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> |
8a978234 | 43 | #include <sound/soc-topology.h> |
db2a4165 FM |
44 | #include <sound/initval.h> |
45 | ||
a8b1d34f MB |
46 | #define CREATE_TRACE_POINTS |
47 | #include <trace/events/asoc.h> | |
48 | ||
f0fba2ad LG |
49 | #define NAME_SIZE 32 |
50 | ||
384c89e2 | 51 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
52 | struct dentry *snd_soc_debugfs_root; |
53 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
54 | #endif |
55 | ||
c5af3a2e | 56 | static DEFINE_MUTEX(client_mutex); |
12a48a8c | 57 | static LIST_HEAD(platform_list); |
0d0cf00a | 58 | static LIST_HEAD(codec_list); |
030e79f6 | 59 | static LIST_HEAD(component_list); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
2bc9a81e DP |
70 | /* returns the minimum number of bytes needed to represent |
71 | * a particular given value */ | |
72 | static int min_bytes_needed(unsigned long val) | |
73 | { | |
74 | int c = 0; | |
75 | int i; | |
76 | ||
77 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
78 | if (val & (1UL << i)) | |
79 | break; | |
80 | c = (sizeof val * 8) - c; | |
81 | if (!c || (c % 8)) | |
82 | c = (c + 8) / 8; | |
83 | else | |
84 | c /= 8; | |
85 | return c; | |
86 | } | |
87 | ||
13fd179f DP |
88 | /* fill buf which is 'len' bytes with a formatted |
89 | * string of the form 'reg: value\n' */ | |
90 | static int format_register_str(struct snd_soc_codec *codec, | |
91 | unsigned int reg, char *buf, size_t len) | |
92 | { | |
00b317a4 SW |
93 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
94 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f | 95 | int ret; |
13fd179f DP |
96 | |
97 | /* +2 for ': ' and + 1 for '\n' */ | |
98 | if (wordsize + regsize + 2 + 1 != len) | |
99 | return -EINVAL; | |
100 | ||
d6b6c2ca TI |
101 | sprintf(buf, "%.*x: ", wordsize, reg); |
102 | buf += wordsize + 2; | |
13fd179f | 103 | |
d6b6c2ca TI |
104 | ret = snd_soc_read(codec, reg); |
105 | if (ret < 0) | |
106 | memset(buf, 'X', regsize); | |
107 | else | |
108 | sprintf(buf, "%.*x", regsize, ret); | |
109 | buf[regsize] = '\n'; | |
110 | /* no NUL-termination needed */ | |
13fd179f DP |
111 | return 0; |
112 | } | |
113 | ||
2624d5fa | 114 | /* codec register dump */ |
13fd179f DP |
115 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
116 | size_t count, loff_t pos) | |
2624d5fa | 117 | { |
13fd179f | 118 | int i, step = 1; |
2bc9a81e | 119 | int wordsize, regsize; |
13fd179f DP |
120 | int len; |
121 | size_t total = 0; | |
122 | loff_t p = 0; | |
2bc9a81e | 123 | |
00b317a4 SW |
124 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
125 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 126 | |
13fd179f DP |
127 | len = wordsize + regsize + 2 + 1; |
128 | ||
f0fba2ad | 129 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
130 | return 0; |
131 | ||
f0fba2ad LG |
132 | if (codec->driver->reg_cache_step) |
133 | step = codec->driver->reg_cache_step; | |
2624d5fa | 134 | |
f0fba2ad | 135 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
20a0ec27 LPC |
136 | /* only support larger than PAGE_SIZE bytes debugfs |
137 | * entries for the default case */ | |
138 | if (p >= pos) { | |
139 | if (total + len >= count - 1) | |
140 | break; | |
141 | format_register_str(codec, i, buf + total, len); | |
142 | total += len; | |
5164d74d | 143 | } |
20a0ec27 | 144 | p += len; |
2624d5fa MB |
145 | } |
146 | ||
13fd179f | 147 | total = min(total, count - 1); |
2624d5fa | 148 | |
13fd179f | 149 | return total; |
2624d5fa | 150 | } |
13fd179f | 151 | |
2624d5fa MB |
152 | static ssize_t codec_reg_show(struct device *dev, |
153 | struct device_attribute *attr, char *buf) | |
154 | { | |
36ae1a96 | 155 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 156 | |
13fd179f | 157 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
158 | } |
159 | ||
160 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
161 | ||
dbe21408 MB |
162 | static ssize_t pmdown_time_show(struct device *dev, |
163 | struct device_attribute *attr, char *buf) | |
164 | { | |
36ae1a96 | 165 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 166 | |
f0fba2ad | 167 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
168 | } |
169 | ||
170 | static ssize_t pmdown_time_set(struct device *dev, | |
171 | struct device_attribute *attr, | |
172 | const char *buf, size_t count) | |
173 | { | |
36ae1a96 | 174 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 175 | int ret; |
dbe21408 | 176 | |
b785a492 | 177 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
178 | if (ret) |
179 | return ret; | |
dbe21408 MB |
180 | |
181 | return count; | |
182 | } | |
183 | ||
184 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
185 | ||
d29697dc TI |
186 | static struct attribute *soc_dev_attrs[] = { |
187 | &dev_attr_codec_reg.attr, | |
188 | &dev_attr_pmdown_time.attr, | |
189 | NULL | |
190 | }; | |
191 | ||
192 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
193 | struct attribute *attr, int idx) | |
194 | { | |
195 | struct device *dev = kobj_to_dev(kobj); | |
196 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
197 | ||
198 | if (attr == &dev_attr_pmdown_time.attr) | |
199 | return attr->mode; /* always visible */ | |
200 | return rtd->codec ? attr->mode : 0; /* enabled only with codec */ | |
201 | } | |
202 | ||
203 | static const struct attribute_group soc_dapm_dev_group = { | |
204 | .attrs = soc_dapm_dev_attrs, | |
205 | .is_visible = soc_dev_attr_is_visible, | |
206 | }; | |
207 | ||
208 | static const struct attribute_group soc_dev_roup = { | |
209 | .attrs = soc_dev_attrs, | |
210 | .is_visible = soc_dev_attr_is_visible, | |
211 | }; | |
212 | ||
213 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
214 | &soc_dapm_dev_group, | |
215 | &soc_dev_roup, | |
216 | NULL | |
217 | }; | |
218 | ||
2624d5fa | 219 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 220 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 221 | size_t count, loff_t *ppos) |
2624d5fa MB |
222 | { |
223 | ssize_t ret; | |
224 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
225 | char *buf; |
226 | ||
227 | if (*ppos < 0 || !count) | |
228 | return -EINVAL; | |
229 | ||
230 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
231 | if (!buf) |
232 | return -ENOMEM; | |
13fd179f DP |
233 | |
234 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
235 | if (ret >= 0) { | |
236 | if (copy_to_user(user_buf, buf, ret)) { | |
237 | kfree(buf); | |
238 | return -EFAULT; | |
239 | } | |
240 | *ppos += ret; | |
241 | } | |
242 | ||
2624d5fa MB |
243 | kfree(buf); |
244 | return ret; | |
245 | } | |
246 | ||
247 | static ssize_t codec_reg_write_file(struct file *file, | |
248 | const char __user *user_buf, size_t count, loff_t *ppos) | |
249 | { | |
250 | char buf[32]; | |
34e268d8 | 251 | size_t buf_size; |
2624d5fa MB |
252 | char *start = buf; |
253 | unsigned long reg, value; | |
2624d5fa | 254 | struct snd_soc_codec *codec = file->private_data; |
b785a492 | 255 | int ret; |
2624d5fa MB |
256 | |
257 | buf_size = min(count, (sizeof(buf)-1)); | |
258 | if (copy_from_user(buf, user_buf, buf_size)) | |
259 | return -EFAULT; | |
260 | buf[buf_size] = 0; | |
2624d5fa MB |
261 | |
262 | while (*start == ' ') | |
263 | start++; | |
264 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
265 | while (*start == ' ') |
266 | start++; | |
b785a492 JH |
267 | ret = kstrtoul(start, 16, &value); |
268 | if (ret) | |
269 | return ret; | |
0d51a9cb MB |
270 | |
271 | /* Userspace has been fiddling around behind the kernel's back */ | |
373d4d09 | 272 | add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE); |
0d51a9cb | 273 | |
e4f078d8 | 274 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
275 | return buf_size; |
276 | } | |
277 | ||
278 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 279 | .open = simple_open, |
2624d5fa MB |
280 | .read = codec_reg_read_file, |
281 | .write = codec_reg_write_file, | |
6038f373 | 282 | .llseek = default_llseek, |
2624d5fa MB |
283 | }; |
284 | ||
81c7cfd1 | 285 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 286 | { |
6553bf06 LPC |
287 | if (!component->card->debugfs_card_root) |
288 | return; | |
289 | ||
81c7cfd1 LPC |
290 | if (component->debugfs_prefix) { |
291 | char *name; | |
e73f3de5 | 292 | |
81c7cfd1 LPC |
293 | name = kasprintf(GFP_KERNEL, "%s:%s", |
294 | component->debugfs_prefix, component->name); | |
295 | if (name) { | |
296 | component->debugfs_root = debugfs_create_dir(name, | |
297 | component->card->debugfs_card_root); | |
298 | kfree(name); | |
299 | } | |
300 | } else { | |
301 | component->debugfs_root = debugfs_create_dir(component->name, | |
302 | component->card->debugfs_card_root); | |
303 | } | |
e73f3de5 | 304 | |
81c7cfd1 LPC |
305 | if (!component->debugfs_root) { |
306 | dev_warn(component->dev, | |
307 | "ASoC: Failed to create component debugfs directory\n"); | |
308 | return; | |
309 | } | |
e73f3de5 | 310 | |
81c7cfd1 LPC |
311 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
312 | component->debugfs_root); | |
e73f3de5 | 313 | |
81c7cfd1 LPC |
314 | if (component->init_debugfs) |
315 | component->init_debugfs(component); | |
e73f3de5 RK |
316 | } |
317 | ||
81c7cfd1 | 318 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 319 | { |
81c7cfd1 LPC |
320 | debugfs_remove_recursive(component->debugfs_root); |
321 | } | |
d6ce4cf3 | 322 | |
81c7cfd1 LPC |
323 | static void soc_init_codec_debugfs(struct snd_soc_component *component) |
324 | { | |
325 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2624d5fa MB |
326 | |
327 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
81c7cfd1 | 328 | codec->component.debugfs_root, |
2624d5fa MB |
329 | codec, &codec_reg_fops); |
330 | if (!codec->debugfs_reg) | |
10e8aa9a MM |
331 | dev_warn(codec->dev, |
332 | "ASoC: Failed to create codec register debugfs file\n"); | |
731f1ab2 SG |
333 | } |
334 | ||
c3c5a19a MB |
335 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
336 | size_t count, loff_t *ppos) | |
337 | { | |
338 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 339 | ssize_t len, ret = 0; |
c3c5a19a MB |
340 | struct snd_soc_codec *codec; |
341 | ||
342 | if (!buf) | |
343 | return -ENOMEM; | |
344 | ||
34e81ab4 LPC |
345 | mutex_lock(&client_mutex); |
346 | ||
2b194f9d MB |
347 | list_for_each_entry(codec, &codec_list, list) { |
348 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 349 | codec->component.name); |
2b194f9d MB |
350 | if (len >= 0) |
351 | ret += len; | |
352 | if (ret > PAGE_SIZE) { | |
353 | ret = PAGE_SIZE; | |
354 | break; | |
355 | } | |
356 | } | |
c3c5a19a | 357 | |
34e81ab4 LPC |
358 | mutex_unlock(&client_mutex); |
359 | ||
c3c5a19a MB |
360 | if (ret >= 0) |
361 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
362 | ||
363 | kfree(buf); | |
364 | ||
365 | return ret; | |
366 | } | |
367 | ||
368 | static const struct file_operations codec_list_fops = { | |
369 | .read = codec_list_read_file, | |
370 | .llseek = default_llseek,/* read accesses f_pos */ | |
371 | }; | |
372 | ||
f3208780 MB |
373 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
374 | size_t count, loff_t *ppos) | |
375 | { | |
376 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 377 | ssize_t len, ret = 0; |
1438c2f6 | 378 | struct snd_soc_component *component; |
f3208780 MB |
379 | struct snd_soc_dai *dai; |
380 | ||
381 | if (!buf) | |
382 | return -ENOMEM; | |
383 | ||
34e81ab4 LPC |
384 | mutex_lock(&client_mutex); |
385 | ||
1438c2f6 LPC |
386 | list_for_each_entry(component, &component_list, list) { |
387 | list_for_each_entry(dai, &component->dai_list, list) { | |
388 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
389 | dai->name); | |
390 | if (len >= 0) | |
391 | ret += len; | |
392 | if (ret > PAGE_SIZE) { | |
393 | ret = PAGE_SIZE; | |
394 | break; | |
395 | } | |
2b194f9d MB |
396 | } |
397 | } | |
f3208780 | 398 | |
34e81ab4 LPC |
399 | mutex_unlock(&client_mutex); |
400 | ||
2b194f9d | 401 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
402 | |
403 | kfree(buf); | |
404 | ||
405 | return ret; | |
406 | } | |
407 | ||
408 | static const struct file_operations dai_list_fops = { | |
409 | .read = dai_list_read_file, | |
410 | .llseek = default_llseek,/* read accesses f_pos */ | |
411 | }; | |
412 | ||
19c7ac27 MB |
413 | static ssize_t platform_list_read_file(struct file *file, |
414 | char __user *user_buf, | |
415 | size_t count, loff_t *ppos) | |
416 | { | |
417 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 418 | ssize_t len, ret = 0; |
19c7ac27 MB |
419 | struct snd_soc_platform *platform; |
420 | ||
421 | if (!buf) | |
422 | return -ENOMEM; | |
423 | ||
34e81ab4 LPC |
424 | mutex_lock(&client_mutex); |
425 | ||
2b194f9d MB |
426 | list_for_each_entry(platform, &platform_list, list) { |
427 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 428 | platform->component.name); |
2b194f9d MB |
429 | if (len >= 0) |
430 | ret += len; | |
431 | if (ret > PAGE_SIZE) { | |
432 | ret = PAGE_SIZE; | |
433 | break; | |
434 | } | |
435 | } | |
19c7ac27 | 436 | |
34e81ab4 LPC |
437 | mutex_unlock(&client_mutex); |
438 | ||
2b194f9d | 439 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
440 | |
441 | kfree(buf); | |
442 | ||
443 | return ret; | |
444 | } | |
445 | ||
446 | static const struct file_operations platform_list_fops = { | |
447 | .read = platform_list_read_file, | |
448 | .llseek = default_llseek,/* read accesses f_pos */ | |
449 | }; | |
450 | ||
a6052154 JN |
451 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
452 | { | |
6553bf06 LPC |
453 | if (!snd_soc_debugfs_root) |
454 | return; | |
455 | ||
a6052154 | 456 | card->debugfs_card_root = debugfs_create_dir(card->name, |
8a9dab1a | 457 | snd_soc_debugfs_root); |
3a45b867 | 458 | if (!card->debugfs_card_root) { |
a6052154 | 459 | dev_warn(card->dev, |
7c08be84 | 460 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
461 | return; |
462 | } | |
463 | ||
464 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
465 | card->debugfs_card_root, | |
466 | &card->pop_time); | |
467 | if (!card->debugfs_pop_time) | |
468 | dev_warn(card->dev, | |
f110bfc7 | 469 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
470 | } |
471 | ||
472 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
473 | { | |
474 | debugfs_remove_recursive(card->debugfs_card_root); | |
475 | } | |
476 | ||
6553bf06 LPC |
477 | |
478 | static void snd_soc_debugfs_init(void) | |
479 | { | |
480 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); | |
481 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
482 | pr_warn("ASoC: Failed to create debugfs directory\n"); | |
483 | snd_soc_debugfs_root = NULL; | |
484 | return; | |
485 | } | |
486 | ||
487 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, | |
488 | &codec_list_fops)) | |
489 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
490 | ||
491 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, | |
492 | &dai_list_fops)) | |
493 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
494 | ||
495 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, | |
496 | &platform_list_fops)) | |
497 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
498 | } | |
499 | ||
500 | static void snd_soc_debugfs_exit(void) | |
501 | { | |
502 | debugfs_remove_recursive(snd_soc_debugfs_root); | |
503 | } | |
504 | ||
2624d5fa MB |
505 | #else |
506 | ||
81c7cfd1 | 507 | #define soc_init_codec_debugfs NULL |
b95fccbc | 508 | |
81c7cfd1 LPC |
509 | static inline void soc_init_component_debugfs( |
510 | struct snd_soc_component *component) | |
731f1ab2 SG |
511 | { |
512 | } | |
513 | ||
81c7cfd1 LPC |
514 | static inline void soc_cleanup_component_debugfs( |
515 | struct snd_soc_component *component) | |
731f1ab2 SG |
516 | { |
517 | } | |
518 | ||
b95fccbc AL |
519 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
520 | { | |
521 | } | |
522 | ||
523 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
524 | { | |
525 | } | |
6553bf06 LPC |
526 | |
527 | static inline void snd_soc_debugfs_init(void) | |
528 | { | |
529 | } | |
530 | ||
531 | static inline void snd_soc_debugfs_exit(void) | |
532 | { | |
533 | } | |
534 | ||
2624d5fa MB |
535 | #endif |
536 | ||
47c88fff LG |
537 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
538 | const char *dai_link, int stream) | |
539 | { | |
1a497983 | 540 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 541 | |
1a497983 ML |
542 | list_for_each_entry(rtd, &card->rtd_list, list) { |
543 | if (rtd->dai_link->no_pcm && | |
544 | !strcmp(rtd->dai_link->name, dai_link)) | |
545 | return rtd->pcm->streams[stream].substream; | |
47c88fff | 546 | } |
f110bfc7 | 547 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
548 | return NULL; |
549 | } | |
550 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
551 | ||
1a497983 ML |
552 | static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( |
553 | struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) | |
554 | { | |
555 | struct snd_soc_pcm_runtime *rtd; | |
556 | ||
557 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
558 | if (!rtd) | |
559 | return NULL; | |
560 | ||
561 | rtd->card = card; | |
562 | rtd->dai_link = dai_link; | |
563 | rtd->codec_dais = kzalloc(sizeof(struct snd_soc_dai *) * | |
564 | dai_link->num_codecs, | |
565 | GFP_KERNEL); | |
566 | if (!rtd->codec_dais) { | |
567 | kfree(rtd); | |
568 | return NULL; | |
569 | } | |
570 | ||
571 | return rtd; | |
572 | } | |
573 | ||
574 | static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) | |
575 | { | |
576 | if (rtd && rtd->codec_dais) | |
577 | kfree(rtd->codec_dais); | |
578 | kfree(rtd); | |
579 | } | |
580 | ||
581 | static void soc_add_pcm_runtime(struct snd_soc_card *card, | |
582 | struct snd_soc_pcm_runtime *rtd) | |
583 | { | |
584 | list_add_tail(&rtd->list, &card->rtd_list); | |
585 | rtd->num = card->num_rtd; | |
586 | card->num_rtd++; | |
587 | } | |
588 | ||
589 | static void soc_remove_pcm_runtimes(struct snd_soc_card *card) | |
