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> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 | 35 | #include <sound/core.h> |
3028eb8c | 36 | #include <sound/jack.h> |
db2a4165 FM |
37 | #include <sound/pcm.h> |
38 | #include <sound/pcm_params.h> | |
39 | #include <sound/soc.h> | |
db2a4165 FM |
40 | #include <sound/initval.h> |
41 | ||
a8b1d34f MB |
42 | #define CREATE_TRACE_POINTS |
43 | #include <trace/events/asoc.h> | |
44 | ||
f0fba2ad LG |
45 | #define NAME_SIZE 32 |
46 | ||
db2a4165 | 47 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
48 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
49 | ||
384c89e2 | 50 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
51 | struct dentry *snd_soc_debugfs_root; |
52 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
53 | #endif |
54 | ||
c5af3a2e MB |
55 | static DEFINE_MUTEX(client_mutex); |
56 | static LIST_HEAD(card_list); | |
9115171a | 57 | static LIST_HEAD(dai_list); |
12a48a8c | 58 | static LIST_HEAD(platform_list); |
0d0cf00a | 59 | static LIST_HEAD(codec_list); |
c5af3a2e | 60 | |
f0fba2ad | 61 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 62 | |
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
2bc9a81e DP |
72 | /* returns the minimum number of bytes needed to represent |
73 | * a particular given value */ | |
74 | static int min_bytes_needed(unsigned long val) | |
75 | { | |
76 | int c = 0; | |
77 | int i; | |
78 | ||
79 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
80 | if (val & (1UL << i)) | |
81 | break; | |
82 | c = (sizeof val * 8) - c; | |
83 | if (!c || (c % 8)) | |
84 | c = (c + 8) / 8; | |
85 | else | |
86 | c /= 8; | |
87 | return c; | |
88 | } | |
89 | ||
2624d5fa MB |
90 | /* codec register dump */ |
91 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
92 | { | |
5164d74d | 93 | int ret, i, step = 1, count = 0; |
2bc9a81e DP |
94 | int wordsize, regsize; |
95 | ||
96 | wordsize = codec->driver->reg_word_size * 2; | |
97 | regsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; | |
2624d5fa | 98 | |
f0fba2ad | 99 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
100 | return 0; |
101 | ||
f0fba2ad LG |
102 | if (codec->driver->reg_cache_step) |
103 | step = codec->driver->reg_cache_step; | |
2624d5fa | 104 | |
f0fba2ad | 105 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
1500b7b5 | 106 | if (codec->readable_register && !codec->readable_register(codec, i)) |
2624d5fa MB |
107 | continue; |
108 | ||
2bc9a81e | 109 | count += sprintf(buf + count, "%.*x: ", regsize, i); |
2624d5fa MB |
110 | if (count >= PAGE_SIZE - 1) |
111 | break; | |
112 | ||
f0fba2ad LG |
113 | if (codec->driver->display_register) { |
114 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 115 | PAGE_SIZE - count, i); |
5164d74d MB |
116 | } else { |
117 | /* If the read fails it's almost certainly due to | |
118 | * the register being volatile and the device being | |
119 | * powered off. | |
120 | */ | |
e4f078d8 | 121 | ret = snd_soc_read(codec, i); |
5164d74d MB |
122 | if (ret >= 0) |
123 | count += snprintf(buf + count, | |
124 | PAGE_SIZE - count, | |
2bc9a81e | 125 | "%.*x", wordsize, ret); |
5164d74d MB |
126 | else |
127 | count += snprintf(buf + count, | |
128 | PAGE_SIZE - count, | |
129 | "<no data: %d>", ret); | |
130 | } | |
2624d5fa MB |
131 | |
132 | if (count >= PAGE_SIZE - 1) | |
133 | break; | |
134 | ||
135 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
136 | if (count >= PAGE_SIZE - 1) | |
137 | break; | |
138 | } | |
139 | ||
140 | /* Truncate count; min() would cause a warning */ | |
141 | if (count >= PAGE_SIZE) | |
142 | count = PAGE_SIZE - 1; | |
143 | ||
144 | return count; | |
145 | } | |
146 | static ssize_t codec_reg_show(struct device *dev, | |
147 | struct device_attribute *attr, char *buf) | |
148 | { | |
f0fba2ad LG |
149 | struct snd_soc_pcm_runtime *rtd = |
150 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
151 | ||
152 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
153 | } |
154 | ||
155 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
156 | ||
dbe21408 MB |
157 | static ssize_t pmdown_time_show(struct device *dev, |
158 | struct device_attribute *attr, char *buf) | |
159 | { | |
f0fba2ad LG |
160 | struct snd_soc_pcm_runtime *rtd = |
161 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 162 | |
f0fba2ad | 163 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
164 | } |
165 | ||
166 | static ssize_t pmdown_time_set(struct device *dev, | |
167 | struct device_attribute *attr, | |
168 | const char *buf, size_t count) | |
169 | { | |
f0fba2ad LG |
170 | struct snd_soc_pcm_runtime *rtd = |
171 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 172 | int ret; |
dbe21408 | 173 | |
c593b520 MB |
174 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
175 | if (ret) | |
176 | return ret; | |
dbe21408 MB |
177 | |
178 | return count; | |
179 | } | |
180 | ||
181 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
182 | ||
2624d5fa MB |
183 | #ifdef CONFIG_DEBUG_FS |
184 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
185 | { | |
186 | file->private_data = inode->i_private; | |
187 | return 0; | |
188 | } | |
189 | ||
190 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
191 | size_t count, loff_t *ppos) | |
192 | { | |
193 | ssize_t ret; | |
194 | struct snd_soc_codec *codec = file->private_data; | |
195 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
196 | if (!buf) | |
197 | return -ENOMEM; | |
198 | ret = soc_codec_reg_show(codec, buf); | |
199 | if (ret >= 0) | |
200 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
201 | kfree(buf); | |
202 | return ret; | |
203 | } | |
204 | ||
205 | static ssize_t codec_reg_write_file(struct file *file, | |
206 | const char __user *user_buf, size_t count, loff_t *ppos) | |
207 | { | |
208 | char buf[32]; | |
209 | int buf_size; | |
210 | char *start = buf; | |
211 | unsigned long reg, value; | |
212 | int step = 1; | |
213 | struct snd_soc_codec *codec = file->private_data; | |
214 | ||
215 | buf_size = min(count, (sizeof(buf)-1)); | |
216 | if (copy_from_user(buf, user_buf, buf_size)) | |
217 | return -EFAULT; | |
218 | buf[buf_size] = 0; | |
219 | ||
f0fba2ad LG |
220 | if (codec->driver->reg_cache_step) |
221 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
222 | |
223 | while (*start == ' ') | |
224 | start++; | |
225 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 226 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
227 | return -EINVAL; |
228 | while (*start == ' ') | |
229 | start++; | |
230 | if (strict_strtoul(start, 16, &value)) | |
231 | return -EINVAL; | |
0d51a9cb MB |
232 | |
233 | /* Userspace has been fiddling around behind the kernel's back */ | |
234 | add_taint(TAINT_USER); | |
235 | ||
e4f078d8 | 236 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
237 | return buf_size; |
238 | } | |
239 | ||
240 | static const struct file_operations codec_reg_fops = { | |
241 | .open = codec_reg_open_file, | |
242 | .read = codec_reg_read_file, | |
243 | .write = codec_reg_write_file, | |
6038f373 | 244 | .llseek = default_llseek, |
2624d5fa MB |
245 | }; |
246 | ||
247 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
248 | { | |
d6ce4cf3 JN |
249 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
250 | ||
251 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
252 | debugfs_card_root); | |
2624d5fa MB |
253 | if (!codec->debugfs_codec_root) { |
254 | printk(KERN_WARNING | |
255 | "ASoC: Failed to create codec debugfs directory\n"); | |
256 | return; | |
257 | } | |
258 | ||
aaee8ef1 MB |
259 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
260 | &codec->cache_sync); | |
261 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
262 | &codec->cache_only); | |
263 | ||
2624d5fa MB |
264 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
265 | codec->debugfs_codec_root, | |
266 | codec, &codec_reg_fops); | |
267 | if (!codec->debugfs_reg) | |
268 | printk(KERN_WARNING | |
269 | "ASoC: Failed to create codec register debugfs file\n"); | |
270 | ||
ce6120cc | 271 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 272 | codec->debugfs_codec_root); |
ce6120cc | 273 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
274 | printk(KERN_WARNING |
275 | "Failed to create DAPM debugfs directory\n"); | |
276 | ||
ce6120cc | 277 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
278 | } |
279 | ||
280 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
281 | { | |
282 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
283 | } | |
284 | ||
c3c5a19a MB |
285 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
286 | size_t count, loff_t *ppos) | |
287 | { | |
288 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 289 | ssize_t len, ret = 0; |
c3c5a19a MB |
290 | struct snd_soc_codec *codec; |
291 | ||
292 | if (!buf) | |
293 | return -ENOMEM; | |
294 | ||
2b194f9d MB |
295 | list_for_each_entry(codec, &codec_list, list) { |
296 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
297 | codec->name); | |
298 | if (len >= 0) | |
299 | ret += len; | |
300 | if (ret > PAGE_SIZE) { | |
301 | ret = PAGE_SIZE; | |
302 | break; | |
303 | } | |
304 | } | |
c3c5a19a MB |
305 | |
306 | if (ret >= 0) | |
307 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
308 | ||
309 | kfree(buf); | |
310 | ||
311 | return ret; | |
312 | } | |
313 | ||
314 | static const struct file_operations codec_list_fops = { | |
315 | .read = codec_list_read_file, | |
316 | .llseek = default_llseek,/* read accesses f_pos */ | |
317 | }; | |
318 | ||
f3208780 MB |
319 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
320 | size_t count, loff_t *ppos) | |
321 | { | |
322 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 323 | ssize_t len, ret = 0; |
f3208780 MB |
324 | struct snd_soc_dai *dai; |
325 | ||
326 | if (!buf) | |
327 | return -ENOMEM; | |
328 | ||
2b194f9d MB |
329 | list_for_each_entry(dai, &dai_list, list) { |
330 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
331 | if (len >= 0) | |
332 | ret += len; | |
333 | if (ret > PAGE_SIZE) { | |
334 | ret = PAGE_SIZE; | |
335 | break; | |
336 | } | |
337 | } | |
f3208780 | 338 | |
2b194f9d | 339 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
340 | |
341 | kfree(buf); | |
342 | ||
343 | return ret; | |
344 | } | |
345 | ||
346 | static const struct file_operations dai_list_fops = { | |
347 | .read = dai_list_read_file, | |
348 | .llseek = default_llseek,/* read accesses f_pos */ | |
349 | }; | |
350 | ||
19c7ac27 MB |
351 | static ssize_t platform_list_read_file(struct file *file, |
352 | char __user *user_buf, | |
353 | size_t count, loff_t *ppos) | |
354 | { | |
355 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 356 | ssize_t len, ret = 0; |
19c7ac27 MB |
357 | struct snd_soc_platform *platform; |
358 | ||
359 | if (!buf) | |
360 | return -ENOMEM; | |
361 | ||
2b194f9d MB |
362 | list_for_each_entry(platform, &platform_list, list) { |
363 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
364 | platform->name); | |
365 | if (len >= 0) | |
366 | ret += len; | |
367 | if (ret > PAGE_SIZE) { | |
368 | ret = PAGE_SIZE; | |
369 | break; | |
370 | } | |
371 | } | |
19c7ac27 | 372 | |
2b194f9d | 373 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
374 | |
375 | kfree(buf); | |
376 | ||
377 | return ret; | |
378 | } | |
379 | ||
380 | static const struct file_operations platform_list_fops = { | |
381 | .read = platform_list_read_file, | |
382 | .llseek = default_llseek,/* read accesses f_pos */ | |
383 | }; | |
384 | ||
a6052154 JN |
385 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
386 | { | |
387 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 388 | snd_soc_debugfs_root); |
3a45b867 | 389 | if (!card->debugfs_card_root) { |
a6052154 JN |
390 | dev_warn(card->dev, |
391 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
392 | return; |
393 | } | |
394 | ||
395 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
396 | card->debugfs_card_root, | |
397 | &card->pop_time); | |
398 | if (!card->debugfs_pop_time) | |
399 | dev_warn(card->dev, | |
400 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
401 | } |
402 | ||
403 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
404 | { | |
405 | debugfs_remove_recursive(card->debugfs_card_root); | |
406 | } | |
407 | ||
2624d5fa MB |
408 | #else |
409 | ||
410 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
411 | { | |
412 | } | |
413 | ||
414 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
415 | { | |
416 | } | |
b95fccbc AL |
417 | |
418 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
419 | { | |
420 | } | |
421 | ||
422 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
423 | { | |
424 | } | |
2624d5fa MB |
425 | #endif |
426 | ||
db2a4165 FM |
427 | #ifdef CONFIG_SND_SOC_AC97_BUS |
428 | /* unregister ac97 codec */ | |
429 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
430 | { | |
431 | if (codec->ac97->dev.bus) | |
432 | device_unregister(&codec->ac97->dev); | |
433 | return 0; | |
434 | } | |
435 | ||
436 | /* stop no dev release warning */ | |
437 | static void soc_ac97_device_release(struct device *dev){} | |
438 | ||
439 | /* register ac97 codec to bus */ | |
440 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
441 | { | |
442 | int err; | |
443 | ||
444 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 445 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
446 | codec->ac97->dev.release = soc_ac97_device_release; |
447 | ||
bb072bf0 | 448 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 449 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
450 | err = device_register(&codec->ac97->dev); |
451 | if (err < 0) { | |
452 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
453 | codec->ac97->dev.bus = NULL; | |
454 | return err; | |
455 | } | |
456 | return 0; | |
457 | } | |
458 | #endif | |
459 | ||
06f409d7 MB |
460 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
461 | { | |
462 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
463 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
464 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
465 | int ret; |
466 | ||
f0fba2ad LG |
467 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
468 | rtd->dai_link->symmetric_rates) { | |
469 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
470 | rtd->rate); | |
06f409d7 MB |
471 | |
472 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
473 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
474 | rtd->rate, |
475 | rtd->rate); | |
06f409d7 | 476 | if (ret < 0) { |
f0fba2ad | 477 | dev_err(&rtd->dev, |
06f409d7 MB |
478 | "Unable to apply rate symmetry constraint: %d\n", ret); |
479 | return ret; | |
480 | } | |
481 | } | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
db2a4165 FM |
486 | /* |
487 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
488 | * then initialized and any private data can be allocated. This also calls | |
489 | * startup for the cpu DAI, platform, machine and codec DAI. | |
490 | */ | |
491 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
492 | { | |
493 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 494 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
495 | struct snd_soc_platform *platform = rtd->platform; |
496 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
497 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
498 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
499 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
500 | int ret = 0; |
501 | ||
502 | mutex_lock(&pcm_mutex); | |
503 | ||
504 | /* startup the audio subsystem */ | |
f0fba2ad LG |
505 | if (cpu_dai->driver->ops->startup) { |
506 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
507 | if (ret < 0) { |
508 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 509 | cpu_dai->name); |
db2a4165 FM |
510 | goto out; |
511 | } | |
512 | } | |
513 | ||
f0fba2ad LG |
514 | if (platform->driver->ops->open) { |
515 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
516 | if (ret < 0) { |
517 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
518 | goto platform_err; | |
519 | } | |
520 | } | |
521 | ||
f0fba2ad LG |
522 | if (codec_dai->driver->ops->startup) { |
523 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 524 | if (ret < 0) { |
cb666e5b LG |
525 | printk(KERN_ERR "asoc: can't open codec %s\n", |
526 | codec_dai->name); | |
527 | goto codec_dai_err; | |
db2a4165 FM |
528 | } |
529 | } | |
530 | ||
f0fba2ad LG |
531 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
