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 | ||
34e81ab4 LPC |
350 | mutex_lock(&client_mutex); |
351 | ||
2b194f9d MB |
352 | list_for_each_entry(codec, &codec_list, list) { |
353 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 354 | codec->component.name); |
2b194f9d MB |
355 | if (len >= 0) |
356 | ret += len; | |
357 | if (ret > PAGE_SIZE) { | |
358 | ret = PAGE_SIZE; | |
359 | break; | |
360 | } | |
361 | } | |
c3c5a19a | 362 | |
34e81ab4 LPC |
363 | mutex_unlock(&client_mutex); |
364 | ||
c3c5a19a MB |
365 | if (ret >= 0) |
366 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
367 | ||
368 | kfree(buf); | |
369 | ||
370 | return ret; | |
371 | } | |
372 | ||
373 | static const struct file_operations codec_list_fops = { | |
374 | .read = codec_list_read_file, | |
375 | .llseek = default_llseek,/* read accesses f_pos */ | |
376 | }; | |
377 | ||
f3208780 MB |
378 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
379 | size_t count, loff_t *ppos) | |
380 | { | |
381 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 382 | ssize_t len, ret = 0; |
1438c2f6 | 383 | struct snd_soc_component *component; |
f3208780 MB |
384 | struct snd_soc_dai *dai; |
385 | ||
386 | if (!buf) | |
387 | return -ENOMEM; | |
388 | ||
34e81ab4 LPC |
389 | mutex_lock(&client_mutex); |
390 | ||
1438c2f6 LPC |
391 | list_for_each_entry(component, &component_list, list) { |
392 | list_for_each_entry(dai, &component->dai_list, list) { | |
393 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
394 | dai->name); | |
395 | if (len >= 0) | |
396 | ret += len; | |
397 | if (ret > PAGE_SIZE) { | |
398 | ret = PAGE_SIZE; | |
399 | break; | |
400 | } | |
2b194f9d MB |
401 | } |
402 | } | |
f3208780 | 403 | |
34e81ab4 LPC |
404 | mutex_unlock(&client_mutex); |
405 | ||
2b194f9d | 406 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
407 | |
408 | kfree(buf); | |
409 | ||
410 | return ret; | |
411 | } | |
412 | ||
413 | static const struct file_operations dai_list_fops = { | |
414 | .read = dai_list_read_file, | |
415 | .llseek = default_llseek,/* read accesses f_pos */ | |
416 | }; | |
417 | ||
19c7ac27 MB |
418 | static ssize_t platform_list_read_file(struct file *file, |
419 | char __user *user_buf, | |
420 | size_t count, loff_t *ppos) | |
421 | { | |
422 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 423 | ssize_t len, ret = 0; |
19c7ac27 MB |
424 | struct snd_soc_platform *platform; |
425 | ||
426 | if (!buf) | |
427 | return -ENOMEM; | |
428 | ||
34e81ab4 LPC |
429 | mutex_lock(&client_mutex); |
430 | ||
2b194f9d MB |
431 | list_for_each_entry(platform, &platform_list, list) { |
432 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 433 | platform->component.name); |
2b194f9d MB |
434 | if (len >= 0) |
435 | ret += len; | |
436 | if (ret > PAGE_SIZE) { | |
437 | ret = PAGE_SIZE; | |
438 | break; | |
439 | } | |
440 | } | |
19c7ac27 | 441 | |
34e81ab4 LPC |
442 | mutex_unlock(&client_mutex); |
443 | ||
2b194f9d | 444 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
445 | |
446 | kfree(buf); | |
447 | ||
448 | return ret; | |
449 | } | |
450 | ||
451 | static const struct file_operations platform_list_fops = { | |
452 | .read = platform_list_read_file, | |
453 | .llseek = default_llseek,/* read accesses f_pos */ | |
454 | }; | |
455 | ||
a6052154 JN |
456 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
457 | { | |
458 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 459 | snd_soc_debugfs_root); |
3a45b867 | 460 | if (!card->debugfs_card_root) { |
a6052154 | 461 | dev_warn(card->dev, |
7c08be84 | 462 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
463 | return; |
464 | } | |
465 | ||
466 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
467 | card->debugfs_card_root, | |
468 | &card->pop_time); | |
469 | if (!card->debugfs_pop_time) | |
470 | dev_warn(card->dev, | |
f110bfc7 | 471 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
472 | } |
473 | ||
474 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
475 | { | |
476 | debugfs_remove_recursive(card->debugfs_card_root); | |
477 | } | |
478 | ||
2624d5fa MB |
479 | #else |
480 | ||
81c7cfd1 | 481 | #define soc_init_codec_debugfs NULL |
b95fccbc | 482 | |
81c7cfd1 LPC |
483 | static inline void soc_init_component_debugfs( |
484 | struct snd_soc_component *component) | |
731f1ab2 SG |
485 | { |
486 | } | |
487 | ||
81c7cfd1 LPC |
488 | static inline void soc_cleanup_component_debugfs( |
489 | struct snd_soc_component *component) | |
731f1ab2 SG |
490 | { |
491 | } | |
492 | ||
b95fccbc AL |
493 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
494 | { | |
495 | } | |
496 | ||
497 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
498 | { | |
499 | } | |
2624d5fa MB |
500 | #endif |
501 | ||
47c88fff LG |
502 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
503 | const char *dai_link, int stream) | |
504 | { | |
505 | int i; | |
506 | ||
507 | for (i = 0; i < card->num_links; i++) { | |
508 | if (card->rtd[i].dai_link->no_pcm && | |
509 | !strcmp(card->rtd[i].dai_link->name, dai_link)) | |
510 | return card->rtd[i].pcm->streams[stream].substream; | |
511 | } | |
f110bfc7 | 512 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
513 | return NULL; |
514 | } | |
515 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
516 | ||
517 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, | |
518 | const char *dai_link) | |
519 | { | |
520 | int i; | |
521 | ||
522 | for (i = 0; i < card->num_links; i++) { | |
523 | if (!strcmp(card->rtd[i].dai_link->name, dai_link)) | |
524 | return &card->rtd[i]; | |
525 | } | |
f110bfc7 | 526 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
527 | return NULL; |
528 | } | |
529 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
530 | ||
9d58a077 RF |
531 | static void codec2codec_close_delayed_work(struct work_struct *work) |
532 | { | |
533 | /* Currently nothing to do for c2c links | |
534 | * Since c2c links are internal nodes in the DAPM graph and | |
535 | * don't interface with the outside world or application layer | |
536 | * we don't have to do any special handling on close. | |
537 | */ | |
538 | } | |
539 | ||
6f8ab4ac | 540 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 541 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 542 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 543 | { |
6f8ab4ac | 544 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 545 | struct snd_soc_codec *codec; |
88bd870f | 546 | int i, j; |
db2a4165 | 547 | |
c5599b87 LPC |
548 | /* If the card is not initialized yet there is nothing to do */ |
549 | if (!card->instantiated) | |
e3509ff0 DM |
550 | return 0; |
551 | ||
6ed25978 AG |
552 | /* Due to the resume being scheduled into a workqueue we could |
553 | * suspend before that's finished - wait for it to complete. | |
554 | */ | |
f0fba2ad LG |
555 | snd_power_lock(card->snd_card); |
556 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
557 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
558 | |
559 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 560 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 561 | |
a00f90f9 | 562 | /* mute any active DACs */ |
f0fba2ad | 563 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 564 | |
f0fba2ad | 565 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
566 | continue; |
567 | ||
88bd870f BC |
568 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
569 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
570 | struct snd_soc_dai_driver *drv = dai->driver; | |
571 | ||
572 | if (drv->ops->digital_mute && dai->playback_active) | |
573 | drv->ops->digital_mute(dai, 1); | |
574 | } | |
db2a4165 FM |
575 | } |
576 | ||
4ccab3e7 | 577 | /* suspend all pcms */ |
f0fba2ad LG |
578 | for (i = 0; i < card->num_rtd; i++) { |
579 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
580 | continue; |
581 | ||
f0fba2ad | 582 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 583 | } |
4ccab3e7 | 584 | |
87506549 | 585 | if (card->suspend_pre) |
70b2ac12 | 586 | card->suspend_pre(card); |
db2a4165 | 587 | |
f0fba2ad LG |
588 | for (i = 0; i < card->num_rtd; i++) { |
589 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 590 | |
f0fba2ad | 591 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
592 | continue; |
593 | ||
bc263214 | 594 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 595 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
596 | } |
597 | ||
598 | /* close any waiting streams and save state */ | |
f0fba2ad | 599 | for (i = 0; i < card->num_rtd; i++) { |
88bd870f | 600 | struct snd_soc_dai **codec_dais = card->rtd[i].codec_dais; |
43829731 | 601 | flush_delayed_work(&card->rtd[i].delayed_work); |
88bd870f BC |
602 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
603 | codec_dais[j]->codec->dapm.suspend_bias_level = | |
604 | codec_dais[j]->codec->dapm.bias_level; | |
605 | } | |
f0fba2ad | 606 | } |
db2a4165 | 607 | |
f0fba2ad | 608 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 609 | |
f0fba2ad | 610 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
611 | continue; |
612 | ||
7bd3a6f3 MB |
613 | snd_soc_dapm_stream_event(&card->rtd[i], |
614 | SNDRV_PCM_STREAM_PLAYBACK, | |
7bd3a6f3 | 615 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 616 | |
7bd3a6f3 MB |
617 | snd_soc_dapm_stream_event(&card->rtd[i], |
618 | SNDRV_PCM_STREAM_CAPTURE, | |
7bd3a6f3 | 619 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
620 | } |
621 | ||
8be4da29 LPC |
622 | /* Recheck all endpoints too, their state is affected by suspend */ |
623 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
624 | snd_soc_dapm_sync(&card->dapm); |
625 | ||
f0fba2ad | 626 | /* suspend all CODECs */ |
2eea392d | 627 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
628 | /* If there are paths active then the CODEC will be held with |
629 | * bias _ON and should not be suspended. */ | |
a8093297 | 630 | if (!codec->suspended) { |
ce6120cc | 631 | switch (codec->dapm.bias_level) { |
f0fba2ad | 632 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
633 | /* |
634 | * If the CODEC is capable of idle | |
635 | * bias off then being in STANDBY | |
636 | * means it's doing something, | |
637 | * otherwise fall through. | |
638 | */ | |
639 | if (codec->dapm.idle_bias_off) { | |
640 | dev_dbg(codec->dev, | |
10e8aa9a | 641 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
642 | break; |
643 | } | |
a8093297 | 644 | |
f0fba2ad | 645 | case SND_SOC_BIAS_OFF: |
a8093297 LPC |
646 | if (codec->driver->suspend) |
647 | codec->driver->suspend(codec); | |
f0fba2ad | 648 | codec->suspended = 1; |
e2c330b9 LPC |
649 | if (codec->component.regmap) |
650 | regcache_mark_dirty(codec->component.regmap); | |
988e8cc4 NC |
651 | /* deactivate pins to sleep state */ |
652 | pinctrl_pm_select_sleep_state(codec->dev); | |
f0fba2ad LG |
653 | break; |
654 | default: | |
10e8aa9a MM |
655 | dev_dbg(codec->dev, |
656 | "ASoC: CODEC is on over suspend\n"); | |
f0fba2ad LG |
657 | break; |
658 | } | |
1547aba9 MB |
659 | } |
660 | } | |
db2a4165 | 661 | |
f0fba2ad LG |
662 | for (i = 0; i < card->num_rtd; i++) { |
663 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 664 | |
f0fba2ad | 665 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
666 | continue; |
667 | ||
bc263214 | 668 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 669 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
670 | |
671 | /* deactivate pins to sleep state */ | |
672 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
673 | } |
674 | ||
87506549 | 675 | if (card->suspend_post) |
70b2ac12 | 676 | card->suspend_post(card); |
db2a4165 FM |
677 | |
678 | return 0; | |
679 | } | |
6f8ab4ac | 680 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 681 | |
6ed25978 AG |
682 | /* deferred resume work, so resume can complete before we finished |
683 | * setting our codec back up, which can be very slow on I2C | |
684 | */ | |
685 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 686 | { |
f0fba2ad LG |
687 | struct snd_soc_card *card = |
688 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 689 | struct snd_soc_codec *codec; |
88bd870f | 690 | int i, j; |
db2a4165 | 691 | |
6ed25978 AG |
692 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
693 | * so userspace apps are blocked from touching us | |
694 | */ | |
695 | ||
f110bfc7 | 696 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 697 | |
9949788b | 698 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 699 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 700 | |
87506549 | 701 | if (card->resume_pre) |
70b2ac12 | 702 | card->resume_pre(card); |
db2a4165 | 703 | |
bc263214 | 704 | /* resume control bus DAIs */ |
f0fba2ad LG |
705 | for (i = 0; i < card->num_rtd; i++) { |
706 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 707 | |
f0fba2ad | 708 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
709 | continue; |
710 | ||
bc263214 | 711 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
712 | cpu_dai->driver->resume(cpu_dai); |
713 | } | |
714 | ||
2eea392d | 715 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
716 | /* If the CODEC was idle over suspend then it will have been |
717 | * left with bias OFF or STANDBY and suspended so we must now | |
718 | * resume. Otherwise the suspend was suppressed. | |
719 | */ | |
a8093297 | 720 | if (codec->suspended) { |
ce6120cc | 721 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
722 | case SND_SOC_BIAS_STANDBY: |
723 | case SND_SOC_BIAS_OFF: | |
a8093297 LPC |
724 | if (codec->driver->resume) |
725 | codec->driver->resume(codec); | |
f0fba2ad LG |
726 | codec->suspended = 0; |
727 | break; | |
728 | default: | |
10e8aa9a MM |
729 | dev_dbg(codec->dev, |
730 | "ASoC: CODEC was on over suspend\n"); | |
f0fba2ad LG |
731 | break; |
732 | } | |
1547aba9 MB |
733 | } |
734 | } | |
db2a4165 | 735 | |
f0fba2ad | 736 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 737 | |
f0fba2ad | 738 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
739 | continue; |
740 | ||
7bd3a6f3 | 741 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 742 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 743 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 744 | |
7bd3a6f3 | 745 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 746 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 747 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
748 | } |
749 | ||
3ff3f64b | 750 | /* unmute any active DACs */ |
f0fba2ad | 751 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 752 | |
f0fba2ad | 753 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
754 | continue; |
755 | ||
88bd870f BC |
756 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
757 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
758 | struct snd_soc_dai_driver *drv = dai->driver; | |
759 | ||
760 | if (drv->ops->digital_mute && dai->playback_active) | |
761 | drv->ops->digital_mute(dai, 0); | |
762 | } | |
db2a4165 FM |
763 | } |
764 | ||
f0fba2ad LG |
765 | for (i = 0; i < card->num_rtd; i++) { |
766 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 767 | |
