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> | |
db2a4165 FM |
39 | #include <sound/initval.h> |
40 | ||
a8b1d34f MB |
41 | #define CREATE_TRACE_POINTS |
42 | #include <trace/events/asoc.h> | |
43 | ||
f0fba2ad LG |
44 | #define NAME_SIZE 32 |
45 | ||
db2a4165 | 46 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
47 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
48 | ||
384c89e2 MB |
49 | #ifdef CONFIG_DEBUG_FS |
50 | static struct dentry *debugfs_root; | |
51 | #endif | |
52 | ||
c5af3a2e MB |
53 | static DEFINE_MUTEX(client_mutex); |
54 | static LIST_HEAD(card_list); | |
9115171a | 55 | static LIST_HEAD(dai_list); |
12a48a8c | 56 | static LIST_HEAD(platform_list); |
0d0cf00a | 57 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
58 | |
59 | static int snd_soc_register_card(struct snd_soc_card *card); | |
60 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
f0fba2ad | 61 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 62 | |
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
965ac42c LG |
72 | /* |
73 | * This function forces any delayed work to be queued and run. | |
74 | */ | |
75 | static int run_delayed_work(struct delayed_work *dwork) | |
76 | { | |
77 | int ret; | |
78 | ||
79 | /* cancel any work waiting to be queued. */ | |
80 | ret = cancel_delayed_work(dwork); | |
81 | ||
82 | /* if there was any work waiting then we run it now and | |
83 | * wait for it's completion */ | |
84 | if (ret) { | |
85 | schedule_delayed_work(dwork, 0); | |
86 | flush_scheduled_work(); | |
87 | } | |
88 | return ret; | |
89 | } | |
90 | ||
2624d5fa MB |
91 | /* codec register dump */ |
92 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
93 | { | |
5164d74d | 94 | int ret, i, step = 1, count = 0; |
2624d5fa | 95 | |
f0fba2ad | 96 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
97 | return 0; |
98 | ||
f0fba2ad LG |
99 | if (codec->driver->reg_cache_step) |
100 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
101 | |
102 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad LG |
103 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
104 | if (codec->driver->readable_register && !codec->driver->readable_register(i)) | |
2624d5fa MB |
105 | continue; |
106 | ||
107 | count += sprintf(buf + count, "%2x: ", i); | |
108 | if (count >= PAGE_SIZE - 1) | |
109 | break; | |
110 | ||
f0fba2ad LG |
111 | if (codec->driver->display_register) { |
112 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 113 | PAGE_SIZE - count, i); |
5164d74d MB |
114 | } else { |
115 | /* If the read fails it's almost certainly due to | |
116 | * the register being volatile and the device being | |
117 | * powered off. | |
118 | */ | |
f0fba2ad | 119 | ret = codec->driver->read(codec, i); |
5164d74d MB |
120 | if (ret >= 0) |
121 | count += snprintf(buf + count, | |
122 | PAGE_SIZE - count, | |
123 | "%4x", ret); | |
124 | else | |
125 | count += snprintf(buf + count, | |
126 | PAGE_SIZE - count, | |
127 | "<no data: %d>", ret); | |
128 | } | |
2624d5fa MB |
129 | |
130 | if (count >= PAGE_SIZE - 1) | |
131 | break; | |
132 | ||
133 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
134 | if (count >= PAGE_SIZE - 1) | |
135 | break; | |
136 | } | |
137 | ||
138 | /* Truncate count; min() would cause a warning */ | |
139 | if (count >= PAGE_SIZE) | |
140 | count = PAGE_SIZE - 1; | |
141 | ||
142 | return count; | |
143 | } | |
144 | static ssize_t codec_reg_show(struct device *dev, | |
145 | struct device_attribute *attr, char *buf) | |
146 | { | |
f0fba2ad LG |
147 | struct snd_soc_pcm_runtime *rtd = |
148 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
149 | ||
150 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
151 | } |
152 | ||
153 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
154 | ||
dbe21408 MB |
155 | static ssize_t pmdown_time_show(struct device *dev, |
156 | struct device_attribute *attr, char *buf) | |
157 | { | |
f0fba2ad LG |
158 | struct snd_soc_pcm_runtime *rtd = |
159 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 160 | |
f0fba2ad | 161 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
162 | } |
163 | ||
164 | static ssize_t pmdown_time_set(struct device *dev, | |
165 | struct device_attribute *attr, | |
166 | const char *buf, size_t count) | |
167 | { | |
f0fba2ad LG |
168 | struct snd_soc_pcm_runtime *rtd = |
169 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 170 | int ret; |
dbe21408 | 171 | |
c593b520 MB |
172 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
173 | if (ret) | |
174 | return ret; | |
dbe21408 MB |
175 | |
176 | return count; | |
177 | } | |
178 | ||
179 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
180 | ||
2624d5fa MB |
181 | #ifdef CONFIG_DEBUG_FS |
182 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
183 | { | |
184 | file->private_data = inode->i_private; | |
185 | return 0; | |
186 | } | |
187 | ||
188 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
189 | size_t count, loff_t *ppos) | |
190 | { | |
191 | ssize_t ret; | |
192 | struct snd_soc_codec *codec = file->private_data; | |
193 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
194 | if (!buf) | |
195 | return -ENOMEM; | |
196 | ret = soc_codec_reg_show(codec, buf); | |
197 | if (ret >= 0) | |
198 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
199 | kfree(buf); | |
200 | return ret; | |
201 | } | |
202 | ||
203 | static ssize_t codec_reg_write_file(struct file *file, | |
204 | const char __user *user_buf, size_t count, loff_t *ppos) | |
205 | { | |
206 | char buf[32]; | |
207 | int buf_size; | |
208 | char *start = buf; | |
209 | unsigned long reg, value; | |
210 | int step = 1; | |
211 | struct snd_soc_codec *codec = file->private_data; | |
212 | ||
213 | buf_size = min(count, (sizeof(buf)-1)); | |
214 | if (copy_from_user(buf, user_buf, buf_size)) | |
215 | return -EFAULT; | |
216 | buf[buf_size] = 0; | |
217 | ||
f0fba2ad LG |
218 | if (codec->driver->reg_cache_step) |
219 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
220 | |
221 | while (*start == ' ') | |
222 | start++; | |
223 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 224 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
225 | return -EINVAL; |
226 | while (*start == ' ') | |
227 | start++; | |
228 | if (strict_strtoul(start, 16, &value)) | |
229 | return -EINVAL; | |
f0fba2ad | 230 | codec->driver->write(codec, reg, value); |
2624d5fa MB |
231 | return buf_size; |
232 | } | |
233 | ||
234 | static const struct file_operations codec_reg_fops = { | |
235 | .open = codec_reg_open_file, | |
236 | .read = codec_reg_read_file, | |
237 | .write = codec_reg_write_file, | |
6038f373 | 238 | .llseek = default_llseek, |
2624d5fa MB |
239 | }; |
240 | ||
241 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
242 | { | |
d6ce4cf3 JN |
243 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
244 | ||
245 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
246 | debugfs_card_root); | |
2624d5fa MB |
247 | if (!codec->debugfs_codec_root) { |
248 | printk(KERN_WARNING | |
249 | "ASoC: Failed to create codec debugfs directory\n"); | |
250 | return; | |
251 | } | |
252 | ||
253 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
254 | codec->debugfs_codec_root, | |
255 | codec, &codec_reg_fops); | |
256 | if (!codec->debugfs_reg) | |
257 | printk(KERN_WARNING | |
258 | "ASoC: Failed to create codec register debugfs file\n"); | |
259 | ||
ce6120cc | 260 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 261 | codec->debugfs_codec_root); |
ce6120cc | 262 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
263 | printk(KERN_WARNING |
264 | "Failed to create DAPM debugfs directory\n"); | |
265 | ||
ce6120cc | 266 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
267 | } |
268 | ||
269 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
270 | { | |
271 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
272 | } | |
273 | ||
c3c5a19a MB |
274 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
275 | size_t count, loff_t *ppos) | |
276 | { | |
277 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 278 | ssize_t len, ret = 0; |
c3c5a19a MB |
279 | struct snd_soc_codec *codec; |
280 | ||
281 | if (!buf) | |
282 | return -ENOMEM; | |
283 | ||
2b194f9d MB |
284 | list_for_each_entry(codec, &codec_list, list) { |
285 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
286 | codec->name); | |
287 | if (len >= 0) | |
288 | ret += len; | |
289 | if (ret > PAGE_SIZE) { | |
290 | ret = PAGE_SIZE; | |
291 | break; | |
292 | } | |
293 | } | |
c3c5a19a MB |
294 | |
295 | if (ret >= 0) | |
296 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
297 | ||
298 | kfree(buf); | |
299 | ||
300 | return ret; | |
301 | } | |
302 | ||
303 | static const struct file_operations codec_list_fops = { | |
304 | .read = codec_list_read_file, | |
305 | .llseek = default_llseek,/* read accesses f_pos */ | |
306 | }; | |
307 | ||
f3208780 MB |
308 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
309 | size_t count, loff_t *ppos) | |
310 | { | |
311 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 312 | ssize_t len, ret = 0; |
f3208780 MB |
313 | struct snd_soc_dai *dai; |
314 | ||
315 | if (!buf) | |
316 | return -ENOMEM; | |
317 | ||
2b194f9d MB |
318 | list_for_each_entry(dai, &dai_list, list) { |
319 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
320 | if (len >= 0) | |
321 | ret += len; | |
322 | if (ret > PAGE_SIZE) { | |
323 | ret = PAGE_SIZE; | |
324 | break; | |
325 | } | |
326 | } | |
f3208780 | 327 | |
2b194f9d | 328 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
329 | |
330 | kfree(buf); | |
331 | ||
332 | return ret; | |
333 | } | |
334 | ||
335 | static const struct file_operations dai_list_fops = { | |
336 | .read = dai_list_read_file, | |
337 | .llseek = default_llseek,/* read accesses f_pos */ | |
338 | }; | |
339 | ||
19c7ac27 MB |
340 | static ssize_t platform_list_read_file(struct file *file, |
341 | char __user *user_buf, | |
342 | size_t count, loff_t *ppos) | |
343 | { | |
344 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 345 | ssize_t len, ret = 0; |
19c7ac27 MB |
346 | struct snd_soc_platform *platform; |
347 | ||
348 | if (!buf) | |
349 | return -ENOMEM; | |
350 | ||
2b194f9d MB |
351 | list_for_each_entry(platform, &platform_list, list) { |
352 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
353 | platform->name); | |
354 | if (len >= 0) | |
355 | ret += len; | |
356 | if (ret > PAGE_SIZE) { | |
357 | ret = PAGE_SIZE; | |
358 | break; | |
359 | } | |
360 | } | |
19c7ac27 | 361 | |
2b194f9d | 362 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
363 | |
364 | kfree(buf); | |
365 | ||
366 | return ret; | |
367 | } | |
368 | ||
369 | static const struct file_operations platform_list_fops = { | |
370 | .read = platform_list_read_file, | |
371 | .llseek = default_llseek,/* read accesses f_pos */ | |
372 | }; | |
373 | ||
a6052154 JN |
374 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
375 | { | |
376 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
377 | debugfs_root); | |
3a45b867 | 378 | if (!card->debugfs_card_root) { |
a6052154 JN |
379 | dev_warn(card->dev, |
380 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
381 | return; |
382 | } | |
383 | ||
384 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
385 | card->debugfs_card_root, | |
386 | &card->pop_time); | |
387 | if (!card->debugfs_pop_time) | |
388 | dev_warn(card->dev, | |
389 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
390 | } |
391 | ||
392 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
393 | { | |
394 | debugfs_remove_recursive(card->debugfs_card_root); | |
395 | } | |
396 | ||
2624d5fa MB |
397 | #else |
398 | ||
399 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
400 | { | |
401 | } | |
402 | ||
403 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
404 | { | |
405 | } | |
b95fccbc AL |
406 | |
407 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
408 | { | |
409 | } | |
410 | ||
411 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
412 | { | |
413 | } | |
2624d5fa MB |
414 | #endif |
415 | ||
db2a4165 FM |
416 | #ifdef CONFIG_SND_SOC_AC97_BUS |
417 | /* unregister ac97 codec */ | |
418 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
419 | { | |
420 | if (codec->ac97->dev.bus) | |
421 | device_unregister(&codec->ac97->dev); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | /* stop no dev release warning */ | |
426 | static void soc_ac97_device_release(struct device *dev){} | |
427 | ||
428 | /* register ac97 codec to bus */ | |
429 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
430 | { | |
431 | int err; | |
432 | ||
433 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 434 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
435 | codec->ac97->dev.release = soc_ac97_device_release; |
436 | ||
bb072bf0 | 437 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 438 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
439 | err = device_register(&codec->ac97->dev); |
440 | if (err < 0) { | |
441 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
442 | codec->ac97->dev.bus = NULL; | |
443 | return err; | |
444 | } | |
445 | return 0; | |
446 | } | |
447 | #endif | |
448 | ||
06f409d7 MB |
449 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
450 | { | |
451 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
452 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
453 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
454 | int ret; |
455 | ||
f0fba2ad LG |
456 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
457 | rtd->dai_link->symmetric_rates) { | |
458 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
459 | rtd->rate); | |
06f409d7 MB |
460 | |
461 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
462 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
463 | rtd->rate, |
464 | rtd->rate); | |
06f409d7 | 465 | if (ret < 0) { |
f0fba2ad | 466 | dev_err(&rtd->dev, |
06f409d7 MB |
467 | "Unable to apply rate symmetry constraint: %d\n", ret); |
468 | return ret; | |
469 | } | |
470 | } | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
db2a4165 FM |
475 | /* |
476 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
477 | * then initialized and any private data can be allocated. This also calls | |
478 | * startup for the cpu DAI, platform, machine and codec DAI. | |
479 | */ | |
480 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
481 | { | |
482 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 483 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
484 | struct snd_soc_platform *platform = rtd->platform; |
485 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
486 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
487 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
488 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
489 | int ret = 0; |
490 | ||
491 | mutex_lock(&pcm_mutex); | |
492 | ||
493 | /* startup the audio subsystem */ | |
f0fba2ad LG |
494 | if (cpu_dai->driver->ops->startup) { |
495 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
496 | if (ret < 0) { |
497 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 498 | cpu_dai->name); |
db2a4165 FM |
499 | goto out; |
500 | } | |
501 | } | |
502 | ||
f0fba2ad LG |
503 | if (platform->driver->ops->open) { |
504 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
505 | if (ret < 0) { |
506 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
507 | goto platform_err; | |
508 | } | |
509 | } | |
510 | ||
f0fba2ad LG |
511 | if (codec_dai->driver->ops->startup) { |
512 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 513 | if (ret < 0) { |
cb666e5b LG |
514 | printk(KERN_ERR "asoc: can't open codec %s\n", |
515 | codec_dai->name); | |
516 | goto codec_dai_err; | |
db2a4165 FM |
517 | } |
518 | } | |
519 | ||
f0fba2ad LG |
520 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
521 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 522 | if (ret < 0) { |
f0fba2ad | 523 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 524 | goto machine_err; |
db2a4165 FM |
525 | } |
526 | } | |
527 | ||
a00f90f9 | 528 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
529 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
