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> |
a180e8b9 | 37 | #include <linux/of_graph.h> |
345233d7 | 38 | #include <linux/dmi.h> |
db2a4165 | 39 | #include <sound/core.h> |
3028eb8c | 40 | #include <sound/jack.h> |
db2a4165 FM |
41 | #include <sound/pcm.h> |
42 | #include <sound/pcm_params.h> | |
43 | #include <sound/soc.h> | |
01d7584c | 44 | #include <sound/soc-dpcm.h> |
8a978234 | 45 | #include <sound/soc-topology.h> |
db2a4165 FM |
46 | #include <sound/initval.h> |
47 | ||
a8b1d34f MB |
48 | #define CREATE_TRACE_POINTS |
49 | #include <trace/events/asoc.h> | |
50 | ||
f0fba2ad LG |
51 | #define NAME_SIZE 32 |
52 | ||
384c89e2 | 53 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
54 | struct dentry *snd_soc_debugfs_root; |
55 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
56 | #endif |
57 | ||
c5af3a2e | 58 | static DEFINE_MUTEX(client_mutex); |
12a48a8c | 59 | static LIST_HEAD(platform_list); |
0d0cf00a | 60 | static LIST_HEAD(codec_list); |
030e79f6 | 61 | static LIST_HEAD(component_list); |
c5af3a2e | 62 | |
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
98faf436 ML |
72 | /* If a DMI filed contain strings in this blacklist (e.g. |
73 | * "Type2 - Board Manufacturer" or "Type1 - TBD by OEM"), it will be taken | |
74 | * as invalid and dropped when setting the card long name from DMI info. | |
75 | */ | |
76 | static const char * const dmi_blacklist[] = { | |
77 | "To be filled by OEM", | |
78 | "TBD by OEM", | |
79 | "Default String", | |
80 | "Board Manufacturer", | |
81 | "Board Vendor Name", | |
82 | "Board Product Name", | |
83 | NULL, /* terminator */ | |
84 | }; | |
85 | ||
2bc9a81e DP |
86 | /* returns the minimum number of bytes needed to represent |
87 | * a particular given value */ | |
88 | static int min_bytes_needed(unsigned long val) | |
89 | { | |
90 | int c = 0; | |
91 | int i; | |
92 | ||
93 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
94 | if (val & (1UL << i)) | |
95 | break; | |
96 | c = (sizeof val * 8) - c; | |
97 | if (!c || (c % 8)) | |
98 | c = (c + 8) / 8; | |
99 | else | |
100 | c /= 8; | |
101 | return c; | |
102 | } | |
103 | ||
13fd179f DP |
104 | /* fill buf which is 'len' bytes with a formatted |
105 | * string of the form 'reg: value\n' */ | |
106 | static int format_register_str(struct snd_soc_codec *codec, | |
107 | unsigned int reg, char *buf, size_t len) | |
108 | { | |
00b317a4 SW |
109 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
110 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f | 111 | int ret; |
13fd179f DP |
112 | |
113 | /* +2 for ': ' and + 1 for '\n' */ | |
114 | if (wordsize + regsize + 2 + 1 != len) | |
115 | return -EINVAL; | |
116 | ||
d6b6c2ca TI |
117 | sprintf(buf, "%.*x: ", wordsize, reg); |
118 | buf += wordsize + 2; | |
13fd179f | 119 | |
d6b6c2ca TI |
120 | ret = snd_soc_read(codec, reg); |
121 | if (ret < 0) | |
122 | memset(buf, 'X', regsize); | |
123 | else | |
124 | sprintf(buf, "%.*x", regsize, ret); | |
125 | buf[regsize] = '\n'; | |
126 | /* no NUL-termination needed */ | |
13fd179f DP |
127 | return 0; |
128 | } | |
129 | ||
2624d5fa | 130 | /* codec register dump */ |
13fd179f DP |
131 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
132 | size_t count, loff_t pos) | |
2624d5fa | 133 | { |
13fd179f | 134 | int i, step = 1; |
2bc9a81e | 135 | int wordsize, regsize; |
13fd179f DP |
136 | int len; |
137 | size_t total = 0; | |
138 | loff_t p = 0; | |
2bc9a81e | 139 | |
00b317a4 SW |
140 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
141 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 142 | |
13fd179f DP |
143 | len = wordsize + regsize + 2 + 1; |
144 | ||
f0fba2ad | 145 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
146 | return 0; |
147 | ||
f0fba2ad LG |
148 | if (codec->driver->reg_cache_step) |
149 | step = codec->driver->reg_cache_step; | |
2624d5fa | 150 | |
f0fba2ad | 151 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
20a0ec27 LPC |
152 | /* only support larger than PAGE_SIZE bytes debugfs |
153 | * entries for the default case */ | |
154 | if (p >= pos) { | |
155 | if (total + len >= count - 1) | |
156 | break; | |
157 | format_register_str(codec, i, buf + total, len); | |
158 | total += len; | |
5164d74d | 159 | } |
20a0ec27 | 160 | p += len; |
2624d5fa MB |
161 | } |
162 | ||
13fd179f | 163 | total = min(total, count - 1); |
2624d5fa | 164 | |
13fd179f | 165 | return total; |
2624d5fa | 166 | } |
13fd179f | 167 | |
2624d5fa MB |
168 | static ssize_t codec_reg_show(struct device *dev, |
169 | struct device_attribute *attr, char *buf) | |
170 | { | |
36ae1a96 | 171 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 172 | |
13fd179f | 173 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
174 | } |
175 | ||
176 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
177 | ||
dbe21408 MB |
178 | static ssize_t pmdown_time_show(struct device *dev, |
179 | struct device_attribute *attr, char *buf) | |
180 | { | |
36ae1a96 | 181 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 182 | |
f0fba2ad | 183 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
184 | } |
185 | ||
186 | static ssize_t pmdown_time_set(struct device *dev, | |
187 | struct device_attribute *attr, | |
188 | const char *buf, size_t count) | |
189 | { | |
36ae1a96 | 190 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 191 | int ret; |
dbe21408 | 192 | |
b785a492 | 193 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
194 | if (ret) |
195 | return ret; | |
dbe21408 MB |
196 | |
197 | return count; | |
198 | } | |
199 | ||
200 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
201 | ||
d29697dc TI |
202 | static struct attribute *soc_dev_attrs[] = { |
203 | &dev_attr_codec_reg.attr, | |
204 | &dev_attr_pmdown_time.attr, | |
205 | NULL | |
206 | }; | |
207 | ||
208 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
209 | struct attribute *attr, int idx) | |
210 | { | |
211 | struct device *dev = kobj_to_dev(kobj); | |
212 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
213 | ||
214 | if (attr == &dev_attr_pmdown_time.attr) | |
215 | return attr->mode; /* always visible */ | |
216 | return rtd->codec ? attr->mode : 0; /* enabled only with codec */ | |
217 | } | |
218 | ||
219 | static const struct attribute_group soc_dapm_dev_group = { | |
220 | .attrs = soc_dapm_dev_attrs, | |
221 | .is_visible = soc_dev_attr_is_visible, | |
222 | }; | |
223 | ||
224 | static const struct attribute_group soc_dev_roup = { | |
225 | .attrs = soc_dev_attrs, | |
226 | .is_visible = soc_dev_attr_is_visible, | |
227 | }; | |
228 | ||
229 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
230 | &soc_dapm_dev_group, | |
231 | &soc_dev_roup, | |
232 | NULL | |
233 | }; | |
234 | ||
2624d5fa | 235 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 236 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 237 | size_t count, loff_t *ppos) |
2624d5fa MB |
238 | { |
239 | ssize_t ret; | |
240 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
241 | char *buf; |
242 | ||
243 | if (*ppos < 0 || !count) | |
244 | return -EINVAL; | |
245 | ||
246 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
247 | if (!buf) |
248 | return -ENOMEM; | |
13fd179f DP |
249 | |
250 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
251 | if (ret >= 0) { | |
252 | if (copy_to_user(user_buf, buf, ret)) { | |
253 | kfree(buf); | |
254 | return -EFAULT; | |
255 | } | |
256 | *ppos += ret; | |
257 | } | |
258 | ||
2624d5fa MB |
259 | kfree(buf); |
260 | return ret; | |
261 | } | |
262 | ||
263 | static ssize_t codec_reg_write_file(struct file *file, | |
264 | const char __user *user_buf, size_t count, loff_t *ppos) | |
265 | { | |
266 | char buf[32]; | |
34e268d8 | 267 | size_t buf_size; |
2624d5fa MB |
268 | char *start = buf; |
269 | unsigned long reg, value; | |
2624d5fa | 270 | struct snd_soc_codec *codec = file->private_data; |
b785a492 | 271 | int ret; |
2624d5fa MB |
272 | |
273 | buf_size = min(count, (sizeof(buf)-1)); | |
274 | if (copy_from_user(buf, user_buf, buf_size)) | |
275 | return -EFAULT; | |
276 | buf[buf_size] = 0; | |
2624d5fa MB |
277 | |
278 | while (*start == ' ') | |
279 | start++; | |
280 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
281 | while (*start == ' ') |
282 | start++; | |
b785a492 JH |
283 | ret = kstrtoul(start, 16, &value); |
284 | if (ret) | |
285 | return ret; | |
0d51a9cb MB |
286 | |
287 | /* Userspace has been fiddling around behind the kernel's back */ | |
373d4d09 | 288 | add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE); |
0d51a9cb | 289 | |
e4f078d8 | 290 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
291 | return buf_size; |
292 | } | |
293 | ||
294 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 295 | .open = simple_open, |
2624d5fa MB |
296 | .read = codec_reg_read_file, |
297 | .write = codec_reg_write_file, | |
6038f373 | 298 | .llseek = default_llseek, |
2624d5fa MB |
299 | }; |
300 | ||
81c7cfd1 | 301 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 302 | { |
6553bf06 LPC |
303 | if (!component->card->debugfs_card_root) |
304 | return; | |
305 | ||
81c7cfd1 LPC |
306 | if (component->debugfs_prefix) { |
307 | char *name; | |
e73f3de5 | 308 | |
81c7cfd1 LPC |
309 | name = kasprintf(GFP_KERNEL, "%s:%s", |
310 | component->debugfs_prefix, component->name); | |
311 | if (name) { | |
312 | component->debugfs_root = debugfs_create_dir(name, | |
313 | component->card->debugfs_card_root); | |
314 | kfree(name); | |
315 | } | |
316 | } else { | |
317 | component->debugfs_root = debugfs_create_dir(component->name, | |
318 | component->card->debugfs_card_root); | |
319 | } | |
e73f3de5 | 320 | |
81c7cfd1 LPC |
321 | if (!component->debugfs_root) { |
322 | dev_warn(component->dev, | |
323 | "ASoC: Failed to create component debugfs directory\n"); | |
324 | return; | |
325 | } | |
e73f3de5 | 326 | |
81c7cfd1 LPC |
327 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
328 | component->debugfs_root); | |
e73f3de5 | 329 | |
81c7cfd1 LPC |
330 | if (component->init_debugfs) |
331 | component->init_debugfs(component); | |
e73f3de5 RK |
332 | } |
333 | ||
81c7cfd1 | 334 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 335 | { |
81c7cfd1 LPC |
336 | debugfs_remove_recursive(component->debugfs_root); |
337 | } | |
d6ce4cf3 | 338 | |
81c7cfd1 LPC |
339 | static void soc_init_codec_debugfs(struct snd_soc_component *component) |
340 | { | |
341 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2624d5fa MB |
342 | |
343 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
81c7cfd1 | 344 | codec->component.debugfs_root, |
2624d5fa MB |
345 | codec, &codec_reg_fops); |
346 | if (!codec->debugfs_reg) | |
10e8aa9a MM |
347 | dev_warn(codec->dev, |
348 | "ASoC: Failed to create codec register debugfs file\n"); | |
731f1ab2 SG |
349 | } |
350 | ||
c3c5a19a MB |
351 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
352 | size_t count, loff_t *ppos) | |
353 | { | |
354 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 355 | ssize_t len, ret = 0; |
c3c5a19a MB |
356 | struct snd_soc_codec *codec; |
357 | ||
358 | if (!buf) | |
359 | return -ENOMEM; | |
360 | ||
34e81ab4 LPC |
361 | mutex_lock(&client_mutex); |
362 | ||
2b194f9d MB |
363 | list_for_each_entry(codec, &codec_list, list) { |
364 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 365 | codec->component.name); |
2b194f9d MB |
366 | if (len >= 0) |
367 | ret += len; | |
368 | if (ret > PAGE_SIZE) { | |
369 | ret = PAGE_SIZE; | |
370 | break; | |
371 | } | |
372 | } | |
c3c5a19a | 373 | |
34e81ab4 LPC |
374 | mutex_unlock(&client_mutex); |
375 | ||
c3c5a19a MB |
376 | if (ret >= 0) |
377 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
378 | ||
379 | kfree(buf); | |
380 | ||
381 | return ret; | |
382 | } | |
383 | ||
384 | static const struct file_operations codec_list_fops = { | |
385 | .read = codec_list_read_file, | |
386 | .llseek = default_llseek,/* read accesses f_pos */ | |
387 | }; | |
388 | ||
f3208780 MB |
389 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
390 | size_t count, loff_t *ppos) | |
391 | { | |
392 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 393 | ssize_t len, ret = 0; |
1438c2f6 | 394 | struct snd_soc_component *component; |
f3208780 MB |
395 | struct snd_soc_dai *dai; |
396 | ||
397 | if (!buf) | |
398 | return -ENOMEM; | |
399 | ||
34e81ab4 LPC |
400 | mutex_lock(&client_mutex); |
401 | ||
1438c2f6 LPC |
402 | list_for_each_entry(component, &component_list, list) { |
403 | list_for_each_entry(dai, &component->dai_list, list) { | |
404 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
405 | dai->name); | |
406 | if (len >= 0) | |
407 | ret += len; | |
408 | if (ret > PAGE_SIZE) { | |
409 | ret = PAGE_SIZE; | |
410 | break; | |
411 | } | |
2b194f9d MB |
412 | } |
413 | } | |
f3208780 | 414 | |
34e81ab4 LPC |
415 | mutex_unlock(&client_mutex); |
416 | ||
2b194f9d | 417 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
418 | |
419 | kfree(buf); | |
420 | ||
421 | return ret; | |
422 | } | |
423 | ||
424 | static const struct file_operations dai_list_fops = { | |
425 | .read = dai_list_read_file, | |
426 | .llseek = default_llseek,/* read accesses f_pos */ | |
427 | }; | |
428 | ||
19c7ac27 MB |
429 | static ssize_t platform_list_read_file(struct file *file, |
430 | char __user *user_buf, | |
431 | size_t count, loff_t *ppos) | |
432 | { | |
433 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 434 | ssize_t len, ret = 0; |
19c7ac27 MB |
435 | struct snd_soc_platform *platform; |
436 | ||
437 | if (!buf) | |
438 | return -ENOMEM; | |
439 | ||
34e81ab4 LPC |
440 | mutex_lock(&client_mutex); |
441 | ||
2b194f9d MB |
442 | list_for_each_entry(platform, &platform_list, list) { |
443 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 444 | platform->component.name); |
2b194f9d MB |
445 | if (len >= 0) |
446 | ret += len; | |
447 | if (ret > PAGE_SIZE) { | |
448 | ret = PAGE_SIZE; | |
449 | break; | |
450 | } | |
451 | } | |
19c7ac27 | 452 | |
34e81ab4 LPC |
453 | mutex_unlock(&client_mutex); |
454 | ||
2b194f9d | 455 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
456 | |
457 | kfree(buf); | |
458 | ||
459 | return ret; | |
460 | } | |
461 | ||
462 | static const struct file_operations platform_list_fops = { | |
463 | .read = platform_list_read_file, | |
464 | .llseek = default_llseek,/* read accesses f_pos */ | |
465 | }; | |
466 | ||
a6052154 JN |
467 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
468 | { | |
6553bf06 LPC |
469 | if (!snd_soc_debugfs_root) |
470 | return; | |
471 | ||
a6052154 | 472 | card->debugfs_card_root = debugfs_create_dir(card->name, |
8a9dab1a | 473 | snd_soc_debugfs_root); |
3a45b867 | 474 | if (!card->debugfs_card_root) { |
a6052154 | 475 | dev_warn(card->dev, |
7c08be84 | 476 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
477 | return; |
478 | } | |
479 | ||
480 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
481 | card->debugfs_card_root, | |
482 | &card->pop_time); | |
483 | if (!card->debugfs_pop_time) | |
484 | dev_warn(card->dev, | |
f110bfc7 | 485 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
486 | } |
487 | ||
488 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
489 | { | |
490 | debugfs_remove_recursive(card->debugfs_card_root); | |
491 | } | |
492 | ||
6553bf06 LPC |
493 | |
494 | static void snd_soc_debugfs_init(void) | |
495 | { | |
496 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); | |
497 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
498 | pr_warn("ASoC: Failed to create debugfs directory\n"); | |
499 | snd_soc_debugfs_root = NULL; | |
500 | return; | |
501 | } | |
502 | ||
503 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, | |
504 | &codec_list_fops)) | |
505 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
506 | ||
507 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, | |
508 | &dai_list_fops)) | |
509 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
510 | ||
511 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, | |
512 | &platform_list_fops)) | |
513 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
514 | } | |
515 | ||
516 | static void snd_soc_debugfs_exit(void) | |
517 | { | |
518 | debugfs_remove_recursive(snd_soc_debugfs_root); | |
519 | } | |
520 | ||
2624d5fa MB |
521 | #else |
522 | ||
81c7cfd1 | 523 | #define soc_init_codec_debugfs NULL |
b95fccbc | 524 | |
81c7cfd1 LPC |
525 | static inline void soc_init_component_debugfs( |
526 | struct snd_soc_component *component) | |
731f1ab2 SG |
527 | { |
528 | } | |
529 | ||
81c7cfd1 LPC |
530 | static inline void soc_cleanup_component_debugfs( |
531 | struct snd_soc_component *component) | |
731f1ab2 SG |
532 | { |
533 | } | |
534 | ||
b95fccbc AL |
535 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
536 | { | |
537 | } | |
538 | ||
539 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
540 | { | |
541 | } | |
6553bf06 LPC |
542 | |
543 | static inline void snd_soc_debugfs_init(void) | |
544 | { | |
545 | } | |
546 | ||
547 | static inline void snd_soc_debugfs_exit(void) | |
548 | { | |
549 | } | |
550 | ||
2624d5fa MB |
551 | #endif |
552 | ||
47c88fff LG |
553 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
554 | const char *dai_link, int stream) | |
555 | { | |
1a497983 | 556 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 557 | |
1a497983 ML |
558 | list_for_each_entry(rtd, &card->rtd_list, list) { |
559 | if (rtd->dai_link->no_pcm && | |
560 | !strcmp(rtd->dai_link->name, dai_link)) | |
561 | return rtd->pcm->streams[stream].substream; | |
47c88fff | 562 | } |
f110bfc7 | 563 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
564 | return NULL; |
565 | } | |
566 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
567 | ||
1a497983 ML |
568 | static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( |
569 | struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) | |
570 | { | |
571 | struct snd_soc_pcm_runtime *rtd; | |
572 | ||
573 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
574 | if (!rtd) | |
575 | return NULL; | |
576 | ||
577 | rtd->card = card; | |
578 | rtd->dai_link = dai_link; | |
579 | rtd->codec_dais = kzalloc(sizeof(struct snd_soc_dai *) * | |
580 | dai_link->num_codecs, | |
581 | GFP_KERNEL); | |
582 | if (!rtd->codec_dais) { | |
583 | kfree(rtd); | |
584 | return NULL; | |
585 | } | |
586 | ||
587 | return rtd; | |
588 | } | |
589 | ||
590 | static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) | |
591 | { | |
592 | if (rtd && rtd->codec_dais) | |
593 | kfree(rtd->codec_dais); | |
594 | kfree(rtd); | |
595 | } | |
596 | ||
597 | static void soc_add_pcm_runtime(struct snd_soc_card *card, | |
598 | struct snd_soc_pcm_runtime *rtd) | |
599 | { | |
600 | list_add_tail(&rtd->list, &card->rtd_list); | |
601 | rtd->num = card->num_rtd; | |
602 | card->num_rtd++; | |
603 | } | |
604 | ||
605 | static void soc_remove_pcm_runtimes(struct snd_soc_card *card) | |
606 | { | |
607 | struct snd_soc_pcm_runtime *rtd, *_rtd; | |
608 | ||
609 | list_for_each_entry_safe(rtd, _rtd, &card->rtd_list, list) { | |
610 | list_del(&rtd->list); | |
611 | soc_free_pcm_runtime(rtd); | |
612 | } | |
613 | ||
614 | card->num_rtd = 0; | |
615 | } | |
616 | ||
47c88fff LG |
617 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, |
618 | const char *dai_link) | |
619 | { | |
1a497983 | 620 | struct snd_soc_pcm_runtime *rtd; |
47c88fff | 621 | |
1a497983 ML |
622 | list_for_each_entry(rtd, &card->rtd_list, list) { |
623 | if (!strcmp(rtd->dai_link->name, dai_link)) | |
624 | return rtd; | |
47c88fff | 625 | } |
f110bfc7 | 626 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
627 | return NULL; |
628 | } | |
