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Commit | Line | Data |
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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); |
d9fc4063 | 629 | struct snd_soc_component *component; |
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 */ |
d9fc4063 KM |
706 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
707 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); | |
708 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
709 | ||
710 | if (!codec) | |
711 | continue; | |
4890140f | 712 | |
f0fba2ad LG |
713 | /* If there are paths active then the CODEC will be held with |
714 | * bias _ON and should not be suspended. */ | |
a8093297 | 715 | if (!codec->suspended) { |
4890140f | 716 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
f0fba2ad | 717 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
718 | /* |
719 | * If the CODEC is capable of idle | |
720 | * bias off then being in STANDBY | |
721 | * means it's doing something, | |
722 | * otherwise fall through. | |
723 | */ | |
4890140f | 724 | if (dapm->idle_bias_off) { |
125a25da | 725 | dev_dbg(codec->dev, |
10e8aa9a | 726 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
727 | break; |
728 | } | |
a8093297 | 729 | |
f0fba2ad | 730 | case SND_SOC_BIAS_OFF: |
a8093297 LPC |
731 | if (codec->driver->suspend) |
732 | codec->driver->suspend(codec); | |
f0fba2ad | 733 | codec->suspended = 1; |
e2c330b9 LPC |
734 | if (codec->component.regmap) |
735 | regcache_mark_dirty(codec->component.regmap); | |
988e8cc4 NC |
736 | /* deactivate pins to sleep state */ |
737 | pinctrl_pm_select_sleep_state(codec->dev); | |
f0fba2ad LG |
738 | break; |
739 | default: | |
10e8aa9a MM |
740 | dev_dbg(codec->dev, |
741 | "ASoC: CODEC is on over suspend\n"); | |
f0fba2ad LG |
742 | break; |
743 | } | |
1547aba9 MB |
744 | } |
745 | } | |
db2a4165 | 746 | |
1a497983 ML |
747 | list_for_each_entry(rtd, &card->rtd_list, list) { |
748 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 749 | |
1a497983 | 750 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
751 | continue; |
752 | ||
bc263214 | 753 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 754 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
755 | |
756 | /* deactivate pins to sleep state */ | |
757 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
758 | } |
759 | ||
87506549 | 760 | if (card->suspend_post) |
70b2ac12 | 761 | card->suspend_post(card); |
db2a4165 FM |
762 | |
763 | return 0; | |
764 | } | |
6f8ab4ac | 765 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 766 | |
6ed25978 AG |
767 | /* deferred resume work, so resume can complete before we finished |
768 | * setting our codec back up, which can be very slow on I2C | |
769 | */ | |
770 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 771 | { |
f0fba2ad LG |
772 | struct snd_soc_card *card = |
773 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1a497983 | 774 | struct snd_soc_pcm_runtime *rtd; |
d9fc4063 | 775 | struct snd_soc_component *component; |
1a497983 | 776 | int i; |
db2a4165 | 777 | |
6ed25978 AG |
778 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
779 | * so userspace apps are blocked from touching us | |
780 | */ | |
781 | ||
f110bfc7 | 782 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 783 | |
9949788b | 784 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 785 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 786 | |
87506549 | 787 | if (card->resume_pre) |
70b2ac12 | 788 | card->resume_pre(card); |
db2a4165 | 789 | |
bc263214 | 790 | /* resume control bus DAIs */ |
1a497983 ML |
791 | list_for_each_entry(rtd, &card->rtd_list, list) { |
792 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 793 | |
1a497983 | 794 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
795 | continue; |
796 | ||
bc263214 | 797 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
798 | cpu_dai->driver->resume(cpu_dai); |
799 | } | |
800 | ||
d9fc4063 KM |
801 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
802 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
803 | ||
804 | if (!codec) | |
805 | continue; | |
806 | ||
a8093297 | 807 | if (codec->suspended) { |
b8faaba4 LPC |
808 | if (codec->driver->resume) |
809 | codec->driver->resume(codec); | |
810 | codec->suspended = 0; | |
1547aba9 MB |
811 | } |
812 | } | |
db2a4165 | 813 | |
1a497983 | 814 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 815 | |
1a497983 | 816 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
817 | continue; |
818 | ||
1a497983 | 819 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 820 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 821 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 822 | |
1a497983 | 823 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 824 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 825 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
826 | } |
827 | ||
3ff3f64b | 828 | /* unmute any active DACs */ |
1a497983 | 829 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 830 | |
1a497983 | 831 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
832 | continue; |
833 | ||
1a497983 ML |
834 | for (i = 0; i < rtd->num_codecs; i++) { |
835 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
836 | struct snd_soc_dai_driver *drv = dai->driver; |
837 | ||
838 | if (drv->ops->digital_mute && dai->playback_active) | |
839 | drv->ops->digital_mute(dai, 0); | |
840 | } | |
db2a4165 FM |
841 | } |
842 | ||
1a497983 ML |
843 | list_for_each_entry(rtd, &card->rtd_list, list) { |
844 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 845 | |
1a497983 | 846 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
847 | continue; |
848 | ||
bc263214 | 849 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 850 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
851 | } |
852 | ||
87506549 | 853 | if (card->resume_post) |
70b2ac12 | 854 | card->resume_post(card); |
db2a4165 | 855 | |
f110bfc7 | 856 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 | 857 | |
8be4da29 LPC |
858 | /* Recheck all endpoints too, their state is affected by suspend */ |
859 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 860 | snd_soc_dapm_sync(&card->dapm); |
1a7aaa58 JK |
861 | |
862 | /* userspace can access us now we are back as we were before */ | |
863 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); | |
6ed25978 AG |
864 | } |
865 | ||
866 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 867 | int snd_soc_resume(struct device *dev) |
6ed25978 | 868 | { |
6f8ab4ac | 869 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 | 870 | bool bus_control = false; |
1a497983 | 871 | struct snd_soc_pcm_runtime *rtd; |
b9dd94a8 | 872 | |
c5599b87 LPC |
873 | /* If the card is not initialized yet there is nothing to do */ |
874 | if (!card->instantiated) | |
5ff1ddf2 EM |
875 | return 0; |
876 | ||
988e8cc4 | 877 | /* activate pins from sleep state */ |
1a497983 | 878 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
879 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
880 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
881 | int j; | |
882 | ||
988e8cc4 NC |
883 | if (cpu_dai->active) |
884 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
885 | |
886 | for (j = 0; j < rtd->num_codecs; j++) { | |
887 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
888 | if (codec_dai->active) | |
889 | pinctrl_pm_select_default_state(codec_dai->dev); | |
890 | } | |
988e8cc4 NC |
891 | } |
892 | ||
bc263214 LPC |
893 | /* |
894 | * DAIs that also act as the control bus master might have other drivers | |
895 | * hanging off them so need to resume immediately. Other drivers don't | |
896 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
897 | * due to I/O costs and anti-pop so handle them out of line. |
898 | */ | |
1a497983 ML |
899 | list_for_each_entry(rtd, &card->rtd_list, list) { |
900 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
bc263214 | 901 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 902 | } |
bc263214 LPC |
903 | if (bus_control) { |
904 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
905 | soc_resume_deferred(&card->deferred_resume_work); |
906 | } else { | |
f110bfc7 | 907 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 908 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 909 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 910 | } |
6ed25978 | 911 | |
db2a4165 FM |
912 | return 0; |
913 | } | |
6f8ab4ac | 914 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 915 | #else |
6f8ab4ac MB |
916 | #define snd_soc_suspend NULL |
917 | #define snd_soc_resume NULL | |
db2a4165 FM |
918 | #endif |
919 | ||
85e7652d | 920 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
921 | }; |
922 | ||
65d9361f LPC |
923 | static struct snd_soc_component *soc_find_component( |
924 | const struct device_node *of_node, const char *name) | |
12023a9a | 925 | { |
65d9361f | 926 | struct snd_soc_component *component; |
12023a9a | 927 | |
34e81ab4 LPC |
928 | lockdep_assert_held(&client_mutex); |
929 | ||
65d9361f LPC |
930 | list_for_each_entry(component, &component_list, list) { |
931 | if (of_node) { | |
932 | if (component->dev->of_node == of_node) | |
933 | return component; | |
934 | } else if (strcmp(component->name, name) == 0) { | |
935 | return component; | |
12023a9a | 936 | } |
12023a9a MLC |
937 | } |
938 | ||
939 | return NULL; | |
940 | } | |
941 | ||
fbb88b5c ML |
942 | /** |
943 | * snd_soc_find_dai - Find a registered DAI | |
944 | * | |
945 | * @dlc: name of the DAI and optional component info to match | |
946 | * | |
947 | * This function will search all regsitered components and their DAIs to | |
948 | * find the DAI of the same name. The component's of_node and name | |
949 | * should also match if being specified. | |
950 | * | |
951 | * Return: pointer of DAI, or NULL if not found. | |
952 | */ | |
305e9020 | 953 | struct snd_soc_dai *snd_soc_find_dai( |
14621c7e | 954 | const struct snd_soc_dai_link_component *dlc) |
12023a9a | 955 | { |
14621c7e LPC |
956 | struct snd_soc_component *component; |
957 | struct snd_soc_dai *dai; | |
3e0aa8d8 | 958 | struct device_node *component_of_node; |
12023a9a | 959 | |
34e81ab4 LPC |
960 | lockdep_assert_held(&client_mutex); |
961 | ||
14621c7e LPC |
962 | /* Find CPU DAI from registered DAIs*/ |
963 | list_for_each_entry(component, &component_list, list) { | |
3e0aa8d8 JS |
964 | component_of_node = component->dev->of_node; |
965 | if (!component_of_node && component->dev->parent) | |
966 | component_of_node = component->dev->parent->of_node; | |
967 | ||
968 | if (dlc->of_node && component_of_node != dlc->of_node) | |
14621c7e | 969 | continue; |
1ffae361 | 970 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
971 | continue; |
972 | list_for_each_entry(dai, &component->dai_list, list) { | |
973 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 974 | continue; |
12023a9a | 975 | |
14621c7e | 976 | return dai; |
12023a9a MLC |
977 | } |
978 | } | |
979 | ||
980 | return NULL; | |
981 | } | |
305e9020 | 982 | EXPORT_SYMBOL_GPL(snd_soc_find_dai); |
12023a9a | 983 | |
49a5ba1c ML |
984 | static bool soc_is_dai_link_bound(struct snd_soc_card *card, |
985 | struct snd_soc_dai_link *dai_link) | |
986 | { | |
987 | struct snd_soc_pcm_runtime *rtd; | |
988 | ||
989 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
990 | if (rtd->dai_link == dai_link) | |
991 | return true; | |
992 | } | |
993 | ||
994 | return false; | |
995 | } | |
996 | ||
6f2f1ff0 ML |
997 | static int soc_bind_dai_link(struct snd_soc_card *card, |
998 | struct snd_soc_dai_link *dai_link) | |
db2a4165 | 999 | { |
1a497983 | 1000 | struct snd_soc_pcm_runtime *rtd; |
88bd870f | 1001 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 1002 | struct snd_soc_dai_link_component cpu_dai_component; |
1a497983 | 1003 | struct snd_soc_dai **codec_dais; |
435c5e25 | 1004 | struct snd_soc_platform *platform; |
848dd8be | 1005 | const char *platform_name; |
88bd870f | 1006 | int i; |
435c5e25 | 1007 | |
6f2f1ff0 | 1008 | dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); |
435c5e25 | 1009 | |
49a5ba1c ML |
1010 | if (soc_is_dai_link_bound(card, dai_link)) { |
1011 | dev_dbg(card->dev, "ASoC: dai link %s already bound\n", | |
1012 | dai_link->name); | |
1013 | return 0; | |
1014 | } | |
435c5e25 | 1015 | |
513cb311 SM |
1016 | rtd = soc_new_pcm_runtime(card, dai_link); |
1017 | if (!rtd) | |
1018 | return -ENOMEM; | |
1019 | ||
14621c7e LPC |
1020 | cpu_dai_component.name = dai_link->cpu_name; |
1021 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
1022 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
1023 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 1024 | if (!rtd->cpu_dai) { |
f110bfc7 | 1025 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b | 1026 | dai_link->cpu_dai_name); |
1a497983 | 1027 | goto _err_defer; |
f0fba2ad LG |
1028 | } |
1029 | ||
88bd870f | 1030 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 1031 | |
88bd870f | 1032 | /* Find CODEC from registered CODECs */ |
1a497983 | 1033 | codec_dais = rtd->codec_dais; |
88bd870f | 1034 | for (i = 0; i < rtd->num_codecs; i++) { |
14621c7e | 1035 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
1036 | if (!codec_dais[i]) { |
1037 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
1038 | codecs[i].dai_name); | |
1a497983 | 1039 | goto _err_defer; |
88bd870f | 1040 | } |
12023a9a MLC |
1041 | } |
1042 | ||
88bd870f BC |
1043 | /* Single codec links expect codec and codec_dai in runtime data */ |
1044 | rtd->codec_dai = codec_dais[0]; | |
1045 | rtd->codec = rtd->codec_dai->codec; | |
1046 | ||
848dd8be MB |
1047 | /* if there's no platform we match on the empty platform */ |
1048 | platform_name = dai_link->platform_name; | |
5a504963 | 1049 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
1050 | platform_name = "snd-soc-dummy"; |
1051 | ||
b19e6e7b | 1052 | /* find one from the set of registered platforms */ |
f0fba2ad | 1053 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
1054 | if (dai_link->platform_of_node) { |
1055 | if (platform->dev->of_node != | |
1056 | dai_link->platform_of_node) | |
1057 | continue; | |
1058 | } else { | |
f4333203 | 1059 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
1060 | continue; |
1061 | } | |
2610ab77 SW |
1062 | |
1063 | rtd->platform = platform; | |
02a06d30 | 1064 | } |
b19e6e7b | 1065 | if (!rtd->platform) { |
f110bfc7 | 1066 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 1067 | dai_link->platform_name); |
70fcad49 | 1068 | goto _err_defer; |
f0fba2ad | 1069 | } |
b19e6e7b | 1070 | |
1a497983 | 1071 | soc_add_pcm_runtime(card, rtd); |
b19e6e7b | 1072 | return 0; |
1a497983 ML |
1073 | |
1074 | _err_defer: | |
1075 | soc_free_pcm_runtime(rtd); | |
1076 | return -EPROBE_DEFER; | |
f0fba2ad LG |
1077 | } |
1078 | ||
f1d45cc3 | 1079 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 1080 | { |
abd31b32 | 1081 | if (!component->card) |
70090bbb | 1082 | return; |
d12cd198 | 1083 | |
d9fc4063 | 1084 | list_del(&component->card_list); |
589c3563 | 1085 | |
f1d45cc3 LPC |
