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 | ||
2624d5fa MB |
72 | /* codec register dump */ |
73 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
74 | { | |
5164d74d | 75 | int ret, i, step = 1, count = 0; |
2624d5fa | 76 | |
f0fba2ad | 77 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
78 | return 0; |
79 | ||
f0fba2ad LG |
80 | if (codec->driver->reg_cache_step) |
81 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
82 | |
83 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad | 84 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
1500b7b5 | 85 | if (codec->readable_register && !codec->readable_register(codec, i)) |
2624d5fa MB |
86 | continue; |
87 | ||
88 | count += sprintf(buf + count, "%2x: ", i); | |
89 | if (count >= PAGE_SIZE - 1) | |
90 | break; | |
91 | ||
f0fba2ad LG |
92 | if (codec->driver->display_register) { |
93 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 94 | PAGE_SIZE - count, i); |
5164d74d MB |
95 | } else { |
96 | /* If the read fails it's almost certainly due to | |
97 | * the register being volatile and the device being | |
98 | * powered off. | |
99 | */ | |
e4f078d8 | 100 | ret = snd_soc_read(codec, i); |
5164d74d MB |
101 | if (ret >= 0) |
102 | count += snprintf(buf + count, | |
103 | PAGE_SIZE - count, | |
104 | "%4x", ret); | |
105 | else | |
106 | count += snprintf(buf + count, | |
107 | PAGE_SIZE - count, | |
108 | "<no data: %d>", ret); | |
109 | } | |
2624d5fa MB |
110 | |
111 | if (count >= PAGE_SIZE - 1) | |
112 | break; | |
113 | ||
114 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
115 | if (count >= PAGE_SIZE - 1) | |
116 | break; | |
117 | } | |
118 | ||
119 | /* Truncate count; min() would cause a warning */ | |
120 | if (count >= PAGE_SIZE) | |
121 | count = PAGE_SIZE - 1; | |
122 | ||
123 | return count; | |
124 | } | |
125 | static ssize_t codec_reg_show(struct device *dev, | |
126 | struct device_attribute *attr, char *buf) | |
127 | { | |
f0fba2ad LG |
128 | struct snd_soc_pcm_runtime *rtd = |
129 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
130 | ||
131 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
132 | } |
133 | ||
134 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
135 | ||
dbe21408 MB |
136 | static ssize_t pmdown_time_show(struct device *dev, |
137 | struct device_attribute *attr, char *buf) | |
138 | { | |
f0fba2ad LG |
139 | struct snd_soc_pcm_runtime *rtd = |
140 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 141 | |
f0fba2ad | 142 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
143 | } |
144 | ||
145 | static ssize_t pmdown_time_set(struct device *dev, | |
146 | struct device_attribute *attr, | |
147 | const char *buf, size_t count) | |
148 | { | |
f0fba2ad LG |
149 | struct snd_soc_pcm_runtime *rtd = |
150 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 151 | int ret; |
dbe21408 | 152 | |
c593b520 MB |
153 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
154 | if (ret) | |
155 | return ret; | |
dbe21408 MB |
156 | |
157 | return count; | |
158 | } | |
159 | ||
160 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
161 | ||
2624d5fa MB |
162 | #ifdef CONFIG_DEBUG_FS |
163 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
164 | { | |
165 | file->private_data = inode->i_private; | |
166 | return 0; | |
167 | } | |
168 | ||
169 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
170 | size_t count, loff_t *ppos) | |
171 | { | |
172 | ssize_t ret; | |
173 | struct snd_soc_codec *codec = file->private_data; | |
174 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
175 | if (!buf) | |
176 | return -ENOMEM; | |
177 | ret = soc_codec_reg_show(codec, buf); | |
178 | if (ret >= 0) | |
179 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
180 | kfree(buf); | |
181 | return ret; | |
182 | } | |
183 | ||
184 | static ssize_t codec_reg_write_file(struct file *file, | |
185 | const char __user *user_buf, size_t count, loff_t *ppos) | |
186 | { | |
187 | char buf[32]; | |
188 | int buf_size; | |
189 | char *start = buf; | |
190 | unsigned long reg, value; | |
191 | int step = 1; | |
192 | struct snd_soc_codec *codec = file->private_data; | |
193 | ||
194 | buf_size = min(count, (sizeof(buf)-1)); | |
195 | if (copy_from_user(buf, user_buf, buf_size)) | |
196 | return -EFAULT; | |
197 | buf[buf_size] = 0; | |
198 | ||
f0fba2ad LG |
199 | if (codec->driver->reg_cache_step) |
200 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
201 | |
202 | while (*start == ' ') | |
203 | start++; | |
204 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 205 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
206 | return -EINVAL; |
207 | while (*start == ' ') | |
208 | start++; | |
209 | if (strict_strtoul(start, 16, &value)) | |
210 | return -EINVAL; | |
0d51a9cb MB |
211 | |
212 | /* Userspace has been fiddling around behind the kernel's back */ | |
213 | add_taint(TAINT_USER); | |
214 | ||
e4f078d8 | 215 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
216 | return buf_size; |
217 | } | |
218 | ||
219 | static const struct file_operations codec_reg_fops = { | |
220 | .open = codec_reg_open_file, | |
221 | .read = codec_reg_read_file, | |
222 | .write = codec_reg_write_file, | |
6038f373 | 223 | .llseek = default_llseek, |
2624d5fa MB |
224 | }; |
225 | ||
226 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
227 | { | |
d6ce4cf3 JN |
228 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
229 | ||
230 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
231 | debugfs_card_root); | |
2624d5fa MB |
232 | if (!codec->debugfs_codec_root) { |
233 | printk(KERN_WARNING | |
234 | "ASoC: Failed to create codec debugfs directory\n"); | |
235 | return; | |
236 | } | |
237 | ||
aaee8ef1 MB |
238 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
239 | &codec->cache_sync); | |
240 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
241 | &codec->cache_only); | |
242 | ||
2624d5fa MB |
243 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
244 | codec->debugfs_codec_root, | |
245 | codec, &codec_reg_fops); | |
246 | if (!codec->debugfs_reg) | |
247 | printk(KERN_WARNING | |
248 | "ASoC: Failed to create codec register debugfs file\n"); | |
249 | ||
ce6120cc | 250 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 251 | codec->debugfs_codec_root); |
ce6120cc | 252 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
253 | printk(KERN_WARNING |
254 | "Failed to create DAPM debugfs directory\n"); | |
255 | ||
ce6120cc | 256 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
257 | } |
258 | ||
259 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
260 | { | |
261 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
262 | } | |
263 | ||
c3c5a19a MB |
264 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
265 | size_t count, loff_t *ppos) | |
266 | { | |
267 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 268 | ssize_t len, ret = 0; |
c3c5a19a MB |
269 | struct snd_soc_codec *codec; |
270 | ||
271 | if (!buf) | |
272 | return -ENOMEM; | |
273 | ||
2b194f9d MB |
274 | list_for_each_entry(codec, &codec_list, list) { |
275 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
276 | codec->name); | |
277 | if (len >= 0) | |
278 | ret += len; | |
279 | if (ret > PAGE_SIZE) { | |
280 | ret = PAGE_SIZE; | |
281 | break; | |
282 | } | |
283 | } | |
c3c5a19a MB |
284 | |
285 | if (ret >= 0) | |
286 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
287 | ||
288 | kfree(buf); | |
289 | ||
290 | return ret; | |
291 | } | |
292 | ||
293 | static const struct file_operations codec_list_fops = { | |
294 | .read = codec_list_read_file, | |
295 | .llseek = default_llseek,/* read accesses f_pos */ | |
296 | }; | |
297 | ||
f3208780 MB |
298 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
299 | size_t count, loff_t *ppos) | |
300 | { | |
301 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 302 | ssize_t len, ret = 0; |
f3208780 MB |
303 | struct snd_soc_dai *dai; |
304 | ||
305 | if (!buf) | |
306 | return -ENOMEM; | |
307 | ||
2b194f9d MB |
308 | list_for_each_entry(dai, &dai_list, list) { |
309 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
310 | if (len >= 0) | |
311 | ret += len; | |
312 | if (ret > PAGE_SIZE) { | |
313 | ret = PAGE_SIZE; | |
314 | break; | |
315 | } | |
316 | } | |
f3208780 | 317 | |
2b194f9d | 318 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
319 | |
320 | kfree(buf); | |
321 | ||
322 | return ret; | |
323 | } | |
324 | ||
325 | static const struct file_operations dai_list_fops = { | |
326 | .read = dai_list_read_file, | |
327 | .llseek = default_llseek,/* read accesses f_pos */ | |
328 | }; | |
329 | ||
19c7ac27 MB |
330 | static ssize_t platform_list_read_file(struct file *file, |
331 | char __user *user_buf, | |
332 | size_t count, loff_t *ppos) | |
333 | { | |
334 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 335 | ssize_t len, ret = 0; |
19c7ac27 MB |
336 | struct snd_soc_platform *platform; |
337 | ||
338 | if (!buf) | |
339 | return -ENOMEM; | |
340 | ||
2b194f9d MB |
341 | list_for_each_entry(platform, &platform_list, list) { |
342 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
343 | platform->name); | |
344 | if (len >= 0) | |
345 | ret += len; | |
346 | if (ret > PAGE_SIZE) { | |
347 | ret = PAGE_SIZE; | |
348 | break; | |
349 | } | |
350 | } | |
19c7ac27 | 351 | |
2b194f9d | 352 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
353 | |
354 | kfree(buf); | |
355 | ||
356 | return ret; | |
357 | } | |
358 | ||
359 | static const struct file_operations platform_list_fops = { | |
360 | .read = platform_list_read_file, | |
361 | .llseek = default_llseek,/* read accesses f_pos */ | |
362 | }; | |
363 | ||
a6052154 JN |
364 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
365 | { | |
366 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 367 | snd_soc_debugfs_root); |
3a45b867 | 368 | if (!card->debugfs_card_root) { |
a6052154 JN |
369 | dev_warn(card->dev, |
370 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
371 | return; |
372 | } | |
373 | ||
374 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
375 | card->debugfs_card_root, | |
376 | &card->pop_time); | |
377 | if (!card->debugfs_pop_time) | |
378 | dev_warn(card->dev, | |
379 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
380 | } |
381 | ||
382 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
383 | { | |
384 | debugfs_remove_recursive(card->debugfs_card_root); | |
385 | } | |
386 | ||
2624d5fa MB |
387 | #else |
388 | ||
389 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
390 | { | |
391 | } | |
392 | ||
393 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
394 | { | |
395 | } | |
b95fccbc AL |
396 | |
397 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
398 | { | |
399 | } | |
400 | ||
401 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
402 | { | |
403 | } | |
2624d5fa MB |
404 | #endif |
405 | ||
db2a4165 FM |
406 | #ifdef CONFIG_SND_SOC_AC97_BUS |
407 | /* unregister ac97 codec */ | |
408 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
409 | { | |
410 | if (codec->ac97->dev.bus) | |
411 | device_unregister(&codec->ac97->dev); | |
412 | return 0; | |
413 | } | |
414 | ||
415 | /* stop no dev release warning */ | |
416 | static void soc_ac97_device_release(struct device *dev){} | |
417 | ||
418 | /* register ac97 codec to bus */ | |
419 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
420 | { | |
421 | int err; | |
422 | ||
423 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 424 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
425 | codec->ac97->dev.release = soc_ac97_device_release; |
426 | ||
bb072bf0 | 427 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 428 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
429 | err = device_register(&codec->ac97->dev); |
430 | if (err < 0) { | |
431 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
432 | codec->ac97->dev.bus = NULL; | |
433 | return err; | |
434 | } | |
435 | return 0; | |
436 | } | |
437 | #endif | |
438 | ||
06f409d7 MB |
439 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
440 | { | |
441 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
442 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
443 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
444 | int ret; |
445 | ||
f0fba2ad LG |
446 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
447 | rtd->dai_link->symmetric_rates) { | |
448 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
449 | rtd->rate); | |
06f409d7 MB |
450 | |
451 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
452 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
453 | rtd->rate, |
454 | rtd->rate); | |
06f409d7 | 455 | if (ret < 0) { |
f0fba2ad | 456 | dev_err(&rtd->dev, |
06f409d7 MB |
457 | "Unable to apply rate symmetry constraint: %d\n", ret); |
458 | return ret; | |
459 | } | |
460 | } | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
db2a4165 FM |
465 | /* |
466 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
467 | * then initialized and any private data can be allocated. This also calls | |
468 | * startup for the cpu DAI, platform, machine and codec DAI. | |
469 | */ | |
470 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
471 | { | |
472 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 473 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
474 | struct snd_soc_platform *platform = rtd->platform; |
475 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
476 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
477 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
478 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
479 | int ret = 0; |
480 | ||
481 | mutex_lock(&pcm_mutex); | |
482 | ||
483 | /* startup the audio subsystem */ | |
f0fba2ad LG |
484 | if (cpu_dai->driver->ops->startup) { |
485 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
486 | if (ret < 0) { |
487 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 488 | cpu_dai->name); |
db2a4165 FM |
489 | goto out; |
490 | } | |
491 | } | |
492 | ||
f0fba2ad LG |
493 | if (platform->driver->ops->open) { |
494 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
495 | if (ret < 0) { |
496 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
497 | goto platform_err; | |
498 | } | |
499 | } | |
500 | ||
f0fba2ad LG |
501 | if (codec_dai->driver->ops->startup) { |
502 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 503 | if (ret < 0) { |
cb666e5b LG |
504 | printk(KERN_ERR "asoc: can't open codec %s\n", |
505 | codec_dai->name); | |
506 | goto codec_dai_err; | |
db2a4165 FM |
507 | } |
508 | } | |
509 | ||
f0fba2ad LG |
510 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
511 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 512 | if (ret < 0) { |
f0fba2ad | 513 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 514 | goto machine_err; |
db2a4165 FM |
515 | } |
516 | } | |
517 | ||
a00f90f9 | 518 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
519 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
520 | runtime->hw.rate_min = | |
f0fba2ad LG |
521 | max(codec_dai_drv->playback.rate_min, |
522 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 523 | runtime->hw.rate_max = |
f0fba2ad LG |
524 | min(codec_dai_drv->playback.rate_max, |
525 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 526 | runtime->hw.channels_min = |
f0fba2ad LG |
527 | max(codec_dai_drv->playback.channels_min, |
528 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 529 | runtime->hw.channels_max = |
f0fba2ad LG |
530 | min(codec_dai_drv->playback.channels_max, |
531 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 532 | runtime->hw.formats = |
f0fba2ad | 533 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 534 | runtime->hw.rates = |
f0fba2ad LG |
535 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
536 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 537 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
538 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
539 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 540 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 541 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
542 | } else { |
543 | runtime->hw.rate_min = | |
f0fba2ad LG |
544 | max(codec_dai_drv->capture.rate_min, |
