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 FM |
35 | #include <sound/core.h> |
36 | #include <sound/pcm.h> | |
37 | #include <sound/pcm_params.h> | |
38 | #include <sound/soc.h> | |
39 | #include <sound/soc-dapm.h> | |
40 | #include <sound/initval.h> | |
41 | ||
f0fba2ad LG |
42 | #define NAME_SIZE 32 |
43 | ||
db2a4165 | 44 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
45 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
46 | ||
384c89e2 MB |
47 | #ifdef CONFIG_DEBUG_FS |
48 | static struct dentry *debugfs_root; | |
49 | #endif | |
50 | ||
c5af3a2e MB |
51 | static DEFINE_MUTEX(client_mutex); |
52 | static LIST_HEAD(card_list); | |
9115171a | 53 | static LIST_HEAD(dai_list); |
12a48a8c | 54 | static LIST_HEAD(platform_list); |
0d0cf00a | 55 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
56 | |
57 | static int snd_soc_register_card(struct snd_soc_card *card); | |
58 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
f0fba2ad | 59 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
965ac42c LG |
70 | /* |
71 | * This function forces any delayed work to be queued and run. | |
72 | */ | |
73 | static int run_delayed_work(struct delayed_work *dwork) | |
74 | { | |
75 | int ret; | |
76 | ||
77 | /* cancel any work waiting to be queued. */ | |
78 | ret = cancel_delayed_work(dwork); | |
79 | ||
80 | /* if there was any work waiting then we run it now and | |
81 | * wait for it's completion */ | |
82 | if (ret) { | |
83 | schedule_delayed_work(dwork, 0); | |
84 | flush_scheduled_work(); | |
85 | } | |
86 | return ret; | |
87 | } | |
88 | ||
2624d5fa MB |
89 | /* codec register dump */ |
90 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
91 | { | |
5164d74d | 92 | int ret, i, step = 1, count = 0; |
2624d5fa | 93 | |
f0fba2ad | 94 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
95 | return 0; |
96 | ||
f0fba2ad LG |
97 | if (codec->driver->reg_cache_step) |
98 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
99 | |
100 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad LG |
101 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
102 | if (codec->driver->readable_register && !codec->driver->readable_register(i)) | |
2624d5fa MB |
103 | continue; |
104 | ||
105 | count += sprintf(buf + count, "%2x: ", i); | |
106 | if (count >= PAGE_SIZE - 1) | |
107 | break; | |
108 | ||
f0fba2ad LG |
109 | if (codec->driver->display_register) { |
110 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 111 | PAGE_SIZE - count, i); |
5164d74d MB |
112 | } else { |
113 | /* If the read fails it's almost certainly due to | |
114 | * the register being volatile and the device being | |
115 | * powered off. | |
116 | */ | |
f0fba2ad | 117 | ret = codec->driver->read(codec, i); |
5164d74d MB |
118 | if (ret >= 0) |
119 | count += snprintf(buf + count, | |
120 | PAGE_SIZE - count, | |
121 | "%4x", ret); | |
122 | else | |
123 | count += snprintf(buf + count, | |
124 | PAGE_SIZE - count, | |
125 | "<no data: %d>", ret); | |
126 | } | |
2624d5fa MB |
127 | |
128 | if (count >= PAGE_SIZE - 1) | |
129 | break; | |
130 | ||
131 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
132 | if (count >= PAGE_SIZE - 1) | |
133 | break; | |
134 | } | |
135 | ||
136 | /* Truncate count; min() would cause a warning */ | |
137 | if (count >= PAGE_SIZE) | |
138 | count = PAGE_SIZE - 1; | |
139 | ||
140 | return count; | |
141 | } | |
142 | static ssize_t codec_reg_show(struct device *dev, | |
143 | struct device_attribute *attr, char *buf) | |
144 | { | |
f0fba2ad LG |
145 | struct snd_soc_pcm_runtime *rtd = |
146 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
147 | ||
148 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
149 | } |
150 | ||
151 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
152 | ||
dbe21408 MB |
153 | static ssize_t pmdown_time_show(struct device *dev, |
154 | struct device_attribute *attr, char *buf) | |
155 | { | |
f0fba2ad LG |
156 | struct snd_soc_pcm_runtime *rtd = |
157 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 158 | |
f0fba2ad | 159 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
160 | } |
161 | ||
162 | static ssize_t pmdown_time_set(struct device *dev, | |
163 | struct device_attribute *attr, | |
164 | const char *buf, size_t count) | |
165 | { | |
f0fba2ad LG |
166 | struct snd_soc_pcm_runtime *rtd = |
167 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 168 | int ret; |
dbe21408 | 169 | |
c593b520 MB |
170 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
171 | if (ret) | |
172 | return ret; | |
dbe21408 MB |
173 | |
174 | return count; | |
175 | } | |
176 | ||
177 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
178 | ||
2624d5fa MB |
179 | #ifdef CONFIG_DEBUG_FS |
180 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
181 | { | |
182 | file->private_data = inode->i_private; | |
183 | return 0; | |
184 | } | |
185 | ||
186 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
187 | size_t count, loff_t *ppos) | |
188 | { | |
189 | ssize_t ret; | |
190 | struct snd_soc_codec *codec = file->private_data; | |
191 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
192 | if (!buf) | |
193 | return -ENOMEM; | |
194 | ret = soc_codec_reg_show(codec, buf); | |
195 | if (ret >= 0) | |
196 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
197 | kfree(buf); | |
198 | return ret; | |
199 | } | |
200 | ||
201 | static ssize_t codec_reg_write_file(struct file *file, | |
202 | const char __user *user_buf, size_t count, loff_t *ppos) | |
203 | { | |
204 | char buf[32]; | |
205 | int buf_size; | |
206 | char *start = buf; | |
207 | unsigned long reg, value; | |
208 | int step = 1; | |
209 | struct snd_soc_codec *codec = file->private_data; | |
210 | ||
211 | buf_size = min(count, (sizeof(buf)-1)); | |
212 | if (copy_from_user(buf, user_buf, buf_size)) | |
213 | return -EFAULT; | |
214 | buf[buf_size] = 0; | |
215 | ||
f0fba2ad LG |
216 | if (codec->driver->reg_cache_step) |
217 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
218 | |
219 | while (*start == ' ') | |
220 | start++; | |
221 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 222 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
223 | return -EINVAL; |
224 | while (*start == ' ') | |
225 | start++; | |
226 | if (strict_strtoul(start, 16, &value)) | |
227 | return -EINVAL; | |
f0fba2ad | 228 | codec->driver->write(codec, reg, value); |
2624d5fa MB |
229 | return buf_size; |
230 | } | |
231 | ||
232 | static const struct file_operations codec_reg_fops = { | |
233 | .open = codec_reg_open_file, | |
234 | .read = codec_reg_read_file, | |
235 | .write = codec_reg_write_file, | |
6038f373 | 236 | .llseek = default_llseek, |
2624d5fa MB |
237 | }; |
238 | ||
239 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
240 | { | |
6ba6c9c3 | 241 | codec->debugfs_codec_root = debugfs_create_dir(codec->name , |
2624d5fa MB |
242 | debugfs_root); |
243 | if (!codec->debugfs_codec_root) { | |
244 | printk(KERN_WARNING | |
245 | "ASoC: Failed to create codec debugfs directory\n"); | |
246 | return; | |
247 | } | |
248 | ||
249 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
250 | codec->debugfs_codec_root, | |
251 | codec, &codec_reg_fops); | |
252 | if (!codec->debugfs_reg) | |
253 | printk(KERN_WARNING | |
254 | "ASoC: Failed to create codec register debugfs file\n"); | |
255 | ||
708fafb3 | 256 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, |
2624d5fa | 257 | codec->debugfs_codec_root, |
ce6120cc | 258 | &codec->dapm.pop_time); |
2624d5fa MB |
259 | if (!codec->debugfs_pop_time) |
260 | printk(KERN_WARNING | |
261 | "Failed to create pop time debugfs file\n"); | |
262 | ||
ce6120cc | 263 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 264 | codec->debugfs_codec_root); |
ce6120cc | 265 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
266 | printk(KERN_WARNING |
267 | "Failed to create DAPM debugfs directory\n"); | |
268 | ||
ce6120cc | 269 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
270 | } |
271 | ||
272 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
273 | { | |
274 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
275 | } | |
276 | ||
c3c5a19a MB |
277 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
278 | size_t count, loff_t *ppos) | |
279 | { | |
280 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 281 | ssize_t len, ret = 0; |
c3c5a19a MB |
282 | struct snd_soc_codec *codec; |
283 | ||
284 | if (!buf) | |
285 | return -ENOMEM; | |
286 | ||
2b194f9d MB |
287 | list_for_each_entry(codec, &codec_list, list) { |
288 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
289 | codec->name); | |
290 | if (len >= 0) | |
291 | ret += len; | |
292 | if (ret > PAGE_SIZE) { | |
293 | ret = PAGE_SIZE; | |
294 | break; | |
295 | } | |
296 | } | |
c3c5a19a MB |
297 | |
298 | if (ret >= 0) | |
299 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
300 | ||
301 | kfree(buf); | |
302 | ||
303 | return ret; | |
304 | } | |
305 | ||
306 | static const struct file_operations codec_list_fops = { | |
307 | .read = codec_list_read_file, | |
308 | .llseek = default_llseek,/* read accesses f_pos */ | |
309 | }; | |
310 | ||
f3208780 MB |
311 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
312 | size_t count, loff_t *ppos) | |
313 | { | |
314 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 315 | ssize_t len, ret = 0; |
f3208780 MB |
316 | struct snd_soc_dai *dai; |
317 | ||
318 | if (!buf) | |
319 | return -ENOMEM; | |
320 | ||
2b194f9d MB |
321 | list_for_each_entry(dai, &dai_list, list) { |
322 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
323 | if (len >= 0) | |
324 | ret += len; | |
325 | if (ret > PAGE_SIZE) { | |
326 | ret = PAGE_SIZE; | |
327 | break; | |
328 | } | |
329 | } | |
f3208780 | 330 | |
2b194f9d | 331 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
332 | |
333 | kfree(buf); | |
334 | ||
335 | return ret; | |
336 | } | |
337 | ||
338 | static const struct file_operations dai_list_fops = { | |
339 | .read = dai_list_read_file, | |
340 | .llseek = default_llseek,/* read accesses f_pos */ | |
341 | }; | |
342 | ||
19c7ac27 MB |
343 | static ssize_t platform_list_read_file(struct file *file, |
344 | char __user *user_buf, | |
345 | size_t count, loff_t *ppos) | |
346 | { | |
347 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 348 | ssize_t len, ret = 0; |
19c7ac27 MB |
349 | struct snd_soc_platform *platform; |
350 | ||
351 | if (!buf) | |
352 | return -ENOMEM; | |
353 | ||
2b194f9d MB |
354 | list_for_each_entry(platform, &platform_list, list) { |
355 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
356 | platform->name); | |
357 | if (len >= 0) | |
358 | ret += len; | |
359 | if (ret > PAGE_SIZE) { | |
360 | ret = PAGE_SIZE; | |
361 | break; | |
362 | } | |
363 | } | |
19c7ac27 | 364 | |
2b194f9d | 365 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
366 | |
367 | kfree(buf); | |
368 | ||
369 | return ret; | |
370 | } | |
371 | ||
372 | static const struct file_operations platform_list_fops = { | |
373 | .read = platform_list_read_file, | |
374 | .llseek = default_llseek,/* read accesses f_pos */ | |
375 | }; | |
376 | ||
a6052154 JN |
377 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
378 | { | |
379 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
380 | debugfs_root); | |
381 | if (!card->debugfs_card_root) | |
382 | dev_warn(card->dev, | |
383 | "ASoC: Failed to create codec debugfs directory\n"); | |
384 | } | |
385 | ||
386 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
387 | { | |
388 | debugfs_remove_recursive(card->debugfs_card_root); | |
389 | } | |
390 | ||
2624d5fa MB |
391 | #else |
392 | ||
393 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
394 | { | |
395 | } | |
396 | ||
397 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
398 | { | |
399 | } | |
400 | #endif | |
401 | ||
db2a4165 FM |
402 | #ifdef CONFIG_SND_SOC_AC97_BUS |
403 | /* unregister ac97 codec */ | |
404 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
405 | { | |
406 | if (codec->ac97->dev.bus) | |
407 | device_unregister(&codec->ac97->dev); | |
408 | return 0; | |
409 | } | |
410 | ||
411 | /* stop no dev release warning */ | |
412 | static void soc_ac97_device_release(struct device *dev){} | |
413 | ||
414 | /* register ac97 codec to bus */ | |
415 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
416 | { | |
417 | int err; | |
418 | ||
419 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 420 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
421 | codec->ac97->dev.release = soc_ac97_device_release; |
422 | ||
bb072bf0 | 423 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 424 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
425 | err = device_register(&codec->ac97->dev); |
426 | if (err < 0) { | |
427 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
428 | codec->ac97->dev.bus = NULL; | |
429 | return err; | |
430 | } | |
431 | return 0; | |
432 | } | |
433 | #endif | |
434 | ||
06f409d7 MB |
435 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
436 | { | |
437 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
438 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
439 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
440 | int ret; |
441 | ||
f0fba2ad LG |
442 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
443 | rtd->dai_link->symmetric_rates) { | |
444 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
445 | rtd->rate); | |
06f409d7 MB |
446 | |
447 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
448 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
449 | rtd->rate, |
450 | rtd->rate); | |
06f409d7 | 451 | if (ret < 0) { |
f0fba2ad | 452 | dev_err(&rtd->dev, |
06f409d7 MB |
453 | "Unable to apply rate symmetry constraint: %d\n", ret); |
454 | return ret; | |
455 | } | |
456 | } | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
db2a4165 FM |
461 | /* |
462 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
463 | * then initialized and any private data can be allocated. This also calls | |
464 | * startup for the cpu DAI, platform, machine and codec DAI. | |
465 | */ | |
466 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
467 | { | |
468 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 469 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
470 | struct snd_soc_platform *platform = rtd->platform; |
471 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
472 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
473 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
474 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
475 | int ret = 0; |
476 | ||
477 | mutex_lock(&pcm_mutex); | |
478 | ||
479 | /* startup the audio subsystem */ | |
f0fba2ad LG |
480 | if (cpu_dai->driver->ops->startup) { |
481 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
482 | if (ret < 0) { |
483 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 484 | cpu_dai->name); |
db2a4165 FM |
485 | goto out; |
486 | } | |
487 | } | |
488 | ||
f0fba2ad LG |
489 | if (platform->driver->ops->open) { |
490 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
491 | if (ret < 0) { |
492 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
