add dpcm sysfs entries: %d\n", | |
1320 | ret); | |
1321 | return ret; | |
1322 | } | |
1323 | } | |
1324 | #endif | |
1325 | ||
1245b700 NK |
1326 | if (cpu_dai->driver->compress_dai) { |
1327 | /*create compress_device"*/ | |
1328 | ret = soc_new_compress(rtd, num); | |
c74184ed | 1329 | if (ret < 0) { |
f110bfc7 | 1330 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1331 | dai_link->stream_name); |
c74184ed MB |
1332 | return ret; |
1333 | } | |
1334 | } else { | |
1245b700 NK |
1335 | |
1336 | if (!dai_link->params) { | |
1337 | /* create the pcm */ | |
1338 | ret = soc_new_pcm(rtd, num); | |
1339 | if (ret < 0) { | |
f110bfc7 | 1340 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1341 | dai_link->stream_name, ret); |
c74184ed MB |
1342 | return ret; |
1343 | } | |
1245b700 | 1344 | } else { |
9d58a077 RF |
1345 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1346 | codec2codec_close_delayed_work); | |
1347 | ||
1245b700 | 1348 | /* link the DAI widgets */ |
3f901a02 | 1349 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1350 | if (ret) |
1351 | return ret; | |
c74184ed | 1352 | } |
f0fba2ad LG |
1353 | } |
1354 | ||
f0fba2ad LG |
1355 | return 0; |
1356 | } | |
1357 | ||
44c69bb1 | 1358 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed | 1359 | { |
44c69bb1 | 1360 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
3ca041ed | 1361 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
65d9361f | 1362 | const char *name = aux_dev->codec_name; |
3ca041ed | 1363 | |
65d9361f LPC |
1364 | rtd->component = soc_find_component(aux_dev->codec_of_node, name); |
1365 | if (!rtd->component) { | |
3ca041ed | 1366 | if (aux_dev->codec_of_node) |
65d9361f | 1367 | name = of_node_full_name(aux_dev->codec_of_node); |
3ca041ed | 1368 | |
65d9361f | 1369 | dev_err(card->dev, "ASoC: %s not registered\n", name); |
3ca041ed SR |
1370 | return -EPROBE_DEFER; |
1371 | } | |
fb099cb7 | 1372 | |
65d9361f LPC |
1373 | /* |
1374 | * Some places still reference rtd->codec, so we have to keep that | |
1375 | * initialized if the component is a CODEC. Once all those references | |
1376 | * have been removed, this code can be removed as well. | |
1377 | */ | |
1378 | rtd->codec = rtd->component->codec; | |
1379 | ||
44c69bb1 | 1380 | return 0; |
b19e6e7b MB |
1381 | } |
1382 | ||
2eea392d JN |
1383 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1384 | { | |
44c69bb1 | 1385 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
2eea392d | 1386 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
44c69bb1 | 1387 | int ret; |
3ca041ed | 1388 | |
65d9361f | 1389 | ret = soc_probe_component(card, rtd->component); |
2eea392d | 1390 | if (ret < 0) |
589c3563 | 1391 | return ret; |
2eea392d | 1392 | |
5f3484ac LPC |
1393 | /* do machine specific initialization */ |
1394 | if (aux_dev->init) { | |
57bf7726 | 1395 | ret = aux_dev->init(rtd->component); |
5f3484ac LPC |
1396 | if (ret < 0) { |
1397 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1398 | aux_dev->name, ret); | |
1399 | return ret; | |
1400 | } | |
1401 | } | |
2eea392d | 1402 | |
5f3484ac | 1403 | return soc_post_component_init(rtd, aux_dev->name); |
2eea392d JN |
1404 | } |
1405 | ||
1406 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1407 | { | |
1408 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
65d9361f | 1409 | struct snd_soc_component *component = rtd->component; |
2eea392d JN |
1410 | |
1411 | /* unregister the rtd device */ | |
1412 | if (rtd->dev_registered) { | |
36ae1a96 | 1413 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
d3bf1561 | 1414 | device_unregister(rtd->dev); |
2eea392d JN |
1415 | rtd->dev_registered = 0; |
1416 | } | |
1417 | ||
65d9361f LPC |
1418 | if (component && component->probed) |
1419 | soc_remove_component(component); | |
2eea392d JN |
1420 | } |
1421 | ||
f90fb3f7 | 1422 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1423 | { |
1424 | int ret; | |
1425 | ||
1426 | if (codec->cache_init) | |
1427 | return 0; | |
1428 | ||
fdf0f54d DP |
1429 | ret = snd_soc_cache_init(codec); |
1430 | if (ret < 0) { | |
10e8aa9a MM |
1431 | dev_err(codec->dev, |
1432 | "ASoC: Failed to set cache compression type: %d\n", | |
1433 | ret); | |
fdf0f54d DP |
1434 | return ret; |
1435 | } | |
1436 | codec->cache_init = 1; | |
1437 | return 0; | |
1438 | } | |
1439 | ||
ce64c8b9 LPC |
1440 | /** |
1441 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1442 | * @rtd: The runtime for which the DAI link format should be changed | |
1443 | * @dai_fmt: The new DAI link format | |
1444 | * | |
1445 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1446 | * link for the specified runtime. | |
1447 | * | |
1448 | * Note: For setups with a static format set the dai_fmt field in the | |
1449 | * corresponding snd_dai_link struct instead of using this function. | |
1450 | * | |
1451 | * Returns 0 on success, otherwise a negative error code. | |
1452 | */ | |
1453 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1454 | unsigned int dai_fmt) | |
1455 | { | |
1456 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1457 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1458 | unsigned int i; | |
1459 | int ret; | |
1460 | ||
1461 | for (i = 0; i < rtd->num_codecs; i++) { | |
1462 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1463 | ||
1464 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1465 | if (ret != 0 && ret != -ENOTSUPP) { | |
1466 | dev_warn(codec_dai->dev, | |
1467 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1468 | return ret; | |
1469 | } | |
1470 | } | |
1471 | ||
1472 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1473 | if (cpu_dai->codec) { | |
1474 | unsigned int inv_dai_fmt; | |
1475 | ||
1476 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1477 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1478 | case SND_SOC_DAIFMT_CBM_CFM: | |
1479 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1480 | break; | |
1481 | case SND_SOC_DAIFMT_CBM_CFS: | |
1482 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1483 | break; | |
1484 | case SND_SOC_DAIFMT_CBS_CFM: | |
1485 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1486 | break; | |
1487 | case SND_SOC_DAIFMT_CBS_CFS: | |
1488 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1489 | break; | |
1490 | } | |
1491 | ||
1492 | dai_fmt = inv_dai_fmt; | |
1493 | } | |
1494 | ||
1495 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1496 | if (ret != 0 && ret != -ENOTSUPP) { | |
1497 | dev_warn(cpu_dai->dev, | |
1498 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1499 | return ret; | |
1500 | } | |
1501 | ||
1502 | return 0; | |
1503 | } | |
ddaca25a | 1504 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1505 | |
b19e6e7b | 1506 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1507 | { |
fdf0f54d | 1508 | struct snd_soc_codec *codec; |
ce64c8b9 | 1509 | int ret, i, order; |
fe3e78e0 | 1510 | |
01b9d99a | 1511 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1512 | |
f0fba2ad | 1513 | /* bind DAIs */ |
b19e6e7b MB |
1514 | for (i = 0; i < card->num_links; i++) { |
1515 | ret = soc_bind_dai_link(card, i); | |
1516 | if (ret != 0) | |
1517 | goto base_error; | |
1518 | } | |
fe3e78e0 | 1519 | |
44c69bb1 | 1520 | /* bind aux_devs too */ |
b19e6e7b | 1521 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 1522 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
1523 | if (ret != 0) |
1524 | goto base_error; | |
f0fba2ad | 1525 | } |
435c5e25 | 1526 | |
fdf0f54d DP |
1527 | /* initialize the register cache for each available codec */ |
1528 | list_for_each_entry(codec, &codec_list, list) { | |
1529 | if (codec->cache_init) | |
1530 | continue; | |
f90fb3f7 | 1531 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
1532 | if (ret < 0) |
1533 | goto base_error; | |
fdf0f54d DP |
1534 | } |
1535 | ||
f0fba2ad | 1536 | /* card bind complete so register a sound card */ |
102b5a8d | 1537 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1538 | card->owner, 0, &card->snd_card); |
1539 | if (ret < 0) { | |
10e8aa9a MM |
1540 | dev_err(card->dev, |
1541 | "ASoC: can't create sound card for card %s: %d\n", | |
1542 | card->name, ret); | |
b19e6e7b | 1543 | goto base_error; |
f0fba2ad | 1544 | } |
f0fba2ad | 1545 | |
e37a4970 MB |
1546 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1547 | card->dapm.dev = card->dev; | |
1548 | card->dapm.card = card; | |
1549 | list_add(&card->dapm.list, &card->dapm_list); | |
1550 | ||
d5d1e0be LPC |
1551 | #ifdef CONFIG_DEBUG_FS |
1552 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1553 | #endif | |
1554 | ||
88ee1c61 | 1555 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1556 | /* deferred resume work */ |
1557 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1558 | #endif | |
db2a4165 | 1559 | |
9a841ebb MB |
1560 | if (card->dapm_widgets) |
1561 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1562 | card->num_dapm_widgets); | |
1563 | ||
f0fba2ad LG |
1564 | /* initialise the sound card only once */ |
1565 | if (card->probe) { | |
e7361ec4 | 1566 | ret = card->probe(card); |
f0fba2ad LG |
1567 | if (ret < 0) |
1568 | goto card_probe_error; | |
1569 | } | |
fe3e78e0 | 1570 | |
62ae68fa | 1571 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1572 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1573 | order++) { | |
1574 | for (i = 0; i < card->num_links; i++) { | |
62ae68fa | 1575 | ret = soc_probe_link_components(card, i, order); |
0168bf0d | 1576 | if (ret < 0) { |
f110bfc7 LG |
1577 | dev_err(card->dev, |
1578 | "ASoC: failed to instantiate card %d\n", | |
1579 | ret); | |
62ae68fa SW |
1580 | goto probe_dai_err; |
1581 | } | |
1582 | } | |
1583 | } | |
1584 | ||
1585 | /* probe all DAI links on this card */ | |
1586 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1587 | order++) { | |
1588 | for (i = 0; i < card->num_links; i++) { | |
1589 | ret = soc_probe_link_dais(card, i, order); | |
1590 | if (ret < 0) { | |
f110bfc7 LG |
1591 | dev_err(card->dev, |
1592 | "ASoC: failed to instantiate card %d\n", | |
1593 | ret); | |
0168bf0d LG |
1594 | goto probe_dai_err; |
1595 | } | |
f0fba2ad LG |
1596 | } |
1597 | } | |
db2a4165 | 1598 | |
2eea392d JN |
1599 | for (i = 0; i < card->num_aux_devs; i++) { |
1600 | ret = soc_probe_aux_dev(card, i); | |
1601 | if (ret < 0) { | |
f110bfc7 LG |
1602 | dev_err(card->dev, |
1603 | "ASoC: failed to add auxiliary devices %d\n", | |
1604 | ret); | |
2eea392d JN |
1605 | goto probe_aux_dev_err; |
1606 | } | |
1607 | } | |
1608 | ||