545 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 546 | runtime->hw.rate_max = |
f0fba2ad LG |
547 | min(codec_dai_drv->capture.rate_max, |
548 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 549 | runtime->hw.channels_min = |
f0fba2ad LG |
550 | max(codec_dai_drv->capture.channels_min, |
551 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 552 | runtime->hw.channels_max = |
f0fba2ad LG |
553 | min(codec_dai_drv->capture.channels_max, |
554 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 555 | runtime->hw.formats = |
f0fba2ad | 556 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 557 | runtime->hw.rates = |
f0fba2ad LG |
558 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
559 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 560 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
561 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
562 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 563 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 564 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
565 | } |
566 | ||
567 | snd_pcm_limit_hw_rates(runtime); | |
568 | if (!runtime->hw.rates) { | |
569 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 570 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 571 | goto config_err; |
db2a4165 FM |
572 | } |
573 | if (!runtime->hw.formats) { | |
574 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 575 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 576 | goto config_err; |
db2a4165 FM |
577 | } |
578 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
579 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 580 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 581 | goto config_err; |
db2a4165 FM |
582 | } |
583 | ||
06f409d7 MB |
584 | /* Symmetry only applies if we've already got an active stream. */ |
585 | if (cpu_dai->active || codec_dai->active) { | |
586 | ret = soc_pcm_apply_symmetry(substream); | |
587 | if (ret != 0) | |
bb1c0478 | 588 | goto config_err; |
06f409d7 MB |
589 | } |
590 | ||
f0fba2ad LG |
591 | pr_debug("asoc: %s <-> %s info:\n", |
592 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
593 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
594 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
595 | runtime->hw.channels_max); | |
596 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
597 | runtime->hw.rate_max); | |
db2a4165 | 598 | |
14dc5734 | 599 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
600 | cpu_dai->playback_active++; |
601 | codec_dai->playback_active++; | |
14dc5734 | 602 | } else { |
f0fba2ad LG |
603 | cpu_dai->capture_active++; |
604 | codec_dai->capture_active++; | |
14dc5734 JB |
605 | } |
606 | cpu_dai->active++; | |
607 | codec_dai->active++; | |
f0fba2ad | 608 | rtd->codec->active++; |
db2a4165 FM |
609 | mutex_unlock(&pcm_mutex); |
610 | return 0; | |
611 | ||
bb1c0478 | 612 | config_err: |
f0fba2ad LG |
613 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
614 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 615 | |
bb1c0478 | 616 | machine_err: |
f0fba2ad LG |
617 | if (codec_dai->driver->ops->shutdown) |
618 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 619 | |
cb666e5b | 620 | codec_dai_err: |
f0fba2ad LG |
621 | if (platform->driver->ops->close) |
622 | platform->driver->ops->close(substream); | |
db2a4165 FM |
623 | |
624 | platform_err: | |
f0fba2ad LG |
625 | if (cpu_dai->driver->ops->shutdown) |
626 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
627 | out: |
628 | mutex_unlock(&pcm_mutex); | |
629 | return ret; | |
630 | } | |
631 | ||
632 | /* | |
3a4fa0a2 | 633 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
634 | * This is to ensure there are no pops or clicks in between any music tracks |
635 | * due to DAPM power cycling. | |
636 | */ | |
4484bb2e | 637 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 638 | { |
f0fba2ad LG |
639 | struct snd_soc_pcm_runtime *rtd = |
640 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
641 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
642 | |
643 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
644 | |
645 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
646 | codec_dai->driver->playback.stream_name, | |
647 | codec_dai->playback_active ? "active" : "inactive", | |
648 | codec_dai->pop_wait ? "yes" : "no"); | |
649 | ||
650 | /* are we waiting on this codec DAI stream */ | |
651 | if (codec_dai->pop_wait == 1) { | |
652 | codec_dai->pop_wait = 0; | |
653 | snd_soc_dapm_stream_event(rtd, | |
654 | codec_dai->driver->playback.stream_name, | |
655 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 656 | } |
f0fba2ad | 657 | |
db2a4165 FM |
658 | mutex_unlock(&pcm_mutex); |
659 | } | |
660 | ||
661 | /* | |
662 | * Called by ALSA when a PCM substream is closed. Private data can be | |
663 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
664 | * shutdown. | |
665 | */ | |
666 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
667 | { | |
668 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
669 | struct snd_soc_platform *platform = rtd->platform; |
670 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
671 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
672 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
673 | |
674 | mutex_lock(&pcm_mutex); | |
675 | ||
14dc5734 | 676 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
677 | cpu_dai->playback_active--; |
678 | codec_dai->playback_active--; | |
14dc5734 | 679 | } else { |
f0fba2ad LG |
680 | cpu_dai->capture_active--; |
681 | codec_dai->capture_active--; | |
db2a4165 | 682 | } |
14dc5734 JB |
683 | |
684 | cpu_dai->active--; | |
685 | codec_dai->active--; | |
db2a4165 FM |
686 | codec->active--; |
687 | ||
6010b2da MB |
688 | /* Muting the DAC suppresses artifacts caused during digital |
689 | * shutdown, for example from stopping clocks. | |
690 | */ | |
691 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
692 | snd_soc_dai_digital_mute(codec_dai, 1); | |
693 | ||
f0fba2ad LG |
694 | if (cpu_dai->driver->ops->shutdown) |
695 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 696 | |
f0fba2ad LG |
697 | if (codec_dai->driver->ops->shutdown) |
698 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 699 | |
f0fba2ad LG |
700 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
701 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 702 | |
f0fba2ad LG |
703 | if (platform->driver->ops->close) |
704 | platform->driver->ops->close(substream); | |
705 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
706 | |
707 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
708 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 709 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
710 | schedule_delayed_work(&rtd->delayed_work, |
711 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
712 | } else { |
713 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
714 | snd_soc_dapm_stream_event(rtd, |
715 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 716 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
717 | } |
718 | ||
719 | mutex_unlock(&pcm_mutex); | |
720 | return 0; | |
721 | } | |
722 | ||
723 | /* | |
724 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
725 | * rate, etc. This function is non atomic and can be called multiple times, | |
726 | * it can refer to the runtime info. | |
727 | */ | |
728 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
729 | { | |
730 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
731 | struct snd_soc_platform *platform = rtd->platform; |
732 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
733 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
734 | int ret = 0; |
735 | ||
736 | mutex_lock(&pcm_mutex); | |
cb666e5b | 737 | |
f0fba2ad LG |
738 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
739 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
740 | if (ret < 0) { |
741 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
742 | goto out; | |
743 | } | |
744 | } | |
745 | ||
f0fba2ad LG |
746 | if (platform->driver->ops->prepare) { |
747 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
748 | if (ret < 0) { |
749 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 750 | goto out; |
a71a468a | 751 | } |
db2a4165 FM |
752 | } |
753 | ||
f0fba2ad LG |
754 | if (codec_dai->driver->ops->prepare) { |
755 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
756 | if (ret < 0) { |
757 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 758 | goto out; |
a71a468a | 759 | } |
db2a4165 FM |
760 | } |
761 | ||
f0fba2ad LG |
762 | if (cpu_dai->driver->ops->prepare) { |
763 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
764 | if (ret < 0) { |
765 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
766 | goto out; | |
767 | } | |
768 | } | |
db2a4165 | 769 | |
d45f6219 MB |
770 | /* cancel any delayed stream shutdown that is pending */ |
771 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
772 | codec_dai->pop_wait) { | |
773 | codec_dai->pop_wait = 0; | |
f0fba2ad | 774 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 775 | } |
db2a4165 | 776 | |
452c5eaa | 777 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
778 | snd_soc_dapm_stream_event(rtd, |
779 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
780 | SND_SOC_DAPM_STREAM_START); |
781 | else | |
f0fba2ad LG |
782 | snd_soc_dapm_stream_event(rtd, |
783 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 784 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 785 | |
452c5eaa | 786 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
787 | |
788 | out: | |
789 | mutex_unlock(&pcm_mutex); | |
790 | return ret; | |
791 | } | |
792 | ||
793 | /* | |
794 | * Called by ALSA when the hardware params are set by application. This | |
795 | * function can also be called multiple times and can allocate buffers | |
796 | * (using snd_pcm_lib_* ). It's non-atomic. | |
797 | */ | |
798 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
799 | struct snd_pcm_hw_params *params) | |
800 | { | |
801 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
802 | struct snd_soc_platform *platform = rtd->platform; |
803 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
804 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
805 | int ret = 0; |
806 | ||
807 | mutex_lock(&pcm_mutex); | |
808 | ||
f0fba2ad LG |
809 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
810 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
811 | if (ret < 0) { |
812 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 813 | goto out; |
cb666e5b | 814 | } |
db2a4165 FM |
815 | } |
816 | ||
f0fba2ad LG |
817 | if (codec_dai->driver->ops->hw_params) { |
818 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
819 | if (ret < 0) { |
820 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
821 | codec_dai->name); |
822 | goto codec_err; | |
db2a4165 FM |
823 | } |
824 | } | |
825 | ||
f0fba2ad LG |
826 | if (cpu_dai->driver->ops->hw_params) { |
827 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 828 | if (ret < 0) { |
3ff3f64b | 829 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 830 | cpu_dai->name); |
db2a4165 FM |
831 | goto interface_err; |
832 | } | |
833 | } | |
834 | ||
f0fba2ad LG |
835 | if (platform->driver->ops->hw_params) { |
836 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 837 | if (ret < 0) { |
3ff3f64b | 838 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
839 | platform->name); |
840 | goto platform_err; | |
841 | } | |
842 | } | |
843 | ||
f0fba2ad | 844 | rtd->rate = params_rate(params); |
06f409d7 | 845 | |
db2a4165 FM |
846 | out: |
847 | mutex_unlock(&pcm_mutex); | |
848 | return ret; | |
849 | ||
db2a4165 | 850 | platform_err: |
f0fba2ad LG |
851 | if (cpu_dai->driver->ops->hw_free) |
852 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
853 | |
854 | interface_err: | |
f0fba2ad LG |
855 | if (codec_dai->driver->ops->hw_free) |
856 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
857 | |
858 | codec_err: | |
f0fba2ad LG |
859 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
860 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
861 | |
862 | mutex_unlock(&pcm_mutex); | |
863 | return ret; | |
864 | } | |
865 | ||
866 | /* | |
a00f90f9 | 867 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
868 | */ |
869 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
870 | { | |
871 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
872 | struct snd_soc_platform *platform = rtd->platform; |
873 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
874 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
875 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
876 | |
877 | mutex_lock(&pcm_mutex); | |
878 | ||
879 | /* apply codec digital mute */ | |
8c6529db LG |
880 | if (!codec->active) |
881 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
882 | |
883 | /* free any machine hw params */ | |
f0fba2ad LG |
884 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
885 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
886 | |
887 | /* free any DMA resources */ | |
f0fba2ad LG |
888 | if (platform->driver->ops->hw_free) |
889 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 890 | |
a00f90f9 | 891 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
892 | if (codec_dai->driver->ops->hw_free) |
893 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 894 | |
f0fba2ad LG |
895 | if (cpu_dai->driver->ops->hw_free) |
896 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
897 | |
898 | mutex_unlock(&pcm_mutex); | |
899 | return 0; | |
900 | } | |
901 | ||
902 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
903 | { | |
904 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
905 | struct snd_soc_platform *platform = rtd->platform; |
906 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
907 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
908 | int ret; |
909 | ||
f0fba2ad LG |
910 | if (codec_dai->driver->ops->trigger) { |
911 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
912 | if (ret < 0) |
913 | return ret; | |
914 | } | |
915 | ||
f0fba2ad LG |
916 | if (platform->driver->ops->trigger) { |
917 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
918 | if (ret < 0) |
919 | return ret; | |
920 | } | |
921 | ||
f0fba2ad LG |
922 | if (cpu_dai->driver->ops->trigger) { |
923 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
924 | if (ret < 0) |
925 | return ret; | |
926 | } | |
927 | return 0; | |
928 | } | |
929 | ||
377b6f62 PU |
930 | /* |
931 | * soc level wrapper for pointer callback | |
258020d0 PU |
932 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
933 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
934 | */ |
935 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
936 | { | |
937 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
938 | struct snd_soc_platform *platform = rtd->platform; |
939 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
940 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 941 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 942 | snd_pcm_uframes_t offset = 0; |
258020d0 | 943 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 944 | |
f0fba2ad LG |
945 | if (platform->driver->ops->pointer) |
946 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 947 | |
f0fba2ad LG |
948 | if (cpu_dai->driver->ops->delay) |
949 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 950 | |
f0fba2ad LG |
951 | if (codec_dai->driver->ops->delay) |
952 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 953 | |
f0fba2ad LG |
954 | if (platform->driver->delay) |
955 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
956 | |
957 | runtime->delay = delay; | |
958 | ||
377b6f62 PU |
959 | return offset; |
960 | } | |
961 | ||
db2a4165 FM |
962 | /* ASoC PCM operations */ |
963 | static struct snd_pcm_ops soc_pcm_ops = { | |
964 | .open = soc_pcm_open, | |
965 | .close = soc_codec_close, | |
966 | .hw_params = soc_pcm_hw_params, | |
967 | .hw_free = soc_pcm_hw_free, | |
968 | .prepare = soc_pcm_prepare, | |
969 | .trigger = soc_pcm_trigger, | |
377b6f62 | 970 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
971 | }; |
972 | ||