629 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
630 | ||
9d58a077 RF |
631 | static void codec2codec_close_delayed_work(struct work_struct *work) |
632 | { | |
633 | /* Currently nothing to do for c2c links | |
634 | * Since c2c links are internal nodes in the DAPM graph and | |
635 | * don't interface with the outside world or application layer | |
636 | * we don't have to do any special handling on close. | |
637 | */ | |
638 | } | |
639 | ||
6f8ab4ac | 640 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 641 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 642 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 643 | { |
6f8ab4ac | 644 | struct snd_soc_card *card = dev_get_drvdata(dev); |
d9fc4063 | 645 | struct snd_soc_component *component; |
1a497983 ML |
646 | struct snd_soc_pcm_runtime *rtd; |
647 | int i; | |
db2a4165 | 648 | |
c5599b87 LPC |
649 | /* If the card is not initialized yet there is nothing to do */ |
650 | if (!card->instantiated) | |
e3509ff0 DM |
651 | return 0; |
652 | ||
6ed25978 AG |
653 | /* Due to the resume being scheduled into a workqueue we could |
654 | * suspend before that's finished - wait for it to complete. | |
655 | */ | |
f0fba2ad LG |
656 | snd_power_lock(card->snd_card); |
657 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
658 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
659 | |
660 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 661 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 662 | |
a00f90f9 | 663 | /* mute any active DACs */ |
1a497983 | 664 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 665 | |
1a497983 | 666 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
667 | continue; |
668 | ||
1a497983 ML |
669 | for (i = 0; i < rtd->num_codecs; i++) { |
670 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
671 | struct snd_soc_dai_driver *drv = dai->driver; |
672 | ||
673 | if (drv->ops->digital_mute && dai->playback_active) | |
674 | drv->ops->digital_mute(dai, 1); | |
675 | } | |
db2a4165 FM |
676 | } |
677 | ||
4ccab3e7 | 678 | /* suspend all pcms */ |
1a497983 ML |
679 | list_for_each_entry(rtd, &card->rtd_list, list) { |
680 | if (rtd->dai_link->ignore_suspend) | |
3efab7dc MB |
681 | continue; |
682 | ||
1a497983 | 683 | snd_pcm_suspend_all(rtd->pcm); |
3efab7dc | 684 | } |
4ccab3e7 | 685 | |
87506549 | 686 | if (card->suspend_pre) |
70b2ac12 | 687 | card->suspend_pre(card); |
db2a4165 | 688 | |
1a497983 ML |
689 | list_for_each_entry(rtd, &card->rtd_list, list) { |
690 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 691 | |
1a497983 | 692 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
693 | continue; |
694 | ||
bc263214 | 695 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 696 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
697 | } |
698 | ||
37660b6d | 699 | /* close any waiting streams */ |
1a497983 ML |
700 | list_for_each_entry(rtd, &card->rtd_list, list) |
701 | flush_delayed_work(&rtd->delayed_work); | |
db2a4165 | 702 | |
1a497983 | 703 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 704 | |
1a497983 | 705 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
706 | continue; |
707 | ||
1a497983 | 708 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 709 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 710 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 711 | |
1a497983 | 712 | snd_soc_dapm_stream_event(rtd, |
7bd3a6f3 | 713 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 714 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
715 | } |
716 | ||
8be4da29 LPC |
717 | /* Recheck all endpoints too, their state is affected by suspend */ |
718 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
719 | snd_soc_dapm_sync(&card->dapm); |
720 | ||
9178feb4 | 721 | /* suspend all COMPONENTs */ |
d9fc4063 KM |
722 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
723 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); | |
d9fc4063 | 724 | |
9178feb4 | 725 | /* If there are paths active then the COMPONENT will be held with |
f0fba2ad | 726 | * bias _ON and should not be suspended. */ |
9178feb4 | 727 | if (!component->suspended) { |
4890140f | 728 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
f0fba2ad | 729 | case SND_SOC_BIAS_STANDBY: |
125a25da | 730 | /* |
9178feb4 | 731 | * If the COMPONENT is capable of idle |
125a25da MB |
732 | * bias off then being in STANDBY |
733 | * means it's doing something, | |
734 | * otherwise fall through. | |
735 | */ | |
4890140f | 736 | if (dapm->idle_bias_off) { |
9178feb4 | 737 | dev_dbg(component->dev, |
10e8aa9a | 738 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
739 | break; |
740 | } | |
a8093297 | 741 | |
f0fba2ad | 742 | case SND_SOC_BIAS_OFF: |
9178feb4 KM |
743 | if (component->suspend) |
744 | component->suspend(component); | |
745 | component->suspended = 1; | |
746 | if (component->regmap) | |
747 | regcache_mark_dirty(component->regmap); | |
988e8cc4 | 748 | /* deactivate pins to sleep state */ |
9178feb4 | 749 | pinctrl_pm_select_sleep_state(component->dev); |
f0fba2ad LG |
750 | break; |
751 | default: | |
9178feb4 KM |
752 | dev_dbg(component->dev, |
753 | "ASoC: COMPONENT is on over suspend\n"); | |
f0fba2ad LG |
754 | break; |
755 | } | |
1547aba9 MB |
756 | } |
757 | } | |
db2a4165 | 758 | |
1a497983 ML |
759 | list_for_each_entry(rtd, &card->rtd_list, list) { |
760 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 761 | |
1a497983 | 762 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
763 | continue; |
764 | ||
bc263214 | 765 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 766 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
767 | |
768 | /* deactivate pins to sleep state */ | |
769 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
770 | } |
771 | ||
87506549 | 772 | if (card->suspend_post) |
70b2ac12 | 773 | card->suspend_post(card); |
db2a4165 FM |
774 | |
775 | return 0; | |
776 | } | |
6f8ab4ac | 777 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 778 | |
6ed25978 AG |
779 | /* deferred resume work, so resume can complete before we finished |
780 | * setting our codec back up, which can be very slow on I2C | |
781 | */ | |
782 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 783 | { |
f0fba2ad LG |
784 | struct snd_soc_card *card = |
785 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1a497983 | 786 | struct snd_soc_pcm_runtime *rtd; |
d9fc4063 | 787 | struct snd_soc_component *component; |
1a497983 | 788 | int i; |
db2a4165 | 789 | |
6ed25978 AG |
790 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
791 | * so userspace apps are blocked from touching us | |
792 | */ | |
793 | ||
f110bfc7 | 794 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 795 | |
9949788b | 796 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 797 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 798 | |
87506549 | 799 | if (card->resume_pre) |
70b2ac12 | 800 | card->resume_pre(card); |
db2a4165 | 801 | |
bc263214 | 802 | /* resume control bus DAIs */ |
1a497983 ML |
803 | list_for_each_entry(rtd, &card->rtd_list, list) { |
804 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 805 | |
1a497983 | 806 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
807 | continue; |
808 | ||
bc263214 | 809 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
810 | cpu_dai->driver->resume(cpu_dai); |
811 | } | |
812 | ||
d9fc4063 | 813 | list_for_each_entry(component, &card->component_dev_list, card_list) { |
9178feb4 KM |
814 | if (component->suspended) { |
815 | if (component->resume) | |
816 | component->resume(component); | |
817 | component->suspended = 0; | |
1547aba9 MB |
818 | } |
819 | } | |
db2a4165 | 820 | |
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 | 826 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 827 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 828 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 829 | |
1a497983 | 830 | snd_soc_dapm_stream_event(rtd, |
d9b0951b | 831 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 832 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
833 | } |
834 | ||
3ff3f64b | 835 | /* unmute any active DACs */ |
1a497983 | 836 | list_for_each_entry(rtd, &card->rtd_list, list) { |
3efab7dc | 837 | |
1a497983 | 838 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
839 | continue; |
840 | ||
1a497983 ML |
841 | for (i = 0; i < rtd->num_codecs; i++) { |
842 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
88bd870f BC |
843 | struct snd_soc_dai_driver *drv = dai->driver; |
844 | ||
845 | if (drv->ops->digital_mute && dai->playback_active) | |
846 | drv->ops->digital_mute(dai, 0); | |
847 | } | |
db2a4165 FM |
848 | } |
849 | ||
1a497983 ML |
850 | list_for_each_entry(rtd, &card->rtd_list, list) { |
851 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3efab7dc | 852 | |
1a497983 | 853 | if (rtd->dai_link->ignore_suspend) |
3efab7dc MB |
854 | continue; |
855 | ||
bc263214 | 856 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 857 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
858 | } |
859 | ||
87506549 | 860 | if (card->resume_post) |
70b2ac12 | 861 | card->resume_post(card); |
db2a4165 | 862 | |
f110bfc7 | 863 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 | 864 | |
8be4da29 LPC |
865 | /* Recheck all endpoints too, their state is affected by suspend */ |
866 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 867 | snd_soc_dapm_sync(&card->dapm); |
1a7aaa58 JK |
868 | |
869 | /* userspace can access us now we are back as we were before */ | |
870 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); | |
6ed25978 AG |
871 | } |
872 | ||
873 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 874 | int snd_soc_resume(struct device *dev) |
6ed25978 | 875 | { |
6f8ab4ac | 876 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 | 877 | bool bus_control = false; |
1a497983 | 878 | struct snd_soc_pcm_runtime *rtd; |
b9dd94a8 | 879 | |
c5599b87 LPC |
880 | /* If the card is not initialized yet there is nothing to do */ |
881 | if (!card->instantiated) | |
5ff1ddf2 EM |
882 | return 0; |
883 | ||
988e8cc4 | 884 | /* activate pins from sleep state */ |
1a497983 | 885 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
886 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
887 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
888 | int j; | |
889 | ||
988e8cc4 NC |
890 | if (cpu_dai->active) |
891 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
892 | |
893 | for (j = 0; j < rtd->num_codecs; j++) { | |
894 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
895 | if (codec_dai->active) | |
896 | pinctrl_pm_select_default_state(codec_dai->dev); | |
897 | } | |
988e8cc4 NC |
898 | } |
899 | ||
bc263214 LPC |
900 | /* |
901 | * DAIs that also act as the control bus master might have other drivers | |
902 | * hanging off them so need to resume immediately. Other drivers don't | |
903 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
904 | * due to I/O costs and anti-pop so handle them out of line. |
905 | */ | |
1a497983 ML |
906 | list_for_each_entry(rtd, &card->rtd_list, list) { |
907 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
bc263214 | 908 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 909 | } |
bc263214 LPC |
910 | if (bus_control) { |
911 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
912 | soc_resume_deferred(&card->deferred_resume_work); |
913 | } else { | |
f110bfc7 | 914 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 915 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 916 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 917 | } |
6ed25978 | 918 | |
db2a4165 FM |
919 | return 0; |
920 | } | |
6f8ab4ac | 921 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 922 | #else |
6f8ab4ac MB |
923 | #define snd_soc_suspend NULL |
924 | #define snd_soc_resume NULL | |
db2a4165 FM |
925 | #endif |
926 | ||
85e7652d | 927 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
928 | }; |
929 | ||
65d9361f LPC |
930 | static struct snd_soc_component *soc_find_component( |
931 | const struct device_node *of_node, const char *name) | |
12023a9a | 932 | { |
65d9361f | 933 | struct snd_soc_component *component; |
12023a9a | 934 | |
34e81ab4 LPC |
935 | lockdep_assert_held(&client_mutex); |
936 | ||
65d9361f LPC |
937 | list_for_each_entry(component, &component_list, list) { |
938 | if (of_node) { | |
939 | if (component->dev->of_node == of_node) | |
940 | return component; | |
941 | } else if (strcmp(component->name, name) == 0) { | |
942 | return component; | |
12023a9a | 943 | } |
12023a9a MLC |
944 | } |
945 | ||
946 | return NULL; | |
947 | } | |
948 | ||
fbb88b5c ML |
949 | /** |
950 | * snd_soc_find_dai - Find a registered DAI | |
951 | * | |
952 | * @dlc: name of the DAI and optional component info to match | |
953 | * | |
ad61dd30 | 954 | * This function will search all registered components and their DAIs to |
fbb88b5c ML |
955 | * find the DAI of the same name. The component's of_node and name |
956 | * should also match if being specified. | |
957 | * | |
958 | * Return: pointer of DAI, or NULL if not found. | |
959 | */ | |
305e9020 | 960 | struct snd_soc_dai *snd_soc_find_dai( |
14621c7e | 961 | const struct snd_soc_dai_link_component *dlc) |
12023a9a | 962 | { |
14621c7e LPC |
963 | struct snd_soc_component *component; |
964 | struct snd_soc_dai *dai; | |
3e0aa8d8 | 965 | struct device_node *component_of_node; |
12023a9a | 966 | |
34e81ab4 LPC |
967 | lockdep_assert_held(&client_mutex); |
968 | ||
14621c7e LPC |
969 | /* Find CPU DAI from registered DAIs*/ |
970 | list_for_each_entry(component, &component_list, list) { | |
3e0aa8d8 JS |
971 | component_of_node = component->dev->of_node; |
972 | if (!component_of_node && component->dev->parent) | |
973 | component_of_node = component->dev->parent->of_node; | |
974 | ||
975 | if (dlc->of_node && component_of_node != dlc->of_node) | |
14621c7e | 976 | continue; |
1ffae361 | 977 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
978 | continue; |
979 | list_for_each_entry(dai, &component->dai_list, list) { | |
980 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 981 | continue; |
12023a9a | 982 | |
14621c7e | 983 | return dai; |
12023a9a MLC |
984 | } |
985 | } | |
986 | ||
987 | return NULL; | |
988 | } | |
305e9020 | 989 | EXPORT_SYMBOL_GPL(snd_soc_find_dai); |
12023a9a | 990 | |
17fb1755 ML |
991 | |
992 | /** | |
993 | * snd_soc_find_dai_link - Find a DAI link | |
994 | * | |
995 | * @card: soc card | |
996 | * @id: DAI link ID to match | |
997 | * @name: DAI link name to match, optional | |
8abab35f | 998 | * @stream_name: DAI link stream name to match, optional |
17fb1755 ML |
999 | * |
1000 | * This function will search all existing DAI links of the soc card to | |
1001 | * find the link of the same ID. Since DAI links may not have their | |
1002 | * unique ID, so name and stream name should also match if being | |
1003 | * specified. | |
1004 | * | |
1005 | * Return: pointer of DAI link, or NULL if not found. | |
1006 | */ | |
1007 | struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, | |
1008 | int id, const char *name, | |
1009 | const char *stream_name) | |
1010 | { | |
1011 | struct snd_soc_dai_link *link, *_link; | |
1012 | ||
1013 | lockdep_assert_held(&client_mutex); | |
1014 | ||
1015 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { | |
1016 | if (link->id != id) | |
1017 | continue; | |
1018 | ||
1019 | if (name && (!link->name || strcmp(name, link->name))) | |
1020 | continue; | |
1021 | ||
1022 | if (stream_name && (!link->stream_name | |
1023 | || strcmp(stream_name, link->stream_name))) | |
1024 | continue; | |
1025 | ||
1026 | return link; | |
1027 | } | |
1028 | ||
1029 | return NULL; | |
1030 | } | |
1031 | EXPORT_SYMBOL_GPL(snd_soc_find_dai_link); | |
1032 | ||
49a5ba1c ML |
1033 | static bool soc_is_dai_link_bound(struct snd_soc_card *card, |
1034 | struct snd_soc_dai_link *dai_link) | |
1035 | { | |
1036 | struct snd_soc_pcm_runtime *rtd; | |
1037 | ||
1038 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
1039 | if (rtd->dai_link == dai_link) | |
1040 | return true; | |
1041 | } | |
1042 | ||
1043 | return false; | |
1044 | } | |
1045 | ||
6f2f1ff0 ML |
1046 | static int soc_bind_dai_link(struct snd_soc_card *card, |
1047 | struct snd_soc_dai_link *dai_link) | |
db2a4165 | 1048 | { |
1a497983 | 1049 | struct snd_soc_pcm_runtime *rtd; |
88bd870f | 1050 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 1051 | struct snd_soc_dai_link_component cpu_dai_component; |
1a497983 | 1052 | struct snd_soc_dai **codec_dais; |
435c5e25 | 1053 | struct snd_soc_platform *platform; |
06859fca | 1054 | struct device_node *platform_of_node; |
848dd8be | 1055 | const char *platform_name; |
88bd870f | 1056 | int i; |
435c5e25 | 1057 | |
6f2f1ff0 | 1058 | dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); |
435c5e25 | 1059 | |
49a5ba1c ML |
1060 | if (soc_is_dai_link_bound(card, dai_link)) { |
1061 | dev_dbg(card->dev, "ASoC: dai link %s already bound\n", | |
1062 | dai_link->name); | |
1063 | return 0; | |
1064 | } | |
435c5e25 | 1065 | |
513cb311 SM |
1066 | rtd = soc_new_pcm_runtime(card, dai_link); |
1067 | if (!rtd) | |
1068 | return -ENOMEM; | |
1069 | ||
14621c7e LPC |
1070 | cpu_dai_component.name = dai_link->cpu_name; |
1071 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
1072 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
1073 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 1074 | if (!rtd->cpu_dai) { |
f110bfc7 | 1075 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b | 1076 | dai_link->cpu_dai_name); |
1a497983 | 1077 | goto _err_defer; |
f0fba2ad LG |
1078 | } |
1079 | ||
88bd870f | 1080 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 1081 | |
88bd870f | 1082 | /* Find CODEC from registered CODECs */ |
1a497983 | 1083 | codec_dais = rtd->codec_dais; |
88bd870f | 1084 | for (i = 0; i < rtd->num_codecs; i++) { |
14621c7e | 1085 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
1086 | if (!codec_dais[i]) { |
1087 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
1088 | codecs[i].dai_name); | |
1a497983 | 1089 | goto _err_defer; |
88bd870f | 1090 | } |
12023a9a MLC |
1091 | } |
1092 | ||
88bd870f BC |
1093 | /* Single codec links expect codec and codec_dai in runtime data */ |
1094 | rtd->codec_dai = codec_dais[0]; | |
1095 | rtd->codec = rtd->codec_dai->codec; | |
1096 | ||
848dd8be MB |
1097 | /* if there's no platform we match on the empty platform */ |
1098 | platform_name = dai_link->platform_name; | |
5a504963 | 1099 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
1100 | platform_name = "snd-soc-dummy"; |
1101 | ||
b19e6e7b | 1102 | /* find one from the set of registered platforms */ |
f0fba2ad | 1103 | list_for_each_entry(platform, &platform_list, list) { |
06859fca CK |
1104 | platform_of_node = platform->dev->of_node; |
1105 | if (!platform_of_node && platform->dev->parent->of_node) | |
1106 | platform_of_node = platform->dev->parent->of_node; | |
1107 | ||
5a504963 | 1108 | if (dai_link->platform_of_node) { |
06859fca | 1109 | if (platform_of_node != dai_link->platform_of_node) |
5a504963 SW |
1110 | continue; |
1111 | } else { | |
f4333203 | 1112 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
1113 | continue; |
1114 | } | |
2610ab77 SW |
1115 | |
1116 | rtd->platform = platform; | |
02a06d30 | 1117 | } |
b19e6e7b | 1118 | if (!rtd->platform) { |
f110bfc7 | 1119 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 1120 | dai_link->platform_name); |
70fcad49 | 1121 | goto _err_defer; |
f0fba2ad | 1122 | } |
b19e6e7b | 1123 | |