f0fba2ad | 768 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
769 | continue; |
770 | ||
bc263214 | 771 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 772 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
773 | } |
774 | ||
87506549 | 775 | if (card->resume_post) |
70b2ac12 | 776 | card->resume_post(card); |
db2a4165 | 777 | |
f110bfc7 | 778 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 AG |
779 | |
780 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 781 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
e2d32ff6 | 782 | |
8be4da29 LPC |
783 | /* Recheck all endpoints too, their state is affected by suspend */ |
784 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 785 | snd_soc_dapm_sync(&card->dapm); |
6ed25978 AG |
786 | } |
787 | ||
788 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 789 | int snd_soc_resume(struct device *dev) |
6ed25978 | 790 | { |
6f8ab4ac | 791 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 LPC |
792 | bool bus_control = false; |
793 | int i; | |
b9dd94a8 | 794 | |
c5599b87 LPC |
795 | /* If the card is not initialized yet there is nothing to do */ |
796 | if (!card->instantiated) | |
5ff1ddf2 EM |
797 | return 0; |
798 | ||
988e8cc4 NC |
799 | /* activate pins from sleep state */ |
800 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
801 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
802 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
803 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
804 | int j; | |
805 | ||
988e8cc4 NC |
806 | if (cpu_dai->active) |
807 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
808 | |
809 | for (j = 0; j < rtd->num_codecs; j++) { | |
810 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
811 | if (codec_dai->active) | |
812 | pinctrl_pm_select_default_state(codec_dai->dev); | |
813 | } | |
988e8cc4 NC |
814 | } |
815 | ||
bc263214 LPC |
816 | /* |
817 | * DAIs that also act as the control bus master might have other drivers | |
818 | * hanging off them so need to resume immediately. Other drivers don't | |
819 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
820 | * due to I/O costs and anti-pop so handle them out of line. |
821 | */ | |
f0fba2ad LG |
822 | for (i = 0; i < card->num_rtd; i++) { |
823 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
bc263214 | 824 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 825 | } |
bc263214 LPC |
826 | if (bus_control) { |
827 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
828 | soc_resume_deferred(&card->deferred_resume_work); |
829 | } else { | |
f110bfc7 | 830 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 831 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 832 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 833 | } |
6ed25978 | 834 | |
db2a4165 FM |
835 | return 0; |
836 | } | |
6f8ab4ac | 837 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 838 | #else |
6f8ab4ac MB |
839 | #define snd_soc_suspend NULL |
840 | #define snd_soc_resume NULL | |
db2a4165 FM |
841 | #endif |
842 | ||
85e7652d | 843 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
844 | }; |
845 | ||
65d9361f LPC |
846 | static struct snd_soc_component *soc_find_component( |
847 | const struct device_node *of_node, const char *name) | |
12023a9a | 848 | { |
65d9361f | 849 | struct snd_soc_component *component; |
12023a9a | 850 | |
34e81ab4 LPC |
851 | lockdep_assert_held(&client_mutex); |
852 | ||
65d9361f LPC |
853 | list_for_each_entry(component, &component_list, list) { |
854 | if (of_node) { | |
855 | if (component->dev->of_node == of_node) | |
856 | return component; | |
857 | } else if (strcmp(component->name, name) == 0) { | |
858 | return component; | |
12023a9a | 859 | } |
12023a9a MLC |
860 | } |
861 | ||
862 | return NULL; | |
863 | } | |
864 | ||
14621c7e LPC |
865 | static struct snd_soc_dai *snd_soc_find_dai( |
866 | const struct snd_soc_dai_link_component *dlc) | |
12023a9a | 867 | { |
14621c7e LPC |
868 | struct snd_soc_component *component; |
869 | struct snd_soc_dai *dai; | |
12023a9a | 870 | |
34e81ab4 LPC |
871 | lockdep_assert_held(&client_mutex); |
872 | ||
14621c7e LPC |
873 | /* Find CPU DAI from registered DAIs*/ |
874 | list_for_each_entry(component, &component_list, list) { | |
875 | if (dlc->of_node && component->dev->of_node != dlc->of_node) | |
876 | continue; | |
1ffae361 | 877 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
878 | continue; |
879 | list_for_each_entry(dai, &component->dai_list, list) { | |
880 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 881 | continue; |
12023a9a | 882 | |
14621c7e | 883 | return dai; |
12023a9a MLC |
884 | } |
885 | } | |
886 | ||
887 | return NULL; | |
888 | } | |
889 | ||
f0fba2ad | 890 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 891 | { |
f0fba2ad LG |
892 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
893 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
88bd870f | 894 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 895 | struct snd_soc_dai_link_component cpu_dai_component; |
88bd870f | 896 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
435c5e25 | 897 | struct snd_soc_platform *platform; |
848dd8be | 898 | const char *platform_name; |
88bd870f | 899 | int i; |
435c5e25 | 900 | |
f110bfc7 | 901 | dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); |
435c5e25 | 902 | |
14621c7e LPC |
903 | cpu_dai_component.name = dai_link->cpu_name; |
904 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
905 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
906 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 907 | if (!rtd->cpu_dai) { |
f110bfc7 | 908 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b MB |
909 | dai_link->cpu_dai_name); |
910 | return -EPROBE_DEFER; | |
f0fba2ad LG |
911 | } |
912 | ||
88bd870f | 913 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 914 | |
88bd870f BC |
915 | /* Find CODEC from registered CODECs */ |
916 | for (i = 0; i < rtd->num_codecs; i++) { | |
14621c7e | 917 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
918 | if (!codec_dais[i]) { |
919 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
920 | codecs[i].dai_name); | |
921 | return -EPROBE_DEFER; | |
922 | } | |
12023a9a MLC |
923 | } |
924 | ||
88bd870f BC |
925 | /* Single codec links expect codec and codec_dai in runtime data */ |
926 | rtd->codec_dai = codec_dais[0]; | |
927 | rtd->codec = rtd->codec_dai->codec; | |
928 | ||
848dd8be MB |
929 | /* if there's no platform we match on the empty platform */ |
930 | platform_name = dai_link->platform_name; | |
5a504963 | 931 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
932 | platform_name = "snd-soc-dummy"; |
933 | ||
b19e6e7b | 934 | /* find one from the set of registered platforms */ |
f0fba2ad | 935 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
936 | if (dai_link->platform_of_node) { |
937 | if (platform->dev->of_node != | |
938 | dai_link->platform_of_node) | |
939 | continue; | |
940 | } else { | |
f4333203 | 941 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
942 | continue; |
943 | } | |
2610ab77 SW |
944 | |
945 | rtd->platform = platform; | |
02a06d30 | 946 | } |
b19e6e7b | 947 | if (!rtd->platform) { |
f110bfc7 | 948 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 949 | dai_link->platform_name); |
b19e6e7b | 950 | return -EPROBE_DEFER; |
f0fba2ad | 951 | } |
b19e6e7b MB |
952 | |
953 | card->num_rtd++; | |
954 | ||
955 | return 0; | |
f0fba2ad LG |
956 | } |
957 | ||
f1d45cc3 | 958 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 959 | { |
70090bbb LPC |
960 | if (!component->probed) |
961 | return; | |
d12cd198 | 962 | |
f1d45cc3 LPC |
963 | /* This is a HACK and will be removed soon */ |
964 | if (component->codec) | |
965 | list_del(&component->codec->card_list); | |
589c3563 | 966 | |
f1d45cc3 LPC |
967 | if (component->remove) |
968 | component->remove(component); | |
589c3563 | 969 | |
f1d45cc3 | 970 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 971 | |
f1d45cc3 LPC |
972 | soc_cleanup_component_debugfs(component); |
973 | component->probed = 0; | |
974 | module_put(component->dev->driver->owner); | |
589c3563 JN |
975 | } |
976 | ||
e60cd14f | 977 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 978 | { |
f0fba2ad LG |
979 | int err; |
980 | ||
e60cd14f LPC |
981 | if (dai && dai->probed && |
982 | dai->driver->remove_order == order) { | |
983 | if (dai->driver->remove) { | |
984 | err = dai->driver->remove(dai); | |
f0fba2ad | 985 | if (err < 0) |
e60cd14f | 986 | dev_err(dai->dev, |
f110bfc7 | 987 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 988 | dai->name, err); |
6b05eda6 | 989 | } |
e60cd14f | 990 | dai->probed = 0; |
f0fba2ad | 991 | } |
b0aa88af MLC |
992 | } |
993 | ||
994 | static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) | |
995 | { | |
996 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
e60cd14f | 997 | int i; |
b0aa88af MLC |
998 | |
999 | /* unregister the rtd device */ | |
1000 | if (rtd->dev_registered) { | |
b0aa88af MLC |
1001 | device_unregister(rtd->dev); |
1002 | rtd->dev_registered = 0; | |
1003 | } | |
1004 | ||
1005 | /* remove the CODEC DAI */ | |
88bd870f | 1006 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 1007 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 1008 | |
e60cd14f | 1009 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 1010 | } |
db2a4165 | 1011 | |
62ae68fa SW |
1012 | static void soc_remove_link_components(struct snd_soc_card *card, int num, |
1013 | int order) | |
1014 | { | |
1015 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1016 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
62ae68fa | 1017 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1018 | struct snd_soc_component *component; |
88bd870f | 1019 | int i; |
62ae68fa SW |
1020 | |
1021 | /* remove the platform */ | |
70090bbb | 1022 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1023 | soc_remove_component(&platform->component); |
62ae68fa SW |
1024 | |
1025 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1026 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1027 | component = rtd->codec_dais[i]->component; |
70090bbb | 1028 | if (component->driver->remove_order == order) |
61aca564 | 1029 | soc_remove_component(component); |
62ae68fa SW |
1030 | } |
1031 | ||
1032 | /* remove any CPU-side CODEC */ | |
1033 | if (cpu_dai) { | |
70090bbb | 1034 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1035 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1036 | } |
1037 | } | |
1038 | ||
0671fd8e KM |
1039 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1040 | { | |
0168bf0d | 1041 | int dai, order; |
0671fd8e | 1042 | |
0168bf0d LG |
1043 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1044 | order++) { | |
1045 | for (dai = 0; dai < card->num_rtd; dai++) | |
62ae68fa SW |
1046 | soc_remove_link_dais(card, dai, order); |
1047 | } | |
1048 | ||
1049 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1050 | order++) { | |
1051 | for (dai = 0; dai < card->num_rtd; dai++) | |
1052 | soc_remove_link_components(card, dai, order); | |
0168bf0d | 1053 | } |
62ae68fa | 1054 | |
0671fd8e KM |
1055 | card->num_rtd = 0; |
1056 | } | |
1057 | ||
ead9b919 | 1058 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1059 | struct snd_soc_component *component) |
ead9b919 JN |
1060 | { |
1061 | int i; | |
1062 | ||
ff819b83 | 1063 | if (card->codec_conf == NULL) |
ead9b919 JN |
1064 | return; |
1065 | ||
ff819b83 DP |
1066 | for (i = 0; i < card->num_configs; i++) { |
1067 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1068 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1069 | continue; |
94f99c87 | 1070 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1071 | continue; |
94f99c87 | 1072 | component->name_prefix = map->name_prefix; |
3ca041ed | 1073 | break; |
ead9b919 JN |
1074 | } |
1075 | } | |
1076 | ||
f1d45cc3 LPC |
1077 | static int soc_probe_component(struct snd_soc_card *card, |
1078 | struct snd_soc_component *component) | |
589c3563 | 1079 | { |
f1d45cc3 | 1080 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1081 | struct snd_soc_dai *dai; |
f1d45cc3 | 1082 | int ret; |
589c3563 | 1083 | |
70090bbb LPC |
1084 | if (component->probed) |
1085 | return 0; | |
589c3563 | 1086 | |
f1d45cc3 LPC |
1087 | component->card = card; |
1088 | dapm->card = card; | |
1089 | soc_set_name_prefix(card, component); | |
589c3563 | 1090 | |
f1d45cc3 | 1091 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1092 | return -ENODEV; |
1093 | ||
f1d45cc3 | 1094 | soc_init_component_debugfs(component); |
d5d1e0be | 1095 | |
f1d45cc3 LPC |
1096 | if (component->dapm_widgets) { |
1097 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1098 | component->num_dapm_widgets); | |
b318ad50 NP |
1099 | |
1100 | if (ret != 0) { | |
f1d45cc3 | 1101 | dev_err(component->dev, |
b318ad50 NP |
1102 | "Failed to create new controls %d\n", ret); |
1103 | goto err_probe; | |
1104 | } | |
1105 | } | |
77530150 | 1106 | |
0634814f LPC |
1107 | list_for_each_entry(dai, &component->dai_list, list) { |
1108 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1109 | if (ret != 0) { |
0634814f | 1110 | dev_err(component->dev, |
261edc70 NP |
1111 | "Failed to create DAI widgets %d\n", ret); |
1112 | goto err_probe; | |
1113 | } | |
1114 | } | |
888df395 | 1115 | |
f1d45cc3 LPC |
1116 | if (component->probe) { |
1117 | ret = component->probe(component); | |
589c3563 | 1118 | if (ret < 0) { |
f1d45cc3 LPC |
1119 | dev_err(component->dev, |
1120 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1121 | goto err_probe; |
589c3563 | 1122 | } |
cb2cf612 | 1123 | |
f1d45cc3 LPC |
1124 | WARN(dapm->idle_bias_off && |
1125 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1126 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1127 | component->name); | |
be09ad90 LG |
1128 | } |
1129 | ||
f1d45cc3 LPC |
1130 | if (component->controls) |
1131 | snd_soc_add_component_controls(component, component->controls, | |
1132 | component->num_controls); | |
1133 | if (component->dapm_routes) | |
1134 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1135 | component->num_dapm_routes); | |
3fec6b6d | 1136 | |
f1d45cc3 LPC |
1137 | component->probed = 1; |
1138 | list_add(&dapm->list, &card->dapm_list); | |
cb2cf612 | 1139 | |
f1d45cc3 LPC |
1140 | /* This is a HACK and will be removed soon */ |
1141 | if (component->codec) | |
1142 | list_add(&component->codec->card_list, &card->codec_dev_list); | |
956245e9 LG |
1143 | |
1144 | return 0; | |
1145 | ||
1146 | err_probe: | |
f1d45cc3 LPC |
1147 | soc_cleanup_component_debugfs(component); |
1148 | module_put(component->dev->driver->owner); | |
956245e9 LG |
1149 | |
1150 | return ret; | |
1151 | } | |
1152 | ||
36ae1a96 MB |
1153 | static void rtd_release(struct device *dev) |
1154 | { | |
1155 | kfree(dev); | |
1156 | } | |
f0fba2ad | 1157 | |
5f3484ac LPC |
1158 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1159 | const char *name) | |
503ae5e0 | 1160 | { |
589c3563 JN |
1161 | int ret = 0; |
1162 | ||
589c3563 | 1163 | /* register the rtd device */ |
36ae1a96 MB |