6f8ab4ac | 973 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 974 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 975 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 976 | { |
6f8ab4ac | 977 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 978 | struct snd_soc_codec *codec; |
db2a4165 FM |
979 | int i; |
980 | ||
e3509ff0 DM |
981 | /* If the initialization of this soc device failed, there is no codec |
982 | * associated with it. Just bail out in this case. | |
983 | */ | |
f0fba2ad | 984 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
985 | return 0; |
986 | ||
6ed25978 AG |
987 | /* Due to the resume being scheduled into a workqueue we could |
988 | * suspend before that's finished - wait for it to complete. | |
989 | */ | |
f0fba2ad LG |
990 | snd_power_lock(card->snd_card); |
991 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
992 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
993 | |
994 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 995 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 996 | |
a00f90f9 | 997 | /* mute any active DACs */ |
f0fba2ad LG |
998 | for (i = 0; i < card->num_rtd; i++) { |
999 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1000 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1001 | |
f0fba2ad | 1002 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1003 | continue; |
1004 | ||
f0fba2ad LG |
1005 | if (drv->ops->digital_mute && dai->playback_active) |
1006 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1007 | } |
1008 | ||
4ccab3e7 | 1009 | /* suspend all pcms */ |
f0fba2ad LG |
1010 | for (i = 0; i < card->num_rtd; i++) { |
1011 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1012 | continue; |
1013 | ||
f0fba2ad | 1014 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1015 | } |
4ccab3e7 | 1016 | |
87506549 | 1017 | if (card->suspend_pre) |
70b2ac12 | 1018 | card->suspend_pre(card); |
db2a4165 | 1019 | |
f0fba2ad LG |
1020 | for (i = 0; i < card->num_rtd; i++) { |
1021 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1022 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1023 | |
f0fba2ad | 1024 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1025 | continue; |
1026 | ||
f0fba2ad LG |
1027 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1028 | cpu_dai->driver->suspend(cpu_dai); | |
1029 | if (platform->driver->suspend && !platform->suspended) { | |
1030 | platform->driver->suspend(cpu_dai); | |
1031 | platform->suspended = 1; | |
1032 | } | |
db2a4165 FM |
1033 | } |
1034 | ||
1035 | /* close any waiting streams and save state */ | |
f0fba2ad | 1036 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1037 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1038 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1039 | } |
db2a4165 | 1040 | |
f0fba2ad LG |
1041 | for (i = 0; i < card->num_rtd; i++) { |
1042 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1043 | |
f0fba2ad | 1044 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1045 | continue; |
1046 | ||
f0fba2ad LG |
1047 | if (driver->playback.stream_name != NULL) |
1048 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1049 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1050 | |
1051 | if (driver->capture.stream_name != NULL) | |
1052 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1053 | SND_SOC_DAPM_STREAM_SUSPEND); |
1054 | } | |
1055 | ||
f0fba2ad | 1056 | /* suspend all CODECs */ |
2eea392d | 1057 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1058 | /* If there are paths active then the CODEC will be held with |
1059 | * bias _ON and should not be suspended. */ | |
1060 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1061 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1062 | case SND_SOC_BIAS_STANDBY: |
1063 | case SND_SOC_BIAS_OFF: | |
1064 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1065 | codec->suspended = 1; | |
1066 | break; | |
1067 | default: | |
1068 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1069 | break; | |
1070 | } | |
1547aba9 MB |
1071 | } |
1072 | } | |
db2a4165 | 1073 | |
f0fba2ad LG |
1074 | for (i = 0; i < card->num_rtd; i++) { |
1075 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1076 | |
f0fba2ad | 1077 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1078 | continue; |
1079 | ||
f0fba2ad LG |
1080 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1081 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1082 | } |
1083 | ||
87506549 | 1084 | if (card->suspend_post) |
70b2ac12 | 1085 | card->suspend_post(card); |
db2a4165 FM |
1086 | |
1087 | return 0; | |
1088 | } | |
6f8ab4ac | 1089 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 1090 | |
6ed25978 AG |
1091 | /* deferred resume work, so resume can complete before we finished |
1092 | * setting our codec back up, which can be very slow on I2C | |
1093 | */ | |
1094 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1095 | { |
f0fba2ad LG |
1096 | struct snd_soc_card *card = |
1097 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 1098 | struct snd_soc_codec *codec; |
db2a4165 FM |
1099 | int i; |
1100 | ||
6ed25978 AG |
1101 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1102 | * so userspace apps are blocked from touching us | |
1103 | */ | |
1104 | ||
f0fba2ad | 1105 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1106 | |
9949788b | 1107 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1108 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1109 | |
87506549 | 1110 | if (card->resume_pre) |
70b2ac12 | 1111 | card->resume_pre(card); |
db2a4165 | 1112 | |
f0fba2ad LG |
1113 | /* resume AC97 DAIs */ |
1114 | for (i = 0; i < card->num_rtd; i++) { | |
1115 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1116 | |
f0fba2ad | 1117 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1118 | continue; |
1119 | ||
f0fba2ad LG |
1120 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1121 | cpu_dai->driver->resume(cpu_dai); | |
1122 | } | |
1123 | ||
2eea392d | 1124 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1125 | /* If the CODEC was idle over suspend then it will have been |
1126 | * left with bias OFF or STANDBY and suspended so we must now | |
1127 | * resume. Otherwise the suspend was suppressed. | |
1128 | */ | |
1129 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1130 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1131 | case SND_SOC_BIAS_STANDBY: |
1132 | case SND_SOC_BIAS_OFF: | |
1133 | codec->driver->resume(codec); | |
1134 | codec->suspended = 0; | |
1135 | break; | |
1136 | default: | |
1137 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1138 | break; | |
1139 | } | |
1547aba9 MB |
1140 | } |
1141 | } | |
db2a4165 | 1142 | |
f0fba2ad LG |
1143 | for (i = 0; i < card->num_rtd; i++) { |
1144 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1145 | |
f0fba2ad | 1146 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1147 | continue; |
1148 | ||
f0fba2ad LG |
1149 | if (driver->playback.stream_name != NULL) |
1150 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1151 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1152 | |
1153 | if (driver->capture.stream_name != NULL) | |
1154 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1155 | SND_SOC_DAPM_STREAM_RESUME); |
1156 | } | |
1157 | ||
3ff3f64b | 1158 | /* unmute any active DACs */ |
f0fba2ad LG |
1159 | for (i = 0; i < card->num_rtd; i++) { |
1160 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1161 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1162 | |
f0fba2ad | 1163 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1164 | continue; |
1165 | ||
f0fba2ad LG |
1166 | if (drv->ops->digital_mute && dai->playback_active) |
1167 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1168 | } |
1169 | ||
f0fba2ad LG |
1170 | for (i = 0; i < card->num_rtd; i++) { |
1171 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1172 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1173 | |
f0fba2ad | 1174 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1175 | continue; |
1176 | ||
f0fba2ad LG |
1177 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1178 | cpu_dai->driver->resume(cpu_dai); | |
1179 | if (platform->driver->resume && platform->suspended) { | |
1180 | platform->driver->resume(cpu_dai); | |
1181 | platform->suspended = 0; | |
1182 | } | |
db2a4165 FM |
1183 | } |
1184 | ||
87506549 | 1185 | if (card->resume_post) |
70b2ac12 | 1186 | card->resume_post(card); |
db2a4165 | 1187 | |
f0fba2ad | 1188 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1189 | |
1190 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1191 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1192 | } |
1193 | ||
1194 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 1195 | int snd_soc_resume(struct device *dev) |
6ed25978 | 1196 | { |
6f8ab4ac | 1197 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1198 | int i; |
b9dd94a8 | 1199 | |
64ab9baa MB |
1200 | /* AC97 devices might have other drivers hanging off them so |
1201 | * need to resume immediately. Other drivers don't have that | |
1202 | * problem and may take a substantial amount of time to resume | |
1203 | * due to I/O costs and anti-pop so handle them out of line. | |
1204 | */ | |
f0fba2ad LG |
1205 | for (i = 0; i < card->num_rtd; i++) { |
1206 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1207 | if (cpu_dai->driver->ac97_control) { | |
1208 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1209 | soc_resume_deferred(&card->deferred_resume_work); | |
1210 | } else { | |
1211 | dev_dbg(dev, "Scheduling resume work\n"); | |
1212 | if (!schedule_work(&card->deferred_resume_work)) | |
1213 | dev_err(dev, "resume work item may be lost\n"); | |
1214 | } | |
64ab9baa | 1215 | } |
6ed25978 | 1216 | |
db2a4165 FM |
1217 | return 0; |
1218 | } | |
6f8ab4ac | 1219 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 1220 | #else |
6f8ab4ac MB |
1221 | #define snd_soc_suspend NULL |
1222 | #define snd_soc_resume NULL | |
db2a4165 FM |
1223 | #endif |
1224 | ||
02a06d30 BS |
1225 | static struct snd_soc_dai_ops null_dai_ops = { |
1226 | }; | |
1227 | ||
f0fba2ad | 1228 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1229 | { |
f0fba2ad LG |
1230 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1231 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1232 | struct snd_soc_codec *codec; |
435c5e25 | 1233 | struct snd_soc_platform *platform; |
f0fba2ad | 1234 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1235 | |
f0fba2ad LG |
1236 | if (rtd->complete) |
1237 | return 1; | |
1238 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1239 | |
f0fba2ad LG |
1240 | /* do we already have the CPU DAI for this link ? */ |
1241 | if (rtd->cpu_dai) { | |
1242 | goto find_codec; | |
1243 | } | |
1244 | /* no, then find CPU DAI from registered DAIs*/ | |
1245 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1246 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1247 | ||
1248 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1249 | return -ENODEV; | |
1250 | ||
1251 | rtd->cpu_dai = cpu_dai; | |
1252 | goto find_codec; | |
435c5e25 | 1253 | } |
435c5e25 | 1254 | } |
f0fba2ad LG |
1255 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1256 | dai_link->cpu_dai_name); | |
6308419a | 1257 | |
f0fba2ad LG |
1258 | find_codec: |
1259 | /* do we already have the CODEC for this link ? */ | |
1260 | if (rtd->codec) { | |
1261 | goto find_platform; | |
1262 | } | |
1263 | ||
1264 | /* no, then find CODEC from registered CODECs*/ | |
1265 | list_for_each_entry(codec, &codec_list, list) { | |
1266 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1267 | rtd->codec = codec; | |
1268 | ||
f0fba2ad LG |
1269 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1270 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1271 | if (codec->dev == codec_dai->dev && | |
1272 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1273 | rtd->codec_dai = codec_dai; | |
1274 | goto find_platform; | |
1275 | } | |
435c5e25 | 1276 | } |
f0fba2ad LG |
1277 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1278 | dai_link->codec_dai_name); | |
1279 | ||
1280 | goto find_platform; | |
435c5e25 | 1281 | } |
f0fba2ad LG |
1282 | } |
1283 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1284 | dai_link->codec_name); | |
6b05eda6 | 1285 | |
f0fba2ad LG |
1286 | find_platform: |
1287 | /* do we already have the CODEC DAI for this link ? */ | |
1288 | if (rtd->platform) { | |
1289 | goto out; | |
c5af3a2e | 1290 | } |
f0fba2ad LG |
1291 | /* no, then find CPU DAI from registered DAIs*/ |
1292 | list_for_each_entry(platform, &platform_list, list) { | |
1293 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
f0fba2ad LG |
1294 | rtd->platform = platform; |
1295 | goto out; | |
1296 | } | |
02a06d30 BS |
1297 | } |
1298 | ||
f0fba2ad LG |
1299 | dev_dbg(card->dev, "platform %s not registered\n", |
1300 | dai_link->platform_name); | |
1301 | return 0; | |
1302 | ||
1303 | out: | |
1304 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1305 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1306 | rtd->complete = 1; | |
1307 | card->num_rtd++; | |
1308 | } | |
1309 | return 1; | |
1310 | } | |
1311 | ||
589c3563 JN |
1312 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1313 | { | |
1314 | int err; | |
1315 | ||
1316 | if (codec->driver->remove) { | |
1317 | err = codec->driver->remove(codec); | |
1318 | if (err < 0) | |
1319 | dev_err(codec->dev, | |
1320 | "asoc: failed to remove %s: %d\n", | |
1321 | codec->name, err); | |
1322 | } | |
1323 | ||
1324 | /* Make sure all DAPM widgets are freed */ | |
1325 | snd_soc_dapm_free(&codec->dapm); | |
1326 | ||
1327 | soc_cleanup_codec_debugfs(codec); | |
1328 | codec->probed = 0; | |
1329 | list_del(&codec->card_list); | |
1330 | module_put(codec->dev->driver->owner); | |
1331 | } | |
1332 | ||
f0fba2ad LG |
1333 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1334 | { | |
1335 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1336 | struct snd_soc_codec *codec = rtd->codec; | |
1337 | struct snd_soc_platform *platform = rtd->platform; | |
1338 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1339 | int err; | |
1340 | ||
1341 | /* unregister the rtd device */ | |
1342 | if (rtd->dev_registered) { | |
1343 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1344 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1345 | device_unregister(&rtd->dev); |
1346 | rtd->dev_registered = 0; | |
1347 | } | |
1348 | ||
1349 | /* remove the CODEC DAI */ | |
1350 | if (codec_dai && codec_dai->probed) { | |
1351 | if (codec_dai->driver->remove) { | |
1352 | err = codec_dai->driver->remove(codec_dai); | |
1353 | if (err < 0) | |
1354 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1355 | } |
f0fba2ad LG |
1356 | codec_dai->probed = 0; |
1357 | list_del(&codec_dai->card_list); | |
1358 | } | |
6b05eda6 | 1359 | |
f0fba2ad LG |
1360 | /* remove the platform */ |
1361 | if (platform && platform->probed) { | |
1362 | if (platform->driver->remove) { | |
1363 | err = platform->driver->remove(platform); | |
1364 | if (err < 0) | |
1365 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1366 | } | |
1367 | platform->probed = 0; | |
1368 | list_del(&platform->card_list); | |
1369 | module_put(platform->dev->driver->owner); | |
1370 | } | |
435c5e25 | 1371 | |
f0fba2ad | 1372 | /* remove the CODEC */ |
589c3563 JN |
1373 | if (codec && codec->probed) |
1374 | soc_remove_codec(codec); | |
db2a4165 | 1375 | |
f0fba2ad LG |
1376 | /* remove the cpu_dai */ |
1377 | if (cpu_dai && cpu_dai->probed) { | |
1378 | if (cpu_dai->driver->remove) { | |
1379 | err = cpu_dai->driver->remove(cpu_dai); | |
1380 | if (err < 0) | |
1381 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1382 | } |
f0fba2ad LG |
1383 | cpu_dai->probed = 0; |
1384 | list_del(&cpu_dai->card_list); | |
1385 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1386 | } |
f0fba2ad | 1387 | } |
db2a4165 | 1388 | |
ead9b919 JN |
1389 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1390 | struct snd_soc_codec *codec) | |
1391 | { | |
1392 | int i; | |
1393 | ||
ff819b83 | 1394 | if (card->codec_conf == NULL) |
ead9b919 JN |
1395 | return; |
1396 | ||
ff819b83 DP |
1397 | for (i = 0; i < card->num_configs; i++) { |