1086 | if (component->remove) |
1087 | component->remove(component); | |
589c3563 | 1088 | |
f1d45cc3 | 1089 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 1090 | |
f1d45cc3 | 1091 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1092 | component->card = NULL; |
f1d45cc3 | 1093 | module_put(component->dev->driver->owner); |
589c3563 JN |
1094 | } |
1095 | ||
e60cd14f | 1096 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 1097 | { |
f0fba2ad LG |
1098 | int err; |
1099 | ||
e60cd14f LPC |
1100 | if (dai && dai->probed && |
1101 | dai->driver->remove_order == order) { | |
1102 | if (dai->driver->remove) { | |
1103 | err = dai->driver->remove(dai); | |
f0fba2ad | 1104 | if (err < 0) |
e60cd14f | 1105 | dev_err(dai->dev, |
f110bfc7 | 1106 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 1107 | dai->name, err); |
6b05eda6 | 1108 | } |
e60cd14f | 1109 | dai->probed = 0; |
f0fba2ad | 1110 | } |
b0aa88af MLC |
1111 | } |
1112 | ||
1a497983 ML |
1113 | static void soc_remove_link_dais(struct snd_soc_card *card, |
1114 | struct snd_soc_pcm_runtime *rtd, int order) | |
b0aa88af | 1115 | { |
e60cd14f | 1116 | int i; |
b0aa88af MLC |
1117 | |
1118 | /* unregister the rtd device */ | |
1119 | if (rtd->dev_registered) { | |
b0aa88af MLC |
1120 | device_unregister(rtd->dev); |
1121 | rtd->dev_registered = 0; | |
1122 | } | |
1123 | ||
1124 | /* remove the CODEC DAI */ | |
88bd870f | 1125 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 1126 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 1127 | |
e60cd14f | 1128 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 1129 | } |
db2a4165 | 1130 | |
1a497983 ML |
1131 | static void soc_remove_link_components(struct snd_soc_card *card, |
1132 | struct snd_soc_pcm_runtime *rtd, int order) | |
62ae68fa | 1133 | { |
62ae68fa | 1134 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
62ae68fa | 1135 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1136 | struct snd_soc_component *component; |
88bd870f | 1137 | int i; |
62ae68fa SW |
1138 | |
1139 | /* remove the platform */ | |
70090bbb | 1140 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1141 | soc_remove_component(&platform->component); |
62ae68fa SW |
1142 | |
1143 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1144 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1145 | component = rtd->codec_dais[i]->component; |
70090bbb | 1146 | if (component->driver->remove_order == order) |
61aca564 | 1147 | soc_remove_component(component); |
62ae68fa SW |
1148 | } |
1149 | ||
1150 | /* remove any CPU-side CODEC */ | |
1151 | if (cpu_dai) { | |
70090bbb | 1152 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1153 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1154 | } |
1155 | } | |
1156 | ||
0671fd8e KM |
1157 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1158 | { | |
1a497983 ML |
1159 | int order; |
1160 | struct snd_soc_pcm_runtime *rtd; | |
f8f80361 | 1161 | struct snd_soc_dai_link *link, *_link; |
0671fd8e | 1162 | |
0168bf0d LG |
1163 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1164 | order++) { | |
1a497983 ML |
1165 | list_for_each_entry(rtd, &card->rtd_list, list) |
1166 | soc_remove_link_dais(card, rtd, order); | |
62ae68fa SW |
1167 | } |
1168 | ||
1169 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1170 | order++) { | |
1a497983 ML |
1171 | list_for_each_entry(rtd, &card->rtd_list, list) |
1172 | soc_remove_link_components(card, rtd, order); | |
0168bf0d | 1173 | } |
62ae68fa | 1174 | |
f8f80361 ML |
1175 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1176 | if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK) | |
1177 | dev_warn(card->dev, "Topology forgot to remove link %s?\n", | |
1178 | link->name); | |
1179 | ||
1180 | list_del(&link->list); | |
1181 | card->num_dai_links--; | |
1182 | } | |
0671fd8e KM |
1183 | } |
1184 | ||
923c5e61 ML |
1185 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
1186 | struct snd_soc_dai_link *dai_link) | |
1187 | { | |
1188 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
1189 | if (dai_link->codec_name || dai_link->codec_of_node || | |
1190 | dai_link->codec_dai_name) { | |
1191 | dai_link->num_codecs = 1; | |
1192 | ||
1193 | dai_link->codecs = devm_kzalloc(card->dev, | |
1194 | sizeof(struct snd_soc_dai_link_component), | |
1195 | GFP_KERNEL); | |
1196 | if (!dai_link->codecs) | |
1197 | return -ENOMEM; | |
1198 | ||
1199 | dai_link->codecs[0].name = dai_link->codec_name; | |
1200 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
1201 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
1202 | } | |
1203 | ||
1204 | if (!dai_link->codecs) { | |
1205 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
1206 | return -EINVAL; | |
1207 | } | |
1208 | ||
1209 | return 0; | |
1210 | } | |
1211 | ||
1212 | static int soc_init_dai_link(struct snd_soc_card *card, | |
1213 | struct snd_soc_dai_link *link) | |
1214 | { | |
1215 | int i, ret; | |
1216 | ||
1217 | ret = snd_soc_init_multicodec(card, link); | |
1218 | if (ret) { | |
1219 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
1220 | return ret; | |
1221 | } | |
1222 | ||
1223 | for (i = 0; i < link->num_codecs; i++) { | |
1224 | /* | |
1225 | * Codec must be specified by 1 of name or OF node, | |
1226 | * not both or neither. | |
1227 | */ | |
1228 | if (!!link->codecs[i].name == | |
1229 | !!link->codecs[i].of_node) { | |
1230 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
1231 | link->name); | |
1232 | return -EINVAL; | |
1233 | } | |
1234 | /* Codec DAI name must be specified */ | |
1235 | if (!link->codecs[i].dai_name) { | |
1236 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
1237 | link->name); | |
1238 | return -EINVAL; | |
1239 | } | |
1240 | } | |
1241 | ||
1242 | /* | |
1243 | * Platform may be specified by either name or OF node, but | |
1244 | * can be left unspecified, and a dummy platform will be used. | |
1245 | */ | |
1246 | if (link->platform_name && link->platform_of_node) { | |
1247 | dev_err(card->dev, | |
1248 | "ASoC: Both platform name/of_node are set for %s\n", | |
1249 | link->name); | |
1250 | return -EINVAL; | |
1251 | } | |
1252 | ||
1253 | /* | |
1254 | * CPU device may be specified by either name or OF node, but | |
1255 | * can be left unspecified, and will be matched based on DAI | |
1256 | * name alone.. | |
1257 | */ | |
1258 | if (link->cpu_name && link->cpu_of_node) { | |
1259 | dev_err(card->dev, | |
1260 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
1261 | link->name); | |
1262 | return -EINVAL; | |
1263 | } | |
1264 | /* | |
1265 | * At least one of CPU DAI name or CPU device name/node must be | |
1266 | * specified | |
1267 | */ | |
1268 | if (!link->cpu_dai_name && | |
1269 | !(link->cpu_name || link->cpu_of_node)) { | |
1270 | dev_err(card->dev, | |
1271 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
1272 | link->name); | |
1273 | return -EINVAL; | |
1274 | } | |
1275 | ||
1276 | return 0; | |
0671fd8e KM |
1277 | } |
1278 | ||
f8f80361 ML |
1279 | /** |
1280 | * snd_soc_add_dai_link - Add a DAI link dynamically | |
1281 | * @card: The ASoC card to which the DAI link is added | |
1282 | * @dai_link: The new DAI link to add | |
1283 | * | |
1284 | * This function adds a DAI link to the ASoC card's link list. | |
1285 | * | |
1286 | * Note: Topology can use this API to add DAI links when probing the | |
1287 | * topology component. And machine drivers can still define static | |
1288 | * DAI links in dai_link array. | |
1289 | */ | |
1290 | int snd_soc_add_dai_link(struct snd_soc_card *card, | |
1291 | struct snd_soc_dai_link *dai_link) | |
1292 | { | |
1293 | if (dai_link->dobj.type | |
1294 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1295 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1296 | dai_link->dobj.type); | |
1297 | return -EINVAL; | |
1298 | } | |
1299 | ||
1300 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1301 | /* Notify the machine driver for extra initialization |
1302 | * on the link created by topology. | |
1303 | */ | |
1304 | if (dai_link->dobj.type && card->add_dai_link) | |
1305 | card->add_dai_link(card, dai_link); | |
1306 | ||
f8f80361 ML |
1307 | list_add_tail(&dai_link->list, &card->dai_link_list); |
1308 | card->num_dai_links++; | |
1309 | ||
1310 | return 0; | |
1311 | } | |
1312 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_link); | |
1313 | ||
1314 | /** | |
1315 | * snd_soc_remove_dai_link - Remove a DAI link from the list | |
1316 | * @card: The ASoC card that owns the link | |
1317 | * @dai_link: The DAI link to remove | |
1318 | * | |
1319 | * This function removes a DAI link from the ASoC card's link list. | |
1320 | * | |
1321 | * For DAI links previously added by topology, topology should | |
1322 | * remove them by using the dobj embedded in the link. | |
1323 | */ | |
1324 | void snd_soc_remove_dai_link(struct snd_soc_card *card, | |
1325 | struct snd_soc_dai_link *dai_link) | |
1326 | { | |
1327 | struct snd_soc_dai_link *link, *_link; | |
1328 | ||
1329 | if (dai_link->dobj.type | |
1330 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1331 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1332 | dai_link->dobj.type); | |
1333 | return; | |
1334 | } | |
1335 | ||
1336 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1337 | /* Notify the machine driver for extra destruction |
1338 | * on the link created by topology. | |
1339 | */ | |
1340 | if (dai_link->dobj.type && card->remove_dai_link) | |
1341 | card->remove_dai_link(card, dai_link); | |
1342 | ||
f8f80361 ML |
1343 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1344 | if (link == dai_link) { | |
1345 | list_del(&link->list); | |
1346 | card->num_dai_links--; | |
1347 | return; | |
1348 | } | |
1349 | } | |
1350 | } | |
1351 | EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); | |
1352 | ||
ead9b919 | 1353 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1354 | struct snd_soc_component *component) |
ead9b919 JN |
1355 | { |
1356 | int i; | |
1357 | ||
ff819b83 | 1358 | if (card->codec_conf == NULL) |
ead9b919 JN |
1359 | return; |
1360 | ||
ff819b83 DP |
1361 | for (i = 0; i < card->num_configs; i++) { |
1362 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1363 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1364 | continue; |
94f99c87 | 1365 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1366 | continue; |
94f99c87 | 1367 | component->name_prefix = map->name_prefix; |
3ca041ed | 1368 | break; |
ead9b919 JN |
1369 | } |
1370 | } | |
1371 | ||
f1d45cc3 LPC |
1372 | static int soc_probe_component(struct snd_soc_card *card, |
1373 | struct snd_soc_component *component) | |
589c3563 | 1374 | { |
f1d45cc3 | 1375 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1376 | struct snd_soc_dai *dai; |
f1d45cc3 | 1377 | int ret; |
589c3563 | 1378 | |
1b7c1231 | 1379 | if (!strcmp(component->name, "snd-soc-dummy")) |
70090bbb | 1380 | return 0; |
589c3563 | 1381 | |
abd31b32 | 1382 | if (component->card) { |
1b7c1231 LPC |
1383 | if (component->card != card) { |
1384 | dev_err(component->dev, | |
1385 | "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", | |
1386 | card->name, component->card->name); | |
1387 | return -ENODEV; | |
1388 | } | |
1389 | return 0; | |
1390 | } | |
589c3563 | 1391 | |
f1d45cc3 | 1392 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1393 | return -ENODEV; |
1394 | ||
f1d45cc3 LPC |
1395 | component->card = card; |
1396 | dapm->card = card; | |
1397 | soc_set_name_prefix(card, component); | |
589c3563 | 1398 | |
f1d45cc3 | 1399 | soc_init_component_debugfs(component); |
d5d1e0be | 1400 | |
f1d45cc3 LPC |
1401 | if (component->dapm_widgets) { |
1402 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1403 | component->num_dapm_widgets); | |
b318ad50 NP |
1404 | |
1405 | if (ret != 0) { | |
f1d45cc3 | 1406 | dev_err(component->dev, |
b318ad50 NP |
1407 | "Failed to create new controls %d\n", ret); |
1408 | goto err_probe; | |
1409 | } | |
1410 | } | |
77530150 | 1411 | |
0634814f LPC |
1412 | list_for_each_entry(dai, &component->dai_list, list) { |
1413 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1414 | if (ret != 0) { |
0634814f | 1415 | dev_err(component->dev, |
261edc70 NP |
1416 | "Failed to create DAI widgets %d\n", ret); |
1417 | goto err_probe; | |
1418 | } | |
1419 | } | |
888df395 | 1420 | |
f1d45cc3 LPC |
1421 | if (component->probe) { |
1422 | ret = component->probe(component); | |
589c3563 | 1423 | if (ret < 0) { |
f1d45cc3 LPC |
1424 | dev_err(component->dev, |
1425 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1426 | goto err_probe; |
589c3563 | 1427 | } |
cb2cf612 | 1428 | |
f1d45cc3 LPC |
1429 | WARN(dapm->idle_bias_off && |
1430 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1431 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1432 | component->name); | |
be09ad90 LG |
1433 | } |
1434 | ||
f2ed6b07 ML |
1435 | /* machine specific init */ |
1436 | if (component->init) { | |
1437 | ret = component->init(component); | |
1438 | if (ret < 0) { | |
1439 | dev_err(component->dev, | |
1440 | "Failed to do machine specific init %d\n", ret); | |
1441 | goto err_probe; | |
1442 | } | |
1443 | } | |
1444 | ||
f1d45cc3 LPC |
1445 | if (component->controls) |
1446 | snd_soc_add_component_controls(component, component->controls, | |
1447 | component->num_controls); | |
1448 | if (component->dapm_routes) | |
1449 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1450 | component->num_dapm_routes); | |
3fec6b6d | 1451 | |
f1d45cc3 | 1452 | list_add(&dapm->list, &card->dapm_list); |
d9fc4063 | 1453 | list_add(&component->card_list, &card->component_dev_list); |
956245e9 LG |
1454 | |
1455 | return 0; | |
1456 | ||
1457 | err_probe: | |
f1d45cc3 | 1458 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1459 | component->card = NULL; |
f1d45cc3 | 1460 | module_put(component->dev->driver->owner); |
956245e9 LG |
1461 | |
1462 | return ret; | |
1463 | } | |
1464 | ||
36ae1a96 MB |
1465 | static void rtd_release(struct device *dev) |
1466 | { | |
1467 | kfree(dev); | |
1468 | } | |
f0fba2ad | 1469 | |
5f3484ac LPC |
1470 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1471 | const char *name) | |
503ae5e0 | 1472 | { |
589c3563 JN |
1473 | int ret = 0; |
1474 | ||
589c3563 | 1475 | /* register the rtd device */ |
36ae1a96 MB |
1476 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1477 | if (!rtd->dev) | |
1478 | return -ENOMEM; | |
1479 | device_initialize(rtd->dev); | |
5f3484ac | 1480 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1481 | rtd->dev->release = rtd_release; |
d29697dc | 1482 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1483 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1484 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1485 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1486 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1487 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1488 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1489 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1490 | ret = device_add(rtd->dev); |
589c3563 | 1491 | if (ret < 0) { |
865df9cb CL |
