Commit | Line | Data |
---|---|---|
db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
741a509f | 33 | #include <linux/pinctrl/consumer.h> |
f0e8ed85 | 34 | #include <linux/ctype.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
bec4fa05 | 36 | #include <linux/of.h> |
db2a4165 | 37 | #include <sound/core.h> |
3028eb8c | 38 | #include <sound/jack.h> |
db2a4165 FM |
39 | #include <sound/pcm.h> |
40 | #include <sound/pcm_params.h> | |
41 | #include <sound/soc.h> | |
01d7584c | 42 | #include <sound/soc-dpcm.h> |
db2a4165 FM |
43 | #include <sound/initval.h> |
44 | ||
a8b1d34f MB |
45 | #define CREATE_TRACE_POINTS |
46 | #include <trace/events/asoc.h> | |
47 | ||
f0fba2ad LG |
48 | #define NAME_SIZE 32 |
49 | ||
384c89e2 | 50 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
51 | struct dentry *snd_soc_debugfs_root; |
52 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
53 | #endif |
54 | ||
c5af3a2e | 55 | static DEFINE_MUTEX(client_mutex); |
12a48a8c | 56 | static LIST_HEAD(platform_list); |
0d0cf00a | 57 | static LIST_HEAD(codec_list); |
030e79f6 | 58 | static LIST_HEAD(component_list); |
c5af3a2e | 59 | |
db2a4165 FM |
60 | /* |
61 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
62 | * It can be used to eliminate pops between different playback streams, e.g. | |
63 | * between two audio tracks. | |
64 | */ | |
65 | static int pmdown_time = 5000; | |
66 | module_param(pmdown_time, int, 0); | |
67 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
68 | ||
2bc9a81e DP |
69 | /* returns the minimum number of bytes needed to represent |
70 | * a particular given value */ | |
71 | static int min_bytes_needed(unsigned long val) | |
72 | { | |
73 | int c = 0; | |
74 | int i; | |
75 | ||
76 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
77 | if (val & (1UL << i)) | |
78 | break; | |
79 | c = (sizeof val * 8) - c; | |
80 | if (!c || (c % 8)) | |
81 | c = (c + 8) / 8; | |
82 | else | |
83 | c /= 8; | |
84 | return c; | |
85 | } | |
86 | ||
13fd179f DP |
87 | /* fill buf which is 'len' bytes with a formatted |
88 | * string of the form 'reg: value\n' */ | |
89 | static int format_register_str(struct snd_soc_codec *codec, | |
90 | unsigned int reg, char *buf, size_t len) | |
91 | { | |
00b317a4 SW |
92 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
93 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
94 | int ret; |
95 | char tmpbuf[len + 1]; | |
96 | char regbuf[regsize + 1]; | |
97 | ||
98 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
99 | * try to abuse this function */ | |
100 | WARN_ON(len > 63); | |
101 | ||
102 | /* +2 for ': ' and + 1 for '\n' */ | |
103 | if (wordsize + regsize + 2 + 1 != len) | |
104 | return -EINVAL; | |
105 | ||
25032c11 | 106 | ret = snd_soc_read(codec, reg); |
13fd179f DP |
107 | if (ret < 0) { |
108 | memset(regbuf, 'X', regsize); | |
109 | regbuf[regsize] = '\0'; | |
110 | } else { | |
111 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
112 | } | |
113 | ||
114 | /* prepare the buffer */ | |
115 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
116 | /* copy it back to the caller without the '\0' */ | |
117 | memcpy(buf, tmpbuf, len); | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
2624d5fa | 122 | /* codec register dump */ |
13fd179f DP |
123 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
124 | size_t count, loff_t pos) | |
2624d5fa | 125 | { |
13fd179f | 126 | int i, step = 1; |
2bc9a81e | 127 | int wordsize, regsize; |
13fd179f DP |
128 | int len; |
129 | size_t total = 0; | |
130 | loff_t p = 0; | |
2bc9a81e | 131 | |
00b317a4 SW |
132 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
133 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 134 | |
13fd179f DP |
135 | len = wordsize + regsize + 2 + 1; |
136 | ||
f0fba2ad | 137 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
138 | return 0; |
139 | ||
f0fba2ad LG |
140 | if (codec->driver->reg_cache_step) |
141 | step = codec->driver->reg_cache_step; | |
2624d5fa | 142 | |
f0fba2ad | 143 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
20a0ec27 LPC |
144 | /* only support larger than PAGE_SIZE bytes debugfs |
145 | * entries for the default case */ | |
146 | if (p >= pos) { | |
147 | if (total + len >= count - 1) | |
148 | break; | |
149 | format_register_str(codec, i, buf + total, len); | |
150 | total += len; | |
5164d74d | 151 | } |
20a0ec27 | 152 | p += len; |
2624d5fa MB |
153 | } |
154 | ||
13fd179f | 155 | total = min(total, count - 1); |
2624d5fa | 156 | |
13fd179f | 157 | return total; |
2624d5fa | 158 | } |
13fd179f | 159 | |
2624d5fa MB |
160 | static ssize_t codec_reg_show(struct device *dev, |
161 | struct device_attribute *attr, char *buf) | |
162 | { | |
36ae1a96 | 163 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 164 | |
13fd179f | 165 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
166 | } |
167 | ||
168 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
169 | ||
dbe21408 MB |
170 | static ssize_t pmdown_time_show(struct device *dev, |
171 | struct device_attribute *attr, char *buf) | |
172 | { | |
36ae1a96 | 173 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 174 | |
f0fba2ad | 175 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
176 | } |
177 | ||
178 | static ssize_t pmdown_time_set(struct device *dev, | |
179 | struct device_attribute *attr, | |
180 | const char *buf, size_t count) | |
181 | { | |
36ae1a96 | 182 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 183 | int ret; |
dbe21408 | 184 | |
b785a492 | 185 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
186 | if (ret) |
187 | return ret; | |
dbe21408 MB |
188 | |
189 | return count; | |
190 | } | |
191 | ||
192 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
193 | ||
d29697dc TI |
194 | static struct attribute *soc_dev_attrs[] = { |
195 | &dev_attr_codec_reg.attr, | |
196 | &dev_attr_pmdown_time.attr, | |
197 | NULL | |
198 | }; | |
199 | ||
200 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
201 | struct attribute *attr, int idx) | |
202 | { | |
203 | struct device *dev = kobj_to_dev(kobj); | |
204 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
205 | ||
206 | if (attr == &dev_attr_pmdown_time.attr) | |
207 | return attr->mode; /* always visible */ | |
208 | return rtd->codec ? attr->mode : 0; /* enabled only with codec */ | |
209 | } | |
210 | ||
211 | static const struct attribute_group soc_dapm_dev_group = { | |
212 | .attrs = soc_dapm_dev_attrs, | |
213 | .is_visible = soc_dev_attr_is_visible, | |
214 | }; | |
215 | ||
216 | static const struct attribute_group soc_dev_roup = { | |
217 | .attrs = soc_dev_attrs, | |
218 | .is_visible = soc_dev_attr_is_visible, | |
219 | }; | |
220 | ||
221 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
222 | &soc_dapm_dev_group, | |
223 | &soc_dev_roup, | |
224 | NULL | |
225 | }; | |
226 | ||
2624d5fa | 227 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 228 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 229 | size_t count, loff_t *ppos) |
2624d5fa MB |
230 | { |
231 | ssize_t ret; | |
232 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
233 | char *buf; |
234 | ||
235 | if (*ppos < 0 || !count) | |
236 | return -EINVAL; | |
237 | ||
238 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
239 | if (!buf) |
240 | return -ENOMEM; | |
13fd179f DP |
241 | |
242 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
243 | if (ret >= 0) { | |
244 | if (copy_to_user(user_buf, buf, ret)) { | |
245 | kfree(buf); | |
246 | return -EFAULT; | |
247 | } | |
248 | *ppos += ret; | |
249 | } | |
250 | ||
2624d5fa MB |
251 | kfree(buf); |
252 | return ret; | |
253 | } | |
254 | ||
255 | static ssize_t codec_reg_write_file(struct file *file, | |
256 | const char __user *user_buf, size_t count, loff_t *ppos) | |
257 | { | |
258 | char buf[32]; | |
34e268d8 | 259 | size_t buf_size; |
2624d5fa MB |
260 | char *start = buf; |
261 | unsigned long reg, value; | |
2624d5fa | 262 | struct snd_soc_codec *codec = file->private_data; |
b785a492 | 263 | int ret; |
2624d5fa MB |
264 | |
265 | buf_size = min(count, (sizeof(buf)-1)); | |
266 | if (copy_from_user(buf, user_buf, buf_size)) | |
267 | return -EFAULT; | |
268 | buf[buf_size] = 0; | |
2624d5fa MB |
269 | |
270 | while (*start == ' ') | |
271 | start++; | |
272 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
273 | while (*start == ' ') |
274 | start++; | |
b785a492 JH |
275 | ret = kstrtoul(start, 16, &value); |
276 | if (ret) | |
277 | return ret; | |
0d51a9cb MB |
278 | |
279 | /* Userspace has been fiddling around behind the kernel's back */ | |
373d4d09 | 280 | add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE); |
0d51a9cb | 281 | |
e4f078d8 | 282 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
283 | return buf_size; |
284 | } | |
285 | ||
286 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 287 | .open = simple_open, |
2624d5fa MB |
288 | .read = codec_reg_read_file, |
289 | .write = codec_reg_write_file, | |
6038f373 | 290 | .llseek = default_llseek, |
2624d5fa MB |
291 | }; |
292 | ||
81c7cfd1 | 293 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 294 | { |
6553bf06 LPC |
295 | if (!component->card->debugfs_card_root) |
296 | return; | |
297 | ||
81c7cfd1 LPC |
298 | if (component->debugfs_prefix) { |
299 | char *name; | |
e73f3de5 | 300 | |
81c7cfd1 LPC |
301 | name = kasprintf(GFP_KERNEL, "%s:%s", |
302 | component->debugfs_prefix, component->name); | |
303 | if (name) { | |
304 | component->debugfs_root = debugfs_create_dir(name, | |
305 | component->card->debugfs_card_root); | |
306 | kfree(name); | |
307 | } | |
308 | } else { | |
309 | component->debugfs_root = debugfs_create_dir(component->name, | |
310 | component->card->debugfs_card_root); | |
311 | } | |
e73f3de5 | 312 | |
81c7cfd1 LPC |
313 | if (!component->debugfs_root) { |
314 | dev_warn(component->dev, | |
315 | "ASoC: Failed to create component debugfs directory\n"); | |
316 | return; | |
317 | } | |
e73f3de5 | 318 | |
81c7cfd1 LPC |
319 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
320 | component->debugfs_root); | |
e73f3de5 | 321 | |
81c7cfd1 LPC |
322 | if (component->init_debugfs) |
323 | component->init_debugfs(component); | |
e73f3de5 RK |
324 | } |
325 | ||
81c7cfd1 | 326 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 327 | { |
81c7cfd1 LPC |
328 | debugfs_remove_recursive(component->debugfs_root); |
329 | } | |
d6ce4cf3 | 330 | |
81c7cfd1 LPC |
331 | static void soc_init_codec_debugfs(struct snd_soc_component *component) |
332 | { | |
333 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2624d5fa MB |
334 | |
335 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
81c7cfd1 | 336 | codec->component.debugfs_root, |
2624d5fa MB |
337 | codec, &codec_reg_fops); |
338 | if (!codec->debugfs_reg) | |
10e8aa9a MM |
339 | dev_warn(codec->dev, |
340 | "ASoC: Failed to create codec register debugfs file\n"); | |
731f1ab2 SG |
341 | } |
342 | ||
c3c5a19a MB |
343 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
344 | size_t count, loff_t *ppos) | |
345 | { | |
346 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 347 | ssize_t len, ret = 0; |
c3c5a19a MB |
348 | struct snd_soc_codec *codec; |
349 | ||
350 | if (!buf) | |
351 | return -ENOMEM; | |
352 | ||
34e81ab4 LPC |
353 | mutex_lock(&client_mutex); |
354 | ||
2b194f9d MB |
355 | list_for_each_entry(codec, &codec_list, list) { |
356 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 357 | codec->component.name); |
2b194f9d MB |
358 | if (len >= 0) |
359 | ret += len; | |
360 | if (ret > PAGE_SIZE) { | |
361 | ret = PAGE_SIZE; | |
362 | break; | |
363 | } | |
364 | } | |
c3c5a19a | 365 | |
34e81ab4 LPC |
366 | mutex_unlock(&client_mutex); |
367 | ||
c3c5a19a MB |
368 | if (ret >= 0) |
369 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
370 | ||
371 | kfree(buf); | |
372 | ||
373 | return ret; | |
374 | } | |
375 | ||
376 | static const struct file_operations codec_list_fops = { | |
377 | .read = codec_list_read_file, | |
378 | .llseek = default_llseek,/* read accesses f_pos */ | |
379 | }; | |
380 | ||
f3208780 MB |
381 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
382 | size_t count, loff_t *ppos) | |
383 | { | |
384 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 385 | ssize_t len, ret = 0; |
1438c2f6 | 386 | struct snd_soc_component *component; |
f3208780 MB |
387 | struct snd_soc_dai *dai; |
388 | ||
389 | if (!buf) | |
390 | return -ENOMEM; | |
391 | ||
34e81ab4 LPC |
392 | mutex_lock(&client_mutex); |
393 | ||
1438c2f6 LPC |
394 | list_for_each_entry(component, &component_list, list) { |
395 | list_for_each_entry(dai, &component->dai_list, list) { | |
396 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
397 | dai->name); | |
398 | if (len >= 0) | |
399 | ret += len; | |
400 | if (ret > PAGE_SIZE) { | |
401 | ret = PAGE_SIZE; | |
402 | break; | |
403 | } | |
2b194f9d MB |
404 | } |
405 | } | |
f3208780 | 406 | |
34e81ab4 LPC |
407 | mutex_unlock(&client_mutex); |
408 | ||
2b194f9d | 409 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
410 | |
411 | kfree(buf); | |
412 | ||
413 | return ret; | |
414 | } | |
415 | ||
416 | static const struct file_operations dai_list_fops = { | |
417 | .read = dai_list_read_file, | |
418 | .llseek = default_llseek,/* read accesses f_pos */ | |
419 | }; | |
420 | ||
19c7ac27 MB |
421 | static ssize_t platform_list_read_file(struct file *file, |
422 | char __user *user_buf, | |
423 | size_t count, loff_t *ppos) | |
424 | { | |
425 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 426 | ssize_t len, ret = 0; |
19c7ac27 MB |
427 | struct snd_soc_platform *platform; |
428 | ||
429 | if (!buf) | |
430 | return -ENOMEM; | |
431 | ||
34e81ab4 LPC |
432 | mutex_lock(&client_mutex); |
433 | ||
2b194f9d MB |
434 | list_for_each_entry(platform, &platform_list, list) { |
435 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 436 | platform->component.name); |
2b194f9d MB |
437 | if (len >= 0) |
438 | ret += len; | |
439 | if (ret > PAGE_SIZE) { | |
440 | ret = PAGE_SIZE; | |
441 | break; | |
442 | } | |
443 | } | |
19c7ac27 | 444 | |
34e81ab4 LPC |
445 | mutex_unlock(&client_mutex); |
446 | ||
2b194f9d | 447 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
448 | |
449 | kfree(buf); | |
450 | ||
451 | return ret; | |
452 | } | |
453 | ||
454 | static const struct file_operations platform_list_fops = { | |
455 | .read = platform_list_read_file, | |
456 | .llseek = default_llseek,/* read accesses f_pos */ | |
457 | }; | |
458 | ||
a6052154 JN |
459 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
460 | { | |
6553bf06 LPC |
461 | if (!snd_soc_debugfs_root) |
462 | return; | |
463 | ||
a6052154 | 464 | card->debugfs_card_root = debugfs_create_dir(card->name, |
8a9dab1a | 465 | snd_soc_debugfs_root); |
3a45b867 | 466 | if (!card->debugfs_card_root) { |
a6052154 | 467 | dev_warn(card->dev, |
7c08be84 | 468 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
469 | return; |
470 | } | |
471 | ||
472 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
473 | card->debugfs_card_root, | |
474 | &card->pop_time); | |
475 | if (!card->debugfs_pop_time) | |
476 | dev_warn(card->dev, | |
f110bfc7 | 477 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
478 | } |
479 | ||
480 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
481 | { | |
482 | debugfs_remove_recursive(card->debugfs_card_root); | |
483 | } | |
484 | ||
6553bf06 LPC |
485 | |
486 | static void snd_soc_debugfs_init(void) | |
487 | { | |
488 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); | |
489 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
490 | pr_warn("ASoC: Failed to create debugfs directory\n"); | |
491 | snd_soc_debugfs_root = NULL; | |
492 | return; | |
493 | } | |
494 | ||
495 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, | |
496 | &codec_list_fops)) | |
497 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
498 | ||
499 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, | |
500 | &dai_list_fops)) | |
501 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
502 | ||
503 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, | |
504 | &platform_list_fops)) | |
505 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
506 | } | |
507 | ||
508 | static void snd_soc_debugfs_exit(void) | |
509 | { | |
510 | debugfs_remove_recursive(snd_soc_debugfs_root); | |
511 | } | |
512 | ||
2624d5fa MB |
513 | #else |
514 | ||
81c7cfd1 | 515 | #define soc_init_codec_debugfs NULL |
b95fccbc | 516 | |
81c7cfd1 LPC |