1398 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1399 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1400 | codec->name_prefix = map->name_prefix; | |
1401 | break; | |
1402 | } | |
1403 | } | |
1404 | } | |
1405 | ||
589c3563 JN |
1406 | static int soc_probe_codec(struct snd_soc_card *card, |
1407 | struct snd_soc_codec *codec) | |
1408 | { | |
1409 | int ret = 0; | |
1410 | ||
1411 | codec->card = card; | |
1412 | codec->dapm.card = card; | |
1413 | soc_set_name_prefix(card, codec); | |
1414 | ||
70d29331 JN |
1415 | if (!try_module_get(codec->dev->driver->owner)) |
1416 | return -ENODEV; | |
1417 | ||
589c3563 JN |
1418 | if (codec->driver->probe) { |
1419 | ret = codec->driver->probe(codec); | |
1420 | if (ret < 0) { | |
1421 | dev_err(codec->dev, | |
1422 | "asoc: failed to probe CODEC %s: %d\n", | |
1423 | codec->name, ret); | |
70d29331 | 1424 | goto err_probe; |
589c3563 JN |
1425 | } |
1426 | } | |
1427 | ||
1428 | soc_init_codec_debugfs(codec); | |
1429 | ||
1430 | /* mark codec as probed and add to card codec list */ | |
1431 | codec->probed = 1; | |
1432 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1433 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1434 | |
70d29331 JN |
1435 | return 0; |
1436 | ||
1437 | err_probe: | |
1438 | module_put(codec->dev->driver->owner); | |
1439 | ||
589c3563 JN |
1440 | return ret; |
1441 | } | |
1442 | ||
f0fba2ad LG |
1443 | static void rtd_release(struct device *dev) {} |
1444 | ||
589c3563 JN |
1445 | static int soc_post_component_init(struct snd_soc_card *card, |
1446 | struct snd_soc_codec *codec, | |
1447 | int num, int dailess) | |
1448 | { | |
1449 | struct snd_soc_dai_link *dai_link = NULL; | |
1450 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1451 | struct snd_soc_pcm_runtime *rtd; | |
1452 | const char *temp, *name; | |
1453 | int ret = 0; | |
1454 | ||
1455 | if (!dailess) { | |
1456 | dai_link = &card->dai_link[num]; | |
1457 | rtd = &card->rtd[num]; | |
1458 | name = dai_link->name; | |
1459 | } else { | |
1460 | aux_dev = &card->aux_dev[num]; | |
1461 | rtd = &card->rtd_aux[num]; | |
1462 | name = aux_dev->name; | |
1463 | } | |
1464 | ||
1465 | /* machine controls, routes and widgets are not prefixed */ | |
1466 | temp = codec->name_prefix; | |
1467 | codec->name_prefix = NULL; | |
1468 | ||
1469 | /* do machine specific initialization */ | |
1470 | if (!dailess && dai_link->init) | |
1471 | ret = dai_link->init(rtd); | |
1472 | else if (dailess && aux_dev->init) | |
1473 | ret = aux_dev->init(&codec->dapm); | |
1474 | if (ret < 0) { | |
1475 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1476 | return ret; | |
1477 | } | |
1478 | codec->name_prefix = temp; | |
1479 | ||
1480 | /* Make sure all DAPM widgets are instantiated */ | |
1481 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1482 | |
1483 | /* register the rtd device */ | |
1484 | rtd->codec = codec; | |
1485 | rtd->card = card; | |
1486 | rtd->dev.parent = card->dev; | |
1487 | rtd->dev.release = rtd_release; | |
1488 | rtd->dev.init_name = name; | |
1489 | ret = device_register(&rtd->dev); | |
1490 | if (ret < 0) { | |
1491 | dev_err(card->dev, | |
1492 | "asoc: failed to register runtime device: %d\n", ret); | |
1493 | return ret; | |
1494 | } | |
1495 | rtd->dev_registered = 1; | |
1496 | ||
1497 | /* add DAPM sysfs entries for this codec */ | |
1498 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1499 | if (ret < 0) | |
1500 | dev_err(codec->dev, | |
1501 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1502 | ret); | |
1503 | ||
1504 | /* add codec sysfs entries */ | |
1505 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1506 | if (ret < 0) | |
1507 | dev_err(codec->dev, | |
1508 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1509 | ||
1510 | return 0; | |
1511 | } | |
1512 | ||
f0fba2ad LG |
1513 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1514 | { | |
1515 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1516 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1517 | struct snd_soc_codec *codec = rtd->codec; | |
1518 | struct snd_soc_platform *platform = rtd->platform; | |
1519 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1520 | int ret; | |
1521 | ||
1522 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1523 | ||
1524 | /* config components */ | |
1525 | codec_dai->codec = codec; | |
f0fba2ad | 1526 | cpu_dai->platform = platform; |
f0fba2ad LG |
1527 | codec_dai->card = card; |
1528 | cpu_dai->card = card; | |
1529 | ||
1530 | /* set default power off timeout */ | |
1531 | rtd->pmdown_time = pmdown_time; | |
1532 | ||
1533 | /* probe the cpu_dai */ | |
1534 | if (!cpu_dai->probed) { | |
1535 | if (cpu_dai->driver->probe) { | |
1536 | ret = cpu_dai->driver->probe(cpu_dai); | |
1537 | if (ret < 0) { | |
1538 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1539 | cpu_dai->name); | |
1540 | return ret; | |
1541 | } | |
1542 | } | |
1543 | cpu_dai->probed = 1; | |
1544 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1545 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1546 | } |
1547 | ||
f0fba2ad LG |
1548 | /* probe the CODEC */ |
1549 | if (!codec->probed) { | |
589c3563 JN |
1550 | ret = soc_probe_codec(card, codec); |
1551 | if (ret < 0) | |
1552 | return ret; | |
db2a4165 FM |
1553 | } |
1554 | ||
f0fba2ad LG |
1555 | /* probe the platform */ |
1556 | if (!platform->probed) { | |
70d29331 JN |
1557 | if (!try_module_get(platform->dev->driver->owner)) |
1558 | return -ENODEV; | |
1559 | ||
f0fba2ad LG |
1560 | if (platform->driver->probe) { |
1561 | ret = platform->driver->probe(platform); | |
1562 | if (ret < 0) { | |
1563 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1564 | platform->name); | |
70d29331 | 1565 | module_put(platform->dev->driver->owner); |
f0fba2ad LG |
1566 | return ret; |
1567 | } | |
1568 | } | |
1569 | /* mark platform as probed and add to card platform list */ | |
1570 | platform->probed = 1; | |
1571 | list_add(&platform->card_list, &card->platform_dev_list); | |
1572 | } | |
6ed25978 | 1573 | |
f0fba2ad LG |
1574 | /* probe the CODEC DAI */ |
1575 | if (!codec_dai->probed) { | |
1576 | if (codec_dai->driver->probe) { | |
1577 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1578 | if (ret < 0) { |
f0fba2ad LG |
1579 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1580 | codec_dai->name); | |
1581 | return ret; | |
fe3e78e0 MB |
1582 | } |
1583 | } | |
f0fba2ad LG |
1584 | |
1585 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1586 | codec_dai->probed = 1; | |
1587 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1588 | } |
1589 | ||
f0fba2ad LG |
1590 | /* DAPM dai link stream work */ |
1591 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1592 | ||
589c3563 JN |
1593 | ret = soc_post_component_init(card, codec, num, 0); |
1594 | if (ret) | |
f0fba2ad | 1595 | return ret; |
fe3e78e0 | 1596 | |
f0fba2ad LG |
1597 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1598 | if (ret < 0) | |
1599 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1600 | ||
f0fba2ad LG |
1601 | /* create the pcm */ |
1602 | ret = soc_new_pcm(rtd, num); | |
1603 | if (ret < 0) { | |
1604 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1605 | return ret; | |
1606 | } | |
1607 | ||
1608 | /* add platform data for AC97 devices */ | |
1609 | if (rtd->codec_dai->driver->ac97_control) | |
1610 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1611 | ||
1612 | return 0; | |
1613 | } | |
1614 | ||
fe3e78e0 | 1615 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1616 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1617 | { | |
1618 | int ret; | |
1619 | ||
fe3e78e0 MB |
1620 | /* Only instantiate AC97 if not already done by the adaptor |
1621 | * for the generic AC97 subsystem. | |
1622 | */ | |
f0fba2ad | 1623 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1624 | /* |
1625 | * It is possible that the AC97 device is already registered to | |
1626 | * the device subsystem. This happens when the device is created | |
1627 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1628 | * is the generic AC97 glue but others migh emerge. | |
1629 | * | |
1630 | * In those cases we don't try to register the device again. | |
1631 | */ | |
1632 | if (!rtd->codec->ac97_created) | |
1633 | return 0; | |
f0fba2ad LG |
1634 | |
1635 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1636 | if (ret < 0) { |
1637 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1638 | return ret; |
fe3e78e0 | 1639 | } |
f0fba2ad LG |
1640 | |
1641 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1642 | } |
f0fba2ad LG |
1643 | return 0; |
1644 | } | |
1645 | ||
1646 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1647 | { | |
1648 | if (codec->ac97_registered) { | |
1649 | soc_ac97_dev_unregister(codec); | |
1650 | codec->ac97_registered = 0; | |
1651 | } | |
1652 | } | |
fe3e78e0 MB |
1653 | #endif |
1654 | ||
2eea392d JN |
1655 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1656 | { | |
1657 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1658 | struct snd_soc_codec *codec; |
676ad98a | 1659 | int ret = -ENODEV; |
2eea392d JN |
1660 | |
1661 | /* find CODEC from registered CODECs*/ | |
1662 | list_for_each_entry(codec, &codec_list, list) { | |
1663 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1664 | if (codec->probed) { | |
1665 | dev_err(codec->dev, | |
1666 | "asoc: codec already probed"); | |
1667 | ret = -EBUSY; | |
1668 | goto out; | |
1669 | } | |
676ad98a | 1670 | goto found; |
2eea392d JN |
1671 | } |
1672 | } | |
676ad98a JN |
1673 | /* codec not found */ |
1674 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1675 | goto out; | |
2eea392d | 1676 | |
676ad98a | 1677 | found: |
589c3563 | 1678 | ret = soc_probe_codec(card, codec); |
2eea392d | 1679 | if (ret < 0) |
589c3563 | 1680 | return ret; |
2eea392d | 1681 | |
589c3563 | 1682 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1683 | |
1684 | out: | |
1685 | return ret; | |
1686 | } | |
1687 | ||
1688 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1689 | { | |
1690 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1691 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1692 | |
1693 | /* unregister the rtd device */ | |
1694 | if (rtd->dev_registered) { | |
589c3563 | 1695 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1696 | device_unregister(&rtd->dev); |
1697 | rtd->dev_registered = 0; | |
1698 | } | |
1699 | ||
589c3563 JN |
1700 | if (codec && codec->probed) |
1701 | soc_remove_codec(codec); | |
2eea392d JN |
1702 | } |
1703 | ||
fdf0f54d DP |
1704 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1705 | enum snd_soc_compress_type compress_type) | |
1706 | { | |
1707 | int ret; | |
1708 | ||
1709 | if (codec->cache_init) | |
1710 | return 0; | |
1711 | ||
1712 | /* override the compress_type if necessary */ | |
1713 | if (compress_type && codec->compress_type != compress_type) | |
1714 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1715 | ret = snd_soc_cache_init(codec); |
1716 | if (ret < 0) { | |
1717 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1718 | ret); | |
1719 | return ret; | |
1720 | } | |
1721 | codec->cache_init = 1; | |
1722 | return 0; | |
1723 | } | |
1724 | ||
f0fba2ad LG |
1725 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1726 | { | |
fdf0f54d DP |
1727 | struct snd_soc_codec *codec; |
1728 | struct snd_soc_codec_conf *codec_conf; | |
1729 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1730 | int ret, i; |
fe3e78e0 | 1731 | |
f0fba2ad | 1732 | mutex_lock(&card->mutex); |
dbe21408 | 1733 | |
f0fba2ad LG |
1734 | if (card->instantiated) { |
1735 | mutex_unlock(&card->mutex); | |
1736 | return; | |
1737 | } | |
fe3e78e0 | 1738 | |
f0fba2ad LG |
1739 | /* bind DAIs */ |
1740 | for (i = 0; i < card->num_links; i++) | |
1741 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1742 | |
f0fba2ad LG |
1743 | /* bind completed ? */ |
1744 | if (card->num_rtd != card->num_links) { | |
1745 | mutex_unlock(&card->mutex); | |
1746 | return; | |
1747 | } | |
435c5e25 | 1748 | |
fdf0f54d DP |
1749 | /* initialize the register cache for each available codec */ |
1750 | list_for_each_entry(codec, &codec_list, list) { | |
1751 | if (codec->cache_init) | |
1752 | continue; | |
861f2faf DP |
1753 | /* by default we don't override the compress_type */ |
1754 | compress_type = 0; | |
fdf0f54d DP |
1755 | /* check to see if we need to override the compress_type */ |
1756 | for (i = 0; i < card->num_configs; ++i) { | |
1757 | codec_conf = &card->codec_conf[i]; | |
1758 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1759 | compress_type = codec_conf->compress_type; | |
1760 | if (compress_type && compress_type | |
1761 | != codec->compress_type) | |
1762 | break; | |
1763 | } | |
1764 | } | |
fdf0f54d DP |
1765 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1766 | if (ret < 0) { | |
1767 | mutex_unlock(&card->mutex); | |
1768 | return; | |
1769 | } | |
1770 | } | |
1771 | ||
f0fba2ad LG |
1772 | /* card bind complete so register a sound card */ |
1773 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1774 | card->owner, 0, &card->snd_card); | |
1775 | if (ret < 0) { | |
1776 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1777 | card->name); | |
1778 | mutex_unlock(&card->mutex); | |
1779 | return; | |
1780 | } | |
1781 | card->snd_card->dev = card->dev; | |
1782 | ||
1783 | #ifdef CONFIG_PM | |
1784 | /* deferred resume work */ | |
1785 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1786 | #endif | |
db2a4165 | 1787 | |
f0fba2ad LG |
1788 | /* initialise the sound card only once */ |
1789 | if (card->probe) { | |
e7361ec4 | 1790 | ret = card->probe(card); |
f0fba2ad LG |
1791 | if (ret < 0) |
1792 | goto card_probe_error; | |
1793 | } | |
fe3e78e0 | 1794 | |
f0fba2ad LG |
1795 | for (i = 0; i < card->num_links; i++) { |
1796 | ret = soc_probe_dai_link(card, i); | |
1797 | if (ret < 0) { | |
321de0d0 MB |
1798 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1799 | card->name, ret); | |
f0fba2ad LG |
1800 | goto probe_dai_err; |
1801 | } | |
1802 | } | |
db2a4165 | 1803 | |
2eea392d JN |
1804 | for (i = 0; i < card->num_aux_devs; i++) { |
1805 | ret = soc_probe_aux_dev(card, i); | |
1806 | if (ret < 0) { | |
1807 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1808 | card->name, ret); | |
1809 | goto probe_aux_dev_err; | |
1810 | } | |
1811 | } | |
1812 | ||
f0fba2ad LG |
1813 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1814 | "%s", card->name); | |
1815 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1816 | "%s", card->name); | |
1817 | ||
1818 | ret = snd_card_register(card->snd_card); | |
1819 | if (ret < 0) { | |
1820 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1821 | goto probe_aux_dev_err; |
db2a4165 FM |
1822 | } |
1823 | ||
f0fba2ad LG |
1824 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1825 | /* register any AC97 codecs */ | |
1826 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1827 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1828 | if (ret < 0) { | |
1829 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1830 | while (--i >= 0) | |
7d8316df | 1831 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1832 | goto probe_aux_dev_err; |
f0fba2ad | 1833 | } |
6b3ed785 | 1834 | } |
f0fba2ad LG |
1835 | #endif |
1836 | ||
1837 | card->instantiated = 1; | |
1838 | mutex_unlock(&card->mutex); | |
1839 | return; | |
1840 | ||
2eea392d JN |
1841 | probe_aux_dev_err: |
1842 | for (i = 0; i < card->num_aux_devs; i++) | |
1843 | soc_remove_aux_dev(card, i); | |
1844 | ||
f0fba2ad LG |
1845 | probe_dai_err: |
1846 | for (i = 0; i < card->num_links; i++) | |
1847 | soc_remove_dai_link(card, i); | |
1848 | ||
1849 | card_probe_error: | |
87506549 | 1850 | if (card->remove) |
e7361ec4 | 1851 | card->remove(card); |
f0fba2ad LG |
1852 | |
1853 | snd_card_free(card->snd_card); | |
1854 | ||
1855 | mutex_unlock(&card->mutex); | |
435c5e25 | 1856 | } |
db2a4165 | 1857 | |
435c5e25 | 1858 | /* |
421f91d2 | 1859 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1860 | * client_mutex. |
1861 | */ | |
1862 | static void snd_soc_instantiate_cards(void) | |
1863 | { | |
1864 | struct snd_soc_card *card; | |
1865 | list_for_each_entry(card, &card_list, list) | |