493 | goto platform_err; | |
494 | } | |
495 | } | |
496 | ||
f0fba2ad LG |
497 | if (codec_dai->driver->ops->startup) { |
498 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 499 | if (ret < 0) { |
cb666e5b LG |
500 | printk(KERN_ERR "asoc: can't open codec %s\n", |
501 | codec_dai->name); | |
502 | goto codec_dai_err; | |
db2a4165 FM |
503 | } |
504 | } | |
505 | ||
f0fba2ad LG |
506 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
507 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 508 | if (ret < 0) { |
f0fba2ad | 509 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 510 | goto machine_err; |
db2a4165 FM |
511 | } |
512 | } | |
513 | ||
db2a4165 FM |
514 | /* Check that the codec and cpu DAI's are compatible */ |
515 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
516 | runtime->hw.rate_min = | |
f0fba2ad LG |
517 | max(codec_dai_drv->playback.rate_min, |
518 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 519 | runtime->hw.rate_max = |
f0fba2ad LG |
520 | min(codec_dai_drv->playback.rate_max, |
521 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 522 | runtime->hw.channels_min = |
f0fba2ad LG |
523 | max(codec_dai_drv->playback.channels_min, |
524 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 525 | runtime->hw.channels_max = |
f0fba2ad LG |
526 | min(codec_dai_drv->playback.channels_max, |
527 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 528 | runtime->hw.formats = |
f0fba2ad | 529 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 530 | runtime->hw.rates = |
f0fba2ad LG |
531 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
532 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 533 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
534 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
535 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 536 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 537 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
538 | } else { |
539 | runtime->hw.rate_min = | |
f0fba2ad LG |
540 | max(codec_dai_drv->capture.rate_min, |
541 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 542 | runtime->hw.rate_max = |
f0fba2ad LG |
543 | min(codec_dai_drv->capture.rate_max, |
544 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 545 | runtime->hw.channels_min = |
f0fba2ad LG |
546 | max(codec_dai_drv->capture.channels_min, |
547 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 548 | runtime->hw.channels_max = |
f0fba2ad LG |
549 | min(codec_dai_drv->capture.channels_max, |
550 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 551 | runtime->hw.formats = |
f0fba2ad | 552 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 553 | runtime->hw.rates = |
f0fba2ad LG |
554 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
555 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 556 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
557 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
558 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 559 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 560 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
561 | } |
562 | ||
563 | snd_pcm_limit_hw_rates(runtime); | |
564 | if (!runtime->hw.rates) { | |
565 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 566 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 567 | goto config_err; |
db2a4165 FM |
568 | } |
569 | if (!runtime->hw.formats) { | |
570 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 571 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 572 | goto config_err; |
db2a4165 FM |
573 | } |
574 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
575 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 576 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 577 | goto config_err; |
db2a4165 FM |
578 | } |
579 | ||
06f409d7 MB |
580 | /* Symmetry only applies if we've already got an active stream. */ |
581 | if (cpu_dai->active || codec_dai->active) { | |
582 | ret = soc_pcm_apply_symmetry(substream); | |
583 | if (ret != 0) | |
bb1c0478 | 584 | goto config_err; |
06f409d7 MB |
585 | } |
586 | ||
f0fba2ad LG |
587 | pr_debug("asoc: %s <-> %s info:\n", |
588 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
589 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
590 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
591 | runtime->hw.channels_max); | |
592 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
593 | runtime->hw.rate_max); | |
db2a4165 | 594 | |
14dc5734 | 595 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
596 | cpu_dai->playback_active++; |
597 | codec_dai->playback_active++; | |
14dc5734 | 598 | } else { |
f0fba2ad LG |
599 | cpu_dai->capture_active++; |
600 | codec_dai->capture_active++; | |
14dc5734 JB |
601 | } |
602 | cpu_dai->active++; | |
603 | codec_dai->active++; | |
f0fba2ad | 604 | rtd->codec->active++; |
db2a4165 FM |
605 | mutex_unlock(&pcm_mutex); |
606 | return 0; | |
607 | ||
bb1c0478 | 608 | config_err: |
f0fba2ad LG |
609 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
610 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 611 | |
bb1c0478 | 612 | machine_err: |
f0fba2ad LG |
613 | if (codec_dai->driver->ops->shutdown) |
614 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 615 | |
cb666e5b | 616 | codec_dai_err: |
f0fba2ad LG |
617 | if (platform->driver->ops->close) |
618 | platform->driver->ops->close(substream); | |
db2a4165 FM |
619 | |
620 | platform_err: | |
f0fba2ad LG |
621 | if (cpu_dai->driver->ops->shutdown) |
622 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
623 | out: |
624 | mutex_unlock(&pcm_mutex); | |
625 | return ret; | |
626 | } | |
627 | ||
628 | /* | |
3a4fa0a2 | 629 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
630 | * This is to ensure there are no pops or clicks in between any music tracks |
631 | * due to DAPM power cycling. | |
632 | */ | |
4484bb2e | 633 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 634 | { |
f0fba2ad LG |
635 | struct snd_soc_pcm_runtime *rtd = |
636 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
637 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
638 | |
639 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
640 | |
641 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
642 | codec_dai->driver->playback.stream_name, | |
643 | codec_dai->playback_active ? "active" : "inactive", | |
644 | codec_dai->pop_wait ? "yes" : "no"); | |
645 | ||
646 | /* are we waiting on this codec DAI stream */ | |
647 | if (codec_dai->pop_wait == 1) { | |
648 | codec_dai->pop_wait = 0; | |
649 | snd_soc_dapm_stream_event(rtd, | |
650 | codec_dai->driver->playback.stream_name, | |
651 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 652 | } |
f0fba2ad | 653 | |
db2a4165 FM |
654 | mutex_unlock(&pcm_mutex); |
655 | } | |
656 | ||
657 | /* | |
658 | * Called by ALSA when a PCM substream is closed. Private data can be | |
659 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
660 | * shutdown. | |
661 | */ | |
662 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
663 | { | |
664 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
665 | struct snd_soc_platform *platform = rtd->platform; |
666 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
667 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
668 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
669 | |
670 | mutex_lock(&pcm_mutex); | |
671 | ||
14dc5734 | 672 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
673 | cpu_dai->playback_active--; |
674 | codec_dai->playback_active--; | |
14dc5734 | 675 | } else { |
f0fba2ad LG |
676 | cpu_dai->capture_active--; |
677 | codec_dai->capture_active--; | |
db2a4165 | 678 | } |
14dc5734 JB |
679 | |
680 | cpu_dai->active--; | |
681 | codec_dai->active--; | |
db2a4165 FM |
682 | codec->active--; |
683 | ||
6010b2da MB |
684 | /* Muting the DAC suppresses artifacts caused during digital |
685 | * shutdown, for example from stopping clocks. | |
686 | */ | |
687 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
688 | snd_soc_dai_digital_mute(codec_dai, 1); | |
689 | ||
f0fba2ad LG |
690 | if (cpu_dai->driver->ops->shutdown) |
691 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 692 | |
f0fba2ad LG |
693 | if (codec_dai->driver->ops->shutdown) |
694 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 695 | |
f0fba2ad LG |
696 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
697 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 698 | |
f0fba2ad LG |
699 | if (platform->driver->ops->close) |
700 | platform->driver->ops->close(substream); | |
701 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
702 | |
703 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
704 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 705 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
706 | schedule_delayed_work(&rtd->delayed_work, |
707 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
708 | } else { |
709 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
710 | snd_soc_dapm_stream_event(rtd, |
711 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 712 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
713 | } |
714 | ||
715 | mutex_unlock(&pcm_mutex); | |
716 | return 0; | |
717 | } | |
718 | ||
719 | /* | |
720 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
721 | * rate, etc. This function is non atomic and can be called multiple times, | |
722 | * it can refer to the runtime info. | |
723 | */ | |
724 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
725 | { | |
726 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
727 | struct snd_soc_platform *platform = rtd->platform; |
728 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
729 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
730 | int ret = 0; |
731 | ||
732 | mutex_lock(&pcm_mutex); | |
cb666e5b | 733 | |
f0fba2ad LG |
734 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
735 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
736 | if (ret < 0) { |
737 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
738 | goto out; | |
739 | } | |
740 | } | |
741 | ||
f0fba2ad LG |
742 | if (platform->driver->ops->prepare) { |
743 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
744 | if (ret < 0) { |
745 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 746 | goto out; |
a71a468a | 747 | } |
db2a4165 FM |
748 | } |
749 | ||
f0fba2ad LG |
750 | if (codec_dai->driver->ops->prepare) { |
751 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
752 | if (ret < 0) { |
753 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 754 | goto out; |
a71a468a | 755 | } |
db2a4165 FM |
756 | } |
757 | ||
f0fba2ad LG |
758 | if (cpu_dai->driver->ops->prepare) { |
759 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
760 | if (ret < 0) { |
761 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
762 | goto out; | |
763 | } | |
764 | } | |
db2a4165 | 765 | |
d45f6219 MB |
766 | /* cancel any delayed stream shutdown that is pending */ |
767 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
768 | codec_dai->pop_wait) { | |
769 | codec_dai->pop_wait = 0; | |
f0fba2ad | 770 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 771 | } |
db2a4165 | 772 | |
452c5eaa | 773 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
774 | snd_soc_dapm_stream_event(rtd, |
775 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
776 | SND_SOC_DAPM_STREAM_START); |
777 | else | |
f0fba2ad LG |
778 | snd_soc_dapm_stream_event(rtd, |
779 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 780 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 781 | |
452c5eaa | 782 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
783 | |
784 | out: | |
785 | mutex_unlock(&pcm_mutex); | |
786 | return ret; | |
787 | } | |
788 | ||
789 | /* | |
790 | * Called by ALSA when the hardware params are set by application. This | |
791 | * function can also be called multiple times and can allocate buffers | |
792 | * (using snd_pcm_lib_* ). It's non-atomic. | |
793 | */ | |
794 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
795 | struct snd_pcm_hw_params *params) | |
796 | { | |
797 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
798 | struct snd_soc_platform *platform = rtd->platform; |
799 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
800 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
801 | int ret = 0; |
802 | ||
803 | mutex_lock(&pcm_mutex); | |
804 | ||
f0fba2ad LG |
805 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
806 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
807 | if (ret < 0) { |
808 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 809 | goto out; |
cb666e5b | 810 | } |
db2a4165 FM |
811 | } |
812 | ||
f0fba2ad LG |
813 | if (codec_dai->driver->ops->hw_params) { |
814 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
815 | if (ret < 0) { |
816 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
817 | codec_dai->name); |
818 | goto codec_err; | |
db2a4165 FM |
819 | } |
820 | } | |
821 | ||
f0fba2ad LG |
822 | if (cpu_dai->driver->ops->hw_params) { |
823 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 824 | if (ret < 0) { |
3ff3f64b | 825 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 826 | cpu_dai->name); |
db2a4165 FM |
827 | goto interface_err; |
828 | } | |
829 | } | |
830 | ||
f0fba2ad LG |
831 | if (platform->driver->ops->hw_params) { |
832 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 833 | if (ret < 0) { |
3ff3f64b | 834 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
835 | platform->name); |
836 | goto platform_err; | |
837 | } | |
838 | } | |
839 | ||
f0fba2ad | 840 | rtd->rate = params_rate(params); |
06f409d7 | 841 | |
db2a4165 FM |
842 | out: |
843 | mutex_unlock(&pcm_mutex); | |
844 | return ret; | |
845 | ||
db2a4165 | 846 | platform_err: |
f0fba2ad LG |
847 | if (cpu_dai->driver->ops->hw_free) |
848 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
849 | |
850 | interface_err: | |
f0fba2ad LG |
851 | if (codec_dai->driver->ops->hw_free) |
852 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
853 | |
854 | codec_err: | |
f0fba2ad LG |
855 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
856 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
857 | |
858 | mutex_unlock(&pcm_mutex); | |
859 | return ret; | |
860 | } | |
861 | ||
862 | /* | |
863 | * Free's resources allocated by hw_params, can be called multiple times | |
864 | */ | |
865 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
866 | { | |
867 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
868 | struct snd_soc_platform *platform = rtd->platform; |
869 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
870 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
871 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
872 | |
873 | mutex_lock(&pcm_mutex); | |
874 | ||
875 | /* apply codec digital mute */ | |
8c6529db LG |
876 | if (!codec->active) |
877 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
878 | |
879 | /* free any machine hw params */ | |
f0fba2ad LG |
880 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
881 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