530 | runtime->hw.rate_min = | |
f0fba2ad LG |
531 | max(codec_dai_drv->playback.rate_min, |
532 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 533 | runtime->hw.rate_max = |
f0fba2ad LG |
534 | min(codec_dai_drv->playback.rate_max, |
535 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 536 | runtime->hw.channels_min = |
f0fba2ad LG |
537 | max(codec_dai_drv->playback.channels_min, |
538 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 539 | runtime->hw.channels_max = |
f0fba2ad LG |
540 | min(codec_dai_drv->playback.channels_max, |
541 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 542 | runtime->hw.formats = |
f0fba2ad | 543 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 544 | runtime->hw.rates = |
f0fba2ad LG |
545 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
546 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 547 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
548 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
549 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 550 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 551 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
552 | } else { |
553 | runtime->hw.rate_min = | |
f0fba2ad LG |
554 | max(codec_dai_drv->capture.rate_min, |
555 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 556 | runtime->hw.rate_max = |
f0fba2ad LG |
557 | min(codec_dai_drv->capture.rate_max, |
558 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 559 | runtime->hw.channels_min = |
f0fba2ad LG |
560 | max(codec_dai_drv->capture.channels_min, |
561 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 562 | runtime->hw.channels_max = |
f0fba2ad LG |
563 | min(codec_dai_drv->capture.channels_max, |
564 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 565 | runtime->hw.formats = |
f0fba2ad | 566 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 567 | runtime->hw.rates = |
f0fba2ad LG |
568 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
569 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 570 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
571 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
572 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 573 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 574 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
575 | } |
576 | ||
577 | snd_pcm_limit_hw_rates(runtime); | |
578 | if (!runtime->hw.rates) { | |
579 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 580 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 581 | goto config_err; |
db2a4165 FM |
582 | } |
583 | if (!runtime->hw.formats) { | |
584 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 585 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 586 | goto config_err; |
db2a4165 FM |
587 | } |
588 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
589 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 590 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 591 | goto config_err; |
db2a4165 FM |
592 | } |
593 | ||
06f409d7 MB |
594 | /* Symmetry only applies if we've already got an active stream. */ |
595 | if (cpu_dai->active || codec_dai->active) { | |
596 | ret = soc_pcm_apply_symmetry(substream); | |
597 | if (ret != 0) | |
bb1c0478 | 598 | goto config_err; |
06f409d7 MB |
599 | } |
600 | ||
f0fba2ad LG |
601 | pr_debug("asoc: %s <-> %s info:\n", |
602 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
603 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
604 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
605 | runtime->hw.channels_max); | |
606 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
607 | runtime->hw.rate_max); | |
db2a4165 | 608 | |
14dc5734 | 609 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
610 | cpu_dai->playback_active++; |
611 | codec_dai->playback_active++; | |
14dc5734 | 612 | } else { |
f0fba2ad LG |
613 | cpu_dai->capture_active++; |
614 | codec_dai->capture_active++; | |
14dc5734 JB |
615 | } |
616 | cpu_dai->active++; | |
617 | codec_dai->active++; | |
f0fba2ad | 618 | rtd->codec->active++; |
db2a4165 FM |
619 | mutex_unlock(&pcm_mutex); |
620 | return 0; | |
621 | ||
bb1c0478 | 622 | config_err: |
f0fba2ad LG |
623 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
624 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 625 | |
bb1c0478 | 626 | machine_err: |
f0fba2ad LG |
627 | if (codec_dai->driver->ops->shutdown) |
628 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 629 | |
cb666e5b | 630 | codec_dai_err: |
f0fba2ad LG |
631 | if (platform->driver->ops->close) |
632 | platform->driver->ops->close(substream); | |
db2a4165 FM |
633 | |
634 | platform_err: | |
f0fba2ad LG |
635 | if (cpu_dai->driver->ops->shutdown) |
636 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
637 | out: |
638 | mutex_unlock(&pcm_mutex); | |
639 | return ret; | |
640 | } | |
641 | ||
642 | /* | |
3a4fa0a2 | 643 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
644 | * This is to ensure there are no pops or clicks in between any music tracks |
645 | * due to DAPM power cycling. | |
646 | */ | |
4484bb2e | 647 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 648 | { |
f0fba2ad LG |
649 | struct snd_soc_pcm_runtime *rtd = |
650 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
651 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
652 | |
653 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
654 | |
655 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
656 | codec_dai->driver->playback.stream_name, | |
657 | codec_dai->playback_active ? "active" : "inactive", | |
658 | codec_dai->pop_wait ? "yes" : "no"); | |
659 | ||
660 | /* are we waiting on this codec DAI stream */ | |
661 | if (codec_dai->pop_wait == 1) { | |
662 | codec_dai->pop_wait = 0; | |
663 | snd_soc_dapm_stream_event(rtd, | |
664 | codec_dai->driver->playback.stream_name, | |
665 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 666 | } |
f0fba2ad | 667 | |
db2a4165 FM |
668 | mutex_unlock(&pcm_mutex); |
669 | } | |
670 | ||
671 | /* | |
672 | * Called by ALSA when a PCM substream is closed. Private data can be | |
673 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
674 | * shutdown. | |
675 | */ | |
676 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
677 | { | |
678 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
679 | struct snd_soc_platform *platform = rtd->platform; |
680 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
681 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
682 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
683 | |
684 | mutex_lock(&pcm_mutex); | |
685 | ||
14dc5734 | 686 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
687 | cpu_dai->playback_active--; |
688 | codec_dai->playback_active--; | |
14dc5734 | 689 | } else { |
f0fba2ad LG |
690 | cpu_dai->capture_active--; |
691 | codec_dai->capture_active--; | |
db2a4165 | 692 | } |
14dc5734 JB |
693 | |
694 | cpu_dai->active--; | |
695 | codec_dai->active--; | |
db2a4165 FM |
696 | codec->active--; |
697 | ||
6010b2da MB |
698 | /* Muting the DAC suppresses artifacts caused during digital |
699 | * shutdown, for example from stopping clocks. | |
700 | */ | |
701 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
702 | snd_soc_dai_digital_mute(codec_dai, 1); | |
703 | ||
f0fba2ad LG |
704 | if (cpu_dai->driver->ops->shutdown) |
705 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 706 | |
f0fba2ad LG |
707 | if (codec_dai->driver->ops->shutdown) |
708 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 709 | |
f0fba2ad LG |
710 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
711 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 712 | |
f0fba2ad LG |
713 | if (platform->driver->ops->close) |
714 | platform->driver->ops->close(substream); | |
715 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
716 | |
717 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
718 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 719 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
720 | schedule_delayed_work(&rtd->delayed_work, |
721 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
722 | } else { |
723 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
724 | snd_soc_dapm_stream_event(rtd, |
725 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 726 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
727 | } |
728 | ||
729 | mutex_unlock(&pcm_mutex); | |
730 | return 0; | |
731 | } | |
732 | ||
733 | /* | |
734 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
735 | * rate, etc. This function is non atomic and can be called multiple times, | |
736 | * it can refer to the runtime info. | |
737 | */ | |
738 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
739 | { | |
740 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
741 | struct snd_soc_platform *platform = rtd->platform; |
742 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
743 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
744 | int ret = 0; |
745 | ||
746 | mutex_lock(&pcm_mutex); | |
cb666e5b | 747 | |
f0fba2ad LG |
748 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
749 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
750 | if (ret < 0) { |
751 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
752 | goto out; | |
753 | } | |
754 | } | |
755 | ||
f0fba2ad LG |
756 | if (platform->driver->ops->prepare) { |
757 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
758 | if (ret < 0) { |
759 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 760 | goto out; |
a71a468a | 761 | } |
db2a4165 FM |
762 | } |
763 | ||
f0fba2ad LG |
764 | if (codec_dai->driver->ops->prepare) { |
765 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
766 | if (ret < 0) { |
767 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 768 | goto out; |
a71a468a | 769 | } |
db2a4165 FM |
770 | } |
771 | ||
f0fba2ad LG |
772 | if (cpu_dai->driver->ops->prepare) { |
773 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
774 | if (ret < 0) { |
775 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
776 | goto out; | |
777 | } | |
778 | } | |
db2a4165 | 779 | |
d45f6219 MB |
780 | /* cancel any delayed stream shutdown that is pending */ |
781 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
782 | codec_dai->pop_wait) { | |
783 | codec_dai->pop_wait = 0; | |
f0fba2ad | 784 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 785 | } |
db2a4165 | 786 | |
452c5eaa | 787 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
788 | snd_soc_dapm_stream_event(rtd, |
789 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
790 | SND_SOC_DAPM_STREAM_START); |
791 | else | |
f0fba2ad LG |
792 | snd_soc_dapm_stream_event(rtd, |
793 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 794 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 795 | |
452c5eaa | 796 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
797 | |
798 | out: | |
799 | mutex_unlock(&pcm_mutex); | |
800 | return ret; | |
801 | } | |
802 | ||
803 | /* | |
804 | * Called by ALSA when the hardware params are set by application. This | |
805 | * function can also be called multiple times and can allocate buffers | |
806 | * (using snd_pcm_lib_* ). It's non-atomic. | |
807 | */ | |
808 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
809 | struct snd_pcm_hw_params *params) | |
810 | { | |
811 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
812 | struct snd_soc_platform *platform = rtd->platform; |
813 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
814 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
815 | int ret = 0; |
816 | ||
817 | mutex_lock(&pcm_mutex); | |
818 | ||
f0fba2ad LG |
819 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
820 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
821 | if (ret < 0) { |
822 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 823 | goto out; |
cb666e5b | 824 | } |
db2a4165 FM |
825 | } |
826 | ||
f0fba2ad LG |
827 | if (codec_dai->driver->ops->hw_params) { |
828 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
829 | if (ret < 0) { |
830 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
831 | codec_dai->name); |
832 | goto codec_err; | |
db2a4165 FM |
833 | } |
834 | } | |
835 | ||
f0fba2ad LG |
836 | if (cpu_dai->driver->ops->hw_params) { |
837 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 838 | if (ret < 0) { |
3ff3f64b | 839 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 840 | cpu_dai->name); |
db2a4165 FM |
841 | goto interface_err; |
842 | } | |
843 | } | |
844 | ||
f0fba2ad LG |
845 | if (platform->driver->ops->hw_params) { |
846 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 847 | if (ret < 0) { |
3ff3f64b | 848 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
849 | platform->name); |
850 | goto platform_err; | |
851 | } | |
852 | } | |
853 | ||
f0fba2ad | 854 | rtd->rate = params_rate(params); |
06f409d7 | 855 | |
db2a4165 FM |
856 | out: |
857 | mutex_unlock(&pcm_mutex); | |
858 | return ret; | |
859 | ||
db2a4165 | 860 | platform_err: |
f0fba2ad LG |
861 | if (cpu_dai->driver->ops->hw_free) |
862 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
863 | |
864 | interface_err: | |
f0fba2ad LG |
865 | if (codec_dai->driver->ops->hw_free) |
866 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
867 | |
868 | codec_err: | |
f0fba2ad LG |
869 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
870 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
871 | |
872 | mutex_unlock(&pcm_mutex); | |
873 | return ret; | |
874 | } | |
875 | ||
876 | /* | |
a00f90f9 | 877 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
878 | */ |
879 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
880 | { | |
881 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
882 | struct snd_soc_platform *platform = rtd->platform; |
883 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
884 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
885 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
886 | |
887 | mutex_lock(&pcm_mutex); | |
888 | ||
889 | /* apply codec digital mute */ | |
8c6529db LG |
890 | if (!codec->active) |
891 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
892 | |
893 | /* free any machine hw params */ | |
f0fba2ad LG |
894 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
895 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
896 | |
897 | /* free any DMA resources */ | |
f0fba2ad LG |
898 | if (platform->driver->ops->hw_free) |
899 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 900 | |
a00f90f9 | 901 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
902 | if (codec_dai->driver->ops->hw_free) |
903 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 904 | |
f0fba2ad LG |
905 | if (cpu_dai->driver->ops->hw_free) |
906 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
907 | |
908 | mutex_unlock(&pcm_mutex); | |
909 | return 0; | |
910 | } | |
911 | ||
912 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
913 | { | |
914 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
915 | struct snd_soc_platform *platform = rtd->platform; |
916 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
917 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
918 | int ret; |
919 | ||
f0fba2ad LG |
920 | if (codec_dai->driver->ops->trigger) { |
921 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
922 | if (ret < 0) |
923 | return ret; | |
924 | } | |
925 | ||
f0fba2ad LG |
926 | if (platform->driver->ops->trigger) { |
927 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
928 | if (ret < 0) |
929 | return ret; | |
930 | } | |
931 | ||
f0fba2ad LG |
932 | if (cpu_dai->driver->ops->trigger) { |
933 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
934 | if (ret < 0) |
935 | return ret; | |
936 | } | |
937 | return 0; | |
938 | } | |
939 | ||
377b6f62 PU |
940 | /* |
941 | * soc level wrapper for pointer callback | |
258020d0 PU |
942 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
943 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
944 | */ |
945 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
946 | { | |
947 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
948 | struct snd_soc_platform *platform = rtd->platform; |
