Commit | Line | Data |
---|---|---|
db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
741a509f | 33 | #include <linux/pinctrl/consumer.h> |
f0e8ed85 | 34 | #include <linux/ctype.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
bec4fa05 | 36 | #include <linux/of.h> |
345233d7 | 37 | #include <linux/dmi.h> |
db2a4165 | 38 | #include <sound/core.h> |
3028eb8c | 39 | #include <sound/jack.h> |
db2a4165 FM |
40 | #include <sound/pcm.h> |
41 | #include <sound/pcm_params.h> | |
42 | #include <sound/soc.h> | |
01d7584c | 43 | #include <sound/soc-dpcm.h> |
8a978234 | 44 | #include <sound/soc-topology.h> |
db2a4165 FM |
45 | #include <sound/initval.h> |
46 | ||
a8b1d34f MB |
47 | #define CREATE_TRACE_POINTS |
48 | #include <trace/events/asoc.h> | |
49 | ||
f0fba2ad LG |
50 | #define NAME_SIZE 32 |
51 | ||
384c89e2 | 52 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
53 | struct dentry *snd_soc_debugfs_root; |
54 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
55 | #endif |
56 | ||
c5af3a2e | 57 | static DEFINE_MUTEX(client_mutex); |
12a48a8c | 58 | static LIST_HEAD(platform_list); |
0d0cf00a | 59 | static LIST_HEAD(codec_list); |
030e79f6 | 60 | static LIST_HEAD(component_list); |
c5af3a2e | 61 | |
db2a4165 FM |
62 | /* |
63 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
64 | * It can be used to eliminate pops between different playback streams, e.g. | |
65 | * between two audio tracks. | |
66 | */ | |
67 | static int pmdown_time = 5000; | |
68 | module_param(pmdown_time, int, 0); | |
69 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
70 | ||
2bc9a81e DP |
71 | /* returns the minimum number of bytes needed to represent |
72 | * a particular given value */ | |
73 | static int min_bytes_needed(unsigned long val) | |
74 | { | |
75 | int c = 0; | |
76 | int i; | |
77 | ||
78 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
79 | if (val & (1UL << i)) | |
80 | break; | |
81 | c = (sizeof val * 8) - c; | |
82 | if (!c || (c % 8)) | |
83 | c = (c + 8) / 8; | |
84 | else | |
85 | c /= 8; | |
86 | return c; | |
87 | } | |
88 | ||
13fd179f DP |
89 | /* fill buf which is 'len' bytes with a formatted |
90 | * string of the form 'reg: value\n' */ | |
91 | static int format_register_str(struct snd_soc_codec *codec, | |
92 | unsigned int reg, char *buf, size_t len) | |
93 | { | |
00b317a4 SW |
94 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
95 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f | 96 | int ret; |
13fd179f DP |
97 | |
98 | /* +2 for ': ' and + 1 for '\n' */ | |
99 | if (wordsize + regsize + 2 + 1 != len) | |
100 | return -EINVAL; | |
101 | ||
d6b6c2ca TI |
102 | sprintf(buf, "%.*x: ", wordsize, reg); |
103 | buf += wordsize + 2; | |
13fd179f | 104 | |
d6b6c2ca TI |
105 | ret = snd_soc_read(codec, reg); |
106 | if (ret < 0) | |
107 | memset(buf, 'X', regsize); | |
108 | else | |
109 | sprintf(buf, "%.*x", regsize, ret); | |
110 | buf[regsize] = '\n'; | |
111 | /* no NUL-termination needed */ | |
13fd179f DP |
112 | return 0; |
113 | } | |
114 | ||
2624d5fa | 115 | /* codec register dump */ |
13fd179f DP |
116 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
117 | size_t count, loff_t pos) | |
2624d5fa | 118 | { |
13fd179f | 119 | int i, step = 1; |
2bc9a81e | 120 | int wordsize, regsize; |
13fd179f DP |
121 | int len; |
122 | size_t total = 0; | |
123 | loff_t p = 0; | |
2bc9a81e | 124 | |
00b317a4 SW |
125 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
126 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 127 | |
13fd179f DP |
128 | len = wordsize + regsize + 2 + 1; |
129 | ||
f0fba2ad | 130 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
131 | return 0; |
132 | ||
f0fba2ad LG |
133 | if (codec->driver->reg_cache_step) |
134 | step = codec->driver->reg_cache_step; | |
2624d5fa | 135 | |
f0fba2ad | 136 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
20a0ec27 LPC |
137 | /* only support larger than PAGE_SIZE bytes debugfs |
138 | * entries for the default case */ | |
139 | if (p >= pos) { | |
140 | if (total + len >= count - 1) | |
141 | break; | |
142 | format_register_str(codec, i, buf + total, len); | |
143 | total += len; | |
5164d74d | 144 | } |
20a0ec27 | 145 | p += len; |
2624d5fa MB |
146 | } |
147 | ||
13fd179f | 148 | total = min(total, count - 1); |
2624d5fa | 149 | |
13fd179f | 150 | return total; |
2624d5fa | 151 | } |
13fd179f | 152 | |
2624d5fa MB |
153 | static ssize_t codec_reg_show(struct device *dev, |
154 | struct device_attribute *attr, char *buf) | |
155 | { | |
36ae1a96 | 156 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 157 | |
13fd179f | 158 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
159 | } |
160 | ||
161 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
162 | ||
dbe21408 MB |
163 | static ssize_t pmdown_time_show(struct device *dev, |
164 | struct device_attribute *attr, char *buf) | |
165 | { | |
36ae1a96 | 166 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 167 | |
f0fba2ad | 168 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
169 | } |
170 | ||
171 | static ssize_t pmdown_time_set(struct device *dev, | |
172 | struct device_attribute *attr, | |
173 | const char *buf, size_t count) | |
174 | { | |
36ae1a96 | 175 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 176 | int ret; |
dbe21408 | 177 | |
b785a492 | 178 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
179 | if (ret) |
180 | return ret; | |
dbe21408 MB |
181 | |
182 | return count; | |
183 | } | |
184 | ||
185 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
186 | ||
d29697dc TI |
187 | static struct attribute *soc_dev_attrs[] = { |
188 | &dev_attr_codec_reg.attr, | |
189 | &dev_attr_pmdown_time.attr, | |
190 | NULL | |
191 | }; | |
192 | ||
193 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
194 | struct attribute *attr, int idx) | |
195 | { | |
196 | struct device *dev = kobj_to_dev(kobj); | |
197 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
198 | ||
199 | if (attr == &dev_attr_pmdown_time.attr) | |
200 | return attr->mode; /* always visible */ | |
201 | return rtd->codec ? attr->mode : 0; /* enabled only with codec */ | |
202 | } | |
203 | ||
204 | static const struct attribute_group soc_dapm_dev_group = { | |
205 | .attrs = soc_dapm_dev_attrs, | |
206 | .is_visible = soc_dev_attr_is_visible, | |
207 | }; | |
208 | ||
209 | static const struct attribute_group soc_dev_roup = { | |
210 | .attrs = soc_dev_attrs, | |
211 | .is_visible = soc_dev_attr_is_visible, | |
212 | }; | |
213 | ||
214 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
215 | &soc_dapm_dev_group, | |
216 | &soc_dev_roup, | |
217 | NULL | |
218 | }; | |
219 | ||
2624d5fa | 220 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 221 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 222 | size_t count, loff_t *ppos) |
2624d5fa MB |
223 | { |
224 | ssize_t ret; | |
225 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
226 | char *buf; |
227 | ||
228 | if (*ppos < 0 || !count) | |
229 | return -EINVAL; | |
230 | ||
231 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
232 | if (!buf) |
233 | return -ENOMEM; | |
13fd179f DP |
234 | |
235 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
236 | if (ret >= 0) { | |
237 | if (copy_to_user(user_buf, buf, ret)) { | |
238 | kfree(buf); | |
239 | return -EFAULT; | |
240 | } | |
241 | *ppos += ret; | |
242 | } | |
243 | ||
2624d5fa MB |
244 | kfree(buf); |
245 | return ret; | |
246 | } | |
247 | ||
248 | static ssize_t codec_reg_write_file(struct file *file, | |
249 | const char __user *user_buf, size_t count, loff_t *ppos) | |
250 | { | |
251 | char buf[32]; | |
34e268d8 | 252 | size_t buf_size; |
2624d5fa MB |
253 | char *start = buf; |
254 | unsigned long reg, value; | |
2624d5fa | 255 | struct snd_soc_codec *codec = file->private_data; |
b785a492 | 256 | int ret; |
2624d5fa MB |
257 | |
258 | buf_size = min(count, (sizeof(buf)-1)); | |
259 | if (copy_from_user(buf, user_buf, buf_size)) | |
260 | return -EFAULT; | |
261 | buf[buf_size] = 0; | |
2624d5fa MB |
262 | |
263 | while (*start == ' ') | |
264 | start++; | |
265 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
266 | while (*start == ' ') |
267 | start++; | |
b785a492 JH |
268 | ret = kstrtoul(start, 16, &value); |
269 | if (ret) | |
270 | return ret; | |
0d51a9cb MB |
271 | |
272 | /* Userspace has been fiddling around behind the kernel's back */ | |
373d4d09 | 273 | add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE); |
0d51a9cb | 274 | |
e4f078d8 | 275 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
276 | return buf_size; |
277 | } | |
278 | ||
279 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 280 | .open = simple_open, |
2624d5fa MB |
281 | .read = codec_reg_read_file, |
282 | .write = codec_reg_write_file, | |
6038f373 | 283 | .llseek = default_llseek, |
2624d5fa MB |
284 | }; |
285 | ||
81c7cfd1 | 286 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 287 | { |
6553bf06 LPC |
288 | if (!component->card->debugfs_card_root) |
289 | return; | |
290 | ||
81c7cfd1 LPC |
291 | if (component->debugfs_prefix) { |
292 | char *name; | |
e73f3de5 | 293 | |
81c7cfd1 LPC |
294 | name = kasprintf(GFP_KERNEL, "%s:%s", |
295 | component->debugfs_prefix, component->name); | |
296 | if (name) { | |
297 | component->debugfs_root = debugfs_create_dir(name, | |
298 | component->card->debugfs_card_root); | |
299 | kfree(name); | |
300 | } | |
301 | } else { | |
302 | component->debugfs_root = debugfs_create_dir(component->name, | |
303 | component->card->debugfs_card_root); | |
304 | } | |
e73f3de5 | 305 | |
81c7cfd1 LPC |
306 | if (!component->debugfs_root) { |
307 | dev_warn(component->dev, | |
308 | "ASoC: Failed to create component debugfs directory\n"); | |
309 | return; | |
310 | } | |
e73f3de5 | 311 | |
81c7cfd1 LPC |
312 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
313 | component->debugfs_root); | |
e73f3de5 | 314 | |
81c7cfd1 LPC |
315 | if (component->init_debugfs) |
316 | component->init_debugfs(component); | |
e73f3de5 RK |
317 | } |
318 | ||
81c7cfd1 | 319 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 320 | { |
81c7cfd1 LPC |
321 | debugfs_remove_recursive(component->debugfs_root); |
322 | } | |
d6ce4cf3 | 323 | |
81c7cfd1 LPC |
324 | static void soc_init_codec_debugfs(struct snd_soc_component *component) |
325 | { | |
326 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2624d5fa MB |
327 | |
328 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
81c7cfd1 | 329 | codec->component.debugfs_root, |
2624d5fa MB |
330 | codec, &codec_reg_fops); |
331 | if (!codec->debugfs_reg) | |
10e8aa9a MM |
332 | dev_warn(codec->dev, |
333 | "ASoC: Failed to create codec register debugfs file\n"); | |
731f1ab2 SG |
334 | } |
335 | ||
c3c5a19a MB |
336 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
337 | size_t count, loff_t *ppos) | |
338 | { | |
339 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 340 | ssize_t len, ret = 0; |
c3c5a19a MB |
341 | struct snd_soc_codec *codec; |
342 | ||
343 | if (!buf) | |
344 | return -ENOMEM; | |
345 | ||
34e81ab4 LPC |
346 | mutex_lock(&client_mutex); |
347 | ||
2b194f9d MB |
348 | list_for_each_entry(codec, &codec_list, list) { |
349 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 350 | codec->component.name); |
2b194f9d MB |
351 | if (len >= 0) |
352 | ret += len; | |
353 | if (ret > PAGE_SIZE) { | |
354 | ret = PAGE_SIZE; | |
355 | break; | |
356 | } | |
357 | } | |
c3c5a19a | 358 | |
34e81ab4 LPC |
359 | mutex_unlock(&client_mutex); |
360 | ||
c3c5a19a MB |
361 | if (ret >= 0) |
362 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
363 | ||
364 | kfree(buf); | |
365 | ||
366 | return ret; | |
367 | } | |
368 | ||
369 | static const struct file_operations codec_list_fops = { | |
370 | .read = codec_list_read_file, | |
371 | .llseek = default_llseek,/* read accesses f_pos */ | |
372 | }; | |
373 | ||
f3208780 MB |
374 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
375 | size_t count, loff_t *ppos) | |
376 | { | |
377 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 378 | ssize_t len, ret = 0; |
1438c2f6 | 379 | struct snd_soc_component *component; |
f3208780 MB |
380 | struct snd_soc_dai *dai; |
381 | ||
382 | if (!buf) | |
383 | return -ENOMEM; | |
384 | ||
34e81ab4 LPC |
385 | mutex_lock(&client_mutex); |
386 | ||
1438c2f6 LPC |
387 | list_for_each_entry(component, &component_list, list) { |
388 | list_for_each_entry(dai, &component->dai_list, list) { | |
389 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
390 | dai->name); | |
391 | if (len >= 0) | |
392 | ret += len; | |
393 | if (ret > PAGE_SIZE) { | |
394 | ret = PAGE_SIZE; | |
395 | break; | |
396 | } | |
2b194f9d MB |
397 | } |
398 | } | |
f3208780 | 399 | |
34e81ab4 LPC |
400 | mutex_unlock(&client_mutex); |
401 | ||
2b194f9d | 402 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
403 | |
404 | kfree(buf); | |
405 | ||
406 | return ret; | |
407 | } | |
408 | ||
409 | static const struct file_operations dai_list_fops = { | |
410 | .read = dai_list_read_file, | |
411 | .llseek = default_llseek,/* read accesses f_pos */ | |
412 | }; | |
413 | ||
19c7ac27 MB |
414 | static ssize_t platform_list_read_file(struct file *file, |
415 | char __user *user_buf, | |
416 | size_t count, loff_t *ppos) | |
417 | { | |
418 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 419 | ssize_t len, ret = 0; |
19c7ac27 MB |
420 | struct snd_soc_platform *platform; |
421 | ||
422 | if (!buf) | |
423 | return -ENOMEM; | |
424 | ||
34e81ab4 LPC |
425 | mutex_lock(&client_mutex); |
426 | ||
2b194f9d MB |
427 | list_for_each_entry(platform, &platform_list, list) { |
428 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 429 | platform->component.name); |
2b194f9d MB |
430 | if (len >= 0) |
431 | ret += len; | |
432 | if (ret > PAGE_SIZE) { | |
433 | ret = PAGE_SIZE; | |
434 | break; | |
435 | } | |
436 | } | |
19c7ac27 | 437 | |
34e81ab4 LPC |
438 | mutex_unlock(&client_mutex); |
439 | ||
2b194f9d | 440 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
441 | |
442 | kfree(buf); | |
443 | ||
444 | return ret; | |
445 | } | |
446 | ||
447 | static const struct file_operations platform_list_fops = { | |
448 | .read = platform_list_read_file, | |
449 | .llseek = default_llseek,/* read accesses f_pos */ | |
450 | }; | |
451 | ||
a6052154 JN |
452 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
453 | { | |
6553bf06 LPC |
454 | if (!snd_soc_debugfs_root) |
455 | return; | |
456 | ||
a6052154 | 457 | card->debugfs_card_root = debugfs_create_dir(card->name, |
8a9dab1a | 458 | snd_soc_debugfs_root); |
3a45b867 | 459 | if (!card->debugfs_card_root) { |
a6052154 | 460 | dev_warn(card->dev, |
7c08be84 | 461 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
462 | return; |
463 | } | |
464 | ||
465 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
466 | card->debugfs_card_root, | |
467 | &card->pop_time); | |
468 | if (!card->debugfs_pop_time) | |
469 | dev_warn(card->dev, | |
f110bfc7 | 470 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
471 | } |
472 | ||
473 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
474 | { | |
475 | debugfs_remove_recursive(card->debugfs_card_root); | |
476 | } | |
477 | ||
6553bf06 LPC |
478 | |
479 | static void snd_soc_debugfs_init(void) | |
480 | { | |
481 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); | |
482 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
483 | pr_warn("ASoC: Failed to create debugfs directory\n"); | |
484 | snd_soc_debugfs_root = NULL; | |
485 | return; | |
486 | } | |
487 | ||
488 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, | |
489 | &codec_list_fops)) | |
490 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
491 | ||
492 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, | |
493 | &dai_list_fops)) | |
494 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
495 | ||
496 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, | |
497 | &platform_list_fops)) | |
498 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
499 | } | |
500 | ||
501 | static void snd_soc_debugfs_exit(void) | |
502 | { | |
503 | debugfs_remove_recursive(snd_soc_debugfs_root); | |
504 | } | |
505 | ||
2624d5fa MB |
506 | #else |
507 | ||
81c7cfd1 | 508 | #define soc_init_codec_debugfs NULL |
b95fccbc | 509 | |
81c7cfd1 LPC |
510 | static inline void soc_init_component_debugfs( |
511 | struct snd_soc_component *component) | |
731f1ab2 SG |
512 | { |
513 | } | |
514 | ||
81c7cfd1 LPC |
515 | static inline void soc_cleanup_component_debugfs( |
516 | struct snd_soc_component *component) | |
731f1ab2 SG |
517 | { |
518 | } | |
519 | ||
b95fccbc AL |
520 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
521 | { | |
522 | } | |
523 | ||
524 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
525 | { | |
526 | } | |
6553bf06 LPC |
527 | |
528 | static inline void snd_soc_debugfs_init(void) | |
529 | { | |
530 | } | |
531 | ||
532 | static inline void snd_soc_debugfs_exit(void) | |
533 | { | |
534 | } | |
535 | ||
2624d5fa MB |
536 | #endif |
537 | ||
47c88fff LG |
538 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
539 | const char *dai_link, int stream) | |
540 | { | |
1a497983 | 541 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 542 | |
1a497983 ML |
543 | list_for_each_entry(rtd, &card->rtd_list, list) { |
544 | if (rtd->dai_link->no_pcm && | |
545 | !strcmp(rtd->dai_link->name, dai_link)) | |
546 | return rtd->pcm->streams[stream].substream; | |
47c88fff | 547 | } |
f110bfc7 | 548 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
549 | return NULL; |
550 | } | |
551 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
552 | ||
1a497983 ML |
553 | static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( |
554 | struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) | |
555 | { | |
556 | struct snd_soc_pcm_runtime *rtd; | |
557 | ||
558 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
559 | if (!rtd) | |
560 | return NULL; | |
561 | ||
562 | rtd->card = card; | |
563 | rtd->dai_link = dai_link; | |
564 | rtd->codec_dais = kzalloc(sizeof(struct snd_soc_dai *) * | |
565 | dai_link->num_codecs, | |
566 | GFP_KERNEL); | |
567 | if (!rtd->codec_dais) { | |
568 | kfree(rtd); | |
569 | return NULL; | |
570 | } | |
571 | ||
572 | return rtd; | |
573 | } | |
574 | ||
575 | static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) | |
576 | { | |
577 | if (rtd && rtd->codec_dais) | |
578 | kfree(rtd->codec_dais); | |
579 | kfree(rtd); | |
580 | } | |
581 | ||
582 | static void soc_add_pcm_runtime(struct snd_soc_card *card, | |
583 | struct snd_soc_pcm_runtime *rtd) | |
584 | { | |
585 | list_add_tail(&rtd->list, &card->rtd_list); | |
586 | rtd->num = card->num_rtd; | |
587 | card->num_rtd++; | |
588 | } | |
589 | ||
590 | static void soc_remove_pcm_runtimes(struct snd_soc_card *card) | |
591 | { | |
592 | struct snd_soc_pcm_runtime *rtd, *_rtd; | |
593 | ||
594 | list_for_each_entry_safe(rtd, _rtd, &card->rtd_list, list) { | |
595 | list_del(&rtd->list); | |
596 | soc_free_pcm_runtime(rtd); | |
597 | } | |
598 | ||
599 | card->num_rtd = 0; | |
600 | } | |
601 | ||
47c88fff LG |
602 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, |
603 | const char *dai_link) | |
604 | { | |
1a497983 | 605 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 606 | |