590 | { | |
591 | struct snd_soc_pcm_runtime *rtd, *_rtd; | |
592 | ||
593 | list_for_each_entry_safe(rtd, _rtd, &card->rtd_list, list) { | |
594 | list_del(&rtd->list); | |
595 | soc_free_pcm_runtime(rtd); | |
596 | } | |
597 | ||
598 | card->num_rtd = 0; | |
599 | } | |
600 | ||
47c88fff LG |
601 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, |
602 | const char *dai_link) | |
603 | { | |
1a497983 | 604 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 605 | |
1a497983 ML |
606 | list_for_each_entry(rtd, &card->rtd_list, list) { |
607 | if (!strcmp(rtd->dai_link->name, dai_link)) | |
608 | return rtd; | |
47c88fff | 609 | } |
f110bfc7 | 610 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
611 | return NULL; |
612 | } | |
613 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
614 | ||
9d58a077 RF |
615 | static void codec2codec_close_delayed_work(struct work_struct *work) |
616 | { | |
617 | /* Currently nothing to do for c2c links | |
618 | * Since c2c links are internal nodes in the DAPM graph and | |
619 | * don't interface with the outside world or application layer | |
620 | * we don't have to do any special handling on close. | |
621 | */ | |
622 | } | |
623 | ||
6f8ab4ac | 624 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 625 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 626 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 627 | { |
6f8ab4ac | 628 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 629 | struct snd_soc_codec *codec; |
1a497983 ML |
630 | struct snd_soc_pcm_runtime *rtd; |
631 | int i; | |
db2a4165 | 632 | |
c5599b87 LPC |
633 | /* If the card is not initialized yet there is nothing to do */ |
634 | if (!card->instantiated) | |
e3509ff0 DM |
635 | return 0; |
636 | ||
6ed25978 AG |
637 | /* Due to the resume being scheduled into a workqueue we could |
638 | * suspend before that's finished - wait for it to complete. | |
639 | */ | |
f0fba2ad LG |
640 | snd_power_lock(card->snd_card); |
641 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
642 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
643 | |
644 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 645 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 646 | |
a00f90f9 | 647 | /* mute any active DACs */ |
1a497983 | 648 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 649 | |
1a497983 | 650 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
651 | continue; |
652 | ||
1a497983 ML |
653 | for (i = 0; i < rtd->num_codecs; i++) { |
654 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
655 | struct snd_soc_dai_driver *drv = dai->driver; |
656 | ||
657 | if (drv->ops->digital_mute && dai->playback_active) | |
658 | drv->ops->digital_mute(dai, 1); | |
659 | } | |
db2a4165 FM |
660 | } |
661 | ||
4ccab3e7 | 662 | /* suspend all pcms */ |
1a497983 ML |
663 | list_for_each_entry(rtd, &card->rtd_list, list) { |
664 | if (rtd->dai_link->ignore_suspend) | |
3efab7dc MB |
665 | continue; |
666 | ||
1a497983 | 667 | snd_pcm_suspend_all(rtd->pcm); |
3efab7dc | 668 | } |
4ccab3e7 | 669 | |
87506549 | 670 | if (card->suspend_pre) |
70b2ac12 | 671 | card->suspend_pre(card); |
db2a4165 | 672 | |
1a497983 ML |
673 | list_for_each_entry(rtd, &card->rtd_list, list) { |
674 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 675 | |
1a497983 | 676 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
677 | continue; |
678 | ||
bc263214 | 679 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 680 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
681 | } |
682 | ||
37660b6d | 683 | /* close any waiting streams */ |
1a497983 ML |
684 | list_for_each_entry(rtd, &card->rtd_list, list) |
685 | flush_delayed_work(&rtd->delayed_work); | |
db2a4165 | 686 | |
1a497983 | 687 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 688 | |
1a497983 | 689 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
690 | continue; |
691 | ||
1a497983 | 692 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 693 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 694 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 695 | |
1a497983 | 696 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 697 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 698 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
699 | } |
700 | ||
8be4da29 LPC |
701 | /* Recheck all endpoints too, their state is affected by suspend */ |
702 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
703 | snd_soc_dapm_sync(&card->dapm); |
704 | ||
f0fba2ad | 705 | /* suspend all CODECs */ |
2eea392d | 706 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
4890140f LPC |
707 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); |
708 | ||
f0fba2ad LG |
709 | /* If there are paths active then the CODEC will be held with |
710 | * bias _ON and should not be suspended. */ | |
a8093297 | 711 | if (!codec->suspended) { |
4890140f | 712 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
f0fba2ad | 713 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
714 | /* |
715 | * If the CODEC is capable of idle | |
716 | * bias off then being in STANDBY | |
717 | * means it's doing something, | |
718 | * otherwise fall through. | |
719 | */ | |
4890140f | 720 | if (dapm->idle_bias_off) { |
125a25da | 721 | dev_dbg(codec->dev, |
10e8aa9a | 722 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
723 | break; |
724 | } | |
a8093297 | 725 | |
f0fba2ad | 726 | case SND_SOC_BIAS_OFF: |
a8093297 LPC |
727 | if (codec->driver->suspend) |
728 | codec->driver->suspend(codec); | |
f0fba2ad | 729 | codec->suspended = 1; |
e2c330b9 LPC |
730 | if (codec->component.regmap) |
731 | regcache_mark_dirty(codec->component.regmap); | |
988e8cc4 NC |
732 | /* deactivate pins to sleep state */ |
733 | pinctrl_pm_select_sleep_state(codec->dev); | |
f0fba2ad LG |
734 | break; |
735 | default: | |
10e8aa9a MM |
736 | dev_dbg(codec->dev, |
737 | "ASoC: CODEC is on over suspend\n"); | |
f0fba2ad LG |
738 | break; |
739 | } | |
1547aba9 MB |
740 | } |
741 | } | |
db2a4165 | 742 | |
1a497983 ML |
743 | list_for_each_entry(rtd, &card->rtd_list, list) { |
744 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 745 | |
1a497983 | 746 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
747 | continue; |
748 | ||
bc263214 | 749 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 750 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
751 | |
752 | /* deactivate pins to sleep state */ | |
753 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
754 | } |
755 | ||
87506549 | 756 | if (card->suspend_post) |
70b2ac12 | 757 | card->suspend_post(card); |
db2a4165 FM |
758 | |
759 | return 0; | |
760 | } | |
6f8ab4ac | 761 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 762 | |
6ed25978 AG |
763 | /* deferred resume work, so resume can complete before we finished |
764 | * setting our codec back up, which can be very slow on I2C | |
765 | */ | |
766 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 767 | { |
f0fba2ad LG |
768 | struct snd_soc_card *card = |
769 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1a497983 | 770 | struct snd_soc_pcm_runtime *rtd; |
2eea392d | 771 | struct snd_soc_codec *codec; |
1a497983 | 772 | int i; |
db2a4165 | 773 | |
6ed25978 AG |
774 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
775 | * so userspace apps are blocked from touching us | |
776 | */ | |
777 | ||
f110bfc7 | 778 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 779 | |
9949788b | 780 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 781 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 782 | |
87506549 | 783 | if (card->resume_pre) |
70b2ac12 | 784 | card->resume_pre(card); |
db2a4165 | 785 | |
bc263214 | 786 | /* resume control bus DAIs */ |
1a497983 ML |
787 | list_for_each_entry(rtd, &card->rtd_list, list) { |
788 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 789 | |
1a497983 | 790 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
791 | continue; |
792 | ||
bc263214 | 793 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
794 | cpu_dai->driver->resume(cpu_dai); |
795 | } | |
796 | ||
2eea392d | 797 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
a8093297 | 798 | if (codec->suspended) { |
b8faaba4 LPC |
799 | if (codec->driver->resume) |
800 | codec->driver->resume(codec); | |
801 | codec->suspended = 0; | |
1547aba9 MB |
802 | } |
803 | } | |
db2a4165 | 804 | |
1a497983 | 805 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 806 | |
1a497983 | 807 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
808 | continue; |
809 | ||
1a497983 | 810 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 811 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 812 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 813 | |
1a497983 | 814 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 815 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 816 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
817 | } |
818 | ||
3ff3f64b | 819 | /* unmute any active DACs */ |
1a497983 | 820 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 821 | |
1a497983 | 822 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
823 | continue; |
824 | ||
1a497983 ML |
825 | for (i = 0; i < rtd->num_codecs; i++) { |
826 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
827 | struct snd_soc_dai_driver *drv = dai->driver; |
828 | ||
829 | if (drv->ops->digital_mute && dai->playback_active) | |
830 | drv->ops->digital_mute(dai, 0); | |
831 | } | |
db2a4165 FM |
832 | } |
833 | ||
1a497983 ML |
834 | list_for_each_entry(rtd, &card->rtd_list, list) { |
835 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 836 | |
1a497983 | 837 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
838 | continue; |
839 | ||
bc263214 | 840 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 841 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
842 | } |
843 | ||
87506549 | 844 | if (card->resume_post) |
70b2ac12 | 845 | card->resume_post(card); |
db2a4165 | 846 | |
f110bfc7 | 847 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 | 848 | |
8be4da29 LPC |
849 | /* Recheck all endpoints too, their state is affected by suspend */ |
850 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 851 | snd_soc_dapm_sync(&card->dapm); |
1a7aaa58 JK |
852 | |
853 | /* userspace can access us now we are back as we were before */ | |
854 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); | |
6ed25978 AG |
855 | } |
856 | ||
857 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 858 | int snd_soc_resume(struct device *dev) |
6ed25978 | 859 | { |
6f8ab4ac | 860 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 | 861 | bool bus_control = false; |
1a497983 | 862 | struct snd_soc_pcm_runtime *rtd; |
b9dd94a8 | 863 | |
c5599b87 LPC |
864 | /* If the card is not initialized yet there is nothing to do */ |
865 | if (!card->instantiated) | |
5ff1ddf2 EM |
866 | return 0; |
867 | ||
988e8cc4 | 868 | /* activate pins from sleep state */ |
1a497983 | 869 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
870 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
871 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
872 | int j; | |
873 | ||
988e8cc4 NC |
874 | if (cpu_dai->active) |
875 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
876 | |
877 | for (j = 0; j < rtd->num_codecs; j++) { | |
878 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
879 | if (codec_dai->active) | |
880 | pinctrl_pm_select_default_state(codec_dai->dev); | |
881 | } | |
988e8cc4 NC |
882 | } |
883 | ||
bc263214 LPC |
884 | /* |
885 | * DAIs that also act as the control bus master might have other drivers | |
886 | * hanging off them so need to resume immediately. Other drivers don't | |
887 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
888 | * due to I/O costs and anti-pop so handle them out of line. |
889 | */ | |
1a497983 ML |
890 | list_for_each_entry(rtd, &card->rtd_list, list) { |
891 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
bc263214 | 892 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 893 | } |
bc263214 LPC |
894 | if (bus_control) { |
895 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
896 | soc_resume_deferred(&card->deferred_resume_work); |
897 | } else { | |
f110bfc7 | 898 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 899 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 900 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 901 | } |
6ed25978 | 902 | |
db2a4165 FM |
903 | return 0; |
904 | } | |
6f8ab4ac | 905 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 906 | #else |
6f8ab4ac MB |
907 | #define snd_soc_suspend NULL |
908 | #define snd_soc_resume NULL | |
db2a4165 FM |
909 | #endif |
910 | ||
85e7652d | 911 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
912 | }; |
913 | ||
65d9361f LPC |
914 | static struct snd_soc_component *soc_find_component( |
915 | const struct device_node *of_node, const char *name) | |
12023a9a | 916 | { |
65d9361f | 917 | struct snd_soc_component *component; |
12023a9a | 918 | |
34e81ab4 LPC |
919 | lockdep_assert_held(&client_mutex); |
920 | ||
65d9361f LPC |
921 | list_for_each_entry(component, &component_list, list) { |
922 | if (of_node) { | |
923 | if (component->dev->of_node == of_node) | |
924 | return component; | |
925 | } else if (strcmp(component->name, name) == 0) { | |
926 | return component; | |
12023a9a | 927 | } |
12023a9a MLC |
928 | } |
929 | ||
930 | return NULL; | |
931 | } | |
932 | ||
fbb88b5c ML |
933 | /** |
934 | * snd_soc_find_dai - Find a registered DAI | |
935 | * | |
936 | * @dlc: name of the DAI and optional component info to match | |
937 | * | |
938 | * This function will search all regsitered components and their DAIs to | |
939 | * find the DAI of the same name. The component's of_node and name | |
940 | * should also match if being specified. | |
941 | * | |
942 | * Return: pointer of DAI, or NULL if not found. | |
943 | */ | |
305e9020 | 944 | struct snd_soc_dai *snd_soc_find_dai( |
14621c7e | 945 | const struct snd_soc_dai_link_component *dlc) |
12023a9a | 946 | { |
14621c7e LPC |
947 | struct snd_soc_component *component; |
948 | struct snd_soc_dai *dai; | |
3e0aa8d8 | 949 | struct device_node *component_of_node; |
12023a9a | 950 | |
34e81ab4 LPC |
951 | lockdep_assert_held(&client_mutex); |
952 | ||
14621c7e LPC |
953 | /* Find CPU DAI from registered DAIs*/ |
954 | list_for_each_entry(component, &component_list, list) { | |
3e0aa8d8 JS |
955 | component_of_node = component->dev->of_node; |
956 | if (!component_of_node && component->dev->parent) | |
957 | component_of_node = component->dev->parent->of_node; | |
958 | ||
959 | if (dlc->of_node && component_of_node != dlc->of_node) | |
14621c7e | 960 | continue; |
1ffae361 | 961 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
962 | continue; |
963 | list_for_each_entry(dai, &component->dai_list, list) { | |
964 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 965 | continue; |
12023a9a | 966 | |
14621c7e | 967 | return dai; |
12023a9a MLC |
968 | } |
969 | } | |
970 | ||
971 | return NULL; | |
972 | } | |
305e9020 | 973 | EXPORT_SYMBOL_GPL(snd_soc_find_dai); |
12023a9a | 974 | |
49a5ba1c ML |
975 | static bool soc_is_dai_link_bound(struct snd_soc_card *card, |
976 | struct snd_soc_dai_link *dai_link) | |
977 | { | |
978 | struct snd_soc_pcm_runtime *rtd; | |
979 | ||
980 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
981 | if (rtd->dai_link == dai_link) | |
982 | return true; | |
983 | } | |
984 | ||
985 | return false; | |
986 | } | |
987 | ||
6f2f1ff0 ML |
988 | static int soc_bind_dai_link(struct snd_soc_card *card, |
989 | struct snd_soc_dai_link *dai_link) | |
db2a4165 | 990 | { |
1a497983 | 991 | struct snd_soc_pcm_runtime *rtd; |
88bd870f | 992 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 993 | struct snd_soc_dai_link_component cpu_dai_component; |
1a497983 | 994 | struct snd_soc_dai **codec_dais; |
435c5e25 | 995 | struct snd_soc_platform *platform; |
848dd8be | 996 | const char *platform_name; |
88bd870f | 997 | int i; |
435c5e25 | 998 | |
6f2f1ff0 | 999 | dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); |
435c5e25 | 1000 | |
49a5ba1c ML |
1001 | if (soc_is_dai_link_bound(card, dai_link)) { |
1002 | dev_dbg(card->dev, "ASoC: dai link %s already bound\n", | |
1003 | dai_link->name); | |
1004 | return 0; | |
1005 | } | |
435c5e25 | 1006 | |
513cb311 SM |
1007 | rtd = soc_new_pcm_runtime(card, dai_link); |
1008 | if (!rtd) | |
1009 | return -ENOMEM; | |
1010 | ||
14621c7e LPC |
1011 | cpu_dai_component.name = dai_link->cpu_name; |
1012 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
1013 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
1014 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 1015 | if (!rtd->cpu_dai) { |
f110bfc7 | 1016 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b | 1017 | dai_link->cpu_dai_name); |
1a497983 | 1018 | goto _err_defer; |
f0fba2ad LG |
1019 | } |
1020 | ||
88bd870f | 1021 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 1022 | |
88bd870f | 1023 | /* Find CODEC from registered CODECs */ |
1a497983 | 1024 | codec_dais = rtd->codec_dais; |
88bd870f | 1025 | for (i = 0; i < rtd->num_codecs; i++) { |
14621c7e | 1026 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
1027 | if (!codec_dais[i]) { |
1028 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
1029 | codecs[i].dai_name); | |
1a497983 | 1030 | goto _err_defer; |
88bd870f | 1031 | } |
12023a9a MLC |
1032 | } |
1033 | ||
88bd870f BC |
1034 | /* Single codec links expect codec and codec_dai in runtime data */ |
1035 | rtd->codec_dai = codec_dais[0]; | |
1036 | rtd->codec = rtd->codec_dai->codec; | |
1037 | ||
848dd8be MB |
1038 | /* if there's no platform we match on the empty platform */ |
1039 | platform_name = dai_link->platform_name; | |
5a504963 | 1040 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
1041 | platform_name = "snd-soc-dummy"; |
1042 | ||
b19e6e7b | 1043 | /* find one from the set of registered platforms */ |