1164 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1165 | if (!rtd->dev) | |
1166 | return -ENOMEM; | |
1167 | device_initialize(rtd->dev); | |
5f3484ac | 1168 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1169 | rtd->dev->release = rtd_release; |
d29697dc | 1170 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1171 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1172 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1173 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1174 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1175 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1176 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1177 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1178 | ret = device_add(rtd->dev); |
589c3563 | 1179 | if (ret < 0) { |
865df9cb CL |
1180 | /* calling put_device() here to free the rtd->dev */ |
1181 | put_device(rtd->dev); | |
5f3484ac | 1182 | dev_err(rtd->card->dev, |
f110bfc7 | 1183 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1184 | return ret; |
1185 | } | |
1186 | rtd->dev_registered = 1; | |
589c3563 JN |
1187 | return 0; |
1188 | } | |
1189 | ||
62ae68fa SW |
1190 | static int soc_probe_link_components(struct snd_soc_card *card, int num, |
1191 | int order) | |
1192 | { | |
1193 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
62ae68fa | 1194 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1195 | struct snd_soc_component *component; |
88bd870f | 1196 | int i, ret; |
62ae68fa SW |
1197 | |
1198 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1199 | component = rtd->cpu_dai->component; |
70090bbb | 1200 | if (component->driver->probe_order == order) { |
61aca564 | 1201 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1202 | if (ret < 0) |
1203 | return ret; | |
1204 | } | |
1205 | ||
88bd870f BC |
1206 | /* probe the CODEC-side components */ |
1207 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1208 | component = rtd->codec_dais[i]->component; |
70090bbb | 1209 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1210 | ret = soc_probe_component(card, component); |
88bd870f BC |
1211 | if (ret < 0) |
1212 | return ret; | |
1213 | } | |
62ae68fa SW |
1214 | } |
1215 | ||
1216 | /* probe the platform */ | |
70090bbb | 1217 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1218 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1219 | if (ret < 0) |
1220 | return ret; | |
1221 | } | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
8e2be562 | 1226 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1227 | { |
1228 | int ret; | |
1229 | ||
8e2be562 LPC |
1230 | if (!dai->probed && dai->driver->probe_order == order) { |
1231 | if (dai->driver->probe) { | |
1232 | ret = dai->driver->probe(dai); | |
b0aa88af | 1233 | if (ret < 0) { |
8e2be562 LPC |
1234 | dev_err(dai->dev, |
1235 | "ASoC: failed to probe DAI %s: %d\n", | |
1236 | dai->name, ret); | |
b0aa88af MLC |
1237 | return ret; |
1238 | } | |
1239 | } | |
1240 | ||
8e2be562 | 1241 | dai->probed = 1; |
b0aa88af MLC |
1242 | } |
1243 | ||
1244 | return 0; | |
1245 | } | |
1246 | ||
2436a723 MLC |
1247 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1248 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1249 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1250 | { |
3f901a02 BC |
1251 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1252 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2436a723 MLC |
1253 | struct snd_soc_dapm_widget *play_w, *capture_w; |
1254 | int ret; | |
1255 | ||
88bd870f BC |
1256 | if (rtd->num_codecs > 1) |
1257 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1258 | ||
2436a723 MLC |
1259 | /* link the DAI widgets */ |
1260 | play_w = codec_dai->playback_widget; | |
1261 | capture_w = cpu_dai->capture_widget; | |
1262 | if (play_w && capture_w) { | |
1263 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
1264 | capture_w, play_w); | |
1265 | if (ret != 0) { | |
1266 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1267 | play_w->name, capture_w->name, ret); | |
1268 | return ret; | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | play_w = cpu_dai->playback_widget; | |
1273 | capture_w = codec_dai->capture_widget; | |
1274 | if (play_w && capture_w) { | |
1275 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
1276 | capture_w, play_w); | |
1277 | if (ret != 0) { | |
1278 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1279 | play_w->name, capture_w->name, ret); | |
1280 | return ret; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | return 0; | |
1285 | } | |
1286 | ||
62ae68fa | 1287 | static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1288 | { |
1289 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1290 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
c74184ed | 1291 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1292 | int i, ret; |
f0fba2ad | 1293 | |
f110bfc7 | 1294 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
0168bf0d | 1295 | card->name, num, order); |
f0fba2ad | 1296 | |
f0fba2ad LG |
1297 | /* set default power off timeout */ |
1298 | rtd->pmdown_time = pmdown_time; | |
1299 | ||
8e2be562 LPC |
1300 | ret = soc_probe_dai(cpu_dai, order); |
1301 | if (ret) | |
1302 | return ret; | |
db2a4165 | 1303 | |
f0fba2ad | 1304 | /* probe the CODEC DAI */ |
88bd870f | 1305 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1306 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1307 | if (ret) |
1308 | return ret; | |
1309 | } | |
fe3e78e0 | 1310 | |
0168bf0d LG |
1311 | /* complete DAI probe during last probe */ |
1312 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1313 | return 0; | |
1314 | ||
5f3484ac LPC |
1315 | /* do machine specific initialization */ |
1316 | if (dai_link->init) { | |
1317 | ret = dai_link->init(rtd); | |
1318 | if (ret < 0) { | |
1319 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1320 | dai_link->name, ret); | |
1321 | return ret; | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | ret = soc_post_component_init(rtd, dai_link->name); | |
589c3563 | 1326 | if (ret) |
f0fba2ad | 1327 | return ret; |
fe3e78e0 | 1328 | |
5f3484ac LPC |
1329 | #ifdef CONFIG_DEBUG_FS |
1330 | /* add DPCM sysfs entries */ | |
1331 | if (dai_link->dynamic) { | |
1332 | ret = soc_dpcm_debugfs_add(rtd); | |
1333 | if (ret < 0) { | |
1334 | dev_err(rtd->dev, | |
1335 | "ASoC: failed to add dpcm sysfs entries: %d\n", | |
1336 | ret); | |
1337 | return ret; | |
1338 | } | |
1339 | } | |
1340 | #endif | |
1341 | ||
1245b700 NK |
1342 | if (cpu_dai->driver->compress_dai) { |
1343 | /*create compress_device"*/ | |
1344 | ret = soc_new_compress(rtd, num); | |
c74184ed | 1345 | if (ret < 0) { |
f110bfc7 | 1346 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1347 | dai_link->stream_name); |
c74184ed MB |
1348 | return ret; |
1349 | } | |
1350 | } else { | |
1245b700 NK |
1351 | |
1352 | if (!dai_link->params) { | |
1353 | /* create the pcm */ | |
1354 | ret = soc_new_pcm(rtd, num); | |
1355 | if (ret < 0) { | |
f110bfc7 | 1356 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1357 | dai_link->stream_name, ret); |
c74184ed MB |
1358 | return ret; |
1359 | } | |
1245b700 | 1360 | } else { |
9d58a077 RF |
1361 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1362 | codec2codec_close_delayed_work); | |
1363 | ||
1245b700 | 1364 | /* link the DAI widgets */ |
3f901a02 | 1365 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1366 | if (ret) |
1367 | return ret; | |
c74184ed | 1368 | } |
f0fba2ad LG |
1369 | } |
1370 | ||
f0fba2ad LG |
1371 | return 0; |
1372 | } | |
1373 | ||
44c69bb1 | 1374 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed | 1375 | { |
44c69bb1 | 1376 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
3ca041ed | 1377 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
65d9361f | 1378 | const char *name = aux_dev->codec_name; |
3ca041ed | 1379 | |
65d9361f LPC |
1380 | rtd->component = soc_find_component(aux_dev->codec_of_node, name); |
1381 | if (!rtd->component) { | |
3ca041ed | 1382 | if (aux_dev->codec_of_node) |
65d9361f | 1383 | name = of_node_full_name(aux_dev->codec_of_node); |
3ca041ed | 1384 | |
65d9361f | 1385 | dev_err(card->dev, "ASoC: %s not registered\n", name); |
3ca041ed SR |
1386 | return -EPROBE_DEFER; |
1387 | } | |
fb099cb7 | 1388 | |
65d9361f LPC |
1389 | /* |
1390 | * Some places still reference rtd->codec, so we have to keep that | |
1391 | * initialized if the component is a CODEC. Once all those references | |
1392 | * have been removed, this code can be removed as well. | |
1393 | */ | |
1394 | rtd->codec = rtd->component->codec; | |
1395 | ||
44c69bb1 | 1396 | return 0; |
b19e6e7b MB |
1397 | } |
1398 | ||
2eea392d JN |
1399 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1400 | { | |
44c69bb1 | 1401 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
2eea392d | 1402 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
44c69bb1 | 1403 | int ret; |
3ca041ed | 1404 | |
65d9361f | 1405 | ret = soc_probe_component(card, rtd->component); |
2eea392d | 1406 | if (ret < 0) |
589c3563 | 1407 | return ret; |
2eea392d | 1408 | |
5f3484ac LPC |
1409 | /* do machine specific initialization */ |
1410 | if (aux_dev->init) { | |
57bf7726 | 1411 | ret = aux_dev->init(rtd->component); |
5f3484ac LPC |
1412 | if (ret < 0) { |
1413 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1414 | aux_dev->name, ret); | |
1415 | return ret; | |
1416 | } | |
1417 | } | |
2eea392d | 1418 | |
5f3484ac | 1419 | return soc_post_component_init(rtd, aux_dev->name); |
2eea392d JN |
1420 | } |
1421 | ||
1422 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1423 | { | |
1424 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
65d9361f | 1425 | struct snd_soc_component *component = rtd->component; |
2eea392d JN |
1426 | |
1427 | /* unregister the rtd device */ | |
1428 | if (rtd->dev_registered) { | |
36ae1a96 | 1429 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
d3bf1561 | 1430 | device_unregister(rtd->dev); |
2eea392d JN |
1431 | rtd->dev_registered = 0; |
1432 | } | |
1433 | ||
65d9361f LPC |
1434 | if (component && component->probed) |
1435 | soc_remove_component(component); | |
2eea392d JN |
1436 | } |
1437 | ||
f90fb3f7 | 1438 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1439 | { |
1440 | int ret; | |
1441 | ||
1442 | if (codec->cache_init) | |
1443 | return 0; | |
1444 | ||
fdf0f54d DP |
1445 | ret = snd_soc_cache_init(codec); |
1446 | if (ret < 0) { | |
10e8aa9a MM |
1447 | dev_err(codec->dev, |
1448 | "ASoC: Failed to set cache compression type: %d\n", | |
1449 | ret); | |
fdf0f54d DP |
1450 | return ret; |
1451 | } | |
1452 | codec->cache_init = 1; | |
1453 | return 0; | |
1454 | } | |
1455 | ||
ce64c8b9 LPC |
1456 | /** |
1457 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1458 | * @rtd: The runtime for which the DAI link format should be changed | |
1459 | * @dai_fmt: The new DAI link format | |
1460 | * | |
1461 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1462 | * link for the specified runtime. | |
1463 | * | |
1464 | * Note: For setups with a static format set the dai_fmt field in the | |
1465 | * corresponding snd_dai_link struct instead of using this function. | |
1466 | * | |
1467 | * Returns 0 on success, otherwise a negative error code. | |
1468 | */ | |
1469 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1470 | unsigned int dai_fmt) | |
1471 | { | |
1472 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1473 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1474 | unsigned int i; | |
1475 | int ret; | |
1476 | ||
1477 | for (i = 0; i < rtd->num_codecs; i++) { | |
1478 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1479 | ||
1480 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1481 | if (ret != 0 && ret != -ENOTSUPP) { | |
1482 | dev_warn(codec_dai->dev, | |
1483 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1484 | return ret; | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1489 | if (cpu_dai->codec) { | |
1490 | unsigned int inv_dai_fmt; | |
1491 | ||
1492 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1493 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1494 | case SND_SOC_DAIFMT_CBM_CFM: | |
1495 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1496 | break; | |
1497 | case SND_SOC_DAIFMT_CBM_CFS: | |
1498 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1499 | break; | |
1500 | case SND_SOC_DAIFMT_CBS_CFM: | |
1501 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1502 | break; | |
1503 | case SND_SOC_DAIFMT_CBS_CFS: | |
1504 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1505 | break; | |
1506 | } | |
1507 | ||
1508 | dai_fmt = inv_dai_fmt; | |
1509 | } | |
1510 | ||
1511 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1512 | if (ret != 0 && ret != -ENOTSUPP) { | |
1513 | dev_warn(cpu_dai->dev, | |
1514 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1515 | return ret; | |
1516 | } | |
1517 | ||
1518 | return 0; | |
1519 | } | |
ddaca25a | 1520 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1521 | |
b19e6e7b | 1522 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1523 | { |
fdf0f54d | 1524 | struct snd_soc_codec *codec; |
ce64c8b9 | 1525 | int ret, i, order; |
fe3e78e0 | 1526 | |
34e81ab4 | 1527 | mutex_lock(&client_mutex); |
01b9d99a | 1528 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1529 | |
f0fba2ad | 1530 | /* bind DAIs */ |
b19e6e7b MB |
1531 | for (i = 0; i < card->num_links; i++) { |
1532 | ret = soc_bind_dai_link(card, i); | |
1533 | if (ret != 0) | |
1534 | goto base_error; | |
1535 | } | |
fe3e78e0 | 1536 | |
44c69bb1 | 1537 | /* bind aux_devs too */ |
b19e6e7b | 1538 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 1539 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
1540 | if (ret != 0) |
1541 | goto base_error; | |
f0fba2ad | 1542 | } |
435c5e25 | 1543 | |
fdf0f54d DP |
1544 | /* initialize the register cache for each available codec */ |
1545 | list_for_each_entry(codec, &codec_list, list) { | |
1546 | if (codec->cache_init) | |
1547 | continue; | |
f90fb3f7 | 1548 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
1549 | if (ret < 0) |
1550 | goto base_error; | |
fdf0f54d DP |
1551 | } |
1552 | ||
f0fba2ad | 1553 | /* card bind complete so register a sound card */ |
102b5a8d | 1554 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1555 | card->owner, 0, &card->snd_card); |
1556 | if (ret < 0) { | |
10e8aa9a MM |
1557 | dev_err(card->dev, |
1558 | "ASoC: can't create sound card for card %s: %d\n", | |
1559 | card->name, ret); | |
b19e6e7b | 1560 | goto base_error; |
f0fba2ad | 1561 | } |
f0fba2ad | 1562 | |
e37a4970 MB |
1563 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1564 | card->dapm.dev = card->dev; | |
1565 | card->dapm.card = card; | |
1566 | list_add(&card->dapm.list, &card->dapm_list); | |
1567 | ||
d5d1e0be LPC |
1568 | #ifdef CONFIG_DEBUG_FS |
1569 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1570 | #endif | |
1571 | ||
88ee1c61 | 1572 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1573 | /* deferred resume work */ |
1574 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1575 | #endif | |