1a497983 ML |
607 | list_for_each_entry(rtd, &card->rtd_list, list) { |
608 | if (!strcmp(rtd->dai_link->name, dai_link)) | |
609 | return rtd; | |
47c88fff | 610 | } |
f110bfc7 | 611 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
612 | return NULL; |
613 | } | |
614 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
615 | ||
9d58a077 RF |
616 | static void codec2codec_close_delayed_work(struct work_struct *work) |
617 | { | |
618 | /* Currently nothing to do for c2c links | |
619 | * Since c2c links are internal nodes in the DAPM graph and | |
620 | * don't interface with the outside world or application layer | |
621 | * we don't have to do any special handling on close. | |
622 | */ | |
623 | } | |
624 | ||
6f8ab4ac | 625 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 626 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 627 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 628 | { |
6f8ab4ac | 629 | struct snd_soc_card *card = dev_get_drvdata(dev); |
d9fc4063 | 630 | struct snd_soc_component *component; |
1a497983 ML |
631 | struct snd_soc_pcm_runtime *rtd; |
632 | int i; | |
db2a4165 | 633 | |
c5599b87 LPC |
634 | /* If the card is not initialized yet there is nothing to do */ |
635 | if (!card->instantiated) | |
e3509ff0 DM |
636 | return 0; |
637 | ||
6ed25978 AG |
638 | /* Due to the resume being scheduled into a workqueue we could |
639 | * suspend before that's finished - wait for it to complete. | |
640 | */ | |
f0fba2ad LG |
641 | snd_power_lock(card->snd_card); |
642 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
643 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
644 | |
645 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 646 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 647 | |
a00f90f9 | 648 | /* mute any active DACs */ |
1a497983 | 649 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 650 | |
1a497983 | 651 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
652 | continue; |
653 | ||
1a497983 ML |
654 | for (i = 0; i < rtd->num_codecs; i++) { |
655 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
656 | struct snd_soc_dai_driver *drv = dai->driver; |
657 | ||
658 | if (drv->ops->digital_mute && dai->playback_active) | |
659 | drv->ops->digital_mute(dai, 1); | |
660 | } | |
db2a4165 FM |
661 | } |
662 | ||
4ccab3e7 | 663 | /* suspend all pcms */ |
1a497983 ML |
664 | list_for_each_entry(rtd, &card->rtd_list, list) { |
665 | if (rtd->dai_link->ignore_suspend) | |
3efab7dc MB |
666 | continue; |
667 | ||
1a497983 | 668 | snd_pcm_suspend_all(rtd->pcm); |
3efab7dc | 669 | } |
4ccab3e7 | 670 | |
87506549 | 671 | if (card->suspend_pre) |
70b2ac12 | 672 | card->suspend_pre(card); |
db2a4165 | 673 | |
1a497983 ML |
674 | list_for_each_entry(rtd, &card->rtd_list, list) { |
675 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 676 | |
1a497983 | 677 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
678 | continue; |
679 | ||
bc263214 | 680 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 681 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
682 | } |
683 | ||
37660b6d | 684 | /* close any waiting streams */ |
1a497983 ML |
685 | list_for_each_entry(rtd, &card->rtd_list, list) |
686 | flush_delayed_work(&rtd->delayed_work); | |
db2a4165 | 687 | |
1a497983 | 688 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 689 | |
1a497983 | 690 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
691 | continue; |
692 | ||
1a497983 | 693 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 694 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 695 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 696 | |
1a497983 | 697 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 698 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 699 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
700 | } |
701 | ||
8be4da29 LPC |
702 | /* Recheck all endpoints too, their state is affected by suspend */ |
703 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
704 | snd_soc_dapm_sync(&card->dapm); |
705 | ||
9178feb4 | 706 | /* suspend all COMPONENTs */ |
d9fc4063 KM |
707 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
708 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); | |
d9fc4063 | 709 | |
9178feb4 | 710 | /* If there are paths active then the COMPONENT will be held with |
f0fba2ad | 711 | * bias _ON and should not be suspended. */ |
9178feb4 | 712 | if (!component->suspended) { |
4890140f | 713 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
f0fba2ad | 714 | case SND_SOC_BIAS_STANDBY: |
125a25da | 715 | /* |
9178feb4 | 716 | * If the COMPONENT is capable of idle |
125a25da MB |
717 | * bias off then being in STANDBY |
718 | * means it's doing something, | |
719 | * otherwise fall through. | |
720 | */ | |
4890140f | 721 | if (dapm->idle_bias_off) { |
9178feb4 | 722 | dev_dbg(component->dev, |
10e8aa9a | 723 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
724 | break; |
725 | } | |
a8093297 | 726 | |
f0fba2ad | 727 | case SND_SOC_BIAS_OFF: |
9178feb4 KM |
728 | if (component->suspend) |
729 | component->suspend(component); | |
730 | component->suspended = 1; | |
731 | if (component->regmap) | |
732 | regcache_mark_dirty(component->regmap); | |
988e8cc4 | 733 | /* deactivate pins to sleep state */ |
9178feb4 | 734 | pinctrl_pm_select_sleep_state(component->dev); |
f0fba2ad LG |
735 | break; |
736 | default: | |
9178feb4 KM |
737 | dev_dbg(component->dev, |
738 | "ASoC: COMPONENT is on over suspend\n"); | |
f0fba2ad LG |
739 | break; |
740 | } | |
1547aba9 MB |
741 | } |
742 | } | |
db2a4165 | 743 | |
1a497983 ML |
744 | list_for_each_entry(rtd, &card->rtd_list, list) { |
745 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 746 | |
1a497983 | 747 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
748 | continue; |
749 | ||
bc263214 | 750 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 751 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
752 | |
753 | /* deactivate pins to sleep state */ | |
754 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
755 | } |
756 | ||
87506549 | 757 | if (card->suspend_post) |
70b2ac12 | 758 | card->suspend_post(card); |
db2a4165 FM |
759 | |
760 | return 0; | |
761 | } | |
6f8ab4ac | 762 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 763 | |
6ed25978 AG |
764 | /* deferred resume work, so resume can complete before we finished |
765 | * setting our codec back up, which can be very slow on I2C | |
766 | */ | |
767 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 768 | { |
f0fba2ad LG |
769 | struct snd_soc_card *card = |
770 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1a497983 | 771 | struct snd_soc_pcm_runtime *rtd; |
d9fc4063 | 772 | struct snd_soc_component *component; |
1a497983 | 773 | int i; |
db2a4165 | 774 | |
6ed25978 AG |
775 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
776 | * so userspace apps are blocked from touching us | |
777 | */ | |
778 | ||
f110bfc7 | 779 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 780 | |
9949788b | 781 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 782 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 783 | |
87506549 | 784 | if (card->resume_pre) |
70b2ac12 | 785 | card->resume_pre(card); |
db2a4165 | 786 | |
bc263214 | 787 | /* resume control bus DAIs */ |
1a497983 ML |
788 | list_for_each_entry(rtd, &card->rtd_list, list) { |
789 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 790 | |
1a497983 | 791 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
792 | continue; |
793 | ||
bc263214 | 794 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
795 | cpu_dai->driver->resume(cpu_dai); |
796 | } | |
797 | ||
d9fc4063 | 798 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
9178feb4 KM |
799 | if (component->suspended) { |
800 | if (component->resume) | |
801 | component->resume(component); | |
802 | component->suspended = 0; | |
1547aba9 MB |
803 | } |
804 | } | |
db2a4165 | 805 | |
1a497983 | 806 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 807 | |
1a497983 | 808 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
809 | continue; |
810 | ||
1a497983 | 811 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 812 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 813 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 814 | |
1a497983 | 815 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 816 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 817 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
818 | } |
819 | ||
3ff3f64b | 820 | /* unmute any active DACs */ |
1a497983 | 821 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 822 | |
1a497983 | 823 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
824 | continue; |
825 | ||
1a497983 ML |
826 | for (i = 0; i < rtd->num_codecs; i++) { |
827 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
828 | struct snd_soc_dai_driver *drv = dai->driver; |
829 | ||
830 | if (drv->ops->digital_mute && dai->playback_active) | |
831 | drv->ops->digital_mute(dai, 0); | |
832 | } | |
db2a4165 FM |
833 | } |
834 | ||
1a497983 ML |
835 | list_for_each_entry(rtd, &card->rtd_list, list) { |
836 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 837 | |
1a497983 | 838 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
839 | continue; |
840 | ||
bc263214 | 841 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 842 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
843 | } |
844 | ||
87506549 | 845 | if (card->resume_post) |
70b2ac12 | 846 | card->resume_post(card); |
db2a4165 | 847 | |
f110bfc7 | 848 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 | 849 | |
8be4da29 LPC |
850 | /* Recheck all endpoints too, their state is affected by suspend */ |
851 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 852 | snd_soc_dapm_sync(&card->dapm); |
1a7aaa58 JK |
853 | |
854 | /* userspace can access us now we are back as we were before */ | |
855 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); | |
6ed25978 AG |
856 | } |
857 | ||
858 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 859 | int snd_soc_resume(struct device *dev) |
6ed25978 | 860 | { |
6f8ab4ac | 861 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 | 862 | bool bus_control = false; |
1a497983 | 863 | struct snd_soc_pcm_runtime *rtd; |
b9dd94a8 | 864 | |
c5599b87 LPC |
865 | /* If the card is not initialized yet there is nothing to do */ |
866 | if (!card->instantiated) | |
5ff1ddf2 EM |
867 | return 0; |
868 | ||
988e8cc4 | 869 | /* activate pins from sleep state */ |
1a497983 | 870 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
871 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
872 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
873 | int j; | |
874 | ||
988e8cc4 NC |
875 | if (cpu_dai->active) |
876 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
877 | |
878 | for (j = 0; j < rtd->num_codecs; j++) { | |
879 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
880 | if (codec_dai->active) | |
881 | pinctrl_pm_select_default_state(codec_dai->dev); | |
882 | } | |
988e8cc4 NC |
883 | } |
884 | ||
bc263214 LPC |
885 | /* |
886 | * DAIs that also act as the control bus master might have other drivers | |
887 | * hanging off them so need to resume immediately. Other drivers don't | |
888 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
889 | * due to I/O costs and anti-pop so handle them out of line. |
890 | */ | |
1a497983 ML |
891 | list_for_each_entry(rtd, &card->rtd_list, list) { |
892 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
bc263214 | 893 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 894 | } |
bc263214 LPC |
895 | if (bus_control) { |
896 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
897 | soc_resume_deferred(&card->deferred_resume_work); |
898 | } else { | |
f110bfc7 | 899 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 900 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 901 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 902 | } |
6ed25978 | 903 | |
db2a4165 FM |
904 | return 0; |
905 | } | |
6f8ab4ac | 906 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 907 | #else |
6f8ab4ac MB |
908 | #define snd_soc_suspend NULL |
909 | #define snd_soc_resume NULL | |
db2a4165 FM |
910 | #endif |
911 | ||
85e7652d | 912 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
913 | }; |
914 | ||
65d9361f LPC |
915 | static struct snd_soc_component *soc_find_component( |
916 | const struct device_node *of_node, const char *name) | |
12023a9a | 917 | { |
65d9361f | 918 | struct snd_soc_component *component; |
12023a9a | 919 | |
34e81ab4 LPC |
920 | lockdep_assert_held(&client_mutex); |
921 | ||
65d9361f LPC |
922 | list_for_each_entry(component, &component_list, list) { |
923 | if (of_node) { | |
924 | if (component->dev->of_node == of_node) | |
925 | return component; | |
926 | } else if (strcmp(component->name, name) == 0) { | |
927 | return component; | |
12023a9a | 928 | } |
12023a9a MLC |
929 | } |
930 | ||
931 | return NULL; | |
932 | } | |
933 | ||
fbb88b5c ML |
934 | /** |
935 | * snd_soc_find_dai - Find a registered DAI | |
936 | * | |
937 | * @dlc: name of the DAI and optional component info to match | |
938 | * | |
939 | * This function will search all regsitered components and their DAIs to | |
940 | * find the DAI of the same name. The component's of_node and name | |
941 | * should also match if being specified. | |
942 | * | |
943 | * Return: pointer of DAI, or NULL if not found. | |
944 | */ | |
305e9020 | 945 | struct snd_soc_dai *snd_soc_find_dai( |
14621c7e | 946 | const struct snd_soc_dai_link_component *dlc) |
12023a9a | 947 | { |
14621c7e LPC |
948 | struct snd_soc_component *component; |
949 | struct snd_soc_dai *dai; | |
3e0aa8d8 | 950 | struct device_node *component_of_node; |
12023a9a | 951 | |
34e81ab4 LPC |
952 | lockdep_assert_held(&client_mutex); |
953 | ||
14621c7e LPC |
954 | /* Find CPU DAI from registered DAIs*/ |
955 | list_for_each_entry(component, &component_list, list) { | |
3e0aa8d8 JS |
956 | component_of_node = component->dev->of_node; |
957 | if (!component_of_node && component->dev->parent) | |
958 | component_of_node = component->dev->parent->of_node; | |
959 | ||
960 | if (dlc->of_node && component_of_node != dlc->of_node) | |
14621c7e | 961 | continue; |
1ffae361 | 962 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
963 | continue; |
964 | list_for_each_entry(dai, &component->dai_list, list) { | |
965 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 966 | continue; |
12023a9a | 967 | |
14621c7e | 968 | return dai; |
12023a9a MLC |
969 | } |
970 | } | |
971 | ||
972 | return NULL; | |
973 | } | |
305e9020 | 974 | EXPORT_SYMBOL_GPL(snd_soc_find_dai); |
12023a9a | 975 | |
17fb1755 ML |
976 | |
977 | /** | |
978 | * snd_soc_find_dai_link - Find a DAI link | |
979 | * | |
980 | * @card: soc card | |
981 | * @id: DAI link ID to match | |
982 | * @name: DAI link name to match, optional | |
8abab35f | 983 | * @stream_name: DAI link stream name to match, optional |
17fb1755 ML |
984 | * |
985 | * This function will search all existing DAI links of the soc card to | |
986 | * find the link of the same ID. Since DAI links may not have their | |
987 | * unique ID, so name and stream name should also match if being | |
988 | * specified. | |
989 | * | |
990 | * Return: pointer of DAI link, or NULL if not found. | |
991 | */ | |
992 | struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, | |
993 | int id, const char *name, | |
994 | const char *stream_name) | |
995 | { | |
996 | struct snd_soc_dai_link *link, *_link; | |
997 | ||
998 | lockdep_assert_held(&client_mutex); | |
999 | ||
1000 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { | |
1001 | if (link->id != id) | |
1002 | continue; | |
1003 | ||
1004 | if (name && (!link->name || strcmp(name, link->name))) | |
1005 | continue; | |
1006 | ||
1007 | if (stream_name && (!link->stream_name | |
1008 | || strcmp(stream_name, link->stream_name))) | |
1009 | continue; | |
1010 | ||
1011 | return link; | |
1012 | } | |
1013 | ||
1014 | return NULL; | |
1015 | } | |
1016 | EXPORT_SYMBOL_GPL(snd_soc_find_dai_link); | |
1017 | ||
49a5ba1c ML |
1018 | static bool soc_is_dai_link_bound(struct snd_soc_card *card, |
1019 | struct snd_soc_dai_link *dai_link) | |
1020 | { | |
1021 | struct snd_soc_pcm_runtime *rtd; | |
1022 | ||
1023 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
1024 | if (rtd->dai_link == dai_link) | |
1025 | return true; | |
1026 | } | |
1027 | ||
1028 | return false; | |
1029 | } | |
1030 | ||
6f2f1ff0 ML |
1031 | static int soc_bind_dai_link(struct snd_soc_card *card, |
1032 | struct snd_soc_dai_link *dai_link) | |
db2a4165 | 1033 | { |
1a497983 | 1034 | struct snd_soc_pcm_runtime *rtd; |
88bd870f | 1035 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 1036 | struct snd_soc_dai_link_component cpu_dai_component; |
1a497983 | 1037 | struct snd_soc_dai **codec_dais; |
435c5e25 | 1038 | struct snd_soc_platform *platform; |
06859fca | 1039 | struct device_node *platform_of_node; |
848dd8be | 1040 | const char *platform_name; |
88bd870f | 1041 | int i; |
435c5e25 | 1042 | |
6f2f1ff0 | 1043 | dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); |
435c5e25 | 1044 | |
49a5ba1c ML |
1045 | if (soc_is_dai_link_bound(card, dai_link)) { |
1046 | dev_dbg(card->dev, "ASoC: dai link %s already bound\n", | |
1047 | dai_link->name); | |
1048 | return 0; | |
1049 | } | |
435c5e25 | 1050 | |
513cb311 SM |
1051 | rtd = soc_new_pcm_runtime(card, dai_link); |
1052 | if (!rtd) | |
1053 | return -ENOMEM; | |
1054 | ||
14621c7e LPC |
1055 | cpu_dai_component.name = dai_link->cpu_name; |
1056 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
1057 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
1058 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 1059 | if (!rtd->cpu_dai) { |
f110bfc7 | 1060 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b | 1061 | dai_link->cpu_dai_name); |
1a497983 | 1062 | goto _err_defer; |
f0fba2ad LG |
1063 | } |
1064 | ||
88bd870f | 1065 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 1066 | |
88bd870f | 1067 | /* Find CODEC from registered CODECs */ |
1a497983 | 1068 | codec_dais = rtd->codec_dais; |
88bd870f | 1069 | for (i = 0; i < rtd->num_codecs; i++) { |
14621c7e | 1070 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
1071 | if (!codec_dais[i]) { |
1072 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
1073 | codecs[i].dai_name); | |
1a497983 | 1074 | goto _err_defer; |
88bd870f | 1075 | } |
12023a9a MLC |
1076 | } |
1077 | ||
88bd870f BC |
1078 | /* Single codec links expect codec and codec_dai in runtime data */ |
1079 | rtd->codec_dai = codec_dais[0]; | |
1080 | rtd->codec = rtd->codec_dai->codec; | |
1081 | ||
848dd8be MB |
1082 | /* if there's no platform we match on the empty platform */ |
1083 | platform_name = dai_link->platform_name; | |
5a504963 | 1084 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
1085 | platform_name = "snd-soc-dummy"; |
1086 | ||
b19e6e7b | 1087 | /* find one from the set of registered platforms */ |
f0fba2ad | 1088 | list_for_each_entry(platform, &platform_list, list) { |
06859fca CK |
1089 | platform_of_node = platform->dev->of_node; |
1090 | if (!platform_of_node && platform->dev->parent->of_node) | |