f0fba2ad | 1044 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
1045 | if (dai_link->platform_of_node) { |
1046 | if (platform->dev->of_node != | |
1047 | dai_link->platform_of_node) | |
1048 | continue; | |
1049 | } else { | |
f4333203 | 1050 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
1051 | continue; |
1052 | } | |
2610ab77 SW |
1053 | |
1054 | rtd->platform = platform; | |
02a06d30 | 1055 | } |
b19e6e7b | 1056 | if (!rtd->platform) { |
f110bfc7 | 1057 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 1058 | dai_link->platform_name); |
70fcad49 | 1059 | goto _err_defer; |
f0fba2ad | 1060 | } |
b19e6e7b | 1061 | |
1a497983 | 1062 | soc_add_pcm_runtime(card, rtd); |
b19e6e7b | 1063 | return 0; |
1a497983 ML |
1064 | |
1065 | _err_defer: | |
1066 | soc_free_pcm_runtime(rtd); | |
1067 | return -EPROBE_DEFER; | |
f0fba2ad LG |
1068 | } |
1069 | ||
f1d45cc3 | 1070 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 1071 | { |
abd31b32 | 1072 | if (!component->card) |
70090bbb | 1073 | return; |
d12cd198 | 1074 | |
f1d45cc3 LPC |
1075 | /* This is a HACK and will be removed soon */ |
1076 | if (component->codec) | |
1077 | list_del(&component->codec->card_list); | |
589c3563 | 1078 | |
f1d45cc3 LPC |
1079 | if (component->remove) |
1080 | component->remove(component); | |
589c3563 | 1081 | |
f1d45cc3 | 1082 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 1083 | |
f1d45cc3 | 1084 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1085 | component->card = NULL; |
f1d45cc3 | 1086 | module_put(component->dev->driver->owner); |
589c3563 JN |
1087 | } |
1088 | ||
e60cd14f | 1089 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 1090 | { |
f0fba2ad LG |
1091 | int err; |
1092 | ||
e60cd14f LPC |
1093 | if (dai && dai->probed && |
1094 | dai->driver->remove_order == order) { | |
1095 | if (dai->driver->remove) { | |
1096 | err = dai->driver->remove(dai); | |
f0fba2ad | 1097 | if (err < 0) |
e60cd14f | 1098 | dev_err(dai->dev, |
f110bfc7 | 1099 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 1100 | dai->name, err); |
6b05eda6 | 1101 | } |
e60cd14f | 1102 | dai->probed = 0; |
f0fba2ad | 1103 | } |
b0aa88af MLC |
1104 | } |
1105 | ||
1a497983 ML |
1106 | static void soc_remove_link_dais(struct snd_soc_card *card, |
1107 | struct snd_soc_pcm_runtime *rtd, int order) | |
b0aa88af | 1108 | { |
e60cd14f | 1109 | int i; |
b0aa88af MLC |
1110 | |
1111 | /* unregister the rtd device */ | |
1112 | if (rtd->dev_registered) { | |
b0aa88af MLC |
1113 | device_unregister(rtd->dev); |
1114 | rtd->dev_registered = 0; | |
1115 | } | |
1116 | ||
1117 | /* remove the CODEC DAI */ | |
88bd870f | 1118 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 1119 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 1120 | |
e60cd14f | 1121 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 1122 | } |
db2a4165 | 1123 | |
1a497983 ML |
1124 | static void soc_remove_link_components(struct snd_soc_card *card, |
1125 | struct snd_soc_pcm_runtime *rtd, int order) | |
62ae68fa | 1126 | { |
62ae68fa | 1127 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
62ae68fa | 1128 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1129 | struct snd_soc_component *component; |
88bd870f | 1130 | int i; |
62ae68fa SW |
1131 | |
1132 | /* remove the platform */ | |
70090bbb | 1133 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1134 | soc_remove_component(&platform->component); |
62ae68fa SW |
1135 | |
1136 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1137 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1138 | component = rtd->codec_dais[i]->component; |
70090bbb | 1139 | if (component->driver->remove_order == order) |
61aca564 | 1140 | soc_remove_component(component); |
62ae68fa SW |
1141 | } |
1142 | ||
1143 | /* remove any CPU-side CODEC */ | |
1144 | if (cpu_dai) { | |
70090bbb | 1145 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1146 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1147 | } |
1148 | } | |
1149 | ||
0671fd8e KM |
1150 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1151 | { | |
1a497983 ML |
1152 | int order; |
1153 | struct snd_soc_pcm_runtime *rtd; | |
f8f80361 | 1154 | struct snd_soc_dai_link *link, *_link; |
0671fd8e | 1155 | |
0168bf0d LG |
1156 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1157 | order++) { | |
1a497983 ML |
1158 | list_for_each_entry(rtd, &card->rtd_list, list) |
1159 | soc_remove_link_dais(card, rtd, order); | |
62ae68fa SW |
1160 | } |
1161 | ||
1162 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1163 | order++) { | |
1a497983 ML |
1164 | list_for_each_entry(rtd, &card->rtd_list, list) |
1165 | soc_remove_link_components(card, rtd, order); | |
0168bf0d | 1166 | } |
62ae68fa | 1167 | |
f8f80361 ML |
1168 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1169 | if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK) | |
1170 | dev_warn(card->dev, "Topology forgot to remove link %s?\n", | |
1171 | link->name); | |
1172 | ||
1173 | list_del(&link->list); | |
1174 | card->num_dai_links--; | |
1175 | } | |
0671fd8e KM |
1176 | } |
1177 | ||
923c5e61 ML |
1178 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
1179 | struct snd_soc_dai_link *dai_link) | |
1180 | { | |
1181 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
1182 | if (dai_link->codec_name || dai_link->codec_of_node || | |
1183 | dai_link->codec_dai_name) { | |
1184 | dai_link->num_codecs = 1; | |
1185 | ||
1186 | dai_link->codecs = devm_kzalloc(card->dev, | |
1187 | sizeof(struct snd_soc_dai_link_component), | |
1188 | GFP_KERNEL); | |
1189 | if (!dai_link->codecs) | |
1190 | return -ENOMEM; | |
1191 | ||
1192 | dai_link->codecs[0].name = dai_link->codec_name; | |
1193 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
1194 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
1195 | } | |
1196 | ||
1197 | if (!dai_link->codecs) { | |
1198 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
1199 | return -EINVAL; | |
1200 | } | |
1201 | ||
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | static int soc_init_dai_link(struct snd_soc_card *card, | |
1206 | struct snd_soc_dai_link *link) | |
1207 | { | |
1208 | int i, ret; | |
1209 | ||
1210 | ret = snd_soc_init_multicodec(card, link); | |
1211 | if (ret) { | |
1212 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
1213 | return ret; | |
1214 | } | |
1215 | ||
1216 | for (i = 0; i < link->num_codecs; i++) { | |
1217 | /* | |
1218 | * Codec must be specified by 1 of name or OF node, | |
1219 | * not both or neither. | |
1220 | */ | |
1221 | if (!!link->codecs[i].name == | |
1222 | !!link->codecs[i].of_node) { | |
1223 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
1224 | link->name); | |
1225 | return -EINVAL; | |
1226 | } | |
1227 | /* Codec DAI name must be specified */ | |
1228 | if (!link->codecs[i].dai_name) { | |
1229 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
1230 | link->name); | |
1231 | return -EINVAL; | |
1232 | } | |
1233 | } | |
1234 | ||
1235 | /* | |
1236 | * Platform may be specified by either name or OF node, but | |
1237 | * can be left unspecified, and a dummy platform will be used. | |
1238 | */ | |
1239 | if (link->platform_name && link->platform_of_node) { | |
1240 | dev_err(card->dev, | |
1241 | "ASoC: Both platform name/of_node are set for %s\n", | |
1242 | link->name); | |
1243 | return -EINVAL; | |
1244 | } | |
1245 | ||
1246 | /* | |
1247 | * CPU device may be specified by either name or OF node, but | |
1248 | * can be left unspecified, and will be matched based on DAI | |
1249 | * name alone.. | |
1250 | */ | |
1251 | if (link->cpu_name && link->cpu_of_node) { | |
1252 | dev_err(card->dev, | |
1253 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
1254 | link->name); | |
1255 | return -EINVAL; | |
1256 | } | |
1257 | /* | |
1258 | * At least one of CPU DAI name or CPU device name/node must be | |
1259 | * specified | |
1260 | */ | |
1261 | if (!link->cpu_dai_name && | |
1262 | !(link->cpu_name || link->cpu_of_node)) { | |
1263 | dev_err(card->dev, | |
1264 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
1265 | link->name); | |
1266 | return -EINVAL; | |
1267 | } | |
1268 | ||
1269 | return 0; | |
0671fd8e KM |
1270 | } |
1271 | ||
f8f80361 ML |
1272 | /** |
1273 | * snd_soc_add_dai_link - Add a DAI link dynamically | |
1274 | * @card: The ASoC card to which the DAI link is added | |
1275 | * @dai_link: The new DAI link to add | |
1276 | * | |
1277 | * This function adds a DAI link to the ASoC card's link list. | |
1278 | * | |
1279 | * Note: Topology can use this API to add DAI links when probing the | |
1280 | * topology component. And machine drivers can still define static | |
1281 | * DAI links in dai_link array. | |
1282 | */ | |
1283 | int snd_soc_add_dai_link(struct snd_soc_card *card, | |
1284 | struct snd_soc_dai_link *dai_link) | |
1285 | { | |
1286 | if (dai_link->dobj.type | |
1287 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1288 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1289 | dai_link->dobj.type); | |
1290 | return -EINVAL; | |
1291 | } | |
1292 | ||
1293 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1294 | /* Notify the machine driver for extra initialization |
1295 | * on the link created by topology. | |
1296 | */ | |
1297 | if (dai_link->dobj.type && card->add_dai_link) | |
1298 | card->add_dai_link(card, dai_link); | |
1299 | ||
f8f80361 ML |
1300 | list_add_tail(&dai_link->list, &card->dai_link_list); |
1301 | card->num_dai_links++; | |
1302 | ||
1303 | return 0; | |
1304 | } | |
1305 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_link); | |
1306 | ||
1307 | /** | |
1308 | * snd_soc_remove_dai_link - Remove a DAI link from the list | |
1309 | * @card: The ASoC card that owns the link | |
1310 | * @dai_link: The DAI link to remove | |
1311 | * | |
1312 | * This function removes a DAI link from the ASoC card's link list. | |
1313 | * | |
1314 | * For DAI links previously added by topology, topology should | |
1315 | * remove them by using the dobj embedded in the link. | |
1316 | */ | |
1317 | void snd_soc_remove_dai_link(struct snd_soc_card *card, | |
1318 | struct snd_soc_dai_link *dai_link) | |
1319 | { | |
1320 | struct snd_soc_dai_link *link, *_link; | |
1321 | ||
1322 | if (dai_link->dobj.type | |
1323 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1324 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1325 | dai_link->dobj.type); | |
1326 | return; | |
1327 | } | |
1328 | ||
1329 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1330 | /* Notify the machine driver for extra destruction |
1331 | * on the link created by topology. | |
1332 | */ | |
1333 | if (dai_link->dobj.type && card->remove_dai_link) | |
1334 | card->remove_dai_link(card, dai_link); | |
1335 | ||
f8f80361 ML |
1336 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1337 | if (link == dai_link) { | |
1338 | list_del(&link->list); | |
1339 | card->num_dai_links--; | |
1340 | return; | |
1341 | } | |
1342 | } | |
1343 | } | |
1344 | EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); | |
1345 | ||
ead9b919 | 1346 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1347 | struct snd_soc_component *component) |
ead9b919 JN |
1348 | { |
1349 | int i; | |
1350 | ||
ff819b83 | 1351 | if (card->codec_conf == NULL) |
ead9b919 JN |
1352 | return; |
1353 | ||
ff819b83 DP |
1354 | for (i = 0; i < card->num_configs; i++) { |
1355 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1356 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1357 | continue; |
94f99c87 | 1358 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1359 | continue; |
94f99c87 | 1360 | component->name_prefix = map->name_prefix; |
3ca041ed | 1361 | break; |
ead9b919 JN |
1362 | } |
1363 | } | |
1364 | ||
f1d45cc3 LPC |
1365 | static int soc_probe_component(struct snd_soc_card *card, |
1366 | struct snd_soc_component *component) | |
589c3563 | 1367 | { |
f1d45cc3 | 1368 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1369 | struct snd_soc_dai *dai; |
f1d45cc3 | 1370 | int ret; |
589c3563 | 1371 | |
1b7c1231 | 1372 | if (!strcmp(component->name, "snd-soc-dummy")) |
70090bbb | 1373 | return 0; |
589c3563 | 1374 | |
abd31b32 | 1375 | if (component->card) { |
1b7c1231 LPC |
1376 | if (component->card != card) { |
1377 | dev_err(component->dev, | |
1378 | "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", | |
1379 | card->name, component->card->name); | |
1380 | return -ENODEV; | |
1381 | } | |
1382 | return 0; | |
1383 | } | |
589c3563 | 1384 | |
f1d45cc3 | 1385 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1386 | return -ENODEV; |
1387 | ||
f1d45cc3 LPC |
1388 | component->card = card; |
1389 | dapm->card = card; | |
1390 | soc_set_name_prefix(card, component); | |
589c3563 | 1391 | |
f1d45cc3 | 1392 | soc_init_component_debugfs(component); |
d5d1e0be | 1393 | |
f1d45cc3 LPC |
1394 | if (component->dapm_widgets) { |
1395 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1396 | component->num_dapm_widgets); | |
b318ad50 NP |
1397 | |
1398 | if (ret != 0) { | |
f1d45cc3 | 1399 | dev_err(component->dev, |
b318ad50 NP |
1400 | "Failed to create new controls %d\n", ret); |
1401 | goto err_probe; | |
1402 | } | |
1403 | } | |
77530150 | 1404 | |
0634814f LPC |
1405 | list_for_each_entry(dai, &component->dai_list, list) { |
1406 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1407 | if (ret != 0) { |
0634814f | 1408 | dev_err(component->dev, |
261edc70 NP |
1409 | "Failed to create DAI widgets %d\n", ret); |
1410 | goto err_probe; | |
1411 | } | |
1412 | } | |
888df395 | 1413 | |
f1d45cc3 LPC |
1414 | if (component->probe) { |
1415 | ret = component->probe(component); | |
589c3563 | 1416 | if (ret < 0) { |
f1d45cc3 LPC |
1417 | dev_err(component->dev, |
1418 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1419 | goto err_probe; |
589c3563 | 1420 | } |
cb2cf612 | 1421 | |
f1d45cc3 LPC |
1422 | WARN(dapm->idle_bias_off && |
1423 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1424 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1425 | component->name); | |
be09ad90 LG |
1426 | } |
1427 | ||
f2ed6b07 ML |
1428 | /* machine specific init */ |
1429 | if (component->init) { | |
1430 | ret = component->init(component); | |
1431 | if (ret < 0) { | |
1432 | dev_err(component->dev, | |
1433 | "Failed to do machine specific init %d\n", ret); | |
1434 | goto err_probe; | |
1435 | } | |
1436 | } | |
1437 | ||
f1d45cc3 LPC |
1438 | if (component->controls) |
1439 | snd_soc_add_component_controls(component, component->controls, | |
1440 | component->num_controls); | |
1441 | if (component->dapm_routes) | |
1442 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1443 | component->num_dapm_routes); | |
3fec6b6d | 1444 | |
f1d45cc3 | 1445 | list_add(&dapm->list, &card->dapm_list); |
cb2cf612 | 1446 | |
f1d45cc3 LPC |
1447 | /* This is a HACK and will be removed soon */ |
1448 | if (component->codec) | |
1449 | list_add(&component->codec->card_list, &card->codec_dev_list); | |
956245e9 LG |
1450 | |
1451 | return 0; | |
1452 | ||
1453 | err_probe: | |
f1d45cc3 | 1454 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1455 | component->card = NULL; |
f1d45cc3 | 1456 | module_put(component->dev->driver->owner); |
956245e9 LG |
1457 | |
1458 | return ret; | |
1459 | } | |
1460 | ||
36ae1a96 MB |
1461 | static void rtd_release(struct device *dev) |
1462 | { | |
1463 | kfree(dev); | |
1464 | } | |
f0fba2ad | 1465 | |
5f3484ac LPC |
1466 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1467 | const char *name) | |
503ae5e0 | 1468 | { |
589c3563 JN |
1469 | int ret = 0; |
1470 | ||
589c3563 | 1471 | /* register the rtd device */ |
36ae1a96 MB |
1472 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1473 | if (!rtd->dev) | |
1474 | return -ENOMEM; | |
1475 | device_initialize(rtd->dev); | |
5f3484ac | 1476 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1477 | rtd->dev->release = rtd_release; |
d29697dc | 1478 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1479 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1480 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1481 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1482 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1483 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1484 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1485 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1486 | ret = device_add(rtd->dev); |
589c3563 | 1487 | if (ret < 0) { |
865df9cb CL |
1488 | /* calling put_device() here to free the rtd->dev */ |
1489 | put_device(rtd->dev); | |
5f3484ac | 1490 | dev_err(rtd->card->dev, |
f110bfc7 | 1491 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1492 | return ret; |
1493 | } | |
1494 | rtd->dev_registered = 1; | |
589c3563 JN |
1495 | return 0; |
1496 | } | |
1497 | ||
1a497983 ML |
1498 | static int soc_probe_link_components(struct snd_soc_card *card, |
1499 | struct snd_soc_pcm_runtime *rtd, | |
62ae68fa SW |
1500 | int order) |
1501 | { | |
62ae68fa | 1502 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1503 | struct snd_soc_component *component; |
88bd870f | 1504 | int i, ret; |
62ae68fa SW |
1505 | |
1506 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1507 | component = rtd->cpu_dai->component; |
70090bbb | 1508 | if (component->driver->probe_order == order) { |
61aca564 | 1509 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1510 | if (ret < 0) |
1511 | return ret; | |
1512 | } | |
1513 | ||
88bd870f BC |
1514 | /* probe the CODEC-side components */ |
1515 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1516 | component = rtd->codec_dais[i]->component; |
70090bbb | 1517 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1518 | ret = soc_probe_component(card, component); |
88bd870f BC |
1519 | if (ret < 0) |
1520 | return ret; | |
1521 | } | |
62ae68fa SW |
1522 | } |
1523 | ||
1524 | /* probe the platform */ | |