882 | |
883 | /* free any DMA resources */ | |
f0fba2ad LG |
884 | if (platform->driver->ops->hw_free) |
885 | platform->driver->ops->hw_free(substream); | |
db2a4165 FM |
886 | |
887 | /* now free hw params for the DAI's */ | |
f0fba2ad LG |
888 | if (codec_dai->driver->ops->hw_free) |
889 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 890 | |
f0fba2ad LG |
891 | if (cpu_dai->driver->ops->hw_free) |
892 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
893 | |
894 | mutex_unlock(&pcm_mutex); | |
895 | return 0; | |
896 | } | |
897 | ||
898 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
899 | { | |
900 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
901 | struct snd_soc_platform *platform = rtd->platform; |
902 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
903 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
904 | int ret; |
905 | ||
f0fba2ad LG |
906 | if (codec_dai->driver->ops->trigger) { |
907 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
908 | if (ret < 0) |
909 | return ret; | |
910 | } | |
911 | ||
f0fba2ad LG |
912 | if (platform->driver->ops->trigger) { |
913 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
914 | if (ret < 0) |
915 | return ret; | |
916 | } | |
917 | ||
f0fba2ad LG |
918 | if (cpu_dai->driver->ops->trigger) { |
919 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
920 | if (ret < 0) |
921 | return ret; | |
922 | } | |
923 | return 0; | |
924 | } | |
925 | ||
377b6f62 PU |
926 | /* |
927 | * soc level wrapper for pointer callback | |
258020d0 PU |
928 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
929 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
930 | */ |
931 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
932 | { | |
933 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
934 | struct snd_soc_platform *platform = rtd->platform; |
935 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
936 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 937 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 938 | snd_pcm_uframes_t offset = 0; |
258020d0 | 939 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 940 | |
f0fba2ad LG |
941 | if (platform->driver->ops->pointer) |
942 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 943 | |
f0fba2ad LG |
944 | if (cpu_dai->driver->ops->delay) |
945 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 946 | |
f0fba2ad LG |
947 | if (codec_dai->driver->ops->delay) |
948 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 949 | |
f0fba2ad LG |
950 | if (platform->driver->delay) |
951 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
952 | |
953 | runtime->delay = delay; | |
954 | ||
377b6f62 PU |
955 | return offset; |
956 | } | |
957 | ||
db2a4165 FM |
958 | /* ASoC PCM operations */ |
959 | static struct snd_pcm_ops soc_pcm_ops = { | |
960 | .open = soc_pcm_open, | |
961 | .close = soc_codec_close, | |
962 | .hw_params = soc_pcm_hw_params, | |
963 | .hw_free = soc_pcm_hw_free, | |
964 | .prepare = soc_pcm_prepare, | |
965 | .trigger = soc_pcm_trigger, | |
377b6f62 | 966 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
967 | }; |
968 | ||
969 | #ifdef CONFIG_PM | |
970 | /* powers down audio subsystem for suspend */ | |
416356fc | 971 | static int soc_suspend(struct device *dev) |
db2a4165 | 972 | { |
416356fc | 973 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 974 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 FM |
975 | int i; |
976 | ||
e3509ff0 DM |
977 | /* If the initialization of this soc device failed, there is no codec |
978 | * associated with it. Just bail out in this case. | |
979 | */ | |
f0fba2ad | 980 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
981 | return 0; |
982 | ||
6ed25978 AG |
983 | /* Due to the resume being scheduled into a workqueue we could |
984 | * suspend before that's finished - wait for it to complete. | |
985 | */ | |
f0fba2ad LG |
986 | snd_power_lock(card->snd_card); |
987 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
988 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
989 | |
990 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 991 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 992 | |
db2a4165 | 993 | /* mute any active DAC's */ |
f0fba2ad LG |
994 | for (i = 0; i < card->num_rtd; i++) { |
995 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
996 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 997 | |
f0fba2ad | 998 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
999 | continue; |
1000 | ||
f0fba2ad LG |
1001 | if (drv->ops->digital_mute && dai->playback_active) |
1002 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1003 | } |
1004 | ||
4ccab3e7 | 1005 | /* suspend all pcms */ |
f0fba2ad LG |
1006 | for (i = 0; i < card->num_rtd; i++) { |
1007 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1008 | continue; |
1009 | ||
f0fba2ad | 1010 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1011 | } |
4ccab3e7 | 1012 | |
87506549 | 1013 | if (card->suspend_pre) |
416356fc | 1014 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 1015 | |
f0fba2ad LG |
1016 | for (i = 0; i < card->num_rtd; i++) { |
1017 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1018 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1019 | |
f0fba2ad | 1020 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1021 | continue; |
1022 | ||
f0fba2ad LG |
1023 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1024 | cpu_dai->driver->suspend(cpu_dai); | |
1025 | if (platform->driver->suspend && !platform->suspended) { | |
1026 | platform->driver->suspend(cpu_dai); | |
1027 | platform->suspended = 1; | |
1028 | } | |
db2a4165 FM |
1029 | } |
1030 | ||
1031 | /* close any waiting streams and save state */ | |
f0fba2ad LG |
1032 | for (i = 0; i < card->num_rtd; i++) { |
1033 | run_delayed_work(&card->rtd[i].delayed_work); | |
ce6120cc | 1034 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1035 | } |
db2a4165 | 1036 | |
f0fba2ad LG |
1037 | for (i = 0; i < card->num_rtd; i++) { |
1038 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1039 | |
f0fba2ad | 1040 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1041 | continue; |
1042 | ||
f0fba2ad LG |
1043 | if (driver->playback.stream_name != NULL) |
1044 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1045 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1046 | |
1047 | if (driver->capture.stream_name != NULL) | |
1048 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1049 | SND_SOC_DAPM_STREAM_SUSPEND); |
1050 | } | |
1051 | ||
f0fba2ad LG |
1052 | /* suspend all CODECs */ |
1053 | for (i = 0; i < card->num_rtd; i++) { | |
1054 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1055 | /* If there are paths active then the CODEC will be held with | |
1056 | * bias _ON and should not be suspended. */ | |
1057 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1058 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1059 | case SND_SOC_BIAS_STANDBY: |
1060 | case SND_SOC_BIAS_OFF: | |
1061 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1062 | codec->suspended = 1; | |
1063 | break; | |
1064 | default: | |
1065 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1066 | break; | |
1067 | } | |
1547aba9 MB |
1068 | } |
1069 | } | |
db2a4165 | 1070 | |
f0fba2ad LG |
1071 | for (i = 0; i < card->num_rtd; i++) { |
1072 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1073 | |
f0fba2ad | 1074 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1075 | continue; |
1076 | ||
f0fba2ad LG |
1077 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1078 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1079 | } |
1080 | ||
87506549 | 1081 | if (card->suspend_post) |
416356fc | 1082 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1083 | |
1084 | return 0; | |
1085 | } | |
1086 | ||
6ed25978 AG |
1087 | /* deferred resume work, so resume can complete before we finished |
1088 | * setting our codec back up, which can be very slow on I2C | |
1089 | */ | |
1090 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1091 | { |
f0fba2ad LG |
1092 | struct snd_soc_card *card = |
1093 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1094 | struct platform_device *pdev = to_platform_device(card->dev); | |
db2a4165 FM |
1095 | int i; |
1096 | ||
6ed25978 AG |
1097 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1098 | * so userspace apps are blocked from touching us | |
1099 | */ | |
1100 | ||
f0fba2ad | 1101 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1102 | |
9949788b | 1103 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1104 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1105 | |
87506549 MB |
1106 | if (card->resume_pre) |
1107 | card->resume_pre(pdev); | |
db2a4165 | 1108 | |
f0fba2ad LG |
1109 | /* resume AC97 DAIs */ |
1110 | for (i = 0; i < card->num_rtd; i++) { | |
1111 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1112 | |
f0fba2ad | 1113 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1114 | continue; |
1115 | ||
f0fba2ad LG |
1116 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1117 | cpu_dai->driver->resume(cpu_dai); | |
1118 | } | |
1119 | ||
1120 | for (i = 0; i < card->num_rtd; i++) { | |
1121 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1122 | /* If the CODEC was idle over suspend then it will have been | |
1123 | * left with bias OFF or STANDBY and suspended so we must now | |
1124 | * resume. Otherwise the suspend was suppressed. | |
1125 | */ | |
1126 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1127 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1128 | case SND_SOC_BIAS_STANDBY: |
1129 | case SND_SOC_BIAS_OFF: | |
1130 | codec->driver->resume(codec); | |
1131 | codec->suspended = 0; | |
1132 | break; | |
1133 | default: | |
1134 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1135 | break; | |
1136 | } | |
1547aba9 MB |
1137 | } |
1138 | } | |
db2a4165 | 1139 | |
f0fba2ad LG |
1140 | for (i = 0; i < card->num_rtd; i++) { |
1141 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1142 | |
f0fba2ad | 1143 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1144 | continue; |
1145 | ||
f0fba2ad LG |
1146 | if (driver->playback.stream_name != NULL) |
1147 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1148 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1149 | |
1150 | if (driver->capture.stream_name != NULL) | |
1151 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1152 | SND_SOC_DAPM_STREAM_RESUME); |
1153 | } | |
1154 | ||
3ff3f64b | 1155 | /* unmute any active DACs */ |
f0fba2ad LG |
1156 | for (i = 0; i < card->num_rtd; i++) { |
1157 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1158 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1159 | |
f0fba2ad | 1160 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1161 | continue; |
1162 | ||
f0fba2ad LG |
1163 | if (drv->ops->digital_mute && dai->playback_active) |
1164 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1165 | } |
1166 | ||
f0fba2ad LG |
1167 | for (i = 0; i < card->num_rtd; i++) { |
1168 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1169 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1170 | |
f0fba2ad | 1171 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1172 | continue; |
1173 | ||
f0fba2ad LG |
1174 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1175 | cpu_dai->driver->resume(cpu_dai); | |
1176 | if (platform->driver->resume && platform->suspended) { | |
1177 | platform->driver->resume(cpu_dai); | |
1178 | platform->suspended = 0; | |
1179 | } | |
db2a4165 FM |
1180 | } |
1181 | ||
87506549 MB |
1182 | if (card->resume_post) |
1183 | card->resume_post(pdev); | |
db2a4165 | 1184 | |
f0fba2ad | 1185 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1186 | |
1187 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1188 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1189 | } |
1190 | ||
1191 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1192 | static int soc_resume(struct device *dev) |
6ed25978 | 1193 | { |
416356fc | 1194 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1195 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1196 | int i; | |
b9dd94a8 | 1197 | |
64ab9baa MB |
1198 | /* AC97 devices might have other drivers hanging off them so |
1199 | * need to resume immediately. Other drivers don't have that | |
1200 | * problem and may take a substantial amount of time to resume | |
1201 | * due to I/O costs and anti-pop so handle them out of line. | |
1202 | */ | |
f0fba2ad LG |
1203 | for (i = 0; i < card->num_rtd; i++) { |
1204 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1205 | if (cpu_dai->driver->ac97_control) { | |
1206 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1207 | soc_resume_deferred(&card->deferred_resume_work); | |
1208 | } else { | |
1209 | dev_dbg(dev, "Scheduling resume work\n"); | |
1210 | if (!schedule_work(&card->deferred_resume_work)) | |
1211 | dev_err(dev, "resume work item may be lost\n"); | |
1212 | } | |
64ab9baa | 1213 | } |
6ed25978 | 1214 | |
db2a4165 FM |
1215 | return 0; |
1216 | } | |
db2a4165 FM |
1217 | #else |
1218 | #define soc_suspend NULL | |
1219 | #define soc_resume NULL | |
1220 | #endif | |
1221 | ||
02a06d30 BS |
1222 | static struct snd_soc_dai_ops null_dai_ops = { |
1223 | }; | |
1224 | ||
f0fba2ad | 1225 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1226 | { |
f0fba2ad LG |
1227 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1228 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1229 | struct snd_soc_codec *codec; |
435c5e25 | 1230 | struct snd_soc_platform *platform; |
f0fba2ad | 1231 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1232 | |
f0fba2ad LG |
1233 | if (rtd->complete) |
1234 | return 1; | |
1235 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1236 | |
f0fba2ad LG |
1237 | /* do we already have the CPU DAI for this link ? */ |
1238 | if (rtd->cpu_dai) { | |
1239 | goto find_codec; | |
1240 | } | |
1241 | /* no, then find CPU DAI from registered DAIs*/ | |
1242 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1243 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1244 | ||
1245 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1246 | return -ENODEV; | |
1247 | ||
1248 | rtd->cpu_dai = cpu_dai; | |
1249 | goto find_codec; | |
435c5e25 | 1250 | } |
435c5e25 | 1251 | } |
f0fba2ad LG |
1252 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1253 | dai_link->cpu_dai_name); | |
6308419a | 1254 | |
f0fba2ad LG |
1255 | find_codec: |
1256 | /* do we already have the CODEC for this link ? */ | |
1257 | if (rtd->codec) { | |
1258 | goto find_platform; | |
1259 | } | |
1260 | ||
1261 | /* no, then find CODEC from registered CODECs*/ | |
1262 | list_for_each_entry(codec, &codec_list, list) { | |
1263 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1264 | rtd->codec = codec; | |
1265 | ||
1266 | if (!try_module_get(codec->dev->driver->owner)) | |
1267 | return -ENODEV; | |
1268 | ||
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)) { | |
c5af3a2e | 1294 | |
f0fba2ad LG |
1295 | if (!try_module_get(platform->dev->driver->owner)) |
1296 | return -ENODEV; | |