532 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 533 | if (ret < 0) { |
f0fba2ad | 534 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 535 | goto machine_err; |
db2a4165 FM |
536 | } |
537 | } | |
538 | ||
a00f90f9 | 539 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
540 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
541 | runtime->hw.rate_min = | |
f0fba2ad LG |
542 | max(codec_dai_drv->playback.rate_min, |
543 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 544 | runtime->hw.rate_max = |
f0fba2ad LG |
545 | min(codec_dai_drv->playback.rate_max, |
546 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 547 | runtime->hw.channels_min = |
f0fba2ad LG |
548 | max(codec_dai_drv->playback.channels_min, |
549 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 550 | runtime->hw.channels_max = |
f0fba2ad LG |
551 | min(codec_dai_drv->playback.channels_max, |
552 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 553 | runtime->hw.formats = |
f0fba2ad | 554 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 555 | runtime->hw.rates = |
f0fba2ad LG |
556 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
557 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 558 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
559 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
560 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 561 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 562 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
563 | } else { |
564 | runtime->hw.rate_min = | |
f0fba2ad LG |
565 | max(codec_dai_drv->capture.rate_min, |
566 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 567 | runtime->hw.rate_max = |
f0fba2ad LG |
568 | min(codec_dai_drv->capture.rate_max, |
569 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 570 | runtime->hw.channels_min = |
f0fba2ad LG |
571 | max(codec_dai_drv->capture.channels_min, |
572 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 573 | runtime->hw.channels_max = |
f0fba2ad LG |
574 | min(codec_dai_drv->capture.channels_max, |
575 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 576 | runtime->hw.formats = |
f0fba2ad | 577 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 578 | runtime->hw.rates = |
f0fba2ad LG |
579 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
580 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 581 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
582 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
583 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 584 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 585 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
586 | } |
587 | ||
588 | snd_pcm_limit_hw_rates(runtime); | |
589 | if (!runtime->hw.rates) { | |
590 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 591 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 592 | goto config_err; |
db2a4165 FM |
593 | } |
594 | if (!runtime->hw.formats) { | |
595 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 596 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 597 | goto config_err; |
db2a4165 FM |
598 | } |
599 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
600 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 601 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 602 | goto config_err; |
db2a4165 FM |
603 | } |
604 | ||
06f409d7 MB |
605 | /* Symmetry only applies if we've already got an active stream. */ |
606 | if (cpu_dai->active || codec_dai->active) { | |
607 | ret = soc_pcm_apply_symmetry(substream); | |
608 | if (ret != 0) | |
bb1c0478 | 609 | goto config_err; |
06f409d7 MB |
610 | } |
611 | ||
f0fba2ad LG |
612 | pr_debug("asoc: %s <-> %s info:\n", |
613 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
614 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
615 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
616 | runtime->hw.channels_max); | |
617 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
618 | runtime->hw.rate_max); | |
db2a4165 | 619 | |
14dc5734 | 620 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
621 | cpu_dai->playback_active++; |
622 | codec_dai->playback_active++; | |
14dc5734 | 623 | } else { |
f0fba2ad LG |
624 | cpu_dai->capture_active++; |
625 | codec_dai->capture_active++; | |
14dc5734 JB |
626 | } |
627 | cpu_dai->active++; | |
628 | codec_dai->active++; | |
f0fba2ad | 629 | rtd->codec->active++; |
db2a4165 FM |
630 | mutex_unlock(&pcm_mutex); |
631 | return 0; | |
632 | ||
bb1c0478 | 633 | config_err: |
f0fba2ad LG |
634 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
635 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 636 | |
bb1c0478 | 637 | machine_err: |
f0fba2ad LG |
638 | if (codec_dai->driver->ops->shutdown) |
639 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 640 | |
cb666e5b | 641 | codec_dai_err: |
f0fba2ad LG |
642 | if (platform->driver->ops->close) |
643 | platform->driver->ops->close(substream); | |
db2a4165 FM |
644 | |
645 | platform_err: | |
f0fba2ad LG |
646 | if (cpu_dai->driver->ops->shutdown) |
647 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
648 | out: |
649 | mutex_unlock(&pcm_mutex); | |
650 | return ret; | |
651 | } | |
652 | ||
653 | /* | |
3a4fa0a2 | 654 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
655 | * This is to ensure there are no pops or clicks in between any music tracks |
656 | * due to DAPM power cycling. | |
657 | */ | |
4484bb2e | 658 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 659 | { |
f0fba2ad LG |
660 | struct snd_soc_pcm_runtime *rtd = |
661 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
662 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
663 | |
664 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
665 | |
666 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
667 | codec_dai->driver->playback.stream_name, | |
668 | codec_dai->playback_active ? "active" : "inactive", | |
669 | codec_dai->pop_wait ? "yes" : "no"); | |
670 | ||
671 | /* are we waiting on this codec DAI stream */ | |
672 | if (codec_dai->pop_wait == 1) { | |
673 | codec_dai->pop_wait = 0; | |
674 | snd_soc_dapm_stream_event(rtd, | |
675 | codec_dai->driver->playback.stream_name, | |
676 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 677 | } |
f0fba2ad | 678 | |
db2a4165 FM |
679 | mutex_unlock(&pcm_mutex); |
680 | } | |
681 | ||
682 | /* | |
683 | * Called by ALSA when a PCM substream is closed. Private data can be | |
684 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
685 | * shutdown. | |
686 | */ | |
687 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
688 | { | |
689 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
690 | struct snd_soc_platform *platform = rtd->platform; |
691 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
692 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
693 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
694 | |
695 | mutex_lock(&pcm_mutex); | |
696 | ||
14dc5734 | 697 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
698 | cpu_dai->playback_active--; |
699 | codec_dai->playback_active--; | |
14dc5734 | 700 | } else { |
f0fba2ad LG |
701 | cpu_dai->capture_active--; |
702 | codec_dai->capture_active--; | |
db2a4165 | 703 | } |
14dc5734 JB |
704 | |
705 | cpu_dai->active--; | |
706 | codec_dai->active--; | |
db2a4165 FM |
707 | codec->active--; |
708 | ||
6010b2da MB |
709 | /* Muting the DAC suppresses artifacts caused during digital |
710 | * shutdown, for example from stopping clocks. | |
711 | */ | |
712 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
713 | snd_soc_dai_digital_mute(codec_dai, 1); | |
714 | ||
f0fba2ad LG |
715 | if (cpu_dai->driver->ops->shutdown) |
716 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 717 | |
f0fba2ad LG |
718 | if (codec_dai->driver->ops->shutdown) |
719 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 720 | |
f0fba2ad LG |
721 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
722 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 723 | |
f0fba2ad LG |
724 | if (platform->driver->ops->close) |
725 | platform->driver->ops->close(substream); | |
726 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
727 | |
728 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
729 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 730 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
731 | schedule_delayed_work(&rtd->delayed_work, |
732 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
733 | } else { |
734 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
735 | snd_soc_dapm_stream_event(rtd, |
736 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 737 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
738 | } |
739 | ||
740 | mutex_unlock(&pcm_mutex); | |
741 | return 0; | |
742 | } | |
743 | ||
744 | /* | |
745 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
746 | * rate, etc. This function is non atomic and can be called multiple times, | |
747 | * it can refer to the runtime info. | |
748 | */ | |
749 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
750 | { | |
751 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
752 | struct snd_soc_platform *platform = rtd->platform; |
753 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
754 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
755 | int ret = 0; |
756 | ||
757 | mutex_lock(&pcm_mutex); | |
cb666e5b | 758 | |
f0fba2ad LG |
759 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
760 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
761 | if (ret < 0) { |
762 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
763 | goto out; | |
764 | } | |
765 | } | |
766 | ||
f0fba2ad LG |
767 | if (platform->driver->ops->prepare) { |
768 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
769 | if (ret < 0) { |
770 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 771 | goto out; |
a71a468a | 772 | } |
db2a4165 FM |
773 | } |
774 | ||
f0fba2ad LG |
775 | if (codec_dai->driver->ops->prepare) { |
776 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
777 | if (ret < 0) { |
778 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 779 | goto out; |
a71a468a | 780 | } |
db2a4165 FM |
781 | } |
782 | ||
f0fba2ad LG |
783 | if (cpu_dai->driver->ops->prepare) { |
784 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
785 | if (ret < 0) { |
786 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
787 | goto out; | |
788 | } | |
789 | } | |
db2a4165 | 790 | |
d45f6219 MB |
791 | /* cancel any delayed stream shutdown that is pending */ |
792 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
793 | codec_dai->pop_wait) { | |
794 | codec_dai->pop_wait = 0; | |
f0fba2ad | 795 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 796 | } |
db2a4165 | 797 | |
452c5eaa | 798 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
799 | snd_soc_dapm_stream_event(rtd, |
800 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
801 | SND_SOC_DAPM_STREAM_START); |
802 | else | |
f0fba2ad LG |
803 | snd_soc_dapm_stream_event(rtd, |
804 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 805 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 806 | |
452c5eaa | 807 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
808 | |
809 | out: | |
810 | mutex_unlock(&pcm_mutex); | |
811 | return ret; | |
812 | } | |
813 | ||
814 | /* | |
815 | * Called by ALSA when the hardware params are set by application. This | |
816 | * function can also be called multiple times and can allocate buffers | |
817 | * (using snd_pcm_lib_* ). It's non-atomic. | |
818 | */ | |
819 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
820 | struct snd_pcm_hw_params *params) | |
821 | { | |
822 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
823 | struct snd_soc_platform *platform = rtd->platform; |
824 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
825 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
826 | int ret = 0; |
827 | ||
828 | mutex_lock(&pcm_mutex); | |
829 | ||
f0fba2ad LG |
830 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
831 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
832 | if (ret < 0) { |
833 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 834 | goto out; |
cb666e5b | 835 | } |
db2a4165 FM |
836 | } |
837 | ||
f0fba2ad LG |
838 | if (codec_dai->driver->ops->hw_params) { |
839 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
840 | if (ret < 0) { |
841 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
842 | codec_dai->name); |
843 | goto codec_err; | |
db2a4165 FM |
844 | } |
845 | } | |
846 | ||
f0fba2ad LG |
847 | if (cpu_dai->driver->ops->hw_params) { |
848 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 849 | if (ret < 0) { |
3ff3f64b | 850 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 851 | cpu_dai->name); |
db2a4165 FM |
852 | goto interface_err; |
853 | } | |
854 | } | |
855 | ||
f0fba2ad LG |
856 | if (platform->driver->ops->hw_params) { |
857 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 858 | if (ret < 0) { |
3ff3f64b | 859 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
860 | platform->name); |
861 | goto platform_err; | |
862 | } | |
863 | } | |
864 | ||
f0fba2ad | 865 | rtd->rate = params_rate(params); |
06f409d7 | 866 | |
db2a4165 FM |
867 | out: |
868 | mutex_unlock(&pcm_mutex); | |
869 | return ret; | |
870 | ||
db2a4165 | 871 | platform_err: |
f0fba2ad LG |
872 | if (cpu_dai->driver->ops->hw_free) |
873 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
874 | |
875 | interface_err: | |
f0fba2ad LG |
876 | if (codec_dai->driver->ops->hw_free) |
877 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
878 | |
879 | codec_err: | |
f0fba2ad LG |
880 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
881 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
882 | |
883 | mutex_unlock(&pcm_mutex); | |
884 | return ret; | |
885 | } | |
886 | ||
887 | /* | |
a00f90f9 | 888 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
889 | */ |
890 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
891 | { | |
892 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
893 | struct snd_soc_platform *platform = rtd->platform; |
894 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
895 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
896 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
897 | |
898 | mutex_lock(&pcm_mutex); | |
899 | ||
900 | /* apply codec digital mute */ | |
8c6529db LG |
901 | if (!codec->active) |
902 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
903 | |
904 | /* free any machine hw params */ | |
f0fba2ad LG |
905 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
906 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
907 | |
908 | /* free any DMA resources */ | |
f0fba2ad LG |
909 | if (platform->driver->ops->hw_free) |
910 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 911 | |
a00f90f9 | 912 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
913 | if (codec_dai->driver->ops->hw_free) |
914 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 915 | |
f0fba2ad LG |
916 | if (cpu_dai->driver->ops->hw_free) |
917 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
918 | |
919 | mutex_unlock(&pcm_mutex); | |
920 | return 0; | |
921 | } | |
922 | ||
923 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
924 | { | |
925 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
926 | struct snd_soc_platform *platform = rtd->platform; |
927 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
928 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
929 | int ret; |
930 | ||
f0fba2ad LG |
931 | if (codec_dai->driver->ops->trigger) { |
932 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
933 | if (ret < 0) |
934 | return ret; | |
935 | } | |
936 | ||
f0fba2ad LG |
937 | if (platform->driver->ops->trigger) { |
938 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
939 | if (ret < 0) |
940 | return ret; | |
941 | } | |
942 | ||
f0fba2ad LG |
943 | if (cpu_dai->driver->ops->trigger) { |
944 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
945 | if (ret < 0) |
946 | return ret; | |
947 | } | |
948 | return 0; | |
949 | } | |
950 | ||
377b6f62 PU |
951 | /* |
952 | * soc level wrapper for pointer callback | |
258020d0 PU |
953 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
954 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
955 | */ |
956 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
957 | { | |
958 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