70090bbb | 1525 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1526 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1527 | if (ret < 0) |
1528 | return ret; | |
1529 | } | |
1530 | ||
1531 | return 0; | |
1532 | } | |
1533 | ||
8e2be562 | 1534 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1535 | { |
1536 | int ret; | |
1537 | ||
8e2be562 LPC |
1538 | if (!dai->probed && dai->driver->probe_order == order) { |
1539 | if (dai->driver->probe) { | |
1540 | ret = dai->driver->probe(dai); | |
b0aa88af | 1541 | if (ret < 0) { |
8e2be562 LPC |
1542 | dev_err(dai->dev, |
1543 | "ASoC: failed to probe DAI %s: %d\n", | |
1544 | dai->name, ret); | |
b0aa88af MLC |
1545 | return ret; |
1546 | } | |
1547 | } | |
1548 | ||
8e2be562 | 1549 | dai->probed = 1; |
b0aa88af MLC |
1550 | } |
1551 | ||
1552 | return 0; | |
1553 | } | |
1554 | ||
2436a723 MLC |
1555 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1556 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1557 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1558 | { |
3f901a02 BC |
1559 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1560 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
3de7c420 | 1561 | struct snd_soc_dapm_widget *sink, *source; |
2436a723 MLC |
1562 | int ret; |
1563 | ||
88bd870f BC |
1564 | if (rtd->num_codecs > 1) |
1565 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1566 | ||
2436a723 | 1567 | /* link the DAI widgets */ |
3de7c420 VK |
1568 | sink = codec_dai->playback_widget; |
1569 | source = cpu_dai->capture_widget; | |
1570 | if (sink && source) { | |
2436a723 | 1571 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1572 | dai_link->num_params, |
1573 | source, sink); | |
2436a723 MLC |
1574 | if (ret != 0) { |
1575 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1576 | sink->name, source->name, ret); |
2436a723 MLC |
1577 | return ret; |
1578 | } | |
1579 | } | |
1580 | ||
3de7c420 VK |
1581 | sink = cpu_dai->playback_widget; |
1582 | source = codec_dai->capture_widget; | |
1583 | if (sink && source) { | |
2436a723 | 1584 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1585 | dai_link->num_params, |
1586 | source, sink); | |
2436a723 MLC |
1587 | if (ret != 0) { |
1588 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1589 | sink->name, source->name, ret); |
2436a723 MLC |
1590 | return ret; |
1591 | } | |
1592 | } | |
1593 | ||
1594 | return 0; | |
1595 | } | |
1596 | ||
1a497983 ML |
1597 | static int soc_probe_link_dais(struct snd_soc_card *card, |
1598 | struct snd_soc_pcm_runtime *rtd, int order) | |
f0fba2ad | 1599 | { |
1a497983 | 1600 | struct snd_soc_dai_link *dai_link = rtd->dai_link; |
c74184ed | 1601 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1602 | int i, ret; |
f0fba2ad | 1603 | |
f110bfc7 | 1604 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
1a497983 | 1605 | card->name, rtd->num, order); |
f0fba2ad | 1606 | |
f0fba2ad LG |
1607 | /* set default power off timeout */ |
1608 | rtd->pmdown_time = pmdown_time; | |
1609 | ||
8e2be562 LPC |
1610 | ret = soc_probe_dai(cpu_dai, order); |
1611 | if (ret) | |
1612 | return ret; | |
db2a4165 | 1613 | |
f0fba2ad | 1614 | /* probe the CODEC DAI */ |
88bd870f | 1615 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1616 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1617 | if (ret) |
1618 | return ret; | |
1619 | } | |
fe3e78e0 | 1620 | |
0168bf0d LG |
1621 | /* complete DAI probe during last probe */ |
1622 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1623 | return 0; | |
1624 | ||
5f3484ac LPC |
1625 | /* do machine specific initialization */ |
1626 | if (dai_link->init) { | |
1627 | ret = dai_link->init(rtd); | |
1628 | if (ret < 0) { | |
1629 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1630 | dai_link->name, ret); | |
1631 | return ret; | |
1632 | } | |
1633 | } | |
1634 | ||
a5053a8e KM |
1635 | if (dai_link->dai_fmt) |
1636 | snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1637 | ||
5f3484ac | 1638 | ret = soc_post_component_init(rtd, dai_link->name); |
589c3563 | 1639 | if (ret) |
f0fba2ad | 1640 | return ret; |
fe3e78e0 | 1641 | |
5f3484ac LPC |
1642 | #ifdef CONFIG_DEBUG_FS |
1643 | /* add DPCM sysfs entries */ | |
2e55b90a LPC |
1644 | if (dai_link->dynamic) |
1645 | soc_dpcm_debugfs_add(rtd); | |
5f3484ac LPC |
1646 | #endif |
1647 | ||
6f0c4226 | 1648 | if (cpu_dai->driver->compress_new) { |
1245b700 | 1649 | /*create compress_device"*/ |
1a497983 | 1650 | ret = cpu_dai->driver->compress_new(rtd, rtd->num); |
c74184ed | 1651 | if (ret < 0) { |
f110bfc7 | 1652 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1653 | dai_link->stream_name); |
c74184ed MB |
1654 | return ret; |
1655 | } | |
1656 | } else { | |
1245b700 NK |
1657 | |
1658 | if (!dai_link->params) { | |
1659 | /* create the pcm */ | |
1a497983 | 1660 | ret = soc_new_pcm(rtd, rtd->num); |
1245b700 | 1661 | if (ret < 0) { |
f110bfc7 | 1662 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1663 | dai_link->stream_name, ret); |
c74184ed MB |
1664 | return ret; |
1665 | } | |
1245b700 | 1666 | } else { |
9d58a077 RF |
1667 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1668 | codec2codec_close_delayed_work); | |
1669 | ||
1245b700 | 1670 | /* link the DAI widgets */ |
3f901a02 | 1671 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1672 | if (ret) |
1673 | return ret; | |
c74184ed | 1674 | } |
f0fba2ad LG |
1675 | } |
1676 | ||
f0fba2ad LG |
1677 | return 0; |
1678 | } | |
1679 | ||
44c69bb1 | 1680 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed SR |
1681 | { |
1682 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
f2ed6b07 ML |
1683 | struct snd_soc_component *component; |
1684 | const char *name; | |
1685 | struct device_node *codec_of_node; | |
1686 | ||
1687 | if (aux_dev->codec_of_node || aux_dev->codec_name) { | |
1688 | /* codecs, usually analog devices */ | |
1689 | name = aux_dev->codec_name; | |
1690 | codec_of_node = aux_dev->codec_of_node; | |
1691 | component = soc_find_component(codec_of_node, name); | |
1692 | if (!component) { | |
1693 | if (codec_of_node) | |
1694 | name = of_node_full_name(codec_of_node); | |
1695 | goto err_defer; | |
1696 | } | |
1697 | } else if (aux_dev->name) { | |
1698 | /* generic components */ | |
1699 | name = aux_dev->name; | |
1700 | component = soc_find_component(NULL, name); | |
1701 | if (!component) | |
1702 | goto err_defer; | |
1703 | } else { | |
1704 | dev_err(card->dev, "ASoC: Invalid auxiliary device\n"); | |
1705 | return -EINVAL; | |
3ca041ed | 1706 | } |
fb099cb7 | 1707 | |
f2ed6b07 ML |
1708 | component->init = aux_dev->init; |
1709 | list_add(&component->list_aux, &card->aux_comp_list); | |
44c69bb1 | 1710 | return 0; |
f2ed6b07 ML |
1711 | |
1712 | err_defer: | |
1713 | dev_err(card->dev, "ASoC: %s not registered\n", name); | |
1714 | return -EPROBE_DEFER; | |
b19e6e7b MB |
1715 | } |
1716 | ||
f2ed6b07 | 1717 | static int soc_probe_aux_devices(struct snd_soc_card *card) |
2eea392d | 1718 | { |
f2ed6b07 ML |
1719 | struct snd_soc_component *comp; |
1720 | int order; | |
44c69bb1 | 1721 | int ret; |
3ca041ed | 1722 | |
f2ed6b07 ML |
1723 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1724 | order++) { | |
1725 | list_for_each_entry(comp, &card->aux_comp_list, list_aux) { | |
1726 | if (comp->driver->probe_order == order) { | |
1727 | ret = soc_probe_component(card, comp); | |
1728 | if (ret < 0) { | |
1729 | dev_err(card->dev, | |
1730 | "ASoC: failed to probe aux component %s %d\n", | |
1731 | comp->name, ret); | |
1732 | return ret; | |
1733 | } | |
1734 | } | |
5f3484ac LPC |
1735 | } |
1736 | } | |
2eea392d | 1737 | |
f2ed6b07 | 1738 | return 0; |
2eea392d JN |
1739 | } |
1740 | ||
f2ed6b07 | 1741 | static void soc_remove_aux_devices(struct snd_soc_card *card) |
2eea392d | 1742 | { |
f2ed6b07 ML |
1743 | struct snd_soc_component *comp, *_comp; |
1744 | int order; | |
2eea392d | 1745 | |
f2ed6b07 ML |
1746 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1747 | order++) { | |
1748 | list_for_each_entry_safe(comp, _comp, | |
1749 | &card->aux_comp_list, list_aux) { | |
1750 | if (comp->driver->remove_order == order) { | |
1751 | soc_remove_component(comp); | |
1752 | /* remove it from the card's aux_comp_list */ | |
1753 | list_del(&comp->list_aux); | |
1754 | } | |
1755 | } | |
2eea392d | 1756 | } |
2eea392d JN |
1757 | } |
1758 | ||
f90fb3f7 | 1759 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1760 | { |
1761 | int ret; | |
1762 | ||
1763 | if (codec->cache_init) | |
1764 | return 0; | |
1765 | ||
fdf0f54d DP |
1766 | ret = snd_soc_cache_init(codec); |
1767 | if (ret < 0) { | |
10e8aa9a MM |
1768 | dev_err(codec->dev, |
1769 | "ASoC: Failed to set cache compression type: %d\n", | |
1770 | ret); | |
fdf0f54d DP |
1771 | return ret; |
1772 | } | |
1773 | codec->cache_init = 1; | |
1774 | return 0; | |
1775 | } | |
1776 | ||
ce64c8b9 LPC |
1777 | /** |
1778 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1779 | * @rtd: The runtime for which the DAI link format should be changed | |
1780 | * @dai_fmt: The new DAI link format | |
1781 | * | |
1782 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1783 | * link for the specified runtime. | |
1784 | * | |
1785 | * Note: For setups with a static format set the dai_fmt field in the | |
1786 | * corresponding snd_dai_link struct instead of using this function. | |
1787 | * | |
1788 | * Returns 0 on success, otherwise a negative error code. | |
1789 | */ | |
1790 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1791 | unsigned int dai_fmt) | |
1792 | { | |
1793 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1794 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1795 | unsigned int i; | |
1796 | int ret; | |
1797 | ||
1798 | for (i = 0; i < rtd->num_codecs; i++) { | |
1799 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1800 | ||
1801 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1802 | if (ret != 0 && ret != -ENOTSUPP) { | |
1803 | dev_warn(codec_dai->dev, | |
1804 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1805 | return ret; | |
1806 | } | |
1807 | } | |
1808 | ||
1809 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1810 | if (cpu_dai->codec) { | |
1811 | unsigned int inv_dai_fmt; | |
1812 | ||
1813 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1814 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1815 | case SND_SOC_DAIFMT_CBM_CFM: | |
1816 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1817 | break; | |
1818 | case SND_SOC_DAIFMT_CBM_CFS: | |
1819 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1820 | break; | |
1821 | case SND_SOC_DAIFMT_CBS_CFM: | |
1822 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1823 | break; | |
1824 | case SND_SOC_DAIFMT_CBS_CFS: | |
1825 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1826 | break; | |
1827 | } | |
1828 | ||
1829 | dai_fmt = inv_dai_fmt; | |
1830 | } | |
1831 | ||
1832 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1833 | if (ret != 0 && ret != -ENOTSUPP) { | |
1834 | dev_warn(cpu_dai->dev, | |
1835 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1836 | return ret; | |
1837 | } | |
1838 | ||
1839 | return 0; | |
1840 | } | |
ddaca25a | 1841 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1842 | |
b19e6e7b | 1843 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1844 | { |
fdf0f54d | 1845 | struct snd_soc_codec *codec; |
1a497983 | 1846 | struct snd_soc_pcm_runtime *rtd; |
61b0088b | 1847 | struct snd_soc_dai_link *dai_link; |
ce64c8b9 | 1848 | int ret, i, order; |
fe3e78e0 | 1849 | |
34e81ab4 | 1850 | mutex_lock(&client_mutex); |
01b9d99a | 1851 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1852 | |
f0fba2ad | 1853 | /* bind DAIs */ |
b19e6e7b | 1854 | for (i = 0; i < card->num_links; i++) { |
6f2f1ff0 | 1855 | ret = soc_bind_dai_link(card, &card->dai_link[i]); |
b19e6e7b MB |
1856 | if (ret != 0) |
1857 | goto base_error; | |
1858 | } | |
fe3e78e0 | 1859 | |
44c69bb1 | 1860 | /* bind aux_devs too */ |
b19e6e7b | 1861 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 1862 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
1863 | if (ret != 0) |
1864 | goto base_error; | |
f0fba2ad | 1865 | } |
435c5e25 | 1866 | |
f8f80361 ML |
1867 | /* add predefined DAI links to the list */ |
1868 | for (i = 0; i < card->num_links; i++) | |
1869 | snd_soc_add_dai_link(card, card->dai_link+i); | |
1870 | ||
fdf0f54d DP |
1871 | /* initialize the register cache for each available codec */ |
1872 | list_for_each_entry(codec, &codec_list, list) { | |
1873 | if (codec->cache_init) | |
1874 | continue; | |
f90fb3f7 | 1875 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
1876 | if (ret < 0) |
1877 | goto base_error; | |
fdf0f54d DP |
1878 | } |
1879 | ||
f0fba2ad | 1880 | /* card bind complete so register a sound card */ |
102b5a8d | 1881 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1882 | card->owner, 0, &card->snd_card); |
1883 | if (ret < 0) { | |
10e8aa9a MM |
1884 | dev_err(card->dev, |
1885 | "ASoC: can't create sound card for card %s: %d\n", | |
1886 | card->name, ret); | |
b19e6e7b | 1887 | goto base_error; |
f0fba2ad | 1888 | } |
f0fba2ad | 1889 | |
0757d834 LPC |
1890 | soc_init_card_debugfs(card); |
1891 | ||
e37a4970 MB |
1892 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1893 | card->dapm.dev = card->dev; | |
1894 | card->dapm.card = card; | |
1895 | list_add(&card->dapm.list, &card->dapm_list); | |
1896 | ||
d5d1e0be LPC |
1897 | #ifdef CONFIG_DEBUG_FS |
1898 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1899 | #endif | |
1900 | ||
88ee1c61 | 1901 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1902 | /* deferred resume work */ |
1903 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1904 | #endif | |
db2a4165 | 1905 | |
9a841ebb MB |
1906 | if (card->dapm_widgets) |
1907 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1908 | card->num_dapm_widgets); | |
1909 | ||
f23e860e NC |
1910 | if (card->of_dapm_widgets) |
1911 | snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, | |
1912 | card->num_of_dapm_widgets); | |
1913 | ||
f0fba2ad LG |
1914 | /* initialise the sound card only once */ |
1915 | if (card->probe) { | |
e7361ec4 | 1916 | ret = card->probe(card); |
f0fba2ad LG |
1917 | if (ret < 0) |
1918 | goto card_probe_error; | |
1919 | } | |
fe3e78e0 | 1920 | |
62ae68fa | 1921 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1922 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1923 | order++) { | |
1a497983 ML |
1924 | list_for_each_entry(rtd, &card->rtd_list, list) { |
1925 | ret = soc_probe_link_components(card, rtd, order); | |
0168bf0d | 1926 | if (ret < 0) { |
f110bfc7 LG |
1927 | dev_err(card->dev, |
1928 | "ASoC: failed to instantiate card %d\n", | |
1929 | ret); | |
62ae68fa SW |
1930 | goto probe_dai_err; |
1931 | } | |
1932 | } | |
1933 | } | |
1934 | ||
f2ed6b07 ML |
1935 | /* probe auxiliary components */ |
1936 | ret = soc_probe_aux_devices(card); | |
1937 | if (ret < 0) | |
1938 | goto probe_dai_err; | |
1939 | ||
61b0088b ML |
1940 | /* Find new DAI links added during probing components and bind them. |
1941 | * Components with topology may bring new DAIs and DAI links. | |
1942 | */ | |
1943 | list_for_each_entry(dai_link, &card->dai_link_list, list) { | |
1944 | if (soc_is_dai_link_bound(card, dai_link)) | |
1945 | continue; | |
1946 | ||
1947 | ret = soc_init_dai_link(card, dai_link); | |
1948 | if (ret) | |
1949 | goto probe_dai_err; | |
1950 | ret = soc_bind_dai_link(card, dai_link); | |
1951 | if (ret) | |
1952 | goto probe_dai_err; | |
1953 | } | |
1954 | ||
62ae68fa SW |
1955 | /* probe all DAI links on this card */ |
1956 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1957 | order++) { | |
1a497983 ML |
1958 | list_for_each_entry(rtd, &card->rtd_list, list) { |
1959 | ret = soc_probe_link_dais(card, rtd, order); | |
62ae68fa | 1960 | if (ret < 0) { |
f110bfc7 LG |
1961 | dev_err(card->dev, |
1962 | "ASoC: failed to instantiate card %d\n", | |
1963 | ret); | |
0168bf0d LG |
1964 | goto probe_dai_err; |
1965 | } | |
f0fba2ad LG |
1966 | } |
1967 | } | |
db2a4165 | 1968 | |
888df395 | 1969 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1970 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1971 | |
b7af1daf | 1972 | if (card->controls) |
022658be | 1973 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1974 | |
b8ad29de MB |
1975 | if (card->dapm_routes) |
1976 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1977 | card->num_dapm_routes); | |
1978 | ||
f23e860e NC |
1979 | if (card->of_dapm_routes) |
1980 | snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, | |
1981 | card->num_of_dapm_routes); | |
75d9ac46 | 1982 | |
f0fba2ad | 1983 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1984 | "%s", card->name); |
22de71ba LG |
1985 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1986 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1987 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1988 | "%s", card->driver_name ? card->driver_name : card->name); | |
1989 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1990 | switch (card->snd_card->driver[i]) { | |
1991 | case '_': | |
1992 | case '-': | |
1993 | case '\0': | |
1994 | break; | |
1995 | default: | |
1996 | if (!isalnum(card->snd_card->driver[i])) | |
1997 | card->snd_card->driver[i] = '_'; | |
1998 | break; | |
1999 | } | |
2000 | } | |
f0fba2ad | 2001 | |
28e9ad92 MB |
2002 | if (card->late_probe) { |
2003 | ret = card->late_probe(card); | |
2004 | if (ret < 0) { | |
f110bfc7 | 2005 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
2006 | card->name, ret); |
2007 | goto probe_aux_dev_err; | |
2008 | } | |
2009 | } | |
2010 | ||
824ef826 | 2011 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 2012 | |
f0fba2ad LG |
2013 | ret = snd_card_register(card->snd_card); |
2014 | if (ret < 0) { | |
f110bfc7 LG |
2015 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
2016 | ret); | |
6b3ed785 | 2017 | goto probe_aux_dev_err; |
db2a4165 FM |
2018 | } |
2019 | ||
f0fba2ad | 2020 | card->instantiated = 1; |