1492 | /* calling put_device() here to free the rtd->dev */ |
1493 | put_device(rtd->dev); | |
5f3484ac | 1494 | dev_err(rtd->card->dev, |
f110bfc7 | 1495 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1496 | return ret; |
1497 | } | |
1498 | rtd->dev_registered = 1; | |
589c3563 JN |
1499 | return 0; |
1500 | } | |
1501 | ||
1a497983 ML |
1502 | static int soc_probe_link_components(struct snd_soc_card *card, |
1503 | struct snd_soc_pcm_runtime *rtd, | |
62ae68fa SW |
1504 | int order) |
1505 | { | |
62ae68fa | 1506 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1507 | struct snd_soc_component *component; |
88bd870f | 1508 | int i, ret; |
62ae68fa SW |
1509 | |
1510 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1511 | component = rtd->cpu_dai->component; |
70090bbb | 1512 | if (component->driver->probe_order == order) { |
61aca564 | 1513 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1514 | if (ret < 0) |
1515 | return ret; | |
1516 | } | |
1517 | ||
88bd870f BC |
1518 | /* probe the CODEC-side components */ |
1519 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1520 | component = rtd->codec_dais[i]->component; |
70090bbb | 1521 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1522 | ret = soc_probe_component(card, component); |
88bd870f BC |
1523 | if (ret < 0) |
1524 | return ret; | |
1525 | } | |
62ae68fa SW |
1526 | } |
1527 | ||
1528 | /* probe the platform */ | |
70090bbb | 1529 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1530 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1531 | if (ret < 0) |
1532 | return ret; | |
1533 | } | |
1534 | ||
1535 | return 0; | |
1536 | } | |
1537 | ||
8e2be562 | 1538 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1539 | { |
1540 | int ret; | |
1541 | ||
8e2be562 LPC |
1542 | if (!dai->probed && dai->driver->probe_order == order) { |
1543 | if (dai->driver->probe) { | |
1544 | ret = dai->driver->probe(dai); | |
b0aa88af | 1545 | if (ret < 0) { |
8e2be562 LPC |
1546 | dev_err(dai->dev, |
1547 | "ASoC: failed to probe DAI %s: %d\n", | |
1548 | dai->name, ret); | |
b0aa88af MLC |
1549 | return ret; |
1550 | } | |
1551 | } | |
1552 | ||
8e2be562 | 1553 | dai->probed = 1; |
b0aa88af MLC |
1554 | } |
1555 | ||
1556 | return 0; | |
1557 | } | |
1558 | ||
2436a723 MLC |
1559 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1560 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1561 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1562 | { |
3f901a02 BC |
1563 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1564 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
3de7c420 | 1565 | struct snd_soc_dapm_widget *sink, *source; |
2436a723 MLC |
1566 | int ret; |
1567 | ||
88bd870f BC |
1568 | if (rtd->num_codecs > 1) |
1569 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1570 | ||
2436a723 | 1571 | /* link the DAI widgets */ |
3de7c420 VK |
1572 | sink = codec_dai->playback_widget; |
1573 | source = cpu_dai->capture_widget; | |
1574 | if (sink && source) { | |
2436a723 | 1575 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1576 | dai_link->num_params, |
1577 | source, sink); | |
2436a723 MLC |
1578 | if (ret != 0) { |
1579 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1580 | sink->name, source->name, ret); |
2436a723 MLC |
1581 | return ret; |
1582 | } | |
1583 | } | |
1584 | ||
3de7c420 VK |
1585 | sink = cpu_dai->playback_widget; |
1586 | source = codec_dai->capture_widget; | |
1587 | if (sink && source) { | |
2436a723 | 1588 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1589 | dai_link->num_params, |
1590 | source, sink); | |
2436a723 MLC |
1591 | if (ret != 0) { |
1592 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1593 | sink->name, source->name, ret); |
2436a723 MLC |
1594 | return ret; |
1595 | } | |
1596 | } | |
1597 | ||
1598 | return 0; | |
1599 | } | |
1600 | ||
1a497983 ML |
1601 | static int soc_probe_link_dais(struct snd_soc_card *card, |
1602 | struct snd_soc_pcm_runtime *rtd, int order) | |
f0fba2ad | 1603 | { |
1a497983 | 1604 | struct snd_soc_dai_link *dai_link = rtd->dai_link; |
c74184ed | 1605 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1606 | int i, ret; |
f0fba2ad | 1607 | |
f110bfc7 | 1608 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
1a497983 | 1609 | card->name, rtd->num, order); |
f0fba2ad | 1610 | |
f0fba2ad LG |
1611 | /* set default power off timeout */ |
1612 | rtd->pmdown_time = pmdown_time; | |
1613 | ||
8e2be562 LPC |
1614 | ret = soc_probe_dai(cpu_dai, order); |
1615 | if (ret) | |
1616 | return ret; | |
db2a4165 | 1617 | |
f0fba2ad | 1618 | /* probe the CODEC DAI */ |
88bd870f | 1619 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1620 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1621 | if (ret) |
1622 | return ret; | |
1623 | } | |
fe3e78e0 | 1624 | |
0168bf0d LG |
1625 | /* complete DAI probe during last probe */ |
1626 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1627 | return 0; | |
1628 | ||
5f3484ac LPC |
1629 | /* do machine specific initialization */ |
1630 | if (dai_link->init) { | |
1631 | ret = dai_link->init(rtd); | |
1632 | if (ret < 0) { | |
1633 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1634 | dai_link->name, ret); | |
1635 | return ret; | |
1636 | } | |
1637 | } | |
1638 | ||
a5053a8e KM |
1639 | if (dai_link->dai_fmt) |
1640 | snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1641 | ||
5f3484ac | 1642 | ret = soc_post_component_init(rtd, dai_link->name); |
589c3563 | 1643 | if (ret) |
f0fba2ad | 1644 | return ret; |
fe3e78e0 | 1645 | |
5f3484ac LPC |
1646 | #ifdef CONFIG_DEBUG_FS |
1647 | /* add DPCM sysfs entries */ | |
2e55b90a LPC |
1648 | if (dai_link->dynamic) |
1649 | soc_dpcm_debugfs_add(rtd); | |
5f3484ac LPC |
1650 | #endif |
1651 | ||
6f0c4226 | 1652 | if (cpu_dai->driver->compress_new) { |
1245b700 | 1653 | /*create compress_device"*/ |
1a497983 | 1654 | ret = cpu_dai->driver->compress_new(rtd, rtd->num); |
c74184ed | 1655 | if (ret < 0) { |
f110bfc7 | 1656 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1657 | dai_link->stream_name); |
c74184ed MB |
1658 | return ret; |
1659 | } | |
1660 | } else { | |
1245b700 NK |
1661 | |
1662 | if (!dai_link->params) { | |
1663 | /* create the pcm */ | |
1a497983 | 1664 | ret = soc_new_pcm(rtd, rtd->num); |
1245b700 | 1665 | if (ret < 0) { |
f110bfc7 | 1666 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1667 | dai_link->stream_name, ret); |
c74184ed MB |
1668 | return ret; |
1669 | } | |
1245b700 | 1670 | } else { |
9d58a077 RF |
1671 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1672 | codec2codec_close_delayed_work); | |
1673 | ||
1245b700 | 1674 | /* link the DAI widgets */ |
3f901a02 | 1675 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1676 | if (ret) |
1677 | return ret; | |
c74184ed | 1678 | } |
f0fba2ad LG |
1679 | } |
1680 | ||
f0fba2ad LG |
1681 | return 0; |
1682 | } | |
1683 | ||
44c69bb1 | 1684 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed SR |
1685 | { |
1686 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
f2ed6b07 ML |
1687 | struct snd_soc_component *component; |
1688 | const char *name; | |
1689 | struct device_node *codec_of_node; | |
1690 | ||
1691 | if (aux_dev->codec_of_node || aux_dev->codec_name) { | |
1692 | /* codecs, usually analog devices */ | |
1693 | name = aux_dev->codec_name; | |
1694 | codec_of_node = aux_dev->codec_of_node; | |
1695 | component = soc_find_component(codec_of_node, name); | |
1696 | if (!component) { | |
1697 | if (codec_of_node) | |
1698 | name = of_node_full_name(codec_of_node); | |
1699 | goto err_defer; | |
1700 | } | |
1701 | } else if (aux_dev->name) { | |
1702 | /* generic components */ | |
1703 | name = aux_dev->name; | |
1704 | component = soc_find_component(NULL, name); | |
1705 | if (!component) | |
1706 | goto err_defer; | |
1707 | } else { | |
1708 | dev_err(card->dev, "ASoC: Invalid auxiliary device\n"); | |
1709 | return -EINVAL; | |
3ca041ed | 1710 | } |
fb099cb7 | 1711 | |
f2ed6b07 ML |
1712 | component->init = aux_dev->init; |
1713 | list_add(&component->list_aux, &card->aux_comp_list); | |
44c69bb1 | 1714 | return 0; |
f2ed6b07 ML |
1715 | |
1716 | err_defer: | |
1717 | dev_err(card->dev, "ASoC: %s not registered\n", name); | |
1718 | return -EPROBE_DEFER; | |
b19e6e7b MB |
1719 | } |
1720 | ||
f2ed6b07 | 1721 | static int soc_probe_aux_devices(struct snd_soc_card *card) |
2eea392d | 1722 | { |
f2ed6b07 ML |
1723 | struct snd_soc_component *comp; |
1724 | int order; | |
44c69bb1 | 1725 | int ret; |
3ca041ed | 1726 | |
f2ed6b07 ML |
1727 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1728 | order++) { | |
1729 | list_for_each_entry(comp, &card->aux_comp_list, list_aux) { | |
1730 | if (comp->driver->probe_order == order) { | |
1731 | ret = soc_probe_component(card, comp); | |
1732 | if (ret < 0) { | |
1733 | dev_err(card->dev, | |
1734 | "ASoC: failed to probe aux component %s %d\n", | |
1735 | comp->name, ret); | |
1736 | return ret; | |
1737 | } | |
1738 | } | |
5f3484ac LPC |
1739 | } |
1740 | } | |
2eea392d | 1741 | |
f2ed6b07 | 1742 | return 0; |
2eea392d JN |
1743 | } |
1744 | ||
f2ed6b07 | 1745 | static void soc_remove_aux_devices(struct snd_soc_card *card) |
2eea392d | 1746 | { |
f2ed6b07 ML |
1747 | struct snd_soc_component *comp, *_comp; |
1748 | int order; | |
2eea392d | 1749 | |
f2ed6b07 ML |
1750 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1751 | order++) { | |
1752 | list_for_each_entry_safe(comp, _comp, | |
1753 | &card->aux_comp_list, list_aux) { | |
1754 | if (comp->driver->remove_order == order) { | |
1755 | soc_remove_component(comp); | |
1756 | /* remove it from the card's aux_comp_list */ | |
1757 | list_del(&comp->list_aux); | |
1758 | } | |
1759 | } | |
2eea392d | 1760 | } |
2eea392d JN |
1761 | } |
1762 | ||
f90fb3f7 | 1763 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1764 | { |
1765 | int ret; | |
1766 | ||
1767 | if (codec->cache_init) | |
1768 | return 0; | |
1769 | ||
fdf0f54d DP |
1770 | ret = snd_soc_cache_init(codec); |
1771 | if (ret < 0) { | |
10e8aa9a MM |
1772 | dev_err(codec->dev, |
1773 | "ASoC: Failed to set cache compression type: %d\n", | |
1774 | ret); | |
fdf0f54d DP |
1775 | return ret; |
1776 | } | |
1777 | codec->cache_init = 1; | |
1778 | return 0; | |
1779 | } | |
1780 | ||
ce64c8b9 LPC |
1781 | /** |
1782 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1783 | * @rtd: The runtime for which the DAI link format should be changed | |
1784 | * @dai_fmt: The new DAI link format | |
1785 | * | |
1786 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1787 | * link for the specified runtime. | |
1788 | * | |
1789 | * Note: For setups with a static format set the dai_fmt field in the | |
1790 | * corresponding snd_dai_link struct instead of using this function. | |
1791 | * | |
1792 | * Returns 0 on success, otherwise a negative error code. | |
1793 | */ | |
1794 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1795 | unsigned int dai_fmt) | |
1796 | { | |
1797 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1798 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1799 | unsigned int i; | |
1800 | int ret; | |
1801 | ||
1802 | for (i = 0; i < rtd->num_codecs; i++) { | |
1803 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1804 | ||
1805 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1806 | if (ret != 0 && ret != -ENOTSUPP) { | |
1807 | dev_warn(codec_dai->dev, | |
1808 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1809 | return ret; | |
1810 | } | |
1811 | } | |
1812 | ||
1813 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1814 | if (cpu_dai->codec) { | |
1815 | unsigned int inv_dai_fmt; | |
1816 | ||
1817 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1818 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1819 | case SND_SOC_DAIFMT_CBM_CFM: | |
1820 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1821 | break; | |
1822 | case SND_SOC_DAIFMT_CBM_CFS: | |
1823 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1824 | break; | |
1825 | case SND_SOC_DAIFMT_CBS_CFM: | |
1826 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1827 | break; | |
1828 | case SND_SOC_DAIFMT_CBS_CFS: | |
1829 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1830 | break; | |
1831 | } | |
1832 | ||
1833 | dai_fmt = inv_dai_fmt; | |
1834 | } | |
1835 | ||
1836 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1837 | if (ret != 0 && ret != -ENOTSUPP) { | |
1838 | dev_warn(cpu_dai->dev, | |
1839 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1840 | return ret; | |
1841 | } | |
1842 | ||
1843 | return 0; | |
1844 | } | |
ddaca25a | 1845 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1846 | |
b19e6e7b | 1847 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1848 | { |
fdf0f54d | 1849 | struct snd_soc_codec *codec; |
1a497983 | 1850 | struct snd_soc_pcm_runtime *rtd; |
61b0088b | 1851 | struct snd_soc_dai_link *dai_link; |
ce64c8b9 | 1852 | int ret, i, order; |
fe3e78e0 | 1853 | |
34e81ab4 | 1854 | mutex_lock(&client_mutex); |
01b9d99a | 1855 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1856 | |
f0fba2ad | 1857 | /* bind DAIs */ |
b19e6e7b | 1858 | for (i = 0; i < card->num_links; i++) { |
6f2f1ff0 | 1859 | ret = soc_bind_dai_link(card, &card->dai_link[i]); |
b19e6e7b MB |
1860 | if (ret != 0) |
1861 | goto base_error; | |
1862 | } | |
fe3e78e0 | 1863 | |
44c69bb1 | 1864 | /* bind aux_devs too */ |
b19e6e7b | 1865 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 1866 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
1867 | if (ret != 0) |
1868 | goto base_error; | |
f0fba2ad | 1869 | } |
435c5e25 | 1870 | |
f8f80361 ML |
1871 | /* add predefined DAI links to the list */ |
1872 | for (i = 0; i < card->num_links; i++) | |
1873 | snd_soc_add_dai_link(card, card->dai_link+i); | |
1874 | ||
fdf0f54d DP |
1875 | /* initialize the register cache for each available codec */ |
1876 | list_for_each_entry(codec, &codec_list, list) { | |
1877 | if (codec->cache_init) | |
1878 | continue; | |
f90fb3f7 | 1879 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
1880 | if (ret < 0) |
1881 | goto base_error; | |
fdf0f54d DP |
1882 | } |
1883 | ||
f0fba2ad | 1884 | /* card bind complete so register a sound card */ |
102b5a8d | 1885 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1886 | card->owner, 0, &card->snd_card); |
1887 | if (ret < 0) { | |
10e8aa9a MM |
1888 | dev_err(card->dev, |
1889 | "ASoC: can't create sound card for card %s: %d\n", | |
1890 | card->name, ret); | |
b19e6e7b | 1891 | goto base_error; |
f0fba2ad | 1892 | } |
f0fba2ad | 1893 | |
0757d834 LPC |
1894 | soc_init_card_debugfs(card); |
1895 | ||
e37a4970 MB |
1896 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1897 | card->dapm.dev = card->dev; | |
1898 | card->dapm.card = card; | |
1899 | list_add(&card->dapm.list, &card->dapm_list); | |
1900 | ||
d5d1e0be LPC |
1901 | #ifdef CONFIG_DEBUG_FS |
1902 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1903 | #endif | |
1904 | ||
88ee1c61 | 1905 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1906 | /* deferred resume work */ |
1907 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1908 | #endif | |