db2a4165 | 1576 | |
9a841ebb MB |
1577 | if (card->dapm_widgets) |
1578 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1579 | card->num_dapm_widgets); | |
1580 | ||
f0fba2ad LG |
1581 | /* initialise the sound card only once */ |
1582 | if (card->probe) { | |
e7361ec4 | 1583 | ret = card->probe(card); |
f0fba2ad LG |
1584 | if (ret < 0) |
1585 | goto card_probe_error; | |
1586 | } | |
fe3e78e0 | 1587 | |
62ae68fa | 1588 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1589 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1590 | order++) { | |
1591 | for (i = 0; i < card->num_links; i++) { | |
62ae68fa | 1592 | ret = soc_probe_link_components(card, i, order); |
0168bf0d | 1593 | if (ret < 0) { |
f110bfc7 LG |
1594 | dev_err(card->dev, |
1595 | "ASoC: failed to instantiate card %d\n", | |
1596 | ret); | |
62ae68fa SW |
1597 | goto probe_dai_err; |
1598 | } | |
1599 | } | |
1600 | } | |
1601 | ||
1602 | /* probe all DAI links on this card */ | |
1603 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1604 | order++) { | |
1605 | for (i = 0; i < card->num_links; i++) { | |
1606 | ret = soc_probe_link_dais(card, i, order); | |
1607 | if (ret < 0) { | |
f110bfc7 LG |
1608 | dev_err(card->dev, |
1609 | "ASoC: failed to instantiate card %d\n", | |
1610 | ret); | |
0168bf0d LG |
1611 | goto probe_dai_err; |
1612 | } | |
f0fba2ad LG |
1613 | } |
1614 | } | |
db2a4165 | 1615 | |
2eea392d JN |
1616 | for (i = 0; i < card->num_aux_devs; i++) { |
1617 | ret = soc_probe_aux_dev(card, i); | |
1618 | if (ret < 0) { | |
f110bfc7 LG |
1619 | dev_err(card->dev, |
1620 | "ASoC: failed to add auxiliary devices %d\n", | |
1621 | ret); | |
2eea392d JN |
1622 | goto probe_aux_dev_err; |
1623 | } | |
1624 | } | |
1625 | ||
888df395 | 1626 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1627 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1628 | |
b7af1daf | 1629 | if (card->controls) |
022658be | 1630 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1631 | |
b8ad29de MB |
1632 | if (card->dapm_routes) |
1633 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1634 | card->num_dapm_routes); | |
1635 | ||
75d9ac46 | 1636 | for (i = 0; i < card->num_links; i++) { |
ce64c8b9 LPC |
1637 | if (card->dai_link[i].dai_fmt) |
1638 | snd_soc_runtime_set_dai_fmt(&card->rtd[i], | |
1639 | card->dai_link[i].dai_fmt); | |
75d9ac46 MB |
1640 | } |
1641 | ||
f0fba2ad | 1642 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1643 | "%s", card->name); |
22de71ba LG |
1644 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1645 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1646 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1647 | "%s", card->driver_name ? card->driver_name : card->name); | |
1648 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1649 | switch (card->snd_card->driver[i]) { | |
1650 | case '_': | |
1651 | case '-': | |
1652 | case '\0': | |
1653 | break; | |
1654 | default: | |
1655 | if (!isalnum(card->snd_card->driver[i])) | |
1656 | card->snd_card->driver[i] = '_'; | |
1657 | break; | |
1658 | } | |
1659 | } | |
f0fba2ad | 1660 | |
28e9ad92 MB |
1661 | if (card->late_probe) { |
1662 | ret = card->late_probe(card); | |
1663 | if (ret < 0) { | |
f110bfc7 | 1664 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
1665 | card->name, ret); |
1666 | goto probe_aux_dev_err; | |
1667 | } | |
1668 | } | |
1669 | ||
824ef826 | 1670 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 1671 | |
f0fba2ad LG |
1672 | ret = snd_card_register(card->snd_card); |
1673 | if (ret < 0) { | |
f110bfc7 LG |
1674 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
1675 | ret); | |
6b3ed785 | 1676 | goto probe_aux_dev_err; |
db2a4165 FM |
1677 | } |
1678 | ||
f0fba2ad | 1679 | card->instantiated = 1; |
4f4c0072 | 1680 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1681 | mutex_unlock(&card->mutex); |
34e81ab4 | 1682 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
1683 | |
1684 | return 0; | |
f0fba2ad | 1685 | |
2eea392d JN |
1686 | probe_aux_dev_err: |
1687 | for (i = 0; i < card->num_aux_devs; i++) | |
1688 | soc_remove_aux_dev(card, i); | |
1689 | ||
f0fba2ad | 1690 | probe_dai_err: |
0671fd8e | 1691 | soc_remove_dai_links(card); |
f0fba2ad LG |
1692 | |
1693 | card_probe_error: | |
87506549 | 1694 | if (card->remove) |
e7361ec4 | 1695 | card->remove(card); |
f0fba2ad LG |
1696 | |
1697 | snd_card_free(card->snd_card); | |
1698 | ||
b19e6e7b | 1699 | base_error: |
f0fba2ad | 1700 | mutex_unlock(&card->mutex); |
34e81ab4 | 1701 | mutex_unlock(&client_mutex); |
db2a4165 | 1702 | |
b19e6e7b | 1703 | return ret; |
435c5e25 MB |
1704 | } |
1705 | ||
1706 | /* probes a new socdev */ | |
1707 | static int soc_probe(struct platform_device *pdev) | |
1708 | { | |
f0fba2ad | 1709 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1710 | |
70a7ca34 VK |
1711 | /* |
1712 | * no card, so machine driver should be registering card | |
1713 | * we should not be here in that case so ret error | |
1714 | */ | |
1715 | if (!card) | |
1716 | return -EINVAL; | |
1717 | ||
fe4085e8 | 1718 | dev_warn(&pdev->dev, |
f110bfc7 | 1719 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
1720 | card->name); |
1721 | ||
435c5e25 MB |
1722 | /* Bodge while we unpick instantiation */ |
1723 | card->dev = &pdev->dev; | |
f0fba2ad | 1724 | |
28d528c8 | 1725 | return snd_soc_register_card(card); |
db2a4165 FM |
1726 | } |
1727 | ||
b0e26485 | 1728 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1729 | { |
1730 | int i; | |
db2a4165 | 1731 | |
b0e26485 VK |
1732 | /* make sure any delayed work runs */ |
1733 | for (i = 0; i < card->num_rtd; i++) { | |
1734 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1735 | flush_delayed_work(&rtd->delayed_work); |
b0e26485 | 1736 | } |
914dc182 | 1737 | |
b0e26485 VK |
1738 | /* remove auxiliary devices */ |
1739 | for (i = 0; i < card->num_aux_devs; i++) | |
1740 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1741 | |
b0e26485 | 1742 | /* remove and free each DAI */ |
0671fd8e | 1743 | soc_remove_dai_links(card); |
2eea392d | 1744 | |
b0e26485 | 1745 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1746 | |
b0e26485 VK |
1747 | /* remove the card */ |
1748 | if (card->remove) | |
e7361ec4 | 1749 | card->remove(card); |
a6052154 | 1750 | |
0aaae527 LPC |
1751 | snd_soc_dapm_free(&card->dapm); |
1752 | ||
b0e26485 VK |
1753 | snd_card_free(card->snd_card); |
1754 | return 0; | |
1755 | ||
1756 | } | |
1757 | ||
1758 | /* removes a socdev */ | |
1759 | static int soc_remove(struct platform_device *pdev) | |
1760 | { | |
1761 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1762 | |
c5af3a2e | 1763 | snd_soc_unregister_card(card); |
db2a4165 FM |
1764 | return 0; |
1765 | } | |
1766 | ||
6f8ab4ac | 1767 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1768 | { |
6f8ab4ac | 1769 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1770 | int i; |
51737470 MB |
1771 | |
1772 | if (!card->instantiated) | |
416356fc | 1773 | return 0; |
51737470 MB |
1774 | |
1775 | /* Flush out pmdown_time work - we actually do want to run it | |
1776 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1777 | for (i = 0; i < card->num_rtd; i++) { |
1778 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1779 | flush_delayed_work(&rtd->delayed_work); |
f0fba2ad | 1780 | } |
51737470 | 1781 | |
f0fba2ad | 1782 | snd_soc_dapm_shutdown(card); |
416356fc | 1783 | |
988e8cc4 NC |
1784 | /* deactivate pins to sleep state */ |
1785 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
1786 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
1787 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1788 | int j; | |
1789 | ||
988e8cc4 | 1790 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
88bd870f BC |
1791 | for (j = 0; j < rtd->num_codecs; j++) { |
1792 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
1793 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
1794 | } | |
988e8cc4 NC |
1795 | } |
1796 | ||
416356fc | 1797 | return 0; |
51737470 | 1798 | } |
6f8ab4ac | 1799 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1800 | |
6f8ab4ac | 1801 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1802 | .suspend = snd_soc_suspend, |
1803 | .resume = snd_soc_resume, | |
1804 | .freeze = snd_soc_suspend, | |
1805 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1806 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1807 | .restore = snd_soc_resume, |
416356fc | 1808 | }; |
deb2607e | 1809 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1810 | |
db2a4165 FM |
1811 | /* ASoC platform driver */ |
1812 | static struct platform_driver soc_driver = { | |
1813 | .driver = { | |
1814 | .name = "soc-audio", | |
6f8ab4ac | 1815 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1816 | }, |
1817 | .probe = soc_probe, | |
1818 | .remove = soc_remove, | |
db2a4165 FM |
1819 | }; |
1820 | ||
db2a4165 FM |
1821 | /** |
1822 | * snd_soc_cnew - create new control | |
1823 | * @_template: control template | |
1824 | * @data: control private data | |
ac11a2b3 | 1825 | * @long_name: control long name |
efb7ac3f | 1826 | * @prefix: control name prefix |
db2a4165 FM |
1827 | * |
1828 | * Create a new mixer control from a template control. | |
1829 | * | |
1830 | * Returns 0 for success, else error. | |
1831 | */ | |
1832 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 1833 | void *data, const char *long_name, |
efb7ac3f | 1834 | const char *prefix) |
db2a4165 FM |
1835 | { |
1836 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1837 | struct snd_kcontrol *kcontrol; |
1838 | char *name = NULL; | |
db2a4165 FM |
1839 | |
1840 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1841 | template.index = 0; |
1842 | ||
efb7ac3f MB |
1843 | if (!long_name) |
1844 | long_name = template.name; | |
1845 | ||
1846 | if (prefix) { | |
2b581074 | 1847 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
1848 | if (!name) |
1849 | return NULL; | |
1850 | ||
efb7ac3f MB |
1851 | template.name = name; |
1852 | } else { | |
1853 | template.name = long_name; | |
1854 | } | |
1855 | ||
1856 | kcontrol = snd_ctl_new1(&template, data); | |
1857 | ||
1858 | kfree(name); | |
1859 | ||
1860 | return kcontrol; | |
db2a4165 FM |
1861 | } |
1862 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1863 | ||
022658be LG |
1864 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
1865 | const struct snd_kcontrol_new *controls, int num_controls, | |
1866 | const char *prefix, void *data) | |
1867 | { | |
1868 | int err, i; | |
1869 | ||
1870 | for (i = 0; i < num_controls; i++) { | |
1871 | const struct snd_kcontrol_new *control = &controls[i]; | |
1872 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
1873 | control->name, prefix)); | |
1874 | if (err < 0) { | |
f110bfc7 LG |
1875 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
1876 | control->name, err); | |
022658be LG |
1877 | return err; |
1878 | } | |
1879 | } | |
1880 | ||
1881 | return 0; | |
1882 | } | |
1883 | ||
4fefd698 DP |
1884 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
1885 | const char *name) | |
1886 | { | |
1887 | struct snd_card *card = soc_card->snd_card; | |
1888 | struct snd_kcontrol *kctl; | |
1889 | ||
1890 | if (unlikely(!name)) | |
1891 | return NULL; | |
1892 | ||
1893 | list_for_each_entry(kctl, &card->controls, list) | |
1894 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
1895 | return kctl; | |
1896 | return NULL; | |
1897 | } | |
1898 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
1899 | ||
0f2780ad LPC |
1900 | /** |
1901 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
1902 | * | |
1903 | * @component: Component to add controls to | |
1904 | * @controls: Array of controls to add | |
1905 | * @num_controls: Number of elements in the array | |
1906 | * | |
1907 | * Return: 0 for success, else error. | |
1908 | */ | |
1909 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
1910 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
1911 | { | |
1912 | struct snd_card *card = component->card->snd_card; | |
1913 | ||
1914 | return snd_soc_add_controls(card, component->dev, controls, | |
1915 | num_controls, component->name_prefix, component); | |
1916 | } | |
1917 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
1918 | ||
3e8e1952 | 1919 | /** |
022658be LG |
1920 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
1921 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
1922 | * duplicating this code. |
1923 | * | |
1924 | * @codec: codec to add controls to | |
1925 | * @controls: array of controls to add | |
1926 | * @num_controls: number of elements in the array | |
1927 | * | |
1928 | * Return 0 for success, else error. | |
1929 | */ | |
022658be | 1930 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 1931 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 1932 | { |
0f2780ad LPC |
1933 | return snd_soc_add_component_controls(&codec->component, controls, |
1934 | num_controls); | |
3e8e1952 | 1935 | } |
022658be | 1936 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 1937 | |
a491a5c8 LG |
1938 | /** |
1939 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 1940 | * Convenience function to add a list of controls. |
a491a5c8 LG |
1941 | * |
1942 | * @platform: platform to add controls to | |
1943 | * @controls: array of controls to add | |
1944 | * @num_controls: number of elements in the array | |
1945 | * | |
1946 | * Return 0 for success, else error. | |
1947 | */ | |
1948 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 1949 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 1950 | { |
0f2780ad LPC |
1951 | return snd_soc_add_component_controls(&platform->component, controls, |
1952 | num_controls); | |
a491a5c8 LG |
1953 | } |
1954 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
1955 | ||
022658be LG |
1956 | /** |
1957 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
1958 | * Convenience function to add a list of controls. | |
1959 | * | |
1960 | * @soc_card: SoC card to add controls to | |
1961 | * @controls: array of controls to add | |
1962 | * @num_controls: number of elements in the array | |
1963 | * | |
1964 | * Return 0 for success, else error. | |
1965 | */ | |
1966 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
1967 | const struct snd_kcontrol_new *controls, int num_controls) | |
1968 | { | |
1969 | struct snd_card *card = soc_card->snd_card; | |
1970 | ||
1971 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
1972 | NULL, soc_card); | |
1973 | } | |
1974 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
1975 | ||
1976 | /** | |
1977 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
1978 | * Convienience function to add a list of controls. | |
1979 | * | |
1980 | * @dai: DAI to add controls to | |
1981 | * @controls: array of controls to add | |
1982 | * @num_controls: number of elements in the array | |
1983 | * | |
1984 | * Return 0 for success, else error. | |
1985 | */ | |
1986 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
1987 | const struct snd_kcontrol_new *controls, int num_controls) | |
1988 | { | |
313665b9 | 1989 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