1a497983 | 1124 | soc_add_pcm_runtime(card, rtd); |
b19e6e7b | 1125 | return 0; |
1a497983 ML |
1126 | |
1127 | _err_defer: | |
1128 | soc_free_pcm_runtime(rtd); | |
1129 | return -EPROBE_DEFER; | |
f0fba2ad LG |
1130 | } |
1131 | ||
f1d45cc3 | 1132 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 1133 | { |
abd31b32 | 1134 | if (!component->card) |
70090bbb | 1135 | return; |
d12cd198 | 1136 | |
d9fc4063 | 1137 | list_del(&component->card_list); |
589c3563 | 1138 | |
f1d45cc3 LPC |
1139 | if (component->remove) |
1140 | component->remove(component); | |
589c3563 | 1141 | |
f1d45cc3 | 1142 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 1143 | |
f1d45cc3 | 1144 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1145 | component->card = NULL; |
f1d45cc3 | 1146 | module_put(component->dev->driver->owner); |
589c3563 JN |
1147 | } |
1148 | ||
e60cd14f | 1149 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 1150 | { |
f0fba2ad LG |
1151 | int err; |
1152 | ||
e60cd14f LPC |
1153 | if (dai && dai->probed && |
1154 | dai->driver->remove_order == order) { | |
1155 | if (dai->driver->remove) { | |
1156 | err = dai->driver->remove(dai); | |
f0fba2ad | 1157 | if (err < 0) |
e60cd14f | 1158 | dev_err(dai->dev, |
f110bfc7 | 1159 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 1160 | dai->name, err); |
6b05eda6 | 1161 | } |
e60cd14f | 1162 | dai->probed = 0; |
f0fba2ad | 1163 | } |
b0aa88af MLC |
1164 | } |
1165 | ||
1a497983 ML |
1166 | static void soc_remove_link_dais(struct snd_soc_card *card, |
1167 | struct snd_soc_pcm_runtime *rtd, int order) | |
b0aa88af | 1168 | { |
e60cd14f | 1169 | int i; |
b0aa88af MLC |
1170 | |
1171 | /* unregister the rtd device */ | |
1172 | if (rtd->dev_registered) { | |
b0aa88af MLC |
1173 | device_unregister(rtd->dev); |
1174 | rtd->dev_registered = 0; | |
1175 | } | |
1176 | ||
1177 | /* remove the CODEC DAI */ | |
88bd870f | 1178 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 1179 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 1180 | |
e60cd14f | 1181 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 1182 | } |
db2a4165 | 1183 | |
1a497983 ML |
1184 | static void soc_remove_link_components(struct snd_soc_card *card, |
1185 | struct snd_soc_pcm_runtime *rtd, int order) | |
62ae68fa | 1186 | { |
62ae68fa | 1187 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
62ae68fa | 1188 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1189 | struct snd_soc_component *component; |
88bd870f | 1190 | int i; |
62ae68fa SW |
1191 | |
1192 | /* remove the platform */ | |
70090bbb | 1193 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1194 | soc_remove_component(&platform->component); |
62ae68fa SW |
1195 | |
1196 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1197 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1198 | component = rtd->codec_dais[i]->component; |
70090bbb | 1199 | if (component->driver->remove_order == order) |
61aca564 | 1200 | soc_remove_component(component); |
62ae68fa SW |
1201 | } |
1202 | ||
1203 | /* remove any CPU-side CODEC */ | |
1204 | if (cpu_dai) { | |
70090bbb | 1205 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1206 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1207 | } |
1208 | } | |
1209 | ||
0671fd8e KM |
1210 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1211 | { | |
1a497983 ML |
1212 | int order; |
1213 | struct snd_soc_pcm_runtime *rtd; | |
f8f80361 | 1214 | struct snd_soc_dai_link *link, *_link; |
0671fd8e | 1215 | |
0168bf0d LG |
1216 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1217 | order++) { | |
1a497983 ML |
1218 | list_for_each_entry(rtd, &card->rtd_list, list) |
1219 | soc_remove_link_dais(card, rtd, order); | |
62ae68fa SW |
1220 | } |
1221 | ||
1222 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1223 | order++) { | |
1a497983 ML |
1224 | list_for_each_entry(rtd, &card->rtd_list, list) |
1225 | soc_remove_link_components(card, rtd, order); | |
0168bf0d | 1226 | } |
62ae68fa | 1227 | |
f8f80361 ML |
1228 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1229 | if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK) | |
1230 | dev_warn(card->dev, "Topology forgot to remove link %s?\n", | |
1231 | link->name); | |
1232 | ||
1233 | list_del(&link->list); | |
1234 | card->num_dai_links--; | |
1235 | } | |
0671fd8e KM |
1236 | } |
1237 | ||
923c5e61 ML |
1238 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
1239 | struct snd_soc_dai_link *dai_link) | |
1240 | { | |
1241 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
1242 | if (dai_link->codec_name || dai_link->codec_of_node || | |
1243 | dai_link->codec_dai_name) { | |
1244 | dai_link->num_codecs = 1; | |
1245 | ||
1246 | dai_link->codecs = devm_kzalloc(card->dev, | |
1247 | sizeof(struct snd_soc_dai_link_component), | |
1248 | GFP_KERNEL); | |
1249 | if (!dai_link->codecs) | |
1250 | return -ENOMEM; | |
1251 | ||
1252 | dai_link->codecs[0].name = dai_link->codec_name; | |
1253 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
1254 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
1255 | } | |
1256 | ||
1257 | if (!dai_link->codecs) { | |
1258 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
1259 | return -EINVAL; | |
1260 | } | |
1261 | ||
1262 | return 0; | |
1263 | } | |
1264 | ||
1265 | static int soc_init_dai_link(struct snd_soc_card *card, | |
1266 | struct snd_soc_dai_link *link) | |
1267 | { | |
1268 | int i, ret; | |
1269 | ||
1270 | ret = snd_soc_init_multicodec(card, link); | |
1271 | if (ret) { | |
1272 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
1273 | return ret; | |
1274 | } | |
1275 | ||
1276 | for (i = 0; i < link->num_codecs; i++) { | |
1277 | /* | |
1278 | * Codec must be specified by 1 of name or OF node, | |
1279 | * not both or neither. | |
1280 | */ | |
1281 | if (!!link->codecs[i].name == | |
1282 | !!link->codecs[i].of_node) { | |
1283 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
1284 | link->name); | |
1285 | return -EINVAL; | |
1286 | } | |
1287 | /* Codec DAI name must be specified */ | |
1288 | if (!link->codecs[i].dai_name) { | |
1289 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
1290 | link->name); | |
1291 | return -EINVAL; | |
1292 | } | |
1293 | } | |
1294 | ||
1295 | /* | |
1296 | * Platform may be specified by either name or OF node, but | |
1297 | * can be left unspecified, and a dummy platform will be used. | |
1298 | */ | |
1299 | if (link->platform_name && link->platform_of_node) { | |
1300 | dev_err(card->dev, | |
1301 | "ASoC: Both platform name/of_node are set for %s\n", | |
1302 | link->name); | |
1303 | return -EINVAL; | |
1304 | } | |
1305 | ||
1306 | /* | |
1307 | * CPU device may be specified by either name or OF node, but | |
1308 | * can be left unspecified, and will be matched based on DAI | |
1309 | * name alone.. | |
1310 | */ | |
1311 | if (link->cpu_name && link->cpu_of_node) { | |
1312 | dev_err(card->dev, | |
1313 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
1314 | link->name); | |
1315 | return -EINVAL; | |
1316 | } | |
1317 | /* | |
1318 | * At least one of CPU DAI name or CPU device name/node must be | |
1319 | * specified | |
1320 | */ | |
1321 | if (!link->cpu_dai_name && | |
1322 | !(link->cpu_name || link->cpu_of_node)) { | |
1323 | dev_err(card->dev, | |
1324 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
1325 | link->name); | |
1326 | return -EINVAL; | |
1327 | } | |
1328 | ||
1329 | return 0; | |
0671fd8e KM |
1330 | } |
1331 | ||
f8f80361 ML |
1332 | /** |
1333 | * snd_soc_add_dai_link - Add a DAI link dynamically | |
1334 | * @card: The ASoC card to which the DAI link is added | |
1335 | * @dai_link: The new DAI link to add | |
1336 | * | |
1337 | * This function adds a DAI link to the ASoC card's link list. | |
1338 | * | |
1339 | * Note: Topology can use this API to add DAI links when probing the | |
1340 | * topology component. And machine drivers can still define static | |
1341 | * DAI links in dai_link array. | |
1342 | */ | |
1343 | int snd_soc_add_dai_link(struct snd_soc_card *card, | |
1344 | struct snd_soc_dai_link *dai_link) | |
1345 | { | |
1346 | if (dai_link->dobj.type | |
1347 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1348 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1349 | dai_link->dobj.type); | |
1350 | return -EINVAL; | |
1351 | } | |
1352 | ||
1353 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1354 | /* Notify the machine driver for extra initialization |
1355 | * on the link created by topology. | |
1356 | */ | |
1357 | if (dai_link->dobj.type && card->add_dai_link) | |
1358 | card->add_dai_link(card, dai_link); | |
1359 | ||
f8f80361 ML |
1360 | list_add_tail(&dai_link->list, &card->dai_link_list); |
1361 | card->num_dai_links++; | |
1362 | ||
1363 | return 0; | |
1364 | } | |
1365 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_link); | |
1366 | ||
1367 | /** | |
1368 | * snd_soc_remove_dai_link - Remove a DAI link from the list | |
1369 | * @card: The ASoC card that owns the link | |
1370 | * @dai_link: The DAI link to remove | |
1371 | * | |
1372 | * This function removes a DAI link from the ASoC card's link list. | |
1373 | * | |
1374 | * For DAI links previously added by topology, topology should | |
1375 | * remove them by using the dobj embedded in the link. | |
1376 | */ | |
1377 | void snd_soc_remove_dai_link(struct snd_soc_card *card, | |
1378 | struct snd_soc_dai_link *dai_link) | |
1379 | { | |
1380 | struct snd_soc_dai_link *link, *_link; | |
1381 | ||
1382 | if (dai_link->dobj.type | |
1383 | && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { | |
1384 | dev_err(card->dev, "Invalid dai link type %d\n", | |
1385 | dai_link->dobj.type); | |
1386 | return; | |
1387 | } | |
1388 | ||
1389 | lockdep_assert_held(&client_mutex); | |
d6f220ea ML |
1390 | /* Notify the machine driver for extra destruction |
1391 | * on the link created by topology. | |
1392 | */ | |
1393 | if (dai_link->dobj.type && card->remove_dai_link) | |
1394 | card->remove_dai_link(card, dai_link); | |
1395 | ||
f8f80361 ML |
1396 | list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { |
1397 | if (link == dai_link) { | |
1398 | list_del(&link->list); | |
1399 | card->num_dai_links--; | |
1400 | return; | |
1401 | } | |
1402 | } | |
1403 | } | |
1404 | EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); | |
1405 | ||
ead9b919 | 1406 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1407 | struct snd_soc_component *component) |
ead9b919 JN |
1408 | { |
1409 | int i; | |
1410 | ||
ff819b83 | 1411 | if (card->codec_conf == NULL) |
ead9b919 JN |
1412 | return; |
1413 | ||
ff819b83 DP |
1414 | for (i = 0; i < card->num_configs; i++) { |
1415 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1416 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1417 | continue; |
94f99c87 | 1418 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1419 | continue; |
94f99c87 | 1420 | component->name_prefix = map->name_prefix; |
3ca041ed | 1421 | break; |
ead9b919 JN |
1422 | } |
1423 | } | |
1424 | ||
f1d45cc3 LPC |
1425 | static int soc_probe_component(struct snd_soc_card *card, |
1426 | struct snd_soc_component *component) | |
589c3563 | 1427 | { |
f1d45cc3 | 1428 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1429 | struct snd_soc_dai *dai; |
f1d45cc3 | 1430 | int ret; |
589c3563 | 1431 | |
1b7c1231 | 1432 | if (!strcmp(component->name, "snd-soc-dummy")) |
70090bbb | 1433 | return 0; |
589c3563 | 1434 | |
abd31b32 | 1435 | if (component->card) { |
1b7c1231 LPC |
1436 | if (component->card != card) { |
1437 | dev_err(component->dev, | |
1438 | "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", | |
1439 | card->name, component->card->name); | |
1440 | return -ENODEV; | |
1441 | } | |
1442 | return 0; | |
1443 | } | |
589c3563 | 1444 | |
f1d45cc3 | 1445 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1446 | return -ENODEV; |
1447 | ||
f1d45cc3 LPC |
1448 | component->card = card; |
1449 | dapm->card = card; | |
1450 | soc_set_name_prefix(card, component); | |
589c3563 | 1451 | |
f1d45cc3 | 1452 | soc_init_component_debugfs(component); |
d5d1e0be | 1453 | |
f1d45cc3 LPC |
1454 | if (component->dapm_widgets) { |
1455 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1456 | component->num_dapm_widgets); | |
b318ad50 NP |
1457 | |
1458 | if (ret != 0) { | |
f1d45cc3 | 1459 | dev_err(component->dev, |
b318ad50 NP |
1460 | "Failed to create new controls %d\n", ret); |
1461 | goto err_probe; | |
1462 | } | |
1463 | } | |
77530150 | 1464 | |
0634814f LPC |
1465 | list_for_each_entry(dai, &component->dai_list, list) { |
1466 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1467 | if (ret != 0) { |
0634814f | 1468 | dev_err(component->dev, |
261edc70 NP |
1469 | "Failed to create DAI widgets %d\n", ret); |
1470 | goto err_probe; | |
1471 | } | |
1472 | } | |
888df395 | 1473 | |
f1d45cc3 LPC |
1474 | if (component->probe) { |
1475 | ret = component->probe(component); | |
589c3563 | 1476 | if (ret < 0) { |
f1d45cc3 LPC |
1477 | dev_err(component->dev, |
1478 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1479 | goto err_probe; |
589c3563 | 1480 | } |
cb2cf612 | 1481 | |
f1d45cc3 LPC |
1482 | WARN(dapm->idle_bias_off && |
1483 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1484 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1485 | component->name); | |
be09ad90 LG |
1486 | } |
1487 | ||
f2ed6b07 ML |
1488 | /* machine specific init */ |
1489 | if (component->init) { | |
1490 | ret = component->init(component); | |
1491 | if (ret < 0) { | |
1492 | dev_err(component->dev, | |
1493 | "Failed to do machine specific init %d\n", ret); | |
1494 | goto err_probe; | |
1495 | } | |
1496 | } | |
1497 | ||
f1d45cc3 LPC |
1498 | if (component->controls) |
1499 | snd_soc_add_component_controls(component, component->controls, | |
1500 | component->num_controls); | |
1501 | if (component->dapm_routes) | |
1502 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1503 | component->num_dapm_routes); | |
3fec6b6d | 1504 | |
f1d45cc3 | 1505 | list_add(&dapm->list, &card->dapm_list); |
d9fc4063 | 1506 | list_add(&component->card_list, &card->component_dev_list); |
956245e9 LG |
1507 | |
1508 | return 0; | |
1509 | ||
1510 | err_probe: | |
f1d45cc3 | 1511 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1512 | component->card = NULL; |
f1d45cc3 | 1513 | module_put(component->dev->driver->owner); |
956245e9 LG |
1514 | |
1515 | return ret; | |
1516 | } | |
1517 | ||
36ae1a96 MB |
1518 | static void rtd_release(struct device *dev) |
1519 | { | |
1520 | kfree(dev); | |
1521 | } | |
f0fba2ad | 1522 | |
5f3484ac LPC |
1523 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1524 | const char *name) | |
503ae5e0 | 1525 | { |
589c3563 JN |
1526 | int ret = 0; |
1527 | ||
589c3563 | 1528 | /* register the rtd device */ |
36ae1a96 MB |
1529 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1530 | if (!rtd->dev) | |
1531 | return -ENOMEM; | |
1532 | device_initialize(rtd->dev); | |
5f3484ac | 1533 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1534 | rtd->dev->release = rtd_release; |
d29697dc | 1535 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1536 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1537 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1538 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1539 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1540 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1541 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1542 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1543 | ret = device_add(rtd->dev); |
589c3563 | 1544 | if (ret < 0) { |
865df9cb CL |
1545 | /* calling put_device() here to free the rtd->dev */ |
1546 | put_device(rtd->dev); | |
5f3484ac | 1547 | dev_err(rtd->card->dev, |
f110bfc7 | 1548 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1549 | return ret; |
1550 | } | |
1551 | rtd->dev_registered = 1; | |
589c3563 JN |
1552 | return 0; |
1553 | } | |
1554 | ||
1a497983 ML |
1555 | static int soc_probe_link_components(struct snd_soc_card *card, |
1556 | struct snd_soc_pcm_runtime *rtd, | |
62ae68fa SW |
1557 | int order) |
1558 | { | |
62ae68fa | 1559 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1560 | struct snd_soc_component *component; |
88bd870f | 1561 | int i, ret; |
62ae68fa SW |
1562 | |
1563 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1564 | component = rtd->cpu_dai->component; |
70090bbb | 1565 | if (component->driver->probe_order == order) { |
61aca564 | 1566 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1567 | if (ret < 0) |
1568 | return ret; | |
1569 | } | |
1570 | ||
88bd870f BC |
1571 | /* probe the CODEC-side components */ |
1572 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1573 | component = rtd->codec_dais[i]->component; |
70090bbb | 1574 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1575 | ret = soc_probe_component(card, component); |
88bd870f BC |
1576 | if (ret < 0) |
1577 | return ret; | |
1578 | } | |
62ae68fa SW |
1579 | } |
1580 | ||
1581 | /* probe the platform */ | |
70090bbb | 1582 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1583 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1584 | if (ret < 0) |
1585 | return ret; | |
1586 | } | |
1587 | ||
1588 | return 0; | |
1589 | } | |
1590 | ||
8e2be562 | 1591 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1592 | { |
1593 | int ret; | |
1594 | ||
8e2be562 LPC |
1595 | if (!dai->probed && dai->driver->probe_order == order) { |
1596 | if (dai->driver->probe) { | |
1597 | ret = dai->driver->probe(dai); | |
b0aa88af | 1598 | if (ret < 0) { |
8e2be562 LPC |
1599 | dev_err(dai->dev, |
1600 | "ASoC: failed to probe DAI %s: %d\n", | |
1601 | dai->name, ret); | |
b0aa88af MLC |
1602 | return ret; |
1603 | } | |
1604 | } | |
1605 | ||
8e2be562 | 1606 | dai->probed = 1; |
b0aa88af MLC |
1607 | } |
1608 | ||
1609 | return 0; | |
1610 | } | |
1611 | ||
25f7b701 AP |
1612 | static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais, |
1613 | struct snd_soc_pcm_runtime *rtd) | |
1614 | { | |
1615 | int i, ret = 0; | |
1616 | ||
1617 | for (i = 0; i < num_dais; ++i) { | |
1618 | struct snd_soc_dai_driver *drv = dais[i]->driver; | |
1619 | ||
1620 | if (!rtd->dai_link->no_pcm && drv->pcm_new) | |
1621 | ret = drv->pcm_new(rtd, dais[i]); | |
1622 | if (ret < 0) { | |
1623 | dev_err(dais[i]->dev, | |
1624 | "ASoC: Failed to bind %s with pcm device\n", | |
1625 | dais[i]->name); | |
1626 | return ret; | |
1627 | } | |
1628 | } | |
1629 | ||
1630 | return 0; | |
1631 | } | |
1632 | ||
2436a723 MLC |
1633 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1634 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1635 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1636 | { |
3f901a02 BC |
1637 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1638 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
3de7c420 | 1639 | struct snd_soc_dapm_widget *sink, *source; |
2436a723 MLC |
1640 | int ret; |
1641 | ||
88bd870f BC |
1642 | if (rtd->num_codecs > 1) |
1643 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1644 | ||
2436a723 | 1645 | /* link the DAI widgets */ |
3de7c420 VK |
1646 | sink = codec_dai->playback_widget; |
1647 | source = cpu_dai->capture_widget; | |
1648 | if (sink && source) { | |
2436a723 | 1649 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1650 | dai_link->num_params, |
1651 | source, sink); | |
2436a723 MLC |
1652 | if (ret != 0) { |
1653 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1654 | sink->name, source->name, ret); |
2436a723 MLC |
1655 | return ret; |
1656 | } | |
1657 | } | |
1658 | ||