db2a4165 | 1909 | |
9a841ebb MB |
1910 | if (card->dapm_widgets) |
1911 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1912 | card->num_dapm_widgets); | |
1913 | ||
f23e860e NC |
1914 | if (card->of_dapm_widgets) |
1915 | snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, | |
1916 | card->num_of_dapm_widgets); | |
1917 | ||
f0fba2ad LG |
1918 | /* initialise the sound card only once */ |
1919 | if (card->probe) { | |
e7361ec4 | 1920 | ret = card->probe(card); |
f0fba2ad LG |
1921 | if (ret < 0) |
1922 | goto card_probe_error; | |
1923 | } | |
fe3e78e0 | 1924 | |
62ae68fa | 1925 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1926 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1927 | order++) { | |
1a497983 ML |
1928 | list_for_each_entry(rtd, &card->rtd_list, list) { |
1929 | ret = soc_probe_link_components(card, rtd, order); | |
0168bf0d | 1930 | if (ret < 0) { |
f110bfc7 LG |
1931 | dev_err(card->dev, |
1932 | "ASoC: failed to instantiate card %d\n", | |
1933 | ret); | |
62ae68fa SW |
1934 | goto probe_dai_err; |
1935 | } | |
1936 | } | |
1937 | } | |
1938 | ||
f2ed6b07 ML |
1939 | /* probe auxiliary components */ |
1940 | ret = soc_probe_aux_devices(card); | |
1941 | if (ret < 0) | |
1942 | goto probe_dai_err; | |
1943 | ||
61b0088b ML |
1944 | /* Find new DAI links added during probing components and bind them. |
1945 | * Components with topology may bring new DAIs and DAI links. | |
1946 | */ | |
1947 | list_for_each_entry(dai_link, &card->dai_link_list, list) { | |
1948 | if (soc_is_dai_link_bound(card, dai_link)) | |
1949 | continue; | |
1950 | ||
1951 | ret = soc_init_dai_link(card, dai_link); | |
1952 | if (ret) | |
1953 | goto probe_dai_err; | |
1954 | ret = soc_bind_dai_link(card, dai_link); | |
1955 | if (ret) | |
1956 | goto probe_dai_err; | |
1957 | } | |
1958 | ||
62ae68fa SW |
1959 | /* probe all DAI links on this card */ |
1960 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1961 | order++) { | |
1a497983 ML |
1962 | list_for_each_entry(rtd, &card->rtd_list, list) { |
1963 | ret = soc_probe_link_dais(card, rtd, order); | |
62ae68fa | 1964 | if (ret < 0) { |
f110bfc7 LG |
1965 | dev_err(card->dev, |
1966 | "ASoC: failed to instantiate card %d\n", | |
1967 | ret); | |
0168bf0d LG |
1968 | goto probe_dai_err; |
1969 | } | |
f0fba2ad LG |
1970 | } |
1971 | } | |
db2a4165 | 1972 | |
888df395 | 1973 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1974 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1975 | |
b7af1daf | 1976 | if (card->controls) |
022658be | 1977 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1978 | |
b8ad29de MB |
1979 | if (card->dapm_routes) |
1980 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1981 | card->num_dapm_routes); | |
1982 | ||
f23e860e NC |
1983 | if (card->of_dapm_routes) |
1984 | snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, | |
1985 | card->num_of_dapm_routes); | |
75d9ac46 | 1986 | |
f0fba2ad | 1987 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1988 | "%s", card->name); |
22de71ba LG |
1989 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1990 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1991 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1992 | "%s", card->driver_name ? card->driver_name : card->name); | |
1993 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1994 | switch (card->snd_card->driver[i]) { | |
1995 | case '_': | |
1996 | case '-': | |
1997 | case '\0': | |
1998 | break; | |
1999 | default: | |
2000 | if (!isalnum(card->snd_card->driver[i])) | |
2001 | card->snd_card->driver[i] = '_'; | |
2002 | break; | |
2003 | } | |
2004 | } | |
f0fba2ad | 2005 | |
28e9ad92 MB |
2006 | if (card->late_probe) { |
2007 | ret = card->late_probe(card); | |
2008 | if (ret < 0) { | |
f110bfc7 | 2009 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
2010 | card->name, ret); |
2011 | goto probe_aux_dev_err; | |
2012 | } | |
2013 | } | |
2014 | ||
824ef826 | 2015 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 2016 | |
f0fba2ad LG |
2017 | ret = snd_card_register(card->snd_card); |
2018 | if (ret < 0) { | |
f110bfc7 LG |
2019 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
2020 | ret); | |
6b3ed785 | 2021 | goto probe_aux_dev_err; |
db2a4165 FM |
2022 | } |
2023 | ||
f0fba2ad | 2024 | card->instantiated = 1; |
4f4c0072 | 2025 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 2026 | mutex_unlock(&card->mutex); |
34e81ab4 | 2027 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
2028 | |
2029 | return 0; | |
f0fba2ad | 2030 | |
2eea392d | 2031 | probe_aux_dev_err: |
f2ed6b07 | 2032 | soc_remove_aux_devices(card); |
2eea392d | 2033 | |
f0fba2ad | 2034 | probe_dai_err: |
0671fd8e | 2035 | soc_remove_dai_links(card); |
f0fba2ad LG |
2036 | |
2037 | card_probe_error: | |
87506549 | 2038 | if (card->remove) |
e7361ec4 | 2039 | card->remove(card); |
f0fba2ad | 2040 | |
2210438b | 2041 | snd_soc_dapm_free(&card->dapm); |
0757d834 | 2042 | soc_cleanup_card_debugfs(card); |
f0fba2ad LG |
2043 | snd_card_free(card->snd_card); |
2044 | ||
b19e6e7b | 2045 | base_error: |
1a497983 | 2046 | soc_remove_pcm_runtimes(card); |
f0fba2ad | 2047 | mutex_unlock(&card->mutex); |
34e81ab4 | 2048 | mutex_unlock(&client_mutex); |
db2a4165 | 2049 | |
b19e6e7b | 2050 | return ret; |
435c5e25 MB |
2051 | } |
2052 | ||
2053 | /* probes a new socdev */ | |
2054 | static int soc_probe(struct platform_device *pdev) | |
2055 | { | |
f0fba2ad | 2056 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 2057 | |
70a7ca34 VK |
2058 | /* |
2059 | * no card, so machine driver should be registering card | |
2060 | * we should not be here in that case so ret error | |
2061 | */ | |
2062 | if (!card) | |
2063 | return -EINVAL; | |
2064 | ||
fe4085e8 | 2065 | dev_warn(&pdev->dev, |
f110bfc7 | 2066 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
2067 | card->name); |
2068 | ||
435c5e25 MB |
2069 | /* Bodge while we unpick instantiation */ |
2070 | card->dev = &pdev->dev; | |
f0fba2ad | 2071 | |
28d528c8 | 2072 | return snd_soc_register_card(card); |
db2a4165 FM |
2073 | } |
2074 | ||
b0e26485 | 2075 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 | 2076 | { |
1a497983 | 2077 | struct snd_soc_pcm_runtime *rtd; |
db2a4165 | 2078 | |
b0e26485 | 2079 | /* make sure any delayed work runs */ |
1a497983 | 2080 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2081 | flush_delayed_work(&rtd->delayed_work); |
914dc182 | 2082 | |
b0e26485 | 2083 | /* remove and free each DAI */ |
0671fd8e | 2084 | soc_remove_dai_links(card); |
1a497983 | 2085 | soc_remove_pcm_runtimes(card); |
2eea392d | 2086 | |
f2ed6b07 ML |
2087 | /* remove auxiliary devices */ |
2088 | soc_remove_aux_devices(card); | |
2089 | ||
d1e81428 | 2090 | snd_soc_dapm_free(&card->dapm); |
b0e26485 | 2091 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2092 | |
b0e26485 VK |
2093 | /* remove the card */ |
2094 | if (card->remove) | |
e7361ec4 | 2095 | card->remove(card); |
a6052154 | 2096 | |
b0e26485 VK |
2097 | snd_card_free(card->snd_card); |
2098 | return 0; | |
2099 | ||
2100 | } | |
2101 | ||
2102 | /* removes a socdev */ | |
2103 | static int soc_remove(struct platform_device *pdev) | |
2104 | { | |
2105 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2106 | |
c5af3a2e | 2107 | snd_soc_unregister_card(card); |
db2a4165 FM |
2108 | return 0; |
2109 | } | |
2110 | ||
6f8ab4ac | 2111 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2112 | { |
6f8ab4ac | 2113 | struct snd_soc_card *card = dev_get_drvdata(dev); |
1a497983 | 2114 | struct snd_soc_pcm_runtime *rtd; |
51737470 MB |
2115 | |
2116 | if (!card->instantiated) | |
416356fc | 2117 | return 0; |
51737470 MB |
2118 | |
2119 | /* Flush out pmdown_time work - we actually do want to run it | |
2120 | * now, we're shutting down so no imminent restart. */ | |
1a497983 | 2121 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2122 | flush_delayed_work(&rtd->delayed_work); |
51737470 | 2123 | |
f0fba2ad | 2124 | snd_soc_dapm_shutdown(card); |
416356fc | 2125 | |
988e8cc4 | 2126 | /* deactivate pins to sleep state */ |
1a497983 | 2127 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f | 2128 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1a497983 | 2129 | int i; |
88bd870f | 2130 | |
988e8cc4 | 2131 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
1a497983 ML |
2132 | for (i = 0; i < rtd->num_codecs; i++) { |
2133 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
88bd870f BC |
2134 | pinctrl_pm_select_sleep_state(codec_dai->dev); |
2135 | } | |
988e8cc4 NC |
2136 | } |
2137 | ||
416356fc | 2138 | return 0; |
51737470 | 2139 | } |
6f8ab4ac | 2140 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2141 | |
6f8ab4ac | 2142 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
2143 | .suspend = snd_soc_suspend, |
2144 | .resume = snd_soc_resume, | |
2145 | .freeze = snd_soc_suspend, | |
2146 | .thaw = snd_soc_resume, | |
6f8ab4ac | 2147 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 2148 | .restore = snd_soc_resume, |
416356fc | 2149 | }; |
deb2607e | 2150 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2151 | |
db2a4165 FM |
2152 | /* ASoC platform driver */ |
2153 | static struct platform_driver soc_driver = { | |
2154 | .driver = { | |
2155 | .name = "soc-audio", | |
6f8ab4ac | 2156 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2157 | }, |
2158 | .probe = soc_probe, | |
2159 | .remove = soc_remove, | |
db2a4165 FM |
2160 | }; |
2161 | ||
db2a4165 FM |
2162 | /** |
2163 | * snd_soc_cnew - create new control | |
2164 | * @_template: control template | |
2165 | * @data: control private data | |
ac11a2b3 | 2166 | * @long_name: control long name |
efb7ac3f | 2167 | * @prefix: control name prefix |
db2a4165 FM |
2168 | * |
2169 | * Create a new mixer control from a template control. | |
2170 | * | |
2171 | * Returns 0 for success, else error. | |
2172 | */ | |
2173 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2174 | void *data, const char *long_name, |
efb7ac3f | 2175 | const char *prefix) |
db2a4165 FM |
2176 | { |
2177 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2178 | struct snd_kcontrol *kcontrol; |
2179 | char *name = NULL; | |
db2a4165 FM |
2180 | |
2181 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2182 | template.index = 0; |
2183 | ||
efb7ac3f MB |
2184 | if (!long_name) |
2185 | long_name = template.name; | |
2186 | ||
2187 | if (prefix) { | |
2b581074 | 2188 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
2189 | if (!name) |
2190 | return NULL; | |
2191 | ||
efb7ac3f MB |
2192 | template.name = name; |
2193 | } else { | |
2194 | template.name = long_name; | |
2195 | } | |
2196 | ||
2197 | kcontrol = snd_ctl_new1(&template, data); | |
2198 | ||
2199 | kfree(name); | |
2200 | ||
2201 | return kcontrol; | |
db2a4165 FM |
2202 | } |
2203 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2204 | ||
022658be LG |
2205 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2206 | const struct snd_kcontrol_new *controls, int num_controls, | |
2207 | const char *prefix, void *data) | |
2208 | { | |
2209 | int err, i; | |
2210 | ||
2211 | for (i = 0; i < num_controls; i++) { | |
2212 | const struct snd_kcontrol_new *control = &controls[i]; | |
2213 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2214 | control->name, prefix)); | |
2215 | if (err < 0) { | |
f110bfc7 LG |
2216 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
2217 | control->name, err); | |
022658be LG |
2218 | return err; |
2219 | } | |
2220 | } | |
2221 | ||
2222 | return 0; | |
2223 | } | |
2224 | ||
4fefd698 DP |
2225 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
2226 | const char *name) | |
2227 | { | |
2228 | struct snd_card *card = soc_card->snd_card; | |
2229 | struct snd_kcontrol *kctl; | |
2230 | ||
2231 | if (unlikely(!name)) | |
2232 | return NULL; | |
2233 | ||
2234 | list_for_each_entry(kctl, &card->controls, list) | |
2235 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
2236 | return kctl; | |
2237 | return NULL; | |
2238 | } | |
2239 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
2240 | ||
0f2780ad LPC |
2241 | /** |
2242 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
2243 | * | |
2244 | * @component: Component to add controls to | |
2245 | * @controls: Array of controls to add | |
2246 | * @num_controls: Number of elements in the array | |
2247 | * | |
2248 | * Return: 0 for success, else error. | |
2249 | */ | |
2250 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
2251 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
2252 | { | |
2253 | struct snd_card *card = component->card->snd_card; | |
2254 | ||
2255 | return snd_soc_add_controls(card, component->dev, controls, | |
2256 | num_controls, component->name_prefix, component); | |
2257 | } | |
2258 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
2259 | ||
3e8e1952 | 2260 | /** |
022658be LG |
2261 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2262 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2263 | * duplicating this code. |
2264 | * | |
2265 | * @codec: codec to add controls to | |
2266 | * @controls: array of controls to add | |
2267 | * @num_controls: number of elements in the array | |
2268 | * | |
2269 | * Return 0 for success, else error. | |
2270 | */ | |
022658be | 2271 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 2272 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 2273 | { |
0f2780ad LPC |
2274 | return snd_soc_add_component_controls(&codec->component, controls, |
2275 | num_controls); | |
3e8e1952 | 2276 | } |
022658be | 2277 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2278 | |
a491a5c8 LG |
2279 | /** |
2280 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2281 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2282 | * |
2283 | * @platform: platform to add controls to | |
2284 | * @controls: array of controls to add | |
2285 | * @num_controls: number of elements in the array | |
2286 | * | |
2287 | * Return 0 for success, else error. | |
2288 | */ | |
2289 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 2290 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 2291 | { |
0f2780ad LPC |
2292 | return snd_soc_add_component_controls(&platform->component, controls, |
2293 | num_controls); | |
a491a5c8 LG |
2294 | } |
2295 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2296 | ||
022658be LG |
2297 | /** |
2298 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2299 | * Convenience function to add a list of controls. | |
2300 | * | |
2301 | * @soc_card: SoC card to add controls to | |
2302 | * @controls: array of controls to add | |
2303 | * @num_controls: number of elements in the array | |
2304 | * | |
2305 | * Return 0 for success, else error. | |
2306 | */ | |
2307 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2308 | const struct snd_kcontrol_new *controls, int num_controls) | |
2309 | { | |
2310 | struct snd_card *card = soc_card->snd_card; | |
2311 | ||
2312 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2313 | NULL, soc_card); | |
2314 | } | |
2315 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2316 | ||
2317 | /** | |