517 | static inline void soc_init_component_debugfs( |
518 | struct snd_soc_component *component) | |
731f1ab2 SG |
519 | { |
520 | } | |
521 | ||
81c7cfd1 LPC |
522 | static inline void soc_cleanup_component_debugfs( |
523 | struct snd_soc_component *component) | |
731f1ab2 SG |
524 | { |
525 | } | |
526 | ||
b95fccbc AL |
527 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
528 | { | |
529 | } | |
530 | ||
531 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
532 | { | |
533 | } | |
6553bf06 LPC |
534 | |
535 | static inline void snd_soc_debugfs_init(void) | |
536 | { | |
537 | } | |
538 | ||
539 | static inline void snd_soc_debugfs_exit(void) | |
540 | { | |
541 | } | |
542 | ||
2624d5fa MB |
543 | #endif |
544 | ||
47c88fff LG |
545 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
546 | const char *dai_link, int stream) | |
547 | { | |
548 | int i; | |
549 | ||
550 | for (i = 0; i < card->num_links; i++) { | |
551 | if (card->rtd[i].dai_link->no_pcm && | |
552 | !strcmp(card->rtd[i].dai_link->name, dai_link)) | |
553 | return card->rtd[i].pcm->streams[stream].substream; | |
554 | } | |
f110bfc7 | 555 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
556 | return NULL; |
557 | } | |
558 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
559 | ||
560 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, | |
561 | const char *dai_link) | |
562 | { | |
563 | int i; | |
564 | ||
565 | for (i = 0; i < card->num_links; i++) { | |
566 | if (!strcmp(card->rtd[i].dai_link->name, dai_link)) | |
567 | return &card->rtd[i]; | |
568 | } | |
f110bfc7 | 569 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
570 | return NULL; |
571 | } | |
572 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
573 | ||
9d58a077 RF |
574 | static void codec2codec_close_delayed_work(struct work_struct *work) |
575 | { | |
576 | /* Currently nothing to do for c2c links | |
577 | * Since c2c links are internal nodes in the DAPM graph and | |
578 | * don't interface with the outside world or application layer | |
579 | * we don't have to do any special handling on close. | |
580 | */ | |
581 | } | |
582 | ||
6f8ab4ac | 583 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 584 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 585 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 586 | { |
6f8ab4ac | 587 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 588 | struct snd_soc_codec *codec; |
88bd870f | 589 | int i, j; |
db2a4165 | 590 | |
c5599b87 LPC |
591 | /* If the card is not initialized yet there is nothing to do */ |
592 | if (!card->instantiated) | |
e3509ff0 DM |
593 | return 0; |
594 | ||
6ed25978 AG |
595 | /* Due to the resume being scheduled into a workqueue we could |
596 | * suspend before that's finished - wait for it to complete. | |
597 | */ | |
f0fba2ad LG |
598 | snd_power_lock(card->snd_card); |
599 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
600 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
601 | |
602 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 603 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 604 | |
a00f90f9 | 605 | /* mute any active DACs */ |
f0fba2ad | 606 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 607 | |
f0fba2ad | 608 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
609 | continue; |
610 | ||
88bd870f BC |
611 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
612 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
613 | struct snd_soc_dai_driver *drv = dai->driver; | |
614 | ||
615 | if (drv->ops->digital_mute && dai->playback_active) | |
616 | drv->ops->digital_mute(dai, 1); | |
617 | } | |
db2a4165 FM |
618 | } |
619 | ||
4ccab3e7 | 620 | /* suspend all pcms */ |
f0fba2ad LG |
621 | for (i = 0; i < card->num_rtd; i++) { |
622 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
623 | continue; |
624 | ||
f0fba2ad | 625 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 626 | } |
4ccab3e7 | 627 | |
87506549 | 628 | if (card->suspend_pre) |
70b2ac12 | 629 | card->suspend_pre(card); |
db2a4165 | 630 | |
f0fba2ad LG |
631 | for (i = 0; i < card->num_rtd; i++) { |
632 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 633 | |
f0fba2ad | 634 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
635 | continue; |
636 | ||
bc263214 | 637 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 638 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
639 | } |
640 | ||
37660b6d LPC |
641 | /* close any waiting streams */ |
642 | for (i = 0; i < card->num_rtd; i++) | |
43829731 | 643 | flush_delayed_work(&card->rtd[i].delayed_work); |
db2a4165 | 644 | |
f0fba2ad | 645 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 646 | |
f0fba2ad | 647 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
648 | continue; |
649 | ||
7bd3a6f3 MB |
650 | snd_soc_dapm_stream_event(&card->rtd[i], |
651 | SNDRV_PCM_STREAM_PLAYBACK, | |
7bd3a6f3 | 652 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 653 | |
7bd3a6f3 MB |
654 | snd_soc_dapm_stream_event(&card->rtd[i], |
655 | SNDRV_PCM_STREAM_CAPTURE, | |
7bd3a6f3 | 656 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
657 | } |
658 | ||
8be4da29 LPC |
659 | /* Recheck all endpoints too, their state is affected by suspend */ |
660 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
661 | snd_soc_dapm_sync(&card->dapm); |
662 | ||
f0fba2ad | 663 | /* suspend all CODECs */ |
2eea392d | 664 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
665 | /* If there are paths active then the CODEC will be held with |
666 | * bias _ON and should not be suspended. */ | |
a8093297 | 667 | if (!codec->suspended) { |
ce6120cc | 668 | switch (codec->dapm.bias_level) { |
f0fba2ad | 669 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
670 | /* |
671 | * If the CODEC is capable of idle | |
672 | * bias off then being in STANDBY | |
673 | * means it's doing something, | |
674 | * otherwise fall through. | |
675 | */ | |
676 | if (codec->dapm.idle_bias_off) { | |
677 | dev_dbg(codec->dev, | |
10e8aa9a | 678 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
679 | break; |
680 | } | |
a8093297 | 681 | |
f0fba2ad | 682 | case SND_SOC_BIAS_OFF: |
a8093297 LPC |
683 | if (codec->driver->suspend) |
684 | codec->driver->suspend(codec); | |
f0fba2ad | 685 | codec->suspended = 1; |
e2c330b9 LPC |
686 | if (codec->component.regmap) |
687 | regcache_mark_dirty(codec->component.regmap); | |
988e8cc4 NC |
688 | /* deactivate pins to sleep state */ |
689 | pinctrl_pm_select_sleep_state(codec->dev); | |
f0fba2ad LG |
690 | break; |
691 | default: | |
10e8aa9a MM |
692 | dev_dbg(codec->dev, |
693 | "ASoC: CODEC is on over suspend\n"); | |
f0fba2ad LG |
694 | break; |
695 | } | |
1547aba9 MB |
696 | } |
697 | } | |
db2a4165 | 698 | |
f0fba2ad LG |
699 | for (i = 0; i < card->num_rtd; i++) { |
700 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 701 | |
f0fba2ad | 702 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
703 | continue; |
704 | ||
bc263214 | 705 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 706 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
707 | |
708 | /* deactivate pins to sleep state */ | |
709 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
710 | } |
711 | ||
87506549 | 712 | if (card->suspend_post) |
70b2ac12 | 713 | card->suspend_post(card); |
db2a4165 FM |
714 | |
715 | return 0; | |
716 | } | |
6f8ab4ac | 717 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 718 | |
6ed25978 AG |
719 | /* deferred resume work, so resume can complete before we finished |
720 | * setting our codec back up, which can be very slow on I2C | |
721 | */ | |
722 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 723 | { |
f0fba2ad LG |
724 | struct snd_soc_card *card = |
725 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 726 | struct snd_soc_codec *codec; |
88bd870f | 727 | int i, j; |
db2a4165 | 728 | |
6ed25978 AG |
729 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
730 | * so userspace apps are blocked from touching us | |
731 | */ | |
732 | ||
f110bfc7 | 733 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 734 | |
9949788b | 735 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 736 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 737 | |
87506549 | 738 | if (card->resume_pre) |
70b2ac12 | 739 | card->resume_pre(card); |
db2a4165 | 740 | |
bc263214 | 741 | /* resume control bus DAIs */ |
f0fba2ad LG |
742 | for (i = 0; i < card->num_rtd; i++) { |
743 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 744 | |
f0fba2ad | 745 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
746 | continue; |
747 | ||
bc263214 | 748 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
749 | cpu_dai->driver->resume(cpu_dai); |
750 | } | |
751 | ||
2eea392d | 752 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
a8093297 | 753 | if (codec->suspended) { |
b8faaba4 LPC |
754 | if (codec->driver->resume) |
755 | codec->driver->resume(codec); | |
756 | codec->suspended = 0; | |
1547aba9 MB |
757 | } |
758 | } | |
db2a4165 | 759 | |
f0fba2ad | 760 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 761 | |
f0fba2ad | 762 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
763 | continue; |
764 | ||
7bd3a6f3 | 765 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 766 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 767 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 768 | |
7bd3a6f3 | 769 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 770 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 771 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
772 | } |
773 | ||
3ff3f64b | 774 | /* unmute any active DACs */ |
f0fba2ad | 775 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 776 | |
f0fba2ad | 777 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
778 | continue; |
779 | ||
88bd870f BC |
780 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
781 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
782 | struct snd_soc_dai_driver *drv = dai->driver; | |
783 | ||
784 | if (drv->ops->digital_mute && dai->playback_active) | |
785 | drv->ops->digital_mute(dai, 0); | |
786 | } | |
db2a4165 FM |
787 | } |
788 | ||
f0fba2ad LG |
789 | for (i = 0; i < card->num_rtd; i++) { |
790 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 791 | |
f0fba2ad | 792 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
793 | continue; |
794 | ||
bc263214 | 795 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 796 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
797 | } |
798 | ||
87506549 | 799 | if (card->resume_post) |
70b2ac12 | 800 | card->resume_post(card); |
db2a4165 | 801 | |
f110bfc7 | 802 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 AG |
803 | |
804 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 805 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
e2d32ff6 | 806 | |
8be4da29 LPC |
807 | /* Recheck all endpoints too, their state is affected by suspend */ |
808 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 809 | snd_soc_dapm_sync(&card->dapm); |
6ed25978 AG |
810 | } |
811 | ||
812 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 813 | int snd_soc_resume(struct device *dev) |
6ed25978 | 814 | { |
6f8ab4ac | 815 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 LPC |
816 | bool bus_control = false; |
817 | int i; | |
b9dd94a8 | 818 | |
c5599b87 LPC |
819 | /* If the card is not initialized yet there is nothing to do */ |
820 | if (!card->instantiated) | |
5ff1ddf2 EM |
821 | return 0; |
822 | ||
988e8cc4 NC |
823 | /* activate pins from sleep state */ |
824 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
825 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
826 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
827 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
828 | int j; | |
829 | ||
988e8cc4 NC |
830 | if (cpu_dai->active) |
831 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
832 | |
833 | for (j = 0; j < rtd->num_codecs; j++) { | |
834 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
835 | if (codec_dai->active) | |
836 | pinctrl_pm_select_default_state(codec_dai->dev); | |
837 | } | |
988e8cc4 NC |
838 | } |
839 | ||
bc263214 LPC |
840 | /* |
841 | * DAIs that also act as the control bus master might have other drivers | |
842 | * hanging off them so need to resume immediately. Other drivers don't | |
843 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
844 | * due to I/O costs and anti-pop so handle them out of line. |
845 | */ | |
f0fba2ad LG |
846 | for (i = 0; i < card->num_rtd; i++) { |
847 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
bc263214 | 848 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 849 | } |
bc263214 LPC |
850 | if (bus_control) { |
851 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
852 | soc_resume_deferred(&card->deferred_resume_work); |
853 | } else { | |
f110bfc7 | 854 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 855 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 856 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 857 | } |
6ed25978 | 858 | |
db2a4165 FM |
859 | return 0; |
860 | } | |
6f8ab4ac | 861 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 862 | #else |
6f8ab4ac MB |
863 | #define snd_soc_suspend NULL |
864 | #define snd_soc_resume NULL | |
db2a4165 FM |
865 | #endif |
866 | ||
85e7652d | 867 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
868 | }; |
869 | ||
65d9361f LPC |
870 | static struct snd_soc_component *soc_find_component( |
871 | const struct device_node *of_node, const char *name) | |
12023a9a | 872 | { |
65d9361f | 873 | struct snd_soc_component *component; |
12023a9a | 874 | |
34e81ab4 LPC |
875 | lockdep_assert_held(&client_mutex); |
876 | ||
65d9361f LPC |
877 | list_for_each_entry(component, &component_list, list) { |
878 | if (of_node) { | |
879 | if (component->dev->of_node == of_node) | |
880 | return component; | |
881 | } else if (strcmp(component->name, name) == 0) { | |
882 | return component; | |
12023a9a | 883 | } |
12023a9a MLC |
884 | } |
885 | ||
886 | return NULL; | |
887 | } | |
888 | ||
14621c7e LPC |
889 | static struct snd_soc_dai *snd_soc_find_dai( |
890 | const struct snd_soc_dai_link_component *dlc) | |
12023a9a | 891 | { |
14621c7e LPC |
892 | struct snd_soc_component *component; |
893 | struct snd_soc_dai *dai; | |
12023a9a | 894 | |
34e81ab4 LPC |
895 | lockdep_assert_held(&client_mutex); |
896 | ||
14621c7e LPC |
897 | /* Find CPU DAI from registered DAIs*/ |
898 | list_for_each_entry(component, &component_list, list) { | |
899 | if (dlc->of_node && component->dev->of_node != dlc->of_node) | |
900 | continue; | |
1ffae361 | 901 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
902 | continue; |
903 | list_for_each_entry(dai, &component->dai_list, list) { | |
904 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 905 | continue; |
12023a9a | 906 | |
14621c7e | 907 | return dai; |
12023a9a MLC |
908 | } |
909 | } | |
910 | ||
911 | return NULL; | |
912 | } | |
913 | ||
f0fba2ad | 914 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 915 | { |
f0fba2ad LG |
916 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
917 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
88bd870f | 918 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 919 | struct snd_soc_dai_link_component cpu_dai_component; |
88bd870f | 920 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
435c5e25 | 921 | struct snd_soc_platform *platform; |
848dd8be | 922 | const char *platform_name; |
88bd870f | 923 | int i; |
435c5e25 | 924 | |
f110bfc7 | 925 | dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); |
435c5e25 | 926 | |
14621c7e LPC |
927 | cpu_dai_component.name = dai_link->cpu_name; |
928 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
929 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
930 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 931 | if (!rtd->cpu_dai) { |
f110bfc7 | 932 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b MB |
933 | dai_link->cpu_dai_name); |
934 | return -EPROBE_DEFER; | |
f0fba2ad LG |
935 | } |
936 | ||
88bd870f | 937 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 938 | |
88bd870f BC |
939 | /* Find CODEC from registered CODECs */ |
940 | for (i = 0; i < rtd->num_codecs; i++) { | |
14621c7e | 941 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
942 | if (!codec_dais[i]) { |
943 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
944 | codecs[i].dai_name); | |
945 | return -EPROBE_DEFER; | |
946 | } | |
12023a9a MLC |
947 | } |