888df395 | 1609 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1610 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1611 | |
b7af1daf | 1612 | if (card->controls) |
022658be | 1613 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1614 | |
b8ad29de MB |
1615 | if (card->dapm_routes) |
1616 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1617 | card->num_dapm_routes); | |
1618 | ||
75d9ac46 | 1619 | for (i = 0; i < card->num_links; i++) { |
ce64c8b9 LPC |
1620 | if (card->dai_link[i].dai_fmt) |
1621 | snd_soc_runtime_set_dai_fmt(&card->rtd[i], | |
1622 | card->dai_link[i].dai_fmt); | |
75d9ac46 MB |
1623 | } |
1624 | ||
f0fba2ad | 1625 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1626 | "%s", card->name); |
22de71ba LG |
1627 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1628 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1629 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1630 | "%s", card->driver_name ? card->driver_name : card->name); | |
1631 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1632 | switch (card->snd_card->driver[i]) { | |
1633 | case '_': | |
1634 | case '-': | |
1635 | case '\0': | |
1636 | break; | |
1637 | default: | |
1638 | if (!isalnum(card->snd_card->driver[i])) | |
1639 | card->snd_card->driver[i] = '_'; | |
1640 | break; | |
1641 | } | |
1642 | } | |
f0fba2ad | 1643 | |
28e9ad92 MB |
1644 | if (card->late_probe) { |
1645 | ret = card->late_probe(card); | |
1646 | if (ret < 0) { | |
f110bfc7 | 1647 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
1648 | card->name, ret); |
1649 | goto probe_aux_dev_err; | |
1650 | } | |
1651 | } | |
1652 | ||
824ef826 | 1653 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 1654 | |
f0fba2ad LG |
1655 | ret = snd_card_register(card->snd_card); |
1656 | if (ret < 0) { | |
f110bfc7 LG |
1657 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
1658 | ret); | |
6b3ed785 | 1659 | goto probe_aux_dev_err; |
db2a4165 FM |
1660 | } |
1661 | ||
f0fba2ad | 1662 | card->instantiated = 1; |
4f4c0072 | 1663 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1664 | mutex_unlock(&card->mutex); |
b19e6e7b MB |
1665 | |
1666 | return 0; | |
f0fba2ad | 1667 | |
2eea392d JN |
1668 | probe_aux_dev_err: |
1669 | for (i = 0; i < card->num_aux_devs; i++) | |
1670 | soc_remove_aux_dev(card, i); | |
1671 | ||
f0fba2ad | 1672 | probe_dai_err: |
0671fd8e | 1673 | soc_remove_dai_links(card); |
f0fba2ad LG |
1674 | |
1675 | card_probe_error: | |
87506549 | 1676 | if (card->remove) |
e7361ec4 | 1677 | card->remove(card); |
f0fba2ad LG |
1678 | |
1679 | snd_card_free(card->snd_card); | |
1680 | ||
b19e6e7b | 1681 | base_error: |
f0fba2ad | 1682 | mutex_unlock(&card->mutex); |
db2a4165 | 1683 | |
b19e6e7b | 1684 | return ret; |
435c5e25 MB |
1685 | } |
1686 | ||
1687 | /* probes a new socdev */ | |
1688 | static int soc_probe(struct platform_device *pdev) | |
1689 | { | |
f0fba2ad | 1690 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1691 | |
70a7ca34 VK |
1692 | /* |
1693 | * no card, so machine driver should be registering card | |
1694 | * we should not be here in that case so ret error | |
1695 | */ | |
1696 | if (!card) | |
1697 | return -EINVAL; | |
1698 | ||
fe4085e8 | 1699 | dev_warn(&pdev->dev, |
f110bfc7 | 1700 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
1701 | card->name); |
1702 | ||
435c5e25 MB |
1703 | /* Bodge while we unpick instantiation */ |
1704 | card->dev = &pdev->dev; | |
f0fba2ad | 1705 | |
28d528c8 | 1706 | return snd_soc_register_card(card); |
db2a4165 FM |
1707 | } |
1708 | ||
b0e26485 | 1709 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1710 | { |
1711 | int i; | |
db2a4165 | 1712 | |
b0e26485 VK |
1713 | /* make sure any delayed work runs */ |
1714 | for (i = 0; i < card->num_rtd; i++) { | |
1715 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1716 | flush_delayed_work(&rtd->delayed_work); |
b0e26485 | 1717 | } |
914dc182 | 1718 | |
b0e26485 VK |
1719 | /* remove auxiliary devices */ |
1720 | for (i = 0; i < card->num_aux_devs; i++) | |
1721 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1722 | |
b0e26485 | 1723 | /* remove and free each DAI */ |
0671fd8e | 1724 | soc_remove_dai_links(card); |
2eea392d | 1725 | |
b0e26485 | 1726 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1727 | |
b0e26485 VK |
1728 | /* remove the card */ |
1729 | if (card->remove) | |
e7361ec4 | 1730 | card->remove(card); |
a6052154 | 1731 | |
0aaae527 LPC |
1732 | snd_soc_dapm_free(&card->dapm); |
1733 | ||
b0e26485 VK |
1734 | snd_card_free(card->snd_card); |
1735 | return 0; | |
1736 | ||
1737 | } | |
1738 | ||
1739 | /* removes a socdev */ | |
1740 | static int soc_remove(struct platform_device *pdev) | |
1741 | { | |
1742 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1743 | |
c5af3a2e | 1744 | snd_soc_unregister_card(card); |
db2a4165 FM |
1745 | return 0; |
1746 | } | |
1747 | ||
6f8ab4ac | 1748 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1749 | { |
6f8ab4ac | 1750 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1751 | int i; |
51737470 MB |
1752 | |
1753 | if (!card->instantiated) | |
416356fc | 1754 | return 0; |
51737470 MB |
1755 | |
1756 | /* Flush out pmdown_time work - we actually do want to run it | |
1757 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1758 | for (i = 0; i < card->num_rtd; i++) { |
1759 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1760 | flush_delayed_work(&rtd->delayed_work); |
f0fba2ad | 1761 | } |
51737470 | 1762 | |
f0fba2ad | 1763 | snd_soc_dapm_shutdown(card); |
416356fc | 1764 | |
988e8cc4 NC |
1765 | /* deactivate pins to sleep state */ |
1766 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
1767 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
1768 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1769 | int j; | |
1770 | ||
988e8cc4 | 1771 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
88bd870f BC |
1772 | for (j = 0; j < rtd->num_codecs; j++) { |
1773 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
1774 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
1775 | } | |
988e8cc4 NC |
1776 | } |
1777 | ||
416356fc | 1778 | return 0; |
51737470 | 1779 | } |
6f8ab4ac | 1780 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1781 | |
6f8ab4ac | 1782 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1783 | .suspend = snd_soc_suspend, |
1784 | .resume = snd_soc_resume, | |
1785 | .freeze = snd_soc_suspend, | |
1786 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1787 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1788 | .restore = snd_soc_resume, |
416356fc | 1789 | }; |
deb2607e | 1790 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1791 | |
db2a4165 FM |
1792 | /* ASoC platform driver */ |
1793 | static struct platform_driver soc_driver = { | |
1794 | .driver = { | |
1795 | .name = "soc-audio", | |
6f8ab4ac | 1796 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1797 | }, |
1798 | .probe = soc_probe, | |
1799 | .remove = soc_remove, | |
db2a4165 FM |
1800 | }; |
1801 | ||
db2a4165 FM |
1802 | /** |
1803 | * snd_soc_cnew - create new control | |
1804 | * @_template: control template | |
1805 | * @data: control private data | |
ac11a2b3 | 1806 | * @long_name: control long name |
efb7ac3f | 1807 | * @prefix: control name prefix |
db2a4165 FM |
1808 | * |
1809 | * Create a new mixer control from a template control. | |
1810 | * | |
1811 | * Returns 0 for success, else error. | |
1812 | */ | |
1813 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 1814 | void *data, const char *long_name, |
efb7ac3f | 1815 | const char *prefix) |
db2a4165 FM |
1816 | { |
1817 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1818 | struct snd_kcontrol *kcontrol; |
1819 | char *name = NULL; | |
db2a4165 FM |
1820 | |
1821 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1822 | template.index = 0; |
1823 | ||
efb7ac3f MB |
1824 | if (!long_name) |
1825 | long_name = template.name; | |
1826 | ||
1827 | if (prefix) { | |
2b581074 | 1828 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
1829 | if (!name) |
1830 | return NULL; | |
1831 | ||
efb7ac3f MB |
1832 | template.name = name; |
1833 | } else { | |
1834 | template.name = long_name; | |
1835 | } | |
1836 | ||
1837 | kcontrol = snd_ctl_new1(&template, data); | |
1838 | ||
1839 | kfree(name); | |
1840 | ||
1841 | return kcontrol; | |
db2a4165 FM |
1842 | } |
1843 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1844 | ||
022658be LG |
1845 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
1846 | const struct snd_kcontrol_new *controls, int num_controls, | |
1847 | const char *prefix, void *data) | |
1848 | { | |
1849 | int err, i; | |
1850 | ||
1851 | for (i = 0; i < num_controls; i++) { | |
1852 | const struct snd_kcontrol_new *control = &controls[i]; | |
1853 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
1854 | control->name, prefix)); | |
1855 | if (err < 0) { | |
f110bfc7 LG |
1856 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
1857 | control->name, err); | |
022658be LG |
1858 | return err; |
1859 | } | |
1860 | } | |
1861 | ||
1862 | return 0; | |
1863 | } | |
1864 | ||
4fefd698 DP |
1865 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
1866 | const char *name) | |
1867 | { | |
1868 | struct snd_card *card = soc_card->snd_card; | |
1869 | struct snd_kcontrol *kctl; | |
1870 | ||
1871 | if (unlikely(!name)) | |
1872 | return NULL; | |
1873 | ||
1874 | list_for_each_entry(kctl, &card->controls, list) | |
1875 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
1876 | return kctl; | |
1877 | return NULL; | |
1878 | } | |
1879 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
1880 | ||
0f2780ad LPC |
1881 | /** |
1882 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
1883 | * | |
1884 | * @component: Component to add controls to | |
1885 | * @controls: Array of controls to add | |
1886 | * @num_controls: Number of elements in the array | |
1887 | * | |
1888 | * Return: 0 for success, else error. | |
1889 | */ | |
1890 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
1891 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
1892 | { | |
1893 | struct snd_card *card = component->card->snd_card; | |
1894 | ||
1895 | return snd_soc_add_controls(card, component->dev, controls, | |
1896 | num_controls, component->name_prefix, component); | |
1897 | } | |
1898 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
1899 | ||
3e8e1952 | 1900 | /** |
022658be LG |
1901 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