1990 | |
1991 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
1992 | NULL, dai); | |
1993 | } | |
1994 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
1995 | ||
8c6529db LG |
1996 | /** |
1997 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
1998 | * @dai: DAI | |
1999 | * @clk_id: DAI specific clock ID | |
2000 | * @freq: new clock frequency in Hz | |
2001 | * @dir: new clock direction - input/output. | |
2002 | * | |
2003 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2004 | */ | |
2005 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2006 | unsigned int freq, int dir) | |
2007 | { | |
f0fba2ad LG |
2008 | if (dai->driver && dai->driver->ops->set_sysclk) |
2009 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2010 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2011 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2012 | freq, dir); |
8c6529db | 2013 | else |
1104a9c8 | 2014 | return -ENOTSUPP; |
8c6529db LG |
2015 | } |
2016 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2017 | ||
ec4ee52a MB |
2018 | /** |
2019 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2020 | * @codec: CODEC | |
2021 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2022 | * @source: Source for the clock |
ec4ee52a MB |
2023 | * @freq: new clock frequency in Hz |
2024 | * @dir: new clock direction - input/output. | |
2025 | * | |
2026 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2027 | */ | |
2028 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2029 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2030 | { |
2031 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2032 | return codec->driver->set_sysclk(codec, clk_id, source, |
2033 | freq, dir); | |
ec4ee52a | 2034 | else |
1104a9c8 | 2035 | return -ENOTSUPP; |
ec4ee52a MB |
2036 | } |
2037 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2038 | ||
8c6529db LG |
2039 | /** |
2040 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2041 | * @dai: DAI | |
ac11a2b3 | 2042 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2043 | * @div: new clock divisor. |
2044 | * | |
2045 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2046 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2047 | * and frame clocks as low as possible to save system power. | |
2048 | */ | |
2049 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2050 | int div_id, int div) | |
2051 | { | |
f0fba2ad LG |
2052 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2053 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2054 | else |
2055 | return -EINVAL; | |
2056 | } | |
2057 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2058 | ||
2059 | /** | |
2060 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2061 | * @dai: DAI | |
2062 | * @pll_id: DAI specific PLL ID | |
85488037 | 2063 | * @source: DAI specific source for the PLL |
8c6529db LG |
2064 | * @freq_in: PLL input clock frequency in Hz |
2065 | * @freq_out: requested PLL output clock frequency in Hz | |
2066 | * | |
2067 | * Configures and enables PLL to generate output clock based on input clock. | |
2068 | */ | |
85488037 MB |
2069 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2070 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2071 | { |
f0fba2ad LG |
2072 | if (dai->driver && dai->driver->ops->set_pll) |
2073 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2074 | freq_in, freq_out); |
ec4ee52a MB |
2075 | else if (dai->codec && dai->codec->driver->set_pll) |
2076 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2077 | freq_in, freq_out); | |
8c6529db LG |
2078 | else |
2079 | return -EINVAL; | |
2080 | } | |
2081 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2082 | ||
ec4ee52a MB |
2083 | /* |
2084 | * snd_soc_codec_set_pll - configure codec PLL. | |
2085 | * @codec: CODEC | |
2086 | * @pll_id: DAI specific PLL ID | |
2087 | * @source: DAI specific source for the PLL | |
2088 | * @freq_in: PLL input clock frequency in Hz | |
2089 | * @freq_out: requested PLL output clock frequency in Hz | |
2090 | * | |
2091 | * Configures and enables PLL to generate output clock based on input clock. | |
2092 | */ | |
2093 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2094 | unsigned int freq_in, unsigned int freq_out) | |
2095 | { | |
2096 | if (codec->driver->set_pll) | |
2097 | return codec->driver->set_pll(codec, pll_id, source, | |
2098 | freq_in, freq_out); | |
2099 | else | |
2100 | return -EINVAL; | |
2101 | } | |
2102 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2103 | ||
e54cf76b LG |
2104 | /** |
2105 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2106 | * @dai: DAI | |
2107 | * @ratio Ratio of BCLK to Sample rate. | |
2108 | * | |
2109 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2110 | */ | |
2111 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2112 | { | |
2113 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2114 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2115 | else | |
2116 | return -EINVAL; | |
2117 | } | |
2118 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2119 | ||
8c6529db LG |
2120 | /** |
2121 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2122 | * @dai: DAI | |
8c6529db LG |
2123 | * @fmt: SND_SOC_DAIFMT_ format value. |
2124 | * | |
2125 | * Configures the DAI hardware format and clocking. | |
2126 | */ | |
2127 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2128 | { | |
5e4ba569 | 2129 | if (dai->driver == NULL) |
8c6529db | 2130 | return -EINVAL; |
5e4ba569 SG |
2131 | if (dai->driver->ops->set_fmt == NULL) |
2132 | return -ENOTSUPP; | |
2133 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2134 | } |
2135 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2136 | ||
89c67857 | 2137 | /** |
e5c21514 | 2138 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2139 | * @slots: Number of slots in use. |
2140 | * @tx_mask: bitmask representing active TX slots. | |
2141 | * @rx_mask: bitmask representing active RX slots. | |
2142 | * | |
2143 | * Generates the TDM tx and rx slot default masks for DAI. | |
2144 | */ | |
e5c21514 | 2145 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2146 | unsigned int *tx_mask, |
2147 | unsigned int *rx_mask) | |
2148 | { | |
2149 | if (*tx_mask || *rx_mask) | |
2150 | return 0; | |
2151 | ||
2152 | if (!slots) | |
2153 | return -EINVAL; | |
2154 | ||
2155 | *tx_mask = (1 << slots) - 1; | |
2156 | *rx_mask = (1 << slots) - 1; | |
2157 | ||
2158 | return 0; | |
2159 | } | |
2160 | ||
8c6529db | 2161 | /** |
e46c9366 LPC |
2162 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2163 | * @dai: The DAI to configure | |
a5479e38 DR |
2164 | * @tx_mask: bitmask representing active TX slots. |
2165 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2166 | * @slots: Number of slots in use. |
a5479e38 | 2167 | * @slot_width: Width in bits for each slot. |
8c6529db | 2168 | * |
e46c9366 LPC |
2169 | * This function configures the specified DAI for TDM operation. @slot contains |
2170 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2171 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2172 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2173 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2174 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2175 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2176 | * maps to the first channel of the DAI, the second active slot to the second | |
2177 | * channel and so on. | |
2178 | * | |
2179 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2180 | * @rx_mask and @slot_width will be ignored. | |
2181 | * | |
2182 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2183 | */ |
2184 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2185 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2186 | { |
e5c21514 XL |
2187 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2188 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2189 | &tx_mask, &rx_mask); |
2190 | else | |
e5c21514 | 2191 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2192 | |
88bd870f BC |
2193 | dai->tx_mask = tx_mask; |
2194 | dai->rx_mask = rx_mask; | |
2195 | ||
f0fba2ad LG |
2196 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2197 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2198 | slots, slot_width); |
8c6529db | 2199 | else |
b2cbb6e1 | 2200 | return -ENOTSUPP; |
8c6529db LG |
2201 | } |
2202 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2203 | ||
472df3cb BS |
2204 | /** |
2205 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2206 | * @dai: DAI | |
2207 | * @tx_num: how many TX channels | |
2208 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2209 | * 0~num-1 uses | |
2210 | * @rx_num: how many RX channels | |
2211 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2212 | * 0~num-1 uses | |
2213 | * | |
2214 | * configure the relationship between channel number and TDM slot number. | |
2215 | */ | |
2216 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2217 | unsigned int tx_num, unsigned int *tx_slot, | |
2218 | unsigned int rx_num, unsigned int *rx_slot) | |
2219 | { | |
f0fba2ad LG |
2220 | if (dai->driver && dai->driver->ops->set_channel_map) |
2221 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2222 | rx_num, rx_slot); |
2223 | else | |
2224 | return -EINVAL; | |
2225 | } | |
2226 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2227 | ||
8c6529db LG |
2228 | /** |
2229 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2230 | * @dai: DAI | |
2231 | * @tristate: tristate enable | |
2232 | * | |
2233 | * Tristates the DAI so that others can use it. | |
2234 | */ | |
2235 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2236 | { | |
f0fba2ad LG |
2237 | if (dai->driver && dai->driver->ops->set_tristate) |
2238 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2239 | else |
2240 | return -EINVAL; | |
2241 | } | |
2242 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2243 | ||
2244 | /** | |
2245 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2246 | * @dai: DAI | |
2247 | * @mute: mute enable | |
da18396f | 2248 | * @direction: stream to mute |
8c6529db LG |
2249 | * |
2250 | * Mutes the DAI DAC. | |
2251 | */ | |
da18396f MB |
2252 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2253 | int direction) | |
8c6529db | 2254 | { |
da18396f MB |
2255 | if (!dai->driver) |
2256 | return -ENOTSUPP; | |
2257 | ||
2258 | if (dai->driver->ops->mute_stream) | |
2259 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2260 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2261 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2262 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2263 | else |
04570c62 | 2264 | return -ENOTSUPP; |
8c6529db LG |
2265 | } |
2266 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2267 | ||
88bd870f BC |
2268 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
2269 | struct snd_soc_dai_link *dai_link) | |
2270 | { | |
2271 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
2272 | if (dai_link->codec_name || dai_link->codec_of_node || | |
2273 | dai_link->codec_dai_name) { | |
2274 | dai_link->num_codecs = 1; | |
2275 | ||
2276 | dai_link->codecs = devm_kzalloc(card->dev, | |
2277 | sizeof(struct snd_soc_dai_link_component), | |
2278 | GFP_KERNEL); | |
2279 | if (!dai_link->codecs) | |
2280 | return -ENOMEM; | |
2281 | ||
2282 | dai_link->codecs[0].name = dai_link->codec_name; | |
2283 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
2284 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
2285 | } | |
2286 | ||
2287 | if (!dai_link->codecs) { | |
2288 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
2289 | return -EINVAL; | |
2290 | } | |
2291 | ||
2292 | return 0; | |
2293 | } | |
2294 | ||
c5af3a2e MB |
2295 | /** |
2296 | * snd_soc_register_card - Register a card with the ASoC core | |
2297 | * | |
ac11a2b3 | 2298 | * @card: Card to register |
c5af3a2e | 2299 | * |
c5af3a2e | 2300 | */ |
70a7ca34 | 2301 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2302 | { |
88bd870f | 2303 | int i, j, ret; |
f0fba2ad | 2304 | |
c5af3a2e MB |
2305 | if (!card->name || !card->dev) |
2306 | return -EINVAL; | |
2307 | ||
5a504963 SW |
2308 | for (i = 0; i < card->num_links; i++) { |
2309 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2310 | ||
88bd870f BC |
2311 | ret = snd_soc_init_multicodec(card, link); |
2312 | if (ret) { | |
2313 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
2314 | return ret; | |
5a504963 | 2315 | } |
88bd870f BC |
2316 | |
2317 | for (j = 0; j < link->num_codecs; j++) { | |
2318 | /* | |
2319 | * Codec must be specified by 1 of name or OF node, | |
2320 | * not both or neither. | |
2321 | */ | |
2322 | if (!!link->codecs[j].name == | |
2323 | !!link->codecs[j].of_node) { | |
2324 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
2325 | link->name); | |
2326 | return -EINVAL; | |
2327 | } | |
2328 | /* Codec DAI name must be specified */ | |
2329 | if (!link->codecs[j].dai_name) { | |
2330 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
2331 | link->name); | |
2332 | return -EINVAL; | |
2333 | } | |
bc92657a | 2334 | } |
5a504963 SW |
2335 | |
2336 | /* | |
2337 | * Platform may be specified by either name or OF node, but | |
2338 | * can be left unspecified, and a dummy platform will be used. | |
2339 | */ | |
2340 | if (link->platform_name && link->platform_of_node) { | |
10e8aa9a MM |
2341 | dev_err(card->dev, |
2342 | "ASoC: Both platform name/of_node are set for %s\n", | |
2343 | link->name); | |
5a504963 SW |
2344 | return -EINVAL; |
2345 | } | |
2346 | ||
2347 | /* | |
bc92657a SW |
2348 | * CPU device may be specified by either name or OF node, but |
2349 | * can be left unspecified, and will be matched based on DAI | |
2350 | * name alone.. | |
2351 | */ | |
2352 | if (link->cpu_name && link->cpu_of_node) { | |
10e8aa9a MM |
2353 | dev_err(card->dev, |
2354 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
2355 | link->name); | |
bc92657a SW |
2356 | return -EINVAL; |
2357 | } | |
2358 | /* | |
2359 | * At least one of CPU DAI name or CPU device name/node must be | |
2360 | * specified | |
5a504963 | 2361 | */ |
bc92657a SW |
2362 | if (!link->cpu_dai_name && |
2363 | !(link->cpu_name || link->cpu_of_node)) { | |
10e8aa9a MM |
2364 | dev_err(card->dev, |
2365 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
2366 | link->name); | |
5a504963 SW |
2367 | return -EINVAL; |
2368 | } | |
2369 | } | |
2370 | ||
ed77cc12 MB |
2371 | dev_set_drvdata(card->dev, card); |
2372 | ||
111c6419 SW |
2373 | snd_soc_initialize_card_lists(card); |
2374 | ||
150dd2f8 VK |
2375 | soc_init_card_debugfs(card); |
2376 | ||
181a6892 MB |
2377 | card->rtd = devm_kzalloc(card->dev, |
2378 | sizeof(struct snd_soc_pcm_runtime) * | |
2379 | (card->num_links + card->num_aux_devs), | |
2380 | GFP_KERNEL); | |
f0fba2ad LG |
2381 | if (card->rtd == NULL) |
2382 | return -ENOMEM; | |
a7dbb603 | 2383 | card->num_rtd = 0; |
2eea392d | 2384 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad | 2385 | |
5f3484ac LPC |
2386 | for (i = 0; i < card->num_links; i++) { |
2387 | card->rtd[i].card = card; | |