1091 | platform_of_node = platform->dev->parent->of_node; | |
1092 | ||
5a504963 | 1093 | if (dai_link->platform_of_node) { |
06859fca | 1094 | if (platform_of_node != dai_link->platform_of_node) |
5a504963 SW |
1095 | continue; |
1096 | } else { | |
f4333203 | 1097 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
1098 | continue; |
1099 | } | |
2610ab77 SW |
1100 | |
1101 | rtd->platform = platform; | |
02a06d30 | 1102 | } |
b19e6e7b | 1103 | if (!rtd->platform) { |
f110bfc7 | 1104 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 1105 | dai_link->platform_name); |
70fcad49 | 1106 | goto _err_defer; |
f0fba2ad | 1107 | } |
b19e6e7b | 1108 | |
1a497983 | 1109 | soc_add_pcm_runtime(card, rtd); |
b19e6e7b | 1110 | return 0; |
1a497983 ML |
1111 | |
1112 | _err_defer: | |
1113 | soc_free_pcm_runtime(rtd); | |
1114 | return -EPROBE_DEFER; | |
f0fba2ad LG |
1115 | } |
1116 | ||
f1d45cc3 | 1117 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 1118 | { |
abd31b32 | 1119 | if (!component->card) |
70090bbb | 1120 | return; |
d12cd198 | 1121 | |
d9fc4063 | 1122 | list_del(&component->card_list); |
589c3563 | 1123 | |
f1d45cc3 LPC |
1124 | if (component->remove) |
1125 | component->remove(component); | |
589c3563 | 1126 | |
f1d45cc3 | 1127 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 1128 | |
f1d45cc3 | 1129 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1130 | component->card = NULL; |
f1d45cc3 | 1131 | module_put(component->dev->driver->owner); |
589c3563 JN |
1132 | } |
1133 | ||
e60cd14f | 1134 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 1135 | { |
f0fba2ad LG |
1136 | int err; |
1137 | ||
e60cd14f LPC |
1138 | if (dai && dai->probed && |
1139 | dai->driver->remove_order == order) { | |
1140 | if (dai->driver->remove) { | |
1141 | err = dai->driver->remove(dai); | |
f0fba2ad | 1142 | if (err < 0) |
e60cd14f | 1143 | dev_err(dai->dev, |
f110bfc7 | 1144 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 1145 | dai->name, err); |
6b05eda6 | 1146 | } |
e60cd14f | 1147 | dai->probed = 0; |
f0fba2ad | 1148 | } |
b0aa88af MLC |
1149 | } |
1150 | ||
1a497983 ML |
1151 | static void soc_remove_link_dais(struct snd_soc_card *card, |
1152 | struct snd_soc_pcm_runtime *rtd, int order) | |
b0aa88af | 1153 | { |
e60cd14f | 1154 | int i; |
b0aa88af MLC |
1155 | |
1156 | /* unregister the rtd device */ | |
1157 | if (rtd->dev_registered) { | |
b0aa88af MLC |
1158 | device_unregister(rtd->dev); |
1159 | rtd->dev_registered = 0; | |
1160 | } | |
1161 | ||
1162 | /* remove the CODEC DAI */ | |
88bd870f | 1163 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 1164 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 1165 | |
e60cd14f | 1166 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 1167 | } |
db2a4165 | 1168 | |
1a497983 ML |
1169 | static void soc_remove_link_components(struct snd_soc_card *card, |
1170 | struct snd_soc_pcm_runtime *rtd, int order) | |
62ae68fa | 1171 | { |
62ae68fa | 1172 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
62ae68fa | 1173 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1174 | struct snd_soc_component *component; |
88bd870f | 1175 | int i; |
62ae68fa SW |
1176 | |
1177 | /* remove the platform */ | |
70090bbb | 1178 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1179 | soc_remove_component(&platform->component); |
62ae68fa SW |
1180 | |
1181 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1182 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1183 | component = rtd->codec_dais[i]->component; |
70090bbb | 1184 | if (component->driver->remove_order == order) |
61aca564 | 1185 | soc_remove_component(component); |
62ae68fa SW |
1186 | } |
1187 | ||
1188 | /* remove any CPU-side CODEC */ | |
1189 | if (cpu_dai) { | |
70090bbb | 1190 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1191 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1192 | } |
1193 | } | |
1194 | ||
0671fd8e KM |
1195 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1196 | { | |
1a497983 ML |
1197 | int order; |
1198 | struct snd_soc_pcm_runtime *rtd; | |
f8f80361 | 1199 | struct snd_soc_dai_link *link, *_link; |
0671fd8e | 1200 | |
0168bf0d LG |
1201 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1202 | order++) { | |
1a497983 ML |
1203 | list_for_each_entry(rtd, &card->rtd_list, list) |
1204 | soc_remove_link_dais(card, rtd, order); | |
62ae68fa SW |
1205 | } |
1206 | ||
1207 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1208 | order++) { | |
1a497983 ML |
1209 | list_for_each_entry(rtd, &card->rtd_list, list) |
1210 | soc_remove_link_components(card, rtd, order); | |
0168bf0d | 1211 | } |
62ae68fa | 1212 | |
f8f80361 ML |
1213 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1214 | if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK) | |
1215 | dev_warn(card->dev, "Topology forgot to remove link %s?\n", | |
1216 | link->name); | |
1217 | ||
1218 | list_del(&link->list); | |
1219 | card->num_dai_links--; | |
1220 | } | |
0671fd8e KM |
1221 | } |
1222 | ||
923c5e61 ML |
1223 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
1224 | struct snd_soc_dai_link *dai_link) | |
1225 | { | |
1226 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
1227 | if (dai_link->codec_name || dai_link->codec_of_node || | |
1228 | dai_link->codec_dai_name) { | |
1229 | dai_link->num_codecs = 1; | |
1230 | ||
1231 | dai_link->codecs = devm_kzalloc(card->dev, | |
1232 | sizeof(struct snd_soc_dai_link_component), | |
1233 | GFP_KERNEL); | |
1234 | if (!dai_link->codecs) | |
1235 | return -ENOMEM; | |
1236 | ||
1237 | dai_link->codecs[0].name = dai_link->codec_name; | |
1238 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
1239 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
1240 | } | |
1241 | ||
1242 | if (!dai_link->codecs) { | |
1243 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
1244 | return -EINVAL; | |
1245 | } | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | static int soc_init_dai_link(struct snd_soc_card *card, | |
1251 | struct snd_soc_dai_link *link) | |
1252 | { | |
1253 | int i, ret; | |
1254 | ||
1255 | ret = snd_soc_init_multicodec(card, link); | |
1256 | if (ret) { | |
1257 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
1258 | return ret; | |
1259 | } | |
1260 | ||
1261 | for (i = 0; i < link->num_codecs; i++) { | |
1262 | /* | |
1263 | * Codec must be specified by 1 of name or OF node, | |
1264 | * not both or neither. | |
1265 | */ | |
1266 | if (!!link->codecs[i].name == | |
1267 | !!link->codecs[i].of_node) { | |
1268 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
1269 | link->name); | |
1270 | return -EINVAL; | |
1271 | } | |
1272 | /* Codec DAI name must be specified */ | |
1273 | if (!link->codecs[i].dai_name) { | |
1274 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
1275 | link->name); | |
1276 | return -EINVAL; | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | /* | |
1281 | * Platform may be specified by either name or OF node, but | |
1282 | * can be left unspecified, and a dummy platform will be used. | |
1283 | */ | |
1284 | if (link->platform_name && link->platform_of_node) { | |
1285 | dev_err(card->dev, | |
1286 | "ASoC: Both platform name/of_node are set for %s\n", | |
1287 | link->name); | |
1288 | return -EINVAL; | |
1289 | } | |
1290 | ||
1291 | /* | |
1292 | * CPU device may be specified by either name or OF node, but | |
1293 | * can be left unspecified, and will be matched based on DAI | |
1294 | * name alone.. | |
1295 | */ | |
1296 | if (link->cpu_name && link->cpu_of_node) { | |
1297 | dev_err(card->dev, | |
1298 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
1299 | link->name); | |
1300 | return -EINVAL; | |
1301 | } | |
1302 | /* | |
1303 | * At least one of CPU DAI name or CPU device name/node must be | |
1304 | * specified | |
1305 | */ | |
1306 | if (!link->cpu_dai_name && | |
1307 | !(link->cpu_name || link->cpu_of_node)) { | |
1308 | dev_err(card->dev, | |
1309 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
1310 | link->name); | |
1311 | return -EINVAL; | |
1312 | } | |
1313 | ||
1314 | return 0; | |
0671fd8e KM |
1315 | } |
1316 | ||
f8f80361 ML |
1317 | /** |
1318 | * snd_soc_add_dai_link - Add a DAI link dynamically | |
1319 | * @card: The ASoC card to which the DAI link is added | |
1320 | * @dai_link: The new DAI link to add | |
1321 | * | |
1322 | * This function adds a DAI link to the ASoC card's link list. | |
1323 | * | |
1324 | * Note: Topology can use this API to add DAI links when probing the | |
1325 | * topology component. And machine drivers can still define static | |
1326 | * DAI links in dai_link array. | |
1327 | */ | |
1328 | int snd_soc_add_dai_link(struct snd_soc_card *card, | |
1329 | struct snd_soc_dai_link *dai_link) | |
1330 | { | |
1331 | if (dai_link->dobj.type | |
1332 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1333 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1334 | dai_link->dobj.type); | |
1335 | return -EINVAL; | |
1336 | } | |
1337 | ||
1338 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1339 | /* Notify the machine driver for extra initialization |
1340 | * on the link created by topology. | |
1341 | */ | |
1342 | if (dai_link->dobj.type && card->add_dai_link) | |
1343 | card->add_dai_link(card, dai_link); | |
1344 | ||
f8f80361 ML |
1345 | list_add_tail(&dai_link->list, &card->dai_link_list); |
1346 | card->num_dai_links++; | |
1347 | ||
1348 | return 0; | |
1349 | } | |
1350 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_link); | |
1351 | ||
1352 | /** | |
1353 | * snd_soc_remove_dai_link - Remove a DAI link from the list | |
1354 | * @card: The ASoC card that owns the link | |
1355 | * @dai_link: The DAI link to remove | |
1356 | * | |
1357 | * This function removes a DAI link from the ASoC card's link list. | |
1358 | * | |
1359 | * For DAI links previously added by topology, topology should | |
1360 | * remove them by using the dobj embedded in the link. | |
1361 | */ | |
1362 | void snd_soc_remove_dai_link(struct snd_soc_card *card, | |
1363 | struct snd_soc_dai_link *dai_link) | |
1364 | { | |
1365 | struct snd_soc_dai_link *link, *_link; | |
1366 | ||
1367 | if (dai_link->dobj.type | |
1368 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1369 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1370 | dai_link->dobj.type); | |
1371 | return; | |
1372 | } | |
1373 | ||
1374 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1375 | /* Notify the machine driver for extra destruction |
1376 | * on the link created by topology. | |
1377 | */ | |
1378 | if (dai_link->dobj.type && card->remove_dai_link) | |
1379 | card->remove_dai_link(card, dai_link); | |
1380 | ||
f8f80361 ML |
1381 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1382 | if (link == dai_link) { | |
1383 | list_del(&link->list); | |
1384 | card->num_dai_links--; | |
1385 | return; | |
1386 | } | |
1387 | } | |
1388 | } | |
1389 | EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); | |
1390 | ||
ead9b919 | 1391 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1392 | struct snd_soc_component *component) |
ead9b919 JN |
1393 | { |
1394 | int i; | |
1395 | ||
ff819b83 | 1396 | if (card->codec_conf == NULL) |
ead9b919 JN |
1397 | return; |
1398 | ||
ff819b83 DP |
1399 | for (i = 0; i < card->num_configs; i++) { |
1400 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1401 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1402 | continue; |
94f99c87 | 1403 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1404 | continue; |
94f99c87 | 1405 | component->name_prefix = map->name_prefix; |
3ca041ed | 1406 | break; |
ead9b919 JN |
1407 | } |
1408 | } | |
1409 | ||
f1d45cc3 LPC |
1410 | static int soc_probe_component(struct snd_soc_card *card, |
1411 | struct snd_soc_component *component) | |
589c3563 | 1412 | { |
f1d45cc3 | 1413 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1414 | struct snd_soc_dai *dai; |
f1d45cc3 | 1415 | int ret; |
589c3563 | 1416 | |
1b7c1231 | 1417 | if (!strcmp(component->name, "snd-soc-dummy")) |
70090bbb | 1418 | return 0; |
589c3563 | 1419 | |
abd31b32 | 1420 | if (component->card) { |
1b7c1231 LPC |
1421 | if (component->card != card) { |
1422 | dev_err(component->dev, | |
1423 | "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", | |
1424 | card->name, component->card->name); | |
1425 | return -ENODEV; | |
1426 | } | |
1427 | return 0; | |
1428 | } | |
589c3563 | 1429 | |
f1d45cc3 | 1430 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1431 | return -ENODEV; |
1432 | ||
f1d45cc3 LPC |
1433 | component->card = card; |
1434 | dapm->card = card; | |
1435 | soc_set_name_prefix(card, component); | |
589c3563 | 1436 | |
f1d45cc3 | 1437 | soc_init_component_debugfs(component); |
d5d1e0be | 1438 | |
f1d45cc3 LPC |
1439 | if (component->dapm_widgets) { |
1440 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1441 | component->num_dapm_widgets); | |
b318ad50 NP |
1442 | |
1443 | if (ret != 0) { | |
f1d45cc3 | 1444 | dev_err(component->dev, |
b318ad50 NP |
1445 | "Failed to create new controls %d\n", ret); |
1446 | goto err_probe; | |
1447 | } | |
1448 | } | |
77530150 | 1449 | |
0634814f LPC |
1450 | list_for_each_entry(dai, &component->dai_list, list) { |
1451 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1452 | if (ret != 0) { |
0634814f | 1453 | dev_err(component->dev, |
261edc70 NP |
1454 | "Failed to create DAI widgets %d\n", ret); |
1455 | goto err_probe; | |
1456 | } | |
1457 | } | |
888df395 | 1458 | |
f1d45cc3 LPC |
1459 | if (component->probe) { |
1460 | ret = component->probe(component); | |
589c3563 | 1461 | if (ret < 0) { |
f1d45cc3 LPC |
1462 | dev_err(component->dev, |
1463 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1464 | goto err_probe; |
589c3563 | 1465 | } |
cb2cf612 | 1466 | |
f1d45cc3 LPC |
1467 | WARN(dapm->idle_bias_off && |
1468 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1469 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1470 | component->name); | |
be09ad90 LG |
1471 | } |
1472 | ||
f2ed6b07 ML |
1473 | /* machine specific init */ |
1474 | if (component->init) { | |
1475 | ret = component->init(component); | |
1476 | if (ret < 0) { | |
1477 | dev_err(component->dev, | |
1478 | "Failed to do machine specific init %d\n", ret); | |
1479 | goto err_probe; | |
1480 | } | |
1481 | } | |
1482 | ||
f1d45cc3 LPC |
1483 | if (component->controls) |
1484 | snd_soc_add_component_controls(component, component->controls, | |
1485 | component->num_controls); | |
1486 | if (component->dapm_routes) | |
1487 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1488 | component->num_dapm_routes); | |
3fec6b6d | 1489 | |
f1d45cc3 | 1490 | list_add(&dapm->list, &card->dapm_list); |
d9fc4063 | 1491 | list_add(&component->card_list, &card->component_dev_list); |
956245e9 LG |
1492 | |
1493 | return 0; | |
1494 | ||
1495 | err_probe: | |
f1d45cc3 | 1496 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1497 | component->card = NULL; |
f1d45cc3 | 1498 | module_put(component->dev->driver->owner); |
956245e9 LG |
1499 | |
1500 | return ret; | |
1501 | } | |
1502 | ||
36ae1a96 MB |
1503 | static void rtd_release(struct device *dev) |
1504 | { | |
1505 | kfree(dev); | |
1506 | } | |
f0fba2ad | 1507 | |
5f3484ac LPC |
1508 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1509 | const char *name) | |
503ae5e0 | 1510 | { |
589c3563 JN |
1511 | int ret = 0; |
1512 | ||
589c3563 | 1513 | /* register the rtd device */ |
36ae1a96 MB |
1514 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1515 | if (!rtd->dev) | |
1516 | return -ENOMEM; | |
1517 | device_initialize(rtd->dev); | |
5f3484ac | 1518 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1519 | rtd->dev->release = rtd_release; |
d29697dc | 1520 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1521 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1522 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1523 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1524 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1525 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1526 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1527 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1528 | ret = device_add(rtd->dev); |
589c3563 | 1529 | if (ret < 0) { |
865df9cb CL |
1530 | /* calling put_device() here to free the rtd->dev */ |
1531 | put_device(rtd->dev); | |
5f3484ac | 1532 | dev_err(rtd->card->dev, |
f110bfc7 | 1533 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1534 | return ret; |
1535 | } | |
1536 | rtd->dev_registered = 1; | |
589c3563 JN |
1537 | return 0; |
1538 | } | |
1539 | ||
1a497983 ML |
1540 | static int soc_probe_link_components(struct snd_soc_card *card, |
1541 | struct snd_soc_pcm_runtime *rtd, | |
62ae68fa SW |
1542 | int order) |
1543 | { | |
62ae68fa | 1544 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1545 | struct snd_soc_component *component; |
88bd870f | 1546 | int i, ret; |
62ae68fa SW |
1547 | |
1548 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1549 | component = rtd->cpu_dai->component; |
70090bbb | 1550 | if (component->driver->probe_order == order) { |
61aca564 | 1551 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1552 | if (ret < 0) |
1553 | return ret; | |
1554 | } | |
1555 | ||
88bd870f BC |
1556 | /* probe the CODEC-side components */ |
1557 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1558 | component = rtd->codec_dais[i]->component; |
70090bbb | 1559 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1560 | ret = soc_probe_component(card, component); |
88bd870f BC |
1561 | if (ret < 0) |
1562 | return ret; | |
1563 | } | |
62ae68fa SW |
1564 | } |
1565 | ||
1566 | /* probe the platform */ | |
70090bbb | 1567 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1568 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1569 | if (ret < 0) |
1570 | return ret; | |
1571 | } | |
1572 | ||
1573 | return 0; | |
1574 | } | |
1575 | ||
8e2be562 | 1576 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1577 | { |
1578 | int ret; | |
1579 | ||
8e2be562 LPC |
1580 | if (!dai->probed && dai->driver->probe_order == order) { |
1581 | if (dai->driver->probe) { | |
1582 | ret = dai->driver->probe(dai); | |
b0aa88af | 1583 | if (ret < 0) { |
8e2be562 LPC |
1584 | dev_err(dai->dev, |
1585 | "ASoC: failed to probe DAI %s: %d\n", | |
1586 | dai->name, ret); | |
b0aa88af MLC |
1587 | return ret; |
1588 | } | |
1589 | } | |
1590 | ||
8e2be562 | 1591 | dai->probed = 1; |
b0aa88af MLC |
1592 | } |
1593 | ||
1594 | return 0; | |
1595 | } | |
1596 | ||
25f7b701 AP |
1597 | static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais, |
1598 | struct snd_soc_pcm_runtime *rtd) | |
1599 | { | |
1600 | int i, ret = 0; | |
1601 | ||
1602 | for (i = 0; i < num_dais; ++i) { | |
1603 | struct snd_soc_dai_driver *drv = dais[i]->driver; | |
1604 | ||
1605 | if (!rtd->dai_link->no_pcm && drv->pcm_new) | |
1606 | ret = drv->pcm_new(rtd, dais[i]); | |
1607 | if (ret < 0) { | |
1608 | dev_err(dais[i]->dev, | |
1609 | "ASoC: Failed to bind %s with pcm device\n", | |
1610 | dais[i]->name); | |
1611 | return ret; | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | return 0; | |
1616 | } | |
1617 | ||
2436a723 MLC |
