Commit | Line | Data |
---|---|---|
db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
741a509f | 33 | #include <linux/pinctrl/consumer.h> |
f0e8ed85 | 34 | #include <linux/ctype.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
bec4fa05 | 36 | #include <linux/of.h> |
db2a4165 | 37 | #include <sound/core.h> |
3028eb8c | 38 | #include <sound/jack.h> |
db2a4165 FM |
39 | #include <sound/pcm.h> |
40 | #include <sound/pcm_params.h> | |
41 | #include <sound/soc.h> | |
01d7584c | 42 | #include <sound/soc-dpcm.h> |
8a978234 | 43 | #include <sound/soc-topology.h> |
db2a4165 FM |
44 | #include <sound/initval.h> |
45 | ||
a8b1d34f MB |
46 | #define CREATE_TRACE_POINTS |
47 | #include <trace/events/asoc.h> | |
48 | ||
f0fba2ad LG |
49 | #define NAME_SIZE 32 |
50 | ||
384c89e2 | 51 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
52 | struct dentry *snd_soc_debugfs_root; |
53 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
54 | #endif |
55 | ||
c5af3a2e | 56 | static DEFINE_MUTEX(client_mutex); |
12a48a8c | 57 | static LIST_HEAD(platform_list); |
0d0cf00a | 58 | static LIST_HEAD(codec_list); |
030e79f6 | 59 | static LIST_HEAD(component_list); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
2bc9a81e DP |
70 | /* returns the minimum number of bytes needed to represent |
71 | * a particular given value */ | |
72 | static int min_bytes_needed(unsigned long val) | |
73 | { | |
74 | int c = 0; | |
75 | int i; | |
76 | ||
77 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
78 | if (val & (1UL << i)) | |
79 | break; | |
80 | c = (sizeof val * 8) - c; | |
81 | if (!c || (c % 8)) | |
82 | c = (c + 8) / 8; | |
83 | else | |
84 | c /= 8; | |
85 | return c; | |
86 | } | |
87 | ||
13fd179f DP |
88 | /* fill buf which is 'len' bytes with a formatted |
89 | * string of the form 'reg: value\n' */ | |
90 | static int format_register_str(struct snd_soc_codec *codec, | |
91 | unsigned int reg, char *buf, size_t len) | |
92 | { | |
00b317a4 SW |
93 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
94 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f | 95 | int ret; |
13fd179f DP |
96 | |
97 | /* +2 for ': ' and + 1 for '\n' */ | |
98 | if (wordsize + regsize + 2 + 1 != len) | |
99 | return -EINVAL; | |
100 | ||
d6b6c2ca TI |
101 | sprintf(buf, "%.*x: ", wordsize, reg); |
102 | buf += wordsize + 2; | |
13fd179f | 103 | |
d6b6c2ca TI |
104 | ret = snd_soc_read(codec, reg); |
105 | if (ret < 0) | |
106 | memset(buf, 'X', regsize); | |
107 | else | |
108 | sprintf(buf, "%.*x", regsize, ret); | |
109 | buf[regsize] = '\n'; | |
110 | /* no NUL-termination needed */ | |
13fd179f DP |
111 | return 0; |
112 | } | |
113 | ||
2624d5fa | 114 | /* codec register dump */ |
13fd179f DP |
115 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
116 | size_t count, loff_t pos) | |
2624d5fa | 117 | { |
13fd179f | 118 | int i, step = 1; |
2bc9a81e | 119 | int wordsize, regsize; |
13fd179f DP |
120 | int len; |
121 | size_t total = 0; | |
122 | loff_t p = 0; | |
2bc9a81e | 123 | |
00b317a4 SW |
124 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
125 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 126 | |
13fd179f DP |
127 | len = wordsize + regsize + 2 + 1; |
128 | ||
f0fba2ad | 129 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
130 | return 0; |
131 | ||
f0fba2ad LG |
132 | if (codec->driver->reg_cache_step) |
133 | step = codec->driver->reg_cache_step; | |
2624d5fa | 134 | |
f0fba2ad | 135 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
20a0ec27 LPC |
136 | /* only support larger than PAGE_SIZE bytes debugfs |
137 | * entries for the default case */ | |
138 | if (p >= pos) { | |
139 | if (total + len >= count - 1) | |
140 | break; | |
141 | format_register_str(codec, i, buf + total, len); | |
142 | total += len; | |
5164d74d | 143 | } |
20a0ec27 | 144 | p += len; |
2624d5fa MB |
145 | } |
146 | ||
13fd179f | 147 | total = min(total, count - 1); |
2624d5fa | 148 | |
13fd179f | 149 | return total; |
2624d5fa | 150 | } |
13fd179f | 151 | |
2624d5fa MB |
152 | static ssize_t codec_reg_show(struct device *dev, |
153 | struct device_attribute *attr, char *buf) | |
154 | { | |
36ae1a96 | 155 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 156 | |
13fd179f | 157 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
158 | } |
159 | ||
160 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
161 | ||
dbe21408 MB |
162 | static ssize_t pmdown_time_show(struct device *dev, |
163 | struct device_attribute *attr, char *buf) | |
164 | { | |
36ae1a96 | 165 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 166 | |
f0fba2ad | 167 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
168 | } |
169 | ||
170 | static ssize_t pmdown_time_set(struct device *dev, | |
171 | struct device_attribute *attr, | |
172 | const char *buf, size_t count) | |
173 | { | |
36ae1a96 | 174 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 175 | int ret; |
dbe21408 | 176 | |
b785a492 | 177 | ret = kstrtol(buf, 10, &rtd->pmdown_time); |
c593b520 MB |
178 | if (ret) |
179 | return ret; | |
dbe21408 MB |
180 | |
181 | return count; | |
182 | } | |
183 | ||
184 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
185 | ||
d29697dc TI |
186 | static struct attribute *soc_dev_attrs[] = { |
187 | &dev_attr_codec_reg.attr, | |
188 | &dev_attr_pmdown_time.attr, | |
189 | NULL | |
190 | }; | |
191 | ||
192 | static umode_t soc_dev_attr_is_visible(struct kobject *kobj, | |
193 | struct attribute *attr, int idx) | |
194 | { | |
195 | struct device *dev = kobj_to_dev(kobj); | |
196 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
197 | ||
198 | if (attr == &dev_attr_pmdown_time.attr) | |
199 | return attr->mode; /* always visible */ | |
200 | return rtd->codec ? attr->mode : 0; /* enabled only with codec */ | |
201 | } | |
202 | ||
203 | static const struct attribute_group soc_dapm_dev_group = { | |
204 | .attrs = soc_dapm_dev_attrs, | |
205 | .is_visible = soc_dev_attr_is_visible, | |
206 | }; | |
207 | ||
208 | static const struct attribute_group soc_dev_roup = { | |
209 | .attrs = soc_dev_attrs, | |
210 | .is_visible = soc_dev_attr_is_visible, | |
211 | }; | |
212 | ||
213 | static const struct attribute_group *soc_dev_attr_groups[] = { | |
214 | &soc_dapm_dev_group, | |
215 | &soc_dev_roup, | |
216 | NULL | |
217 | }; | |
218 | ||
2624d5fa | 219 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 220 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 221 | size_t count, loff_t *ppos) |
2624d5fa MB |
222 | { |
223 | ssize_t ret; | |
224 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
225 | char *buf; |
226 | ||
227 | if (*ppos < 0 || !count) | |
228 | return -EINVAL; | |
229 | ||
230 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
231 | if (!buf) |
232 | return -ENOMEM; | |
13fd179f DP |
233 | |
234 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
235 | if (ret >= 0) { | |
236 | if (copy_to_user(user_buf, buf, ret)) { | |
237 | kfree(buf); | |
238 | return -EFAULT; | |
239 | } | |
240 | *ppos += ret; | |
241 | } | |
242 | ||
2624d5fa MB |
243 | kfree(buf); |
244 | return ret; | |
245 | } | |
246 | ||
247 | static ssize_t codec_reg_write_file(struct file *file, | |
248 | const char __user *user_buf, size_t count, loff_t *ppos) | |
249 | { | |
250 | char buf[32]; | |
34e268d8 | 251 | size_t buf_size; |
2624d5fa MB |
252 | char *start = buf; |
253 | unsigned long reg, value; | |
2624d5fa | 254 | struct snd_soc_codec *codec = file->private_data; |
b785a492 | 255 | int ret; |
2624d5fa MB |
256 | |
257 | buf_size = min(count, (sizeof(buf)-1)); | |
258 | if (copy_from_user(buf, user_buf, buf_size)) | |
259 | return -EFAULT; | |
260 | buf[buf_size] = 0; | |
2624d5fa MB |
261 | |
262 | while (*start == ' ') | |
263 | start++; | |
264 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
265 | while (*start == ' ') |
266 | start++; | |
b785a492 JH |
267 | ret = kstrtoul(start, 16, &value); |
268 | if (ret) | |
269 | return ret; | |
0d51a9cb MB |
270 | |
271 | /* Userspace has been fiddling around behind the kernel's back */ | |
373d4d09 | 272 | add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE); |
0d51a9cb | 273 | |
e4f078d8 | 274 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
275 | return buf_size; |
276 | } | |
277 | ||
278 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 279 | .open = simple_open, |
2624d5fa MB |
280 | .read = codec_reg_read_file, |
281 | .write = codec_reg_write_file, | |
6038f373 | 282 | .llseek = default_llseek, |
2624d5fa MB |
283 | }; |
284 | ||
81c7cfd1 | 285 | static void soc_init_component_debugfs(struct snd_soc_component *component) |
e73f3de5 | 286 | { |
6553bf06 LPC |
287 | if (!component->card->debugfs_card_root) |
288 | return; | |
289 | ||
81c7cfd1 LPC |
290 | if (component->debugfs_prefix) { |
291 | char *name; | |
e73f3de5 | 292 | |
81c7cfd1 LPC |
293 | name = kasprintf(GFP_KERNEL, "%s:%s", |
294 | component->debugfs_prefix, component->name); | |
295 | if (name) { | |
296 | component->debugfs_root = debugfs_create_dir(name, | |
297 | component->card->debugfs_card_root); | |
298 | kfree(name); | |
299 | } | |
300 | } else { | |
301 | component->debugfs_root = debugfs_create_dir(component->name, | |
302 | component->card->debugfs_card_root); | |
303 | } | |
e73f3de5 | 304 | |
81c7cfd1 LPC |
305 | if (!component->debugfs_root) { |
306 | dev_warn(component->dev, | |
307 | "ASoC: Failed to create component debugfs directory\n"); | |
308 | return; | |
309 | } | |
e73f3de5 | 310 | |
81c7cfd1 LPC |
311 | snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), |
312 | component->debugfs_root); | |
e73f3de5 | 313 | |
81c7cfd1 LPC |
314 | if (component->init_debugfs) |
315 | component->init_debugfs(component); | |
e73f3de5 RK |
316 | } |
317 | ||
81c7cfd1 | 318 | static void soc_cleanup_component_debugfs(struct snd_soc_component *component) |
2624d5fa | 319 | { |
81c7cfd1 LPC |
320 | debugfs_remove_recursive(component->debugfs_root); |
321 | } | |
d6ce4cf3 | 322 | |
81c7cfd1 LPC |
323 | static void soc_init_codec_debugfs(struct snd_soc_component *component) |
324 | { | |
325 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
2624d5fa MB |
326 | |
327 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
81c7cfd1 | 328 | codec->component.debugfs_root, |
2624d5fa MB |
329 | codec, &codec_reg_fops); |
330 | if (!codec->debugfs_reg) | |
10e8aa9a MM |
331 | dev_warn(codec->dev, |
332 | "ASoC: Failed to create codec register debugfs file\n"); | |
731f1ab2 SG |
333 | } |
334 | ||
c3c5a19a MB |
335 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
336 | size_t count, loff_t *ppos) | |
337 | { | |
338 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 339 | ssize_t len, ret = 0; |
c3c5a19a MB |
340 | struct snd_soc_codec *codec; |
341 | ||
342 | if (!buf) | |
343 | return -ENOMEM; | |
344 | ||
34e81ab4 LPC |
345 | mutex_lock(&client_mutex); |
346 | ||
2b194f9d MB |
347 | list_for_each_entry(codec, &codec_list, list) { |
348 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 349 | codec->component.name); |
2b194f9d MB |
350 | if (len >= 0) |
351 | ret += len; | |
352 | if (ret > PAGE_SIZE) { | |
353 | ret = PAGE_SIZE; | |
354 | break; | |
355 | } | |
356 | } | |
c3c5a19a | 357 | |
34e81ab4 LPC |
358 | mutex_unlock(&client_mutex); |
359 | ||
c3c5a19a MB |
360 | if (ret >= 0) |
361 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
362 | ||
363 | kfree(buf); | |
364 | ||
365 | return ret; | |
366 | } | |
367 | ||
368 | static const struct file_operations codec_list_fops = { | |
369 | .read = codec_list_read_file, | |
370 | .llseek = default_llseek,/* read accesses f_pos */ | |
371 | }; | |
372 | ||
f3208780 MB |
373 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
374 | size_t count, loff_t *ppos) | |
375 | { | |
376 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 377 | ssize_t len, ret = 0; |
1438c2f6 | 378 | struct snd_soc_component *component; |
f3208780 MB |
379 | struct snd_soc_dai *dai; |
380 | ||
381 | if (!buf) | |
382 | return -ENOMEM; | |
383 | ||
34e81ab4 LPC |
384 | mutex_lock(&client_mutex); |
385 | ||
1438c2f6 LPC |
386 | list_for_each_entry(component, &component_list, list) { |
387 | list_for_each_entry(dai, &component->dai_list, list) { | |
388 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
389 | dai->name); | |
390 | if (len >= 0) | |
391 | ret += len; | |
392 | if (ret > PAGE_SIZE) { | |
393 | ret = PAGE_SIZE; | |
394 | break; | |
395 | } | |
2b194f9d MB |
396 | } |
397 | } | |
f3208780 | 398 | |
34e81ab4 LPC |
399 | mutex_unlock(&client_mutex); |
400 | ||
2b194f9d | 401 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
402 | |
403 | kfree(buf); | |
404 | ||
405 | return ret; | |
406 | } | |
407 | ||
408 | static const struct file_operations dai_list_fops = { | |
409 | .read = dai_list_read_file, | |
410 | .llseek = default_llseek,/* read accesses f_pos */ | |
411 | }; | |
412 | ||
19c7ac27 MB |
413 | static ssize_t platform_list_read_file(struct file *file, |
414 | char __user *user_buf, | |
415 | size_t count, loff_t *ppos) | |
416 | { | |
417 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 418 | ssize_t len, ret = 0; |
19c7ac27 MB |
419 | struct snd_soc_platform *platform; |
420 | ||
421 | if (!buf) | |
422 | return -ENOMEM; | |
423 | ||
34e81ab4 LPC |
424 | mutex_lock(&client_mutex); |
425 | ||
2b194f9d MB |
426 | list_for_each_entry(platform, &platform_list, list) { |
427 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
f4333203 | 428 | platform->component.name); |
2b194f9d MB |
429 | if (len >= 0) |
430 | ret += len; | |
431 | if (ret > PAGE_SIZE) { | |
432 | ret = PAGE_SIZE; | |
433 | break; | |
434 | } | |
435 | } | |
19c7ac27 | 436 | |
34e81ab4 LPC |
437 | mutex_unlock(&client_mutex); |
438 | ||
2b194f9d | 439 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
440 | |
441 | kfree(buf); | |
442 | ||
443 | return ret; | |
444 | } | |
445 | ||
446 | static const struct file_operations platform_list_fops = { | |
447 | .read = platform_list_read_file, | |
448 | .llseek = default_llseek,/* read accesses f_pos */ | |
449 | }; | |
450 | ||
a6052154 JN |
451 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
452 | { | |
6553bf06 LPC |
453 | if (!snd_soc_debugfs_root) |
454 | return; | |
455 | ||
a6052154 | 456 | card->debugfs_card_root = debugfs_create_dir(card->name, |
8a9dab1a | 457 | snd_soc_debugfs_root); |
3a45b867 | 458 | if (!card->debugfs_card_root) { |
a6052154 | 459 | dev_warn(card->dev, |
7c08be84 | 460 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
461 | return; |
462 | } | |
463 | ||
464 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
465 | card->debugfs_card_root, | |
466 | &card->pop_time); | |
467 | if (!card->debugfs_pop_time) | |
468 | dev_warn(card->dev, | |
f110bfc7 | 469 | "ASoC: Failed to create pop time debugfs file\n"); |
a6052154 JN |
470 | } |
471 | ||
472 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
473 | { | |
474 | debugfs_remove_recursive(card->debugfs_card_root); | |
475 | } | |
476 | ||
6553bf06 LPC |
477 | |
478 | static void snd_soc_debugfs_init(void) | |
479 | { | |
480 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); | |
481 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
482 | pr_warn("ASoC: Failed to create debugfs directory\n"); | |
483 | snd_soc_debugfs_root = NULL; | |
484 | return; | |
485 | } | |
486 | ||
487 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, | |
488 | &codec_list_fops)) | |
489 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
490 | ||
491 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, | |
492 | &dai_list_fops)) | |
493 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
494 | ||
495 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, | |
496 | &platform_list_fops)) | |
497 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
498 | } | |
499 | ||
500 | static void snd_soc_debugfs_exit(void) | |
501 | { | |
502 | debugfs_remove_recursive(snd_soc_debugfs_root); | |
503 | } | |
504 | ||
2624d5fa MB |
505 | #else |
506 | ||
81c7cfd1 | 507 | #define soc_init_codec_debugfs NULL |
b95fccbc | 508 | |
81c7cfd1 LPC |
509 | static inline void soc_init_component_debugfs( |
510 | struct snd_soc_component *component) | |
731f1ab2 SG |
511 | { |
512 | } | |
513 | ||
81c7cfd1 LPC |
514 | static inline void soc_cleanup_component_debugfs( |
515 | struct snd_soc_component *component) | |
731f1ab2 SG |
516 | { |
517 | } | |
518 | ||
b95fccbc AL |
519 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
520 | { | |
521 | } | |
522 | ||
523 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
524 | { | |
525 | } | |
6553bf06 LPC |
526 | |
527 | static inline void snd_soc_debugfs_init(void) | |
528 | { | |
529 | } | |
530 | ||
531 | static inline void snd_soc_debugfs_exit(void) | |
532 | { | |
533 | } | |
534 | ||
2624d5fa MB |
535 | #endif |
536 | ||
47c88fff LG |
537 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
538 | const char *dai_link, int stream) | |
539 | { | |
540 | int i; | |
541 | ||
542 | for (i = 0; i < card->num_links; i++) { | |
543 | if (card->rtd[i].dai_link->no_pcm && | |
544 | !strcmp(card->rtd[i].dai_link->name, dai_link)) | |
545 | return card->rtd[i].pcm->streams[stream].substream; | |