948 | ||
88bd870f BC |
949 | /* Single codec links expect codec and codec_dai in runtime data */ |
950 | rtd->codec_dai = codec_dais[0]; | |
951 | rtd->codec = rtd->codec_dai->codec; | |
952 | ||
848dd8be MB |
953 | /* if there's no platform we match on the empty platform */ |
954 | platform_name = dai_link->platform_name; | |
5a504963 | 955 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
956 | platform_name = "snd-soc-dummy"; |
957 | ||
b19e6e7b | 958 | /* find one from the set of registered platforms */ |
f0fba2ad | 959 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
960 | if (dai_link->platform_of_node) { |
961 | if (platform->dev->of_node != | |
962 | dai_link->platform_of_node) | |
963 | continue; | |
964 | } else { | |
f4333203 | 965 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
966 | continue; |
967 | } | |
2610ab77 SW |
968 | |
969 | rtd->platform = platform; | |
02a06d30 | 970 | } |
b19e6e7b | 971 | if (!rtd->platform) { |
f110bfc7 | 972 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 973 | dai_link->platform_name); |
b19e6e7b | 974 | return -EPROBE_DEFER; |
f0fba2ad | 975 | } |
b19e6e7b MB |
976 | |
977 | card->num_rtd++; | |
978 | ||
979 | return 0; | |
f0fba2ad LG |
980 | } |
981 | ||
f1d45cc3 | 982 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 983 | { |
70090bbb LPC |
984 | if (!component->probed) |
985 | return; | |
d12cd198 | 986 | |
f1d45cc3 LPC |
987 | /* This is a HACK and will be removed soon */ |
988 | if (component->codec) | |
989 | list_del(&component->codec->card_list); | |
589c3563 | 990 | |
f1d45cc3 LPC |
991 | if (component->remove) |
992 | component->remove(component); | |
589c3563 | 993 | |
f1d45cc3 | 994 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 995 | |
f1d45cc3 LPC |
996 | soc_cleanup_component_debugfs(component); |
997 | component->probed = 0; | |
998 | module_put(component->dev->driver->owner); | |
589c3563 JN |
999 | } |
1000 | ||
e60cd14f | 1001 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 1002 | { |
f0fba2ad LG |
1003 | int err; |
1004 | ||
e60cd14f LPC |
1005 | if (dai && dai->probed && |
1006 | dai->driver->remove_order == order) { | |
1007 | if (dai->driver->remove) { | |
1008 | err = dai->driver->remove(dai); | |
f0fba2ad | 1009 | if (err < 0) |
e60cd14f | 1010 | dev_err(dai->dev, |
f110bfc7 | 1011 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 1012 | dai->name, err); |
6b05eda6 | 1013 | } |
e60cd14f | 1014 | dai->probed = 0; |
f0fba2ad | 1015 | } |
b0aa88af MLC |
1016 | } |
1017 | ||
1018 | static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) | |
1019 | { | |
1020 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
e60cd14f | 1021 | int i; |
b0aa88af MLC |
1022 | |
1023 | /* unregister the rtd device */ | |
1024 | if (rtd->dev_registered) { | |
b0aa88af MLC |
1025 | device_unregister(rtd->dev); |
1026 | rtd->dev_registered = 0; | |
1027 | } | |
1028 | ||
1029 | /* remove the CODEC DAI */ | |
88bd870f | 1030 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 1031 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 1032 | |
e60cd14f | 1033 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 1034 | } |
db2a4165 | 1035 | |
62ae68fa SW |
1036 | static void soc_remove_link_components(struct snd_soc_card *card, int num, |
1037 | int order) | |
1038 | { | |
1039 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1040 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
62ae68fa | 1041 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1042 | struct snd_soc_component *component; |
88bd870f | 1043 | int i; |
62ae68fa SW |
1044 | |
1045 | /* remove the platform */ | |
70090bbb | 1046 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1047 | soc_remove_component(&platform->component); |
62ae68fa SW |
1048 | |
1049 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1050 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1051 | component = rtd->codec_dais[i]->component; |
70090bbb | 1052 | if (component->driver->remove_order == order) |
61aca564 | 1053 | soc_remove_component(component); |
62ae68fa SW |
1054 | } |
1055 | ||
1056 | /* remove any CPU-side CODEC */ | |
1057 | if (cpu_dai) { | |
70090bbb | 1058 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1059 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1060 | } |
1061 | } | |
1062 | ||
0671fd8e KM |
1063 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1064 | { | |
0168bf0d | 1065 | int dai, order; |
0671fd8e | 1066 | |
0168bf0d LG |
1067 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1068 | order++) { | |
1069 | for (dai = 0; dai < card->num_rtd; dai++) | |
62ae68fa SW |
1070 | soc_remove_link_dais(card, dai, order); |
1071 | } | |
1072 | ||
1073 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1074 | order++) { | |
1075 | for (dai = 0; dai < card->num_rtd; dai++) | |
1076 | soc_remove_link_components(card, dai, order); | |
0168bf0d | 1077 | } |
62ae68fa | 1078 | |
0671fd8e KM |
1079 | card->num_rtd = 0; |
1080 | } | |
1081 | ||
ead9b919 | 1082 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1083 | struct snd_soc_component *component) |
ead9b919 JN |
1084 | { |
1085 | int i; | |
1086 | ||
ff819b83 | 1087 | if (card->codec_conf == NULL) |
ead9b919 JN |
1088 | return; |
1089 | ||
ff819b83 DP |
1090 | for (i = 0; i < card->num_configs; i++) { |
1091 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1092 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1093 | continue; |
94f99c87 | 1094 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1095 | continue; |
94f99c87 | 1096 | component->name_prefix = map->name_prefix; |
3ca041ed | 1097 | break; |
ead9b919 JN |
1098 | } |
1099 | } | |
1100 | ||
f1d45cc3 LPC |
1101 | static int soc_probe_component(struct snd_soc_card *card, |
1102 | struct snd_soc_component *component) | |
589c3563 | 1103 | { |
f1d45cc3 | 1104 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1105 | struct snd_soc_dai *dai; |
f1d45cc3 | 1106 | int ret; |
589c3563 | 1107 | |
70090bbb LPC |
1108 | if (component->probed) |
1109 | return 0; | |
589c3563 | 1110 | |
f1d45cc3 LPC |
1111 | component->card = card; |
1112 | dapm->card = card; | |
1113 | soc_set_name_prefix(card, component); | |
589c3563 | 1114 | |
f1d45cc3 | 1115 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1116 | return -ENODEV; |
1117 | ||
f1d45cc3 | 1118 | soc_init_component_debugfs(component); |
d5d1e0be | 1119 | |
f1d45cc3 LPC |
1120 | if (component->dapm_widgets) { |
1121 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1122 | component->num_dapm_widgets); | |
b318ad50 NP |
1123 | |
1124 | if (ret != 0) { | |
f1d45cc3 | 1125 | dev_err(component->dev, |
b318ad50 NP |
1126 | "Failed to create new controls %d\n", ret); |
1127 | goto err_probe; | |
1128 | } | |
1129 | } | |
77530150 | 1130 | |
0634814f LPC |
1131 | list_for_each_entry(dai, &component->dai_list, list) { |
1132 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1133 | if (ret != 0) { |
0634814f | 1134 | dev_err(component->dev, |
261edc70 NP |
1135 | "Failed to create DAI widgets %d\n", ret); |
1136 | goto err_probe; | |
1137 | } | |
1138 | } | |
888df395 | 1139 | |
f1d45cc3 LPC |
1140 | if (component->probe) { |
1141 | ret = component->probe(component); | |
589c3563 | 1142 | if (ret < 0) { |
f1d45cc3 LPC |
1143 | dev_err(component->dev, |
1144 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1145 | goto err_probe; |
589c3563 | 1146 | } |
cb2cf612 | 1147 | |
f1d45cc3 LPC |
1148 | WARN(dapm->idle_bias_off && |
1149 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1150 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1151 | component->name); | |
be09ad90 LG |
1152 | } |
1153 | ||
f1d45cc3 LPC |
1154 | if (component->controls) |
1155 | snd_soc_add_component_controls(component, component->controls, | |
1156 | component->num_controls); | |
1157 | if (component->dapm_routes) | |
1158 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1159 | component->num_dapm_routes); | |
3fec6b6d | 1160 | |
f1d45cc3 LPC |
1161 | component->probed = 1; |
1162 | list_add(&dapm->list, &card->dapm_list); | |
cb2cf612 | 1163 | |
f1d45cc3 LPC |
1164 | /* This is a HACK and will be removed soon */ |
1165 | if (component->codec) | |
1166 | list_add(&component->codec->card_list, &card->codec_dev_list); | |
956245e9 LG |
1167 | |
1168 | return 0; | |
1169 | ||
1170 | err_probe: | |
f1d45cc3 LPC |
1171 | soc_cleanup_component_debugfs(component); |
1172 | module_put(component->dev->driver->owner); | |
956245e9 LG |
1173 | |
1174 | return ret; | |
1175 | } | |
1176 | ||
36ae1a96 MB |
1177 | static void rtd_release(struct device *dev) |
1178 | { | |
1179 | kfree(dev); | |
1180 | } | |
f0fba2ad | 1181 | |
5f3484ac LPC |
1182 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1183 | const char *name) | |
503ae5e0 | 1184 | { |
589c3563 JN |
1185 | int ret = 0; |
1186 | ||
589c3563 | 1187 | /* register the rtd device */ |
36ae1a96 MB |
1188 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1189 | if (!rtd->dev) | |
1190 | return -ENOMEM; | |
1191 | device_initialize(rtd->dev); | |
5f3484ac | 1192 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1193 | rtd->dev->release = rtd_release; |
d29697dc | 1194 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1195 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1196 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1197 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1198 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1199 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1200 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1201 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1202 | ret = device_add(rtd->dev); |
589c3563 | 1203 | if (ret < 0) { |
865df9cb CL |
1204 | /* calling put_device() here to free the rtd->dev */ |
1205 | put_device(rtd->dev); | |
5f3484ac | 1206 | dev_err(rtd->card->dev, |
f110bfc7 | 1207 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1208 | return ret; |
1209 | } | |
1210 | rtd->dev_registered = 1; | |
589c3563 JN |
1211 | return 0; |
1212 | } | |
1213 | ||
62ae68fa SW |
1214 | static int soc_probe_link_components(struct snd_soc_card *card, int num, |
1215 | int order) | |
1216 | { | |
1217 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
62ae68fa | 1218 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1219 | struct snd_soc_component *component; |
88bd870f | 1220 | int i, ret; |
62ae68fa SW |
1221 | |
1222 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1223 | component = rtd->cpu_dai->component; |
70090bbb | 1224 | if (component->driver->probe_order == order) { |
61aca564 | 1225 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1226 | if (ret < 0) |
1227 | return ret; | |
1228 | } | |
1229 | ||
88bd870f BC |
1230 | /* probe the CODEC-side components */ |
1231 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1232 | component = rtd->codec_dais[i]->component; |
70090bbb | 1233 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1234 | ret = soc_probe_component(card, component); |
88bd870f BC |
1235 | if (ret < 0) |
1236 | return ret; | |
1237 | } | |
62ae68fa SW |
1238 | } |
1239 | ||
1240 | /* probe the platform */ | |
70090bbb | 1241 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1242 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1243 | if (ret < 0) |
1244 | return ret; | |
1245 | } | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
8e2be562 | 1250 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1251 | { |
1252 | int ret; | |
1253 | ||
8e2be562 LPC |
1254 | if (!dai->probed && dai->driver->probe_order == order) { |
1255 | if (dai->driver->probe) { | |
1256 | ret = dai->driver->probe(dai); | |
b0aa88af | 1257 | if (ret < 0) { |
8e2be562 LPC |
1258 | dev_err(dai->dev, |
1259 | "ASoC: failed to probe DAI %s: %d\n", | |
1260 | dai->name, ret); | |
b0aa88af MLC |
1261 | return ret; |
1262 | } | |
1263 | } | |
1264 | ||
8e2be562 | 1265 | dai->probed = 1; |
b0aa88af MLC |
1266 | } |
1267 | ||
1268 | return 0; | |
1269 | } | |
1270 | ||
2436a723 MLC |
1271 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1272 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1273 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1274 | { |
3f901a02 BC |
1275 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1276 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2436a723 MLC |
1277 | struct snd_soc_dapm_widget *play_w, *capture_w; |
1278 | int ret; | |
1279 | ||
88bd870f BC |
1280 | if (rtd->num_codecs > 1) |
1281 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1282 | ||
2436a723 MLC |
1283 | /* link the DAI widgets */ |
1284 | play_w = codec_dai->playback_widget; | |
1285 | capture_w = cpu_dai->capture_widget; | |
1286 | if (play_w && capture_w) { | |
1287 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
c6615082 NO |
1288 | dai_link->num_params, capture_w, |
1289 | play_w); | |
2436a723 MLC |
1290 | if (ret != 0) { |
1291 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1292 | play_w->name, capture_w->name, ret); | |
1293 | return ret; | |
1294 | } | |
1295 | } | |
1296 | ||
1297 | play_w = cpu_dai->playback_widget; | |
1298 | capture_w = codec_dai->capture_widget; | |
1299 | if (play_w && capture_w) { | |
1300 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
c6615082 NO |
1301 | dai_link->num_params, capture_w, |
1302 | play_w); | |
2436a723 MLC |
1303 | if (ret != 0) { |
1304 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1305 | play_w->name, capture_w->name, ret); | |
1306 | return ret; | |
1307 | } | |
1308 | } | |
1309 | ||
1310 | return 0; | |
1311 | } | |
1312 | ||
62ae68fa | 1313 | static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1314 | { |
1315 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1316 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
c74184ed | 1317 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1318 | int i, ret; |
f0fba2ad | 1319 | |
f110bfc7 | 1320 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
0168bf0d | 1321 | card->name, num, order); |
f0fba2ad | 1322 | |
f0fba2ad LG |
1323 | /* set default power off timeout */ |
1324 | rtd->pmdown_time = pmdown_time; | |
1325 | ||
8e2be562 LPC |
1326 | ret = soc_probe_dai(cpu_dai, order); |
1327 | if (ret) | |
1328 | return ret; | |
db2a4165 | 1329 | |
f0fba2ad | 1330 | /* probe the CODEC DAI */ |
88bd870f | 1331 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1332 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1333 | if (ret) |
1334 | return ret; | |
1335 | } | |
fe3e78e0 | 1336 | |
0168bf0d LG |
1337 | /* complete DAI probe during last probe */ |
1338 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1339 | return 0; | |
1340 | ||
5f3484ac LPC |
1341 | /* do machine specific initialization */ |
1342 | if (dai_link->init) { | |
1343 | ret = dai_link->init(rtd); | |
1344 | if (ret < 0) { | |
1345 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1346 | dai_link->name, ret); | |
1347 | return ret; | |
1348 | } | |
1349 | } | |
1350 | ||
a5053a8e KM |
1351 | if (dai_link->dai_fmt) |
1352 | snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1353 | ||
5f3484ac | 1354 | ret = soc_post_component_init(rtd, dai_link->name); |
589c3563 | 1355 | if (ret) |
f0fba2ad | 1356 | return ret; |
fe3e78e0 | 1357 | |
5f3484ac LPC |
1358 | #ifdef CONFIG_DEBUG_FS |
1359 | /* add DPCM sysfs entries */ | |
2e55b90a LPC |
1360 | if (dai_link->dynamic) |
1361 | soc_dpcm_debugfs_add(rtd); | |
5f3484ac LPC |
1362 | #endif |
1363 | ||
1245b700 NK |
1364 | if (cpu_dai->driver->compress_dai) { |
1365 | /*create compress_device"*/ | |
1366 | ret = soc_new_compress(rtd, num); | |
c74184ed | 1367 | if (ret < 0) { |
f110bfc7 | 1368 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1369 | dai_link->stream_name); |
c74184ed MB |
1370 | return ret; |
1371 | } | |
1372 | } else { | |
1245b700 NK |
1373 | |
1374 | if (!dai_link->params) { | |
1375 | /* create the pcm */ | |
1376 | ret = soc_new_pcm(rtd, num); | |
1377 | if (ret < 0) { | |
f110bfc7 | 1378 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1379 | dai_link->stream_name, ret); |
c74184ed MB |
1380 | return ret; |
1381 | } | |
1245b700 | 1382 | } else { |
9d58a077 RF |
1383 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1384 | codec2codec_close_delayed_work); | |
1385 | ||
1245b700 | 1386 | /* link the DAI widgets */ |
3f901a02 | 1387 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1388 | if (ret) |
1389 | return ret; | |
c74184ed | 1390 | } |
f0fba2ad LG |
1391 | } |
1392 | ||
f0fba2ad LG |
1393 | return 0; |