2318 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2319 | * Convienience function to add a list of controls. | |
2320 | * | |
2321 | * @dai: DAI to add controls to | |
2322 | * @controls: array of controls to add | |
2323 | * @num_controls: number of elements in the array | |
2324 | * | |
2325 | * Return 0 for success, else error. | |
2326 | */ | |
2327 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2328 | const struct snd_kcontrol_new *controls, int num_controls) | |
2329 | { | |
313665b9 | 2330 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2331 | |
2332 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2333 | NULL, dai); | |
2334 | } | |
2335 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2336 | ||
8c6529db LG |
2337 | /** |
2338 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2339 | * @dai: DAI | |
2340 | * @clk_id: DAI specific clock ID | |
2341 | * @freq: new clock frequency in Hz | |
2342 | * @dir: new clock direction - input/output. | |
2343 | * | |
2344 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2345 | */ | |
2346 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2347 | unsigned int freq, int dir) | |
2348 | { | |
f0fba2ad LG |
2349 | if (dai->driver && dai->driver->ops->set_sysclk) |
2350 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2351 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2352 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2353 | freq, dir); |
8c6529db | 2354 | else |
1104a9c8 | 2355 | return -ENOTSUPP; |
8c6529db LG |
2356 | } |
2357 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2358 | ||
ec4ee52a MB |
2359 | /** |
2360 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2361 | * @codec: CODEC | |
2362 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2363 | * @source: Source for the clock |
ec4ee52a MB |
2364 | * @freq: new clock frequency in Hz |
2365 | * @dir: new clock direction - input/output. | |
2366 | * | |
2367 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2368 | */ | |
2369 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2370 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2371 | { |
2372 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2373 | return codec->driver->set_sysclk(codec, clk_id, source, |
2374 | freq, dir); | |
ec4ee52a | 2375 | else |
1104a9c8 | 2376 | return -ENOTSUPP; |
ec4ee52a MB |
2377 | } |
2378 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2379 | ||
8c6529db LG |
2380 | /** |
2381 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2382 | * @dai: DAI | |
ac11a2b3 | 2383 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2384 | * @div: new clock divisor. |
2385 | * | |
2386 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2387 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2388 | * and frame clocks as low as possible to save system power. | |
2389 | */ | |
2390 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2391 | int div_id, int div) | |
2392 | { | |
f0fba2ad LG |
2393 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2394 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2395 | else |
2396 | return -EINVAL; | |
2397 | } | |
2398 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2399 | ||
2400 | /** | |
2401 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2402 | * @dai: DAI | |
2403 | * @pll_id: DAI specific PLL ID | |
85488037 | 2404 | * @source: DAI specific source for the PLL |
8c6529db LG |
2405 | * @freq_in: PLL input clock frequency in Hz |
2406 | * @freq_out: requested PLL output clock frequency in Hz | |
2407 | * | |
2408 | * Configures and enables PLL to generate output clock based on input clock. | |
2409 | */ | |
85488037 MB |
2410 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2411 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2412 | { |
f0fba2ad LG |
2413 | if (dai->driver && dai->driver->ops->set_pll) |
2414 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2415 | freq_in, freq_out); |
ec4ee52a MB |
2416 | else if (dai->codec && dai->codec->driver->set_pll) |
2417 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2418 | freq_in, freq_out); | |
8c6529db LG |
2419 | else |
2420 | return -EINVAL; | |
2421 | } | |
2422 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2423 | ||
ec4ee52a MB |
2424 | /* |
2425 | * snd_soc_codec_set_pll - configure codec PLL. | |
2426 | * @codec: CODEC | |
2427 | * @pll_id: DAI specific PLL ID | |
2428 | * @source: DAI specific source for the PLL | |
2429 | * @freq_in: PLL input clock frequency in Hz | |
2430 | * @freq_out: requested PLL output clock frequency in Hz | |
2431 | * | |
2432 | * Configures and enables PLL to generate output clock based on input clock. | |
2433 | */ | |
2434 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2435 | unsigned int freq_in, unsigned int freq_out) | |
2436 | { | |
2437 | if (codec->driver->set_pll) | |
2438 | return codec->driver->set_pll(codec, pll_id, source, | |
2439 | freq_in, freq_out); | |
2440 | else | |
2441 | return -EINVAL; | |
2442 | } | |
2443 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2444 | ||
e54cf76b LG |
2445 | /** |
2446 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2447 | * @dai: DAI | |
231b86b1 | 2448 | * @ratio: Ratio of BCLK to Sample rate. |
e54cf76b LG |
2449 | * |
2450 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2451 | */ | |
2452 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2453 | { | |
2454 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2455 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2456 | else | |
2457 | return -EINVAL; | |
2458 | } | |
2459 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2460 | ||
8c6529db LG |
2461 | /** |
2462 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2463 | * @dai: DAI | |
8c6529db LG |
2464 | * @fmt: SND_SOC_DAIFMT_ format value. |
2465 | * | |
2466 | * Configures the DAI hardware format and clocking. | |
2467 | */ | |
2468 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2469 | { | |
5e4ba569 | 2470 | if (dai->driver == NULL) |
8c6529db | 2471 | return -EINVAL; |
5e4ba569 SG |
2472 | if (dai->driver->ops->set_fmt == NULL) |
2473 | return -ENOTSUPP; | |
2474 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2475 | } |
2476 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2477 | ||
89c67857 | 2478 | /** |
e5c21514 | 2479 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2480 | * @slots: Number of slots in use. |
2481 | * @tx_mask: bitmask representing active TX slots. | |
2482 | * @rx_mask: bitmask representing active RX slots. | |
2483 | * | |
2484 | * Generates the TDM tx and rx slot default masks for DAI. | |
2485 | */ | |
e5c21514 | 2486 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2487 | unsigned int *tx_mask, |
2488 | unsigned int *rx_mask) | |
2489 | { | |
2490 | if (*tx_mask || *rx_mask) | |
2491 | return 0; | |
2492 | ||
2493 | if (!slots) | |
2494 | return -EINVAL; | |
2495 | ||
2496 | *tx_mask = (1 << slots) - 1; | |
2497 | *rx_mask = (1 << slots) - 1; | |
2498 | ||
2499 | return 0; | |
2500 | } | |
2501 | ||
8c6529db | 2502 | /** |
e46c9366 LPC |
2503 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2504 | * @dai: The DAI to configure | |
a5479e38 DR |
2505 | * @tx_mask: bitmask representing active TX slots. |
2506 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2507 | * @slots: Number of slots in use. |
a5479e38 | 2508 | * @slot_width: Width in bits for each slot. |
8c6529db | 2509 | * |
e46c9366 LPC |
2510 | * This function configures the specified DAI for TDM operation. @slot contains |
2511 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2512 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2513 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2514 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2515 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2516 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2517 | * maps to the first channel of the DAI, the second active slot to the second | |
2518 | * channel and so on. | |
2519 | * | |
2520 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2521 | * @rx_mask and @slot_width will be ignored. | |
2522 | * | |
2523 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2524 | */ |
2525 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2526 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2527 | { |
e5c21514 XL |
2528 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2529 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2530 | &tx_mask, &rx_mask); |
2531 | else | |
e5c21514 | 2532 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2533 | |
88bd870f BC |
2534 | dai->tx_mask = tx_mask; |
2535 | dai->rx_mask = rx_mask; | |
2536 | ||
f0fba2ad LG |
2537 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2538 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2539 | slots, slot_width); |
8c6529db | 2540 | else |
b2cbb6e1 | 2541 | return -ENOTSUPP; |
8c6529db LG |
2542 | } |
2543 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2544 | ||
472df3cb BS |
2545 | /** |
2546 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2547 | * @dai: DAI | |
2548 | * @tx_num: how many TX channels | |
2549 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2550 | * 0~num-1 uses | |
2551 | * @rx_num: how many RX channels | |
2552 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2553 | * 0~num-1 uses | |
2554 | * | |
2555 | * configure the relationship between channel number and TDM slot number. | |
2556 | */ | |
2557 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2558 | unsigned int tx_num, unsigned int *tx_slot, | |
2559 | unsigned int rx_num, unsigned int *rx_slot) | |
2560 | { | |
f0fba2ad LG |
2561 | if (dai->driver && dai->driver->ops->set_channel_map) |
2562 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2563 | rx_num, rx_slot); |
2564 | else | |
2565 | return -EINVAL; | |
2566 | } | |
2567 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2568 | ||
8c6529db LG |
2569 | /** |
2570 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2571 | * @dai: DAI | |
2572 | * @tristate: tristate enable | |
2573 | * | |
2574 | * Tristates the DAI so that others can use it. | |
2575 | */ | |
2576 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2577 | { | |
f0fba2ad LG |
2578 | if (dai->driver && dai->driver->ops->set_tristate) |
2579 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2580 | else |
2581 | return -EINVAL; | |
2582 | } | |
2583 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2584 | ||
2585 | /** | |
2586 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2587 | * @dai: DAI | |
2588 | * @mute: mute enable | |
da18396f | 2589 | * @direction: stream to mute |
8c6529db LG |
2590 | * |
2591 | * Mutes the DAI DAC. | |
2592 | */ | |
da18396f MB |
2593 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2594 | int direction) | |
8c6529db | 2595 | { |
da18396f MB |
2596 | if (!dai->driver) |
2597 | return -ENOTSUPP; | |
2598 | ||
2599 | if (dai->driver->ops->mute_stream) | |
2600 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2601 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2602 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2603 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2604 | else |
04570c62 | 2605 | return -ENOTSUPP; |
8c6529db LG |
2606 | } |
2607 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2608 | ||
c5af3a2e MB |
2609 | /** |
2610 | * snd_soc_register_card - Register a card with the ASoC core | |
2611 | * | |
ac11a2b3 | 2612 | * @card: Card to register |
c5af3a2e | 2613 | * |
c5af3a2e | 2614 | */ |
70a7ca34 | 2615 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2616 | { |
923c5e61 | 2617 | int i, ret; |
1a497983 | 2618 | struct snd_soc_pcm_runtime *rtd; |
f0fba2ad | 2619 | |
c5af3a2e MB |
2620 | if (!card->name || !card->dev) |
2621 | return -EINVAL; | |
2622 | ||
5a504963 SW |
2623 | for (i = 0; i < card->num_links; i++) { |
2624 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2625 | ||
923c5e61 | 2626 | ret = soc_init_dai_link(card, link); |
88bd870f | 2627 | if (ret) { |
923c5e61 | 2628 | dev_err(card->dev, "ASoC: failed to init link %s\n", |
10e8aa9a | 2629 | link->name); |
923c5e61 | 2630 | return ret; |
5a504963 SW |
2631 | } |
2632 | } | |
2633 | ||
ed77cc12 MB |
2634 | dev_set_drvdata(card->dev, card); |
2635 | ||
111c6419 SW |
2636 | snd_soc_initialize_card_lists(card); |
2637 | ||
f8f80361 ML |
2638 | INIT_LIST_HEAD(&card->dai_link_list); |
2639 | card->num_dai_links = 0; | |
2640 | ||
1a497983 ML |
2641 | INIT_LIST_HEAD(&card->rtd_list); |
2642 | card->num_rtd = 0; | |
2643 | ||
db432b41 | 2644 | INIT_LIST_HEAD(&card->dapm_dirty); |
8a978234 | 2645 | INIT_LIST_HEAD(&card->dobj_list); |
c5af3a2e | 2646 | card->instantiated = 0; |
f0fba2ad | 2647 | mutex_init(&card->mutex); |
a73fb2df | 2648 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2649 | |
b19e6e7b MB |
2650 | ret = snd_soc_instantiate_card(card); |
2651 | if (ret != 0) | |
4e2576bd | 2652 | return ret; |
c5af3a2e | 2653 | |
988e8cc4 | 2654 | /* deactivate pins to sleep state */ |
1a497983 | 2655 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
2656 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2657 | int j; | |
2658 | ||
2659 | for (j = 0; j < rtd->num_codecs; j++) { | |
2660 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2661 | if (!codec_dai->active) | |
2662 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2663 | } | |
2664 | ||
988e8cc4 NC |
2665 | if (!cpu_dai->active) |
2666 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2667 | } | |
2668 | ||
b19e6e7b | 2669 | return ret; |
c5af3a2e | 2670 | } |
70a7ca34 | 2671 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2672 | |
2673 | /** | |
2674 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2675 | * | |
ac11a2b3 | 2676 | * @card: Card to unregister |
c5af3a2e | 2677 | * |
c5af3a2e | 2678 | */ |
70a7ca34 | 2679 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2680 | { |
01e0df66 LPC |
2681 | if (card->instantiated) { |
2682 | card->instantiated = false; | |
1c325f77 | 2683 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2684 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2685 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2686 | } |
c5af3a2e MB |
2687 | |
2688 | return 0; | |
2689 | } | |
70a7ca34 | 2690 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2691 | |
f0fba2ad LG |
2692 | /* |
2693 | * Simplify DAI link configuration by removing ".-1" from device names | |
2694 | * and sanitizing names. | |
2695 | */ | |
0b9a214a | 2696 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2697 | { |
2698 | char *found, name[NAME_SIZE]; | |
2699 | int id1, id2; | |
2700 | ||
2701 | if (dev_name(dev) == NULL) | |
2702 | return NULL; | |
2703 | ||
58818a77 | 2704 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2705 | |
2706 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2707 | found = strstr(name, dev->driver->name); | |
2708 | if (found) { | |
2709 | /* get ID */ | |
2710 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2711 | ||
2712 | /* discard ID from name if ID == -1 */ | |
2713 | if (*id == -1) | |