1902 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
1903 | * duplicating this code. |
1904 | * | |
1905 | * @codec: codec to add controls to | |
1906 | * @controls: array of controls to add | |
1907 | * @num_controls: number of elements in the array | |
1908 | * | |
1909 | * Return 0 for success, else error. | |
1910 | */ | |
022658be | 1911 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 1912 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 1913 | { |
0f2780ad LPC |
1914 | return snd_soc_add_component_controls(&codec->component, controls, |
1915 | num_controls); | |
3e8e1952 | 1916 | } |
022658be | 1917 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 1918 | |
a491a5c8 LG |
1919 | /** |
1920 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 1921 | * Convenience function to add a list of controls. |
a491a5c8 LG |
1922 | * |
1923 | * @platform: platform to add controls to | |
1924 | * @controls: array of controls to add | |
1925 | * @num_controls: number of elements in the array | |
1926 | * | |
1927 | * Return 0 for success, else error. | |
1928 | */ | |
1929 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 1930 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 1931 | { |
0f2780ad LPC |
1932 | return snd_soc_add_component_controls(&platform->component, controls, |
1933 | num_controls); | |
a491a5c8 LG |
1934 | } |
1935 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
1936 | ||
022658be LG |
1937 | /** |
1938 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
1939 | * Convenience function to add a list of controls. | |
1940 | * | |
1941 | * @soc_card: SoC card to add controls to | |
1942 | * @controls: array of controls to add | |
1943 | * @num_controls: number of elements in the array | |
1944 | * | |
1945 | * Return 0 for success, else error. | |
1946 | */ | |
1947 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
1948 | const struct snd_kcontrol_new *controls, int num_controls) | |
1949 | { | |
1950 | struct snd_card *card = soc_card->snd_card; | |
1951 | ||
1952 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
1953 | NULL, soc_card); | |
1954 | } | |
1955 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
1956 | ||
1957 | /** | |
1958 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
1959 | * Convienience function to add a list of controls. | |
1960 | * | |
1961 | * @dai: DAI to add controls to | |
1962 | * @controls: array of controls to add | |
1963 | * @num_controls: number of elements in the array | |
1964 | * | |
1965 | * Return 0 for success, else error. | |
1966 | */ | |
1967 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
1968 | const struct snd_kcontrol_new *controls, int num_controls) | |
1969 | { | |
313665b9 | 1970 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
1971 | |
1972 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
1973 | NULL, dai); | |
1974 | } | |
1975 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
1976 | ||
8c6529db LG |
1977 | /** |
1978 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
1979 | * @dai: DAI | |
1980 | * @clk_id: DAI specific clock ID | |
1981 | * @freq: new clock frequency in Hz | |
1982 | * @dir: new clock direction - input/output. | |
1983 | * | |
1984 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
1985 | */ | |
1986 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
1987 | unsigned int freq, int dir) | |
1988 | { | |
f0fba2ad LG |
1989 | if (dai->driver && dai->driver->ops->set_sysclk) |
1990 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 1991 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 1992 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 1993 | freq, dir); |
8c6529db | 1994 | else |
1104a9c8 | 1995 | return -ENOTSUPP; |
8c6529db LG |
1996 | } |
1997 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
1998 | ||
ec4ee52a MB |
1999 | /** |
2000 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2001 | * @codec: CODEC | |
2002 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2003 | * @source: Source for the clock |
ec4ee52a MB |
2004 | * @freq: new clock frequency in Hz |
2005 | * @dir: new clock direction - input/output. | |
2006 | * | |
2007 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2008 | */ | |
2009 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2010 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2011 | { |
2012 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2013 | return codec->driver->set_sysclk(codec, clk_id, source, |
2014 | freq, dir); | |
ec4ee52a | 2015 | else |
1104a9c8 | 2016 | return -ENOTSUPP; |
ec4ee52a MB |
2017 | } |
2018 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2019 | ||
8c6529db LG |
2020 | /** |
2021 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2022 | * @dai: DAI | |
ac11a2b3 | 2023 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2024 | * @div: new clock divisor. |
2025 | * | |
2026 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2027 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2028 | * and frame clocks as low as possible to save system power. | |
2029 | */ | |
2030 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2031 | int div_id, int div) | |
2032 | { | |
f0fba2ad LG |
2033 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2034 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2035 | else |
2036 | return -EINVAL; | |
2037 | } | |
2038 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2039 | ||
2040 | /** | |
2041 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2042 | * @dai: DAI | |
2043 | * @pll_id: DAI specific PLL ID | |
85488037 | 2044 | * @source: DAI specific source for the PLL |
8c6529db LG |
2045 | * @freq_in: PLL input clock frequency in Hz |
2046 | * @freq_out: requested PLL output clock frequency in Hz | |
2047 | * | |
2048 | * Configures and enables PLL to generate output clock based on input clock. | |
2049 | */ | |
85488037 MB |
2050 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2051 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2052 | { |
f0fba2ad LG |
2053 | if (dai->driver && dai->driver->ops->set_pll) |
2054 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2055 | freq_in, freq_out); |
ec4ee52a MB |
2056 | else if (dai->codec && dai->codec->driver->set_pll) |
2057 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2058 | freq_in, freq_out); | |
8c6529db LG |
2059 | else |
2060 | return -EINVAL; | |
2061 | } | |
2062 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2063 | ||
ec4ee52a MB |
2064 | /* |
2065 | * snd_soc_codec_set_pll - configure codec PLL. | |
2066 | * @codec: CODEC | |
2067 | * @pll_id: DAI specific PLL ID | |
2068 | * @source: DAI specific source for the PLL | |
2069 | * @freq_in: PLL input clock frequency in Hz | |
2070 | * @freq_out: requested PLL output clock frequency in Hz | |
2071 | * | |
2072 | * Configures and enables PLL to generate output clock based on input clock. | |
2073 | */ | |
2074 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2075 | unsigned int freq_in, unsigned int freq_out) | |
2076 | { | |
2077 | if (codec->driver->set_pll) | |
2078 | return codec->driver->set_pll(codec, pll_id, source, | |
2079 | freq_in, freq_out); | |
2080 | else | |
2081 | return -EINVAL; | |
2082 | } | |
2083 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2084 | ||
e54cf76b LG |
2085 | /** |
2086 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2087 | * @dai: DAI | |
2088 | * @ratio Ratio of BCLK to Sample rate. | |
2089 | * | |
2090 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2091 | */ | |
2092 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2093 | { | |
2094 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2095 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2096 | else | |
2097 | return -EINVAL; | |
2098 | } | |
2099 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2100 | ||
8c6529db LG |
2101 | /** |
2102 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2103 | * @dai: DAI | |
8c6529db LG |
2104 | * @fmt: SND_SOC_DAIFMT_ format value. |
2105 | * | |
2106 | * Configures the DAI hardware format and clocking. | |
2107 | */ | |
2108 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2109 | { | |
5e4ba569 | 2110 | if (dai->driver == NULL) |
8c6529db | 2111 | return -EINVAL; |
5e4ba569 SG |
2112 | if (dai->driver->ops->set_fmt == NULL) |
2113 | return -ENOTSUPP; | |
2114 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2115 | } |
2116 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2117 | ||
89c67857 | 2118 | /** |
e5c21514 | 2119 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2120 | * @slots: Number of slots in use. |
2121 | * @tx_mask: bitmask representing active TX slots. | |
2122 | * @rx_mask: bitmask representing active RX slots. | |
2123 | * | |
2124 | * Generates the TDM tx and rx slot default masks for DAI. | |
2125 | */ | |
e5c21514 | 2126 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2127 | unsigned int *tx_mask, |
2128 | unsigned int *rx_mask) | |
2129 | { | |
2130 | if (*tx_mask || *rx_mask) | |
2131 | return 0; | |
2132 | ||
2133 | if (!slots) | |
2134 | return -EINVAL; | |
2135 | ||
2136 | *tx_mask = (1 << slots) - 1; | |
2137 | *rx_mask = (1 << slots) - 1; | |
2138 | ||
2139 | return 0; | |
2140 | } | |
2141 | ||
8c6529db | 2142 | /** |
e46c9366 LPC |
2143 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2144 | * @dai: The DAI to configure | |
a5479e38 DR |
2145 | * @tx_mask: bitmask representing active TX slots. |
2146 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2147 | * @slots: Number of slots in use. |
a5479e38 | 2148 | * @slot_width: Width in bits for each slot. |
8c6529db | 2149 | * |
e46c9366 LPC |
2150 | * This function configures the specified DAI for TDM operation. @slot contains |
2151 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2152 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2153 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2154 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2155 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2156 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2157 | * maps to the first channel of the DAI, the second active slot to the second | |
2158 | * channel and so on. | |
2159 | * | |
2160 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2161 | * @rx_mask and @slot_width will be ignored. | |
2162 | * | |
2163 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2164 | */ |
2165 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2166 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2167 | { |