949 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
950 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 951 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 952 | snd_pcm_uframes_t offset = 0; |
258020d0 | 953 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 954 | |
f0fba2ad LG |
955 | if (platform->driver->ops->pointer) |
956 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 957 | |
f0fba2ad LG |
958 | if (cpu_dai->driver->ops->delay) |
959 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 960 | |
f0fba2ad LG |
961 | if (codec_dai->driver->ops->delay) |
962 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 963 | |
f0fba2ad LG |
964 | if (platform->driver->delay) |
965 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
966 | |
967 | runtime->delay = delay; | |
968 | ||
377b6f62 PU |
969 | return offset; |
970 | } | |
971 | ||
db2a4165 FM |
972 | /* ASoC PCM operations */ |
973 | static struct snd_pcm_ops soc_pcm_ops = { | |
974 | .open = soc_pcm_open, | |
975 | .close = soc_codec_close, | |
976 | .hw_params = soc_pcm_hw_params, | |
977 | .hw_free = soc_pcm_hw_free, | |
978 | .prepare = soc_pcm_prepare, | |
979 | .trigger = soc_pcm_trigger, | |
377b6f62 | 980 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
981 | }; |
982 | ||
983 | #ifdef CONFIG_PM | |
984 | /* powers down audio subsystem for suspend */ | |
416356fc | 985 | static int soc_suspend(struct device *dev) |
db2a4165 | 986 | { |
416356fc | 987 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 988 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
2eea392d | 989 | struct snd_soc_codec *codec; |
db2a4165 FM |
990 | int i; |
991 | ||
e3509ff0 DM |
992 | /* If the initialization of this soc device failed, there is no codec |
993 | * associated with it. Just bail out in this case. | |
994 | */ | |
f0fba2ad | 995 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
996 | return 0; |
997 | ||
6ed25978 AG |
998 | /* Due to the resume being scheduled into a workqueue we could |
999 | * suspend before that's finished - wait for it to complete. | |
1000 | */ | |
f0fba2ad LG |
1001 | snd_power_lock(card->snd_card); |
1002 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
1003 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
1004 | |
1005 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 1006 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 1007 | |
a00f90f9 | 1008 | /* mute any active DACs */ |
f0fba2ad LG |
1009 | for (i = 0; i < card->num_rtd; i++) { |
1010 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1011 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1012 | |
f0fba2ad | 1013 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1014 | continue; |
1015 | ||
f0fba2ad LG |
1016 | if (drv->ops->digital_mute && dai->playback_active) |
1017 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1018 | } |
1019 | ||
4ccab3e7 | 1020 | /* suspend all pcms */ |
f0fba2ad LG |
1021 | for (i = 0; i < card->num_rtd; i++) { |
1022 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1023 | continue; |
1024 | ||
f0fba2ad | 1025 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1026 | } |
4ccab3e7 | 1027 | |
87506549 | 1028 | if (card->suspend_pre) |
416356fc | 1029 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 1030 | |
f0fba2ad LG |
1031 | for (i = 0; i < card->num_rtd; i++) { |
1032 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1033 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1034 | |
f0fba2ad | 1035 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1036 | continue; |
1037 | ||
f0fba2ad LG |
1038 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1039 | cpu_dai->driver->suspend(cpu_dai); | |
1040 | if (platform->driver->suspend && !platform->suspended) { | |
1041 | platform->driver->suspend(cpu_dai); | |
1042 | platform->suspended = 1; | |
1043 | } | |
db2a4165 FM |
1044 | } |
1045 | ||
1046 | /* close any waiting streams and save state */ | |
f0fba2ad LG |
1047 | for (i = 0; i < card->num_rtd; i++) { |
1048 | run_delayed_work(&card->rtd[i].delayed_work); | |
ce6120cc | 1049 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1050 | } |
db2a4165 | 1051 | |
f0fba2ad LG |
1052 | for (i = 0; i < card->num_rtd; i++) { |
1053 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1054 | |
f0fba2ad | 1055 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1056 | continue; |
1057 | ||
f0fba2ad LG |
1058 | if (driver->playback.stream_name != NULL) |
1059 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1060 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1061 | |
1062 | if (driver->capture.stream_name != NULL) | |
1063 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1064 | SND_SOC_DAPM_STREAM_SUSPEND); |
1065 | } | |
1066 | ||
f0fba2ad | 1067 | /* suspend all CODECs */ |
2eea392d | 1068 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1069 | /* If there are paths active then the CODEC will be held with |
1070 | * bias _ON and should not be suspended. */ | |
1071 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1072 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1073 | case SND_SOC_BIAS_STANDBY: |
1074 | case SND_SOC_BIAS_OFF: | |
1075 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1076 | codec->suspended = 1; | |
1077 | break; | |
1078 | default: | |
1079 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1080 | break; | |
1081 | } | |
1547aba9 MB |
1082 | } |
1083 | } | |
db2a4165 | 1084 | |
f0fba2ad LG |
1085 | for (i = 0; i < card->num_rtd; i++) { |
1086 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1087 | |
f0fba2ad | 1088 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1089 | continue; |
1090 | ||
f0fba2ad LG |
1091 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1092 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1093 | } |
1094 | ||
87506549 | 1095 | if (card->suspend_post) |
416356fc | 1096 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1097 | |
1098 | return 0; | |
1099 | } | |
1100 | ||
6ed25978 AG |
1101 | /* deferred resume work, so resume can complete before we finished |
1102 | * setting our codec back up, which can be very slow on I2C | |
1103 | */ | |
1104 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1105 | { |
f0fba2ad LG |
1106 | struct snd_soc_card *card = |
1107 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1108 | struct platform_device *pdev = to_platform_device(card->dev); | |
2eea392d | 1109 | struct snd_soc_codec *codec; |
db2a4165 FM |
1110 | int i; |
1111 | ||
6ed25978 AG |
1112 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1113 | * so userspace apps are blocked from touching us | |
1114 | */ | |
1115 | ||
f0fba2ad | 1116 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1117 | |
9949788b | 1118 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1119 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1120 | |
87506549 MB |
1121 | if (card->resume_pre) |
1122 | card->resume_pre(pdev); | |
db2a4165 | 1123 | |
f0fba2ad LG |
1124 | /* resume AC97 DAIs */ |
1125 | for (i = 0; i < card->num_rtd; i++) { | |
1126 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1127 | |
f0fba2ad | 1128 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1129 | continue; |
1130 | ||
f0fba2ad LG |
1131 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1132 | cpu_dai->driver->resume(cpu_dai); | |
1133 | } | |
1134 | ||
2eea392d | 1135 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1136 | /* If the CODEC was idle over suspend then it will have been |
1137 | * left with bias OFF or STANDBY and suspended so we must now | |
1138 | * resume. Otherwise the suspend was suppressed. | |
1139 | */ | |
1140 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1141 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1142 | case SND_SOC_BIAS_STANDBY: |
1143 | case SND_SOC_BIAS_OFF: | |
1144 | codec->driver->resume(codec); | |
1145 | codec->suspended = 0; | |
1146 | break; | |
1147 | default: | |
1148 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1149 | break; | |
1150 | } | |
1547aba9 MB |
1151 | } |
1152 | } | |
db2a4165 | 1153 | |
f0fba2ad LG |
1154 | for (i = 0; i < card->num_rtd; i++) { |
1155 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1156 | |
f0fba2ad | 1157 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1158 | continue; |
1159 | ||
f0fba2ad LG |
1160 | if (driver->playback.stream_name != NULL) |
1161 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1162 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1163 | |
1164 | if (driver->capture.stream_name != NULL) | |
1165 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1166 | SND_SOC_DAPM_STREAM_RESUME); |
1167 | } | |
1168 | ||
3ff3f64b | 1169 | /* unmute any active DACs */ |
f0fba2ad LG |
1170 | for (i = 0; i < card->num_rtd; i++) { |
1171 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1172 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1173 | |
f0fba2ad | 1174 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1175 | continue; |
1176 | ||
f0fba2ad LG |
1177 | if (drv->ops->digital_mute && dai->playback_active) |
1178 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1179 | } |
1180 | ||
f0fba2ad LG |
1181 | for (i = 0; i < card->num_rtd; i++) { |
1182 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1183 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1184 | |
f0fba2ad | 1185 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1186 | continue; |
1187 | ||
f0fba2ad LG |
1188 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1189 | cpu_dai->driver->resume(cpu_dai); | |
1190 | if (platform->driver->resume && platform->suspended) { | |
1191 | platform->driver->resume(cpu_dai); | |
1192 | platform->suspended = 0; | |
1193 | } | |
db2a4165 FM |
1194 | } |
1195 | ||
87506549 MB |
1196 | if (card->resume_post) |
1197 | card->resume_post(pdev); | |
db2a4165 | 1198 | |
f0fba2ad | 1199 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1200 | |
1201 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1202 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1203 | } |
1204 | ||
1205 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1206 | static int soc_resume(struct device *dev) |
6ed25978 | 1207 | { |
416356fc | 1208 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1209 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1210 | int i; | |
b9dd94a8 | 1211 | |
64ab9baa MB |
1212 | /* AC97 devices might have other drivers hanging off them so |
1213 | * need to resume immediately. Other drivers don't have that | |
1214 | * problem and may take a substantial amount of time to resume | |
1215 | * due to I/O costs and anti-pop so handle them out of line. | |
1216 | */ | |
f0fba2ad LG |
1217 | for (i = 0; i < card->num_rtd; i++) { |
1218 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1219 | if (cpu_dai->driver->ac97_control) { | |
1220 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1221 | soc_resume_deferred(&card->deferred_resume_work); | |
1222 | } else { | |
1223 | dev_dbg(dev, "Scheduling resume work\n"); | |
1224 | if (!schedule_work(&card->deferred_resume_work)) | |
1225 | dev_err(dev, "resume work item may be lost\n"); | |
1226 | } | |
64ab9baa | 1227 | } |
6ed25978 | 1228 | |
db2a4165 FM |
1229 | return 0; |
1230 | } | |
db2a4165 FM |
1231 | #else |
1232 | #define soc_suspend NULL | |
1233 | #define soc_resume NULL | |
1234 | #endif | |
1235 | ||
02a06d30 BS |
1236 | static struct snd_soc_dai_ops null_dai_ops = { |
1237 | }; | |
1238 | ||
f0fba2ad | 1239 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1240 | { |
f0fba2ad LG |
1241 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1242 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1243 | struct snd_soc_codec *codec; |
435c5e25 | 1244 | struct snd_soc_platform *platform; |
f0fba2ad | 1245 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1246 | |
f0fba2ad LG |
1247 | if (rtd->complete) |
1248 | return 1; | |
1249 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1250 | |
f0fba2ad LG |
1251 | /* do we already have the CPU DAI for this link ? */ |
1252 | if (rtd->cpu_dai) { | |
1253 | goto find_codec; | |
1254 | } | |
1255 | /* no, then find CPU DAI from registered DAIs*/ | |
1256 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1257 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1258 | ||
1259 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1260 | return -ENODEV; | |
1261 | ||
1262 | rtd->cpu_dai = cpu_dai; | |
1263 | goto find_codec; | |
435c5e25 | 1264 | } |
435c5e25 | 1265 | } |
f0fba2ad LG |
1266 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1267 | dai_link->cpu_dai_name); | |
6308419a | 1268 | |
f0fba2ad LG |
1269 | find_codec: |
1270 | /* do we already have the CODEC for this link ? */ | |
1271 | if (rtd->codec) { | |
1272 | goto find_platform; | |
1273 | } | |
1274 | ||
1275 | /* no, then find CODEC from registered CODECs*/ | |
1276 | list_for_each_entry(codec, &codec_list, list) { | |
1277 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1278 | rtd->codec = codec; | |
1279 | ||
1280 | if (!try_module_get(codec->dev->driver->owner)) | |
1281 | return -ENODEV; | |
1282 | ||
1283 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ | |
1284 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1285 | if (codec->dev == codec_dai->dev && | |
1286 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1287 | rtd->codec_dai = codec_dai; | |
1288 | goto find_platform; | |
1289 | } | |
435c5e25 | 1290 | } |
f0fba2ad LG |
1291 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1292 | dai_link->codec_dai_name); | |
1293 | ||
1294 | goto find_platform; | |
435c5e25 | 1295 | } |
f0fba2ad LG |
1296 | } |
1297 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1298 | dai_link->codec_name); | |
6b05eda6 | 1299 | |
f0fba2ad LG |
1300 | find_platform: |
1301 | /* do we already have the CODEC DAI for this link ? */ | |
1302 | if (rtd->platform) { | |
1303 | goto out; | |
c5af3a2e | 1304 | } |
f0fba2ad LG |
1305 | /* no, then find CPU DAI from registered DAIs*/ |
1306 | list_for_each_entry(platform, &platform_list, list) { | |
1307 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
c5af3a2e | 1308 | |
f0fba2ad LG |
1309 | if (!try_module_get(platform->dev->driver->owner)) |
1310 | return -ENODEV; | |
1311 | ||
1312 | rtd->platform = platform; | |
1313 | goto out; | |
1314 | } | |
02a06d30 BS |
1315 | } |
1316 | ||
f0fba2ad LG |
1317 | dev_dbg(card->dev, "platform %s not registered\n", |
1318 | dai_link->platform_name); | |
1319 | return 0; | |
1320 | ||
1321 | out: | |
1322 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1323 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1324 | rtd->complete = 1; | |
1325 | card->num_rtd++; | |
1326 | } | |
1327 | return 1; | |
1328 | } | |
1329 | ||
1330 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) | |
1331 | { | |
1332 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1333 | struct snd_soc_codec *codec = rtd->codec; | |
1334 | struct snd_soc_platform *platform = rtd->platform; | |
1335 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1336 | int err; | |
1337 | ||
1338 | /* unregister the rtd device */ | |
1339 | if (rtd->dev_registered) { | |
1340 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
1341 | device_unregister(&rtd->dev); | |
1342 | rtd->dev_registered = 0; | |
1343 | } | |
1344 | ||
1345 | /* remove the CODEC DAI */ | |
1346 | if (codec_dai && codec_dai->probed) { | |
1347 | if (codec_dai->driver->remove) { | |
1348 | err = codec_dai->driver->remove(codec_dai); | |
1349 | if (err < 0) | |
1350 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1351 | } |
f0fba2ad LG |
1352 | codec_dai->probed = 0; |
1353 | list_del(&codec_dai->card_list); | |
1354 | } | |
6b05eda6 | 1355 | |
f0fba2ad LG |
1356 | /* remove the platform */ |
1357 | if (platform && platform->probed) { | |
1358 | if (platform->driver->remove) { | |
1359 | err = platform->driver->remove(platform); | |
1360 | if (err < 0) | |
1361 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1362 | } | |
1363 | platform->probed = 0; | |
1364 | list_del(&platform->card_list); | |
1365 | module_put(platform->dev->driver->owner); | |
1366 | } | |
435c5e25 | 1367 | |
f0fba2ad LG |
1368 | /* remove the CODEC */ |