2714 | found[strlen(dev->driver->name)] = '\0'; | |
2715 | } | |
2716 | ||
2717 | } else { | |
2718 | /* I2C component devices are named "bus-addr" */ | |
2719 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2720 | char tmp[NAME_SIZE]; | |
2721 | ||
2722 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2723 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2724 | |
2725 | /* sanitize component name for DAI link creation */ | |
2726 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2727 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2728 | } else |
2729 | *id = 0; | |
2730 | } | |
2731 | ||
2732 | return kstrdup(name, GFP_KERNEL); | |
2733 | } | |
2734 | ||
2735 | /* | |
2736 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2737 | * any ".-1" and using the DAI name (instead of device name). | |
2738 | */ | |
2739 | static inline char *fmt_multiple_name(struct device *dev, | |
2740 | struct snd_soc_dai_driver *dai_drv) | |
2741 | { | |
2742 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2743 | dev_err(dev, |
2744 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2745 | dev_name(dev)); | |
f0fba2ad LG |
2746 | return NULL; |
2747 | } | |
2748 | ||
2749 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2750 | } | |
2751 | ||
9115171a | 2752 | /** |
32c9ba54 | 2753 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2754 | * |
32c9ba54 | 2755 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2756 | */ |
32c9ba54 | 2757 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2758 | { |
5c1d5f09 | 2759 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2760 | |
5c1d5f09 | 2761 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2762 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2763 | dai->name); | |
5c1d5f09 | 2764 | list_del(&dai->list); |
32c9ba54 | 2765 | kfree(dai->name); |
f0fba2ad | 2766 | kfree(dai); |
f0fba2ad | 2767 | } |
9115171a | 2768 | } |
9115171a | 2769 | |
5e4fb372 ML |
2770 | /* Create a DAI and add it to the component's DAI list */ |
2771 | static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, | |
2772 | struct snd_soc_dai_driver *dai_drv, | |
2773 | bool legacy_dai_naming) | |
2774 | { | |
2775 | struct device *dev = component->dev; | |
2776 | struct snd_soc_dai *dai; | |
2777 | ||
2778 | dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); | |
2779 | ||
2780 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
2781 | if (dai == NULL) | |
2782 | return NULL; | |
2783 | ||
2784 | /* | |
2785 | * Back in the old days when we still had component-less DAIs, | |
2786 | * instead of having a static name, component-less DAIs would | |
2787 | * inherit the name of the parent device so it is possible to | |
2788 | * register multiple instances of the DAI. We still need to keep | |
2789 | * the same naming style even though those DAIs are not | |
2790 | * component-less anymore. | |
2791 | */ | |
2792 | if (legacy_dai_naming && | |
2793 | (dai_drv->id == 0 || dai_drv->name == NULL)) { | |
2794 | dai->name = fmt_single_name(dev, &dai->id); | |
2795 | } else { | |
2796 | dai->name = fmt_multiple_name(dev, dai_drv); | |
2797 | if (dai_drv->id) | |
2798 | dai->id = dai_drv->id; | |
2799 | else | |
2800 | dai->id = component->num_dai; | |
2801 | } | |
2802 | if (dai->name == NULL) { | |
2803 | kfree(dai); | |
2804 | return NULL; | |
2805 | } | |
2806 | ||
2807 | dai->component = component; | |
2808 | dai->dev = dev; | |
2809 | dai->driver = dai_drv; | |
2810 | if (!dai->driver->ops) | |
2811 | dai->driver->ops = &null_dai_ops; | |
2812 | ||
2813 | list_add(&dai->list, &component->dai_list); | |
2814 | component->num_dai++; | |
2815 | ||
2816 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); | |
2817 | return dai; | |
2818 | } | |
2819 | ||
9115171a | 2820 | /** |
32c9ba54 | 2821 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 2822 | * |
6106d129 LPC |
2823 | * @component: The component the DAIs are registered for |
2824 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 2825 | * @count: Number of DAIs |
32c9ba54 LPC |
2826 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
2827 | * parent's name. | |
9115171a | 2828 | */ |
6106d129 | 2829 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
2830 | struct snd_soc_dai_driver *dai_drv, size_t count, |
2831 | bool legacy_dai_naming) | |
9115171a | 2832 | { |
6106d129 | 2833 | struct device *dev = component->dev; |
f0fba2ad | 2834 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
2835 | unsigned int i; |
2836 | int ret; | |
f0fba2ad | 2837 | |
f110bfc7 | 2838 | dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count); |
9115171a | 2839 | |
bb13109d | 2840 | component->dai_drv = dai_drv; |
bb13109d | 2841 | |
9115171a | 2842 | for (i = 0; i < count; i++) { |
f0fba2ad | 2843 | |
5e4fb372 ML |
2844 | dai = soc_add_dai(component, dai_drv + i, |
2845 | count == 1 && legacy_dai_naming); | |
c46e0079 AL |
2846 | if (dai == NULL) { |
2847 | ret = -ENOMEM; | |
2848 | goto err; | |
2849 | } | |
9115171a | 2850 | } |
f0fba2ad | 2851 | |
9115171a | 2852 | return 0; |
f0fba2ad | 2853 | |
9115171a | 2854 | err: |
32c9ba54 | 2855 | snd_soc_unregister_dais(component); |
f0fba2ad | 2856 | |
9115171a MB |
2857 | return ret; |
2858 | } | |
9115171a | 2859 | |
68003e6c ML |
2860 | /** |
2861 | * snd_soc_register_dai - Register a DAI dynamically & create its widgets | |
2862 | * | |
2863 | * @component: The component the DAIs are registered for | |
2864 | * @dai_drv: DAI driver to use for the DAI | |
2865 | * | |
2866 | * Topology can use this API to register DAIs when probing a component. | |
2867 | * These DAIs's widgets will be freed in the card cleanup and the DAIs | |
2868 | * will be freed in the component cleanup. | |
2869 | */ | |
2870 | int snd_soc_register_dai(struct snd_soc_component *component, | |
2871 | struct snd_soc_dai_driver *dai_drv) | |
2872 | { | |
2873 | struct snd_soc_dapm_context *dapm = | |
2874 | snd_soc_component_get_dapm(component); | |
2875 | struct snd_soc_dai *dai; | |
2876 | int ret; | |
054880fe | 2877 | |
68003e6c ML |
2878 | if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) { |
2879 | dev_err(component->dev, "Invalid dai type %d\n", | |
2880 | dai_drv->dobj.type); | |
2881 | return -EINVAL; | |
9115171a MB |
2882 | } |
2883 | ||
68003e6c ML |
2884 | lockdep_assert_held(&client_mutex); |
2885 | dai = soc_add_dai(component, dai_drv, false); | |
2886 | if (!dai) | |
2887 | return -ENOMEM; | |
9115171a | 2888 | |
68003e6c ML |
2889 | /* Create the DAI widgets here. After adding DAIs, topology may |
2890 | * also add routes that need these widgets as source or sink. | |
2891 | */ | |
2892 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
2893 | if (ret != 0) { | |
2894 | dev_err(component->dev, | |
2895 | "Failed to create DAI widgets %d\n", ret); | |
2896 | } | |
9115171a MB |
2897 | |
2898 | return ret; | |
2899 | } | |
68003e6c | 2900 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); |
9115171a | 2901 | |
14e8bdeb LPC |
2902 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
2903 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 2904 | { |
14e8bdeb | 2905 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 2906 | |
14e8bdeb LPC |
2907 | component->driver->seq_notifier(component, type, subseq); |
2908 | } | |
d191bd8d | 2909 | |
14e8bdeb LPC |
2910 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
2911 | int event) | |
2912 | { | |
2913 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 2914 | |
14e8bdeb LPC |
2915 | return component->driver->stream_event(component, event); |
2916 | } | |
e2c330b9 | 2917 | |
bb13109d LPC |
2918 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
2919 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 2920 | { |
ce0fc93a LPC |
2921 | struct snd_soc_dapm_context *dapm; |
2922 | ||
bb13109d LPC |
2923 | component->name = fmt_single_name(dev, &component->id); |
2924 | if (!component->name) { | |
2925 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
2926 | return -ENOMEM; |
2927 | } | |
2928 | ||
bb13109d LPC |
2929 | component->dev = dev; |
2930 | component->driver = driver; | |
61aca564 LPC |
2931 | component->probe = component->driver->probe; |
2932 | component->remove = component->driver->remove; | |
d191bd8d | 2933 | |
4890140f | 2934 | dapm = &component->dapm; |
ce0fc93a LPC |
2935 | dapm->dev = dev; |
2936 | dapm->component = component; | |
2937 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 2938 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
2939 | if (driver->seq_notifier) |
2940 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
2941 | if (driver->stream_event) | |
2942 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 2943 | |
61aca564 LPC |
2944 | component->controls = driver->controls; |
2945 | component->num_controls = driver->num_controls; | |
2946 | component->dapm_widgets = driver->dapm_widgets; | |
2947 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
2948 | component->dapm_routes = driver->dapm_routes; | |
2949 | component->num_dapm_routes = driver->num_dapm_routes; | |
2950 | ||
bb13109d LPC |
2951 | INIT_LIST_HEAD(&component->dai_list); |
2952 | mutex_init(&component->io_mutex); | |
d191bd8d | 2953 | |
bb13109d LPC |
2954 | return 0; |
2955 | } | |
d191bd8d | 2956 | |
20feb881 | 2957 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 2958 | { |
20feb881 LPC |
2959 | int val_bytes = regmap_get_val_bytes(component->regmap); |
2960 | ||
2961 | /* Errors are legitimate for non-integer byte multiples */ | |
2962 | if (val_bytes > 0) | |
2963 | component->val_bytes = val_bytes; | |
2964 | } | |
2965 | ||
e874bf5f LPC |
2966 | #ifdef CONFIG_REGMAP |
2967 | ||
20feb881 LPC |
2968 | /** |
2969 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
2970 | * @component: The component for which to initialize the regmap instance | |
2971 | * @regmap: The regmap instance that should be used by the component | |
2972 | * | |
2973 | * This function allows deferred assignment of the regmap instance that is | |
2974 | * associated with the component. Only use this if the regmap instance is not | |
2975 | * yet ready when the component is registered. The function must also be called | |
2976 | * before the first IO attempt of the component. | |
2977 | */ | |
2978 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
2979 | struct regmap *regmap) | |
2980 | { | |
2981 | component->regmap = regmap; | |
2982 | snd_soc_component_setup_regmap(component); | |
886f5692 | 2983 | } |
20feb881 LPC |
2984 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
2985 | ||
2986 | /** | |
2987 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
2988 | * @component: The component for which to de-initialize the regmap instance | |
2989 | * | |
2990 | * Calls regmap_exit() on the regmap instance associated to the component and | |
2991 | * removes the regmap instance from the component. | |
2992 | * | |
2993 | * This function should only be used if snd_soc_component_init_regmap() was used | |
2994 | * to initialize the regmap instance. | |
2995 | */ | |
2996 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
2997 | { | |
2998 | regmap_exit(component->regmap); | |
2999 | component->regmap = NULL; | |
3000 | } | |
3001 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 3002 | |
e874bf5f | 3003 | #endif |
886f5692 | 3004 | |
bb13109d LPC |
3005 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
3006 | { | |
20feb881 LPC |
3007 | if (!component->write && !component->read) { |
3008 | if (!component->regmap) | |
3009 | component->regmap = dev_get_regmap(component->dev, NULL); | |
3010 | if (component->regmap) | |
3011 | snd_soc_component_setup_regmap(component); | |
3012 | } | |
886f5692 | 3013 | |
bb13109d | 3014 | list_add(&component->list, &component_list); |
8a978234 | 3015 | INIT_LIST_HEAD(&component->dobj_list); |
bb13109d | 3016 | } |
d191bd8d | 3017 | |
bb13109d LPC |
3018 | static void snd_soc_component_add(struct snd_soc_component *component) |
3019 | { | |
d191bd8d | 3020 | mutex_lock(&client_mutex); |
bb13109d | 3021 | snd_soc_component_add_unlocked(component); |
d191bd8d | 3022 | mutex_unlock(&client_mutex); |
bb13109d | 3023 | } |
d191bd8d | 3024 | |
bb13109d LPC |
3025 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
3026 | { | |
3027 | snd_soc_unregister_dais(component); | |
3028 | kfree(component->name); | |
3029 | } | |
d191bd8d | 3030 | |
bb13109d LPC |
3031 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
3032 | { | |
3033 | list_del(&component->list); | |
3034 | } | |
d191bd8d | 3035 | |
d191bd8d KM |
3036 | int snd_soc_register_component(struct device *dev, |
3037 | const struct snd_soc_component_driver *cmpnt_drv, | |
3038 | struct snd_soc_dai_driver *dai_drv, | |
3039 | int num_dai) | |
3040 | { | |
3041 | struct snd_soc_component *cmpnt; | |
bb13109d | 3042 | int ret; |
d191bd8d | 3043 | |
bb13109d | 3044 | cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); |
d191bd8d KM |
3045 | if (!cmpnt) { |
3046 | dev_err(dev, "ASoC: Failed to allocate memory\n"); | |
3047 | return -ENOMEM; | |
3048 | } | |
3049 | ||
bb13109d LPC |
3050 | ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); |
3051 | if (ret) | |
3052 | goto err_free; | |
3053 | ||
3d59400f | 3054 | cmpnt->ignore_pmdown_time = true; |
98e639fb | 3055 | cmpnt->registered_as_component = true; |
3d59400f | 3056 | |
bb13109d LPC |
3057 | ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); |
3058 | if (ret < 0) { | |
f42cf8d6 | 3059 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d LPC |
3060 | goto err_cleanup; |
3061 | } | |
d191bd8d | 3062 | |
bb13109d | 3063 | snd_soc_component_add(cmpnt); |
4da53393 | 3064 | |
bb13109d | 3065 | return 0; |
4da53393 | 3066 | |
bb13109d LPC |
3067 | err_cleanup: |
3068 | snd_soc_component_cleanup(cmpnt); | |
3069 | err_free: | |
3070 | kfree(cmpnt); | |
3071 | return ret; | |
4da53393 | 3072 | } |
bb13109d | 3073 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 3074 | |
d191bd8d KM |
3075 | /** |
3076 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
3077 | * | |
628536ea | 3078 | * @dev: The device to unregister |
d191bd8d KM |
3079 | */ |
3080 | void snd_soc_unregister_component(struct device *dev) | |
3081 | { | |
3082 | struct snd_soc_component *cmpnt; | |
3083 | ||
34e81ab4 | 3084 | mutex_lock(&client_mutex); |
d191bd8d | 3085 | list_for_each_entry(cmpnt, &component_list, list) { |
98e639fb | 3086 | if (dev == cmpnt->dev && cmpnt->registered_as_component) |
d191bd8d KM |
3087 | goto found; |
3088 | } | |
34e81ab4 | 3089 | mutex_unlock(&client_mutex); |
d191bd8d KM |
3090 | return; |
3091 | ||
3092 | found: | |
8a978234 | 3093 | snd_soc_tplg_component_remove(cmpnt, SND_SOC_TPLG_INDEX_ALL); |
34e81ab4 LPC |
3094 | snd_soc_component_del_unlocked(cmpnt); |
3095 | mutex_unlock(&client_mutex); | |
bb13109d LPC |
3096 | snd_soc_component_cleanup(cmpnt); |
3097 | kfree(cmpnt); | |
d191bd8d KM |
3098 | } |
3099 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 3100 | |
f1d45cc3 | 3101 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
3102 | { |
3103 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 3104 | |