1618 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1619 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1620 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1621 | { |
3f901a02 BC |
1622 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1623 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
3de7c420 | 1624 | struct snd_soc_dapm_widget *sink, *source; |
2436a723 MLC |
1625 | int ret; |
1626 | ||
88bd870f BC |
1627 | if (rtd->num_codecs > 1) |
1628 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1629 | ||
2436a723 | 1630 | /* link the DAI widgets */ |
3de7c420 VK |
1631 | sink = codec_dai->playback_widget; |
1632 | source = cpu_dai->capture_widget; | |
1633 | if (sink && source) { | |
2436a723 | 1634 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1635 | dai_link->num_params, |
1636 | source, sink); | |
2436a723 MLC |
1637 | if (ret != 0) { |
1638 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1639 | sink->name, source->name, ret); |
2436a723 MLC |
1640 | return ret; |
1641 | } | |
1642 | } | |
1643 | ||
3de7c420 VK |
1644 | sink = cpu_dai->playback_widget; |
1645 | source = codec_dai->capture_widget; | |
1646 | if (sink && source) { | |
2436a723 | 1647 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1648 | dai_link->num_params, |
1649 | source, sink); | |
2436a723 MLC |
1650 | if (ret != 0) { |
1651 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1652 | sink->name, source->name, ret); |
2436a723 MLC |
1653 | return ret; |
1654 | } | |
1655 | } | |
1656 | ||
1657 | return 0; | |
1658 | } | |
1659 | ||
1a497983 ML |
1660 | static int soc_probe_link_dais(struct snd_soc_card *card, |
1661 | struct snd_soc_pcm_runtime *rtd, int order) | |
f0fba2ad | 1662 | { |
1a497983 | 1663 | struct snd_soc_dai_link *dai_link = rtd->dai_link; |
c74184ed | 1664 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1665 | int i, ret; |
f0fba2ad | 1666 | |
f110bfc7 | 1667 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
1a497983 | 1668 | card->name, rtd->num, order); |
f0fba2ad | 1669 | |
f0fba2ad LG |
1670 | /* set default power off timeout */ |
1671 | rtd->pmdown_time = pmdown_time; | |
1672 | ||
8e2be562 LPC |
1673 | ret = soc_probe_dai(cpu_dai, order); |
1674 | if (ret) | |
1675 | return ret; | |
db2a4165 | 1676 | |
f0fba2ad | 1677 | /* probe the CODEC DAI */ |
88bd870f | 1678 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1679 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1680 | if (ret) |
1681 | return ret; | |
1682 | } | |
fe3e78e0 | 1683 | |
0168bf0d LG |
1684 | /* complete DAI probe during last probe */ |
1685 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1686 | return 0; | |
1687 | ||
5f3484ac LPC |
1688 | /* do machine specific initialization */ |
1689 | if (dai_link->init) { | |
1690 | ret = dai_link->init(rtd); | |
1691 | if (ret < 0) { | |
1692 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1693 | dai_link->name, ret); | |
1694 | return ret; | |
1695 | } | |
1696 | } | |
1697 | ||
a5053a8e KM |
1698 | if (dai_link->dai_fmt) |
1699 | snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1700 | ||
5f3484ac | 1701 | ret = soc_post_component_init(rtd, dai_link->name); |
589c3563 | 1702 | if (ret) |
f0fba2ad | 1703 | return ret; |
fe3e78e0 | 1704 | |
5f3484ac LPC |
1705 | #ifdef CONFIG_DEBUG_FS |
1706 | /* add DPCM sysfs entries */ | |
2e55b90a LPC |
1707 | if (dai_link->dynamic) |
1708 | soc_dpcm_debugfs_add(rtd); | |
5f3484ac LPC |
1709 | #endif |
1710 | ||
6f0c4226 | 1711 | if (cpu_dai->driver->compress_new) { |
1245b700 | 1712 | /*create compress_device"*/ |
1a497983 | 1713 | ret = cpu_dai->driver->compress_new(rtd, rtd->num); |
c74184ed | 1714 | if (ret < 0) { |
f110bfc7 | 1715 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1716 | dai_link->stream_name); |
c74184ed MB |
1717 | return ret; |
1718 | } | |
1719 | } else { | |
1245b700 NK |
1720 | |
1721 | if (!dai_link->params) { | |
1722 | /* create the pcm */ | |
1a497983 | 1723 | ret = soc_new_pcm(rtd, rtd->num); |
1245b700 | 1724 | if (ret < 0) { |
f110bfc7 | 1725 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1726 | dai_link->stream_name, ret); |
c74184ed MB |
1727 | return ret; |
1728 | } | |
25f7b701 AP |
1729 | ret = soc_link_dai_pcm_new(&cpu_dai, 1, rtd); |
1730 | if (ret < 0) | |
1731 | return ret; | |
1732 | ret = soc_link_dai_pcm_new(rtd->codec_dais, | |
1733 | rtd->num_codecs, rtd); | |
1734 | if (ret < 0) | |
1735 | return ret; | |
1245b700 | 1736 | } else { |
9d58a077 RF |
1737 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1738 | codec2codec_close_delayed_work); | |
1739 | ||
1245b700 | 1740 | /* link the DAI widgets */ |
3f901a02 | 1741 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1742 | if (ret) |
1743 | return ret; | |
c74184ed | 1744 | } |
f0fba2ad LG |
1745 | } |
1746 | ||
f0fba2ad LG |
1747 | return 0; |
1748 | } | |
1749 | ||
44c69bb1 | 1750 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed SR |
1751 | { |
1752 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
f2ed6b07 ML |
1753 | struct snd_soc_component *component; |
1754 | const char *name; | |
1755 | struct device_node *codec_of_node; | |
1756 | ||
1757 | if (aux_dev->codec_of_node || aux_dev->codec_name) { | |
1758 | /* codecs, usually analog devices */ | |
1759 | name = aux_dev->codec_name; | |
1760 | codec_of_node = aux_dev->codec_of_node; | |
1761 | component = soc_find_component(codec_of_node, name); | |
1762 | if (!component) { | |
1763 | if (codec_of_node) | |
1764 | name = of_node_full_name(codec_of_node); | |
1765 | goto err_defer; | |
1766 | } | |
1767 | } else if (aux_dev->name) { | |
1768 | /* generic components */ | |
1769 | name = aux_dev->name; | |
1770 | component = soc_find_component(NULL, name); | |
1771 | if (!component) | |
1772 | goto err_defer; | |
1773 | } else { | |
1774 | dev_err(card->dev, "ASoC: Invalid auxiliary device\n"); | |
1775 | return -EINVAL; | |
3ca041ed | 1776 | } |
fb099cb7 | 1777 | |
f2ed6b07 | 1778 | component->init = aux_dev->init; |
1a653aa4 | 1779 | component->auxiliary = 1; |
d2e3a135 | 1780 | list_add(&component->card_aux_list, &card->aux_comp_list); |
1a653aa4 | 1781 | |
44c69bb1 | 1782 | return 0; |
f2ed6b07 ML |
1783 | |
1784 | err_defer: | |
1785 | dev_err(card->dev, "ASoC: %s not registered\n", name); | |
1786 | return -EPROBE_DEFER; | |
b19e6e7b MB |
1787 | } |
1788 | ||
f2ed6b07 | 1789 | static int soc_probe_aux_devices(struct snd_soc_card *card) |
2eea392d | 1790 | { |
d2e3a135 | 1791 | struct snd_soc_component *comp, *tmp; |
f2ed6b07 | 1792 | int order; |
44c69bb1 | 1793 | int ret; |
3ca041ed | 1794 | |
f2ed6b07 ML |
1795 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1796 | order++) { | |
d2e3a135 SN |
1797 | list_for_each_entry_safe(comp, tmp, &card->aux_comp_list, |
1798 | card_aux_list) { | |
f2ed6b07 ML |
1799 | if (comp->driver->probe_order == order) { |
1800 | ret = soc_probe_component(card, comp); | |
1801 | if (ret < 0) { | |
1802 | dev_err(card->dev, | |
1803 | "ASoC: failed to probe aux component %s %d\n", | |
1804 | comp->name, ret); | |
1805 | return ret; | |
1806 | } | |
d2e3a135 | 1807 | list_del(&comp->card_aux_list); |
f2ed6b07 | 1808 | } |
5f3484ac LPC |
1809 | } |
1810 | } | |
2eea392d | 1811 | |
f2ed6b07 | 1812 | return 0; |
2eea392d JN |
1813 | } |
1814 | ||
f2ed6b07 | 1815 | static void soc_remove_aux_devices(struct snd_soc_card *card) |
2eea392d | 1816 | { |
f2ed6b07 ML |
1817 | struct snd_soc_component *comp, *_comp; |
1818 | int order; | |
2eea392d | 1819 | |
f2ed6b07 ML |
1820 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1821 | order++) { | |
1822 | list_for_each_entry_safe(comp, _comp, | |
1a653aa4 KM |
1823 | &card->component_dev_list, card_list) { |
1824 | ||
1825 | if (!comp->auxiliary) | |
1826 | continue; | |
1827 | ||
f2ed6b07 ML |
1828 | if (comp->driver->remove_order == order) { |
1829 | soc_remove_component(comp); | |
1a653aa4 | 1830 | comp->auxiliary = 0; |
f2ed6b07 ML |
1831 | } |
1832 | } | |
2eea392d | 1833 | } |
2eea392d JN |
1834 | } |
1835 | ||
f90fb3f7 | 1836 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1837 | { |
1838 | int ret; | |
1839 | ||
1840 | if (codec->cache_init) | |
1841 | return 0; | |
1842 | ||
fdf0f54d DP |
1843 | ret = snd_soc_cache_init(codec); |
1844 | if (ret < 0) { | |
10e8aa9a MM |
1845 | dev_err(codec->dev, |
1846 | "ASoC: Failed to set cache compression type: %d\n", | |
1847 | ret); | |
fdf0f54d DP |
1848 | return ret; |
1849 | } | |
1850 | codec->cache_init = 1; | |
1851 | return 0; | |
1852 | } | |
1853 | ||
ce64c8b9 LPC |
1854 | /** |
1855 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1856 | * @rtd: The runtime for which the DAI link format should be changed | |
1857 | * @dai_fmt: The new DAI link format | |
1858 | * | |
1859 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1860 | * link for the specified runtime. | |
1861 | * | |
1862 | * Note: For setups with a static format set the dai_fmt field in the | |
1863 | * corresponding snd_dai_link struct instead of using this function. | |
1864 | * | |
1865 | * Returns 0 on success, otherwise a negative error code. | |
1866 | */ | |
1867 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1868 | unsigned int dai_fmt) | |
1869 | { | |
1870 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1871 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1872 | unsigned int i; | |
1873 | int ret; | |
1874 | ||
1875 | for (i = 0; i < rtd->num_codecs; i++) { | |
1876 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1877 | ||
1878 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1879 | if (ret != 0 && ret != -ENOTSUPP) { | |
1880 | dev_warn(codec_dai->dev, | |
1881 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1882 | return ret; | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1887 | if (cpu_dai->codec) { | |
1888 | unsigned int inv_dai_fmt; | |
1889 | ||
1890 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1891 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1892 | case SND_SOC_DAIFMT_CBM_CFM: | |
1893 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1894 | break; | |
1895 | case SND_SOC_DAIFMT_CBM_CFS: | |
1896 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1897 | break; | |
1898 | case SND_SOC_DAIFMT_CBS_CFM: | |
1899 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1900 | break; | |
1901 | case SND_SOC_DAIFMT_CBS_CFS: | |
1902 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1903 | break; | |
1904 | } | |
1905 | ||
1906 | dai_fmt = inv_dai_fmt; | |
1907 | } | |
1908 | ||
1909 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1910 | if (ret != 0 && ret != -ENOTSUPP) { | |
1911 | dev_warn(cpu_dai->dev, | |
1912 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1913 | return ret; | |
1914 | } | |
1915 | ||
1916 | return 0; | |
1917 | } | |
ddaca25a | 1918 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1919 | |
345233d7 | 1920 | |
1f5a4535 | 1921 | #ifdef CONFIG_DMI |
345233d7 LG |
1922 | /* Trim special characters, and replace '-' with '_' since '-' is used to |
1923 | * separate different DMI fields in the card long name. Only number and | |
1924 | * alphabet characters and a few separator characters are kept. | |
1925 | */ | |
1926 | static void cleanup_dmi_name(char *name) | |
1927 | { | |
1928 | int i, j = 0; | |
1929 | ||
1930 | for (i = 0; name[i]; i++) { | |
1931 | if (isalnum(name[i]) || (name[i] == '.') | |
1932 | || (name[i] == '_')) | |
1933 | name[j++] = name[i]; | |
1934 | else if (name[i] == '-') | |
1935 | name[j++] = '_'; | |
1936 | } | |
1937 | ||
1938 | name[j] = '\0'; | |
1939 | } | |
1940 | ||
1941 | /** | |
1942 | * snd_soc_set_dmi_name() - Register DMI names to card | |
1943 | * @card: The card to register DMI names | |
1944 | * @flavour: The flavour "differentiator" for the card amongst its peers. | |
1945 | * | |
1946 | * An Intel machine driver may be used by many different devices but are | |
1947 | * difficult for userspace to differentiate, since machine drivers ususally | |
1948 | * use their own name as the card short name and leave the card long name | |
1949 | * blank. To differentiate such devices and fix bugs due to lack of | |
1950 | * device-specific configurations, this function allows DMI info to be used | |
1951 | * as the sound card long name, in the format of | |
1952 | * "vendor-product-version-board" | |
1953 | * (Character '-' is used to separate different DMI fields here). | |
1954 | * This will help the user space to load the device-specific Use Case Manager | |
1955 | * (UCM) configurations for the card. | |
1956 | * | |
1957 | * Possible card long names may be: | |
1958 | * DellInc.-XPS139343-01-0310JH | |
1959 | * ASUSTeKCOMPUTERINC.-T100TA-1.0-T100TA | |
1960 | * Circuitco-MinnowboardMaxD0PLATFORM-D0-MinnowBoardMAX | |
1961 | * | |
1962 | * This function also supports flavoring the card longname to provide | |
1963 | * the extra differentiation, like "vendor-product-version-board-flavor". | |
1964 | * | |
1965 | * We only keep number and alphabet characters and a few separator characters | |
1966 | * in the card long name since UCM in the user space uses the card long names | |
1967 | * as card configuration directory names and AudoConf cannot support special | |
1968 | * charactors like SPACE. | |
1969 | * | |
1970 | * Returns 0 on success, otherwise a negative error code. | |
1971 | */ | |
1972 | int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) | |
1973 | { | |
1974 | const char *vendor, *product, *product_version, *board; | |
1975 | size_t longname_buf_size = sizeof(card->snd_card->longname); | |
1976 | size_t len; | |
1977 | ||
1978 | if (card->long_name) | |
1979 | return 0; /* long name already set by driver or from DMI */ | |
1980 | ||
1981 | /* make up dmi long name as: vendor.product.version.board */ | |
1982 | vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
1983 | if (!vendor) { | |
1984 | dev_warn(card->dev, "ASoC: no DMI vendor name!\n"); | |
1985 | return 0; | |
1986 | } | |
1987 | ||
1988 | snprintf(card->dmi_longname, sizeof(card->snd_card->longname), | |
1989 | "%s", vendor); | |
1990 | cleanup_dmi_name(card->dmi_longname); | |
1991 | ||
1992 | product = dmi_get_system_info(DMI_PRODUCT_NAME); | |
1993 | if (product) { | |
1994 | len = strlen(card->dmi_longname); | |
1995 | snprintf(card->dmi_longname + len, | |
1996 | longname_buf_size - len, | |
1997 | "-%s", product); | |
1998 | ||
1999 | len++; /* skip the separator "-" */ | |
2000 | if (len < longname_buf_size) | |
2001 | cleanup_dmi_name(card->dmi_longname + len); | |
2002 | ||
2003 | /* some vendors like Lenovo may only put a self-explanatory | |
2004 | * name in the product version field | |
2005 | */ | |
2006 | product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); | |
2007 | if (product_version) { | |
2008 | len = strlen(card->dmi_longname); | |
2009 | snprintf(card->dmi_longname + len, | |
2010 | longname_buf_size - len, | |
2011 | "-%s", product_version); | |
2012 | ||
2013 | len++; | |
2014 | if (len < longname_buf_size) | |
2015 | cleanup_dmi_name(card->dmi_longname + len); | |
2016 | } | |
2017 | } | |
2018 | ||
2019 | board = dmi_get_system_info(DMI_BOARD_NAME); | |
2020 | if (board) { | |
2021 | len = strlen(card->dmi_longname); | |
2022 | snprintf(card->dmi_longname + len, | |
2023 | longname_buf_size - len, | |
2024 | "-%s", board); | |
2025 | ||
2026 | len++; | |
2027 | if (len < longname_buf_size) | |
2028 | cleanup_dmi_name(card->dmi_longname + len); | |
2029 | } else if (!product) { | |
2030 | /* fall back to using legacy name */ | |
2031 | dev_warn(card->dev, "ASoC: no DMI board/product name!\n"); | |
2032 | return 0; | |
2033 | } | |
2034 | ||
2035 | /* Add flavour to dmi long name */ | |
2036 | if (flavour) { | |
2037 | len = strlen(card->dmi_longname); | |
2038 | snprintf(card->dmi_longname + len, | |
2039 | longname_buf_size - len, | |
2040 | "-%s", flavour); | |
2041 | ||
2042 | len++; | |
2043 | if (len < longname_buf_size) | |
2044 | cleanup_dmi_name(card->dmi_longname + len); | |
2045 | } | |
2046 | ||
2047 | /* set the card long name */ | |
2048 | card->long_name = card->dmi_longname; | |
2049 | ||
2050 | return 0; | |
2051 | } | |
2052 | EXPORT_SYMBOL_GPL(snd_soc_set_dmi_name); | |
1f5a4535 | 2053 | #endif /* CONFIG_DMI */ |
345233d7 | 2054 | |
b19e6e7b | 2055 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 2056 | { |
fdf0f54d | 2057 | struct snd_soc_codec *codec; |
1a497983 | 2058 | struct snd_soc_pcm_runtime *rtd; |
61b0088b | 2059 | struct snd_soc_dai_link *dai_link; |
ce64c8b9 | 2060 | int ret, i, order; |
fe3e78e0 | 2061 | |
34e81ab4 | 2062 | mutex_lock(&client_mutex); |
01b9d99a | 2063 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 2064 | |
f0fba2ad | 2065 | /* bind DAIs */ |
b19e6e7b | 2066 | for (i = 0; i < card->num_links; i++) { |
6f2f1ff0 | 2067 | ret = soc_bind_dai_link(card, &card->dai_link[i]); |
b19e6e7b MB |
2068 | if (ret != 0) |
2069 | goto base_error; | |
2070 | } | |
fe3e78e0 | 2071 | |
44c69bb1 | 2072 | /* bind aux_devs too */ |
b19e6e7b | 2073 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 2074 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
2075 | if (ret != 0) |
2076 | goto base_error; | |
f0fba2ad | 2077 | } |
435c5e25 | 2078 | |
f8f80361 ML |
2079 | /* add predefined DAI links to the list */ |
2080 | for (i = 0; i < card->num_links; i++) | |
2081 | snd_soc_add_dai_link(card, card->dai_link+i); | |
2082 | ||
fdf0f54d DP |
2083 | /* initialize the register cache for each available codec */ |
2084 | list_for_each_entry(codec, &codec_list, list) { | |
2085 | if (codec->cache_init) | |
2086 | continue; | |
f90fb3f7 | 2087 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
2088 | if (ret < 0) |
2089 | goto base_error; | |
fdf0f54d DP |
2090 | } |
2091 | ||
f0fba2ad | 2092 | /* card bind complete so register a sound card */ |
102b5a8d | 2093 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
2094 | card->owner, 0, &card->snd_card); |
2095 | if (ret < 0) { | |
10e8aa9a MM |
2096 | dev_err(card->dev, |
2097 | "ASoC: can't create sound card for card %s: %d\n", | |
2098 | card->name, ret); | |
b19e6e7b | 2099 | goto base_error; |
f0fba2ad | 2100 | } |
f0fba2ad | 2101 | |
0757d834 LPC |
2102 | soc_init_card_debugfs(card); |
2103 | ||
e37a4970 MB |
2104 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
2105 | card->dapm.dev = card->dev; | |
2106 | card->dapm.card = card; | |
2107 | list_add(&card->dapm.list, &card->dapm_list); | |
2108 | ||
d5d1e0be LPC |
2109 | #ifdef CONFIG_DEBUG_FS |
2110 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
2111 | #endif | |
2112 | ||
88ee1c61 | 2113 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
2114 | /* deferred resume work */ |
2115 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
2116 | #endif | |
db2a4165 | 2117 | |
9a841ebb MB |
2118 | if (card->dapm_widgets) |
2119 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
2120 | card->num_dapm_widgets); | |
2121 | ||
f23e860e NC |
2122 | if (card->of_dapm_widgets) |
2123 | snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, | |
2124 | card->num_of_dapm_widgets); | |
2125 | ||
f0fba2ad LG |
2126 | /* initialise the sound card only once */ |
2127 | if (card->probe) { | |
e7361ec4 | 2128 | ret = card->probe(card); |
f0fba2ad LG |
2129 | if (ret < 0) |
2130 | goto card_probe_error; | |
2131 | } | |