1369 | if (codec && codec->probed) { | |
1370 | if (codec->driver->remove) { | |
1371 | err = codec->driver->remove(codec); | |
1372 | if (err < 0) | |
1373 | printk(KERN_ERR "asoc: failed to remove %s\n", codec->name); | |
1374 | } | |
435c5e25 | 1375 | |
f0fba2ad | 1376 | /* Make sure all DAPM widgets are freed */ |
ce6120cc | 1377 | snd_soc_dapm_free(&codec->dapm); |
96dd3622 | 1378 | |
f0fba2ad LG |
1379 | soc_cleanup_codec_debugfs(codec); |
1380 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1381 | codec->probed = 0; | |
1382 | list_del(&codec->card_list); | |
1383 | module_put(codec->dev->driver->owner); | |
db2a4165 FM |
1384 | } |
1385 | ||
f0fba2ad LG |
1386 | /* remove the cpu_dai */ |
1387 | if (cpu_dai && cpu_dai->probed) { | |
1388 | if (cpu_dai->driver->remove) { | |
1389 | err = cpu_dai->driver->remove(cpu_dai); | |
1390 | if (err < 0) | |
1391 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1392 | } |
f0fba2ad LG |
1393 | cpu_dai->probed = 0; |
1394 | list_del(&cpu_dai->card_list); | |
1395 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1396 | } |
f0fba2ad | 1397 | } |
db2a4165 | 1398 | |
ead9b919 JN |
1399 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1400 | struct snd_soc_codec *codec) | |
1401 | { | |
1402 | int i; | |
1403 | ||
ff819b83 | 1404 | if (card->codec_conf == NULL) |
ead9b919 JN |
1405 | return; |
1406 | ||
ff819b83 DP |
1407 | for (i = 0; i < card->num_configs; i++) { |
1408 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1409 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1410 | codec->name_prefix = map->name_prefix; | |
1411 | break; | |
1412 | } | |
1413 | } | |
1414 | } | |
1415 | ||
f0fba2ad LG |
1416 | static void rtd_release(struct device *dev) {} |
1417 | ||
1418 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) | |
1419 | { | |
1420 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1421 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1422 | struct snd_soc_codec *codec = rtd->codec; | |
1423 | struct snd_soc_platform *platform = rtd->platform; | |
1424 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
ead9b919 | 1425 | const char *temp; |
f0fba2ad LG |
1426 | int ret; |
1427 | ||
1428 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1429 | ||
1430 | /* config components */ | |
1431 | codec_dai->codec = codec; | |
1432 | codec->card = card; | |
1433 | cpu_dai->platform = platform; | |
1434 | rtd->card = card; | |
1435 | rtd->dev.parent = card->dev; | |
1436 | codec_dai->card = card; | |
1437 | cpu_dai->card = card; | |
1438 | ||
1439 | /* set default power off timeout */ | |
1440 | rtd->pmdown_time = pmdown_time; | |
1441 | ||
1442 | /* probe the cpu_dai */ | |
1443 | if (!cpu_dai->probed) { | |
1444 | if (cpu_dai->driver->probe) { | |
1445 | ret = cpu_dai->driver->probe(cpu_dai); | |
1446 | if (ret < 0) { | |
1447 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1448 | cpu_dai->name); | |
1449 | return ret; | |
1450 | } | |
1451 | } | |
1452 | cpu_dai->probed = 1; | |
1453 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1454 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1455 | } |
1456 | ||
f0fba2ad LG |
1457 | /* probe the CODEC */ |
1458 | if (!codec->probed) { | |
3a45b867 | 1459 | codec->dapm.card = card; |
ead9b919 | 1460 | soc_set_name_prefix(card, codec); |
f0fba2ad LG |
1461 | if (codec->driver->probe) { |
1462 | ret = codec->driver->probe(codec); | |
1463 | if (ret < 0) { | |
1464 | printk(KERN_ERR "asoc: failed to probe CODEC %s\n", | |
1465 | codec->name); | |
1466 | return ret; | |
1467 | } | |
1468 | } | |
13cb61f8 MB |
1469 | |
1470 | soc_init_codec_debugfs(codec); | |
1471 | ||
f0fba2ad LG |
1472 | /* mark codec as probed and add to card codec list */ |
1473 | codec->probed = 1; | |
1474 | list_add(&codec->card_list, &card->codec_dev_list); | |
db2a4165 FM |
1475 | } |
1476 | ||
f0fba2ad LG |
1477 | /* probe the platform */ |
1478 | if (!platform->probed) { | |
1479 | if (platform->driver->probe) { | |
1480 | ret = platform->driver->probe(platform); | |
1481 | if (ret < 0) { | |
1482 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1483 | platform->name); | |
1484 | return ret; | |
1485 | } | |
1486 | } | |
1487 | /* mark platform as probed and add to card platform list */ | |
1488 | platform->probed = 1; | |
1489 | list_add(&platform->card_list, &card->platform_dev_list); | |
1490 | } | |
6ed25978 | 1491 | |
f0fba2ad LG |
1492 | /* probe the CODEC DAI */ |
1493 | if (!codec_dai->probed) { | |
1494 | if (codec_dai->driver->probe) { | |
1495 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1496 | if (ret < 0) { |
f0fba2ad LG |
1497 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1498 | codec_dai->name); | |
1499 | return ret; | |
fe3e78e0 MB |
1500 | } |
1501 | } | |
f0fba2ad LG |
1502 | |
1503 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1504 | codec_dai->probed = 1; | |
1505 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1506 | } |
1507 | ||
f0fba2ad LG |
1508 | /* DAPM dai link stream work */ |
1509 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1510 | ||
1511 | /* now that all clients have probed, initialise the DAI link */ | |
1512 | if (dai_link->init) { | |
ead9b919 JN |
1513 | /* machine controls, routes and widgets are not prefixed */ |
1514 | temp = rtd->codec->name_prefix; | |
1515 | rtd->codec->name_prefix = NULL; | |
f0fba2ad LG |
1516 | ret = dai_link->init(rtd); |
1517 | if (ret < 0) { | |
1518 | printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name); | |
1519 | return ret; | |
1520 | } | |
ead9b919 | 1521 | rtd->codec->name_prefix = temp; |
f0fba2ad | 1522 | } |
fe3e78e0 MB |
1523 | |
1524 | /* Make sure all DAPM widgets are instantiated */ | |
ce6120cc LG |
1525 | snd_soc_dapm_new_widgets(&codec->dapm); |
1526 | snd_soc_dapm_sync(&codec->dapm); | |
fe3e78e0 | 1527 | |
f0fba2ad | 1528 | /* register the rtd device */ |
f0fba2ad LG |
1529 | rtd->dev.release = rtd_release; |
1530 | rtd->dev.init_name = dai_link->name; | |
1531 | ret = device_register(&rtd->dev); | |
fe3e78e0 | 1532 | if (ret < 0) { |
f0fba2ad LG |
1533 | printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret); |
1534 | return ret; | |
fe3e78e0 MB |
1535 | } |
1536 | ||
f0fba2ad LG |
1537 | rtd->dev_registered = 1; |
1538 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); | |
1539 | if (ret < 0) | |
1540 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1541 | ||
1542 | /* add DAPM sysfs entries for this codec */ | |
1543 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1544 | if (ret < 0) | |
1545 | printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n"); | |
1546 | ||
1547 | /* add codec sysfs entries */ | |
1548 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1549 | if (ret < 0) | |
1550 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1551 | ||
f0fba2ad LG |
1552 | /* create the pcm */ |
1553 | ret = soc_new_pcm(rtd, num); | |
1554 | if (ret < 0) { | |
1555 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1556 | return ret; | |
1557 | } | |
1558 | ||
1559 | /* add platform data for AC97 devices */ | |
1560 | if (rtd->codec_dai->driver->ac97_control) | |
1561 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1562 | ||
1563 | return 0; | |
1564 | } | |
1565 | ||
fe3e78e0 | 1566 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1567 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1568 | { | |
1569 | int ret; | |
1570 | ||
fe3e78e0 MB |
1571 | /* Only instantiate AC97 if not already done by the adaptor |
1572 | * for the generic AC97 subsystem. | |
1573 | */ | |
f0fba2ad | 1574 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1575 | /* |
1576 | * It is possible that the AC97 device is already registered to | |
1577 | * the device subsystem. This happens when the device is created | |
1578 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1579 | * is the generic AC97 glue but others migh emerge. | |
1580 | * | |
1581 | * In those cases we don't try to register the device again. | |
1582 | */ | |
1583 | if (!rtd->codec->ac97_created) | |
1584 | return 0; | |
f0fba2ad LG |
1585 | |
1586 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1587 | if (ret < 0) { |
1588 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1589 | return ret; |
fe3e78e0 | 1590 | } |
f0fba2ad LG |
1591 | |
1592 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1593 | } |
f0fba2ad LG |
1594 | return 0; |
1595 | } | |
1596 | ||
1597 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1598 | { | |
1599 | if (codec->ac97_registered) { | |
1600 | soc_ac97_dev_unregister(codec); | |
1601 | codec->ac97_registered = 0; | |
1602 | } | |
1603 | } | |
fe3e78e0 MB |
1604 | #endif |
1605 | ||
2eea392d JN |
1606 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1607 | { | |
1608 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
1609 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1610 | struct snd_soc_codec *codec; | |
1611 | const char *temp; | |
676ad98a | 1612 | int ret = -ENODEV; |
2eea392d JN |
1613 | |
1614 | /* find CODEC from registered CODECs*/ | |
1615 | list_for_each_entry(codec, &codec_list, list) { | |
1616 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1617 | if (codec->probed) { | |
1618 | dev_err(codec->dev, | |
1619 | "asoc: codec already probed"); | |
1620 | ret = -EBUSY; | |
1621 | goto out; | |
1622 | } | |
676ad98a | 1623 | goto found; |
2eea392d JN |
1624 | } |
1625 | } | |
676ad98a JN |
1626 | /* codec not found */ |
1627 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1628 | goto out; | |
2eea392d | 1629 | |
676ad98a | 1630 | found: |
2eea392d JN |
1631 | if (!try_module_get(codec->dev->driver->owner)) |
1632 | return -ENODEV; | |
1633 | ||
1634 | codec->card = card; | |
1635 | codec->dapm.card = card; | |
1636 | ||
1637 | soc_set_name_prefix(card, codec); | |
1638 | if (codec->driver->probe) { | |
1639 | ret = codec->driver->probe(codec); | |
1640 | if (ret < 0) { | |
1641 | dev_err(codec->dev, "asoc: failed to probe CODEC"); | |
1642 | return ret; | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | soc_init_codec_debugfs(codec); | |
1647 | ||
1648 | /* mark codec as probed and add to card codec list */ | |
1649 | codec->probed = 1; | |
1650 | list_add(&codec->card_list, &card->codec_dev_list); | |
2eea392d JN |
1651 | |
1652 | /* now that all clients have probed, initialise the DAI link */ | |
1653 | if (aux_dev->init) { | |
1654 | /* machine controls, routes and widgets are not prefixed */ | |
1655 | temp = codec->name_prefix; | |
1656 | codec->name_prefix = NULL; | |
1657 | ret = aux_dev->init(&codec->dapm); | |
1658 | if (ret < 0) { | |
1659 | dev_err(codec->dev, | |
1660 | "asoc: failed to init %s\n", aux_dev->name); | |
1661 | return ret; | |
1662 | } | |
1663 | codec->name_prefix = temp; | |
1664 | } | |
1665 | ||
1666 | /* Make sure all DAPM widgets are instantiated */ | |
1667 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1668 | snd_soc_dapm_sync(&codec->dapm); | |
1669 | ||
1670 | /* register the rtd device */ | |
1671 | rtd->codec = codec; | |
1672 | rtd->card = card; | |
1673 | rtd->dev.parent = card->dev; | |
1674 | rtd->dev.release = rtd_release; | |
1675 | rtd->dev.init_name = aux_dev->name; | |
1676 | ret = device_register(&rtd->dev); | |
1677 | if (ret < 0) { | |
1678 | dev_err(codec->dev, | |
1679 | "asoc: failed to register aux runtime device %d\n", | |
1680 | ret); | |
1681 | return ret; | |
1682 | } | |
1683 | rtd->dev_registered = 1; | |
1684 | ||
1685 | /* add DAPM sysfs entries for this codec */ | |
1686 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1687 | if (ret < 0) | |
1688 | dev_err(codec->dev, | |
1689 | "asoc: failed to add codec dapm sysfs entries\n"); | |
1690 | ||
1691 | /* add codec sysfs entries */ | |
1692 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1693 | if (ret < 0) | |
1694 | dev_err(codec->dev, "asoc: failed to add codec sysfs files\n"); | |
1695 | ||
1696 | out: | |
1697 | return ret; | |
1698 | } | |
1699 | ||
1700 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1701 | { | |
1702 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1703 | struct snd_soc_codec *codec = rtd->codec; | |
1704 | int err; | |
1705 | ||
1706 | /* unregister the rtd device */ | |
1707 | if (rtd->dev_registered) { | |
1708 | device_unregister(&rtd->dev); | |
1709 | rtd->dev_registered = 0; | |
1710 | } | |
1711 | ||
1712 | /* remove the CODEC */ | |
1713 | if (codec && codec->probed) { | |
1714 | if (codec->driver->remove) { | |
1715 | err = codec->driver->remove(codec); | |
1716 | if (err < 0) | |
1717 | dev_err(codec->dev, | |
1718 | "asoc: failed to remove %s\n", | |
1719 | codec->name); | |
1720 | } | |
1721 | ||
1722 | /* Make sure all DAPM widgets are freed */ | |
1723 | snd_soc_dapm_free(&codec->dapm); | |
1724 | ||
1725 | soc_cleanup_codec_debugfs(codec); | |
1726 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1727 | codec->probed = 0; | |
1728 | list_del(&codec->card_list); | |
1729 | module_put(codec->dev->driver->owner); | |
1730 | } | |
1731 | } | |
1732 | ||
f0fba2ad LG |
1733 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1734 | { | |
1735 | struct platform_device *pdev = to_platform_device(card->dev); | |
1736 | int ret, i; | |
fe3e78e0 | 1737 | |
f0fba2ad | 1738 | mutex_lock(&card->mutex); |
dbe21408 | 1739 | |
f0fba2ad LG |
1740 | if (card->instantiated) { |
1741 | mutex_unlock(&card->mutex); | |
1742 | return; | |
1743 | } | |
fe3e78e0 | 1744 | |
f0fba2ad LG |
1745 | /* bind DAIs */ |
1746 | for (i = 0; i < card->num_links; i++) | |
1747 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1748 | |
f0fba2ad LG |
1749 | /* bind completed ? */ |
1750 | if (card->num_rtd != card->num_links) { | |
1751 | mutex_unlock(&card->mutex); | |
1752 | return; | |
1753 | } | |
435c5e25 | 1754 | |
f0fba2ad LG |
1755 | /* card bind complete so register a sound card */ |
1756 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1757 | card->owner, 0, &card->snd_card); | |
1758 | if (ret < 0) { | |
1759 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1760 | card->name); | |
1761 | mutex_unlock(&card->mutex); | |
1762 | return; | |
1763 | } | |
1764 | card->snd_card->dev = card->dev; | |
1765 | ||
1766 | #ifdef CONFIG_PM | |
1767 | /* deferred resume work */ | |
1768 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1769 | #endif | |
db2a4165 | 1770 | |
f0fba2ad LG |
1771 | /* initialise the sound card only once */ |
1772 | if (card->probe) { | |
1773 | ret = card->probe(pdev); | |
1774 | if (ret < 0) | |
1775 | goto card_probe_error; | |
1776 | } | |
fe3e78e0 | 1777 | |
f0fba2ad LG |
1778 | for (i = 0; i < card->num_links; i++) { |
1779 | ret = soc_probe_dai_link(card, i); | |
1780 | if (ret < 0) { | |
321de0d0 MB |
1781 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1782 | card->name, ret); | |
f0fba2ad LG |
1783 | goto probe_dai_err; |
1784 | } | |
1785 | } | |
db2a4165 | 1786 | |
2eea392d JN |
1787 | for (i = 0; i < card->num_aux_devs; i++) { |
1788 | ret = soc_probe_aux_dev(card, i); | |
1789 | if (ret < 0) { | |
1790 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1791 | card->name, ret); | |
1792 | goto probe_aux_dev_err; | |
1793 | } | |
1794 | } | |
1795 | ||
f0fba2ad LG |
1796 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1797 | "%s", card->name); | |
1798 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1799 | "%s", card->name); | |
1800 | ||
1801 | ret = snd_card_register(card->snd_card); | |
1802 | if (ret < 0) { | |
1803 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1804 | goto probe_dai_err; | |
db2a4165 FM |
1805 | } |
1806 | ||
f0fba2ad LG |
1807 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1808 | /* register any AC97 codecs */ | |
1809 | for (i = 0; i < card->num_rtd; i++) { | |
1810 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1811 | if (ret < 0) { | |
1812 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1813 | goto probe_dai_err; | |
1814 | } | |
1815 | } | |
1816 | #endif | |
1817 | ||
1818 | card->instantiated = 1; | |
1819 | mutex_unlock(&card->mutex); | |
1820 | return; | |
1821 | ||
2eea392d JN |
1822 | probe_aux_dev_err: |
1823 | for (i = 0; i < card->num_aux_devs; i++) | |
1824 | soc_remove_aux_dev(card, i); | |
1825 | ||