3de7c420 VK |
1659 | sink = cpu_dai->playback_widget; |
1660 | source = codec_dai->capture_widget; | |
1661 | if (sink && source) { | |
2436a723 | 1662 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, |
3de7c420 VK |
1663 | dai_link->num_params, |
1664 | source, sink); | |
2436a723 MLC |
1665 | if (ret != 0) { |
1666 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
3de7c420 | 1667 | sink->name, source->name, ret); |
2436a723 MLC |
1668 | return ret; |
1669 | } | |
1670 | } | |
1671 | ||
1672 | return 0; | |
1673 | } | |
1674 | ||
1a497983 ML |
1675 | static int soc_probe_link_dais(struct snd_soc_card *card, |
1676 | struct snd_soc_pcm_runtime *rtd, int order) | |
f0fba2ad | 1677 | { |
1a497983 | 1678 | struct snd_soc_dai_link *dai_link = rtd->dai_link; |
c74184ed | 1679 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1680 | int i, ret; |
f0fba2ad | 1681 | |
f110bfc7 | 1682 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
1a497983 | 1683 | card->name, rtd->num, order); |
f0fba2ad | 1684 | |
f0fba2ad LG |
1685 | /* set default power off timeout */ |
1686 | rtd->pmdown_time = pmdown_time; | |
1687 | ||
8e2be562 LPC |
1688 | ret = soc_probe_dai(cpu_dai, order); |
1689 | if (ret) | |
1690 | return ret; | |
db2a4165 | 1691 | |
f0fba2ad | 1692 | /* probe the CODEC DAI */ |
88bd870f | 1693 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1694 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1695 | if (ret) |
1696 | return ret; | |
1697 | } | |
fe3e78e0 | 1698 | |
0168bf0d LG |
1699 | /* complete DAI probe during last probe */ |
1700 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1701 | return 0; | |
1702 | ||
5f3484ac LPC |
1703 | /* do machine specific initialization */ |
1704 | if (dai_link->init) { | |
1705 | ret = dai_link->init(rtd); | |
1706 | if (ret < 0) { | |
1707 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1708 | dai_link->name, ret); | |
1709 | return ret; | |
1710 | } | |
1711 | } | |
1712 | ||
a5053a8e KM |
1713 | if (dai_link->dai_fmt) |
1714 | snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1715 | ||
5f3484ac | 1716 | ret = soc_post_component_init(rtd, dai_link->name); |
589c3563 | 1717 | if (ret) |
f0fba2ad | 1718 | return ret; |
fe3e78e0 | 1719 | |
5f3484ac LPC |
1720 | #ifdef CONFIG_DEBUG_FS |
1721 | /* add DPCM sysfs entries */ | |
2e55b90a LPC |
1722 | if (dai_link->dynamic) |
1723 | soc_dpcm_debugfs_add(rtd); | |
5f3484ac LPC |
1724 | #endif |
1725 | ||
6f0c4226 | 1726 | if (cpu_dai->driver->compress_new) { |
1245b700 | 1727 | /*create compress_device"*/ |
1a497983 | 1728 | ret = cpu_dai->driver->compress_new(rtd, rtd->num); |
c74184ed | 1729 | if (ret < 0) { |
f110bfc7 | 1730 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1731 | dai_link->stream_name); |
c74184ed MB |
1732 | return ret; |
1733 | } | |
1734 | } else { | |
1245b700 NK |
1735 | |
1736 | if (!dai_link->params) { | |
1737 | /* create the pcm */ | |
1a497983 | 1738 | ret = soc_new_pcm(rtd, rtd->num); |
1245b700 | 1739 | if (ret < 0) { |
f110bfc7 | 1740 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1741 | dai_link->stream_name, ret); |
c74184ed MB |
1742 | return ret; |
1743 | } | |
25f7b701 AP |
1744 | ret = soc_link_dai_pcm_new(&cpu_dai, 1, rtd); |
1745 | if (ret < 0) | |
1746 | return ret; | |
1747 | ret = soc_link_dai_pcm_new(rtd->codec_dais, | |
1748 | rtd->num_codecs, rtd); | |
1749 | if (ret < 0) | |
1750 | return ret; | |
1245b700 | 1751 | } else { |
9d58a077 RF |
1752 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1753 | codec2codec_close_delayed_work); | |
1754 | ||
1245b700 | 1755 | /* link the DAI widgets */ |
3f901a02 | 1756 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1757 | if (ret) |
1758 | return ret; | |
c74184ed | 1759 | } |
f0fba2ad LG |
1760 | } |
1761 | ||
f0fba2ad LG |
1762 | return 0; |
1763 | } | |
1764 | ||
44c69bb1 | 1765 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed SR |
1766 | { |
1767 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
f2ed6b07 ML |
1768 | struct snd_soc_component *component; |
1769 | const char *name; | |
1770 | struct device_node *codec_of_node; | |
1771 | ||
1772 | if (aux_dev->codec_of_node || aux_dev->codec_name) { | |
1773 | /* codecs, usually analog devices */ | |
1774 | name = aux_dev->codec_name; | |
1775 | codec_of_node = aux_dev->codec_of_node; | |
1776 | component = soc_find_component(codec_of_node, name); | |
1777 | if (!component) { | |
1778 | if (codec_of_node) | |
1779 | name = of_node_full_name(codec_of_node); | |
1780 | goto err_defer; | |
1781 | } | |
1782 | } else if (aux_dev->name) { | |
1783 | /* generic components */ | |
1784 | name = aux_dev->name; | |
1785 | component = soc_find_component(NULL, name); | |
1786 | if (!component) | |
1787 | goto err_defer; | |
1788 | } else { | |
1789 | dev_err(card->dev, "ASoC: Invalid auxiliary device\n"); | |
1790 | return -EINVAL; | |
3ca041ed | 1791 | } |
fb099cb7 | 1792 | |
f2ed6b07 | 1793 | component->init = aux_dev->init; |
d2e3a135 | 1794 | list_add(&component->card_aux_list, &card->aux_comp_list); |
1a653aa4 | 1795 | |
44c69bb1 | 1796 | return 0; |
f2ed6b07 ML |
1797 | |
1798 | err_defer: | |
1799 | dev_err(card->dev, "ASoC: %s not registered\n", name); | |
1800 | return -EPROBE_DEFER; | |
b19e6e7b MB |
1801 | } |
1802 | ||
f2ed6b07 | 1803 | static int soc_probe_aux_devices(struct snd_soc_card *card) |
2eea392d | 1804 | { |
991454e1 | 1805 | struct snd_soc_component *comp; |
f2ed6b07 | 1806 | int order; |
44c69bb1 | 1807 | int ret; |
3ca041ed | 1808 | |
f2ed6b07 ML |
1809 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1810 | order++) { | |
991454e1 | 1811 | list_for_each_entry(comp, &card->aux_comp_list, card_aux_list) { |
f2ed6b07 ML |
1812 | if (comp->driver->probe_order == order) { |
1813 | ret = soc_probe_component(card, comp); | |
1814 | if (ret < 0) { | |
1815 | dev_err(card->dev, | |
1816 | "ASoC: failed to probe aux component %s %d\n", | |
1817 | comp->name, ret); | |
1818 | return ret; | |
1819 | } | |
1820 | } | |
5f3484ac LPC |
1821 | } |
1822 | } | |
2eea392d | 1823 | |
f2ed6b07 | 1824 | return 0; |
2eea392d JN |
1825 | } |
1826 | ||
f2ed6b07 | 1827 | static void soc_remove_aux_devices(struct snd_soc_card *card) |
2eea392d | 1828 | { |
f2ed6b07 ML |
1829 | struct snd_soc_component *comp, *_comp; |
1830 | int order; | |
2eea392d | 1831 | |
f2ed6b07 ML |
1832 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1833 | order++) { | |
1834 | list_for_each_entry_safe(comp, _comp, | |
991454e1 | 1835 | &card->aux_comp_list, card_aux_list) { |
1a653aa4 | 1836 | |
f2ed6b07 ML |
1837 | if (comp->driver->remove_order == order) { |
1838 | soc_remove_component(comp); | |
991454e1 KM |
1839 | /* remove it from the card's aux_comp_list */ |
1840 | list_del(&comp->card_aux_list); | |
f2ed6b07 ML |
1841 | } |
1842 | } | |
2eea392d | 1843 | } |
2eea392d JN |
1844 | } |
1845 | ||
f90fb3f7 | 1846 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1847 | { |
1848 | int ret; | |
1849 | ||
1850 | if (codec->cache_init) | |
1851 | return 0; | |
1852 | ||
fdf0f54d DP |
1853 | ret = snd_soc_cache_init(codec); |
1854 | if (ret < 0) { | |
10e8aa9a MM |
1855 | dev_err(codec->dev, |
1856 | "ASoC: Failed to set cache compression type: %d\n", | |
1857 | ret); | |
fdf0f54d DP |
1858 | return ret; |
1859 | } | |
1860 | codec->cache_init = 1; | |
1861 | return 0; | |
1862 | } | |
1863 | ||
ce64c8b9 LPC |
1864 | /** |
1865 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1866 | * @rtd: The runtime for which the DAI link format should be changed | |
1867 | * @dai_fmt: The new DAI link format | |
1868 | * | |
1869 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1870 | * link for the specified runtime. | |
1871 | * | |
1872 | * Note: For setups with a static format set the dai_fmt field in the | |
1873 | * corresponding snd_dai_link struct instead of using this function. | |
1874 | * | |
1875 | * Returns 0 on success, otherwise a negative error code. | |
1876 | */ | |
1877 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1878 | unsigned int dai_fmt) | |
1879 | { | |
1880 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1881 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1882 | unsigned int i; | |
1883 | int ret; | |
1884 | ||
1885 | for (i = 0; i < rtd->num_codecs; i++) { | |
1886 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1887 | ||
1888 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1889 | if (ret != 0 && ret != -ENOTSUPP) { | |
1890 | dev_warn(codec_dai->dev, | |
1891 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1892 | return ret; | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1897 | if (cpu_dai->codec) { | |
1898 | unsigned int inv_dai_fmt; | |
1899 | ||
1900 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1901 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1902 | case SND_SOC_DAIFMT_CBM_CFM: | |
1903 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1904 | break; | |
1905 | case SND_SOC_DAIFMT_CBM_CFS: | |
1906 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1907 | break; | |
1908 | case SND_SOC_DAIFMT_CBS_CFM: | |
1909 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1910 | break; | |
1911 | case SND_SOC_DAIFMT_CBS_CFS: | |
1912 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1913 | break; | |
1914 | } | |
1915 | ||
1916 | dai_fmt = inv_dai_fmt; | |
1917 | } | |
1918 | ||
1919 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1920 | if (ret != 0 && ret != -ENOTSUPP) { | |
1921 | dev_warn(cpu_dai->dev, | |
1922 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1923 | return ret; | |
1924 | } | |
1925 | ||
1926 | return 0; | |
1927 | } | |
ddaca25a | 1928 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1929 | |
345233d7 | 1930 | |
1f5a4535 | 1931 | #ifdef CONFIG_DMI |
345233d7 LG |
1932 | /* Trim special characters, and replace '-' with '_' since '-' is used to |
1933 | * separate different DMI fields in the card long name. Only number and | |
1934 | * alphabet characters and a few separator characters are kept. | |
1935 | */ | |
1936 | static void cleanup_dmi_name(char *name) | |
1937 | { | |
1938 | int i, j = 0; | |
1939 | ||
1940 | for (i = 0; name[i]; i++) { | |
1941 | if (isalnum(name[i]) || (name[i] == '.') | |
1942 | || (name[i] == '_')) | |
1943 | name[j++] = name[i]; | |
1944 | else if (name[i] == '-') | |
1945 | name[j++] = '_'; | |
1946 | } | |
1947 | ||
1948 | name[j] = '\0'; | |
1949 | } | |
1950 | ||
98faf436 ML |
1951 | /* Check if a DMI field is valid, i.e. not containing any string |
1952 | * in the black list. | |
1953 | */ | |
1954 | static int is_dmi_valid(const char *field) | |
1955 | { | |
1956 | int i = 0; | |
1957 | ||
1958 | while (dmi_blacklist[i]) { | |
1959 | if (strstr(field, dmi_blacklist[i])) | |
1960 | return 0; | |
1961 | i++; | |
46b5a4d2 | 1962 | } |
98faf436 ML |
1963 | |
1964 | return 1; | |
1965 | } | |
1966 | ||
345233d7 LG |
1967 | /** |
1968 | * snd_soc_set_dmi_name() - Register DMI names to card | |
1969 | * @card: The card to register DMI names | |
1970 | * @flavour: The flavour "differentiator" for the card amongst its peers. | |
1971 | * | |
1972 | * An Intel machine driver may be used by many different devices but are | |
1973 | * difficult for userspace to differentiate, since machine drivers ususally | |
1974 | * use their own name as the card short name and leave the card long name | |
1975 | * blank. To differentiate such devices and fix bugs due to lack of | |
1976 | * device-specific configurations, this function allows DMI info to be used | |
1977 | * as the sound card long name, in the format of | |
1978 | * "vendor-product-version-board" | |
1979 | * (Character '-' is used to separate different DMI fields here). | |
1980 | * This will help the user space to load the device-specific Use Case Manager | |
1981 | * (UCM) configurations for the card. | |
1982 | * | |
1983 | * Possible card long names may be: | |
1984 | * DellInc.-XPS139343-01-0310JH | |
1985 | * ASUSTeKCOMPUTERINC.-T100TA-1.0-T100TA | |
1986 | * Circuitco-MinnowboardMaxD0PLATFORM-D0-MinnowBoardMAX | |
1987 | * | |
1988 | * This function also supports flavoring the card longname to provide | |
1989 | * the extra differentiation, like "vendor-product-version-board-flavor". | |
1990 | * | |
1991 | * We only keep number and alphabet characters and a few separator characters | |
1992 | * in the card long name since UCM in the user space uses the card long names | |
1993 | * as card configuration directory names and AudoConf cannot support special | |
1994 | * charactors like SPACE. | |
1995 | * | |
1996 | * Returns 0 on success, otherwise a negative error code. | |
1997 | */ | |
1998 | int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) | |
1999 | { | |
2000 | const char *vendor, *product, *product_version, *board; | |
2001 | size_t longname_buf_size = sizeof(card->snd_card->longname); | |
2002 | size_t len; | |
2003 | ||
2004 | if (card->long_name) | |
2005 | return 0; /* long name already set by driver or from DMI */ | |
2006 | ||
2007 | /* make up dmi long name as: vendor.product.version.board */ | |
2008 | vendor = dmi_get_system_info(DMI_BOARD_VENDOR); | |
98faf436 | 2009 | if (!vendor || !is_dmi_valid(vendor)) { |
345233d7 LG |
2010 | dev_warn(card->dev, "ASoC: no DMI vendor name!\n"); |
2011 | return 0; | |
2012 | } | |
2013 | ||
98faf436 | 2014 | |
345233d7 LG |
2015 | snprintf(card->dmi_longname, sizeof(card->snd_card->longname), |
2016 | "%s", vendor); | |
2017 | cleanup_dmi_name(card->dmi_longname); | |
2018 | ||
2019 | product = dmi_get_system_info(DMI_PRODUCT_NAME); | |
98faf436 | 2020 | if (product && is_dmi_valid(product)) { |
345233d7 LG |
2021 | len = strlen(card->dmi_longname); |
2022 | snprintf(card->dmi_longname + len, | |
2023 | longname_buf_size - len, | |
2024 | "-%s", product); | |
2025 | ||
2026 | len++; /* skip the separator "-" */ | |
2027 | if (len < longname_buf_size) | |
2028 | cleanup_dmi_name(card->dmi_longname + len); | |
2029 | ||
2030 | /* some vendors like Lenovo may only put a self-explanatory | |
2031 | * name in the product version field | |
2032 | */ | |
2033 | product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); | |
98faf436 | 2034 | if (product_version && is_dmi_valid(product_version)) { |
345233d7 LG |
2035 | len = strlen(card->dmi_longname); |
2036 | snprintf(card->dmi_longname + len, | |
2037 | longname_buf_size - len, | |
2038 | "-%s", product_version); | |
2039 | ||
2040 | len++; | |
2041 | if (len < longname_buf_size) | |
2042 | cleanup_dmi_name(card->dmi_longname + len); | |
2043 | } | |
2044 | } | |
2045 | ||
2046 | board = dmi_get_system_info(DMI_BOARD_NAME); | |
98faf436 | 2047 | if (board && is_dmi_valid(board)) { |
345233d7 LG |
2048 | len = strlen(card->dmi_longname); |
2049 | snprintf(card->dmi_longname + len, | |
2050 | longname_buf_size - len, | |
2051 | "-%s", board); | |
2052 | ||
2053 | len++; | |
2054 | if (len < longname_buf_size) | |
2055 | cleanup_dmi_name(card->dmi_longname + len); | |
2056 | } else if (!product) { | |
2057 | /* fall back to using legacy name */ | |
2058 | dev_warn(card->dev, "ASoC: no DMI board/product name!\n"); | |
2059 | return 0; | |
2060 | } | |
2061 | ||
2062 | /* Add flavour to dmi long name */ | |
2063 | if (flavour) { | |
2064 | len = strlen(card->dmi_longname); | |
2065 | snprintf(card->dmi_longname + len, | |
2066 | longname_buf_size - len, | |
2067 | "-%s", flavour); | |
2068 | ||
2069 | len++; | |
2070 | if (len < longname_buf_size) | |
2071 | cleanup_dmi_name(card->dmi_longname + len); | |
2072 | } | |
2073 | ||
2074 | /* set the card long name */ | |
2075 | card->long_name = card->dmi_longname; | |
2076 | ||
2077 | return 0; | |
2078 | } | |
2079 | EXPORT_SYMBOL_GPL(snd_soc_set_dmi_name); | |
1f5a4535 | 2080 | #endif /* CONFIG_DMI */ |
345233d7 | 2081 | |
b19e6e7b | 2082 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 2083 | { |
fdf0f54d | 2084 | struct snd_soc_codec *codec; |
1a497983 | 2085 | struct snd_soc_pcm_runtime *rtd; |
61b0088b | 2086 | struct snd_soc_dai_link *dai_link; |
ce64c8b9 | 2087 | int ret, i, order; |
fe3e78e0 | 2088 | |
34e81ab4 | 2089 | mutex_lock(&client_mutex); |
01b9d99a | 2090 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 2091 | |
f0fba2ad | 2092 | /* bind DAIs */ |
b19e6e7b | 2093 | for (i = 0; i < card->num_links; i++) { |
6f2f1ff0 | 2094 | ret = soc_bind_dai_link(card, &card->dai_link[i]); |
b19e6e7b MB |
2095 | if (ret != 0) |
2096 | goto base_error; | |
2097 | } | |
fe3e78e0 | 2098 | |
44c69bb1 | 2099 | /* bind aux_devs too */ |
b19e6e7b | 2100 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 2101 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
2102 | if (ret != 0) |
2103 | goto base_error; | |
f0fba2ad | 2104 | } |
435c5e25 | 2105 | |
f8f80361 ML |
2106 | /* add predefined DAI links to the list */ |
2107 | for (i = 0; i < card->num_links; i++) | |
2108 | snd_soc_add_dai_link(card, card->dai_link+i); | |
2109 | ||
fdf0f54d DP |
2110 | /* initialize the register cache for each available codec */ |
2111 | list_for_each_entry(codec, &codec_list, list) { | |
2112 | if (codec->cache_init) | |
2113 | continue; | |
f90fb3f7 | 2114 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
2115 | if (ret < 0) |
2116 | goto base_error; | |
fdf0f54d DP |
2117 | } |
2118 | ||
f0fba2ad | 2119 | /* card bind complete so register a sound card */ |
102b5a8d | 2120 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
2121 | card->owner, 0, &card->snd_card); |
2122 | if (ret < 0) { | |
10e8aa9a MM |
2123 | dev_err(card->dev, |
2124 | "ASoC: can't create sound card for card %s: %d\n", | |
2125 | card->name, ret); | |
b19e6e7b | 2126 | goto base_error; |
f0fba2ad | 2127 | } |
f0fba2ad | 2128 | |
0757d834 LPC |
2129 | soc_init_card_debugfs(card); |
2130 | ||
e37a4970 MB |
2131 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
2132 | card->dapm.dev = card->dev; | |
2133 | card->dapm.card = card; | |
2134 | list_add(&card->dapm.list, &card->dapm_list); | |
2135 | ||
d5d1e0be LPC |
2136 | #ifdef CONFIG_DEBUG_FS |
2137 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
2138 | #endif | |
2139 | ||
88ee1c61 | 2140 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
2141 | /* deferred resume work */ |
2142 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
2143 | #endif | |
db2a4165 | 2144 | |
9a841ebb MB |
2145 | if (card->dapm_widgets) |
2146 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
2147 | card->num_dapm_widgets); | |
2148 | ||
f23e860e NC |
2149 | if (card->of_dapm_widgets) |
2150 | snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, | |
2151 | card->num_of_dapm_widgets); | |
2152 | ||
f0fba2ad LG |
2153 | /* initialise the sound card only once */ |
2154 | if (card->probe) { | |
e7361ec4 | 2155 | ret = card->probe(card); |
f0fba2ad LG |
2156 | if (ret < 0) |
2157 | goto card_probe_error; | |
2158 | } | |
fe3e78e0 | 2159 | |
62ae68fa | 2160 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
2161 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
2162 | order++) { | |
1a497983 ML |
2163 | list_for_each_entry(rtd, &card->rtd_list, list) { |
2164 | ret = soc_probe_link_components(card, rtd, order); | |
0168bf0d | 2165 | if (ret < 0) { |
f110bfc7 LG |
2166 | dev_err(card->dev, |
2167 | "ASoC: failed to instantiate card %d\n", | |
2168 | ret); | |
62ae68fa SW |
2169 | goto probe_dai_err; |
2170 | } | |
2171 | } | |
2172 | } | |
2173 | ||
f2ed6b07 ML |
2174 | /* probe auxiliary components */ |
2175 | ret = soc_probe_aux_devices(card); | |
2176 | if (ret < 0) | |
2177 | goto probe_dai_err; | |
2178 | ||
61b0088b ML |
2179 | /* Find new DAI links added during probing components and bind them. |