546 | } | |
f110bfc7 | 547 | dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); |
47c88fff LG |
548 | return NULL; |
549 | } | |
550 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
551 | ||
552 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, | |
553 | const char *dai_link) | |
554 | { | |
555 | int i; | |
556 | ||
557 | for (i = 0; i < card->num_links; i++) { | |
558 | if (!strcmp(card->rtd[i].dai_link->name, dai_link)) | |
559 | return &card->rtd[i]; | |
560 | } | |
f110bfc7 | 561 | dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); |
47c88fff LG |
562 | return NULL; |
563 | } | |
564 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
565 | ||
9d58a077 RF |
566 | static void codec2codec_close_delayed_work(struct work_struct *work) |
567 | { | |
568 | /* Currently nothing to do for c2c links | |
569 | * Since c2c links are internal nodes in the DAPM graph and | |
570 | * don't interface with the outside world or application layer | |
571 | * we don't have to do any special handling on close. | |
572 | */ | |
573 | } | |
574 | ||
6f8ab4ac | 575 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 576 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 577 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 578 | { |
6f8ab4ac | 579 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 580 | struct snd_soc_codec *codec; |
88bd870f | 581 | int i, j; |
db2a4165 | 582 | |
c5599b87 LPC |
583 | /* If the card is not initialized yet there is nothing to do */ |
584 | if (!card->instantiated) | |
e3509ff0 DM |
585 | return 0; |
586 | ||
6ed25978 AG |
587 | /* Due to the resume being scheduled into a workqueue we could |
588 | * suspend before that's finished - wait for it to complete. | |
589 | */ | |
f0fba2ad LG |
590 | snd_power_lock(card->snd_card); |
591 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
592 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
593 | |
594 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 595 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 596 | |
a00f90f9 | 597 | /* mute any active DACs */ |
f0fba2ad | 598 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 599 | |
f0fba2ad | 600 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
601 | continue; |
602 | ||
88bd870f BC |
603 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
604 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
605 | struct snd_soc_dai_driver *drv = dai->driver; | |
606 | ||
607 | if (drv->ops->digital_mute && dai->playback_active) | |
608 | drv->ops->digital_mute(dai, 1); | |
609 | } | |
db2a4165 FM |
610 | } |
611 | ||
4ccab3e7 | 612 | /* suspend all pcms */ |
f0fba2ad LG |
613 | for (i = 0; i < card->num_rtd; i++) { |
614 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
615 | continue; |
616 | ||
f0fba2ad | 617 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 618 | } |
4ccab3e7 | 619 | |
87506549 | 620 | if (card->suspend_pre) |
70b2ac12 | 621 | card->suspend_pre(card); |
db2a4165 | 622 | |
f0fba2ad LG |
623 | for (i = 0; i < card->num_rtd; i++) { |
624 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 625 | |
f0fba2ad | 626 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
627 | continue; |
628 | ||
bc263214 | 629 | if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) |
f0fba2ad | 630 | cpu_dai->driver->suspend(cpu_dai); |
db2a4165 FM |
631 | } |
632 | ||
37660b6d LPC |
633 | /* close any waiting streams */ |
634 | for (i = 0; i < card->num_rtd; i++) | |
43829731 | 635 | flush_delayed_work(&card->rtd[i].delayed_work); |
db2a4165 | 636 | |
f0fba2ad | 637 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 638 | |
f0fba2ad | 639 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
640 | continue; |
641 | ||
7bd3a6f3 MB |
642 | snd_soc_dapm_stream_event(&card->rtd[i], |
643 | SNDRV_PCM_STREAM_PLAYBACK, | |
7bd3a6f3 | 644 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 645 | |
7bd3a6f3 MB |
646 | snd_soc_dapm_stream_event(&card->rtd[i], |
647 | SNDRV_PCM_STREAM_CAPTURE, | |
7bd3a6f3 | 648 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
649 | } |
650 | ||
8be4da29 LPC |
651 | /* Recheck all endpoints too, their state is affected by suspend */ |
652 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 MB |
653 | snd_soc_dapm_sync(&card->dapm); |
654 | ||
f0fba2ad | 655 | /* suspend all CODECs */ |
2eea392d | 656 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
4890140f LPC |
657 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); |
658 | ||
f0fba2ad LG |
659 | /* If there are paths active then the CODEC will be held with |
660 | * bias _ON and should not be suspended. */ | |
a8093297 | 661 | if (!codec->suspended) { |
4890140f | 662 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
f0fba2ad | 663 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
664 | /* |
665 | * If the CODEC is capable of idle | |
666 | * bias off then being in STANDBY | |
667 | * means it's doing something, | |
668 | * otherwise fall through. | |
669 | */ | |
4890140f | 670 | if (dapm->idle_bias_off) { |
125a25da | 671 | dev_dbg(codec->dev, |
10e8aa9a | 672 | "ASoC: idle_bias_off CODEC on over suspend\n"); |
125a25da MB |
673 | break; |
674 | } | |
a8093297 | 675 | |
f0fba2ad | 676 | case SND_SOC_BIAS_OFF: |
a8093297 LPC |
677 | if (codec->driver->suspend) |
678 | codec->driver->suspend(codec); | |
f0fba2ad | 679 | codec->suspended = 1; |
e2c330b9 LPC |
680 | if (codec->component.regmap) |
681 | regcache_mark_dirty(codec->component.regmap); | |
988e8cc4 NC |
682 | /* deactivate pins to sleep state */ |
683 | pinctrl_pm_select_sleep_state(codec->dev); | |
f0fba2ad LG |
684 | break; |
685 | default: | |
10e8aa9a MM |
686 | dev_dbg(codec->dev, |
687 | "ASoC: CODEC is on over suspend\n"); | |
f0fba2ad LG |
688 | break; |
689 | } | |
1547aba9 MB |
690 | } |
691 | } | |
db2a4165 | 692 | |
f0fba2ad LG |
693 | for (i = 0; i < card->num_rtd; i++) { |
694 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 695 | |
f0fba2ad | 696 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
697 | continue; |
698 | ||
bc263214 | 699 | if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) |
f0fba2ad | 700 | cpu_dai->driver->suspend(cpu_dai); |
988e8cc4 NC |
701 | |
702 | /* deactivate pins to sleep state */ | |
703 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
db2a4165 FM |
704 | } |
705 | ||
87506549 | 706 | if (card->suspend_post) |
70b2ac12 | 707 | card->suspend_post(card); |
db2a4165 FM |
708 | |
709 | return 0; | |
710 | } | |
6f8ab4ac | 711 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 712 | |
6ed25978 AG |
713 | /* deferred resume work, so resume can complete before we finished |
714 | * setting our codec back up, which can be very slow on I2C | |
715 | */ | |
716 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 717 | { |
f0fba2ad LG |
718 | struct snd_soc_card *card = |
719 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 720 | struct snd_soc_codec *codec; |
88bd870f | 721 | int i, j; |
db2a4165 | 722 | |
6ed25978 AG |
723 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
724 | * so userspace apps are blocked from touching us | |
725 | */ | |
726 | ||
f110bfc7 | 727 | dev_dbg(card->dev, "ASoC: starting resume work\n"); |
6ed25978 | 728 | |
9949788b | 729 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 730 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 731 | |
87506549 | 732 | if (card->resume_pre) |
70b2ac12 | 733 | card->resume_pre(card); |
db2a4165 | 734 | |
bc263214 | 735 | /* resume control bus DAIs */ |
f0fba2ad LG |
736 | for (i = 0; i < card->num_rtd; i++) { |
737 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 738 | |
f0fba2ad | 739 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
740 | continue; |
741 | ||
bc263214 | 742 | if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) |
f0fba2ad LG |
743 | cpu_dai->driver->resume(cpu_dai); |
744 | } | |
745 | ||
2eea392d | 746 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
a8093297 | 747 | if (codec->suspended) { |
b8faaba4 LPC |
748 | if (codec->driver->resume) |
749 | codec->driver->resume(codec); | |
750 | codec->suspended = 0; | |
1547aba9 MB |
751 | } |
752 | } | |
db2a4165 | 753 | |
f0fba2ad | 754 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 755 | |
f0fba2ad | 756 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
757 | continue; |
758 | ||
7bd3a6f3 | 759 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 760 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 761 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 762 | |
7bd3a6f3 | 763 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 764 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 765 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
766 | } |
767 | ||
3ff3f64b | 768 | /* unmute any active DACs */ |
f0fba2ad | 769 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 770 | |
f0fba2ad | 771 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
772 | continue; |
773 | ||
88bd870f BC |
774 | for (j = 0; j < card->rtd[i].num_codecs; j++) { |
775 | struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; | |
776 | struct snd_soc_dai_driver *drv = dai->driver; | |
777 | ||
778 | if (drv->ops->digital_mute && dai->playback_active) | |
779 | drv->ops->digital_mute(dai, 0); | |
780 | } | |
db2a4165 FM |
781 | } |
782 | ||
f0fba2ad LG |
783 | for (i = 0; i < card->num_rtd; i++) { |
784 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 785 | |
f0fba2ad | 786 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
787 | continue; |
788 | ||
bc263214 | 789 | if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) |
f0fba2ad | 790 | cpu_dai->driver->resume(cpu_dai); |
db2a4165 FM |
791 | } |
792 | ||
87506549 | 793 | if (card->resume_post) |
70b2ac12 | 794 | card->resume_post(card); |
db2a4165 | 795 | |
f110bfc7 | 796 | dev_dbg(card->dev, "ASoC: resume work completed\n"); |
6ed25978 AG |
797 | |
798 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 799 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
e2d32ff6 | 800 | |
8be4da29 LPC |
801 | /* Recheck all endpoints too, their state is affected by suspend */ |
802 | dapm_mark_endpoints_dirty(card); | |
e2d32ff6 | 803 | snd_soc_dapm_sync(&card->dapm); |
6ed25978 AG |
804 | } |
805 | ||
806 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 807 | int snd_soc_resume(struct device *dev) |
6ed25978 | 808 | { |
6f8ab4ac | 809 | struct snd_soc_card *card = dev_get_drvdata(dev); |
bc263214 LPC |
810 | bool bus_control = false; |
811 | int i; | |
b9dd94a8 | 812 | |
c5599b87 LPC |
813 | /* If the card is not initialized yet there is nothing to do */ |
814 | if (!card->instantiated) | |
5ff1ddf2 EM |
815 | return 0; |
816 | ||
988e8cc4 NC |
817 | /* activate pins from sleep state */ |
818 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
819 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
820 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
821 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
822 | int j; | |
823 | ||
988e8cc4 NC |
824 | if (cpu_dai->active) |
825 | pinctrl_pm_select_default_state(cpu_dai->dev); | |
88bd870f BC |
826 | |
827 | for (j = 0; j < rtd->num_codecs; j++) { | |
828 | struct snd_soc_dai *codec_dai = codec_dais[j]; | |
829 | if (codec_dai->active) | |
830 | pinctrl_pm_select_default_state(codec_dai->dev); | |
831 | } | |
988e8cc4 NC |
832 | } |
833 | ||
bc263214 LPC |
834 | /* |
835 | * DAIs that also act as the control bus master might have other drivers | |
836 | * hanging off them so need to resume immediately. Other drivers don't | |
837 | * have that problem and may take a substantial amount of time to resume | |
64ab9baa MB |
838 | * due to I/O costs and anti-pop so handle them out of line. |
839 | */ | |
f0fba2ad LG |
840 | for (i = 0; i < card->num_rtd; i++) { |
841 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
bc263214 | 842 | bus_control |= cpu_dai->driver->bus_control; |
82e14e8b | 843 | } |
bc263214 LPC |
844 | if (bus_control) { |
845 | dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); | |
82e14e8b SW |
846 | soc_resume_deferred(&card->deferred_resume_work); |
847 | } else { | |
f110bfc7 | 848 | dev_dbg(dev, "ASoC: Scheduling resume work\n"); |
82e14e8b | 849 | if (!schedule_work(&card->deferred_resume_work)) |
f110bfc7 | 850 | dev_err(dev, "ASoC: resume work item may be lost\n"); |
64ab9baa | 851 | } |
6ed25978 | 852 | |
db2a4165 FM |
853 | return 0; |
854 | } | |
6f8ab4ac | 855 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 856 | #else |
6f8ab4ac MB |
857 | #define snd_soc_suspend NULL |
858 | #define snd_soc_resume NULL | |
db2a4165 FM |
859 | #endif |
860 | ||
85e7652d | 861 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
862 | }; |
863 | ||
65d9361f LPC |
864 | static struct snd_soc_component *soc_find_component( |
865 | const struct device_node *of_node, const char *name) | |
12023a9a | 866 | { |
65d9361f | 867 | struct snd_soc_component *component; |
12023a9a | 868 | |
34e81ab4 LPC |
869 | lockdep_assert_held(&client_mutex); |
870 | ||
65d9361f LPC |
871 | list_for_each_entry(component, &component_list, list) { |
872 | if (of_node) { | |
873 | if (component->dev->of_node == of_node) | |
874 | return component; | |
875 | } else if (strcmp(component->name, name) == 0) { | |
876 | return component; | |
12023a9a | 877 | } |
12023a9a MLC |
878 | } |
879 | ||
880 | return NULL; | |
881 | } | |
882 | ||
14621c7e LPC |
883 | static struct snd_soc_dai *snd_soc_find_dai( |
884 | const struct snd_soc_dai_link_component *dlc) | |
12023a9a | 885 | { |
14621c7e LPC |
886 | struct snd_soc_component *component; |
887 | struct snd_soc_dai *dai; | |
3e0aa8d8 | 888 | struct device_node *component_of_node; |
12023a9a | 889 | |
34e81ab4 LPC |
890 | lockdep_assert_held(&client_mutex); |
891 | ||
14621c7e LPC |
892 | /* Find CPU DAI from registered DAIs*/ |
893 | list_for_each_entry(component, &component_list, list) { | |
3e0aa8d8 JS |
894 | component_of_node = component->dev->of_node; |
895 | if (!component_of_node && component->dev->parent) | |
896 | component_of_node = component->dev->parent->of_node; | |
897 | ||
898 | if (dlc->of_node && component_of_node != dlc->of_node) | |
14621c7e | 899 | continue; |
1ffae361 | 900 | if (dlc->name && strcmp(component->name, dlc->name)) |
14621c7e LPC |
901 | continue; |
902 | list_for_each_entry(dai, &component->dai_list, list) { | |
903 | if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) | |
12023a9a | 904 | continue; |
12023a9a | 905 | |
14621c7e | 906 | return dai; |
12023a9a MLC |
907 | } |
908 | } | |
909 | ||
910 | return NULL; | |
911 | } | |
912 | ||
f0fba2ad | 913 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 914 | { |
f0fba2ad LG |
915 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
916 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
88bd870f | 917 | struct snd_soc_dai_link_component *codecs = dai_link->codecs; |
14621c7e | 918 | struct snd_soc_dai_link_component cpu_dai_component; |
88bd870f | 919 | struct snd_soc_dai **codec_dais = rtd->codec_dais; |
435c5e25 | 920 | struct snd_soc_platform *platform; |
848dd8be | 921 | const char *platform_name; |
88bd870f | 922 | int i; |
435c5e25 | 923 | |
f110bfc7 | 924 | dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); |
435c5e25 | 925 | |
14621c7e LPC |
926 | cpu_dai_component.name = dai_link->cpu_name; |
927 | cpu_dai_component.of_node = dai_link->cpu_of_node; | |
928 | cpu_dai_component.dai_name = dai_link->cpu_dai_name; | |
929 | rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); | |
b19e6e7b | 930 | if (!rtd->cpu_dai) { |
f110bfc7 | 931 | dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", |
b19e6e7b MB |
932 | dai_link->cpu_dai_name); |
933 | return -EPROBE_DEFER; | |
f0fba2ad LG |
934 | } |
935 | ||
88bd870f | 936 | rtd->num_codecs = dai_link->num_codecs; |
848dd8be | 937 | |
88bd870f BC |
938 | /* Find CODEC from registered CODECs */ |
939 | for (i = 0; i < rtd->num_codecs; i++) { | |
14621c7e | 940 | codec_dais[i] = snd_soc_find_dai(&codecs[i]); |
88bd870f BC |
941 | if (!codec_dais[i]) { |
942 | dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", | |
943 | codecs[i].dai_name); | |
944 | return -EPROBE_DEFER; | |
945 | } | |
12023a9a MLC |
946 | } |
947 | ||
88bd870f BC |
948 | /* Single codec links expect codec and codec_dai in runtime data */ |
949 | rtd->codec_dai = codec_dais[0]; | |
950 | rtd->codec = rtd->codec_dai->codec; | |
951 | ||
848dd8be MB |
952 | /* if there's no platform we match on the empty platform */ |
953 | platform_name = dai_link->platform_name; | |
5a504963 | 954 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
955 | platform_name = "snd-soc-dummy"; |
956 | ||
b19e6e7b | 957 | /* find one from the set of registered platforms */ |
f0fba2ad | 958 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
959 | if (dai_link->platform_of_node) { |
960 | if (platform->dev->of_node != | |
961 | dai_link->platform_of_node) | |
962 | continue; | |
963 | } else { | |
f4333203 | 964 | if (strcmp(platform->component.name, platform_name)) |
5a504963 SW |
965 | continue; |
966 | } | |
2610ab77 SW |
967 | |
968 | rtd->platform = platform; | |