f0fba2ad LG |
1826 | probe_dai_err: |
1827 | for (i = 0; i < card->num_links; i++) | |
1828 | soc_remove_dai_link(card, i); | |
1829 | ||
1830 | card_probe_error: | |
87506549 MB |
1831 | if (card->remove) |
1832 | card->remove(pdev); | |
f0fba2ad LG |
1833 | |
1834 | snd_card_free(card->snd_card); | |
1835 | ||
1836 | mutex_unlock(&card->mutex); | |
435c5e25 | 1837 | } |
db2a4165 | 1838 | |
435c5e25 | 1839 | /* |
421f91d2 | 1840 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1841 | * client_mutex. |
1842 | */ | |
1843 | static void snd_soc_instantiate_cards(void) | |
1844 | { | |
1845 | struct snd_soc_card *card; | |
1846 | list_for_each_entry(card, &card_list, list) | |
1847 | snd_soc_instantiate_card(card); | |
1848 | } | |
1849 | ||
1850 | /* probes a new socdev */ | |
1851 | static int soc_probe(struct platform_device *pdev) | |
1852 | { | |
f0fba2ad | 1853 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1854 | int ret = 0; |
435c5e25 MB |
1855 | |
1856 | /* Bodge while we unpick instantiation */ | |
1857 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1858 | INIT_LIST_HEAD(&card->dai_dev_list); |
1859 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1860 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1861 | ||
a6052154 JN |
1862 | soc_init_card_debugfs(card); |
1863 | ||
435c5e25 MB |
1864 | ret = snd_soc_register_card(card); |
1865 | if (ret != 0) { | |
1866 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1867 | return ret; | |
1868 | } | |
1869 | ||
1870 | return 0; | |
db2a4165 FM |
1871 | } |
1872 | ||
1873 | /* removes a socdev */ | |
1874 | static int soc_remove(struct platform_device *pdev) | |
1875 | { | |
f0fba2ad | 1876 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1877 | int i; |
db2a4165 | 1878 | |
f0fba2ad | 1879 | if (card->instantiated) { |
914dc182 | 1880 | |
f0fba2ad LG |
1881 | /* make sure any delayed work runs */ |
1882 | for (i = 0; i < card->num_rtd; i++) { | |
1883 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1884 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1885 | } |
db2a4165 | 1886 | |
2eea392d JN |
1887 | /* remove auxiliary devices */ |
1888 | for (i = 0; i < card->num_aux_devs; i++) | |
1889 | soc_remove_aux_dev(card, i); | |
1890 | ||
f0fba2ad LG |
1891 | /* remove and free each DAI */ |
1892 | for (i = 0; i < card->num_rtd; i++) | |
1893 | soc_remove_dai_link(card, i); | |
1894 | ||
a6052154 JN |
1895 | soc_cleanup_card_debugfs(card); |
1896 | ||
f0fba2ad | 1897 | /* remove the card */ |
b2dfa62c GL |
1898 | if (card->remove) |
1899 | card->remove(pdev); | |
db2a4165 | 1900 | |
f0fba2ad LG |
1901 | kfree(card->rtd); |
1902 | snd_card_free(card->snd_card); | |
1903 | } | |
c5af3a2e | 1904 | snd_soc_unregister_card(card); |
db2a4165 FM |
1905 | return 0; |
1906 | } | |
1907 | ||
416356fc | 1908 | static int soc_poweroff(struct device *dev) |
51737470 | 1909 | { |
416356fc | 1910 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1911 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1912 | int i; | |
51737470 MB |
1913 | |
1914 | if (!card->instantiated) | |
416356fc | 1915 | return 0; |
51737470 MB |
1916 | |
1917 | /* Flush out pmdown_time work - we actually do want to run it | |
1918 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1919 | for (i = 0; i < card->num_rtd; i++) { |
1920 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1921 | run_delayed_work(&rtd->delayed_work); | |
1922 | } | |
51737470 | 1923 | |
f0fba2ad | 1924 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1925 | |
1926 | return 0; | |
51737470 MB |
1927 | } |
1928 | ||
47145210 | 1929 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1930 | .suspend = soc_suspend, |
1931 | .resume = soc_resume, | |
1932 | .poweroff = soc_poweroff, | |
1933 | }; | |
1934 | ||
db2a4165 FM |
1935 | /* ASoC platform driver */ |
1936 | static struct platform_driver soc_driver = { | |
1937 | .driver = { | |
1938 | .name = "soc-audio", | |
8b45a209 | 1939 | .owner = THIS_MODULE, |
416356fc | 1940 | .pm = &soc_pm_ops, |
db2a4165 FM |
1941 | }, |
1942 | .probe = soc_probe, | |
1943 | .remove = soc_remove, | |
db2a4165 FM |
1944 | }; |
1945 | ||
1946 | /* create a new pcm */ | |
f0fba2ad LG |
1947 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1948 | { | |
1949 | struct snd_soc_codec *codec = rtd->codec; | |
1950 | struct snd_soc_platform *platform = rtd->platform; | |
1951 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1952 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1953 | struct snd_pcm *pcm; |
1954 | char new_name[64]; | |
1955 | int ret = 0, playback = 0, capture = 0; | |
1956 | ||
db2a4165 | 1957 | /* check client and interface hw capabilities */ |
40ca1142 | 1958 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1959 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1960 | |
f0fba2ad | 1961 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1962 | playback = 1; |
f0fba2ad | 1963 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1964 | capture = 1; |
1965 | ||
f0fba2ad LG |
1966 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1967 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1968 | num, playback, capture, &pcm); | |
db2a4165 | 1969 | if (ret < 0) { |
f0fba2ad | 1970 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1971 | return ret; |
1972 | } | |
1973 | ||
f0fba2ad | 1974 | rtd->pcm = pcm; |
db2a4165 | 1975 | pcm->private_data = rtd; |
f0fba2ad LG |
1976 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1977 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1978 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1979 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1980 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1981 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1982 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1983 | |
1984 | if (playback) | |
1985 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1986 | ||
1987 | if (capture) | |
1988 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1989 | ||
f0fba2ad | 1990 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1991 | if (ret < 0) { |
1992 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1993 | return ret; |
1994 | } | |
1995 | ||
f0fba2ad | 1996 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1997 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1998 | cpu_dai->name); | |
1999 | return ret; | |
2000 | } | |
2001 | ||
096e49d5 MB |
2002 | /** |
2003 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2004 | * | |
2005 | * @codec: CODEC to query. | |
2006 | * @reg: Register to query. | |
2007 | * | |
2008 | * Boolean function indiciating if a CODEC register is volatile. | |
2009 | */ | |
2010 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
2011 | { | |
f0fba2ad LG |
2012 | if (codec->driver->volatile_register) |
2013 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
2014 | else |
2015 | return 0; | |
2016 | } | |
2017 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2018 | ||
db2a4165 FM |
2019 | /** |
2020 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2021 | * @codec: audio codec | |
2022 | * @ops: AC97 bus operations | |
2023 | * @num: AC97 codec number | |
2024 | * | |
2025 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2026 | */ | |
2027 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2028 | struct snd_ac97_bus_ops *ops, int num) | |
2029 | { | |
2030 | mutex_lock(&codec->mutex); | |
2031 | ||
2032 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2033 | if (codec->ac97 == NULL) { | |
2034 | mutex_unlock(&codec->mutex); | |
2035 | return -ENOMEM; | |
2036 | } | |
2037 | ||
2038 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2039 | if (codec->ac97->bus == NULL) { | |
2040 | kfree(codec->ac97); | |
2041 | codec->ac97 = NULL; | |
2042 | mutex_unlock(&codec->mutex); | |
2043 | return -ENOMEM; | |
2044 | } | |
2045 | ||
2046 | codec->ac97->bus->ops = ops; | |
2047 | codec->ac97->num = num; | |
0562f788 MW |
2048 | |
2049 | /* | |
2050 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2051 | * device will be registered with the device subsystem later on. | |
2052 | */ | |
2053 | codec->ac97_created = 1; | |
2054 | ||
db2a4165 FM |
2055 | mutex_unlock(&codec->mutex); |
2056 | return 0; | |
2057 | } | |
2058 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2059 | ||
2060 | /** | |
2061 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2062 | * @codec: audio codec | |
2063 | * | |
2064 | * Frees AC97 codec device resources. | |
2065 | */ | |
2066 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2067 | { | |
2068 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2069 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2070 | soc_unregister_ac97_dai_link(codec); | |
2071 | #endif | |
db2a4165 FM |
2072 | kfree(codec->ac97->bus); |
2073 | kfree(codec->ac97); | |
2074 | codec->ac97 = NULL; | |
0562f788 | 2075 | codec->ac97_created = 0; |
db2a4165 FM |
2076 | mutex_unlock(&codec->mutex); |
2077 | } | |
2078 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2079 | ||
c3753707 MB |
2080 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2081 | { | |
2082 | unsigned int ret; | |
2083 | ||
c3acec26 | 2084 | ret = codec->read(codec, reg); |
c3753707 | 2085 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2086 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2087 | |
2088 | return ret; | |
2089 | } | |
2090 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2091 | ||
2092 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2093 | unsigned int reg, unsigned int val) | |
2094 | { | |
2095 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2096 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2097 | return codec->write(codec, reg, val); |
c3753707 MB |
2098 | } |
2099 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2100 | ||
db2a4165 FM |
2101 | /** |
2102 | * snd_soc_update_bits - update codec register bits | |
2103 | * @codec: audio codec | |
2104 | * @reg: codec register | |
2105 | * @mask: register mask | |
2106 | * @value: new value | |
2107 | * | |
2108 | * Writes new register value. | |
2109 | * | |
2110 | * Returns 1 for change else 0. | |
2111 | */ | |
2112 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2113 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2114 | { |
2115 | int change; | |
46f5822f | 2116 | unsigned int old, new; |
db2a4165 | 2117 | |
db2a4165 FM |
2118 | old = snd_soc_read(codec, reg); |
2119 | new = (old & ~mask) | value; | |
2120 | change = old != new; | |
2121 | if (change) | |
2122 | snd_soc_write(codec, reg, new); | |
2123 | ||
db2a4165 FM |
2124 | return change; |
2125 | } | |
2126 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2127 | ||
6c508c62 EN |
2128 | /** |
2129 | * snd_soc_update_bits_locked - update codec register bits | |
2130 | * @codec: audio codec | |
2131 | * @reg: codec register | |
2132 | * @mask: register mask | |
2133 | * @value: new value | |
2134 | * | |
2135 | * Writes new register value, and takes the codec mutex. | |
2136 | * | |
2137 | * Returns 1 for change else 0. | |
2138 | */ | |
dd1b3d53 MB |
2139 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2140 | unsigned short reg, unsigned int mask, | |
2141 | unsigned int value) | |
6c508c62 EN |
2142 | { |
2143 | int change; | |
2144 | ||
2145 | mutex_lock(&codec->mutex); | |
2146 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2147 | mutex_unlock(&codec->mutex); | |
2148 | ||
2149 | return change; | |
2150 | } | |
dd1b3d53 | 2151 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2152 | |
db2a4165 FM |
2153 | /** |
2154 | * snd_soc_test_bits - test register for change | |
2155 | * @codec: audio codec | |
2156 | * @reg: codec register | |
2157 | * @mask: register mask | |
2158 | * @value: new value | |
2159 | * | |
2160 | * Tests a register with a new value and checks if the new value is | |
2161 | * different from the old value. | |
2162 | * | |
2163 | * Returns 1 for change else 0. | |
2164 | */ | |
2165 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2166 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2167 | { |
2168 | int change; | |
46f5822f | 2169 | unsigned int old, new; |
db2a4165 | 2170 | |
db2a4165 FM |
2171 | old = snd_soc_read(codec, reg); |
2172 | new = (old & ~mask) | value; | |
2173 | change = old != new; | |
db2a4165 FM |
2174 | |
2175 | return change; | |
2176 | } | |
2177 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2178 | ||
db2a4165 FM |
2179 | /** |
2180 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2181 | * @substream: the pcm substream | |
2182 | * @hw: the hardware parameters | |
2183 | * | |
2184 | * Sets the substream runtime hardware parameters. | |
2185 | */ | |
2186 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2187 | const struct snd_pcm_hardware *hw) | |
2188 | { | |
2189 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2190 | runtime->hw.info = hw->info; | |
2191 | runtime->hw.formats = hw->formats; | |
2192 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2193 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2194 | runtime->hw.periods_min = hw->periods_min; | |
2195 | runtime->hw.periods_max = hw->periods_max; | |
2196 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2197 | runtime->hw.fifo_size = hw->fifo_size; | |
2198 | return 0; | |
2199 | } | |
2200 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2201 | ||
2202 | /** | |
2203 | * snd_soc_cnew - create new control | |
2204 | * @_template: control template | |
2205 | * @data: control private data | |
ac11a2b3 | 2206 | * @long_name: control long name |
db2a4165 FM |
2207 | * |
2208 | * Create a new mixer control from a template control. | |
2209 | * | |
2210 | * Returns 0 for success, else error. | |
2211 | */ | |
2212 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2213 | void *data, char *long_name) | |
2214 | { | |
2215 | struct snd_kcontrol_new template; | |
2216 | ||
2217 | memcpy(&template, _template, sizeof(template)); | |
2218 | if (long_name) | |
2219 | template.name = long_name; | |
db2a4165 FM |
2220 | template.index = 0; |
2221 | ||
2222 | return snd_ctl_new1(&template, data); | |
2223 | } | |
2224 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2225 | ||
3e8e1952 IM |
2226 | /** |
2227 | * snd_soc_add_controls - add an array of controls to a codec. | |
2228 | * Convienience function to add a list of controls. Many codecs were | |
2229 | * duplicating this code. | |
2230 | * | |
2231 | * @codec: codec to add controls to | |
2232 | * @controls: array of controls to add | |
2233 | * @num_controls: number of elements in the array | |
2234 | * | |
2235 | * Return 0 for success, else error. | |
2236 | */ | |
2237 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2238 | const struct snd_kcontrol_new *controls, int num_controls) | |
2239 | { | |
f0fba2ad | 2240 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2241 | char prefixed_name[44], *name; |
3e8e1952 IM |
2242 | int err, i; |
2243 | ||
2244 | for (i = 0; i < num_controls; i++) { | |
2245 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2246 | if (codec->name_prefix) { |
2247 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2248 | codec->name_prefix, control->name); | |
2249 | name = prefixed_name; | |
2250 | } else { | |
2251 | name = control->name; | |
2252 | } | |
2253 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2254 | if (err < 0) { |
082100dc | 2255 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2256 | codec->name, name, err); |
3e8e1952 IM |
2257 | return err; |
2258 | } | |
2259 | } | |
2260 | ||
2261 | return 0; | |
2262 | } | |
2263 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2264 | ||
db2a4165 FM |
2265 | /** |
2266 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2267 | * @kcontrol: mixer control | |
2268 | * @uinfo: control element information | |
2269 | * | |
2270 | * Callback to provide information about a double enumerated | |
2271 | * mixer control. | |
2272 | * | |
2273 | * Returns 0 for success. | |
2274 | */ | |
2275 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2276 | struct snd_ctl_elem_info *uinfo) | |
2277 | { | |
2278 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2279 | ||