2180 | * Components with topology may bring new DAIs and DAI links. | |
2181 | */ | |
2182 | list_for_each_entry(dai_link, &card->dai_link_list, list) { | |
2183 | if (soc_is_dai_link_bound(card, dai_link)) | |
2184 | continue; | |
2185 | ||
2186 | ret = soc_init_dai_link(card, dai_link); | |
2187 | if (ret) | |
2188 | goto probe_dai_err; | |
2189 | ret = soc_bind_dai_link(card, dai_link); | |
2190 | if (ret) | |
2191 | goto probe_dai_err; | |
2192 | } | |
2193 | ||
62ae68fa SW |
2194 | /* probe all DAI links on this card */ |
2195 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
2196 | order++) { | |
1a497983 ML |
2197 | list_for_each_entry(rtd, &card->rtd_list, list) { |
2198 | ret = soc_probe_link_dais(card, rtd, order); | |
62ae68fa | 2199 | if (ret < 0) { |
f110bfc7 LG |
2200 | dev_err(card->dev, |
2201 | "ASoC: failed to instantiate card %d\n", | |
2202 | ret); | |
0168bf0d LG |
2203 | goto probe_dai_err; |
2204 | } | |
f0fba2ad LG |
2205 | } |
2206 | } | |
db2a4165 | 2207 | |
888df395 | 2208 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 2209 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 2210 | |
b7af1daf | 2211 | if (card->controls) |
022658be | 2212 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 2213 | |
b8ad29de MB |
2214 | if (card->dapm_routes) |
2215 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
2216 | card->num_dapm_routes); | |
2217 | ||
f23e860e NC |
2218 | if (card->of_dapm_routes) |
2219 | snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, | |
2220 | card->num_of_dapm_routes); | |
75d9ac46 | 2221 | |
861886d3 TI |
2222 | /* try to set some sane longname if DMI is available */ |
2223 | snd_soc_set_dmi_name(card, NULL); | |
2224 | ||
f0fba2ad | 2225 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 2226 | "%s", card->name); |
22de71ba LG |
2227 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
2228 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
2229 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
2230 | "%s", card->driver_name ? card->driver_name : card->name); | |
2231 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
2232 | switch (card->snd_card->driver[i]) { | |
2233 | case '_': | |
2234 | case '-': | |
2235 | case '\0': | |
2236 | break; | |
2237 | default: | |
2238 | if (!isalnum(card->snd_card->driver[i])) | |
2239 | card->snd_card->driver[i] = '_'; | |
2240 | break; | |
2241 | } | |
2242 | } | |
f0fba2ad | 2243 | |
28e9ad92 MB |
2244 | if (card->late_probe) { |
2245 | ret = card->late_probe(card); | |
2246 | if (ret < 0) { | |
f110bfc7 | 2247 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
2248 | card->name, ret); |
2249 | goto probe_aux_dev_err; | |
2250 | } | |
2251 | } | |
2252 | ||
824ef826 | 2253 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 2254 | |
f0fba2ad LG |
2255 | ret = snd_card_register(card->snd_card); |
2256 | if (ret < 0) { | |
f110bfc7 LG |
2257 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
2258 | ret); | |
6b3ed785 | 2259 | goto probe_aux_dev_err; |
db2a4165 FM |
2260 | } |
2261 | ||
f0fba2ad | 2262 | card->instantiated = 1; |
4f4c0072 | 2263 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 2264 | mutex_unlock(&card->mutex); |
34e81ab4 | 2265 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
2266 | |
2267 | return 0; | |
f0fba2ad | 2268 | |
2eea392d | 2269 | probe_aux_dev_err: |
f2ed6b07 | 2270 | soc_remove_aux_devices(card); |
2eea392d | 2271 | |
f0fba2ad | 2272 | probe_dai_err: |
0671fd8e | 2273 | soc_remove_dai_links(card); |
f0fba2ad LG |
2274 | |
2275 | card_probe_error: | |
87506549 | 2276 | if (card->remove) |
e7361ec4 | 2277 | card->remove(card); |
f0fba2ad | 2278 | |
2210438b | 2279 | snd_soc_dapm_free(&card->dapm); |
0757d834 | 2280 | soc_cleanup_card_debugfs(card); |
f0fba2ad LG |
2281 | snd_card_free(card->snd_card); |
2282 | ||
b19e6e7b | 2283 | base_error: |
1a497983 | 2284 | soc_remove_pcm_runtimes(card); |
f0fba2ad | 2285 | mutex_unlock(&card->mutex); |
34e81ab4 | 2286 | mutex_unlock(&client_mutex); |
db2a4165 | 2287 | |
b19e6e7b | 2288 | return ret; |
435c5e25 MB |
2289 | } |
2290 | ||
2291 | /* probes a new socdev */ | |
2292 | static int soc_probe(struct platform_device *pdev) | |
2293 | { | |
f0fba2ad | 2294 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 2295 | |
70a7ca34 VK |
2296 | /* |
2297 | * no card, so machine driver should be registering card | |
2298 | * we should not be here in that case so ret error | |
2299 | */ | |
2300 | if (!card) | |
2301 | return -EINVAL; | |
2302 | ||
fe4085e8 | 2303 | dev_warn(&pdev->dev, |
f110bfc7 | 2304 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
2305 | card->name); |
2306 | ||
435c5e25 MB |
2307 | /* Bodge while we unpick instantiation */ |
2308 | card->dev = &pdev->dev; | |
f0fba2ad | 2309 | |
28d528c8 | 2310 | return snd_soc_register_card(card); |
db2a4165 FM |
2311 | } |
2312 | ||
b0e26485 | 2313 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 | 2314 | { |
1a497983 | 2315 | struct snd_soc_pcm_runtime *rtd; |
db2a4165 | 2316 | |
b0e26485 | 2317 | /* make sure any delayed work runs */ |
1a497983 | 2318 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2319 | flush_delayed_work(&rtd->delayed_work); |
914dc182 | 2320 | |
4efda5f2 TI |
2321 | /* free the ALSA card at first; this syncs with pending operations */ |
2322 | snd_card_free(card->snd_card); | |
2323 | ||
b0e26485 | 2324 | /* remove and free each DAI */ |
0671fd8e | 2325 | soc_remove_dai_links(card); |
1a497983 | 2326 | soc_remove_pcm_runtimes(card); |
2eea392d | 2327 | |
f2ed6b07 ML |
2328 | /* remove auxiliary devices */ |
2329 | soc_remove_aux_devices(card); | |
2330 | ||
d1e81428 | 2331 | snd_soc_dapm_free(&card->dapm); |
b0e26485 | 2332 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2333 | |
b0e26485 VK |
2334 | /* remove the card */ |
2335 | if (card->remove) | |
e7361ec4 | 2336 | card->remove(card); |
a6052154 | 2337 | |
b0e26485 | 2338 | return 0; |
b0e26485 VK |
2339 | } |
2340 | ||
2341 | /* removes a socdev */ | |
2342 | static int soc_remove(struct platform_device *pdev) | |
2343 | { | |
2344 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2345 | |
c5af3a2e | 2346 | snd_soc_unregister_card(card); |
db2a4165 FM |
2347 | return 0; |
2348 | } | |
2349 | ||
6f8ab4ac | 2350 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2351 | { |
6f8ab4ac | 2352 | struct snd_soc_card *card = dev_get_drvdata(dev); |
1a497983 | 2353 | struct snd_soc_pcm_runtime *rtd; |
51737470 MB |
2354 | |
2355 | if (!card->instantiated) | |
416356fc | 2356 | return 0; |
51737470 MB |
2357 | |
2358 | /* Flush out pmdown_time work - we actually do want to run it | |
2359 | * now, we're shutting down so no imminent restart. */ | |
1a497983 | 2360 | list_for_each_entry(rtd, &card->rtd_list, list) |
43829731 | 2361 | flush_delayed_work(&rtd->delayed_work); |
51737470 | 2362 | |
f0fba2ad | 2363 | snd_soc_dapm_shutdown(card); |
416356fc | 2364 | |
988e8cc4 | 2365 | /* deactivate pins to sleep state */ |
1a497983 | 2366 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f | 2367 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1a497983 | 2368 | int i; |
88bd870f | 2369 | |
988e8cc4 | 2370 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
1a497983 ML |
2371 | for (i = 0; i < rtd->num_codecs; i++) { |
2372 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
88bd870f BC |
2373 | pinctrl_pm_select_sleep_state(codec_dai->dev); |
2374 | } | |
988e8cc4 NC |
2375 | } |
2376 | ||
416356fc | 2377 | return 0; |
51737470 | 2378 | } |
6f8ab4ac | 2379 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2380 | |
6f8ab4ac | 2381 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
2382 | .suspend = snd_soc_suspend, |
2383 | .resume = snd_soc_resume, | |
2384 | .freeze = snd_soc_suspend, | |
2385 | .thaw = snd_soc_resume, | |
6f8ab4ac | 2386 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 2387 | .restore = snd_soc_resume, |
416356fc | 2388 | }; |
deb2607e | 2389 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2390 | |
db2a4165 FM |
2391 | /* ASoC platform driver */ |
2392 | static struct platform_driver soc_driver = { | |
2393 | .driver = { | |
2394 | .name = "soc-audio", | |
6f8ab4ac | 2395 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2396 | }, |
2397 | .probe = soc_probe, | |
2398 | .remove = soc_remove, | |
db2a4165 FM |
2399 | }; |
2400 | ||
db2a4165 FM |
2401 | /** |
2402 | * snd_soc_cnew - create new control | |
2403 | * @_template: control template | |
2404 | * @data: control private data | |
ac11a2b3 | 2405 | * @long_name: control long name |
efb7ac3f | 2406 | * @prefix: control name prefix |
db2a4165 FM |
2407 | * |
2408 | * Create a new mixer control from a template control. | |
2409 | * | |
2410 | * Returns 0 for success, else error. | |
2411 | */ | |
2412 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2413 | void *data, const char *long_name, |
efb7ac3f | 2414 | const char *prefix) |
db2a4165 FM |
2415 | { |
2416 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2417 | struct snd_kcontrol *kcontrol; |
2418 | char *name = NULL; | |
db2a4165 FM |
2419 | |
2420 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2421 | template.index = 0; |
2422 | ||
efb7ac3f MB |
2423 | if (!long_name) |
2424 | long_name = template.name; | |
2425 | ||
2426 | if (prefix) { | |
2b581074 | 2427 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
2428 | if (!name) |
2429 | return NULL; | |
2430 | ||
efb7ac3f MB |
2431 | template.name = name; |
2432 | } else { | |
2433 | template.name = long_name; | |
2434 | } | |
2435 | ||
2436 | kcontrol = snd_ctl_new1(&template, data); | |
2437 | ||
2438 | kfree(name); | |
2439 | ||
2440 | return kcontrol; | |
db2a4165 FM |
2441 | } |
2442 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2443 | ||
022658be LG |
2444 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2445 | const struct snd_kcontrol_new *controls, int num_controls, | |
2446 | const char *prefix, void *data) | |
2447 | { | |
2448 | int err, i; | |
2449 | ||
2450 | for (i = 0; i < num_controls; i++) { | |
2451 | const struct snd_kcontrol_new *control = &controls[i]; | |
2452 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2453 | control->name, prefix)); | |
2454 | if (err < 0) { | |
f110bfc7 LG |
2455 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
2456 | control->name, err); | |
022658be LG |
2457 | return err; |
2458 | } | |
2459 | } | |
2460 | ||
2461 | return 0; | |
2462 | } | |
2463 | ||
4fefd698 DP |
2464 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
2465 | const char *name) | |
2466 | { | |
2467 | struct snd_card *card = soc_card->snd_card; | |
2468 | struct snd_kcontrol *kctl; | |
2469 | ||
2470 | if (unlikely(!name)) | |
2471 | return NULL; | |
2472 | ||
2473 | list_for_each_entry(kctl, &card->controls, list) | |
2474 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
2475 | return kctl; | |
2476 | return NULL; | |
2477 | } | |
2478 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
2479 | ||
0f2780ad LPC |
2480 | /** |
2481 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
2482 | * | |
2483 | * @component: Component to add controls to | |
2484 | * @controls: Array of controls to add | |
2485 | * @num_controls: Number of elements in the array | |
2486 | * | |
2487 | * Return: 0 for success, else error. | |
2488 | */ | |
2489 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
2490 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
2491 | { | |
2492 | struct snd_card *card = component->card->snd_card; | |
2493 | ||
2494 | return snd_soc_add_controls(card, component->dev, controls, | |
2495 | num_controls, component->name_prefix, component); | |
2496 | } | |
2497 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
2498 | ||
3e8e1952 | 2499 | /** |
022658be LG |
2500 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2501 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2502 | * duplicating this code. |
2503 | * | |
2504 | * @codec: codec to add controls to | |
2505 | * @controls: array of controls to add | |
2506 | * @num_controls: number of elements in the array | |
2507 | * | |
2508 | * Return 0 for success, else error. | |
2509 | */ | |
022658be | 2510 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 2511 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 2512 | { |
0f2780ad LPC |
2513 | return snd_soc_add_component_controls(&codec->component, controls, |
2514 | num_controls); | |
3e8e1952 | 2515 | } |
022658be | 2516 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2517 | |
a491a5c8 LG |
2518 | /** |
2519 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2520 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2521 | * |
2522 | * @platform: platform to add controls to | |
2523 | * @controls: array of controls to add | |
2524 | * @num_controls: number of elements in the array | |
2525 | * | |
2526 | * Return 0 for success, else error. | |
2527 | */ | |
2528 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 2529 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 2530 | { |
0f2780ad LPC |
2531 | return snd_soc_add_component_controls(&platform->component, controls, |
2532 | num_controls); | |
a491a5c8 LG |
2533 | } |
2534 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2535 | ||
022658be LG |
2536 | /** |
2537 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2538 | * Convenience function to add a list of controls. | |
2539 | * | |
2540 | * @soc_card: SoC card to add controls to | |
2541 | * @controls: array of controls to add | |
2542 | * @num_controls: number of elements in the array | |
2543 | * | |
2544 | * Return 0 for success, else error. | |
2545 | */ | |
2546 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2547 | const struct snd_kcontrol_new *controls, int num_controls) | |
2548 | { | |
2549 | struct snd_card *card = soc_card->snd_card; | |
2550 | ||
2551 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2552 | NULL, soc_card); | |
2553 | } | |
2554 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2555 | ||
2556 | /** | |
2557 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2558 | * Convienience function to add a list of controls. | |
2559 | * | |
2560 | * @dai: DAI to add controls to | |
2561 | * @controls: array of controls to add | |
2562 | * @num_controls: number of elements in the array | |
2563 | * | |
2564 | * Return 0 for success, else error. | |
2565 | */ | |
2566 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2567 | const struct snd_kcontrol_new *controls, int num_controls) | |
2568 | { | |
313665b9 | 2569 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2570 | |
2571 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2572 | NULL, dai); | |
2573 | } | |
2574 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2575 | ||
8c6529db LG |
2576 | /** |
2577 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2578 | * @dai: DAI | |
2579 | * @clk_id: DAI specific clock ID | |
2580 | * @freq: new clock frequency in Hz | |
2581 | * @dir: new clock direction - input/output. | |
2582 | * | |
2583 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2584 | */ | |
2585 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2586 | unsigned int freq, int dir) | |
2587 | { | |
f0fba2ad LG |
2588 | if (dai->driver && dai->driver->ops->set_sysclk) |
2589 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2590 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2591 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2592 | freq, dir); |
8c6529db | 2593 | else |
1104a9c8 | 2594 | return -ENOTSUPP; |
8c6529db LG |
2595 | } |
2596 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2597 | ||
ec4ee52a MB |
2598 | /** |
2599 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2600 | * @codec: CODEC | |
2601 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2602 | * @source: Source for the clock |
ec4ee52a MB |
2603 | * @freq: new clock frequency in Hz |
2604 | * @dir: new clock direction - input/output. | |
2605 | * | |
2606 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2607 | */ | |
2608 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2609 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2610 | { |
2611 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2612 | return codec->driver->set_sysclk(codec, clk_id, source, |
2613 | freq, dir); | |
ec4ee52a | 2614 | else |
1104a9c8 | 2615 | return -ENOTSUPP; |
ec4ee52a MB |
2616 | } |
2617 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2618 | ||
8c6529db LG |
2619 | /** |
2620 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2621 | * @dai: DAI | |
ac11a2b3 | 2622 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2623 | * @div: new clock divisor. |
2624 | * | |
2625 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2626 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2627 | * and frame clocks as low as possible to save system power. | |
2628 | */ | |
2629 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2630 | int div_id, int div) | |
2631 | { | |
f0fba2ad LG |
2632 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2633 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2634 | else |
2635 | return -EINVAL; | |
2636 | } | |
2637 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2638 | ||
2639 | /** | |
2640 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2641 | * @dai: DAI | |
2642 | * @pll_id: DAI specific PLL ID | |
85488037 | 2643 | * @source: DAI specific source for the PLL |
8c6529db LG |
2644 | * @freq_in: PLL input clock frequency in Hz |
2645 | * @freq_out: requested PLL output clock frequency in Hz | |
2646 | * | |
2647 | * Configures and enables PLL to generate output clock based on input clock. | |
2648 | */ | |
85488037 MB |
2649 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2650 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2651 | { |
f0fba2ad LG |
2652 | if (dai->driver && dai->driver->ops->set_pll) |
2653 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2654 | freq_in, freq_out); |
ec4ee52a MB |
2655 | else if (dai->codec && dai->codec->driver->set_pll) |
2656 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2657 | freq_in, freq_out); | |
8c6529db LG |
2658 | else |
2659 | return -EINVAL; | |
2660 | } | |
2661 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2662 | ||
ec4ee52a MB |
2663 | /* |
2664 | * snd_soc_codec_set_pll - configure codec PLL. | |
2665 | * @codec: CODEC | |
2666 | * @pll_id: DAI specific PLL ID | |
2667 | * @source: DAI specific source for the PLL | |
2668 | * @freq_in: PLL input clock frequency in Hz | |
2669 | * @freq_out: requested PLL output clock frequency in Hz | |
2670 | * | |
2671 | * Configures and enables PLL to generate output clock based on input clock. | |
2672 | */ | |
2673 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2674 | unsigned int freq_in, unsigned int freq_out) | |
2675 | { | |
2676 | if (codec->driver->set_pll) | |
2677 | return codec->driver->set_pll(codec, pll_id, source, | |
2678 | freq_in, freq_out); | |
2679 | else | |
2680 | return -EINVAL; | |
2681 | } | |
2682 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2683 | ||
e54cf76b LG |
2684 | /** |
2685 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2686 | * @dai: DAI | |
231b86b1 | 2687 | * @ratio: Ratio of BCLK to Sample rate. |
e54cf76b LG |
2688 | * |
2689 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2690 | */ | |
2691 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2692 | { | |
2693 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2694 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2695 | else | |
2696 | return -EINVAL; | |
2697 | } | |