e5c21514 XL |
2168 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2169 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2170 | &tx_mask, &rx_mask); |
2171 | else | |
e5c21514 | 2172 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2173 | |
88bd870f BC |
2174 | dai->tx_mask = tx_mask; |
2175 | dai->rx_mask = rx_mask; | |
2176 | ||
f0fba2ad LG |
2177 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2178 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2179 | slots, slot_width); |
8c6529db | 2180 | else |
b2cbb6e1 | 2181 | return -ENOTSUPP; |
8c6529db LG |
2182 | } |
2183 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2184 | ||
472df3cb BS |
2185 | /** |
2186 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2187 | * @dai: DAI | |
2188 | * @tx_num: how many TX channels | |
2189 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2190 | * 0~num-1 uses | |
2191 | * @rx_num: how many RX channels | |
2192 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2193 | * 0~num-1 uses | |
2194 | * | |
2195 | * configure the relationship between channel number and TDM slot number. | |
2196 | */ | |
2197 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2198 | unsigned int tx_num, unsigned int *tx_slot, | |
2199 | unsigned int rx_num, unsigned int *rx_slot) | |
2200 | { | |
f0fba2ad LG |
2201 | if (dai->driver && dai->driver->ops->set_channel_map) |
2202 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2203 | rx_num, rx_slot); |
2204 | else | |
2205 | return -EINVAL; | |
2206 | } | |
2207 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2208 | ||
8c6529db LG |
2209 | /** |
2210 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2211 | * @dai: DAI | |
2212 | * @tristate: tristate enable | |
2213 | * | |
2214 | * Tristates the DAI so that others can use it. | |
2215 | */ | |
2216 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2217 | { | |
f0fba2ad LG |
2218 | if (dai->driver && dai->driver->ops->set_tristate) |
2219 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2220 | else |
2221 | return -EINVAL; | |
2222 | } | |
2223 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2224 | ||
2225 | /** | |
2226 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2227 | * @dai: DAI | |
2228 | * @mute: mute enable | |
da18396f | 2229 | * @direction: stream to mute |
8c6529db LG |
2230 | * |
2231 | * Mutes the DAI DAC. | |
2232 | */ | |
da18396f MB |
2233 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2234 | int direction) | |
8c6529db | 2235 | { |
da18396f MB |
2236 | if (!dai->driver) |
2237 | return -ENOTSUPP; | |
2238 | ||
2239 | if (dai->driver->ops->mute_stream) | |
2240 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2241 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2242 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2243 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2244 | else |
04570c62 | 2245 | return -ENOTSUPP; |
8c6529db LG |
2246 | } |
2247 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2248 | ||
88bd870f BC |
2249 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
2250 | struct snd_soc_dai_link *dai_link) | |
2251 | { | |
2252 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
2253 | if (dai_link->codec_name || dai_link->codec_of_node || | |
2254 | dai_link->codec_dai_name) { | |
2255 | dai_link->num_codecs = 1; | |
2256 | ||
2257 | dai_link->codecs = devm_kzalloc(card->dev, | |
2258 | sizeof(struct snd_soc_dai_link_component), | |
2259 | GFP_KERNEL); | |
2260 | if (!dai_link->codecs) | |
2261 | return -ENOMEM; | |
2262 | ||
2263 | dai_link->codecs[0].name = dai_link->codec_name; | |
2264 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
2265 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
2266 | } | |
2267 | ||
2268 | if (!dai_link->codecs) { | |
2269 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
2270 | return -EINVAL; | |
2271 | } | |
2272 | ||
2273 | return 0; | |
2274 | } | |
2275 | ||
c5af3a2e MB |
2276 | /** |
2277 | * snd_soc_register_card - Register a card with the ASoC core | |
2278 | * | |
ac11a2b3 | 2279 | * @card: Card to register |
c5af3a2e | 2280 | * |
c5af3a2e | 2281 | */ |
70a7ca34 | 2282 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2283 | { |
88bd870f | 2284 | int i, j, ret; |
f0fba2ad | 2285 | |
c5af3a2e MB |
2286 | if (!card->name || !card->dev) |
2287 | return -EINVAL; | |
2288 | ||
5a504963 SW |
2289 | for (i = 0; i < card->num_links; i++) { |
2290 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2291 | ||
88bd870f BC |
2292 | ret = snd_soc_init_multicodec(card, link); |
2293 | if (ret) { | |
2294 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
2295 | return ret; | |
5a504963 | 2296 | } |
88bd870f BC |
2297 | |
2298 | for (j = 0; j < link->num_codecs; j++) { | |
2299 | /* | |
2300 | * Codec must be specified by 1 of name or OF node, | |
2301 | * not both or neither. | |
2302 | */ | |
2303 | if (!!link->codecs[j].name == | |
2304 | !!link->codecs[j].of_node) { | |
2305 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
2306 | link->name); | |
2307 | return -EINVAL; | |
2308 | } | |
2309 | /* Codec DAI name must be specified */ | |
2310 | if (!link->codecs[j].dai_name) { | |
2311 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
2312 | link->name); | |
2313 | return -EINVAL; | |
2314 | } | |
bc92657a | 2315 | } |
5a504963 SW |
2316 | |
2317 | /* | |
2318 | * Platform may be specified by either name or OF node, but | |
2319 | * can be left unspecified, and a dummy platform will be used. | |
2320 | */ | |
2321 | if (link->platform_name && link->platform_of_node) { | |
10e8aa9a MM |
2322 | dev_err(card->dev, |
2323 | "ASoC: Both platform name/of_node are set for %s\n", | |
2324 | link->name); | |
5a504963 SW |
2325 | return -EINVAL; |
2326 | } | |
2327 | ||
2328 | /* | |
bc92657a SW |
2329 | * CPU device may be specified by either name or OF node, but |
2330 | * can be left unspecified, and will be matched based on DAI | |
2331 | * name alone.. | |
2332 | */ | |
2333 | if (link->cpu_name && link->cpu_of_node) { | |
10e8aa9a MM |
2334 | dev_err(card->dev, |
2335 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
2336 | link->name); | |
bc92657a SW |
2337 | return -EINVAL; |
2338 | } | |
2339 | /* | |
2340 | * At least one of CPU DAI name or CPU device name/node must be | |
2341 | * specified | |
5a504963 | 2342 | */ |
bc92657a SW |
2343 | if (!link->cpu_dai_name && |
2344 | !(link->cpu_name || link->cpu_of_node)) { | |
10e8aa9a MM |
2345 | dev_err(card->dev, |
2346 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
2347 | link->name); | |
5a504963 SW |
2348 | return -EINVAL; |
2349 | } | |
2350 | } | |
2351 | ||
ed77cc12 MB |
2352 | dev_set_drvdata(card->dev, card); |
2353 | ||
111c6419 SW |
2354 | snd_soc_initialize_card_lists(card); |
2355 | ||
150dd2f8 VK |
2356 | soc_init_card_debugfs(card); |
2357 | ||
181a6892 MB |
2358 | card->rtd = devm_kzalloc(card->dev, |
2359 | sizeof(struct snd_soc_pcm_runtime) * | |
2360 | (card->num_links + card->num_aux_devs), | |
2361 | GFP_KERNEL); | |
f0fba2ad LG |
2362 | if (card->rtd == NULL) |
2363 | return -ENOMEM; | |
a7dbb603 | 2364 | card->num_rtd = 0; |
2eea392d | 2365 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad | 2366 | |
5f3484ac LPC |
2367 | for (i = 0; i < card->num_links; i++) { |
2368 | card->rtd[i].card = card; | |
f0fba2ad | 2369 | card->rtd[i].dai_link = &card->dai_link[i]; |
88bd870f BC |
2370 | card->rtd[i].codec_dais = devm_kzalloc(card->dev, |
2371 | sizeof(struct snd_soc_dai *) * | |
2372 | (card->rtd[i].dai_link->num_codecs), | |
2373 | GFP_KERNEL); | |
2374 | if (card->rtd[i].codec_dais == NULL) | |
2375 | return -ENOMEM; | |
5f3484ac LPC |
2376 | } |
2377 | ||
2378 | for (i = 0; i < card->num_aux_devs; i++) | |
2379 | card->rtd_aux[i].card = card; | |
f0fba2ad | 2380 | |
db432b41 | 2381 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 2382 | card->instantiated = 0; |
f0fba2ad | 2383 | mutex_init(&card->mutex); |
a73fb2df | 2384 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2385 | |
b19e6e7b MB |
2386 | ret = snd_soc_instantiate_card(card); |
2387 | if (ret != 0) | |
2388 | soc_cleanup_card_debugfs(card); | |
c5af3a2e | 2389 | |
988e8cc4 NC |
2390 | /* deactivate pins to sleep state */ |
2391 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
2392 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
2393 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2394 | int j; | |
2395 | ||
2396 | for (j = 0; j < rtd->num_codecs; j++) { | |
2397 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2398 | if (!codec_dai->active) | |
2399 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2400 | } | |
2401 | ||
988e8cc4 NC |
2402 | if (!cpu_dai->active) |
2403 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2404 | } | |
2405 | ||
b19e6e7b | 2406 | return ret; |
c5af3a2e | 2407 | } |
70a7ca34 | 2408 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2409 | |
2410 | /** | |
2411 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2412 | * | |
ac11a2b3 | 2413 | * @card: Card to unregister |
c5af3a2e | 2414 | * |
c5af3a2e | 2415 | */ |
70a7ca34 | 2416 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2417 | { |
01e0df66 LPC |
2418 | if (card->instantiated) { |
2419 | card->instantiated = false; | |
1c325f77 | 2420 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2421 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2422 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2423 | } |
c5af3a2e MB |
2424 | |
2425 | return 0; | |
2426 | } | |
70a7ca34 | 2427 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2428 | |
f0fba2ad LG |
2429 | /* |
2430 | * Simplify DAI link configuration by removing ".-1" from device names | |
2431 | * and sanitizing names. | |
2432 | */ | |
0b9a214a | 2433 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2434 | { |
2435 | char *found, name[NAME_SIZE]; | |
2436 | int id1, id2; | |
2437 | ||
2438 | if (dev_name(dev) == NULL) | |
2439 | return NULL; | |
2440 | ||
58818a77 | 2441 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2442 | |
2443 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2444 | found = strstr(name, dev->driver->name); | |
2445 | if (found) { | |
2446 | /* get ID */ | |
2447 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2448 | ||
2449 | /* discard ID from name if ID == -1 */ | |
2450 | if (*id == -1) | |
2451 | found[strlen(dev->driver->name)] = '\0'; | |
2452 | } | |
2453 | ||
2454 | } else { | |