2280 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2281 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2282 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2283 | |
f8ba0b7b JS |
2284 | if (uinfo->value.enumerated.item > e->max - 1) |
2285 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2286 | strcpy(uinfo->value.enumerated.name, |
2287 | e->texts[uinfo->value.enumerated.item]); | |
2288 | return 0; | |
2289 | } | |
2290 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2291 | ||
2292 | /** | |
2293 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2294 | * @kcontrol: mixer control | |
ac11a2b3 | 2295 | * @ucontrol: control element information |
db2a4165 FM |
2296 | * |
2297 | * Callback to get the value of a double enumerated mixer. | |
2298 | * | |
2299 | * Returns 0 for success. | |
2300 | */ | |
2301 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2302 | struct snd_ctl_elem_value *ucontrol) | |
2303 | { | |
2304 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2305 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2306 | unsigned int val, bitmask; |
db2a4165 | 2307 | |
f8ba0b7b | 2308 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2309 | ; |
2310 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2311 | ucontrol->value.enumerated.item[0] |
2312 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2313 | if (e->shift_l != e->shift_r) |
2314 | ucontrol->value.enumerated.item[1] = | |
2315 | (val >> e->shift_r) & (bitmask - 1); | |
2316 | ||
2317 | return 0; | |
2318 | } | |
2319 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2320 | ||
2321 | /** | |
2322 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2323 | * @kcontrol: mixer control | |
ac11a2b3 | 2324 | * @ucontrol: control element information |
db2a4165 FM |
2325 | * |
2326 | * Callback to set the value of a double enumerated mixer. | |
2327 | * | |
2328 | * Returns 0 for success. | |
2329 | */ | |
2330 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2331 | struct snd_ctl_elem_value *ucontrol) | |
2332 | { | |
2333 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2334 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2335 | unsigned int val; |
2336 | unsigned int mask, bitmask; | |
db2a4165 | 2337 | |
f8ba0b7b | 2338 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2339 | ; |
f8ba0b7b | 2340 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2341 | return -EINVAL; |
2342 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2343 | mask = (bitmask - 1) << e->shift_l; | |
2344 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2345 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2346 | return -EINVAL; |
2347 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2348 | mask |= (bitmask - 1) << e->shift_r; | |
2349 | } | |
2350 | ||
6c508c62 | 2351 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2352 | } |
2353 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2354 | ||
2e72f8e3 PU |
2355 | /** |
2356 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2357 | * @kcontrol: mixer control | |
2358 | * @ucontrol: control element information | |
2359 | * | |
2360 | * Callback to get the value of a double semi enumerated mixer. | |
2361 | * | |
2362 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2363 | * used for handling bitfield coded enumeration for example. | |
2364 | * | |
2365 | * Returns 0 for success. | |
2366 | */ | |
2367 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2368 | struct snd_ctl_elem_value *ucontrol) | |
2369 | { | |
2370 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2371 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2372 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2373 | |
2374 | reg_val = snd_soc_read(codec, e->reg); | |
2375 | val = (reg_val >> e->shift_l) & e->mask; | |
2376 | for (mux = 0; mux < e->max; mux++) { | |
2377 | if (val == e->values[mux]) | |
2378 | break; | |
2379 | } | |
2380 | ucontrol->value.enumerated.item[0] = mux; | |
2381 | if (e->shift_l != e->shift_r) { | |
2382 | val = (reg_val >> e->shift_r) & e->mask; | |
2383 | for (mux = 0; mux < e->max; mux++) { | |
2384 | if (val == e->values[mux]) | |
2385 | break; | |
2386 | } | |
2387 | ucontrol->value.enumerated.item[1] = mux; | |
2388 | } | |
2389 | ||
2390 | return 0; | |
2391 | } | |
2392 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2393 | ||
2394 | /** | |
2395 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2396 | * @kcontrol: mixer control | |
2397 | * @ucontrol: control element information | |
2398 | * | |
2399 | * Callback to set the value of a double semi enumerated mixer. | |
2400 | * | |
2401 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2402 | * used for handling bitfield coded enumeration for example. | |
2403 | * | |
2404 | * Returns 0 for success. | |
2405 | */ | |
2406 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2407 | struct snd_ctl_elem_value *ucontrol) | |
2408 | { | |
2409 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2410 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2411 | unsigned int val; |
2412 | unsigned int mask; | |
2e72f8e3 PU |
2413 | |
2414 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2415 | return -EINVAL; | |
2416 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2417 | mask = e->mask << e->shift_l; | |
2418 | if (e->shift_l != e->shift_r) { | |
2419 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2420 | return -EINVAL; | |
2421 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2422 | mask |= e->mask << e->shift_r; | |
2423 | } | |
2424 | ||
6c508c62 | 2425 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2426 | } |
2427 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2428 | ||
db2a4165 FM |
2429 | /** |
2430 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2431 | * @kcontrol: mixer control | |
2432 | * @uinfo: control element information | |
2433 | * | |
2434 | * Callback to provide information about an external enumerated | |
2435 | * single mixer. | |
2436 | * | |
2437 | * Returns 0 for success. | |
2438 | */ | |
2439 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2440 | struct snd_ctl_elem_info *uinfo) | |
2441 | { | |
2442 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2443 | ||
2444 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2445 | uinfo->count = 1; | |
f8ba0b7b | 2446 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2447 | |
f8ba0b7b JS |
2448 | if (uinfo->value.enumerated.item > e->max - 1) |
2449 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2450 | strcpy(uinfo->value.enumerated.name, |
2451 | e->texts[uinfo->value.enumerated.item]); | |
2452 | return 0; | |
2453 | } | |
2454 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2455 | ||
2456 | /** | |
2457 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2458 | * @kcontrol: mixer control | |
2459 | * @uinfo: control element information | |
2460 | * | |
2461 | * Callback to provide information about a single external mixer control. | |
2462 | * | |
2463 | * Returns 0 for success. | |
2464 | */ | |
2465 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2466 | struct snd_ctl_elem_info *uinfo) | |
2467 | { | |
a7a4ac86 PZ |
2468 | int max = kcontrol->private_value; |
2469 | ||
fd5dfad9 | 2470 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2471 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2472 | else | |
2473 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2474 | |
db2a4165 FM |
2475 | uinfo->count = 1; |
2476 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2477 | uinfo->value.integer.max = max; |
db2a4165 FM |
2478 | return 0; |
2479 | } | |
2480 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2481 | ||
db2a4165 FM |
2482 | /** |
2483 | * snd_soc_info_volsw - single mixer info callback | |
2484 | * @kcontrol: mixer control | |
2485 | * @uinfo: control element information | |
2486 | * | |
2487 | * Callback to provide information about a single mixer control. | |
2488 | * | |
2489 | * Returns 0 for success. | |
2490 | */ | |
2491 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2492 | struct snd_ctl_elem_info *uinfo) | |
2493 | { | |
4eaa9819 JS |
2494 | struct soc_mixer_control *mc = |
2495 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2496 | int platform_max; |
762b8df7 | 2497 | unsigned int shift = mc->shift; |
815ecf8d | 2498 | unsigned int rshift = mc->rshift; |
db2a4165 | 2499 | |
d11bb4a9 PU |
2500 | if (!mc->platform_max) |
2501 | mc->platform_max = mc->max; | |
2502 | platform_max = mc->platform_max; | |
2503 | ||
2504 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2505 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2506 | else | |
2507 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2508 | ||
db2a4165 FM |
2509 | uinfo->count = shift == rshift ? 1 : 2; |
2510 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2511 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2512 | return 0; |
2513 | } | |
2514 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2515 | ||
2516 | /** | |
2517 | * snd_soc_get_volsw - single mixer get callback | |
2518 | * @kcontrol: mixer control | |
ac11a2b3 | 2519 | * @ucontrol: control element information |
db2a4165 FM |
2520 | * |
2521 | * Callback to get the value of a single mixer control. | |
2522 | * | |
2523 | * Returns 0 for success. | |
2524 | */ | |
2525 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2526 | struct snd_ctl_elem_value *ucontrol) | |
2527 | { | |
4eaa9819 JS |
2528 | struct soc_mixer_control *mc = |
2529 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2530 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2531 | unsigned int reg = mc->reg; |
2532 | unsigned int shift = mc->shift; | |
2533 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2534 | int max = mc->max; |
815ecf8d JS |
2535 | unsigned int mask = (1 << fls(max)) - 1; |
2536 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2537 | |
2538 | ucontrol->value.integer.value[0] = | |
2539 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2540 | if (shift != rshift) | |
2541 | ucontrol->value.integer.value[1] = | |
2542 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2543 | if (invert) { | |
2544 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2545 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2546 | if (shift != rshift) |
2547 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2548 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2549 | } |
2550 | ||
2551 | return 0; | |
2552 | } | |
2553 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2554 | ||
2555 | /** | |
2556 | * snd_soc_put_volsw - single mixer put callback | |
2557 | * @kcontrol: mixer control | |
ac11a2b3 | 2558 | * @ucontrol: control element information |
db2a4165 FM |
2559 | * |
2560 | * Callback to set the value of a single mixer control. | |
2561 | * | |
2562 | * Returns 0 for success. | |
2563 | */ | |
2564 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2565 | struct snd_ctl_elem_value *ucontrol) | |
2566 | { | |
4eaa9819 JS |
2567 | struct soc_mixer_control *mc = |
2568 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2569 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2570 | unsigned int reg = mc->reg; |
2571 | unsigned int shift = mc->shift; | |
2572 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2573 | int max = mc->max; |
815ecf8d JS |
2574 | unsigned int mask = (1 << fls(max)) - 1; |
2575 | unsigned int invert = mc->invert; | |
46f5822f | 2576 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2577 | |
2578 | val = (ucontrol->value.integer.value[0] & mask); | |
2579 | if (invert) | |
a7a4ac86 | 2580 | val = max - val; |
db2a4165 FM |
2581 | val_mask = mask << shift; |
2582 | val = val << shift; | |
2583 | if (shift != rshift) { | |
2584 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2585 | if (invert) | |
a7a4ac86 | 2586 | val2 = max - val2; |
db2a4165 FM |
2587 | val_mask |= mask << rshift; |
2588 | val |= val2 << rshift; | |
2589 | } | |
6c508c62 | 2590 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2591 | } |
2592 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2593 | ||
2594 | /** | |
2595 | * snd_soc_info_volsw_2r - double mixer info callback | |
2596 | * @kcontrol: mixer control | |
2597 | * @uinfo: control element information | |
2598 | * | |
2599 | * Callback to provide information about a double mixer control that | |
2600 | * spans 2 codec registers. | |
2601 | * | |
2602 | * Returns 0 for success. | |
2603 | */ | |
2604 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2605 | struct snd_ctl_elem_info *uinfo) | |
2606 | { | |
4eaa9819 JS |
2607 | struct soc_mixer_control *mc = |
2608 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2609 | int platform_max; |
a7a4ac86 | 2610 | |
d11bb4a9 PU |
2611 | if (!mc->platform_max) |
2612 | mc->platform_max = mc->max; | |
2613 | platform_max = mc->platform_max; | |
2614 | ||
2615 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2616 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2617 | else | |
2618 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2619 | |
db2a4165 FM |
2620 | uinfo->count = 2; |
2621 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2622 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2623 | return 0; |
2624 | } | |
2625 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2626 | ||
2627 | /** | |
2628 | * snd_soc_get_volsw_2r - double mixer get callback | |
2629 | * @kcontrol: mixer control | |
ac11a2b3 | 2630 | * @ucontrol: control element information |
db2a4165 FM |
2631 | * |
2632 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2633 | * | |
2634 | * Returns 0 for success. | |
2635 | */ | |
2636 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2637 | struct snd_ctl_elem_value *ucontrol) | |
2638 | { | |
4eaa9819 JS |
2639 | struct soc_mixer_control *mc = |
2640 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2641 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2642 | unsigned int reg = mc->reg; |
2643 | unsigned int reg2 = mc->rreg; | |
2644 | unsigned int shift = mc->shift; | |
4eaa9819 | 2645 | int max = mc->max; |
46f5822f | 2646 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2647 | unsigned int invert = mc->invert; |
db2a4165 FM |
2648 | |
2649 | ucontrol->value.integer.value[0] = | |
2650 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2651 | ucontrol->value.integer.value[1] = | |
2652 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2653 | if (invert) { | |
2654 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2655 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2656 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2657 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2658 | } |
2659 | ||
2660 | return 0; | |
2661 | } | |
2662 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2663 | ||
2664 | /** | |
2665 | * snd_soc_put_volsw_2r - double mixer set callback | |
2666 | * @kcontrol: mixer control | |
ac11a2b3 | 2667 | * @ucontrol: control element information |
db2a4165 FM |
2668 | * |
2669 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2670 | * | |
2671 | * Returns 0 for success. | |
2672 | */ | |
2673 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2674 | struct snd_ctl_elem_value *ucontrol) | |
2675 | { | |
4eaa9819 JS |
2676 | struct soc_mixer_control *mc = |
2677 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2678 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2679 | unsigned int reg = mc->reg; |
2680 | unsigned int reg2 = mc->rreg; | |
2681 | unsigned int shift = mc->shift; | |
4eaa9819 | 2682 | int max = mc->max; |
815ecf8d JS |
2683 | unsigned int mask = (1 << fls(max)) - 1; |
2684 | unsigned int invert = mc->invert; | |
db2a4165 | 2685 | int err; |
46f5822f | 2686 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2687 | |
2688 | val_mask = mask << shift; | |
2689 | val = (ucontrol->value.integer.value[0] & mask); | |
2690 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2691 | ||
2692 | if (invert) { | |
a7a4ac86 PZ |
2693 | val = max - val; |
2694 | val2 = max - val2; | |
db2a4165 FM |
2695 | } |
2696 | ||
2697 | val = val << shift; | |
2698 | val2 = val2 << shift; | |
2699 | ||