2698 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2699 | ||
8c6529db LG |
2700 | /** |
2701 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2702 | * @dai: DAI | |
8c6529db LG |
2703 | * @fmt: SND_SOC_DAIFMT_ format value. |
2704 | * | |
2705 | * Configures the DAI hardware format and clocking. | |
2706 | */ | |
2707 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2708 | { | |
5e4ba569 | 2709 | if (dai->driver == NULL) |
8c6529db | 2710 | return -EINVAL; |
5e4ba569 SG |
2711 | if (dai->driver->ops->set_fmt == NULL) |
2712 | return -ENOTSUPP; | |
2713 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2714 | } |
2715 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2716 | ||
89c67857 | 2717 | /** |
e5c21514 | 2718 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2719 | * @slots: Number of slots in use. |
2720 | * @tx_mask: bitmask representing active TX slots. | |
2721 | * @rx_mask: bitmask representing active RX slots. | |
2722 | * | |
2723 | * Generates the TDM tx and rx slot default masks for DAI. | |
2724 | */ | |
e5c21514 | 2725 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2726 | unsigned int *tx_mask, |
2727 | unsigned int *rx_mask) | |
2728 | { | |
2729 | if (*tx_mask || *rx_mask) | |
2730 | return 0; | |
2731 | ||
2732 | if (!slots) | |
2733 | return -EINVAL; | |
2734 | ||
2735 | *tx_mask = (1 << slots) - 1; | |
2736 | *rx_mask = (1 << slots) - 1; | |
2737 | ||
2738 | return 0; | |
2739 | } | |
2740 | ||
8c6529db | 2741 | /** |
e46c9366 LPC |
2742 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2743 | * @dai: The DAI to configure | |
a5479e38 DR |
2744 | * @tx_mask: bitmask representing active TX slots. |
2745 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2746 | * @slots: Number of slots in use. |
a5479e38 | 2747 | * @slot_width: Width in bits for each slot. |
8c6529db | 2748 | * |
e46c9366 LPC |
2749 | * This function configures the specified DAI for TDM operation. @slot contains |
2750 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2751 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2752 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2753 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2754 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2755 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2756 | * maps to the first channel of the DAI, the second active slot to the second | |
2757 | * channel and so on. | |
2758 | * | |
2759 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2760 | * @rx_mask and @slot_width will be ignored. | |
2761 | * | |
2762 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2763 | */ |
2764 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2765 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2766 | { |
e5c21514 XL |
2767 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2768 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2769 | &tx_mask, &rx_mask); |
2770 | else | |
e5c21514 | 2771 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2772 | |
88bd870f BC |
2773 | dai->tx_mask = tx_mask; |
2774 | dai->rx_mask = rx_mask; | |
2775 | ||
f0fba2ad LG |
2776 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2777 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2778 | slots, slot_width); |
8c6529db | 2779 | else |
b2cbb6e1 | 2780 | return -ENOTSUPP; |
8c6529db LG |
2781 | } |
2782 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2783 | ||
472df3cb BS |
2784 | /** |
2785 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2786 | * @dai: DAI | |
2787 | * @tx_num: how many TX channels | |
2788 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2789 | * 0~num-1 uses | |
2790 | * @rx_num: how many RX channels | |
2791 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2792 | * 0~num-1 uses | |
2793 | * | |
2794 | * configure the relationship between channel number and TDM slot number. | |
2795 | */ | |
2796 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2797 | unsigned int tx_num, unsigned int *tx_slot, | |
2798 | unsigned int rx_num, unsigned int *rx_slot) | |
2799 | { | |
f0fba2ad LG |
2800 | if (dai->driver && dai->driver->ops->set_channel_map) |
2801 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2802 | rx_num, rx_slot); |
2803 | else | |
2804 | return -EINVAL; | |
2805 | } | |
2806 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2807 | ||
8c6529db LG |
2808 | /** |
2809 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2810 | * @dai: DAI | |
2811 | * @tristate: tristate enable | |
2812 | * | |
2813 | * Tristates the DAI so that others can use it. | |
2814 | */ | |
2815 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2816 | { | |
f0fba2ad LG |
2817 | if (dai->driver && dai->driver->ops->set_tristate) |
2818 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2819 | else |
2820 | return -EINVAL; | |
2821 | } | |
2822 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2823 | ||
2824 | /** | |
2825 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2826 | * @dai: DAI | |
2827 | * @mute: mute enable | |
da18396f | 2828 | * @direction: stream to mute |
8c6529db LG |
2829 | * |
2830 | * Mutes the DAI DAC. | |
2831 | */ | |
da18396f MB |
2832 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2833 | int direction) | |
8c6529db | 2834 | { |
da18396f MB |
2835 | if (!dai->driver) |
2836 | return -ENOTSUPP; | |
2837 | ||
2838 | if (dai->driver->ops->mute_stream) | |
2839 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2840 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2841 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2842 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2843 | else |
04570c62 | 2844 | return -ENOTSUPP; |
8c6529db LG |
2845 | } |
2846 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2847 | ||
c5af3a2e MB |
2848 | /** |
2849 | * snd_soc_register_card - Register a card with the ASoC core | |
2850 | * | |
ac11a2b3 | 2851 | * @card: Card to register |
c5af3a2e | 2852 | * |
c5af3a2e | 2853 | */ |
70a7ca34 | 2854 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2855 | { |
923c5e61 | 2856 | int i, ret; |
1a497983 | 2857 | struct snd_soc_pcm_runtime *rtd; |
f0fba2ad | 2858 | |
c5af3a2e MB |
2859 | if (!card->name || !card->dev) |
2860 | return -EINVAL; | |
2861 | ||
5a504963 SW |
2862 | for (i = 0; i < card->num_links; i++) { |
2863 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2864 | ||
923c5e61 | 2865 | ret = soc_init_dai_link(card, link); |
88bd870f | 2866 | if (ret) { |
923c5e61 | 2867 | dev_err(card->dev, "ASoC: failed to init link %s\n", |
10e8aa9a | 2868 | link->name); |
923c5e61 | 2869 | return ret; |
5a504963 SW |
2870 | } |
2871 | } | |
2872 | ||
ed77cc12 MB |
2873 | dev_set_drvdata(card->dev, card); |
2874 | ||
111c6419 SW |
2875 | snd_soc_initialize_card_lists(card); |
2876 | ||
f8f80361 ML |
2877 | INIT_LIST_HEAD(&card->dai_link_list); |
2878 | card->num_dai_links = 0; | |
2879 | ||
1a497983 ML |
2880 | INIT_LIST_HEAD(&card->rtd_list); |
2881 | card->num_rtd = 0; | |
2882 | ||
db432b41 | 2883 | INIT_LIST_HEAD(&card->dapm_dirty); |
8a978234 | 2884 | INIT_LIST_HEAD(&card->dobj_list); |
c5af3a2e | 2885 | card->instantiated = 0; |
f0fba2ad | 2886 | mutex_init(&card->mutex); |
a73fb2df | 2887 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2888 | |
b19e6e7b MB |
2889 | ret = snd_soc_instantiate_card(card); |
2890 | if (ret != 0) | |
4e2576bd | 2891 | return ret; |
c5af3a2e | 2892 | |
988e8cc4 | 2893 | /* deactivate pins to sleep state */ |
1a497983 | 2894 | list_for_each_entry(rtd, &card->rtd_list, list) { |
88bd870f BC |
2895 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2896 | int j; | |
2897 | ||
2898 | for (j = 0; j < rtd->num_codecs; j++) { | |
2899 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2900 | if (!codec_dai->active) | |
2901 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2902 | } | |
2903 | ||
988e8cc4 NC |
2904 | if (!cpu_dai->active) |
2905 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2906 | } | |
2907 | ||
b19e6e7b | 2908 | return ret; |
c5af3a2e | 2909 | } |
70a7ca34 | 2910 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2911 | |
2912 | /** | |
2913 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2914 | * | |
ac11a2b3 | 2915 | * @card: Card to unregister |
c5af3a2e | 2916 | * |
c5af3a2e | 2917 | */ |
70a7ca34 | 2918 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2919 | { |
01e0df66 LPC |
2920 | if (card->instantiated) { |
2921 | card->instantiated = false; | |
1c325f77 | 2922 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2923 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2924 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2925 | } |
c5af3a2e MB |
2926 | |
2927 | return 0; | |
2928 | } | |
70a7ca34 | 2929 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2930 | |
f0fba2ad LG |
2931 | /* |
2932 | * Simplify DAI link configuration by removing ".-1" from device names | |
2933 | * and sanitizing names. | |
2934 | */ | |
0b9a214a | 2935 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2936 | { |
2937 | char *found, name[NAME_SIZE]; | |
2938 | int id1, id2; | |
2939 | ||
2940 | if (dev_name(dev) == NULL) | |
2941 | return NULL; | |
2942 | ||
58818a77 | 2943 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2944 | |
2945 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2946 | found = strstr(name, dev->driver->name); | |
2947 | if (found) { | |
2948 | /* get ID */ | |
2949 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2950 | ||
2951 | /* discard ID from name if ID == -1 */ | |
2952 | if (*id == -1) | |
2953 | found[strlen(dev->driver->name)] = '\0'; | |
2954 | } | |
2955 | ||
2956 | } else { | |
2957 | /* I2C component devices are named "bus-addr" */ | |
2958 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2959 | char tmp[NAME_SIZE]; | |
2960 | ||
2961 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2962 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2963 | |
2964 | /* sanitize component name for DAI link creation */ | |
2965 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2966 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2967 | } else |
2968 | *id = 0; | |
2969 | } | |
2970 | ||
2971 | return kstrdup(name, GFP_KERNEL); | |
2972 | } | |
2973 | ||
2974 | /* | |
2975 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2976 | * any ".-1" and using the DAI name (instead of device name). | |
2977 | */ | |
2978 | static inline char *fmt_multiple_name(struct device *dev, | |
2979 | struct snd_soc_dai_driver *dai_drv) | |
2980 | { | |
2981 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2982 | dev_err(dev, |
2983 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2984 | dev_name(dev)); | |
f0fba2ad LG |
2985 | return NULL; |
2986 | } | |
2987 | ||
2988 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2989 | } | |
2990 | ||
9115171a | 2991 | /** |
32c9ba54 | 2992 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2993 | * |
32c9ba54 | 2994 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2995 | */ |
32c9ba54 | 2996 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2997 | { |
5c1d5f09 | 2998 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2999 | |
5c1d5f09 | 3000 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
3001 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
3002 | dai->name); | |
5c1d5f09 | 3003 | list_del(&dai->list); |
32c9ba54 | 3004 | kfree(dai->name); |
f0fba2ad | 3005 | kfree(dai); |
f0fba2ad | 3006 | } |
9115171a | 3007 | } |
9115171a | 3008 | |
5e4fb372 ML |
3009 | /* Create a DAI and add it to the component's DAI list */ |
3010 | static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, | |
3011 | struct snd_soc_dai_driver *dai_drv, | |
3012 | bool legacy_dai_naming) | |
3013 | { | |
3014 | struct device *dev = component->dev; | |
3015 | struct snd_soc_dai *dai; | |
3016 | ||
3017 | dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); | |
3018 | ||
3019 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
3020 | if (dai == NULL) | |
3021 | return NULL; | |
3022 | ||
3023 | /* | |
3024 | * Back in the old days when we still had component-less DAIs, | |
3025 | * instead of having a static name, component-less DAIs would | |
3026 | * inherit the name of the parent device so it is possible to | |
3027 | * register multiple instances of the DAI. We still need to keep | |
3028 | * the same naming style even though those DAIs are not | |
3029 | * component-less anymore. | |
3030 | */ | |
3031 | if (legacy_dai_naming && | |
3032 | (dai_drv->id == 0 || dai_drv->name == NULL)) { | |
3033 | dai->name = fmt_single_name(dev, &dai->id); | |
3034 | } else { | |
3035 | dai->name = fmt_multiple_name(dev, dai_drv); | |
3036 | if (dai_drv->id) | |
3037 | dai->id = dai_drv->id; | |
3038 | else | |
3039 | dai->id = component->num_dai; | |
3040 | } | |
3041 | if (dai->name == NULL) { | |
3042 | kfree(dai); | |
3043 | return NULL; | |
3044 | } | |
3045 | ||
3046 | dai->component = component; | |
3047 | dai->dev = dev; | |
3048 | dai->driver = dai_drv; | |
3049 | if (!dai->driver->ops) | |
3050 | dai->driver->ops = &null_dai_ops; | |
3051 | ||
3052 | list_add(&dai->list, &component->dai_list); | |
3053 | component->num_dai++; | |
3054 | ||
3055 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); | |
3056 | return dai; | |
3057 | } | |
3058 | ||
9115171a | 3059 | /** |
32c9ba54 | 3060 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 3061 | * |
6106d129 LPC |
3062 | * @component: The component the DAIs are registered for |
3063 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 3064 | * @count: Number of DAIs |
32c9ba54 LPC |
3065 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
3066 | * parent's name. | |
9115171a | 3067 | */ |
6106d129 | 3068 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
3069 | struct snd_soc_dai_driver *dai_drv, size_t count, |
3070 | bool legacy_dai_naming) | |
9115171a | 3071 | { |
6106d129 | 3072 | struct device *dev = component->dev; |
f0fba2ad | 3073 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
3074 | unsigned int i; |
3075 | int ret; | |
f0fba2ad | 3076 | |
5b5e0928 | 3077 | dev_dbg(dev, "ASoC: dai register %s #%zu\n", dev_name(dev), count); |
9115171a | 3078 | |
bb13109d | 3079 | component->dai_drv = dai_drv; |
bb13109d | 3080 | |
9115171a | 3081 | for (i = 0; i < count; i++) { |
f0fba2ad | 3082 | |
5e4fb372 ML |
3083 | dai = soc_add_dai(component, dai_drv + i, |
3084 | count == 1 && legacy_dai_naming); | |
c46e0079 AL |
3085 | if (dai == NULL) { |
3086 | ret = -ENOMEM; | |
3087 | goto err; | |
3088 | } | |
9115171a | 3089 | } |
f0fba2ad | 3090 | |
9115171a | 3091 | return 0; |
f0fba2ad | 3092 | |
9115171a | 3093 | err: |
32c9ba54 | 3094 | snd_soc_unregister_dais(component); |
f0fba2ad | 3095 | |
9115171a MB |
3096 | return ret; |
3097 | } | |
9115171a | 3098 | |
68003e6c ML |
3099 | /** |
3100 | * snd_soc_register_dai - Register a DAI dynamically & create its widgets | |
3101 | * | |
3102 | * @component: The component the DAIs are registered for | |
3103 | * @dai_drv: DAI driver to use for the DAI | |
3104 | * | |
3105 | * Topology can use this API to register DAIs when probing a component. | |
3106 | * These DAIs's widgets will be freed in the card cleanup and the DAIs | |
3107 | * will be freed in the component cleanup. | |
3108 | */ | |
3109 | int snd_soc_register_dai(struct snd_soc_component *component, | |
3110 | struct snd_soc_dai_driver *dai_drv) | |
3111 | { | |
3112 | struct snd_soc_dapm_context *dapm = | |
3113 | snd_soc_component_get_dapm(component); | |
3114 | struct snd_soc_dai *dai; | |
3115 | int ret; | |
054880fe | 3116 | |
68003e6c ML |
3117 | if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) { |
3118 | dev_err(component->dev, "Invalid dai type %d\n", | |
3119 | dai_drv->dobj.type); | |
3120 | return -EINVAL; | |
9115171a MB |
3121 | } |
3122 | ||
68003e6c ML |
3123 | lockdep_assert_held(&client_mutex); |
3124 | dai = soc_add_dai(component, dai_drv, false); | |
3125 | if (!dai) | |
3126 | return -ENOMEM; | |
9115171a | 3127 | |
68003e6c ML |
3128 | /* Create the DAI widgets here. After adding DAIs, topology may |
3129 | * also add routes that need these widgets as source or sink. | |
3130 | */ | |
3131 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
3132 | if (ret != 0) { | |
3133 | dev_err(component->dev, | |
3134 | "Failed to create DAI widgets %d\n", ret); | |
3135 | } | |
9115171a MB |
3136 | |
3137 | return ret; | |
3138 | } | |
68003e6c | 3139 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); |
9115171a | 3140 | |
14e8bdeb LPC |
3141 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
3142 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 3143 | { |
14e8bdeb | 3144 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 3145 | |
14e8bdeb LPC |
3146 | component->driver->seq_notifier(component, type, subseq); |
3147 | } | |
d191bd8d | 3148 | |
14e8bdeb LPC |
3149 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
3150 | int event) | |
3151 | { | |
3152 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 3153 | |
14e8bdeb LPC |
3154 | return component->driver->stream_event(component, event); |
3155 | } | |
e2c330b9 | 3156 | |
bb13109d LPC |
3157 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
3158 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 3159 | { |
ce0fc93a LPC |
3160 | struct snd_soc_dapm_context *dapm; |
3161 | ||
bb13109d LPC |
3162 | component->name = fmt_single_name(dev, &component->id); |
3163 | if (!component->name) { | |
3164 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
3165 | return -ENOMEM; |
3166 | } | |
3167 | ||
bb13109d LPC |
3168 | component->dev = dev; |
3169 | component->driver = driver; | |
61aca564 LPC |
3170 | component->probe = component->driver->probe; |
3171 | component->remove = component->driver->remove; | |
9178feb4 KM |
3172 | component->suspend = component->driver->suspend; |
3173 | component->resume = component->driver->resume; | |
99b04f4c | 3174 | component->pcm_new = component->driver->pcm_new; |
ec5a82d6 | 3175 | component->pcm_free = component->driver->pcm_free; |
d191bd8d | 3176 | |
4890140f | 3177 | dapm = &component->dapm; |
ce0fc93a LPC |
3178 | dapm->dev = dev; |
3179 | dapm->component = component; | |
3180 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 3181 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
3182 | if (driver->seq_notifier) |
3183 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
3184 | if (driver->stream_event) | |
3185 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 3186 | |
61aca564 LPC |
3187 | component->controls = driver->controls; |
3188 | component->num_controls = driver->num_controls; | |
3189 | component->dapm_widgets = driver->dapm_widgets; | |
3190 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
3191 | component->dapm_routes = driver->dapm_routes; | |
3192 | component->num_dapm_routes = driver->num_dapm_routes; | |
3193 | ||
bb13109d LPC |
3194 | INIT_LIST_HEAD(&component->dai_list); |
3195 | mutex_init(&component->io_mutex); | |
d191bd8d | 3196 | |
bb13109d LPC |
3197 | return 0; |
3198 | } | |
d191bd8d | 3199 | |
20feb881 | 3200 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 3201 | { |
20feb881 LPC |
3202 | int val_bytes = regmap_get_val_bytes(component->regmap); |
3203 | ||
3204 | /* Errors are legitimate for non-integer byte multiples */ | |
3205 | if (val_bytes > 0) | |
3206 | component->val_bytes = val_bytes; | |
3207 | } | |
3208 | ||
e874bf5f LPC |
3209 | #ifdef CONFIG_REGMAP |
3210 | ||
20feb881 LPC |
3211 | /** |
3212 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
3213 | * @component: The component for which to initialize the regmap instance | |