1866 | snd_soc_instantiate_card(card); | |
1867 | } | |
1868 | ||
1869 | /* probes a new socdev */ | |
1870 | static int soc_probe(struct platform_device *pdev) | |
1871 | { | |
f0fba2ad | 1872 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1873 | int ret = 0; |
435c5e25 | 1874 | |
70a7ca34 VK |
1875 | /* |
1876 | * no card, so machine driver should be registering card | |
1877 | * we should not be here in that case so ret error | |
1878 | */ | |
1879 | if (!card) | |
1880 | return -EINVAL; | |
1881 | ||
435c5e25 MB |
1882 | /* Bodge while we unpick instantiation */ |
1883 | card->dev = &pdev->dev; | |
4e10bda0 | 1884 | snd_soc_initialize_card_lists(card); |
f0fba2ad | 1885 | |
435c5e25 MB |
1886 | ret = snd_soc_register_card(card); |
1887 | if (ret != 0) { | |
1888 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1889 | return ret; | |
1890 | } | |
1891 | ||
1892 | return 0; | |
db2a4165 FM |
1893 | } |
1894 | ||
b0e26485 | 1895 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1896 | { |
1897 | int i; | |
db2a4165 | 1898 | |
b0e26485 VK |
1899 | /* make sure any delayed work runs */ |
1900 | for (i = 0; i < card->num_rtd; i++) { | |
1901 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1902 | flush_delayed_work_sync(&rtd->delayed_work); | |
1903 | } | |
914dc182 | 1904 | |
b0e26485 VK |
1905 | /* remove auxiliary devices */ |
1906 | for (i = 0; i < card->num_aux_devs; i++) | |
1907 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1908 | |
b0e26485 VK |
1909 | /* remove and free each DAI */ |
1910 | for (i = 0; i < card->num_rtd; i++) | |
1911 | soc_remove_dai_link(card, i); | |
2eea392d | 1912 | |
b0e26485 | 1913 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1914 | |
b0e26485 VK |
1915 | /* remove the card */ |
1916 | if (card->remove) | |
e7361ec4 | 1917 | card->remove(card); |
a6052154 | 1918 | |
b0e26485 VK |
1919 | kfree(card->rtd); |
1920 | snd_card_free(card->snd_card); | |
1921 | return 0; | |
1922 | ||
1923 | } | |
1924 | ||
1925 | /* removes a socdev */ | |
1926 | static int soc_remove(struct platform_device *pdev) | |
1927 | { | |
1928 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1929 | |
c5af3a2e | 1930 | snd_soc_unregister_card(card); |
db2a4165 FM |
1931 | return 0; |
1932 | } | |
1933 | ||
6f8ab4ac | 1934 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1935 | { |
6f8ab4ac | 1936 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1937 | int i; |
51737470 MB |
1938 | |
1939 | if (!card->instantiated) | |
416356fc | 1940 | return 0; |
51737470 MB |
1941 | |
1942 | /* Flush out pmdown_time work - we actually do want to run it | |
1943 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1944 | for (i = 0; i < card->num_rtd; i++) { |
1945 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1946 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1947 | } |
51737470 | 1948 | |
f0fba2ad | 1949 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1950 | |
1951 | return 0; | |
51737470 | 1952 | } |
6f8ab4ac | 1953 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1954 | |
6f8ab4ac MB |
1955 | const struct dev_pm_ops snd_soc_pm_ops = { |
1956 | .suspend = snd_soc_suspend, | |
1957 | .resume = snd_soc_resume, | |
1958 | .poweroff = snd_soc_poweroff, | |
416356fc MB |
1959 | }; |
1960 | ||
db2a4165 FM |
1961 | /* ASoC platform driver */ |
1962 | static struct platform_driver soc_driver = { | |
1963 | .driver = { | |
1964 | .name = "soc-audio", | |
8b45a209 | 1965 | .owner = THIS_MODULE, |
6f8ab4ac | 1966 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1967 | }, |
1968 | .probe = soc_probe, | |
1969 | .remove = soc_remove, | |
db2a4165 FM |
1970 | }; |
1971 | ||
1972 | /* create a new pcm */ | |
f0fba2ad LG |
1973 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1974 | { | |
1975 | struct snd_soc_codec *codec = rtd->codec; | |
1976 | struct snd_soc_platform *platform = rtd->platform; | |
1977 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1978 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1979 | struct snd_pcm *pcm; |
1980 | char new_name[64]; | |
1981 | int ret = 0, playback = 0, capture = 0; | |
1982 | ||
db2a4165 | 1983 | /* check client and interface hw capabilities */ |
40ca1142 | 1984 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1985 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1986 | |
f0fba2ad | 1987 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1988 | playback = 1; |
f0fba2ad | 1989 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1990 | capture = 1; |
1991 | ||
f0fba2ad LG |
1992 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1993 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1994 | num, playback, capture, &pcm); | |
db2a4165 | 1995 | if (ret < 0) { |
f0fba2ad | 1996 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1997 | return ret; |
1998 | } | |
1999 | ||
f0fba2ad | 2000 | rtd->pcm = pcm; |
db2a4165 | 2001 | pcm->private_data = rtd; |
f0fba2ad LG |
2002 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
2003 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2004 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2005 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2006 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2007 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2008 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
2009 | |
2010 | if (playback) | |
2011 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2012 | ||
2013 | if (capture) | |
2014 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2015 | ||
f0fba2ad | 2016 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
2017 | if (ret < 0) { |
2018 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
2019 | return ret; |
2020 | } | |
2021 | ||
f0fba2ad | 2022 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2023 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2024 | cpu_dai->name); | |
2025 | return ret; | |
2026 | } | |
2027 | ||
096e49d5 MB |
2028 | /** |
2029 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2030 | * | |
2031 | * @codec: CODEC to query. | |
2032 | * @reg: Register to query. | |
2033 | * | |
2034 | * Boolean function indiciating if a CODEC register is volatile. | |
2035 | */ | |
181e055e MB |
2036 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
2037 | unsigned int reg) | |
096e49d5 | 2038 | { |
1500b7b5 DP |
2039 | if (codec->volatile_register) |
2040 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
2041 | else |
2042 | return 0; | |
2043 | } | |
2044 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2045 | ||
db2a4165 FM |
2046 | /** |
2047 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2048 | * @codec: audio codec | |
2049 | * @ops: AC97 bus operations | |
2050 | * @num: AC97 codec number | |
2051 | * | |
2052 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2053 | */ | |
2054 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2055 | struct snd_ac97_bus_ops *ops, int num) | |
2056 | { | |
2057 | mutex_lock(&codec->mutex); | |
2058 | ||
2059 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2060 | if (codec->ac97 == NULL) { | |
2061 | mutex_unlock(&codec->mutex); | |
2062 | return -ENOMEM; | |
2063 | } | |
2064 | ||
2065 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2066 | if (codec->ac97->bus == NULL) { | |
2067 | kfree(codec->ac97); | |
2068 | codec->ac97 = NULL; | |
2069 | mutex_unlock(&codec->mutex); | |
2070 | return -ENOMEM; | |
2071 | } | |
2072 | ||
2073 | codec->ac97->bus->ops = ops; | |
2074 | codec->ac97->num = num; | |
0562f788 MW |
2075 | |
2076 | /* | |
2077 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2078 | * device will be registered with the device subsystem later on. | |
2079 | */ | |
2080 | codec->ac97_created = 1; | |
2081 | ||
db2a4165 FM |
2082 | mutex_unlock(&codec->mutex); |
2083 | return 0; | |
2084 | } | |
2085 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2086 | ||
2087 | /** | |
2088 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2089 | * @codec: audio codec | |
2090 | * | |
2091 | * Frees AC97 codec device resources. | |
2092 | */ | |
2093 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2094 | { | |
2095 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2096 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2097 | soc_unregister_ac97_dai_link(codec); | |
2098 | #endif | |
db2a4165 FM |
2099 | kfree(codec->ac97->bus); |
2100 | kfree(codec->ac97); | |
2101 | codec->ac97 = NULL; | |
0562f788 | 2102 | codec->ac97_created = 0; |
db2a4165 FM |
2103 | mutex_unlock(&codec->mutex); |
2104 | } | |
2105 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2106 | ||
c3753707 MB |
2107 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2108 | { | |
2109 | unsigned int ret; | |
2110 | ||
c3acec26 | 2111 | ret = codec->read(codec, reg); |
c3753707 | 2112 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2113 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2114 | |
2115 | return ret; | |
2116 | } | |
2117 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2118 | ||
2119 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2120 | unsigned int reg, unsigned int val) | |
2121 | { | |
2122 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2123 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2124 | return codec->write(codec, reg, val); |
c3753707 MB |
2125 | } |
2126 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2127 | ||
db2a4165 FM |
2128 | /** |
2129 | * snd_soc_update_bits - update codec register bits | |
2130 | * @codec: audio codec | |
2131 | * @reg: codec register | |
2132 | * @mask: register mask | |
2133 | * @value: new value | |
2134 | * | |
2135 | * Writes new register value. | |
2136 | * | |
180c329d | 2137 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2138 | */ |
2139 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2140 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2141 | { |
2142 | int change; | |
46f5822f | 2143 | unsigned int old, new; |
180c329d TT |
2144 | int ret; |
2145 | ||
2146 | ret = snd_soc_read(codec, reg); | |
2147 | if (ret < 0) | |
2148 | return ret; | |
db2a4165 | 2149 | |
180c329d | 2150 | old = ret; |
db2a4165 FM |
2151 | new = (old & ~mask) | value; |
2152 | change = old != new; | |
180c329d TT |
2153 | if (change) { |
2154 | ret = snd_soc_write(codec, reg, new); | |
2155 | if (ret < 0) | |
2156 | return ret; | |
2157 | } | |
db2a4165 | 2158 | |
db2a4165 FM |
2159 | return change; |
2160 | } | |
2161 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2162 | ||
6c508c62 EN |
2163 | /** |
2164 | * snd_soc_update_bits_locked - update codec register bits | |
2165 | * @codec: audio codec | |
2166 | * @reg: codec register | |
2167 | * @mask: register mask | |
2168 | * @value: new value | |
2169 | * | |
2170 | * Writes new register value, and takes the codec mutex. | |
2171 | * | |
2172 | * Returns 1 for change else 0. | |
2173 | */ | |
dd1b3d53 MB |
2174 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2175 | unsigned short reg, unsigned int mask, | |
2176 | unsigned int value) | |
6c508c62 EN |
2177 | { |
2178 | int change; | |
2179 | ||
2180 | mutex_lock(&codec->mutex); | |
2181 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2182 | mutex_unlock(&codec->mutex); | |
2183 | ||
2184 | return change; | |
2185 | } | |
dd1b3d53 | 2186 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2187 | |
db2a4165 FM |
2188 | /** |
2189 | * snd_soc_test_bits - test register for change | |
2190 | * @codec: audio codec | |
2191 | * @reg: codec register | |
2192 | * @mask: register mask | |
2193 | * @value: new value | |
2194 | * | |
2195 | * Tests a register with a new value and checks if the new value is | |
2196 | * different from the old value. | |
2197 | * | |
2198 | * Returns 1 for change else 0. | |
2199 | */ | |
2200 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2201 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2202 | { |
2203 | int change; | |
46f5822f | 2204 | unsigned int old, new; |
db2a4165 | 2205 | |
db2a4165 FM |
2206 | old = snd_soc_read(codec, reg); |
2207 | new = (old & ~mask) | value; | |
2208 | change = old != new; | |
db2a4165 FM |
2209 | |
2210 | return change; | |
2211 | } | |
2212 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2213 | ||
db2a4165 FM |
2214 | /** |
2215 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2216 | * @substream: the pcm substream | |
2217 | * @hw: the hardware parameters | |
2218 | * | |
2219 | * Sets the substream runtime hardware parameters. | |
2220 | */ | |
2221 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2222 | const struct snd_pcm_hardware *hw) | |
2223 | { | |
2224 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2225 | runtime->hw.info = hw->info; | |
2226 | runtime->hw.formats = hw->formats; | |
2227 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2228 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2229 | runtime->hw.periods_min = hw->periods_min; | |
2230 | runtime->hw.periods_max = hw->periods_max; | |
2231 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2232 | runtime->hw.fifo_size = hw->fifo_size; | |
2233 | return 0; | |
2234 | } | |
2235 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2236 | ||
2237 | /** | |
2238 | * snd_soc_cnew - create new control | |
2239 | * @_template: control template | |
2240 | * @data: control private data | |
ac11a2b3 | 2241 | * @long_name: control long name |
db2a4165 FM |
2242 | * |
2243 | * Create a new mixer control from a template control. | |
2244 | * | |
2245 | * Returns 0 for success, else error. | |
2246 | */ | |
2247 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2248 | void *data, char *long_name) | |
2249 | { | |
2250 | struct snd_kcontrol_new template; | |
2251 | ||
2252 | memcpy(&template, _template, sizeof(template)); | |
2253 | if (long_name) | |
2254 | template.name = long_name; | |
db2a4165 FM |
2255 | template.index = 0; |
2256 | ||
2257 | return snd_ctl_new1(&template, data); | |
2258 | } | |
2259 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2260 | ||
3e8e1952 IM |
2261 | /** |
2262 | * snd_soc_add_controls - add an array of controls to a codec. | |
2263 | * Convienience function to add a list of controls. Many codecs were | |
2264 | * duplicating this code. | |
2265 | * | |
2266 | * @codec: codec to add controls to | |
2267 | * @controls: array of controls to add | |
2268 | * @num_controls: number of elements in the array | |
2269 | * | |
2270 | * Return 0 for success, else error. | |
2271 | */ | |
2272 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2273 | const struct snd_kcontrol_new *controls, int num_controls) | |
2274 | { | |
f0fba2ad | 2275 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2276 | char prefixed_name[44], *name; |
3e8e1952 IM |
2277 | int err, i; |
2278 | ||
2279 | for (i = 0; i < num_controls; i++) { | |
2280 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2281 | if (codec->name_prefix) { |
2282 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2283 | codec->name_prefix, control->name); | |
2284 | name = prefixed_name; | |
2285 | } else { | |
2286 | name = control->name; | |
2287 | } | |
2288 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2289 | if (err < 0) { |
082100dc | 2290 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2291 | codec->name, name, err); |
3e8e1952 IM |
2292 | return err; |
2293 | } | |
2294 | } | |
2295 | ||
2296 | return 0; | |
2297 | } | |
2298 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2299 | ||
db2a4165 FM |
2300 | /** |
2301 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2302 | * @kcontrol: mixer control | |
2303 | * @uinfo: control element information | |
2304 | * | |
2305 | * Callback to provide information about a double enumerated | |
2306 | * mixer control. | |
2307 | * | |
2308 | * Returns 0 for success. | |
2309 | */ | |
2310 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2311 | struct snd_ctl_elem_info *uinfo) | |
2312 | { | |
2313 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2314 | ||
2315 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2316 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2317 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2318 | |
f8ba0b7b JS |
2319 | if (uinfo->value.enumerated.item > e->max - 1) |