959 | struct snd_soc_platform *platform = rtd->platform; |
960 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
961 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 962 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 963 | snd_pcm_uframes_t offset = 0; |
258020d0 | 964 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 965 | |
f0fba2ad LG |
966 | if (platform->driver->ops->pointer) |
967 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 968 | |
f0fba2ad LG |
969 | if (cpu_dai->driver->ops->delay) |
970 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 971 | |
f0fba2ad LG |
972 | if (codec_dai->driver->ops->delay) |
973 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 974 | |
f0fba2ad LG |
975 | if (platform->driver->delay) |
976 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
977 | |
978 | runtime->delay = delay; | |
979 | ||
377b6f62 PU |
980 | return offset; |
981 | } | |
982 | ||
db2a4165 FM |
983 | /* ASoC PCM operations */ |
984 | static struct snd_pcm_ops soc_pcm_ops = { | |
985 | .open = soc_pcm_open, | |
986 | .close = soc_codec_close, | |
987 | .hw_params = soc_pcm_hw_params, | |
988 | .hw_free = soc_pcm_hw_free, | |
989 | .prepare = soc_pcm_prepare, | |
990 | .trigger = soc_pcm_trigger, | |
377b6f62 | 991 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
992 | }; |
993 | ||
6f8ab4ac | 994 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 995 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 996 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 997 | { |
6f8ab4ac | 998 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 999 | struct snd_soc_codec *codec; |
db2a4165 FM |
1000 | int i; |
1001 | ||
e3509ff0 DM |
1002 | /* If the initialization of this soc device failed, there is no codec |
1003 | * associated with it. Just bail out in this case. | |
1004 | */ | |
f0fba2ad | 1005 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
1006 | return 0; |
1007 | ||
6ed25978 AG |
1008 | /* Due to the resume being scheduled into a workqueue we could |
1009 | * suspend before that's finished - wait for it to complete. | |
1010 | */ | |
f0fba2ad LG |
1011 | snd_power_lock(card->snd_card); |
1012 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
1013 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
1014 | |
1015 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 1016 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 1017 | |
a00f90f9 | 1018 | /* mute any active DACs */ |
f0fba2ad LG |
1019 | for (i = 0; i < card->num_rtd; i++) { |
1020 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1021 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1022 | |
f0fba2ad | 1023 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1024 | continue; |
1025 | ||
f0fba2ad LG |
1026 | if (drv->ops->digital_mute && dai->playback_active) |
1027 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1028 | } |
1029 | ||
4ccab3e7 | 1030 | /* suspend all pcms */ |
f0fba2ad LG |
1031 | for (i = 0; i < card->num_rtd; i++) { |
1032 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1033 | continue; |
1034 | ||
f0fba2ad | 1035 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1036 | } |
4ccab3e7 | 1037 | |
87506549 | 1038 | if (card->suspend_pre) |
70b2ac12 | 1039 | card->suspend_pre(card); |
db2a4165 | 1040 | |
f0fba2ad LG |
1041 | for (i = 0; i < card->num_rtd; i++) { |
1042 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1043 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1044 | |
f0fba2ad | 1045 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1046 | continue; |
1047 | ||
f0fba2ad LG |
1048 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1049 | cpu_dai->driver->suspend(cpu_dai); | |
1050 | if (platform->driver->suspend && !platform->suspended) { | |
1051 | platform->driver->suspend(cpu_dai); | |
1052 | platform->suspended = 1; | |
1053 | } | |
db2a4165 FM |
1054 | } |
1055 | ||
1056 | /* close any waiting streams and save state */ | |
f0fba2ad | 1057 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1058 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1059 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1060 | } |
db2a4165 | 1061 | |
f0fba2ad LG |
1062 | for (i = 0; i < card->num_rtd; i++) { |
1063 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1064 | |
f0fba2ad | 1065 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1066 | continue; |
1067 | ||
f0fba2ad LG |
1068 | if (driver->playback.stream_name != NULL) |
1069 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1070 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1071 | |
1072 | if (driver->capture.stream_name != NULL) | |
1073 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1074 | SND_SOC_DAPM_STREAM_SUSPEND); |
1075 | } | |
1076 | ||
f0fba2ad | 1077 | /* suspend all CODECs */ |
2eea392d | 1078 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1079 | /* If there are paths active then the CODEC will be held with |
1080 | * bias _ON and should not be suspended. */ | |
1081 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1082 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1083 | case SND_SOC_BIAS_STANDBY: |
1084 | case SND_SOC_BIAS_OFF: | |
1085 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1086 | codec->suspended = 1; | |
1087 | break; | |
1088 | default: | |
1089 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1090 | break; | |
1091 | } | |
1547aba9 MB |
1092 | } |
1093 | } | |
db2a4165 | 1094 | |
f0fba2ad LG |
1095 | for (i = 0; i < card->num_rtd; i++) { |
1096 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1097 | |
f0fba2ad | 1098 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1099 | continue; |
1100 | ||
f0fba2ad LG |
1101 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1102 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1103 | } |
1104 | ||
87506549 | 1105 | if (card->suspend_post) |
70b2ac12 | 1106 | card->suspend_post(card); |
db2a4165 FM |
1107 | |
1108 | return 0; | |
1109 | } | |
6f8ab4ac | 1110 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 1111 | |
6ed25978 AG |
1112 | /* deferred resume work, so resume can complete before we finished |
1113 | * setting our codec back up, which can be very slow on I2C | |
1114 | */ | |
1115 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1116 | { |
f0fba2ad LG |
1117 | struct snd_soc_card *card = |
1118 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 1119 | struct snd_soc_codec *codec; |
db2a4165 FM |
1120 | int i; |
1121 | ||
6ed25978 AG |
1122 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1123 | * so userspace apps are blocked from touching us | |
1124 | */ | |
1125 | ||
f0fba2ad | 1126 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1127 | |
9949788b | 1128 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1129 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1130 | |
87506549 | 1131 | if (card->resume_pre) |
70b2ac12 | 1132 | card->resume_pre(card); |
db2a4165 | 1133 | |
f0fba2ad LG |
1134 | /* resume AC97 DAIs */ |
1135 | for (i = 0; i < card->num_rtd; i++) { | |
1136 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1137 | |
f0fba2ad | 1138 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1139 | continue; |
1140 | ||
f0fba2ad LG |
1141 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1142 | cpu_dai->driver->resume(cpu_dai); | |
1143 | } | |
1144 | ||
2eea392d | 1145 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1146 | /* If the CODEC was idle over suspend then it will have been |
1147 | * left with bias OFF or STANDBY and suspended so we must now | |
1148 | * resume. Otherwise the suspend was suppressed. | |
1149 | */ | |
1150 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1151 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1152 | case SND_SOC_BIAS_STANDBY: |
1153 | case SND_SOC_BIAS_OFF: | |
1154 | codec->driver->resume(codec); | |
1155 | codec->suspended = 0; | |
1156 | break; | |
1157 | default: | |
1158 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1159 | break; | |
1160 | } | |
1547aba9 MB |
1161 | } |
1162 | } | |
db2a4165 | 1163 | |
f0fba2ad LG |
1164 | for (i = 0; i < card->num_rtd; i++) { |
1165 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1166 | |
f0fba2ad | 1167 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1168 | continue; |
1169 | ||
f0fba2ad LG |
1170 | if (driver->playback.stream_name != NULL) |
1171 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1172 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1173 | |
1174 | if (driver->capture.stream_name != NULL) | |
1175 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1176 | SND_SOC_DAPM_STREAM_RESUME); |
1177 | } | |
1178 | ||
3ff3f64b | 1179 | /* unmute any active DACs */ |
f0fba2ad LG |
1180 | for (i = 0; i < card->num_rtd; i++) { |
1181 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1182 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1183 | |
f0fba2ad | 1184 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1185 | continue; |
1186 | ||
f0fba2ad LG |
1187 | if (drv->ops->digital_mute && dai->playback_active) |
1188 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1189 | } |
1190 | ||
f0fba2ad LG |
1191 | for (i = 0; i < card->num_rtd; i++) { |
1192 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1193 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1194 | |
f0fba2ad | 1195 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1196 | continue; |
1197 | ||
f0fba2ad LG |
1198 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1199 | cpu_dai->driver->resume(cpu_dai); | |
1200 | if (platform->driver->resume && platform->suspended) { | |
1201 | platform->driver->resume(cpu_dai); | |
1202 | platform->suspended = 0; | |
1203 | } | |
db2a4165 FM |
1204 | } |
1205 | ||
87506549 | 1206 | if (card->resume_post) |
70b2ac12 | 1207 | card->resume_post(card); |
db2a4165 | 1208 | |
f0fba2ad | 1209 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1210 | |
1211 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1212 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1213 | } |
1214 | ||
1215 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 1216 | int snd_soc_resume(struct device *dev) |
6ed25978 | 1217 | { |
6f8ab4ac | 1218 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1219 | int i; |
b9dd94a8 | 1220 | |
64ab9baa MB |
1221 | /* AC97 devices might have other drivers hanging off them so |
1222 | * need to resume immediately. Other drivers don't have that | |
1223 | * problem and may take a substantial amount of time to resume | |
1224 | * due to I/O costs and anti-pop so handle them out of line. | |
1225 | */ | |
f0fba2ad LG |
1226 | for (i = 0; i < card->num_rtd; i++) { |
1227 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1228 | if (cpu_dai->driver->ac97_control) { | |
1229 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1230 | soc_resume_deferred(&card->deferred_resume_work); | |
1231 | } else { | |
1232 | dev_dbg(dev, "Scheduling resume work\n"); | |
1233 | if (!schedule_work(&card->deferred_resume_work)) | |
1234 | dev_err(dev, "resume work item may be lost\n"); | |
1235 | } | |
64ab9baa | 1236 | } |
6ed25978 | 1237 | |
db2a4165 FM |
1238 | return 0; |
1239 | } | |
6f8ab4ac | 1240 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 1241 | #else |
6f8ab4ac MB |
1242 | #define snd_soc_suspend NULL |
1243 | #define snd_soc_resume NULL | |
db2a4165 FM |
1244 | #endif |
1245 | ||
02a06d30 BS |
1246 | static struct snd_soc_dai_ops null_dai_ops = { |
1247 | }; | |
1248 | ||
f0fba2ad | 1249 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1250 | { |
f0fba2ad LG |
1251 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1252 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1253 | struct snd_soc_codec *codec; |
435c5e25 | 1254 | struct snd_soc_platform *platform; |
f0fba2ad | 1255 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1256 | |
f0fba2ad LG |
1257 | if (rtd->complete) |
1258 | return 1; | |
1259 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1260 | |
f0fba2ad LG |
1261 | /* do we already have the CPU DAI for this link ? */ |
1262 | if (rtd->cpu_dai) { | |
1263 | goto find_codec; | |
1264 | } | |
1265 | /* no, then find CPU DAI from registered DAIs*/ | |
1266 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1267 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1268 | ||
1269 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1270 | return -ENODEV; | |
1271 | ||
1272 | rtd->cpu_dai = cpu_dai; | |
1273 | goto find_codec; | |
435c5e25 | 1274 | } |
435c5e25 | 1275 | } |
f0fba2ad LG |
1276 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1277 | dai_link->cpu_dai_name); | |
6308419a | 1278 | |
f0fba2ad LG |
1279 | find_codec: |
1280 | /* do we already have the CODEC for this link ? */ | |
1281 | if (rtd->codec) { | |
1282 | goto find_platform; | |
1283 | } | |
1284 | ||
1285 | /* no, then find CODEC from registered CODECs*/ | |
1286 | list_for_each_entry(codec, &codec_list, list) { | |
1287 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1288 | rtd->codec = codec; | |
1289 | ||
f0fba2ad LG |
1290 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1291 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1292 | if (codec->dev == codec_dai->dev && | |
1293 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1294 | rtd->codec_dai = codec_dai; | |
1295 | goto find_platform; | |
1296 | } | |
435c5e25 | 1297 | } |
f0fba2ad LG |
1298 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1299 | dai_link->codec_dai_name); | |
1300 | ||
1301 | goto find_platform; | |
435c5e25 | 1302 | } |
f0fba2ad LG |
1303 | } |
1304 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1305 | dai_link->codec_name); | |
6b05eda6 | 1306 | |
f0fba2ad LG |
1307 | find_platform: |
1308 | /* do we already have the CODEC DAI for this link ? */ | |
1309 | if (rtd->platform) { | |
1310 | goto out; | |
c5af3a2e | 1311 | } |
f0fba2ad LG |
1312 | /* no, then find CPU DAI from registered DAIs*/ |
1313 | list_for_each_entry(platform, &platform_list, list) { | |
1314 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
f0fba2ad LG |
1315 | rtd->platform = platform; |
1316 | goto out; | |
1317 | } | |
02a06d30 BS |
1318 | } |
1319 | ||
f0fba2ad LG |
1320 | dev_dbg(card->dev, "platform %s not registered\n", |
1321 | dai_link->platform_name); | |
1322 | return 0; | |
1323 | ||
1324 | out: | |
1325 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1326 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1327 | rtd->complete = 1; | |
1328 | card->num_rtd++; | |
1329 | } | |
1330 | return 1; | |
1331 | } | |
1332 | ||
589c3563 JN |
1333 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1334 | { | |
1335 | int err; | |
1336 | ||
1337 | if (codec->driver->remove) { | |
1338 | err = codec->driver->remove(codec); | |
1339 | if (err < 0) | |
1340 | dev_err(codec->dev, | |
1341 | "asoc: failed to remove %s: %d\n", | |
1342 | codec->name, err); | |
1343 | } | |
1344 | ||
1345 | /* Make sure all DAPM widgets are freed */ | |
1346 | snd_soc_dapm_free(&codec->dapm); | |
1347 | ||
1348 | soc_cleanup_codec_debugfs(codec); | |
1349 | codec->probed = 0; | |
1350 | list_del(&codec->card_list); | |
1351 | module_put(codec->dev->driver->owner); | |
1352 | } | |
1353 | ||
f0fba2ad LG |
1354 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1355 | { | |
1356 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1357 | struct snd_soc_codec *codec = rtd->codec; | |
1358 | struct snd_soc_platform *platform = rtd->platform; | |
1359 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1360 | int err; | |
1361 | ||
1362 | /* unregister the rtd device */ | |
1363 | if (rtd->dev_registered) { | |
1364 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1365 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1366 | device_unregister(&rtd->dev); |
1367 | rtd->dev_registered = 0; | |
1368 | } | |
1369 | ||
1370 | /* remove the CODEC DAI */ | |
1371 | if (codec_dai && codec_dai->probed) { | |
1372 | if (codec_dai->driver->remove) { | |
1373 | err = codec_dai->driver->remove(codec_dai); | |
1374 | if (err < 0) | |
1375 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1376 | } |
f0fba2ad LG |
1377 | codec_dai->probed = 0; |
1378 | list_del(&codec_dai->card_list); | |
1379 | } | |
6b05eda6 | 1380 | |
f0fba2ad LG |
1381 | /* remove the platform */ |
1382 | if (platform && platform->probed) { | |
1383 | if (platform->driver->remove) { | |
1384 | err = platform->driver->remove(platform); | |
1385 | if (err < 0) | |