3214 | * @regmap: The regmap instance that should be used by the component | |
3215 | * | |
3216 | * This function allows deferred assignment of the regmap instance that is | |
3217 | * associated with the component. Only use this if the regmap instance is not | |
3218 | * yet ready when the component is registered. The function must also be called | |
3219 | * before the first IO attempt of the component. | |
3220 | */ | |
3221 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
3222 | struct regmap *regmap) | |
3223 | { | |
3224 | component->regmap = regmap; | |
3225 | snd_soc_component_setup_regmap(component); | |
886f5692 | 3226 | } |
20feb881 LPC |
3227 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
3228 | ||
3229 | /** | |
3230 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
3231 | * @component: The component for which to de-initialize the regmap instance | |
3232 | * | |
3233 | * Calls regmap_exit() on the regmap instance associated to the component and | |
3234 | * removes the regmap instance from the component. | |
3235 | * | |
3236 | * This function should only be used if snd_soc_component_init_regmap() was used | |
3237 | * to initialize the regmap instance. | |
3238 | */ | |
3239 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
3240 | { | |
3241 | regmap_exit(component->regmap); | |
3242 | component->regmap = NULL; | |
3243 | } | |
3244 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 3245 | |
e874bf5f | 3246 | #endif |
886f5692 | 3247 | |
bb13109d LPC |
3248 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
3249 | { | |
20feb881 LPC |
3250 | if (!component->write && !component->read) { |
3251 | if (!component->regmap) | |
3252 | component->regmap = dev_get_regmap(component->dev, NULL); | |
3253 | if (component->regmap) | |
3254 | snd_soc_component_setup_regmap(component); | |
3255 | } | |
886f5692 | 3256 | |
bb13109d | 3257 | list_add(&component->list, &component_list); |
8a978234 | 3258 | INIT_LIST_HEAD(&component->dobj_list); |
bb13109d | 3259 | } |
d191bd8d | 3260 | |
bb13109d LPC |
3261 | static void snd_soc_component_add(struct snd_soc_component *component) |
3262 | { | |
d191bd8d | 3263 | mutex_lock(&client_mutex); |
bb13109d | 3264 | snd_soc_component_add_unlocked(component); |
d191bd8d | 3265 | mutex_unlock(&client_mutex); |
bb13109d | 3266 | } |
d191bd8d | 3267 | |
bb13109d LPC |
3268 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
3269 | { | |
3270 | snd_soc_unregister_dais(component); | |
3271 | kfree(component->name); | |
3272 | } | |
d191bd8d | 3273 | |
bb13109d LPC |
3274 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
3275 | { | |
c12c1aad KM |
3276 | struct snd_soc_card *card = component->card; |
3277 | ||
3278 | if (card) | |
3279 | snd_soc_unregister_card(card); | |
3280 | ||
bb13109d LPC |
3281 | list_del(&component->list); |
3282 | } | |
d191bd8d | 3283 | |
d191bd8d | 3284 | int snd_soc_register_component(struct device *dev, |
cf9e829e | 3285 | const struct snd_soc_component_driver *component_driver, |
d191bd8d KM |
3286 | struct snd_soc_dai_driver *dai_drv, |
3287 | int num_dai) | |
3288 | { | |
cf9e829e | 3289 | struct snd_soc_component *component; |
bb13109d | 3290 | int ret; |
d191bd8d | 3291 | |
cf9e829e KM |
3292 | component = kzalloc(sizeof(*component), GFP_KERNEL); |
3293 | if (!component) { | |
d191bd8d KM |
3294 | dev_err(dev, "ASoC: Failed to allocate memory\n"); |
3295 | return -ENOMEM; | |
3296 | } | |
3297 | ||
cf9e829e | 3298 | ret = snd_soc_component_initialize(component, component_driver, dev); |
bb13109d LPC |
3299 | if (ret) |
3300 | goto err_free; | |
3301 | ||
cf9e829e KM |
3302 | component->ignore_pmdown_time = true; |
3303 | component->registered_as_component = true; | |
3d59400f | 3304 | |
cf9e829e | 3305 | ret = snd_soc_register_dais(component, dai_drv, num_dai, true); |
bb13109d | 3306 | if (ret < 0) { |
f42cf8d6 | 3307 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d LPC |
3308 | goto err_cleanup; |
3309 | } | |
d191bd8d | 3310 | |
cf9e829e | 3311 | snd_soc_component_add(component); |
4da53393 | 3312 | |
bb13109d | 3313 | return 0; |
4da53393 | 3314 | |
bb13109d | 3315 | err_cleanup: |
cf9e829e | 3316 | snd_soc_component_cleanup(component); |
bb13109d | 3317 | err_free: |
cf9e829e | 3318 | kfree(component); |
bb13109d | 3319 | return ret; |
4da53393 | 3320 | } |
bb13109d | 3321 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 3322 | |
d191bd8d KM |
3323 | /** |
3324 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
3325 | * | |
628536ea | 3326 | * @dev: The device to unregister |
d191bd8d KM |
3327 | */ |
3328 | void snd_soc_unregister_component(struct device *dev) | |
3329 | { | |
cf9e829e | 3330 | struct snd_soc_component *component; |
21a03528 | 3331 | int found = 0; |
d191bd8d | 3332 | |
34e81ab4 | 3333 | mutex_lock(&client_mutex); |
cf9e829e | 3334 | list_for_each_entry(component, &component_list, list) { |
21a03528 KM |
3335 | if (dev != component->dev || |
3336 | !component->registered_as_component) | |
3337 | continue; | |
3338 | ||
3339 | snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL); | |
3340 | snd_soc_component_del_unlocked(component); | |
3341 | found = 1; | |
3342 | break; | |
d191bd8d | 3343 | } |
34e81ab4 | 3344 | mutex_unlock(&client_mutex); |
d191bd8d | 3345 | |
21a03528 KM |
3346 | if (found) { |
3347 | snd_soc_component_cleanup(component); | |
3348 | kfree(component); | |
3349 | } | |
d191bd8d KM |
3350 | } |
3351 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 3352 | |
f1d45cc3 | 3353 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
3354 | { |
3355 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 3356 | |
f1d45cc3 | 3357 | return platform->driver->probe(platform); |
e2c330b9 LPC |
3358 | } |
3359 | ||
f1d45cc3 | 3360 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
3361 | { |
3362 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
3363 | ||
f1d45cc3 | 3364 | platform->driver->remove(platform); |
d191bd8d | 3365 | } |
d191bd8d | 3366 | |
99b04f4c KM |
3367 | static int snd_soc_platform_drv_pcm_new(struct snd_soc_pcm_runtime *rtd) |
3368 | { | |
3369 | struct snd_soc_platform *platform = rtd->platform; | |
3370 | ||
d6c098a1 BN |
3371 | if (platform->driver->pcm_new) |
3372 | return platform->driver->pcm_new(rtd); | |
3373 | else | |
3374 | return 0; | |
99b04f4c KM |
3375 | } |
3376 | ||
3377 | static void snd_soc_platform_drv_pcm_free(struct snd_pcm *pcm) | |
3378 | { | |
3379 | struct snd_soc_pcm_runtime *rtd = pcm->private_data; | |
3380 | struct snd_soc_platform *platform = rtd->platform; | |
3381 | ||
d6c098a1 BN |
3382 | if (platform->driver->pcm_free) |
3383 | platform->driver->pcm_free(pcm); | |
99b04f4c KM |
3384 | } |
3385 | ||
12a48a8c | 3386 | /** |
71a45cda LPC |
3387 | * snd_soc_add_platform - Add a platform to the ASoC core |
3388 | * @dev: The parent device for the platform | |
3389 | * @platform: The platform to add | |
7d1442b4 | 3390 | * @platform_drv: The driver for the platform |
12a48a8c | 3391 | */ |
71a45cda | 3392 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 3393 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 3394 | { |
b37f1d12 LPC |
3395 | int ret; |
3396 | ||
bb13109d LPC |
3397 | ret = snd_soc_component_initialize(&platform->component, |
3398 | &platform_drv->component_driver, dev); | |
3399 | if (ret) | |
3400 | return ret; | |
12a48a8c | 3401 | |
f0fba2ad LG |
3402 | platform->dev = dev; |
3403 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
3404 | |
3405 | if (platform_drv->probe) | |
3406 | platform->component.probe = snd_soc_platform_drv_probe; | |
3407 | if (platform_drv->remove) | |
3408 | platform->component.remove = snd_soc_platform_drv_remove; | |
99b04f4c KM |
3409 | if (platform_drv->pcm_new) |
3410 | platform->component.pcm_new = snd_soc_platform_drv_pcm_new; | |
3411 | if (platform_drv->pcm_free) | |
3412 | platform->component.pcm_free = snd_soc_platform_drv_pcm_free; | |
12a48a8c | 3413 | |
81c7cfd1 LPC |
3414 | #ifdef CONFIG_DEBUG_FS |
3415 | platform->component.debugfs_prefix = "platform"; | |
3416 | #endif | |
12a48a8c MB |
3417 | |
3418 | mutex_lock(&client_mutex); | |
bb13109d | 3419 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
3420 | list_add(&platform->list, &platform_list); |
3421 | mutex_unlock(&client_mutex); | |
3422 | ||
f4333203 LPC |
3423 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
3424 | platform->component.name); | |
12a48a8c MB |
3425 | |
3426 | return 0; | |
3427 | } | |
71a45cda | 3428 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
3429 | |
3430 | /** | |
71a45cda | 3431 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 3432 | * |
628536ea JC |
3433 | * @dev: The device for the platform |
3434 | * @platform_drv: The driver for the platform | |
12a48a8c | 3435 | */ |
71a45cda LPC |
3436 | int snd_soc_register_platform(struct device *dev, |
3437 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3438 | { |
f0fba2ad | 3439 | struct snd_soc_platform *platform; |
71a45cda | 3440 | int ret; |
f0fba2ad | 3441 | |
71a45cda | 3442 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 3443 | |
71a45cda LPC |
3444 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
3445 | if (platform == NULL) | |
3446 | return -ENOMEM; | |
3447 | ||
3448 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
3449 | if (ret) | |
3450 | kfree(platform); | |
3451 | ||
3452 | return ret; | |
3453 | } | |
3454 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3455 | ||
3456 | /** | |
3457 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
3458 | * @platform: the platform to remove | |
3459 | */ | |
3460 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
3461 | { | |
b37f1d12 | 3462 | |
12a48a8c MB |
3463 | mutex_lock(&client_mutex); |
3464 | list_del(&platform->list); | |
bb13109d | 3465 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
3466 | mutex_unlock(&client_mutex); |
3467 | ||
71a45cda | 3468 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 3469 | platform->component.name); |
decc27b0 DM |
3470 | |
3471 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
3472 | } |
3473 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
3474 | ||
3475 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
3476 | { | |
3477 | struct snd_soc_platform *platform; | |
3478 | ||
34e81ab4 | 3479 | mutex_lock(&client_mutex); |
71a45cda | 3480 | list_for_each_entry(platform, &platform_list, list) { |
34e81ab4 LPC |
3481 | if (dev == platform->dev) { |
3482 | mutex_unlock(&client_mutex); | |
71a45cda | 3483 | return platform; |
34e81ab4 | 3484 | } |
71a45cda | 3485 | } |
34e81ab4 | 3486 | mutex_unlock(&client_mutex); |
71a45cda LPC |
3487 | |
3488 | return NULL; | |
3489 | } | |
3490 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
3491 | ||
3492 | /** | |
3493 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3494 | * | |
628536ea | 3495 | * @dev: platform to unregister |
71a45cda LPC |
3496 | */ |
3497 | void snd_soc_unregister_platform(struct device *dev) | |
3498 | { | |
3499 | struct snd_soc_platform *platform; | |
3500 | ||
3501 | platform = snd_soc_lookup_platform(dev); | |
3502 | if (!platform) | |
3503 | return; | |
3504 | ||
3505 | snd_soc_remove_platform(platform); | |
f0fba2ad | 3506 | kfree(platform); |
12a48a8c MB |
3507 | } |
3508 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3509 | ||
151ab22c MB |
3510 | static u64 codec_format_map[] = { |
3511 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3512 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3513 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3514 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3515 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3516 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3517 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3518 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3519 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3520 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3521 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3522 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3523 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3524 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3525 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3526 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3527 | }; | |
3528 | ||
3529 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3530 | * the endianness of the data but we're using the CPU format | |
3531 | * definitions which do need to include endianness so we ensure that | |
3532 | * codec DAIs always have both big and little endian variants set. | |
3533 | */ | |
3534 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3535 | { | |
3536 | int i; | |
3537 | ||
3538 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3539 | if (stream->formats & codec_format_map[i]) | |
3540 | stream->formats |= codec_format_map[i]; | |
3541 | } | |
3542 | ||
f1d45cc3 LPC |
3543 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
3544 | { | |
3545 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3546 | ||
3547 | return codec->driver->probe(codec); | |
3548 | } | |
3549 | ||
3550 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
3551 | { | |
3552 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3553 | ||
3554 | codec->driver->remove(codec); | |
3555 | } | |
3556 | ||
9178feb4 KM |
3557 | static int snd_soc_codec_drv_suspend(struct snd_soc_component *component) |
3558 | { | |
3559 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3560 | ||
3561 | return codec->driver->suspend(codec); | |
3562 | } | |
3563 | ||
3564 | static int snd_soc_codec_drv_resume(struct snd_soc_component *component) | |
3565 | { | |
3566 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3567 | ||
3568 | return codec->driver->resume(codec); | |
3569 | } | |
3570 | ||
e2c330b9 LPC |
3571 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
3572 | unsigned int reg, unsigned int val) | |
3573 | { | |
3574 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3575 | ||
3576 | return codec->driver->write(codec, reg, val); | |
3577 | } | |
3578 | ||
3579 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
3580 | unsigned int reg, unsigned int *val) | |
3581 | { | |
3582 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3583 | ||
3584 | *val = codec->driver->read(codec, reg); | |
3585 | ||
3586 | return 0; | |
3587 | } | |
3588 | ||
68f831c2 LPC |
3589 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
3590 | enum snd_soc_bias_level level) | |
3591 | { | |
3592 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
3593 | ||
3594 | return codec->driver->set_bias_level(codec, level); | |
3595 | } | |
3596 | ||
0d0cf00a MB |
3597 | /** |
3598 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3599 | * | |
628536ea JC |
3600 | * @dev: The parent device for this codec |
3601 | * @codec_drv: Codec driver | |
3602 | * @dai_drv: The associated DAI driver | |
3603 | * @num_dai: Number of DAIs | |
0d0cf00a | 3604 | */ |
f0fba2ad | 3605 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3606 | const struct snd_soc_codec_driver *codec_drv, |
3607 | struct snd_soc_dai_driver *dai_drv, | |
3608 | int num_dai) | |
0d0cf00a | 3609 | { |
4890140f | 3610 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3611 | struct snd_soc_codec *codec; |
bb13109d | 3612 | struct snd_soc_dai *dai; |
f0fba2ad | 3613 | int ret, i; |
151ab22c | 3614 | |
f0fba2ad LG |
3615 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3616 | ||
3617 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3618 | if (codec == NULL) | |
3619 | return -ENOMEM; | |
0d0cf00a | 3620 | |
f1d45cc3 | 3621 | codec->component.codec = codec; |
ce0fc93a | 3622 | |
bb13109d LPC |
3623 | ret = snd_soc_component_initialize(&codec->component, |
3624 | &codec_drv->component_driver, dev); | |
3625 | if (ret) | |
3626 | goto err_free; | |
f0fba2ad | 3627 | |
f1d45cc3 LPC |
3628 | if (codec_drv->probe) |
3629 | codec->component.probe = snd_soc_codec_drv_probe; | |
3630 | if (codec_drv->remove) | |
3631 | codec->component.remove = snd_soc_codec_drv_remove; | |
9178feb4 KM |
3632 | if (codec_drv->suspend) |
3633 | codec->component.suspend = snd_soc_codec_drv_suspend; | |
3634 | if (codec_drv->resume) | |
3635 | codec->component.resume = snd_soc_codec_drv_resume; | |
e2c330b9 LPC |
3636 | if (codec_drv->write) |
3637 | codec->component.write = snd_soc_codec_drv_write; | |
3638 | if (codec_drv->read) | |
3639 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3640 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
4890140f LPC |
3641 | |
3642 | dapm = snd_soc_codec_get_dapm(codec); | |
3643 | dapm->idle_bias_off = codec_drv->idle_bias_off; | |
3644 | dapm->suspend_bias_off = codec_drv->suspend_bias_off; | |
14e8bdeb | 3645 | if (codec_drv->seq_notifier) |
4890140f | 3646 | dapm->seq_notifier = codec_drv->seq_notifier; |
68f831c2 | 3647 | if (codec_drv->set_bias_level) |
4890140f | 3648 | dapm->set_bias_level = snd_soc_codec_set_bias_level; |
7a30a3db DP |
3649 | codec->dev = dev; |
3650 | codec->driver = codec_drv; | |
e2c330b9 | 3651 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3652 | |
81c7cfd1 LPC |
3653 | #ifdef CONFIG_DEBUG_FS |
3654 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3655 | codec->component.debugfs_prefix = "codec"; | |
3656 | #endif | |
3657 | ||
886f5692 LPC |
3658 | if (codec_drv->get_regmap) |
3659 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3660 | |
f0fba2ad LG |
3661 | for (i = 0; i < num_dai; i++) { |
3662 | fixup_codec_formats(&dai_drv[i].playback); | |
3663 | fixup_codec_formats(&dai_drv[i].capture); | |
3664 | } | |
3665 | ||
bb13109d | 3666 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3667 | if (ret < 0) { |
f42cf8d6 | 3668 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d | 3669 | goto err_cleanup; |
26b01ccd | 3670 | } |
f0fba2ad | 3671 | |
bb13109d LPC |
3672 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3673 | dai->codec = codec; | |
f0fba2ad | 3674 | |
e1328a83 | 3675 | mutex_lock(&client_mutex); |
bb13109d | 3676 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3677 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3678 | mutex_unlock(&client_mutex); |
3679 | ||
f4333203 LPC |
3680 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3681 | codec->component.name); | |
0d0cf00a | 3682 | return 0; |
f0fba2ad | 3683 | |
bb13109d LPC |
3684 | err_cleanup: |
3685 | snd_soc_component_cleanup(&codec->component); | |
3686 | err_free: | |
f0fba2ad LG |
3687 | kfree(codec); |
3688 | return ret; | |
0d0cf00a MB |
3689 | } |
3690 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3691 | ||
3692 | /** | |
3693 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3694 | * | |
628536ea | 3695 | * @dev: codec to unregister |
0d0cf00a | 3696 | */ |
f0fba2ad | 3697 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3698 | { |
f0fba2ad | 3699 | struct snd_soc_codec *codec; |
f0fba2ad | 3700 | |
34e81ab4 | 3701 | mutex_lock(&client_mutex); |
f0fba2ad LG |
3702 | list_for_each_entry(codec, &codec_list, list) { |
3703 | if (dev == codec->dev) | |
3704 | goto found; | |
3705 | } | |
34e81ab4 | 3706 | mutex_unlock(&client_mutex); |
f0fba2ad LG |
3707 | return; |
3708 | ||
3709 | found: | |
0d0cf00a | 3710 | list_del(&codec->list); |
bb13109d | 3711 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3712 | mutex_unlock(&client_mutex); |
3713 | ||
f4333203 LPC |
3714 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3715 | codec->component.name); | |
f0fba2ad | 3716 | |
bb13109d | 3717 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3718 | snd_soc_cache_exit(codec); |