02a06d30 | 969 | } |
b19e6e7b | 970 | if (!rtd->platform) { |
f110bfc7 | 971 | dev_err(card->dev, "ASoC: platform %s not registered\n", |
f0fba2ad | 972 | dai_link->platform_name); |
b19e6e7b | 973 | return -EPROBE_DEFER; |
f0fba2ad | 974 | } |
b19e6e7b MB |
975 | |
976 | card->num_rtd++; | |
977 | ||
978 | return 0; | |
f0fba2ad LG |
979 | } |
980 | ||
f1d45cc3 | 981 | static void soc_remove_component(struct snd_soc_component *component) |
d12cd198 | 982 | { |
abd31b32 | 983 | if (!component->card) |
70090bbb | 984 | return; |
d12cd198 | 985 | |
f1d45cc3 LPC |
986 | /* This is a HACK and will be removed soon */ |
987 | if (component->codec) | |
988 | list_del(&component->codec->card_list); | |
589c3563 | 989 | |
f1d45cc3 LPC |
990 | if (component->remove) |
991 | component->remove(component); | |
589c3563 | 992 | |
f1d45cc3 | 993 | snd_soc_dapm_free(snd_soc_component_get_dapm(component)); |
589c3563 | 994 | |
f1d45cc3 | 995 | soc_cleanup_component_debugfs(component); |
abd31b32 | 996 | component->card = NULL; |
f1d45cc3 | 997 | module_put(component->dev->driver->owner); |
589c3563 JN |
998 | } |
999 | ||
e60cd14f | 1000 | static void soc_remove_dai(struct snd_soc_dai *dai, int order) |
f0fba2ad | 1001 | { |
f0fba2ad LG |
1002 | int err; |
1003 | ||
e60cd14f LPC |
1004 | if (dai && dai->probed && |
1005 | dai->driver->remove_order == order) { | |
1006 | if (dai->driver->remove) { | |
1007 | err = dai->driver->remove(dai); | |
f0fba2ad | 1008 | if (err < 0) |
e60cd14f | 1009 | dev_err(dai->dev, |
f110bfc7 | 1010 | "ASoC: failed to remove %s: %d\n", |
e60cd14f | 1011 | dai->name, err); |
6b05eda6 | 1012 | } |
e60cd14f | 1013 | dai->probed = 0; |
f0fba2ad | 1014 | } |
b0aa88af MLC |
1015 | } |
1016 | ||
1017 | static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) | |
1018 | { | |
1019 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
e60cd14f | 1020 | int i; |
b0aa88af MLC |
1021 | |
1022 | /* unregister the rtd device */ | |
1023 | if (rtd->dev_registered) { | |
b0aa88af MLC |
1024 | device_unregister(rtd->dev); |
1025 | rtd->dev_registered = 0; | |
1026 | } | |
1027 | ||
1028 | /* remove the CODEC DAI */ | |
88bd870f | 1029 | for (i = 0; i < rtd->num_codecs; i++) |
e60cd14f | 1030 | soc_remove_dai(rtd->codec_dais[i], order); |
6b05eda6 | 1031 | |
e60cd14f | 1032 | soc_remove_dai(rtd->cpu_dai, order); |
f0fba2ad | 1033 | } |
db2a4165 | 1034 | |
62ae68fa SW |
1035 | static void soc_remove_link_components(struct snd_soc_card *card, int num, |
1036 | int order) | |
1037 | { | |
1038 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1039 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
62ae68fa | 1040 | struct snd_soc_platform *platform = rtd->platform; |
61aca564 | 1041 | struct snd_soc_component *component; |
88bd870f | 1042 | int i; |
62ae68fa SW |
1043 | |
1044 | /* remove the platform */ | |
70090bbb | 1045 | if (platform && platform->component.driver->remove_order == order) |
f1d45cc3 | 1046 | soc_remove_component(&platform->component); |
62ae68fa SW |
1047 | |
1048 | /* remove the CODEC-side CODEC */ | |
88bd870f | 1049 | for (i = 0; i < rtd->num_codecs; i++) { |
61aca564 | 1050 | component = rtd->codec_dais[i]->component; |
70090bbb | 1051 | if (component->driver->remove_order == order) |
61aca564 | 1052 | soc_remove_component(component); |
62ae68fa SW |
1053 | } |
1054 | ||
1055 | /* remove any CPU-side CODEC */ | |
1056 | if (cpu_dai) { | |
70090bbb | 1057 | if (cpu_dai->component->driver->remove_order == order) |
61aca564 | 1058 | soc_remove_component(cpu_dai->component); |
62ae68fa SW |
1059 | } |
1060 | } | |
1061 | ||
0671fd8e KM |
1062 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1063 | { | |
0168bf0d | 1064 | int dai, order; |
0671fd8e | 1065 | |
0168bf0d LG |
1066 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1067 | order++) { | |
1068 | for (dai = 0; dai < card->num_rtd; dai++) | |
62ae68fa SW |
1069 | soc_remove_link_dais(card, dai, order); |
1070 | } | |
1071 | ||
1072 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1073 | order++) { | |
1074 | for (dai = 0; dai < card->num_rtd; dai++) | |
1075 | soc_remove_link_components(card, dai, order); | |
0168bf0d | 1076 | } |
62ae68fa | 1077 | |
0671fd8e KM |
1078 | card->num_rtd = 0; |
1079 | } | |
1080 | ||
ead9b919 | 1081 | static void soc_set_name_prefix(struct snd_soc_card *card, |
94f99c87 | 1082 | struct snd_soc_component *component) |
ead9b919 JN |
1083 | { |
1084 | int i; | |
1085 | ||
ff819b83 | 1086 | if (card->codec_conf == NULL) |
ead9b919 JN |
1087 | return; |
1088 | ||
ff819b83 DP |
1089 | for (i = 0; i < card->num_configs; i++) { |
1090 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
94f99c87 | 1091 | if (map->of_node && component->dev->of_node != map->of_node) |
3ca041ed | 1092 | continue; |
94f99c87 | 1093 | if (map->dev_name && strcmp(component->name, map->dev_name)) |
3ca041ed | 1094 | continue; |
94f99c87 | 1095 | component->name_prefix = map->name_prefix; |
3ca041ed | 1096 | break; |
ead9b919 JN |
1097 | } |
1098 | } | |
1099 | ||
f1d45cc3 LPC |
1100 | static int soc_probe_component(struct snd_soc_card *card, |
1101 | struct snd_soc_component *component) | |
589c3563 | 1102 | { |
f1d45cc3 | 1103 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
888df395 | 1104 | struct snd_soc_dai *dai; |
f1d45cc3 | 1105 | int ret; |
589c3563 | 1106 | |
1b7c1231 | 1107 | if (!strcmp(component->name, "snd-soc-dummy")) |
70090bbb | 1108 | return 0; |
589c3563 | 1109 | |
abd31b32 | 1110 | if (component->card) { |
1b7c1231 LPC |
1111 | if (component->card != card) { |
1112 | dev_err(component->dev, | |
1113 | "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", | |
1114 | card->name, component->card->name); | |
1115 | return -ENODEV; | |
1116 | } | |
1117 | return 0; | |
1118 | } | |
589c3563 | 1119 | |
f1d45cc3 | 1120 | if (!try_module_get(component->dev->driver->owner)) |
70d29331 JN |
1121 | return -ENODEV; |
1122 | ||
f1d45cc3 LPC |
1123 | component->card = card; |
1124 | dapm->card = card; | |
1125 | soc_set_name_prefix(card, component); | |
589c3563 | 1126 | |
f1d45cc3 | 1127 | soc_init_component_debugfs(component); |
d5d1e0be | 1128 | |
f1d45cc3 LPC |
1129 | if (component->dapm_widgets) { |
1130 | ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, | |
1131 | component->num_dapm_widgets); | |
b318ad50 NP |
1132 | |
1133 | if (ret != 0) { | |
f1d45cc3 | 1134 | dev_err(component->dev, |
b318ad50 NP |
1135 | "Failed to create new controls %d\n", ret); |
1136 | goto err_probe; | |
1137 | } | |
1138 | } | |
77530150 | 1139 | |
0634814f LPC |
1140 | list_for_each_entry(dai, &component->dai_list, list) { |
1141 | ret = snd_soc_dapm_new_dai_widgets(dapm, dai); | |
261edc70 | 1142 | if (ret != 0) { |
0634814f | 1143 | dev_err(component->dev, |
261edc70 NP |
1144 | "Failed to create DAI widgets %d\n", ret); |
1145 | goto err_probe; | |
1146 | } | |
1147 | } | |
888df395 | 1148 | |
f1d45cc3 LPC |
1149 | if (component->probe) { |
1150 | ret = component->probe(component); | |
589c3563 | 1151 | if (ret < 0) { |
f1d45cc3 LPC |
1152 | dev_err(component->dev, |
1153 | "ASoC: failed to probe component %d\n", ret); | |
70d29331 | 1154 | goto err_probe; |
589c3563 | 1155 | } |
cb2cf612 | 1156 | |
f1d45cc3 LPC |
1157 | WARN(dapm->idle_bias_off && |
1158 | dapm->bias_level != SND_SOC_BIAS_OFF, | |
1159 | "codec %s can not start from non-off bias with idle_bias_off==1\n", | |
1160 | component->name); | |
be09ad90 LG |
1161 | } |
1162 | ||
f1d45cc3 LPC |
1163 | if (component->controls) |
1164 | snd_soc_add_component_controls(component, component->controls, | |
1165 | component->num_controls); | |
1166 | if (component->dapm_routes) | |
1167 | snd_soc_dapm_add_routes(dapm, component->dapm_routes, | |
1168 | component->num_dapm_routes); | |
3fec6b6d | 1169 | |
f1d45cc3 | 1170 | list_add(&dapm->list, &card->dapm_list); |
cb2cf612 | 1171 | |
f1d45cc3 LPC |
1172 | /* This is a HACK and will be removed soon */ |
1173 | if (component->codec) | |
1174 | list_add(&component->codec->card_list, &card->codec_dev_list); | |
956245e9 LG |
1175 | |
1176 | return 0; | |
1177 | ||
1178 | err_probe: | |
f1d45cc3 | 1179 | soc_cleanup_component_debugfs(component); |
abd31b32 | 1180 | component->card = NULL; |
f1d45cc3 | 1181 | module_put(component->dev->driver->owner); |
956245e9 LG |
1182 | |
1183 | return ret; | |
1184 | } | |
1185 | ||
36ae1a96 MB |
1186 | static void rtd_release(struct device *dev) |
1187 | { | |
1188 | kfree(dev); | |
1189 | } | |
f0fba2ad | 1190 | |
5f3484ac LPC |
1191 | static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, |
1192 | const char *name) | |
503ae5e0 | 1193 | { |
589c3563 JN |
1194 | int ret = 0; |
1195 | ||
589c3563 | 1196 | /* register the rtd device */ |
36ae1a96 MB |
1197 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); |
1198 | if (!rtd->dev) | |
1199 | return -ENOMEM; | |
1200 | device_initialize(rtd->dev); | |
5f3484ac | 1201 | rtd->dev->parent = rtd->card->dev; |
36ae1a96 | 1202 | rtd->dev->release = rtd_release; |
d29697dc | 1203 | rtd->dev->groups = soc_dev_attr_groups; |
f294afed | 1204 | dev_set_name(rtd->dev, "%s", name); |
36ae1a96 | 1205 | dev_set_drvdata(rtd->dev, rtd); |
b8c0dab9 | 1206 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1207 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1208 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1209 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1210 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1211 | ret = device_add(rtd->dev); |
589c3563 | 1212 | if (ret < 0) { |
865df9cb CL |
1213 | /* calling put_device() here to free the rtd->dev */ |
1214 | put_device(rtd->dev); | |
5f3484ac | 1215 | dev_err(rtd->card->dev, |
f110bfc7 | 1216 | "ASoC: failed to register runtime device: %d\n", ret); |
589c3563 JN |
1217 | return ret; |
1218 | } | |
1219 | rtd->dev_registered = 1; | |
589c3563 JN |
1220 | return 0; |
1221 | } | |
1222 | ||
62ae68fa SW |
1223 | static int soc_probe_link_components(struct snd_soc_card *card, int num, |
1224 | int order) | |
1225 | { | |
1226 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
62ae68fa | 1227 | struct snd_soc_platform *platform = rtd->platform; |
f1d45cc3 | 1228 | struct snd_soc_component *component; |
88bd870f | 1229 | int i, ret; |
62ae68fa SW |
1230 | |
1231 | /* probe the CPU-side component, if it is a CODEC */ | |
61aca564 | 1232 | component = rtd->cpu_dai->component; |
70090bbb | 1233 | if (component->driver->probe_order == order) { |
61aca564 | 1234 | ret = soc_probe_component(card, component); |
62ae68fa SW |
1235 | if (ret < 0) |
1236 | return ret; | |
1237 | } | |
1238 | ||
88bd870f BC |
1239 | /* probe the CODEC-side components */ |
1240 | for (i = 0; i < rtd->num_codecs; i++) { | |
61aca564 | 1241 | component = rtd->codec_dais[i]->component; |
70090bbb | 1242 | if (component->driver->probe_order == order) { |
f1d45cc3 | 1243 | ret = soc_probe_component(card, component); |
88bd870f BC |
1244 | if (ret < 0) |
1245 | return ret; | |
1246 | } | |
62ae68fa SW |
1247 | } |
1248 | ||
1249 | /* probe the platform */ | |
70090bbb | 1250 | if (platform->component.driver->probe_order == order) { |
f1d45cc3 | 1251 | ret = soc_probe_component(card, &platform->component); |
62ae68fa SW |
1252 | if (ret < 0) |
1253 | return ret; | |
1254 | } | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
8e2be562 | 1259 | static int soc_probe_dai(struct snd_soc_dai *dai, int order) |
b0aa88af MLC |
1260 | { |
1261 | int ret; | |
1262 | ||
8e2be562 LPC |
1263 | if (!dai->probed && dai->driver->probe_order == order) { |
1264 | if (dai->driver->probe) { | |
1265 | ret = dai->driver->probe(dai); | |
b0aa88af | 1266 | if (ret < 0) { |
8e2be562 LPC |
1267 | dev_err(dai->dev, |
1268 | "ASoC: failed to probe DAI %s: %d\n", | |
1269 | dai->name, ret); | |
b0aa88af MLC |
1270 | return ret; |
1271 | } | |
1272 | } | |
1273 | ||
8e2be562 | 1274 | dai->probed = 1; |
b0aa88af MLC |
1275 | } |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
2436a723 MLC |
1280 | static int soc_link_dai_widgets(struct snd_soc_card *card, |
1281 | struct snd_soc_dai_link *dai_link, | |
3f901a02 | 1282 | struct snd_soc_pcm_runtime *rtd) |
2436a723 | 1283 | { |
3f901a02 BC |
1284 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1285 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2436a723 MLC |
1286 | struct snd_soc_dapm_widget *play_w, *capture_w; |
1287 | int ret; | |
1288 | ||
88bd870f BC |
1289 | if (rtd->num_codecs > 1) |
1290 | dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); | |
1291 | ||
2436a723 MLC |
1292 | /* link the DAI widgets */ |
1293 | play_w = codec_dai->playback_widget; | |
1294 | capture_w = cpu_dai->capture_widget; | |
1295 | if (play_w && capture_w) { | |
1296 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
c6615082 NO |
1297 | dai_link->num_params, capture_w, |
1298 | play_w); | |
2436a723 MLC |
1299 | if (ret != 0) { |
1300 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1301 | play_w->name, capture_w->name, ret); | |
1302 | return ret; | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | play_w = cpu_dai->playback_widget; | |
1307 | capture_w = codec_dai->capture_widget; | |
1308 | if (play_w && capture_w) { | |
1309 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
c6615082 NO |
1310 | dai_link->num_params, capture_w, |
1311 | play_w); | |
2436a723 MLC |
1312 | if (ret != 0) { |
1313 | dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", | |
1314 | play_w->name, capture_w->name, ret); | |
1315 | return ret; | |
1316 | } | |
1317 | } | |
1318 | ||
1319 | return 0; | |
1320 | } | |
1321 | ||
62ae68fa | 1322 | static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1323 | { |
1324 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1325 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
c74184ed | 1326 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
88bd870f | 1327 | int i, ret; |
f0fba2ad | 1328 | |
f110bfc7 | 1329 | dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", |
0168bf0d | 1330 | card->name, num, order); |
f0fba2ad | 1331 | |
f0fba2ad LG |
1332 | /* set default power off timeout */ |
1333 | rtd->pmdown_time = pmdown_time; | |
1334 | ||
8e2be562 LPC |
1335 | ret = soc_probe_dai(cpu_dai, order); |
1336 | if (ret) | |
1337 | return ret; | |
db2a4165 | 1338 | |
f0fba2ad | 1339 | /* probe the CODEC DAI */ |
88bd870f | 1340 | for (i = 0; i < rtd->num_codecs; i++) { |
8e2be562 | 1341 | ret = soc_probe_dai(rtd->codec_dais[i], order); |
88bd870f BC |
1342 | if (ret) |
1343 | return ret; | |
1344 | } | |
fe3e78e0 | 1345 | |
0168bf0d LG |
1346 | /* complete DAI probe during last probe */ |
1347 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1348 | return 0; | |
1349 | ||
5f3484ac LPC |
1350 | /* do machine specific initialization */ |
1351 | if (dai_link->init) { | |
1352 | ret = dai_link->init(rtd); | |
1353 | if (ret < 0) { | |
1354 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1355 | dai_link->name, ret); | |
1356 | return ret; | |
1357 | } | |
1358 | } | |
1359 | ||
a5053a8e KM |
1360 | if (dai_link->dai_fmt) |
1361 | snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); | |
1362 | ||
5f3484ac | 1363 | ret = soc_post_component_init(rtd, dai_link->name); |
589c3563 | 1364 | if (ret) |
f0fba2ad | 1365 | return ret; |
fe3e78e0 | 1366 | |
5f3484ac LPC |
1367 | #ifdef CONFIG_DEBUG_FS |
1368 | /* add DPCM sysfs entries */ | |
2e55b90a LPC |
1369 | if (dai_link->dynamic) |
1370 | soc_dpcm_debugfs_add(rtd); | |
5f3484ac LPC |
1371 | #endif |
1372 | ||
1245b700 NK |
1373 | if (cpu_dai->driver->compress_dai) { |
1374 | /*create compress_device"*/ | |
1375 | ret = soc_new_compress(rtd, num); | |
c74184ed | 1376 | if (ret < 0) { |
f110bfc7 | 1377 | dev_err(card->dev, "ASoC: can't create compress %s\n", |
1245b700 | 1378 | dai_link->stream_name); |
c74184ed MB |
1379 | return ret; |
1380 | } | |
1381 | } else { | |
1245b700 NK |
1382 | |
1383 | if (!dai_link->params) { | |
1384 | /* create the pcm */ | |
1385 | ret = soc_new_pcm(rtd, num); | |
1386 | if (ret < 0) { | |
f110bfc7 | 1387 | dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", |
1245b700 | 1388 | dai_link->stream_name, ret); |
c74184ed MB |
1389 | return ret; |
1390 | } | |
1245b700 | 1391 | } else { |
9d58a077 RF |
1392 | INIT_DELAYED_WORK(&rtd->delayed_work, |
1393 | codec2codec_close_delayed_work); | |
1394 | ||
1245b700 | 1395 | /* link the DAI widgets */ |
3f901a02 | 1396 | ret = soc_link_dai_widgets(card, dai_link, rtd); |
2436a723 MLC |
1397 | if (ret) |
1398 | return ret; | |
c74184ed | 1399 | } |
f0fba2ad LG |
1400 | } |
1401 | ||
f0fba2ad LG |
1402 | return 0; |
1403 | } | |
1404 | ||
44c69bb1 | 1405 | static int soc_bind_aux_dev(struct snd_soc_card *card, int num) |
3ca041ed | 1406 | { |
44c69bb1 | 1407 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
3ca041ed | 1408 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
65d9361f | 1409 | const char *name = aux_dev->codec_name; |
3ca041ed | 1410 | |
65d9361f LPC |
1411 | rtd->component = soc_find_component(aux_dev->codec_of_node, name); |
1412 | if (!rtd->component) { | |
3ca041ed | 1413 | if (aux_dev->codec_of_node) |
65d9361f | 1414 | name = of_node_full_name(aux_dev->codec_of_node); |