fe3e78e0 | 2132 | |
62ae68fa | 2133 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
2134 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
2135 | order++) { | |
1a497983 ML |
2136 | list_for_each_entry(rtd, &card->rtd_list, list) { |
2137 | ret = soc_probe_link_components(card, rtd, order); | |
0168bf0d | 2138 | if (ret < 0) { |
f110bfc7 LG |
2139 | dev_err(card->dev, |
2140 | "ASoC: failed to instantiate card %d\n", | |
2141 | ret); | |
62ae68fa SW |
2142 | goto probe_dai_err; |
2143 | } | |
2144 | } | |
2145 | } | |
2146 | ||
f2ed6b07 ML |
2147 | /* probe auxiliary components */ |
2148 | ret = soc_probe_aux_devices(card); | |
2149 | if (ret < 0) | |
2150 | goto probe_dai_err; | |
2151 | ||
61b0088b ML |
2152 | /* Find new DAI links added during probing components and bind them. |
2153 | * Components with topology may bring new DAIs and DAI links. | |
2154 | */ | |
2155 | list_for_each_entry(dai_link, &card->dai_link_list, list) { | |
2156 | if (soc_is_dai_link_bound(card, dai_link)) | |
2157 | continue; | |
2158 | ||
2159 | ret = soc_init_dai_link(card, dai_link); | |
2160 | if (ret) | |
2161 | goto probe_dai_err; | |
2162 | ret = soc_bind_dai_link(card, dai_link); | |
2163 | if (ret) | |
2164 | goto probe_dai_err; | |
2165 | } | |
2166 | ||
62ae68fa SW |
2167 | /* probe all DAI links on this card */ |
2168 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
2169 | order++) { | |
1a497983 ML |
2170 | list_for_each_entry(rtd, &card->rtd_list, list) { |
2171 | ret = soc_probe_link_dais(card, rtd, order); | |
62ae68fa | 2172 | if (ret < 0) { |
f110bfc7 LG |
2173 | dev_err(card->dev, |
2174 | "ASoC: failed to instantiate card %d\n", | |
2175 | ret); | |
0168bf0d LG |
2176 | goto probe_dai_err; |
2177 | } | |
f0fba2ad LG |
2178 | } |
2179 | } | |
db2a4165 | 2180 | |
888df395 | 2181 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 2182 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 2183 | |
b7af1daf | 2184 | if (card->controls) |
022658be | 2185 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 2186 | |
b8ad29de MB |
2187 | if (card->dapm_routes) |
2188 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
2189 | card->num_dapm_routes); | |
2190 | ||
f23e860e NC |
2191 | if (card->of_dapm_routes) |
2192 | snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, | |
2193 | card->num_of_dapm_routes); | |
75d9ac46 | 2194 | |
f0fba2ad | 2195 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 2196 | "%s", card->name); |
22de71ba LG |
2197 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
2198 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
2199 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
2200 | "%s", card->driver_name ? card->driver_name : card->name); | |
2201 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
2202 | switch (card->snd_card->driver[i]) { | |
2203 | case '_': | |
2204 | case '-': | |
2205 | case '\0': | |
2206 | break; | |
2207 | default: | |
2208 | if (!isalnum(card->snd_card->driver[i])) | |
2209 | card->snd_card->driver[i] = '_'; | |
2210 | break; | |
2211 | } | |
2212 | } | |
f0fba2ad | 2213 | |
28e9ad92 MB |
2214 | if (card->late_probe) { |
2215 | ret = card->late_probe(card); | |
2216 | if (ret < 0) { | |
f110bfc7 | 2217 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
2218 | card->name, ret); |
2219 | goto probe_aux_dev_err; | |
2220 | } | |
2221 | } | |
2222 | ||
824ef826 | 2223 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 2224 | |
f0fba2ad LG |
2225 | ret = snd_card_register(card->snd_card); |
2226 | if (ret < 0) { | |
f110bfc7 LG |
2227 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
2228 | ret); | |
6b3ed785 | 2229 | goto probe_aux_dev_err; |
db2a4165 FM |
2230 | } |
2231 | ||
f0fba2ad | 2232 | card->instantiated = 1; |
4f4c0072 | 2233 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 2234 | mutex_unlock(&card->mutex); |
34e81ab4 | 2235 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
2236 | |
2237 | return 0; | |
f0fba2ad | 2238 | |
2eea392d | 2239 | probe_aux_dev_err: |
f2ed6b07 | 2240 | soc_remove_aux_devices(card); |
2eea392d | 2241 | |
f0fba2ad | 2242 | probe_dai_err: |
0671fd8e | 2243 | soc_remove_dai_links(card); |
f0fba2ad LG |
2244 | |
2245 | card_probe_error: | |
87506549 | 2246 | if (card->remove) |
e7361ec4 | 2247 | card->remove(card); |
f0fba2ad | 2248 | |
2210438b | 2249 | snd_soc_dapm_free(&card->dapm); |
0757d834 | 2250 | soc_cleanup_card_debugfs(card); |
f0fba2ad LG |
2251 | snd_card_free(card->snd_card); |
2252 | ||
b19e6e7b | 2253 | base_error: |
1a497983 | 2254 | soc_remove_pcm_runtimes(card); |
f0fba2ad | 2255 | mutex_unlock(&card->mutex); |
34e81ab4 | 2256 | mutex_unlock(&client_mutex); |
db2a4165 | 2257 | |
b19e6e7b | 2258 | return ret; |
435c5e25 MB |
2259 | } |
2260 | ||
2261 | /* probes a new socdev */ | |
2262 | static int soc_probe(struct platform_device *pdev) | |
2263 | { | |
f0fba2ad | 2264 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 2265 | |
70a7ca34 VK |
2266 | /* |
2267 | * no card, so machine driver should be registering card | |
2268 | * we should not be here in that case so ret error | |
2269 | */ | |
2270 | if (!card) | |
2271 | return -EINVAL; | |
2272 | ||
fe4085e8 | 2273 | dev_warn(&pdev->dev, |
f110bfc7 | 2274 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
2275 | card->name); |
2276 | ||
435c5e25 MB |
2277 | /* Bodge while we unpick instantiation */ |
2278 | card->dev = &pdev->dev; | |
f0fba2ad | 2279 | |
28d528c8 | 2280 | return snd_soc_register_card(card); |
db2a4165 FM |
2281 | } |
2282 | ||
b0e26485 | 2283 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 | 2284 | { |
1a497983 | 2285 | struct snd_soc_pcm_runtime *rtd; |
db2a4165 | 2286 | |
b0e26485 | 2287 | /* make sure any delayed work runs */ |
1a497983 | 2288 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2289 | flush_delayed_work(&rtd->delayed_work); |
914dc182 | 2290 | |
b0e26485 | 2291 | /* remove and free each DAI */ |
0671fd8e | 2292 | soc_remove_dai_links(card); |
1a497983 | 2293 | soc_remove_pcm_runtimes(card); |
2eea392d | 2294 | |
f2ed6b07 ML |
2295 | /* remove auxiliary devices */ |
2296 | soc_remove_aux_devices(card); | |
2297 | ||
d1e81428 | 2298 | snd_soc_dapm_free(&card->dapm); |
b0e26485 | 2299 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2300 | |
b0e26485 VK |
2301 | /* remove the card */ |
2302 | if (card->remove) | |
e7361ec4 | 2303 | card->remove(card); |
a6052154 | 2304 | |
b0e26485 VK |
2305 | snd_card_free(card->snd_card); |
2306 | return 0; | |
2307 | ||
2308 | } | |
2309 | ||
2310 | /* removes a socdev */ | |
2311 | static int soc_remove(struct platform_device *pdev) | |
2312 | { | |
2313 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2314 | |
c5af3a2e | 2315 | snd_soc_unregister_card(card); |
db2a4165 FM |
2316 | return 0; |
2317 | } | |
2318 | ||
6f8ab4ac | 2319 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2320 | { |
6f8ab4ac | 2321 | struct snd_soc_card *card = dev_get_drvdata(dev); |
1a497983 | 2322 | struct snd_soc_pcm_runtime *rtd; |
51737470 MB |
2323 | |
2324 | if (!card->instantiated) | |
416356fc | 2325 | return 0; |
51737470 MB |
2326 | |
2327 | /* Flush out pmdown_time work - we actually do want to run it | |
2328 | * now, we're shutting down so no imminent restart. */ | |
1a497983 | 2329 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2330 | flush_delayed_work(&rtd->delayed_work); |
51737470 | 2331 | |
f0fba2ad | 2332 | snd_soc_dapm_shutdown(card); |
416356fc | 2333 | |
988e8cc4 | 2334 | /* deactivate pins to sleep state */ |
1a497983 | 2335 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f | 2336 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1a497983 | 2337 | int i; |
88bd870f | 2338 | |
988e8cc4 | 2339 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
1a497983 ML |
2340 | for (i = 0; i < rtd->num_codecs; i++) { |
2341 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
88bd870f BC |
2342 | pinctrl_pm_select_sleep_state(codec_dai->dev); |
2343 | } | |
988e8cc4 NC |
2344 | } |
2345 | ||
416356fc | 2346 | return 0; |
51737470 | 2347 | } |
6f8ab4ac | 2348 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2349 | |
6f8ab4ac | 2350 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
2351 | .suspend = snd_soc_suspend, |
2352 | .resume = snd_soc_resume, | |
2353 | .freeze = snd_soc_suspend, | |
2354 | .thaw = snd_soc_resume, | |
6f8ab4ac | 2355 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 2356 | .restore = snd_soc_resume, |
416356fc | 2357 | }; |
deb2607e | 2358 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2359 | |
db2a4165 FM |
2360 | /* ASoC platform driver */ |
2361 | static struct platform_driver soc_driver = { | |
2362 | .driver = { | |
2363 | .name = "soc-audio", | |
6f8ab4ac | 2364 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2365 | }, |
2366 | .probe = soc_probe, | |
2367 | .remove = soc_remove, | |
db2a4165 FM |
2368 | }; |
2369 | ||
db2a4165 FM |
2370 | /** |
2371 | * snd_soc_cnew - create new control | |
2372 | * @_template: control template | |
2373 | * @data: control private data | |
ac11a2b3 | 2374 | * @long_name: control long name |
efb7ac3f | 2375 | * @prefix: control name prefix |
db2a4165 FM |
2376 | * |
2377 | * Create a new mixer control from a template control. | |
2378 | * | |
2379 | * Returns 0 for success, else error. | |
2380 | */ | |
2381 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2382 | void *data, const char *long_name, |
efb7ac3f | 2383 | const char *prefix) |
db2a4165 FM |
2384 | { |
2385 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2386 | struct snd_kcontrol *kcontrol; |
2387 | char *name = NULL; | |
db2a4165 FM |
2388 | |
2389 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2390 | template.index = 0; |
2391 | ||
efb7ac3f MB |
2392 | if (!long_name) |
2393 | long_name = template.name; | |
2394 | ||
2395 | if (prefix) { | |
2b581074 | 2396 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
2397 | if (!name) |
2398 | return NULL; | |
2399 | ||
efb7ac3f MB |
2400 | template.name = name; |
2401 | } else { | |
2402 | template.name = long_name; | |
2403 | } | |
2404 | ||
2405 | kcontrol = snd_ctl_new1(&template, data); | |
2406 | ||
2407 | kfree(name); | |
2408 | ||
2409 | return kcontrol; | |
db2a4165 FM |
2410 | } |
2411 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2412 | ||
022658be LG |
2413 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2414 | const struct snd_kcontrol_new *controls, int num_controls, | |
2415 | const char *prefix, void *data) | |
2416 | { | |
2417 | int err, i; | |
2418 | ||
2419 | for (i = 0; i < num_controls; i++) { | |
2420 | const struct snd_kcontrol_new *control = &controls[i]; | |
2421 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2422 | control->name, prefix)); | |
2423 | if (err < 0) { | |
f110bfc7 LG |
2424 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
2425 | control->name, err); | |
022658be LG |
2426 | return err; |
2427 | } | |
2428 | } | |
2429 | ||
2430 | return 0; | |
2431 | } | |
2432 | ||
4fefd698 DP |
2433 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
2434 | const char *name) | |
2435 | { | |
2436 | struct snd_card *card = soc_card->snd_card; | |
2437 | struct snd_kcontrol *kctl; | |
2438 | ||
2439 | if (unlikely(!name)) | |
2440 | return NULL; | |
2441 | ||
2442 | list_for_each_entry(kctl, &card->controls, list) | |
2443 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
2444 | return kctl; | |
2445 | return NULL; | |
2446 | } | |
2447 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
2448 | ||
0f2780ad LPC |
2449 | /** |
2450 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
2451 | * | |
2452 | * @component: Component to add controls to | |
2453 | * @controls: Array of controls to add | |
2454 | * @num_controls: Number of elements in the array | |
2455 | * | |
2456 | * Return: 0 for success, else error. | |
2457 | */ | |
2458 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
2459 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
2460 | { | |
2461 | struct snd_card *card = component->card->snd_card; | |
2462 | ||
2463 | return snd_soc_add_controls(card, component->dev, controls, | |
2464 | num_controls, component->name_prefix, component); | |
2465 | } | |
2466 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
2467 | ||
3e8e1952 | 2468 | /** |
022658be LG |
2469 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2470 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2471 | * duplicating this code. |
2472 | * | |
2473 | * @codec: codec to add controls to | |
2474 | * @controls: array of controls to add | |
2475 | * @num_controls: number of elements in the array | |
2476 | * | |
2477 | * Return 0 for success, else error. | |
2478 | */ | |
022658be | 2479 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 2480 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 2481 | { |
0f2780ad LPC |
2482 | return snd_soc_add_component_controls(&codec->component, controls, |
2483 | num_controls); | |
3e8e1952 | 2484 | } |
022658be | 2485 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2486 | |
a491a5c8 LG |
2487 | /** |
2488 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2489 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2490 | * |
2491 | * @platform: platform to add controls to | |
2492 | * @controls: array of controls to add | |
2493 | * @num_controls: number of elements in the array | |
2494 | * | |
2495 | * Return 0 for success, else error. | |
2496 | */ | |
2497 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 2498 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 2499 | { |
0f2780ad LPC |
2500 | return snd_soc_add_component_controls(&platform->component, controls, |
2501 | num_controls); | |
a491a5c8 LG |
2502 | } |
2503 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2504 | ||
022658be LG |
2505 | /** |
2506 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2507 | * Convenience function to add a list of controls. | |
2508 | * | |
2509 | * @soc_card: SoC card to add controls to | |
2510 | * @controls: array of controls to add | |
2511 | * @num_controls: number of elements in the array | |
2512 | * | |
2513 | * Return 0 for success, else error. | |
2514 | */ | |
2515 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2516 | const struct snd_kcontrol_new *controls, int num_controls) | |
2517 | { | |
2518 | struct snd_card *card = soc_card->snd_card; | |
2519 | ||
2520 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2521 | NULL, soc_card); | |
2522 | } | |
2523 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2524 | ||
2525 | /** | |
2526 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2527 | * Convienience function to add a list of controls. | |
2528 | * | |
2529 | * @dai: DAI to add controls to | |
2530 | * @controls: array of controls to add | |
2531 | * @num_controls: number of elements in the array | |
2532 | * | |
2533 | * Return 0 for success, else error. | |
2534 | */ | |
2535 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2536 | const struct snd_kcontrol_new *controls, int num_controls) | |
2537 | { | |
313665b9 | 2538 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2539 | |
2540 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2541 | NULL, dai); | |
2542 | } | |
2543 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2544 | ||
8c6529db LG |
2545 | /** |
2546 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2547 | * @dai: DAI | |
2548 | * @clk_id: DAI specific clock ID | |
2549 | * @freq: new clock frequency in Hz | |
2550 | * @dir: new clock direction - input/output. | |
2551 | * | |
2552 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2553 | */ | |
2554 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2555 | unsigned int freq, int dir) | |
2556 | { | |
f0fba2ad LG |
2557 | if (dai->driver && dai->driver->ops->set_sysclk) |
2558 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2559 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2560 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2561 | freq, dir); |
8c6529db | 2562 | else |
1104a9c8 | 2563 | return -ENOTSUPP; |
8c6529db LG |
2564 | } |
2565 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2566 | ||
ec4ee52a MB |
2567 | /** |
2568 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2569 | * @codec: CODEC | |
2570 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2571 | * @source: Source for the clock |
ec4ee52a MB |
2572 | * @freq: new clock frequency in Hz |
2573 | * @dir: new clock direction - input/output. | |
2574 | * | |
2575 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2576 | */ | |
2577 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2578 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2579 | { |
2580 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2581 | return codec->driver->set_sysclk(codec, clk_id, source, |
2582 | freq, dir); | |
ec4ee52a | 2583 | else |
1104a9c8 | 2584 | return -ENOTSUPP; |
ec4ee52a MB |
2585 | } |
2586 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2587 | ||
8c6529db LG |
2588 | /** |
2589 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2590 | * @dai: DAI | |
ac11a2b3 | 2591 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2592 | * @div: new clock divisor. |
2593 | * | |
2594 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2595 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2596 | * and frame clocks as low as possible to save system power. | |
2597 | */ | |
2598 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2599 | int div_id, int div) | |
2600 | { | |
f0fba2ad LG |
2601 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2602 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2603 | else |
2604 | return -EINVAL; | |
2605 | } | |
2606 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2607 | ||
2608 | /** | |
2609 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2610 | * @dai: DAI | |
2611 | * @pll_id: DAI specific PLL ID | |
85488037 | 2612 | * @source: DAI specific source for the PLL |
8c6529db LG |
2613 | * @freq_in: PLL input clock frequency in Hz |
2614 | * @freq_out: requested PLL output clock frequency in Hz | |
2615 | * | |
2616 | * Configures and enables PLL to generate output clock based on input clock. | |
2617 | */ | |
85488037 MB |
2618 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2619 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2620 | { |
f0fba2ad LG |
2621 | if (dai->driver && dai->driver->ops->set_pll) |
2622 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2623 | freq_in, freq_out); |
ec4ee52a MB |
2624 | else if (dai->codec && dai->codec->driver->set_pll) |
2625 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2626 | freq_in, freq_out); | |
8c6529db LG |
2627 | else |
2628 | return -EINVAL; | |
2629 | } | |
2630 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2631 | ||
ec4ee52a MB |
2632 | /* |
2633 | * snd_soc_codec_set_pll - configure codec PLL. | |
2634 | * @codec: CODEC | |
2635 | * @pll_id: DAI specific PLL ID | |
2636 | * @source: DAI specific source for the PLL | |
2637 | * @freq_in: PLL input clock frequency in Hz | |
2638 | * @freq_out: requested PLL output clock frequency in Hz | |
2639 | * | |
2640 | * Configures and enables PLL to generate output clock based on input clock. | |
2641 | */ | |