2320 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2321 | strcpy(uinfo->value.enumerated.name, |
2322 | e->texts[uinfo->value.enumerated.item]); | |
2323 | return 0; | |
2324 | } | |
2325 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2326 | ||
2327 | /** | |
2328 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2329 | * @kcontrol: mixer control | |
ac11a2b3 | 2330 | * @ucontrol: control element information |
db2a4165 FM |
2331 | * |
2332 | * Callback to get the value of a double enumerated mixer. | |
2333 | * | |
2334 | * Returns 0 for success. | |
2335 | */ | |
2336 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2337 | struct snd_ctl_elem_value *ucontrol) | |
2338 | { | |
2339 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2340 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2341 | unsigned int val, bitmask; |
db2a4165 | 2342 | |
f8ba0b7b | 2343 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2344 | ; |
2345 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2346 | ucontrol->value.enumerated.item[0] |
2347 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2348 | if (e->shift_l != e->shift_r) |
2349 | ucontrol->value.enumerated.item[1] = | |
2350 | (val >> e->shift_r) & (bitmask - 1); | |
2351 | ||
2352 | return 0; | |
2353 | } | |
2354 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2355 | ||
2356 | /** | |
2357 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2358 | * @kcontrol: mixer control | |
ac11a2b3 | 2359 | * @ucontrol: control element information |
db2a4165 FM |
2360 | * |
2361 | * Callback to set the value of a double enumerated mixer. | |
2362 | * | |
2363 | * Returns 0 for success. | |
2364 | */ | |
2365 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2366 | struct snd_ctl_elem_value *ucontrol) | |
2367 | { | |
2368 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2369 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2370 | unsigned int val; |
2371 | unsigned int mask, bitmask; | |
db2a4165 | 2372 | |
f8ba0b7b | 2373 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2374 | ; |
f8ba0b7b | 2375 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2376 | return -EINVAL; |
2377 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2378 | mask = (bitmask - 1) << e->shift_l; | |
2379 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2380 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2381 | return -EINVAL; |
2382 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2383 | mask |= (bitmask - 1) << e->shift_r; | |
2384 | } | |
2385 | ||
6c508c62 | 2386 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2387 | } |
2388 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2389 | ||
2e72f8e3 PU |
2390 | /** |
2391 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2392 | * @kcontrol: mixer control | |
2393 | * @ucontrol: control element information | |
2394 | * | |
2395 | * Callback to get the value of a double semi enumerated mixer. | |
2396 | * | |
2397 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2398 | * used for handling bitfield coded enumeration for example. | |
2399 | * | |
2400 | * Returns 0 for success. | |
2401 | */ | |
2402 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2403 | struct snd_ctl_elem_value *ucontrol) | |
2404 | { | |
2405 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2406 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2407 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2408 | |
2409 | reg_val = snd_soc_read(codec, e->reg); | |
2410 | val = (reg_val >> e->shift_l) & e->mask; | |
2411 | for (mux = 0; mux < e->max; mux++) { | |
2412 | if (val == e->values[mux]) | |
2413 | break; | |
2414 | } | |
2415 | ucontrol->value.enumerated.item[0] = mux; | |
2416 | if (e->shift_l != e->shift_r) { | |
2417 | val = (reg_val >> e->shift_r) & e->mask; | |
2418 | for (mux = 0; mux < e->max; mux++) { | |
2419 | if (val == e->values[mux]) | |
2420 | break; | |
2421 | } | |
2422 | ucontrol->value.enumerated.item[1] = mux; | |
2423 | } | |
2424 | ||
2425 | return 0; | |
2426 | } | |
2427 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2428 | ||
2429 | /** | |
2430 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2431 | * @kcontrol: mixer control | |
2432 | * @ucontrol: control element information | |
2433 | * | |
2434 | * Callback to set the value of a double semi enumerated mixer. | |
2435 | * | |
2436 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2437 | * used for handling bitfield coded enumeration for example. | |
2438 | * | |
2439 | * Returns 0 for success. | |
2440 | */ | |
2441 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2442 | struct snd_ctl_elem_value *ucontrol) | |
2443 | { | |
2444 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2445 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2446 | unsigned int val; |
2447 | unsigned int mask; | |
2e72f8e3 PU |
2448 | |
2449 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2450 | return -EINVAL; | |
2451 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2452 | mask = e->mask << e->shift_l; | |
2453 | if (e->shift_l != e->shift_r) { | |
2454 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2455 | return -EINVAL; | |
2456 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2457 | mask |= e->mask << e->shift_r; | |
2458 | } | |
2459 | ||
6c508c62 | 2460 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2461 | } |
2462 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2463 | ||
db2a4165 FM |
2464 | /** |
2465 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2466 | * @kcontrol: mixer control | |
2467 | * @uinfo: control element information | |
2468 | * | |
2469 | * Callback to provide information about an external enumerated | |
2470 | * single mixer. | |
2471 | * | |
2472 | * Returns 0 for success. | |
2473 | */ | |
2474 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2475 | struct snd_ctl_elem_info *uinfo) | |
2476 | { | |
2477 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2478 | ||
2479 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2480 | uinfo->count = 1; | |
f8ba0b7b | 2481 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2482 | |
f8ba0b7b JS |
2483 | if (uinfo->value.enumerated.item > e->max - 1) |
2484 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2485 | strcpy(uinfo->value.enumerated.name, |
2486 | e->texts[uinfo->value.enumerated.item]); | |
2487 | return 0; | |
2488 | } | |
2489 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2490 | ||
2491 | /** | |
2492 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2493 | * @kcontrol: mixer control | |
2494 | * @uinfo: control element information | |
2495 | * | |
2496 | * Callback to provide information about a single external mixer control. | |
2497 | * | |
2498 | * Returns 0 for success. | |
2499 | */ | |
2500 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2501 | struct snd_ctl_elem_info *uinfo) | |
2502 | { | |
a7a4ac86 PZ |
2503 | int max = kcontrol->private_value; |
2504 | ||
fd5dfad9 | 2505 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2506 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2507 | else | |
2508 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2509 | |
db2a4165 FM |
2510 | uinfo->count = 1; |
2511 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2512 | uinfo->value.integer.max = max; |
db2a4165 FM |
2513 | return 0; |
2514 | } | |
2515 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2516 | ||
db2a4165 FM |
2517 | /** |
2518 | * snd_soc_info_volsw - single mixer info callback | |
2519 | * @kcontrol: mixer control | |
2520 | * @uinfo: control element information | |
2521 | * | |
2522 | * Callback to provide information about a single mixer control. | |
2523 | * | |
2524 | * Returns 0 for success. | |
2525 | */ | |
2526 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2527 | struct snd_ctl_elem_info *uinfo) | |
2528 | { | |
4eaa9819 JS |
2529 | struct soc_mixer_control *mc = |
2530 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2531 | int platform_max; |
762b8df7 | 2532 | unsigned int shift = mc->shift; |
815ecf8d | 2533 | unsigned int rshift = mc->rshift; |
db2a4165 | 2534 | |
d11bb4a9 PU |
2535 | if (!mc->platform_max) |
2536 | mc->platform_max = mc->max; | |
2537 | platform_max = mc->platform_max; | |
2538 | ||
2539 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2540 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2541 | else | |
2542 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2543 | ||
db2a4165 FM |
2544 | uinfo->count = shift == rshift ? 1 : 2; |
2545 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2546 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2547 | return 0; |
2548 | } | |
2549 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2550 | ||
2551 | /** | |
2552 | * snd_soc_get_volsw - single mixer get callback | |
2553 | * @kcontrol: mixer control | |
ac11a2b3 | 2554 | * @ucontrol: control element information |
db2a4165 FM |
2555 | * |
2556 | * Callback to get the value of a single mixer control. | |
2557 | * | |
2558 | * Returns 0 for success. | |
2559 | */ | |
2560 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2561 | struct snd_ctl_elem_value *ucontrol) | |
2562 | { | |
4eaa9819 JS |
2563 | struct soc_mixer_control *mc = |
2564 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2565 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2566 | unsigned int reg = mc->reg; |
2567 | unsigned int shift = mc->shift; | |
2568 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2569 | int max = mc->max; |
815ecf8d JS |
2570 | unsigned int mask = (1 << fls(max)) - 1; |
2571 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2572 | |
2573 | ucontrol->value.integer.value[0] = | |
2574 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2575 | if (shift != rshift) | |
2576 | ucontrol->value.integer.value[1] = | |
2577 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2578 | if (invert) { | |
2579 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2580 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2581 | if (shift != rshift) |
2582 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2583 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2584 | } |
2585 | ||
2586 | return 0; | |
2587 | } | |
2588 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2589 | ||
2590 | /** | |
2591 | * snd_soc_put_volsw - single mixer put callback | |
2592 | * @kcontrol: mixer control | |
ac11a2b3 | 2593 | * @ucontrol: control element information |
db2a4165 FM |
2594 | * |
2595 | * Callback to set the value of a single mixer control. | |
2596 | * | |
2597 | * Returns 0 for success. | |
2598 | */ | |
2599 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2600 | struct snd_ctl_elem_value *ucontrol) | |
2601 | { | |
4eaa9819 JS |
2602 | struct soc_mixer_control *mc = |
2603 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2604 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2605 | unsigned int reg = mc->reg; |
2606 | unsigned int shift = mc->shift; | |
2607 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2608 | int max = mc->max; |
815ecf8d JS |
2609 | unsigned int mask = (1 << fls(max)) - 1; |
2610 | unsigned int invert = mc->invert; | |
46f5822f | 2611 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2612 | |
2613 | val = (ucontrol->value.integer.value[0] & mask); | |
2614 | if (invert) | |
a7a4ac86 | 2615 | val = max - val; |
db2a4165 FM |
2616 | val_mask = mask << shift; |
2617 | val = val << shift; | |
2618 | if (shift != rshift) { | |
2619 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2620 | if (invert) | |
a7a4ac86 | 2621 | val2 = max - val2; |
db2a4165 FM |
2622 | val_mask |= mask << rshift; |
2623 | val |= val2 << rshift; | |
2624 | } | |
6c508c62 | 2625 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2626 | } |
2627 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2628 | ||
2629 | /** | |
2630 | * snd_soc_info_volsw_2r - double mixer info callback | |
2631 | * @kcontrol: mixer control | |
2632 | * @uinfo: control element information | |
2633 | * | |
2634 | * Callback to provide information about a double mixer control that | |
2635 | * spans 2 codec registers. | |
2636 | * | |
2637 | * Returns 0 for success. | |
2638 | */ | |
2639 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2640 | struct snd_ctl_elem_info *uinfo) | |
2641 | { | |
4eaa9819 JS |
2642 | struct soc_mixer_control *mc = |
2643 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2644 | int platform_max; |
a7a4ac86 | 2645 | |
d11bb4a9 PU |
2646 | if (!mc->platform_max) |
2647 | mc->platform_max = mc->max; | |
2648 | platform_max = mc->platform_max; | |
2649 | ||
2650 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2651 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2652 | else | |
2653 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2654 | |
db2a4165 FM |
2655 | uinfo->count = 2; |
2656 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2657 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2658 | return 0; |
2659 | } | |
2660 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2661 | ||
2662 | /** | |
2663 | * snd_soc_get_volsw_2r - double mixer get callback | |
2664 | * @kcontrol: mixer control | |
ac11a2b3 | 2665 | * @ucontrol: control element information |
db2a4165 FM |
2666 | * |
2667 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2668 | * | |
2669 | * Returns 0 for success. | |
2670 | */ | |
2671 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2672 | struct snd_ctl_elem_value *ucontrol) | |
2673 | { | |
4eaa9819 JS |
2674 | struct soc_mixer_control *mc = |
2675 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2676 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2677 | unsigned int reg = mc->reg; |
2678 | unsigned int reg2 = mc->rreg; | |
2679 | unsigned int shift = mc->shift; | |
4eaa9819 | 2680 | int max = mc->max; |
46f5822f | 2681 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2682 | unsigned int invert = mc->invert; |
db2a4165 FM |
2683 | |
2684 | ucontrol->value.integer.value[0] = | |
2685 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2686 | ucontrol->value.integer.value[1] = | |
2687 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2688 | if (invert) { | |
2689 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2690 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2691 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2692 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2693 | } |
2694 | ||
2695 | return 0; | |
2696 | } | |
2697 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2698 | ||
2699 | /** | |
2700 | * snd_soc_put_volsw_2r - double mixer set callback | |
2701 | * @kcontrol: mixer control | |
ac11a2b3 | 2702 | * @ucontrol: control element information |
db2a4165 FM |
2703 | * |
2704 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2705 | * | |
2706 | * Returns 0 for success. | |
2707 | */ | |
2708 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2709 | struct snd_ctl_elem_value *ucontrol) | |
2710 | { | |
4eaa9819 JS |
2711 | struct soc_mixer_control *mc = |
2712 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2713 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2714 | unsigned int reg = mc->reg; |
2715 | unsigned int reg2 = mc->rreg; | |
2716 | unsigned int shift = mc->shift; | |
4eaa9819 | 2717 | int max = mc->max; |
815ecf8d JS |
2718 | unsigned int mask = (1 << fls(max)) - 1; |
2719 | unsigned int invert = mc->invert; | |
db2a4165 | 2720 | int err; |
46f5822f | 2721 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2722 | |
2723 | val_mask = mask << shift; | |
2724 | val = (ucontrol->value.integer.value[0] & mask); | |
2725 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2726 | ||
2727 | if (invert) { | |
a7a4ac86 PZ |
2728 | val = max - val; |
2729 | val2 = max - val2; | |
db2a4165 FM |
2730 | } |
2731 | ||
2732 | val = val << shift; | |
2733 | val2 = val2 << shift; | |
2734 | ||
6c508c62 | 2735 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2736 | if (err < 0) |
db2a4165 FM |
2737 | return err; |
2738 | ||
6c508c62 | 2739 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2740 | return err; |
2741 | } | |
2742 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2743 | ||
e13ac2e9 MB |
2744 | /** |