3ca041ed | 1415 | |
65d9361f | 1416 | dev_err(card->dev, "ASoC: %s not registered\n", name); |
3ca041ed SR |
1417 | return -EPROBE_DEFER; |
1418 | } | |
fb099cb7 | 1419 | |
65d9361f LPC |
1420 | /* |
1421 | * Some places still reference rtd->codec, so we have to keep that | |
1422 | * initialized if the component is a CODEC. Once all those references | |
1423 | * have been removed, this code can be removed as well. | |
1424 | */ | |
1425 | rtd->codec = rtd->component->codec; | |
1426 | ||
44c69bb1 | 1427 | return 0; |
b19e6e7b MB |
1428 | } |
1429 | ||
2eea392d JN |
1430 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1431 | { | |
44c69bb1 | 1432 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; |
2eea392d | 1433 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; |
44c69bb1 | 1434 | int ret; |
3ca041ed | 1435 | |
65d9361f | 1436 | ret = soc_probe_component(card, rtd->component); |
2eea392d | 1437 | if (ret < 0) |
589c3563 | 1438 | return ret; |
2eea392d | 1439 | |
5f3484ac LPC |
1440 | /* do machine specific initialization */ |
1441 | if (aux_dev->init) { | |
57bf7726 | 1442 | ret = aux_dev->init(rtd->component); |
5f3484ac LPC |
1443 | if (ret < 0) { |
1444 | dev_err(card->dev, "ASoC: failed to init %s: %d\n", | |
1445 | aux_dev->name, ret); | |
1446 | return ret; | |
1447 | } | |
1448 | } | |
2eea392d | 1449 | |
5f3484ac | 1450 | return soc_post_component_init(rtd, aux_dev->name); |
2eea392d JN |
1451 | } |
1452 | ||
1453 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1454 | { | |
1455 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
65d9361f | 1456 | struct snd_soc_component *component = rtd->component; |
2eea392d JN |
1457 | |
1458 | /* unregister the rtd device */ | |
1459 | if (rtd->dev_registered) { | |
d3bf1561 | 1460 | device_unregister(rtd->dev); |
2eea392d JN |
1461 | rtd->dev_registered = 0; |
1462 | } | |
1463 | ||
abd31b32 | 1464 | if (component) |
65d9361f | 1465 | soc_remove_component(component); |
2eea392d JN |
1466 | } |
1467 | ||
f90fb3f7 | 1468 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) |
fdf0f54d DP |
1469 | { |
1470 | int ret; | |
1471 | ||
1472 | if (codec->cache_init) | |
1473 | return 0; | |
1474 | ||
fdf0f54d DP |
1475 | ret = snd_soc_cache_init(codec); |
1476 | if (ret < 0) { | |
10e8aa9a MM |
1477 | dev_err(codec->dev, |
1478 | "ASoC: Failed to set cache compression type: %d\n", | |
1479 | ret); | |
fdf0f54d DP |
1480 | return ret; |
1481 | } | |
1482 | codec->cache_init = 1; | |
1483 | return 0; | |
1484 | } | |
1485 | ||
ce64c8b9 LPC |
1486 | /** |
1487 | * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime | |
1488 | * @rtd: The runtime for which the DAI link format should be changed | |
1489 | * @dai_fmt: The new DAI link format | |
1490 | * | |
1491 | * This function updates the DAI link format for all DAIs connected to the DAI | |
1492 | * link for the specified runtime. | |
1493 | * | |
1494 | * Note: For setups with a static format set the dai_fmt field in the | |
1495 | * corresponding snd_dai_link struct instead of using this function. | |
1496 | * | |
1497 | * Returns 0 on success, otherwise a negative error code. | |
1498 | */ | |
1499 | int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, | |
1500 | unsigned int dai_fmt) | |
1501 | { | |
1502 | struct snd_soc_dai **codec_dais = rtd->codec_dais; | |
1503 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1504 | unsigned int i; | |
1505 | int ret; | |
1506 | ||
1507 | for (i = 0; i < rtd->num_codecs; i++) { | |
1508 | struct snd_soc_dai *codec_dai = codec_dais[i]; | |
1509 | ||
1510 | ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); | |
1511 | if (ret != 0 && ret != -ENOTSUPP) { | |
1512 | dev_warn(codec_dai->dev, | |
1513 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1514 | return ret; | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ | |
1519 | if (cpu_dai->codec) { | |
1520 | unsigned int inv_dai_fmt; | |
1521 | ||
1522 | inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; | |
1523 | switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1524 | case SND_SOC_DAIFMT_CBM_CFM: | |
1525 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1526 | break; | |
1527 | case SND_SOC_DAIFMT_CBM_CFS: | |
1528 | inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1529 | break; | |
1530 | case SND_SOC_DAIFMT_CBS_CFM: | |
1531 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1532 | break; | |
1533 | case SND_SOC_DAIFMT_CBS_CFS: | |
1534 | inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1535 | break; | |
1536 | } | |
1537 | ||
1538 | dai_fmt = inv_dai_fmt; | |
1539 | } | |
1540 | ||
1541 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); | |
1542 | if (ret != 0 && ret != -ENOTSUPP) { | |
1543 | dev_warn(cpu_dai->dev, | |
1544 | "ASoC: Failed to set DAI format: %d\n", ret); | |
1545 | return ret; | |
1546 | } | |
1547 | ||
1548 | return 0; | |
1549 | } | |
ddaca25a | 1550 | EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); |
ce64c8b9 | 1551 | |
b19e6e7b | 1552 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1553 | { |
fdf0f54d | 1554 | struct snd_soc_codec *codec; |
ce64c8b9 | 1555 | int ret, i, order; |
fe3e78e0 | 1556 | |
34e81ab4 | 1557 | mutex_lock(&client_mutex); |
01b9d99a | 1558 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1559 | |
f0fba2ad | 1560 | /* bind DAIs */ |
b19e6e7b MB |
1561 | for (i = 0; i < card->num_links; i++) { |
1562 | ret = soc_bind_dai_link(card, i); | |
1563 | if (ret != 0) | |
1564 | goto base_error; | |
1565 | } | |
fe3e78e0 | 1566 | |
44c69bb1 | 1567 | /* bind aux_devs too */ |
b19e6e7b | 1568 | for (i = 0; i < card->num_aux_devs; i++) { |
44c69bb1 | 1569 | ret = soc_bind_aux_dev(card, i); |
b19e6e7b MB |
1570 | if (ret != 0) |
1571 | goto base_error; | |
f0fba2ad | 1572 | } |
435c5e25 | 1573 | |
fdf0f54d DP |
1574 | /* initialize the register cache for each available codec */ |
1575 | list_for_each_entry(codec, &codec_list, list) { | |
1576 | if (codec->cache_init) | |
1577 | continue; | |
f90fb3f7 | 1578 | ret = snd_soc_init_codec_cache(codec); |
b19e6e7b MB |
1579 | if (ret < 0) |
1580 | goto base_error; | |
fdf0f54d DP |
1581 | } |
1582 | ||
f0fba2ad | 1583 | /* card bind complete so register a sound card */ |
102b5a8d | 1584 | ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
f0fba2ad LG |
1585 | card->owner, 0, &card->snd_card); |
1586 | if (ret < 0) { | |
10e8aa9a MM |
1587 | dev_err(card->dev, |
1588 | "ASoC: can't create sound card for card %s: %d\n", | |
1589 | card->name, ret); | |
b19e6e7b | 1590 | goto base_error; |
f0fba2ad | 1591 | } |
f0fba2ad | 1592 | |
0757d834 LPC |
1593 | soc_init_card_debugfs(card); |
1594 | ||
e37a4970 MB |
1595 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1596 | card->dapm.dev = card->dev; | |
1597 | card->dapm.card = card; | |
1598 | list_add(&card->dapm.list, &card->dapm_list); | |
1599 | ||
d5d1e0be LPC |
1600 | #ifdef CONFIG_DEBUG_FS |
1601 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1602 | #endif | |
1603 | ||
88ee1c61 | 1604 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1605 | /* deferred resume work */ |
1606 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1607 | #endif | |
db2a4165 | 1608 | |
9a841ebb MB |
1609 | if (card->dapm_widgets) |
1610 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1611 | card->num_dapm_widgets); | |
1612 | ||
f23e860e NC |
1613 | if (card->of_dapm_widgets) |
1614 | snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, | |
1615 | card->num_of_dapm_widgets); | |
1616 | ||
f0fba2ad LG |
1617 | /* initialise the sound card only once */ |
1618 | if (card->probe) { | |
e7361ec4 | 1619 | ret = card->probe(card); |
f0fba2ad LG |
1620 | if (ret < 0) |
1621 | goto card_probe_error; | |
1622 | } | |
fe3e78e0 | 1623 | |
62ae68fa | 1624 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1625 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1626 | order++) { | |
1627 | for (i = 0; i < card->num_links; i++) { | |
62ae68fa | 1628 | ret = soc_probe_link_components(card, i, order); |
0168bf0d | 1629 | if (ret < 0) { |
f110bfc7 LG |
1630 | dev_err(card->dev, |
1631 | "ASoC: failed to instantiate card %d\n", | |
1632 | ret); | |
62ae68fa SW |
1633 | goto probe_dai_err; |
1634 | } | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | /* probe all DAI links on this card */ | |
1639 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1640 | order++) { | |
1641 | for (i = 0; i < card->num_links; i++) { | |
1642 | ret = soc_probe_link_dais(card, i, order); | |
1643 | if (ret < 0) { | |
f110bfc7 LG |
1644 | dev_err(card->dev, |
1645 | "ASoC: failed to instantiate card %d\n", | |
1646 | ret); | |
0168bf0d LG |
1647 | goto probe_dai_err; |
1648 | } | |
f0fba2ad LG |
1649 | } |
1650 | } | |
db2a4165 | 1651 | |
2eea392d JN |
1652 | for (i = 0; i < card->num_aux_devs; i++) { |
1653 | ret = soc_probe_aux_dev(card, i); | |
1654 | if (ret < 0) { | |
f110bfc7 LG |
1655 | dev_err(card->dev, |
1656 | "ASoC: failed to add auxiliary devices %d\n", | |
1657 | ret); | |
2eea392d JN |
1658 | goto probe_aux_dev_err; |
1659 | } | |
1660 | } | |
1661 | ||
888df395 | 1662 | snd_soc_dapm_link_dai_widgets(card); |
b893ea5f | 1663 | snd_soc_dapm_connect_dai_link_widgets(card); |
888df395 | 1664 | |
b7af1daf | 1665 | if (card->controls) |
022658be | 1666 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1667 | |
b8ad29de MB |
1668 | if (card->dapm_routes) |
1669 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1670 | card->num_dapm_routes); | |
1671 | ||
f23e860e NC |
1672 | if (card->of_dapm_routes) |
1673 | snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, | |
1674 | card->num_of_dapm_routes); | |
75d9ac46 | 1675 | |
f0fba2ad | 1676 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1677 | "%s", card->name); |
22de71ba LG |
1678 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1679 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1680 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1681 | "%s", card->driver_name ? card->driver_name : card->name); | |
1682 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1683 | switch (card->snd_card->driver[i]) { | |
1684 | case '_': | |
1685 | case '-': | |
1686 | case '\0': | |
1687 | break; | |
1688 | default: | |
1689 | if (!isalnum(card->snd_card->driver[i])) | |
1690 | card->snd_card->driver[i] = '_'; | |
1691 | break; | |
1692 | } | |
1693 | } | |
f0fba2ad | 1694 | |
28e9ad92 MB |
1695 | if (card->late_probe) { |
1696 | ret = card->late_probe(card); | |
1697 | if (ret < 0) { | |
f110bfc7 | 1698 | dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", |
28e9ad92 MB |
1699 | card->name, ret); |
1700 | goto probe_aux_dev_err; | |
1701 | } | |
1702 | } | |
1703 | ||
824ef826 | 1704 | snd_soc_dapm_new_widgets(card); |
8c193b8d | 1705 | |
f0fba2ad LG |
1706 | ret = snd_card_register(card->snd_card); |
1707 | if (ret < 0) { | |
f110bfc7 LG |
1708 | dev_err(card->dev, "ASoC: failed to register soundcard %d\n", |
1709 | ret); | |
6b3ed785 | 1710 | goto probe_aux_dev_err; |
db2a4165 FM |
1711 | } |
1712 | ||
f0fba2ad | 1713 | card->instantiated = 1; |
4f4c0072 | 1714 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1715 | mutex_unlock(&card->mutex); |
34e81ab4 | 1716 | mutex_unlock(&client_mutex); |
b19e6e7b MB |
1717 | |
1718 | return 0; | |
f0fba2ad | 1719 | |
2eea392d JN |
1720 | probe_aux_dev_err: |
1721 | for (i = 0; i < card->num_aux_devs; i++) | |
1722 | soc_remove_aux_dev(card, i); | |
1723 | ||
f0fba2ad | 1724 | probe_dai_err: |
0671fd8e | 1725 | soc_remove_dai_links(card); |
f0fba2ad LG |
1726 | |
1727 | card_probe_error: | |
87506549 | 1728 | if (card->remove) |
e7361ec4 | 1729 | card->remove(card); |
f0fba2ad | 1730 | |
2210438b | 1731 | snd_soc_dapm_free(&card->dapm); |
0757d834 | 1732 | soc_cleanup_card_debugfs(card); |
f0fba2ad LG |
1733 | snd_card_free(card->snd_card); |
1734 | ||
b19e6e7b | 1735 | base_error: |
f0fba2ad | 1736 | mutex_unlock(&card->mutex); |
34e81ab4 | 1737 | mutex_unlock(&client_mutex); |
db2a4165 | 1738 | |
b19e6e7b | 1739 | return ret; |
435c5e25 MB |
1740 | } |
1741 | ||
1742 | /* probes a new socdev */ | |
1743 | static int soc_probe(struct platform_device *pdev) | |
1744 | { | |
f0fba2ad | 1745 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1746 | |
70a7ca34 VK |
1747 | /* |
1748 | * no card, so machine driver should be registering card | |
1749 | * we should not be here in that case so ret error | |
1750 | */ | |
1751 | if (!card) | |
1752 | return -EINVAL; | |
1753 | ||
fe4085e8 | 1754 | dev_warn(&pdev->dev, |
f110bfc7 | 1755 | "ASoC: machine %s should use snd_soc_register_card()\n", |
fe4085e8 MB |
1756 | card->name); |
1757 | ||
435c5e25 MB |
1758 | /* Bodge while we unpick instantiation */ |
1759 | card->dev = &pdev->dev; | |
f0fba2ad | 1760 | |
28d528c8 | 1761 | return snd_soc_register_card(card); |
db2a4165 FM |
1762 | } |
1763 | ||
b0e26485 | 1764 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1765 | { |
1766 | int i; | |
db2a4165 | 1767 | |
b0e26485 VK |
1768 | /* make sure any delayed work runs */ |
1769 | for (i = 0; i < card->num_rtd; i++) { | |
1770 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1771 | flush_delayed_work(&rtd->delayed_work); |
b0e26485 | 1772 | } |
914dc182 | 1773 | |
b0e26485 VK |
1774 | /* remove auxiliary devices */ |
1775 | for (i = 0; i < card->num_aux_devs; i++) | |
1776 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1777 | |
b0e26485 | 1778 | /* remove and free each DAI */ |
0671fd8e | 1779 | soc_remove_dai_links(card); |
2eea392d | 1780 | |
b0e26485 | 1781 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1782 | |
b0e26485 VK |
1783 | /* remove the card */ |
1784 | if (card->remove) | |
e7361ec4 | 1785 | card->remove(card); |
a6052154 | 1786 | |
0aaae527 LPC |
1787 | snd_soc_dapm_free(&card->dapm); |
1788 | ||
b0e26485 VK |
1789 | snd_card_free(card->snd_card); |
1790 | return 0; | |
1791 | ||
1792 | } | |
1793 | ||
1794 | /* removes a socdev */ | |
1795 | static int soc_remove(struct platform_device *pdev) | |
1796 | { | |
1797 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1798 | |
c5af3a2e | 1799 | snd_soc_unregister_card(card); |
db2a4165 FM |
1800 | return 0; |
1801 | } | |
1802 | ||
6f8ab4ac | 1803 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1804 | { |
6f8ab4ac | 1805 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1806 | int i; |
51737470 MB |
1807 | |
1808 | if (!card->instantiated) | |
416356fc | 1809 | return 0; |
51737470 MB |
1810 | |
1811 | /* Flush out pmdown_time work - we actually do want to run it | |
1812 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1813 | for (i = 0; i < card->num_rtd; i++) { |
1814 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1815 | flush_delayed_work(&rtd->delayed_work); |
f0fba2ad | 1816 | } |
51737470 | 1817 | |
f0fba2ad | 1818 | snd_soc_dapm_shutdown(card); |
416356fc | 1819 | |
988e8cc4 NC |
1820 | /* deactivate pins to sleep state */ |
1821 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
1822 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
1823 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1824 | int j; | |
1825 | ||
988e8cc4 | 1826 | pinctrl_pm_select_sleep_state(cpu_dai->dev); |
88bd870f BC |
1827 | for (j = 0; j < rtd->num_codecs; j++) { |
1828 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
1829 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
1830 | } | |
988e8cc4 NC |
1831 | } |
1832 | ||
416356fc | 1833 | return 0; |
51737470 | 1834 | } |
6f8ab4ac | 1835 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1836 | |
6f8ab4ac | 1837 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1838 | .suspend = snd_soc_suspend, |
1839 | .resume = snd_soc_resume, | |
1840 | .freeze = snd_soc_suspend, | |
1841 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1842 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1843 | .restore = snd_soc_resume, |
416356fc | 1844 | }; |
deb2607e | 1845 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1846 | |
db2a4165 FM |
1847 | /* ASoC platform driver */ |
1848 | static struct platform_driver soc_driver = { | |
1849 | .driver = { | |
1850 | .name = "soc-audio", | |
6f8ab4ac | 1851 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1852 | }, |
1853 | .probe = soc_probe, | |
1854 | .remove = soc_remove, | |
db2a4165 FM |
1855 | }; |
1856 | ||
db2a4165 FM |
1857 | /** |
1858 | * snd_soc_cnew - create new control | |
1859 | * @_template: control template | |
1860 | * @data: control private data | |
ac11a2b3 | 1861 | * @long_name: control long name |
efb7ac3f | 1862 | * @prefix: control name prefix |
db2a4165 FM |
1863 | * |
1864 | * Create a new mixer control from a template control. | |
1865 | * | |
1866 | * Returns 0 for success, else error. | |
1867 | */ | |
1868 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 1869 | void *data, const char *long_name, |
efb7ac3f | 1870 | const char *prefix) |
db2a4165 FM |
1871 | { |
1872 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1873 | struct snd_kcontrol *kcontrol; |
1874 | char *name = NULL; | |
db2a4165 FM |
1875 | |
1876 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1877 | template.index = 0; |
1878 | ||
efb7ac3f MB |