2642 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2643 | unsigned int freq_in, unsigned int freq_out) | |
2644 | { | |
2645 | if (codec->driver->set_pll) | |
2646 | return codec->driver->set_pll(codec, pll_id, source, | |
2647 | freq_in, freq_out); | |
2648 | else | |
2649 | return -EINVAL; | |
2650 | } | |
2651 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2652 | ||
e54cf76b LG |
2653 | /** |
2654 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2655 | * @dai: DAI | |
231b86b1 | 2656 | * @ratio: Ratio of BCLK to Sample rate. |
e54cf76b LG |
2657 | * |
2658 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2659 | */ | |
2660 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2661 | { | |
2662 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2663 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2664 | else | |
2665 | return -EINVAL; | |
2666 | } | |
2667 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2668 | ||
8c6529db LG |
2669 | /** |
2670 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2671 | * @dai: DAI | |
8c6529db LG |
2672 | * @fmt: SND_SOC_DAIFMT_ format value. |
2673 | * | |
2674 | * Configures the DAI hardware format and clocking. | |
2675 | */ | |
2676 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2677 | { | |
5e4ba569 | 2678 | if (dai->driver == NULL) |
8c6529db | 2679 | return -EINVAL; |
5e4ba569 SG |
2680 | if (dai->driver->ops->set_fmt == NULL) |
2681 | return -ENOTSUPP; | |
2682 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2683 | } |
2684 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2685 | ||
89c67857 | 2686 | /** |
e5c21514 | 2687 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2688 | * @slots: Number of slots in use. |
2689 | * @tx_mask: bitmask representing active TX slots. | |
2690 | * @rx_mask: bitmask representing active RX slots. | |
2691 | * | |
2692 | * Generates the TDM tx and rx slot default masks for DAI. | |
2693 | */ | |
e5c21514 | 2694 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2695 | unsigned int *tx_mask, |
2696 | unsigned int *rx_mask) | |
2697 | { | |
2698 | if (*tx_mask || *rx_mask) | |
2699 | return 0; | |
2700 | ||
2701 | if (!slots) | |
2702 | return -EINVAL; | |
2703 | ||
2704 | *tx_mask = (1 << slots) - 1; | |
2705 | *rx_mask = (1 << slots) - 1; | |
2706 | ||
2707 | return 0; | |
2708 | } | |
2709 | ||
8c6529db | 2710 | /** |
e46c9366 LPC |
2711 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2712 | * @dai: The DAI to configure | |
a5479e38 DR |
2713 | * @tx_mask: bitmask representing active TX slots. |
2714 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2715 | * @slots: Number of slots in use. |
a5479e38 | 2716 | * @slot_width: Width in bits for each slot. |
8c6529db | 2717 | * |
e46c9366 LPC |
2718 | * This function configures the specified DAI for TDM operation. @slot contains |
2719 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2720 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2721 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2722 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2723 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2724 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2725 | * maps to the first channel of the DAI, the second active slot to the second | |
2726 | * channel and so on. | |
2727 | * | |
2728 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2729 | * @rx_mask and @slot_width will be ignored. | |
2730 | * | |
2731 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2732 | */ |
2733 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2734 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2735 | { |
e5c21514 XL |
2736 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2737 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2738 | &tx_mask, &rx_mask); |
2739 | else | |
e5c21514 | 2740 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2741 | |
88bd870f BC |
2742 | dai->tx_mask = tx_mask; |
2743 | dai->rx_mask = rx_mask; | |
2744 | ||
f0fba2ad LG |
2745 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2746 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2747 | slots, slot_width); |
8c6529db | 2748 | else |
b2cbb6e1 | 2749 | return -ENOTSUPP; |
8c6529db LG |
2750 | } |
2751 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2752 | ||
472df3cb BS |
2753 | /** |
2754 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2755 | * @dai: DAI | |
2756 | * @tx_num: how many TX channels | |
2757 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2758 | * 0~num-1 uses | |
2759 | * @rx_num: how many RX channels | |
2760 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2761 | * 0~num-1 uses | |
2762 | * | |
2763 | * configure the relationship between channel number and TDM slot number. | |
2764 | */ | |
2765 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2766 | unsigned int tx_num, unsigned int *tx_slot, | |
2767 | unsigned int rx_num, unsigned int *rx_slot) | |
2768 | { | |
f0fba2ad LG |
2769 | if (dai->driver && dai->driver->ops->set_channel_map) |
2770 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2771 | rx_num, rx_slot); |
2772 | else | |
2773 | return -EINVAL; | |
2774 | } | |
2775 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2776 | ||
8c6529db LG |
2777 | /** |
2778 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2779 | * @dai: DAI | |
2780 | * @tristate: tristate enable | |
2781 | * | |
2782 | * Tristates the DAI so that others can use it. | |
2783 | */ | |
2784 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2785 | { | |
f0fba2ad LG |
2786 | if (dai->driver && dai->driver->ops->set_tristate) |
2787 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2788 | else |
2789 | return -EINVAL; | |
2790 | } | |
2791 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2792 | ||
2793 | /** | |
2794 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2795 | * @dai: DAI | |
2796 | * @mute: mute enable | |
da18396f | 2797 | * @direction: stream to mute |
8c6529db LG |
2798 | * |
2799 | * Mutes the DAI DAC. | |
2800 | */ | |
da18396f MB |
2801 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2802 | int direction) | |
8c6529db | 2803 | { |
da18396f MB |
2804 | if (!dai->driver) |
2805 | return -ENOTSUPP; | |
2806 | ||
2807 | if (dai->driver->ops->mute_stream) | |
2808 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2809 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2810 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2811 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2812 | else |
04570c62 | 2813 | return -ENOTSUPP; |
8c6529db LG |
2814 | } |
2815 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2816 | ||
c5af3a2e MB |
2817 | /** |
2818 | * snd_soc_register_card - Register a card with the ASoC core | |
2819 | * | |
ac11a2b3 | 2820 | * @card: Card to register |
c5af3a2e | 2821 | * |
c5af3a2e | 2822 | */ |
70a7ca34 | 2823 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2824 | { |
923c5e61 | 2825 | int i, ret; |
1a497983 | 2826 | struct snd_soc_pcm_runtime *rtd; |
f0fba2ad | 2827 | |
c5af3a2e MB |
2828 | if (!card->name || !card->dev) |
2829 | return -EINVAL; | |
2830 | ||
5a504963 SW |
2831 | for (i = 0; i < card->num_links; i++) { |
2832 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2833 | ||
923c5e61 | 2834 | ret = soc_init_dai_link(card, link); |
88bd870f | 2835 | if (ret) { |
923c5e61 | 2836 | dev_err(card->dev, "ASoC: failed to init link %s\n", |
10e8aa9a | 2837 | link->name); |
923c5e61 | 2838 | return ret; |
5a504963 SW |
2839 | } |
2840 | } | |
2841 | ||
ed77cc12 MB |
2842 | dev_set_drvdata(card->dev, card); |
2843 | ||
111c6419 SW |
2844 | snd_soc_initialize_card_lists(card); |
2845 | ||
f8f80361 ML |
2846 | INIT_LIST_HEAD(&card->dai_link_list); |
2847 | card->num_dai_links = 0; | |
2848 | ||
1a497983 ML |
2849 | INIT_LIST_HEAD(&card->rtd_list); |
2850 | card->num_rtd = 0; | |
2851 | ||
db432b41 | 2852 | INIT_LIST_HEAD(&card->dapm_dirty); |
8a978234 | 2853 | INIT_LIST_HEAD(&card->dobj_list); |
c5af3a2e | 2854 | card->instantiated = 0; |
f0fba2ad | 2855 | mutex_init(&card->mutex); |
a73fb2df | 2856 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2857 | |
b19e6e7b MB |
2858 | ret = snd_soc_instantiate_card(card); |
2859 | if (ret != 0) | |
4e2576bd | 2860 | return ret; |
c5af3a2e | 2861 | |
988e8cc4 | 2862 | /* deactivate pins to sleep state */ |
1a497983 | 2863 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
2864 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2865 | int j; | |
2866 | ||
2867 | for (j = 0; j < rtd->num_codecs; j++) { | |
2868 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2869 | if (!codec_dai->active) | |
2870 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2871 | } | |
2872 | ||
988e8cc4 NC |
2873 | if (!cpu_dai->active) |
2874 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2875 | } | |
2876 | ||
b19e6e7b | 2877 | return ret; |
c5af3a2e | 2878 | } |
70a7ca34 | 2879 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2880 | |
2881 | /** | |
2882 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2883 | * | |
ac11a2b3 | 2884 | * @card: Card to unregister |
c5af3a2e | 2885 | * |
c5af3a2e | 2886 | */ |
70a7ca34 | 2887 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2888 | { |
01e0df66 LPC |
2889 | if (card->instantiated) { |
2890 | card->instantiated = false; | |
1c325f77 | 2891 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2892 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2893 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2894 | } |
c5af3a2e MB |
2895 | |
2896 | return 0; | |
2897 | } | |
70a7ca34 | 2898 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2899 | |
f0fba2ad LG |
2900 | /* |
2901 | * Simplify DAI link configuration by removing ".-1" from device names | |
2902 | * and sanitizing names. | |
2903 | */ | |
0b9a214a | 2904 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2905 | { |
2906 | char *found, name[NAME_SIZE]; | |
2907 | int id1, id2; | |
2908 | ||
2909 | if (dev_name(dev) == NULL) | |
2910 | return NULL; | |
2911 | ||
58818a77 | 2912 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2913 | |
2914 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2915 | found = strstr(name, dev->driver->name); | |
2916 | if (found) { | |
2917 | /* get ID */ | |
2918 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2919 | ||
2920 | /* discard ID from name if ID == -1 */ | |
2921 | if (*id == -1) | |
2922 | found[strlen(dev->driver->name)] = '\0'; | |
2923 | } | |
2924 | ||
2925 | } else { | |
2926 | /* I2C component devices are named "bus-addr" */ | |
2927 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2928 | char tmp[NAME_SIZE]; | |
2929 | ||
2930 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2931 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2932 | |
2933 | /* sanitize component name for DAI link creation */ | |
2934 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2935 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2936 | } else |
2937 | *id = 0; | |
2938 | } | |
2939 | ||
2940 | return kstrdup(name, GFP_KERNEL); | |
2941 | } | |
2942 | ||
2943 | /* | |
2944 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2945 | * any ".-1" and using the DAI name (instead of device name). | |
2946 | */ | |
2947 | static inline char *fmt_multiple_name(struct device *dev, | |
2948 | struct snd_soc_dai_driver *dai_drv) | |
2949 | { | |
2950 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2951 | dev_err(dev, |
2952 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2953 | dev_name(dev)); | |
f0fba2ad LG |
2954 | return NULL; |
2955 | } | |
2956 | ||
2957 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2958 | } | |
2959 | ||
9115171a | 2960 | /** |
32c9ba54 | 2961 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2962 | * |
32c9ba54 | 2963 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2964 | */ |
32c9ba54 | 2965 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2966 | { |
5c1d5f09 | 2967 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2968 | |
5c1d5f09 | 2969 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2970 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2971 | dai->name); | |
5c1d5f09 | 2972 | list_del(&dai->list); |
32c9ba54 | 2973 | kfree(dai->name); |
f0fba2ad | 2974 | kfree(dai); |
f0fba2ad | 2975 | } |
9115171a | 2976 | } |
9115171a | 2977 | |
5e4fb372 ML |
2978 | /* Create a DAI and add it to the component's DAI list */ |
2979 | static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, | |
2980 | struct snd_soc_dai_driver *dai_drv, | |
2981 | bool legacy_dai_naming) | |
2982 | { | |
2983 | struct device *dev = component->dev; | |
2984 | struct snd_soc_dai *dai; | |
2985 | ||
2986 | dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); | |
2987 | ||
2988 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
2989 | if (dai == NULL) | |
2990 | return NULL; | |
2991 | ||
2992 | /* | |
2993 | * Back in the old days when we still had component-less DAIs, | |
2994 | * instead of having a static name, component-less DAIs would | |
2995 | * inherit the name of the parent device so it is possible to | |
2996 | * register multiple instances of the DAI. We still need to keep | |
2997 | * the same naming style even though those DAIs are not | |
2998 | * component-less anymore. | |
2999 | */ | |
3000 | if (legacy_dai_naming && | |
3001 | (dai_drv->id == 0 || dai_drv->name == NULL)) { | |
3002 | dai->name = fmt_single_name(dev, &dai->id); | |
3003 | } else { | |
3004 | dai->name = fmt_multiple_name(dev, dai_drv); | |
3005 | if (dai_drv->id) | |
3006 | dai->id = dai_drv->id; | |
3007 | else | |
3008 | dai->id = component->num_dai; | |
3009 | } | |
3010 | if (dai->name == NULL) { | |
3011 | kfree(dai); | |
3012 | return NULL; | |
3013 | } | |
3014 | ||
3015 | dai->component = component; | |
3016 | dai->dev = dev; | |
3017 | dai->driver = dai_drv; | |
3018 | if (!dai->driver->ops) | |
3019 | dai->driver->ops = &null_dai_ops; | |
3020 | ||
3021 | list_add(&dai->list, &component->dai_list); | |
3022 | component->num_dai++; | |
3023 | ||
3024 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); | |
3025 | return dai; | |
3026 | } | |
3027 | ||
9115171a | 3028 | /** |
32c9ba54 | 3029 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 3030 | * |
6106d129 LPC |
3031 | * @component: The component the DAIs are registered for |
3032 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 3033 | * @count: Number of DAIs |
32c9ba54 LPC |
3034 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
3035 | * parent's name. | |
9115171a | 3036 | */ |
6106d129 | 3037 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
3038 | struct snd_soc_dai_driver *dai_drv, size_t count, |
3039 | bool legacy_dai_naming) | |
9115171a | 3040 | { |
6106d129 | 3041 | struct device *dev = component->dev; |
f0fba2ad | 3042 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
3043 | unsigned int i; |
3044 | int ret; | |
f0fba2ad | 3045 | |
5b5e0928 | 3046 | dev_dbg(dev, "ASoC: dai register %s #%zu\n", dev_name(dev), count); |
9115171a | 3047 | |
bb13109d | 3048 | component->dai_drv = dai_drv; |
bb13109d | 3049 | |
9115171a | 3050 | for (i = 0; i < count; i++) { |
f0fba2ad | 3051 | |
5e4fb372 ML |
3052 | dai = soc_add_dai(component, dai_drv + i, |
3053 | count == 1 && legacy_dai_naming); | |
c46e0079 AL |
3054 | if (dai == NULL) { |
3055 | ret = -ENOMEM; | |
3056 | goto err; | |
3057 | } | |
9115171a | 3058 | } |
f0fba2ad | 3059 | |
9115171a | 3060 | return 0; |
f0fba2ad | 3061 | |
9115171a | 3062 | err: |
32c9ba54 | 3063 | snd_soc_unregister_dais(component); |
f0fba2ad | 3064 | |
9115171a MB |
3065 | return ret; |
3066 | } | |
9115171a | 3067 | |
68003e6c ML |
3068 | /** |
3069 | * snd_soc_register_dai - Register a DAI dynamically & create its widgets | |
3070 | * | |
3071 | * @component: The component the DAIs are registered for | |
3072 | * @dai_drv: DAI driver to use for the DAI | |
3073 | * | |
3074 | * Topology can use this API to register DAIs when probing a component. | |
3075 | * These DAIs's widgets will be freed in the card cleanup and the DAIs | |
3076 | * will be freed in the component cleanup. | |
3077 | */ | |
3078 | int snd_soc_register_dai(struct snd_soc_component *component, | |
3079 | struct snd_soc_dai_driver *dai_drv) | |
3080 | { | |
3081 | struct snd_soc_dapm_context *dapm = | |
3082 | snd_soc_component_get_dapm(component); | |
3083 | struct snd_soc_dai *dai; | |
3084 | int ret; | |
054880fe | 3085 | |
68003e6c ML |
3086 | if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) { |
3087 | dev_err(component->dev, "Invalid dai type %d\n", | |
3088 | dai_drv->dobj.type); | |
3089 | return -EINVAL; | |
9115171a MB |
3090 | } |
3091 | ||
68003e6c ML |
3092 | lockdep_assert_held(&client_mutex); |
3093 | dai = soc_add_dai(component, dai_drv, false); | |
3094 | if (!dai) | |
3095 | return -ENOMEM; | |
9115171a | 3096 | |
68003e6c ML |
3097 | /* Create the DAI widgets here. After adding DAIs, topology may |
3098 | * also add routes that need these widgets as source or sink. | |
3099 | */ | |
3100 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
3101 | if (ret != 0) { | |
3102 | dev_err(component->dev, | |
3103 | "Failed to create DAI widgets %d\n", ret); | |
3104 | } | |
9115171a MB |
3105 | |
3106 | return ret; | |
3107 | } | |
68003e6c | 3108 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); |
9115171a | 3109 | |
14e8bdeb LPC |
3110 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
3111 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 3112 | { |
14e8bdeb | 3113 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 3114 | |
14e8bdeb LPC |
3115 | component->driver->seq_notifier(component, type, subseq); |
3116 | } | |
d191bd8d | 3117 | |
14e8bdeb LPC |
3118 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
3119 | int event) | |
3120 | { | |
3121 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 3122 | |
14e8bdeb LPC |
3123 | return component->driver->stream_event(component, event); |
3124 | } | |
e2c330b9 | 3125 | |
bb13109d LPC |
3126 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
3127 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 3128 | { |
ce0fc93a LPC |
3129 | struct snd_soc_dapm_context *dapm; |
3130 | ||
bb13109d LPC |
3131 | component->name = fmt_single_name(dev, &component->id); |
3132 | if (!component->name) { | |
3133 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
3134 | return -ENOMEM; |
3135 | } | |
3136 | ||
bb13109d LPC |
3137 | component->dev = dev; |
3138 | component->driver = driver; | |
61aca564 LPC |
3139 | component->probe = component->driver->probe; |
3140 | component->remove = component->driver->remove; | |
9178feb4 KM |
3141 | component->suspend = component->driver->suspend; |
3142 | component->resume = component->driver->resume; | |
99b04f4c KM |
3143 | component->pcm_new = component->driver->pcm_new; |
3144 | component->pcm_free= component->driver->pcm_free; | |
d191bd8d | 3145 | |
4890140f | 3146 | dapm = &component->dapm; |
ce0fc93a LPC |
3147 | dapm->dev = dev; |
3148 | dapm->component = component; | |
3149 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 3150 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
3151 | if (driver->seq_notifier) |
3152 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