1386 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1387 | } | |
1388 | platform->probed = 0; | |
1389 | list_del(&platform->card_list); | |
1390 | module_put(platform->dev->driver->owner); | |
1391 | } | |
435c5e25 | 1392 | |
f0fba2ad | 1393 | /* remove the CODEC */ |
589c3563 JN |
1394 | if (codec && codec->probed) |
1395 | soc_remove_codec(codec); | |
db2a4165 | 1396 | |
f0fba2ad LG |
1397 | /* remove the cpu_dai */ |
1398 | if (cpu_dai && cpu_dai->probed) { | |
1399 | if (cpu_dai->driver->remove) { | |
1400 | err = cpu_dai->driver->remove(cpu_dai); | |
1401 | if (err < 0) | |
1402 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1403 | } |
f0fba2ad LG |
1404 | cpu_dai->probed = 0; |
1405 | list_del(&cpu_dai->card_list); | |
1406 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1407 | } |
f0fba2ad | 1408 | } |
db2a4165 | 1409 | |
ead9b919 JN |
1410 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1411 | struct snd_soc_codec *codec) | |
1412 | { | |
1413 | int i; | |
1414 | ||
ff819b83 | 1415 | if (card->codec_conf == NULL) |
ead9b919 JN |
1416 | return; |
1417 | ||
ff819b83 DP |
1418 | for (i = 0; i < card->num_configs; i++) { |
1419 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1420 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1421 | codec->name_prefix = map->name_prefix; | |
1422 | break; | |
1423 | } | |
1424 | } | |
1425 | } | |
1426 | ||
589c3563 JN |
1427 | static int soc_probe_codec(struct snd_soc_card *card, |
1428 | struct snd_soc_codec *codec) | |
1429 | { | |
1430 | int ret = 0; | |
1431 | ||
1432 | codec->card = card; | |
1433 | codec->dapm.card = card; | |
1434 | soc_set_name_prefix(card, codec); | |
1435 | ||
70d29331 JN |
1436 | if (!try_module_get(codec->dev->driver->owner)) |
1437 | return -ENODEV; | |
1438 | ||
589c3563 JN |
1439 | if (codec->driver->probe) { |
1440 | ret = codec->driver->probe(codec); | |
1441 | if (ret < 0) { | |
1442 | dev_err(codec->dev, | |
1443 | "asoc: failed to probe CODEC %s: %d\n", | |
1444 | codec->name, ret); | |
70d29331 | 1445 | goto err_probe; |
589c3563 JN |
1446 | } |
1447 | } | |
1448 | ||
1449 | soc_init_codec_debugfs(codec); | |
1450 | ||
1451 | /* mark codec as probed and add to card codec list */ | |
1452 | codec->probed = 1; | |
1453 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1454 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1455 | |
70d29331 JN |
1456 | return 0; |
1457 | ||
1458 | err_probe: | |
1459 | module_put(codec->dev->driver->owner); | |
1460 | ||
589c3563 JN |
1461 | return ret; |
1462 | } | |
1463 | ||
f0fba2ad LG |
1464 | static void rtd_release(struct device *dev) {} |
1465 | ||
589c3563 JN |
1466 | static int soc_post_component_init(struct snd_soc_card *card, |
1467 | struct snd_soc_codec *codec, | |
1468 | int num, int dailess) | |
1469 | { | |
1470 | struct snd_soc_dai_link *dai_link = NULL; | |
1471 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1472 | struct snd_soc_pcm_runtime *rtd; | |
1473 | const char *temp, *name; | |
1474 | int ret = 0; | |
1475 | ||
1476 | if (!dailess) { | |
1477 | dai_link = &card->dai_link[num]; | |
1478 | rtd = &card->rtd[num]; | |
1479 | name = dai_link->name; | |
1480 | } else { | |
1481 | aux_dev = &card->aux_dev[num]; | |
1482 | rtd = &card->rtd_aux[num]; | |
1483 | name = aux_dev->name; | |
1484 | } | |
1485 | ||
1486 | /* machine controls, routes and widgets are not prefixed */ | |
1487 | temp = codec->name_prefix; | |
1488 | codec->name_prefix = NULL; | |
1489 | ||
1490 | /* do machine specific initialization */ | |
1491 | if (!dailess && dai_link->init) | |
1492 | ret = dai_link->init(rtd); | |
1493 | else if (dailess && aux_dev->init) | |
1494 | ret = aux_dev->init(&codec->dapm); | |
1495 | if (ret < 0) { | |
1496 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1497 | return ret; | |
1498 | } | |
1499 | codec->name_prefix = temp; | |
1500 | ||
1501 | /* Make sure all DAPM widgets are instantiated */ | |
1502 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1503 | |
1504 | /* register the rtd device */ | |
1505 | rtd->codec = codec; | |
1506 | rtd->card = card; | |
1507 | rtd->dev.parent = card->dev; | |
1508 | rtd->dev.release = rtd_release; | |
1509 | rtd->dev.init_name = name; | |
1510 | ret = device_register(&rtd->dev); | |
1511 | if (ret < 0) { | |
1512 | dev_err(card->dev, | |
1513 | "asoc: failed to register runtime device: %d\n", ret); | |
1514 | return ret; | |
1515 | } | |
1516 | rtd->dev_registered = 1; | |
1517 | ||
1518 | /* add DAPM sysfs entries for this codec */ | |
1519 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1520 | if (ret < 0) | |
1521 | dev_err(codec->dev, | |
1522 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1523 | ret); | |
1524 | ||
1525 | /* add codec sysfs entries */ | |
1526 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1527 | if (ret < 0) | |
1528 | dev_err(codec->dev, | |
1529 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1530 | ||
1531 | return 0; | |
1532 | } | |
1533 | ||
f0fba2ad LG |
1534 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1535 | { | |
1536 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1537 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1538 | struct snd_soc_codec *codec = rtd->codec; | |
1539 | struct snd_soc_platform *platform = rtd->platform; | |
1540 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1541 | int ret; | |
1542 | ||
1543 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1544 | ||
1545 | /* config components */ | |
1546 | codec_dai->codec = codec; | |
f0fba2ad | 1547 | cpu_dai->platform = platform; |
f0fba2ad LG |
1548 | codec_dai->card = card; |
1549 | cpu_dai->card = card; | |
1550 | ||
1551 | /* set default power off timeout */ | |
1552 | rtd->pmdown_time = pmdown_time; | |
1553 | ||
1554 | /* probe the cpu_dai */ | |
1555 | if (!cpu_dai->probed) { | |
1556 | if (cpu_dai->driver->probe) { | |
1557 | ret = cpu_dai->driver->probe(cpu_dai); | |
1558 | if (ret < 0) { | |
1559 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1560 | cpu_dai->name); | |
1561 | return ret; | |
1562 | } | |
1563 | } | |
1564 | cpu_dai->probed = 1; | |
1565 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1566 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1567 | } |
1568 | ||
f0fba2ad LG |
1569 | /* probe the CODEC */ |
1570 | if (!codec->probed) { | |
589c3563 JN |
1571 | ret = soc_probe_codec(card, codec); |
1572 | if (ret < 0) | |
1573 | return ret; | |
db2a4165 FM |
1574 | } |
1575 | ||
f0fba2ad LG |
1576 | /* probe the platform */ |
1577 | if (!platform->probed) { | |
70d29331 JN |
1578 | if (!try_module_get(platform->dev->driver->owner)) |
1579 | return -ENODEV; | |
1580 | ||
f0fba2ad LG |
1581 | if (platform->driver->probe) { |
1582 | ret = platform->driver->probe(platform); | |
1583 | if (ret < 0) { | |
1584 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1585 | platform->name); | |
70d29331 | 1586 | module_put(platform->dev->driver->owner); |
f0fba2ad LG |
1587 | return ret; |
1588 | } | |
1589 | } | |
1590 | /* mark platform as probed and add to card platform list */ | |
1591 | platform->probed = 1; | |
1592 | list_add(&platform->card_list, &card->platform_dev_list); | |
1593 | } | |
6ed25978 | 1594 | |
f0fba2ad LG |
1595 | /* probe the CODEC DAI */ |
1596 | if (!codec_dai->probed) { | |
1597 | if (codec_dai->driver->probe) { | |
1598 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1599 | if (ret < 0) { |
f0fba2ad LG |
1600 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1601 | codec_dai->name); | |
1602 | return ret; | |
fe3e78e0 MB |
1603 | } |
1604 | } | |
f0fba2ad LG |
1605 | |
1606 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1607 | codec_dai->probed = 1; | |
1608 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1609 | } |
1610 | ||
f0fba2ad LG |
1611 | /* DAPM dai link stream work */ |
1612 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1613 | ||
589c3563 JN |
1614 | ret = soc_post_component_init(card, codec, num, 0); |
1615 | if (ret) | |
f0fba2ad | 1616 | return ret; |
fe3e78e0 | 1617 | |
f0fba2ad LG |
1618 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1619 | if (ret < 0) | |
1620 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1621 | ||
f0fba2ad LG |
1622 | /* create the pcm */ |
1623 | ret = soc_new_pcm(rtd, num); | |
1624 | if (ret < 0) { | |
1625 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1626 | return ret; | |
1627 | } | |
1628 | ||
1629 | /* add platform data for AC97 devices */ | |
1630 | if (rtd->codec_dai->driver->ac97_control) | |
1631 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1632 | ||
1633 | return 0; | |
1634 | } | |
1635 | ||
fe3e78e0 | 1636 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1637 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1638 | { | |
1639 | int ret; | |
1640 | ||
fe3e78e0 MB |
1641 | /* Only instantiate AC97 if not already done by the adaptor |
1642 | * for the generic AC97 subsystem. | |
1643 | */ | |
f0fba2ad | 1644 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1645 | /* |
1646 | * It is possible that the AC97 device is already registered to | |
1647 | * the device subsystem. This happens when the device is created | |
1648 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1649 | * is the generic AC97 glue but others migh emerge. | |
1650 | * | |
1651 | * In those cases we don't try to register the device again. | |
1652 | */ | |
1653 | if (!rtd->codec->ac97_created) | |
1654 | return 0; | |
f0fba2ad LG |
1655 | |
1656 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1657 | if (ret < 0) { |
1658 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1659 | return ret; |
fe3e78e0 | 1660 | } |
f0fba2ad LG |
1661 | |
1662 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1663 | } |
f0fba2ad LG |
1664 | return 0; |
1665 | } | |
1666 | ||
1667 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1668 | { | |
1669 | if (codec->ac97_registered) { | |
1670 | soc_ac97_dev_unregister(codec); | |
1671 | codec->ac97_registered = 0; | |
1672 | } | |
1673 | } | |
fe3e78e0 MB |
1674 | #endif |
1675 | ||
2eea392d JN |
1676 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1677 | { | |
1678 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1679 | struct snd_soc_codec *codec; |
676ad98a | 1680 | int ret = -ENODEV; |
2eea392d JN |
1681 | |
1682 | /* find CODEC from registered CODECs*/ | |
1683 | list_for_each_entry(codec, &codec_list, list) { | |
1684 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1685 | if (codec->probed) { | |
1686 | dev_err(codec->dev, | |
1687 | "asoc: codec already probed"); | |
1688 | ret = -EBUSY; | |
1689 | goto out; | |
1690 | } | |
676ad98a | 1691 | goto found; |
2eea392d JN |
1692 | } |
1693 | } | |
676ad98a JN |
1694 | /* codec not found */ |
1695 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1696 | goto out; | |
2eea392d | 1697 | |
676ad98a | 1698 | found: |
589c3563 | 1699 | ret = soc_probe_codec(card, codec); |
2eea392d | 1700 | if (ret < 0) |
589c3563 | 1701 | return ret; |
2eea392d | 1702 | |
589c3563 | 1703 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1704 | |
1705 | out: | |
1706 | return ret; | |
1707 | } | |
1708 | ||
1709 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1710 | { | |
1711 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1712 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1713 | |
1714 | /* unregister the rtd device */ | |
1715 | if (rtd->dev_registered) { | |
589c3563 | 1716 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1717 | device_unregister(&rtd->dev); |
1718 | rtd->dev_registered = 0; | |
1719 | } | |
1720 | ||
589c3563 JN |
1721 | if (codec && codec->probed) |
1722 | soc_remove_codec(codec); | |
2eea392d JN |
1723 | } |
1724 | ||
fdf0f54d DP |
1725 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1726 | enum snd_soc_compress_type compress_type) | |
1727 | { | |
1728 | int ret; | |
1729 | ||
1730 | if (codec->cache_init) | |
1731 | return 0; | |
1732 | ||
1733 | /* override the compress_type if necessary */ | |
1734 | if (compress_type && codec->compress_type != compress_type) | |
1735 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1736 | ret = snd_soc_cache_init(codec); |
1737 | if (ret < 0) { | |
1738 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1739 | ret); | |
1740 | return ret; | |
1741 | } | |
1742 | codec->cache_init = 1; | |
1743 | return 0; | |
1744 | } | |
1745 | ||
f0fba2ad LG |
1746 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1747 | { | |
fdf0f54d DP |
1748 | struct snd_soc_codec *codec; |
1749 | struct snd_soc_codec_conf *codec_conf; | |
1750 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1751 | int ret, i; |
fe3e78e0 | 1752 | |
f0fba2ad | 1753 | mutex_lock(&card->mutex); |
dbe21408 | 1754 | |
f0fba2ad LG |
1755 | if (card->instantiated) { |
1756 | mutex_unlock(&card->mutex); | |
1757 | return; | |
1758 | } | |
fe3e78e0 | 1759 | |
f0fba2ad LG |
1760 | /* bind DAIs */ |
1761 | for (i = 0; i < card->num_links; i++) | |
1762 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1763 | |
f0fba2ad LG |
1764 | /* bind completed ? */ |
1765 | if (card->num_rtd != card->num_links) { | |
1766 | mutex_unlock(&card->mutex); | |
1767 | return; | |
1768 | } | |
435c5e25 | 1769 | |
fdf0f54d DP |
1770 | /* initialize the register cache for each available codec */ |
1771 | list_for_each_entry(codec, &codec_list, list) { | |
1772 | if (codec->cache_init) | |
1773 | continue; | |
861f2faf DP |
1774 | /* by default we don't override the compress_type */ |
1775 | compress_type = 0; | |
fdf0f54d DP |
1776 | /* check to see if we need to override the compress_type */ |
1777 | for (i = 0; i < card->num_configs; ++i) { | |
1778 | codec_conf = &card->codec_conf[i]; | |
1779 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1780 | compress_type = codec_conf->compress_type; | |
1781 | if (compress_type && compress_type | |
1782 | != codec->compress_type) | |
1783 | break; | |
1784 | } | |
1785 | } | |
fdf0f54d DP |
1786 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1787 | if (ret < 0) { | |
1788 | mutex_unlock(&card->mutex); | |
1789 | return; | |
1790 | } | |
1791 | } | |
1792 | ||
f0fba2ad LG |
1793 | /* card bind complete so register a sound card */ |
1794 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1795 | card->owner, 0, &card->snd_card); | |
1796 | if (ret < 0) { | |
1797 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1798 | card->name); | |
1799 | mutex_unlock(&card->mutex); | |
1800 | return; | |
1801 | } | |
1802 | card->snd_card->dev = card->dev; | |
1803 | ||
88ee1c61 | 1804 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1805 | /* deferred resume work */ |
1806 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1807 | #endif | |
db2a4165 | 1808 | |
f0fba2ad LG |
1809 | /* initialise the sound card only once */ |
1810 | if (card->probe) { | |
e7361ec4 | 1811 | ret = card->probe(card); |
f0fba2ad LG |
1812 | if (ret < 0) |
1813 | goto card_probe_error; | |
1814 | } | |
fe3e78e0 | 1815 | |
f0fba2ad LG |
1816 | for (i = 0; i < card->num_links; i++) { |
1817 | ret = soc_probe_dai_link(card, i); | |
1818 | if (ret < 0) { | |
321de0d0 MB |
1819 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1820 | card->name, ret); | |
f0fba2ad LG |
1821 | goto probe_dai_err; |
1822 | } | |
1823 | } | |
db2a4165 | 1824 | |
2eea392d JN |
1825 | for (i = 0; i < card->num_aux_devs; i++) { |
1826 | ret = soc_probe_aux_dev(card, i); | |
1827 | if (ret < 0) { | |
1828 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1829 | card->name, ret); | |
1830 | goto probe_aux_dev_err; | |
1831 | } | |
1832 | } | |
1833 | ||
f0fba2ad LG |
1834 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1835 | "%s", card->name); | |
1836 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1837 | "%s", card->name); | |
1838 | ||
1839 | ret = snd_card_register(card->snd_card); | |
1840 | if (ret < 0) { | |
1841 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1842 | goto probe_aux_dev_err; |
db2a4165 FM |
1843 | } |
1844 | ||
f0fba2ad LG |
1845 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1846 | /* register any AC97 codecs */ | |
1847 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1848 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1849 | if (ret < 0) { | |
1850 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1851 | while (--i >= 0) | |
7d8316df | 1852 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1853 | goto probe_aux_dev_err; |
f0fba2ad | 1854 | } |
6b3ed785 | 1855 | } |
f0fba2ad LG |
1856 | #endif |
1857 | ||