4f4c0072 | 2021 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 2022 | mutex_unlock(&card->mutex); |
34e81ab4 | 2023 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
2024 | |
2025 | return 0; | |
f0fba2ad | 2026 | |
2eea392d | 2027 | probe_aux_dev_err: |
f2ed6b07 | 2028 | soc_remove_aux_devices(card); |
2eea392d | 2029 | |
f0fba2ad | 2030 | probe_dai_err: |
0671fd8e | 2031 | soc_remove_dai_links(card); |
f0fba2ad LG |
2032 | |
2033 | card_probe_error: | |
87506549 | 2034 | if (card->remove) |
e7361ec4 | 2035 | card->remove(card); |
f0fba2ad | 2036 | |
2210438b | 2037 | snd_soc_dapm_free(&card->dapm); |
0757d834 | 2038 | soc_cleanup_card_debugfs(card); |
f0fba2ad LG |
2039 | snd_card_free(card->snd_card); |
2040 | ||
b19e6e7b | 2041 | base_error: |
1a497983 | 2042 | soc_remove_pcm_runtimes(card); |
f0fba2ad | 2043 | mutex_unlock(&card->mutex); |
34e81ab4 | 2044 | mutex_unlock(&client_mutex); |
db2a4165 | 2045 | |
b19e6e7b | 2046 | return ret; |
435c5e25 MB |
2047 | } |
2048 | ||
2049 | /* probes a new socdev */ | |
2050 | static int soc_probe(struct platform_device *pdev) | |
2051 | { | |
f0fba2ad | 2052 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 2053 | |
70a7ca34 VK |
2054 | /* |
2055 | * no card, so machine driver should be registering card | |
2056 | * we should not be here in that case so ret error | |
2057 | */ | |
2058 | if (!card) | |
2059 | return -EINVAL; | |
2060 | ||
fe4085e8 | 2061 | dev_warn(&pdev->dev, |
f110bfc7 | 2062 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
2063 | card->name); |
2064 | ||
435c5e25 MB |
2065 | /* Bodge while we unpick instantiation */ |
2066 | card->dev = &pdev->dev; | |
f0fba2ad | 2067 | |
28d528c8 | 2068 | return snd_soc_register_card(card); |
db2a4165 FM |
2069 | } |
2070 | ||
b0e26485 | 2071 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 | 2072 | { |
1a497983 | 2073 | struct snd_soc_pcm_runtime *rtd; |
db2a4165 | 2074 | |
b0e26485 | 2075 | /* make sure any delayed work runs */ |
1a497983 | 2076 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2077 | flush_delayed_work(&rtd->delayed_work); |
914dc182 | 2078 | |
b0e26485 | 2079 | /* remove and free each DAI */ |
0671fd8e | 2080 | soc_remove_dai_links(card); |
1a497983 | 2081 | soc_remove_pcm_runtimes(card); |
2eea392d | 2082 | |
f2ed6b07 ML |
2083 | /* remove auxiliary devices */ |
2084 | soc_remove_aux_devices(card); | |
2085 | ||
d1e81428 | 2086 | snd_soc_dapm_free(&card->dapm); |
b0e26485 | 2087 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2088 | |
b0e26485 VK |
2089 | /* remove the card */ |
2090 | if (card->remove) | |
e7361ec4 | 2091 | card->remove(card); |
a6052154 | 2092 | |
b0e26485 VK |
2093 | snd_card_free(card->snd_card); |
2094 | return 0; | |
2095 | ||
2096 | } | |
2097 | ||
2098 | /* removes a socdev */ | |
2099 | static int soc_remove(struct platform_device *pdev) | |
2100 | { | |
2101 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2102 | |
c5af3a2e | 2103 | snd_soc_unregister_card(card); |
db2a4165 FM |
2104 | return 0; |
2105 | } | |
2106 | ||
6f8ab4ac | 2107 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2108 | { |
6f8ab4ac | 2109 | struct snd_soc_card *card = dev_get_drvdata(dev); |
1a497983 | 2110 | struct snd_soc_pcm_runtime *rtd; |
51737470 MB |
2111 | |
2112 | if (!card->instantiated) | |
416356fc | 2113 | return 0; |
51737470 MB |
2114 | |
2115 | /* Flush out pmdown_time work - we actually do want to run it | |
2116 | * now, we're shutting down so no imminent restart. */ | |
1a497983 | 2117 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2118 | flush_delayed_work(&rtd->delayed_work); |
51737470 | 2119 | |
f0fba2ad | 2120 | snd_soc_dapm_shutdown(card); |
416356fc | 2121 | |
988e8cc4 | 2122 | /* deactivate pins to sleep state */ |
1a497983 | 2123 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f | 2124 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1a497983 | 2125 | int i; |
88bd870f | 2126 | |
988e8cc4 | 2127 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
1a497983 ML |
2128 | for (i = 0; i < rtd->num_codecs; i++) { |
2129 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
88bd870f BC |
2130 | pinctrl_pm_select_sleep_state(codec_dai->dev); |
2131 | } | |
988e8cc4 NC |
2132 | } |
2133 | ||
416356fc | 2134 | return 0; |
51737470 | 2135 | } |
6f8ab4ac | 2136 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2137 | |
6f8ab4ac | 2138 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
2139 | .suspend = snd_soc_suspend, |
2140 | .resume = snd_soc_resume, | |
2141 | .freeze = snd_soc_suspend, | |
2142 | .thaw = snd_soc_resume, | |
6f8ab4ac | 2143 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 2144 | .restore = snd_soc_resume, |
416356fc | 2145 | }; |
deb2607e | 2146 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2147 | |
db2a4165 FM |
2148 | /* ASoC platform driver */ |
2149 | static struct platform_driver soc_driver = { | |
2150 | .driver = { | |
2151 | .name = "soc-audio", | |
6f8ab4ac | 2152 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2153 | }, |
2154 | .probe = soc_probe, | |
2155 | .remove = soc_remove, | |
db2a4165 FM |
2156 | }; |
2157 | ||
db2a4165 FM |
2158 | /** |
2159 | * snd_soc_cnew - create new control | |
2160 | * @_template: control template | |
2161 | * @data: control private data | |
ac11a2b3 | 2162 | * @long_name: control long name |
efb7ac3f | 2163 | * @prefix: control name prefix |
db2a4165 FM |
2164 | * |
2165 | * Create a new mixer control from a template control. | |
2166 | * | |
2167 | * Returns 0 for success, else error. | |
2168 | */ | |
2169 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2170 | void *data, const char *long_name, |
efb7ac3f | 2171 | const char *prefix) |
db2a4165 FM |
2172 | { |
2173 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2174 | struct snd_kcontrol *kcontrol; |
2175 | char *name = NULL; | |
db2a4165 FM |
2176 | |
2177 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2178 | template.index = 0; |
2179 | ||
efb7ac3f MB |
2180 | if (!long_name) |
2181 | long_name = template.name; | |
2182 | ||
2183 | if (prefix) { | |
2b581074 | 2184 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
2185 | if (!name) |
2186 | return NULL; | |
2187 | ||
efb7ac3f MB |
2188 | template.name = name; |
2189 | } else { | |
2190 | template.name = long_name; | |
2191 | } | |
2192 | ||
2193 | kcontrol = snd_ctl_new1(&template, data); | |
2194 | ||
2195 | kfree(name); | |
2196 | ||
2197 | return kcontrol; | |
db2a4165 FM |
2198 | } |
2199 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2200 | ||
022658be LG |
2201 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2202 | const struct snd_kcontrol_new *controls, int num_controls, | |
2203 | const char *prefix, void *data) | |
2204 | { | |
2205 | int err, i; | |
2206 | ||
2207 | for (i = 0; i < num_controls; i++) { | |
2208 | const struct snd_kcontrol_new *control = &controls[i]; | |
2209 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2210 | control->name, prefix)); | |
2211 | if (err < 0) { | |
f110bfc7 LG |
2212 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
2213 | control->name, err); | |
022658be LG |
2214 | return err; |
2215 | } | |
2216 | } | |
2217 | ||
2218 | return 0; | |
2219 | } | |
2220 | ||
4fefd698 DP |
2221 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
2222 | const char *name) | |
2223 | { | |
2224 | struct snd_card *card = soc_card->snd_card; | |
2225 | struct snd_kcontrol *kctl; | |
2226 | ||
2227 | if (unlikely(!name)) | |
2228 | return NULL; | |
2229 | ||
2230 | list_for_each_entry(kctl, &card->controls, list) | |
2231 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
2232 | return kctl; | |
2233 | return NULL; | |
2234 | } | |
2235 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
2236 | ||
0f2780ad LPC |
2237 | /** |
2238 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
2239 | * | |
2240 | * @component: Component to add controls to | |
2241 | * @controls: Array of controls to add | |
2242 | * @num_controls: Number of elements in the array | |
2243 | * | |
2244 | * Return: 0 for success, else error. | |
2245 | */ | |
2246 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
2247 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
2248 | { | |
2249 | struct snd_card *card = component->card->snd_card; | |
2250 | ||
2251 | return snd_soc_add_controls(card, component->dev, controls, | |
2252 | num_controls, component->name_prefix, component); | |
2253 | } | |
2254 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
2255 | ||
3e8e1952 | 2256 | /** |
022658be LG |
2257 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2258 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2259 | * duplicating this code. |
2260 | * | |
2261 | * @codec: codec to add controls to | |
2262 | * @controls: array of controls to add | |
2263 | * @num_controls: number of elements in the array | |
2264 | * | |
2265 | * Return 0 for success, else error. | |
2266 | */ | |
022658be | 2267 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 2268 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 2269 | { |
0f2780ad LPC |
2270 | return snd_soc_add_component_controls(&codec->component, controls, |
2271 | num_controls); | |
3e8e1952 | 2272 | } |
022658be | 2273 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2274 | |
a491a5c8 LG |
2275 | /** |
2276 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2277 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2278 | * |
2279 | * @platform: platform to add controls to | |
2280 | * @controls: array of controls to add | |
2281 | * @num_controls: number of elements in the array | |
2282 | * | |
2283 | * Return 0 for success, else error. | |
2284 | */ | |
2285 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 2286 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 2287 | { |
0f2780ad LPC |
2288 | return snd_soc_add_component_controls(&platform->component, controls, |
2289 | num_controls); | |
a491a5c8 LG |
2290 | } |
2291 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2292 | ||
022658be LG |
2293 | /** |
2294 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2295 | * Convenience function to add a list of controls. | |
2296 | * | |
2297 | * @soc_card: SoC card to add controls to | |
2298 | * @controls: array of controls to add | |
2299 | * @num_controls: number of elements in the array | |
2300 | * | |
2301 | * Return 0 for success, else error. | |
2302 | */ | |
2303 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2304 | const struct snd_kcontrol_new *controls, int num_controls) | |
2305 | { | |
2306 | struct snd_card *card = soc_card->snd_card; | |
2307 | ||
2308 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2309 | NULL, soc_card); | |
2310 | } | |
2311 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2312 | ||
2313 | /** | |
2314 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2315 | * Convienience function to add a list of controls. | |
2316 | * | |
2317 | * @dai: DAI to add controls to | |
2318 | * @controls: array of controls to add | |
2319 | * @num_controls: number of elements in the array | |
2320 | * | |
2321 | * Return 0 for success, else error. | |
2322 | */ | |
2323 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2324 | const struct snd_kcontrol_new *controls, int num_controls) | |
2325 | { | |
313665b9 | 2326 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2327 | |
2328 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2329 | NULL, dai); | |
2330 | } | |
2331 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2332 | ||
8c6529db LG |
2333 | /** |
2334 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2335 | * @dai: DAI | |
2336 | * @clk_id: DAI specific clock ID | |
2337 | * @freq: new clock frequency in Hz | |
2338 | * @dir: new clock direction - input/output. | |
2339 | * | |
2340 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2341 | */ | |
2342 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2343 | unsigned int freq, int dir) | |
2344 | { | |
f0fba2ad LG |
2345 | if (dai->driver && dai->driver->ops->set_sysclk) |
2346 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2347 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2348 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2349 | freq, dir); |
8c6529db | 2350 | else |
1104a9c8 | 2351 | return -ENOTSUPP; |
8c6529db LG |
2352 | } |
2353 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2354 | ||
ec4ee52a MB |
2355 | /** |
2356 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2357 | * @codec: CODEC | |
2358 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2359 | * @source: Source for the clock |
ec4ee52a MB |
2360 | * @freq: new clock frequency in Hz |
2361 | * @dir: new clock direction - input/output. | |
2362 | * | |
2363 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2364 | */ | |
2365 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2366 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2367 | { |
2368 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2369 | return codec->driver->set_sysclk(codec, clk_id, source, |
2370 | freq, dir); | |
ec4ee52a | 2371 | else |
1104a9c8 | 2372 | return -ENOTSUPP; |
ec4ee52a MB |
2373 | } |
2374 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2375 | ||
8c6529db LG |
2376 | /** |
2377 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2378 | * @dai: DAI | |
ac11a2b3 | 2379 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2380 | * @div: new clock divisor. |
2381 | * | |
2382 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2383 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2384 | * and frame clocks as low as possible to save system power. | |
2385 | */ | |
2386 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2387 | int div_id, int div) | |
2388 | { | |
f0fba2ad LG |
2389 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2390 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2391 | else |
2392 | return -EINVAL; | |
2393 | } | |
2394 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2395 | ||
2396 | /** | |
2397 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2398 | * @dai: DAI | |
2399 | * @pll_id: DAI specific PLL ID | |
85488037 | 2400 | * @source: DAI specific source for the PLL |
8c6529db LG |
2401 | * @freq_in: PLL input clock frequency in Hz |
2402 | * @freq_out: requested PLL output clock frequency in Hz | |
2403 | * | |
2404 | * Configures and enables PLL to generate output clock based on input clock. | |
2405 | */ | |
85488037 MB |
2406 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2407 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2408 | { |
f0fba2ad LG |
2409 | if (dai->driver && dai->driver->ops->set_pll) |
2410 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2411 | freq_in, freq_out); |
ec4ee52a MB |
2412 | else if (dai->codec && dai->codec->driver->set_pll) |
2413 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2414 | freq_in, freq_out); | |
8c6529db LG |
2415 | else |
2416 | return -EINVAL; | |
2417 | } | |
2418 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2419 | ||
ec4ee52a MB |
2420 | /* |
2421 | * snd_soc_codec_set_pll - configure codec PLL. | |
2422 | * @codec: CODEC | |
2423 | * @pll_id: DAI specific PLL ID | |
2424 | * @source: DAI specific source for the PLL | |
2425 | * @freq_in: PLL input clock frequency in Hz | |
2426 | * @freq_out: requested PLL output clock frequency in Hz | |
2427 | * | |
2428 | * Configures and enables PLL to generate output clock based on input clock. | |
2429 | */ | |
2430 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2431 | unsigned int freq_in, unsigned int freq_out) | |
2432 | { | |
2433 | if (codec->driver->set_pll) | |
2434 | return codec->driver->set_pll(codec, pll_id, source, | |
2435 | freq_in, freq_out); | |
2436 | else | |
2437 | return -EINVAL; | |
2438 | } | |
2439 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2440 | ||
e54cf76b LG |
2441 | /** |
2442 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2443 | * @dai: DAI | |
231b86b1 | 2444 | * @ratio: Ratio of BCLK to Sample rate. |
e54cf76b LG |
2445 | * |
2446 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2447 | */ | |
2448 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2449 | { | |
2450 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2451 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2452 | else | |
2453 | return -EINVAL; | |
2454 | } | |
2455 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2456 | ||
8c6529db LG |
2457 | /** |
2458 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2459 | * @dai: DAI | |
8c6529db LG |
2460 | * @fmt: SND_SOC_DAIFMT_ format value. |
2461 | * | |
2462 | * Configures the DAI hardware format and clocking. | |
2463 | */ | |
2464 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2465 | { | |
5e4ba569 | 2466 | if (dai->driver == NULL) |
8c6529db | 2467 | return -EINVAL; |
5e4ba569 SG |
2468 | if (dai->driver->ops->set_fmt == NULL) |
2469 | return -ENOTSUPP; | |
2470 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2471 | } |
2472 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2473 | ||
89c67857 | 2474 | /** |
e5c21514 | 2475 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2476 | * @slots: Number of slots in use. |
2477 | * @tx_mask: bitmask representing active TX slots. | |
2478 | * @rx_mask: bitmask representing active RX slots. | |
2479 | * | |
2480 | * Generates the TDM tx and rx slot default masks for DAI. | |
2481 | */ | |
e5c21514 | 2482 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2483 | unsigned int *tx_mask, |
2484 | unsigned int *rx_mask) | |
2485 | { | |
2486 | if (*tx_mask || *rx_mask) | |
2487 | return 0; | |
2488 | ||
2489 | if (!slots) | |
2490 | return -EINVAL; | |
2491 | ||
2492 | *tx_mask = (1 << slots) - 1; | |
2493 | *rx_mask = (1 << slots) - 1; | |
2494 | ||
2495 | return 0; | |
2496 | } | |
2497 | ||
8c6529db | 2498 | /** |
e46c9366 LPC |
2499 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2500 | * @dai: The DAI to configure | |