3153 | if (driver->stream_event) | |
3154 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 3155 | |
61aca564 LPC |
3156 | component->controls = driver->controls; |
3157 | component->num_controls = driver->num_controls; | |
3158 | component->dapm_widgets = driver->dapm_widgets; | |
3159 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
3160 | component->dapm_routes = driver->dapm_routes; | |
3161 | component->num_dapm_routes = driver->num_dapm_routes; | |
3162 | ||
bb13109d LPC |
3163 | INIT_LIST_HEAD(&component->dai_list); |
3164 | mutex_init(&component->io_mutex); | |
d191bd8d | 3165 | |
bb13109d LPC |
3166 | return 0; |
3167 | } | |
d191bd8d | 3168 | |
20feb881 | 3169 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 3170 | { |
20feb881 LPC |
3171 | int val_bytes = regmap_get_val_bytes(component->regmap); |
3172 | ||
3173 | /* Errors are legitimate for non-integer byte multiples */ | |
3174 | if (val_bytes > 0) | |
3175 | component->val_bytes = val_bytes; | |
3176 | } | |
3177 | ||
e874bf5f LPC |
3178 | #ifdef CONFIG_REGMAP |
3179 | ||
20feb881 LPC |
3180 | /** |
3181 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
3182 | * @component: The component for which to initialize the regmap instance | |
3183 | * @regmap: The regmap instance that should be used by the component | |
3184 | * | |
3185 | * This function allows deferred assignment of the regmap instance that is | |
3186 | * associated with the component. Only use this if the regmap instance is not | |
3187 | * yet ready when the component is registered. The function must also be called | |
3188 | * before the first IO attempt of the component. | |
3189 | */ | |
3190 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
3191 | struct regmap *regmap) | |
3192 | { | |
3193 | component->regmap = regmap; | |
3194 | snd_soc_component_setup_regmap(component); | |
886f5692 | 3195 | } |
20feb881 LPC |
3196 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
3197 | ||
3198 | /** | |
3199 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
3200 | * @component: The component for which to de-initialize the regmap instance | |
3201 | * | |
3202 | * Calls regmap_exit() on the regmap instance associated to the component and | |
3203 | * removes the regmap instance from the component. | |
3204 | * | |
3205 | * This function should only be used if snd_soc_component_init_regmap() was used | |
3206 | * to initialize the regmap instance. | |
3207 | */ | |
3208 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
3209 | { | |
3210 | regmap_exit(component->regmap); | |
3211 | component->regmap = NULL; | |
3212 | } | |
3213 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 3214 | |
e874bf5f | 3215 | #endif |
886f5692 | 3216 | |
bb13109d LPC |
3217 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
3218 | { | |
20feb881 LPC |
3219 | if (!component->write && !component->read) { |
3220 | if (!component->regmap) | |
3221 | component->regmap = dev_get_regmap(component->dev, NULL); | |
3222 | if (component->regmap) | |
3223 | snd_soc_component_setup_regmap(component); | |
3224 | } | |
886f5692 | 3225 | |
bb13109d | 3226 | list_add(&component->list, &component_list); |
8a978234 | 3227 | INIT_LIST_HEAD(&component->dobj_list); |
bb13109d | 3228 | } |
d191bd8d | 3229 | |
bb13109d LPC |
3230 | static void snd_soc_component_add(struct snd_soc_component *component) |
3231 | { | |
d191bd8d | 3232 | mutex_lock(&client_mutex); |
bb13109d | 3233 | snd_soc_component_add_unlocked(component); |
d191bd8d | 3234 | mutex_unlock(&client_mutex); |
bb13109d | 3235 | } |
d191bd8d | 3236 | |
bb13109d LPC |
3237 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
3238 | { | |
3239 | snd_soc_unregister_dais(component); | |
3240 | kfree(component->name); | |
3241 | } | |
d191bd8d | 3242 | |
bb13109d LPC |
3243 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
3244 | { | |
3245 | list_del(&component->list); | |
3246 | } | |
d191bd8d | 3247 | |
d191bd8d KM |
3248 | int snd_soc_register_component(struct device *dev, |
3249 | const struct snd_soc_component_driver *cmpnt_drv, | |
3250 | struct snd_soc_dai_driver *dai_drv, | |
3251 | int num_dai) | |
3252 | { | |
3253 | struct snd_soc_component *cmpnt; | |
bb13109d | 3254 | int ret; |
d191bd8d | 3255 | |
bb13109d | 3256 | cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); |
d191bd8d KM |
3257 | if (!cmpnt) { |
3258 | dev_err(dev, "ASoC: Failed to allocate memory\n"); | |
3259 | return -ENOMEM; | |
3260 | } | |
3261 | ||
bb13109d LPC |
3262 | ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); |
3263 | if (ret) | |
3264 | goto err_free; | |
3265 | ||
3d59400f | 3266 | cmpnt->ignore_pmdown_time = true; |
98e639fb | 3267 | cmpnt->registered_as_component = true; |
3d59400f | 3268 | |
bb13109d LPC |
3269 | ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); |
3270 | if (ret < 0) { | |
f42cf8d6 | 3271 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d LPC |
3272 | goto err_cleanup; |
3273 | } | |
d191bd8d | 3274 | |
bb13109d | 3275 | snd_soc_component_add(cmpnt); |
4da53393 | 3276 | |
bb13109d | 3277 | return 0; |
4da53393 | 3278 | |
bb13109d LPC |
3279 | err_cleanup: |
3280 | snd_soc_component_cleanup(cmpnt); | |
3281 | err_free: | |
3282 | kfree(cmpnt); | |
3283 | return ret; | |
4da53393 | 3284 | } |
bb13109d | 3285 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 3286 | |
d191bd8d KM |
3287 | /** |
3288 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
3289 | * | |
628536ea | 3290 | * @dev: The device to unregister |
d191bd8d KM |
3291 | */ |
3292 | void snd_soc_unregister_component(struct device *dev) | |
3293 | { | |
3294 | struct snd_soc_component *cmpnt; | |
3295 | ||
34e81ab4 | 3296 | mutex_lock(&client_mutex); |
d191bd8d | 3297 | list_for_each_entry(cmpnt, &component_list, list) { |
98e639fb | 3298 | if (dev == cmpnt->dev && cmpnt->registered_as_component) |
d191bd8d KM |
3299 | goto found; |
3300 | } | |
34e81ab4 | 3301 | mutex_unlock(&client_mutex); |
d191bd8d KM |
3302 | return; |
3303 | ||
3304 | found: | |
8a978234 | 3305 | snd_soc_tplg_component_remove(cmpnt, SND_SOC_TPLG_INDEX_ALL); |
34e81ab4 LPC |
3306 | snd_soc_component_del_unlocked(cmpnt); |
3307 | mutex_unlock(&client_mutex); | |
bb13109d LPC |
3308 | snd_soc_component_cleanup(cmpnt); |
3309 | kfree(cmpnt); | |
d191bd8d KM |
3310 | } |
3311 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 3312 | |
f1d45cc3 | 3313 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
3314 | { |
3315 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 3316 | |
f1d45cc3 | 3317 | return platform->driver->probe(platform); |
e2c330b9 LPC |
3318 | } |
3319 | ||
f1d45cc3 | 3320 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
3321 | { |
3322 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
3323 | ||
f1d45cc3 | 3324 | platform->driver->remove(platform); |
d191bd8d | 3325 | } |
d191bd8d | 3326 | |
99b04f4c KM |
3327 | static int snd_soc_platform_drv_pcm_new(struct snd_soc_pcm_runtime *rtd) |
3328 | { | |
3329 | struct snd_soc_platform *platform = rtd->platform; | |
3330 | ||
3331 | return platform->driver->pcm_new(rtd); | |
3332 | } | |
3333 | ||
3334 | static void snd_soc_platform_drv_pcm_free(struct snd_pcm *pcm) | |
3335 | { | |
3336 | struct snd_soc_pcm_runtime *rtd = pcm->private_data; | |
3337 | struct snd_soc_platform *platform = rtd->platform; | |
3338 | ||
3339 | platform->driver->pcm_free(pcm); | |
3340 | } | |
3341 | ||
12a48a8c | 3342 | /** |
71a45cda LPC |
3343 | * snd_soc_add_platform - Add a platform to the ASoC core |
3344 | * @dev: The parent device for the platform | |
3345 | * @platform: The platform to add | |
7d1442b4 | 3346 | * @platform_drv: The driver for the platform |
12a48a8c | 3347 | */ |
71a45cda | 3348 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 3349 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 3350 | { |
b37f1d12 LPC |
3351 | int ret; |
3352 | ||
bb13109d LPC |
3353 | ret = snd_soc_component_initialize(&platform->component, |
3354 | &platform_drv->component_driver, dev); | |
3355 | if (ret) | |
3356 | return ret; | |
12a48a8c | 3357 | |
f0fba2ad LG |
3358 | platform->dev = dev; |
3359 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
3360 | |
3361 | if (platform_drv->probe) | |
3362 | platform->component.probe = snd_soc_platform_drv_probe; | |
3363 | if (platform_drv->remove) | |
3364 | platform->component.remove = snd_soc_platform_drv_remove; | |
99b04f4c KM |
3365 | if (platform_drv->pcm_new) |
3366 | platform->component.pcm_new = snd_soc_platform_drv_pcm_new; | |
3367 | if (platform_drv->pcm_free) | |
3368 | platform->component.pcm_free = snd_soc_platform_drv_pcm_free; | |
12a48a8c | 3369 | |
81c7cfd1 LPC |
3370 | #ifdef CONFIG_DEBUG_FS |
3371 | platform->component.debugfs_prefix = "platform"; | |
3372 | #endif | |
12a48a8c MB |
3373 | |
3374 | mutex_lock(&client_mutex); | |
bb13109d | 3375 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
3376 | list_add(&platform->list, &platform_list); |
3377 | mutex_unlock(&client_mutex); | |
3378 | ||
f4333203 LPC |
3379 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
3380 | platform->component.name); | |
12a48a8c MB |
3381 | |
3382 | return 0; | |
3383 | } | |
71a45cda | 3384 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
3385 | |
3386 | /** | |
71a45cda | 3387 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 3388 | * |
628536ea JC |
3389 | * @dev: The device for the platform |
3390 | * @platform_drv: The driver for the platform | |
12a48a8c | 3391 | */ |
71a45cda LPC |
3392 | int snd_soc_register_platform(struct device *dev, |
3393 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3394 | { |
f0fba2ad | 3395 | struct snd_soc_platform *platform; |
71a45cda | 3396 | int ret; |
f0fba2ad | 3397 | |
71a45cda | 3398 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 3399 | |
71a45cda LPC |
3400 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
3401 | if (platform == NULL) | |
3402 | return -ENOMEM; | |
3403 | ||
3404 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
3405 | if (ret) | |
3406 | kfree(platform); | |
3407 | ||
3408 | return ret; | |
3409 | } | |
3410 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3411 | ||
3412 | /** | |
3413 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
3414 | * @platform: the platform to remove | |
3415 | */ | |
3416 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
3417 | { | |
b37f1d12 | 3418 | |
12a48a8c MB |
3419 | mutex_lock(&client_mutex); |
3420 | list_del(&platform->list); | |
bb13109d | 3421 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
3422 | mutex_unlock(&client_mutex); |
3423 | ||
71a45cda | 3424 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 3425 | platform->component.name); |
decc27b0 DM |
3426 | |
3427 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
3428 | } |
3429 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
3430 | ||
3431 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
3432 | { | |
3433 | struct snd_soc_platform *platform; | |
3434 | ||
34e81ab4 | 3435 | mutex_lock(&client_mutex); |
71a45cda | 3436 | list_for_each_entry(platform, &platform_list, list) { |
34e81ab4 LPC |
3437 | if (dev == platform->dev) { |
3438 | mutex_unlock(&client_mutex); | |
71a45cda | 3439 | return platform; |
34e81ab4 | 3440 | } |
71a45cda | 3441 | } |
34e81ab4 | 3442 | mutex_unlock(&client_mutex); |
71a45cda LPC |
3443 | |
3444 | return NULL; | |
3445 | } | |
3446 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
3447 | ||
3448 | /** | |
3449 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3450 | * | |
628536ea | 3451 | * @dev: platform to unregister |
71a45cda LPC |
3452 | */ |
3453 | void snd_soc_unregister_platform(struct device *dev) | |
3454 | { | |
3455 | struct snd_soc_platform *platform; | |
3456 | ||
3457 | platform = snd_soc_lookup_platform(dev); | |
3458 | if (!platform) | |
3459 | return; | |
3460 | ||
3461 | snd_soc_remove_platform(platform); | |
f0fba2ad | 3462 | kfree(platform); |
12a48a8c MB |
3463 | } |
3464 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3465 | ||
151ab22c MB |
3466 | static u64 codec_format_map[] = { |
3467 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3468 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3469 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3470 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3471 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3472 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3473 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3474 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3475 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3476 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3477 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3478 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3479 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3480 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3481 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3482 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3483 | }; | |
3484 | ||
3485 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3486 | * the endianness of the data but we're using the CPU format | |
3487 | * definitions which do need to include endianness so we ensure that | |
3488 | * codec DAIs always have both big and little endian variants set. | |
3489 | */ | |
3490 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3491 | { | |
3492 | int i; | |
3493 | ||
3494 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3495 | if (stream->formats & codec_format_map[i]) | |
3496 | stream->formats |= codec_format_map[i]; | |
3497 | } | |
3498 | ||
f1d45cc3 LPC |
3499 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
3500 | { | |
3501 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3502 | ||
3503 | return codec->driver->probe(codec); | |
3504 | } | |
3505 | ||
3506 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
3507 | { | |
3508 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3509 | ||
3510 | codec->driver->remove(codec); | |
3511 | } | |
3512 | ||
9178feb4 KM |
3513 | static int snd_soc_codec_drv_suspend(struct snd_soc_component *component) |
3514 | { | |
3515 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3516 | ||
3517 | return codec->driver->suspend(codec); | |
3518 | } | |
3519 | ||
3520 | static int snd_soc_codec_drv_resume(struct snd_soc_component *component) | |
3521 | { | |
3522 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3523 | ||
3524 | return codec->driver->resume(codec); | |
3525 | } | |
3526 | ||
e2c330b9 LPC |
3527 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
3528 | unsigned int reg, unsigned int val) | |
3529 | { | |
3530 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3531 | ||
3532 | return codec->driver->write(codec, reg, val); | |
3533 | } | |
3534 | ||
3535 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
3536 | unsigned int reg, unsigned int *val) | |
3537 | { | |
3538 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3539 | ||
3540 | *val = codec->driver->read(codec, reg); | |
3541 | ||
3542 | return 0; | |
3543 | } | |
3544 | ||
68f831c2 LPC |
3545 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
3546 | enum snd_soc_bias_level level) | |
3547 | { | |
3548 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
3549 | ||
3550 | return codec->driver->set_bias_level(codec, level); | |
3551 | } | |
3552 | ||
0d0cf00a MB |
3553 | /** |
3554 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3555 | * | |
628536ea JC |
3556 | * @dev: The parent device for this codec |
3557 | * @codec_drv: Codec driver | |
3558 | * @dai_drv: The associated DAI driver | |
3559 | * @num_dai: Number of DAIs | |
0d0cf00a | 3560 | */ |
f0fba2ad | 3561 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3562 | const struct snd_soc_codec_driver *codec_drv, |
3563 | struct snd_soc_dai_driver *dai_drv, | |
3564 | int num_dai) | |
0d0cf00a | 3565 | { |
4890140f | 3566 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3567 | struct snd_soc_codec *codec; |
bb13109d | 3568 | struct snd_soc_dai *dai; |
f0fba2ad | 3569 | int ret, i; |
151ab22c | 3570 | |
f0fba2ad LG |
3571 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3572 | ||
3573 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3574 | if (codec == NULL) | |
3575 | return -ENOMEM; | |
0d0cf00a | 3576 | |
f1d45cc3 | 3577 | codec->component.codec = codec; |
ce0fc93a | 3578 | |
bb13109d LPC |
3579 | ret = snd_soc_component_initialize(&codec->component, |
3580 | &codec_drv->component_driver, dev); | |
3581 | if (ret) | |
3582 | goto err_free; | |
f0fba2ad | 3583 | |
f1d45cc3 LPC |
3584 | if (codec_drv->probe) |
3585 | codec->component.probe = snd_soc_codec_drv_probe; | |
3586 | if (codec_drv->remove) | |
3587 | codec->component.remove = snd_soc_codec_drv_remove; | |
9178feb4 KM |
3588 | if (codec_drv->suspend) |
3589 | codec->component.suspend = snd_soc_codec_drv_suspend; | |
3590 | if (codec_drv->resume) | |
3591 | codec->component.resume = snd_soc_codec_drv_resume; | |
e2c330b9 LPC |
3592 | if (codec_drv->write) |
3593 | codec->component.write = snd_soc_codec_drv_write; | |
3594 | if (codec_drv->read) | |
3595 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3596 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
4890140f LPC |
3597 | |
3598 | dapm = snd_soc_codec_get_dapm(codec); | |
3599 | dapm->idle_bias_off = codec_drv->idle_bias_off; | |
3600 | dapm->suspend_bias_off = codec_drv->suspend_bias_off; | |
14e8bdeb | 3601 | if (codec_drv->seq_notifier) |
4890140f | 3602 | dapm->seq_notifier = codec_drv->seq_notifier; |
68f831c2 | 3603 | if (codec_drv->set_bias_level) |
4890140f | 3604 | dapm->set_bias_level = snd_soc_codec_set_bias_level; |
7a30a3db DP |
3605 | codec->dev = dev; |
3606 | codec->driver = codec_drv; | |
e2c330b9 | 3607 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3608 | |
81c7cfd1 LPC |
3609 | #ifdef CONFIG_DEBUG_FS |
3610 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3611 | codec->component.debugfs_prefix = "codec"; | |
3612 | #endif | |
3613 | ||
886f5692 LPC |
3614 | if (codec_drv->get_regmap) |
3615 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3616 | |
f0fba2ad LG |
3617 | for (i = 0; i < num_dai; i++) { |
3618 | fixup_codec_formats(&dai_drv[i].playback); | |
3619 | fixup_codec_formats(&dai_drv[i].capture); | |
3620 | } | |
3621 | ||
bb13109d | 3622 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3623 | if (ret < 0) { |
f42cf8d6 | 3624 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d | 3625 | goto err_cleanup; |
26b01ccd | 3626 | } |
f0fba2ad | 3627 | |
bb13109d LPC |
3628 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3629 | dai->codec = codec; | |
f0fba2ad | 3630 | |
e1328a83 | 3631 | mutex_lock(&client_mutex); |
bb13109d | 3632 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3633 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3634 | mutex_unlock(&client_mutex); |
3635 | ||
f4333203 LPC |
3636 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3637 | codec->component.name); | |
0d0cf00a | 3638 | return 0; |
f0fba2ad | 3639 | |
bb13109d LPC |
3640 | err_cleanup: |
3641 | snd_soc_component_cleanup(&codec->component); | |
3642 | err_free: | |
f0fba2ad LG |
3643 | kfree(codec); |
3644 | return ret; | |