6c508c62 | 2700 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2701 | if (err < 0) |
db2a4165 FM |
2702 | return err; |
2703 | ||
6c508c62 | 2704 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2705 | return err; |
2706 | } | |
2707 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2708 | ||
e13ac2e9 MB |
2709 | /** |
2710 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2711 | * @kcontrol: mixer control | |
2712 | * @uinfo: control element information | |
2713 | * | |
2714 | * Callback to provide information about a signed mixer control. | |
2715 | * | |
2716 | * Returns 0 for success. | |
2717 | */ | |
2718 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2719 | struct snd_ctl_elem_info *uinfo) | |
2720 | { | |
4eaa9819 JS |
2721 | struct soc_mixer_control *mc = |
2722 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2723 | int platform_max; |
4eaa9819 | 2724 | int min = mc->min; |
e13ac2e9 | 2725 | |
d11bb4a9 PU |
2726 | if (!mc->platform_max) |
2727 | mc->platform_max = mc->max; | |
2728 | platform_max = mc->platform_max; | |
2729 | ||
e13ac2e9 MB |
2730 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2731 | uinfo->count = 2; | |
2732 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2733 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2734 | return 0; |
2735 | } | |
2736 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2737 | ||
2738 | /** | |
2739 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2740 | * @kcontrol: mixer control | |
ac11a2b3 | 2741 | * @ucontrol: control element information |
e13ac2e9 MB |
2742 | * |
2743 | * Callback to get the value of a signed mixer control. | |
2744 | * | |
2745 | * Returns 0 for success. | |
2746 | */ | |
2747 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2748 | struct snd_ctl_elem_value *ucontrol) | |
2749 | { | |
4eaa9819 JS |
2750 | struct soc_mixer_control *mc = |
2751 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2752 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2753 | unsigned int reg = mc->reg; |
4eaa9819 | 2754 | int min = mc->min; |
e13ac2e9 MB |
2755 | int val = snd_soc_read(codec, reg); |
2756 | ||
2757 | ucontrol->value.integer.value[0] = | |
2758 | ((signed char)(val & 0xff))-min; | |
2759 | ucontrol->value.integer.value[1] = | |
2760 | ((signed char)((val >> 8) & 0xff))-min; | |
2761 | return 0; | |
2762 | } | |
2763 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2764 | ||
2765 | /** | |
2766 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2767 | * @kcontrol: mixer control | |
ac11a2b3 | 2768 | * @ucontrol: control element information |
e13ac2e9 MB |
2769 | * |
2770 | * Callback to set the value of a signed mixer control. | |
2771 | * | |
2772 | * Returns 0 for success. | |
2773 | */ | |
2774 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2775 | struct snd_ctl_elem_value *ucontrol) | |
2776 | { | |
4eaa9819 JS |
2777 | struct soc_mixer_control *mc = |
2778 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2779 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2780 | unsigned int reg = mc->reg; |
4eaa9819 | 2781 | int min = mc->min; |
46f5822f | 2782 | unsigned int val; |
e13ac2e9 MB |
2783 | |
2784 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2785 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2786 | ||
6c508c62 | 2787 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2788 | } |
2789 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2790 | ||
637d3847 PU |
2791 | /** |
2792 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2793 | * | |
2794 | * @codec: where to look for the control | |
2795 | * @name: Name of the control | |
2796 | * @max: new maximum limit | |
2797 | * | |
2798 | * Return 0 for success, else error. | |
2799 | */ | |
2800 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2801 | const char *name, int max) | |
2802 | { | |
f0fba2ad | 2803 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2804 | struct snd_kcontrol *kctl; |
2805 | struct soc_mixer_control *mc; | |
2806 | int found = 0; | |
2807 | int ret = -EINVAL; | |
2808 | ||
2809 | /* Sanity check for name and max */ | |
2810 | if (unlikely(!name || max <= 0)) | |
2811 | return -EINVAL; | |
2812 | ||
2813 | list_for_each_entry(kctl, &card->controls, list) { | |
2814 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2815 | found = 1; | |
2816 | break; | |
2817 | } | |
2818 | } | |
2819 | if (found) { | |
2820 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2821 | if (max <= mc->max) { | |
d11bb4a9 | 2822 | mc->platform_max = max; |
637d3847 PU |
2823 | ret = 0; |
2824 | } | |
2825 | } | |
2826 | return ret; | |
2827 | } | |
2828 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2829 | ||
b6f4bb38 | 2830 | /** |
2831 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2832 | * mixer info callback | |
2833 | * @kcontrol: mixer control | |
2834 | * @uinfo: control element information | |
2835 | * | |
2836 | * Returns 0 for success. | |
2837 | */ | |
2838 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2839 | struct snd_ctl_elem_info *uinfo) | |
2840 | { | |
2841 | struct soc_mixer_control *mc = | |
2842 | (struct soc_mixer_control *)kcontrol->private_value; | |
2843 | int max = mc->max; | |
2844 | int min = mc->min; | |
2845 | ||
2846 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2847 | uinfo->count = 2; | |
2848 | uinfo->value.integer.min = 0; | |
2849 | uinfo->value.integer.max = max-min; | |
2850 | ||
2851 | return 0; | |
2852 | } | |
2853 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2854 | ||
2855 | /** | |
2856 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2857 | * mixer get callback | |
2858 | * @kcontrol: mixer control | |
2859 | * @uinfo: control element information | |
2860 | * | |
2861 | * Returns 0 for success. | |
2862 | */ | |
2863 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2864 | struct snd_ctl_elem_value *ucontrol) | |
2865 | { | |
2866 | struct soc_mixer_control *mc = | |
2867 | (struct soc_mixer_control *)kcontrol->private_value; | |
2868 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2869 | unsigned int mask = (1<<mc->shift)-1; | |
2870 | int min = mc->min; | |
2871 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2872 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2873 | ||
20630c7f SL |
2874 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2875 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2876 | return 0; |
2877 | } | |
2878 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2879 | ||
2880 | /** | |
2881 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2882 | * mixer put callback | |
2883 | * @kcontrol: mixer control | |
2884 | * @uinfo: control element information | |
2885 | * | |
2886 | * Returns 0 for success. | |
2887 | */ | |
2888 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2889 | struct snd_ctl_elem_value *ucontrol) | |
2890 | { | |
2891 | struct soc_mixer_control *mc = | |
2892 | (struct soc_mixer_control *)kcontrol->private_value; | |
2893 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2894 | unsigned int mask = (1<<mc->shift)-1; | |
2895 | int min = mc->min; | |
2896 | int ret; | |
2897 | unsigned int val, valr, oval, ovalr; | |
2898 | ||
2899 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2900 | val &= mask; | |
2901 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2902 | valr &= mask; | |
2903 | ||
2904 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2905 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2906 | ||
2907 | ret = 0; | |
2908 | if (oval != val) { | |
2909 | ret = snd_soc_write(codec, mc->reg, val); | |
2910 | if (ret < 0) | |
f1df5aec | 2911 | return ret; |
b6f4bb38 | 2912 | } |
2913 | if (ovalr != valr) { | |
2914 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2915 | if (ret < 0) | |
f1df5aec | 2916 | return ret; |
b6f4bb38 | 2917 | } |
2918 | ||
2919 | return 0; | |
2920 | } | |
2921 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2922 | ||
8c6529db LG |
2923 | /** |
2924 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2925 | * @dai: DAI | |
2926 | * @clk_id: DAI specific clock ID | |
2927 | * @freq: new clock frequency in Hz | |
2928 | * @dir: new clock direction - input/output. | |
2929 | * | |
2930 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2931 | */ | |
2932 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2933 | unsigned int freq, int dir) | |
2934 | { | |
f0fba2ad LG |
2935 | if (dai->driver && dai->driver->ops->set_sysclk) |
2936 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2937 | else |
2938 | return -EINVAL; | |
2939 | } | |
2940 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2941 | ||
2942 | /** | |
2943 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2944 | * @dai: DAI | |
ac11a2b3 | 2945 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2946 | * @div: new clock divisor. |
2947 | * | |
2948 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2949 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2950 | * and frame clocks as low as possible to save system power. | |
2951 | */ | |
2952 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2953 | int div_id, int div) | |
2954 | { | |
f0fba2ad LG |
2955 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2956 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2957 | else |
2958 | return -EINVAL; | |
2959 | } | |
2960 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2961 | ||
2962 | /** | |
2963 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2964 | * @dai: DAI | |
2965 | * @pll_id: DAI specific PLL ID | |
85488037 | 2966 | * @source: DAI specific source for the PLL |
8c6529db LG |
2967 | * @freq_in: PLL input clock frequency in Hz |
2968 | * @freq_out: requested PLL output clock frequency in Hz | |
2969 | * | |
2970 | * Configures and enables PLL to generate output clock based on input clock. | |
2971 | */ | |
85488037 MB |
2972 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2973 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2974 | { |
f0fba2ad LG |
2975 | if (dai->driver && dai->driver->ops->set_pll) |
2976 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2977 | freq_in, freq_out); |
8c6529db LG |
2978 | else |
2979 | return -EINVAL; | |
2980 | } | |
2981 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2982 | ||
2983 | /** | |
2984 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2985 | * @dai: DAI | |
8c6529db LG |
2986 | * @fmt: SND_SOC_DAIFMT_ format value. |
2987 | * | |
2988 | * Configures the DAI hardware format and clocking. | |
2989 | */ | |
2990 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2991 | { | |
f0fba2ad LG |
2992 | if (dai->driver && dai->driver->ops->set_fmt) |
2993 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2994 | else |
2995 | return -EINVAL; | |
2996 | } | |
2997 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2998 | ||
2999 | /** | |
3000 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3001 | * @dai: DAI | |
a5479e38 DR |
3002 | * @tx_mask: bitmask representing active TX slots. |
3003 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3004 | * @slots: Number of slots in use. |
a5479e38 | 3005 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3006 | * |
3007 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3008 | * specific. | |
3009 | */ | |
3010 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3011 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3012 | { |
f0fba2ad LG |
3013 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3014 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3015 | slots, slot_width); |
8c6529db LG |
3016 | else |
3017 | return -EINVAL; | |
3018 | } | |
3019 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3020 | ||
472df3cb BS |
3021 | /** |
3022 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3023 | * @dai: DAI | |
3024 | * @tx_num: how many TX channels | |
3025 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3026 | * 0~num-1 uses | |
3027 | * @rx_num: how many RX channels | |
3028 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3029 | * 0~num-1 uses | |
3030 | * | |
3031 | * configure the relationship between channel number and TDM slot number. | |
3032 | */ | |
3033 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3034 | unsigned int tx_num, unsigned int *tx_slot, | |
3035 | unsigned int rx_num, unsigned int *rx_slot) | |
3036 | { | |
f0fba2ad LG |
3037 | if (dai->driver && dai->driver->ops->set_channel_map) |
3038 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3039 | rx_num, rx_slot); |
3040 | else | |
3041 | return -EINVAL; | |
3042 | } | |
3043 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3044 | ||
8c6529db LG |
3045 | /** |
3046 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3047 | * @dai: DAI | |
3048 | * @tristate: tristate enable | |
3049 | * | |
3050 | * Tristates the DAI so that others can use it. | |
3051 | */ | |
3052 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3053 | { | |
f0fba2ad LG |
3054 | if (dai->driver && dai->driver->ops->set_tristate) |
3055 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3056 | else |
3057 | return -EINVAL; | |
3058 | } | |
3059 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3060 | ||
3061 | /** | |
3062 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3063 | * @dai: DAI | |
3064 | * @mute: mute enable | |
3065 | * | |
3066 | * Mutes the DAI DAC. | |
3067 | */ | |
3068 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3069 | { | |
f0fba2ad LG |
3070 | if (dai->driver && dai->driver->ops->digital_mute) |
3071 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3072 | else |
3073 | return -EINVAL; | |
3074 | } | |
3075 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3076 | ||
c5af3a2e MB |
3077 | /** |
3078 | * snd_soc_register_card - Register a card with the ASoC core | |
3079 | * | |
ac11a2b3 | 3080 | * @card: Card to register |
c5af3a2e MB |
3081 | * |
3082 | * Note that currently this is an internal only function: it will be | |
3083 | * exposed to machine drivers after further backporting of ASoC v2 | |
3084 | * registration APIs. | |
3085 | */ | |
3086 | static int snd_soc_register_card(struct snd_soc_card *card) | |
3087 | { | |
f0fba2ad LG |
3088 | int i; |
3089 | ||
c5af3a2e MB |
3090 | if (!card->name || !card->dev) |
3091 | return -EINVAL; | |
3092 | ||
2eea392d JN |
3093 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3094 | (card->num_links + card->num_aux_devs), | |
3095 | GFP_KERNEL); | |
f0fba2ad LG |
3096 | if (card->rtd == NULL) |
3097 | return -ENOMEM; | |
2eea392d | 3098 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3099 | |
3100 | for (i = 0; i < card->num_links; i++) | |
3101 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3102 | ||
c5af3a2e MB |
3103 | INIT_LIST_HEAD(&card->list); |
3104 | card->instantiated = 0; | |
f0fba2ad | 3105 | mutex_init(&card->mutex); |
c5af3a2e MB |
3106 | |
3107 | mutex_lock(&client_mutex); | |
3108 | list_add(&card->list, &card_list); | |
435c5e25 | 3109 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3110 | mutex_unlock(&client_mutex); |
3111 | ||
3112 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3113 | ||
3114 | return 0; | |
3115 | } | |
3116 | ||
3117 | /** | |
3118 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3119 | * | |
ac11a2b3 | 3120 | * @card: Card to unregister |
c5af3a2e MB |
3121 | * |
3122 | * Note that currently this is an internal only function: it will be | |
3123 | * exposed to machine drivers after further backporting of ASoC v2 | |
3124 | * registration APIs. | |
3125 | */ | |
3126 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
3127 | { | |
3128 | mutex_lock(&client_mutex); | |
3129 | list_del(&card->list); | |
3130 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3131 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3132 | ||
3133 | return 0; | |
3134 | } | |
3135 | ||
f0fba2ad LG |
3136 | /* |
3137 | * Simplify DAI link configuration by removing ".-1" from device names | |
3138 | * and sanitizing names. | |
3139 | */ | |
3140 | static inline char *fmt_single_name(struct device *dev, int *id) | |
3141 | { | |
3142 | char *found, name[NAME_SIZE]; | |
3143 | int id1, id2; | |
3144 | ||
3145 | if (dev_name(dev) == NULL) | |