1394 | } | |
1395 | ||
44c69bb1 | 1396 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed | 1397 | { |
44c69bb1 | 1398 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
3ca041ed | 1399 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
65d9361f | 1400 | const char *name = aux_dev->codec_name; |
3ca041ed | 1401 | |
65d9361f LPC |
1402 | rtd->component = soc_find_component(aux_dev->codec_of_node, name); |
1403 | if (!rtd->component) { | |
3ca041ed | 1404 | if (aux_dev->codec_of_node) |
65d9361f | 1405 | name = of_node_full_name(aux_dev->codec_of_node); |
3ca041ed | 1406 | |
65d9361f | 1407 | dev_err(card->dev, "ASoC: %s not registered\n", name); |
3ca041ed SR |
1408 | return -EPROBE_DEFER; |
1409 | } | |
fb099cb7 | 1410 | |
65d9361f LPC |
1411 | /* |
1412 | * Some places still reference rtd->codec, so we have to keep that | |
1413 | * initialized if the component is a CODEC. Once all those references | |
1414 | * have been removed, this code can be removed as well. | |
1415 | */ | |
1416 | rtd->codec = rtd->component->codec; | |
1417 | ||
44c69bb1 | 1418 | return 0; |
b19e6e7b MB |
1419 | } |
1420 | ||
2eea392d JN |
1421 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1422 | { | |
44c69bb1 | 1423 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
2eea392d | 1424 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
44c69bb1 | 1425 | int ret; |
3ca041ed | 1426 | |
65d9361f | 1427 | ret = soc_probe_component(card, rtd->component); |
2eea392d | 1428 | if (ret < 0) |
589c3563 | 1429 | return ret; |
2eea392d | 1430 | |
5f3484ac LPC |
1431 | /* do machine specific initialization */ |
1432 | if (aux_dev->init) { | |
57bf7726 | 1433 | ret = aux_dev->init(rtd->component); |
5f3484ac LPC |
1434 | if (ret < 0) { |
1435 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1436 | aux_dev->name, ret); | |
1437 | return ret; | |
1438 | } | |
1439 | } | |
2eea392d | 1440 | |
5f3484ac | 1441 | return soc_post_component_init(rtd, aux_dev->name); |
2eea392d JN |
1442 | } |
1443 | ||
1444 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1445 | { | |
1446 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
65d9361f | 1447 | struct snd_soc_component *component = rtd->component; |
2eea392d JN |
1448 | |
1449 | /* unregister the rtd device */ | |
1450 | if (rtd->dev_registered) { | |
d3bf1561 | 1451 | device_unregister(rtd->dev); |
2eea392d JN |
1452 | rtd->dev_registered = 0; |
1453 | } | |
1454 | ||
65d9361f LPC |
1455 | if (component && component->probed) |
1456 | soc_remove_component(component); | |
2eea392d JN |
1457 | } |
1458 | ||
f90fb3f7 | 1459 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1460 | { |
1461 | int ret; | |
1462 | ||
1463 | if (codec->cache_init) | |
1464 | return 0; | |
1465 | ||
fdf0f54d DP |
1466 | ret = snd_soc_cache_init(codec); |
1467 | if (ret < 0) { | |
10e8aa9a MM |
1468 | dev_err(codec->dev, |
1469 | "ASoC: Failed to set cache compression type: %d\n", | |
1470 | ret); | |
fdf0f54d DP |
1471 | return ret; |
1472 | } | |
1473 | codec->cache_init = 1; | |
1474 | return 0; | |
1475 | } | |
1476 | ||
ce64c8b9 LPC |
1477 | /** |
1478 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1479 | * @rtd: The runtime for which the DAI link format should be changed | |
1480 | * @dai_fmt: The new DAI link format | |
1481 | * | |
1482 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1483 | * link for the specified runtime. | |
1484 | * | |
1485 | * Note: For setups with a static format set the dai_fmt field in the | |
1486 | * corresponding snd_dai_link struct instead of using this function. | |
1487 | * | |
1488 | * Returns 0 on success, otherwise a negative error code. | |
1489 | */ | |
1490 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1491 | unsigned int dai_fmt) | |
1492 | { | |
1493 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1494 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1495 | unsigned int i; | |
1496 | int ret; | |
1497 | ||
1498 | for (i = 0; i < rtd->num_codecs; i++) { | |
1499 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1500 | ||
1501 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1502 | if (ret != 0 && ret != -ENOTSUPP) { | |
1503 | dev_warn(codec_dai->dev, | |
1504 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1505 | return ret; | |
1506 | } | |
1507 | } | |
1508 | ||
1509 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1510 | if (cpu_dai->codec) { | |
1511 | unsigned int inv_dai_fmt; | |
1512 | ||
1513 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1514 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1515 | case SND_SOC_DAIFMT_CBM_CFM: | |
1516 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1517 | break; | |
1518 | case SND_SOC_DAIFMT_CBM_CFS: | |
1519 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1520 | break; | |
1521 | case SND_SOC_DAIFMT_CBS_CFM: | |
1522 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1523 | break; | |
1524 | case SND_SOC_DAIFMT_CBS_CFS: | |
1525 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1526 | break; | |
1527 | } | |
1528 | ||
1529 | dai_fmt = inv_dai_fmt; | |
1530 | } | |
1531 | ||
1532 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1533 | if (ret != 0 && ret != -ENOTSUPP) { | |
1534 | dev_warn(cpu_dai->dev, | |
1535 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1536 | return ret; | |
1537 | } | |
1538 | ||
1539 | return 0; | |
1540 | } | |
ddaca25a | 1541 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1542 | |
b19e6e7b | 1543 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1544 | { |
fdf0f54d | 1545 | struct snd_soc_codec *codec; |
ce64c8b9 | 1546 | int ret, i, order; |
fe3e78e0 | 1547 | |
34e81ab4 | 1548 | mutex_lock(&client_mutex); |
01b9d99a | 1549 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1550 | |
f0fba2ad | 1551 | /* bind DAIs */ |
b19e6e7b MB |
1552 | for (i = 0; i < card->num_links; i++) { |
1553 | ret = soc_bind_dai_link(card, i); | |
1554 | if (ret != 0) | |
1555 | goto base_error; | |
1556 | } | |
fe3e78e0 | 1557 | |
44c69bb1 | 1558 | /* bind aux_devs too */ |
b19e6e7b | 1559 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 1560 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
1561 | if (ret != 0) |
1562 | goto base_error; | |
f0fba2ad | 1563 | } |
435c5e25 | 1564 | |
fdf0f54d DP |
1565 | /* initialize the register cache for each available codec */ |
1566 | list_for_each_entry(codec, &codec_list, list) { | |
1567 | if (codec->cache_init) | |
1568 | continue; | |
f90fb3f7 | 1569 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
1570 | if (ret < 0) |
1571 | goto base_error; | |
fdf0f54d DP |
1572 | } |
1573 | ||
f0fba2ad | 1574 | /* card bind complete so register a sound card */ |
102b5a8d | 1575 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1576 | card->owner, 0, &card->snd_card); |
1577 | if (ret < 0) { | |
10e8aa9a MM |
1578 | dev_err(card->dev, |
1579 | "ASoC: can't create sound card for card %s: %d\n", | |
1580 | card->name, ret); | |
b19e6e7b | 1581 | goto base_error; |
f0fba2ad | 1582 | } |
f0fba2ad | 1583 | |
0757d834 LPC |
1584 | soc_init_card_debugfs(card); |
1585 | ||
e37a4970 MB |
1586 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1587 | card->dapm.dev = card->dev; | |
1588 | card->dapm.card = card; | |
1589 | list_add(&card->dapm.list, &card->dapm_list); | |
1590 | ||
d5d1e0be LPC |
1591 | #ifdef CONFIG_DEBUG_FS |
1592 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1593 | #endif | |
1594 | ||
88ee1c61 | 1595 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1596 | /* deferred resume work */ |
1597 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1598 | #endif | |
db2a4165 | 1599 | |
9a841ebb MB |
1600 | if (card->dapm_widgets) |
1601 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1602 | card->num_dapm_widgets); | |
1603 | ||
f23e860e NC |
1604 | if (card->of_dapm_widgets) |
1605 | snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, | |
1606 | card->num_of_dapm_widgets); | |
1607 | ||
f0fba2ad LG |
1608 | /* initialise the sound card only once */ |
1609 | if (card->probe) { | |
e7361ec4 | 1610 | ret = card->probe(card); |
f0fba2ad LG |
1611 | if (ret < 0) |
1612 | goto card_probe_error; | |
1613 | } | |
fe3e78e0 | 1614 | |
62ae68fa | 1615 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1616 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1617 | order++) { | |
1618 | for (i = 0; i < card->num_links; i++) { | |
62ae68fa | 1619 | ret = soc_probe_link_components(card, i, order); |
0168bf0d | 1620 | if (ret < 0) { |
f110bfc7 LG |
1621 | dev_err(card->dev, |
1622 | "ASoC: failed to instantiate card %d\n", | |
1623 | ret); | |
62ae68fa SW |
1624 | goto probe_dai_err; |
1625 | } | |
1626 | } | |
1627 | } | |
1628 | ||
1629 | /* probe all DAI links on this card */ | |
1630 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1631 | order++) { | |
1632 | for (i = 0; i < card->num_links; i++) { | |
1633 | ret = soc_probe_link_dais(card, i, order); | |
1634 | if (ret < 0) { | |
f110bfc7 LG |
1635 | dev_err(card->dev, |
1636 | "ASoC: failed to instantiate card %d\n", | |
1637 | ret); | |
0168bf0d LG |
1638 | goto probe_dai_err; |
1639 | } | |
f0fba2ad LG |
1640 | } |
1641 | } | |
db2a4165 | 1642 | |
2eea392d JN |
1643 | for (i = 0; i < card->num_aux_devs; i++) { |
1644 | ret = soc_probe_aux_dev(card, i); | |
1645 | if (ret < 0) { | |
f110bfc7 LG |
1646 | dev_err(card->dev, |
1647 | "ASoC: failed to add auxiliary devices %d\n", | |
1648 | ret); | |
2eea392d JN |
1649 | goto probe_aux_dev_err; |
1650 | } | |
1651 | } | |
1652 | ||
888df395 | 1653 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1654 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1655 | |
b7af1daf | 1656 | if (card->controls) |
022658be | 1657 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1658 | |
b8ad29de MB |
1659 | if (card->dapm_routes) |
1660 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1661 | card->num_dapm_routes); | |
1662 | ||
f23e860e NC |
1663 | if (card->of_dapm_routes) |
1664 | snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, | |
1665 | card->num_of_dapm_routes); | |
75d9ac46 | 1666 | |
f0fba2ad | 1667 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1668 | "%s", card->name); |
22de71ba LG |
1669 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1670 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1671 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1672 | "%s", card->driver_name ? card->driver_name : card->name); | |
1673 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1674 | switch (card->snd_card->driver[i]) { | |
1675 | case '_': | |
1676 | case '-': | |
1677 | case '\0': | |
1678 | break; | |
1679 | default: | |
1680 | if (!isalnum(card->snd_card->driver[i])) | |
1681 | card->snd_card->driver[i] = '_'; | |
1682 | break; | |
1683 | } | |
1684 | } | |
f0fba2ad | 1685 | |
28e9ad92 MB |
1686 | if (card->late_probe) { |
1687 | ret = card->late_probe(card); | |
1688 | if (ret < 0) { | |
f110bfc7 | 1689 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
1690 | card->name, ret); |
1691 | goto probe_aux_dev_err; | |
1692 | } | |
1693 | } | |
1694 | ||
824ef826 | 1695 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 1696 | |
f0fba2ad LG |
1697 | ret = snd_card_register(card->snd_card); |
1698 | if (ret < 0) { | |
f110bfc7 LG |
1699 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
1700 | ret); | |
6b3ed785 | 1701 | goto probe_aux_dev_err; |
db2a4165 FM |
1702 | } |
1703 | ||
f0fba2ad | 1704 | card->instantiated = 1; |
4f4c0072 | 1705 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1706 | mutex_unlock(&card->mutex); |
34e81ab4 | 1707 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
1708 | |
1709 | return 0; | |
f0fba2ad | 1710 | |
2eea392d JN |
1711 | probe_aux_dev_err: |
1712 | for (i = 0; i < card->num_aux_devs; i++) | |
1713 | soc_remove_aux_dev(card, i); | |
1714 | ||
f0fba2ad | 1715 | probe_dai_err: |
0671fd8e | 1716 | soc_remove_dai_links(card); |
f0fba2ad LG |
1717 | |
1718 | card_probe_error: | |
87506549 | 1719 | if (card->remove) |
e7361ec4 | 1720 | card->remove(card); |
f0fba2ad | 1721 | |
0757d834 | 1722 | soc_cleanup_card_debugfs(card); |
f0fba2ad LG |
1723 | snd_card_free(card->snd_card); |
1724 | ||
b19e6e7b | 1725 | base_error: |
f0fba2ad | 1726 | mutex_unlock(&card->mutex); |
34e81ab4 | 1727 | mutex_unlock(&client_mutex); |
db2a4165 | 1728 | |
b19e6e7b | 1729 | return ret; |
435c5e25 MB |
1730 | } |
1731 | ||
1732 | /* probes a new socdev */ | |
1733 | static int soc_probe(struct platform_device *pdev) | |
1734 | { | |
f0fba2ad | 1735 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1736 | |
70a7ca34 VK |
1737 | /* |
1738 | * no card, so machine driver should be registering card | |
1739 | * we should not be here in that case so ret error | |
1740 | */ | |
1741 | if (!card) | |
1742 | return -EINVAL; | |
1743 | ||
fe4085e8 | 1744 | dev_warn(&pdev->dev, |
f110bfc7 | 1745 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
1746 | card->name); |
1747 | ||
435c5e25 MB |
1748 | /* Bodge while we unpick instantiation */ |
1749 | card->dev = &pdev->dev; | |
f0fba2ad | 1750 | |
28d528c8 | 1751 | return snd_soc_register_card(card); |
db2a4165 FM |
1752 | } |
1753 | ||
b0e26485 | 1754 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1755 | { |
1756 | int i; | |
db2a4165 | 1757 | |
b0e26485 VK |
1758 | /* make sure any delayed work runs */ |
1759 | for (i = 0; i < card->num_rtd; i++) { | |
1760 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1761 | flush_delayed_work(&rtd->delayed_work); |
b0e26485 | 1762 | } |
914dc182 | 1763 | |
b0e26485 VK |
1764 | /* remove auxiliary devices */ |
1765 | for (i = 0; i < card->num_aux_devs; i++) | |
1766 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1767 | |
b0e26485 | 1768 | /* remove and free each DAI */ |
0671fd8e | 1769 | soc_remove_dai_links(card); |
2eea392d | 1770 | |
b0e26485 | 1771 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1772 | |
b0e26485 VK |
1773 | /* remove the card */ |
1774 | if (card->remove) | |
e7361ec4 | 1775 | card->remove(card); |
a6052154 | 1776 | |
0aaae527 LPC |
1777 | snd_soc_dapm_free(&card->dapm); |
1778 | ||
b0e26485 VK |
1779 | snd_card_free(card->snd_card); |
1780 | return 0; | |
1781 | ||
1782 | } | |
1783 | ||
1784 | /* removes a socdev */ | |
1785 | static int soc_remove(struct platform_device *pdev) | |
1786 | { | |
1787 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1788 | |
c5af3a2e | 1789 | snd_soc_unregister_card(card); |
db2a4165 FM |
1790 | return 0; |
1791 | } | |
1792 | ||
6f8ab4ac | 1793 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1794 | { |
6f8ab4ac | 1795 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1796 | int i; |
51737470 MB |
1797 | |
1798 | if (!card->instantiated) | |
416356fc | 1799 | return 0; |
51737470 MB |
1800 | |
1801 | /* Flush out pmdown_time work - we actually do want to run it | |
1802 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1803 | for (i = 0; i < card->num_rtd; i++) { |
1804 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1805 | flush_delayed_work(&rtd->delayed_work); |
f0fba2ad | 1806 | } |
51737470 | 1807 | |
f0fba2ad | 1808 | snd_soc_dapm_shutdown(card); |
416356fc | 1809 | |
988e8cc4 NC |
1810 | /* deactivate pins to sleep state */ |
1811 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
1812 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
1813 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1814 | int j; | |
1815 | ||
988e8cc4 | 1816 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
88bd870f BC |
1817 | for (j = 0; j < rtd->num_codecs; j++) { |
1818 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
1819 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
1820 | } | |
988e8cc4 NC |
1821 | } |
1822 | ||
416356fc | 1823 | return 0; |
51737470 | 1824 | } |
6f8ab4ac | 1825 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1826 | |
6f8ab4ac | 1827 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1828 | .suspend = snd_soc_suspend, |
1829 | .resume = snd_soc_resume, | |
1830 | .freeze = snd_soc_suspend, | |
1831 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1832 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1833 | .restore = snd_soc_resume, |
416356fc | 1834 | }; |
deb2607e | 1835 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1836 | |
db2a4165 FM |
1837 | /* ASoC platform driver */ |
1838 | static struct platform_driver soc_driver = { | |
1839 | .driver = { | |
1840 | .name = "soc-audio", | |