1879 | if (!long_name) |
1880 | long_name = template.name; | |
1881 | ||
1882 | if (prefix) { | |
2b581074 | 1883 | name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); |
efb7ac3f MB |
1884 | if (!name) |
1885 | return NULL; | |
1886 | ||
efb7ac3f MB |
1887 | template.name = name; |
1888 | } else { | |
1889 | template.name = long_name; | |
1890 | } | |
1891 | ||
1892 | kcontrol = snd_ctl_new1(&template, data); | |
1893 | ||
1894 | kfree(name); | |
1895 | ||
1896 | return kcontrol; | |
db2a4165 FM |
1897 | } |
1898 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1899 | ||
022658be LG |
1900 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
1901 | const struct snd_kcontrol_new *controls, int num_controls, | |
1902 | const char *prefix, void *data) | |
1903 | { | |
1904 | int err, i; | |
1905 | ||
1906 | for (i = 0; i < num_controls; i++) { | |
1907 | const struct snd_kcontrol_new *control = &controls[i]; | |
1908 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
1909 | control->name, prefix)); | |
1910 | if (err < 0) { | |
f110bfc7 LG |
1911 | dev_err(dev, "ASoC: Failed to add %s: %d\n", |
1912 | control->name, err); | |
022658be LG |
1913 | return err; |
1914 | } | |
1915 | } | |
1916 | ||
1917 | return 0; | |
1918 | } | |
1919 | ||
4fefd698 DP |
1920 | struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, |
1921 | const char *name) | |
1922 | { | |
1923 | struct snd_card *card = soc_card->snd_card; | |
1924 | struct snd_kcontrol *kctl; | |
1925 | ||
1926 | if (unlikely(!name)) | |
1927 | return NULL; | |
1928 | ||
1929 | list_for_each_entry(kctl, &card->controls, list) | |
1930 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) | |
1931 | return kctl; | |
1932 | return NULL; | |
1933 | } | |
1934 | EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); | |
1935 | ||
0f2780ad LPC |
1936 | /** |
1937 | * snd_soc_add_component_controls - Add an array of controls to a component. | |
1938 | * | |
1939 | * @component: Component to add controls to | |
1940 | * @controls: Array of controls to add | |
1941 | * @num_controls: Number of elements in the array | |
1942 | * | |
1943 | * Return: 0 for success, else error. | |
1944 | */ | |
1945 | int snd_soc_add_component_controls(struct snd_soc_component *component, | |
1946 | const struct snd_kcontrol_new *controls, unsigned int num_controls) | |
1947 | { | |
1948 | struct snd_card *card = component->card->snd_card; | |
1949 | ||
1950 | return snd_soc_add_controls(card, component->dev, controls, | |
1951 | num_controls, component->name_prefix, component); | |
1952 | } | |
1953 | EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); | |
1954 | ||
3e8e1952 | 1955 | /** |
022658be LG |
1956 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
1957 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
1958 | * duplicating this code. |
1959 | * | |
1960 | * @codec: codec to add controls to | |
1961 | * @controls: array of controls to add | |
1962 | * @num_controls: number of elements in the array | |
1963 | * | |
1964 | * Return 0 for success, else error. | |
1965 | */ | |
022658be | 1966 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
0f2780ad | 1967 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
3e8e1952 | 1968 | { |
0f2780ad LPC |
1969 | return snd_soc_add_component_controls(&codec->component, controls, |
1970 | num_controls); | |
3e8e1952 | 1971 | } |
022658be | 1972 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 1973 | |
a491a5c8 LG |
1974 | /** |
1975 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 1976 | * Convenience function to add a list of controls. |
a491a5c8 LG |
1977 | * |
1978 | * @platform: platform to add controls to | |
1979 | * @controls: array of controls to add | |
1980 | * @num_controls: number of elements in the array | |
1981 | * | |
1982 | * Return 0 for success, else error. | |
1983 | */ | |
1984 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
0f2780ad | 1985 | const struct snd_kcontrol_new *controls, unsigned int num_controls) |
a491a5c8 | 1986 | { |
0f2780ad LPC |
1987 | return snd_soc_add_component_controls(&platform->component, controls, |
1988 | num_controls); | |
a491a5c8 LG |
1989 | } |
1990 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
1991 | ||
022658be LG |
1992 | /** |
1993 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
1994 | * Convenience function to add a list of controls. | |
1995 | * | |
1996 | * @soc_card: SoC card to add controls to | |
1997 | * @controls: array of controls to add | |
1998 | * @num_controls: number of elements in the array | |
1999 | * | |
2000 | * Return 0 for success, else error. | |
2001 | */ | |
2002 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2003 | const struct snd_kcontrol_new *controls, int num_controls) | |
2004 | { | |
2005 | struct snd_card *card = soc_card->snd_card; | |
2006 | ||
2007 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2008 | NULL, soc_card); | |
2009 | } | |
2010 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2011 | ||
2012 | /** | |
2013 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2014 | * Convienience function to add a list of controls. | |
2015 | * | |
2016 | * @dai: DAI to add controls to | |
2017 | * @controls: array of controls to add | |
2018 | * @num_controls: number of elements in the array | |
2019 | * | |
2020 | * Return 0 for success, else error. | |
2021 | */ | |
2022 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2023 | const struct snd_kcontrol_new *controls, int num_controls) | |
2024 | { | |
313665b9 | 2025 | struct snd_card *card = dai->component->card->snd_card; |
022658be LG |
2026 | |
2027 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2028 | NULL, dai); | |
2029 | } | |
2030 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2031 | ||
8c6529db LG |
2032 | /** |
2033 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2034 | * @dai: DAI | |
2035 | * @clk_id: DAI specific clock ID | |
2036 | * @freq: new clock frequency in Hz | |
2037 | * @dir: new clock direction - input/output. | |
2038 | * | |
2039 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2040 | */ | |
2041 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2042 | unsigned int freq, int dir) | |
2043 | { | |
f0fba2ad LG |
2044 | if (dai->driver && dai->driver->ops->set_sysclk) |
2045 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2046 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2047 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2048 | freq, dir); |
8c6529db | 2049 | else |
1104a9c8 | 2050 | return -ENOTSUPP; |
8c6529db LG |
2051 | } |
2052 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2053 | ||
ec4ee52a MB |
2054 | /** |
2055 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2056 | * @codec: CODEC | |
2057 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2058 | * @source: Source for the clock |
ec4ee52a MB |
2059 | * @freq: new clock frequency in Hz |
2060 | * @dir: new clock direction - input/output. | |
2061 | * | |
2062 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2063 | */ | |
2064 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2065 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2066 | { |
2067 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2068 | return codec->driver->set_sysclk(codec, clk_id, source, |
2069 | freq, dir); | |
ec4ee52a | 2070 | else |
1104a9c8 | 2071 | return -ENOTSUPP; |
ec4ee52a MB |
2072 | } |
2073 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2074 | ||
8c6529db LG |
2075 | /** |
2076 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2077 | * @dai: DAI | |
ac11a2b3 | 2078 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2079 | * @div: new clock divisor. |
2080 | * | |
2081 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2082 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2083 | * and frame clocks as low as possible to save system power. | |
2084 | */ | |
2085 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2086 | int div_id, int div) | |
2087 | { | |
f0fba2ad LG |
2088 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2089 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2090 | else |
2091 | return -EINVAL; | |
2092 | } | |
2093 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2094 | ||
2095 | /** | |
2096 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2097 | * @dai: DAI | |
2098 | * @pll_id: DAI specific PLL ID | |
85488037 | 2099 | * @source: DAI specific source for the PLL |
8c6529db LG |
2100 | * @freq_in: PLL input clock frequency in Hz |
2101 | * @freq_out: requested PLL output clock frequency in Hz | |
2102 | * | |
2103 | * Configures and enables PLL to generate output clock based on input clock. | |
2104 | */ | |
85488037 MB |
2105 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2106 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2107 | { |
f0fba2ad LG |
2108 | if (dai->driver && dai->driver->ops->set_pll) |
2109 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2110 | freq_in, freq_out); |
ec4ee52a MB |
2111 | else if (dai->codec && dai->codec->driver->set_pll) |
2112 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2113 | freq_in, freq_out); | |
8c6529db LG |
2114 | else |
2115 | return -EINVAL; | |
2116 | } | |
2117 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2118 | ||
ec4ee52a MB |
2119 | /* |
2120 | * snd_soc_codec_set_pll - configure codec PLL. | |
2121 | * @codec: CODEC | |
2122 | * @pll_id: DAI specific PLL ID | |
2123 | * @source: DAI specific source for the PLL | |
2124 | * @freq_in: PLL input clock frequency in Hz | |
2125 | * @freq_out: requested PLL output clock frequency in Hz | |
2126 | * | |
2127 | * Configures and enables PLL to generate output clock based on input clock. | |
2128 | */ | |
2129 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2130 | unsigned int freq_in, unsigned int freq_out) | |
2131 | { | |
2132 | if (codec->driver->set_pll) | |
2133 | return codec->driver->set_pll(codec, pll_id, source, | |
2134 | freq_in, freq_out); | |
2135 | else | |
2136 | return -EINVAL; | |
2137 | } | |
2138 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2139 | ||
e54cf76b LG |
2140 | /** |
2141 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. | |
2142 | * @dai: DAI | |
231b86b1 | 2143 | * @ratio: Ratio of BCLK to Sample rate. |
e54cf76b LG |
2144 | * |
2145 | * Configures the DAI for a preset BCLK to sample rate ratio. | |
2146 | */ | |
2147 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) | |
2148 | { | |
2149 | if (dai->driver && dai->driver->ops->set_bclk_ratio) | |
2150 | return dai->driver->ops->set_bclk_ratio(dai, ratio); | |
2151 | else | |
2152 | return -EINVAL; | |
2153 | } | |
2154 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); | |
2155 | ||
8c6529db LG |
2156 | /** |
2157 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2158 | * @dai: DAI | |
8c6529db LG |
2159 | * @fmt: SND_SOC_DAIFMT_ format value. |
2160 | * | |
2161 | * Configures the DAI hardware format and clocking. | |
2162 | */ | |
2163 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2164 | { | |
5e4ba569 | 2165 | if (dai->driver == NULL) |
8c6529db | 2166 | return -EINVAL; |
5e4ba569 SG |
2167 | if (dai->driver->ops->set_fmt == NULL) |
2168 | return -ENOTSUPP; | |
2169 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2170 | } |
2171 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2172 | ||
89c67857 | 2173 | /** |
e5c21514 | 2174 | * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. |
89c67857 XL |
2175 | * @slots: Number of slots in use. |
2176 | * @tx_mask: bitmask representing active TX slots. | |
2177 | * @rx_mask: bitmask representing active RX slots. | |
2178 | * | |
2179 | * Generates the TDM tx and rx slot default masks for DAI. | |
2180 | */ | |
e5c21514 | 2181 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
89c67857 XL |
2182 | unsigned int *tx_mask, |
2183 | unsigned int *rx_mask) | |
2184 | { | |
2185 | if (*tx_mask || *rx_mask) | |
2186 | return 0; | |
2187 | ||
2188 | if (!slots) | |
2189 | return -EINVAL; | |
2190 | ||
2191 | *tx_mask = (1 << slots) - 1; | |
2192 | *rx_mask = (1 << slots) - 1; | |
2193 | ||
2194 | return 0; | |
2195 | } | |
2196 | ||
8c6529db | 2197 | /** |
e46c9366 LPC |
2198 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
2199 | * @dai: The DAI to configure | |
a5479e38 DR |
2200 | * @tx_mask: bitmask representing active TX slots. |
2201 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2202 | * @slots: Number of slots in use. |
a5479e38 | 2203 | * @slot_width: Width in bits for each slot. |
8c6529db | 2204 | * |
e46c9366 LPC |
2205 | * This function configures the specified DAI for TDM operation. @slot contains |
2206 | * the total number of slots of the TDM stream and @slot_with the width of each | |
2207 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the | |
2208 | * active slots of the TDM stream for the specified DAI, i.e. which slots the | |
2209 | * DAI should write to or read from. If a bit is set the corresponding slot is | |
2210 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to | |
2211 | * the first slot, bit 1 to the second slot and so on. The first active slot | |
2212 | * maps to the first channel of the DAI, the second active slot to the second | |
2213 | * channel and so on. | |
2214 | * | |
2215 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, | |
2216 | * @rx_mask and @slot_width will be ignored. | |
2217 | * | |
2218 | * Returns 0 on success, a negative error code otherwise. | |
8c6529db LG |
2219 | */ |
2220 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2221 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2222 | { |
e5c21514 XL |
2223 | if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask) |
2224 | dai->driver->ops->xlate_tdm_slot_mask(slots, | |
89c67857 XL |
2225 | &tx_mask, &rx_mask); |
2226 | else | |
e5c21514 | 2227 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
89c67857 | 2228 | |
88bd870f BC |
2229 | dai->tx_mask = tx_mask; |
2230 | dai->rx_mask = rx_mask; | |
2231 | ||
f0fba2ad LG |
2232 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2233 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2234 | slots, slot_width); |
8c6529db | 2235 | else |
b2cbb6e1 | 2236 | return -ENOTSUPP; |
8c6529db LG |
2237 | } |
2238 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2239 | ||
472df3cb BS |
2240 | /** |
2241 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2242 | * @dai: DAI | |
2243 | * @tx_num: how many TX channels | |
2244 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2245 | * 0~num-1 uses | |
2246 | * @rx_num: how many RX channels | |
2247 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2248 | * 0~num-1 uses | |
2249 | * | |
2250 | * configure the relationship between channel number and TDM slot number. | |
2251 | */ | |
2252 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2253 | unsigned int tx_num, unsigned int *tx_slot, | |
2254 | unsigned int rx_num, unsigned int *rx_slot) | |
2255 | { | |
f0fba2ad LG |
2256 | if (dai->driver && dai->driver->ops->set_channel_map) |
2257 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2258 | rx_num, rx_slot); |
2259 | else | |
2260 | return -EINVAL; | |
2261 | } | |
2262 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2263 | ||
8c6529db LG |
2264 | /** |
2265 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2266 | * @dai: DAI | |
2267 | * @tristate: tristate enable | |
2268 | * | |
2269 | * Tristates the DAI so that others can use it. | |
2270 | */ | |
2271 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2272 | { | |
f0fba2ad LG |
2273 | if (dai->driver && dai->driver->ops->set_tristate) |
2274 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2275 | else |
2276 | return -EINVAL; | |
2277 | } | |
2278 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2279 | ||
2280 | /** | |
2281 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2282 | * @dai: DAI | |
2283 | * @mute: mute enable | |
da18396f | 2284 | * @direction: stream to mute |
8c6529db LG |
2285 | * |
2286 | * Mutes the DAI DAC. | |
2287 | */ | |
da18396f MB |
2288 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
2289 | int direction) | |
8c6529db | 2290 | { |
da18396f MB |
2291 | if (!dai->driver) |
2292 | return -ENOTSUPP; | |
2293 | ||
2294 | if (dai->driver->ops->mute_stream) | |
2295 | return dai->driver->ops->mute_stream(dai, mute, direction); | |
2296 | else if (direction == SNDRV_PCM_STREAM_PLAYBACK && | |
2297 | dai->driver->ops->digital_mute) | |
f0fba2ad | 2298 | return dai->driver->ops->digital_mute(dai, mute); |
8c6529db | 2299 | else |
04570c62 | 2300 | return -ENOTSUPP; |
8c6529db LG |
2301 | } |
2302 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2303 | ||
88bd870f BC |
2304 | static int snd_soc_init_multicodec(struct snd_soc_card *card, |
2305 | struct snd_soc_dai_link *dai_link) | |
2306 | { | |
2307 | /* Legacy codec/codec_dai link is a single entry in multicodec */ | |
2308 | if (dai_link->codec_name || dai_link->codec_of_node || | |
2309 | dai_link->codec_dai_name) { | |
2310 | dai_link->num_codecs = 1; | |
2311 | ||
2312 | dai_link->codecs = devm_kzalloc(card->dev, | |