1297 | ||
1298 | rtd->platform = platform; | |
1299 | goto out; | |
1300 | } | |
02a06d30 BS |
1301 | } |
1302 | ||
f0fba2ad LG |
1303 | dev_dbg(card->dev, "platform %s not registered\n", |
1304 | dai_link->platform_name); | |
1305 | return 0; | |
1306 | ||
1307 | out: | |
1308 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1309 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1310 | rtd->complete = 1; | |
1311 | card->num_rtd++; | |
1312 | } | |
1313 | return 1; | |
1314 | } | |
1315 | ||
1316 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) | |
1317 | { | |
1318 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1319 | struct snd_soc_codec *codec = rtd->codec; | |
1320 | struct snd_soc_platform *platform = rtd->platform; | |
1321 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1322 | int err; | |
1323 | ||
1324 | /* unregister the rtd device */ | |
1325 | if (rtd->dev_registered) { | |
1326 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
1327 | device_unregister(&rtd->dev); | |
1328 | rtd->dev_registered = 0; | |
1329 | } | |
1330 | ||
1331 | /* remove the CODEC DAI */ | |
1332 | if (codec_dai && codec_dai->probed) { | |
1333 | if (codec_dai->driver->remove) { | |
1334 | err = codec_dai->driver->remove(codec_dai); | |
1335 | if (err < 0) | |
1336 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1337 | } |
f0fba2ad LG |
1338 | codec_dai->probed = 0; |
1339 | list_del(&codec_dai->card_list); | |
1340 | } | |
6b05eda6 | 1341 | |
f0fba2ad LG |
1342 | /* remove the platform */ |
1343 | if (platform && platform->probed) { | |
1344 | if (platform->driver->remove) { | |
1345 | err = platform->driver->remove(platform); | |
1346 | if (err < 0) | |
1347 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1348 | } | |
1349 | platform->probed = 0; | |
1350 | list_del(&platform->card_list); | |
1351 | module_put(platform->dev->driver->owner); | |
1352 | } | |
435c5e25 | 1353 | |
f0fba2ad LG |
1354 | /* remove the CODEC */ |
1355 | if (codec && codec->probed) { | |
1356 | if (codec->driver->remove) { | |
1357 | err = codec->driver->remove(codec); | |
1358 | if (err < 0) | |
1359 | printk(KERN_ERR "asoc: failed to remove %s\n", codec->name); | |
1360 | } | |
435c5e25 | 1361 | |
f0fba2ad | 1362 | /* Make sure all DAPM widgets are freed */ |
ce6120cc | 1363 | snd_soc_dapm_free(&codec->dapm); |
96dd3622 | 1364 | |
f0fba2ad LG |
1365 | soc_cleanup_codec_debugfs(codec); |
1366 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1367 | codec->probed = 0; | |
1368 | list_del(&codec->card_list); | |
1369 | module_put(codec->dev->driver->owner); | |
db2a4165 FM |
1370 | } |
1371 | ||
f0fba2ad LG |
1372 | /* remove the cpu_dai */ |
1373 | if (cpu_dai && cpu_dai->probed) { | |
1374 | if (cpu_dai->driver->remove) { | |
1375 | err = cpu_dai->driver->remove(cpu_dai); | |
1376 | if (err < 0) | |
1377 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1378 | } |
f0fba2ad LG |
1379 | cpu_dai->probed = 0; |
1380 | list_del(&cpu_dai->card_list); | |
1381 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1382 | } |
f0fba2ad | 1383 | } |
db2a4165 | 1384 | |
f0fba2ad LG |
1385 | static void rtd_release(struct device *dev) {} |
1386 | ||
1387 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) | |
1388 | { | |
1389 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1390 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1391 | struct snd_soc_codec *codec = rtd->codec; | |
1392 | struct snd_soc_platform *platform = rtd->platform; | |
1393 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1394 | int ret; | |
1395 | ||
1396 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1397 | ||
1398 | /* config components */ | |
1399 | codec_dai->codec = codec; | |
1400 | codec->card = card; | |
1401 | cpu_dai->platform = platform; | |
1402 | rtd->card = card; | |
1403 | rtd->dev.parent = card->dev; | |
1404 | codec_dai->card = card; | |
1405 | cpu_dai->card = card; | |
1406 | ||
1407 | /* set default power off timeout */ | |
1408 | rtd->pmdown_time = pmdown_time; | |
1409 | ||
1410 | /* probe the cpu_dai */ | |
1411 | if (!cpu_dai->probed) { | |
1412 | if (cpu_dai->driver->probe) { | |
1413 | ret = cpu_dai->driver->probe(cpu_dai); | |
1414 | if (ret < 0) { | |
1415 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1416 | cpu_dai->name); | |
1417 | return ret; | |
1418 | } | |
1419 | } | |
1420 | cpu_dai->probed = 1; | |
1421 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1422 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1423 | } |
1424 | ||
f0fba2ad LG |
1425 | /* probe the CODEC */ |
1426 | if (!codec->probed) { | |
1427 | if (codec->driver->probe) { | |
1428 | ret = codec->driver->probe(codec); | |
1429 | if (ret < 0) { | |
1430 | printk(KERN_ERR "asoc: failed to probe CODEC %s\n", | |
1431 | codec->name); | |
1432 | return ret; | |
1433 | } | |
1434 | } | |
13cb61f8 MB |
1435 | |
1436 | soc_init_codec_debugfs(codec); | |
1437 | ||
f0fba2ad LG |
1438 | /* mark codec as probed and add to card codec list */ |
1439 | codec->probed = 1; | |
1440 | list_add(&codec->card_list, &card->codec_dev_list); | |
db2a4165 FM |
1441 | } |
1442 | ||
f0fba2ad LG |
1443 | /* probe the platform */ |
1444 | if (!platform->probed) { | |
1445 | if (platform->driver->probe) { | |
1446 | ret = platform->driver->probe(platform); | |
1447 | if (ret < 0) { | |
1448 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1449 | platform->name); | |
1450 | return ret; | |
1451 | } | |
1452 | } | |
1453 | /* mark platform as probed and add to card platform list */ | |
1454 | platform->probed = 1; | |
1455 | list_add(&platform->card_list, &card->platform_dev_list); | |
1456 | } | |
6ed25978 | 1457 | |
f0fba2ad LG |
1458 | /* probe the CODEC DAI */ |
1459 | if (!codec_dai->probed) { | |
1460 | if (codec_dai->driver->probe) { | |
1461 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1462 | if (ret < 0) { |
f0fba2ad LG |
1463 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1464 | codec_dai->name); | |
1465 | return ret; | |
fe3e78e0 MB |
1466 | } |
1467 | } | |
f0fba2ad LG |
1468 | |
1469 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1470 | codec_dai->probed = 1; | |
1471 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1472 | } |
1473 | ||
f0fba2ad LG |
1474 | /* DAPM dai link stream work */ |
1475 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1476 | ||
1477 | /* now that all clients have probed, initialise the DAI link */ | |
1478 | if (dai_link->init) { | |
1479 | ret = dai_link->init(rtd); | |
1480 | if (ret < 0) { | |
1481 | printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name); | |
1482 | return ret; | |
1483 | } | |
1484 | } | |
fe3e78e0 MB |
1485 | |
1486 | /* Make sure all DAPM widgets are instantiated */ | |
ce6120cc LG |
1487 | snd_soc_dapm_new_widgets(&codec->dapm); |
1488 | snd_soc_dapm_sync(&codec->dapm); | |
fe3e78e0 | 1489 | |
f0fba2ad | 1490 | /* register the rtd device */ |
f0fba2ad LG |
1491 | rtd->dev.release = rtd_release; |
1492 | rtd->dev.init_name = dai_link->name; | |
1493 | ret = device_register(&rtd->dev); | |
fe3e78e0 | 1494 | if (ret < 0) { |
f0fba2ad LG |
1495 | printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret); |
1496 | return ret; | |
fe3e78e0 MB |
1497 | } |
1498 | ||
f0fba2ad LG |
1499 | rtd->dev_registered = 1; |
1500 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); | |
1501 | if (ret < 0) | |
1502 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1503 | ||
1504 | /* add DAPM sysfs entries for this codec */ | |
1505 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1506 | if (ret < 0) | |
1507 | printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n"); | |
1508 | ||
1509 | /* add codec sysfs entries */ | |
1510 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1511 | if (ret < 0) | |
1512 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1513 | ||
f0fba2ad LG |
1514 | /* create the pcm */ |
1515 | ret = soc_new_pcm(rtd, num); | |
1516 | if (ret < 0) { | |
1517 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1518 | return ret; | |
1519 | } | |
1520 | ||
1521 | /* add platform data for AC97 devices */ | |
1522 | if (rtd->codec_dai->driver->ac97_control) | |
1523 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1524 | ||
1525 | return 0; | |
1526 | } | |
1527 | ||
fe3e78e0 | 1528 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1529 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1530 | { | |
1531 | int ret; | |
1532 | ||
fe3e78e0 MB |
1533 | /* Only instantiate AC97 if not already done by the adaptor |
1534 | * for the generic AC97 subsystem. | |
1535 | */ | |
f0fba2ad | 1536 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1537 | /* |
1538 | * It is possible that the AC97 device is already registered to | |
1539 | * the device subsystem. This happens when the device is created | |
1540 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1541 | * is the generic AC97 glue but others migh emerge. | |
1542 | * | |
1543 | * In those cases we don't try to register the device again. | |
1544 | */ | |
1545 | if (!rtd->codec->ac97_created) | |
1546 | return 0; | |
f0fba2ad LG |
1547 | |
1548 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1549 | if (ret < 0) { |
1550 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1551 | return ret; |
fe3e78e0 | 1552 | } |
f0fba2ad LG |
1553 | |
1554 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1555 | } |
f0fba2ad LG |
1556 | return 0; |
1557 | } | |
1558 | ||
1559 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1560 | { | |
1561 | if (codec->ac97_registered) { | |
1562 | soc_ac97_dev_unregister(codec); | |
1563 | codec->ac97_registered = 0; | |
1564 | } | |
1565 | } | |
fe3e78e0 MB |
1566 | #endif |
1567 | ||
f0fba2ad LG |
1568 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1569 | { | |
1570 | struct platform_device *pdev = to_platform_device(card->dev); | |
1571 | int ret, i; | |
fe3e78e0 | 1572 | |
f0fba2ad | 1573 | mutex_lock(&card->mutex); |
dbe21408 | 1574 | |
f0fba2ad LG |
1575 | if (card->instantiated) { |
1576 | mutex_unlock(&card->mutex); | |
1577 | return; | |
1578 | } | |
fe3e78e0 | 1579 | |
f0fba2ad LG |
1580 | /* bind DAIs */ |
1581 | for (i = 0; i < card->num_links; i++) | |
1582 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1583 | |
f0fba2ad LG |
1584 | /* bind completed ? */ |
1585 | if (card->num_rtd != card->num_links) { | |
1586 | mutex_unlock(&card->mutex); | |
1587 | return; | |
1588 | } | |
435c5e25 | 1589 | |
f0fba2ad LG |
1590 | /* card bind complete so register a sound card */ |
1591 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1592 | card->owner, 0, &card->snd_card); | |
1593 | if (ret < 0) { | |
1594 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1595 | card->name); | |
1596 | mutex_unlock(&card->mutex); | |
1597 | return; | |
1598 | } | |
1599 | card->snd_card->dev = card->dev; | |
1600 | ||
1601 | #ifdef CONFIG_PM | |
1602 | /* deferred resume work */ | |
1603 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1604 | #endif | |
db2a4165 | 1605 | |
f0fba2ad LG |
1606 | /* initialise the sound card only once */ |
1607 | if (card->probe) { | |
1608 | ret = card->probe(pdev); | |
1609 | if (ret < 0) | |
1610 | goto card_probe_error; | |
1611 | } | |
fe3e78e0 | 1612 | |
f0fba2ad LG |
1613 | for (i = 0; i < card->num_links; i++) { |
1614 | ret = soc_probe_dai_link(card, i); | |
1615 | if (ret < 0) { | |
321de0d0 MB |
1616 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1617 | card->name, ret); | |
f0fba2ad LG |
1618 | goto probe_dai_err; |
1619 | } | |
1620 | } | |
db2a4165 | 1621 | |
f0fba2ad LG |
1622 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1623 | "%s", card->name); | |
1624 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1625 | "%s", card->name); | |
1626 | ||
1627 | ret = snd_card_register(card->snd_card); | |
1628 | if (ret < 0) { | |
1629 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1630 | goto probe_dai_err; | |
db2a4165 FM |
1631 | } |
1632 | ||
f0fba2ad LG |
1633 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1634 | /* register any AC97 codecs */ | |
1635 | for (i = 0; i < card->num_rtd; i++) { | |
1636 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1637 | if (ret < 0) { | |
1638 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1639 | goto probe_dai_err; | |
1640 | } | |
1641 | } | |
1642 | #endif | |
1643 | ||
1644 | card->instantiated = 1; | |
1645 | mutex_unlock(&card->mutex); | |
1646 | return; | |
1647 | ||
1648 | probe_dai_err: | |
1649 | for (i = 0; i < card->num_links; i++) | |
1650 | soc_remove_dai_link(card, i); | |
1651 | ||
1652 | card_probe_error: | |
87506549 MB |
1653 | if (card->remove) |
1654 | card->remove(pdev); | |
f0fba2ad LG |
1655 | |
1656 | snd_card_free(card->snd_card); | |
1657 | ||
1658 | mutex_unlock(&card->mutex); | |
435c5e25 | 1659 | } |
db2a4165 | 1660 | |
435c5e25 | 1661 | /* |
421f91d2 | 1662 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1663 | * client_mutex. |
1664 | */ | |
1665 | static void snd_soc_instantiate_cards(void) | |
1666 | { | |
1667 | struct snd_soc_card *card; | |
1668 | list_for_each_entry(card, &card_list, list) | |
1669 | snd_soc_instantiate_card(card); | |
1670 | } | |
1671 | ||
1672 | /* probes a new socdev */ | |
1673 | static int soc_probe(struct platform_device *pdev) | |
1674 | { | |
f0fba2ad | 1675 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1676 | int ret = 0; |
435c5e25 MB |
1677 | |
1678 | /* Bodge while we unpick instantiation */ | |
1679 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1680 | INIT_LIST_HEAD(&card->dai_dev_list); |
1681 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1682 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1683 | ||
a6052154 JN |
1684 | soc_init_card_debugfs(card); |
1685 | ||
435c5e25 MB |
1686 | ret = snd_soc_register_card(card); |
1687 | if (ret != 0) { | |
1688 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1689 | return ret; | |
1690 | } | |
1691 | ||
1692 | return 0; | |
db2a4165 FM |
1693 | } |
1694 | ||
1695 | /* removes a socdev */ | |
1696 | static int soc_remove(struct platform_device *pdev) | |
1697 | { | |
f0fba2ad | 1698 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1699 | int i; |
db2a4165 | 1700 | |
f0fba2ad | 1701 | if (card->instantiated) { |
914dc182 | 1702 | |
f0fba2ad LG |
1703 | /* make sure any delayed work runs */ |
1704 | for (i = 0; i < card->num_rtd; i++) { | |
1705 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1706 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1707 | } |
db2a4165 | 1708 | |
f0fba2ad LG |
1709 | /* remove and free each DAI */ |
1710 | for (i = 0; i < card->num_rtd; i++) | |
1711 | soc_remove_dai_link(card, i); | |
1712 | ||
a6052154 JN |
1713 | soc_cleanup_card_debugfs(card); |
1714 | ||
f0fba2ad | 1715 | /* remove the card */ |
b2dfa62c GL |
1716 | if (card->remove) |
1717 | card->remove(pdev); | |
db2a4165 | 1718 | |
f0fba2ad LG |
1719 | kfree(card->rtd); |
1720 | snd_card_free(card->snd_card); | |
1721 | } | |
c5af3a2e | 1722 | snd_soc_unregister_card(card); |
db2a4165 FM |
1723 | return 0; |
1724 | } | |
1725 | ||
416356fc | 1726 | static int soc_poweroff(struct device *dev) |