6f8ab4ac | 1841 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1842 | }, |
1843 | .probe = soc_probe, | |
1844 | .remove = soc_remove, | |
db2a4165 FM |
1845 | }; |
1846 | ||
db2a4165 FM |
1847 | /** |
1848 | * snd_soc_cnew - create new control | |
1849 | * @_template: control template | |
1850 | * @data: control private data | |
ac11a2b3 | 1851 | * @long_name: control long name |
efb7ac3f | 1852 | * @prefix: control name prefix |
db2a4165 FM |
1853 | * |
1854 | * Create a new mixer control from a template control. | |
1855 | * | |
1856 | * Returns 0 for success, else error. | |
1857 | */ | |
1858 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 1859 | void *data, const char *long_name, |
efb7ac3f | 1860 | const char *prefix) |
db2a4165 FM |
1861 | { |
1862 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1863 | struct snd_kcontrol *kcontrol; |
1864 | char *name = NULL; | |
db2a4165 FM |
1865 | |
1866 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1867 | template.index = 0; |
1868 | ||
efb7ac3f MB |
1869 | if (!long_name) |
1870 | long_name = template.name; | |
1871 | ||
1872 | if (prefix) { | |
2b581074 | 1873 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
1874 | if (!name) |
1875 | return NULL; | |
1876 | ||
efb7ac3f MB |
1877 | template.name = name; |
1878 | } else { | |
1879 | template.name = long_name; | |
1880 | } | |
1881 | ||
1882 | kcontrol = snd_ctl_new1(&template, data); | |
1883 | ||
1884 | kfree(name); | |
1885 | ||
1886 | return kcontrol; | |
db2a4165 FM |
1887 | } |
1888 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1889 | ||
022658be LG |
1890 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
1891 | const struct snd_kcontrol_new *controls, int num_controls, | |
1892 | const char *prefix, void *data) | |
1893 | { | |
1894 | int err, i; | |
1895 | ||
1896 | for (i = 0; i < num_controls; i++) { | |
1897 | const struct snd_kcontrol_new *control = &controls[i]; | |
1898 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
1899 | control->name, prefix)); | |
1900 | if (err < 0) { | |
f110bfc7 LG |
1901 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
1902 | control->name, err); | |
022658be LG |
1903 | return err; |
1904 | } | |
1905 | } | |
1906 | ||
1907 | return 0; | |
1908 | } | |
1909 | ||
4fefd698 DP |
1910 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
1911 | const char *name) | |
1912 | { | |
1913 | struct snd_card *card = soc_card->snd_card; | |
1914 | struct snd_kcontrol *kctl; | |
1915 | ||
1916 | if (unlikely(!name)) | |
1917 | return NULL; | |
1918 | ||
1919 | list_for_each_entry(kctl, &card->controls, list) | |
1920 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
1921 | return kctl; | |
1922 | return NULL; | |
1923 | } | |
1924 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
1925 | ||
0f2780ad LPC |
1926 | /** |
1927 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
1928 | * | |
1929 | * @component: Component to add controls to | |
1930 | * @controls: Array of controls to add | |
1931 | * @num_controls: Number of elements in the array | |
1932 | * | |
1933 | * Return: 0 for success, else error. | |
1934 | */ | |
1935 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
1936 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
1937 | { | |
1938 | struct snd_card *card = component->card->snd_card; | |
1939 | ||
1940 | return snd_soc_add_controls(card, component->dev, controls, | |
1941 | num_controls, component->name_prefix, component); | |
1942 | } | |
1943 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
1944 | ||
3e8e1952 | 1945 | /** |
022658be LG |
1946 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
1947 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
1948 | * duplicating this code. |
1949 | * | |
1950 | * @codec: codec to add controls to | |
1951 | * @controls: array of controls to add | |
1952 | * @num_controls: number of elements in the array | |
1953 | * | |
1954 | * Return 0 for success, else error. | |
1955 | */ | |
022658be | 1956 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 1957 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 1958 | { |
0f2780ad LPC |
1959 | return snd_soc_add_component_controls(&codec->component, controls, |
1960 | num_controls); | |
3e8e1952 | 1961 | } |
022658be | 1962 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 1963 | |
a491a5c8 LG |
1964 | /** |
1965 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 1966 | * Convenience function to add a list of controls. |
a491a5c8 LG |
1967 | * |
1968 | * @platform: platform to add controls to | |
1969 | * @controls: array of controls to add | |
1970 | * @num_controls: number of elements in the array | |
1971 | * | |
1972 | * Return 0 for success, else error. | |
1973 | */ | |
1974 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 1975 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 1976 | { |
0f2780ad LPC |
1977 | return snd_soc_add_component_controls(&platform->component, controls, |
1978 | num_controls); | |
a491a5c8 LG |
1979 | } |
1980 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
1981 | ||
022658be LG |
1982 | /** |
1983 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
1984 | * Convenience function to add a list of controls. | |
1985 | * | |
1986 | * @soc_card: SoC card to add controls to | |
1987 | * @controls: array of controls to add | |
1988 | * @num_controls: number of elements in the array | |
1989 | * | |
1990 | * Return 0 for success, else error. | |
1991 | */ | |
1992 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
1993 | const struct snd_kcontrol_new *controls, int num_controls) | |
1994 | { | |
1995 | struct snd_card *card = soc_card->snd_card; | |
1996 | ||
1997 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
1998 | NULL, soc_card); | |
1999 | } | |
2000 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2001 | ||
2002 | /** | |
2003 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2004 | * Convienience function to add a list of controls. | |
2005 | * | |
2006 | * @dai: DAI to add controls to | |
2007 | * @controls: array of controls to add | |
2008 | * @num_controls: number of elements in the array | |
2009 | * | |
2010 | * Return 0 for success, else error. | |
2011 | */ | |
2012 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2013 | const struct snd_kcontrol_new *controls, int num_controls) | |
2014 | { | |
313665b9 | 2015 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2016 | |
2017 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2018 | NULL, dai); | |
2019 | } | |
2020 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2021 | ||
8c6529db LG |
2022 | /** |
2023 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2024 | * @dai: DAI | |
2025 | * @clk_id: DAI specific clock ID | |
2026 | * @freq: new clock frequency in Hz | |
2027 | * @dir: new clock direction - input/output. | |
2028 | * | |
2029 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2030 | */ | |
2031 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2032 | unsigned int freq, int dir) | |
2033 | { | |
f0fba2ad LG |
2034 | if (dai->driver && dai->driver->ops->set_sysclk) |
2035 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2036 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2037 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2038 | freq, dir); |
8c6529db | 2039 | else |
1104a9c8 | 2040 | return -ENOTSUPP; |
8c6529db LG |
2041 | } |
2042 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2043 | ||
ec4ee52a MB |
2044 | /** |
2045 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2046 | * @codec: CODEC | |
2047 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2048 | * @source: Source for the clock |
ec4ee52a MB |
2049 | * @freq: new clock frequency in Hz |
2050 | * @dir: new clock direction - input/output. | |
2051 | * | |
2052 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2053 | */ | |
2054 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2055 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2056 | { |
2057 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2058 | return codec->driver->set_sysclk(codec, clk_id, source, |
2059 | freq, dir); | |
ec4ee52a | 2060 | else |
1104a9c8 | 2061 | return -ENOTSUPP; |
ec4ee52a MB |
2062 | } |
2063 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2064 | ||
8c6529db LG |
2065 | /** |
2066 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2067 | * @dai: DAI | |
ac11a2b3 | 2068 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2069 | * @div: new clock divisor. |
2070 | * | |
2071 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2072 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2073 | * and frame clocks as low as possible to save system power. | |
2074 | */ | |
2075 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2076 | int div_id, int div) | |
2077 | { | |
f0fba2ad LG |
2078 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2079 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2080 | else |
2081 | return -EINVAL; | |
2082 | } | |
2083 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2084 | ||
2085 | /** | |
2086 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2087 | * @dai: DAI | |
2088 | * @pll_id: DAI specific PLL ID | |
85488037 | 2089 | * @source: DAI specific source for the PLL |
8c6529db LG |
2090 | * @freq_in: PLL input clock frequency in Hz |
2091 | * @freq_out: requested PLL output clock frequency in Hz | |
2092 | * | |
2093 | * Configures and enables PLL to generate output clock based on input clock. | |
2094 | */ | |
85488037 MB |
2095 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2096 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2097 | { |
f0fba2ad LG |
2098 | if (dai->driver && dai->driver->ops->set_pll) |
2099 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2100 | freq_in, freq_out); |
ec4ee52a MB |
2101 | else if (dai->codec && dai->codec->driver->set_pll) |
2102 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2103 | freq_in, freq_out); | |
8c6529db LG |
2104 | else |
2105 | return -EINVAL; | |
2106 | } | |
2107 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2108 | ||
ec4ee52a MB |
2109 | /* |
2110 | * snd_soc_codec_set_pll - configure codec PLL. | |
2111 | * @codec: CODEC | |
2112 | * @pll_id: DAI specific PLL ID | |
2113 | * @source: DAI specific source for the PLL | |
2114 | * @freq_in: PLL input clock frequency in Hz | |
2115 | * @freq_out: requested PLL output clock frequency in Hz | |
2116 | * | |
2117 | * Configures and enables PLL to generate output clock based on input clock. | |
2118 | */ | |
2119 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2120 | unsigned int freq_in, unsigned int freq_out) | |
2121 | { | |
2122 | if (codec->driver->set_pll) | |
2123 | return codec->driver->set_pll(codec, pll_id, source, | |
2124 | freq_in, freq_out); | |
2125 | else | |
2126 | return -EINVAL; | |
2127 | } | |
2128 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2129 | ||
e54cf76b LG |
2130 | /** |
2131 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2132 | * @dai: DAI | |
2133 | * @ratio Ratio of BCLK to Sample rate. | |
2134 | * | |
2135 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2136 | */ | |
2137 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2138 | { | |
2139 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2140 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2141 | else | |
2142 | return -EINVAL; | |
2143 | } | |
2144 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2145 | ||
8c6529db LG |
2146 | /** |
2147 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2148 | * @dai: DAI | |
8c6529db LG |
2149 | * @fmt: SND_SOC_DAIFMT_ format value. |
2150 | * | |
2151 | * Configures the DAI hardware format and clocking. | |
2152 | */ | |
2153 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2154 | { | |
5e4ba569 | 2155 | if (dai->driver == NULL) |
8c6529db | 2156 | return -EINVAL; |
5e4ba569 SG |
2157 | if (dai->driver->ops->set_fmt == NULL) |
2158 | return -ENOTSUPP; | |
2159 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2160 | } |
2161 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2162 | ||
89c67857 | 2163 | /** |
e5c21514 | 2164 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2165 | * @slots: Number of slots in use. |
2166 | * @tx_mask: bitmask representing active TX slots. | |
2167 | * @rx_mask: bitmask representing active RX slots. | |
2168 | * | |
2169 | * Generates the TDM tx and rx slot default masks for DAI. | |
2170 | */ | |
e5c21514 | 2171 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2172 | unsigned int *tx_mask, |
2173 | unsigned int *rx_mask) | |
2174 | { | |
2175 | if (*tx_mask || *rx_mask) | |
2176 | return 0; | |
2177 | ||
2178 | if (!slots) | |
2179 | return -EINVAL; | |
2180 | ||
2181 | *tx_mask = (1 << slots) - 1; | |
2182 | *rx_mask = (1 << slots) - 1; | |
2183 | ||
2184 | return 0; | |
2185 | } | |
2186 | ||
8c6529db | 2187 | /** |
e46c9366 LPC |
2188 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2189 | * @dai: The DAI to configure | |
a5479e38 DR |
2190 | * @tx_mask: bitmask representing active TX slots. |
2191 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2192 | * @slots: Number of slots in use. |
a5479e38 | 2193 | * @slot_width: Width in bits for each slot. |
8c6529db | 2194 | * |
e46c9366 LPC |
2195 | * This function configures the specified DAI for TDM operation. @slot contains |
2196 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2197 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2198 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2199 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2200 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2201 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2202 | * maps to the first channel of the DAI, the second active slot to the second | |
2203 | * channel and so on. | |
2204 | * | |
2205 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2206 | * @rx_mask and @slot_width will be ignored. | |
2207 | * | |
2208 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2209 | */ |
2210 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2211 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2212 | { |
e5c21514 XL |
2213 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2214 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2215 | &tx_mask, &rx_mask); |
2216 | else | |
e5c21514 | 2217 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2218 | |
88bd870f BC |
2219 | dai->tx_mask = tx_mask; |
2220 | dai->rx_mask = rx_mask; | |
2221 | ||
f0fba2ad LG |
2222 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2223 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2224 | slots, slot_width); |
8c6529db | 2225 | else |
b2cbb6e1 | 2226 | return -ENOTSUPP; |
8c6529db LG |
2227 | } |
2228 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2229 | ||
472df3cb BS |
2230 | /** |
2231 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2232 | * @dai: DAI | |
2233 | * @tx_num: how many TX channels | |
2234 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2235 | * 0~num-1 uses | |
2236 | * @rx_num: how many RX channels | |
2237 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2238 | * 0~num-1 uses | |
2239 | * | |
2240 | * configure the relationship between channel number and TDM slot number. | |
2241 | */ | |
2242 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2243 | unsigned int tx_num, unsigned int *tx_slot, | |
2244 | unsigned int rx_num, unsigned int *rx_slot) | |
2245 | { | |
f0fba2ad LG |
2246 | if (dai->driver && dai->driver->ops->set_channel_map) |
2247 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2248 | rx_num, rx_slot); |
2249 | else | |
2250 | return -EINVAL; | |
2251 | } | |
2252 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2253 | ||
8c6529db LG |
2254 | /** |
2255 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2256 | * @dai: DAI | |
2257 | * @tristate: tristate enable | |
2258 | * | |
2259 | * Tristates the DAI so that others can use it. | |
2260 | */ | |
2261 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2262 | { | |
f0fba2ad LG |
2263 | if (dai->driver && dai->driver->ops->set_tristate) |
2264 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2265 | else |
2266 | return -EINVAL; | |
2267 | } | |
2268 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2269 | ||
2270 | /** | |
2271 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2272 | * @dai: DAI | |
2273 | * @mute: mute enable | |
da18396f | 2274 | * @direction: stream to mute |