a5479e38 DR |
2501 | * @tx_mask: bitmask representing active TX slots. |
2502 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2503 | * @slots: Number of slots in use. |
a5479e38 | 2504 | * @slot_width: Width in bits for each slot. |
8c6529db | 2505 | * |
e46c9366 LPC |
2506 | * This function configures the specified DAI for TDM operation. @slot contains |
2507 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2508 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2509 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2510 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2511 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2512 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2513 | * maps to the first channel of the DAI, the second active slot to the second | |
2514 | * channel and so on. | |
2515 | * | |
2516 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2517 | * @rx_mask and @slot_width will be ignored. | |
2518 | * | |
2519 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2520 | */ |
2521 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2522 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2523 | { |
e5c21514 XL |
2524 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2525 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2526 | &tx_mask, &rx_mask); |
2527 | else | |
e5c21514 | 2528 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2529 | |
88bd870f BC |
2530 | dai->tx_mask = tx_mask; |
2531 | dai->rx_mask = rx_mask; | |
2532 | ||
f0fba2ad LG |
2533 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2534 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2535 | slots, slot_width); |
8c6529db | 2536 | else |
b2cbb6e1 | 2537 | return -ENOTSUPP; |
8c6529db LG |
2538 | } |
2539 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2540 | ||
472df3cb BS |
2541 | /** |
2542 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2543 | * @dai: DAI | |
2544 | * @tx_num: how many TX channels | |
2545 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2546 | * 0~num-1 uses | |
2547 | * @rx_num: how many RX channels | |
2548 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2549 | * 0~num-1 uses | |
2550 | * | |
2551 | * configure the relationship between channel number and TDM slot number. | |
2552 | */ | |
2553 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2554 | unsigned int tx_num, unsigned int *tx_slot, | |
2555 | unsigned int rx_num, unsigned int *rx_slot) | |
2556 | { | |
f0fba2ad LG |
2557 | if (dai->driver && dai->driver->ops->set_channel_map) |
2558 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2559 | rx_num, rx_slot); |
2560 | else | |
2561 | return -EINVAL; | |
2562 | } | |
2563 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2564 | ||
8c6529db LG |
2565 | /** |
2566 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2567 | * @dai: DAI | |
2568 | * @tristate: tristate enable | |
2569 | * | |
2570 | * Tristates the DAI so that others can use it. | |
2571 | */ | |
2572 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2573 | { | |
f0fba2ad LG |
2574 | if (dai->driver && dai->driver->ops->set_tristate) |
2575 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2576 | else |
2577 | return -EINVAL; | |
2578 | } | |
2579 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2580 | ||
2581 | /** | |
2582 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2583 | * @dai: DAI | |
2584 | * @mute: mute enable | |
da18396f | 2585 | * @direction: stream to mute |
8c6529db LG |
2586 | * |
2587 | * Mutes the DAI DAC. | |
2588 | */ | |
da18396f MB |
2589 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2590 | int direction) | |
8c6529db | 2591 | { |
da18396f MB |
2592 | if (!dai->driver) |
2593 | return -ENOTSUPP; | |
2594 | ||
2595 | if (dai->driver->ops->mute_stream) | |
2596 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2597 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2598 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2599 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2600 | else |
04570c62 | 2601 | return -ENOTSUPP; |
8c6529db LG |
2602 | } |
2603 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2604 | ||
c5af3a2e MB |
2605 | /** |
2606 | * snd_soc_register_card - Register a card with the ASoC core | |
2607 | * | |
ac11a2b3 | 2608 | * @card: Card to register |
c5af3a2e | 2609 | * |
c5af3a2e | 2610 | */ |
70a7ca34 | 2611 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2612 | { |
923c5e61 | 2613 | int i, ret; |
1a497983 | 2614 | struct snd_soc_pcm_runtime *rtd; |
f0fba2ad | 2615 | |
c5af3a2e MB |
2616 | if (!card->name || !card->dev) |
2617 | return -EINVAL; | |
2618 | ||
5a504963 SW |
2619 | for (i = 0; i < card->num_links; i++) { |
2620 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2621 | ||
923c5e61 | 2622 | ret = soc_init_dai_link(card, link); |
88bd870f | 2623 | if (ret) { |
923c5e61 | 2624 | dev_err(card->dev, "ASoC: failed to init link %s\n", |
10e8aa9a | 2625 | link->name); |
923c5e61 | 2626 | return ret; |
5a504963 SW |
2627 | } |
2628 | } | |
2629 | ||
ed77cc12 MB |
2630 | dev_set_drvdata(card->dev, card); |
2631 | ||
111c6419 SW |
2632 | snd_soc_initialize_card_lists(card); |
2633 | ||
f8f80361 ML |
2634 | INIT_LIST_HEAD(&card->dai_link_list); |
2635 | card->num_dai_links = 0; | |
2636 | ||
1a497983 ML |
2637 | INIT_LIST_HEAD(&card->rtd_list); |
2638 | card->num_rtd = 0; | |
2639 | ||
db432b41 | 2640 | INIT_LIST_HEAD(&card->dapm_dirty); |
8a978234 | 2641 | INIT_LIST_HEAD(&card->dobj_list); |
c5af3a2e | 2642 | card->instantiated = 0; |
f0fba2ad | 2643 | mutex_init(&card->mutex); |
a73fb2df | 2644 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2645 | |
b19e6e7b MB |
2646 | ret = snd_soc_instantiate_card(card); |
2647 | if (ret != 0) | |
4e2576bd | 2648 | return ret; |
c5af3a2e | 2649 | |
988e8cc4 | 2650 | /* deactivate pins to sleep state */ |
1a497983 | 2651 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
2652 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2653 | int j; | |
2654 | ||
2655 | for (j = 0; j < rtd->num_codecs; j++) { | |
2656 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2657 | if (!codec_dai->active) | |
2658 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2659 | } | |
2660 | ||
988e8cc4 NC |
2661 | if (!cpu_dai->active) |
2662 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2663 | } | |
2664 | ||
b19e6e7b | 2665 | return ret; |
c5af3a2e | 2666 | } |
70a7ca34 | 2667 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2668 | |
2669 | /** | |
2670 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2671 | * | |
ac11a2b3 | 2672 | * @card: Card to unregister |
c5af3a2e | 2673 | * |
c5af3a2e | 2674 | */ |
70a7ca34 | 2675 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2676 | { |
01e0df66 LPC |
2677 | if (card->instantiated) { |
2678 | card->instantiated = false; | |
1c325f77 | 2679 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2680 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2681 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2682 | } |
c5af3a2e MB |
2683 | |
2684 | return 0; | |
2685 | } | |
70a7ca34 | 2686 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2687 | |
f0fba2ad LG |
2688 | /* |
2689 | * Simplify DAI link configuration by removing ".-1" from device names | |
2690 | * and sanitizing names. | |
2691 | */ | |
0b9a214a | 2692 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2693 | { |
2694 | char *found, name[NAME_SIZE]; | |
2695 | int id1, id2; | |
2696 | ||
2697 | if (dev_name(dev) == NULL) | |
2698 | return NULL; | |
2699 | ||
58818a77 | 2700 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2701 | |
2702 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2703 | found = strstr(name, dev->driver->name); | |
2704 | if (found) { | |
2705 | /* get ID */ | |
2706 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2707 | ||
2708 | /* discard ID from name if ID == -1 */ | |
2709 | if (*id == -1) | |
2710 | found[strlen(dev->driver->name)] = '\0'; | |
2711 | } | |
2712 | ||
2713 | } else { | |
2714 | /* I2C component devices are named "bus-addr" */ | |
2715 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2716 | char tmp[NAME_SIZE]; | |
2717 | ||
2718 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2719 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2720 | |
2721 | /* sanitize component name for DAI link creation */ | |
2722 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2723 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2724 | } else |
2725 | *id = 0; | |
2726 | } | |
2727 | ||
2728 | return kstrdup(name, GFP_KERNEL); | |
2729 | } | |
2730 | ||
2731 | /* | |
2732 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2733 | * any ".-1" and using the DAI name (instead of device name). | |
2734 | */ | |
2735 | static inline char *fmt_multiple_name(struct device *dev, | |
2736 | struct snd_soc_dai_driver *dai_drv) | |
2737 | { | |
2738 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2739 | dev_err(dev, |
2740 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2741 | dev_name(dev)); | |
f0fba2ad LG |
2742 | return NULL; |
2743 | } | |
2744 | ||
2745 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2746 | } | |
2747 | ||
9115171a | 2748 | /** |
32c9ba54 | 2749 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2750 | * |
32c9ba54 | 2751 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2752 | */ |
32c9ba54 | 2753 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2754 | { |
5c1d5f09 | 2755 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2756 | |
5c1d5f09 | 2757 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2758 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2759 | dai->name); | |
5c1d5f09 | 2760 | list_del(&dai->list); |
32c9ba54 | 2761 | kfree(dai->name); |
f0fba2ad | 2762 | kfree(dai); |
f0fba2ad | 2763 | } |
9115171a | 2764 | } |
9115171a | 2765 | |
5e4fb372 ML |
2766 | /* Create a DAI and add it to the component's DAI list */ |
2767 | static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, | |
2768 | struct snd_soc_dai_driver *dai_drv, | |
2769 | bool legacy_dai_naming) | |
2770 | { | |
2771 | struct device *dev = component->dev; | |
2772 | struct snd_soc_dai *dai; | |
2773 | ||
2774 | dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); | |
2775 | ||
2776 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
2777 | if (dai == NULL) | |
2778 | return NULL; | |
2779 | ||
2780 | /* | |
2781 | * Back in the old days when we still had component-less DAIs, | |
2782 | * instead of having a static name, component-less DAIs would | |
2783 | * inherit the name of the parent device so it is possible to | |
2784 | * register multiple instances of the DAI. We still need to keep | |
2785 | * the same naming style even though those DAIs are not | |
2786 | * component-less anymore. | |
2787 | */ | |
2788 | if (legacy_dai_naming && | |
2789 | (dai_drv->id == 0 || dai_drv->name == NULL)) { | |
2790 | dai->name = fmt_single_name(dev, &dai->id); | |
2791 | } else { | |
2792 | dai->name = fmt_multiple_name(dev, dai_drv); | |
2793 | if (dai_drv->id) | |
2794 | dai->id = dai_drv->id; | |
2795 | else | |
2796 | dai->id = component->num_dai; | |
2797 | } | |
2798 | if (dai->name == NULL) { | |
2799 | kfree(dai); | |
2800 | return NULL; | |
2801 | } | |
2802 | ||
2803 | dai->component = component; | |
2804 | dai->dev = dev; | |
2805 | dai->driver = dai_drv; | |
2806 | if (!dai->driver->ops) | |
2807 | dai->driver->ops = &null_dai_ops; | |
2808 | ||
2809 | list_add(&dai->list, &component->dai_list); | |
2810 | component->num_dai++; | |
2811 | ||
2812 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); | |
2813 | return dai; | |
2814 | } | |
2815 | ||
9115171a | 2816 | /** |
32c9ba54 | 2817 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 2818 | * |
6106d129 LPC |
2819 | * @component: The component the DAIs are registered for |
2820 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 2821 | * @count: Number of DAIs |
32c9ba54 LPC |
2822 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
2823 | * parent's name. | |
9115171a | 2824 | */ |
6106d129 | 2825 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
2826 | struct snd_soc_dai_driver *dai_drv, size_t count, |
2827 | bool legacy_dai_naming) | |
9115171a | 2828 | { |
6106d129 | 2829 | struct device *dev = component->dev; |
f0fba2ad | 2830 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
2831 | unsigned int i; |
2832 | int ret; | |
f0fba2ad | 2833 | |
f110bfc7 | 2834 | dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count); |
9115171a | 2835 | |
bb13109d | 2836 | component->dai_drv = dai_drv; |
bb13109d | 2837 | |
9115171a | 2838 | for (i = 0; i < count; i++) { |
f0fba2ad | 2839 | |
5e4fb372 ML |
2840 | dai = soc_add_dai(component, dai_drv + i, |
2841 | count == 1 && legacy_dai_naming); | |
c46e0079 AL |
2842 | if (dai == NULL) { |
2843 | ret = -ENOMEM; | |
2844 | goto err; | |
2845 | } | |
9115171a | 2846 | } |
f0fba2ad | 2847 | |
9115171a | 2848 | return 0; |
f0fba2ad | 2849 | |
9115171a | 2850 | err: |
32c9ba54 | 2851 | snd_soc_unregister_dais(component); |
f0fba2ad | 2852 | |
9115171a MB |
2853 | return ret; |
2854 | } | |
9115171a | 2855 | |
68003e6c ML |
2856 | /** |
2857 | * snd_soc_register_dai - Register a DAI dynamically & create its widgets | |
2858 | * | |
2859 | * @component: The component the DAIs are registered for | |
2860 | * @dai_drv: DAI driver to use for the DAI | |
2861 | * | |
2862 | * Topology can use this API to register DAIs when probing a component. | |
2863 | * These DAIs's widgets will be freed in the card cleanup and the DAIs | |
2864 | * will be freed in the component cleanup. | |
2865 | */ | |
2866 | int snd_soc_register_dai(struct snd_soc_component *component, | |
2867 | struct snd_soc_dai_driver *dai_drv) | |
2868 | { | |
2869 | struct snd_soc_dapm_context *dapm = | |
2870 | snd_soc_component_get_dapm(component); | |
2871 | struct snd_soc_dai *dai; | |
2872 | int ret; | |
054880fe | 2873 | |
68003e6c ML |
2874 | if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) { |
2875 | dev_err(component->dev, "Invalid dai type %d\n", | |
2876 | dai_drv->dobj.type); | |
2877 | return -EINVAL; | |
9115171a MB |
2878 | } |
2879 | ||
68003e6c ML |
2880 | lockdep_assert_held(&client_mutex); |
2881 | dai = soc_add_dai(component, dai_drv, false); | |
2882 | if (!dai) | |
2883 | return -ENOMEM; | |
9115171a | 2884 | |
68003e6c ML |
2885 | /* Create the DAI widgets here. After adding DAIs, topology may |
2886 | * also add routes that need these widgets as source or sink. | |
2887 | */ | |
2888 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
2889 | if (ret != 0) { | |
2890 | dev_err(component->dev, | |
2891 | "Failed to create DAI widgets %d\n", ret); | |
2892 | } | |
9115171a MB |
2893 | |
2894 | return ret; | |
2895 | } | |
68003e6c | 2896 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); |
9115171a | 2897 | |
14e8bdeb LPC |
2898 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
2899 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 2900 | { |
14e8bdeb | 2901 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 2902 | |
14e8bdeb LPC |
2903 | component->driver->seq_notifier(component, type, subseq); |
2904 | } | |
d191bd8d | 2905 | |
14e8bdeb LPC |
2906 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
2907 | int event) | |
2908 | { | |
2909 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 2910 | |
14e8bdeb LPC |
2911 | return component->driver->stream_event(component, event); |
2912 | } | |
e2c330b9 | 2913 | |
bb13109d LPC |
2914 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
2915 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 2916 | { |
ce0fc93a LPC |
2917 | struct snd_soc_dapm_context *dapm; |
2918 | ||
bb13109d LPC |
2919 | component->name = fmt_single_name(dev, &component->id); |
2920 | if (!component->name) { | |
2921 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
2922 | return -ENOMEM; |
2923 | } | |
2924 | ||
bb13109d LPC |
2925 | component->dev = dev; |
2926 | component->driver = driver; | |
61aca564 LPC |
2927 | component->probe = component->driver->probe; |
2928 | component->remove = component->driver->remove; | |
d191bd8d | 2929 | |
4890140f | 2930 | dapm = &component->dapm; |
ce0fc93a LPC |
2931 | dapm->dev = dev; |
2932 | dapm->component = component; | |
2933 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 2934 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
2935 | if (driver->seq_notifier) |
2936 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
2937 | if (driver->stream_event) | |
2938 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 2939 | |
61aca564 LPC |
2940 | component->controls = driver->controls; |
2941 | component->num_controls = driver->num_controls; | |
2942 | component->dapm_widgets = driver->dapm_widgets; | |
2943 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
2944 | component->dapm_routes = driver->dapm_routes; | |
2945 | component->num_dapm_routes = driver->num_dapm_routes; | |
2946 | ||
bb13109d LPC |
2947 | INIT_LIST_HEAD(&component->dai_list); |
2948 | mutex_init(&component->io_mutex); | |
d191bd8d | 2949 | |
bb13109d LPC |
2950 | return 0; |
2951 | } | |
d191bd8d | 2952 | |
20feb881 | 2953 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 2954 | { |
20feb881 LPC |
2955 | int val_bytes = regmap_get_val_bytes(component->regmap); |
2956 | ||
2957 | /* Errors are legitimate for non-integer byte multiples */ | |
2958 | if (val_bytes > 0) | |
2959 | component->val_bytes = val_bytes; | |
2960 | } | |
2961 | ||
e874bf5f LPC |
2962 | #ifdef CONFIG_REGMAP |
2963 | ||
20feb881 LPC |
2964 | /** |
2965 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
2966 | * @component: The component for which to initialize the regmap instance | |
2967 | * @regmap: The regmap instance that should be used by the component | |
2968 | * | |
2969 | * This function allows deferred assignment of the regmap instance that is | |