1858 | card->instantiated = 1; | |
1859 | mutex_unlock(&card->mutex); | |
1860 | return; | |
1861 | ||
2eea392d JN |
1862 | probe_aux_dev_err: |
1863 | for (i = 0; i < card->num_aux_devs; i++) | |
1864 | soc_remove_aux_dev(card, i); | |
1865 | ||
f0fba2ad LG |
1866 | probe_dai_err: |
1867 | for (i = 0; i < card->num_links; i++) | |
1868 | soc_remove_dai_link(card, i); | |
1869 | ||
1870 | card_probe_error: | |
87506549 | 1871 | if (card->remove) |
e7361ec4 | 1872 | card->remove(card); |
f0fba2ad LG |
1873 | |
1874 | snd_card_free(card->snd_card); | |
1875 | ||
1876 | mutex_unlock(&card->mutex); | |
435c5e25 | 1877 | } |
db2a4165 | 1878 | |
435c5e25 | 1879 | /* |
421f91d2 | 1880 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1881 | * client_mutex. |
1882 | */ | |
1883 | static void snd_soc_instantiate_cards(void) | |
1884 | { | |
1885 | struct snd_soc_card *card; | |
1886 | list_for_each_entry(card, &card_list, list) | |
1887 | snd_soc_instantiate_card(card); | |
1888 | } | |
1889 | ||
1890 | /* probes a new socdev */ | |
1891 | static int soc_probe(struct platform_device *pdev) | |
1892 | { | |
f0fba2ad | 1893 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1894 | int ret = 0; |
435c5e25 | 1895 | |
70a7ca34 VK |
1896 | /* |
1897 | * no card, so machine driver should be registering card | |
1898 | * we should not be here in that case so ret error | |
1899 | */ | |
1900 | if (!card) | |
1901 | return -EINVAL; | |
1902 | ||
435c5e25 MB |
1903 | /* Bodge while we unpick instantiation */ |
1904 | card->dev = &pdev->dev; | |
f0fba2ad | 1905 | |
435c5e25 MB |
1906 | ret = snd_soc_register_card(card); |
1907 | if (ret != 0) { | |
1908 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1909 | return ret; | |
1910 | } | |
1911 | ||
1912 | return 0; | |
db2a4165 FM |
1913 | } |
1914 | ||
b0e26485 | 1915 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1916 | { |
1917 | int i; | |
db2a4165 | 1918 | |
b0e26485 VK |
1919 | /* make sure any delayed work runs */ |
1920 | for (i = 0; i < card->num_rtd; i++) { | |
1921 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1922 | flush_delayed_work_sync(&rtd->delayed_work); | |
1923 | } | |
914dc182 | 1924 | |
b0e26485 VK |
1925 | /* remove auxiliary devices */ |
1926 | for (i = 0; i < card->num_aux_devs; i++) | |
1927 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1928 | |
b0e26485 VK |
1929 | /* remove and free each DAI */ |
1930 | for (i = 0; i < card->num_rtd; i++) | |
1931 | soc_remove_dai_link(card, i); | |
2eea392d | 1932 | |
b0e26485 | 1933 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1934 | |
b0e26485 VK |
1935 | /* remove the card */ |
1936 | if (card->remove) | |
e7361ec4 | 1937 | card->remove(card); |
a6052154 | 1938 | |
b0e26485 VK |
1939 | kfree(card->rtd); |
1940 | snd_card_free(card->snd_card); | |
1941 | return 0; | |
1942 | ||
1943 | } | |
1944 | ||
1945 | /* removes a socdev */ | |
1946 | static int soc_remove(struct platform_device *pdev) | |
1947 | { | |
1948 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1949 | |
c5af3a2e | 1950 | snd_soc_unregister_card(card); |
db2a4165 FM |
1951 | return 0; |
1952 | } | |
1953 | ||
6f8ab4ac | 1954 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1955 | { |
6f8ab4ac | 1956 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1957 | int i; |
51737470 MB |
1958 | |
1959 | if (!card->instantiated) | |
416356fc | 1960 | return 0; |
51737470 MB |
1961 | |
1962 | /* Flush out pmdown_time work - we actually do want to run it | |
1963 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1964 | for (i = 0; i < card->num_rtd; i++) { |
1965 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1966 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1967 | } |
51737470 | 1968 | |
f0fba2ad | 1969 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1970 | |
1971 | return 0; | |
51737470 | 1972 | } |
6f8ab4ac | 1973 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1974 | |
6f8ab4ac MB |
1975 | const struct dev_pm_ops snd_soc_pm_ops = { |
1976 | .suspend = snd_soc_suspend, | |
1977 | .resume = snd_soc_resume, | |
1978 | .poweroff = snd_soc_poweroff, | |
416356fc MB |
1979 | }; |
1980 | ||
db2a4165 FM |
1981 | /* ASoC platform driver */ |
1982 | static struct platform_driver soc_driver = { | |
1983 | .driver = { | |
1984 | .name = "soc-audio", | |
8b45a209 | 1985 | .owner = THIS_MODULE, |
6f8ab4ac | 1986 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1987 | }, |
1988 | .probe = soc_probe, | |
1989 | .remove = soc_remove, | |
db2a4165 FM |
1990 | }; |
1991 | ||
1992 | /* create a new pcm */ | |
f0fba2ad LG |
1993 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1994 | { | |
1995 | struct snd_soc_codec *codec = rtd->codec; | |
1996 | struct snd_soc_platform *platform = rtd->platform; | |
1997 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1998 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1999 | struct snd_pcm *pcm; |
2000 | char new_name[64]; | |
2001 | int ret = 0, playback = 0, capture = 0; | |
2002 | ||
db2a4165 | 2003 | /* check client and interface hw capabilities */ |
40ca1142 | 2004 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 2005 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 2006 | |
f0fba2ad | 2007 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 2008 | playback = 1; |
f0fba2ad | 2009 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
2010 | capture = 1; |
2011 | ||
f0fba2ad LG |
2012 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
2013 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
2014 | num, playback, capture, &pcm); | |
db2a4165 | 2015 | if (ret < 0) { |
f0fba2ad | 2016 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
2017 | return ret; |
2018 | } | |
2019 | ||
f0fba2ad | 2020 | rtd->pcm = pcm; |
db2a4165 | 2021 | pcm->private_data = rtd; |
f0fba2ad LG |
2022 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
2023 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2024 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2025 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2026 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2027 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2028 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
2029 | |
2030 | if (playback) | |
2031 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2032 | ||
2033 | if (capture) | |
2034 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2035 | ||
f0fba2ad | 2036 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
2037 | if (ret < 0) { |
2038 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
2039 | return ret; |
2040 | } | |
2041 | ||
f0fba2ad | 2042 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2043 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2044 | cpu_dai->name); | |
2045 | return ret; | |
2046 | } | |
2047 | ||
096e49d5 MB |
2048 | /** |
2049 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2050 | * | |
2051 | * @codec: CODEC to query. | |
2052 | * @reg: Register to query. | |
2053 | * | |
2054 | * Boolean function indiciating if a CODEC register is volatile. | |
2055 | */ | |
181e055e MB |
2056 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
2057 | unsigned int reg) | |
096e49d5 | 2058 | { |
1500b7b5 DP |
2059 | if (codec->volatile_register) |
2060 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
2061 | else |
2062 | return 0; | |
2063 | } | |
2064 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2065 | ||
db2a4165 FM |
2066 | /** |
2067 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2068 | * @codec: audio codec | |
2069 | * @ops: AC97 bus operations | |
2070 | * @num: AC97 codec number | |
2071 | * | |
2072 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2073 | */ | |
2074 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2075 | struct snd_ac97_bus_ops *ops, int num) | |
2076 | { | |
2077 | mutex_lock(&codec->mutex); | |
2078 | ||
2079 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2080 | if (codec->ac97 == NULL) { | |
2081 | mutex_unlock(&codec->mutex); | |
2082 | return -ENOMEM; | |
2083 | } | |
2084 | ||
2085 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2086 | if (codec->ac97->bus == NULL) { | |
2087 | kfree(codec->ac97); | |
2088 | codec->ac97 = NULL; | |
2089 | mutex_unlock(&codec->mutex); | |
2090 | return -ENOMEM; | |
2091 | } | |
2092 | ||
2093 | codec->ac97->bus->ops = ops; | |
2094 | codec->ac97->num = num; | |
0562f788 MW |
2095 | |
2096 | /* | |
2097 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2098 | * device will be registered with the device subsystem later on. | |
2099 | */ | |
2100 | codec->ac97_created = 1; | |
2101 | ||
db2a4165 FM |
2102 | mutex_unlock(&codec->mutex); |
2103 | return 0; | |
2104 | } | |
2105 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2106 | ||
2107 | /** | |
2108 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2109 | * @codec: audio codec | |
2110 | * | |
2111 | * Frees AC97 codec device resources. | |
2112 | */ | |
2113 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2114 | { | |
2115 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2116 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2117 | soc_unregister_ac97_dai_link(codec); | |
2118 | #endif | |
db2a4165 FM |
2119 | kfree(codec->ac97->bus); |
2120 | kfree(codec->ac97); | |
2121 | codec->ac97 = NULL; | |
0562f788 | 2122 | codec->ac97_created = 0; |
db2a4165 FM |
2123 | mutex_unlock(&codec->mutex); |
2124 | } | |
2125 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2126 | ||
c3753707 MB |
2127 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2128 | { | |
2129 | unsigned int ret; | |
2130 | ||
c3acec26 | 2131 | ret = codec->read(codec, reg); |
c3753707 | 2132 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2133 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2134 | |
2135 | return ret; | |
2136 | } | |
2137 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2138 | ||
2139 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2140 | unsigned int reg, unsigned int val) | |
2141 | { | |
2142 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2143 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2144 | return codec->write(codec, reg, val); |
c3753707 MB |
2145 | } |
2146 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2147 | ||
db2a4165 FM |
2148 | /** |
2149 | * snd_soc_update_bits - update codec register bits | |
2150 | * @codec: audio codec | |
2151 | * @reg: codec register | |
2152 | * @mask: register mask | |
2153 | * @value: new value | |
2154 | * | |
2155 | * Writes new register value. | |
2156 | * | |
180c329d | 2157 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2158 | */ |
2159 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2160 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2161 | { |
2162 | int change; | |
46f5822f | 2163 | unsigned int old, new; |
180c329d TT |
2164 | int ret; |
2165 | ||
2166 | ret = snd_soc_read(codec, reg); | |
2167 | if (ret < 0) | |
2168 | return ret; | |
db2a4165 | 2169 | |
180c329d | 2170 | old = ret; |
db2a4165 FM |
2171 | new = (old & ~mask) | value; |
2172 | change = old != new; | |
180c329d TT |
2173 | if (change) { |
2174 | ret = snd_soc_write(codec, reg, new); | |
2175 | if (ret < 0) | |
2176 | return ret; | |
2177 | } | |
db2a4165 | 2178 | |
db2a4165 FM |
2179 | return change; |
2180 | } | |
2181 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2182 | ||
6c508c62 EN |
2183 | /** |
2184 | * snd_soc_update_bits_locked - update codec register bits | |
2185 | * @codec: audio codec | |
2186 | * @reg: codec register | |
2187 | * @mask: register mask | |
2188 | * @value: new value | |
2189 | * | |
2190 | * Writes new register value, and takes the codec mutex. | |
2191 | * | |
2192 | * Returns 1 for change else 0. | |
2193 | */ | |
dd1b3d53 MB |
2194 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2195 | unsigned short reg, unsigned int mask, | |
2196 | unsigned int value) | |
6c508c62 EN |
2197 | { |
2198 | int change; | |
2199 | ||
2200 | mutex_lock(&codec->mutex); | |
2201 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2202 | mutex_unlock(&codec->mutex); | |
2203 | ||
2204 | return change; | |
2205 | } | |
dd1b3d53 | 2206 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2207 | |
db2a4165 FM |
2208 | /** |
2209 | * snd_soc_test_bits - test register for change | |
2210 | * @codec: audio codec | |
2211 | * @reg: codec register | |
2212 | * @mask: register mask | |
2213 | * @value: new value | |
2214 | * | |
2215 | * Tests a register with a new value and checks if the new value is | |
2216 | * different from the old value. | |
2217 | * | |
2218 | * Returns 1 for change else 0. | |
2219 | */ | |
2220 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2221 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2222 | { |
2223 | int change; | |
46f5822f | 2224 | unsigned int old, new; |
db2a4165 | 2225 | |
db2a4165 FM |
2226 | old = snd_soc_read(codec, reg); |
2227 | new = (old & ~mask) | value; | |
2228 | change = old != new; | |
db2a4165 FM |
2229 | |
2230 | return change; | |
2231 | } | |
2232 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2233 | ||
db2a4165 FM |
2234 | /** |
2235 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2236 | * @substream: the pcm substream | |
2237 | * @hw: the hardware parameters | |
2238 | * | |
2239 | * Sets the substream runtime hardware parameters. | |
2240 | */ | |
2241 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2242 | const struct snd_pcm_hardware *hw) | |
2243 | { | |
2244 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2245 | runtime->hw.info = hw->info; | |
2246 | runtime->hw.formats = hw->formats; | |
2247 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2248 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2249 | runtime->hw.periods_min = hw->periods_min; | |
2250 | runtime->hw.periods_max = hw->periods_max; | |
2251 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2252 | runtime->hw.fifo_size = hw->fifo_size; | |
2253 | return 0; | |
2254 | } | |
2255 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2256 | ||
2257 | /** | |
2258 | * snd_soc_cnew - create new control | |
2259 | * @_template: control template | |
2260 | * @data: control private data | |
ac11a2b3 | 2261 | * @long_name: control long name |
db2a4165 FM |
2262 | * |
2263 | * Create a new mixer control from a template control. | |
2264 | * | |
2265 | * Returns 0 for success, else error. | |
2266 | */ | |
2267 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2268 | void *data, char *long_name) | |
2269 | { | |
2270 | struct snd_kcontrol_new template; | |
2271 | ||
2272 | memcpy(&template, _template, sizeof(template)); | |
2273 | if (long_name) | |
2274 | template.name = long_name; | |
db2a4165 FM |
2275 | template.index = 0; |
2276 | ||
2277 | return snd_ctl_new1(&template, data); | |
2278 | } | |
2279 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2280 | ||
3e8e1952 IM |
2281 | /** |
2282 | * snd_soc_add_controls - add an array of controls to a codec. | |
2283 | * Convienience function to add a list of controls. Many codecs were | |
2284 | * duplicating this code. | |
2285 | * | |
2286 | * @codec: codec to add controls to | |
2287 | * @controls: array of controls to add | |
2288 | * @num_controls: number of elements in the array | |
2289 | * | |
2290 | * Return 0 for success, else error. | |
2291 | */ | |
2292 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2293 | const struct snd_kcontrol_new *controls, int num_controls) | |
2294 | { | |
f0fba2ad | 2295 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2296 | char prefixed_name[44], *name; |
3e8e1952 IM |
2297 | int err, i; |
2298 | ||
2299 | for (i = 0; i < num_controls; i++) { | |
2300 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2301 | if (codec->name_prefix) { |
2302 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2303 | codec->name_prefix, control->name); | |
2304 | name = prefixed_name; | |
2305 | } else { | |
2306 | name = control->name; | |
2307 | } | |
2308 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2309 | if (err < 0) { |
082100dc | 2310 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2311 | codec->name, name, err); |
3e8e1952 IM |
2312 | return err; |
2313 | } | |
2314 | } | |
2315 | ||
2316 | return 0; | |
2317 | } | |
2318 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2319 | ||
db2a4165 FM |
2320 | /** |
2321 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2322 | * @kcontrol: mixer control | |
2323 | * @uinfo: control element information | |