8c6529db LG |
2275 | * |
2276 | * Mutes the DAI DAC. | |
2277 | */ | |
da18396f MB |
2278 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2279 | int direction) | |
8c6529db | 2280 | { |
da18396f MB |
2281 | if (!dai->driver) |
2282 | return -ENOTSUPP; | |
2283 | ||
2284 | if (dai->driver->ops->mute_stream) | |
2285 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2286 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2287 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2288 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2289 | else |
04570c62 | 2290 | return -ENOTSUPP; |
8c6529db LG |
2291 | } |
2292 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2293 | ||
88bd870f BC |
2294 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
2295 | struct snd_soc_dai_link *dai_link) | |
2296 | { | |
2297 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
2298 | if (dai_link->codec_name || dai_link->codec_of_node || | |
2299 | dai_link->codec_dai_name) { | |
2300 | dai_link->num_codecs = 1; | |
2301 | ||
2302 | dai_link->codecs = devm_kzalloc(card->dev, | |
2303 | sizeof(struct snd_soc_dai_link_component), | |
2304 | GFP_KERNEL); | |
2305 | if (!dai_link->codecs) | |
2306 | return -ENOMEM; | |
2307 | ||
2308 | dai_link->codecs[0].name = dai_link->codec_name; | |
2309 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
2310 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
2311 | } | |
2312 | ||
2313 | if (!dai_link->codecs) { | |
2314 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
2315 | return -EINVAL; | |
2316 | } | |
2317 | ||
2318 | return 0; | |
2319 | } | |
2320 | ||
c5af3a2e MB |
2321 | /** |
2322 | * snd_soc_register_card - Register a card with the ASoC core | |
2323 | * | |
ac11a2b3 | 2324 | * @card: Card to register |
c5af3a2e | 2325 | * |
c5af3a2e | 2326 | */ |
70a7ca34 | 2327 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2328 | { |
88bd870f | 2329 | int i, j, ret; |
f0fba2ad | 2330 | |
c5af3a2e MB |
2331 | if (!card->name || !card->dev) |
2332 | return -EINVAL; | |
2333 | ||
5a504963 SW |
2334 | for (i = 0; i < card->num_links; i++) { |
2335 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2336 | ||
88bd870f BC |
2337 | ret = snd_soc_init_multicodec(card, link); |
2338 | if (ret) { | |
2339 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
2340 | return ret; | |
5a504963 | 2341 | } |
88bd870f BC |
2342 | |
2343 | for (j = 0; j < link->num_codecs; j++) { | |
2344 | /* | |
2345 | * Codec must be specified by 1 of name or OF node, | |
2346 | * not both or neither. | |
2347 | */ | |
2348 | if (!!link->codecs[j].name == | |
2349 | !!link->codecs[j].of_node) { | |
2350 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
2351 | link->name); | |
2352 | return -EINVAL; | |
2353 | } | |
2354 | /* Codec DAI name must be specified */ | |
2355 | if (!link->codecs[j].dai_name) { | |
2356 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
2357 | link->name); | |
2358 | return -EINVAL; | |
2359 | } | |
bc92657a | 2360 | } |
5a504963 SW |
2361 | |
2362 | /* | |
2363 | * Platform may be specified by either name or OF node, but | |
2364 | * can be left unspecified, and a dummy platform will be used. | |
2365 | */ | |
2366 | if (link->platform_name && link->platform_of_node) { | |
10e8aa9a MM |
2367 | dev_err(card->dev, |
2368 | "ASoC: Both platform name/of_node are set for %s\n", | |
2369 | link->name); | |
5a504963 SW |
2370 | return -EINVAL; |
2371 | } | |
2372 | ||
2373 | /* | |
bc92657a SW |
2374 | * CPU device may be specified by either name or OF node, but |
2375 | * can be left unspecified, and will be matched based on DAI | |
2376 | * name alone.. | |
2377 | */ | |
2378 | if (link->cpu_name && link->cpu_of_node) { | |
10e8aa9a MM |
2379 | dev_err(card->dev, |
2380 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
2381 | link->name); | |
bc92657a SW |
2382 | return -EINVAL; |
2383 | } | |
2384 | /* | |
2385 | * At least one of CPU DAI name or CPU device name/node must be | |
2386 | * specified | |
5a504963 | 2387 | */ |
bc92657a SW |
2388 | if (!link->cpu_dai_name && |
2389 | !(link->cpu_name || link->cpu_of_node)) { | |
10e8aa9a MM |
2390 | dev_err(card->dev, |
2391 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
2392 | link->name); | |
5a504963 SW |
2393 | return -EINVAL; |
2394 | } | |
2395 | } | |
2396 | ||
ed77cc12 MB |
2397 | dev_set_drvdata(card->dev, card); |
2398 | ||
111c6419 SW |
2399 | snd_soc_initialize_card_lists(card); |
2400 | ||
181a6892 MB |
2401 | card->rtd = devm_kzalloc(card->dev, |
2402 | sizeof(struct snd_soc_pcm_runtime) * | |
2403 | (card->num_links + card->num_aux_devs), | |
2404 | GFP_KERNEL); | |
f0fba2ad LG |
2405 | if (card->rtd == NULL) |
2406 | return -ENOMEM; | |
a7dbb603 | 2407 | card->num_rtd = 0; |
2eea392d | 2408 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad | 2409 | |
5f3484ac LPC |
2410 | for (i = 0; i < card->num_links; i++) { |
2411 | card->rtd[i].card = card; | |
f0fba2ad | 2412 | card->rtd[i].dai_link = &card->dai_link[i]; |
88bd870f BC |
2413 | card->rtd[i].codec_dais = devm_kzalloc(card->dev, |
2414 | sizeof(struct snd_soc_dai *) * | |
2415 | (card->rtd[i].dai_link->num_codecs), | |
2416 | GFP_KERNEL); | |
2417 | if (card->rtd[i].codec_dais == NULL) | |
2418 | return -ENOMEM; | |
5f3484ac LPC |
2419 | } |
2420 | ||
2421 | for (i = 0; i < card->num_aux_devs; i++) | |
2422 | card->rtd_aux[i].card = card; | |
f0fba2ad | 2423 | |
db432b41 | 2424 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 2425 | card->instantiated = 0; |
f0fba2ad | 2426 | mutex_init(&card->mutex); |
a73fb2df | 2427 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2428 | |
b19e6e7b MB |
2429 | ret = snd_soc_instantiate_card(card); |
2430 | if (ret != 0) | |
4e2576bd | 2431 | return ret; |
c5af3a2e | 2432 | |
988e8cc4 NC |
2433 | /* deactivate pins to sleep state */ |
2434 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
2435 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
2436 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2437 | int j; | |
2438 | ||
2439 | for (j = 0; j < rtd->num_codecs; j++) { | |
2440 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2441 | if (!codec_dai->active) | |
2442 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2443 | } | |
2444 | ||
988e8cc4 NC |
2445 | if (!cpu_dai->active) |
2446 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2447 | } | |
2448 | ||
b19e6e7b | 2449 | return ret; |
c5af3a2e | 2450 | } |
70a7ca34 | 2451 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2452 | |
2453 | /** | |
2454 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2455 | * | |
ac11a2b3 | 2456 | * @card: Card to unregister |
c5af3a2e | 2457 | * |
c5af3a2e | 2458 | */ |
70a7ca34 | 2459 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2460 | { |
01e0df66 LPC |
2461 | if (card->instantiated) { |
2462 | card->instantiated = false; | |
1c325f77 | 2463 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2464 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2465 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2466 | } |
c5af3a2e MB |
2467 | |
2468 | return 0; | |
2469 | } | |
70a7ca34 | 2470 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2471 | |
f0fba2ad LG |
2472 | /* |
2473 | * Simplify DAI link configuration by removing ".-1" from device names | |
2474 | * and sanitizing names. | |
2475 | */ | |
0b9a214a | 2476 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2477 | { |
2478 | char *found, name[NAME_SIZE]; | |
2479 | int id1, id2; | |
2480 | ||
2481 | if (dev_name(dev) == NULL) | |
2482 | return NULL; | |
2483 | ||
58818a77 | 2484 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2485 | |
2486 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2487 | found = strstr(name, dev->driver->name); | |
2488 | if (found) { | |
2489 | /* get ID */ | |
2490 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2491 | ||
2492 | /* discard ID from name if ID == -1 */ | |
2493 | if (*id == -1) | |
2494 | found[strlen(dev->driver->name)] = '\0'; | |
2495 | } | |
2496 | ||
2497 | } else { | |
2498 | /* I2C component devices are named "bus-addr" */ | |
2499 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2500 | char tmp[NAME_SIZE]; | |
2501 | ||
2502 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2503 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2504 | |
2505 | /* sanitize component name for DAI link creation */ | |
2506 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2507 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2508 | } else |
2509 | *id = 0; | |
2510 | } | |
2511 | ||
2512 | return kstrdup(name, GFP_KERNEL); | |
2513 | } | |
2514 | ||
2515 | /* | |
2516 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2517 | * any ".-1" and using the DAI name (instead of device name). | |
2518 | */ | |
2519 | static inline char *fmt_multiple_name(struct device *dev, | |
2520 | struct snd_soc_dai_driver *dai_drv) | |
2521 | { | |
2522 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2523 | dev_err(dev, |
2524 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2525 | dev_name(dev)); | |
f0fba2ad LG |
2526 | return NULL; |
2527 | } | |
2528 | ||
2529 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2530 | } | |
2531 | ||
9115171a | 2532 | /** |
32c9ba54 | 2533 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2534 | * |
32c9ba54 | 2535 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2536 | */ |
32c9ba54 | 2537 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2538 | { |
5c1d5f09 | 2539 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2540 | |
5c1d5f09 | 2541 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2542 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2543 | dai->name); | |
5c1d5f09 | 2544 | list_del(&dai->list); |
32c9ba54 | 2545 | kfree(dai->name); |
f0fba2ad | 2546 | kfree(dai); |
f0fba2ad | 2547 | } |
9115171a | 2548 | } |
9115171a MB |
2549 | |
2550 | /** | |
32c9ba54 | 2551 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 2552 | * |
6106d129 LPC |
2553 | * @component: The component the DAIs are registered for |
2554 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 2555 | * @count: Number of DAIs |
32c9ba54 LPC |
2556 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
2557 | * parent's name. | |
9115171a | 2558 | */ |
6106d129 | 2559 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
2560 | struct snd_soc_dai_driver *dai_drv, size_t count, |
2561 | bool legacy_dai_naming) | |
9115171a | 2562 | { |
6106d129 | 2563 | struct device *dev = component->dev; |
f0fba2ad | 2564 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
2565 | unsigned int i; |
2566 | int ret; | |
f0fba2ad | 2567 | |
f110bfc7 | 2568 | dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count); |
9115171a | 2569 | |
bb13109d LPC |
2570 | component->dai_drv = dai_drv; |
2571 | component->num_dai = count; | |
2572 | ||
9115171a | 2573 | for (i = 0; i < count; i++) { |
f0fba2ad LG |
2574 | |
2575 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
2576 | if (dai == NULL) { |
2577 | ret = -ENOMEM; | |
2578 | goto err; | |
2579 | } | |
f0fba2ad | 2580 | |
32c9ba54 LPC |
2581 | /* |
2582 | * Back in the old days when we still had component-less DAIs, | |
2583 | * instead of having a static name, component-less DAIs would | |
2584 | * inherit the name of the parent device so it is possible to | |
2585 | * register multiple instances of the DAI. We still need to keep | |
2586 | * the same naming style even though those DAIs are not | |
2587 | * component-less anymore. | |
2588 | */ | |
2589 | if (count == 1 && legacy_dai_naming) { | |
2590 | dai->name = fmt_single_name(dev, &dai->id); | |
2591 | } else { | |
2592 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
2593 | if (dai_drv[i].id) | |
2594 | dai->id = dai_drv[i].id; | |
2595 | else | |
2596 | dai->id = i; | |
2597 | } | |
f0fba2ad LG |
2598 | if (dai->name == NULL) { |
2599 | kfree(dai); | |
32c9ba54 | 2600 | ret = -ENOMEM; |
9115171a | 2601 | goto err; |
f0fba2ad LG |
2602 | } |
2603 | ||
6106d129 | 2604 | dai->component = component; |
f0fba2ad | 2605 | dai->dev = dev; |
f0fba2ad LG |
2606 | dai->driver = &dai_drv[i]; |
2607 | if (!dai->driver->ops) | |
2608 | dai->driver->ops = &null_dai_ops; | |
2609 | ||
1438c2f6 | 2610 | list_add(&dai->list, &component->dai_list); |
054880fe | 2611 | |
32c9ba54 | 2612 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); |
9115171a MB |
2613 | } |
2614 | ||
2615 | return 0; | |
2616 | ||
2617 | err: | |
32c9ba54 | 2618 | snd_soc_unregister_dais(component); |
9115171a MB |
2619 | |
2620 | return ret; | |
2621 | } | |
9115171a | 2622 | |
14e8bdeb LPC |
2623 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
2624 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 2625 | { |
14e8bdeb | 2626 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 2627 | |
14e8bdeb LPC |
2628 | component->driver->seq_notifier(component, type, subseq); |
2629 | } | |
d191bd8d | 2630 | |
14e8bdeb LPC |
2631 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
2632 | int event) | |
2633 | { | |
2634 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 2635 | |
14e8bdeb LPC |
2636 | return component->driver->stream_event(component, event); |
2637 | } | |
e2c330b9 | 2638 | |
bb13109d LPC |
2639 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
2640 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 2641 | { |
ce0fc93a LPC |
2642 | struct snd_soc_dapm_context *dapm; |
2643 | ||
bb13109d LPC |
2644 | component->name = fmt_single_name(dev, &component->id); |
2645 | if (!component->name) { | |
2646 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
2647 | return -ENOMEM; |
2648 | } | |
2649 | ||
bb13109d LPC |
2650 | component->dev = dev; |
2651 | component->driver = driver; | |
61aca564 LPC |
2652 | component->probe = component->driver->probe; |
2653 | component->remove = component->driver->remove; | |
d191bd8d | 2654 | |
ce0fc93a LPC |
2655 | if (!component->dapm_ptr) |
2656 | component->dapm_ptr = &component->dapm; | |
2657 | ||
2658 | dapm = component->dapm_ptr; | |
2659 | dapm->dev = dev; | |
2660 | dapm->component = component; | |
2661 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 2662 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
2663 | if (driver->seq_notifier) |
2664 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
2665 | if (driver->stream_event) | |
2666 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 2667 | |
61aca564 LPC |
2668 | component->controls = driver->controls; |
2669 | component->num_controls = driver->num_controls; | |
2670 | component->dapm_widgets = driver->dapm_widgets; | |
2671 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
2672 | component->dapm_routes = driver->dapm_routes; | |
2673 | component->num_dapm_routes = driver->num_dapm_routes; | |
2674 | ||
bb13109d LPC |
2675 | INIT_LIST_HEAD(&component->dai_list); |
2676 | mutex_init(&component->io_mutex); | |
d191bd8d | 2677 | |
bb13109d LPC |
2678 | return 0; |
2679 | } | |
d191bd8d | 2680 | |
20feb881 | 2681 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 2682 | { |
20feb881 LPC |
2683 | int val_bytes = regmap_get_val_bytes(component->regmap); |
2684 | ||
2685 | /* Errors are legitimate for non-integer byte multiples */ | |
2686 | if (val_bytes > 0) | |
2687 | component->val_bytes = val_bytes; | |
2688 | } | |
2689 | ||
e874bf5f LPC |
2690 | #ifdef CONFIG_REGMAP |
2691 | ||
20feb881 LPC |
2692 | /** |
2693 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
2694 | * @component: The component for which to initialize the regmap instance | |
2695 | * @regmap: The regmap instance that should be used by the component | |
2696 | * | |
2697 | * This function allows deferred assignment of the regmap instance that is | |
2698 | * associated with the component. Only use this if the regmap instance is not | |
2699 | * yet ready when the component is registered. The function must also be called | |
2700 | * before the first IO attempt of the component. | |
2701 | */ | |
2702 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
2703 | struct regmap *regmap) | |
2704 | { | |
2705 | component->regmap = regmap; | |
2706 | snd_soc_component_setup_regmap(component); | |
886f5692 | 2707 | } |
20feb881 LPC |
2708 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
2709 | ||
2710 | /** | |
2711 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
2712 | * @component: The component for which to de-initialize the regmap instance | |
2713 | * | |