f1d45cc3 | 3105 | return platform->driver->probe(platform); |
e2c330b9 LPC |
3106 | } |
3107 | ||
f1d45cc3 | 3108 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
3109 | { |
3110 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
3111 | ||
f1d45cc3 | 3112 | platform->driver->remove(platform); |
d191bd8d | 3113 | } |
d191bd8d | 3114 | |
12a48a8c | 3115 | /** |
71a45cda LPC |
3116 | * snd_soc_add_platform - Add a platform to the ASoC core |
3117 | * @dev: The parent device for the platform | |
3118 | * @platform: The platform to add | |
7d1442b4 | 3119 | * @platform_drv: The driver for the platform |
12a48a8c | 3120 | */ |
71a45cda | 3121 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 3122 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 3123 | { |
b37f1d12 LPC |
3124 | int ret; |
3125 | ||
bb13109d LPC |
3126 | ret = snd_soc_component_initialize(&platform->component, |
3127 | &platform_drv->component_driver, dev); | |
3128 | if (ret) | |
3129 | return ret; | |
12a48a8c | 3130 | |
f0fba2ad LG |
3131 | platform->dev = dev; |
3132 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
3133 | |
3134 | if (platform_drv->probe) | |
3135 | platform->component.probe = snd_soc_platform_drv_probe; | |
3136 | if (platform_drv->remove) | |
3137 | platform->component.remove = snd_soc_platform_drv_remove; | |
12a48a8c | 3138 | |
81c7cfd1 LPC |
3139 | #ifdef CONFIG_DEBUG_FS |
3140 | platform->component.debugfs_prefix = "platform"; | |
3141 | #endif | |
12a48a8c MB |
3142 | |
3143 | mutex_lock(&client_mutex); | |
bb13109d | 3144 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
3145 | list_add(&platform->list, &platform_list); |
3146 | mutex_unlock(&client_mutex); | |
3147 | ||
f4333203 LPC |
3148 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
3149 | platform->component.name); | |
12a48a8c MB |
3150 | |
3151 | return 0; | |
3152 | } | |
71a45cda | 3153 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
3154 | |
3155 | /** | |
71a45cda | 3156 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 3157 | * |
628536ea JC |
3158 | * @dev: The device for the platform |
3159 | * @platform_drv: The driver for the platform | |
12a48a8c | 3160 | */ |
71a45cda LPC |
3161 | int snd_soc_register_platform(struct device *dev, |
3162 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3163 | { |
f0fba2ad | 3164 | struct snd_soc_platform *platform; |
71a45cda | 3165 | int ret; |
f0fba2ad | 3166 | |
71a45cda | 3167 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 3168 | |
71a45cda LPC |
3169 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
3170 | if (platform == NULL) | |
3171 | return -ENOMEM; | |
3172 | ||
3173 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
3174 | if (ret) | |
3175 | kfree(platform); | |
3176 | ||
3177 | return ret; | |
3178 | } | |
3179 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3180 | ||
3181 | /** | |
3182 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
3183 | * @platform: the platform to remove | |
3184 | */ | |
3185 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
3186 | { | |
b37f1d12 | 3187 | |
12a48a8c MB |
3188 | mutex_lock(&client_mutex); |
3189 | list_del(&platform->list); | |
bb13109d | 3190 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
3191 | mutex_unlock(&client_mutex); |
3192 | ||
71a45cda | 3193 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 3194 | platform->component.name); |
decc27b0 DM |
3195 | |
3196 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
3197 | } |
3198 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
3199 | ||
3200 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
3201 | { | |
3202 | struct snd_soc_platform *platform; | |
3203 | ||
34e81ab4 | 3204 | mutex_lock(&client_mutex); |
71a45cda | 3205 | list_for_each_entry(platform, &platform_list, list) { |
34e81ab4 LPC |
3206 | if (dev == platform->dev) { |
3207 | mutex_unlock(&client_mutex); | |
71a45cda | 3208 | return platform; |
34e81ab4 | 3209 | } |
71a45cda | 3210 | } |
34e81ab4 | 3211 | mutex_unlock(&client_mutex); |
71a45cda LPC |
3212 | |
3213 | return NULL; | |
3214 | } | |
3215 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
3216 | ||
3217 | /** | |
3218 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3219 | * | |
628536ea | 3220 | * @dev: platform to unregister |
71a45cda LPC |
3221 | */ |
3222 | void snd_soc_unregister_platform(struct device *dev) | |
3223 | { | |
3224 | struct snd_soc_platform *platform; | |
3225 | ||
3226 | platform = snd_soc_lookup_platform(dev); | |
3227 | if (!platform) | |
3228 | return; | |
3229 | ||
3230 | snd_soc_remove_platform(platform); | |
f0fba2ad | 3231 | kfree(platform); |
12a48a8c MB |
3232 | } |
3233 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3234 | ||
151ab22c MB |
3235 | static u64 codec_format_map[] = { |
3236 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3237 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3238 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3239 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3240 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3241 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3242 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3243 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3244 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3245 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3246 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3247 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3248 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3249 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3250 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3251 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3252 | }; | |
3253 | ||
3254 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3255 | * the endianness of the data but we're using the CPU format | |
3256 | * definitions which do need to include endianness so we ensure that | |
3257 | * codec DAIs always have both big and little endian variants set. | |
3258 | */ | |
3259 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3260 | { | |
3261 | int i; | |
3262 | ||
3263 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3264 | if (stream->formats & codec_format_map[i]) | |
3265 | stream->formats |= codec_format_map[i]; | |
3266 | } | |
3267 | ||
f1d45cc3 LPC |
3268 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
3269 | { | |
3270 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3271 | ||
3272 | return codec->driver->probe(codec); | |
3273 | } | |
3274 | ||
3275 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
3276 | { | |
3277 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3278 | ||
3279 | codec->driver->remove(codec); | |
3280 | } | |
3281 | ||
e2c330b9 LPC |
3282 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
3283 | unsigned int reg, unsigned int val) | |
3284 | { | |
3285 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3286 | ||
3287 | return codec->driver->write(codec, reg, val); | |
3288 | } | |
3289 | ||
3290 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
3291 | unsigned int reg, unsigned int *val) | |
3292 | { | |
3293 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3294 | ||
3295 | *val = codec->driver->read(codec, reg); | |
3296 | ||
3297 | return 0; | |
3298 | } | |
3299 | ||
68f831c2 LPC |
3300 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
3301 | enum snd_soc_bias_level level) | |
3302 | { | |
3303 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
3304 | ||
3305 | return codec->driver->set_bias_level(codec, level); | |
3306 | } | |
3307 | ||
0d0cf00a MB |
3308 | /** |
3309 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3310 | * | |
628536ea JC |
3311 | * @dev: The parent device for this codec |
3312 | * @codec_drv: Codec driver | |
3313 | * @dai_drv: The associated DAI driver | |
3314 | * @num_dai: Number of DAIs | |
0d0cf00a | 3315 | */ |
f0fba2ad | 3316 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3317 | const struct snd_soc_codec_driver *codec_drv, |
3318 | struct snd_soc_dai_driver *dai_drv, | |
3319 | int num_dai) | |
0d0cf00a | 3320 | { |
4890140f | 3321 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3322 | struct snd_soc_codec *codec; |
bb13109d | 3323 | struct snd_soc_dai *dai; |
f0fba2ad | 3324 | int ret, i; |
151ab22c | 3325 | |
f0fba2ad LG |
3326 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3327 | ||
3328 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3329 | if (codec == NULL) | |
3330 | return -ENOMEM; | |
0d0cf00a | 3331 | |
f1d45cc3 | 3332 | codec->component.codec = codec; |
ce0fc93a | 3333 | |
bb13109d LPC |
3334 | ret = snd_soc_component_initialize(&codec->component, |
3335 | &codec_drv->component_driver, dev); | |
3336 | if (ret) | |
3337 | goto err_free; | |
f0fba2ad | 3338 | |
f1d45cc3 LPC |
3339 | if (codec_drv->probe) |
3340 | codec->component.probe = snd_soc_codec_drv_probe; | |
3341 | if (codec_drv->remove) | |
3342 | codec->component.remove = snd_soc_codec_drv_remove; | |
e2c330b9 LPC |
3343 | if (codec_drv->write) |
3344 | codec->component.write = snd_soc_codec_drv_write; | |
3345 | if (codec_drv->read) | |
3346 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3347 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
4890140f LPC |
3348 | |
3349 | dapm = snd_soc_codec_get_dapm(codec); | |
3350 | dapm->idle_bias_off = codec_drv->idle_bias_off; | |
3351 | dapm->suspend_bias_off = codec_drv->suspend_bias_off; | |
14e8bdeb | 3352 | if (codec_drv->seq_notifier) |
4890140f | 3353 | dapm->seq_notifier = codec_drv->seq_notifier; |
68f831c2 | 3354 | if (codec_drv->set_bias_level) |
4890140f | 3355 | dapm->set_bias_level = snd_soc_codec_set_bias_level; |
7a30a3db DP |
3356 | codec->dev = dev; |
3357 | codec->driver = codec_drv; | |
e2c330b9 | 3358 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3359 | |
81c7cfd1 LPC |
3360 | #ifdef CONFIG_DEBUG_FS |
3361 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3362 | codec->component.debugfs_prefix = "codec"; | |
3363 | #endif | |
3364 | ||
886f5692 LPC |
3365 | if (codec_drv->get_regmap) |
3366 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3367 | |
f0fba2ad LG |
3368 | for (i = 0; i < num_dai; i++) { |
3369 | fixup_codec_formats(&dai_drv[i].playback); | |
3370 | fixup_codec_formats(&dai_drv[i].capture); | |
3371 | } | |
3372 | ||
bb13109d | 3373 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3374 | if (ret < 0) { |
f42cf8d6 | 3375 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d | 3376 | goto err_cleanup; |
26b01ccd | 3377 | } |
f0fba2ad | 3378 | |
bb13109d LPC |
3379 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3380 | dai->codec = codec; | |
f0fba2ad | 3381 | |
e1328a83 | 3382 | mutex_lock(&client_mutex); |
bb13109d | 3383 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3384 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3385 | mutex_unlock(&client_mutex); |
3386 | ||
f4333203 LPC |
3387 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3388 | codec->component.name); | |
0d0cf00a | 3389 | return 0; |
f0fba2ad | 3390 | |
bb13109d LPC |
3391 | err_cleanup: |
3392 | snd_soc_component_cleanup(&codec->component); | |
3393 | err_free: | |
f0fba2ad LG |
3394 | kfree(codec); |
3395 | return ret; | |
0d0cf00a MB |
3396 | } |
3397 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3398 | ||
3399 | /** | |
3400 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3401 | * | |
628536ea | 3402 | * @dev: codec to unregister |
0d0cf00a | 3403 | */ |
f0fba2ad | 3404 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3405 | { |
f0fba2ad | 3406 | struct snd_soc_codec *codec; |
f0fba2ad | 3407 | |
34e81ab4 | 3408 | mutex_lock(&client_mutex); |
f0fba2ad LG |
3409 | list_for_each_entry(codec, &codec_list, list) { |
3410 | if (dev == codec->dev) | |
3411 | goto found; | |
3412 | } | |
34e81ab4 | 3413 | mutex_unlock(&client_mutex); |
f0fba2ad LG |
3414 | return; |
3415 | ||
3416 | found: | |
0d0cf00a | 3417 | list_del(&codec->list); |
bb13109d | 3418 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3419 | mutex_unlock(&client_mutex); |
3420 | ||
f4333203 LPC |
3421 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3422 | codec->component.name); | |
f0fba2ad | 3423 | |
bb13109d | 3424 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3425 | snd_soc_cache_exit(codec); |
f0fba2ad | 3426 | kfree(codec); |
0d0cf00a MB |
3427 | } |
3428 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3429 | ||
bec4fa05 SW |
3430 | /* Retrieve a card's name from device tree */ |
3431 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3432 | const char *propname) | |
3433 | { | |
7e07e7c0 | 3434 | struct device_node *np; |
bec4fa05 SW |
3435 | int ret; |
3436 | ||
7e07e7c0 TB |
3437 | if (!card->dev) { |
3438 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3439 | return -EINVAL; | |
3440 | } | |
3441 | ||
3442 | np = card->dev->of_node; | |
3443 | ||
bec4fa05 SW |
3444 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3445 | /* | |
3446 | * EINVAL means the property does not exist. This is fine providing | |
3447 | * card->name was previously set, which is checked later in | |
3448 | * snd_soc_register_card. | |
3449 | */ | |
3450 | if (ret < 0 && ret != -EINVAL) { | |
3451 | dev_err(card->dev, | |
f110bfc7 | 3452 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3453 | propname, ret); |
3454 | return ret; | |
3455 | } | |
3456 | ||
3457 | return 0; | |
3458 | } | |
3459 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3460 | ||
9a6d4860 XL |
3461 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3462 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3463 | SND_SOC_DAPM_LINE("Line", NULL), | |
3464 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3465 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3466 | }; | |
3467 | ||
3468 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, | |
3469 | const char *propname) | |
3470 | { | |
3471 | struct device_node *np = card->dev->of_node; | |
3472 | struct snd_soc_dapm_widget *widgets; | |
3473 | const char *template, *wname; | |
3474 | int i, j, num_widgets, ret; | |
3475 | ||
3476 | num_widgets = of_property_count_strings(np, propname); | |
3477 | if (num_widgets < 0) { | |
3478 | dev_err(card->dev, | |
3479 | "ASoC: Property '%s' does not exist\n", propname); | |
3480 | return -EINVAL; | |
3481 | } | |
3482 | if (num_widgets & 1) { | |
3483 | dev_err(card->dev, | |
3484 | "ASoC: Property '%s' length is not even\n", propname); | |
3485 | return -EINVAL; | |
3486 | } | |
3487 | ||
3488 | num_widgets /= 2; | |
3489 | if (!num_widgets) { | |
3490 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3491 | propname); | |
3492 | return -EINVAL; | |
3493 | } | |
3494 | ||
3495 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3496 | GFP_KERNEL); | |
3497 | if (!widgets) { | |
3498 | dev_err(card->dev, | |
3499 | "ASoC: Could not allocate memory for widgets\n"); | |
3500 | return -ENOMEM; | |
3501 | } | |
3502 | ||
3503 | for (i = 0; i < num_widgets; i++) { | |
3504 | ret = of_property_read_string_index(np, propname, | |
3505 | 2 * i, &template); | |
3506 | if (ret) { | |