3146 | return NULL; | |
3147 | ||
3148 | strncpy(name, dev_name(dev), NAME_SIZE); | |
3149 | ||
3150 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3151 | found = strstr(name, dev->driver->name); | |
3152 | if (found) { | |
3153 | /* get ID */ | |
3154 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3155 | ||
3156 | /* discard ID from name if ID == -1 */ | |
3157 | if (*id == -1) | |
3158 | found[strlen(dev->driver->name)] = '\0'; | |
3159 | } | |
3160 | ||
3161 | } else { | |
3162 | /* I2C component devices are named "bus-addr" */ | |
3163 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3164 | char tmp[NAME_SIZE]; | |
3165 | ||
3166 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3167 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3168 | |
3169 | /* sanitize component name for DAI link creation */ | |
3170 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
3171 | strncpy(name, tmp, NAME_SIZE); | |
3172 | } else | |
3173 | *id = 0; | |
3174 | } | |
3175 | ||
3176 | return kstrdup(name, GFP_KERNEL); | |
3177 | } | |
3178 | ||
3179 | /* | |
3180 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3181 | * any ".-1" and using the DAI name (instead of device name). | |
3182 | */ | |
3183 | static inline char *fmt_multiple_name(struct device *dev, | |
3184 | struct snd_soc_dai_driver *dai_drv) | |
3185 | { | |
3186 | if (dai_drv->name == NULL) { | |
3187 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3188 | dev_name(dev)); | |
3189 | return NULL; | |
3190 | } | |
3191 | ||
3192 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3193 | } | |
3194 | ||
9115171a MB |
3195 | /** |
3196 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3197 | * | |
ac11a2b3 | 3198 | * @dai: DAI to register |
9115171a | 3199 | */ |
f0fba2ad LG |
3200 | int snd_soc_register_dai(struct device *dev, |
3201 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3202 | { |
f0fba2ad LG |
3203 | struct snd_soc_dai *dai; |
3204 | ||
3205 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3206 | |
f0fba2ad LG |
3207 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3208 | if (dai == NULL) | |
3209 | return -ENOMEM; | |
9115171a | 3210 | |
f0fba2ad LG |
3211 | /* create DAI component name */ |
3212 | dai->name = fmt_single_name(dev, &dai->id); | |
3213 | if (dai->name == NULL) { | |
3214 | kfree(dai); | |
3215 | return -ENOMEM; | |
3216 | } | |
6335d055 | 3217 | |
f0fba2ad LG |
3218 | dai->dev = dev; |
3219 | dai->driver = dai_drv; | |
3220 | if (!dai->driver->ops) | |
3221 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3222 | |
3223 | mutex_lock(&client_mutex); | |
3224 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3225 | snd_soc_instantiate_cards(); |
9115171a MB |
3226 | mutex_unlock(&client_mutex); |
3227 | ||
3228 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3229 | ||
3230 | return 0; | |
3231 | } | |
3232 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3233 | ||
3234 | /** | |
3235 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3236 | * | |
ac11a2b3 | 3237 | * @dai: DAI to unregister |
9115171a | 3238 | */ |
f0fba2ad | 3239 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3240 | { |
f0fba2ad LG |
3241 | struct snd_soc_dai *dai; |
3242 | ||
3243 | list_for_each_entry(dai, &dai_list, list) { | |
3244 | if (dev == dai->dev) | |
3245 | goto found; | |
3246 | } | |
3247 | return; | |
3248 | ||
3249 | found: | |
9115171a MB |
3250 | mutex_lock(&client_mutex); |
3251 | list_del(&dai->list); | |
3252 | mutex_unlock(&client_mutex); | |
3253 | ||
3254 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3255 | kfree(dai->name); |
3256 | kfree(dai); | |
9115171a MB |
3257 | } |
3258 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3259 | ||
3260 | /** | |
3261 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3262 | * | |
ac11a2b3 MB |
3263 | * @dai: Array of DAIs to register |
3264 | * @count: Number of DAIs | |
9115171a | 3265 | */ |
f0fba2ad LG |
3266 | int snd_soc_register_dais(struct device *dev, |
3267 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3268 | { |
f0fba2ad LG |
3269 | struct snd_soc_dai *dai; |
3270 | int i, ret = 0; | |
3271 | ||
720ffa4c | 3272 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3273 | |
3274 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3275 | |
3276 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3277 | if (dai == NULL) { |
3278 | ret = -ENOMEM; | |
3279 | goto err; | |
3280 | } | |
f0fba2ad LG |
3281 | |
3282 | /* create DAI component name */ | |
3283 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3284 | if (dai->name == NULL) { | |
3285 | kfree(dai); | |
3286 | ret = -EINVAL; | |
9115171a | 3287 | goto err; |
f0fba2ad LG |
3288 | } |
3289 | ||
3290 | dai->dev = dev; | |
f0fba2ad | 3291 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3292 | if (dai->driver->id) |
3293 | dai->id = dai->driver->id; | |
3294 | else | |
3295 | dai->id = i; | |
f0fba2ad LG |
3296 | if (!dai->driver->ops) |
3297 | dai->driver->ops = &null_dai_ops; | |
3298 | ||
3299 | mutex_lock(&client_mutex); | |
3300 | list_add(&dai->list, &dai_list); | |
3301 | mutex_unlock(&client_mutex); | |
3302 | ||
3303 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3304 | } |
3305 | ||
f0fba2ad | 3306 | snd_soc_instantiate_cards(); |
9115171a MB |
3307 | return 0; |
3308 | ||
3309 | err: | |
3310 | for (i--; i >= 0; i--) | |
f0fba2ad | 3311 | snd_soc_unregister_dai(dev); |
9115171a MB |
3312 | |
3313 | return ret; | |
3314 | } | |
3315 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3316 | ||
3317 | /** | |
3318 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3319 | * | |
ac11a2b3 MB |
3320 | * @dai: Array of DAIs to unregister |
3321 | * @count: Number of DAIs | |
9115171a | 3322 | */ |
f0fba2ad | 3323 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3324 | { |
3325 | int i; | |
3326 | ||
3327 | for (i = 0; i < count; i++) | |
f0fba2ad | 3328 | snd_soc_unregister_dai(dev); |
9115171a MB |
3329 | } |
3330 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3331 | ||
12a48a8c MB |
3332 | /** |
3333 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3334 | * | |
ac11a2b3 | 3335 | * @platform: platform to register |
12a48a8c | 3336 | */ |
f0fba2ad LG |
3337 | int snd_soc_register_platform(struct device *dev, |
3338 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3339 | { |
f0fba2ad LG |
3340 | struct snd_soc_platform *platform; |
3341 | ||
3342 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3343 | ||
3344 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3345 | if (platform == NULL) | |
3346 | return -ENOMEM; | |
3347 | ||
3348 | /* create platform component name */ | |
3349 | platform->name = fmt_single_name(dev, &platform->id); | |
3350 | if (platform->name == NULL) { | |
3351 | kfree(platform); | |
3352 | return -ENOMEM; | |
3353 | } | |
12a48a8c | 3354 | |
f0fba2ad LG |
3355 | platform->dev = dev; |
3356 | platform->driver = platform_drv; | |
12a48a8c MB |
3357 | |
3358 | mutex_lock(&client_mutex); | |
3359 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3360 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3361 | mutex_unlock(&client_mutex); |
3362 | ||
3363 | pr_debug("Registered platform '%s'\n", platform->name); | |
3364 | ||
3365 | return 0; | |
3366 | } | |
3367 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3368 | ||
3369 | /** | |
3370 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3371 | * | |
ac11a2b3 | 3372 | * @platform: platform to unregister |
12a48a8c | 3373 | */ |
f0fba2ad | 3374 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3375 | { |
f0fba2ad LG |
3376 | struct snd_soc_platform *platform; |
3377 | ||
3378 | list_for_each_entry(platform, &platform_list, list) { | |
3379 | if (dev == platform->dev) | |
3380 | goto found; | |
3381 | } | |
3382 | return; | |
3383 | ||
3384 | found: | |
12a48a8c MB |
3385 | mutex_lock(&client_mutex); |
3386 | list_del(&platform->list); | |
3387 | mutex_unlock(&client_mutex); | |
3388 | ||
3389 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3390 | kfree(platform->name); |
3391 | kfree(platform); | |
12a48a8c MB |
3392 | } |
3393 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3394 | ||
151ab22c MB |
3395 | static u64 codec_format_map[] = { |
3396 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3397 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3398 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3399 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3400 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3401 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3402 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3403 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3404 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3405 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3406 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3407 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3408 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3409 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3410 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3411 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3412 | }; | |
3413 | ||
3414 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3415 | * the endianness of the data but we're using the CPU format | |
3416 | * definitions which do need to include endianness so we ensure that | |
3417 | * codec DAIs always have both big and little endian variants set. | |
3418 | */ | |
3419 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3420 | { | |
3421 | int i; | |
3422 | ||
3423 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3424 | if (stream->formats & codec_format_map[i]) | |
3425 | stream->formats |= codec_format_map[i]; | |
3426 | } | |
3427 | ||
0d0cf00a MB |
3428 | /** |
3429 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3430 | * | |
ac11a2b3 | 3431 | * @codec: codec to register |
0d0cf00a | 3432 | */ |
f0fba2ad LG |
3433 | int snd_soc_register_codec(struct device *dev, |
3434 | struct snd_soc_codec_driver *codec_drv, | |
3435 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3436 | { |
3335ddca | 3437 | size_t reg_size; |
f0fba2ad LG |
3438 | struct snd_soc_codec *codec; |
3439 | int ret, i; | |
151ab22c | 3440 | |
f0fba2ad LG |
3441 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3442 | ||
3443 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3444 | if (codec == NULL) | |
3445 | return -ENOMEM; | |
0d0cf00a | 3446 | |
f0fba2ad LG |
3447 | /* create CODEC component name */ |
3448 | codec->name = fmt_single_name(dev, &codec->id); | |
3449 | if (codec->name == NULL) { | |
3450 | kfree(codec); | |
3451 | return -ENOMEM; | |
3452 | } | |
3453 | ||
23bbce34 DP |
3454 | if (codec_drv->compress_type) |
3455 | codec->compress_type = codec_drv->compress_type; | |
3456 | else | |
3457 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3458 | ||
ce6120cc LG |
3459 | INIT_LIST_HEAD(&codec->dapm.widgets); |
3460 | INIT_LIST_HEAD(&codec->dapm.paths); | |
c3acec26 MB |
3461 | codec->write = codec_drv->write; |
3462 | codec->read = codec_drv->read; | |
ce6120cc LG |
3463 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3464 | codec->dapm.dev = dev; | |
3465 | codec->dapm.codec = codec; | |
7a30a3db DP |
3466 | codec->dev = dev; |
3467 | codec->driver = codec_drv; | |
3468 | codec->num_dai = num_dai; | |
3469 | mutex_init(&codec->mutex); | |
ce6120cc | 3470 | |
f0fba2ad LG |
3471 | /* allocate CODEC register cache */ |
3472 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca DP |
3473 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
3474 | /* it is necessary to make a copy of the default register cache | |
3475 | * because in the case of using a compression type that requires | |
3476 | * the default register cache to be marked as __devinitconst the | |
3477 | * kernel might have freed the array by the time we initialize | |
3478 | * the cache. | |
3479 | */ | |
3480 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3481 | reg_size, GFP_KERNEL); | |
3482 | if (!codec->reg_def_copy) { | |
3483 | ret = -ENOMEM; | |
3484 | goto error_cache; | |
3485 | } | |
7a30a3db DP |
3486 | ret = snd_soc_cache_init(codec); |
3487 | if (ret < 0) { | |
3488 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
3489 | ret); | |
3490 | goto error_cache; | |
f0fba2ad | 3491 | } |
151ab22c MB |
3492 | } |
3493 | ||
f0fba2ad LG |
3494 | for (i = 0; i < num_dai; i++) { |
3495 | fixup_codec_formats(&dai_drv[i].playback); | |
3496 | fixup_codec_formats(&dai_drv[i].capture); | |
3497 | } | |
3498 | ||
26b01ccd MB |
3499 | /* register any DAIs */ |
3500 | if (num_dai) { | |
3501 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3502 | if (ret < 0) | |
7a30a3db | 3503 | goto error_dais; |
26b01ccd | 3504 | } |
f0fba2ad | 3505 | |
0d0cf00a MB |
3506 | mutex_lock(&client_mutex); |
3507 | list_add(&codec->list, &codec_list); | |
3508 | snd_soc_instantiate_cards(); | |
3509 | mutex_unlock(&client_mutex); | |
3510 | ||
3511 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3512 | return 0; |
f0fba2ad | 3513 | |
7a30a3db DP |
3514 | error_dais: |
3515 | snd_soc_cache_exit(codec); | |
3516 | error_cache: | |
3335ddca DP |
3517 | kfree(codec->reg_def_copy); |
3518 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3519 | kfree(codec->name); |
3520 | kfree(codec); | |
3521 | return ret; | |
0d0cf00a MB |
3522 | } |
3523 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3524 | ||
3525 | /** | |
3526 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3527 | * | |
ac11a2b3 | 3528 | * @codec: codec to unregister |
0d0cf00a | 3529 | */ |
f0fba2ad | 3530 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3531 | { |
f0fba2ad LG |
3532 | struct snd_soc_codec *codec; |
3533 | int i; | |
3534 | ||
3535 | list_for_each_entry(codec, &codec_list, list) { | |
3536 | if (dev == codec->dev) | |
3537 | goto found; | |
3538 | } | |
3539 | return; | |
3540 | ||
3541 | found: | |
26b01ccd MB |
3542 | if (codec->num_dai) |
3543 | for (i = 0; i < codec->num_dai; i++) | |
3544 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3545 | |
0d0cf00a MB |
3546 | mutex_lock(&client_mutex); |
3547 | list_del(&codec->list); | |
3548 | mutex_unlock(&client_mutex); | |
3549 | ||
3550 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3551 | |
7a30a3db | 3552 | snd_soc_cache_exit(codec); |
3335ddca | 3553 | kfree(codec->reg_def_copy); |
1aafcd4d | 3554 | kfree(codec->name); |
f0fba2ad | 3555 | kfree(codec); |
0d0cf00a MB |
3556 | } |
3557 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3558 | ||
c9b3a40f | 3559 | static int __init snd_soc_init(void) |
db2a4165 | 3560 | { |
384c89e2 MB |
3561 | #ifdef CONFIG_DEBUG_FS |
3562 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3563 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3564 | printk(KERN_WARNING | |
3565 | "ASoC: Failed to create debugfs directory\n"); | |
3566 | debugfs_root = NULL; | |
3567 | } | |
c3c5a19a MB |
3568 | |
3569 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3570 | &codec_list_fops)) | |
3571 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3572 | ||
f3208780 MB |
3573 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3574 | &dai_list_fops)) | |
3575 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3576 | |
3577 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3578 | &platform_list_fops)) | |
3579 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3580 | #endif |
3581 | ||
db2a4165 FM |
3582 | return platform_driver_register(&soc_driver); |
3583 | } | |
4abe8e16 | 3584 | module_init(snd_soc_init); |
db2a4165 | 3585 | |
7d8c16a6 | 3586 | static void __exit snd_soc_exit(void) |
db2a4165 | 3587 | { |
384c89e2 MB |
3588 | #ifdef CONFIG_DEBUG_FS |
3589 | debugfs_remove_recursive(debugfs_root); | |
3590 | #endif | |
3ff3f64b | 3591 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3592 | } |
db2a4165 FM |
3593 | module_exit(snd_soc_exit); |
3594 | ||
3595 | /* Module information */ | |
d331124d | 3596 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3597 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3598 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3599 | MODULE_ALIAS("platform:soc-audio"); |