2714 | * Calls regmap_exit() on the regmap instance associated to the component and | |
2715 | * removes the regmap instance from the component. | |
2716 | * | |
2717 | * This function should only be used if snd_soc_component_init_regmap() was used | |
2718 | * to initialize the regmap instance. | |
2719 | */ | |
2720 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
2721 | { | |
2722 | regmap_exit(component->regmap); | |
2723 | component->regmap = NULL; | |
2724 | } | |
2725 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 2726 | |
e874bf5f | 2727 | #endif |
886f5692 | 2728 | |
bb13109d LPC |
2729 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
2730 | { | |
20feb881 LPC |
2731 | if (!component->write && !component->read) { |
2732 | if (!component->regmap) | |
2733 | component->regmap = dev_get_regmap(component->dev, NULL); | |
2734 | if (component->regmap) | |
2735 | snd_soc_component_setup_regmap(component); | |
2736 | } | |
886f5692 | 2737 | |
bb13109d LPC |
2738 | list_add(&component->list, &component_list); |
2739 | } | |
d191bd8d | 2740 | |
bb13109d LPC |
2741 | static void snd_soc_component_add(struct snd_soc_component *component) |
2742 | { | |
d191bd8d | 2743 | mutex_lock(&client_mutex); |
bb13109d | 2744 | snd_soc_component_add_unlocked(component); |
d191bd8d | 2745 | mutex_unlock(&client_mutex); |
bb13109d | 2746 | } |
d191bd8d | 2747 | |
bb13109d LPC |
2748 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
2749 | { | |
2750 | snd_soc_unregister_dais(component); | |
2751 | kfree(component->name); | |
2752 | } | |
d191bd8d | 2753 | |
bb13109d LPC |
2754 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
2755 | { | |
2756 | list_del(&component->list); | |
2757 | } | |
d191bd8d | 2758 | |
d191bd8d KM |
2759 | int snd_soc_register_component(struct device *dev, |
2760 | const struct snd_soc_component_driver *cmpnt_drv, | |
2761 | struct snd_soc_dai_driver *dai_drv, | |
2762 | int num_dai) | |
2763 | { | |
2764 | struct snd_soc_component *cmpnt; | |
bb13109d | 2765 | int ret; |
d191bd8d | 2766 | |
bb13109d | 2767 | cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); |
d191bd8d KM |
2768 | if (!cmpnt) { |
2769 | dev_err(dev, "ASoC: Failed to allocate memory\n"); | |
2770 | return -ENOMEM; | |
2771 | } | |
2772 | ||
bb13109d LPC |
2773 | ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); |
2774 | if (ret) | |
2775 | goto err_free; | |
2776 | ||
3d59400f | 2777 | cmpnt->ignore_pmdown_time = true; |
98e639fb | 2778 | cmpnt->registered_as_component = true; |
3d59400f | 2779 | |
bb13109d LPC |
2780 | ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); |
2781 | if (ret < 0) { | |
f42cf8d6 | 2782 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d LPC |
2783 | goto err_cleanup; |
2784 | } | |
d191bd8d | 2785 | |
bb13109d | 2786 | snd_soc_component_add(cmpnt); |
4da53393 | 2787 | |
bb13109d | 2788 | return 0; |
4da53393 | 2789 | |
bb13109d LPC |
2790 | err_cleanup: |
2791 | snd_soc_component_cleanup(cmpnt); | |
2792 | err_free: | |
2793 | kfree(cmpnt); | |
2794 | return ret; | |
4da53393 | 2795 | } |
bb13109d | 2796 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 2797 | |
d191bd8d KM |
2798 | /** |
2799 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
2800 | * | |
2801 | */ | |
2802 | void snd_soc_unregister_component(struct device *dev) | |
2803 | { | |
2804 | struct snd_soc_component *cmpnt; | |
2805 | ||
34e81ab4 | 2806 | mutex_lock(&client_mutex); |
d191bd8d | 2807 | list_for_each_entry(cmpnt, &component_list, list) { |
98e639fb | 2808 | if (dev == cmpnt->dev && cmpnt->registered_as_component) |
d191bd8d KM |
2809 | goto found; |
2810 | } | |
34e81ab4 | 2811 | mutex_unlock(&client_mutex); |
d191bd8d KM |
2812 | return; |
2813 | ||
2814 | found: | |
34e81ab4 LPC |
2815 | snd_soc_component_del_unlocked(cmpnt); |
2816 | mutex_unlock(&client_mutex); | |
bb13109d LPC |
2817 | snd_soc_component_cleanup(cmpnt); |
2818 | kfree(cmpnt); | |
d191bd8d KM |
2819 | } |
2820 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 2821 | |
f1d45cc3 | 2822 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
2823 | { |
2824 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 2825 | |
f1d45cc3 | 2826 | return platform->driver->probe(platform); |
e2c330b9 LPC |
2827 | } |
2828 | ||
f1d45cc3 | 2829 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
2830 | { |
2831 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
2832 | ||
f1d45cc3 | 2833 | platform->driver->remove(platform); |
d191bd8d | 2834 | } |
d191bd8d | 2835 | |
12a48a8c | 2836 | /** |
71a45cda LPC |
2837 | * snd_soc_add_platform - Add a platform to the ASoC core |
2838 | * @dev: The parent device for the platform | |
2839 | * @platform: The platform to add | |
2840 | * @platform_driver: The driver for the platform | |
12a48a8c | 2841 | */ |
71a45cda | 2842 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 2843 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 2844 | { |
b37f1d12 LPC |
2845 | int ret; |
2846 | ||
bb13109d LPC |
2847 | ret = snd_soc_component_initialize(&platform->component, |
2848 | &platform_drv->component_driver, dev); | |
2849 | if (ret) | |
2850 | return ret; | |
12a48a8c | 2851 | |
f0fba2ad LG |
2852 | platform->dev = dev; |
2853 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
2854 | |
2855 | if (platform_drv->probe) | |
2856 | platform->component.probe = snd_soc_platform_drv_probe; | |
2857 | if (platform_drv->remove) | |
2858 | platform->component.remove = snd_soc_platform_drv_remove; | |
12a48a8c | 2859 | |
81c7cfd1 LPC |
2860 | #ifdef CONFIG_DEBUG_FS |
2861 | platform->component.debugfs_prefix = "platform"; | |
2862 | #endif | |
12a48a8c MB |
2863 | |
2864 | mutex_lock(&client_mutex); | |
bb13109d | 2865 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
2866 | list_add(&platform->list, &platform_list); |
2867 | mutex_unlock(&client_mutex); | |
2868 | ||
f4333203 LPC |
2869 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
2870 | platform->component.name); | |
12a48a8c MB |
2871 | |
2872 | return 0; | |
2873 | } | |
71a45cda | 2874 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
2875 | |
2876 | /** | |
71a45cda | 2877 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 2878 | * |
71a45cda | 2879 | * @platform: platform to register |
12a48a8c | 2880 | */ |
71a45cda LPC |
2881 | int snd_soc_register_platform(struct device *dev, |
2882 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 2883 | { |
f0fba2ad | 2884 | struct snd_soc_platform *platform; |
71a45cda | 2885 | int ret; |
f0fba2ad | 2886 | |
71a45cda | 2887 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 2888 | |
71a45cda LPC |
2889 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
2890 | if (platform == NULL) | |
2891 | return -ENOMEM; | |
2892 | ||
2893 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
2894 | if (ret) | |
2895 | kfree(platform); | |
2896 | ||
2897 | return ret; | |
2898 | } | |
2899 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2900 | ||
2901 | /** | |
2902 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
2903 | * @platform: the platform to remove | |
2904 | */ | |
2905 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
2906 | { | |
b37f1d12 | 2907 | |
12a48a8c MB |
2908 | mutex_lock(&client_mutex); |
2909 | list_del(&platform->list); | |
bb13109d | 2910 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
2911 | mutex_unlock(&client_mutex); |
2912 | ||
71a45cda | 2913 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 2914 | platform->component.name); |
decc27b0 DM |
2915 | |
2916 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
2917 | } |
2918 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
2919 | ||
2920 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
2921 | { | |
2922 | struct snd_soc_platform *platform; | |
2923 | ||
34e81ab4 | 2924 | mutex_lock(&client_mutex); |
71a45cda | 2925 | list_for_each_entry(platform, &platform_list, list) { |
34e81ab4 LPC |
2926 | if (dev == platform->dev) { |
2927 | mutex_unlock(&client_mutex); | |
71a45cda | 2928 | return platform; |
34e81ab4 | 2929 | } |
71a45cda | 2930 | } |
34e81ab4 | 2931 | mutex_unlock(&client_mutex); |
71a45cda LPC |
2932 | |
2933 | return NULL; | |
2934 | } | |
2935 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
2936 | ||
2937 | /** | |
2938 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2939 | * | |
2940 | * @platform: platform to unregister | |
2941 | */ | |
2942 | void snd_soc_unregister_platform(struct device *dev) | |
2943 | { | |
2944 | struct snd_soc_platform *platform; | |
2945 | ||
2946 | platform = snd_soc_lookup_platform(dev); | |
2947 | if (!platform) | |
2948 | return; | |
2949 | ||
2950 | snd_soc_remove_platform(platform); | |
f0fba2ad | 2951 | kfree(platform); |
12a48a8c MB |
2952 | } |
2953 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2954 | ||
151ab22c MB |
2955 | static u64 codec_format_map[] = { |
2956 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
2957 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
2958 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
2959 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
2960 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
2961 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
2962 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2963 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2964 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
2965 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
2966 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
2967 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
2968 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
2969 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
2970 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
2971 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
2972 | }; | |
2973 | ||
2974 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
2975 | * the endianness of the data but we're using the CPU format | |
2976 | * definitions which do need to include endianness so we ensure that | |
2977 | * codec DAIs always have both big and little endian variants set. | |
2978 | */ | |
2979 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
2980 | { | |
2981 | int i; | |
2982 | ||
2983 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
2984 | if (stream->formats & codec_format_map[i]) | |
2985 | stream->formats |= codec_format_map[i]; | |
2986 | } | |
2987 | ||
f1d45cc3 LPC |
2988 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
2989 | { | |
2990 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2991 | ||
2992 | return codec->driver->probe(codec); | |
2993 | } | |
2994 | ||
2995 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
2996 | { | |
2997 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2998 | ||
2999 | codec->driver->remove(codec); | |
3000 | } | |
3001 | ||
e2c330b9 LPC |
3002 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
3003 | unsigned int reg, unsigned int val) | |
3004 | { | |
3005 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3006 | ||
3007 | return codec->driver->write(codec, reg, val); | |
3008 | } | |
3009 | ||
3010 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
3011 | unsigned int reg, unsigned int *val) | |
3012 | { | |
3013 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3014 | ||
3015 | *val = codec->driver->read(codec, reg); | |
3016 | ||
3017 | return 0; | |
3018 | } | |
3019 | ||
68f831c2 LPC |
3020 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
3021 | enum snd_soc_bias_level level) | |
3022 | { | |
3023 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
3024 | ||
3025 | return codec->driver->set_bias_level(codec, level); | |
3026 | } | |
3027 | ||
0d0cf00a MB |
3028 | /** |
3029 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3030 | * | |
ac11a2b3 | 3031 | * @codec: codec to register |
0d0cf00a | 3032 | */ |
f0fba2ad | 3033 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3034 | const struct snd_soc_codec_driver *codec_drv, |
3035 | struct snd_soc_dai_driver *dai_drv, | |
3036 | int num_dai) | |
0d0cf00a | 3037 | { |
f0fba2ad | 3038 | struct snd_soc_codec *codec; |
bb13109d | 3039 | struct snd_soc_dai *dai; |
f0fba2ad | 3040 | int ret, i; |
151ab22c | 3041 | |
f0fba2ad LG |
3042 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3043 | ||
3044 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3045 | if (codec == NULL) | |
3046 | return -ENOMEM; | |
0d0cf00a | 3047 | |
ce0fc93a | 3048 | codec->component.dapm_ptr = &codec->dapm; |
f1d45cc3 | 3049 | codec->component.codec = codec; |
ce0fc93a | 3050 | |
bb13109d LPC |
3051 | ret = snd_soc_component_initialize(&codec->component, |
3052 | &codec_drv->component_driver, dev); | |
3053 | if (ret) | |
3054 | goto err_free; | |
f0fba2ad | 3055 | |
f1d45cc3 LPC |
3056 | if (codec_drv->controls) { |
3057 | codec->component.controls = codec_drv->controls; | |
3058 | codec->component.num_controls = codec_drv->num_controls; | |
3059 | } | |
3060 | if (codec_drv->dapm_widgets) { | |
3061 | codec->component.dapm_widgets = codec_drv->dapm_widgets; | |
3062 | codec->component.num_dapm_widgets = codec_drv->num_dapm_widgets; | |
3063 | } | |
3064 | if (codec_drv->dapm_routes) { | |
3065 | codec->component.dapm_routes = codec_drv->dapm_routes; | |
3066 | codec->component.num_dapm_routes = codec_drv->num_dapm_routes; | |
3067 | } | |
3068 | ||
3069 | if (codec_drv->probe) | |
3070 | codec->component.probe = snd_soc_codec_drv_probe; | |
3071 | if (codec_drv->remove) | |
3072 | codec->component.remove = snd_soc_codec_drv_remove; | |
e2c330b9 LPC |
3073 | if (codec_drv->write) |
3074 | codec->component.write = snd_soc_codec_drv_write; | |
3075 | if (codec_drv->read) | |
3076 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3077 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
5819c2fa | 3078 | codec->dapm.idle_bias_off = codec_drv->idle_bias_off; |
86dbf2ac | 3079 | codec->dapm.suspend_bias_off = codec_drv->suspend_bias_off; |
14e8bdeb LPC |
3080 | if (codec_drv->seq_notifier) |
3081 | codec->dapm.seq_notifier = codec_drv->seq_notifier; | |
68f831c2 LPC |
3082 | if (codec_drv->set_bias_level) |
3083 | codec->dapm.set_bias_level = snd_soc_codec_set_bias_level; | |
7a30a3db DP |
3084 | codec->dev = dev; |
3085 | codec->driver = codec_drv; | |
e2c330b9 | 3086 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3087 | |
81c7cfd1 LPC |
3088 | #ifdef CONFIG_DEBUG_FS |
3089 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3090 | codec->component.debugfs_prefix = "codec"; | |
3091 | #endif | |
3092 | ||
886f5692 LPC |
3093 | if (codec_drv->get_regmap) |
3094 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3095 | |
f0fba2ad LG |
3096 | for (i = 0; i < num_dai; i++) { |
3097 | fixup_codec_formats(&dai_drv[i].playback); | |
3098 | fixup_codec_formats(&dai_drv[i].capture); | |
3099 | } | |
3100 | ||
bb13109d | 3101 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3102 | if (ret < 0) { |
f42cf8d6 | 3103 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d | 3104 | goto err_cleanup; |
26b01ccd | 3105 | } |
f0fba2ad | 3106 | |
bb13109d LPC |
3107 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3108 | dai->codec = codec; | |
f0fba2ad | 3109 | |
e1328a83 | 3110 | mutex_lock(&client_mutex); |
bb13109d | 3111 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3112 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3113 | mutex_unlock(&client_mutex); |
3114 | ||
f4333203 LPC |
3115 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3116 | codec->component.name); | |
0d0cf00a | 3117 | return 0; |
f0fba2ad | 3118 | |
bb13109d LPC |
3119 | err_cleanup: |
3120 | snd_soc_component_cleanup(&codec->component); | |
3121 | err_free: | |
f0fba2ad LG |
3122 | kfree(codec); |
3123 | return ret; | |
0d0cf00a MB |
3124 | } |
3125 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3126 | ||
3127 | /** | |
3128 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3129 | * | |
ac11a2b3 | 3130 | * @codec: codec to unregister |
0d0cf00a | 3131 | */ |
f0fba2ad | 3132 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3133 | { |
f0fba2ad | 3134 | struct snd_soc_codec *codec; |
f0fba2ad | 3135 | |
34e81ab4 | 3136 | mutex_lock(&client_mutex); |
f0fba2ad LG |
3137 | list_for_each_entry(codec, &codec_list, list) { |
3138 | if (dev == codec->dev) | |
3139 | goto found; | |
3140 | } | |
34e81ab4 | 3141 | mutex_unlock(&client_mutex); |
f0fba2ad LG |
3142 | return; |
3143 | ||
3144 | found: | |
0d0cf00a | 3145 | list_del(&codec->list); |