2324 | * | |
2325 | * Callback to provide information about a double enumerated | |
2326 | * mixer control. | |
2327 | * | |
2328 | * Returns 0 for success. | |
2329 | */ | |
2330 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2331 | struct snd_ctl_elem_info *uinfo) | |
2332 | { | |
2333 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2334 | ||
2335 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2336 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2337 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2338 | |
f8ba0b7b JS |
2339 | if (uinfo->value.enumerated.item > e->max - 1) |
2340 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2341 | strcpy(uinfo->value.enumerated.name, |
2342 | e->texts[uinfo->value.enumerated.item]); | |
2343 | return 0; | |
2344 | } | |
2345 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2346 | ||
2347 | /** | |
2348 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2349 | * @kcontrol: mixer control | |
ac11a2b3 | 2350 | * @ucontrol: control element information |
db2a4165 FM |
2351 | * |
2352 | * Callback to get the value of a double enumerated mixer. | |
2353 | * | |
2354 | * Returns 0 for success. | |
2355 | */ | |
2356 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2357 | struct snd_ctl_elem_value *ucontrol) | |
2358 | { | |
2359 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2360 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2361 | unsigned int val, bitmask; |
db2a4165 | 2362 | |
f8ba0b7b | 2363 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2364 | ; |
2365 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2366 | ucontrol->value.enumerated.item[0] |
2367 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2368 | if (e->shift_l != e->shift_r) |
2369 | ucontrol->value.enumerated.item[1] = | |
2370 | (val >> e->shift_r) & (bitmask - 1); | |
2371 | ||
2372 | return 0; | |
2373 | } | |
2374 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2375 | ||
2376 | /** | |
2377 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2378 | * @kcontrol: mixer control | |
ac11a2b3 | 2379 | * @ucontrol: control element information |
db2a4165 FM |
2380 | * |
2381 | * Callback to set the value of a double enumerated mixer. | |
2382 | * | |
2383 | * Returns 0 for success. | |
2384 | */ | |
2385 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2386 | struct snd_ctl_elem_value *ucontrol) | |
2387 | { | |
2388 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2389 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2390 | unsigned int val; |
2391 | unsigned int mask, bitmask; | |
db2a4165 | 2392 | |
f8ba0b7b | 2393 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2394 | ; |
f8ba0b7b | 2395 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2396 | return -EINVAL; |
2397 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2398 | mask = (bitmask - 1) << e->shift_l; | |
2399 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2400 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2401 | return -EINVAL; |
2402 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2403 | mask |= (bitmask - 1) << e->shift_r; | |
2404 | } | |
2405 | ||
6c508c62 | 2406 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2407 | } |
2408 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2409 | ||
2e72f8e3 PU |
2410 | /** |
2411 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2412 | * @kcontrol: mixer control | |
2413 | * @ucontrol: control element information | |
2414 | * | |
2415 | * Callback to get the value of a double semi enumerated mixer. | |
2416 | * | |
2417 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2418 | * used for handling bitfield coded enumeration for example. | |
2419 | * | |
2420 | * Returns 0 for success. | |
2421 | */ | |
2422 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2423 | struct snd_ctl_elem_value *ucontrol) | |
2424 | { | |
2425 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2426 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2427 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2428 | |
2429 | reg_val = snd_soc_read(codec, e->reg); | |
2430 | val = (reg_val >> e->shift_l) & e->mask; | |
2431 | for (mux = 0; mux < e->max; mux++) { | |
2432 | if (val == e->values[mux]) | |
2433 | break; | |
2434 | } | |
2435 | ucontrol->value.enumerated.item[0] = mux; | |
2436 | if (e->shift_l != e->shift_r) { | |
2437 | val = (reg_val >> e->shift_r) & e->mask; | |
2438 | for (mux = 0; mux < e->max; mux++) { | |
2439 | if (val == e->values[mux]) | |
2440 | break; | |
2441 | } | |
2442 | ucontrol->value.enumerated.item[1] = mux; | |
2443 | } | |
2444 | ||
2445 | return 0; | |
2446 | } | |
2447 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2448 | ||
2449 | /** | |
2450 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2451 | * @kcontrol: mixer control | |
2452 | * @ucontrol: control element information | |
2453 | * | |
2454 | * Callback to set the value of a double semi enumerated mixer. | |
2455 | * | |
2456 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2457 | * used for handling bitfield coded enumeration for example. | |
2458 | * | |
2459 | * Returns 0 for success. | |
2460 | */ | |
2461 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2462 | struct snd_ctl_elem_value *ucontrol) | |
2463 | { | |
2464 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2465 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2466 | unsigned int val; |
2467 | unsigned int mask; | |
2e72f8e3 PU |
2468 | |
2469 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2470 | return -EINVAL; | |
2471 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2472 | mask = e->mask << e->shift_l; | |
2473 | if (e->shift_l != e->shift_r) { | |
2474 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2475 | return -EINVAL; | |
2476 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2477 | mask |= e->mask << e->shift_r; | |
2478 | } | |
2479 | ||
6c508c62 | 2480 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2481 | } |
2482 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2483 | ||
db2a4165 FM |
2484 | /** |
2485 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2486 | * @kcontrol: mixer control | |
2487 | * @uinfo: control element information | |
2488 | * | |
2489 | * Callback to provide information about an external enumerated | |
2490 | * single mixer. | |
2491 | * | |
2492 | * Returns 0 for success. | |
2493 | */ | |
2494 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2495 | struct snd_ctl_elem_info *uinfo) | |
2496 | { | |
2497 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2498 | ||
2499 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2500 | uinfo->count = 1; | |
f8ba0b7b | 2501 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2502 | |
f8ba0b7b JS |
2503 | if (uinfo->value.enumerated.item > e->max - 1) |
2504 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2505 | strcpy(uinfo->value.enumerated.name, |
2506 | e->texts[uinfo->value.enumerated.item]); | |
2507 | return 0; | |
2508 | } | |
2509 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2510 | ||
2511 | /** | |
2512 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2513 | * @kcontrol: mixer control | |
2514 | * @uinfo: control element information | |
2515 | * | |
2516 | * Callback to provide information about a single external mixer control. | |
2517 | * | |
2518 | * Returns 0 for success. | |
2519 | */ | |
2520 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2521 | struct snd_ctl_elem_info *uinfo) | |
2522 | { | |
a7a4ac86 PZ |
2523 | int max = kcontrol->private_value; |
2524 | ||
fd5dfad9 | 2525 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2526 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2527 | else | |
2528 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2529 | |
db2a4165 FM |
2530 | uinfo->count = 1; |
2531 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2532 | uinfo->value.integer.max = max; |
db2a4165 FM |
2533 | return 0; |
2534 | } | |
2535 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2536 | ||
db2a4165 FM |
2537 | /** |
2538 | * snd_soc_info_volsw - single mixer info callback | |
2539 | * @kcontrol: mixer control | |
2540 | * @uinfo: control element information | |
2541 | * | |
2542 | * Callback to provide information about a single mixer control. | |
2543 | * | |
2544 | * Returns 0 for success. | |
2545 | */ | |
2546 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2547 | struct snd_ctl_elem_info *uinfo) | |
2548 | { | |
4eaa9819 JS |
2549 | struct soc_mixer_control *mc = |
2550 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2551 | int platform_max; |
762b8df7 | 2552 | unsigned int shift = mc->shift; |
815ecf8d | 2553 | unsigned int rshift = mc->rshift; |
db2a4165 | 2554 | |
d11bb4a9 PU |
2555 | if (!mc->platform_max) |
2556 | mc->platform_max = mc->max; | |
2557 | platform_max = mc->platform_max; | |
2558 | ||
2559 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2560 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2561 | else | |
2562 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2563 | ||
db2a4165 FM |
2564 | uinfo->count = shift == rshift ? 1 : 2; |
2565 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2566 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2567 | return 0; |
2568 | } | |
2569 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2570 | ||
2571 | /** | |
2572 | * snd_soc_get_volsw - single mixer get callback | |
2573 | * @kcontrol: mixer control | |
ac11a2b3 | 2574 | * @ucontrol: control element information |
db2a4165 FM |
2575 | * |
2576 | * Callback to get the value of a single mixer control. | |
2577 | * | |
2578 | * Returns 0 for success. | |
2579 | */ | |
2580 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2581 | struct snd_ctl_elem_value *ucontrol) | |
2582 | { | |
4eaa9819 JS |
2583 | struct soc_mixer_control *mc = |
2584 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2585 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2586 | unsigned int reg = mc->reg; |
2587 | unsigned int shift = mc->shift; | |
2588 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2589 | int max = mc->max; |
815ecf8d JS |
2590 | unsigned int mask = (1 << fls(max)) - 1; |
2591 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2592 | |
2593 | ucontrol->value.integer.value[0] = | |
2594 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2595 | if (shift != rshift) | |
2596 | ucontrol->value.integer.value[1] = | |
2597 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2598 | if (invert) { | |
2599 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2600 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2601 | if (shift != rshift) |
2602 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2603 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2604 | } |
2605 | ||
2606 | return 0; | |
2607 | } | |
2608 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2609 | ||
2610 | /** | |
2611 | * snd_soc_put_volsw - single mixer put callback | |
2612 | * @kcontrol: mixer control | |
ac11a2b3 | 2613 | * @ucontrol: control element information |
db2a4165 FM |
2614 | * |
2615 | * Callback to set the value of a single mixer control. | |
2616 | * | |
2617 | * Returns 0 for success. | |
2618 | */ | |
2619 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2620 | struct snd_ctl_elem_value *ucontrol) | |
2621 | { | |
4eaa9819 JS |
2622 | struct soc_mixer_control *mc = |
2623 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2624 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2625 | unsigned int reg = mc->reg; |
2626 | unsigned int shift = mc->shift; | |
2627 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2628 | int max = mc->max; |
815ecf8d JS |
2629 | unsigned int mask = (1 << fls(max)) - 1; |
2630 | unsigned int invert = mc->invert; | |
46f5822f | 2631 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2632 | |
2633 | val = (ucontrol->value.integer.value[0] & mask); | |
2634 | if (invert) | |
a7a4ac86 | 2635 | val = max - val; |
db2a4165 FM |
2636 | val_mask = mask << shift; |
2637 | val = val << shift; | |
2638 | if (shift != rshift) { | |
2639 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2640 | if (invert) | |
a7a4ac86 | 2641 | val2 = max - val2; |
db2a4165 FM |
2642 | val_mask |= mask << rshift; |
2643 | val |= val2 << rshift; | |
2644 | } | |
6c508c62 | 2645 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2646 | } |
2647 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2648 | ||
2649 | /** | |
2650 | * snd_soc_info_volsw_2r - double mixer info callback | |
2651 | * @kcontrol: mixer control | |
2652 | * @uinfo: control element information | |
2653 | * | |
2654 | * Callback to provide information about a double mixer control that | |
2655 | * spans 2 codec registers. | |
2656 | * | |
2657 | * Returns 0 for success. | |
2658 | */ | |
2659 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2660 | struct snd_ctl_elem_info *uinfo) | |
2661 | { | |
4eaa9819 JS |
2662 | struct soc_mixer_control *mc = |
2663 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2664 | int platform_max; |
a7a4ac86 | 2665 | |
d11bb4a9 PU |
2666 | if (!mc->platform_max) |
2667 | mc->platform_max = mc->max; | |
2668 | platform_max = mc->platform_max; | |
2669 | ||
2670 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2671 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2672 | else | |
2673 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2674 | |
db2a4165 FM |
2675 | uinfo->count = 2; |
2676 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2677 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2678 | return 0; |
2679 | } | |
2680 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2681 | ||
2682 | /** | |
2683 | * snd_soc_get_volsw_2r - double mixer get callback | |
2684 | * @kcontrol: mixer control | |
ac11a2b3 | 2685 | * @ucontrol: control element information |
db2a4165 FM |
2686 | * |
2687 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2688 | * | |
2689 | * Returns 0 for success. | |
2690 | */ | |
2691 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2692 | struct snd_ctl_elem_value *ucontrol) | |
2693 | { | |
4eaa9819 JS |
2694 | struct soc_mixer_control *mc = |
2695 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2696 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2697 | unsigned int reg = mc->reg; |
2698 | unsigned int reg2 = mc->rreg; | |
2699 | unsigned int shift = mc->shift; | |
4eaa9819 | 2700 | int max = mc->max; |
46f5822f | 2701 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2702 | unsigned int invert = mc->invert; |
db2a4165 FM |
2703 | |
2704 | ucontrol->value.integer.value[0] = | |
2705 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2706 | ucontrol->value.integer.value[1] = | |
2707 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2708 | if (invert) { | |
2709 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2710 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2711 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2712 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2713 | } |
2714 | ||
2715 | return 0; | |
2716 | } | |
2717 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2718 | ||
2719 | /** | |
2720 | * snd_soc_put_volsw_2r - double mixer set callback | |
2721 | * @kcontrol: mixer control | |
ac11a2b3 | 2722 | * @ucontrol: control element information |
db2a4165 FM |
2723 | * |
2724 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2725 | * | |
2726 | * Returns 0 for success. | |
2727 | */ | |
2728 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2729 | struct snd_ctl_elem_value *ucontrol) | |
2730 | { | |
4eaa9819 JS |
2731 | struct soc_mixer_control *mc = |
2732 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2733 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2734 | unsigned int reg = mc->reg; |
2735 | unsigned int reg2 = mc->rreg; | |
2736 | unsigned int shift = mc->shift; | |
4eaa9819 | 2737 | int max = mc->max; |
815ecf8d JS |
2738 | unsigned int mask = (1 << fls(max)) - 1; |
2739 | unsigned int invert = mc->invert; | |
db2a4165 | 2740 | int err; |
46f5822f | 2741 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2742 | |
2743 | val_mask = mask << shift; | |
2744 | val = (ucontrol->value.integer.value[0] & mask); | |
2745 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2746 | ||
2747 | if (invert) { | |
a7a4ac86 PZ |
2748 | val = max - val; |
2749 | val2 = max - val2; | |
db2a4165 FM |
2750 | } |
2751 | ||