51737470 | 1727 | { |
416356fc | 1728 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1729 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1730 | int i; | |
51737470 MB |
1731 | |
1732 | if (!card->instantiated) | |
416356fc | 1733 | return 0; |
51737470 MB |
1734 | |
1735 | /* Flush out pmdown_time work - we actually do want to run it | |
1736 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1737 | for (i = 0; i < card->num_rtd; i++) { |
1738 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1739 | run_delayed_work(&rtd->delayed_work); | |
1740 | } | |
51737470 | 1741 | |
f0fba2ad | 1742 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1743 | |
1744 | return 0; | |
51737470 MB |
1745 | } |
1746 | ||
47145210 | 1747 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1748 | .suspend = soc_suspend, |
1749 | .resume = soc_resume, | |
1750 | .poweroff = soc_poweroff, | |
1751 | }; | |
1752 | ||
db2a4165 FM |
1753 | /* ASoC platform driver */ |
1754 | static struct platform_driver soc_driver = { | |
1755 | .driver = { | |
1756 | .name = "soc-audio", | |
8b45a209 | 1757 | .owner = THIS_MODULE, |
416356fc | 1758 | .pm = &soc_pm_ops, |
db2a4165 FM |
1759 | }, |
1760 | .probe = soc_probe, | |
1761 | .remove = soc_remove, | |
db2a4165 FM |
1762 | }; |
1763 | ||
1764 | /* create a new pcm */ | |
f0fba2ad LG |
1765 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1766 | { | |
1767 | struct snd_soc_codec *codec = rtd->codec; | |
1768 | struct snd_soc_platform *platform = rtd->platform; | |
1769 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1770 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1771 | struct snd_pcm *pcm; |
1772 | char new_name[64]; | |
1773 | int ret = 0, playback = 0, capture = 0; | |
1774 | ||
db2a4165 | 1775 | /* check client and interface hw capabilities */ |
40ca1142 | 1776 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1777 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1778 | |
f0fba2ad | 1779 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1780 | playback = 1; |
f0fba2ad | 1781 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1782 | capture = 1; |
1783 | ||
f0fba2ad LG |
1784 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1785 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1786 | num, playback, capture, &pcm); | |
db2a4165 | 1787 | if (ret < 0) { |
f0fba2ad | 1788 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1789 | return ret; |
1790 | } | |
1791 | ||
f0fba2ad | 1792 | rtd->pcm = pcm; |
db2a4165 | 1793 | pcm->private_data = rtd; |
f0fba2ad LG |
1794 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1795 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1796 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1797 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1798 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1799 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1800 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1801 | |
1802 | if (playback) | |
1803 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1804 | ||
1805 | if (capture) | |
1806 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1807 | ||
f0fba2ad | 1808 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1809 | if (ret < 0) { |
1810 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1811 | return ret; |
1812 | } | |
1813 | ||
f0fba2ad | 1814 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1815 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1816 | cpu_dai->name); | |
1817 | return ret; | |
1818 | } | |
1819 | ||
096e49d5 MB |
1820 | /** |
1821 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1822 | * | |
1823 | * @codec: CODEC to query. | |
1824 | * @reg: Register to query. | |
1825 | * | |
1826 | * Boolean function indiciating if a CODEC register is volatile. | |
1827 | */ | |
1828 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1829 | { | |
f0fba2ad LG |
1830 | if (codec->driver->volatile_register) |
1831 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
1832 | else |
1833 | return 0; | |
1834 | } | |
1835 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1836 | ||
db2a4165 FM |
1837 | /** |
1838 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1839 | * @codec: audio codec | |
1840 | * @ops: AC97 bus operations | |
1841 | * @num: AC97 codec number | |
1842 | * | |
1843 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1844 | */ | |
1845 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1846 | struct snd_ac97_bus_ops *ops, int num) | |
1847 | { | |
1848 | mutex_lock(&codec->mutex); | |
1849 | ||
1850 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1851 | if (codec->ac97 == NULL) { | |
1852 | mutex_unlock(&codec->mutex); | |
1853 | return -ENOMEM; | |
1854 | } | |
1855 | ||
1856 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1857 | if (codec->ac97->bus == NULL) { | |
1858 | kfree(codec->ac97); | |
1859 | codec->ac97 = NULL; | |
1860 | mutex_unlock(&codec->mutex); | |
1861 | return -ENOMEM; | |
1862 | } | |
1863 | ||
1864 | codec->ac97->bus->ops = ops; | |
1865 | codec->ac97->num = num; | |
0562f788 MW |
1866 | |
1867 | /* | |
1868 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1869 | * device will be registered with the device subsystem later on. | |
1870 | */ | |
1871 | codec->ac97_created = 1; | |
1872 | ||
db2a4165 FM |
1873 | mutex_unlock(&codec->mutex); |
1874 | return 0; | |
1875 | } | |
1876 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1877 | ||
1878 | /** | |
1879 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1880 | * @codec: audio codec | |
1881 | * | |
1882 | * Frees AC97 codec device resources. | |
1883 | */ | |
1884 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1885 | { | |
1886 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1887 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1888 | soc_unregister_ac97_dai_link(codec); | |
1889 | #endif | |
db2a4165 FM |
1890 | kfree(codec->ac97->bus); |
1891 | kfree(codec->ac97); | |
1892 | codec->ac97 = NULL; | |
0562f788 | 1893 | codec->ac97_created = 0; |
db2a4165 FM |
1894 | mutex_unlock(&codec->mutex); |
1895 | } | |
1896 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1897 | ||
c3753707 MB |
1898 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1899 | { | |
1900 | unsigned int ret; | |
1901 | ||
1902 | ret = codec->driver->read(codec, reg); | |
1903 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); | |
1904 | ||
1905 | return ret; | |
1906 | } | |
1907 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1908 | ||
1909 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1910 | unsigned int reg, unsigned int val) | |
1911 | { | |
1912 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
1913 | return codec->driver->write(codec, reg, val); | |
1914 | } | |
1915 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1916 | ||
db2a4165 FM |
1917 | /** |
1918 | * snd_soc_update_bits - update codec register bits | |
1919 | * @codec: audio codec | |
1920 | * @reg: codec register | |
1921 | * @mask: register mask | |
1922 | * @value: new value | |
1923 | * | |
1924 | * Writes new register value. | |
1925 | * | |
1926 | * Returns 1 for change else 0. | |
1927 | */ | |
1928 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1929 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1930 | { |
1931 | int change; | |
46f5822f | 1932 | unsigned int old, new; |
db2a4165 | 1933 | |
db2a4165 FM |
1934 | old = snd_soc_read(codec, reg); |
1935 | new = (old & ~mask) | value; | |
1936 | change = old != new; | |
1937 | if (change) | |
1938 | snd_soc_write(codec, reg, new); | |
1939 | ||
db2a4165 FM |
1940 | return change; |
1941 | } | |
1942 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1943 | ||
6c508c62 EN |
1944 | /** |
1945 | * snd_soc_update_bits_locked - update codec register bits | |
1946 | * @codec: audio codec | |
1947 | * @reg: codec register | |
1948 | * @mask: register mask | |
1949 | * @value: new value | |
1950 | * | |
1951 | * Writes new register value, and takes the codec mutex. | |
1952 | * | |
1953 | * Returns 1 for change else 0. | |
1954 | */ | |
dd1b3d53 MB |
1955 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1956 | unsigned short reg, unsigned int mask, | |
1957 | unsigned int value) | |
6c508c62 EN |
1958 | { |
1959 | int change; | |
1960 | ||
1961 | mutex_lock(&codec->mutex); | |
1962 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1963 | mutex_unlock(&codec->mutex); | |
1964 | ||
1965 | return change; | |
1966 | } | |
dd1b3d53 | 1967 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1968 | |
db2a4165 FM |
1969 | /** |
1970 | * snd_soc_test_bits - test register for change | |
1971 | * @codec: audio codec | |
1972 | * @reg: codec register | |
1973 | * @mask: register mask | |
1974 | * @value: new value | |
1975 | * | |
1976 | * Tests a register with a new value and checks if the new value is | |
1977 | * different from the old value. | |
1978 | * | |
1979 | * Returns 1 for change else 0. | |
1980 | */ | |
1981 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1982 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1983 | { |
1984 | int change; | |
46f5822f | 1985 | unsigned int old, new; |
db2a4165 | 1986 | |
db2a4165 FM |
1987 | old = snd_soc_read(codec, reg); |
1988 | new = (old & ~mask) | value; | |
1989 | change = old != new; | |
db2a4165 FM |
1990 | |
1991 | return change; | |
1992 | } | |
1993 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1994 | ||
db2a4165 FM |
1995 | /** |
1996 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1997 | * @substream: the pcm substream | |
1998 | * @hw: the hardware parameters | |
1999 | * | |
2000 | * Sets the substream runtime hardware parameters. | |
2001 | */ | |
2002 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2003 | const struct snd_pcm_hardware *hw) | |
2004 | { | |
2005 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2006 | runtime->hw.info = hw->info; | |
2007 | runtime->hw.formats = hw->formats; | |
2008 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2009 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2010 | runtime->hw.periods_min = hw->periods_min; | |
2011 | runtime->hw.periods_max = hw->periods_max; | |
2012 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2013 | runtime->hw.fifo_size = hw->fifo_size; | |
2014 | return 0; | |
2015 | } | |
2016 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2017 | ||
2018 | /** | |
2019 | * snd_soc_cnew - create new control | |
2020 | * @_template: control template | |
2021 | * @data: control private data | |
ac11a2b3 | 2022 | * @long_name: control long name |
db2a4165 FM |
2023 | * |
2024 | * Create a new mixer control from a template control. | |
2025 | * | |
2026 | * Returns 0 for success, else error. | |
2027 | */ | |
2028 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2029 | void *data, char *long_name) | |
2030 | { | |
2031 | struct snd_kcontrol_new template; | |
2032 | ||
2033 | memcpy(&template, _template, sizeof(template)); | |
2034 | if (long_name) | |
2035 | template.name = long_name; | |
db2a4165 FM |
2036 | template.index = 0; |
2037 | ||
2038 | return snd_ctl_new1(&template, data); | |
2039 | } | |
2040 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2041 | ||
3e8e1952 IM |
2042 | /** |
2043 | * snd_soc_add_controls - add an array of controls to a codec. | |
2044 | * Convienience function to add a list of controls. Many codecs were | |
2045 | * duplicating this code. | |
2046 | * | |
2047 | * @codec: codec to add controls to | |
2048 | * @controls: array of controls to add | |
2049 | * @num_controls: number of elements in the array | |
2050 | * | |
2051 | * Return 0 for success, else error. | |
2052 | */ | |
2053 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2054 | const struct snd_kcontrol_new *controls, int num_controls) | |
2055 | { | |
f0fba2ad | 2056 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2057 | int err, i; |
2058 | ||
2059 | for (i = 0; i < num_controls; i++) { | |
2060 | const struct snd_kcontrol_new *control = &controls[i]; | |
2061 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
2062 | if (err < 0) { | |
082100dc MB |
2063 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
2064 | codec->name, control->name, err); | |
3e8e1952 IM |
2065 | return err; |
2066 | } | |
2067 | } | |
2068 | ||
2069 | return 0; | |
2070 | } | |
2071 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2072 | ||
db2a4165 FM |
2073 | /** |
2074 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2075 | * @kcontrol: mixer control | |
2076 | * @uinfo: control element information | |
2077 | * | |
2078 | * Callback to provide information about a double enumerated | |
2079 | * mixer control. | |
2080 | * | |
2081 | * Returns 0 for success. | |
2082 | */ | |
2083 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2084 | struct snd_ctl_elem_info *uinfo) | |
2085 | { | |
2086 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2087 | ||
2088 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2089 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2090 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2091 | |
f8ba0b7b JS |
2092 | if (uinfo->value.enumerated.item > e->max - 1) |
2093 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2094 | strcpy(uinfo->value.enumerated.name, |
2095 | e->texts[uinfo->value.enumerated.item]); | |
2096 | return 0; | |
2097 | } | |
2098 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2099 | ||
2100 | /** | |
2101 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2102 | * @kcontrol: mixer control | |
ac11a2b3 | 2103 | * @ucontrol: control element information |
db2a4165 FM |
2104 | * |
2105 | * Callback to get the value of a double enumerated mixer. | |
2106 | * | |
2107 | * Returns 0 for success. | |
2108 | */ | |
2109 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2110 | struct snd_ctl_elem_value *ucontrol) | |
2111 | { | |
2112 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2113 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2114 | unsigned int val, bitmask; |
db2a4165 | 2115 | |
f8ba0b7b | 2116 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2117 | ; |
2118 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2119 | ucontrol->value.enumerated.item[0] |
2120 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2121 | if (e->shift_l != e->shift_r) |
2122 | ucontrol->value.enumerated.item[1] = | |
2123 | (val >> e->shift_r) & (bitmask - 1); | |
2124 | ||
2125 | return 0; | |
2126 | } | |
2127 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2128 | ||
2129 | /** | |
2130 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2131 | * @kcontrol: mixer control | |
ac11a2b3 | 2132 | * @ucontrol: control element information |
db2a4165 FM |
2133 | * |
2134 | * Callback to set the value of a double enumerated mixer. | |
2135 | * | |
2136 | * Returns 0 for success. | |
2137 | */ | |
2138 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2139 | struct snd_ctl_elem_value *ucontrol) | |
2140 | { | |
2141 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2142 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2143 | unsigned int val; |