2745 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2746 | * @kcontrol: mixer control | |
2747 | * @uinfo: control element information | |
2748 | * | |
2749 | * Callback to provide information about a signed mixer control. | |
2750 | * | |
2751 | * Returns 0 for success. | |
2752 | */ | |
2753 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2754 | struct snd_ctl_elem_info *uinfo) | |
2755 | { | |
4eaa9819 JS |
2756 | struct soc_mixer_control *mc = |
2757 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2758 | int platform_max; |
4eaa9819 | 2759 | int min = mc->min; |
e13ac2e9 | 2760 | |
d11bb4a9 PU |
2761 | if (!mc->platform_max) |
2762 | mc->platform_max = mc->max; | |
2763 | platform_max = mc->platform_max; | |
2764 | ||
e13ac2e9 MB |
2765 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2766 | uinfo->count = 2; | |
2767 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2768 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2769 | return 0; |
2770 | } | |
2771 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2772 | ||
2773 | /** | |
2774 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2775 | * @kcontrol: mixer control | |
ac11a2b3 | 2776 | * @ucontrol: control element information |
e13ac2e9 MB |
2777 | * |
2778 | * Callback to get the value of a signed mixer control. | |
2779 | * | |
2780 | * Returns 0 for success. | |
2781 | */ | |
2782 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2783 | struct snd_ctl_elem_value *ucontrol) | |
2784 | { | |
4eaa9819 JS |
2785 | struct soc_mixer_control *mc = |
2786 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2787 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2788 | unsigned int reg = mc->reg; |
4eaa9819 | 2789 | int min = mc->min; |
e13ac2e9 MB |
2790 | int val = snd_soc_read(codec, reg); |
2791 | ||
2792 | ucontrol->value.integer.value[0] = | |
2793 | ((signed char)(val & 0xff))-min; | |
2794 | ucontrol->value.integer.value[1] = | |
2795 | ((signed char)((val >> 8) & 0xff))-min; | |
2796 | return 0; | |
2797 | } | |
2798 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2799 | ||
2800 | /** | |
2801 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2802 | * @kcontrol: mixer control | |
ac11a2b3 | 2803 | * @ucontrol: control element information |
e13ac2e9 MB |
2804 | * |
2805 | * Callback to set the value of a signed mixer control. | |
2806 | * | |
2807 | * Returns 0 for success. | |
2808 | */ | |
2809 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2810 | struct snd_ctl_elem_value *ucontrol) | |
2811 | { | |
4eaa9819 JS |
2812 | struct soc_mixer_control *mc = |
2813 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2814 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2815 | unsigned int reg = mc->reg; |
4eaa9819 | 2816 | int min = mc->min; |
46f5822f | 2817 | unsigned int val; |
e13ac2e9 MB |
2818 | |
2819 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2820 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2821 | ||
6c508c62 | 2822 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2823 | } |
2824 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2825 | ||
637d3847 PU |
2826 | /** |
2827 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2828 | * | |
2829 | * @codec: where to look for the control | |
2830 | * @name: Name of the control | |
2831 | * @max: new maximum limit | |
2832 | * | |
2833 | * Return 0 for success, else error. | |
2834 | */ | |
2835 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2836 | const char *name, int max) | |
2837 | { | |
f0fba2ad | 2838 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2839 | struct snd_kcontrol *kctl; |
2840 | struct soc_mixer_control *mc; | |
2841 | int found = 0; | |
2842 | int ret = -EINVAL; | |
2843 | ||
2844 | /* Sanity check for name and max */ | |
2845 | if (unlikely(!name || max <= 0)) | |
2846 | return -EINVAL; | |
2847 | ||
2848 | list_for_each_entry(kctl, &card->controls, list) { | |
2849 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2850 | found = 1; | |
2851 | break; | |
2852 | } | |
2853 | } | |
2854 | if (found) { | |
2855 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2856 | if (max <= mc->max) { | |
d11bb4a9 | 2857 | mc->platform_max = max; |
637d3847 PU |
2858 | ret = 0; |
2859 | } | |
2860 | } | |
2861 | return ret; | |
2862 | } | |
2863 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2864 | ||
b6f4bb38 | 2865 | /** |
2866 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2867 | * mixer info callback | |
2868 | * @kcontrol: mixer control | |
2869 | * @uinfo: control element information | |
2870 | * | |
2871 | * Returns 0 for success. | |
2872 | */ | |
2873 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2874 | struct snd_ctl_elem_info *uinfo) | |
2875 | { | |
2876 | struct soc_mixer_control *mc = | |
2877 | (struct soc_mixer_control *)kcontrol->private_value; | |
2878 | int max = mc->max; | |
2879 | int min = mc->min; | |
2880 | ||
2881 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2882 | uinfo->count = 2; | |
2883 | uinfo->value.integer.min = 0; | |
2884 | uinfo->value.integer.max = max-min; | |
2885 | ||
2886 | return 0; | |
2887 | } | |
2888 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2889 | ||
2890 | /** | |
2891 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2892 | * mixer get callback | |
2893 | * @kcontrol: mixer control | |
2894 | * @uinfo: control element information | |
2895 | * | |
2896 | * Returns 0 for success. | |
2897 | */ | |
2898 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2899 | struct snd_ctl_elem_value *ucontrol) | |
2900 | { | |
2901 | struct soc_mixer_control *mc = | |
2902 | (struct soc_mixer_control *)kcontrol->private_value; | |
2903 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2904 | unsigned int mask = (1<<mc->shift)-1; | |
2905 | int min = mc->min; | |
2906 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2907 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2908 | ||
20630c7f SL |
2909 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2910 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2911 | return 0; |
2912 | } | |
2913 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2914 | ||
2915 | /** | |
2916 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2917 | * mixer put callback | |
2918 | * @kcontrol: mixer control | |
2919 | * @uinfo: control element information | |
2920 | * | |
2921 | * Returns 0 for success. | |
2922 | */ | |
2923 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2924 | struct snd_ctl_elem_value *ucontrol) | |
2925 | { | |
2926 | struct soc_mixer_control *mc = | |
2927 | (struct soc_mixer_control *)kcontrol->private_value; | |
2928 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2929 | unsigned int mask = (1<<mc->shift)-1; | |
2930 | int min = mc->min; | |
2931 | int ret; | |
2932 | unsigned int val, valr, oval, ovalr; | |
2933 | ||
2934 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2935 | val &= mask; | |
2936 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2937 | valr &= mask; | |
2938 | ||
2939 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2940 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2941 | ||
2942 | ret = 0; | |
2943 | if (oval != val) { | |
2944 | ret = snd_soc_write(codec, mc->reg, val); | |
2945 | if (ret < 0) | |
f1df5aec | 2946 | return ret; |
b6f4bb38 | 2947 | } |
2948 | if (ovalr != valr) { | |
2949 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2950 | if (ret < 0) | |
f1df5aec | 2951 | return ret; |
b6f4bb38 | 2952 | } |
2953 | ||
2954 | return 0; | |
2955 | } | |
2956 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2957 | ||
8c6529db LG |
2958 | /** |
2959 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2960 | * @dai: DAI | |
2961 | * @clk_id: DAI specific clock ID | |
2962 | * @freq: new clock frequency in Hz | |
2963 | * @dir: new clock direction - input/output. | |
2964 | * | |
2965 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2966 | */ | |
2967 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2968 | unsigned int freq, int dir) | |
2969 | { | |
f0fba2ad LG |
2970 | if (dai->driver && dai->driver->ops->set_sysclk) |
2971 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2972 | else |
2973 | return -EINVAL; | |
2974 | } | |
2975 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2976 | ||
2977 | /** | |
2978 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2979 | * @dai: DAI | |
ac11a2b3 | 2980 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2981 | * @div: new clock divisor. |
2982 | * | |
2983 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2984 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2985 | * and frame clocks as low as possible to save system power. | |
2986 | */ | |
2987 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2988 | int div_id, int div) | |
2989 | { | |
f0fba2ad LG |
2990 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2991 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2992 | else |
2993 | return -EINVAL; | |
2994 | } | |
2995 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2996 | ||
2997 | /** | |
2998 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2999 | * @dai: DAI | |
3000 | * @pll_id: DAI specific PLL ID | |
85488037 | 3001 | * @source: DAI specific source for the PLL |
8c6529db LG |
3002 | * @freq_in: PLL input clock frequency in Hz |
3003 | * @freq_out: requested PLL output clock frequency in Hz | |
3004 | * | |
3005 | * Configures and enables PLL to generate output clock based on input clock. | |
3006 | */ | |
85488037 MB |
3007 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3008 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3009 | { |
f0fba2ad LG |
3010 | if (dai->driver && dai->driver->ops->set_pll) |
3011 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3012 | freq_in, freq_out); |
8c6529db LG |
3013 | else |
3014 | return -EINVAL; | |
3015 | } | |
3016 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3017 | ||
3018 | /** | |
3019 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3020 | * @dai: DAI | |
8c6529db LG |
3021 | * @fmt: SND_SOC_DAIFMT_ format value. |
3022 | * | |
3023 | * Configures the DAI hardware format and clocking. | |
3024 | */ | |
3025 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3026 | { | |
f0fba2ad LG |
3027 | if (dai->driver && dai->driver->ops->set_fmt) |
3028 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3029 | else |
3030 | return -EINVAL; | |
3031 | } | |
3032 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3033 | ||
3034 | /** | |
3035 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3036 | * @dai: DAI | |
a5479e38 DR |
3037 | * @tx_mask: bitmask representing active TX slots. |
3038 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3039 | * @slots: Number of slots in use. |
a5479e38 | 3040 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3041 | * |
3042 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3043 | * specific. | |
3044 | */ | |
3045 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3046 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3047 | { |
f0fba2ad LG |
3048 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3049 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3050 | slots, slot_width); |
8c6529db LG |
3051 | else |
3052 | return -EINVAL; | |
3053 | } | |
3054 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3055 | ||
472df3cb BS |
3056 | /** |
3057 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3058 | * @dai: DAI | |
3059 | * @tx_num: how many TX channels | |
3060 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3061 | * 0~num-1 uses | |
3062 | * @rx_num: how many RX channels | |
3063 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3064 | * 0~num-1 uses | |
3065 | * | |
3066 | * configure the relationship between channel number and TDM slot number. | |
3067 | */ | |
3068 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3069 | unsigned int tx_num, unsigned int *tx_slot, | |
3070 | unsigned int rx_num, unsigned int *rx_slot) | |
3071 | { | |
f0fba2ad LG |
3072 | if (dai->driver && dai->driver->ops->set_channel_map) |
3073 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3074 | rx_num, rx_slot); |
3075 | else | |
3076 | return -EINVAL; | |
3077 | } | |
3078 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3079 | ||
8c6529db LG |
3080 | /** |
3081 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3082 | * @dai: DAI | |
3083 | * @tristate: tristate enable | |
3084 | * | |
3085 | * Tristates the DAI so that others can use it. | |
3086 | */ | |
3087 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3088 | { | |
f0fba2ad LG |
3089 | if (dai->driver && dai->driver->ops->set_tristate) |
3090 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3091 | else |
3092 | return -EINVAL; | |
3093 | } | |
3094 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3095 | ||
3096 | /** | |
3097 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3098 | * @dai: DAI | |
3099 | * @mute: mute enable | |
3100 | * | |
3101 | * Mutes the DAI DAC. | |
3102 | */ | |
3103 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3104 | { | |
f0fba2ad LG |
3105 | if (dai->driver && dai->driver->ops->digital_mute) |
3106 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3107 | else |
3108 | return -EINVAL; | |
3109 | } | |
3110 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3111 | ||
c5af3a2e MB |
3112 | /** |
3113 | * snd_soc_register_card - Register a card with the ASoC core | |
3114 | * | |
ac11a2b3 | 3115 | * @card: Card to register |
c5af3a2e | 3116 | * |
c5af3a2e | 3117 | */ |
70a7ca34 | 3118 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3119 | { |
f0fba2ad LG |
3120 | int i; |
3121 | ||
c5af3a2e MB |
3122 | if (!card->name || !card->dev) |
3123 | return -EINVAL; | |
3124 | ||
150dd2f8 VK |
3125 | soc_init_card_debugfs(card); |
3126 | ||
2eea392d JN |
3127 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3128 | (card->num_links + card->num_aux_devs), | |
3129 | GFP_KERNEL); | |
f0fba2ad LG |
3130 | if (card->rtd == NULL) |
3131 | return -ENOMEM; | |
2eea392d | 3132 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3133 | |
3134 | for (i = 0; i < card->num_links; i++) | |
3135 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3136 | ||
c5af3a2e MB |
3137 | INIT_LIST_HEAD(&card->list); |
3138 | card->instantiated = 0; | |
f0fba2ad | 3139 | mutex_init(&card->mutex); |
c5af3a2e MB |
3140 | |
3141 | mutex_lock(&client_mutex); | |
3142 | list_add(&card->list, &card_list); | |
435c5e25 | 3143 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3144 | mutex_unlock(&client_mutex); |
3145 | ||
3146 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3147 | ||
3148 | return 0; | |
3149 | } | |
70a7ca34 | 3150 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3151 | |
3152 | /** | |
3153 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3154 | * | |
ac11a2b3 | 3155 | * @card: Card to unregister |
c5af3a2e | 3156 | * |
c5af3a2e | 3157 | */ |
70a7ca34 | 3158 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3159 | { |
b0e26485 VK |
3160 | if (card->instantiated) |
3161 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3162 | mutex_lock(&client_mutex); |
3163 | list_del(&card->list); | |
3164 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3165 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3166 | ||
3167 | return 0; | |
3168 | } | |
70a7ca34 | 3169 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3170 | |
f0fba2ad LG |
3171 | /* |
3172 | * Simplify DAI link configuration by removing ".-1" from device names | |
3173 | * and sanitizing names. | |
3174 | */ | |
0b9a214a | 3175 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3176 | { |
3177 | char *found, name[NAME_SIZE]; | |
3178 | int id1, id2; | |
3179 | ||
3180 | if (dev_name(dev) == NULL) | |
3181 | return NULL; | |
3182 | ||
58818a77 | 3183 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3184 | |
3185 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3186 | found = strstr(name, dev->driver->name); | |
3187 | if (found) { | |
3188 | /* get ID */ | |
3189 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3190 | ||
3191 | /* discard ID from name if ID == -1 */ | |
3192 | if (*id == -1) | |