f0fba2ad | 2388 | card->rtd[i].dai_link = &card->dai_link[i]; |
88bd870f BC |
2389 | card->rtd[i].codec_dais = devm_kzalloc(card->dev, |
2390 | sizeof(struct snd_soc_dai *) * | |
2391 | (card->rtd[i].dai_link->num_codecs), | |
2392 | GFP_KERNEL); | |
2393 | if (card->rtd[i].codec_dais == NULL) | |
2394 | return -ENOMEM; | |
5f3484ac LPC |
2395 | } |
2396 | ||
2397 | for (i = 0; i < card->num_aux_devs; i++) | |
2398 | card->rtd_aux[i].card = card; | |
f0fba2ad | 2399 | |
db432b41 | 2400 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 2401 | card->instantiated = 0; |
f0fba2ad | 2402 | mutex_init(&card->mutex); |
a73fb2df | 2403 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2404 | |
b19e6e7b MB |
2405 | ret = snd_soc_instantiate_card(card); |
2406 | if (ret != 0) | |
2407 | soc_cleanup_card_debugfs(card); | |
c5af3a2e | 2408 | |
988e8cc4 NC |
2409 | /* deactivate pins to sleep state */ |
2410 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
2411 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
2412 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2413 | int j; | |
2414 | ||
2415 | for (j = 0; j < rtd->num_codecs; j++) { | |
2416 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2417 | if (!codec_dai->active) | |
2418 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2419 | } | |
2420 | ||
988e8cc4 NC |
2421 | if (!cpu_dai->active) |
2422 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2423 | } | |
2424 | ||
b19e6e7b | 2425 | return ret; |
c5af3a2e | 2426 | } |
70a7ca34 | 2427 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2428 | |
2429 | /** | |
2430 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2431 | * | |
ac11a2b3 | 2432 | * @card: Card to unregister |
c5af3a2e | 2433 | * |
c5af3a2e | 2434 | */ |
70a7ca34 | 2435 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2436 | { |
01e0df66 LPC |
2437 | if (card->instantiated) { |
2438 | card->instantiated = false; | |
1c325f77 | 2439 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2440 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2441 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2442 | } |
c5af3a2e MB |
2443 | |
2444 | return 0; | |
2445 | } | |
70a7ca34 | 2446 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2447 | |
f0fba2ad LG |
2448 | /* |
2449 | * Simplify DAI link configuration by removing ".-1" from device names | |
2450 | * and sanitizing names. | |
2451 | */ | |
0b9a214a | 2452 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2453 | { |
2454 | char *found, name[NAME_SIZE]; | |
2455 | int id1, id2; | |
2456 | ||
2457 | if (dev_name(dev) == NULL) | |
2458 | return NULL; | |
2459 | ||
58818a77 | 2460 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2461 | |
2462 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2463 | found = strstr(name, dev->driver->name); | |
2464 | if (found) { | |
2465 | /* get ID */ | |
2466 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2467 | ||
2468 | /* discard ID from name if ID == -1 */ | |
2469 | if (*id == -1) | |
2470 | found[strlen(dev->driver->name)] = '\0'; | |
2471 | } | |
2472 | ||
2473 | } else { | |
2474 | /* I2C component devices are named "bus-addr" */ | |
2475 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2476 | char tmp[NAME_SIZE]; | |
2477 | ||
2478 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2479 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2480 | |
2481 | /* sanitize component name for DAI link creation */ | |
2482 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2483 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2484 | } else |
2485 | *id = 0; | |
2486 | } | |
2487 | ||
2488 | return kstrdup(name, GFP_KERNEL); | |
2489 | } | |
2490 | ||
2491 | /* | |
2492 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2493 | * any ".-1" and using the DAI name (instead of device name). | |
2494 | */ | |
2495 | static inline char *fmt_multiple_name(struct device *dev, | |
2496 | struct snd_soc_dai_driver *dai_drv) | |
2497 | { | |
2498 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2499 | dev_err(dev, |
2500 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2501 | dev_name(dev)); | |
f0fba2ad LG |
2502 | return NULL; |
2503 | } | |
2504 | ||
2505 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2506 | } | |
2507 | ||
9115171a | 2508 | /** |
32c9ba54 | 2509 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2510 | * |
32c9ba54 | 2511 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2512 | */ |
32c9ba54 | 2513 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2514 | { |
5c1d5f09 | 2515 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2516 | |
5c1d5f09 | 2517 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2518 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2519 | dai->name); | |
5c1d5f09 | 2520 | list_del(&dai->list); |
32c9ba54 | 2521 | kfree(dai->name); |
f0fba2ad | 2522 | kfree(dai); |
f0fba2ad | 2523 | } |
9115171a | 2524 | } |
9115171a MB |
2525 | |
2526 | /** | |
32c9ba54 | 2527 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 2528 | * |
6106d129 LPC |
2529 | * @component: The component the DAIs are registered for |
2530 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 2531 | * @count: Number of DAIs |
32c9ba54 LPC |
2532 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
2533 | * parent's name. | |
9115171a | 2534 | */ |
6106d129 | 2535 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
2536 | struct snd_soc_dai_driver *dai_drv, size_t count, |
2537 | bool legacy_dai_naming) | |
9115171a | 2538 | { |
6106d129 | 2539 | struct device *dev = component->dev; |
f0fba2ad | 2540 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
2541 | unsigned int i; |
2542 | int ret; | |
f0fba2ad | 2543 | |
f110bfc7 | 2544 | dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count); |
9115171a | 2545 | |
bb13109d LPC |
2546 | component->dai_drv = dai_drv; |
2547 | component->num_dai = count; | |
2548 | ||
9115171a | 2549 | for (i = 0; i < count; i++) { |
f0fba2ad LG |
2550 | |
2551 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
2552 | if (dai == NULL) { |
2553 | ret = -ENOMEM; | |
2554 | goto err; | |
2555 | } | |
f0fba2ad | 2556 | |
32c9ba54 LPC |
2557 | /* |
2558 | * Back in the old days when we still had component-less DAIs, | |
2559 | * instead of having a static name, component-less DAIs would | |
2560 | * inherit the name of the parent device so it is possible to | |
2561 | * register multiple instances of the DAI. We still need to keep | |
2562 | * the same naming style even though those DAIs are not | |
2563 | * component-less anymore. | |
2564 | */ | |
2565 | if (count == 1 && legacy_dai_naming) { | |
2566 | dai->name = fmt_single_name(dev, &dai->id); | |
2567 | } else { | |
2568 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
2569 | if (dai_drv[i].id) | |
2570 | dai->id = dai_drv[i].id; | |
2571 | else | |
2572 | dai->id = i; | |
2573 | } | |
f0fba2ad LG |
2574 | if (dai->name == NULL) { |
2575 | kfree(dai); | |
32c9ba54 | 2576 | ret = -ENOMEM; |
9115171a | 2577 | goto err; |
f0fba2ad LG |
2578 | } |
2579 | ||
6106d129 | 2580 | dai->component = component; |
f0fba2ad | 2581 | dai->dev = dev; |
f0fba2ad LG |
2582 | dai->driver = &dai_drv[i]; |
2583 | if (!dai->driver->ops) | |
2584 | dai->driver->ops = &null_dai_ops; | |
2585 | ||
1438c2f6 | 2586 | list_add(&dai->list, &component->dai_list); |
054880fe | 2587 | |
32c9ba54 | 2588 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); |
9115171a MB |
2589 | } |
2590 | ||
2591 | return 0; | |
2592 | ||
2593 | err: | |
32c9ba54 | 2594 | snd_soc_unregister_dais(component); |
9115171a MB |
2595 | |
2596 | return ret; | |
2597 | } | |
9115171a | 2598 | |
14e8bdeb LPC |
2599 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
2600 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 2601 | { |
14e8bdeb | 2602 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 2603 | |
14e8bdeb LPC |
2604 | component->driver->seq_notifier(component, type, subseq); |
2605 | } | |
d191bd8d | 2606 | |
14e8bdeb LPC |
2607 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
2608 | int event) | |
2609 | { | |
2610 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 2611 | |
14e8bdeb LPC |
2612 | return component->driver->stream_event(component, event); |
2613 | } | |
e2c330b9 | 2614 | |
bb13109d LPC |
2615 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
2616 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 2617 | { |
ce0fc93a LPC |
2618 | struct snd_soc_dapm_context *dapm; |
2619 | ||
bb13109d LPC |
2620 | component->name = fmt_single_name(dev, &component->id); |
2621 | if (!component->name) { | |
2622 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
2623 | return -ENOMEM; |
2624 | } | |
2625 | ||
bb13109d LPC |
2626 | component->dev = dev; |
2627 | component->driver = driver; | |
61aca564 LPC |
2628 | component->probe = component->driver->probe; |
2629 | component->remove = component->driver->remove; | |
d191bd8d | 2630 | |
ce0fc93a LPC |
2631 | if (!component->dapm_ptr) |
2632 | component->dapm_ptr = &component->dapm; | |
2633 | ||
2634 | dapm = component->dapm_ptr; | |
2635 | dapm->dev = dev; | |
2636 | dapm->component = component; | |
2637 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 2638 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
2639 | if (driver->seq_notifier) |
2640 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
2641 | if (driver->stream_event) | |
2642 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 2643 | |
61aca564 LPC |
2644 | component->controls = driver->controls; |
2645 | component->num_controls = driver->num_controls; | |
2646 | component->dapm_widgets = driver->dapm_widgets; | |
2647 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
2648 | component->dapm_routes = driver->dapm_routes; | |
2649 | component->num_dapm_routes = driver->num_dapm_routes; | |
2650 | ||
bb13109d LPC |
2651 | INIT_LIST_HEAD(&component->dai_list); |
2652 | mutex_init(&component->io_mutex); | |
d191bd8d | 2653 | |
bb13109d LPC |
2654 | return 0; |
2655 | } | |
d191bd8d | 2656 | |
20feb881 | 2657 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 2658 | { |
20feb881 LPC |
2659 | int val_bytes = regmap_get_val_bytes(component->regmap); |
2660 | ||
2661 | /* Errors are legitimate for non-integer byte multiples */ | |
2662 | if (val_bytes > 0) | |
2663 | component->val_bytes = val_bytes; | |
2664 | } | |
2665 | ||
e874bf5f LPC |
2666 | #ifdef CONFIG_REGMAP |
2667 | ||
20feb881 LPC |
2668 | /** |
2669 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
2670 | * @component: The component for which to initialize the regmap instance | |
2671 | * @regmap: The regmap instance that should be used by the component | |
2672 | * | |
2673 | * This function allows deferred assignment of the regmap instance that is | |
2674 | * associated with the component. Only use this if the regmap instance is not | |
2675 | * yet ready when the component is registered. The function must also be called | |
2676 | * before the first IO attempt of the component. | |
2677 | */ | |
2678 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
2679 | struct regmap *regmap) | |
2680 | { | |
2681 | component->regmap = regmap; | |
2682 | snd_soc_component_setup_regmap(component); | |
886f5692 | 2683 | } |
20feb881 LPC |
2684 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
2685 | ||
2686 | /** | |
2687 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
2688 | * @component: The component for which to de-initialize the regmap instance | |
2689 | * | |
2690 | * Calls regmap_exit() on the regmap instance associated to the component and | |
2691 | * removes the regmap instance from the component. | |
2692 | * | |
2693 | * This function should only be used if snd_soc_component_init_regmap() was used | |
2694 | * to initialize the regmap instance. | |
2695 | */ | |
2696 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
2697 | { | |
2698 | regmap_exit(component->regmap); | |
2699 | component->regmap = NULL; | |
2700 | } | |
2701 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 2702 | |
e874bf5f | 2703 | #endif |
886f5692 | 2704 | |
bb13109d LPC |
2705 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
2706 | { | |
20feb881 LPC |
2707 | if (!component->write && !component->read) { |
2708 | if (!component->regmap) | |
2709 | component->regmap = dev_get_regmap(component->dev, NULL); | |
2710 | if (component->regmap) | |
2711 | snd_soc_component_setup_regmap(component); | |
2712 | } | |
886f5692 | 2713 | |
bb13109d LPC |
2714 | list_add(&component->list, &component_list); |
2715 | } | |
d191bd8d | 2716 | |
bb13109d LPC |
2717 | static void snd_soc_component_add(struct snd_soc_component *component) |
2718 | { | |
d191bd8d | 2719 | mutex_lock(&client_mutex); |
bb13109d | 2720 | snd_soc_component_add_unlocked(component); |
d191bd8d | 2721 | mutex_unlock(&client_mutex); |
bb13109d | 2722 | } |
d191bd8d | 2723 | |
bb13109d LPC |
2724 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
2725 | { | |
2726 | snd_soc_unregister_dais(component); | |
2727 | kfree(component->name); | |
2728 | } | |
d191bd8d | 2729 | |
bb13109d LPC |
2730 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
2731 | { | |
2732 | list_del(&component->list); | |
2733 | } | |
d191bd8d | 2734 | |
d191bd8d KM |
2735 | int snd_soc_register_component(struct device *dev, |
2736 | const struct snd_soc_component_driver *cmpnt_drv, | |
2737 | struct snd_soc_dai_driver *dai_drv, | |
2738 | int num_dai) | |
2739 | { | |
2740 | struct snd_soc_component *cmpnt; | |
bb13109d | 2741 | int ret; |
d191bd8d | 2742 | |
bb13109d | 2743 | cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); |
d191bd8d KM |
2744 | if (!cmpnt) { |
2745 | dev_err(dev, "ASoC: Failed to allocate memory\n"); | |
2746 | return -ENOMEM; | |
2747 | } | |
2748 | ||
bb13109d LPC |
2749 | ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); |
2750 | if (ret) | |
2751 | goto err_free; | |
2752 | ||
3d59400f | 2753 | cmpnt->ignore_pmdown_time = true; |
98e639fb | 2754 | cmpnt->registered_as_component = true; |
3d59400f | 2755 | |
bb13109d LPC |
2756 | ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); |
2757 | if (ret < 0) { | |
2758 | dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret); | |
2759 | goto err_cleanup; | |
2760 | } | |
d191bd8d | 2761 | |
bb13109d | 2762 | snd_soc_component_add(cmpnt); |
4da53393 | 2763 | |
bb13109d | 2764 | return 0; |
4da53393 | 2765 | |
bb13109d LPC |
2766 | err_cleanup: |
2767 | snd_soc_component_cleanup(cmpnt); | |
2768 | err_free: | |
2769 | kfree(cmpnt); | |
2770 | return ret; | |
4da53393 | 2771 | } |
bb13109d | 2772 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 2773 | |
d191bd8d KM |
2774 | /** |
2775 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
2776 | * | |
2777 | */ | |
2778 | void snd_soc_unregister_component(struct device *dev) | |
2779 | { | |
2780 | struct snd_soc_component *cmpnt; | |
2781 | ||
34e81ab4 | 2782 | mutex_lock(&client_mutex); |
d191bd8d | 2783 | list_for_each_entry(cmpnt, &component_list, list) { |
98e639fb | 2784 | if (dev == cmpnt->dev && cmpnt->registered_as_component) |