2313 | sizeof(struct snd_soc_dai_link_component), | |
2314 | GFP_KERNEL); | |
2315 | if (!dai_link->codecs) | |
2316 | return -ENOMEM; | |
2317 | ||
2318 | dai_link->codecs[0].name = dai_link->codec_name; | |
2319 | dai_link->codecs[0].of_node = dai_link->codec_of_node; | |
2320 | dai_link->codecs[0].dai_name = dai_link->codec_dai_name; | |
2321 | } | |
2322 | ||
2323 | if (!dai_link->codecs) { | |
2324 | dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); | |
2325 | return -EINVAL; | |
2326 | } | |
2327 | ||
2328 | return 0; | |
2329 | } | |
2330 | ||
c5af3a2e MB |
2331 | /** |
2332 | * snd_soc_register_card - Register a card with the ASoC core | |
2333 | * | |
ac11a2b3 | 2334 | * @card: Card to register |
c5af3a2e | 2335 | * |
c5af3a2e | 2336 | */ |
70a7ca34 | 2337 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2338 | { |
88bd870f | 2339 | int i, j, ret; |
f0fba2ad | 2340 | |
c5af3a2e MB |
2341 | if (!card->name || !card->dev) |
2342 | return -EINVAL; | |
2343 | ||
5a504963 SW |
2344 | for (i = 0; i < card->num_links; i++) { |
2345 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2346 | ||
88bd870f BC |
2347 | ret = snd_soc_init_multicodec(card, link); |
2348 | if (ret) { | |
2349 | dev_err(card->dev, "ASoC: failed to init multicodec\n"); | |
2350 | return ret; | |
5a504963 | 2351 | } |
88bd870f BC |
2352 | |
2353 | for (j = 0; j < link->num_codecs; j++) { | |
2354 | /* | |
2355 | * Codec must be specified by 1 of name or OF node, | |
2356 | * not both or neither. | |
2357 | */ | |
2358 | if (!!link->codecs[j].name == | |
2359 | !!link->codecs[j].of_node) { | |
2360 | dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", | |
2361 | link->name); | |
2362 | return -EINVAL; | |
2363 | } | |
2364 | /* Codec DAI name must be specified */ | |
2365 | if (!link->codecs[j].dai_name) { | |
2366 | dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", | |
2367 | link->name); | |
2368 | return -EINVAL; | |
2369 | } | |
bc92657a | 2370 | } |
5a504963 SW |
2371 | |
2372 | /* | |
2373 | * Platform may be specified by either name or OF node, but | |
2374 | * can be left unspecified, and a dummy platform will be used. | |
2375 | */ | |
2376 | if (link->platform_name && link->platform_of_node) { | |
10e8aa9a MM |
2377 | dev_err(card->dev, |
2378 | "ASoC: Both platform name/of_node are set for %s\n", | |
2379 | link->name); | |
5a504963 SW |
2380 | return -EINVAL; |
2381 | } | |
2382 | ||
2383 | /* | |
bc92657a SW |
2384 | * CPU device may be specified by either name or OF node, but |
2385 | * can be left unspecified, and will be matched based on DAI | |
2386 | * name alone.. | |
2387 | */ | |
2388 | if (link->cpu_name && link->cpu_of_node) { | |
10e8aa9a MM |
2389 | dev_err(card->dev, |
2390 | "ASoC: Neither/both cpu name/of_node are set for %s\n", | |
2391 | link->name); | |
bc92657a SW |
2392 | return -EINVAL; |
2393 | } | |
2394 | /* | |
2395 | * At least one of CPU DAI name or CPU device name/node must be | |
2396 | * specified | |
5a504963 | 2397 | */ |
bc92657a SW |
2398 | if (!link->cpu_dai_name && |
2399 | !(link->cpu_name || link->cpu_of_node)) { | |
10e8aa9a MM |
2400 | dev_err(card->dev, |
2401 | "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", | |
2402 | link->name); | |
5a504963 SW |
2403 | return -EINVAL; |
2404 | } | |
2405 | } | |
2406 | ||
ed77cc12 MB |
2407 | dev_set_drvdata(card->dev, card); |
2408 | ||
111c6419 SW |
2409 | snd_soc_initialize_card_lists(card); |
2410 | ||
181a6892 MB |
2411 | card->rtd = devm_kzalloc(card->dev, |
2412 | sizeof(struct snd_soc_pcm_runtime) * | |
2413 | (card->num_links + card->num_aux_devs), | |
2414 | GFP_KERNEL); | |
f0fba2ad LG |
2415 | if (card->rtd == NULL) |
2416 | return -ENOMEM; | |
a7dbb603 | 2417 | card->num_rtd = 0; |
2eea392d | 2418 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad | 2419 | |
5f3484ac LPC |
2420 | for (i = 0; i < card->num_links; i++) { |
2421 | card->rtd[i].card = card; | |
f0fba2ad | 2422 | card->rtd[i].dai_link = &card->dai_link[i]; |
88bd870f BC |
2423 | card->rtd[i].codec_dais = devm_kzalloc(card->dev, |
2424 | sizeof(struct snd_soc_dai *) * | |
2425 | (card->rtd[i].dai_link->num_codecs), | |
2426 | GFP_KERNEL); | |
2427 | if (card->rtd[i].codec_dais == NULL) | |
2428 | return -ENOMEM; | |
5f3484ac LPC |
2429 | } |
2430 | ||
2431 | for (i = 0; i < card->num_aux_devs; i++) | |
2432 | card->rtd_aux[i].card = card; | |
f0fba2ad | 2433 | |
db432b41 | 2434 | INIT_LIST_HEAD(&card->dapm_dirty); |
8a978234 | 2435 | INIT_LIST_HEAD(&card->dobj_list); |
c5af3a2e | 2436 | card->instantiated = 0; |
f0fba2ad | 2437 | mutex_init(&card->mutex); |
a73fb2df | 2438 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 2439 | |
b19e6e7b MB |
2440 | ret = snd_soc_instantiate_card(card); |
2441 | if (ret != 0) | |
4e2576bd | 2442 | return ret; |
c5af3a2e | 2443 | |
988e8cc4 NC |
2444 | /* deactivate pins to sleep state */ |
2445 | for (i = 0; i < card->num_rtd; i++) { | |
88bd870f BC |
2446 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; |
2447 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2448 | int j; | |
2449 | ||
2450 | for (j = 0; j < rtd->num_codecs; j++) { | |
2451 | struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; | |
2452 | if (!codec_dai->active) | |
2453 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2454 | } | |
2455 | ||
988e8cc4 NC |
2456 | if (!cpu_dai->active) |
2457 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
2458 | } | |
2459 | ||
b19e6e7b | 2460 | return ret; |
c5af3a2e | 2461 | } |
70a7ca34 | 2462 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2463 | |
2464 | /** | |
2465 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2466 | * | |
ac11a2b3 | 2467 | * @card: Card to unregister |
c5af3a2e | 2468 | * |
c5af3a2e | 2469 | */ |
70a7ca34 | 2470 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2471 | { |
01e0df66 LPC |
2472 | if (card->instantiated) { |
2473 | card->instantiated = false; | |
1c325f77 | 2474 | snd_soc_dapm_shutdown(card); |
b0e26485 | 2475 | soc_cleanup_card_resources(card); |
8f6f9b29 | 2476 | dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); |
01e0df66 | 2477 | } |
c5af3a2e MB |
2478 | |
2479 | return 0; | |
2480 | } | |
70a7ca34 | 2481 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2482 | |
f0fba2ad LG |
2483 | /* |
2484 | * Simplify DAI link configuration by removing ".-1" from device names | |
2485 | * and sanitizing names. | |
2486 | */ | |
0b9a214a | 2487 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2488 | { |
2489 | char *found, name[NAME_SIZE]; | |
2490 | int id1, id2; | |
2491 | ||
2492 | if (dev_name(dev) == NULL) | |
2493 | return NULL; | |
2494 | ||
58818a77 | 2495 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2496 | |
2497 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2498 | found = strstr(name, dev->driver->name); | |
2499 | if (found) { | |
2500 | /* get ID */ | |
2501 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2502 | ||
2503 | /* discard ID from name if ID == -1 */ | |
2504 | if (*id == -1) | |
2505 | found[strlen(dev->driver->name)] = '\0'; | |
2506 | } | |
2507 | ||
2508 | } else { | |
2509 | /* I2C component devices are named "bus-addr" */ | |
2510 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2511 | char tmp[NAME_SIZE]; | |
2512 | ||
2513 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2514 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2515 | |
2516 | /* sanitize component name for DAI link creation */ | |
2517 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2518 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2519 | } else |
2520 | *id = 0; | |
2521 | } | |
2522 | ||
2523 | return kstrdup(name, GFP_KERNEL); | |
2524 | } | |
2525 | ||
2526 | /* | |
2527 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2528 | * any ".-1" and using the DAI name (instead of device name). | |
2529 | */ | |
2530 | static inline char *fmt_multiple_name(struct device *dev, | |
2531 | struct snd_soc_dai_driver *dai_drv) | |
2532 | { | |
2533 | if (dai_drv->name == NULL) { | |
10e8aa9a MM |
2534 | dev_err(dev, |
2535 | "ASoC: error - multiple DAI %s registered with no name\n", | |
2536 | dev_name(dev)); | |
f0fba2ad LG |
2537 | return NULL; |
2538 | } | |
2539 | ||
2540 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2541 | } | |
2542 | ||
9115171a | 2543 | /** |
32c9ba54 | 2544 | * snd_soc_unregister_dai - Unregister DAIs from the ASoC core |
9115171a | 2545 | * |
32c9ba54 | 2546 | * @component: The component for which the DAIs should be unregistered |
9115171a | 2547 | */ |
32c9ba54 | 2548 | static void snd_soc_unregister_dais(struct snd_soc_component *component) |
9115171a | 2549 | { |
5c1d5f09 | 2550 | struct snd_soc_dai *dai, *_dai; |
9115171a | 2551 | |
5c1d5f09 | 2552 | list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { |
32c9ba54 LPC |
2553 | dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", |
2554 | dai->name); | |
5c1d5f09 | 2555 | list_del(&dai->list); |
32c9ba54 | 2556 | kfree(dai->name); |
f0fba2ad | 2557 | kfree(dai); |
f0fba2ad | 2558 | } |
9115171a | 2559 | } |
9115171a MB |
2560 | |
2561 | /** | |
32c9ba54 | 2562 | * snd_soc_register_dais - Register a DAI with the ASoC core |
9115171a | 2563 | * |
6106d129 LPC |
2564 | * @component: The component the DAIs are registered for |
2565 | * @dai_drv: DAI driver to use for the DAIs | |
ac11a2b3 | 2566 | * @count: Number of DAIs |
32c9ba54 LPC |
2567 | * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the |
2568 | * parent's name. | |
9115171a | 2569 | */ |
6106d129 | 2570 | static int snd_soc_register_dais(struct snd_soc_component *component, |
bb13109d LPC |
2571 | struct snd_soc_dai_driver *dai_drv, size_t count, |
2572 | bool legacy_dai_naming) | |
9115171a | 2573 | { |
6106d129 | 2574 | struct device *dev = component->dev; |
f0fba2ad | 2575 | struct snd_soc_dai *dai; |
32c9ba54 LPC |
2576 | unsigned int i; |
2577 | int ret; | |
f0fba2ad | 2578 | |
f110bfc7 | 2579 | dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count); |
9115171a | 2580 | |
bb13109d LPC |
2581 | component->dai_drv = dai_drv; |
2582 | component->num_dai = count; | |
2583 | ||
9115171a | 2584 | for (i = 0; i < count; i++) { |
f0fba2ad LG |
2585 | |
2586 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
2587 | if (dai == NULL) { |
2588 | ret = -ENOMEM; | |
2589 | goto err; | |
2590 | } | |
f0fba2ad | 2591 | |
32c9ba54 LPC |
2592 | /* |
2593 | * Back in the old days when we still had component-less DAIs, | |
2594 | * instead of having a static name, component-less DAIs would | |
2595 | * inherit the name of the parent device so it is possible to | |
2596 | * register multiple instances of the DAI. We still need to keep | |
2597 | * the same naming style even though those DAIs are not | |
2598 | * component-less anymore. | |
2599 | */ | |
9e498089 SK |
2600 | if (count == 1 && legacy_dai_naming && |
2601 | (dai_drv[i].id == 0 || dai_drv[i].name == NULL)) { | |
32c9ba54 LPC |
2602 | dai->name = fmt_single_name(dev, &dai->id); |
2603 | } else { | |
2604 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
2605 | if (dai_drv[i].id) | |
2606 | dai->id = dai_drv[i].id; | |
2607 | else | |
2608 | dai->id = i; | |
2609 | } | |
f0fba2ad LG |
2610 | if (dai->name == NULL) { |
2611 | kfree(dai); | |
32c9ba54 | 2612 | ret = -ENOMEM; |
9115171a | 2613 | goto err; |
f0fba2ad LG |
2614 | } |
2615 | ||
6106d129 | 2616 | dai->component = component; |
f0fba2ad | 2617 | dai->dev = dev; |
f0fba2ad LG |
2618 | dai->driver = &dai_drv[i]; |
2619 | if (!dai->driver->ops) | |
2620 | dai->driver->ops = &null_dai_ops; | |
2621 | ||
1438c2f6 | 2622 | list_add(&dai->list, &component->dai_list); |
054880fe | 2623 | |
32c9ba54 | 2624 | dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); |
9115171a MB |
2625 | } |
2626 | ||
2627 | return 0; | |
2628 | ||
2629 | err: | |
32c9ba54 | 2630 | snd_soc_unregister_dais(component); |
9115171a MB |
2631 | |
2632 | return ret; | |
2633 | } | |
9115171a | 2634 | |
14e8bdeb LPC |
2635 | static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, |
2636 | enum snd_soc_dapm_type type, int subseq) | |
d191bd8d | 2637 | { |
14e8bdeb | 2638 | struct snd_soc_component *component = dapm->component; |
d191bd8d | 2639 | |
14e8bdeb LPC |
2640 | component->driver->seq_notifier(component, type, subseq); |
2641 | } | |
d191bd8d | 2642 | |
14e8bdeb LPC |
2643 | static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, |
2644 | int event) | |
2645 | { | |
2646 | struct snd_soc_component *component = dapm->component; | |
d191bd8d | 2647 | |
14e8bdeb LPC |
2648 | return component->driver->stream_event(component, event); |
2649 | } | |
e2c330b9 | 2650 | |
bb13109d LPC |
2651 | static int snd_soc_component_initialize(struct snd_soc_component *component, |
2652 | const struct snd_soc_component_driver *driver, struct device *dev) | |
d191bd8d | 2653 | { |
ce0fc93a LPC |
2654 | struct snd_soc_dapm_context *dapm; |
2655 | ||
bb13109d LPC |
2656 | component->name = fmt_single_name(dev, &component->id); |
2657 | if (!component->name) { | |
2658 | dev_err(dev, "ASoC: Failed to allocate name\n"); | |
d191bd8d KM |
2659 | return -ENOMEM; |
2660 | } | |
2661 | ||
bb13109d LPC |
2662 | component->dev = dev; |
2663 | component->driver = driver; | |
61aca564 LPC |
2664 | component->probe = component->driver->probe; |
2665 | component->remove = component->driver->remove; | |
d191bd8d | 2666 | |
4890140f | 2667 | dapm = &component->dapm; |
ce0fc93a LPC |
2668 | dapm->dev = dev; |
2669 | dapm->component = component; | |
2670 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
5819c2fa | 2671 | dapm->idle_bias_off = true; |
14e8bdeb LPC |
2672 | if (driver->seq_notifier) |
2673 | dapm->seq_notifier = snd_soc_component_seq_notifier; | |
2674 | if (driver->stream_event) | |
2675 | dapm->stream_event = snd_soc_component_stream_event; | |
d191bd8d | 2676 | |
61aca564 LPC |
2677 | component->controls = driver->controls; |
2678 | component->num_controls = driver->num_controls; | |
2679 | component->dapm_widgets = driver->dapm_widgets; | |
2680 | component->num_dapm_widgets = driver->num_dapm_widgets; | |
2681 | component->dapm_routes = driver->dapm_routes; | |
2682 | component->num_dapm_routes = driver->num_dapm_routes; | |
2683 | ||
bb13109d LPC |
2684 | INIT_LIST_HEAD(&component->dai_list); |
2685 | mutex_init(&component->io_mutex); | |
d191bd8d | 2686 | |
bb13109d LPC |
2687 | return 0; |
2688 | } | |
d191bd8d | 2689 | |
20feb881 | 2690 | static void snd_soc_component_setup_regmap(struct snd_soc_component *component) |
886f5692 | 2691 | { |
20feb881 LPC |
2692 | int val_bytes = regmap_get_val_bytes(component->regmap); |
2693 | ||
2694 | /* Errors are legitimate for non-integer byte multiples */ | |
2695 | if (val_bytes > 0) | |
2696 | component->val_bytes = val_bytes; | |
2697 | } | |
2698 | ||
e874bf5f LPC |
2699 | #ifdef CONFIG_REGMAP |
2700 | ||
20feb881 LPC |
2701 | /** |
2702 | * snd_soc_component_init_regmap() - Initialize regmap instance for the component | |
2703 | * @component: The component for which to initialize the regmap instance | |
2704 | * @regmap: The regmap instance that should be used by the component | |
2705 | * | |
2706 | * This function allows deferred assignment of the regmap instance that is | |
2707 | * associated with the component. Only use this if the regmap instance is not | |
2708 | * yet ready when the component is registered. The function must also be called | |
2709 | * before the first IO attempt of the component. | |
2710 | */ | |
2711 | void snd_soc_component_init_regmap(struct snd_soc_component *component, | |
2712 | struct regmap *regmap) | |
2713 | { | |
2714 | component->regmap = regmap; | |
2715 | snd_soc_component_setup_regmap(component); | |
886f5692 | 2716 | } |
20feb881 LPC |
2717 | EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); |
2718 | ||
2719 | /** | |
2720 | * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component | |
2721 | * @component: The component for which to de-initialize the regmap instance | |
2722 | * | |
2723 | * Calls regmap_exit() on the regmap instance associated to the component and | |
2724 | * removes the regmap instance from the component. | |
2725 | * | |
2726 | * This function should only be used if snd_soc_component_init_regmap() was used | |
2727 | * to initialize the regmap instance. | |
2728 | */ | |
2729 | void snd_soc_component_exit_regmap(struct snd_soc_component *component) | |
2730 | { | |
2731 | regmap_exit(component->regmap); | |
2732 | component->regmap = NULL; | |
2733 | } | |
2734 | EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); | |
886f5692 | 2735 | |
e874bf5f | 2736 | #endif |
886f5692 | 2737 | |
bb13109d LPC |
2738 | static void snd_soc_component_add_unlocked(struct snd_soc_component *component) |
2739 | { | |
20feb881 LPC |
2740 | if (!component->write && !component->read) { |
2741 | if (!component->regmap) | |
2742 | component->regmap = dev_get_regmap(component->dev, NULL); | |
2743 | if (component->regmap) | |
2744 | snd_soc_component_setup_regmap(component); | |
2745 | } | |
886f5692 | 2746 | |
bb13109d | 2747 | list_add(&component->list, &component_list); |
8a978234 | 2748 | INIT_LIST_HEAD(&component->dobj_list); |