2752 | val = val << shift; | |
2753 | val2 = val2 << shift; | |
2754 | ||
6c508c62 | 2755 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2756 | if (err < 0) |
db2a4165 FM |
2757 | return err; |
2758 | ||
6c508c62 | 2759 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2760 | return err; |
2761 | } | |
2762 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2763 | ||
e13ac2e9 MB |
2764 | /** |
2765 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2766 | * @kcontrol: mixer control | |
2767 | * @uinfo: control element information | |
2768 | * | |
2769 | * Callback to provide information about a signed mixer control. | |
2770 | * | |
2771 | * Returns 0 for success. | |
2772 | */ | |
2773 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2774 | struct snd_ctl_elem_info *uinfo) | |
2775 | { | |
4eaa9819 JS |
2776 | struct soc_mixer_control *mc = |
2777 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2778 | int platform_max; |
4eaa9819 | 2779 | int min = mc->min; |
e13ac2e9 | 2780 | |
d11bb4a9 PU |
2781 | if (!mc->platform_max) |
2782 | mc->platform_max = mc->max; | |
2783 | platform_max = mc->platform_max; | |
2784 | ||
e13ac2e9 MB |
2785 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2786 | uinfo->count = 2; | |
2787 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2788 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2789 | return 0; |
2790 | } | |
2791 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2792 | ||
2793 | /** | |
2794 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2795 | * @kcontrol: mixer control | |
ac11a2b3 | 2796 | * @ucontrol: control element information |
e13ac2e9 MB |
2797 | * |
2798 | * Callback to get the value of a signed mixer control. | |
2799 | * | |
2800 | * Returns 0 for success. | |
2801 | */ | |
2802 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2803 | struct snd_ctl_elem_value *ucontrol) | |
2804 | { | |
4eaa9819 JS |
2805 | struct soc_mixer_control *mc = |
2806 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2807 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2808 | unsigned int reg = mc->reg; |
4eaa9819 | 2809 | int min = mc->min; |
e13ac2e9 MB |
2810 | int val = snd_soc_read(codec, reg); |
2811 | ||
2812 | ucontrol->value.integer.value[0] = | |
2813 | ((signed char)(val & 0xff))-min; | |
2814 | ucontrol->value.integer.value[1] = | |
2815 | ((signed char)((val >> 8) & 0xff))-min; | |
2816 | return 0; | |
2817 | } | |
2818 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2819 | ||
2820 | /** | |
2821 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2822 | * @kcontrol: mixer control | |
ac11a2b3 | 2823 | * @ucontrol: control element information |
e13ac2e9 MB |
2824 | * |
2825 | * Callback to set the value of a signed mixer control. | |
2826 | * | |
2827 | * Returns 0 for success. | |
2828 | */ | |
2829 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2830 | struct snd_ctl_elem_value *ucontrol) | |
2831 | { | |
4eaa9819 JS |
2832 | struct soc_mixer_control *mc = |
2833 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2834 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2835 | unsigned int reg = mc->reg; |
4eaa9819 | 2836 | int min = mc->min; |
46f5822f | 2837 | unsigned int val; |
e13ac2e9 MB |
2838 | |
2839 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2840 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2841 | ||
6c508c62 | 2842 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2843 | } |
2844 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2845 | ||
637d3847 PU |
2846 | /** |
2847 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2848 | * | |
2849 | * @codec: where to look for the control | |
2850 | * @name: Name of the control | |
2851 | * @max: new maximum limit | |
2852 | * | |
2853 | * Return 0 for success, else error. | |
2854 | */ | |
2855 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2856 | const char *name, int max) | |
2857 | { | |
f0fba2ad | 2858 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2859 | struct snd_kcontrol *kctl; |
2860 | struct soc_mixer_control *mc; | |
2861 | int found = 0; | |
2862 | int ret = -EINVAL; | |
2863 | ||
2864 | /* Sanity check for name and max */ | |
2865 | if (unlikely(!name || max <= 0)) | |
2866 | return -EINVAL; | |
2867 | ||
2868 | list_for_each_entry(kctl, &card->controls, list) { | |
2869 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2870 | found = 1; | |
2871 | break; | |
2872 | } | |
2873 | } | |
2874 | if (found) { | |
2875 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2876 | if (max <= mc->max) { | |
d11bb4a9 | 2877 | mc->platform_max = max; |
637d3847 PU |
2878 | ret = 0; |
2879 | } | |
2880 | } | |
2881 | return ret; | |
2882 | } | |
2883 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2884 | ||
b6f4bb38 | 2885 | /** |
2886 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2887 | * mixer info callback | |
2888 | * @kcontrol: mixer control | |
2889 | * @uinfo: control element information | |
2890 | * | |
2891 | * Returns 0 for success. | |
2892 | */ | |
2893 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2894 | struct snd_ctl_elem_info *uinfo) | |
2895 | { | |
2896 | struct soc_mixer_control *mc = | |
2897 | (struct soc_mixer_control *)kcontrol->private_value; | |
2898 | int max = mc->max; | |
2899 | int min = mc->min; | |
2900 | ||
2901 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2902 | uinfo->count = 2; | |
2903 | uinfo->value.integer.min = 0; | |
2904 | uinfo->value.integer.max = max-min; | |
2905 | ||
2906 | return 0; | |
2907 | } | |
2908 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2909 | ||
2910 | /** | |
2911 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2912 | * mixer get callback | |
2913 | * @kcontrol: mixer control | |
2914 | * @uinfo: control element information | |
2915 | * | |
2916 | * Returns 0 for success. | |
2917 | */ | |
2918 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2919 | struct snd_ctl_elem_value *ucontrol) | |
2920 | { | |
2921 | struct soc_mixer_control *mc = | |
2922 | (struct soc_mixer_control *)kcontrol->private_value; | |
2923 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2924 | unsigned int mask = (1<<mc->shift)-1; | |
2925 | int min = mc->min; | |
2926 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2927 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2928 | ||
20630c7f SL |
2929 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2930 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2931 | return 0; |
2932 | } | |
2933 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2934 | ||
2935 | /** | |
2936 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2937 | * mixer put callback | |
2938 | * @kcontrol: mixer control | |
2939 | * @uinfo: control element information | |
2940 | * | |
2941 | * Returns 0 for success. | |
2942 | */ | |
2943 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2944 | struct snd_ctl_elem_value *ucontrol) | |
2945 | { | |
2946 | struct soc_mixer_control *mc = | |
2947 | (struct soc_mixer_control *)kcontrol->private_value; | |
2948 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2949 | unsigned int mask = (1<<mc->shift)-1; | |
2950 | int min = mc->min; | |
2951 | int ret; | |
2952 | unsigned int val, valr, oval, ovalr; | |
2953 | ||
2954 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2955 | val &= mask; | |
2956 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2957 | valr &= mask; | |
2958 | ||
2959 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2960 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2961 | ||
2962 | ret = 0; | |
2963 | if (oval != val) { | |
2964 | ret = snd_soc_write(codec, mc->reg, val); | |
2965 | if (ret < 0) | |
f1df5aec | 2966 | return ret; |
b6f4bb38 | 2967 | } |
2968 | if (ovalr != valr) { | |
2969 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2970 | if (ret < 0) | |
f1df5aec | 2971 | return ret; |
b6f4bb38 | 2972 | } |
2973 | ||
2974 | return 0; | |
2975 | } | |
2976 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2977 | ||
8c6529db LG |
2978 | /** |
2979 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2980 | * @dai: DAI | |
2981 | * @clk_id: DAI specific clock ID | |
2982 | * @freq: new clock frequency in Hz | |
2983 | * @dir: new clock direction - input/output. | |
2984 | * | |
2985 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2986 | */ | |
2987 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2988 | unsigned int freq, int dir) | |
2989 | { | |
f0fba2ad LG |
2990 | if (dai->driver && dai->driver->ops->set_sysclk) |
2991 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2992 | else |
2993 | return -EINVAL; | |
2994 | } | |
2995 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2996 | ||
2997 | /** | |
2998 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2999 | * @dai: DAI | |
ac11a2b3 | 3000 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3001 | * @div: new clock divisor. |
3002 | * | |
3003 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3004 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3005 | * and frame clocks as low as possible to save system power. | |
3006 | */ | |
3007 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3008 | int div_id, int div) | |
3009 | { | |
f0fba2ad LG |
3010 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3011 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3012 | else |
3013 | return -EINVAL; | |
3014 | } | |
3015 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3016 | ||
3017 | /** | |
3018 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3019 | * @dai: DAI | |
3020 | * @pll_id: DAI specific PLL ID | |
85488037 | 3021 | * @source: DAI specific source for the PLL |
8c6529db LG |
3022 | * @freq_in: PLL input clock frequency in Hz |
3023 | * @freq_out: requested PLL output clock frequency in Hz | |
3024 | * | |
3025 | * Configures and enables PLL to generate output clock based on input clock. | |
3026 | */ | |
85488037 MB |
3027 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3028 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3029 | { |
f0fba2ad LG |
3030 | if (dai->driver && dai->driver->ops->set_pll) |
3031 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3032 | freq_in, freq_out); |
8c6529db LG |
3033 | else |
3034 | return -EINVAL; | |
3035 | } | |
3036 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3037 | ||
3038 | /** | |
3039 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3040 | * @dai: DAI | |
8c6529db LG |
3041 | * @fmt: SND_SOC_DAIFMT_ format value. |
3042 | * | |
3043 | * Configures the DAI hardware format and clocking. | |
3044 | */ | |
3045 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3046 | { | |
f0fba2ad LG |
3047 | if (dai->driver && dai->driver->ops->set_fmt) |
3048 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3049 | else |
3050 | return -EINVAL; | |
3051 | } | |
3052 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3053 | ||
3054 | /** | |
3055 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3056 | * @dai: DAI | |
a5479e38 DR |
3057 | * @tx_mask: bitmask representing active TX slots. |
3058 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3059 | * @slots: Number of slots in use. |
a5479e38 | 3060 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3061 | * |
3062 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3063 | * specific. | |
3064 | */ | |
3065 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3066 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3067 | { |
f0fba2ad LG |
3068 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3069 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3070 | slots, slot_width); |
8c6529db LG |
3071 | else |
3072 | return -EINVAL; | |
3073 | } | |
3074 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3075 | ||
472df3cb BS |
3076 | /** |
3077 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3078 | * @dai: DAI | |
3079 | * @tx_num: how many TX channels | |
3080 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3081 | * 0~num-1 uses | |
3082 | * @rx_num: how many RX channels | |
3083 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3084 | * 0~num-1 uses | |
3085 | * | |
3086 | * configure the relationship between channel number and TDM slot number. | |
3087 | */ | |
3088 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3089 | unsigned int tx_num, unsigned int *tx_slot, | |
3090 | unsigned int rx_num, unsigned int *rx_slot) | |
3091 | { | |
f0fba2ad LG |
3092 | if (dai->driver && dai->driver->ops->set_channel_map) |
3093 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3094 | rx_num, rx_slot); |
3095 | else | |
3096 | return -EINVAL; | |
3097 | } | |
3098 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3099 | ||
8c6529db LG |
3100 | /** |
3101 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3102 | * @dai: DAI | |
3103 | * @tristate: tristate enable | |
3104 | * | |
3105 | * Tristates the DAI so that others can use it. | |
3106 | */ | |
3107 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3108 | { | |
f0fba2ad LG |
3109 | if (dai->driver && dai->driver->ops->set_tristate) |
3110 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3111 | else |
3112 | return -EINVAL; | |
3113 | } | |
3114 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3115 | ||
3116 | /** | |
3117 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3118 | * @dai: DAI | |
3119 | * @mute: mute enable | |
3120 | * | |
3121 | * Mutes the DAI DAC. | |
3122 | */ | |
3123 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3124 | { | |
f0fba2ad LG |
3125 | if (dai->driver && dai->driver->ops->digital_mute) |
3126 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3127 | else |
3128 | return -EINVAL; | |
3129 | } | |
3130 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3131 | ||
c5af3a2e MB |
3132 | /** |
3133 | * snd_soc_register_card - Register a card with the ASoC core | |
3134 | * | |
ac11a2b3 | 3135 | * @card: Card to register |
c5af3a2e | 3136 | * |
c5af3a2e | 3137 | */ |
70a7ca34 | 3138 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3139 | { |
f0fba2ad LG |
3140 | int i; |
3141 | ||
c5af3a2e MB |
3142 | if (!card->name || !card->dev) |
3143 | return -EINVAL; | |
3144 | ||
111c6419 SW |
3145 | snd_soc_initialize_card_lists(card); |
3146 | ||
150dd2f8 VK |
3147 | soc_init_card_debugfs(card); |
3148 | ||
2eea392d JN |
3149 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3150 | (card->num_links + card->num_aux_devs), | |
3151 | GFP_KERNEL); | |
f0fba2ad LG |
3152 | if (card->rtd == NULL) |
3153 | return -ENOMEM; | |
2eea392d | 3154 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3155 | |
3156 | for (i = 0; i < card->num_links; i++) | |
3157 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3158 | ||
c5af3a2e MB |
3159 | INIT_LIST_HEAD(&card->list); |
3160 | card->instantiated = 0; | |
f0fba2ad | 3161 | mutex_init(&card->mutex); |
c5af3a2e MB |
3162 | |
3163 | mutex_lock(&client_mutex); | |
3164 | list_add(&card->list, &card_list); | |
435c5e25 | 3165 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3166 | mutex_unlock(&client_mutex); |
3167 | ||
3168 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3169 | ||
3170 | return 0; | |
3171 | } | |
70a7ca34 | 3172 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3173 | |
3174 | /** | |
3175 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3176 | * | |
ac11a2b3 | 3177 | * @card: Card to unregister |
c5af3a2e | 3178 | * |
c5af3a2e | 3179 | */ |
70a7ca34 | 3180 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3181 | { |
b0e26485 VK |
3182 | if (card->instantiated) |
3183 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3184 | mutex_lock(&client_mutex); |
3185 | list_del(&card->list); | |
3186 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3187 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3188 | ||
3189 | return 0; | |
3190 | } | |
70a7ca34 | 3191 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3192 | |
f0fba2ad LG |
3193 | /* |
3194 | * Simplify DAI link configuration by removing ".-1" from device names | |
3195 | * and sanitizing names. | |
3196 | */ | |
0b9a214a | 3197 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3198 | { |
3199 | char *found, name[NAME_SIZE]; | |
3200 | int id1, id2; | |
3201 | ||
3202 | if (dev_name(dev) == NULL) | |
3203 | return NULL; | |
3204 | ||
58818a77 | 3205 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3206 | |
3207 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3208 | found = strstr(name, dev->driver->name); | |