2970 | * associated with the component. Only use this if the regmap instance is not | |
2971 | * yet ready when the component is registered. The function must also be called | |
2972 | * before the first IO attempt of the component. | |
2973 | */ | |
2974 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
2975 | struct regmap *regmap) | |
2976 | { | |
2977 | component->regmap = regmap; | |
2978 | snd_soc_component_setup_regmap(component); | |
886f5692 | 2979 | } |
20feb881 LPC |
2980 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
2981 | ||
2982 | /** | |
2983 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
2984 | * @component: The component for which to de-initialize the regmap instance | |
2985 | * | |
2986 | * Calls regmap_exit() on the regmap instance associated to the component and | |
2987 | * removes the regmap instance from the component. | |
2988 | * | |
2989 | * This function should only be used if snd_soc_component_init_regmap() was used | |
2990 | * to initialize the regmap instance. | |
2991 | */ | |
2992 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
2993 | { | |
2994 | regmap_exit(component->regmap); | |
2995 | component->regmap = NULL; | |
2996 | } | |
2997 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 2998 | |
e874bf5f | 2999 | #endif |
886f5692 | 3000 | |
bb13109d LPC |
3001 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
3002 | { | |
20feb881 LPC |
3003 | if (!component->write && !component->read) { |
3004 | if (!component->regmap) | |
3005 | component->regmap = dev_get_regmap(component->dev, NULL); | |
3006 | if (component->regmap) | |
3007 | snd_soc_component_setup_regmap(component); | |
3008 | } | |
886f5692 | 3009 | |
bb13109d | 3010 | list_add(&component->list, &component_list); |
8a978234 | 3011 | INIT_LIST_HEAD(&component->dobj_list); |
bb13109d | 3012 | } |
d191bd8d | 3013 | |
bb13109d LPC |
3014 | static void snd_soc_component_add(struct snd_soc_component *component) |
3015 | { | |
d191bd8d | 3016 | mutex_lock(&client_mutex); |
bb13109d | 3017 | snd_soc_component_add_unlocked(component); |
d191bd8d | 3018 | mutex_unlock(&client_mutex); |
bb13109d | 3019 | } |
d191bd8d | 3020 | |
bb13109d LPC |
3021 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
3022 | { | |
3023 | snd_soc_unregister_dais(component); | |
3024 | kfree(component->name); | |
3025 | } | |
d191bd8d | 3026 | |
bb13109d LPC |
3027 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
3028 | { | |
3029 | list_del(&component->list); | |
3030 | } | |
d191bd8d | 3031 | |
d191bd8d KM |
3032 | int snd_soc_register_component(struct device *dev, |
3033 | const struct snd_soc_component_driver *cmpnt_drv, | |
3034 | struct snd_soc_dai_driver *dai_drv, | |
3035 | int num_dai) | |
3036 | { | |
3037 | struct snd_soc_component *cmpnt; | |
bb13109d | 3038 | int ret; |
d191bd8d | 3039 | |
bb13109d | 3040 | cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); |
d191bd8d KM |
3041 | if (!cmpnt) { |
3042 | dev_err(dev, "ASoC: Failed to allocate memory\n"); | |
3043 | return -ENOMEM; | |
3044 | } | |
3045 | ||
bb13109d LPC |
3046 | ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); |
3047 | if (ret) | |
3048 | goto err_free; | |
3049 | ||
3d59400f | 3050 | cmpnt->ignore_pmdown_time = true; |
98e639fb | 3051 | cmpnt->registered_as_component = true; |
3d59400f | 3052 | |
bb13109d LPC |
3053 | ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); |
3054 | if (ret < 0) { | |
f42cf8d6 | 3055 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d LPC |
3056 | goto err_cleanup; |
3057 | } | |
d191bd8d | 3058 | |
bb13109d | 3059 | snd_soc_component_add(cmpnt); |
4da53393 | 3060 | |
bb13109d | 3061 | return 0; |
4da53393 | 3062 | |
bb13109d LPC |
3063 | err_cleanup: |
3064 | snd_soc_component_cleanup(cmpnt); | |
3065 | err_free: | |
3066 | kfree(cmpnt); | |
3067 | return ret; | |
4da53393 | 3068 | } |
bb13109d | 3069 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 3070 | |
d191bd8d KM |
3071 | /** |
3072 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
3073 | * | |
628536ea | 3074 | * @dev: The device to unregister |
d191bd8d KM |
3075 | */ |
3076 | void snd_soc_unregister_component(struct device *dev) | |
3077 | { | |
3078 | struct snd_soc_component *cmpnt; | |
3079 | ||
34e81ab4 | 3080 | mutex_lock(&client_mutex); |
d191bd8d | 3081 | list_for_each_entry(cmpnt, &component_list, list) { |
98e639fb | 3082 | if (dev == cmpnt->dev && cmpnt->registered_as_component) |
d191bd8d KM |
3083 | goto found; |
3084 | } | |
34e81ab4 | 3085 | mutex_unlock(&client_mutex); |
d191bd8d KM |
3086 | return; |
3087 | ||
3088 | found: | |
8a978234 | 3089 | snd_soc_tplg_component_remove(cmpnt, SND_SOC_TPLG_INDEX_ALL); |
34e81ab4 LPC |
3090 | snd_soc_component_del_unlocked(cmpnt); |
3091 | mutex_unlock(&client_mutex); | |
bb13109d LPC |
3092 | snd_soc_component_cleanup(cmpnt); |
3093 | kfree(cmpnt); | |
d191bd8d KM |
3094 | } |
3095 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 3096 | |
f1d45cc3 | 3097 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
3098 | { |
3099 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 3100 | |
f1d45cc3 | 3101 | return platform->driver->probe(platform); |
e2c330b9 LPC |
3102 | } |
3103 | ||
f1d45cc3 | 3104 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
3105 | { |
3106 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
3107 | ||
f1d45cc3 | 3108 | platform->driver->remove(platform); |
d191bd8d | 3109 | } |
d191bd8d | 3110 | |
12a48a8c | 3111 | /** |
71a45cda LPC |
3112 | * snd_soc_add_platform - Add a platform to the ASoC core |
3113 | * @dev: The parent device for the platform | |
3114 | * @platform: The platform to add | |
7d1442b4 | 3115 | * @platform_drv: The driver for the platform |
12a48a8c | 3116 | */ |
71a45cda | 3117 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 3118 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 3119 | { |
b37f1d12 LPC |
3120 | int ret; |
3121 | ||
bb13109d LPC |
3122 | ret = snd_soc_component_initialize(&platform->component, |
3123 | &platform_drv->component_driver, dev); | |
3124 | if (ret) | |
3125 | return ret; | |
12a48a8c | 3126 | |
f0fba2ad LG |
3127 | platform->dev = dev; |
3128 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
3129 | |
3130 | if (platform_drv->probe) | |
3131 | platform->component.probe = snd_soc_platform_drv_probe; | |
3132 | if (platform_drv->remove) | |
3133 | platform->component.remove = snd_soc_platform_drv_remove; | |
12a48a8c | 3134 | |
81c7cfd1 LPC |
3135 | #ifdef CONFIG_DEBUG_FS |
3136 | platform->component.debugfs_prefix = "platform"; | |
3137 | #endif | |
12a48a8c MB |
3138 | |
3139 | mutex_lock(&client_mutex); | |
bb13109d | 3140 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
3141 | list_add(&platform->list, &platform_list); |
3142 | mutex_unlock(&client_mutex); | |
3143 | ||
f4333203 LPC |
3144 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
3145 | platform->component.name); | |
12a48a8c MB |
3146 | |
3147 | return 0; | |
3148 | } | |
71a45cda | 3149 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
3150 | |
3151 | /** | |
71a45cda | 3152 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 3153 | * |
628536ea JC |
3154 | * @dev: The device for the platform |
3155 | * @platform_drv: The driver for the platform | |
12a48a8c | 3156 | */ |
71a45cda LPC |
3157 | int snd_soc_register_platform(struct device *dev, |
3158 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3159 | { |
f0fba2ad | 3160 | struct snd_soc_platform *platform; |
71a45cda | 3161 | int ret; |
f0fba2ad | 3162 | |
71a45cda | 3163 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 3164 | |
71a45cda LPC |
3165 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
3166 | if (platform == NULL) | |
3167 | return -ENOMEM; | |
3168 | ||
3169 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
3170 | if (ret) | |
3171 | kfree(platform); | |
3172 | ||
3173 | return ret; | |
3174 | } | |
3175 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3176 | ||
3177 | /** | |
3178 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
3179 | * @platform: the platform to remove | |
3180 | */ | |
3181 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
3182 | { | |
b37f1d12 | 3183 | |
12a48a8c MB |
3184 | mutex_lock(&client_mutex); |
3185 | list_del(&platform->list); | |
bb13109d | 3186 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
3187 | mutex_unlock(&client_mutex); |
3188 | ||
71a45cda | 3189 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 3190 | platform->component.name); |
decc27b0 DM |
3191 | |
3192 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
3193 | } |
3194 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
3195 | ||
3196 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
3197 | { | |
3198 | struct snd_soc_platform *platform; | |
3199 | ||
34e81ab4 | 3200 | mutex_lock(&client_mutex); |
71a45cda | 3201 | list_for_each_entry(platform, &platform_list, list) { |
34e81ab4 LPC |
3202 | if (dev == platform->dev) { |
3203 | mutex_unlock(&client_mutex); | |
71a45cda | 3204 | return platform; |
34e81ab4 | 3205 | } |
71a45cda | 3206 | } |
34e81ab4 | 3207 | mutex_unlock(&client_mutex); |
71a45cda LPC |
3208 | |
3209 | return NULL; | |
3210 | } | |
3211 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
3212 | ||
3213 | /** | |
3214 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3215 | * | |
628536ea | 3216 | * @dev: platform to unregister |
71a45cda LPC |
3217 | */ |
3218 | void snd_soc_unregister_platform(struct device *dev) | |
3219 | { | |
3220 | struct snd_soc_platform *platform; | |
3221 | ||
3222 | platform = snd_soc_lookup_platform(dev); | |
3223 | if (!platform) | |
3224 | return; | |
3225 | ||
3226 | snd_soc_remove_platform(platform); | |
f0fba2ad | 3227 | kfree(platform); |
12a48a8c MB |
3228 | } |
3229 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3230 | ||
151ab22c MB |
3231 | static u64 codec_format_map[] = { |
3232 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3233 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3234 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3235 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3236 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3237 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3238 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3239 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3240 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3241 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3242 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3243 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3244 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3245 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3246 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3247 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3248 | }; | |
3249 | ||
3250 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3251 | * the endianness of the data but we're using the CPU format | |
3252 | * definitions which do need to include endianness so we ensure that | |
3253 | * codec DAIs always have both big and little endian variants set. | |
3254 | */ | |
3255 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3256 | { | |
3257 | int i; | |
3258 | ||
3259 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3260 | if (stream->formats & codec_format_map[i]) | |
3261 | stream->formats |= codec_format_map[i]; | |
3262 | } | |
3263 | ||
f1d45cc3 LPC |
3264 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
3265 | { | |
3266 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3267 | ||
3268 | return codec->driver->probe(codec); | |
3269 | } | |
3270 | ||
3271 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
3272 | { | |
3273 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3274 | ||
3275 | codec->driver->remove(codec); | |
3276 | } | |
3277 | ||
e2c330b9 LPC |
3278 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
3279 | unsigned int reg, unsigned int val) | |
3280 | { | |
3281 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3282 | ||
3283 | return codec->driver->write(codec, reg, val); | |
3284 | } | |
3285 | ||
3286 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
3287 | unsigned int reg, unsigned int *val) | |
3288 | { | |
3289 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3290 | ||
3291 | *val = codec->driver->read(codec, reg); | |
3292 | ||
3293 | return 0; | |
3294 | } | |
3295 | ||
68f831c2 LPC |
3296 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
3297 | enum snd_soc_bias_level level) | |
3298 | { | |
3299 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
3300 | ||
3301 | return codec->driver->set_bias_level(codec, level); | |
3302 | } | |
3303 | ||
0d0cf00a MB |
3304 | /** |
3305 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3306 | * | |
628536ea JC |
3307 | * @dev: The parent device for this codec |
3308 | * @codec_drv: Codec driver | |
3309 | * @dai_drv: The associated DAI driver | |
3310 | * @num_dai: Number of DAIs | |
0d0cf00a | 3311 | */ |
f0fba2ad | 3312 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3313 | const struct snd_soc_codec_driver *codec_drv, |
3314 | struct snd_soc_dai_driver *dai_drv, | |
3315 | int num_dai) | |
0d0cf00a | 3316 | { |
4890140f | 3317 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3318 | struct snd_soc_codec *codec; |
bb13109d | 3319 | struct snd_soc_dai *dai; |
f0fba2ad | 3320 | int ret, i; |
151ab22c | 3321 | |
f0fba2ad LG |
3322 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3323 | ||
3324 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3325 | if (codec == NULL) | |
3326 | return -ENOMEM; | |
0d0cf00a | 3327 | |
f1d45cc3 | 3328 | codec->component.codec = codec; |
ce0fc93a | 3329 | |
bb13109d LPC |
3330 | ret = snd_soc_component_initialize(&codec->component, |
3331 | &codec_drv->component_driver, dev); | |
3332 | if (ret) | |
3333 | goto err_free; | |
f0fba2ad | 3334 | |
f1d45cc3 LPC |
3335 | if (codec_drv->controls) { |
3336 | codec->component.controls = codec_drv->controls; | |
3337 | codec->component.num_controls = codec_drv->num_controls; | |
3338 | } | |
3339 | if (codec_drv->dapm_widgets) { | |
3340 | codec->component.dapm_widgets = codec_drv->dapm_widgets; | |
3341 | codec->component.num_dapm_widgets = codec_drv->num_dapm_widgets; | |
3342 | } | |
3343 | if (codec_drv->dapm_routes) { | |
3344 | codec->component.dapm_routes = codec_drv->dapm_routes; | |
3345 | codec->component.num_dapm_routes = codec_drv->num_dapm_routes; | |
3346 | } | |
3347 | ||
3348 | if (codec_drv->probe) | |
3349 | codec->component.probe = snd_soc_codec_drv_probe; | |
3350 | if (codec_drv->remove) | |
3351 | codec->component.remove = snd_soc_codec_drv_remove; | |
e2c330b9 LPC |
3352 | if (codec_drv->write) |
3353 | codec->component.write = snd_soc_codec_drv_write; | |
3354 | if (codec_drv->read) | |
3355 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3356 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
4890140f LPC |
3357 | |
3358 | dapm = snd_soc_codec_get_dapm(codec); | |
3359 | dapm->idle_bias_off = codec_drv->idle_bias_off; | |
3360 | dapm->suspend_bias_off = codec_drv->suspend_bias_off; | |
14e8bdeb | 3361 | if (codec_drv->seq_notifier) |
4890140f | 3362 | dapm->seq_notifier = codec_drv->seq_notifier; |
68f831c2 | 3363 | if (codec_drv->set_bias_level) |
4890140f | 3364 | dapm->set_bias_level = snd_soc_codec_set_bias_level; |
7a30a3db DP |
3365 | codec->dev = dev; |
3366 | codec->driver = codec_drv; | |
e2c330b9 | 3367 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3368 | |
81c7cfd1 LPC |
3369 | #ifdef CONFIG_DEBUG_FS |
3370 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3371 | codec->component.debugfs_prefix = "codec"; | |
3372 | #endif | |
3373 | ||
886f5692 LPC |
3374 | if (codec_drv->get_regmap) |
3375 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3376 | |
f0fba2ad LG |
3377 | for (i = 0; i < num_dai; i++) { |
3378 | fixup_codec_formats(&dai_drv[i].playback); | |
3379 | fixup_codec_formats(&dai_drv[i].capture); | |
3380 | } | |
3381 | ||
bb13109d | 3382 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3383 | if (ret < 0) { |
f42cf8d6 | 3384 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d | 3385 | goto err_cleanup; |
26b01ccd | 3386 | } |
f0fba2ad | 3387 | |
bb13109d LPC |
3388 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3389 | dai->codec = codec; | |
f0fba2ad | 3390 | |
e1328a83 | 3391 | mutex_lock(&client_mutex); |
bb13109d | 3392 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3393 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3394 | mutex_unlock(&client_mutex); |
3395 | ||
f4333203 LPC |
3396 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3397 | codec->component.name); | |
0d0cf00a | 3398 | return 0; |
f0fba2ad | 3399 | |
bb13109d LPC |
3400 | err_cleanup: |
3401 | snd_soc_component_cleanup(&codec->component); | |
3402 | err_free: | |
f0fba2ad LG |
3403 | kfree(codec); |
3404 | return ret; | |
0d0cf00a MB |
3405 | } |
3406 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3407 | ||
3408 | /** | |
3409 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3410 | * | |
628536ea | 3411 | * @dev: codec to unregister |
0d0cf00a | 3412 | */ |
f0fba2ad | 3413 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3414 | { |
f0fba2ad | 3415 | struct snd_soc_codec *codec; |
f0fba2ad | 3416 | |
34e81ab4 | 3417 | mutex_lock(&client_mutex); |
f0fba2ad LG |
3418 | list_for_each_entry(codec, &codec_list, list) { |
3419 | if (dev == codec->dev) | |
3420 | goto found; | |
3421 | } | |
34e81ab4 | 3422 | mutex_unlock(&client_mutex); |
f0fba2ad LG |
3423 | return; |
3424 | ||
3425 | found: | |
0d0cf00a | 3426 | list_del(&codec->list); |
bb13109d | 3427 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3428 | mutex_unlock(&client_mutex); |
3429 | ||
f4333203 LPC |
3430 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3431 | codec->component.name); | |
f0fba2ad | 3432 | |
bb13109d | 3433 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3434 | snd_soc_cache_exit(codec); |