d191bd8d KM |
2785 | goto found; |
2786 | } | |
34e81ab4 | 2787 | mutex_unlock(&client_mutex); |
d191bd8d KM |
2788 | return; |
2789 | ||
2790 | found: | |
34e81ab4 LPC |
2791 | snd_soc_component_del_unlocked(cmpnt); |
2792 | mutex_unlock(&client_mutex); | |
bb13109d LPC |
2793 | snd_soc_component_cleanup(cmpnt); |
2794 | kfree(cmpnt); | |
d191bd8d KM |
2795 | } |
2796 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 2797 | |
f1d45cc3 | 2798 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
2799 | { |
2800 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 2801 | |
f1d45cc3 | 2802 | return platform->driver->probe(platform); |
e2c330b9 LPC |
2803 | } |
2804 | ||
f1d45cc3 | 2805 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
2806 | { |
2807 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
2808 | ||
f1d45cc3 | 2809 | platform->driver->remove(platform); |
d191bd8d | 2810 | } |
d191bd8d | 2811 | |
12a48a8c | 2812 | /** |
71a45cda LPC |
2813 | * snd_soc_add_platform - Add a platform to the ASoC core |
2814 | * @dev: The parent device for the platform | |
2815 | * @platform: The platform to add | |
2816 | * @platform_driver: The driver for the platform | |
12a48a8c | 2817 | */ |
71a45cda | 2818 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 2819 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 2820 | { |
b37f1d12 LPC |
2821 | int ret; |
2822 | ||
bb13109d LPC |
2823 | ret = snd_soc_component_initialize(&platform->component, |
2824 | &platform_drv->component_driver, dev); | |
2825 | if (ret) | |
2826 | return ret; | |
12a48a8c | 2827 | |
f0fba2ad LG |
2828 | platform->dev = dev; |
2829 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
2830 | |
2831 | if (platform_drv->probe) | |
2832 | platform->component.probe = snd_soc_platform_drv_probe; | |
2833 | if (platform_drv->remove) | |
2834 | platform->component.remove = snd_soc_platform_drv_remove; | |
12a48a8c | 2835 | |
81c7cfd1 LPC |
2836 | #ifdef CONFIG_DEBUG_FS |
2837 | platform->component.debugfs_prefix = "platform"; | |
2838 | #endif | |
12a48a8c MB |
2839 | |
2840 | mutex_lock(&client_mutex); | |
bb13109d | 2841 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
2842 | list_add(&platform->list, &platform_list); |
2843 | mutex_unlock(&client_mutex); | |
2844 | ||
f4333203 LPC |
2845 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
2846 | platform->component.name); | |
12a48a8c MB |
2847 | |
2848 | return 0; | |
2849 | } | |
71a45cda | 2850 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
2851 | |
2852 | /** | |
71a45cda | 2853 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 2854 | * |
71a45cda | 2855 | * @platform: platform to register |
12a48a8c | 2856 | */ |
71a45cda LPC |
2857 | int snd_soc_register_platform(struct device *dev, |
2858 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 2859 | { |
f0fba2ad | 2860 | struct snd_soc_platform *platform; |
71a45cda | 2861 | int ret; |
f0fba2ad | 2862 | |
71a45cda | 2863 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 2864 | |
71a45cda LPC |
2865 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
2866 | if (platform == NULL) | |
2867 | return -ENOMEM; | |
2868 | ||
2869 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
2870 | if (ret) | |
2871 | kfree(platform); | |
2872 | ||
2873 | return ret; | |
2874 | } | |
2875 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2876 | ||
2877 | /** | |
2878 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
2879 | * @platform: the platform to remove | |
2880 | */ | |
2881 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
2882 | { | |
b37f1d12 | 2883 | |
12a48a8c MB |
2884 | mutex_lock(&client_mutex); |
2885 | list_del(&platform->list); | |
bb13109d | 2886 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
2887 | mutex_unlock(&client_mutex); |
2888 | ||
71a45cda | 2889 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 2890 | platform->component.name); |
decc27b0 DM |
2891 | |
2892 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
2893 | } |
2894 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
2895 | ||
2896 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
2897 | { | |
2898 | struct snd_soc_platform *platform; | |
2899 | ||
34e81ab4 | 2900 | mutex_lock(&client_mutex); |
71a45cda | 2901 | list_for_each_entry(platform, &platform_list, list) { |
34e81ab4 LPC |
2902 | if (dev == platform->dev) { |
2903 | mutex_unlock(&client_mutex); | |
71a45cda | 2904 | return platform; |
34e81ab4 | 2905 | } |
71a45cda | 2906 | } |
34e81ab4 | 2907 | mutex_unlock(&client_mutex); |
71a45cda LPC |
2908 | |
2909 | return NULL; | |
2910 | } | |
2911 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
2912 | ||
2913 | /** | |
2914 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2915 | * | |
2916 | * @platform: platform to unregister | |
2917 | */ | |
2918 | void snd_soc_unregister_platform(struct device *dev) | |
2919 | { | |
2920 | struct snd_soc_platform *platform; | |
2921 | ||
2922 | platform = snd_soc_lookup_platform(dev); | |
2923 | if (!platform) | |
2924 | return; | |
2925 | ||
2926 | snd_soc_remove_platform(platform); | |
f0fba2ad | 2927 | kfree(platform); |
12a48a8c MB |
2928 | } |
2929 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2930 | ||
151ab22c MB |
2931 | static u64 codec_format_map[] = { |
2932 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
2933 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
2934 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
2935 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
2936 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
2937 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
2938 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2939 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2940 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
2941 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
2942 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
2943 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
2944 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
2945 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
2946 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
2947 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
2948 | }; | |
2949 | ||
2950 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
2951 | * the endianness of the data but we're using the CPU format | |
2952 | * definitions which do need to include endianness so we ensure that | |
2953 | * codec DAIs always have both big and little endian variants set. | |
2954 | */ | |
2955 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
2956 | { | |
2957 | int i; | |
2958 | ||
2959 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
2960 | if (stream->formats & codec_format_map[i]) | |
2961 | stream->formats |= codec_format_map[i]; | |
2962 | } | |
2963 | ||
f1d45cc3 LPC |
2964 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
2965 | { | |
2966 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2967 | ||
2968 | return codec->driver->probe(codec); | |
2969 | } | |
2970 | ||
2971 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
2972 | { | |
2973 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2974 | ||
2975 | codec->driver->remove(codec); | |
2976 | } | |
2977 | ||
e2c330b9 LPC |
2978 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
2979 | unsigned int reg, unsigned int val) | |
2980 | { | |
2981 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2982 | ||
2983 | return codec->driver->write(codec, reg, val); | |
2984 | } | |
2985 | ||
2986 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
2987 | unsigned int reg, unsigned int *val) | |
2988 | { | |
2989 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2990 | ||
2991 | *val = codec->driver->read(codec, reg); | |
2992 | ||
2993 | return 0; | |
2994 | } | |
2995 | ||
68f831c2 LPC |
2996 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
2997 | enum snd_soc_bias_level level) | |
2998 | { | |
2999 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
3000 | ||
3001 | return codec->driver->set_bias_level(codec, level); | |
3002 | } | |
3003 | ||
0d0cf00a MB |
3004 | /** |
3005 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3006 | * | |
ac11a2b3 | 3007 | * @codec: codec to register |
0d0cf00a | 3008 | */ |
f0fba2ad | 3009 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3010 | const struct snd_soc_codec_driver *codec_drv, |
3011 | struct snd_soc_dai_driver *dai_drv, | |
3012 | int num_dai) | |
0d0cf00a | 3013 | { |
f0fba2ad | 3014 | struct snd_soc_codec *codec; |
bb13109d | 3015 | struct snd_soc_dai *dai; |
f0fba2ad | 3016 | int ret, i; |
151ab22c | 3017 | |
f0fba2ad LG |
3018 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3019 | ||
3020 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3021 | if (codec == NULL) | |
3022 | return -ENOMEM; | |
0d0cf00a | 3023 | |
ce0fc93a | 3024 | codec->component.dapm_ptr = &codec->dapm; |
f1d45cc3 | 3025 | codec->component.codec = codec; |
ce0fc93a | 3026 | |
bb13109d LPC |
3027 | ret = snd_soc_component_initialize(&codec->component, |
3028 | &codec_drv->component_driver, dev); | |
3029 | if (ret) | |
3030 | goto err_free; | |
f0fba2ad | 3031 | |
f1d45cc3 LPC |
3032 | if (codec_drv->controls) { |
3033 | codec->component.controls = codec_drv->controls; | |
3034 | codec->component.num_controls = codec_drv->num_controls; | |
3035 | } | |
3036 | if (codec_drv->dapm_widgets) { | |
3037 | codec->component.dapm_widgets = codec_drv->dapm_widgets; | |
3038 | codec->component.num_dapm_widgets = codec_drv->num_dapm_widgets; | |
3039 | } | |
3040 | if (codec_drv->dapm_routes) { | |
3041 | codec->component.dapm_routes = codec_drv->dapm_routes; | |
3042 | codec->component.num_dapm_routes = codec_drv->num_dapm_routes; | |
3043 | } | |
3044 | ||
3045 | if (codec_drv->probe) | |
3046 | codec->component.probe = snd_soc_codec_drv_probe; | |
3047 | if (codec_drv->remove) | |
3048 | codec->component.remove = snd_soc_codec_drv_remove; | |
e2c330b9 LPC |
3049 | if (codec_drv->write) |
3050 | codec->component.write = snd_soc_codec_drv_write; | |
3051 | if (codec_drv->read) | |
3052 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3053 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
5819c2fa | 3054 | codec->dapm.idle_bias_off = codec_drv->idle_bias_off; |
86dbf2ac | 3055 | codec->dapm.suspend_bias_off = codec_drv->suspend_bias_off; |
14e8bdeb LPC |
3056 | if (codec_drv->seq_notifier) |
3057 | codec->dapm.seq_notifier = codec_drv->seq_notifier; | |
68f831c2 LPC |
3058 | if (codec_drv->set_bias_level) |
3059 | codec->dapm.set_bias_level = snd_soc_codec_set_bias_level; | |
7a30a3db DP |
3060 | codec->dev = dev; |
3061 | codec->driver = codec_drv; | |
e2c330b9 | 3062 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3063 | |
81c7cfd1 LPC |
3064 | #ifdef CONFIG_DEBUG_FS |
3065 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3066 | codec->component.debugfs_prefix = "codec"; | |
3067 | #endif | |
3068 | ||
886f5692 LPC |
3069 | if (codec_drv->get_regmap) |
3070 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3071 | |
f0fba2ad LG |
3072 | for (i = 0; i < num_dai; i++) { |
3073 | fixup_codec_formats(&dai_drv[i].playback); | |
3074 | fixup_codec_formats(&dai_drv[i].capture); | |
3075 | } | |
3076 | ||
bb13109d | 3077 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3078 | if (ret < 0) { |
bb13109d LPC |
3079 | dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret); |
3080 | goto err_cleanup; | |
26b01ccd | 3081 | } |
f0fba2ad | 3082 | |
bb13109d LPC |
3083 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3084 | dai->codec = codec; | |
f0fba2ad | 3085 | |
e1328a83 | 3086 | mutex_lock(&client_mutex); |
bb13109d | 3087 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3088 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3089 | mutex_unlock(&client_mutex); |
3090 | ||
f4333203 LPC |
3091 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3092 | codec->component.name); | |
0d0cf00a | 3093 | return 0; |
f0fba2ad | 3094 | |
bb13109d LPC |
3095 | err_cleanup: |
3096 | snd_soc_component_cleanup(&codec->component); | |
3097 | err_free: | |
f0fba2ad LG |
3098 | kfree(codec); |
3099 | return ret; | |
0d0cf00a MB |
3100 | } |
3101 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3102 | ||
3103 | /** | |
3104 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3105 | * | |
ac11a2b3 | 3106 | * @codec: codec to unregister |
0d0cf00a | 3107 | */ |
f0fba2ad | 3108 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3109 | { |
f0fba2ad | 3110 | struct snd_soc_codec *codec; |
f0fba2ad | 3111 | |
34e81ab4 | 3112 | mutex_lock(&client_mutex); |
f0fba2ad LG |
3113 | list_for_each_entry(codec, &codec_list, list) { |
3114 | if (dev == codec->dev) | |
3115 | goto found; | |
3116 | } | |
34e81ab4 | 3117 | mutex_unlock(&client_mutex); |
f0fba2ad LG |
3118 | return; |
3119 | ||
3120 | found: | |
0d0cf00a | 3121 | list_del(&codec->list); |
bb13109d | 3122 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3123 | mutex_unlock(&client_mutex); |
3124 | ||
f4333203 LPC |
3125 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3126 | codec->component.name); | |
f0fba2ad | 3127 | |
bb13109d | 3128 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3129 | snd_soc_cache_exit(codec); |
f0fba2ad | 3130 | kfree(codec); |
0d0cf00a MB |
3131 | } |
3132 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3133 | ||
bec4fa05 SW |
3134 | /* Retrieve a card's name from device tree */ |
3135 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3136 | const char *propname) | |
3137 | { | |
7e07e7c0 | 3138 | struct device_node *np; |
bec4fa05 SW |
3139 | int ret; |
3140 | ||
7e07e7c0 TB |
3141 | if (!card->dev) { |
3142 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3143 | return -EINVAL; | |
3144 | } | |
3145 | ||
3146 | np = card->dev->of_node; | |
3147 | ||
bec4fa05 SW |
3148 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3149 | /* | |
3150 | * EINVAL means the property does not exist. This is fine providing | |
3151 | * card->name was previously set, which is checked later in | |
3152 | * snd_soc_register_card. | |
3153 | */ | |
3154 | if (ret < 0 && ret != -EINVAL) { | |
3155 | dev_err(card->dev, | |
f110bfc7 | 3156 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3157 | propname, ret); |
3158 | return ret; | |
3159 | } | |
3160 | ||
3161 | return 0; | |
3162 | } | |
3163 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3164 | ||
9a6d4860 XL |
3165 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3166 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3167 | SND_SOC_DAPM_LINE("Line", NULL), | |
3168 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3169 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3170 | }; | |
3171 | ||
3172 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, | |
3173 | const char *propname) | |
3174 | { | |
3175 | struct device_node *np = card->dev->of_node; | |
3176 | struct snd_soc_dapm_widget *widgets; | |
3177 | const char *template, *wname; | |
3178 | int i, j, num_widgets, ret; | |
3179 | ||
3180 | num_widgets = of_property_count_strings(np, propname); | |