f0fba2ad | 3719 | kfree(codec); |
0d0cf00a MB |
3720 | } |
3721 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3722 | ||
bec4fa05 | 3723 | /* Retrieve a card's name from device tree */ |
b07609ce KM |
3724 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, |
3725 | const char *propname) | |
bec4fa05 | 3726 | { |
b07609ce | 3727 | struct device_node *np; |
bec4fa05 SW |
3728 | int ret; |
3729 | ||
7e07e7c0 TB |
3730 | if (!card->dev) { |
3731 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3732 | return -EINVAL; | |
3733 | } | |
3734 | ||
b07609ce | 3735 | np = card->dev->of_node; |
7e07e7c0 | 3736 | |
bec4fa05 SW |
3737 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3738 | /* | |
3739 | * EINVAL means the property does not exist. This is fine providing | |
3740 | * card->name was previously set, which is checked later in | |
3741 | * snd_soc_register_card. | |
3742 | */ | |
3743 | if (ret < 0 && ret != -EINVAL) { | |
3744 | dev_err(card->dev, | |
f110bfc7 | 3745 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3746 | propname, ret); |
3747 | return ret; | |
3748 | } | |
3749 | ||
3750 | return 0; | |
3751 | } | |
b07609ce | 3752 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); |
bec4fa05 | 3753 | |
9a6d4860 XL |
3754 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3755 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3756 | SND_SOC_DAPM_LINE("Line", NULL), | |
3757 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3758 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3759 | }; | |
3760 | ||
21efde50 | 3761 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, |
9a6d4860 XL |
3762 | const char *propname) |
3763 | { | |
21efde50 | 3764 | struct device_node *np = card->dev->of_node; |
9a6d4860 XL |
3765 | struct snd_soc_dapm_widget *widgets; |
3766 | const char *template, *wname; | |
3767 | int i, j, num_widgets, ret; | |
3768 | ||
3769 | num_widgets = of_property_count_strings(np, propname); | |
3770 | if (num_widgets < 0) { | |
3771 | dev_err(card->dev, | |
3772 | "ASoC: Property '%s' does not exist\n", propname); | |
3773 | return -EINVAL; | |
3774 | } | |
3775 | if (num_widgets & 1) { | |
3776 | dev_err(card->dev, | |
3777 | "ASoC: Property '%s' length is not even\n", propname); | |
3778 | return -EINVAL; | |
3779 | } | |
3780 | ||
3781 | num_widgets /= 2; | |
3782 | if (!num_widgets) { | |
3783 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3784 | propname); | |
3785 | return -EINVAL; | |
3786 | } | |
3787 | ||
3788 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3789 | GFP_KERNEL); | |
3790 | if (!widgets) { | |
3791 | dev_err(card->dev, | |
3792 | "ASoC: Could not allocate memory for widgets\n"); | |
3793 | return -ENOMEM; | |
3794 | } | |
3795 | ||
3796 | for (i = 0; i < num_widgets; i++) { | |
3797 | ret = of_property_read_string_index(np, propname, | |
3798 | 2 * i, &template); | |
3799 | if (ret) { | |
3800 | dev_err(card->dev, | |
3801 | "ASoC: Property '%s' index %d read error:%d\n", | |
3802 | propname, 2 * i, ret); | |
3803 | return -EINVAL; | |
3804 | } | |
3805 | ||
3806 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3807 | if (!strncmp(template, simple_widgets[j].name, | |
3808 | strlen(simple_widgets[j].name))) { | |
3809 | widgets[i] = simple_widgets[j]; | |
3810 | break; | |
3811 | } | |
3812 | } | |
3813 | ||
3814 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3815 | dev_err(card->dev, | |
3816 | "ASoC: DAPM widget '%s' is not supported\n", | |
3817 | template); | |
3818 | return -EINVAL; | |
3819 | } | |
3820 | ||
3821 | ret = of_property_read_string_index(np, propname, | |
3822 | (2 * i) + 1, | |
3823 | &wname); | |
3824 | if (ret) { | |
3825 | dev_err(card->dev, | |
3826 | "ASoC: Property '%s' index %d read error:%d\n", | |
3827 | propname, (2 * i) + 1, ret); | |
3828 | return -EINVAL; | |
3829 | } | |
3830 | ||
3831 | widgets[i].name = wname; | |
3832 | } | |
3833 | ||
f23e860e NC |
3834 | card->of_dapm_widgets = widgets; |
3835 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
3836 | |
3837 | return 0; | |
3838 | } | |
21efde50 | 3839 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); |
9a6d4860 | 3840 | |
6131084a JS |
3841 | static int snd_soc_of_get_slot_mask(struct device_node *np, |
3842 | const char *prop_name, | |
3843 | unsigned int *mask) | |
3844 | { | |
3845 | u32 val; | |
6c84e591 | 3846 | const __be32 *of_slot_mask = of_get_property(np, prop_name, &val); |
6131084a JS |
3847 | int i; |
3848 | ||
3849 | if (!of_slot_mask) | |
3850 | return 0; | |
3851 | val /= sizeof(u32); | |
3852 | for (i = 0; i < val; i++) | |
3853 | if (be32_to_cpup(&of_slot_mask[i])) | |
3854 | *mask |= (1 << i); | |
3855 | ||
3856 | return val; | |
3857 | } | |
3858 | ||
89c67857 | 3859 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
6131084a JS |
3860 | unsigned int *tx_mask, |
3861 | unsigned int *rx_mask, | |
89c67857 XL |
3862 | unsigned int *slots, |
3863 | unsigned int *slot_width) | |
3864 | { | |
3865 | u32 val; | |
3866 | int ret; | |
3867 | ||
6131084a JS |
3868 | if (tx_mask) |
3869 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask); | |
3870 | if (rx_mask) | |
3871 | snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask); | |
3872 | ||
89c67857 XL |
3873 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { |
3874 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3875 | if (ret) | |
3876 | return ret; | |
3877 | ||
3878 | if (slots) | |
3879 | *slots = val; | |
3880 | } | |
3881 | ||
3882 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3883 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3884 | if (ret) | |
3885 | return ret; | |
3886 | ||
3887 | if (slot_width) | |
3888 | *slot_width = val; | |
3889 | } | |
3890 | ||
3891 | return 0; | |
3892 | } | |
3893 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3894 | ||
440a3006 | 3895 | void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, |
5e3cdaa2 KM |
3896 | struct snd_soc_codec_conf *codec_conf, |
3897 | struct device_node *of_node, | |
3898 | const char *propname) | |
3899 | { | |
440a3006 | 3900 | struct device_node *np = card->dev->of_node; |
5e3cdaa2 KM |
3901 | const char *str; |
3902 | int ret; | |
3903 | ||
3904 | ret = of_property_read_string(np, propname, &str); | |
3905 | if (ret < 0) { | |
3906 | /* no prefix is not error */ | |
3907 | return; | |
3908 | } | |
3909 | ||
3910 | codec_conf->of_node = of_node; | |
3911 | codec_conf->name_prefix = str; | |
3912 | } | |
440a3006 | 3913 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix); |
5e3cdaa2 | 3914 | |
2bc644af | 3915 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
a4a54dd5 SW |
3916 | const char *propname) |
3917 | { | |
2bc644af | 3918 | struct device_node *np = card->dev->of_node; |
e3b1e6a1 | 3919 | int num_routes; |
a4a54dd5 SW |
3920 | struct snd_soc_dapm_route *routes; |
3921 | int i, ret; | |
3922 | ||
3923 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3924 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3925 | dev_err(card->dev, |
3926 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3927 | propname); | |
a4a54dd5 SW |
3928 | return -EINVAL; |
3929 | } | |
3930 | num_routes /= 2; | |
3931 | if (!num_routes) { | |
f110bfc7 | 3932 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3933 | propname); |
3934 | return -EINVAL; | |
3935 | } | |
3936 | ||
e3b1e6a1 | 3937 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3938 | GFP_KERNEL); |
3939 | if (!routes) { | |
3940 | dev_err(card->dev, | |
f110bfc7 | 3941 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3942 | return -EINVAL; |
3943 | } | |
3944 | ||
3945 | for (i = 0; i < num_routes; i++) { | |
3946 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3947 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3948 | if (ret) { |
c871bd0b MB |
3949 | dev_err(card->dev, |
3950 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3951 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3952 | return -EINVAL; |
3953 | } | |
3954 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3955 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3956 | if (ret) { |
3957 | dev_err(card->dev, | |
c871bd0b MB |
3958 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3959 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3960 | return -EINVAL; |
3961 | } | |
3962 | } | |
3963 | ||
f23e860e NC |
3964 | card->num_of_dapm_routes = num_routes; |
3965 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
3966 | |
3967 | return 0; | |
3968 | } | |
2bc644af | 3969 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); |
a4a54dd5 | 3970 | |
a7930ed4 | 3971 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3972 | const char *prefix, |
3973 | struct device_node **bitclkmaster, | |
3974 | struct device_node **framemaster) | |
a7930ed4 KM |
3975 | { |
3976 | int ret, i; | |
3977 | char prop[128]; | |
3978 | unsigned int format = 0; | |
3979 | int bit, frame; | |
3980 | const char *str; | |
3981 | struct { | |
3982 | char *name; | |
3983 | unsigned int val; | |
3984 | } of_fmt_table[] = { | |
3985 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3986 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3987 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3988 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3989 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3990 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3991 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3992 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3993 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3994 | }; |
3995 | ||
3996 | if (!prefix) | |
3997 | prefix = ""; | |
3998 | ||
3999 | /* | |
5711c979 KM |
4000 | * check "dai-format = xxx" |
4001 | * or "[prefix]format = xxx" | |
a7930ed4 KM |
4002 | * SND_SOC_DAIFMT_FORMAT_MASK area |
4003 | */ | |
5711c979 KM |
4004 | ret = of_property_read_string(np, "dai-format", &str); |
4005 | if (ret < 0) { | |
4006 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
4007 | ret = of_property_read_string(np, prop, &str); | |
4008 | } | |
a7930ed4 KM |
4009 | if (ret == 0) { |
4010 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
4011 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
4012 | format |= of_fmt_table[i].val; | |
4013 | break; | |
4014 | } | |
4015 | } | |
4016 | } | |
4017 | ||
4018 | /* | |
8c2d6a9f | 4019 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
4020 | * SND_SOC_DAIFMT_CLOCK_MASK area |
4021 | */ | |
8c2d6a9f | 4022 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
51930295 | 4023 | if (of_property_read_bool(np, prop)) |
8c2d6a9f KM |
4024 | format |= SND_SOC_DAIFMT_CONT; |
4025 | else | |
4026 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
4027 | |
4028 | /* | |
4029 | * check "[prefix]bitclock-inversion" | |
4030 | * check "[prefix]frame-inversion" | |
4031 | * SND_SOC_DAIFMT_INV_MASK area | |
4032 | */ | |
4033 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
4034 | bit = !!of_get_property(np, prop, NULL); | |
4035 | ||
4036 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
4037 | frame = !!of_get_property(np, prop, NULL); | |
4038 | ||
4039 | switch ((bit << 4) + frame) { | |
4040 | case 0x11: | |
4041 | format |= SND_SOC_DAIFMT_IB_IF; | |
4042 | break; | |
4043 | case 0x10: | |
4044 | format |= SND_SOC_DAIFMT_IB_NF; | |
4045 | break; | |
4046 | case 0x01: | |
4047 | format |= SND_SOC_DAIFMT_NB_IF; | |
4048 | break; | |
4049 | default: | |
4050 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
4051 | break; | |
4052 | } | |
4053 | ||
4054 | /* | |
4055 | * check "[prefix]bitclock-master" | |
4056 | * check "[prefix]frame-master" | |
4057 | * SND_SOC_DAIFMT_MASTER_MASK area | |
4058 | */ | |
4059 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
4060 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
4061 | if (bit && bitclkmaster) |
4062 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
4063 | |
4064 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
4065 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
4066 | if (frame && framemaster) |
4067 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
4068 | |
4069 | switch ((bit << 4) + frame) { | |
4070 | case 0x11: | |
4071 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
4072 | break; | |
4073 | case 0x10: | |
4074 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
4075 | break; | |
4076 | case 0x01: | |
4077 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
4078 | break; | |
4079 | default: | |
4080 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
4081 | break; | |
4082 | } | |
4083 | ||
4084 | return format; | |
4085 | } | |
4086 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
4087 | ||
a180e8b9 KM |
4088 | int snd_soc_get_dai_id(struct device_node *ep) |
4089 | { | |
4090 | struct snd_soc_component *pos; | |
4091 | struct device_node *node; | |
4092 | int ret; | |
4093 | ||
4094 | node = of_graph_get_port_parent(ep); | |
4095 | ||
4096 | /* | |
4097 | * For example HDMI case, HDMI has video/sound port, | |
4098 | * but ALSA SoC needs sound port number only. | |
4099 | * Thus counting HDMI DT port/endpoint doesn't work. | |
4100 | * Then, it should have .of_xlate_dai_id | |
4101 | */ | |
4102 | ret = -ENOTSUPP; | |
4103 | mutex_lock(&client_mutex); | |
4104 | list_for_each_entry(pos, &component_list, list) { | |
4105 | struct device_node *component_of_node = pos->dev->of_node; | |
4106 | ||
4107 | if (!component_of_node && pos->dev->parent) | |
4108 | component_of_node = pos->dev->parent->of_node; | |
4109 | ||
4110 | if (component_of_node != node) | |
4111 | continue; | |
4112 | ||
4113 | if (pos->driver->of_xlate_dai_id) | |
4114 | ret = pos->driver->of_xlate_dai_id(pos, ep); | |
4115 | ||
4116 | break; | |
4117 | } | |
4118 | mutex_unlock(&client_mutex); | |
4119 | ||
4120 | return ret; | |
4121 | } | |
4122 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_id); | |
4123 | ||
1ad8ec53 | 4124 | int snd_soc_get_dai_name(struct of_phandle_args *args, |
93b0f3ee | 4125 | const char **dai_name) |
cb470087 KM |
4126 | { |
4127 | struct snd_soc_component *pos; | |
3e0aa8d8 | 4128 | struct device_node *component_of_node; |
93b0f3ee | 4129 | int ret = -EPROBE_DEFER; |
cb470087 KM |
4130 | |
4131 | mutex_lock(&client_mutex); | |
4132 | list_for_each_entry(pos, &component_list, list) { | |
3e0aa8d8 JS |
4133 | component_of_node = pos->dev->of_node; |
4134 | if (!component_of_node && pos->dev->parent) | |
4135 | component_of_node = pos->dev->parent->of_node; | |
4136 | ||
4137 | if (component_of_node != args->np) | |
cb470087 KM |
4138 | continue; |
4139 | ||
6833c452 | 4140 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
4141 | ret = pos->driver->of_xlate_dai_name(pos, |
4142 | args, | |
4143 | dai_name); | |
6833c452 KM |
4144 | } else { |
4145 | int id = -1; | |
4146 | ||
93b0f3ee | 4147 | switch (args->args_count) { |
6833c452 KM |
4148 | case 0: |
4149 | id = 0; /* same as dai_drv[0] */ | |
4150 | break; | |
4151 | case 1: | |
93b0f3ee | 4152 | id = args->args[0]; |
6833c452 KM |
4153 | break; |
4154 | default: | |
4155 | /* not supported */ | |
4156 | break; | |
4157 | } | |
4158 | ||
4159 | if (id < 0 || id >= pos->num_dai) { | |
4160 | ret = -EINVAL; | |
3dcba280 | 4161 | continue; |
6833c452 | 4162 | } |
e41975ed XL |
4163 | |
4164 | ret = 0; | |
4165 | ||
4166 | *dai_name = pos->dai_drv[id].name; | |
4167 | if (!*dai_name) | |
4168 | *dai_name = pos->name; | |
cb470087 KM |
4169 | } |
4170 | ||
cb470087 KM |
4171 | break; |
4172 | } | |
4173 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
4174 | return ret; |
4175 | } | |
1ad8ec53 | 4176 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); |
93b0f3ee JFM |
4177 | |
4178 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
4179 | const char **dai_name) | |
4180 | { | |
4181 | struct of_phandle_args args; | |
4182 | int ret; | |
4183 | ||
4184 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
4185 | "#sound-dai-cells", 0, &args); | |
4186 | if (ret) | |
4187 | return ret; | |
4188 | ||
4189 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
4190 | |
4191 | of_node_put(args.np); | |
4192 | ||
4193 | return ret; | |
4194 | } | |
4195 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
4196 | ||
93b0f3ee JFM |
4197 | /* |
4198 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
4199 | * @dev: Card device | |
4200 | * @of_node: Device node | |
4201 | * @dai_link: DAI link | |
4202 | * | |
4203 | * Builds an array of CODEC DAI components from the DAI link property | |
4204 | * 'sound-dai'. | |
4205 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
4206 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
4207 | * | |
4208 | * Returns 0 for success | |
4209 | */ | |
4210 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
4211 | struct device_node *of_node, | |
4212 | struct snd_soc_dai_link *dai_link) | |
4213 | { | |
4214 | struct of_phandle_args args; | |
4215 | struct snd_soc_dai_link_component *component; | |
4216 | char *name; | |
4217 | int index, num_codecs, ret; | |
4218 | ||
4219 | /* Count the number of CODECs */ | |
4220 | name = "sound-dai"; | |
4221 | num_codecs = of_count_phandle_with_args(of_node, name, | |
4222 | "#sound-dai-cells"); | |
4223 | if (num_codecs <= 0) { | |
4224 | if (num_codecs == -ENOENT) | |
4225 | dev_err(dev, "No 'sound-dai' property\n"); | |
4226 | else | |
4227 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
4228 | return num_codecs; | |
4229 | } | |
4230 | component = devm_kzalloc(dev, | |
4231 | sizeof *component * num_codecs, | |
4232 | GFP_KERNEL); | |
4233 | if (!component) | |
4234 | return -ENOMEM; | |
4235 | dai_link->codecs = component; | |
4236 | dai_link->num_codecs = num_codecs; | |
4237 | ||
4238 | /* Parse the list */ | |
4239 | for (index = 0, component = dai_link->codecs; | |
4240 | index < dai_link->num_codecs; | |
4241 | index++, component++) { | |
4242 | ret = of_parse_phandle_with_args(of_node, name, | |
4243 | "#sound-dai-cells", | |
4244 | index, &args); | |
4245 | if (ret) | |
4246 | goto err; | |
4247 | component->of_node = args.np; | |
4248 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
4249 | if (ret < 0) | |
4250 | goto err; | |
4251 | } | |
4252 | return 0; | |
4253 | err: | |
4254 | for (index = 0, component = dai_link->codecs; | |
4255 | index < dai_link->num_codecs; | |
4256 | index++, component++) { | |
4257 | if (!component->of_node) | |
4258 | break; | |
4259 | of_node_put(component->of_node); | |
4260 | component->of_node = NULL; | |
4261 | } | |
4262 | dai_link->codecs = NULL; | |
4263 | dai_link->num_codecs = 0; | |
4264 | return ret; | |
4265 | } | |
4266 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
4267 | ||
c9b3a40f | 4268 | static int __init snd_soc_init(void) |
db2a4165 | 4269 | { |
6553bf06 | 4270 | snd_soc_debugfs_init(); |
fb257897 MB |
4271 | snd_soc_util_init(); |
4272 | ||
db2a4165 FM |
4273 | return platform_driver_register(&soc_driver); |
4274 | } | |
4abe8e16 | 4275 | module_init(snd_soc_init); |
db2a4165 | 4276 | |
7d8c16a6 | 4277 | static void __exit snd_soc_exit(void) |
db2a4165 | 4278 | { |
fb257897 | 4279 | snd_soc_util_exit(); |
6553bf06 | 4280 | snd_soc_debugfs_exit(); |
fb257897 | 4281 | |
3ff3f64b | 4282 | platform_driver_unregister(&soc_driver); |
db2a4165 | 4283 | } |
db2a4165 FM |
4284 | module_exit(snd_soc_exit); |
4285 | ||
4286 | /* Module information */ | |
d331124d | 4287 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
4288 | MODULE_DESCRIPTION("ALSA SoC Core"); |
4289 | MODULE_LICENSE("GPL"); | |
8b45a209 | 4290 | MODULE_ALIAS("platform:soc-audio"); |