2455 | /* I2C component devices are named "bus-addr" */ | |
2456 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2457 | char tmp[NAME_SIZE]; | |
2458 | ||
2459 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2460 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2461 | |
2462 | /* sanitize component name for DAI link creation */ | |
2463 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2464 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2465 | } else |
2466 | *id = 0; | |
2467 | } | |
2468 | ||
2469 | return kstrdup(name, GFP_KERNEL); | |
2470 | } | |
2471 | ||
2472 | /* | |
2473 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2474 | * any ".-1" and using the DAI name (instead of device name). | |
2475 | */ | |
2476 | static inline char *fmt_multiple_name(struct device *dev, | |
2477 | struct snd_soc_dai_driver *dai_drv) | |
2478 | { | |
2479 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2480 | dev_err(dev, |
2481 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2482 | dev_name(dev)); | |
f0fba2ad LG |
2483 | return NULL; |
2484 | } | |
2485 | ||
2486 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2487 | } | |
2488 | ||
9115171a | 2489 | /** |
32c9ba54 | 2490 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2491 | * |
32c9ba54 | 2492 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2493 | */ |
32c9ba54 | 2494 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2495 | { |
5c1d5f09 | 2496 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2497 | |
5c1d5f09 | 2498 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2499 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2500 | dai->name); | |
5c1d5f09 | 2501 | list_del(&dai->list); |
32c9ba54 | 2502 | kfree(dai->name); |
f0fba2ad | 2503 | kfree(dai); |
f0fba2ad | 2504 | } |
9115171a | 2505 | } |
9115171a MB |
2506 | |
2507 | /** | |
32c9ba54 | 2508 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 2509 | * |
6106d129 LPC |
2510 | * @component: The component the DAIs are registered for |
2511 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 2512 | * @count: Number of DAIs |
32c9ba54 LPC |
2513 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
2514 | * parent's name. | |
9115171a | 2515 | */ |
6106d129 | 2516 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
2517 | struct snd_soc_dai_driver *dai_drv, size_t count, |
2518 | bool legacy_dai_naming) | |
9115171a | 2519 | { |
6106d129 | 2520 | struct device *dev = component->dev; |
f0fba2ad | 2521 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
2522 | unsigned int i; |
2523 | int ret; | |
f0fba2ad | 2524 | |
f110bfc7 | 2525 | dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count); |
9115171a | 2526 | |
bb13109d LPC |
2527 | component->dai_drv = dai_drv; |
2528 | component->num_dai = count; | |
2529 | ||
9115171a | 2530 | for (i = 0; i < count; i++) { |
f0fba2ad LG |
2531 | |
2532 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
2533 | if (dai == NULL) { |
2534 | ret = -ENOMEM; | |
2535 | goto err; | |
2536 | } | |
f0fba2ad | 2537 | |
32c9ba54 LPC |
2538 | /* |
2539 | * Back in the old days when we still had component-less DAIs, | |
2540 | * instead of having a static name, component-less DAIs would | |
2541 | * inherit the name of the parent device so it is possible to | |
2542 | * register multiple instances of the DAI. We still need to keep | |
2543 | * the same naming style even though those DAIs are not | |
2544 | * component-less anymore. | |
2545 | */ | |
2546 | if (count == 1 && legacy_dai_naming) { | |
2547 | dai->name = fmt_single_name(dev, &dai->id); | |
2548 | } else { | |
2549 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
2550 | if (dai_drv[i].id) | |
2551 | dai->id = dai_drv[i].id; | |
2552 | else | |
2553 | dai->id = i; | |
2554 | } | |
f0fba2ad LG |
2555 | if (dai->name == NULL) { |
2556 | kfree(dai); | |
32c9ba54 | 2557 | ret = -ENOMEM; |
9115171a | 2558 | goto err; |
f0fba2ad LG |
2559 | } |
2560 | ||
6106d129 | 2561 | dai->component = component; |
f0fba2ad | 2562 | dai->dev = dev; |
f0fba2ad LG |
2563 | dai->driver = &dai_drv[i]; |
2564 | if (!dai->driver->ops) | |
2565 | dai->driver->ops = &null_dai_ops; | |
2566 | ||
1438c2f6 | 2567 | list_add(&dai->list, &component->dai_list); |
054880fe | 2568 | |
32c9ba54 | 2569 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); |
9115171a MB |
2570 | } |
2571 | ||
2572 | return 0; | |
2573 | ||
2574 | err: | |
32c9ba54 | 2575 | snd_soc_unregister_dais(component); |
9115171a MB |
2576 | |
2577 | return ret; | |
2578 | } | |
9115171a | 2579 | |
14e8bdeb LPC |
2580 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
2581 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 2582 | { |
14e8bdeb | 2583 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 2584 | |
14e8bdeb LPC |
2585 | component->driver->seq_notifier(component, type, subseq); |
2586 | } | |
d191bd8d | 2587 | |
14e8bdeb LPC |
2588 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
2589 | int event) | |
2590 | { | |
2591 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 2592 | |
14e8bdeb LPC |
2593 | return component->driver->stream_event(component, event); |
2594 | } | |
e2c330b9 | 2595 | |
bb13109d LPC |
2596 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
2597 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 2598 | { |
ce0fc93a LPC |
2599 | struct snd_soc_dapm_context *dapm; |
2600 | ||
bb13109d LPC |
2601 | component->name = fmt_single_name(dev, &component->id); |
2602 | if (!component->name) { | |
2603 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
2604 | return -ENOMEM; |
2605 | } | |
2606 | ||
bb13109d LPC |
2607 | component->dev = dev; |
2608 | component->driver = driver; | |
61aca564 LPC |
2609 | component->probe = component->driver->probe; |
2610 | component->remove = component->driver->remove; | |
d191bd8d | 2611 | |
ce0fc93a LPC |
2612 | if (!component->dapm_ptr) |
2613 | component->dapm_ptr = &component->dapm; | |
2614 | ||
2615 | dapm = component->dapm_ptr; | |
2616 | dapm->dev = dev; | |
2617 | dapm->component = component; | |
2618 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 2619 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
2620 | if (driver->seq_notifier) |
2621 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
2622 | if (driver->stream_event) | |
2623 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 2624 | |
61aca564 LPC |
2625 | component->controls = driver->controls; |
2626 | component->num_controls = driver->num_controls; | |
2627 | component->dapm_widgets = driver->dapm_widgets; | |
2628 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
2629 | component->dapm_routes = driver->dapm_routes; | |
2630 | component->num_dapm_routes = driver->num_dapm_routes; | |
2631 | ||
bb13109d LPC |
2632 | INIT_LIST_HEAD(&component->dai_list); |
2633 | mutex_init(&component->io_mutex); | |
d191bd8d | 2634 | |
bb13109d LPC |
2635 | return 0; |
2636 | } | |
d191bd8d | 2637 | |
20feb881 | 2638 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 2639 | { |
20feb881 LPC |
2640 | int val_bytes = regmap_get_val_bytes(component->regmap); |
2641 | ||
2642 | /* Errors are legitimate for non-integer byte multiples */ | |
2643 | if (val_bytes > 0) | |
2644 | component->val_bytes = val_bytes; | |
2645 | } | |
2646 | ||
e874bf5f LPC |
2647 | #ifdef CONFIG_REGMAP |
2648 | ||
20feb881 LPC |
2649 | /** |
2650 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
2651 | * @component: The component for which to initialize the regmap instance | |
2652 | * @regmap: The regmap instance that should be used by the component | |
2653 | * | |
2654 | * This function allows deferred assignment of the regmap instance that is | |
2655 | * associated with the component. Only use this if the regmap instance is not | |
2656 | * yet ready when the component is registered. The function must also be called | |
2657 | * before the first IO attempt of the component. | |
2658 | */ | |
2659 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
2660 | struct regmap *regmap) | |
2661 | { | |
2662 | component->regmap = regmap; | |
2663 | snd_soc_component_setup_regmap(component); | |
886f5692 | 2664 | } |
20feb881 LPC |
2665 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
2666 | ||
2667 | /** | |
2668 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
2669 | * @component: The component for which to de-initialize the regmap instance | |
2670 | * | |
2671 | * Calls regmap_exit() on the regmap instance associated to the component and | |
2672 | * removes the regmap instance from the component. | |
2673 | * | |
2674 | * This function should only be used if snd_soc_component_init_regmap() was used | |
2675 | * to initialize the regmap instance. | |
2676 | */ | |
2677 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
2678 | { | |
2679 | regmap_exit(component->regmap); | |
2680 | component->regmap = NULL; | |
2681 | } | |
2682 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 2683 | |
e874bf5f | 2684 | #endif |
886f5692 | 2685 | |
bb13109d LPC |
2686 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
2687 | { | |
20feb881 LPC |
2688 | if (!component->write && !component->read) { |
2689 | if (!component->regmap) | |
2690 | component->regmap = dev_get_regmap(component->dev, NULL); | |
2691 | if (component->regmap) | |
2692 | snd_soc_component_setup_regmap(component); | |
2693 | } | |
886f5692 | 2694 | |
bb13109d LPC |
2695 | list_add(&component->list, &component_list); |
2696 | } | |
d191bd8d | 2697 | |
bb13109d LPC |
2698 | static void snd_soc_component_add(struct snd_soc_component *component) |
2699 | { | |
d191bd8d | 2700 | mutex_lock(&client_mutex); |
bb13109d | 2701 | snd_soc_component_add_unlocked(component); |
d191bd8d | 2702 | mutex_unlock(&client_mutex); |
bb13109d | 2703 | } |
d191bd8d | 2704 | |
bb13109d LPC |
2705 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
2706 | { | |
2707 | snd_soc_unregister_dais(component); | |
2708 | kfree(component->name); | |
2709 | } | |
d191bd8d | 2710 | |
bb13109d LPC |
2711 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
2712 | { | |
2713 | list_del(&component->list); | |
2714 | } | |
d191bd8d | 2715 | |
bb13109d LPC |
2716 | static void snd_soc_component_del(struct snd_soc_component *component) |
2717 | { | |
2718 | mutex_lock(&client_mutex); | |
2719 | snd_soc_component_del_unlocked(component); | |
2720 | mutex_unlock(&client_mutex); | |
d191bd8d KM |
2721 | } |
2722 | ||
2723 | int snd_soc_register_component(struct device *dev, | |
2724 | const struct snd_soc_component_driver *cmpnt_drv, | |