3181 | if (num_widgets < 0) { | |
3182 | dev_err(card->dev, | |
3183 | "ASoC: Property '%s' does not exist\n", propname); | |
3184 | return -EINVAL; | |
3185 | } | |
3186 | if (num_widgets & 1) { | |
3187 | dev_err(card->dev, | |
3188 | "ASoC: Property '%s' length is not even\n", propname); | |
3189 | return -EINVAL; | |
3190 | } | |
3191 | ||
3192 | num_widgets /= 2; | |
3193 | if (!num_widgets) { | |
3194 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3195 | propname); | |
3196 | return -EINVAL; | |
3197 | } | |
3198 | ||
3199 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3200 | GFP_KERNEL); | |
3201 | if (!widgets) { | |
3202 | dev_err(card->dev, | |
3203 | "ASoC: Could not allocate memory for widgets\n"); | |
3204 | return -ENOMEM; | |
3205 | } | |
3206 | ||
3207 | for (i = 0; i < num_widgets; i++) { | |
3208 | ret = of_property_read_string_index(np, propname, | |
3209 | 2 * i, &template); | |
3210 | if (ret) { | |
3211 | dev_err(card->dev, | |
3212 | "ASoC: Property '%s' index %d read error:%d\n", | |
3213 | propname, 2 * i, ret); | |
3214 | return -EINVAL; | |
3215 | } | |
3216 | ||
3217 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3218 | if (!strncmp(template, simple_widgets[j].name, | |
3219 | strlen(simple_widgets[j].name))) { | |
3220 | widgets[i] = simple_widgets[j]; | |
3221 | break; | |
3222 | } | |
3223 | } | |
3224 | ||
3225 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3226 | dev_err(card->dev, | |
3227 | "ASoC: DAPM widget '%s' is not supported\n", | |
3228 | template); | |
3229 | return -EINVAL; | |
3230 | } | |
3231 | ||
3232 | ret = of_property_read_string_index(np, propname, | |
3233 | (2 * i) + 1, | |
3234 | &wname); | |
3235 | if (ret) { | |
3236 | dev_err(card->dev, | |
3237 | "ASoC: Property '%s' index %d read error:%d\n", | |
3238 | propname, (2 * i) + 1, ret); | |
3239 | return -EINVAL; | |
3240 | } | |
3241 | ||
3242 | widgets[i].name = wname; | |
3243 | } | |
3244 | ||
3245 | card->dapm_widgets = widgets; | |
3246 | card->num_dapm_widgets = num_widgets; | |
3247 | ||
3248 | return 0; | |
3249 | } | |
3250 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); | |
3251 | ||
89c67857 XL |
3252 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
3253 | unsigned int *slots, | |
3254 | unsigned int *slot_width) | |
3255 | { | |
3256 | u32 val; | |
3257 | int ret; | |
3258 | ||
3259 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { | |
3260 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3261 | if (ret) | |
3262 | return ret; | |
3263 | ||
3264 | if (slots) | |
3265 | *slots = val; | |
3266 | } | |
3267 | ||
3268 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3269 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3270 | if (ret) | |
3271 | return ret; | |
3272 | ||
3273 | if (slot_width) | |
3274 | *slot_width = val; | |
3275 | } | |
3276 | ||
3277 | return 0; | |
3278 | } | |
3279 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3280 | ||
a4a54dd5 SW |
3281 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3282 | const char *propname) | |
3283 | { | |
3284 | struct device_node *np = card->dev->of_node; | |
e3b1e6a1 | 3285 | int num_routes; |
a4a54dd5 SW |
3286 | struct snd_soc_dapm_route *routes; |
3287 | int i, ret; | |
3288 | ||
3289 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3290 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3291 | dev_err(card->dev, |
3292 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3293 | propname); | |
a4a54dd5 SW |
3294 | return -EINVAL; |
3295 | } | |
3296 | num_routes /= 2; | |
3297 | if (!num_routes) { | |
f110bfc7 | 3298 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3299 | propname); |
3300 | return -EINVAL; | |
3301 | } | |
3302 | ||
e3b1e6a1 | 3303 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3304 | GFP_KERNEL); |
3305 | if (!routes) { | |
3306 | dev_err(card->dev, | |
f110bfc7 | 3307 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3308 | return -EINVAL; |
3309 | } | |
3310 | ||
3311 | for (i = 0; i < num_routes; i++) { | |
3312 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3313 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3314 | if (ret) { |
c871bd0b MB |
3315 | dev_err(card->dev, |
3316 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3317 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3318 | return -EINVAL; |
3319 | } | |
3320 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3321 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3322 | if (ret) { |
3323 | dev_err(card->dev, | |
c871bd0b MB |
3324 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3325 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3326 | return -EINVAL; |
3327 | } | |
3328 | } | |
3329 | ||
e3b1e6a1 | 3330 | card->num_dapm_routes = num_routes; |
a4a54dd5 SW |
3331 | card->dapm_routes = routes; |
3332 | ||
3333 | return 0; | |
3334 | } | |
3335 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3336 | ||
a7930ed4 | 3337 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3338 | const char *prefix, |
3339 | struct device_node **bitclkmaster, | |
3340 | struct device_node **framemaster) | |
a7930ed4 KM |
3341 | { |
3342 | int ret, i; | |
3343 | char prop[128]; | |
3344 | unsigned int format = 0; | |
3345 | int bit, frame; | |
3346 | const char *str; | |
3347 | struct { | |
3348 | char *name; | |
3349 | unsigned int val; | |
3350 | } of_fmt_table[] = { | |
3351 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3352 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3353 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3354 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3355 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3356 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3357 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3358 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3359 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3360 | }; |
3361 | ||
3362 | if (!prefix) | |
3363 | prefix = ""; | |
3364 | ||
3365 | /* | |
3366 | * check "[prefix]format = xxx" | |
3367 | * SND_SOC_DAIFMT_FORMAT_MASK area | |
3368 | */ | |
3369 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3370 | ret = of_property_read_string(np, prop, &str); | |
3371 | if (ret == 0) { | |
3372 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3373 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3374 | format |= of_fmt_table[i].val; | |
3375 | break; | |
3376 | } | |
3377 | } | |
3378 | } | |
3379 | ||
3380 | /* | |
8c2d6a9f | 3381 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3382 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3383 | */ | |
8c2d6a9f KM |
3384 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
3385 | if (of_get_property(np, prop, NULL)) | |
3386 | format |= SND_SOC_DAIFMT_CONT; | |
3387 | else | |
3388 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3389 | |
3390 | /* | |
3391 | * check "[prefix]bitclock-inversion" | |
3392 | * check "[prefix]frame-inversion" | |
3393 | * SND_SOC_DAIFMT_INV_MASK area | |
3394 | */ | |
3395 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3396 | bit = !!of_get_property(np, prop, NULL); | |
3397 | ||
3398 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3399 | frame = !!of_get_property(np, prop, NULL); | |
3400 | ||
3401 | switch ((bit << 4) + frame) { | |
3402 | case 0x11: | |
3403 | format |= SND_SOC_DAIFMT_IB_IF; | |
3404 | break; | |
3405 | case 0x10: | |
3406 | format |= SND_SOC_DAIFMT_IB_NF; | |
3407 | break; | |
3408 | case 0x01: | |
3409 | format |= SND_SOC_DAIFMT_NB_IF; | |
3410 | break; | |
3411 | default: | |
3412 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
3413 | break; | |
3414 | } | |
3415 | ||
3416 | /* | |
3417 | * check "[prefix]bitclock-master" | |
3418 | * check "[prefix]frame-master" | |
3419 | * SND_SOC_DAIFMT_MASTER_MASK area | |
3420 | */ | |
3421 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
3422 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3423 | if (bit && bitclkmaster) |
3424 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3425 | |
3426 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
3427 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3428 | if (frame && framemaster) |
3429 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3430 | |
3431 | switch ((bit << 4) + frame) { | |
3432 | case 0x11: | |
3433 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
3434 | break; | |
3435 | case 0x10: | |
3436 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
3437 | break; | |
3438 | case 0x01: | |
3439 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
3440 | break; | |
3441 | default: | |
3442 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
3443 | break; | |
3444 | } | |
3445 | ||
3446 | return format; | |
3447 | } | |
3448 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
3449 | ||
93b0f3ee JFM |
3450 | static int snd_soc_get_dai_name(struct of_phandle_args *args, |
3451 | const char **dai_name) | |
cb470087 KM |
3452 | { |
3453 | struct snd_soc_component *pos; | |
93b0f3ee | 3454 | int ret = -EPROBE_DEFER; |
cb470087 KM |
3455 | |
3456 | mutex_lock(&client_mutex); | |
3457 | list_for_each_entry(pos, &component_list, list) { | |
93b0f3ee | 3458 | if (pos->dev->of_node != args->np) |
cb470087 KM |
3459 | continue; |
3460 | ||
6833c452 | 3461 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
3462 | ret = pos->driver->of_xlate_dai_name(pos, |
3463 | args, | |
3464 | dai_name); | |
6833c452 KM |
3465 | } else { |
3466 | int id = -1; | |
3467 | ||
93b0f3ee | 3468 | switch (args->args_count) { |
6833c452 KM |
3469 | case 0: |
3470 | id = 0; /* same as dai_drv[0] */ | |
3471 | break; | |
3472 | case 1: | |
93b0f3ee | 3473 | id = args->args[0]; |
6833c452 KM |
3474 | break; |
3475 | default: | |
3476 | /* not supported */ | |
3477 | break; | |
3478 | } | |
3479 | ||
3480 | if (id < 0 || id >= pos->num_dai) { | |
3481 | ret = -EINVAL; | |
3dcba280 | 3482 | continue; |
6833c452 | 3483 | } |
e41975ed XL |
3484 | |
3485 | ret = 0; | |
3486 | ||
3487 | *dai_name = pos->dai_drv[id].name; | |
3488 | if (!*dai_name) | |
3489 | *dai_name = pos->name; | |
cb470087 KM |
3490 | } |
3491 | ||
cb470087 KM |
3492 | break; |
3493 | } | |
3494 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3495 | return ret; |
3496 | } | |
3497 | ||
3498 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3499 | const char **dai_name) | |
3500 | { | |
3501 | struct of_phandle_args args; | |
3502 | int ret; | |
3503 | ||
3504 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3505 | "#sound-dai-cells", 0, &args); | |
3506 | if (ret) | |
3507 | return ret; | |
3508 | ||
3509 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3510 | |
3511 | of_node_put(args.np); | |
3512 | ||
3513 | return ret; | |
3514 | } | |
3515 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3516 | ||
93b0f3ee JFM |
3517 | /* |
3518 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3519 | * @dev: Card device | |
3520 | * @of_node: Device node | |
3521 | * @dai_link: DAI link | |
3522 | * | |
3523 | * Builds an array of CODEC DAI components from the DAI link property | |
3524 | * 'sound-dai'. | |
3525 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
3526 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
3527 | * | |
3528 | * Returns 0 for success | |
3529 | */ | |
3530 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3531 | struct device_node *of_node, | |
3532 | struct snd_soc_dai_link *dai_link) | |
3533 | { | |
3534 | struct of_phandle_args args; | |
3535 | struct snd_soc_dai_link_component *component; | |
3536 | char *name; | |
3537 | int index, num_codecs, ret; | |
3538 | ||
3539 | /* Count the number of CODECs */ | |
3540 | name = "sound-dai"; | |
3541 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3542 | "#sound-dai-cells"); | |
3543 | if (num_codecs <= 0) { | |
3544 | if (num_codecs == -ENOENT) | |
3545 | dev_err(dev, "No 'sound-dai' property\n"); | |
3546 | else | |
3547 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3548 | return num_codecs; | |
3549 | } | |
3550 | component = devm_kzalloc(dev, | |
3551 | sizeof *component * num_codecs, | |
3552 | GFP_KERNEL); | |
3553 | if (!component) | |
3554 | return -ENOMEM; | |
3555 | dai_link->codecs = component; | |
3556 | dai_link->num_codecs = num_codecs; | |
3557 | ||
3558 | /* Parse the list */ | |
3559 | for (index = 0, component = dai_link->codecs; | |
3560 | index < dai_link->num_codecs; | |
3561 | index++, component++) { | |
3562 | ret = of_parse_phandle_with_args(of_node, name, | |
3563 | "#sound-dai-cells", | |
3564 | index, &args); | |
3565 | if (ret) | |
3566 | goto err; | |
3567 | component->of_node = args.np; | |
3568 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3569 | if (ret < 0) | |
3570 | goto err; | |
3571 | } | |
3572 | return 0; | |
3573 | err: | |
3574 | for (index = 0, component = dai_link->codecs; | |
3575 | index < dai_link->num_codecs; | |
3576 | index++, component++) { | |
3577 | if (!component->of_node) | |
3578 | break; | |
3579 | of_node_put(component->of_node); | |
3580 | component->of_node = NULL; | |
3581 | } | |
3582 | dai_link->codecs = NULL; | |
3583 | dai_link->num_codecs = 0; | |
3584 | return ret; | |
3585 | } | |
3586 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3587 | ||
c9b3a40f | 3588 | static int __init snd_soc_init(void) |
db2a4165 | 3589 | { |
384c89e2 | 3590 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3591 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3592 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
0837fc62 | 3593 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
8a9dab1a | 3594 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3595 | } |
c3c5a19a | 3596 | |
8a9dab1a | 3597 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3598 | &codec_list_fops)) |
3599 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3600 | ||
8a9dab1a | 3601 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3602 | &dai_list_fops)) |
3603 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3604 | |
8a9dab1a | 3605 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3606 | &platform_list_fops)) |
3607 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3608 | #endif |
3609 | ||
fb257897 MB |
3610 | snd_soc_util_init(); |
3611 | ||
db2a4165 FM |
3612 | return platform_driver_register(&soc_driver); |
3613 | } | |
4abe8e16 | 3614 | module_init(snd_soc_init); |
db2a4165 | 3615 | |
7d8c16a6 | 3616 | static void __exit snd_soc_exit(void) |
db2a4165 | 3617 | { |
fb257897 MB |
3618 | snd_soc_util_exit(); |
3619 | ||
384c89e2 | 3620 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3621 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3622 | #endif |
3ff3f64b | 3623 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3624 | } |
db2a4165 FM |
3625 | module_exit(snd_soc_exit); |
3626 | ||
3627 | /* Module information */ | |
d331124d | 3628 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3629 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3630 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3631 | MODULE_ALIAS("platform:soc-audio"); |