bb13109d | 3146 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3147 | mutex_unlock(&client_mutex); |
3148 | ||
f4333203 LPC |
3149 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3150 | codec->component.name); | |
f0fba2ad | 3151 | |
bb13109d | 3152 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3153 | snd_soc_cache_exit(codec); |
f0fba2ad | 3154 | kfree(codec); |
0d0cf00a MB |
3155 | } |
3156 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3157 | ||
bec4fa05 SW |
3158 | /* Retrieve a card's name from device tree */ |
3159 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3160 | const char *propname) | |
3161 | { | |
7e07e7c0 | 3162 | struct device_node *np; |
bec4fa05 SW |
3163 | int ret; |
3164 | ||
7e07e7c0 TB |
3165 | if (!card->dev) { |
3166 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3167 | return -EINVAL; | |
3168 | } | |
3169 | ||
3170 | np = card->dev->of_node; | |
3171 | ||
bec4fa05 SW |
3172 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3173 | /* | |
3174 | * EINVAL means the property does not exist. This is fine providing | |
3175 | * card->name was previously set, which is checked later in | |
3176 | * snd_soc_register_card. | |
3177 | */ | |
3178 | if (ret < 0 && ret != -EINVAL) { | |
3179 | dev_err(card->dev, | |
f110bfc7 | 3180 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3181 | propname, ret); |
3182 | return ret; | |
3183 | } | |
3184 | ||
3185 | return 0; | |
3186 | } | |
3187 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3188 | ||
9a6d4860 XL |
3189 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3190 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3191 | SND_SOC_DAPM_LINE("Line", NULL), | |
3192 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3193 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3194 | }; | |
3195 | ||
3196 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, | |
3197 | const char *propname) | |
3198 | { | |
3199 | struct device_node *np = card->dev->of_node; | |
3200 | struct snd_soc_dapm_widget *widgets; | |
3201 | const char *template, *wname; | |
3202 | int i, j, num_widgets, ret; | |
3203 | ||
3204 | num_widgets = of_property_count_strings(np, propname); | |
3205 | if (num_widgets < 0) { | |
3206 | dev_err(card->dev, | |
3207 | "ASoC: Property '%s' does not exist\n", propname); | |
3208 | return -EINVAL; | |
3209 | } | |
3210 | if (num_widgets & 1) { | |
3211 | dev_err(card->dev, | |
3212 | "ASoC: Property '%s' length is not even\n", propname); | |
3213 | return -EINVAL; | |
3214 | } | |
3215 | ||
3216 | num_widgets /= 2; | |
3217 | if (!num_widgets) { | |
3218 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3219 | propname); | |
3220 | return -EINVAL; | |
3221 | } | |
3222 | ||
3223 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3224 | GFP_KERNEL); | |
3225 | if (!widgets) { | |
3226 | dev_err(card->dev, | |
3227 | "ASoC: Could not allocate memory for widgets\n"); | |
3228 | return -ENOMEM; | |
3229 | } | |
3230 | ||
3231 | for (i = 0; i < num_widgets; i++) { | |
3232 | ret = of_property_read_string_index(np, propname, | |
3233 | 2 * i, &template); | |
3234 | if (ret) { | |
3235 | dev_err(card->dev, | |
3236 | "ASoC: Property '%s' index %d read error:%d\n", | |
3237 | propname, 2 * i, ret); | |
3238 | return -EINVAL; | |
3239 | } | |
3240 | ||
3241 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3242 | if (!strncmp(template, simple_widgets[j].name, | |
3243 | strlen(simple_widgets[j].name))) { | |
3244 | widgets[i] = simple_widgets[j]; | |
3245 | break; | |
3246 | } | |
3247 | } | |
3248 | ||
3249 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3250 | dev_err(card->dev, | |
3251 | "ASoC: DAPM widget '%s' is not supported\n", | |
3252 | template); | |
3253 | return -EINVAL; | |
3254 | } | |
3255 | ||
3256 | ret = of_property_read_string_index(np, propname, | |
3257 | (2 * i) + 1, | |
3258 | &wname); | |
3259 | if (ret) { | |
3260 | dev_err(card->dev, | |
3261 | "ASoC: Property '%s' index %d read error:%d\n", | |
3262 | propname, (2 * i) + 1, ret); | |
3263 | return -EINVAL; | |
3264 | } | |
3265 | ||
3266 | widgets[i].name = wname; | |
3267 | } | |
3268 | ||
f23e860e NC |
3269 | card->of_dapm_widgets = widgets; |
3270 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
3271 | |
3272 | return 0; | |
3273 | } | |
3274 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); | |
3275 | ||
89c67857 XL |
3276 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
3277 | unsigned int *slots, | |
3278 | unsigned int *slot_width) | |
3279 | { | |
3280 | u32 val; | |
3281 | int ret; | |
3282 | ||
3283 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { | |
3284 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3285 | if (ret) | |
3286 | return ret; | |
3287 | ||
3288 | if (slots) | |
3289 | *slots = val; | |
3290 | } | |
3291 | ||
3292 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3293 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3294 | if (ret) | |
3295 | return ret; | |
3296 | ||
3297 | if (slot_width) | |
3298 | *slot_width = val; | |
3299 | } | |
3300 | ||
3301 | return 0; | |
3302 | } | |
3303 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3304 | ||
a4a54dd5 SW |
3305 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3306 | const char *propname) | |
3307 | { | |
3308 | struct device_node *np = card->dev->of_node; | |
e3b1e6a1 | 3309 | int num_routes; |
a4a54dd5 SW |
3310 | struct snd_soc_dapm_route *routes; |
3311 | int i, ret; | |
3312 | ||
3313 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3314 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3315 | dev_err(card->dev, |
3316 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3317 | propname); | |
a4a54dd5 SW |
3318 | return -EINVAL; |
3319 | } | |
3320 | num_routes /= 2; | |
3321 | if (!num_routes) { | |
f110bfc7 | 3322 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3323 | propname); |
3324 | return -EINVAL; | |
3325 | } | |
3326 | ||
e3b1e6a1 | 3327 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3328 | GFP_KERNEL); |
3329 | if (!routes) { | |
3330 | dev_err(card->dev, | |
f110bfc7 | 3331 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3332 | return -EINVAL; |
3333 | } | |
3334 | ||
3335 | for (i = 0; i < num_routes; i++) { | |
3336 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3337 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3338 | if (ret) { |
c871bd0b MB |
3339 | dev_err(card->dev, |
3340 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3341 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3342 | return -EINVAL; |
3343 | } | |
3344 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3345 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3346 | if (ret) { |
3347 | dev_err(card->dev, | |
c871bd0b MB |
3348 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3349 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3350 | return -EINVAL; |
3351 | } | |
3352 | } | |
3353 | ||
f23e860e NC |
3354 | card->num_of_dapm_routes = num_routes; |
3355 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
3356 | |
3357 | return 0; | |
3358 | } | |
3359 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3360 | ||
a7930ed4 | 3361 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3362 | const char *prefix, |
3363 | struct device_node **bitclkmaster, | |
3364 | struct device_node **framemaster) | |
a7930ed4 KM |
3365 | { |
3366 | int ret, i; | |
3367 | char prop[128]; | |
3368 | unsigned int format = 0; | |
3369 | int bit, frame; | |
3370 | const char *str; | |
3371 | struct { | |
3372 | char *name; | |
3373 | unsigned int val; | |
3374 | } of_fmt_table[] = { | |
3375 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3376 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3377 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3378 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3379 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3380 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3381 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3382 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3383 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3384 | }; |
3385 | ||
3386 | if (!prefix) | |
3387 | prefix = ""; | |
3388 | ||
3389 | /* | |
3390 | * check "[prefix]format = xxx" | |
3391 | * SND_SOC_DAIFMT_FORMAT_MASK area | |
3392 | */ | |
3393 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3394 | ret = of_property_read_string(np, prop, &str); | |
3395 | if (ret == 0) { | |
3396 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3397 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3398 | format |= of_fmt_table[i].val; | |
3399 | break; | |
3400 | } | |
3401 | } | |
3402 | } | |
3403 | ||
3404 | /* | |
8c2d6a9f | 3405 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3406 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3407 | */ | |
8c2d6a9f KM |
3408 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
3409 | if (of_get_property(np, prop, NULL)) | |
3410 | format |= SND_SOC_DAIFMT_CONT; | |
3411 | else | |
3412 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3413 | |
3414 | /* | |
3415 | * check "[prefix]bitclock-inversion" | |
3416 | * check "[prefix]frame-inversion" | |
3417 | * SND_SOC_DAIFMT_INV_MASK area | |
3418 | */ | |
3419 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3420 | bit = !!of_get_property(np, prop, NULL); | |
3421 | ||
3422 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3423 | frame = !!of_get_property(np, prop, NULL); | |
3424 | ||
3425 | switch ((bit << 4) + frame) { | |
3426 | case 0x11: | |
3427 | format |= SND_SOC_DAIFMT_IB_IF; | |
3428 | break; | |
3429 | case 0x10: | |
3430 | format |= SND_SOC_DAIFMT_IB_NF; | |
3431 | break; | |
3432 | case 0x01: | |
3433 | format |= SND_SOC_DAIFMT_NB_IF; | |
3434 | break; | |
3435 | default: | |
3436 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
3437 | break; | |
3438 | } | |
3439 | ||
3440 | /* | |
3441 | * check "[prefix]bitclock-master" | |
3442 | * check "[prefix]frame-master" | |
3443 | * SND_SOC_DAIFMT_MASTER_MASK area | |
3444 | */ | |
3445 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
3446 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3447 | if (bit && bitclkmaster) |
3448 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3449 | |
3450 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
3451 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3452 | if (frame && framemaster) |
3453 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3454 | |
3455 | switch ((bit << 4) + frame) { | |
3456 | case 0x11: | |
3457 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
3458 | break; | |
3459 | case 0x10: | |
3460 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
3461 | break; | |
3462 | case 0x01: | |
3463 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
3464 | break; | |
3465 | default: | |
3466 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
3467 | break; | |
3468 | } | |
3469 | ||
3470 | return format; | |
3471 | } | |
3472 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
3473 | ||
93b0f3ee JFM |
3474 | static int snd_soc_get_dai_name(struct of_phandle_args *args, |
3475 | const char **dai_name) | |
cb470087 KM |
3476 | { |
3477 | struct snd_soc_component *pos; | |
93b0f3ee | 3478 | int ret = -EPROBE_DEFER; |
cb470087 KM |
3479 | |
3480 | mutex_lock(&client_mutex); | |
3481 | list_for_each_entry(pos, &component_list, list) { | |
93b0f3ee | 3482 | if (pos->dev->of_node != args->np) |
cb470087 KM |
3483 | continue; |
3484 | ||
6833c452 | 3485 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
3486 | ret = pos->driver->of_xlate_dai_name(pos, |
3487 | args, | |
3488 | dai_name); | |
6833c452 KM |
3489 | } else { |
3490 | int id = -1; | |
3491 | ||
93b0f3ee | 3492 | switch (args->args_count) { |
6833c452 KM |
3493 | case 0: |
3494 | id = 0; /* same as dai_drv[0] */ | |
3495 | break; | |
3496 | case 1: | |
93b0f3ee | 3497 | id = args->args[0]; |
6833c452 KM |
3498 | break; |
3499 | default: | |
3500 | /* not supported */ | |
3501 | break; | |
3502 | } | |
3503 | ||
3504 | if (id < 0 || id >= pos->num_dai) { | |
3505 | ret = -EINVAL; | |
3dcba280 | 3506 | continue; |
6833c452 | 3507 | } |
e41975ed XL |
3508 | |
3509 | ret = 0; | |
3510 | ||
3511 | *dai_name = pos->dai_drv[id].name; | |
3512 | if (!*dai_name) | |
3513 | *dai_name = pos->name; | |
cb470087 KM |
3514 | } |
3515 | ||
cb470087 KM |
3516 | break; |
3517 | } | |
3518 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3519 | return ret; |
3520 | } | |
3521 | ||
3522 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3523 | const char **dai_name) | |
3524 | { | |
3525 | struct of_phandle_args args; | |
3526 | int ret; | |
3527 | ||
3528 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3529 | "#sound-dai-cells", 0, &args); | |
3530 | if (ret) | |
3531 | return ret; | |
3532 | ||
3533 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3534 | |
3535 | of_node_put(args.np); | |
3536 | ||
3537 | return ret; | |
3538 | } | |
3539 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3540 | ||
93b0f3ee JFM |
3541 | /* |
3542 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3543 | * @dev: Card device | |
3544 | * @of_node: Device node | |
3545 | * @dai_link: DAI link | |
3546 | * | |
3547 | * Builds an array of CODEC DAI components from the DAI link property | |
3548 | * 'sound-dai'. | |
3549 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
3550 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
3551 | * | |
3552 | * Returns 0 for success | |
3553 | */ | |
3554 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3555 | struct device_node *of_node, | |
3556 | struct snd_soc_dai_link *dai_link) | |
3557 | { | |
3558 | struct of_phandle_args args; | |
3559 | struct snd_soc_dai_link_component *component; | |
3560 | char *name; | |
3561 | int index, num_codecs, ret; | |
3562 | ||
3563 | /* Count the number of CODECs */ | |
3564 | name = "sound-dai"; | |
3565 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3566 | "#sound-dai-cells"); | |
3567 | if (num_codecs <= 0) { | |
3568 | if (num_codecs == -ENOENT) | |
3569 | dev_err(dev, "No 'sound-dai' property\n"); | |
3570 | else | |
3571 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3572 | return num_codecs; | |
3573 | } | |
3574 | component = devm_kzalloc(dev, | |
3575 | sizeof *component * num_codecs, | |
3576 | GFP_KERNEL); | |
3577 | if (!component) | |
3578 | return -ENOMEM; | |
3579 | dai_link->codecs = component; | |
3580 | dai_link->num_codecs = num_codecs; | |
3581 | ||
3582 | /* Parse the list */ | |
3583 | for (index = 0, component = dai_link->codecs; | |
3584 | index < dai_link->num_codecs; | |
3585 | index++, component++) { | |
3586 | ret = of_parse_phandle_with_args(of_node, name, | |
3587 | "#sound-dai-cells", | |
3588 | index, &args); | |
3589 | if (ret) | |
3590 | goto err; | |
3591 | component->of_node = args.np; | |
3592 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3593 | if (ret < 0) | |
3594 | goto err; | |
3595 | } | |
3596 | return 0; | |
3597 | err: | |
3598 | for (index = 0, component = dai_link->codecs; | |
3599 | index < dai_link->num_codecs; | |
3600 | index++, component++) { | |
3601 | if (!component->of_node) | |
3602 | break; | |
3603 | of_node_put(component->of_node); | |
3604 | component->of_node = NULL; | |
3605 | } | |
3606 | dai_link->codecs = NULL; | |
3607 | dai_link->num_codecs = 0; | |
3608 | return ret; | |
3609 | } | |
3610 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3611 | ||
c9b3a40f | 3612 | static int __init snd_soc_init(void) |
db2a4165 | 3613 | { |
6553bf06 | 3614 | snd_soc_debugfs_init(); |
fb257897 MB |
3615 | snd_soc_util_init(); |
3616 | ||
db2a4165 FM |
3617 | return platform_driver_register(&soc_driver); |
3618 | } | |
4abe8e16 | 3619 | module_init(snd_soc_init); |
db2a4165 | 3620 | |
7d8c16a6 | 3621 | static void __exit snd_soc_exit(void) |
db2a4165 | 3622 | { |
fb257897 | 3623 | snd_soc_util_exit(); |
6553bf06 | 3624 | snd_soc_debugfs_exit(); |
fb257897 | 3625 | |
384c89e2 | 3626 | #ifdef CONFIG_DEBUG_FS |
384c89e2 | 3627 | #endif |
3ff3f64b | 3628 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3629 | } |
db2a4165 FM |
3630 | module_exit(snd_soc_exit); |
3631 | ||
3632 | /* Module information */ | |
d331124d | 3633 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3634 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3635 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3636 | MODULE_ALIAS("platform:soc-audio"); |