0d0cf00a MB |
3645 | } |
3646 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3647 | ||
3648 | /** | |
3649 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3650 | * | |
628536ea | 3651 | * @dev: codec to unregister |
0d0cf00a | 3652 | */ |
f0fba2ad | 3653 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3654 | { |
f0fba2ad | 3655 | struct snd_soc_codec *codec; |
f0fba2ad | 3656 | |
34e81ab4 | 3657 | mutex_lock(&client_mutex); |
f0fba2ad LG |
3658 | list_for_each_entry(codec, &codec_list, list) { |
3659 | if (dev == codec->dev) | |
3660 | goto found; | |
3661 | } | |
34e81ab4 | 3662 | mutex_unlock(&client_mutex); |
f0fba2ad LG |
3663 | return; |
3664 | ||
3665 | found: | |
0d0cf00a | 3666 | list_del(&codec->list); |
bb13109d | 3667 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3668 | mutex_unlock(&client_mutex); |
3669 | ||
f4333203 LPC |
3670 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3671 | codec->component.name); | |
f0fba2ad | 3672 | |
bb13109d | 3673 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3674 | snd_soc_cache_exit(codec); |
f0fba2ad | 3675 | kfree(codec); |
0d0cf00a MB |
3676 | } |
3677 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3678 | ||
bec4fa05 | 3679 | /* Retrieve a card's name from device tree */ |
b07609ce KM |
3680 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, |
3681 | const char *propname) | |
bec4fa05 | 3682 | { |
b07609ce | 3683 | struct device_node *np; |
bec4fa05 SW |
3684 | int ret; |
3685 | ||
7e07e7c0 TB |
3686 | if (!card->dev) { |
3687 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3688 | return -EINVAL; | |
3689 | } | |
3690 | ||
b07609ce | 3691 | np = card->dev->of_node; |
7e07e7c0 | 3692 | |
bec4fa05 SW |
3693 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3694 | /* | |
3695 | * EINVAL means the property does not exist. This is fine providing | |
3696 | * card->name was previously set, which is checked later in | |
3697 | * snd_soc_register_card. | |
3698 | */ | |
3699 | if (ret < 0 && ret != -EINVAL) { | |
3700 | dev_err(card->dev, | |
f110bfc7 | 3701 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3702 | propname, ret); |
3703 | return ret; | |
3704 | } | |
3705 | ||
3706 | return 0; | |
3707 | } | |
b07609ce | 3708 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); |
bec4fa05 | 3709 | |
9a6d4860 XL |
3710 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3711 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3712 | SND_SOC_DAPM_LINE("Line", NULL), | |
3713 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3714 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3715 | }; | |
3716 | ||
21efde50 | 3717 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, |
9a6d4860 XL |
3718 | const char *propname) |
3719 | { | |
21efde50 | 3720 | struct device_node *np = card->dev->of_node; |
9a6d4860 XL |
3721 | struct snd_soc_dapm_widget *widgets; |
3722 | const char *template, *wname; | |
3723 | int i, j, num_widgets, ret; | |
3724 | ||
3725 | num_widgets = of_property_count_strings(np, propname); | |
3726 | if (num_widgets < 0) { | |
3727 | dev_err(card->dev, | |
3728 | "ASoC: Property '%s' does not exist\n", propname); | |
3729 | return -EINVAL; | |
3730 | } | |
3731 | if (num_widgets & 1) { | |
3732 | dev_err(card->dev, | |
3733 | "ASoC: Property '%s' length is not even\n", propname); | |
3734 | return -EINVAL; | |
3735 | } | |
3736 | ||
3737 | num_widgets /= 2; | |
3738 | if (!num_widgets) { | |
3739 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3740 | propname); | |
3741 | return -EINVAL; | |
3742 | } | |
3743 | ||
3744 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3745 | GFP_KERNEL); | |
3746 | if (!widgets) { | |
3747 | dev_err(card->dev, | |
3748 | "ASoC: Could not allocate memory for widgets\n"); | |
3749 | return -ENOMEM; | |
3750 | } | |
3751 | ||
3752 | for (i = 0; i < num_widgets; i++) { | |
3753 | ret = of_property_read_string_index(np, propname, | |
3754 | 2 * i, &template); | |
3755 | if (ret) { | |
3756 | dev_err(card->dev, | |
3757 | "ASoC: Property '%s' index %d read error:%d\n", | |
3758 | propname, 2 * i, ret); | |
3759 | return -EINVAL; | |
3760 | } | |
3761 | ||
3762 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3763 | if (!strncmp(template, simple_widgets[j].name, | |
3764 | strlen(simple_widgets[j].name))) { | |
3765 | widgets[i] = simple_widgets[j]; | |
3766 | break; | |
3767 | } | |
3768 | } | |
3769 | ||
3770 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3771 | dev_err(card->dev, | |
3772 | "ASoC: DAPM widget '%s' is not supported\n", | |
3773 | template); | |
3774 | return -EINVAL; | |
3775 | } | |
3776 | ||
3777 | ret = of_property_read_string_index(np, propname, | |
3778 | (2 * i) + 1, | |
3779 | &wname); | |
3780 | if (ret) { | |
3781 | dev_err(card->dev, | |
3782 | "ASoC: Property '%s' index %d read error:%d\n", | |
3783 | propname, (2 * i) + 1, ret); | |
3784 | return -EINVAL; | |
3785 | } | |
3786 | ||
3787 | widgets[i].name = wname; | |
3788 | } | |
3789 | ||
f23e860e NC |
3790 | card->of_dapm_widgets = widgets; |
3791 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
3792 | |
3793 | return 0; | |
3794 | } | |
21efde50 | 3795 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); |
9a6d4860 | 3796 | |
6131084a JS |
3797 | static int snd_soc_of_get_slot_mask(struct device_node *np, |
3798 | const char *prop_name, | |
3799 | unsigned int *mask) | |
3800 | { | |
3801 | u32 val; | |
6c84e591 | 3802 | const __be32 *of_slot_mask = of_get_property(np, prop_name, &val); |
6131084a JS |
3803 | int i; |
3804 | ||
3805 | if (!of_slot_mask) | |
3806 | return 0; | |
3807 | val /= sizeof(u32); | |
3808 | for (i = 0; i < val; i++) | |
3809 | if (be32_to_cpup(&of_slot_mask[i])) | |
3810 | *mask |= (1 << i); | |
3811 | ||
3812 | return val; | |
3813 | } | |
3814 | ||
89c67857 | 3815 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
6131084a JS |
3816 | unsigned int *tx_mask, |
3817 | unsigned int *rx_mask, | |
89c67857 XL |
3818 | unsigned int *slots, |
3819 | unsigned int *slot_width) | |
3820 | { | |
3821 | u32 val; | |
3822 | int ret; | |
3823 | ||
6131084a JS |
3824 | if (tx_mask) |
3825 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask); | |
3826 | if (rx_mask) | |
3827 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask); | |
3828 | ||
89c67857 XL |
3829 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { |
3830 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3831 | if (ret) | |
3832 | return ret; | |
3833 | ||
3834 | if (slots) | |
3835 | *slots = val; | |
3836 | } | |
3837 | ||
3838 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3839 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3840 | if (ret) | |
3841 | return ret; | |
3842 | ||
3843 | if (slot_width) | |
3844 | *slot_width = val; | |
3845 | } | |
3846 | ||
3847 | return 0; | |
3848 | } | |
3849 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3850 | ||
440a3006 | 3851 | void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, |
5e3cdaa2 KM |
3852 | struct snd_soc_codec_conf *codec_conf, |
3853 | struct device_node *of_node, | |
3854 | const char *propname) | |
3855 | { | |
440a3006 | 3856 | struct device_node *np = card->dev->of_node; |
5e3cdaa2 KM |
3857 | const char *str; |
3858 | int ret; | |
3859 | ||
3860 | ret = of_property_read_string(np, propname, &str); | |
3861 | if (ret < 0) { | |
3862 | /* no prefix is not error */ | |
3863 | return; | |
3864 | } | |
3865 | ||
3866 | codec_conf->of_node = of_node; | |
3867 | codec_conf->name_prefix = str; | |
3868 | } | |
440a3006 | 3869 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix); |
5e3cdaa2 | 3870 | |
2bc644af | 3871 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
a4a54dd5 SW |
3872 | const char *propname) |
3873 | { | |
2bc644af | 3874 | struct device_node *np = card->dev->of_node; |
e3b1e6a1 | 3875 | int num_routes; |
a4a54dd5 SW |
3876 | struct snd_soc_dapm_route *routes; |
3877 | int i, ret; | |
3878 | ||
3879 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3880 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3881 | dev_err(card->dev, |
3882 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3883 | propname); | |
a4a54dd5 SW |
3884 | return -EINVAL; |
3885 | } | |
3886 | num_routes /= 2; | |
3887 | if (!num_routes) { | |
f110bfc7 | 3888 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3889 | propname); |
3890 | return -EINVAL; | |
3891 | } | |
3892 | ||
e3b1e6a1 | 3893 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3894 | GFP_KERNEL); |
3895 | if (!routes) { | |
3896 | dev_err(card->dev, | |
f110bfc7 | 3897 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3898 | return -EINVAL; |
3899 | } | |
3900 | ||
3901 | for (i = 0; i < num_routes; i++) { | |
3902 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3903 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3904 | if (ret) { |
c871bd0b MB |
3905 | dev_err(card->dev, |
3906 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3907 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3908 | return -EINVAL; |
3909 | } | |
3910 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3911 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3912 | if (ret) { |
3913 | dev_err(card->dev, | |
c871bd0b MB |
3914 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3915 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3916 | return -EINVAL; |
3917 | } | |
3918 | } | |
3919 | ||
f23e860e NC |
3920 | card->num_of_dapm_routes = num_routes; |
3921 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
3922 | |
3923 | return 0; | |
3924 | } | |
2bc644af | 3925 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); |
a4a54dd5 | 3926 | |
a7930ed4 | 3927 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3928 | const char *prefix, |
3929 | struct device_node **bitclkmaster, | |
3930 | struct device_node **framemaster) | |
a7930ed4 KM |
3931 | { |
3932 | int ret, i; | |
3933 | char prop[128]; | |
3934 | unsigned int format = 0; | |
3935 | int bit, frame; | |
3936 | const char *str; | |
3937 | struct { | |
3938 | char *name; | |
3939 | unsigned int val; | |
3940 | } of_fmt_table[] = { | |
3941 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3942 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3943 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3944 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3945 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3946 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3947 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3948 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3949 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3950 | }; |
3951 | ||
3952 | if (!prefix) | |
3953 | prefix = ""; | |
3954 | ||
3955 | /* | |
3956 | * check "[prefix]format = xxx" | |
3957 | * SND_SOC_DAIFMT_FORMAT_MASK area | |
3958 | */ | |
3959 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3960 | ret = of_property_read_string(np, prop, &str); | |
3961 | if (ret == 0) { | |
3962 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3963 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3964 | format |= of_fmt_table[i].val; | |
3965 | break; | |
3966 | } | |
3967 | } | |
3968 | } | |
3969 | ||
3970 | /* | |
8c2d6a9f | 3971 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3972 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3973 | */ | |
8c2d6a9f | 3974 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
51930295 | 3975 | if (of_property_read_bool(np, prop)) |
8c2d6a9f KM |
3976 | format |= SND_SOC_DAIFMT_CONT; |
3977 | else | |
3978 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3979 | |
3980 | /* | |
3981 | * check "[prefix]bitclock-inversion" | |
3982 | * check "[prefix]frame-inversion" | |
3983 | * SND_SOC_DAIFMT_INV_MASK area | |
3984 | */ | |
3985 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3986 | bit = !!of_get_property(np, prop, NULL); | |
3987 | ||
3988 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3989 | frame = !!of_get_property(np, prop, NULL); | |
3990 | ||
3991 | switch ((bit << 4) + frame) { | |
3992 | case 0x11: | |
3993 | format |= SND_SOC_DAIFMT_IB_IF; | |
3994 | break; | |
3995 | case 0x10: | |
3996 | format |= SND_SOC_DAIFMT_IB_NF; | |
3997 | break; | |
3998 | case 0x01: | |
3999 | format |= SND_SOC_DAIFMT_NB_IF; | |
4000 | break; | |
4001 | default: | |
4002 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
4003 | break; | |
4004 | } | |
4005 | ||
4006 | /* | |
4007 | * check "[prefix]bitclock-master" | |
4008 | * check "[prefix]frame-master" | |
4009 | * SND_SOC_DAIFMT_MASTER_MASK area | |
4010 | */ | |
4011 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
4012 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
4013 | if (bit && bitclkmaster) |
4014 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
4015 | |
4016 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
4017 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
4018 | if (frame && framemaster) |
4019 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
4020 | |
4021 | switch ((bit << 4) + frame) { | |
4022 | case 0x11: | |
4023 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
4024 | break; | |
4025 | case 0x10: | |
4026 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
4027 | break; | |
4028 | case 0x01: | |
4029 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
4030 | break; | |
4031 | default: | |
4032 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
4033 | break; | |
4034 | } | |
4035 | ||
4036 | return format; | |
4037 | } | |
4038 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
4039 | ||
1ad8ec53 | 4040 | int snd_soc_get_dai_name(struct of_phandle_args *args, |
93b0f3ee | 4041 | const char **dai_name) |
cb470087 KM |
4042 | { |
4043 | struct snd_soc_component *pos; | |
3e0aa8d8 | 4044 | struct device_node *component_of_node; |
93b0f3ee | 4045 | int ret = -EPROBE_DEFER; |
cb470087 KM |
4046 | |
4047 | mutex_lock(&client_mutex); | |
4048 | list_for_each_entry(pos, &component_list, list) { | |
3e0aa8d8 JS |
4049 | component_of_node = pos->dev->of_node; |
4050 | if (!component_of_node && pos->dev->parent) | |
4051 | component_of_node = pos->dev->parent->of_node; | |
4052 | ||
4053 | if (component_of_node != args->np) | |
cb470087 KM |
4054 | continue; |
4055 | ||
6833c452 | 4056 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
4057 | ret = pos->driver->of_xlate_dai_name(pos, |
4058 | args, | |
4059 | dai_name); | |
6833c452 KM |
4060 | } else { |
4061 | int id = -1; | |
4062 | ||
93b0f3ee | 4063 | switch (args->args_count) { |
6833c452 KM |
4064 | case 0: |
4065 | id = 0; /* same as dai_drv[0] */ | |
4066 | break; | |
4067 | case 1: | |
93b0f3ee | 4068 | id = args->args[0]; |
6833c452 KM |
4069 | break; |
4070 | default: | |
4071 | /* not supported */ | |
4072 | break; | |
4073 | } | |
4074 | ||
4075 | if (id < 0 || id >= pos->num_dai) { | |
4076 | ret = -EINVAL; | |
3dcba280 | 4077 | continue; |
6833c452 | 4078 | } |
e41975ed XL |
4079 | |
4080 | ret = 0; | |
4081 | ||
4082 | *dai_name = pos->dai_drv[id].name; | |
4083 | if (!*dai_name) | |
4084 | *dai_name = pos->name; | |
cb470087 KM |
4085 | } |
4086 | ||
cb470087 KM |
4087 | break; |
4088 | } | |
4089 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
4090 | return ret; |
4091 | } | |
1ad8ec53 | 4092 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); |
93b0f3ee JFM |
4093 | |
4094 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
4095 | const char **dai_name) | |
4096 | { | |
4097 | struct of_phandle_args args; | |
4098 | int ret; | |
4099 | ||
4100 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
4101 | "#sound-dai-cells", 0, &args); | |
4102 | if (ret) | |
4103 | return ret; | |
4104 | ||
4105 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
4106 | |
4107 | of_node_put(args.np); | |
4108 | ||
4109 | return ret; | |
4110 | } | |
4111 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
4112 | ||
93b0f3ee JFM |
4113 | /* |
4114 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
4115 | * @dev: Card device | |
4116 | * @of_node: Device node | |
4117 | * @dai_link: DAI link | |
4118 | * | |
4119 | * Builds an array of CODEC DAI components from the DAI link property | |
4120 | * 'sound-dai'. | |
4121 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
4122 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
4123 | * | |
4124 | * Returns 0 for success | |
4125 | */ | |
4126 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
4127 | struct device_node *of_node, | |
4128 | struct snd_soc_dai_link *dai_link) | |
4129 | { | |
4130 | struct of_phandle_args args; | |
4131 | struct snd_soc_dai_link_component *component; | |
4132 | char *name; | |
4133 | int index, num_codecs, ret; | |
4134 | ||
4135 | /* Count the number of CODECs */ | |
4136 | name = "sound-dai"; | |
4137 | num_codecs = of_count_phandle_with_args(of_node, name, | |
4138 | "#sound-dai-cells"); | |
4139 | if (num_codecs <= 0) { | |
4140 | if (num_codecs == -ENOENT) | |
4141 | dev_err(dev, "No 'sound-dai' property\n"); | |
4142 | else | |
4143 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
4144 | return num_codecs; | |
4145 | } | |
4146 | component = devm_kzalloc(dev, | |
4147 | sizeof *component * num_codecs, | |
4148 | GFP_KERNEL); | |
4149 | if (!component) | |
4150 | return -ENOMEM; | |
4151 | dai_link->codecs = component; | |
4152 | dai_link->num_codecs = num_codecs; | |
4153 | ||
4154 | /* Parse the list */ | |
4155 | for (index = 0, component = dai_link->codecs; | |
4156 | index < dai_link->num_codecs; | |
4157 | index++, component++) { | |
4158 | ret = of_parse_phandle_with_args(of_node, name, | |
4159 | "#sound-dai-cells", | |
4160 | index, &args); | |
4161 | if (ret) | |
4162 | goto err; | |
4163 | component->of_node = args.np; | |
4164 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
4165 | if (ret < 0) | |
4166 | goto err; | |
4167 | } | |
4168 | return 0; | |
4169 | err: | |
4170 | for (index = 0, component = dai_link->codecs; | |
4171 | index < dai_link->num_codecs; | |
4172 | index++, component++) { | |
4173 | if (!component->of_node) | |
4174 | break; | |
4175 | of_node_put(component->of_node); | |
4176 | component->of_node = NULL; | |
4177 | } | |
4178 | dai_link->codecs = NULL; | |
4179 | dai_link->num_codecs = 0; | |
4180 | return ret; | |
4181 | } | |
4182 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
4183 | ||
c9b3a40f | 4184 | static int __init snd_soc_init(void) |
db2a4165 | 4185 | { |
6553bf06 | 4186 | snd_soc_debugfs_init(); |
fb257897 MB |
4187 | snd_soc_util_init(); |
4188 | ||
db2a4165 FM |
4189 | return platform_driver_register(&soc_driver); |
4190 | } | |
4abe8e16 | 4191 | module_init(snd_soc_init); |
db2a4165 | 4192 | |
7d8c16a6 | 4193 | static void __exit snd_soc_exit(void) |
db2a4165 | 4194 | { |
fb257897 | 4195 | snd_soc_util_exit(); |
6553bf06 | 4196 | snd_soc_debugfs_exit(); |
fb257897 | 4197 | |
3ff3f64b | 4198 | platform_driver_unregister(&soc_driver); |
db2a4165 | 4199 | } |
db2a4165 FM |
4200 | module_exit(snd_soc_exit); |
4201 | ||
4202 | /* Module information */ | |
d331124d | 4203 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
4204 | MODULE_DESCRIPTION("ALSA SoC Core"); |
4205 | MODULE_LICENSE("GPL"); | |
8b45a209 | 4206 | MODULE_ALIAS("platform:soc-audio"); |