2725 | struct snd_soc_dai_driver *dai_drv, | |
2726 | int num_dai) | |
2727 | { | |
2728 | struct snd_soc_component *cmpnt; | |
bb13109d | 2729 | int ret; |
d191bd8d | 2730 | |
bb13109d | 2731 | cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); |
d191bd8d KM |
2732 | if (!cmpnt) { |
2733 | dev_err(dev, "ASoC: Failed to allocate memory\n"); | |
2734 | return -ENOMEM; | |
2735 | } | |
2736 | ||
bb13109d LPC |
2737 | ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); |
2738 | if (ret) | |
2739 | goto err_free; | |
2740 | ||
3d59400f | 2741 | cmpnt->ignore_pmdown_time = true; |
98e639fb | 2742 | cmpnt->registered_as_component = true; |
3d59400f | 2743 | |
bb13109d LPC |
2744 | ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); |
2745 | if (ret < 0) { | |
2746 | dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret); | |
2747 | goto err_cleanup; | |
2748 | } | |
d191bd8d | 2749 | |
bb13109d | 2750 | snd_soc_component_add(cmpnt); |
4da53393 | 2751 | |
bb13109d | 2752 | return 0; |
4da53393 | 2753 | |
bb13109d LPC |
2754 | err_cleanup: |
2755 | snd_soc_component_cleanup(cmpnt); | |
2756 | err_free: | |
2757 | kfree(cmpnt); | |
2758 | return ret; | |
4da53393 | 2759 | } |
bb13109d | 2760 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 2761 | |
d191bd8d KM |
2762 | /** |
2763 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
2764 | * | |
2765 | */ | |
2766 | void snd_soc_unregister_component(struct device *dev) | |
2767 | { | |
2768 | struct snd_soc_component *cmpnt; | |
2769 | ||
2770 | list_for_each_entry(cmpnt, &component_list, list) { | |
98e639fb | 2771 | if (dev == cmpnt->dev && cmpnt->registered_as_component) |
d191bd8d KM |
2772 | goto found; |
2773 | } | |
2774 | return; | |
2775 | ||
2776 | found: | |
bb13109d LPC |
2777 | snd_soc_component_del(cmpnt); |
2778 | snd_soc_component_cleanup(cmpnt); | |
2779 | kfree(cmpnt); | |
d191bd8d KM |
2780 | } |
2781 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 2782 | |
f1d45cc3 | 2783 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
2784 | { |
2785 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 2786 | |
f1d45cc3 | 2787 | return platform->driver->probe(platform); |
e2c330b9 LPC |
2788 | } |
2789 | ||
f1d45cc3 | 2790 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
2791 | { |
2792 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
2793 | ||
f1d45cc3 | 2794 | platform->driver->remove(platform); |
d191bd8d | 2795 | } |
d191bd8d | 2796 | |
12a48a8c | 2797 | /** |
71a45cda LPC |
2798 | * snd_soc_add_platform - Add a platform to the ASoC core |
2799 | * @dev: The parent device for the platform | |
2800 | * @platform: The platform to add | |
2801 | * @platform_driver: The driver for the platform | |
12a48a8c | 2802 | */ |
71a45cda | 2803 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 2804 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 2805 | { |
b37f1d12 LPC |
2806 | int ret; |
2807 | ||
bb13109d LPC |
2808 | ret = snd_soc_component_initialize(&platform->component, |
2809 | &platform_drv->component_driver, dev); | |
2810 | if (ret) | |
2811 | return ret; | |
12a48a8c | 2812 | |
f0fba2ad LG |
2813 | platform->dev = dev; |
2814 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
2815 | |
2816 | if (platform_drv->probe) | |
2817 | platform->component.probe = snd_soc_platform_drv_probe; | |
2818 | if (platform_drv->remove) | |
2819 | platform->component.remove = snd_soc_platform_drv_remove; | |
12a48a8c | 2820 | |
81c7cfd1 LPC |
2821 | #ifdef CONFIG_DEBUG_FS |
2822 | platform->component.debugfs_prefix = "platform"; | |
2823 | #endif | |
12a48a8c MB |
2824 | |
2825 | mutex_lock(&client_mutex); | |
bb13109d | 2826 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
2827 | list_add(&platform->list, &platform_list); |
2828 | mutex_unlock(&client_mutex); | |
2829 | ||
f4333203 LPC |
2830 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
2831 | platform->component.name); | |
12a48a8c MB |
2832 | |
2833 | return 0; | |
2834 | } | |
71a45cda | 2835 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
2836 | |
2837 | /** | |
71a45cda | 2838 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 2839 | * |
71a45cda | 2840 | * @platform: platform to register |
12a48a8c | 2841 | */ |
71a45cda LPC |
2842 | int snd_soc_register_platform(struct device *dev, |
2843 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 2844 | { |
f0fba2ad | 2845 | struct snd_soc_platform *platform; |
71a45cda | 2846 | int ret; |
f0fba2ad | 2847 | |
71a45cda | 2848 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 2849 | |
71a45cda LPC |
2850 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
2851 | if (platform == NULL) | |
2852 | return -ENOMEM; | |
2853 | ||
2854 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
2855 | if (ret) | |
2856 | kfree(platform); | |
2857 | ||
2858 | return ret; | |
2859 | } | |
2860 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2861 | ||
2862 | /** | |
2863 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
2864 | * @platform: the platform to remove | |
2865 | */ | |
2866 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
2867 | { | |
b37f1d12 | 2868 | |
12a48a8c MB |
2869 | mutex_lock(&client_mutex); |
2870 | list_del(&platform->list); | |
bb13109d | 2871 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
2872 | mutex_unlock(&client_mutex); |
2873 | ||
71a45cda | 2874 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 2875 | platform->component.name); |
decc27b0 DM |
2876 | |
2877 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
2878 | } |
2879 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
2880 | ||
2881 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
2882 | { | |
2883 | struct snd_soc_platform *platform; | |
2884 | ||
2885 | list_for_each_entry(platform, &platform_list, list) { | |
2886 | if (dev == platform->dev) | |
2887 | return platform; | |
2888 | } | |
2889 | ||
2890 | return NULL; | |
2891 | } | |
2892 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
2893 | ||
2894 | /** | |
2895 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2896 | * | |
2897 | * @platform: platform to unregister | |
2898 | */ | |
2899 | void snd_soc_unregister_platform(struct device *dev) | |
2900 | { | |
2901 | struct snd_soc_platform *platform; | |
2902 | ||
2903 | platform = snd_soc_lookup_platform(dev); | |
2904 | if (!platform) | |
2905 | return; | |
2906 | ||
2907 | snd_soc_remove_platform(platform); | |
f0fba2ad | 2908 | kfree(platform); |
12a48a8c MB |
2909 | } |
2910 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2911 | ||
151ab22c MB |
2912 | static u64 codec_format_map[] = { |
2913 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
2914 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
2915 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
2916 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
2917 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
2918 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
2919 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2920 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2921 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
2922 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
2923 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
2924 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
2925 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
2926 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
2927 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
2928 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
2929 | }; | |
2930 | ||
2931 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
2932 | * the endianness of the data but we're using the CPU format | |
2933 | * definitions which do need to include endianness so we ensure that | |
2934 | * codec DAIs always have both big and little endian variants set. | |
2935 | */ | |
2936 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
2937 | { | |
2938 | int i; | |
2939 | ||
2940 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
2941 | if (stream->formats & codec_format_map[i]) | |
2942 | stream->formats |= codec_format_map[i]; | |
2943 | } | |
2944 | ||
f1d45cc3 LPC |
2945 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
2946 | { | |
2947 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2948 | ||
2949 | return codec->driver->probe(codec); | |
2950 | } | |
2951 | ||
2952 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
2953 | { | |
2954 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2955 | ||
2956 | codec->driver->remove(codec); | |
2957 | } | |
2958 | ||
e2c330b9 LPC |
2959 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
2960 | unsigned int reg, unsigned int val) | |
2961 | { | |
2962 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2963 | ||
2964 | return codec->driver->write(codec, reg, val); | |
2965 | } | |
2966 | ||
2967 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
2968 | unsigned int reg, unsigned int *val) | |
2969 | { | |
2970 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2971 | ||
2972 | *val = codec->driver->read(codec, reg); | |
2973 | ||
2974 | return 0; | |
2975 | } | |
2976 | ||
68f831c2 LPC |
2977 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
2978 | enum snd_soc_bias_level level) | |
2979 | { | |
2980 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
2981 | ||
2982 | return codec->driver->set_bias_level(codec, level); | |
2983 | } | |
2984 | ||
0d0cf00a MB |
2985 | /** |
2986 | * snd_soc_register_codec - Register a codec with the ASoC core | |
2987 | * | |
ac11a2b3 | 2988 | * @codec: codec to register |
0d0cf00a | 2989 | */ |
f0fba2ad | 2990 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
2991 | const struct snd_soc_codec_driver *codec_drv, |
2992 | struct snd_soc_dai_driver *dai_drv, | |
2993 | int num_dai) | |
0d0cf00a | 2994 | { |
f0fba2ad | 2995 | struct snd_soc_codec *codec; |
bb13109d | 2996 | struct snd_soc_dai *dai; |
f0fba2ad | 2997 | int ret, i; |
151ab22c | 2998 | |
f0fba2ad LG |
2999 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3000 | ||
3001 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3002 | if (codec == NULL) | |
3003 | return -ENOMEM; | |
0d0cf00a | 3004 | |
ce0fc93a | 3005 | codec->component.dapm_ptr = &codec->dapm; |
f1d45cc3 | 3006 | codec->component.codec = codec; |
ce0fc93a | 3007 | |
bb13109d LPC |
3008 | ret = snd_soc_component_initialize(&codec->component, |
3009 | &codec_drv->component_driver, dev); | |
3010 | if (ret) | |