2144 | unsigned int mask, bitmask; | |
db2a4165 | 2145 | |
f8ba0b7b | 2146 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2147 | ; |
f8ba0b7b | 2148 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2149 | return -EINVAL; |
2150 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2151 | mask = (bitmask - 1) << e->shift_l; | |
2152 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2153 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2154 | return -EINVAL; |
2155 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2156 | mask |= (bitmask - 1) << e->shift_r; | |
2157 | } | |
2158 | ||
6c508c62 | 2159 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2160 | } |
2161 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2162 | ||
2e72f8e3 PU |
2163 | /** |
2164 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2165 | * @kcontrol: mixer control | |
2166 | * @ucontrol: control element information | |
2167 | * | |
2168 | * Callback to get the value of a double semi enumerated mixer. | |
2169 | * | |
2170 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2171 | * used for handling bitfield coded enumeration for example. | |
2172 | * | |
2173 | * Returns 0 for success. | |
2174 | */ | |
2175 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2176 | struct snd_ctl_elem_value *ucontrol) | |
2177 | { | |
2178 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2179 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2180 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2181 | |
2182 | reg_val = snd_soc_read(codec, e->reg); | |
2183 | val = (reg_val >> e->shift_l) & e->mask; | |
2184 | for (mux = 0; mux < e->max; mux++) { | |
2185 | if (val == e->values[mux]) | |
2186 | break; | |
2187 | } | |
2188 | ucontrol->value.enumerated.item[0] = mux; | |
2189 | if (e->shift_l != e->shift_r) { | |
2190 | val = (reg_val >> e->shift_r) & e->mask; | |
2191 | for (mux = 0; mux < e->max; mux++) { | |
2192 | if (val == e->values[mux]) | |
2193 | break; | |
2194 | } | |
2195 | ucontrol->value.enumerated.item[1] = mux; | |
2196 | } | |
2197 | ||
2198 | return 0; | |
2199 | } | |
2200 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2201 | ||
2202 | /** | |
2203 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2204 | * @kcontrol: mixer control | |
2205 | * @ucontrol: control element information | |
2206 | * | |
2207 | * Callback to set the value of a double semi enumerated mixer. | |
2208 | * | |
2209 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2210 | * used for handling bitfield coded enumeration for example. | |
2211 | * | |
2212 | * Returns 0 for success. | |
2213 | */ | |
2214 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2215 | struct snd_ctl_elem_value *ucontrol) | |
2216 | { | |
2217 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2218 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2219 | unsigned int val; |
2220 | unsigned int mask; | |
2e72f8e3 PU |
2221 | |
2222 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2223 | return -EINVAL; | |
2224 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2225 | mask = e->mask << e->shift_l; | |
2226 | if (e->shift_l != e->shift_r) { | |
2227 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2228 | return -EINVAL; | |
2229 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2230 | mask |= e->mask << e->shift_r; | |
2231 | } | |
2232 | ||
6c508c62 | 2233 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2234 | } |
2235 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2236 | ||
db2a4165 FM |
2237 | /** |
2238 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2239 | * @kcontrol: mixer control | |
2240 | * @uinfo: control element information | |
2241 | * | |
2242 | * Callback to provide information about an external enumerated | |
2243 | * single mixer. | |
2244 | * | |
2245 | * Returns 0 for success. | |
2246 | */ | |
2247 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2248 | struct snd_ctl_elem_info *uinfo) | |
2249 | { | |
2250 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2251 | ||
2252 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2253 | uinfo->count = 1; | |
f8ba0b7b | 2254 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2255 | |
f8ba0b7b JS |
2256 | if (uinfo->value.enumerated.item > e->max - 1) |
2257 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2258 | strcpy(uinfo->value.enumerated.name, |
2259 | e->texts[uinfo->value.enumerated.item]); | |
2260 | return 0; | |
2261 | } | |
2262 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2263 | ||
2264 | /** | |
2265 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2266 | * @kcontrol: mixer control | |
2267 | * @uinfo: control element information | |
2268 | * | |
2269 | * Callback to provide information about a single external mixer control. | |
2270 | * | |
2271 | * Returns 0 for success. | |
2272 | */ | |
2273 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2274 | struct snd_ctl_elem_info *uinfo) | |
2275 | { | |
a7a4ac86 PZ |
2276 | int max = kcontrol->private_value; |
2277 | ||
fd5dfad9 | 2278 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2279 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2280 | else | |
2281 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2282 | |
db2a4165 FM |
2283 | uinfo->count = 1; |
2284 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2285 | uinfo->value.integer.max = max; |
db2a4165 FM |
2286 | return 0; |
2287 | } | |
2288 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2289 | ||
db2a4165 FM |
2290 | /** |
2291 | * snd_soc_info_volsw - single mixer info callback | |
2292 | * @kcontrol: mixer control | |
2293 | * @uinfo: control element information | |
2294 | * | |
2295 | * Callback to provide information about a single mixer control. | |
2296 | * | |
2297 | * Returns 0 for success. | |
2298 | */ | |
2299 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2300 | struct snd_ctl_elem_info *uinfo) | |
2301 | { | |
4eaa9819 JS |
2302 | struct soc_mixer_control *mc = |
2303 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2304 | int platform_max; |
762b8df7 | 2305 | unsigned int shift = mc->shift; |
815ecf8d | 2306 | unsigned int rshift = mc->rshift; |
db2a4165 | 2307 | |
d11bb4a9 PU |
2308 | if (!mc->platform_max) |
2309 | mc->platform_max = mc->max; | |
2310 | platform_max = mc->platform_max; | |
2311 | ||
2312 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2313 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2314 | else | |
2315 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2316 | ||
db2a4165 FM |
2317 | uinfo->count = shift == rshift ? 1 : 2; |
2318 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2319 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2320 | return 0; |
2321 | } | |
2322 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2323 | ||
2324 | /** | |
2325 | * snd_soc_get_volsw - single mixer get callback | |
2326 | * @kcontrol: mixer control | |
ac11a2b3 | 2327 | * @ucontrol: control element information |
db2a4165 FM |
2328 | * |
2329 | * Callback to get the value of a single mixer control. | |
2330 | * | |
2331 | * Returns 0 for success. | |
2332 | */ | |
2333 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2334 | struct snd_ctl_elem_value *ucontrol) | |
2335 | { | |
4eaa9819 JS |
2336 | struct soc_mixer_control *mc = |
2337 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2338 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2339 | unsigned int reg = mc->reg; |
2340 | unsigned int shift = mc->shift; | |
2341 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2342 | int max = mc->max; |
815ecf8d JS |
2343 | unsigned int mask = (1 << fls(max)) - 1; |
2344 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2345 | |
2346 | ucontrol->value.integer.value[0] = | |
2347 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2348 | if (shift != rshift) | |
2349 | ucontrol->value.integer.value[1] = | |
2350 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2351 | if (invert) { | |
2352 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2353 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2354 | if (shift != rshift) |
2355 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2356 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2357 | } |
2358 | ||
2359 | return 0; | |
2360 | } | |
2361 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2362 | ||
2363 | /** | |
2364 | * snd_soc_put_volsw - single mixer put callback | |
2365 | * @kcontrol: mixer control | |
ac11a2b3 | 2366 | * @ucontrol: control element information |
db2a4165 FM |
2367 | * |
2368 | * Callback to set the value of a single mixer control. | |
2369 | * | |
2370 | * Returns 0 for success. | |
2371 | */ | |
2372 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2373 | struct snd_ctl_elem_value *ucontrol) | |
2374 | { | |
4eaa9819 JS |
2375 | struct soc_mixer_control *mc = |
2376 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2377 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2378 | unsigned int reg = mc->reg; |
2379 | unsigned int shift = mc->shift; | |
2380 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2381 | int max = mc->max; |
815ecf8d JS |
2382 | unsigned int mask = (1 << fls(max)) - 1; |
2383 | unsigned int invert = mc->invert; | |
46f5822f | 2384 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2385 | |
2386 | val = (ucontrol->value.integer.value[0] & mask); | |
2387 | if (invert) | |
a7a4ac86 | 2388 | val = max - val; |
db2a4165 FM |
2389 | val_mask = mask << shift; |
2390 | val = val << shift; | |
2391 | if (shift != rshift) { | |
2392 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2393 | if (invert) | |
a7a4ac86 | 2394 | val2 = max - val2; |
db2a4165 FM |
2395 | val_mask |= mask << rshift; |
2396 | val |= val2 << rshift; | |
2397 | } | |
6c508c62 | 2398 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2399 | } |
2400 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2401 | ||
2402 | /** | |
2403 | * snd_soc_info_volsw_2r - double mixer info callback | |
2404 | * @kcontrol: mixer control | |
2405 | * @uinfo: control element information | |
2406 | * | |
2407 | * Callback to provide information about a double mixer control that | |
2408 | * spans 2 codec registers. | |
2409 | * | |
2410 | * Returns 0 for success. | |
2411 | */ | |
2412 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2413 | struct snd_ctl_elem_info *uinfo) | |
2414 | { | |
4eaa9819 JS |
2415 | struct soc_mixer_control *mc = |
2416 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2417 | int platform_max; |
a7a4ac86 | 2418 | |
d11bb4a9 PU |
2419 | if (!mc->platform_max) |
2420 | mc->platform_max = mc->max; | |
2421 | platform_max = mc->platform_max; | |
2422 | ||
2423 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2424 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2425 | else | |
2426 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2427 | |
db2a4165 FM |
2428 | uinfo->count = 2; |
2429 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2430 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2431 | return 0; |
2432 | } | |
2433 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2434 | ||
2435 | /** | |
2436 | * snd_soc_get_volsw_2r - double mixer get callback | |
2437 | * @kcontrol: mixer control | |
ac11a2b3 | 2438 | * @ucontrol: control element information |
db2a4165 FM |
2439 | * |
2440 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2441 | * | |
2442 | * Returns 0 for success. | |
2443 | */ | |
2444 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2445 | struct snd_ctl_elem_value *ucontrol) | |
2446 | { | |
4eaa9819 JS |
2447 | struct soc_mixer_control *mc = |
2448 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2449 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2450 | unsigned int reg = mc->reg; |
2451 | unsigned int reg2 = mc->rreg; | |
2452 | unsigned int shift = mc->shift; | |
4eaa9819 | 2453 | int max = mc->max; |
46f5822f | 2454 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2455 | unsigned int invert = mc->invert; |
db2a4165 FM |
2456 | |
2457 | ucontrol->value.integer.value[0] = | |
2458 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2459 | ucontrol->value.integer.value[1] = | |
2460 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2461 | if (invert) { | |
2462 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2463 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2464 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2465 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2466 | } |
2467 | ||
2468 | return 0; | |
2469 | } | |
2470 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2471 | ||
2472 | /** | |
2473 | * snd_soc_put_volsw_2r - double mixer set callback | |
2474 | * @kcontrol: mixer control | |
ac11a2b3 | 2475 | * @ucontrol: control element information |
db2a4165 FM |
2476 | * |
2477 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2478 | * | |
2479 | * Returns 0 for success. | |
2480 | */ | |
2481 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2482 | struct snd_ctl_elem_value *ucontrol) | |
2483 | { | |
4eaa9819 JS |
2484 | struct soc_mixer_control *mc = |
2485 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2486 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2487 | unsigned int reg = mc->reg; |
2488 | unsigned int reg2 = mc->rreg; | |
2489 | unsigned int shift = mc->shift; | |
4eaa9819 | 2490 | int max = mc->max; |
815ecf8d JS |
2491 | unsigned int mask = (1 << fls(max)) - 1; |
2492 | unsigned int invert = mc->invert; | |
db2a4165 | 2493 | int err; |
46f5822f | 2494 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2495 | |
2496 | val_mask = mask << shift; | |
2497 | val = (ucontrol->value.integer.value[0] & mask); | |
2498 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2499 | ||
2500 | if (invert) { | |
a7a4ac86 PZ |
2501 | val = max - val; |
2502 | val2 = max - val2; | |
db2a4165 FM |
2503 | } |
2504 | ||
2505 | val = val << shift; | |
2506 | val2 = val2 << shift; | |
2507 | ||
6c508c62 | 2508 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2509 | if (err < 0) |
db2a4165 FM |
2510 | return err; |
2511 | ||
6c508c62 | 2512 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2513 | return err; |
2514 | } | |
2515 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2516 | ||
e13ac2e9 MB |
2517 | /** |
2518 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2519 | * @kcontrol: mixer control | |
2520 | * @uinfo: control element information | |
2521 | * | |
2522 | * Callback to provide information about a signed mixer control. | |
2523 | * | |
2524 | * Returns 0 for success. | |
2525 | */ | |
2526 | int snd_soc_info_volsw_s8(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; |
4eaa9819 | 2532 | int min = mc->min; |
e13ac2e9 | 2533 | |
d11bb4a9 PU |
2534 | if (!mc->platform_max) |
2535 | mc->platform_max = mc->max; | |
2536 | platform_max = mc->platform_max; | |
2537 | ||
e13ac2e9 MB |
2538 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2539 | uinfo->count = 2; | |
2540 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2541 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2542 | return 0; |