3193 | found[strlen(dev->driver->name)] = '\0'; | |
3194 | } | |
3195 | ||
3196 | } else { | |
3197 | /* I2C component devices are named "bus-addr" */ | |
3198 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3199 | char tmp[NAME_SIZE]; | |
3200 | ||
3201 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3202 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3203 | |
3204 | /* sanitize component name for DAI link creation */ | |
3205 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3206 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3207 | } else |
3208 | *id = 0; | |
3209 | } | |
3210 | ||
3211 | return kstrdup(name, GFP_KERNEL); | |
3212 | } | |
3213 | ||
3214 | /* | |
3215 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3216 | * any ".-1" and using the DAI name (instead of device name). | |
3217 | */ | |
3218 | static inline char *fmt_multiple_name(struct device *dev, | |
3219 | struct snd_soc_dai_driver *dai_drv) | |
3220 | { | |
3221 | if (dai_drv->name == NULL) { | |
3222 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3223 | dev_name(dev)); | |
3224 | return NULL; | |
3225 | } | |
3226 | ||
3227 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3228 | } | |
3229 | ||
9115171a MB |
3230 | /** |
3231 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3232 | * | |
ac11a2b3 | 3233 | * @dai: DAI to register |
9115171a | 3234 | */ |
f0fba2ad LG |
3235 | int snd_soc_register_dai(struct device *dev, |
3236 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3237 | { |
f0fba2ad LG |
3238 | struct snd_soc_dai *dai; |
3239 | ||
3240 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3241 | |
f0fba2ad LG |
3242 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3243 | if (dai == NULL) | |
3244 | return -ENOMEM; | |
9115171a | 3245 | |
f0fba2ad LG |
3246 | /* create DAI component name */ |
3247 | dai->name = fmt_single_name(dev, &dai->id); | |
3248 | if (dai->name == NULL) { | |
3249 | kfree(dai); | |
3250 | return -ENOMEM; | |
3251 | } | |
6335d055 | 3252 | |
f0fba2ad LG |
3253 | dai->dev = dev; |
3254 | dai->driver = dai_drv; | |
3255 | if (!dai->driver->ops) | |
3256 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3257 | |
3258 | mutex_lock(&client_mutex); | |
3259 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3260 | snd_soc_instantiate_cards(); |
9115171a MB |
3261 | mutex_unlock(&client_mutex); |
3262 | ||
3263 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3264 | ||
3265 | return 0; | |
3266 | } | |
3267 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3268 | ||
3269 | /** | |
3270 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3271 | * | |
ac11a2b3 | 3272 | * @dai: DAI to unregister |
9115171a | 3273 | */ |
f0fba2ad | 3274 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3275 | { |
f0fba2ad LG |
3276 | struct snd_soc_dai *dai; |
3277 | ||
3278 | list_for_each_entry(dai, &dai_list, list) { | |
3279 | if (dev == dai->dev) | |
3280 | goto found; | |
3281 | } | |
3282 | return; | |
3283 | ||
3284 | found: | |
9115171a MB |
3285 | mutex_lock(&client_mutex); |
3286 | list_del(&dai->list); | |
3287 | mutex_unlock(&client_mutex); | |
3288 | ||
3289 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3290 | kfree(dai->name); |
3291 | kfree(dai); | |
9115171a MB |
3292 | } |
3293 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3294 | ||
3295 | /** | |
3296 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3297 | * | |
ac11a2b3 MB |
3298 | * @dai: Array of DAIs to register |
3299 | * @count: Number of DAIs | |
9115171a | 3300 | */ |
f0fba2ad LG |
3301 | int snd_soc_register_dais(struct device *dev, |
3302 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3303 | { |
f0fba2ad LG |
3304 | struct snd_soc_dai *dai; |
3305 | int i, ret = 0; | |
3306 | ||
720ffa4c | 3307 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3308 | |
3309 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3310 | |
3311 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3312 | if (dai == NULL) { |
3313 | ret = -ENOMEM; | |
3314 | goto err; | |
3315 | } | |
f0fba2ad LG |
3316 | |
3317 | /* create DAI component name */ | |
3318 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3319 | if (dai->name == NULL) { | |
3320 | kfree(dai); | |
3321 | ret = -EINVAL; | |
9115171a | 3322 | goto err; |
f0fba2ad LG |
3323 | } |
3324 | ||
3325 | dai->dev = dev; | |
f0fba2ad | 3326 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3327 | if (dai->driver->id) |
3328 | dai->id = dai->driver->id; | |
3329 | else | |
3330 | dai->id = i; | |
f0fba2ad LG |
3331 | if (!dai->driver->ops) |
3332 | dai->driver->ops = &null_dai_ops; | |
3333 | ||
3334 | mutex_lock(&client_mutex); | |
3335 | list_add(&dai->list, &dai_list); | |
3336 | mutex_unlock(&client_mutex); | |
3337 | ||
3338 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3339 | } |
3340 | ||
1dcb4f38 | 3341 | mutex_lock(&client_mutex); |
f0fba2ad | 3342 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3343 | mutex_unlock(&client_mutex); |
9115171a MB |
3344 | return 0; |
3345 | ||
3346 | err: | |
3347 | for (i--; i >= 0; i--) | |
f0fba2ad | 3348 | snd_soc_unregister_dai(dev); |
9115171a MB |
3349 | |
3350 | return ret; | |
3351 | } | |
3352 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3353 | ||
3354 | /** | |
3355 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3356 | * | |
ac11a2b3 MB |
3357 | * @dai: Array of DAIs to unregister |
3358 | * @count: Number of DAIs | |
9115171a | 3359 | */ |
f0fba2ad | 3360 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3361 | { |
3362 | int i; | |
3363 | ||
3364 | for (i = 0; i < count; i++) | |
f0fba2ad | 3365 | snd_soc_unregister_dai(dev); |
9115171a MB |
3366 | } |
3367 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3368 | ||
12a48a8c MB |
3369 | /** |
3370 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3371 | * | |
ac11a2b3 | 3372 | * @platform: platform to register |
12a48a8c | 3373 | */ |
f0fba2ad LG |
3374 | int snd_soc_register_platform(struct device *dev, |
3375 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3376 | { |
f0fba2ad LG |
3377 | struct snd_soc_platform *platform; |
3378 | ||
3379 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3380 | ||
3381 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3382 | if (platform == NULL) | |
3383 | return -ENOMEM; | |
3384 | ||
3385 | /* create platform component name */ | |
3386 | platform->name = fmt_single_name(dev, &platform->id); | |
3387 | if (platform->name == NULL) { | |
3388 | kfree(platform); | |
3389 | return -ENOMEM; | |
3390 | } | |
12a48a8c | 3391 | |
f0fba2ad LG |
3392 | platform->dev = dev; |
3393 | platform->driver = platform_drv; | |
12a48a8c MB |
3394 | |
3395 | mutex_lock(&client_mutex); | |
3396 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3397 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3398 | mutex_unlock(&client_mutex); |
3399 | ||
3400 | pr_debug("Registered platform '%s'\n", platform->name); | |
3401 | ||
3402 | return 0; | |
3403 | } | |
3404 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3405 | ||
3406 | /** | |
3407 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3408 | * | |
ac11a2b3 | 3409 | * @platform: platform to unregister |
12a48a8c | 3410 | */ |
f0fba2ad | 3411 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3412 | { |
f0fba2ad LG |
3413 | struct snd_soc_platform *platform; |
3414 | ||
3415 | list_for_each_entry(platform, &platform_list, list) { | |
3416 | if (dev == platform->dev) | |
3417 | goto found; | |
3418 | } | |
3419 | return; | |
3420 | ||
3421 | found: | |
12a48a8c MB |
3422 | mutex_lock(&client_mutex); |
3423 | list_del(&platform->list); | |
3424 | mutex_unlock(&client_mutex); | |
3425 | ||
3426 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3427 | kfree(platform->name); |
3428 | kfree(platform); | |
12a48a8c MB |
3429 | } |
3430 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3431 | ||
151ab22c MB |
3432 | static u64 codec_format_map[] = { |
3433 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3434 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3435 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3436 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3437 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3438 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3439 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3440 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3441 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3442 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3443 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3444 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3445 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3446 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3447 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3448 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3449 | }; | |
3450 | ||
3451 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3452 | * the endianness of the data but we're using the CPU format | |
3453 | * definitions which do need to include endianness so we ensure that | |
3454 | * codec DAIs always have both big and little endian variants set. | |
3455 | */ | |
3456 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3457 | { | |
3458 | int i; | |
3459 | ||
3460 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3461 | if (stream->formats & codec_format_map[i]) | |
3462 | stream->formats |= codec_format_map[i]; | |
3463 | } | |
3464 | ||
0d0cf00a MB |
3465 | /** |
3466 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3467 | * | |
ac11a2b3 | 3468 | * @codec: codec to register |
0d0cf00a | 3469 | */ |
f0fba2ad | 3470 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3471 | const struct snd_soc_codec_driver *codec_drv, |
3472 | struct snd_soc_dai_driver *dai_drv, | |
3473 | int num_dai) | |
0d0cf00a | 3474 | { |
3335ddca | 3475 | size_t reg_size; |
f0fba2ad LG |
3476 | struct snd_soc_codec *codec; |
3477 | int ret, i; | |
151ab22c | 3478 | |
f0fba2ad LG |
3479 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3480 | ||
3481 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3482 | if (codec == NULL) | |
3483 | return -ENOMEM; | |
0d0cf00a | 3484 | |
f0fba2ad LG |
3485 | /* create CODEC component name */ |
3486 | codec->name = fmt_single_name(dev, &codec->id); | |
3487 | if (codec->name == NULL) { | |
3488 | kfree(codec); | |
3489 | return -ENOMEM; | |
3490 | } | |
3491 | ||
23bbce34 DP |
3492 | if (codec_drv->compress_type) |
3493 | codec->compress_type = codec_drv->compress_type; | |
3494 | else | |
3495 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3496 | ||
c3acec26 MB |
3497 | codec->write = codec_drv->write; |
3498 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3499 | codec->volatile_register = codec_drv->volatile_register; |
3500 | codec->readable_register = codec_drv->readable_register; | |
ce6120cc LG |
3501 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3502 | codec->dapm.dev = dev; | |
3503 | codec->dapm.codec = codec; | |
474b62d6 | 3504 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3505 | codec->dev = dev; |
3506 | codec->driver = codec_drv; | |
3507 | codec->num_dai = num_dai; | |
3508 | mutex_init(&codec->mutex); | |
ce6120cc | 3509 | |
f0fba2ad LG |
3510 | /* allocate CODEC register cache */ |
3511 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3512 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3513 | codec->reg_size = reg_size; |
3335ddca DP |
3514 | /* it is necessary to make a copy of the default register cache |
3515 | * because in the case of using a compression type that requires | |
3516 | * the default register cache to be marked as __devinitconst the | |
3517 | * kernel might have freed the array by the time we initialize | |
3518 | * the cache. | |
3519 | */ | |
2aa86323 DP |
3520 | if (codec_drv->reg_cache_default) { |
3521 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3522 | reg_size, GFP_KERNEL); | |
3523 | if (!codec->reg_def_copy) { | |
3524 | ret = -ENOMEM; | |
3525 | goto fail; | |
3526 | } | |
f0fba2ad | 3527 | } |
151ab22c MB |
3528 | } |
3529 | ||
1500b7b5 DP |
3530 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3531 | if (!codec->volatile_register) | |
3532 | codec->volatile_register = snd_soc_default_volatile_register; | |
3533 | if (!codec->readable_register) | |
3534 | codec->readable_register = snd_soc_default_readable_register; | |
3535 | } | |
3536 | ||
f0fba2ad LG |
3537 | for (i = 0; i < num_dai; i++) { |
3538 | fixup_codec_formats(&dai_drv[i].playback); | |
3539 | fixup_codec_formats(&dai_drv[i].capture); | |
3540 | } | |
3541 | ||
26b01ccd MB |
3542 | /* register any DAIs */ |
3543 | if (num_dai) { | |
3544 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3545 | if (ret < 0) | |
fdf0f54d | 3546 | goto fail; |
26b01ccd | 3547 | } |
f0fba2ad | 3548 | |
0d0cf00a MB |
3549 | mutex_lock(&client_mutex); |
3550 | list_add(&codec->list, &codec_list); | |
3551 | snd_soc_instantiate_cards(); | |
3552 | mutex_unlock(&client_mutex); | |
3553 | ||
3554 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3555 | return 0; |
f0fba2ad | 3556 | |
fdf0f54d | 3557 | fail: |
3335ddca DP |
3558 | kfree(codec->reg_def_copy); |
3559 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3560 | kfree(codec->name); |
3561 | kfree(codec); | |
3562 | return ret; | |
0d0cf00a MB |
3563 | } |
3564 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3565 | ||
3566 | /** | |
3567 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3568 | * | |
ac11a2b3 | 3569 | * @codec: codec to unregister |
0d0cf00a | 3570 | */ |
f0fba2ad | 3571 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3572 | { |
f0fba2ad LG |
3573 | struct snd_soc_codec *codec; |
3574 | int i; | |
3575 | ||
3576 | list_for_each_entry(codec, &codec_list, list) { | |
3577 | if (dev == codec->dev) | |
3578 | goto found; | |
3579 | } | |
3580 | return; | |
3581 | ||
3582 | found: | |
26b01ccd MB |
3583 | if (codec->num_dai) |
3584 | for (i = 0; i < codec->num_dai; i++) | |
3585 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3586 | |
0d0cf00a MB |
3587 | mutex_lock(&client_mutex); |
3588 | list_del(&codec->list); | |
3589 | mutex_unlock(&client_mutex); | |
3590 | ||
3591 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3592 | |
7a30a3db | 3593 | snd_soc_cache_exit(codec); |
3335ddca | 3594 | kfree(codec->reg_def_copy); |
1aafcd4d | 3595 | kfree(codec->name); |
f0fba2ad | 3596 | kfree(codec); |
0d0cf00a MB |
3597 | } |
3598 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3599 | ||
c9b3a40f | 3600 | static int __init snd_soc_init(void) |
db2a4165 | 3601 | { |
384c89e2 | 3602 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3603 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3604 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3605 | printk(KERN_WARNING |
3606 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3607 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3608 | } |
c3c5a19a | 3609 | |
8a9dab1a | 3610 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3611 | &codec_list_fops)) |
3612 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3613 | ||
8a9dab1a | 3614 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3615 | &dai_list_fops)) |
3616 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3617 | |
8a9dab1a | 3618 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3619 | &platform_list_fops)) |
3620 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3621 | #endif |
3622 | ||
db2a4165 FM |
3623 | return platform_driver_register(&soc_driver); |
3624 | } | |
4abe8e16 | 3625 | module_init(snd_soc_init); |
db2a4165 | 3626 | |
7d8c16a6 | 3627 | static void __exit snd_soc_exit(void) |
db2a4165 | 3628 | { |
384c89e2 | 3629 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3630 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3631 | #endif |
3ff3f64b | 3632 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3633 | } |
db2a4165 FM |
3634 | module_exit(snd_soc_exit); |
3635 | ||
3636 | /* Module information */ | |
d331124d | 3637 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3638 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3639 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3640 | MODULE_ALIAS("platform:soc-audio"); |