3011 | goto err_free; | |
f0fba2ad | 3012 | |
f1d45cc3 LPC |
3013 | if (codec_drv->controls) { |
3014 | codec->component.controls = codec_drv->controls; | |
3015 | codec->component.num_controls = codec_drv->num_controls; | |
3016 | } | |
3017 | if (codec_drv->dapm_widgets) { | |
3018 | codec->component.dapm_widgets = codec_drv->dapm_widgets; | |
3019 | codec->component.num_dapm_widgets = codec_drv->num_dapm_widgets; | |
3020 | } | |
3021 | if (codec_drv->dapm_routes) { | |
3022 | codec->component.dapm_routes = codec_drv->dapm_routes; | |
3023 | codec->component.num_dapm_routes = codec_drv->num_dapm_routes; | |
3024 | } | |
3025 | ||
3026 | if (codec_drv->probe) | |
3027 | codec->component.probe = snd_soc_codec_drv_probe; | |
3028 | if (codec_drv->remove) | |
3029 | codec->component.remove = snd_soc_codec_drv_remove; | |
e2c330b9 LPC |
3030 | if (codec_drv->write) |
3031 | codec->component.write = snd_soc_codec_drv_write; | |
3032 | if (codec_drv->read) | |
3033 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3034 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
5819c2fa | 3035 | codec->dapm.idle_bias_off = codec_drv->idle_bias_off; |
86dbf2ac | 3036 | codec->dapm.suspend_bias_off = codec_drv->suspend_bias_off; |
14e8bdeb LPC |
3037 | if (codec_drv->seq_notifier) |
3038 | codec->dapm.seq_notifier = codec_drv->seq_notifier; | |
68f831c2 LPC |
3039 | if (codec_drv->set_bias_level) |
3040 | codec->dapm.set_bias_level = snd_soc_codec_set_bias_level; | |
7a30a3db DP |
3041 | codec->dev = dev; |
3042 | codec->driver = codec_drv; | |
e2c330b9 | 3043 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3044 | |
81c7cfd1 LPC |
3045 | #ifdef CONFIG_DEBUG_FS |
3046 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3047 | codec->component.debugfs_prefix = "codec"; | |
3048 | #endif | |
3049 | ||
886f5692 LPC |
3050 | if (codec_drv->get_regmap) |
3051 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3052 | |
f0fba2ad LG |
3053 | for (i = 0; i < num_dai; i++) { |
3054 | fixup_codec_formats(&dai_drv[i].playback); | |
3055 | fixup_codec_formats(&dai_drv[i].capture); | |
3056 | } | |
3057 | ||
bb13109d | 3058 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3059 | if (ret < 0) { |
bb13109d LPC |
3060 | dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret); |
3061 | goto err_cleanup; | |
26b01ccd | 3062 | } |
f0fba2ad | 3063 | |
bb13109d LPC |
3064 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3065 | dai->codec = codec; | |
f0fba2ad | 3066 | |
e1328a83 | 3067 | mutex_lock(&client_mutex); |
bb13109d | 3068 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3069 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3070 | mutex_unlock(&client_mutex); |
3071 | ||
f4333203 LPC |
3072 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3073 | codec->component.name); | |
0d0cf00a | 3074 | return 0; |
f0fba2ad | 3075 | |
bb13109d LPC |
3076 | err_cleanup: |
3077 | snd_soc_component_cleanup(&codec->component); | |
3078 | err_free: | |
f0fba2ad LG |
3079 | kfree(codec); |
3080 | return ret; | |
0d0cf00a MB |
3081 | } |
3082 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3083 | ||
3084 | /** | |
3085 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3086 | * | |
ac11a2b3 | 3087 | * @codec: codec to unregister |
0d0cf00a | 3088 | */ |
f0fba2ad | 3089 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3090 | { |
f0fba2ad | 3091 | struct snd_soc_codec *codec; |
f0fba2ad LG |
3092 | |
3093 | list_for_each_entry(codec, &codec_list, list) { | |
3094 | if (dev == codec->dev) | |
3095 | goto found; | |
3096 | } | |
3097 | return; | |
3098 | ||
3099 | found: | |
f0fba2ad | 3100 | |
0d0cf00a MB |
3101 | mutex_lock(&client_mutex); |
3102 | list_del(&codec->list); | |
bb13109d | 3103 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3104 | mutex_unlock(&client_mutex); |
3105 | ||
f4333203 LPC |
3106 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3107 | codec->component.name); | |
f0fba2ad | 3108 | |
bb13109d | 3109 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3110 | snd_soc_cache_exit(codec); |
f0fba2ad | 3111 | kfree(codec); |
0d0cf00a MB |
3112 | } |
3113 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3114 | ||
bec4fa05 SW |
3115 | /* Retrieve a card's name from device tree */ |
3116 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3117 | const char *propname) | |
3118 | { | |
7e07e7c0 | 3119 | struct device_node *np; |
bec4fa05 SW |
3120 | int ret; |
3121 | ||
7e07e7c0 TB |
3122 | if (!card->dev) { |
3123 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3124 | return -EINVAL; | |
3125 | } | |
3126 | ||
3127 | np = card->dev->of_node; | |
3128 | ||
bec4fa05 SW |
3129 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3130 | /* | |
3131 | * EINVAL means the property does not exist. This is fine providing | |
3132 | * card->name was previously set, which is checked later in | |
3133 | * snd_soc_register_card. | |
3134 | */ | |
3135 | if (ret < 0 && ret != -EINVAL) { | |
3136 | dev_err(card->dev, | |
f110bfc7 | 3137 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3138 | propname, ret); |
3139 | return ret; | |
3140 | } | |
3141 | ||
3142 | return 0; | |
3143 | } | |
3144 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3145 | ||
9a6d4860 XL |
3146 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3147 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3148 | SND_SOC_DAPM_LINE("Line", NULL), | |
3149 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3150 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3151 | }; | |
3152 | ||
3153 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, | |
3154 | const char *propname) | |
3155 | { | |
3156 | struct device_node *np = card->dev->of_node; | |
3157 | struct snd_soc_dapm_widget *widgets; | |
3158 | const char *template, *wname; | |
3159 | int i, j, num_widgets, ret; | |
3160 | ||
3161 | num_widgets = of_property_count_strings(np, propname); | |
3162 | if (num_widgets < 0) { | |
3163 | dev_err(card->dev, | |
3164 | "ASoC: Property '%s' does not exist\n", propname); | |
3165 | return -EINVAL; | |
3166 | } | |
3167 | if (num_widgets & 1) { | |
3168 | dev_err(card->dev, | |
3169 | "ASoC: Property '%s' length is not even\n", propname); | |
3170 | return -EINVAL; | |
3171 | } | |
3172 | ||
3173 | num_widgets /= 2; | |
3174 | if (!num_widgets) { | |
3175 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3176 | propname); | |
3177 | return -EINVAL; | |
3178 | } | |
3179 | ||
3180 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3181 | GFP_KERNEL); | |
3182 | if (!widgets) { | |
3183 | dev_err(card->dev, | |
3184 | "ASoC: Could not allocate memory for widgets\n"); | |
3185 | return -ENOMEM; | |
3186 | } | |
3187 | ||
3188 | for (i = 0; i < num_widgets; i++) { | |
3189 | ret = of_property_read_string_index(np, propname, | |
3190 | 2 * i, &template); | |
3191 | if (ret) { | |
3192 | dev_err(card->dev, | |
3193 | "ASoC: Property '%s' index %d read error:%d\n", | |
3194 | propname, 2 * i, ret); | |
3195 | return -EINVAL; | |
3196 | } | |
3197 | ||
3198 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3199 | if (!strncmp(template, simple_widgets[j].name, | |
3200 | strlen(simple_widgets[j].name))) { | |
3201 | widgets[i] = simple_widgets[j]; | |
3202 | break; | |
3203 | } | |
3204 | } | |
3205 | ||
3206 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3207 | dev_err(card->dev, | |
3208 | "ASoC: DAPM widget '%s' is not supported\n", | |
3209 | template); | |
3210 | return -EINVAL; | |
3211 | } | |
3212 | ||
3213 | ret = of_property_read_string_index(np, propname, | |
3214 | (2 * i) + 1, | |
3215 | &wname); | |
3216 | if (ret) { | |
3217 | dev_err(card->dev, | |
3218 | "ASoC: Property '%s' index %d read error:%d\n", | |
3219 | propname, (2 * i) + 1, ret); | |
3220 | return -EINVAL; | |
3221 | } | |
3222 | ||
3223 | widgets[i].name = wname; | |
3224 | } | |
3225 | ||
3226 | card->dapm_widgets = widgets; | |
3227 | card->num_dapm_widgets = num_widgets; | |
3228 | ||
3229 | return 0; | |
3230 | } | |
3231 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); | |
3232 | ||
89c67857 XL |
3233 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
3234 | unsigned int *slots, | |
3235 | unsigned int *slot_width) | |
3236 | { | |
3237 | u32 val; | |
3238 | int ret; | |
3239 | ||
3240 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { | |
3241 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3242 | if (ret) | |
3243 | return ret; | |
3244 | ||
3245 | if (slots) | |
3246 | *slots = val; | |
3247 | } | |
3248 | ||
3249 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3250 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3251 | if (ret) | |
3252 | return ret; | |
3253 | ||
3254 | if (slot_width) | |
3255 | *slot_width = val; | |
3256 | } | |
3257 | ||
3258 | return 0; | |
3259 | } | |
3260 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3261 | ||
a4a54dd5 SW |
3262 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3263 | const char *propname) | |
3264 | { | |
3265 | struct device_node *np = card->dev->of_node; | |
e3b1e6a1 | 3266 | int num_routes; |
a4a54dd5 SW |
3267 | struct snd_soc_dapm_route *routes; |
3268 | int i, ret; | |
3269 | ||
3270 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3271 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3272 | dev_err(card->dev, |
3273 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3274 | propname); | |
a4a54dd5 SW |
3275 | return -EINVAL; |
3276 | } | |
3277 | num_routes /= 2; | |
3278 | if (!num_routes) { | |
f110bfc7 | 3279 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3280 | propname); |
3281 | return -EINVAL; | |
3282 | } | |
3283 | ||
e3b1e6a1 | 3284 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3285 | GFP_KERNEL); |
3286 | if (!routes) { | |
3287 | dev_err(card->dev, | |
f110bfc7 | 3288 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3289 | return -EINVAL; |
3290 | } | |
3291 | ||
3292 | for (i = 0; i < num_routes; i++) { | |
3293 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3294 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3295 | if (ret) { |
c871bd0b MB |
3296 | dev_err(card->dev, |
3297 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3298 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3299 | return -EINVAL; |
3300 | } | |
3301 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3302 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3303 | if (ret) { |
3304 | dev_err(card->dev, | |
c871bd0b MB |