2543 | } | |
2544 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2545 | ||
2546 | /** | |
2547 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2548 | * @kcontrol: mixer control | |
ac11a2b3 | 2549 | * @ucontrol: control element information |
e13ac2e9 MB |
2550 | * |
2551 | * Callback to get the value of a signed mixer control. | |
2552 | * | |
2553 | * Returns 0 for success. | |
2554 | */ | |
2555 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2556 | struct snd_ctl_elem_value *ucontrol) | |
2557 | { | |
4eaa9819 JS |
2558 | struct soc_mixer_control *mc = |
2559 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2560 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2561 | unsigned int reg = mc->reg; |
4eaa9819 | 2562 | int min = mc->min; |
e13ac2e9 MB |
2563 | int val = snd_soc_read(codec, reg); |
2564 | ||
2565 | ucontrol->value.integer.value[0] = | |
2566 | ((signed char)(val & 0xff))-min; | |
2567 | ucontrol->value.integer.value[1] = | |
2568 | ((signed char)((val >> 8) & 0xff))-min; | |
2569 | return 0; | |
2570 | } | |
2571 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2572 | ||
2573 | /** | |
2574 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2575 | * @kcontrol: mixer control | |
ac11a2b3 | 2576 | * @ucontrol: control element information |
e13ac2e9 MB |
2577 | * |
2578 | * Callback to set the value of a signed mixer control. | |
2579 | * | |
2580 | * Returns 0 for success. | |
2581 | */ | |
2582 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2583 | struct snd_ctl_elem_value *ucontrol) | |
2584 | { | |
4eaa9819 JS |
2585 | struct soc_mixer_control *mc = |
2586 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2587 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2588 | unsigned int reg = mc->reg; |
4eaa9819 | 2589 | int min = mc->min; |
46f5822f | 2590 | unsigned int val; |
e13ac2e9 MB |
2591 | |
2592 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2593 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2594 | ||
6c508c62 | 2595 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2596 | } |
2597 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2598 | ||
637d3847 PU |
2599 | /** |
2600 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2601 | * | |
2602 | * @codec: where to look for the control | |
2603 | * @name: Name of the control | |
2604 | * @max: new maximum limit | |
2605 | * | |
2606 | * Return 0 for success, else error. | |
2607 | */ | |
2608 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2609 | const char *name, int max) | |
2610 | { | |
f0fba2ad | 2611 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2612 | struct snd_kcontrol *kctl; |
2613 | struct soc_mixer_control *mc; | |
2614 | int found = 0; | |
2615 | int ret = -EINVAL; | |
2616 | ||
2617 | /* Sanity check for name and max */ | |
2618 | if (unlikely(!name || max <= 0)) | |
2619 | return -EINVAL; | |
2620 | ||
2621 | list_for_each_entry(kctl, &card->controls, list) { | |
2622 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2623 | found = 1; | |
2624 | break; | |
2625 | } | |
2626 | } | |
2627 | if (found) { | |
2628 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2629 | if (max <= mc->max) { | |
d11bb4a9 | 2630 | mc->platform_max = max; |
637d3847 PU |
2631 | ret = 0; |
2632 | } | |
2633 | } | |
2634 | return ret; | |
2635 | } | |
2636 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2637 | ||
b6f4bb38 | 2638 | /** |
2639 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2640 | * mixer info callback | |
2641 | * @kcontrol: mixer control | |
2642 | * @uinfo: control element information | |
2643 | * | |
2644 | * Returns 0 for success. | |
2645 | */ | |
2646 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2647 | struct snd_ctl_elem_info *uinfo) | |
2648 | { | |
2649 | struct soc_mixer_control *mc = | |
2650 | (struct soc_mixer_control *)kcontrol->private_value; | |
2651 | int max = mc->max; | |
2652 | int min = mc->min; | |
2653 | ||
2654 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2655 | uinfo->count = 2; | |
2656 | uinfo->value.integer.min = 0; | |
2657 | uinfo->value.integer.max = max-min; | |
2658 | ||
2659 | return 0; | |
2660 | } | |
2661 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2662 | ||
2663 | /** | |
2664 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2665 | * mixer get callback | |
2666 | * @kcontrol: mixer control | |
2667 | * @uinfo: control element information | |
2668 | * | |
2669 | * Returns 0 for success. | |
2670 | */ | |
2671 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2672 | struct snd_ctl_elem_value *ucontrol) | |
2673 | { | |
2674 | struct soc_mixer_control *mc = | |
2675 | (struct soc_mixer_control *)kcontrol->private_value; | |
2676 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2677 | unsigned int mask = (1<<mc->shift)-1; | |
2678 | int min = mc->min; | |
2679 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2680 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2681 | ||
20630c7f SL |
2682 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2683 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2684 | return 0; |
2685 | } | |
2686 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2687 | ||
2688 | /** | |
2689 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2690 | * mixer put callback | |
2691 | * @kcontrol: mixer control | |
2692 | * @uinfo: control element information | |
2693 | * | |
2694 | * Returns 0 for success. | |
2695 | */ | |
2696 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2697 | struct snd_ctl_elem_value *ucontrol) | |
2698 | { | |
2699 | struct soc_mixer_control *mc = | |
2700 | (struct soc_mixer_control *)kcontrol->private_value; | |
2701 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2702 | unsigned int mask = (1<<mc->shift)-1; | |
2703 | int min = mc->min; | |
2704 | int ret; | |
2705 | unsigned int val, valr, oval, ovalr; | |
2706 | ||
2707 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2708 | val &= mask; | |
2709 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2710 | valr &= mask; | |
2711 | ||
2712 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2713 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2714 | ||
2715 | ret = 0; | |
2716 | if (oval != val) { | |
2717 | ret = snd_soc_write(codec, mc->reg, val); | |
2718 | if (ret < 0) | |
f1df5aec | 2719 | return ret; |
b6f4bb38 | 2720 | } |
2721 | if (ovalr != valr) { | |
2722 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2723 | if (ret < 0) | |
f1df5aec | 2724 | return ret; |
b6f4bb38 | 2725 | } |
2726 | ||
2727 | return 0; | |
2728 | } | |
2729 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2730 | ||
8c6529db LG |
2731 | /** |
2732 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2733 | * @dai: DAI | |
2734 | * @clk_id: DAI specific clock ID | |
2735 | * @freq: new clock frequency in Hz | |
2736 | * @dir: new clock direction - input/output. | |
2737 | * | |
2738 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2739 | */ | |
2740 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2741 | unsigned int freq, int dir) | |
2742 | { | |
f0fba2ad LG |
2743 | if (dai->driver && dai->driver->ops->set_sysclk) |
2744 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2745 | else |
2746 | return -EINVAL; | |
2747 | } | |
2748 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2749 | ||
2750 | /** | |
2751 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2752 | * @dai: DAI | |
ac11a2b3 | 2753 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2754 | * @div: new clock divisor. |
2755 | * | |
2756 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2757 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2758 | * and frame clocks as low as possible to save system power. | |
2759 | */ | |
2760 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2761 | int div_id, int div) | |
2762 | { | |
f0fba2ad LG |
2763 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2764 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2765 | else |
2766 | return -EINVAL; | |
2767 | } | |
2768 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2769 | ||
2770 | /** | |
2771 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2772 | * @dai: DAI | |
2773 | * @pll_id: DAI specific PLL ID | |
85488037 | 2774 | * @source: DAI specific source for the PLL |
8c6529db LG |
2775 | * @freq_in: PLL input clock frequency in Hz |
2776 | * @freq_out: requested PLL output clock frequency in Hz | |
2777 | * | |
2778 | * Configures and enables PLL to generate output clock based on input clock. | |
2779 | */ | |
85488037 MB |
2780 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2781 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2782 | { |
f0fba2ad LG |
2783 | if (dai->driver && dai->driver->ops->set_pll) |
2784 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2785 | freq_in, freq_out); |
8c6529db LG |
2786 | else |
2787 | return -EINVAL; | |
2788 | } | |
2789 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2790 | ||
2791 | /** | |
2792 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2793 | * @dai: DAI | |
8c6529db LG |
2794 | * @fmt: SND_SOC_DAIFMT_ format value. |
2795 | * | |
2796 | * Configures the DAI hardware format and clocking. | |
2797 | */ | |
2798 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2799 | { | |
f0fba2ad LG |
2800 | if (dai->driver && dai->driver->ops->set_fmt) |
2801 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2802 | else |
2803 | return -EINVAL; | |
2804 | } | |
2805 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2806 | ||
2807 | /** | |
2808 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2809 | * @dai: DAI | |
a5479e38 DR |
2810 | * @tx_mask: bitmask representing active TX slots. |
2811 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2812 | * @slots: Number of slots in use. |
a5479e38 | 2813 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2814 | * |
2815 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2816 | * specific. | |
2817 | */ | |
2818 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2819 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2820 | { |
f0fba2ad LG |
2821 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2822 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2823 | slots, slot_width); |
8c6529db LG |
2824 | else |
2825 | return -EINVAL; | |
2826 | } | |
2827 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2828 | ||
472df3cb BS |
2829 | /** |
2830 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2831 | * @dai: DAI | |
2832 | * @tx_num: how many TX channels | |
2833 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2834 | * 0~num-1 uses | |
2835 | * @rx_num: how many RX channels | |
2836 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2837 | * 0~num-1 uses | |
2838 | * | |
2839 | * configure the relationship between channel number and TDM slot number. | |
2840 | */ | |
2841 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2842 | unsigned int tx_num, unsigned int *tx_slot, | |
2843 | unsigned int rx_num, unsigned int *rx_slot) | |
2844 | { | |
f0fba2ad LG |
2845 | if (dai->driver && dai->driver->ops->set_channel_map) |
2846 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2847 | rx_num, rx_slot); |
2848 | else | |
2849 | return -EINVAL; | |
2850 | } | |
2851 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2852 | ||
8c6529db LG |
2853 | /** |
2854 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2855 | * @dai: DAI | |
2856 | * @tristate: tristate enable | |
2857 | * | |
2858 | * Tristates the DAI so that others can use it. | |
2859 | */ | |
2860 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2861 | { | |
f0fba2ad LG |
2862 | if (dai->driver && dai->driver->ops->set_tristate) |
2863 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2864 | else |
2865 | return -EINVAL; | |
2866 | } | |
2867 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2868 | ||
2869 | /** | |
2870 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2871 | * @dai: DAI | |
2872 | * @mute: mute enable | |
2873 | * | |
2874 | * Mutes the DAI DAC. | |
2875 | */ | |
2876 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2877 | { | |
f0fba2ad LG |
2878 | if (dai->driver && dai->driver->ops->digital_mute) |
2879 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2880 | else |
2881 | return -EINVAL; | |
2882 | } | |
2883 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2884 | ||
c5af3a2e MB |
2885 | /** |
2886 | * snd_soc_register_card - Register a card with the ASoC core | |
2887 | * | |
ac11a2b3 | 2888 | * @card: Card to register |
c5af3a2e MB |
2889 | * |
2890 | * Note that currently this is an internal only function: it will be | |
2891 | * exposed to machine drivers after further backporting of ASoC v2 | |
2892 | * registration APIs. | |
2893 | */ | |
2894 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2895 | { | |
f0fba2ad LG |
2896 | int i; |
2897 | ||
c5af3a2e MB |
2898 | if (!card->name || !card->dev) |
2899 | return -EINVAL; | |
2900 | ||
f0fba2ad LG |
2901 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links, |
2902 | GFP_KERNEL); | |
2903 | if (card->rtd == NULL) | |
2904 | return -ENOMEM; | |
2905 | ||
2906 | for (i = 0; i < card->num_links; i++) | |
2907 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2908 | ||
c5af3a2e MB |
2909 | INIT_LIST_HEAD(&card->list); |
2910 | card->instantiated = 0; | |
f0fba2ad | 2911 | mutex_init(&card->mutex); |
c5af3a2e MB |
2912 | |
2913 | mutex_lock(&client_mutex); | |
2914 | list_add(&card->list, &card_list); | |
435c5e25 | 2915 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2916 | mutex_unlock(&client_mutex); |
2917 | ||
2918 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2919 | ||
2920 | return 0; | |
2921 | } | |
2922 | ||
2923 | /** | |
2924 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2925 | * | |
ac11a2b3 | 2926 | * @card: Card to unregister |
c5af3a2e MB |
2927 | * |
2928 | * Note that currently this is an internal only function: it will be | |
2929 | * exposed to machine drivers after further backporting of ASoC v2 | |
2930 | * registration APIs. | |
2931 | */ | |
2932 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2933 | { | |
2934 | mutex_lock(&client_mutex); | |
2935 | list_del(&card->list); | |
2936 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2937 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2938 | ||
2939 | return 0; | |
2940 | } | |
2941 | ||
f0fba2ad LG |
2942 | /* |
2943 | * Simplify DAI link configuration by removing ".-1" from device names | |
2944 | * and sanitizing names. | |
2945 | */ | |
2946 | static inline char *fmt_single_name(struct device *dev, int *id) | |
2947 | { | |
2948 | char *found, name[NAME_SIZE]; | |
2949 | int id1, id2; | |
2950 | ||
2951 | if (dev_name(dev) == NULL) | |
2952 | return NULL; | |
2953 | ||
2954 | strncpy(name, dev_name(dev), NAME_SIZE); | |
2955 | ||
2956 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2957 | found = strstr(name, dev->driver->name); | |
2958 | if (found) { | |
2959 | /* get ID */ | |
2960 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2961 | ||