f0fba2ad | 3435 | kfree(codec); |
0d0cf00a MB |
3436 | } |
3437 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3438 | ||
bec4fa05 SW |
3439 | /* Retrieve a card's name from device tree */ |
3440 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3441 | const char *propname) | |
3442 | { | |
7e07e7c0 | 3443 | struct device_node *np; |
bec4fa05 SW |
3444 | int ret; |
3445 | ||
7e07e7c0 TB |
3446 | if (!card->dev) { |
3447 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3448 | return -EINVAL; | |
3449 | } | |
3450 | ||
3451 | np = card->dev->of_node; | |
3452 | ||
bec4fa05 SW |
3453 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3454 | /* | |
3455 | * EINVAL means the property does not exist. This is fine providing | |
3456 | * card->name was previously set, which is checked later in | |
3457 | * snd_soc_register_card. | |
3458 | */ | |
3459 | if (ret < 0 && ret != -EINVAL) { | |
3460 | dev_err(card->dev, | |
f110bfc7 | 3461 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3462 | propname, ret); |
3463 | return ret; | |
3464 | } | |
3465 | ||
3466 | return 0; | |
3467 | } | |
3468 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3469 | ||
9a6d4860 XL |
3470 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3471 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3472 | SND_SOC_DAPM_LINE("Line", NULL), | |
3473 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3474 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3475 | }; | |
3476 | ||
3477 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, | |
3478 | const char *propname) | |
3479 | { | |
3480 | struct device_node *np = card->dev->of_node; | |
3481 | struct snd_soc_dapm_widget *widgets; | |
3482 | const char *template, *wname; | |
3483 | int i, j, num_widgets, ret; | |
3484 | ||
3485 | num_widgets = of_property_count_strings(np, propname); | |
3486 | if (num_widgets < 0) { | |
3487 | dev_err(card->dev, | |
3488 | "ASoC: Property '%s' does not exist\n", propname); | |
3489 | return -EINVAL; | |
3490 | } | |
3491 | if (num_widgets & 1) { | |
3492 | dev_err(card->dev, | |
3493 | "ASoC: Property '%s' length is not even\n", propname); | |
3494 | return -EINVAL; | |
3495 | } | |
3496 | ||
3497 | num_widgets /= 2; | |
3498 | if (!num_widgets) { | |
3499 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3500 | propname); | |
3501 | return -EINVAL; | |
3502 | } | |
3503 | ||
3504 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3505 | GFP_KERNEL); | |
3506 | if (!widgets) { | |
3507 | dev_err(card->dev, | |
3508 | "ASoC: Could not allocate memory for widgets\n"); | |
3509 | return -ENOMEM; | |
3510 | } | |
3511 | ||
3512 | for (i = 0; i < num_widgets; i++) { | |
3513 | ret = of_property_read_string_index(np, propname, | |
3514 | 2 * i, &template); | |
3515 | if (ret) { | |
3516 | dev_err(card->dev, | |
3517 | "ASoC: Property '%s' index %d read error:%d\n", | |
3518 | propname, 2 * i, ret); | |
3519 | return -EINVAL; | |
3520 | } | |
3521 | ||
3522 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3523 | if (!strncmp(template, simple_widgets[j].name, | |
3524 | strlen(simple_widgets[j].name))) { | |
3525 | widgets[i] = simple_widgets[j]; | |
3526 | break; | |
3527 | } | |
3528 | } | |
3529 | ||
3530 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3531 | dev_err(card->dev, | |
3532 | "ASoC: DAPM widget '%s' is not supported\n", | |
3533 | template); | |
3534 | return -EINVAL; | |
3535 | } | |
3536 | ||
3537 | ret = of_property_read_string_index(np, propname, | |
3538 | (2 * i) + 1, | |
3539 | &wname); | |
3540 | if (ret) { | |
3541 | dev_err(card->dev, | |
3542 | "ASoC: Property '%s' index %d read error:%d\n", | |
3543 | propname, (2 * i) + 1, ret); | |
3544 | return -EINVAL; | |
3545 | } | |
3546 | ||
3547 | widgets[i].name = wname; | |
3548 | } | |
3549 | ||
f23e860e NC |
3550 | card->of_dapm_widgets = widgets; |
3551 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
3552 | |
3553 | return 0; | |
3554 | } | |
3555 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); | |
3556 | ||
6131084a JS |
3557 | static int snd_soc_of_get_slot_mask(struct device_node *np, |
3558 | const char *prop_name, | |
3559 | unsigned int *mask) | |
3560 | { | |
3561 | u32 val; | |
6c84e591 | 3562 | const __be32 *of_slot_mask = of_get_property(np, prop_name, &val); |
6131084a JS |
3563 | int i; |
3564 | ||
3565 | if (!of_slot_mask) | |
3566 | return 0; | |
3567 | val /= sizeof(u32); | |
3568 | for (i = 0; i < val; i++) | |
3569 | if (be32_to_cpup(&of_slot_mask[i])) | |
3570 | *mask |= (1 << i); | |
3571 | ||
3572 | return val; | |
3573 | } | |
3574 | ||
89c67857 | 3575 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
6131084a JS |
3576 | unsigned int *tx_mask, |
3577 | unsigned int *rx_mask, | |
89c67857 XL |
3578 | unsigned int *slots, |
3579 | unsigned int *slot_width) | |
3580 | { | |
3581 | u32 val; | |
3582 | int ret; | |
3583 | ||
6131084a JS |
3584 | if (tx_mask) |
3585 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask); | |
3586 | if (rx_mask) | |
3587 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask); | |
3588 | ||
89c67857 XL |
3589 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { |
3590 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3591 | if (ret) | |
3592 | return ret; | |
3593 | ||
3594 | if (slots) | |
3595 | *slots = val; | |
3596 | } | |
3597 | ||
3598 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3599 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3600 | if (ret) | |
3601 | return ret; | |
3602 | ||
3603 | if (slot_width) | |
3604 | *slot_width = val; | |
3605 | } | |
3606 | ||
3607 | return 0; | |
3608 | } | |
3609 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3610 | ||
5e3cdaa2 KM |
3611 | void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, |
3612 | struct snd_soc_codec_conf *codec_conf, | |
3613 | struct device_node *of_node, | |
3614 | const char *propname) | |
3615 | { | |
3616 | struct device_node *np = card->dev->of_node; | |
3617 | const char *str; | |
3618 | int ret; | |
3619 | ||
3620 | ret = of_property_read_string(np, propname, &str); | |
3621 | if (ret < 0) { | |
3622 | /* no prefix is not error */ | |
3623 | return; | |
3624 | } | |
3625 | ||
3626 | codec_conf->of_node = of_node; | |
3627 | codec_conf->name_prefix = str; | |
3628 | } | |
3629 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix); | |
3630 | ||
a4a54dd5 SW |
3631 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3632 | const char *propname) | |
3633 | { | |
3634 | struct device_node *np = card->dev->of_node; | |
e3b1e6a1 | 3635 | int num_routes; |
a4a54dd5 SW |
3636 | struct snd_soc_dapm_route *routes; |
3637 | int i, ret; | |
3638 | ||
3639 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3640 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3641 | dev_err(card->dev, |
3642 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3643 | propname); | |
a4a54dd5 SW |
3644 | return -EINVAL; |
3645 | } | |
3646 | num_routes /= 2; | |
3647 | if (!num_routes) { | |
f110bfc7 | 3648 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3649 | propname); |
3650 | return -EINVAL; | |
3651 | } | |
3652 | ||
e3b1e6a1 | 3653 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3654 | GFP_KERNEL); |
3655 | if (!routes) { | |
3656 | dev_err(card->dev, | |
f110bfc7 | 3657 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3658 | return -EINVAL; |
3659 | } | |
3660 | ||
3661 | for (i = 0; i < num_routes; i++) { | |
3662 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3663 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3664 | if (ret) { |
c871bd0b MB |
3665 | dev_err(card->dev, |
3666 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3667 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3668 | return -EINVAL; |
3669 | } | |
3670 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3671 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3672 | if (ret) { |
3673 | dev_err(card->dev, | |
c871bd0b MB |
3674 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3675 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3676 | return -EINVAL; |
3677 | } | |
3678 | } | |
3679 | ||
f23e860e NC |
3680 | card->num_of_dapm_routes = num_routes; |
3681 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
3682 | |
3683 | return 0; | |
3684 | } | |
3685 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3686 | ||
a7930ed4 | 3687 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3688 | const char *prefix, |
3689 | struct device_node **bitclkmaster, | |
3690 | struct device_node **framemaster) | |
a7930ed4 KM |
3691 | { |
3692 | int ret, i; | |
3693 | char prop[128]; | |
3694 | unsigned int format = 0; | |
3695 | int bit, frame; | |
3696 | const char *str; | |
3697 | struct { | |
3698 | char *name; | |
3699 | unsigned int val; | |
3700 | } of_fmt_table[] = { | |
3701 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3702 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3703 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3704 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3705 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3706 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3707 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3708 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3709 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3710 | }; |
3711 | ||
3712 | if (!prefix) | |
3713 | prefix = ""; | |
3714 | ||
3715 | /* | |
3716 | * check "[prefix]format = xxx" | |
3717 | * SND_SOC_DAIFMT_FORMAT_MASK area | |
3718 | */ | |
3719 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3720 | ret = of_property_read_string(np, prop, &str); | |
3721 | if (ret == 0) { | |
3722 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3723 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3724 | format |= of_fmt_table[i].val; | |
3725 | break; | |
3726 | } | |
3727 | } | |
3728 | } | |
3729 | ||
3730 | /* | |
8c2d6a9f | 3731 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3732 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3733 | */ | |
8c2d6a9f KM |
3734 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
3735 | if (of_get_property(np, prop, NULL)) | |
3736 | format |= SND_SOC_DAIFMT_CONT; | |
3737 | else | |
3738 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3739 | |
3740 | /* | |
3741 | * check "[prefix]bitclock-inversion" | |
3742 | * check "[prefix]frame-inversion" | |
3743 | * SND_SOC_DAIFMT_INV_MASK area | |
3744 | */ | |
3745 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3746 | bit = !!of_get_property(np, prop, NULL); | |
3747 | ||
3748 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3749 | frame = !!of_get_property(np, prop, NULL); | |
3750 | ||
3751 | switch ((bit << 4) + frame) { | |
3752 | case 0x11: | |
3753 | format |= SND_SOC_DAIFMT_IB_IF; | |
3754 | break; | |
3755 | case 0x10: | |
3756 | format |= SND_SOC_DAIFMT_IB_NF; | |
3757 | break; | |
3758 | case 0x01: | |
3759 | format |= SND_SOC_DAIFMT_NB_IF; | |
3760 | break; | |
3761 | default: | |
3762 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
3763 | break; | |
3764 | } | |
3765 | ||
3766 | /* | |
3767 | * check "[prefix]bitclock-master" | |
3768 | * check "[prefix]frame-master" | |
3769 | * SND_SOC_DAIFMT_MASTER_MASK area | |
3770 | */ | |
3771 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
3772 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3773 | if (bit && bitclkmaster) |
3774 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3775 | |
3776 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
3777 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3778 | if (frame && framemaster) |
3779 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3780 | |
3781 | switch ((bit << 4) + frame) { | |
3782 | case 0x11: | |
3783 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
3784 | break; | |
3785 | case 0x10: | |
3786 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
3787 | break; | |
3788 | case 0x01: | |
3789 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
3790 | break; | |
3791 | default: | |
3792 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
3793 | break; | |
3794 | } | |
3795 | ||
3796 | return format; | |
3797 | } | |
3798 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
3799 | ||
93b0f3ee JFM |
3800 | static int snd_soc_get_dai_name(struct of_phandle_args *args, |
3801 | const char **dai_name) | |
cb470087 KM |
3802 | { |
3803 | struct snd_soc_component *pos; | |
3e0aa8d8 | 3804 | struct device_node *component_of_node; |
93b0f3ee | 3805 | int ret = -EPROBE_DEFER; |
cb470087 KM |
3806 | |
3807 | mutex_lock(&client_mutex); | |
3808 | list_for_each_entry(pos, &component_list, list) { | |
3e0aa8d8 JS |
3809 | component_of_node = pos->dev->of_node; |
3810 | if (!component_of_node && pos->dev->parent) | |
3811 | component_of_node = pos->dev->parent->of_node; | |
3812 | ||
3813 | if (component_of_node != args->np) | |
cb470087 KM |
3814 | continue; |
3815 | ||
6833c452 | 3816 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
3817 | ret = pos->driver->of_xlate_dai_name(pos, |
3818 | args, | |
3819 | dai_name); | |
6833c452 KM |
3820 | } else { |
3821 | int id = -1; | |
3822 | ||
93b0f3ee | 3823 | switch (args->args_count) { |
6833c452 KM |
3824 | case 0: |
3825 | id = 0; /* same as dai_drv[0] */ | |
3826 | break; | |
3827 | case 1: | |
93b0f3ee | 3828 | id = args->args[0]; |
6833c452 KM |
3829 | break; |
3830 | default: | |
3831 | /* not supported */ | |
3832 | break; | |
3833 | } | |
3834 | ||
3835 | if (id < 0 || id >= pos->num_dai) { | |
3836 | ret = -EINVAL; | |
3dcba280 | 3837 | continue; |
6833c452 | 3838 | } |
e41975ed XL |
3839 | |
3840 | ret = 0; | |
3841 | ||
3842 | *dai_name = pos->dai_drv[id].name; | |
3843 | if (!*dai_name) | |
3844 | *dai_name = pos->name; | |
cb470087 KM |
3845 | } |
3846 | ||
cb470087 KM |
3847 | break; |
3848 | } | |
3849 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3850 | return ret; |
3851 | } | |
3852 | ||
3853 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3854 | const char **dai_name) | |
3855 | { | |
3856 | struct of_phandle_args args; | |
3857 | int ret; | |
3858 | ||
3859 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3860 | "#sound-dai-cells", 0, &args); | |
3861 | if (ret) | |
3862 | return ret; | |
3863 | ||
3864 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3865 | |
3866 | of_node_put(args.np); | |
3867 | ||
3868 | return ret; | |
3869 | } | |
3870 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3871 | ||
93b0f3ee JFM |
3872 | /* |
3873 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3874 | * @dev: Card device | |
3875 | * @of_node: Device node | |
3876 | * @dai_link: DAI link | |
3877 | * | |
3878 | * Builds an array of CODEC DAI components from the DAI link property | |
3879 | * 'sound-dai'. | |
3880 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
3881 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
3882 | * | |
3883 | * Returns 0 for success | |
3884 | */ | |
3885 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3886 | struct device_node *of_node, | |
3887 | struct snd_soc_dai_link *dai_link) | |
3888 | { | |
3889 | struct of_phandle_args args; | |
3890 | struct snd_soc_dai_link_component *component; | |
3891 | char *name; | |
3892 | int index, num_codecs, ret; | |
3893 | ||
3894 | /* Count the number of CODECs */ | |
3895 | name = "sound-dai"; | |
3896 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3897 | "#sound-dai-cells"); | |
3898 | if (num_codecs <= 0) { | |
3899 | if (num_codecs == -ENOENT) | |
3900 | dev_err(dev, "No 'sound-dai' property\n"); | |
3901 | else | |
3902 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3903 | return num_codecs; | |
3904 | } | |
3905 | component = devm_kzalloc(dev, | |
3906 | sizeof *component * num_codecs, | |
3907 | GFP_KERNEL); | |
3908 | if (!component) | |
3909 | return -ENOMEM; | |
3910 | dai_link->codecs = component; | |
3911 | dai_link->num_codecs = num_codecs; | |
3912 | ||
3913 | /* Parse the list */ | |
3914 | for (index = 0, component = dai_link->codecs; | |
3915 | index < dai_link->num_codecs; | |
3916 | index++, component++) { | |
3917 | ret = of_parse_phandle_with_args(of_node, name, | |
3918 | "#sound-dai-cells", | |
3919 | index, &args); | |
3920 | if (ret) | |
3921 | goto err; | |
3922 | component->of_node = args.np; | |
3923 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3924 | if (ret < 0) | |
3925 | goto err; | |
3926 | } | |
3927 | return 0; | |
3928 | err: | |
3929 | for (index = 0, component = dai_link->codecs; | |
3930 | index < dai_link->num_codecs; | |
3931 | index++, component++) { | |
3932 | if (!component->of_node) | |
3933 | break; | |
3934 | of_node_put(component->of_node); | |
3935 | component->of_node = NULL; | |
3936 | } | |
3937 | dai_link->codecs = NULL; | |
3938 | dai_link->num_codecs = 0; | |
3939 | return ret; | |
3940 | } | |
3941 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3942 | ||
c9b3a40f | 3943 | static int __init snd_soc_init(void) |
db2a4165 | 3944 | { |
6553bf06 | 3945 | snd_soc_debugfs_init(); |
fb257897 MB |
3946 | snd_soc_util_init(); |
3947 | ||
db2a4165 FM |
3948 | return platform_driver_register(&soc_driver); |
3949 | } | |
4abe8e16 | 3950 | module_init(snd_soc_init); |
db2a4165 | 3951 | |
7d8c16a6 | 3952 | static void __exit snd_soc_exit(void) |
db2a4165 | 3953 | { |
fb257897 | 3954 | snd_soc_util_exit(); |
6553bf06 | 3955 | snd_soc_debugfs_exit(); |
fb257897 | 3956 | |
384c89e2 | 3957 | #ifdef CONFIG_DEBUG_FS |
384c89e2 | 3958 | #endif |
3ff3f64b | 3959 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3960 | } |
db2a4165 FM |
3961 | module_exit(snd_soc_exit); |
3962 | ||
3963 | /* Module information */ | |
d331124d | 3964 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3965 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3966 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3967 | MODULE_ALIAS("platform:soc-audio"); |