3305 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3306 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3307 | return -EINVAL; |
3308 | } | |
3309 | } | |
3310 | ||
e3b1e6a1 | 3311 | card->num_dapm_routes = num_routes; |
a4a54dd5 SW |
3312 | card->dapm_routes = routes; |
3313 | ||
3314 | return 0; | |
3315 | } | |
3316 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3317 | ||
a7930ed4 | 3318 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3319 | const char *prefix, |
3320 | struct device_node **bitclkmaster, | |
3321 | struct device_node **framemaster) | |
a7930ed4 KM |
3322 | { |
3323 | int ret, i; | |
3324 | char prop[128]; | |
3325 | unsigned int format = 0; | |
3326 | int bit, frame; | |
3327 | const char *str; | |
3328 | struct { | |
3329 | char *name; | |
3330 | unsigned int val; | |
3331 | } of_fmt_table[] = { | |
3332 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3333 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3334 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3335 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3336 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3337 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3338 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3339 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3340 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3341 | }; |
3342 | ||
3343 | if (!prefix) | |
3344 | prefix = ""; | |
3345 | ||
3346 | /* | |
3347 | * check "[prefix]format = xxx" | |
3348 | * SND_SOC_DAIFMT_FORMAT_MASK area | |
3349 | */ | |
3350 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3351 | ret = of_property_read_string(np, prop, &str); | |
3352 | if (ret == 0) { | |
3353 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3354 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3355 | format |= of_fmt_table[i].val; | |
3356 | break; | |
3357 | } | |
3358 | } | |
3359 | } | |
3360 | ||
3361 | /* | |
8c2d6a9f | 3362 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3363 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3364 | */ | |
8c2d6a9f KM |
3365 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
3366 | if (of_get_property(np, prop, NULL)) | |
3367 | format |= SND_SOC_DAIFMT_CONT; | |
3368 | else | |
3369 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3370 | |
3371 | /* | |
3372 | * check "[prefix]bitclock-inversion" | |
3373 | * check "[prefix]frame-inversion" | |
3374 | * SND_SOC_DAIFMT_INV_MASK area | |
3375 | */ | |
3376 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3377 | bit = !!of_get_property(np, prop, NULL); | |
3378 | ||
3379 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3380 | frame = !!of_get_property(np, prop, NULL); | |
3381 | ||
3382 | switch ((bit << 4) + frame) { | |
3383 | case 0x11: | |
3384 | format |= SND_SOC_DAIFMT_IB_IF; | |
3385 | break; | |
3386 | case 0x10: | |
3387 | format |= SND_SOC_DAIFMT_IB_NF; | |
3388 | break; | |
3389 | case 0x01: | |
3390 | format |= SND_SOC_DAIFMT_NB_IF; | |
3391 | break; | |
3392 | default: | |
3393 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
3394 | break; | |
3395 | } | |
3396 | ||
3397 | /* | |
3398 | * check "[prefix]bitclock-master" | |
3399 | * check "[prefix]frame-master" | |
3400 | * SND_SOC_DAIFMT_MASTER_MASK area | |
3401 | */ | |
3402 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
3403 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3404 | if (bit && bitclkmaster) |
3405 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3406 | |
3407 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
3408 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3409 | if (frame && framemaster) |
3410 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3411 | |
3412 | switch ((bit << 4) + frame) { | |
3413 | case 0x11: | |
3414 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
3415 | break; | |
3416 | case 0x10: | |
3417 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
3418 | break; | |
3419 | case 0x01: | |
3420 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
3421 | break; | |
3422 | default: | |
3423 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
3424 | break; | |
3425 | } | |
3426 | ||
3427 | return format; | |
3428 | } | |
3429 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
3430 | ||
93b0f3ee JFM |
3431 | static int snd_soc_get_dai_name(struct of_phandle_args *args, |
3432 | const char **dai_name) | |
cb470087 KM |
3433 | { |
3434 | struct snd_soc_component *pos; | |
93b0f3ee | 3435 | int ret = -EPROBE_DEFER; |
cb470087 KM |
3436 | |
3437 | mutex_lock(&client_mutex); | |
3438 | list_for_each_entry(pos, &component_list, list) { | |
93b0f3ee | 3439 | if (pos->dev->of_node != args->np) |
cb470087 KM |
3440 | continue; |
3441 | ||
6833c452 | 3442 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
3443 | ret = pos->driver->of_xlate_dai_name(pos, |
3444 | args, | |
3445 | dai_name); | |
6833c452 KM |
3446 | } else { |
3447 | int id = -1; | |
3448 | ||
93b0f3ee | 3449 | switch (args->args_count) { |
6833c452 KM |
3450 | case 0: |
3451 | id = 0; /* same as dai_drv[0] */ | |
3452 | break; | |
3453 | case 1: | |
93b0f3ee | 3454 | id = args->args[0]; |
6833c452 KM |
3455 | break; |
3456 | default: | |
3457 | /* not supported */ | |
3458 | break; | |
3459 | } | |
3460 | ||
3461 | if (id < 0 || id >= pos->num_dai) { | |
3462 | ret = -EINVAL; | |
3dcba280 | 3463 | continue; |
6833c452 | 3464 | } |
e41975ed XL |
3465 | |
3466 | ret = 0; | |
3467 | ||
3468 | *dai_name = pos->dai_drv[id].name; | |
3469 | if (!*dai_name) | |
3470 | *dai_name = pos->name; | |
cb470087 KM |
3471 | } |
3472 | ||
cb470087 KM |
3473 | break; |
3474 | } | |
3475 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3476 | return ret; |
3477 | } | |
3478 | ||
3479 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3480 | const char **dai_name) | |
3481 | { | |
3482 | struct of_phandle_args args; | |
3483 | int ret; | |
3484 | ||
3485 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3486 | "#sound-dai-cells", 0, &args); | |
3487 | if (ret) | |
3488 | return ret; | |
3489 | ||
3490 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3491 | |
3492 | of_node_put(args.np); | |
3493 | ||
3494 | return ret; | |
3495 | } | |
3496 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3497 | ||
93b0f3ee JFM |
3498 | /* |
3499 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3500 | * @dev: Card device | |
3501 | * @of_node: Device node | |
3502 | * @dai_link: DAI link | |
3503 | * | |
3504 | * Builds an array of CODEC DAI components from the DAI link property | |
3505 | * 'sound-dai'. | |
3506 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
3507 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
3508 | * | |
3509 | * Returns 0 for success | |
3510 | */ | |
3511 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3512 | struct device_node *of_node, | |
3513 | struct snd_soc_dai_link *dai_link) | |
3514 | { | |
3515 | struct of_phandle_args args; | |
3516 | struct snd_soc_dai_link_component *component; | |
3517 | char *name; | |
3518 | int index, num_codecs, ret; | |
3519 | ||
3520 | /* Count the number of CODECs */ | |
3521 | name = "sound-dai"; | |
3522 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3523 | "#sound-dai-cells"); | |
3524 | if (num_codecs <= 0) { | |
3525 | if (num_codecs == -ENOENT) | |
3526 | dev_err(dev, "No 'sound-dai' property\n"); | |
3527 | else | |
3528 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3529 | return num_codecs; | |
3530 | } | |
3531 | component = devm_kzalloc(dev, | |
3532 | sizeof *component * num_codecs, | |
3533 | GFP_KERNEL); | |
3534 | if (!component) | |
3535 | return -ENOMEM; | |
3536 | dai_link->codecs = component; | |
3537 | dai_link->num_codecs = num_codecs; | |
3538 | ||
3539 | /* Parse the list */ | |
3540 | for (index = 0, component = dai_link->codecs; | |
3541 | index < dai_link->num_codecs; | |
3542 | index++, component++) { | |
3543 | ret = of_parse_phandle_with_args(of_node, name, | |
3544 | "#sound-dai-cells", | |
3545 | index, &args); | |
3546 | if (ret) | |
3547 | goto err; | |
3548 | component->of_node = args.np; | |
3549 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3550 | if (ret < 0) | |
3551 | goto err; | |
3552 | } | |
3553 | return 0; | |
3554 | err: | |
3555 | for (index = 0, component = dai_link->codecs; | |
3556 | index < dai_link->num_codecs; | |
3557 | index++, component++) { | |
3558 | if (!component->of_node) | |
3559 | break; | |
3560 | of_node_put(component->of_node); | |
3561 | component->of_node = NULL; | |
3562 | } | |
3563 | dai_link->codecs = NULL; | |
3564 | dai_link->num_codecs = 0; | |
3565 | return ret; | |
3566 | } | |
3567 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3568 | ||
c9b3a40f | 3569 | static int __init snd_soc_init(void) |
db2a4165 | 3570 | { |
384c89e2 | 3571 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3572 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3573 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
0837fc62 | 3574 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
8a9dab1a | 3575 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3576 | } |
c3c5a19a | 3577 | |
8a9dab1a | 3578 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3579 | &codec_list_fops)) |
3580 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3581 | ||
8a9dab1a | 3582 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3583 | &dai_list_fops)) |
3584 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3585 | |
8a9dab1a | 3586 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3587 | &platform_list_fops)) |
3588 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3589 | #endif |
3590 | ||
fb257897 MB |
3591 | snd_soc_util_init(); |
3592 | ||
db2a4165 FM |
3593 | return platform_driver_register(&soc_driver); |
3594 | } | |
4abe8e16 | 3595 | module_init(snd_soc_init); |
db2a4165 | 3596 | |
7d8c16a6 | 3597 | static void __exit snd_soc_exit(void) |
db2a4165 | 3598 | { |
fb257897 MB |
3599 | snd_soc_util_exit(); |
3600 | ||
384c89e2 | 3601 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3602 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3603 | #endif |
3ff3f64b | 3604 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3605 | } |
db2a4165 FM |
3606 | module_exit(snd_soc_exit); |
3607 | ||
3608 | /* Module information */ | |
d331124d | 3609 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3610 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3611 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3612 | MODULE_ALIAS("platform:soc-audio"); |