2962 | /* discard ID from name if ID == -1 */ | |
2963 | if (*id == -1) | |
2964 | found[strlen(dev->driver->name)] = '\0'; | |
2965 | } | |
2966 | ||
2967 | } else { | |
2968 | /* I2C component devices are named "bus-addr" */ | |
2969 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2970 | char tmp[NAME_SIZE]; | |
2971 | ||
2972 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2973 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2974 | |
2975 | /* sanitize component name for DAI link creation */ | |
2976 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
2977 | strncpy(name, tmp, NAME_SIZE); | |
2978 | } else | |
2979 | *id = 0; | |
2980 | } | |
2981 | ||
2982 | return kstrdup(name, GFP_KERNEL); | |
2983 | } | |
2984 | ||
2985 | /* | |
2986 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2987 | * any ".-1" and using the DAI name (instead of device name). | |
2988 | */ | |
2989 | static inline char *fmt_multiple_name(struct device *dev, | |
2990 | struct snd_soc_dai_driver *dai_drv) | |
2991 | { | |
2992 | if (dai_drv->name == NULL) { | |
2993 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2994 | dev_name(dev)); | |
2995 | return NULL; | |
2996 | } | |
2997 | ||
2998 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2999 | } | |
3000 | ||
9115171a MB |
3001 | /** |
3002 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3003 | * | |
ac11a2b3 | 3004 | * @dai: DAI to register |
9115171a | 3005 | */ |
f0fba2ad LG |
3006 | int snd_soc_register_dai(struct device *dev, |
3007 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3008 | { |
f0fba2ad LG |
3009 | struct snd_soc_dai *dai; |
3010 | ||
3011 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3012 | |
f0fba2ad LG |
3013 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3014 | if (dai == NULL) | |
3015 | return -ENOMEM; | |
9115171a | 3016 | |
f0fba2ad LG |
3017 | /* create DAI component name */ |
3018 | dai->name = fmt_single_name(dev, &dai->id); | |
3019 | if (dai->name == NULL) { | |
3020 | kfree(dai); | |
3021 | return -ENOMEM; | |
3022 | } | |
6335d055 | 3023 | |
f0fba2ad LG |
3024 | dai->dev = dev; |
3025 | dai->driver = dai_drv; | |
3026 | if (!dai->driver->ops) | |
3027 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3028 | |
3029 | mutex_lock(&client_mutex); | |
3030 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3031 | snd_soc_instantiate_cards(); |
9115171a MB |
3032 | mutex_unlock(&client_mutex); |
3033 | ||
3034 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3035 | ||
3036 | return 0; | |
3037 | } | |
3038 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3039 | ||
3040 | /** | |
3041 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3042 | * | |
ac11a2b3 | 3043 | * @dai: DAI to unregister |
9115171a | 3044 | */ |
f0fba2ad | 3045 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3046 | { |
f0fba2ad LG |
3047 | struct snd_soc_dai *dai; |
3048 | ||
3049 | list_for_each_entry(dai, &dai_list, list) { | |
3050 | if (dev == dai->dev) | |
3051 | goto found; | |
3052 | } | |
3053 | return; | |
3054 | ||
3055 | found: | |
9115171a MB |
3056 | mutex_lock(&client_mutex); |
3057 | list_del(&dai->list); | |
3058 | mutex_unlock(&client_mutex); | |
3059 | ||
3060 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3061 | kfree(dai->name); |
3062 | kfree(dai); | |
9115171a MB |
3063 | } |
3064 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3065 | ||
3066 | /** | |
3067 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3068 | * | |
ac11a2b3 MB |
3069 | * @dai: Array of DAIs to register |
3070 | * @count: Number of DAIs | |
9115171a | 3071 | */ |
f0fba2ad LG |
3072 | int snd_soc_register_dais(struct device *dev, |
3073 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3074 | { |
f0fba2ad LG |
3075 | struct snd_soc_dai *dai; |
3076 | int i, ret = 0; | |
3077 | ||
720ffa4c | 3078 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3079 | |
3080 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3081 | |
3082 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3083 | if (dai == NULL) { |
3084 | ret = -ENOMEM; | |
3085 | goto err; | |
3086 | } | |
f0fba2ad LG |
3087 | |
3088 | /* create DAI component name */ | |
3089 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3090 | if (dai->name == NULL) { | |
3091 | kfree(dai); | |
3092 | ret = -EINVAL; | |
9115171a | 3093 | goto err; |
f0fba2ad LG |
3094 | } |
3095 | ||
3096 | dai->dev = dev; | |
f0fba2ad | 3097 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3098 | if (dai->driver->id) |
3099 | dai->id = dai->driver->id; | |
3100 | else | |
3101 | dai->id = i; | |
f0fba2ad LG |
3102 | if (!dai->driver->ops) |
3103 | dai->driver->ops = &null_dai_ops; | |
3104 | ||
3105 | mutex_lock(&client_mutex); | |
3106 | list_add(&dai->list, &dai_list); | |
3107 | mutex_unlock(&client_mutex); | |
3108 | ||
3109 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3110 | } |
3111 | ||
f0fba2ad | 3112 | snd_soc_instantiate_cards(); |
9115171a MB |
3113 | return 0; |
3114 | ||
3115 | err: | |
3116 | for (i--; i >= 0; i--) | |
f0fba2ad | 3117 | snd_soc_unregister_dai(dev); |
9115171a MB |
3118 | |
3119 | return ret; | |
3120 | } | |
3121 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3122 | ||
3123 | /** | |
3124 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3125 | * | |
ac11a2b3 MB |
3126 | * @dai: Array of DAIs to unregister |
3127 | * @count: Number of DAIs | |
9115171a | 3128 | */ |
f0fba2ad | 3129 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3130 | { |
3131 | int i; | |
3132 | ||
3133 | for (i = 0; i < count; i++) | |
f0fba2ad | 3134 | snd_soc_unregister_dai(dev); |
9115171a MB |
3135 | } |
3136 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3137 | ||
12a48a8c MB |
3138 | /** |
3139 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3140 | * | |
ac11a2b3 | 3141 | * @platform: platform to register |
12a48a8c | 3142 | */ |
f0fba2ad LG |
3143 | int snd_soc_register_platform(struct device *dev, |
3144 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3145 | { |
f0fba2ad LG |
3146 | struct snd_soc_platform *platform; |
3147 | ||
3148 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3149 | ||
3150 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3151 | if (platform == NULL) | |
3152 | return -ENOMEM; | |
3153 | ||
3154 | /* create platform component name */ | |
3155 | platform->name = fmt_single_name(dev, &platform->id); | |
3156 | if (platform->name == NULL) { | |
3157 | kfree(platform); | |
3158 | return -ENOMEM; | |
3159 | } | |
12a48a8c | 3160 | |
f0fba2ad LG |
3161 | platform->dev = dev; |
3162 | platform->driver = platform_drv; | |
12a48a8c MB |
3163 | |
3164 | mutex_lock(&client_mutex); | |
3165 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3166 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3167 | mutex_unlock(&client_mutex); |
3168 | ||
3169 | pr_debug("Registered platform '%s'\n", platform->name); | |
3170 | ||
3171 | return 0; | |
3172 | } | |
3173 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3174 | ||
3175 | /** | |
3176 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3177 | * | |
ac11a2b3 | 3178 | * @platform: platform to unregister |
12a48a8c | 3179 | */ |
f0fba2ad | 3180 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3181 | { |
f0fba2ad LG |
3182 | struct snd_soc_platform *platform; |
3183 | ||
3184 | list_for_each_entry(platform, &platform_list, list) { | |
3185 | if (dev == platform->dev) | |
3186 | goto found; | |
3187 | } | |
3188 | return; | |
3189 | ||
3190 | found: | |
12a48a8c MB |
3191 | mutex_lock(&client_mutex); |
3192 | list_del(&platform->list); | |
3193 | mutex_unlock(&client_mutex); | |
3194 | ||
3195 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3196 | kfree(platform->name); |
3197 | kfree(platform); | |
12a48a8c MB |
3198 | } |
3199 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3200 | ||
151ab22c MB |
3201 | static u64 codec_format_map[] = { |
3202 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3203 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3204 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3205 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3206 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3207 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3208 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3209 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3210 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3211 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3212 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3213 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3214 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3215 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3216 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3217 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3218 | }; | |
3219 | ||
3220 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3221 | * the endianness of the data but we're using the CPU format | |
3222 | * definitions which do need to include endianness so we ensure that | |
3223 | * codec DAIs always have both big and little endian variants set. | |
3224 | */ | |
3225 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3226 | { | |
3227 | int i; | |
3228 | ||
3229 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3230 | if (stream->formats & codec_format_map[i]) | |
3231 | stream->formats |= codec_format_map[i]; | |
3232 | } | |
3233 | ||
0d0cf00a MB |
3234 | /** |
3235 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3236 | * | |
ac11a2b3 | 3237 | * @codec: codec to register |
0d0cf00a | 3238 | */ |
f0fba2ad LG |
3239 | int snd_soc_register_codec(struct device *dev, |
3240 | struct snd_soc_codec_driver *codec_drv, | |
3241 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3242 | { |
f0fba2ad LG |
3243 | struct snd_soc_codec *codec; |
3244 | int ret, i; | |
151ab22c | 3245 | |
f0fba2ad LG |
3246 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3247 | ||
3248 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3249 | if (codec == NULL) | |
3250 | return -ENOMEM; | |
0d0cf00a | 3251 | |
f0fba2ad LG |
3252 | /* create CODEC component name */ |
3253 | codec->name = fmt_single_name(dev, &codec->id); | |
3254 | if (codec->name == NULL) { | |
3255 | kfree(codec); | |
3256 | return -ENOMEM; | |
3257 | } | |
3258 | ||
ce6120cc LG |
3259 | INIT_LIST_HEAD(&codec->dapm.widgets); |
3260 | INIT_LIST_HEAD(&codec->dapm.paths); | |
3261 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; | |
3262 | codec->dapm.dev = dev; | |
3263 | codec->dapm.codec = codec; | |
3264 | ||
f0fba2ad LG |
3265 | /* allocate CODEC register cache */ |
3266 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
0d0cf00a | 3267 | |
f0fba2ad LG |
3268 | if (codec_drv->reg_cache_default) |
3269 | codec->reg_cache = kmemdup(codec_drv->reg_cache_default, | |
3270 | codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL); | |
3271 | else | |
3272 | codec->reg_cache = kzalloc(codec_drv->reg_cache_size * | |
3273 | codec_drv->reg_word_size, GFP_KERNEL); | |
0d0cf00a | 3274 | |
f0fba2ad LG |
3275 | if (codec->reg_cache == NULL) { |
3276 | kfree(codec->name); | |
3277 | kfree(codec); | |
3278 | return -ENOMEM; | |
3279 | } | |
151ab22c MB |
3280 | } |
3281 | ||
f0fba2ad LG |
3282 | codec->dev = dev; |
3283 | codec->driver = codec_drv; | |
f0fba2ad LG |
3284 | codec->num_dai = num_dai; |
3285 | mutex_init(&codec->mutex); | |
f0fba2ad LG |
3286 | |
3287 | for (i = 0; i < num_dai; i++) { | |
3288 | fixup_codec_formats(&dai_drv[i].playback); | |
3289 | fixup_codec_formats(&dai_drv[i].capture); | |
3290 | } | |
3291 | ||
26b01ccd MB |
3292 | /* register any DAIs */ |
3293 | if (num_dai) { | |
3294 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3295 | if (ret < 0) | |
f0fba2ad | 3296 | goto error; |
26b01ccd | 3297 | } |
f0fba2ad | 3298 | |
0d0cf00a MB |
3299 | mutex_lock(&client_mutex); |
3300 | list_add(&codec->list, &codec_list); | |
3301 | snd_soc_instantiate_cards(); | |
3302 | mutex_unlock(&client_mutex); | |
3303 | ||
3304 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3305 | return 0; |
f0fba2ad LG |
3306 | |
3307 | error: | |
f0fba2ad LG |
3308 | if (codec->reg_cache) |
3309 | kfree(codec->reg_cache); | |
3310 | kfree(codec->name); | |
3311 | kfree(codec); | |
3312 | return ret; | |
0d0cf00a MB |
3313 | } |
3314 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3315 | ||
3316 | /** | |
3317 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3318 | * | |
ac11a2b3 | 3319 | * @codec: codec to unregister |
0d0cf00a | 3320 | */ |
f0fba2ad | 3321 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3322 | { |
f0fba2ad LG |
3323 | struct snd_soc_codec *codec; |
3324 | int i; | |
3325 | ||
3326 | list_for_each_entry(codec, &codec_list, list) { | |
3327 | if (dev == codec->dev) | |
3328 | goto found; | |
3329 | } | |
3330 | return; | |
3331 | ||
3332 | found: | |
26b01ccd MB |
3333 | if (codec->num_dai) |
3334 | for (i = 0; i < codec->num_dai; i++) | |
3335 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3336 | |
0d0cf00a MB |
3337 | mutex_lock(&client_mutex); |
3338 | list_del(&codec->list); | |
3339 | mutex_unlock(&client_mutex); | |
3340 | ||
3341 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad LG |
3342 | |
3343 | if (codec->reg_cache) | |
3344 | kfree(codec->reg_cache); | |
1aafcd4d | 3345 | kfree(codec->name); |
f0fba2ad | 3346 | kfree(codec); |
0d0cf00a MB |
3347 | } |
3348 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3349 | ||
c9b3a40f | 3350 | static int __init snd_soc_init(void) |
db2a4165 | 3351 | { |
384c89e2 MB |
3352 | #ifdef CONFIG_DEBUG_FS |
3353 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3354 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3355 | printk(KERN_WARNING | |
3356 | "ASoC: Failed to create debugfs directory\n"); | |
3357 | debugfs_root = NULL; | |
3358 | } | |
c3c5a19a MB |
3359 | |
3360 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3361 | &codec_list_fops)) | |
3362 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3363 | ||
f3208780 MB |
3364 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3365 | &dai_list_fops)) | |
3366 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3367 | |
3368 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3369 | &platform_list_fops)) | |
3370 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3371 | #endif |
3372 | ||
db2a4165 FM |
3373 | return platform_driver_register(&soc_driver); |
3374 | } | |
4abe8e16 | 3375 | module_init(snd_soc_init); |
db2a4165 | 3376 | |
7d8c16a6 | 3377 | static void __exit snd_soc_exit(void) |
db2a4165 | 3378 | { |
384c89e2 MB |
3379 | #ifdef CONFIG_DEBUG_FS |
3380 | debugfs_remove_recursive(debugfs_root); | |
3381 | #endif | |
3ff3f64b | 3382 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3383 | } |
db2a4165 FM |
3384 | module_exit(snd_soc_exit); |
3385 | ||
3386 | /* Module information */ | |
d331124d | 3387 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3388 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3389 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3390 | MODULE_ALIAS("platform:soc-audio"); |