bb13109d | 2749 | } |
d191bd8d | 2750 | |
bb13109d LPC |
2751 | static void snd_soc_component_add(struct snd_soc_component *component) |
2752 | { | |
d191bd8d | 2753 | mutex_lock(&client_mutex); |
bb13109d | 2754 | snd_soc_component_add_unlocked(component); |
d191bd8d | 2755 | mutex_unlock(&client_mutex); |
bb13109d | 2756 | } |
d191bd8d | 2757 | |
bb13109d LPC |
2758 | static void snd_soc_component_cleanup(struct snd_soc_component *component) |
2759 | { | |
2760 | snd_soc_unregister_dais(component); | |
2761 | kfree(component->name); | |
2762 | } | |
d191bd8d | 2763 | |
bb13109d LPC |
2764 | static void snd_soc_component_del_unlocked(struct snd_soc_component *component) |
2765 | { | |
2766 | list_del(&component->list); | |
2767 | } | |
d191bd8d | 2768 | |
d191bd8d KM |
2769 | int snd_soc_register_component(struct device *dev, |
2770 | const struct snd_soc_component_driver *cmpnt_drv, | |
2771 | struct snd_soc_dai_driver *dai_drv, | |
2772 | int num_dai) | |
2773 | { | |
2774 | struct snd_soc_component *cmpnt; | |
bb13109d | 2775 | int ret; |
d191bd8d | 2776 | |
bb13109d | 2777 | cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); |
d191bd8d KM |
2778 | if (!cmpnt) { |
2779 | dev_err(dev, "ASoC: Failed to allocate memory\n"); | |
2780 | return -ENOMEM; | |
2781 | } | |
2782 | ||
bb13109d LPC |
2783 | ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); |
2784 | if (ret) | |
2785 | goto err_free; | |
2786 | ||
3d59400f | 2787 | cmpnt->ignore_pmdown_time = true; |
98e639fb | 2788 | cmpnt->registered_as_component = true; |
3d59400f | 2789 | |
bb13109d LPC |
2790 | ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); |
2791 | if (ret < 0) { | |
f42cf8d6 | 2792 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d LPC |
2793 | goto err_cleanup; |
2794 | } | |
d191bd8d | 2795 | |
bb13109d | 2796 | snd_soc_component_add(cmpnt); |
4da53393 | 2797 | |
bb13109d | 2798 | return 0; |
4da53393 | 2799 | |
bb13109d LPC |
2800 | err_cleanup: |
2801 | snd_soc_component_cleanup(cmpnt); | |
2802 | err_free: | |
2803 | kfree(cmpnt); | |
2804 | return ret; | |
4da53393 | 2805 | } |
bb13109d | 2806 | EXPORT_SYMBOL_GPL(snd_soc_register_component); |
4da53393 | 2807 | |
d191bd8d KM |
2808 | /** |
2809 | * snd_soc_unregister_component - Unregister a component from the ASoC core | |
2810 | * | |
628536ea | 2811 | * @dev: The device to unregister |
d191bd8d KM |
2812 | */ |
2813 | void snd_soc_unregister_component(struct device *dev) | |
2814 | { | |
2815 | struct snd_soc_component *cmpnt; | |
2816 | ||
34e81ab4 | 2817 | mutex_lock(&client_mutex); |
d191bd8d | 2818 | list_for_each_entry(cmpnt, &component_list, list) { |
98e639fb | 2819 | if (dev == cmpnt->dev && cmpnt->registered_as_component) |
d191bd8d KM |
2820 | goto found; |
2821 | } | |
34e81ab4 | 2822 | mutex_unlock(&client_mutex); |
d191bd8d KM |
2823 | return; |
2824 | ||
2825 | found: | |
8a978234 | 2826 | snd_soc_tplg_component_remove(cmpnt, SND_SOC_TPLG_INDEX_ALL); |
34e81ab4 LPC |
2827 | snd_soc_component_del_unlocked(cmpnt); |
2828 | mutex_unlock(&client_mutex); | |
bb13109d LPC |
2829 | snd_soc_component_cleanup(cmpnt); |
2830 | kfree(cmpnt); | |
d191bd8d KM |
2831 | } |
2832 | EXPORT_SYMBOL_GPL(snd_soc_unregister_component); | |
d191bd8d | 2833 | |
f1d45cc3 | 2834 | static int snd_soc_platform_drv_probe(struct snd_soc_component *component) |
e2c330b9 LPC |
2835 | { |
2836 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
d191bd8d | 2837 | |
f1d45cc3 | 2838 | return platform->driver->probe(platform); |
e2c330b9 LPC |
2839 | } |
2840 | ||
f1d45cc3 | 2841 | static void snd_soc_platform_drv_remove(struct snd_soc_component *component) |
e2c330b9 LPC |
2842 | { |
2843 | struct snd_soc_platform *platform = snd_soc_component_to_platform(component); | |
2844 | ||
f1d45cc3 | 2845 | platform->driver->remove(platform); |
d191bd8d | 2846 | } |
d191bd8d | 2847 | |
12a48a8c | 2848 | /** |
71a45cda LPC |
2849 | * snd_soc_add_platform - Add a platform to the ASoC core |
2850 | * @dev: The parent device for the platform | |
2851 | * @platform: The platform to add | |
7d1442b4 | 2852 | * @platform_drv: The driver for the platform |
12a48a8c | 2853 | */ |
71a45cda | 2854 | int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, |
d79e57db | 2855 | const struct snd_soc_platform_driver *platform_drv) |
12a48a8c | 2856 | { |
b37f1d12 LPC |
2857 | int ret; |
2858 | ||
bb13109d LPC |
2859 | ret = snd_soc_component_initialize(&platform->component, |
2860 | &platform_drv->component_driver, dev); | |
2861 | if (ret) | |
2862 | return ret; | |
12a48a8c | 2863 | |
f0fba2ad LG |
2864 | platform->dev = dev; |
2865 | platform->driver = platform_drv; | |
f1d45cc3 LPC |
2866 | |
2867 | if (platform_drv->probe) | |
2868 | platform->component.probe = snd_soc_platform_drv_probe; | |
2869 | if (platform_drv->remove) | |
2870 | platform->component.remove = snd_soc_platform_drv_remove; | |
12a48a8c | 2871 | |
81c7cfd1 LPC |
2872 | #ifdef CONFIG_DEBUG_FS |
2873 | platform->component.debugfs_prefix = "platform"; | |
2874 | #endif | |
12a48a8c MB |
2875 | |
2876 | mutex_lock(&client_mutex); | |
bb13109d | 2877 | snd_soc_component_add_unlocked(&platform->component); |
12a48a8c MB |
2878 | list_add(&platform->list, &platform_list); |
2879 | mutex_unlock(&client_mutex); | |
2880 | ||
f4333203 LPC |
2881 | dev_dbg(dev, "ASoC: Registered platform '%s'\n", |
2882 | platform->component.name); | |
12a48a8c MB |
2883 | |
2884 | return 0; | |
2885 | } | |
71a45cda | 2886 | EXPORT_SYMBOL_GPL(snd_soc_add_platform); |
12a48a8c MB |
2887 | |
2888 | /** | |
71a45cda | 2889 | * snd_soc_register_platform - Register a platform with the ASoC core |
12a48a8c | 2890 | * |
628536ea JC |
2891 | * @dev: The device for the platform |
2892 | * @platform_drv: The driver for the platform | |
12a48a8c | 2893 | */ |
71a45cda LPC |
2894 | int snd_soc_register_platform(struct device *dev, |
2895 | const struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 2896 | { |
f0fba2ad | 2897 | struct snd_soc_platform *platform; |
71a45cda | 2898 | int ret; |
f0fba2ad | 2899 | |
71a45cda | 2900 | dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); |
f0fba2ad | 2901 | |
71a45cda LPC |
2902 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
2903 | if (platform == NULL) | |
2904 | return -ENOMEM; | |
2905 | ||
2906 | ret = snd_soc_add_platform(dev, platform, platform_drv); | |
2907 | if (ret) | |
2908 | kfree(platform); | |
2909 | ||
2910 | return ret; | |
2911 | } | |
2912 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2913 | ||
2914 | /** | |
2915 | * snd_soc_remove_platform - Remove a platform from the ASoC core | |
2916 | * @platform: the platform to remove | |
2917 | */ | |
2918 | void snd_soc_remove_platform(struct snd_soc_platform *platform) | |
2919 | { | |
b37f1d12 | 2920 | |
12a48a8c MB |
2921 | mutex_lock(&client_mutex); |
2922 | list_del(&platform->list); | |
bb13109d | 2923 | snd_soc_component_del_unlocked(&platform->component); |
12a48a8c MB |
2924 | mutex_unlock(&client_mutex); |
2925 | ||
71a45cda | 2926 | dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", |
f4333203 | 2927 | platform->component.name); |
decc27b0 DM |
2928 | |
2929 | snd_soc_component_cleanup(&platform->component); | |
71a45cda LPC |
2930 | } |
2931 | EXPORT_SYMBOL_GPL(snd_soc_remove_platform); | |
2932 | ||
2933 | struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) | |
2934 | { | |
2935 | struct snd_soc_platform *platform; | |
2936 | ||
34e81ab4 | 2937 | mutex_lock(&client_mutex); |
71a45cda | 2938 | list_for_each_entry(platform, &platform_list, list) { |
34e81ab4 LPC |
2939 | if (dev == platform->dev) { |
2940 | mutex_unlock(&client_mutex); | |
71a45cda | 2941 | return platform; |
34e81ab4 | 2942 | } |
71a45cda | 2943 | } |
34e81ab4 | 2944 | mutex_unlock(&client_mutex); |
71a45cda LPC |
2945 | |
2946 | return NULL; | |
2947 | } | |
2948 | EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); | |
2949 | ||
2950 | /** | |
2951 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2952 | * | |
628536ea | 2953 | * @dev: platform to unregister |
71a45cda LPC |
2954 | */ |
2955 | void snd_soc_unregister_platform(struct device *dev) | |
2956 | { | |
2957 | struct snd_soc_platform *platform; | |
2958 | ||
2959 | platform = snd_soc_lookup_platform(dev); | |
2960 | if (!platform) | |
2961 | return; | |
2962 | ||
2963 | snd_soc_remove_platform(platform); | |
f0fba2ad | 2964 | kfree(platform); |
12a48a8c MB |
2965 | } |
2966 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2967 | ||
151ab22c MB |
2968 | static u64 codec_format_map[] = { |
2969 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
2970 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
2971 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
2972 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
2973 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
2974 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
2975 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2976 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2977 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
2978 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
2979 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
2980 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
2981 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
2982 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
2983 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
2984 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
2985 | }; | |
2986 | ||
2987 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
2988 | * the endianness of the data but we're using the CPU format | |
2989 | * definitions which do need to include endianness so we ensure that | |
2990 | * codec DAIs always have both big and little endian variants set. | |
2991 | */ | |
2992 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
2993 | { | |
2994 | int i; | |
2995 | ||
2996 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
2997 | if (stream->formats & codec_format_map[i]) | |
2998 | stream->formats |= codec_format_map[i]; | |
2999 | } | |
3000 | ||
f1d45cc3 LPC |
3001 | static int snd_soc_codec_drv_probe(struct snd_soc_component *component) |
3002 | { | |
3003 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3004 | ||
3005 | return codec->driver->probe(codec); | |
3006 | } | |
3007 | ||
3008 | static void snd_soc_codec_drv_remove(struct snd_soc_component *component) | |
3009 | { | |
3010 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3011 | ||
3012 | codec->driver->remove(codec); | |
3013 | } | |
3014 | ||
e2c330b9 LPC |
3015 | static int snd_soc_codec_drv_write(struct snd_soc_component *component, |
3016 | unsigned int reg, unsigned int val) | |
3017 | { | |
3018 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3019 | ||
3020 | return codec->driver->write(codec, reg, val); | |
3021 | } | |
3022 | ||
3023 | static int snd_soc_codec_drv_read(struct snd_soc_component *component, | |
3024 | unsigned int reg, unsigned int *val) | |
3025 | { | |
3026 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); | |
3027 | ||
3028 | *val = codec->driver->read(codec, reg); | |
3029 | ||
3030 | return 0; | |
3031 | } | |
3032 | ||
68f831c2 LPC |
3033 | static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, |
3034 | enum snd_soc_bias_level level) | |
3035 | { | |
3036 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); | |
3037 | ||
3038 | return codec->driver->set_bias_level(codec, level); | |
3039 | } | |
3040 | ||
0d0cf00a MB |
3041 | /** |
3042 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3043 | * | |
628536ea JC |
3044 | * @dev: The parent device for this codec |
3045 | * @codec_drv: Codec driver | |
3046 | * @dai_drv: The associated DAI driver | |
3047 | * @num_dai: Number of DAIs | |
0d0cf00a | 3048 | */ |
f0fba2ad | 3049 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3050 | const struct snd_soc_codec_driver *codec_drv, |
3051 | struct snd_soc_dai_driver *dai_drv, | |
3052 | int num_dai) | |
0d0cf00a | 3053 | { |
4890140f | 3054 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3055 | struct snd_soc_codec *codec; |
bb13109d | 3056 | struct snd_soc_dai *dai; |
f0fba2ad | 3057 | int ret, i; |
151ab22c | 3058 | |
f0fba2ad LG |
3059 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3060 | ||
3061 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3062 | if (codec == NULL) | |
3063 | return -ENOMEM; | |
0d0cf00a | 3064 | |
f1d45cc3 | 3065 | codec->component.codec = codec; |
ce0fc93a | 3066 | |
bb13109d LPC |
3067 | ret = snd_soc_component_initialize(&codec->component, |
3068 | &codec_drv->component_driver, dev); | |
3069 | if (ret) | |
3070 | goto err_free; | |
f0fba2ad | 3071 | |
f1d45cc3 LPC |
3072 | if (codec_drv->controls) { |
3073 | codec->component.controls = codec_drv->controls; | |
3074 | codec->component.num_controls = codec_drv->num_controls; | |
3075 | } | |
3076 | if (codec_drv->dapm_widgets) { | |
3077 | codec->component.dapm_widgets = codec_drv->dapm_widgets; | |
3078 | codec->component.num_dapm_widgets = codec_drv->num_dapm_widgets; | |
3079 | } | |
3080 | if (codec_drv->dapm_routes) { | |
3081 | codec->component.dapm_routes = codec_drv->dapm_routes; | |
3082 | codec->component.num_dapm_routes = codec_drv->num_dapm_routes; | |
3083 | } | |
3084 | ||
3085 | if (codec_drv->probe) | |
3086 | codec->component.probe = snd_soc_codec_drv_probe; | |
3087 | if (codec_drv->remove) | |
3088 | codec->component.remove = snd_soc_codec_drv_remove; | |
e2c330b9 LPC |
3089 | if (codec_drv->write) |
3090 | codec->component.write = snd_soc_codec_drv_write; | |
3091 | if (codec_drv->read) | |
3092 | codec->component.read = snd_soc_codec_drv_read; | |
3d59400f | 3093 | codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
4890140f LPC |
3094 | |
3095 | dapm = snd_soc_codec_get_dapm(codec); | |
3096 | dapm->idle_bias_off = codec_drv->idle_bias_off; | |
3097 | dapm->suspend_bias_off = codec_drv->suspend_bias_off; | |
14e8bdeb | 3098 | if (codec_drv->seq_notifier) |
4890140f | 3099 | dapm->seq_notifier = codec_drv->seq_notifier; |
68f831c2 | 3100 | if (codec_drv->set_bias_level) |
4890140f | 3101 | dapm->set_bias_level = snd_soc_codec_set_bias_level; |
7a30a3db DP |
3102 | codec->dev = dev; |
3103 | codec->driver = codec_drv; | |
e2c330b9 | 3104 | codec->component.val_bytes = codec_drv->reg_word_size; |
ce6120cc | 3105 | |
81c7cfd1 LPC |
3106 | #ifdef CONFIG_DEBUG_FS |
3107 | codec->component.init_debugfs = soc_init_codec_debugfs; | |
3108 | codec->component.debugfs_prefix = "codec"; | |
3109 | #endif | |
3110 | ||
886f5692 LPC |
3111 | if (codec_drv->get_regmap) |
3112 | codec->component.regmap = codec_drv->get_regmap(dev); | |
a39f75f7 | 3113 | |
f0fba2ad LG |
3114 | for (i = 0; i < num_dai; i++) { |
3115 | fixup_codec_formats(&dai_drv[i].playback); | |
3116 | fixup_codec_formats(&dai_drv[i].capture); | |
3117 | } | |
3118 | ||
bb13109d | 3119 | ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); |
5acd7dfb | 3120 | if (ret < 0) { |
f42cf8d6 | 3121 | dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); |
bb13109d | 3122 | goto err_cleanup; |
26b01ccd | 3123 | } |
f0fba2ad | 3124 | |
bb13109d LPC |
3125 | list_for_each_entry(dai, &codec->component.dai_list, list) |
3126 | dai->codec = codec; | |
f0fba2ad | 3127 | |
e1328a83 | 3128 | mutex_lock(&client_mutex); |
bb13109d | 3129 | snd_soc_component_add_unlocked(&codec->component); |
054880fe | 3130 | list_add(&codec->list, &codec_list); |
e1328a83 KM |
3131 | mutex_unlock(&client_mutex); |
3132 | ||
f4333203 LPC |
3133 | dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", |
3134 | codec->component.name); | |
0d0cf00a | 3135 | return 0; |
f0fba2ad | 3136 | |
bb13109d LPC |
3137 | err_cleanup: |
3138 | snd_soc_component_cleanup(&codec->component); | |
3139 | err_free: | |
f0fba2ad LG |
3140 | kfree(codec); |
3141 | return ret; | |
0d0cf00a MB |
3142 | } |
3143 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3144 | ||
3145 | /** | |
3146 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3147 | * | |
628536ea | 3148 | * @dev: codec to unregister |
0d0cf00a | 3149 | */ |
f0fba2ad | 3150 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3151 | { |
f0fba2ad | 3152 | struct snd_soc_codec *codec; |
f0fba2ad | 3153 | |
34e81ab4 | 3154 | mutex_lock(&client_mutex); |
f0fba2ad LG |
3155 | list_for_each_entry(codec, &codec_list, list) { |
3156 | if (dev == codec->dev) | |
3157 | goto found; | |
3158 | } | |
34e81ab4 | 3159 | mutex_unlock(&client_mutex); |
f0fba2ad LG |
3160 | return; |
3161 | ||
3162 | found: | |
0d0cf00a | 3163 | list_del(&codec->list); |
bb13109d | 3164 | snd_soc_component_del_unlocked(&codec->component); |
0d0cf00a MB |
3165 | mutex_unlock(&client_mutex); |
3166 | ||
f4333203 LPC |
3167 | dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", |
3168 | codec->component.name); | |
f0fba2ad | 3169 | |
bb13109d | 3170 | snd_soc_component_cleanup(&codec->component); |
7a30a3db | 3171 | snd_soc_cache_exit(codec); |
f0fba2ad | 3172 | kfree(codec); |
0d0cf00a MB |
3173 | } |
3174 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3175 | ||
bec4fa05 SW |
3176 | /* Retrieve a card's name from device tree */ |