3507 | dev_err(card->dev, | |
3508 | "ASoC: Property '%s' index %d read error:%d\n", | |
3509 | propname, 2 * i, ret); | |
3510 | return -EINVAL; | |
3511 | } | |
3512 | ||
3513 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3514 | if (!strncmp(template, simple_widgets[j].name, | |
3515 | strlen(simple_widgets[j].name))) { | |
3516 | widgets[i] = simple_widgets[j]; | |
3517 | break; | |
3518 | } | |
3519 | } | |
3520 | ||
3521 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3522 | dev_err(card->dev, | |
3523 | "ASoC: DAPM widget '%s' is not supported\n", | |
3524 | template); | |
3525 | return -EINVAL; | |
3526 | } | |
3527 | ||
3528 | ret = of_property_read_string_index(np, propname, | |
3529 | (2 * i) + 1, | |
3530 | &wname); | |
3531 | if (ret) { | |
3532 | dev_err(card->dev, | |
3533 | "ASoC: Property '%s' index %d read error:%d\n", | |
3534 | propname, (2 * i) + 1, ret); | |
3535 | return -EINVAL; | |
3536 | } | |
3537 | ||
3538 | widgets[i].name = wname; | |
3539 | } | |
3540 | ||
f23e860e NC |
3541 | card->of_dapm_widgets = widgets; |
3542 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
3543 | |
3544 | return 0; | |
3545 | } | |
3546 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); | |
3547 | ||
6131084a JS |
3548 | static int snd_soc_of_get_slot_mask(struct device_node *np, |
3549 | const char *prop_name, | |
3550 | unsigned int *mask) | |
3551 | { | |
3552 | u32 val; | |
6c84e591 | 3553 | const __be32 *of_slot_mask = of_get_property(np, prop_name, &val); |
6131084a JS |
3554 | int i; |
3555 | ||
3556 | if (!of_slot_mask) | |
3557 | return 0; | |
3558 | val /= sizeof(u32); | |
3559 | for (i = 0; i < val; i++) | |
3560 | if (be32_to_cpup(&of_slot_mask[i])) | |
3561 | *mask |= (1 << i); | |
3562 | ||
3563 | return val; | |
3564 | } | |
3565 | ||
89c67857 | 3566 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
6131084a JS |
3567 | unsigned int *tx_mask, |
3568 | unsigned int *rx_mask, | |
89c67857 XL |
3569 | unsigned int *slots, |
3570 | unsigned int *slot_width) | |
3571 | { | |
3572 | u32 val; | |
3573 | int ret; | |
3574 | ||
6131084a JS |
3575 | if (tx_mask) |
3576 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask); | |
3577 | if (rx_mask) | |
3578 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask); | |
3579 | ||
89c67857 XL |
3580 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { |
3581 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3582 | if (ret) | |
3583 | return ret; | |
3584 | ||
3585 | if (slots) | |
3586 | *slots = val; | |
3587 | } | |
3588 | ||
3589 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3590 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3591 | if (ret) | |
3592 | return ret; | |
3593 | ||
3594 | if (slot_width) | |
3595 | *slot_width = val; | |
3596 | } | |
3597 | ||
3598 | return 0; | |
3599 | } | |
3600 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3601 | ||
5e3cdaa2 KM |
3602 | void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, |
3603 | struct snd_soc_codec_conf *codec_conf, | |
3604 | struct device_node *of_node, | |
3605 | const char *propname) | |
3606 | { | |
3607 | struct device_node *np = card->dev->of_node; | |
3608 | const char *str; | |
3609 | int ret; | |
3610 | ||
3611 | ret = of_property_read_string(np, propname, &str); | |
3612 | if (ret < 0) { | |
3613 | /* no prefix is not error */ | |
3614 | return; | |
3615 | } | |
3616 | ||
3617 | codec_conf->of_node = of_node; | |
3618 | codec_conf->name_prefix = str; | |
3619 | } | |
3620 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix); | |
3621 | ||
a4a54dd5 SW |
3622 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3623 | const char *propname) | |
3624 | { | |
3625 | struct device_node *np = card->dev->of_node; | |
e3b1e6a1 | 3626 | int num_routes; |
a4a54dd5 SW |
3627 | struct snd_soc_dapm_route *routes; |
3628 | int i, ret; | |
3629 | ||
3630 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3631 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3632 | dev_err(card->dev, |
3633 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3634 | propname); | |
a4a54dd5 SW |
3635 | return -EINVAL; |
3636 | } | |
3637 | num_routes /= 2; | |
3638 | if (!num_routes) { | |
f110bfc7 | 3639 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3640 | propname); |
3641 | return -EINVAL; | |
3642 | } | |
3643 | ||
e3b1e6a1 | 3644 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3645 | GFP_KERNEL); |
3646 | if (!routes) { | |
3647 | dev_err(card->dev, | |
f110bfc7 | 3648 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3649 | return -EINVAL; |
3650 | } | |
3651 | ||
3652 | for (i = 0; i < num_routes; i++) { | |
3653 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3654 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3655 | if (ret) { |
c871bd0b MB |
3656 | dev_err(card->dev, |
3657 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3658 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3659 | return -EINVAL; |
3660 | } | |
3661 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3662 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3663 | if (ret) { |
3664 | dev_err(card->dev, | |
c871bd0b MB |
3665 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3666 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3667 | return -EINVAL; |
3668 | } | |
3669 | } | |
3670 | ||
f23e860e NC |
3671 | card->num_of_dapm_routes = num_routes; |
3672 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
3673 | |
3674 | return 0; | |
3675 | } | |
3676 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3677 | ||
a7930ed4 | 3678 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3679 | const char *prefix, |
3680 | struct device_node **bitclkmaster, | |
3681 | struct device_node **framemaster) | |
a7930ed4 KM |
3682 | { |
3683 | int ret, i; | |
3684 | char prop[128]; | |
3685 | unsigned int format = 0; | |
3686 | int bit, frame; | |
3687 | const char *str; | |
3688 | struct { | |
3689 | char *name; | |
3690 | unsigned int val; | |
3691 | } of_fmt_table[] = { | |
3692 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3693 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3694 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3695 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3696 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3697 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3698 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3699 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3700 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3701 | }; |
3702 | ||
3703 | if (!prefix) | |
3704 | prefix = ""; | |
3705 | ||
3706 | /* | |
3707 | * check "[prefix]format = xxx" | |
3708 | * SND_SOC_DAIFMT_FORMAT_MASK area | |
3709 | */ | |
3710 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3711 | ret = of_property_read_string(np, prop, &str); | |
3712 | if (ret == 0) { | |
3713 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3714 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3715 | format |= of_fmt_table[i].val; | |
3716 | break; | |
3717 | } | |
3718 | } | |
3719 | } | |
3720 | ||
3721 | /* | |
8c2d6a9f | 3722 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3723 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3724 | */ | |
8c2d6a9f | 3725 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
51930295 | 3726 | if (of_property_read_bool(np, prop)) |
8c2d6a9f KM |
3727 | format |= SND_SOC_DAIFMT_CONT; |
3728 | else | |
3729 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3730 | |
3731 | /* | |
3732 | * check "[prefix]bitclock-inversion" | |
3733 | * check "[prefix]frame-inversion" | |
3734 | * SND_SOC_DAIFMT_INV_MASK area | |
3735 | */ | |
3736 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3737 | bit = !!of_get_property(np, prop, NULL); | |
3738 | ||
3739 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3740 | frame = !!of_get_property(np, prop, NULL); | |
3741 | ||
3742 | switch ((bit << 4) + frame) { | |
3743 | case 0x11: | |
3744 | format |= SND_SOC_DAIFMT_IB_IF; | |
3745 | break; | |
3746 | case 0x10: | |
3747 | format |= SND_SOC_DAIFMT_IB_NF; | |
3748 | break; | |
3749 | case 0x01: | |
3750 | format |= SND_SOC_DAIFMT_NB_IF; | |
3751 | break; | |
3752 | default: | |
3753 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
3754 | break; | |
3755 | } | |
3756 | ||
3757 | /* | |
3758 | * check "[prefix]bitclock-master" | |
3759 | * check "[prefix]frame-master" | |
3760 | * SND_SOC_DAIFMT_MASTER_MASK area | |
3761 | */ | |
3762 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
3763 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3764 | if (bit && bitclkmaster) |
3765 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3766 | |
3767 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
3768 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3769 | if (frame && framemaster) |
3770 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3771 | |
3772 | switch ((bit << 4) + frame) { | |
3773 | case 0x11: | |
3774 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
3775 | break; | |
3776 | case 0x10: | |
3777 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
3778 | break; | |
3779 | case 0x01: | |
3780 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
3781 | break; | |
3782 | default: | |
3783 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
3784 | break; | |
3785 | } | |
3786 | ||
3787 | return format; | |
3788 | } | |
3789 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
3790 | ||
93b0f3ee JFM |
3791 | static int snd_soc_get_dai_name(struct of_phandle_args *args, |
3792 | const char **dai_name) | |
cb470087 KM |
3793 | { |
3794 | struct snd_soc_component *pos; | |
3e0aa8d8 | 3795 | struct device_node *component_of_node; |
93b0f3ee | 3796 | int ret = -EPROBE_DEFER; |
cb470087 KM |
3797 | |
3798 | mutex_lock(&client_mutex); | |
3799 | list_for_each_entry(pos, &component_list, list) { | |
3e0aa8d8 JS |
3800 | component_of_node = pos->dev->of_node; |
3801 | if (!component_of_node && pos->dev->parent) | |
3802 | component_of_node = pos->dev->parent->of_node; | |
3803 | ||
3804 | if (component_of_node != args->np) | |
cb470087 KM |
3805 | continue; |
3806 | ||
6833c452 | 3807 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
3808 | ret = pos->driver->of_xlate_dai_name(pos, |
3809 | args, | |
3810 | dai_name); | |
6833c452 KM |
3811 | } else { |
3812 | int id = -1; | |
3813 | ||
93b0f3ee | 3814 | switch (args->args_count) { |
6833c452 KM |
3815 | case 0: |
3816 | id = 0; /* same as dai_drv[0] */ | |
3817 | break; | |
3818 | case 1: | |
93b0f3ee | 3819 | id = args->args[0]; |
6833c452 KM |
3820 | break; |
3821 | default: | |
3822 | /* not supported */ | |
3823 | break; | |
3824 | } | |
3825 | ||
3826 | if (id < 0 || id >= pos->num_dai) { | |
3827 | ret = -EINVAL; | |
3dcba280 | 3828 | continue; |
6833c452 | 3829 | } |
e41975ed XL |
3830 | |
3831 | ret = 0; | |
3832 | ||
3833 | *dai_name = pos->dai_drv[id].name; | |
3834 | if (!*dai_name) | |
3835 | *dai_name = pos->name; | |
cb470087 KM |
3836 | } |
3837 | ||
cb470087 KM |
3838 | break; |
3839 | } | |
3840 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3841 | return ret; |
3842 | } | |
3843 | ||
3844 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3845 | const char **dai_name) | |
3846 | { | |
3847 | struct of_phandle_args args; | |
3848 | int ret; | |
3849 | ||
3850 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3851 | "#sound-dai-cells", 0, &args); | |
3852 | if (ret) | |
3853 | return ret; | |
3854 | ||
3855 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3856 | |
3857 | of_node_put(args.np); | |
3858 | ||
3859 | return ret; | |
3860 | } | |
3861 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3862 | ||
93b0f3ee JFM |
3863 | /* |
3864 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3865 | * @dev: Card device | |
3866 | * @of_node: Device node | |
3867 | * @dai_link: DAI link | |
3868 | * | |
3869 | * Builds an array of CODEC DAI components from the DAI link property | |
3870 | * 'sound-dai'. | |
3871 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
3872 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
3873 | * | |
3874 | * Returns 0 for success | |
3875 | */ | |
3876 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3877 | struct device_node *of_node, | |
3878 | struct snd_soc_dai_link *dai_link) | |
3879 | { | |
3880 | struct of_phandle_args args; | |
3881 | struct snd_soc_dai_link_component *component; | |
3882 | char *name; | |
3883 | int index, num_codecs, ret; | |
3884 | ||
3885 | /* Count the number of CODECs */ | |
3886 | name = "sound-dai"; | |
3887 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3888 | "#sound-dai-cells"); | |
3889 | if (num_codecs <= 0) { | |
3890 | if (num_codecs == -ENOENT) | |
3891 | dev_err(dev, "No 'sound-dai' property\n"); | |
3892 | else | |
3893 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3894 | return num_codecs; | |
3895 | } | |
3896 | component = devm_kzalloc(dev, | |
3897 | sizeof *component * num_codecs, | |
3898 | GFP_KERNEL); | |
3899 | if (!component) | |
3900 | return -ENOMEM; | |
3901 | dai_link->codecs = component; | |
3902 | dai_link->num_codecs = num_codecs; | |
3903 | ||
3904 | /* Parse the list */ | |
3905 | for (index = 0, component = dai_link->codecs; | |
3906 | index < dai_link->num_codecs; | |
3907 | index++, component++) { | |
3908 | ret = of_parse_phandle_with_args(of_node, name, | |
3909 | "#sound-dai-cells", | |
3910 | index, &args); | |
3911 | if (ret) | |
3912 | goto err; | |
3913 | component->of_node = args.np; | |
3914 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3915 | if (ret < 0) | |
3916 | goto err; | |
3917 | } | |
3918 | return 0; | |
3919 | err: | |
3920 | for (index = 0, component = dai_link->codecs; | |
3921 | index < dai_link->num_codecs; | |
3922 | index++, component++) { | |
3923 | if (!component->of_node) | |
3924 | break; | |
3925 | of_node_put(component->of_node); | |
3926 | component->of_node = NULL; | |
3927 | } | |
3928 | dai_link->codecs = NULL; | |
3929 | dai_link->num_codecs = 0; | |
3930 | return ret; | |
3931 | } | |
3932 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3933 | ||
c9b3a40f | 3934 | static int __init snd_soc_init(void) |
db2a4165 | 3935 | { |
6553bf06 | 3936 | snd_soc_debugfs_init(); |
fb257897 MB |
3937 | snd_soc_util_init(); |
3938 | ||
db2a4165 FM |
3939 | return platform_driver_register(&soc_driver); |
3940 | } | |
4abe8e16 | 3941 | module_init(snd_soc_init); |
db2a4165 | 3942 | |
7d8c16a6 | 3943 | static void __exit snd_soc_exit(void) |
db2a4165 | 3944 | { |
fb257897 | 3945 | snd_soc_util_exit(); |
6553bf06 | 3946 | snd_soc_debugfs_exit(); |
fb257897 | 3947 | |
384c89e2 | 3948 | #ifdef CONFIG_DEBUG_FS |
384c89e2 | 3949 | #endif |
3ff3f64b | 3950 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3951 | } |
db2a4165 FM |
3952 | module_exit(snd_soc_exit); |
3953 | ||
3954 | /* Module information */ | |
d331124d | 3955 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3956 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3957 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3958 | MODULE_ALIAS("platform:soc-audio"); |