3209 | if (found) { | |
3210 | /* get ID */ | |
3211 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3212 | ||
3213 | /* discard ID from name if ID == -1 */ | |
3214 | if (*id == -1) | |
3215 | found[strlen(dev->driver->name)] = '\0'; | |
3216 | } | |
3217 | ||
3218 | } else { | |
3219 | /* I2C component devices are named "bus-addr" */ | |
3220 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3221 | char tmp[NAME_SIZE]; | |
3222 | ||
3223 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3224 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3225 | |
3226 | /* sanitize component name for DAI link creation */ | |
3227 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3228 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3229 | } else |
3230 | *id = 0; | |
3231 | } | |
3232 | ||
3233 | return kstrdup(name, GFP_KERNEL); | |
3234 | } | |
3235 | ||
3236 | /* | |
3237 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3238 | * any ".-1" and using the DAI name (instead of device name). | |
3239 | */ | |
3240 | static inline char *fmt_multiple_name(struct device *dev, | |
3241 | struct snd_soc_dai_driver *dai_drv) | |
3242 | { | |
3243 | if (dai_drv->name == NULL) { | |
3244 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3245 | dev_name(dev)); | |
3246 | return NULL; | |
3247 | } | |
3248 | ||
3249 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3250 | } | |
3251 | ||
9115171a MB |
3252 | /** |
3253 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3254 | * | |
ac11a2b3 | 3255 | * @dai: DAI to register |
9115171a | 3256 | */ |
f0fba2ad LG |
3257 | int snd_soc_register_dai(struct device *dev, |
3258 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3259 | { |
f0fba2ad LG |
3260 | struct snd_soc_dai *dai; |
3261 | ||
3262 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3263 | |
f0fba2ad LG |
3264 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3265 | if (dai == NULL) | |
3266 | return -ENOMEM; | |
9115171a | 3267 | |
f0fba2ad LG |
3268 | /* create DAI component name */ |
3269 | dai->name = fmt_single_name(dev, &dai->id); | |
3270 | if (dai->name == NULL) { | |
3271 | kfree(dai); | |
3272 | return -ENOMEM; | |
3273 | } | |
6335d055 | 3274 | |
f0fba2ad LG |
3275 | dai->dev = dev; |
3276 | dai->driver = dai_drv; | |
3277 | if (!dai->driver->ops) | |
3278 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3279 | |
3280 | mutex_lock(&client_mutex); | |
3281 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3282 | snd_soc_instantiate_cards(); |
9115171a MB |
3283 | mutex_unlock(&client_mutex); |
3284 | ||
3285 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3286 | ||
3287 | return 0; | |
3288 | } | |
3289 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3290 | ||
3291 | /** | |
3292 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3293 | * | |
ac11a2b3 | 3294 | * @dai: DAI to unregister |
9115171a | 3295 | */ |
f0fba2ad | 3296 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3297 | { |
f0fba2ad LG |
3298 | struct snd_soc_dai *dai; |
3299 | ||
3300 | list_for_each_entry(dai, &dai_list, list) { | |
3301 | if (dev == dai->dev) | |
3302 | goto found; | |
3303 | } | |
3304 | return; | |
3305 | ||
3306 | found: | |
9115171a MB |
3307 | mutex_lock(&client_mutex); |
3308 | list_del(&dai->list); | |
3309 | mutex_unlock(&client_mutex); | |
3310 | ||
3311 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3312 | kfree(dai->name); |
3313 | kfree(dai); | |
9115171a MB |
3314 | } |
3315 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3316 | ||
3317 | /** | |
3318 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3319 | * | |
ac11a2b3 MB |
3320 | * @dai: Array of DAIs to register |
3321 | * @count: Number of DAIs | |
9115171a | 3322 | */ |
f0fba2ad LG |
3323 | int snd_soc_register_dais(struct device *dev, |
3324 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3325 | { |
f0fba2ad LG |
3326 | struct snd_soc_dai *dai; |
3327 | int i, ret = 0; | |
3328 | ||
720ffa4c | 3329 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3330 | |
3331 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3332 | |
3333 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3334 | if (dai == NULL) { |
3335 | ret = -ENOMEM; | |
3336 | goto err; | |
3337 | } | |
f0fba2ad LG |
3338 | |
3339 | /* create DAI component name */ | |
3340 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3341 | if (dai->name == NULL) { | |
3342 | kfree(dai); | |
3343 | ret = -EINVAL; | |
9115171a | 3344 | goto err; |
f0fba2ad LG |
3345 | } |
3346 | ||
3347 | dai->dev = dev; | |
f0fba2ad | 3348 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3349 | if (dai->driver->id) |
3350 | dai->id = dai->driver->id; | |
3351 | else | |
3352 | dai->id = i; | |
f0fba2ad LG |
3353 | if (!dai->driver->ops) |
3354 | dai->driver->ops = &null_dai_ops; | |
3355 | ||
3356 | mutex_lock(&client_mutex); | |
3357 | list_add(&dai->list, &dai_list); | |
3358 | mutex_unlock(&client_mutex); | |
3359 | ||
3360 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3361 | } |
3362 | ||
1dcb4f38 | 3363 | mutex_lock(&client_mutex); |
f0fba2ad | 3364 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3365 | mutex_unlock(&client_mutex); |
9115171a MB |
3366 | return 0; |
3367 | ||
3368 | err: | |
3369 | for (i--; i >= 0; i--) | |
f0fba2ad | 3370 | snd_soc_unregister_dai(dev); |
9115171a MB |
3371 | |
3372 | return ret; | |
3373 | } | |
3374 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3375 | ||
3376 | /** | |
3377 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3378 | * | |
ac11a2b3 MB |
3379 | * @dai: Array of DAIs to unregister |
3380 | * @count: Number of DAIs | |
9115171a | 3381 | */ |
f0fba2ad | 3382 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3383 | { |
3384 | int i; | |
3385 | ||
3386 | for (i = 0; i < count; i++) | |
f0fba2ad | 3387 | snd_soc_unregister_dai(dev); |
9115171a MB |
3388 | } |
3389 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3390 | ||
12a48a8c MB |
3391 | /** |
3392 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3393 | * | |
ac11a2b3 | 3394 | * @platform: platform to register |
12a48a8c | 3395 | */ |
f0fba2ad LG |
3396 | int snd_soc_register_platform(struct device *dev, |
3397 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3398 | { |
f0fba2ad LG |
3399 | struct snd_soc_platform *platform; |
3400 | ||
3401 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3402 | ||
3403 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3404 | if (platform == NULL) | |
3405 | return -ENOMEM; | |
3406 | ||
3407 | /* create platform component name */ | |
3408 | platform->name = fmt_single_name(dev, &platform->id); | |
3409 | if (platform->name == NULL) { | |
3410 | kfree(platform); | |
3411 | return -ENOMEM; | |
3412 | } | |
12a48a8c | 3413 | |
f0fba2ad LG |
3414 | platform->dev = dev; |
3415 | platform->driver = platform_drv; | |
12a48a8c MB |
3416 | |
3417 | mutex_lock(&client_mutex); | |
3418 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3419 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3420 | mutex_unlock(&client_mutex); |
3421 | ||
3422 | pr_debug("Registered platform '%s'\n", platform->name); | |
3423 | ||
3424 | return 0; | |
3425 | } | |
3426 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3427 | ||
3428 | /** | |
3429 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3430 | * | |
ac11a2b3 | 3431 | * @platform: platform to unregister |
12a48a8c | 3432 | */ |
f0fba2ad | 3433 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3434 | { |
f0fba2ad LG |
3435 | struct snd_soc_platform *platform; |
3436 | ||
3437 | list_for_each_entry(platform, &platform_list, list) { | |
3438 | if (dev == platform->dev) | |
3439 | goto found; | |
3440 | } | |
3441 | return; | |
3442 | ||
3443 | found: | |
12a48a8c MB |
3444 | mutex_lock(&client_mutex); |
3445 | list_del(&platform->list); | |
3446 | mutex_unlock(&client_mutex); | |
3447 | ||
3448 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3449 | kfree(platform->name); |
3450 | kfree(platform); | |
12a48a8c MB |
3451 | } |
3452 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3453 | ||
151ab22c MB |
3454 | static u64 codec_format_map[] = { |
3455 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3456 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3457 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3458 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3459 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3460 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3461 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3462 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3463 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3464 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3465 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3466 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3467 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3468 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3469 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3470 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3471 | }; | |
3472 | ||
3473 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3474 | * the endianness of the data but we're using the CPU format | |
3475 | * definitions which do need to include endianness so we ensure that | |
3476 | * codec DAIs always have both big and little endian variants set. | |
3477 | */ | |
3478 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3479 | { | |
3480 | int i; | |
3481 | ||
3482 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3483 | if (stream->formats & codec_format_map[i]) | |
3484 | stream->formats |= codec_format_map[i]; | |
3485 | } | |
3486 | ||
0d0cf00a MB |
3487 | /** |
3488 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3489 | * | |
ac11a2b3 | 3490 | * @codec: codec to register |
0d0cf00a | 3491 | */ |
f0fba2ad | 3492 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3493 | const struct snd_soc_codec_driver *codec_drv, |
3494 | struct snd_soc_dai_driver *dai_drv, | |
3495 | int num_dai) | |
0d0cf00a | 3496 | { |
3335ddca | 3497 | size_t reg_size; |
f0fba2ad LG |
3498 | struct snd_soc_codec *codec; |
3499 | int ret, i; | |
151ab22c | 3500 | |
f0fba2ad LG |
3501 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3502 | ||
3503 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3504 | if (codec == NULL) | |
3505 | return -ENOMEM; | |
0d0cf00a | 3506 | |
f0fba2ad LG |
3507 | /* create CODEC component name */ |
3508 | codec->name = fmt_single_name(dev, &codec->id); | |
3509 | if (codec->name == NULL) { | |
3510 | kfree(codec); | |
3511 | return -ENOMEM; | |
3512 | } | |
3513 | ||
23bbce34 DP |
3514 | if (codec_drv->compress_type) |
3515 | codec->compress_type = codec_drv->compress_type; | |
3516 | else | |
3517 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3518 | ||
c3acec26 MB |
3519 | codec->write = codec_drv->write; |
3520 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3521 | codec->volatile_register = codec_drv->volatile_register; |
3522 | codec->readable_register = codec_drv->readable_register; | |
ce6120cc LG |
3523 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3524 | codec->dapm.dev = dev; | |
3525 | codec->dapm.codec = codec; | |
474b62d6 | 3526 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3527 | codec->dev = dev; |
3528 | codec->driver = codec_drv; | |
3529 | codec->num_dai = num_dai; | |
3530 | mutex_init(&codec->mutex); | |
ce6120cc | 3531 | |
f0fba2ad LG |
3532 | /* allocate CODEC register cache */ |
3533 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3534 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3535 | codec->reg_size = reg_size; |
3335ddca DP |
3536 | /* it is necessary to make a copy of the default register cache |
3537 | * because in the case of using a compression type that requires | |
3538 | * the default register cache to be marked as __devinitconst the | |
3539 | * kernel might have freed the array by the time we initialize | |
3540 | * the cache. | |
3541 | */ | |
2aa86323 DP |
3542 | if (codec_drv->reg_cache_default) { |
3543 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3544 | reg_size, GFP_KERNEL); | |
3545 | if (!codec->reg_def_copy) { | |
3546 | ret = -ENOMEM; | |
3547 | goto fail; | |
3548 | } | |
f0fba2ad | 3549 | } |
151ab22c MB |
3550 | } |
3551 | ||
1500b7b5 DP |
3552 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3553 | if (!codec->volatile_register) | |
3554 | codec->volatile_register = snd_soc_default_volatile_register; | |
3555 | if (!codec->readable_register) | |
3556 | codec->readable_register = snd_soc_default_readable_register; | |
3557 | } | |
3558 | ||
f0fba2ad LG |
3559 | for (i = 0; i < num_dai; i++) { |
3560 | fixup_codec_formats(&dai_drv[i].playback); | |
3561 | fixup_codec_formats(&dai_drv[i].capture); | |
3562 | } | |
3563 | ||
26b01ccd MB |
3564 | /* register any DAIs */ |
3565 | if (num_dai) { | |
3566 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3567 | if (ret < 0) | |
fdf0f54d | 3568 | goto fail; |
26b01ccd | 3569 | } |
f0fba2ad | 3570 | |
0d0cf00a MB |
3571 | mutex_lock(&client_mutex); |
3572 | list_add(&codec->list, &codec_list); | |
3573 | snd_soc_instantiate_cards(); | |
3574 | mutex_unlock(&client_mutex); | |
3575 | ||
3576 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3577 | return 0; |
f0fba2ad | 3578 | |
fdf0f54d | 3579 | fail: |
3335ddca DP |
3580 | kfree(codec->reg_def_copy); |
3581 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3582 | kfree(codec->name); |
3583 | kfree(codec); | |
3584 | return ret; | |
0d0cf00a MB |
3585 | } |
3586 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3587 | ||
3588 | /** | |
3589 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3590 | * | |
ac11a2b3 | 3591 | * @codec: codec to unregister |
0d0cf00a | 3592 | */ |
f0fba2ad | 3593 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3594 | { |
f0fba2ad LG |
3595 | struct snd_soc_codec *codec; |
3596 | int i; | |
3597 | ||
3598 | list_for_each_entry(codec, &codec_list, list) { | |
3599 | if (dev == codec->dev) | |
3600 | goto found; | |
3601 | } | |
3602 | return; | |
3603 | ||
3604 | found: | |
26b01ccd MB |
3605 | if (codec->num_dai) |
3606 | for (i = 0; i < codec->num_dai; i++) | |
3607 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3608 | |
0d0cf00a MB |
3609 | mutex_lock(&client_mutex); |
3610 | list_del(&codec->list); | |
3611 | mutex_unlock(&client_mutex); | |
3612 | ||
3613 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3614 | |
7a30a3db | 3615 | snd_soc_cache_exit(codec); |
3335ddca | 3616 | kfree(codec->reg_def_copy); |
1aafcd4d | 3617 | kfree(codec->name); |
f0fba2ad | 3618 | kfree(codec); |
0d0cf00a MB |
3619 | } |
3620 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3621 | ||
c9b3a40f | 3622 | static int __init snd_soc_init(void) |
db2a4165 | 3623 | { |
384c89e2 | 3624 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3625 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3626 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3627 | printk(KERN_WARNING |
3628 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3629 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3630 | } |
c3c5a19a | 3631 | |
8a9dab1a | 3632 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3633 | &codec_list_fops)) |
3634 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3635 | ||
8a9dab1a | 3636 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3637 | &dai_list_fops)) |
3638 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3639 | |
8a9dab1a | 3640 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3641 | &platform_list_fops)) |
3642 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3643 | #endif |
3644 | ||
db2a4165 FM |
3645 | return platform_driver_register(&soc_driver); |
3646 | } | |
4abe8e16 | 3647 | module_init(snd_soc_init); |
db2a4165 | 3648 | |
7d8c16a6 | 3649 | static void __exit snd_soc_exit(void) |
db2a4165 | 3650 | { |
384c89e2 | 3651 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3652 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3653 | #endif |
3ff3f64b | 3654 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3655 | } |
db2a4165 FM |
3656 | module_exit(snd_soc_exit); |
3657 | ||
3658 | /* Module information */ | |
d331124d | 3659 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3660 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3661 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3662 | MODULE_ALIAS("platform:soc-audio"); |