3177 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3178 | const char *propname) | |
3179 | { | |
7e07e7c0 | 3180 | struct device_node *np; |
bec4fa05 SW |
3181 | int ret; |
3182 | ||
7e07e7c0 TB |
3183 | if (!card->dev) { |
3184 | pr_err("card->dev is not set before calling %s\n", __func__); | |
3185 | return -EINVAL; | |
3186 | } | |
3187 | ||
3188 | np = card->dev->of_node; | |
3189 | ||
bec4fa05 SW |
3190 | ret = of_property_read_string_index(np, propname, 0, &card->name); |
3191 | /* | |
3192 | * EINVAL means the property does not exist. This is fine providing | |
3193 | * card->name was previously set, which is checked later in | |
3194 | * snd_soc_register_card. | |
3195 | */ | |
3196 | if (ret < 0 && ret != -EINVAL) { | |
3197 | dev_err(card->dev, | |
f110bfc7 | 3198 | "ASoC: Property '%s' could not be read: %d\n", |
bec4fa05 SW |
3199 | propname, ret); |
3200 | return ret; | |
3201 | } | |
3202 | ||
3203 | return 0; | |
3204 | } | |
3205 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3206 | ||
9a6d4860 XL |
3207 | static const struct snd_soc_dapm_widget simple_widgets[] = { |
3208 | SND_SOC_DAPM_MIC("Microphone", NULL), | |
3209 | SND_SOC_DAPM_LINE("Line", NULL), | |
3210 | SND_SOC_DAPM_HP("Headphone", NULL), | |
3211 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
3212 | }; | |
3213 | ||
3214 | int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, | |
3215 | const char *propname) | |
3216 | { | |
3217 | struct device_node *np = card->dev->of_node; | |
3218 | struct snd_soc_dapm_widget *widgets; | |
3219 | const char *template, *wname; | |
3220 | int i, j, num_widgets, ret; | |
3221 | ||
3222 | num_widgets = of_property_count_strings(np, propname); | |
3223 | if (num_widgets < 0) { | |
3224 | dev_err(card->dev, | |
3225 | "ASoC: Property '%s' does not exist\n", propname); | |
3226 | return -EINVAL; | |
3227 | } | |
3228 | if (num_widgets & 1) { | |
3229 | dev_err(card->dev, | |
3230 | "ASoC: Property '%s' length is not even\n", propname); | |
3231 | return -EINVAL; | |
3232 | } | |
3233 | ||
3234 | num_widgets /= 2; | |
3235 | if (!num_widgets) { | |
3236 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", | |
3237 | propname); | |
3238 | return -EINVAL; | |
3239 | } | |
3240 | ||
3241 | widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), | |
3242 | GFP_KERNEL); | |
3243 | if (!widgets) { | |
3244 | dev_err(card->dev, | |
3245 | "ASoC: Could not allocate memory for widgets\n"); | |
3246 | return -ENOMEM; | |
3247 | } | |
3248 | ||
3249 | for (i = 0; i < num_widgets; i++) { | |
3250 | ret = of_property_read_string_index(np, propname, | |
3251 | 2 * i, &template); | |
3252 | if (ret) { | |
3253 | dev_err(card->dev, | |
3254 | "ASoC: Property '%s' index %d read error:%d\n", | |
3255 | propname, 2 * i, ret); | |
3256 | return -EINVAL; | |
3257 | } | |
3258 | ||
3259 | for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { | |
3260 | if (!strncmp(template, simple_widgets[j].name, | |
3261 | strlen(simple_widgets[j].name))) { | |
3262 | widgets[i] = simple_widgets[j]; | |
3263 | break; | |
3264 | } | |
3265 | } | |
3266 | ||
3267 | if (j >= ARRAY_SIZE(simple_widgets)) { | |
3268 | dev_err(card->dev, | |
3269 | "ASoC: DAPM widget '%s' is not supported\n", | |
3270 | template); | |
3271 | return -EINVAL; | |
3272 | } | |
3273 | ||
3274 | ret = of_property_read_string_index(np, propname, | |
3275 | (2 * i) + 1, | |
3276 | &wname); | |
3277 | if (ret) { | |
3278 | dev_err(card->dev, | |
3279 | "ASoC: Property '%s' index %d read error:%d\n", | |
3280 | propname, (2 * i) + 1, ret); | |
3281 | return -EINVAL; | |
3282 | } | |
3283 | ||
3284 | widgets[i].name = wname; | |
3285 | } | |
3286 | ||
f23e860e NC |
3287 | card->of_dapm_widgets = widgets; |
3288 | card->num_of_dapm_widgets = num_widgets; | |
9a6d4860 XL |
3289 | |
3290 | return 0; | |
3291 | } | |
3292 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); | |
3293 | ||
89c67857 XL |
3294 | int snd_soc_of_parse_tdm_slot(struct device_node *np, |
3295 | unsigned int *slots, | |
3296 | unsigned int *slot_width) | |
3297 | { | |
3298 | u32 val; | |
3299 | int ret; | |
3300 | ||
3301 | if (of_property_read_bool(np, "dai-tdm-slot-num")) { | |
3302 | ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); | |
3303 | if (ret) | |
3304 | return ret; | |
3305 | ||
3306 | if (slots) | |
3307 | *slots = val; | |
3308 | } | |
3309 | ||
3310 | if (of_property_read_bool(np, "dai-tdm-slot-width")) { | |
3311 | ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); | |
3312 | if (ret) | |
3313 | return ret; | |
3314 | ||
3315 | if (slot_width) | |
3316 | *slot_width = val; | |
3317 | } | |
3318 | ||
3319 | return 0; | |
3320 | } | |
3321 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); | |
3322 | ||
5e3cdaa2 KM |
3323 | void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, |
3324 | struct snd_soc_codec_conf *codec_conf, | |
3325 | struct device_node *of_node, | |
3326 | const char *propname) | |
3327 | { | |
3328 | struct device_node *np = card->dev->of_node; | |
3329 | const char *str; | |
3330 | int ret; | |
3331 | ||
3332 | ret = of_property_read_string(np, propname, &str); | |
3333 | if (ret < 0) { | |
3334 | /* no prefix is not error */ | |
3335 | return; | |
3336 | } | |
3337 | ||
3338 | codec_conf->of_node = of_node; | |
3339 | codec_conf->name_prefix = str; | |
3340 | } | |
3341 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix); | |
3342 | ||
a4a54dd5 SW |
3343 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3344 | const char *propname) | |
3345 | { | |
3346 | struct device_node *np = card->dev->of_node; | |
e3b1e6a1 | 3347 | int num_routes; |
a4a54dd5 SW |
3348 | struct snd_soc_dapm_route *routes; |
3349 | int i, ret; | |
3350 | ||
3351 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3352 | if (num_routes < 0 || num_routes & 1) { |
10e8aa9a MM |
3353 | dev_err(card->dev, |
3354 | "ASoC: Property '%s' does not exist or its length is not even\n", | |
3355 | propname); | |
a4a54dd5 SW |
3356 | return -EINVAL; |
3357 | } | |
3358 | num_routes /= 2; | |
3359 | if (!num_routes) { | |
f110bfc7 | 3360 | dev_err(card->dev, "ASoC: Property '%s's length is zero\n", |
a4a54dd5 SW |
3361 | propname); |
3362 | return -EINVAL; | |
3363 | } | |
3364 | ||
e3b1e6a1 | 3365 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), |
a4a54dd5 SW |
3366 | GFP_KERNEL); |
3367 | if (!routes) { | |
3368 | dev_err(card->dev, | |
f110bfc7 | 3369 | "ASoC: Could not allocate DAPM route table\n"); |
a4a54dd5 SW |
3370 | return -EINVAL; |
3371 | } | |
3372 | ||
3373 | for (i = 0; i < num_routes; i++) { | |
3374 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3375 | 2 * i, &routes[i].sink); |
a4a54dd5 | 3376 | if (ret) { |
c871bd0b MB |
3377 | dev_err(card->dev, |
3378 | "ASoC: Property '%s' index %d could not be read: %d\n", | |
3379 | propname, 2 * i, ret); | |
a4a54dd5 SW |
3380 | return -EINVAL; |
3381 | } | |
3382 | ret = of_property_read_string_index(np, propname, | |
e3b1e6a1 | 3383 | (2 * i) + 1, &routes[i].source); |
a4a54dd5 SW |
3384 | if (ret) { |
3385 | dev_err(card->dev, | |
c871bd0b MB |
3386 | "ASoC: Property '%s' index %d could not be read: %d\n", |
3387 | propname, (2 * i) + 1, ret); | |
a4a54dd5 SW |
3388 | return -EINVAL; |
3389 | } | |
3390 | } | |
3391 | ||
f23e860e NC |
3392 | card->num_of_dapm_routes = num_routes; |
3393 | card->of_dapm_routes = routes; | |
a4a54dd5 SW |
3394 | |
3395 | return 0; | |
3396 | } | |
3397 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3398 | ||
a7930ed4 | 3399 | unsigned int snd_soc_of_parse_daifmt(struct device_node *np, |
389cb834 JS |
3400 | const char *prefix, |
3401 | struct device_node **bitclkmaster, | |
3402 | struct device_node **framemaster) | |
a7930ed4 KM |
3403 | { |
3404 | int ret, i; | |
3405 | char prop[128]; | |
3406 | unsigned int format = 0; | |
3407 | int bit, frame; | |
3408 | const char *str; | |
3409 | struct { | |
3410 | char *name; | |
3411 | unsigned int val; | |
3412 | } of_fmt_table[] = { | |
3413 | { "i2s", SND_SOC_DAIFMT_I2S }, | |
3414 | { "right_j", SND_SOC_DAIFMT_RIGHT_J }, | |
3415 | { "left_j", SND_SOC_DAIFMT_LEFT_J }, | |
3416 | { "dsp_a", SND_SOC_DAIFMT_DSP_A }, | |
3417 | { "dsp_b", SND_SOC_DAIFMT_DSP_B }, | |
3418 | { "ac97", SND_SOC_DAIFMT_AC97 }, | |
3419 | { "pdm", SND_SOC_DAIFMT_PDM}, | |
3420 | { "msb", SND_SOC_DAIFMT_MSB }, | |
3421 | { "lsb", SND_SOC_DAIFMT_LSB }, | |
a7930ed4 KM |
3422 | }; |
3423 | ||
3424 | if (!prefix) | |
3425 | prefix = ""; | |
3426 | ||
3427 | /* | |
3428 | * check "[prefix]format = xxx" | |
3429 | * SND_SOC_DAIFMT_FORMAT_MASK area | |
3430 | */ | |
3431 | snprintf(prop, sizeof(prop), "%sformat", prefix); | |
3432 | ret = of_property_read_string(np, prop, &str); | |
3433 | if (ret == 0) { | |
3434 | for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { | |
3435 | if (strcmp(str, of_fmt_table[i].name) == 0) { | |
3436 | format |= of_fmt_table[i].val; | |
3437 | break; | |
3438 | } | |
3439 | } | |
3440 | } | |
3441 | ||
3442 | /* | |
8c2d6a9f | 3443 | * check "[prefix]continuous-clock" |
a7930ed4 KM |
3444 | * SND_SOC_DAIFMT_CLOCK_MASK area |
3445 | */ | |
8c2d6a9f KM |
3446 | snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix); |
3447 | if (of_get_property(np, prop, NULL)) | |
3448 | format |= SND_SOC_DAIFMT_CONT; | |
3449 | else | |
3450 | format |= SND_SOC_DAIFMT_GATED; | |
a7930ed4 KM |
3451 | |
3452 | /* | |
3453 | * check "[prefix]bitclock-inversion" | |
3454 | * check "[prefix]frame-inversion" | |
3455 | * SND_SOC_DAIFMT_INV_MASK area | |
3456 | */ | |
3457 | snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); | |
3458 | bit = !!of_get_property(np, prop, NULL); | |
3459 | ||
3460 | snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); | |
3461 | frame = !!of_get_property(np, prop, NULL); | |
3462 | ||
3463 | switch ((bit << 4) + frame) { | |
3464 | case 0x11: | |
3465 | format |= SND_SOC_DAIFMT_IB_IF; | |
3466 | break; | |
3467 | case 0x10: | |
3468 | format |= SND_SOC_DAIFMT_IB_NF; | |
3469 | break; | |
3470 | case 0x01: | |
3471 | format |= SND_SOC_DAIFMT_NB_IF; | |
3472 | break; | |
3473 | default: | |
3474 | /* SND_SOC_DAIFMT_NB_NF is default */ | |
3475 | break; | |
3476 | } | |
3477 | ||
3478 | /* | |
3479 | * check "[prefix]bitclock-master" | |
3480 | * check "[prefix]frame-master" | |
3481 | * SND_SOC_DAIFMT_MASTER_MASK area | |
3482 | */ | |
3483 | snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); | |
3484 | bit = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3485 | if (bit && bitclkmaster) |
3486 | *bitclkmaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3487 | |
3488 | snprintf(prop, sizeof(prop), "%sframe-master", prefix); | |
3489 | frame = !!of_get_property(np, prop, NULL); | |
389cb834 JS |
3490 | if (frame && framemaster) |
3491 | *framemaster = of_parse_phandle(np, prop, 0); | |
a7930ed4 KM |
3492 | |
3493 | switch ((bit << 4) + frame) { | |
3494 | case 0x11: | |
3495 | format |= SND_SOC_DAIFMT_CBM_CFM; | |
3496 | break; | |
3497 | case 0x10: | |
3498 | format |= SND_SOC_DAIFMT_CBM_CFS; | |
3499 | break; | |
3500 | case 0x01: | |
3501 | format |= SND_SOC_DAIFMT_CBS_CFM; | |
3502 | break; | |
3503 | default: | |
3504 | format |= SND_SOC_DAIFMT_CBS_CFS; | |
3505 | break; | |
3506 | } | |
3507 | ||
3508 | return format; | |
3509 | } | |
3510 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); | |
3511 | ||
93b0f3ee JFM |
3512 | static int snd_soc_get_dai_name(struct of_phandle_args *args, |
3513 | const char **dai_name) | |
cb470087 KM |
3514 | { |
3515 | struct snd_soc_component *pos; | |
3e0aa8d8 | 3516 | struct device_node *component_of_node; |
93b0f3ee | 3517 | int ret = -EPROBE_DEFER; |
cb470087 KM |
3518 | |
3519 | mutex_lock(&client_mutex); | |
3520 | list_for_each_entry(pos, &component_list, list) { | |
3e0aa8d8 JS |
3521 | component_of_node = pos->dev->of_node; |
3522 | if (!component_of_node && pos->dev->parent) | |
3523 | component_of_node = pos->dev->parent->of_node; | |
3524 | ||
3525 | if (component_of_node != args->np) | |
cb470087 KM |
3526 | continue; |
3527 | ||
6833c452 | 3528 | if (pos->driver->of_xlate_dai_name) { |
93b0f3ee JFM |
3529 | ret = pos->driver->of_xlate_dai_name(pos, |
3530 | args, | |
3531 | dai_name); | |
6833c452 KM |
3532 | } else { |
3533 | int id = -1; | |
3534 | ||
93b0f3ee | 3535 | switch (args->args_count) { |
6833c452 KM |
3536 | case 0: |
3537 | id = 0; /* same as dai_drv[0] */ | |
3538 | break; | |
3539 | case 1: | |
93b0f3ee | 3540 | id = args->args[0]; |
6833c452 KM |
3541 | break; |
3542 | default: | |
3543 | /* not supported */ | |
3544 | break; | |
3545 | } | |
3546 | ||
3547 | if (id < 0 || id >= pos->num_dai) { | |
3548 | ret = -EINVAL; | |
3dcba280 | 3549 | continue; |
6833c452 | 3550 | } |
e41975ed XL |
3551 | |
3552 | ret = 0; | |
3553 | ||
3554 | *dai_name = pos->dai_drv[id].name; | |
3555 | if (!*dai_name) | |
3556 | *dai_name = pos->name; | |
cb470087 KM |
3557 | } |
3558 | ||
cb470087 KM |
3559 | break; |
3560 | } | |
3561 | mutex_unlock(&client_mutex); | |
93b0f3ee JFM |
3562 | return ret; |
3563 | } | |
3564 | ||
3565 | int snd_soc_of_get_dai_name(struct device_node *of_node, | |
3566 | const char **dai_name) | |
3567 | { | |
3568 | struct of_phandle_args args; | |
3569 | int ret; | |
3570 | ||
3571 | ret = of_parse_phandle_with_args(of_node, "sound-dai", | |
3572 | "#sound-dai-cells", 0, &args); | |
3573 | if (ret) | |
3574 | return ret; | |
3575 | ||
3576 | ret = snd_soc_get_dai_name(&args, dai_name); | |
cb470087 KM |
3577 | |
3578 | of_node_put(args.np); | |
3579 | ||
3580 | return ret; | |
3581 | } | |
3582 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); | |
3583 | ||
93b0f3ee JFM |
3584 | /* |
3585 | * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree | |
3586 | * @dev: Card device | |
3587 | * @of_node: Device node | |
3588 | * @dai_link: DAI link | |
3589 | * | |
3590 | * Builds an array of CODEC DAI components from the DAI link property | |
3591 | * 'sound-dai'. | |
3592 | * The array is set in the DAI link and the number of DAIs is set accordingly. | |
3593 | * The device nodes in the array (of_node) must be dereferenced by the caller. | |
3594 | * | |
3595 | * Returns 0 for success | |
3596 | */ | |
3597 | int snd_soc_of_get_dai_link_codecs(struct device *dev, | |
3598 | struct device_node *of_node, | |
3599 | struct snd_soc_dai_link *dai_link) | |
3600 | { | |
3601 | struct of_phandle_args args; | |
3602 | struct snd_soc_dai_link_component *component; | |
3603 | char *name; | |
3604 | int index, num_codecs, ret; | |
3605 | ||
3606 | /* Count the number of CODECs */ | |
3607 | name = "sound-dai"; | |
3608 | num_codecs = of_count_phandle_with_args(of_node, name, | |
3609 | "#sound-dai-cells"); | |
3610 | if (num_codecs <= 0) { | |
3611 | if (num_codecs == -ENOENT) | |
3612 | dev_err(dev, "No 'sound-dai' property\n"); | |
3613 | else | |
3614 | dev_err(dev, "Bad phandle in 'sound-dai'\n"); | |
3615 | return num_codecs; | |
3616 | } | |
3617 | component = devm_kzalloc(dev, | |
3618 | sizeof *component * num_codecs, | |
3619 | GFP_KERNEL); | |
3620 | if (!component) | |
3621 | return -ENOMEM; | |
3622 | dai_link->codecs = component; | |
3623 | dai_link->num_codecs = num_codecs; | |
3624 | ||
3625 | /* Parse the list */ | |
3626 | for (index = 0, component = dai_link->codecs; | |
3627 | index < dai_link->num_codecs; | |
3628 | index++, component++) { | |
3629 | ret = of_parse_phandle_with_args(of_node, name, | |
3630 | "#sound-dai-cells", | |
3631 | index, &args); | |
3632 | if (ret) | |
3633 | goto err; | |
3634 | component->of_node = args.np; | |
3635 | ret = snd_soc_get_dai_name(&args, &component->dai_name); | |
3636 | if (ret < 0) | |
3637 | goto err; | |
3638 | } | |
3639 | return 0; | |
3640 | err: | |
3641 | for (index = 0, component = dai_link->codecs; | |
3642 | index < dai_link->num_codecs; | |
3643 | index++, component++) { | |
3644 | if (!component->of_node) | |
3645 | break; | |
3646 | of_node_put(component->of_node); | |
3647 | component->of_node = NULL; | |
3648 | } | |
3649 | dai_link->codecs = NULL; | |
3650 | dai_link->num_codecs = 0; | |
3651 | return ret; | |
3652 | } | |
3653 | EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); | |
3654 | ||
c9b3a40f | 3655 | static int __init snd_soc_init(void) |
db2a4165 | 3656 | { |
6553bf06 | 3657 | snd_soc_debugfs_init(); |
fb257897 MB |
3658 | snd_soc_util_init(); |
3659 | ||
db2a4165 FM |
3660 | return platform_driver_register(&soc_driver); |
3661 | } | |
4abe8e16 | 3662 | module_init(snd_soc_init); |
db2a4165 | 3663 | |
7d8c16a6 | 3664 | static void __exit snd_soc_exit(void) |
db2a4165 | 3665 | { |
fb257897 | 3666 | snd_soc_util_exit(); |
6553bf06 | 3667 | snd_soc_debugfs_exit(); |
fb257897 | 3668 | |
384c89e2 | 3669 | #ifdef CONFIG_DEBUG_FS |
384c89e2 | 3670 | #endif |
3ff3f64b | 3671 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3672 | } |
db2a4165 FM |
3673 | module_exit(snd_soc_exit); |
3674 | ||
3675 | /* Module information */ | |
d331124d | 3676 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3677 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3678 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3679 | MODULE_ALIAS("platform:soc-audio"); |